UNITED STATES DEPARTMENT OF THE INTEB.IOR HAROLD L. ICKES, Secretary GEOLOGICAL SURVEY W. E. WBATHBB, Director
Water-Supply Paper 981 SURFACE WATER SUPPLY of the UNITED STATES 1943
PART 11 PACIFIC SLOPE BASINS IN CALIFORNIA
Prepared under the direction of GLENN L. PARKER, Chief Pydraulic Engineer AND OF H. D. McGLASHAN AND G. H. CANFIELD, §**«§* Engineers fr * -g In cooperation with the Stateljbf «, ^ CALIFORNIA AND OREGOSfc. %- *? and other agencies «£ ^
"S. 1
UNITED STATES GOVERNMENT PRINTING OFFICE WASHINGTON : 1944
For sale by the Superintendent of Documents, U. S. Government Printing Office, Washington 25, D. C. CONTENTS
Page Scope of work...... 1 Definition of terms...... 1 Explanation of data...... 2 Time basla...... 5 Accuracy of field data and computed results...... 6 Publications...... - . - 6 Records of discharge collected by agencies other than the Geological Survey...... 12 Cooperation...... 14 Division of work...... 14 Oaging-statlon records...... 15 Tia Juana River Basin...... 15 Cottonwood Creek at Morena Dam, Calif...... 15 Cottonwood Creek near Dulzura, Calif...... 15 Cottonwood Creek above Tecate Creek, near Dulzura, Calif...... 16 Tia Juana River near Dulzura, Calif...... 17 Tia Juana River near Nestor, Calif...... 18 Dulzura conduit near Dulzura, Calif...... 19 Campo Creek near Campo, Calif...... 20 Otay River Basin...... 21 Jamul Creek near Jamul, Calif...... 21 Otay River at Savage Dam, Calif...... 22 Sweetwater Rlyer Basin...... 22 Sweetwater River at Sweetwater Dam, callf...... v ...... 22 San Diego River Basin...... 23 San Diego River at El Capltan Dam, Calif...... 23 San Diego River near Santee, Calif...... 23 Boulder Creek at Cuyamaca Reservoir, near Julian, Calif...... 24 San Vlcente Creek near Foster, Calif...... 25 San Vlcente Creek at San Vlcente Dam, at Foster, Calif...... 25 San Dlegulto River Basin...... '..... 26 Santa Ysabel Creek near Mesa Orande, Calif...... 23 San Dleguito River at Lake Hodges, Calif...... 27 San Luls Rey*River Basin...... 27 San Luls Rey River at Lake Henshaw, near Mesa Grande, Calif...... 27 San Luis Rey River near Bonsall, Calif...... 28 Santa Margarita River Basin...... 29 Temecula Creek at Nigger Canyon, near Temecula, Calif...... 29 Temecula Creek at Railroad Canyon, near Temecula, Calif...... 30 Santa Margarita River near Fall Brook, Calif...... 31 Santa Margarita River at Ysldora, Calif...... 32 Murrieta Creek at Temecula, Calif...... 33 O'Nelll"ditch near Ysidora, Calif...... 34 San Juan Creek Basin...... 35 San Juan Creek near San Juan Capistrano, Calif...... 35 Trabuco Creek near San Juan Capistrano, Calif...... 36 Aliso Creek Basin...... 37 Aliso Creek at El Toro, Calif...... 37 Santa Ana River Basin...... 38 Santa Ana River near Mentone, Calif...... 38 Santa Ana River at E Street Bridge, near San Bernardino, Calif...... 40 Santa Ana River at Riverside Narrows, near Arlington, Callf...... 41 Santa Ana River at Hamner Avenue, near Corona, Calif...... 42 Santa Ana River at Auburndale Bridge, near Corona, Callf...... 43 Santa Ana River below Prado Dam, near Prado, Calif...... 44 Santa Ana River at Santa Ana, Callf...... 45 Southern California Edison Co.'s canal and Greenspot pipe line near Mentone,Calif. 46 Mill Creek near Mentone, Calif...... 48 v Mill Creek power canals 2 and 3 near Craftonville, Calif...... 49 Mill Greek power canal 1 near Craftonvllle, Calif...... 50 Plunge Creek near East Highlands, Calif...... 51 San Tlmoteo Creek near Redlands, Callf...... 52 Warm Creek near Colton, Calif...... 53 Strawberry Cresk near Arrowhead Springs, Calif...... 55 Waterman Canyon Creek near Arrowhead Springs, callf...... 56 City Creek near Highland, Calif...... 57 City Creek Water Co.'s canal near Highland, Calif...... 59 Devil canyon Creek near San Bernardino, Calif...... 60 Lytle creek near Fontana, Calif...... 61 Lytle Creek (east channel) at San Bernardino, Calif...... 63 Lytle Creek (west channel) at Colton, Calif...... 64 Cajon Creek near Keenbrook, Calif...... 65 Meeks & Daley Canal near Colton, Calif...... 66 Day Creek near Etlwanda, Calif...... 67 Cucamonga Creek near Upland, Calif...... 68 San Jaclnto River near San Jaclnto, Calif...... 69 San Jaclnto River near Elsinore, Calif...... 70 Elslnore Lake at Elslnore, Calif...... 71 Temescal Creek near Corona, Calif...... 72 San Antonio Creek near Claremont, Calif...... 73 Southern California Edison Co.'s conduit near Claremont, Calif...... 75 Santiago Creek near- Villa Park, Calif...... 76 Santiago Creek at Santa Ana, Calif...... 77 III IV CONTENTS
Gaging-station records Continued. Page San Gabriel River Basin...... 78 East Fork San Gabriel River near Camp Bonita, Calif...... 78 San Gabriel River near Azusa, Calif...... 79 San Gabriel River below Santa Fe Dam, near Baldwin Park, Calif...... 80 San Gabriel River at Pico, Calif...... 81 San Gabriel River at Spring Street, near Los Alamitos, Calif...... 82 West Fork San Gabriel River at Camp Rincon, Calif...... 83 Rogers Creek near Azusa, Calif...... 84 Fish Creek near Duarte, Calif...... 85 Sawpit Creek near Monrovia, Calif...... 86 San Dimas Creek near San Dimas. Calif...... 87 Dalton Creek near Glendora, Calif...... 88 Little Dalton Creek near Glendora, Calif...... '. .. 89 San Jose Creek near Whittier, Calif...... 90 Coyote Creek near Artesia, Calif...... 91 Brea Creek below Brea Dam, near Fullerton, Calif...... 92 Brea Creek at Fullerton, Calif...... 93 Fullerton Creek below Fullerton Dam, near Brea, Calif...... 94 Fullerton. Creek at Fullerton, Calif...... 95 Los Angeles River Basin...... 96 Los Angeles River at Sepulveda Dam, Calif...... 96 Los Angeles River below Sepulveda Dam, Calif...... 97 Los Angeles River at Los Angeles, Calif...... 98 Los Angeles River near Downey, Calif...... 99 Los Angeles River at Long Beach, Calif...... '...... 100 Pacoima Creek near San Fernando, Calif...... 101 Tujunga Creek near Colby Ranch, Calif...... 102 Tujunga Creek near Sunland, Calif...... 103 Tujunga Creek below Hansen Dam, Calif...... 104 Little Tujunga Creek near San Fernando, Calif...... 105 Halnes Creek near Tujunga, Calif...... 106 Arroyo Seco near Pasadena, Calif...... 107 Santa Anita Creek near Sierra Madre, Calif...... 108 Little Santa Anita Creek near Sierra Macire, Calif...... 109 - Eaton Creek near Pasadena, Calif...... 110 Rio Hondo near Montebello, Calif...... 111 Rio Hondo near Downey, Callf...... 112 Rio Hondo Slough near Montebello, Calif,...... 113 Ballona Creek Basin...... 114 Ballona Creek near Culver City,, Calif...... 114 Topanga Creek Basin...... 115 Topanga Creek near Topanga Beach, Calif...... 115 Malibu Creek Basin...... 116 Malibu Creek at Crater Camp, near Calabasas, Calif...... ^ ...... '.... 116 Santa Clara River Basin...... t .^...,..,....,... 117 Santa Clara River near Saugus, Calif...... 117 Piru Creek near Piru, Calif...... 118 Hopper Creek near Piru, Calif...... 119 Sespe Creek near Fillmore, Calif...... 120 Fillmore Irrigation Co.'s canal near Fillmore, Calif...... 121 Santa Paula Creek near Santa Paula, Calif...... 122 Ventura River Basin...... 123 Matilija Creek at Matilija, Calif...... 123 Ventura River near Ventura, Calif...... 124 North Fork Matilija Creek at Matilija, Calif...... 125 Coyote Creek near Ventura, Calif...... 126 Carpinteria Creek Basin...... 127 Carpinteria Creek near Carpinteria, Calif...... 127 Alascadero Creek Basin...... ,...... 128 Alascadero Creek near Goleta, Callf...... 128 San Jose Creek Basin...... '...... ,...... 129 San Jose Creek near Goleta, Calif...... 129 Santa Ynez River Basin...... 4 ...... 130 Santa Yne2 Riv'er at JamSson Lake, near Mbntecito, Calif...... 130 Santa Y«e2 River near Santa Barbara, Calif...... 131 Santa Ynez River below Gibraltar Dam, near Santa Barbara, Calif...... 1E3_ Santa Yriez River near Santa Ynez, Calif...... 133 Santa Ynez River near Lomp'oc, Calif...... 134 Santa 'Ynez River at Pine Canyon, near Lompoc, Calif...... 135 Santa Cruz 'Creek near Santa Ynes, Calif...... 136 Santa Agueda Creek near Santa Ynez, Calif...... 137 La Zaca Creek at Buellton, Calif...... ,.. 138 Salsipuedes Creek near Lompoc, Calif...... 139 San Antonio Creek Basin...... 140 San Antonio Creek .at Harris, Calif...... 140 Santa Maria River Basin...... 141 Cuyama River near Santa Maria, CalIf...... 141 Santa Maria River at Guadalupe, Calif...... 142 Huasna River near Santa Maria, Calif...... 143 Sisquoc River near Gary, Calif...... 144 Arroyo Grande Basin...... 145 Arroyo Grande at Arroyo Grantie, Calif ...... ^...... 145 San Luis Obi'spo Creek Basin...... 146 Steiner Creek near San Luis Obispo, Calif...... 146 Salinas River Basin...... 147 Salinas River near Pozo, Calif...... 147 Salinas Reservoir near Pozo, Calif...... 148 Salinas River above Pilltas Creek near Santa Margarita, Calif...... 149 Salinas River near Santa Margarita, Calif...... 150 CONTENTS
Gaging-station records Continued. Sallnas River Basin Continued. Page Sallnas River at Paso Robles, Calif...... 151 Sallnas River near Spreckels, Calir...... 152 Toro Creek near Pozo, Calif...... 153 Santa Margarita Creek near Santa Margarita, Calif...... 154 Tassajera Creek near Santa Mai-garlta, Calif...... 155 Naclmiento River near San Mlguel, Calif...... -156 San Antonio River at Pleyto, Calif...... 157 Arroyo Seco near Soledad, Calif...... 158 Pajaro River Basin...... 159 Pajaro River near Chittenden, Calif...... 159 Pacheco Creek near Dunnevllle, Calif...... 160 Uvas Creek near Morgan Hill, Calif...... 161 Tres Plnos Creek near Tres Pinos, Calif...... 162 San Benito River near Willow Creek School, Calif...... 163 San Lorenzo River Basin...... 164 San Lorenzo River at Big Trees, Calif...... 164 " Branclforte Creek at Santa Cruz, Calif...... 165 Stevens Creek Basin...... 166 Stevens Creek near Cupertino, Calif...... 166 Guadalupe Creek Basin...... 167 Guadalupe Creek at Guadalupe, Calif...... 167 Quadalupe Creek at San Jose, Calif...... 168 Alamltos Creek near Edenvale, Calif...... 169 Los Gates Creek at Los Gatos, Calif...... 170 Campbell Creek at Saratoga, Calif...... 171 Coyote Creek Basin...... 172 Coyote Creek near Madrone, Calif...... 172 Coyote Creek near Edenvale, Calif...... 173 Alameda Creek Basin...... 174 Alameda Creek near Nlles, Calif...... 174 Kern River Basin1 ...... 175 Kern River near Kernville, Calif...... 175 Kern River near Bakersfield, Calif...... 177 Kern River No. 3 canal near Kernville, Calif...... fc..... 178 Borel Canal at Tilley Creek, Calif...... ,...... "..... 179 South Fork Kern River at Isabella, Calif...... ,...... 180 Tulare Lake Basin...... 181 Tulare Lake in Kings County, Calif...... 181 North Fork of Middle Fork Tule River near Sprlngvllle, Calif...... 182 Tule River near Portervllle, Calif...... 183 Pacific Ga's & Electric Co. conduit near Springvilie, Calif..,...... ,...... '.. 184 South Fork Tule River near Success. Calif...... 185 .Kaweah River near Three Rivers, Calif...... 186 North Fork Kaweah River at Kaweah, Calif...... "...... 187 Kings River above North Fork, Calif...... 188 Kings River at Piedra, Calif...... 189 North Fork Kings River near Cliff Camp, Calif...... v...... 190 North Fork Kings River below Rancherla Creek, Calif...... ,u.... 191 Dog Creek near Academy, Calif...... 192 Dry Creek near Academy, Calif...... '...... '...... 194 San Joaquln River Basin...... 196 San Joaquln River main stem...... 196 "*" San Joaquln River above Big Creek, Calif...... ;...... - 196 Miller Lake at Frlant, Calif...... 197 San Joaquin River below Frlant, Calif...... 199 San Joaquin River near Newman, Calif...... 200 San Joaquin River near Vernalls, Calif...... 201 San Joaquin River tributaries above Fresno River...... 202 Florence Lake near Big Creek, Calif...... 202 South Fork San Joaquin River near Florence Lake, Calif...... 203 Wapd tunnel at Intake, Calif...... 204 Ward tunnel at outlet, Calif...... 205 Bear Creek near Vermilion Valley, Calif...... 206 Mono Creek near Vermilion Valley, Calif...... 207 Huntington Lake near Big Creek, Calif...... 208 Big Creek below Huntington Lake, Calif...... 209 Pitman Creek below Tamarack Creek, Calif...... 210 Shaver Lake near Big Creek, Calif...... t...... '...... 211 ' Huntington-Shaver conduit at outlet, Calif...... 212 Willow Creek below Crane Valley Reservoir, Calif....,...... , t ...... 213 Pacific Gas & Electric Co. conduit No. 3 near Crane Valley Reservoir, Calif..... 214 Fine Gold Creek near Friant, Calif...... ', ...... 215 Cottonwood Creek near Frlant Calif...... S16 Little Dry Creek near Friant, Calif...... 218 Fresno River Basin...... 220 Fresno River near .Knowles, Calif...... 220 Chowchilla River Basin...... 221 ChowchilLa River at Buchanan dam site, Calif...... 221 Merced River Basin...... 222 Merced River at Happy Isles Bridge, near Yosemite, Calif...... 222 Merced River at Pohono Bridge, near Yosemite, Calif...... 223 Merced River at Kittrldge, Calif...... 224 Lake Mcclure at Exchequer, Calif...... 225 Merced River at Exchequer, Calif...... 226 Merced River near Llvlngston, Calif...... 227 Tenaya Creek hear Yosemite, Calif...... 228 Oreatimba Creek Basin...... 229 Orestlm'ba Creek near Newman, Calif...... 229 VI CONTENTS
Gaglng-statlon records Continue*. San Joaquln River Basin Continued. Page Tuolunme River Basin...... 230 Hetch Hetchy Reservoir at Hetch Hetchy, Calif...... 230 Tuolumne River near Hetch Hetchy, Calif...... 231 Don Pedro Reservoir near La Orange, Calif...... 232 Tuolumne River above La Grange Dam, near La Grange, Calif...... 233 Tuolumne River at Tuolumne City, Callf...... 234 Falls Creek near -{fetch Hetchy, Calif...... 235 Cherry Creek near Hetch Hetchy, Calif...... 236 Lake Eleanor near Hetch Hetchy, Calif...... 237 Eleanor Creek near Hetch Hetchy, Calif...... 238 South Fork Tuolumne River near Oakland Recreation Camp, Calif...... 239 Middle Tuolumne River at Oakland Recreation Camp, Callf...... 240 Woods Creek near Jacksonville, Calif...... 241 Modesto Canal near La Orange, Calif...... 242 Turlock Canal near La Grange, Calif...... 243 Stanislaus River Basin...... 244 Middle Fork Stanislaus River at Kennedy Meadows, Calif...... 244 Middle Fork Stanislaus River at Sand Bar Flat, near Avery, Calif...... 245 Melones Reservoir at Melones Dam, Calif...... 246 Stanislaus River below Melones powerhouse, Calif...... 247 Stanislaus River at Ripon, Calif...... 248 North Fork Stanislaus River near Avery, Calif...... 249 South Fork Stanislaus River at Strawberry, Calif...... 250 South Fork Stanislaus River near Long Barn, Calif...... 251 Philadelphia Canal near Strawberry, Callf...... 252 Tuolumne Canal near Long Barn, ca" f...... 253 South San Joaquln Canal near Knights Ferry, Calif...... 254 Oakdale Canal near Knights Ferry, Caj.if...... 255 Calaveras River Basin...... 256 Calaveras River at Jenny Llnd, Calir...... 256 Cosgrove Creek near Valley Springs, Calif...... 257 Mokelumne Siver Basin...... 258 Salt Springs Reservoir near West Point, Calif...... 258 North Fork Mokelumne River below Salt Springs Dam, Calif...... 259 Mokelumne River near Mokelumne Hill, Calif...... 260 Mokelumne River at Lancha Plana, Calif...... 261 Mokelumne River near Clements, Calif...... 262 Mokelumne River at Woodbrldge. Calif...... 263 Tiger Creek powerhouse conduit below Salt Springs Dam, Calif...... 264 Cold Creek near Mokelumne Peak, Calif...... 265 Bear River at Pardoe Camp, Callf...... 266 Middle Fork Mokeluwne River at West Point, Calif...... :.... 267 South Fork Mokelumne River near west Point, Calif...... 268 Woodbridge canal at Woodbrldge, Calif...... 269 Cosumnes River at Michigan Bar, Calif...... 270 Goose Lake Basin...... 271 Drew Creek near Lakevlew, oreg...... 271 Cottonwood Creek near Lakevlew, Oreg...... 272 Sacramento River Basin...... 273 Sacramento River main stem...... 273 Sacramento River at Keswlck. Calif...... 273 Sacramento River near Red Bluff, Calif...... 274 Sacramento River at Butte City, Calif...... 275 Sacramento River at Colusa, Calif...... 276 Sacramento River below Wllklns Slough, Calif...... 277 Sacramento River at Knights Landing, Calif...... 278 Sacramento River at Verona, Calif...... 279 Pit River Basin...... 280 Pit River near Canty", Calif...... 280 Pit River at Fall River Hills, Calif...... 281 Pit River at Big Bend, Calif...... 282 Pit River near Tdalpoau Calif...'...... 283 South Fork Pit River near Likely, Calif...... 284 Hat Creek near Hat Creek, Calif...... 285 McCloud River near McCloud, Calif...... *..,...... 286 McCloud River at Balrd, Calif...... 287 Clear Creek Basin...... 288 Clear Creek near Igo, Calif...... 288 Cottonwood Creek Basin...... 289 Cottonwood Creek near Cottonwood, Calif...... 289 Battle Creek Basin...... 290 Battle Creek near Cottonwood, Calif...... 290 Antelope Creek Basin...... 291 Antelope Creek near Red Bluff, Calif...... 291 Mill Creek Basin...... 292 Mill Creek near Los Mollnos, Calif...... 292 Thomas Creek Basin...... 293 Thomas Creek at Paskenta, Calif...... 293 Deer Creek Basin...... 294 Deer Creek near Vlna, Calif...... 294 Chlco Creek Basin...... 295 Chico Creek near Chico, Calif...... 295 Stony Greek Basin...... 296 Stony Creek near Hamilton City, Calif..»...... >...... 296 Butte Creek Basin...... 297 Butte Creek near Chlco, Calif...... 297 Feather River Basin...... ;...... 298 Lake Almanor near Prattvllle, Calif...... j...... 298 North Fork Feather River near Prattville, Calif...... : 299 CONTENTS VII
Saglng-statlon records Continued. Sacramento River Basin Continued. Feather River Basin Continued. Page North Fork Feather River at Big Bar, Calif...... 300 Feather River near Orovllle. Calif...... 301 Feather River at Nlcolaus, Calif...... 302 Butt Creek above Almanor-Butt Creek tunnel, near Prattvllle, Calif...... 303 ' Butt Creek below Almanor-Butt Creek tunnel, near Prattvllle, Calif...... 304 Indian Creek near Crescent Mills, Calif...... 305 Spanish Creek at Keddle, Calif...... 306 Bucks Creek' Reservoir near Bucks Ranch, Calif...... 307 Grizzly Creek near Storrle, Calif...... 308 West Branch Feather River near Yankee Hill, Calif...... 309 Concow,Creek near Yankee Hill, Calif...... 310 Spring Valley ditch near Yankee Hill, Calif...... 311 Middle Fork Feather River nearJJlio, Calif...... 312 Middle Fork Feather River b«Iow Sloat, Calif...... 313 . Middle Fork Feather River at Bldwell Bar, Calif...... 314 South Fork Feather River at Enterprise, Calif...... 315 Palermo Canal at Enterprise, Calif...... 318 Middle Fork Tuba Rlvtfr-at Milton, CUlf...... 317 mddle Fork Tuba River above Oregon Crack, Ofcllf...... 318 Yu&a River at Narrows Dam, Calif...... 319 Yuba River at Marysvllle, Calif...... 320 Milton-Bowman tunnel at outlet, Calif...... 321 Oregon Creek near North San Juan, Calif...... 322 North Fork Yuba River near Sierra City, Calif...... 328 North Fork Yuba River below Goodyears Bar, Calif...... 324 North Fork Yuba River at Colgate
Gaglng-statlon records Continued. Klamath River Basin Continued. ' Page Smaller reservoirs In Klamath River Basin, Oreg...... 386 Sprague River near Chlloquln, Oreg...... 387 Cascade Canal near Fish Lake, Oreg...... 388 "A" canal at Klamath Falls, Oreg...... 389 Keno Canal at Klamath Falls, Oreg...... 390 Lost River diversion canal near Olene, Oreg...... 391 Diversion from Klamath River to Lost River near Olene, Oreg...... 392 Fall Creek at Copco, Calif...... 393 Keene Creek Canal near Ashland, Oreg...... 394 Scott River near Fort Jones, Calif...... 395 Salmon River at Somesbar, Calif...... 396 Trinity River at Lewlston, Calif...... 397 Trinity River hear Hoopa, Calif...... 398 Smith River Basin...... 399 Smith River near Crescent City, Calif...... 399 Mlecellaneous discharge measurements...... 400 Index...... 407
ILLUSTRATIONS Page Figure 1. Qaging-statlon structures: A, Fish Creek near Duarte, Calif,; B, San Joaquln River below Kerckhoff powerhouse, Calif.; C, North Fork Cache Creek near Lower Lake, Calif...... 3 Figure 2. Gaglng-statlon structures: A, Middle Fork American River near Auburn, Calif.; B, Pit River near Canby, Calif...... 4 SURFACE HUSt 3JFPLY OF PACIFIC aLOFE BASINS IN CALIFORNIA, 1943
SCOPE OF WORK
nils volume is one of a serlss of 14 reports presenting results of tteasureraerts of stage and flow made-on streams, lakes, and reservoirs In the United States durlrg the water year ending September 30, 1943. The work was begun In 1888 In connection with special studies relating to Irrigation. Measurements of the flow of streams ancT of the stage and contents of lakes and reservoirs have been made at about 9,670 gaging stations * In the 48 States and also at many gaging stations In Alaska and Hawaii. In July 1943, 5,120 gaging stations, Including those In Hawaii, were being maintained by the Geological Survey and cooperating organizations. Miscellaneous discharge measurements were aa.de at many other points. In ttie execution of ttie work many State and private organizations have cooperated, either by furnishing data or by assisting In collecting data. Cooperation of ttie first kind is acknowledged In connection with ttie description of each .station affected*; in this report cooperation of the second Jcind Is acknowledged on page 14, .
DEFINITION OF TOT1S
The units In which stream-flow data are presented in this report and other terms used herein are defined as follows: "Second-feet" Is an abbreviation for "cubic feet per second." A second-foot Is the rate of discharge of a stream whose channel is 1 square foot In cross-sectional area, and whose average velocity Is 1 foot per second. "8eoond-feet per square- mile" Is the average number of cubic feet of water flowing per second f «m each squara mile of area drained, on the assumption that the runoff is dis tributed uniformly both as regards time and area. "Runoff in inches" Is the depth to which an area would be covered If all the water draining from it in a given period were uniformly distributed on Its surface. It Is used for comparing runoff with rainfall, which Is usually expressed In inches. An "acre-foot" Is the quantity of water required to cover an acre to the dept': of 1 foot and Is equivalent to 43,660 cubic'feet. The term Is commonly used In connection with storage for irrigation. "Second-foot-day" IB the volume of water represented by a flow of 1 second-fcxst for 24 hours. It Is equivalent to 86,400 cubic feet, 1.983471 acre-feet, or 646,317 gallons and represents a runoff of 0.0372 inch from 1 square mile. "Stage-discharge relation" is an abbreviation for the term "relation between gage height and discharge." "Control" Is a term used to designate a feature downstream from the gage that determines the stage-discharge relation at the gage. This feature may be a natural section, a reach of ttie channel, or an artificial structure. "Contents" Is a term applied to the volume of water In a reservoir, not inoluling water In bank storage unless so Indicated. 1 8 SURFACE V&TER SUPPLY, 1943, PART 11
EXPLANATION OF DATA
The base data collected at gaging stations consist of records of stage, measurements of discharge, and general Information used to supplement the records of stage and discharge measurements In determining the dally flow. The records of stage are obtained either from direct readings on a nonrecordlng gage or from a water-stage recorder that gives a con tinuous record of the fluctuations. Measurements of discharge are made-with a current meter by the general methods outlined In standard textbooks on the measurement of river discharge. Typical structures in use at gaging stations are shown in figvres 1 and 2. Rating tables giving the discharge for any stage are prepared from the discharge meas urements. The application of the daily mean gage height to these rating tables gives the dally mean discharge., from which the monthly and the yearly mean discharge are computed. If the stage-discharge relation is subject to change because of frequent or continual change In Hie physical features that form the control, the dally mean discharge is determined by the "shifting-control method," in viilch correction factors based on Individ ual discharge measurements and notes by engineers and observers are used In applying the gage heights to the rating tables. At tines the stage-discharge relation for a station may be temporarily changed by the presence of aquatic growth or debris on the control. For such times the daily mean discharge Is computed by what is essentially the "shifting- control" method, described above. At some gaging stations the stage-discharge relation is affected by backwater from reservoirs, tributary streams, or other sources, which necessitates the use of the "slope method," in Which the slope or fall In a reach of the stream Is a factor in the det«raina- tion of discharge. Information requisite for determining the slope or fa] 1 la obtained by means of an auxiliary gage set at some distance from the base gage. At sons stations the stage-discharge relation is affected by changing stage, and for them the rate of change of stage is used as a.factor in the determination of discharge. At most gaging stations In the northern part of the United States and ft some in the mountainous regions of other parts the stage-discharge relation is affected by ice during the winter, which makes it impossible to compute the discharge in the usurl manner. Dis charge for periods of ice effect Is computed on the basis of the gage-helfht record and occasional winter discharge measurements, consideration being given to th« available 1 re format ion on tataperature and precipitation, notes by gage observers and engineers, and comparable records of discharge for stations la the same or nearby basins. The days Included In the periods of lee effect and the days during the winter period on vftleh dis charge measurements were made are indicated In the table- by symbols referring to footnotes or are/given In a general note following the table. For most of the gaging stations on streams in the area covered by thl$ report the data presented comprise a description of the station, a table showing the dallf discharge of the stream, and a table of monthly and yearly discharge and runoff. Skeleton rating tables ace published for all stations except those at which the dally discharge for the greater part of the year was determlmd by the shifting-control method, tt * slope method, or other special methods. The description*of the station gives the type of gage, its latitude and longitude as determined from the best available maps, and information in regard to diversions that EXPLANATION OF DATA
A. FISH CREEK NEAR DUARTE, CALIF. Note broad-crested control used in southern California.
B. SAN JOAQUIN RIVER BELOW KERCKHOFF POWERHOUSE, CALIF.
C. NORTH FORK OF CACHE CREEK NEAR LOWER LAKE, CALIF.
FIGURE 1. GAGING-STATION STRUCTURES. SURFACE WATER SUPPLY, 1943, PART 11
A. MIDDLE FORK AMERICAN RIVER NEAR AUBURN, CALIF.
B. PIT RIVER NEAR CANBY, CALIF.
FIGURE 2. GAGING-STATION STRUCTURES. TIM! BASIS 5 decrease ttie flew at the gage, artificial regulation from pondage or.storage, and the accuracy of the records. Under "Average discharge" is given the average discharge for the number of years Indicated. It Is given only for stations for which there are 10 or more complete sears of record. Under "Extremes" are given the maximum'discharge and gage height} the mlnlmim discharge If there Is little or no regulation; the minimum dally die- charge if there is extensive regulation (also the minimum discharge If useful); and the minlfflum gage height (unless it is of no Importance). Unless otherwise qualified, the maximum discharge corresponds to the crest stage, obtained by use of a water-stage recorder or a nonrecordlng gage read at the time of the crest. Likewise the minimum dis charge represents the lowest stage, unless otherwise qualified. Selected peak discharges with the times of their occurrence are given below the table of monthly discharge for some stations. This supplementary Information Is generally omitted for stations having drain age areas of less than 10 square miles or more than 10,000 square miles or If t're peak discharges usually exceed the corresponding mean discharges for the day by less than 10 percent. For stations equipped with nonrecording gages, the table of dally discharge gives the discharge In second-feet corresponding to once-daily readings of the gage o- the mean of twice-dally-readings. For flashy floods the dally mean discharge is determined from gage-height graphs based on gage readings made once or twice daily or oftener, as stated in the station description. For stations equipped with water-stage recorders, except those on streame subject to sudden or rapid fluctuation, the table gives the discharge corre sponding to the dally mean gage, height. For stations subject to such fluctuation the daily mean gage height my not Indicate the true daily mean discharge, which must be ob tained by averaging the discharge for parts .of the day or by using the discharge inte grator, an Instrument for obtaining the dally mean discharge from a continuous gage-height graph and containing as an essential element a curve representing the stage-discharge relation at the station. In the table of monthly dlsetarge the column headed "Second-foot-days" gjves the sum for each month of the figures given In the table of dally discharge. The coluim headed "Maximum" gives Hie maximum dally discharge, not the momentary discharge when the water surface was at crest stage. Likewise, in the column headed "minlMim" the quantity given Is ttie minlmm daily discharge. The column headed "Mean" gives the average flow In cubic feet per second during the month. For most-gaging stations on lakes and reservoirs the data presented coaprise a descrip tion of the station and a monthly summary table of stage and contents. For som reservoirs a table showing dally contents is given. A skeleton table of capacity at glveri stages is usually given In the first report In which data for a station are published but is omitted from succeeding reports. TIME BASIS
At 2 a.m. on February 9, 1942, as an emergency measure, the Nation shifted f""om standard tiae to "war tlas," and clock time In the several zones of the country was moved ahead 1 hour, or to 3 a.m. Records of dally discharge prior to February 9, 194?-, have been computed on the basis of standard time. Records subsequent to that date tnve been computed on the basis of war time. To convert war time to standard time, subtnct 1 hour. 6 SURFACE WATER SUPPLY, 1943, PART 11
ACCURACY OF FIELD DATA AND COMPUTED RESULTS The accuracy of stream-flow data depends primarily on (1) the permanency of the stage- discharge relation or, If the control Is unstable, the frequency of discharge measure ments and (2) the accuracy of observations of stage, measurements of flow, and Interpre tation of records. The station description gives a statement In regard to the general accuracy of the records. "Excellent" Indicates that, In general, the error In the dally rp«»rds Is believed to be less than 5 percent; "good," less than 10 percent;'"fair," less than 15 per cent;- and "poor," probably more than 15 percent. The records of monthly ard yearly mean discharge and runoff are, In general, more accurate than the dally records. Yield at some stations as Indicated by monthly means may vary widely from natural yield, owing to diversion, consumption, regulation by storage, Increase or decrease In evapora tion due to artificial causes, or other factors. For such stations figures of "second- feet per square mile" and "runoff In Inches" are not published unless storage or diversion records are Included Indicating the extent of the regulation or diversion or unless satisfactory adjustments can be made for .changes In contents of reservoirs or for other changes Incident to use and control. Evaporation from a reservoir Is not Included In the adjustments for changes In reservoir contents, unless Its Inclusion Is Indicated. Figures of second-feet per square mile and runoff In Inches are also omitted If the drainage area Includes large noncontrltouting areas or If the average annual rainfall over the drainage area Is less than 20 Inches. Many gaging stations on streams In the Irrigated areas of the United Stetes are situ ated above most of the diversions from those streams, and therefore the discharge recorded does not show the water supply available for further development, as prior appropriations below the station must first be satisfied. The table of monthly discharge presents In summary the distribution of the flow past the station. The table of dally discharge affords opportunity for more detailed studies of the variation in flow. A"s further observations In each succeeding year may be expected to throw new light on data previously published, It should be borne in mine that such data are subject to revision in succeeding water-supply papers.
PUBLICATIONS
The results of stream-flow measurements are now published annually in 14- parts, each part covering an area whose boundaries coincide with natural drainage features as indicated below: Part 1. North Atlantic slope basins (St. John River to York River). 2. South Atlantic slope and eastern Gulf of Mexico basins (James River to Mississippi River). 3. Ohio River Basin. 4. St. Lawrence River Basin. 5. Hudson Bay and upper Mississippi River Basins. 6. Missouri River Basin. 7. Ifflwer Mississippi River Basin. 8. Western Gulf of Mexico basins. 9. Colorado River Basin. 10. The Great Basin. . PUBLICATIONS 7
Part 11. Pacific slope basins in California. 12. Pacific slope basins In Washington and upper Columbia River Basin. 13. Snake Rive,r Basin. 1.4. Pacific slope basins in Oregon and Ipwer Columbia River Basin. Water-supply papers and other publications of the Geological Survey containing data on the water resources of the United States may be obtained or consulted as explained below. 1. Copies may be purchased at nominal cost from the Superintendent of DoeimntB, Government Printing Office, Washington, D. C,, wno will, on application, furnish lists giving prices. 2. Sets of the reports may be consulted In the libraries of the principal cities in the United States. 3. Sets are available for consultation in the local offices of the water-ivsources branch of the Geological Survey as follows: East of the Mississippi River: Albany, N. Y., 528 Federal Building. Asheville, H. C., 220 P.ost Office Building. Atlanta, Ga., 3 North Rhodes Center NW. Augusta, Maine, Statehouse. Baton Rouge, La., 124 Geology Building, Louisiana State University. Boston, Mass., 939 Post Office Building. Charleston, W. Va., 408 Union Building. Charlottesvilie, Va., House G, Dawson Row, University of Virginia. Chattanooga, Tenn., 442 Post Office Building. College Park, Md., 105 Engineering Building, University of Maryland. Columbia, 8. C., 119 United States Courthouse. Columbus, Ohio, 404 Engineering Experiment station, Ohio State University. Harrlsburg, Pa., 490 Education Building. Hartford, Conn., BOS Fedeml Building. Indianapolis, Ind., 205 Underwriters Building. Jackson, Miss./ 208 Millsaps Building. Knoxvllle, Teflh., 337 Post Office Building. Louisville, Ky., 531 Federal Building. Madison, Wls., 666 State Office Building. Montgomery, Ala., 507 Post Office Building. Morgantown, W. Va., 309 Mineral Industries Building. New Philadelphia, Ohio, Musklngum Watershed Conservancy District Building. Ocala, Fla., 302 Post Office Building. Pittsburgh, Pa. 515 Plaza Building. Raleigh, N. C., 242 Education Building. St. Paul, Htnn., 1427 New Post Office Building. Trenton, N. J., 228 Federal Building. Urbana, 111., 14 Post Office Annex, Elm Street. Wllliamsburg, Ky., Kentucky Highway Building. West of,the Mississippi River: Albuquerque, N. Mex., 723 North Second Street. Austin, Tex., 302 West Fifteenth Street. Boise, Idaho, 429 Federal Building. Denver, colo., 310 Denham Building. Fort Smith, Ark., 6 Post Office Building. Helena. Mont., 408 Federal Building. Honolulu, Hawaii, 225 Federal Building. Idaho Falls, Idaho, 204 Federal Building. tchna City, Iowa, 508 Hydraulic Laboratory, University of Iowa. Lincoln, Nebr., 1404 Statehouse. Los Angeles, Calif., 429-F United States Post Office and Courthouse. Oklahoma City, Okla., 535 Capital Building. Portland, Oreg., 606 Post Office Building. Rolla, Mo., Missouri Geological Survey Building, illssourl School of Hlnea and Metallurgy. St. Louis, MO., 1002 New Federal Building. Salt Lake City, Utah, 303 Federal Building. San Francisco, Calif., 625 Market Street Bwlldlng. Santa Fe, N. Mex., £04 United States courthouse. Tacotaa, Wash., 207 Federal Building. Topeka, Kans., 305 Federal Building. ' Tucson, Aria., 210 Post Office Building. A list of the. Geological Survey publications may be obtained by applying to the Director, Geological Survey/ Washington, D. C. g SURFACE V&TER SUPPLY, 1943, PART 11
Early records of the flow of streans in the Bblted States are publisMd la the reports listed below:
Streaa-flo* data for the years 1884-1901, In reports of the aeologlea'' {A Annual Report; B = Bulletin; V a Wat»r-S«pply Psp»r) Report Character of data * ** x 10th A, pt. S Descriptive infcrttatlon only.
B 1 «* ! 189^94. 16th A, pt. e Descriptive Information only. B 140 monthly discharge (also nany data covering earlier years). 189 «, 18th A, pt. 4 Descriptions, measurements, ratings, and monthly discharge 189- -96. (also similar data for soaa earlier years). east of the Mississippi River, cuid Missouri River and tributaries above Kansas River. vest of the Mississippi River, except Missouri River and tributaries above Kansas River. 19th A, pt. 4 Descriptions, measurements, ratings, and nonthly discharge 189''. (also acme long-time records). W on the Mississippi River, and Missouri River and tributaries. W oo 188", the Mississippi Hlver, except Missouri River and. tributaries. iftO** 180^.
* 78...... 1901.
Papers on surface water supply containing records from 1899 to date, grouped By years and drainage basins, are listed by mmber on page 9. Otoe data for any particular station will, in general, be found in the reports covering the years during wblch the station was maintained. For example, the data for 1910 to 1920 for any station In the area covered by part 3 are published in Water-supply Papers 283, 303, 3T1*- 388, 408, 438, *68, 473, and 503, which contain records for the Ohio River Basin for those years. The records at most of the stations discussed la these reports extent over a aeries of years. Miscellaneous measurements at many points other than regular gaflag stations have frefta made each year and are published under "Miscellaneous discharge MM mireaefits* at the end of each report, the streams and points of measurement listed appear!ag in the same relative order as the streams and gaging stations la the body of the retort, An Index of the records obtained prior to 1904 Ms been pufellsued In Water-8«pply Pr«w US. Bach of the reports on surface water supply for the year 1939, issued as Water-Supply Papers 871 to 884 (see table on p. 9), contains a sumary of yearly discharge at gaging stations in the area covered by that report. Gaging stations at which 10 or more com plete years of record have been collected are represented. These summaries are available as separate reprints. Hunbera of water-supply papera containing results of stream Beaswrementi, 1899-1043 (For basins included aee pp. 6-7) o" 3 S 6 39 b36, 36 36 36 36 036, 37 37 37 99, Of 47, b48 48 48, 149 49 49 49, JSO 50 50 II 51 6i, »5 65, 75 «, 75 66, 75 icae, 68, 75 66, 75 k6S, 66, 76 66, 75 66,75 6«, 76 §* 82 , 83 83 »82, 83 K85, 85 84 k83, 84 84 6* M24, plSS, %126 II SIT ISO. rial kl28, 131 Wo, il3* 0165, 10.66,
From tine to time reports have been published that are compilations of records for various areas, usually a single state or drainage basin. These reports contain records- previously published (some of which have been revised), as well as some records not con tained In the annual series of water-supply papers. The following table gives the num bers and titles of these reports, arranged In alphabetic order by States and drainage basins.
Reports containing compilations of discharge by States and drainage trains Water-supply Paper Period State or drainage basin and title
STATE 107 1805-1903 Alabama, Water powers of, with an appendix on stream n-easurements In Mississippi. 808 1887-1912 California, Water resources of, part 1, Stream measurements In Sacra mento River Basin. 299 1678-1918 California, Water resources of, part 2, Stream measurements In San Joaquin River Baa In. SOO 1891*1912 California, Water resources of, part 3, Stream measurements In the Great Basin and Pacific Coast river basins. 477 1890-1918 California, southern, Surface water supply of Pacific slope of. 597-B 1895-1927 California, Surface water supply of Sacramento River Ftsin. 6S6-D 1896-1927 California, Surface water supply of San Joaquin River Basin. 696-B 1894-1987 California, southern. Surface water supply of Pacific slope basins in. 637-A 1896-1987 California, Surface water supply of minor San Francisco Bay, northern Pacific, and Great basins In. 74 1884-1900 Colorado, Water resources of. 197 1896-1906 Georgia, Water resources 3f. 416 1846-1916 Massachusetts, Surface waters of. 230 1894-1906 Nebraska, Surface water supply of. 370 1878-1910 Oregon, Surface water supply of. 860 1898-1937 Texas, Suonary of records of surface waters of. 424 1676-1916 Vermont, Surface waters of. 498 1878-1919 Washington, Summary of hydrometrlc data In. 870 1919-36 Washington, Summary of records of surface waters of. 166 1896-1906 Wisconsin, northern. Water powers of. 469 1894-1921 Wyoming, Surface wa.tera of, and their utilization. ORAIHAQE BASIN
395 1388-1914 Colorado River (Arlz., Colo. , H. Max., 0tbh, Wyo.) and1 Its utilization. 913 1891-1938 Colorado River Basin (Ariz., Calif., Colo., IT tan, «yo. ) , Surface waters at base stations in. _, 617 1897-19E7 Colorado River, upper (Colo., Utah}, and its utilization. 916 1808-1938 Columbia River Basin, upper (Mont., Idaho), Surface wifcers of. 517 1889-1920 Great Salt Lake Basin, Water powers of. 618 1894-1926 Green River (Colo., Utah, Wyo.) and its utilization. 198 1890-1906 Kennebec River Basin (Maine), Water resources of. 491 1398-1917 Milk River. See St. Mary and Milk Rivers. 917 1B81-1938 Missouri and 3TT Mary River Basins (Mont.}, Surface waters of. 536 1895-1920 Hew Kanawha River Basin (H. C., Va., W. Va.}, Surface water supply of. 279 1904-9 Penobscot River Basin (Maine), Water resources of. 192 1895-1906 Potomac River Basin (D. C., Nd. , W. Va.) 358 1898-1913 Rio Grands Basin (Colo., H. Hex., Tex.}, Water resources of, 1888-1913. 491 1898-1917 St. Mary and Milk Rivers (Mont., Canada), Water supply of. 917 1881-193S St. Mary River Basin. See Missouri and St. Mary River Basins. 109 1S90-1904 Susquehanna River Basin (Pa. , Jld.), Hydrography of.
cRecords of discharge have been published also In State reports. Some of' these are not contained In the publications of the Geological Survey or are revisions of records . previously published In Its water-supply papers. The following table contains.a list of these reports. ' \ . State reports containing compilations «* rseords of discharge State Period Report Issued by Alabama..... 1895-1916 Geological Survey of Alabama. Arkansas .... 1867-1028 Arkansas' Geological Survey. Colorado. ... 1881-1936 Water resources of Colorado, Appendix 2, State Planning Commission, Data on stream-gaging stations of Water Conservation Board, Colorado. 1 State "engineer. Do...... 1881-1938 Water resources of Colorado, Appendix 3, Do. vols. 1 and 2, Stream-flow data of Colorado* 1900-1927 Bull. 44, Water resources of Connecticut. State Geological and Katural Connecticut. History Sirvey. 1912-3S Connecticut State Water Commlss'lon. Georgia. .... 1896-1906 Geological Survey of Georgia. Do...... 1907-19 Bull. 38, Water powers of Georgia...... Do. Illinois.... 1908-11 ' Elvers and Lakes Ooanlsslon. Do...... 1900-1934 Stream-flow data of Illinois...... Division of Waterways. 1 Contains records of yearly discharge only. 2 Contains records of monthly discharge- in second-feet per square mile. 11- PUBLICATIONS
State report* containing compilations of records of discharge 'Ooutinttad State Period Report Issued 1-- Indiana..... 1983-87 fob. 78, Surfaee water supply of Dapartment of Cox-nervation. Indiana. 1987-80 Pub. 112, Surface water supply of Do. Indiana* Iowa../:.... 1878-1988 Iowa State Planning Board. 1678-1940 Water-supply Bull, 1, Summaries of Iowa Geological E^rvey. yearly and flood flow relating to Iowa streams. 1941-42 Water-Supply Bull. S, Surfaee water Do. resources of Iowa. 1895-1919 Kansas Water Commission. Do. Do...... 1984-28 Report of Division of Water Resources... Kansas State Boar-1 of Agri- culture. 1928-35 Do. 1935-39 Do. Do...... 1939-41 Do. Kentucky.... 1910-80 Kentucky Geological Surrey. Louisiana. . . 1908-88 Oeol. Boll. 16, Surface water supply of Department Of Corwervatlon. Loulelana. Maine...... 1687-1980 Maine Water Power Commleslon. Maryland.... 1989-87 now data and draft storage curves for State Planning Ocrolsslon and major ctreams In Maryland. Water aesourcei Commission. Mlnneeota. . . 1909-12 Water-resourcee Investigation of Minne State Drainage C remission. sota. Missouri.... 1S87-198C Vol. 80, Ed series. Water resources of Missouri Geological Surrey Missouri. and Water Resources. Da...... 1987-89 Vol. 26, 8d. series, Surfaee waters of Do. Missouri. 1889-1911 Office of the Stste engineer. 1881-1938 Speelal Rept. 10, vole. 1-4, Water re-' Montana Agrlsultvral Experi sources of Montana. ment Station. Hebraska.... 1894-1914 Bureau of Water F*wer, Irri gation, and Drainage. 1914-88 Do. Hew Jersey.. 1891-1988 Bull. S3, Surfaee water supply of Mew Department of Corservatlon Jersey. and Development. 1988-84 Special Rept. 5, Surfaee water supply of State Water toiler Commis Hew Jersey. sion. low Mexico. . 1888-1986 Office of the Stste Engineer. Berth Caro 1889-1988 Ball. 84, Discharge records of North Department of Coreervatlon lina. Carolina streams.* and Development. 1889-1986 Bul-l. 89, Discharge reeorde ef North Do. Carolina stream*.* Worth Dakota 1919-81 Report to Governor of North Dakota on State chief englieer. flood control. 1888-1986 State Planning Bfl'rd. 1896-1981 Engineering Experiment Sta tion, Ohio 3 tat r University. 1908-89 Boll. 800, Compilation of stream-flow Department of Agriculture, records of Ohio. Division of Conservation and natural Resources. 1898-1989 Bull. Ill, Ohio stream-drainage areas and Engineering Experiment Sta flow-duration tables. tion, -Ohio Statt University 1878-1914 Bull. 4, Water resources ef the State of Office of the State Engineer. Oregon. 1914-84 Boll. 7, Water resources of the State ef Do. Oregon. 1924-80 Boll. 8, Water resources of 'the State of Do. Oregon. 1930-36 Boll. 9, Water resources ef the State ef Do. Oregon. Pennsylvania 1890-1911 Report of the Water Supply Commission of Water Supply Comn^sslon of Penney Ivan la . Pennsylvania. 1986-38 Stream-flow records of Pennsylvania..... Department of Forests and Waters. Rhode Island 1929-41 Department of Pub* to Work*. Tennessee..* 1874-1984 Bull. 34, Water resources of Tennessee. Department of Education. 198O-30 Bull. 40, Surfaee Water* ef Tennessee 3 , Do. 1889-1906 8th biennial report, State engineer.. .. Office of the State Engineer. 7th biennial report, State engineer.. .. Do. 1911-1916 lotto biennial report. State engineer. .. Do. Virginia.... 1698-1987 Boll. 81, Water resources ef Virginia . . Conservation Oomm'«elon. Washington. . 1878-1933 Bull. 8, Monthly and yearly summaries of Department of Conservation bydrometrlc data, and Development. Wisconsin... 1866-1914 lit report of Railroad Commission of Railroad Commlssl-m of Wis Wisconsin to Legislature on water consin. powers. Do.. ..* ». 1914-23 2d report of Railroad Commission of Wis Do. consin to Legislature on water power*. $ Contains rseords of monthly discharge in second-feet per squars mile. 3 Contains records of weekly discharge. 4 Contain* records ef maximum and minimum dally, weekly, and monthly discharge and ymrly mean discharge. Mote.-. In addition to the records contained in the report* listed above, the following States have lesued annual or biennial reporte in which are contained records of discharge! Cr Ifornla, Colorado, Connecticut, Idaho, Indiana, Maine, Missouri, Montana, Hebraska, Nevada,.Hew Mexico, How York (also How Tork City Board of Water Supply and city of Rochester), North Dakotr. Oregon, Pennsylvania, Rhode Island, Washington, and Wyoming. 12 SURFACE H&.TER. SOPPLT, 1943, RffiT 11 The reports Hated in the foregoing tables contain the customary records of discharge collected during the systematic operation of gaging stations. Detailed Information on the stage and. discharge of many streams during major floods has been Included lit special reports on these floods pnbllahed by the Geological Survey. the more recent of these reports also contain other pertinent hydrologle Information and analyses and compilations of data relating to earlier noteworthy floods. The following list gives the numbers and title? of these, reports:
Water-supply Title Paper 88 The Passalc flood of 1908. 92 The Passalc flood of 1903. 96 Destructive floods In the United States in 1903. 147 Destructive floods In the United States In 1904. 162 Destructive floods In the United States In 1905. 334 The Ohio Valley flood of March-April 1913. 426 Southern California floods of January 1916. 487 The Arkansas River flood of June 3-5, 1921. ' 488 The floods in central Texas In September 1921. 520-Q Some floods In the Rocky Mountain region. 636-c The New England flood of November 1927. 771 Floods In the United States, magnitude and frequency. 773-E The New York State flood of July 1935. 796-B Flood on Republican and Kansas Rivers, May and June 1935. 796-C Flood in La Canada Valley, Calif., January 1, 1934. 796-0 Hajor Texas floods of 1935. 796 The floods of March 1936, part 1, New England Rivers. 799 The floods of March 1936, part 2, Hudson River to Susquehanra River region. 800 The floods of March 1936, part 3, Potomac, James, and upper Ohio Rivers. 816 Hajor Texas floods of 1936. 836-A Stages and flood discharges of the Connecticut River at Hartford, Conn. 838 Floods of Ohio and Mississippi Rivers, January-February 1937. 842 Floods In Canadian and Pecos River Basins of New Mexico, Hay and June 1937. 843 Floods of Deceniber 1937 In northern California. 844 Floods of March 1938 In southern California. 847 Maximum discharges at stream-measurement stations through Septsmber 1938. 867 ' Hurricane floods of September 1938. 869 * Flood of August 1935 In Musklngum River Basin, Ohio. 914 Texas floods of 1938 and 1939.
RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAJf THE GEOLOGICAL
The following table lists gaging stations for the area covered Jby this report at which records of dally discharge were collected during the water year October 19'^ to Septezu- ber 1943 by agencies other than the Geological Survey. "She records for th-sse station* are not contained in publications of the Geological Survey. Not listed are gating stations on many canals for-which records were collected in'connection with the operation of irriga tion projects.
Records of dlsehargs collected by agencies other than the Cleologleal Strroy 3tre«n Location Jeriod Collected Uy
northeast of Orange, Calif. tror Dletrlct. 1929 43 Control Dletrtot. Do Oallf. Azusa Duarte tunnel diver- Mouth of San Oabrlel Canyon, near Azuaa, 1918-43 sloa. Calif. near Orange, calif. taratf Dlstrlet. Beaver Creek...... £K* eec. 3E, *. 38 3. , B. 4 S. , below H94S-43 Qt*e0p State engineer. Willow Creek, Oreg. 0«Uf. Oonftrol District. Bvl-QW Big Itvt taBSkgft dttB 1 * nwfcs* S&tilfttk'ftj 19S2-43 So,,
Angeles, Sal If . ' t teoords for some earlier years contained In w«t«*-B«pply papers of the Oeolog' oal Survey. RECORDS OF. DISCHARGE COLLECTED BI AGENCIES OTHER THAN THE OEOLOOICAL SURtfOT 13
Records of discharge collected 117 agencies other than the Geological Survey Continued
Stream Location Period Collected by Calleguas Creek...... SJ*i, Oallf...... 1934-42 ?entura CovWfcy Vatar Sur vey. 1934-43 Do. % Seven.!* Street, near Long Beach, Calif.. 1942-43 Loe Angeled County Flood Control n.atrict. Clear Lake Baservolr * Sac. 8, I. 47 I., B. BE., tn CBllloitttw', $1919.43 Bureau of r-elamatlon. (eOsratton and die charge). near Langell Valley, Orag. 1928-43 Los Angeler County Flood Control r* strict ana Corps of Engineers, V. S. AMT. Meroed Avenue, near Baldwin Park, Calif. 1941-43 Los Angeler County Flood Control rtatrlet. 1940-43 Do. 1930-45 Do. 1930-43 Co. Do...... Below gatcnjlaaa debrla dan, near 1940.43 Dei Paaadena, Calif. Fuller too relief ohanofll.. Brighton Way wast of Magnolia Avenue, 1941-43 Orange County Flood Con Puller tori, Calif. trol District. Oarber Reservoir (eleva 8«o. 12, T. 39 S., B. IS 8», near 1926-43 Bureau of B'»la»i* -a. tion and disaharge )..... Loreiia, or*g. 3* Canal...... Intake, near southeast corner of nee. *', 1923-43 T. 41 S., R. 11 «., Oreg. La Vata Avenue storm drain La Vata Avenue, east of Santiago tteaak, 1936-43 Orange County Flood Con southeast of Orange, Calif. trol Slat riot. Devonshire Avenue, near Chatswortn, 1939-4Z IDS Angslafl County ?lood Calif. Control, Ilstrlot. Little Santa Anita Creak. . 270 faat below Sierra Hadre Dam at 1989-43 So. Sierra Hadre, Calif. Do...... Noodlawn Avenue., near Sierra Madre, 1938-48 Bo. Calif. $ mile below Live Oak Da»,near La Verne, 1928-43 DO. Calif. Marlposa Street, near Burbank, Calif..-.. 19S8-43 Le» Angelas ViitoA Coatrol Olatriot and Cwpe of Kngineero, U. S. Army. Stone bridge below diversion dam, near 1929-43 Bureau of H->ola»atlon. corner of sees. 1, 6, 17, and IB, T. 41 a>, R. 11 B., near Merrill, Orag.. Above confluence with'Sawpit Creak, near 1927-43. Loa Angeles County Flood Monrovia, Calif. Control District. Monrovia etoro drain...... Pack Jload, Monrovia, Calif...... 1932-43 £o. Montebello storm drain.... Mines Avenue, Montebello, Calif ...... 1932-43 Do. Parthenla Street, near Van Buys, Calif.. 1928-43 Do. 1943 Corp a of anineers, V. A. Army. Below Puddlagatone Das, near San Oimas, 1937-43 Los Angeles County Flood Calif, Control E* strict. Lower Azuaa Road, 1& miles north of BI 1932-43 DO. Monte, Calif. Olendon Nay, near San Oabrlel, Calif.... 1908-43 Do. Mouth of Canyon, near Claramont, Calif.. 1931-43 00. Barcrow Road at Culver Boad, southwest 1941-43 Orange Oonm'nr Flood Control of Irvlne, Calif. District. San Franclaqulto Creek. . . Palo Alto, Calif...... 1943 Corps of Btorlaeers, D. S. Army. Foothill Boulevard, near Axuaa, Calif... 1932-43 Los Angeles County Flood Control D'ltrict. Valley Boulevard, near BI Monte, Calif.. 1837-43 Do. Florence Street, near Santa Pe Spring*, 1934-43 Do. Calif. Santa ABB. Slvqr ...... Eiveralde-Oi garnii county lino, near 4942-43 Orange Countv Water Dis Prado, QkXm, trict. Xorte Brldga.^Snortheast of Olive, Calif. 1934-43 Orange Coun^T Flood Con trol District. Jefferson StxVet Bridge, northeast of 1934-43 Do. Olive, Caltf. Foothill Bou^ifard, near Arcadia, Calif. 1938-43 Los Angeles County Flood Control Ilstrict. Below Sawplt « », near Monrovia, Calif.. 1941-43 So. Charnock Road|, Albrlght City, Calif..... 1938-43 Do. Sycamore upper atom drain Above Sol way -^fcreet, alendale, Calif.... 1927-43 Do. Sycamore lower storm drain 1927-43 Do. fhOBjpaon Creen spreading Thompson CreofcllBB near Claraiuont, Calif. 1940-43 Do. ground Intake. Tujunga Wash (eaat and Magnolia Boulevard, Sorth Hollywood, 1930-43 Do. west channels). Calif. tujunga Wash (central 1930-43 Do. channel). 193S-43 Loa Angelee County Flotod 5ontrol Wi-trlot and Corpt of Bbgineerc- U.S. Arm-. Villa Park storm drain. . . . Center Drive at Lincoln dtraat, near 1936-43 Orange Counv.T Flood Con Villa Park, Calif. trol Diet; ct. Walnut Avenue atom drain. Walnut Avenue at Pvospeet Avenue, east 1928-43 1 Do. of Orange, Caltf j Oovina Boulevard, at Baldwin Park, 1926-43 tos Angeles County Flood Calif. Control Eistrict, Weat Anahelm atom drain*. Manchester Boulevard, west of 1936-43 Orange County Flood Con Anaheln, Calif, trol District. Weat Fork San Oabrlel i aile below San Gabriel dam 2, 1934-43 Do. River. Calif.
t Montiily die charge 1919-24; dally discharge 1924-43.. tt Records for January 1919 to Hovambar 1942 contained in water-supply papers of OeolcKlcal Survey. 14 SURFACE WATER SUPPLY, 1943, PART 11
COOPERATION
in California the work was done under cooperative agreements with the strte Department 'of Public Works, Frank W. Clark, director until January 1943 and C. H. Pur-jell there after, and Edward Hyatt, State engineer; the East Bay Municipal Utility District; Santa Clara Valley Water Conservation District; San Bernardlno, Riverside, Orange, Los Angeles, Venture, and Santa Barbara Counties; and the cities of San Diego, Santa Barbara, Santa Cruz, and Lodl. In Oregon the work was done under cooperative agreement with the State of Oregon, Chas. E. Strlcklln, State engineer.
Financial assistance was furnished by the Corps of Engineers, U. S. Army, for the opera*- tlon of 41 gaging stations and by the Bureau of Reclamation of the United Spates Depart ment of the Interior for the maintenance of 4 gaging stations. The entire expense of the Investigation of stream flow In the Tuolumne River Basin made for the Hetch Hetchy project and of the flow of Alameda Creek near Miles was borne by the city and county of San Francisco. <
Assistance In collecting records was also rendered by the following organizations? In California, by The California Oregon Power Co., the National Park Service of the United States Department of the Interior, Southern California Edison Co., Ltd., Pa-rifle Gas & Electric Co., city of Sacramento, Emma Rose & Hobart Estate Co., and Merced, Woodbrldge, Thermallto, and Table Mountain Irrigation Districts; In Oregon, by The California Oregon Power Co.
DIVISION OF WORK
The stream-gaging work was conducted by the water-resources branch of tl« Geological Survey, oienn L. Parker, chief hydraulic engineer, Carl G. Paulsen, assistant chief hydraulic engineer, and Rudolph 0. Kasel, chief of the division of surface waters. The data for the gaging stations were collected and prepared for publication urder supervision of district engineers as follows: In California (except for Fall Creek an<" KLamath River near Copco), H. D. Mcaiashan; In Oregon and for Fall Creek and JClamatti Rlvrr near Copco, Calif., a. H. Canfleld. The work In Oregon was done In collaboration with Charles E. Strlcklin, State engineer. The records were reviewed and the manuscript prepared for publication unler the direc tion of B. J. Peterson, hydraulic engineer In charge, and p. L. Kllllken, rnslstant , engineer, section of reports. RECORDS
TIA JUANA RIVER BASIN
Cottonwood Creek at Jjorena Dam, Calif.
Location.- Lat. 32°41'00", long. 116°32'55", In SWi sec. 14, T. 17 8., R. 4 E., at H8re'na Dam, If miles upstream trora Hauser Creek. Altitude of top of spillway gates, 3,045 feet. Drainage area.- 120 square miles. Records available.- January 1916, October 1936 to September 1948. Remarks.- Records of discharge represent flow into Morena Reservoir (capacity, 61,178 acre-feet), computed on basis of records of storage, release, leakage, spill, evapora tion, and rainfall. Cooperation.- Records furnished by city of San Diego.
Monthly discharge, water year October 1942 to September 1943 Mean Runoff Honth (second-feet) (acre -feet) 1.48 91 8.01 180' 7.48 460 9.45 6,320 8«.5 3,470 SI. 6 1,800 60.8 3,700 68.1 3,100 0 0 6.67 337 5.46 936 1.77 109 2.76 164 Water year 1942-43...... 18.1 13.090
Cottonwood Creek near Dulzura, Calif.
Location.- Lat. 32°40'45", long. 116 040'20", In NWi sec. 22, T. 17 S., R. 3 E., at Barrett Dam, 1 mile downstream from Pine valley Creek and 17 miles northeast of Dulzura. Altitude of top of flash gates, 1,615 feet; that of spillway lip, 1,607 feet Drainage area.- 250 square miles. Records available.- January 1906 to December 1915, October 1936 to September !&'?. Remarks.- Plow regulated by Morena Reservoir, 9 miles upstream. Records of discharge represent flow Into ^arreft'Reservoir (capacity, 42,796 acre-feet), computed on basis of records of storage, release, leakage, spill, evaporation, and rainfall. Cooperation.- Records furnished by city of San Diego.
Monthly dlacharge, water year October 1948 to September 1943 Month Mean Runoff (seoond-feet) (acre-feet)
S.81 6,370 M . OA A.
Hay...... IU.A
0 0 Mater year 1942-43...... 1S.S 14JS80
1im» ba»lai Pacific war tlae. To oenrert 'war tlae to stand- ard £! », subtract 1 hour. 16 TIA JUANA RIVEH BfiBIH
Cottonwood Creek above Tecate Creek, near Dulzuua, Gallf.
Location.- Water-stage recorder, lat. 32°34'I10", long, 116°45'40% in aex 27, T. 188. R. S E., half a mile upstream from confluence vfltti Tecate Creek ana M slles south of Dulzura. Drainage area.- 316 -square mllas. Records available.- October 1936 to September 1943. Extremes..- Maximum discharge during year, 485 second-feet Jan. 27 (gags height, 4.80 feet; no flow during several monlSis. 1936-43: Maximum discharge, 2,780 second-feet Tsb, 7, 1937 (gage height, 9.6S feet), from rating curve extended above 550 second-feet on basis of v^loclty-maaa depth and area -computations; no flow during part of each year. HBmarfcB.- Tteoords good except t&ose Tor Jan. 16-24, which are poor. FOor" regulated by Barrett and Morena Beswrolrs, 10 and 18 miles, respectively, above station. Water diverted outside drainage basin by Dulzura conduit (see p. 10 ).
Discharge. IB second-feet, water year Ootw>er XWBf to September 19*3 Day Oct. Jtov, Dec. Jan. Feb. Mar, *!« . May June July Aug. Sept. 1 0 0.1 9 6.6 6.6 6 6.5 1.5 2 0 .1 S 6.6 6.6 S 7 1.2 3 0 .1 6.5 7 6 6.6 6.6 3.1 4 0 .1 6 180 6 «.6 6.5 ].l 5 0 .1 5.6 164 4.8 11 6 3.1 6 0 .1 4.8 76 29 16 6 J..1 7 0 .1 4.0 40 60 ie 6 .9 8 0 .1 6.5 86 99 20 6 ,7 9 0 .1 7.6 28 66 22 6 .6 10 0 .1 5.6 23 48 21 5.5 .3 11 0 .3 4.6 23 64 17 6 .2 12 0 .3 4.0 SB 89 14 6.5 .2 13 0 .4 3.6 21 24 15 6.5 .3 14 o .3 3.4 18 Si 11 6 .3 15 0 .4 3.6 17 20 9.5 6.5 .3 16 0 ,4 3.8 16 19 10 4.8 .4 17 0 .6 3.8 14 18 10 4.3 .4 16 0 S'6 3.6 19 16 9.6 4.0 .4 19 0 *'! 3.6 19 15 9.6 4.3 .4 20 0 g.6 3.6 16 14 10 3.4 .3 21 0 g.6 4.e 13 14 9 3,4 .2 22 0 si. 8 6 16 12 8 2,e .1 23 0 $46 31 18 12 8 2.8 .1 24 0 g66 16 13 U 8 2.6 f 25 1.3 14 XX 11 9.6 7.6 2.8 f 26 .5 7.6 9 10 9.& 7.6 3.4 f 27 .3 806 e 9 9 7 1.9 C 28 .3 46 7.6 9 8.6 6.6 1.6 c 29 .2 80 18 7.5 6,6 1.4 c * 30 ,Z 13 - 11 7 $.5 1.3 c 31 .1 10 ~ 8.6 - 6.5 ~ c Second- Runoff in Month foot-days tfrwUB'TB Minim Mean acre-feet October 0 0 0 0 0 November...... 0 0 0 0 0 December...... 2.9 1.3 0 08 5.8 Calendar year 1948 ...... 4,076.7 887 0 » 11.8 8,090 Jam) ary...... 466.4 206 14.1 866 Febrvary...... 191.9 31 6.85 381 March...... 890.6 180 &6.5 28.7 1,770 Apri 1...... 667. 8 60 4.8 18,9 1JL90 May 329.6 22 5 10.5 646 June . . 136.3 7 1,3 4.51 268 July...... 12.0 1.3 0 .42 86 Aueu »t...... 0 0 0 " 0 0 Septesber...... 0 0 0 0 0 Water year 1948-43 ...... 8,563. 6 806 0 7.02 5,090 Feak discharge.- Jan. 84 (8 a.m.) 234 s»e.-ft,; Jan. 27 (12 a.) 496 sec, -ft.; . 4 (6 p.m.) 463 ae'o.'-n. Computed from graph based on gage readings. § Ime basis; Pacific war time. To convsrt war time to standard tl«w, subtract 1 hour.
\ TIA JUANA RIVER BASIN 17
Tia Juana River'hear Dulzura, Calif.
Location.- Water-stage recorder, lat. 32°33'50", long. 116°46'2S", in sec. 33, T. 18 S. R. 2 E., half a mile downstream from confluence of Cottonwood and Tecats C^eks and s| miles south of Dulzura. Altitude of gage, about 550 feet (from topographic map). Drainage area.- 478 square miles, of which 62 square miles is in Mexico. Records available.- October 1936 to September 1943. 'Extremes.- Maximum discharge during year,' 1,280 second-feet Jan. 27 (gage height, 3.87 fs*t); minimum daily, 0.1 second-foot on many days. 1936-43: Maximum discharge, 4,700 second-feet Feb. 7, 1937 (gage height, 8.50 feet, present datum), from rating curve extended above 300 second-feet on basis of velocity-mean depth and area studies; no flow during part of each year except 1943, Remarks.- Records good. Flow regulated by Morena and Barrett Reservoirs on Cittonwood
Discharge, in second-feet, water year October 1942 to Septenber 1943 Daj Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept.
1 0.1 0.2 0.1 1.1 26 7.5 15 S 7 1.5 0.1 0.1 2 .1 .2 .2 1.2 23 7 12 3 7.5 1.3 .1 .1 3 .!> .2 .2 1.2 20 8 12 S 7 2.2 .1 .1 4 .1 ,2 .2 1.2 19 324 11 9 7 2,4 .1 .1 5 .1 .2 .8 1.3 16 255 13 14 6.5 2 2 .1 .1 6 .1 .2 .2 1.5 14 114 74 18 5.5 1.8 .1 .1 7 .1 .2 .2 1.3 13 78 127 22 6 1.5 .1 .1 8 ,1 .2 .2 1.5 16 57 83 25 5.5 1.8 .1 .1 9 .1 .2 .2 1.5 32 37 105 29 5.5 . 1.1 .1 .1 10 .1 .2 .2 1.5 19 34 103 29 e.s .9 .1 .1 11 .1 .1 .2 1.8 13 52 59 23 5 .6 .1 .1 12 .2 .1 .1 1.5 11 41 64 19 5 .6 .1 .1 13 29 41 16 4.5 .6 .1 .1 14 .1 .1 .1 2.0 7 29 39 13 4.0 .4 .1 .1 15 .1 .2 .1 2.2 3 30 34 12 4.5 .4 .1 - .1 16 .1 .2 .1 2.2 7.6 27 34 11 4.5 .3 .1 .1 17 .1 .2 .1 2.4 7 25 30 12 3.6 .3 .1 .1 18 ,1 .2 .2 2.2 7.5 43 30 11 4.0 ,3 .1 .1 19 .1 .2 .2 2.2 7 41 25 10 4.0 .3 .1 .1 20 .1 .2 .1 2.4 7 _ 29 25 9 4.0 .2 .1 .1 21 .1 .2 .1 3.1 11 25 19 8 4.0 .2 .1 .1 22 .1 .2 .1 5.6 15 37 19 9 4.0 .2 .1 .1 23 ,1 .2 .1 148 64 41 13 3 4.0 .2 .1 , .1 24 .2 .2 .2 178 26 , 27 15 8 3.4 .1 .1 .1 25 .S .2 1.0 64 18 23 14 7.5 * 3.5 .1 .1 .1 26 .2 .2 .8 43 15 20 14 9 3.1 .1 .1 .1 27 .2 .1 .8 633 11 20 14 3 2.7 .1 .1 .1 28 .2 .1 .9 132 9 19 11 7.5 1.8 .1 .1 .1 29 .2 .1'.1 .9 57 20 10 3 1.5 .1 .1 .1 30 .2 1.0 52 20 11 7 1.5 .1 .1 .1 31 .2 1.1 39 IB 7 .1 .1 Second- Runoff ID Month fcot-days MaxiBUB MiniBUB Mean acre-feet
Goto ber 4.0 0.2 0.1 0.13 7.9 Novc 6.2 .2 .1 .17 10 Decs her...... 10.2 1.1 .1 .S* 20 Calendar year 1942 ...... 6,341.3 368 0 17.4 12,570 oanu &ry 1,388.6 633 1.1 44.8 2,760 Febr 449.5 64 7 16.1 892 Marc 1,637.5 324 7 49.6 3,060 Apri 1...... 1,081 127 10 36.0 .2,140 May. 393.0 29 7 12.7 730 June 136.7 7.5 1.5 4. 66 371 July 22.0 2.4 .1 .71 44 Augu 3.1 .1 .1 .10 6.1 September...... 3.0 .1 .1 .10 6.0 Water year 1942-43 ...... 6,033.8 633 .1 13. S 9,980 Peak discharge.- Jan. 23 {6r30 B.m. 5 397 aec.-ft.? Jan. 27 (a a.i,i.) 1,280 aec.-ft.; Hap. 4 (4t30 p.m.) 831 see.-ft. Time basis! Pacific war time. To convert war time to standard time, subtract 1 hou-. 18 TIA JUANA RIVER BASIN
Tla Juana River near Nestor, Calif.
Location.- Water-stage recorder, lat. 33°33'55", long. 117°05'15", on line between sees, a ana 4, T. 19 5,, R. 2 W., li miles south ot Nestor and 3 miles upstream from mouth. Datum of gage is 18.07 feet above mean sea level (levels by California Water & Telephone Co.). Drainage area.- 1,668 square miles, of which 1,198 square miles Is InKexIco. "9Records available.-'January to September 1915, October 1936 to September 1943. Extremes.- Maximum discharge during year, 1,060 second-feet Jan. 27 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 8.0 4.6 8.6 11 54 30 27 9.6 3.6 0.1 0 2 2.B 4.6 8 11 41 30 24 10 3.2 .6 0 S 6 6.6 S.6 9 37 33 23 9 3.5 .8 0 4 3.6 9 11 8 33 63 23 9 2.5 1.0 0 6 4.6 6.6 10 8 33 SOS 21 6 2.8 1.8 0 6 6.6 6.6 9 6.6 33 2S4 40 9.6 3.2 1.0 0 7 3.3 7 7 3.6 30 151 98 12 2.6 .8 0 8 6 10 6 5.6 41 98 148 14 2.0 0 0 9 3.3 10 4,6 10 57 74 140 18 2.5 0 oa 10 6.5 7 4.6 4.6 61 62 151 20 2.3 0 11 3.9 6 6 4.2 61 56 107 20 3.2 0 0 12 4.2 5 4.6 4.6 31 64 76 IS 4.7 0 0 13 7.2 6 7 3.3 28 60 66 15 f5 .1 0 14 7.8 S 7 6 22 52 56 7 f3.9 0 0 15 4.6 6.5 6.£ 7 22 56 66 9.5 3.5 .2 0 16 3.0 3.5 4.2 6 20 58 54 4.3 2.3 .5 0 17 3.0 S 6.6 9 20 54 48 3.9 1.6 .9 0 18 3.0 S S S.5 20 62 43 3.2 1.6 1.4 0 19 6.6 S 9 6.5 20 60 42 4.7 2.3 .6 0 20 4.6 7 9 6.5 20 64 37 2.0 2.0 .6 1.1 21 3.9 S 13 6.6 20 60 34 2.8 1.8 .4 3.1 22 3.3 7 10 13 47 52 32 2.8 1.2 .3 0 23 2.5 7 9 54 74 56 28 3.6 ,3 0 0 24 3.0 7 10 116 77 50 26 3.6 0 0 0 25 3.3 4.2 22 74 45 42 22 3.2 0 .1 0 26 3.9 4.6 19 30 36 35 20 3.2 0 0 0 27 4.6 .7 15 475 31 27 17 3.5 0 0 4.8 28 6 S 14 355 30 23 13 6.5 0 0 .4 29 S.6 S S.5 100 24 12 2.8 .4 0 .1 30 6 6.5 12 67 _ 30 9 2.6 .2 0 3.6 31 6 11 91 - 30 ~ 2.8 ~ 0 " Second- Runoff in Month foot-days MaxinuB Minimum »^n ao re-feet October...... 139.4 8.5 2.0 4.50 276 November...... 213.0 10 4.2 7.10 422 December...... 286.5 22 4.2 9.24 668 Calendar year 1942 ...... 12,615.1 2,560 0 M Oe * 25,080 January...... 1,505.3 47S 3.3 48.6 2,990 February...... 1,023 77 20 36.5 2,030 March...... "...... 2,618 808 23 S4.5 5,190 April...... 1,495 151 9 49.8 2,970 May...... 241.7 20 2.0 7.80 479 June...... 62.0 6 0 2.07 123 July...... 9.9 1.4 0 .92 20 August ...... 0 0 0 0 0 September...... 13.0 4.8 0 .43 26 Water year 1942-43 ...... 7,606.8 808 0 20.8 15,090 Peak discharge.- Jan. 84 (4r30 p.m.) 190 »»,-- _< *.. :r«n. 57 (R*in p.m.) 1,060 sec. -ft.; Feb. 22 (7:45 p.m.) 236 see.-ft.; (far. 5 (6 a.m.) 1,030 see.-ft. f Computed on basis of partly estimated gage-height record. Time basis; Pacific war time. 5Co convert war time to standard time, subtract 1 hour. TIA JUANA RIVER BASIN . 19 Dulzura conduit near Dulzura, Calif. Location.- Water-stage recorder and Cippolettl weir, lat. 32°37'0511 , long» 116°46'50", In SWt sec. 10, T. 18 S., R. 2 E., 0.1 mile south of State Highway 94'and 2.3 miles east of Dulzura. Elevation of weir crest, 1,446.41 feet. Records available^- January 1909 to September 1915, my 1940 to September 1943. \ Extremes.- Maximum daily discharge during year, 42 second-feet June 18-21; no flow on many days. 1909-15, 1940-43- Maximum daily discharge, 65 second-feet Feb. 4, 1911; ro flow during parts of each year. Remarks.- Records good. Conduit diverts from Cottonwood Creek at Barrett Dam in WWi sec. SSpf. 17 S., R. 3 E. Discharge, In second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Auf. Sept. I 0 23 0 23 23 22 0.8 aO 36 35 34 2 0 23 0 23 23 24 .7 fl.6 37 35 34 3 0 23 0 23 24 24 .7 f28 37 35 34 4 0 23 1.7 23 35 14 .6 38 36 35 34 5 0 23 10 23 13 .8 .7 40 36 35 34 6 0 23 7.5 23 16 7.8 .6 40 36 35 34 7 0 20 10 23 16 15 .6 40 36 35 34 8 0 .8 18 24 18 10 . .6 40 36 35 34 9 0 .1 25 25 23 12 .4 40 36 35 34 10 0 0 28 23 30 9.5 .3 40 36 35 34 11 0 0 25 23 33 7.5 .3 39 36 35 34 12 0 0 28 23 31 7 .2 39 36 85 34 13 0 0 24 23 30 6 a. 2 40 36 35 34 14 0 0 23 22 29 5 a. 2 40 36 35 34 15 0 0 23 22 29 4.9 a. 2 -40 35 35 34 16 0 0 23 22 29 4.6 a.l 41 35 35 34 17 0 0 23 22 29 4.2 a.l 41 36 35 34 18 1.6 0 23 22 30 3.8 a.l 42 35 35 34 19 9 0 24 22 29 3.4 a.l 42 35 35 34 20 14 0 24 22 28 3.2 a.l 42 35 35 34 21 23 0 24 23 28 2.8 a.l 42 35 '3535 34 22 22 0 24 24 29 2.4 a.l 41 34 34 23 22 0 23 27 28 2.1 a.l 41 34 S£ 34 24 22 0 16 25 28 1.9 a.l 41 34 35 34 25 22 0 18 24 28 1.7 a.l 39 35 35 34 26 23 0 23 24 27 1.7 afl 37 35 34 34 27 23 0 28 24 27 1.6 aO 37 35 34 34 28 23 0 23 24 26 1.4 aO 36 35 34 34 29 23 0 24 - 24 1.3 aO 37 35 34 34 30 23 0 24 - 23 1.1 aO 37 35 34 34 31 - 0 23 - 6 - aO 35 34 - Seoond- Runoff in Month foct-days Maximum Minimuffl Mean acre-feet 0 0 0 0 0 250.5 23 0 8.36 497 December...... t ...... 158.6 23 0 5.12 316 Calendar year 1942 ...... 6,373.6 37 0 17.5 12,650 January...... 584.2 28 0 18.8 1,160 Febr 651 27 22 23.2 1,290 Hare 79S 36 6 26.6 I,fi80 206.4 24 .8 6.88 409 May...... 8.1 .8 0 .26 16 jun@ . - - . 1,101.6 42 0 36.7 2,180 1,098 37 34 35. 4 2,180 1,079 35 34 34.8 2,140 September...... 1,020 34 34 34.0 2,020 Water year 1942-45 ...... 6,949.4 42 0 19.0 13,790 a Ho gage-height record; discharge computed or interpolated on basis of engineer's field estimate of discharge and one observation of no flow. f Computed on basis of fragmentary gage-height record. Timei basisi Pacific war time. To convert war'time to standard time, subtract 1 hour. 20 TIA JUANA. RIVER BASIN Campo Creek near Campo, Calif. Location.- Water-stage recorder and broad-crested weir control, lat. 32035'2011 , long. 116"31'35", In sec. 24, T. 18 S., R. 4 E., on State highway, 3j miles southwest of Campo. Drainage area.- 84 square miles, of which 4 square miles Is In Mexico. Records available.- October 1936 to September 1943. Extremes.- Muclmum discharge during year, 428 second-feet Jan. 27 (gage height, 2.82 feet); no flow for parts of many days. 1936-43: mxlmum discharge, 1,470 second-feet Feb. 6, 1937 (gage height, 3.80 feet), from rating curve extended above 45 second-feet on basis of V3loclty-mean depth relation and cross-sectional area at control; no flow at times during most summers. Remarks.- Records good. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.2 0.6 2.0 2.S 14 10 6 4.2 1.4 0.5 0.3 0.1 2 .1 .7 2.0 2.8 15 10 6 4.2 1.9 .5 .4 .1 3 .1 .7 2.0 2.S 11 IS 6 4.2 1.5 .5 .4 .1 4 .1 .S 2.2 2.6 10 sz 5 4.6 1.6 .4 .4 .1 5 .1 .S 2.2 2.6 9.5 42 5.5 4.6 1.5 .4 .3 .1 6 .1 .8 2.2 2.6 9 26 SI 4.6 1.5 .3 .2 .1 7 .1 .9 2.2 2.4 9 19 26 4.2 1.2 .3 .2 .1 8 .2 .S 2,4 2.4 14 IS 19 4.2 1.2 .3 .2 .1 9 .2 .8 2.4 2.6 19 17 26 3.5 1.2 .3 .2 .1 10 .2 .9 2.4 2.8 12 15 22 3.5 1.2 .3 .8 .1 11 .2 .7 2.4 2.S 9.5 IS 18 3.5 1.4 .2 .1 .1 12 .2 .7 2.4 3.0 8 15 15 3.5 1.7 .3 .1 .1 13 .2 .7 2.4 3.2 7 14 12 3.5 1.7 .3 .1 .1 14 .2 .S 2.4 "3.23.2 7 12 12 3.23.2' 1.6 t .2 .1 15 .2 1.0 2.4 7 12 12 1.2 .2 .1 16 .2 1.4 2.4 3.5 7.5 11 11 3.0 3.0 . .4 .1 17 .S 1.4 2.4 6 S 10 10 3.0 1.1 .2 .1 18 .1 1.5 2.6 6 S 15 9 2.8 1.2 .1 .1 19 .2 1.6 S.B 4.6 7.5 12 8 2.6 1.0 ^ .1 .1 20 .1 1.7 2.6 5 7.5 10 7 2.6 .9 . .1 .1 21 .1 1.6 2.6 5 9.5 9 7 2.4 .7 .4 .1 .1 22« » -1 1.5 2.8 7 12 10 6.S 2.0 .7 .3 .1 .1 AO .2 1.7 2.8 89 26 10 6 l.S .6 .2 .1 >.l 24 .2 1.7 3.0 45 13 9.5 5.6 1.8 .6 .2 .1 .2 25 .2 1.7 14 19 11 3 5 1.7 .6 .2 .1 .4 10 ' 26 .2 l.S 6 14 7.5 5 1.6 .5 .1 .1 .4 27 .2 1.8 3.5 125 10 7.5 4.6 1.5 .5 .1 .1 .4 28 .5 1.8 3.0 a30 10 7 5 1.5 .4 .2 - .1 .4 29 .9 1.8 3.0 f!6 _ 6.5 4.6 1.5 .6 .2 .1 .3 30 .8 1.9 3.0 14 - 6.5 4.2 1.5 .4 .2 .1 .3 31 .7 - S.B 14 - 6.5 1.5 .1 .1 Seoond- Runoff in Month f cot-days Maximum Minima Mean acre-feet October ...... 7.5 0.9 0.1 0* 34 14 1 90 November...... 36.6 1.9 .6 J.0AA 73- December...... 93.3 14 2.0 3.01 185 Calendar year 1942 ...... 1,840.6 62 0 5.04 3,650 Ja&tiary 444 «9 125 2.4 14.4 862 February...... :...... ,...... 301.0 26 7 10* S arch...... 468.0 82 6.5 16.1 928 April...... 309 9 26 4.2 10.3 615 May...... 91.5 4.6 1.6 2*95 June...... 32 V 1.9 .4 1. 09 66 July...... 9*6 .5 .1 isi 19 August ...... 5.5 .4 .1 IS 11 Septeaber >. 4.7 -.4 .1 .16 9.3 Water year 1942-43 ...... 1,805.0 125 .1 4.95 3,580 , Peak discharge.- Jan. 23 (11 a.m.) 195 sec.-ft.; Jan. 23 (5:20 p.m.) 174 aeo.-ft.; Jan. 27 (6:30 a.m.) 428 sec.-ft.5 Har. 4 (12:45 p.m.) 152 sec.-ft. a Mo gage-heigit record; discharge computed on basis .of probable discharge recession curve. f Computed on jtfsls of partly estimated gage-height record. Time basla; : aciflc war time. To convert war time to standard time, subtract 1 hour. OTAY RIVER BASIN 21 Jamul Creek near Jaatul, Calif. Location.- Water-stage recorder and broad-crested weir control with 5-foot Venturl flume for- low-water notch, lat. 38°38'10", long. 116°53'05", In NE* sec. 4, ?. 18 S-, R. 1 E., 30G feet upstream from county road crossing at upper end of Lower Otay Reservoir, 1.4 miles downstream from Dulzura Creek, and 5i miles south of Jamul. Altitude of gage, 500 feet. Drainage area.- 72 square miles. Records available.- April 1940 to September 1943. Extremes.- Ifexlmum discharge during year, 545 second-feet Jan. 27 (gage height, 2.73 feetj, from rating curve extended above 170 second-feet by logarithmic plotting; minimum dally, 0.2 second-foot several days In October and November. 1940-43: Maximum discharge, that of Jan. 27, 1943; minimum dally discharge, 0.1 second-foot Oct. 12-23, 1940. » Remarks.- Records good. Water diverted from Cottonwood Creek by Dulzura conduit near Dulzura flows down Dulzura creek and Is contained In these records (see p. 19 ). Discharge, in second-feat, water year October 1942 tc September 1943 Day Oot. Nov. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 e 0.2 21 0.3 26 29 26 7.5 0.9 34 35 35 2 3.3 .2 22 .S 26 27 30 7 1.0 35 35 34 3 2.5 .3 22 .7 25 28 30 6.5 13 35 35 34 4 2.1 .4 22 .7 25 143 26 6.5 34 35 35 34 5 l.S .4 22 2.1 25 148 11 6.5 40 35 35 34 6 al.4 .4 22 6 24 80 42 6.5 41 35 35 34 7 al.l .4 22 5.5 24 56 216 6.5 41 35 35 34 8 a. 8 .4 9 13 34 46 126 6 42 35 35 34 9 .5 .4 3.1 19 34 42 104 a5 42 35 35 34 10 .4 .4 2.1 21 28 48 80 a4.4 44 35 35 34 11 .4 .3 1.5 \ 22 27 70 64 3.6 43 36 36 34 12 .8 .2 1.2 22 26 54 50 3.3 42 35 36 34 13 .6 .2 1.0 23 24 50 42 3.0 41 35 36 34 14 .5 .2 .9 23 24 46 33 2.6 41 35 36 ^35 15 .4 .3 .3 23 24 47 2S 2.6 41 35 36 35 16 .4 .4 .7 24 33 43 26 2.4 41 35 36 35 17 .4 .3 .S 24 23 42 24 2.2 42 35 36 35 18 .3 .3 1.1 23 23 48 21 1.9 41 35 36 35 19 .3 .4 .9 23 22 45 19 1.7 41 35 36 35 20 .2 4.4 .8 24 82 42 17 1.3 40 35 36 35 21 .2 16 .7 24 24 41 16 1.3 42 35 36 35 22 .2 18 .7 25 39 45 15 1.2 41 35 36 35 23 .3 19 .7 63 55 44 14 1.2 39 35 36 36 24 .3 19 1.1 30 3S 41 12 1.1 38 35 36 36 25 .2 20 3.6 IS 36 39 11 1.0 38 34 36 37 23 .2 SI- 1.4 22 32 38 11 1.1 34 34 36 37 27 .2 21 1.1 234 29 36 10 1.2 33 34 36 36 28 .4 21 .9 SO 29 35 9.5 , 1.1 34 34 36 36 29 .4 21 .S 35 30 9 1.0 35 34 36 35 30 .2 21 .8 29 _ 30 8.5 1.0 35 34 36 35 31 .2 - .S 2S - 17 - .S - 34 35 - Second- Runoff in Ifcnth foot-days Maximum Minimum Mean acra-rfeet 27.0 6 0.2 0.87 54 .2 6.92 , 412 December ...... 189.5 22 .7 6.11 376 Calendar year 1942 ...... 6,597.3 55 .2 1S.1 13,090 S5S.6 234 .7 27.7 1,700 22 28.2 1,570 3,030 April ...... 216 s.a 37.7 2,240 May 3.19 198 <7un& .9 36.0 2,140 July...... 34.7 2,140 1,105 36 35 35.6 2,3,90 September ...... 1,046 37 34 34.9 2,070 Water year 1942-43 ...... 9,142.5 234 .2 25.0 IS, 120 Peak discharge.- Jan. 27 (7:30 a.m.) 545 sec. -ft.; Feb. 22 (7s30 p.m.) 243 sec. -ft. : Mar. 4 (l3~a.m.T 304 aec.-ft.; Apr. 7 (6 8 40 a.m.) 272 sec.-ft. a Ho gage-height record; discharge computed on basis of probable discharge recession curve and interpolation. Time basis; Pacific war time. To convert war tine to standard time, subtract 1 hour. 22 OTAY RIVER BASIN Otay River at Savage Dam, Calif. Location.- Lat. 32°36'40", long. 116 055'40", in NWi sec. 18 S., R. 1 E., at Savage Dam at Lower Otay Reservoir. Altitude of top of Spillway gates, 491 feet. Datum of gage is 347.20 feet above mean sea level. Drainage area.- 98 square miles. Records available.- October 1936 to September 1943. Remarks.- Records of discharge represent flow Into Lower Otay Reservoir (capacity, 56,324 acre-feet), computed on basis of records of storage, release, leakage, spill, Imported water from Cottonwood Creek, evaporation, and rainfall. Original dam destroyed Jan. 27, 1916; present structure placed in operation Mar. 13, 1922. Kean Runoff Month (second -feet) (acre-fee1;) 1.50 92 .59 38 2.56 158 3.60 2,540 29.8 1,460 16.8 1,040 43.6 2,630 S6.8 2,190 3.19 196 1.21 72 .97 60 0 0 0 0 11.0 7,9SO SWEETWft.TER RIVER BASIN Sweetwater River at Sweetwater Dam, Calif. Location.- Lat. 32°41'20", long. 117°00'35", at Sweetwater Dam In La t>clon Grant, 6 miles east of National City, San Diego County, and 8 miles upstream from mouth. Alti tude of crest of dam, 200 feet. Drainage area.- 181 square miles. Records available.- October 1887 to September 1943. Average discharge.- 56 years, 24.7 second-feet. Remarks.- Records of discharge represent flow Into Sweetwater Reservoir (capacity, 2r ,065 acre- feet), computed on basis of records of storage, release, leakage, spill, evapora tion, and rainfall, Monthly discharge, water year October 1942 to September Month Mean Runoff (second-feet) (acre-feet) 2C 1.90 11V 10.2 7,37C 4 790 April...... ryrj e .03 £ Water year 1942-43...... 19.5 14.10C Time basis; Pacific war time. To convert war time to stand- m tiine^ subtract 1 hour. 23 SAN DIEGO RIVER BASIN San Diego River at El Capltan Dam, Calif. Location.- Lat. 32°53'00", long. 116°48'40", In NEi sec. 7, T. 15 S., R. 2 E., at El Capltan Dam, 1 mile downstream fron. Chocolate Creek and 7 miles east of Lakeside. Altitude of spillway crest, 75O feet. Drainage area.- 190 square miles. Records available,.- October 1936 to September 1943. Remarks.- Flow partly regulated by Cuyamaca Reservoir. Records of discharge represent flow Into El Capltan Reservoir (capacity, 116,500 acre-feet), computed on basis of records of storage, release, leakage, spill, evaporation, and rainfall. Cooperation.- Records prepared In cooperation with city of San Diego. Monthly discharge of San Diego River at El Capltan Dam, Calif., water year October 1942 to September 1943 Mean Runoff Month (second-feet) (acre-feet) 6.92 426 5.26 313 10.6 649 Calendar year 1942...... 26.2 13,970 91.0 5,600 4S.S 2,710 176 10,330 159 9,440 May...... 29. S 1,S30 15.7 937 July...... 7.17 441 4.52 27S Septembe r ...... 6.05 360 46.7 33,310 Time basis; Pacific war time. To convert war time to standard tiJie, subtract 1 hour. San Diego River near Santee, Calif. Location.- Water-stage recorder and unfinished rubble dam control, lat. 32°49'?.0", long. 117"03'25", in the Ex Mission San Diego Grant, in Mission Gorge, 6 miles we-*t of Santee, San Diego County. Altitude of gage, about 205 feet. Drainage area.- 380 square miles. Records available.- May 1912 to September 1943 (Incomplete prior to 1920). Average dlschargeT- 28 years (1912-15, 1917-19, 1920-43), 41.1 second-feet. Extremes.- Maximum discharge during year, 1,400 second-feet Jan. 27 (gage height, 3.26 feet), from rating curve extended above 70 second-feet by logarithmic plotting; prac tically no flow at times In July, August, and September. 1912-43: Maximum discharge, 70,200 second-feet Jan. 27, 1916 (gage helgnt, 25.1 fee*, site and datum then In use); practically no flow for several months e°ch year except for a small amount of ground water that was forced to surface. Remarks.- Records good. Diversions above station for irrigation. Discharge, in second-feet water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.1 0.1 0.2 0.2 36 7.5 4.4 2.9 0.5 2 .1 .1 .2 .2 28 7.5 4,4 2.5 .6 3 .1 .1 .2 .2 22 9.5 3.& 2.1 .6 4 .1 .2 .2 .2 18 209 3.3 2.1 .5 > 0.01 5 .1 .2 .2 .2 13 152 2.8 2.5 6 .1 .2 .2 .2 10 BO 41 2.5 .4 V (t) 7 .1 .2 ,2 .2 9 48 88 2.5 8 .1 .S .2 .2 11 32 69 2.1 :* 9 .1 .2 .2 .1 15 24 58 1.6 4 (t) 10 .1 .2 .2 .2 10 20 40 1.5 .3 1 > 0.01 11 .1 .1 .2 .2 9 31 30 1.5 .3 12 .1 .1 .2 .2 8 26 22 1.3 .3 13 .1 .1 .1 .2 7.5 IS 20 1.3 .3 14 .1 .1 .1 .2 6.5 16 16 1.1 .3 15 .1 .2 .1 .2 6 16 15 1.0 .2 0.01 16 .1 .2 f.l .2 5 13 15 1.0 .2 IT .1 .2 .1 .3 5 12 12 .8 .2 Ct) 18 .1 .2 .3 .2 4.4 IS 1O .S .1 .01 19 .1 .2 .3 .2 4.4 16 9 .7 .1 20 .1, .2 .2 .2 4.4 12 9 .6 .1 O) 21 .1 .2 .2 .2 S 10 8 .6 .1 22 .1 .2 .2 .7 10 11 7.5 .6 .1 23 .1 .2 .2 21 20 10 6 .6 24 .1 .2 .2 19 13 8 5 .6 25 .1 .2 .S 2.0 12 7.5 5 .6 .01 26 .1 .2 .4 1.0 10 7.5 4.4 .7 .02 (t) 27 .1 .2 .3 470 9 6.5 3.8 .7 28 .2 .2 .2 76 8 6.5 3.3 .7 29 .4 .2 .2 40 6.5 2.9 .6 30 .2 .2 .2 30 _ 6 2.9 .5 31 .2 - .2 39 - 5 .5 Peak discharge.- Jan. 27 (5 a.m.) 1,400 sec.-ft.5 Mar. _4 (2:30 p.m.) 356 aeo.-ft.; Apr. 6 p.m.) t Discharge measurement or engineer's field estimate made on this day. f Computed on basis of partly estimated gage-height record. Note.- No gage-height record July 7 to Sept. 20; discharge computed on basis of t*o measurements, three engineer's field estimates, and interpolation. SAN DIEGO RIVER BASIN Monthly discharge, In second-feet, of San Diego River near 3antee, Calif., Water year October 1948 to September 1943 Seoond- Runoff IB Month foot-days Maximm Mini«UB tftan acre-feet 3.7 0.4 0.1 .12 7.3 5.3 .2 .1 December. :...... 3.8 .8 .1 .22 13 Calendar year 1942 ...... 1,670.55 92 0 4.58 3,310 January. . . , * . . * , ...... 702.9 470 .1 22.7 1,390 322.2 36 4.4 11.5 639 852.0 209 5 21.5 1,690 522.5 88 2.9 17.4 1,040 May...... 39.3 2.9 .5 1.27 78 6.96 .6 .232 14 .31 . _ .01 .6 .31 _ _ .01 .6 September...... 30 - - .01 .6 Water year 1942-43 ...... 2,462.58 470 - 6.75 4,880 Boulder Creek at Cuyamaca Reservoir, near Julian, Calif. Location,.- Lat. 32°59'15", long. 116°35'10", In MEj sec. 8, T. 14 S., R. 4 E., at Cuyamaca Reservoir, 7 miles south of Julian. Altitude, 4,590 feet. Drainage area.- 12.0 square miles. Records available.- June 1912 to September 1926 (outflow from Cuyamaca Reservoir), October I93b to September 1943 (Inflow to Cuyamaca Reservoir). Remarks.- Discharge computed by Geological Survey on basis of records of rainfall, evapora- tlon7 storage, overflow, and release from Cuyamaca Reservoir. Cuyamaca Reservoir was built In 1885 and enlarged In 1894. Its present capacity is 11,600 acre-feet. Cooperation.- Basic data furnished by La Mesa, Lemon Grove, and Spring Valley Irrigation District. Monthly discharge, water year October 1942 to September 1943 Month Mean Runoff (second-feet) (acre -feet) 0.47 29 .40 24 4.81 296 3.24 2,340 26.5 1,630 8.64 480 29.1 1,790 19.1 1,140 "ay- ...... S3 51. .63 39 .08 5 .10 6 .15 9 Water year 1942-43...... ,7.59 5,500 Time baaiat Pacific war time. To convert war time to standard time, subtract 1 hour. S&N BXEG0I RUTHS BASDT Satt Ulaente Creek near Foster, Calif. Location.- «atei>stage recorder, lat. 3aa5S'25% long. 116°5&'130 _ March...... _ _ _ _ May...... ______September...... - - - - 1 The period...... 159.4 - - - 316 d Doubtful gage-height record; discharge computed on basis of partial gage-hei(.;ht record end interpolation. f Computed on basis of partly estimated gage-height record. Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour. San Vlcente Creek at San Vlcente Dam; at Poster, Calif. Location.-Water-stage recorder, lat. 32°54'401', long. 116°55'35n , in sec. 31, T, 14 s., h. i Is., at San Vlcente Dam, half a mile north of Foster. Altitude of spillway crest, 650 feet. Drainage area.- 75 square miles. Records available.- October 1942 to September 1943. January to April 1915, October 1936 to septemoer 1941, at same site prior to construction of dam, published as 3m Vicente Creek at Foster. October 1941 to January 1943, at site 2 miles upstream (drainage . area, 66 square miles), published as San Vlcente Creek near Foster (see preceding page). Remarks.- Records of discharge represent flow into San Vlcente Reservoir (capacity, 90,000 acre-feet), computed on basis of records of storage, release, leakage, spill, evapora tion, and rainfall. Records Oct. 1 to Jan. 23 taken from records at station near Foster. Cooperation.- .Records Jan. 24 to Sept. 30 furnished by city of San Diego. 605906 O - 44 - 3 26 SAN DIEGO RIVER BASIN Monthly discharge of San Vlcente Creek at San Vlcente Dam, at Poster, Calif. . water year October 1942 to September 19*3 Month Mean Runoff (second-feet) (aere-fe3t) 23 7 12 6 2 9YO 5 48 Water -rear 1942-43...... 10.8 7.830 SAN DIEGUITO RIVER BASIN Santa Isabel Creek near Mesa Grande, Calif. Location.- Water-stage recorder and broad-crested weir control, lat. 33°07'15", long. 116"48'30", in NEjNWi sec. 20 T. 12 S., R. E., half a mile upstream from Black Canyon Creek and 44 miles southwest of Mesa Grande. Altitude of gage, 2,000 feet. Drainage area.- 58 square miles. Records available.- October 1936 to September 1943. Decmeber 1912 to September 1928 at site 1 mile upstream. Average discharge.- 22 years (1913-28, 1936-43), 34.2 second-feet. Extremes.- Maximum discharge during year, 1,060 second-feet Jan. 27 (gage height, 3.28 feet;; no flow Oct. 1-12, Sept. 5-30. 1912-24, 1936-43: Maximum discharge, 21,100 second-feet Jan. 27, 1916, by slope- area method; no flow at times. Remarks.- Records good. Small diversions above station. Discharge, in second-feet, water year October 1942 tc September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0 1.0 1.9 3.2 34 31 36 36 13 3.5 0.5 0.1 2 0 1.0 1.8 3.2 32 29 36 38 16 4.0 .7 .1 3 0 1.0 1.9 3.0 2S 45 34 38 13 4.S .7 .1 4 0 1.1 2.2 2.8 26 494 32 40 13 5.5 1.0 .1 5 0 1.4 2.4 2.S 23 345 34 3S 12 4.8 1.7 0 6 0 1.3 2.4 2.8 20 253 206 36 11 4.2 1.1 0 7 0 1.2 2.4 2.6 18 147 210 38 11 3.1 .8 0 8 0 1.1 2.4 2.6 49 117 193 36 10 2.4 .6 0 9 0 1.1 2.3 2.5 60 97 262 32 9 2.1 .5 0 10 0 l.O 2.2 2.5 34 81 157 29 10 2.1 .3 0 11 0 .7 2.2 2.7 26 81 137 28 11 2.3 .3 0 12 .2 .6 2.1 2.8 23 68 129 24 14 2.6 .3 0 13 1.3 .7 1.9 2.9 20 63 101 23 14 2.6 ^3 0 14 1.0 .7 1.8 2.9 21. 58 81 24 12 2.2 .2 0 15 .8 .9 1.6 2.9 21 65 . 78 24 11 2.2 .2 0 Ifi .7 1.9 1.5 3.1 20 50 88 23 10 2.4 .4 0 17 .5 1.9 1.7 3.5 20 46 81 21 9 2.4 .7 0 IB .5 1.7 2.6 3.6 IS 127 65 21 10 2.4 .5 0 19 .5 2.4 3.0 3.2 17 78 63 20 12 2.5 .3 0 20 .5 3.2 2.6 3.1 17 65 60 20 10 2,1 .2 0 21 .4 2.2 2.5 3.2 26 58 60 18 9 1.6 .2 0 22 .4 1.6 2.5 17 56 63 58 17 8.5 1.4 .3 0 23 .5 1.3 2.6 427 123 53 53 16 8 1.2 .3 0 24 .8 1.4 3.1 f!64 58 48 4b 15 7.5 1.0 .2 0 25 .9 1.6 24 f40 50 46 48 15 6 .9 .2 0 _ 26 .9 1.7 6 42 40 44 48 15 6.5 ,7 .2 0 27 .9 1.8 3.5 462 36 40 46 15 5.5 .7 .2 0 .1 2fi 1.4 2.0 3.2 91 32 40 38"42 14 5.5 .9 0 29 2.1 1.9 3.2 50 - 40 13 4.5 ,9 .1 0 30 1.6 1.9 3.2 48 . 40 36 14 3.5 .7 ,1 0 31 1.3 - 3.2 42 - 40 - 14 ~ .5 .1 - Seocnd- Runoff in Month foot-days Maximum Minimum Mean acre-feet 17.2 2.1 0 0.55 $4 November 43.3 3.2 .6 1.44 86 December ...... 99.8 24 1.5 3.22 198 Calendar year 1942 ...... 3,806.7 186 0 10.4 7,560 1,444.9 462 2.5 46.6 2,870 February 948 123 17 33.9, 1,880 March...... 2,832 494 29 91.4 5,620 32 85,3 5,060 May 755 13 24.4 1,500 295.5 16 Z.i, 9.85 586 70.7 5.5 .5 2.28 140 .1 .43 September ...... 4 .1 0 .013 .8 Water year 1942-43 ...... 9,080.1 494 0 24.9 18,020 Peafc discharge.- Jan. 23 (5 p.m,) 776 aec.-ft.; Jan. 27 (8 a.m.) 1,O60 aec.-f(-,; Feb. 23 (12:40 a.m.) 415 see.-ft.; Mar. 4 (8t30 a.m.) 912 sec.-ft.; Apr. 6 (6:30 p.m.) 318 sec.-ft.; Apr. (8s30 p.m.) 362 see. ft. f Computed on basis of partly estimated gage-Height record. Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour. SAN DIEOUITO RIVER BASIN 27 San Dieguito River at Lake Hodges, Calif. Location.- Lat. 33°02'55", long. 117007'25B , in NWi sec. 18, T. 13 S., R. 2 W., at Lake Hodges Dam, 5-fe miles southwest of Escondido. Altitude of spillway crest, 315 feet. Drainage area.- 303 square miles. Records available.- January 1916 to September 1943. Average discharge.- 27 years, 58.1 second-feet. Remarks.- Diversions for irrigation In San Pasqual Valley, above Lake Hodges. Some pump- Ing from wells along river. Gaging station formerly maintained at dam site was dis continued In 1919, when Lake Hodges Dam was completed. Records Qf discharge represent flow into Lake Hodges (capacity, 37,530 acre-feet), computed on basis of records of storage, release, leakage, spill, evaporation, and rainfall. Cooperation.- Records furnished by city of San Diego. Monthly discharge, water year Ctetober 1942 to September 1945 Mean Runoff Month (second -feet) (acre-feet) 0.75 46 21 4.36 266 35.4 25,620 10,470 4,440 19,610 Hay...... 1,660 162 0 0 .03 1.8 64.5 46,700 SAN LUIS REY RIVER BASIN San Luls Rey River at Lake Henshaw, near Mesa Grande, Calif. Location.- Lat. 33014'15", long. 116 045'50", In NWi sec. 10, T. 11 S., R. 2 E., at Hensnaw Dam, 5 miles north of Mesa Grande. Altitude of spillway crest Is 2,727 feet. Drainage area.- 209 square miles. Records available.- October 1911 to September 1943. Average discharge.- 32 years, 46.6 second-feet. Remarks.- No diversions above station. Lake Henshaw Reservoir (capacity, 203,600 acre- feet) was completed In 1923, and gaging station formerly maintained 1 mile below dam was abandoned. Cooperation.- Records furnished by San Diego County Water Co. Monthly discharge, water year October 1942 to September 1943 Month Mean Runoff (second-feet) (acre-feet) 7.90 486 5.27 314 12.4 762 34.5 23,970 173 10,620 84.4 4,690 183 11,250 82.7 4,920 May...... 28.9 1,780 17.7 1,O50 14.2 S72 12.4 764 September...... 10.3 613 Water year 1942-43...... 52. V 38,120 Time oaala; Pacific war time- To convert war tin: standard time, subtract 1 hour 28 SAM LHIS RET RITES BASIS' San Luls Rey River near Bonsai 1, Calif. Location.- Water-stage recorder, lat. 3S(*15'£ffi?l:, long. H7°14'55*, In HEi see. 1, T. 11 ^», K. 4 w., three-quarters of a mile downstream from Bridge OH Fall Broak-EBconflido road and 5 miles southwest of Bonsall. ' Altitude of gage, about 130 feet. Drainage area..- 514 square miles. Racords available.- October 1929 to September 1943. July 1916 to September 1918 (gage neigtrcs ana aischarge measurements only) at site three-quarters of a mile upstream. April 1912 to January 1916 at site at Bonsall (records not e Discharge, IB second-feet, water-year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. F6b. Mar. Apr. May June July Aug. Sept. 1 0.8 0.1 12 20 117 59 56 34 5 0.6 2 .3 .1 12 20 92 52 54 29 6.5 .8 3 .1 .2 12 20 82 87 48 31 6.6 .8 4 0 .3 12 20 71 1,690 48 31 6 .8 5 .1 .3 12 20 62 366 54 31 6 .S 6 .1 .3 13 20 54 503 188 29 10 .; 7 .2 .4 14 18 50 362 203 31 9 .£ 8 .2 .4 IS 18 108 265 142 26 8 .S 9 .1 .3 13 17 123 196 162 20 9 .e 10 .1 .3 13 17 74 174 117 16 9 .? 11 .1 .2 12 17 59 170 105 16 10 .5 12 .6 .1 12 18 52 149 102 16 10 .£ 13 .2 .1 12 18 46 132 102 14 9 0 14 .3 .2 13 18 44 123 92 13 9 0 15 .2 .4 14 18 44 120 92 14 6.5 0 16 .2 2.4 14 18 38 105 96 13 6 0 17 .1 3.9 16 23 32 102 99 12 3.9 0 IS .1 5 20 18 34 163 89 10 3.9 0 19 0 7.5 18 14 34 142 74 6.5 2.8 0 20 0 8 18 16 29 105 68 3.4 2.4 0 21 0 7,5 18 18 59 96 59 2.8 .1.2 0 22 0 8 18 144 102 99 56 3.9 1.0 0 23 0 8 17 2,080 266 96 54 4.5 1.6 0 24 0 S 20 802 203 79 52 5.S 1.0 0 26 .1 9 50 196 156 74 46 7.5 1.0 0 26 .2 10 27 156 96 71 46 11 1.0 0 27 .4 11 21 996 76 71 42 10 . -8 0 28 1.0 13 20 386 66 71 40 7.5 .6 0 ' 29 .6 12 20 207 _ 71 42 5 1.0 30 .3 12 20 161 _ 64 40 4.5 1.0 0 31 .2 - 20 156 " 62 - 4.5 - 0 Second- Runoff in Month foot-days Maximum Minimum acre-feet October...... 6.6 1.0 0 0.21- 13 November...... 129.0 13 .1 4. 30 256 December...... 526 50 12 17.0 1,040 Calendar year 1942 ...... 9,471.0 393 0 25.9 18,790 January...... 5,690 2,080 14 184 11,290 February...... 2 269 266 29 81.0 4,500 March...... 6« 409 52 207 12,710 April...... 2,458 203 40 81.9 4,S60 May...... '...... 462* 3 34 2 .6 14.9 917 June ...... 148.7 10 6 5.96 * 295 July...... 5.5 o' 8 0 .18 11 August ...... 0 0 0 0 September...... 0 0 0 0 0 Water year 1942-43 ...... '...... 18,104.1 2,080 0 49.6 56,910 Peak discharge,- Jan. 23 (12 n. ) 3,770 sec. -ft. t Jan. 27 (12:40 p.m.) 2,110 sec. -ft.; Feb. 23 (7 p.m.) S57 seoi-ft.} Mar. 4 (8:SO a.m.) 2,660 sec.-ft. Tiae basle; Pacific war time. To comreri war time to standard time, subtract 1 hour. SANTA MARGARITA RIVER BASIS 29 Temecula Creek at Nigger Canyon, near Temecula, Calif. Location.- Waters-stage recorder, lat. 33°29'40", long. 116°59'00", In Pauba Grant, at upper «nd of Nigger Canyon, a quarter of a mile downstream from Arroyo Seco, and 10 miles east of Temecula, Riverside County. Altitude of gage, about 1,350 feet. Drainage area.- 319 square miles. Records available.- January 1923 to September 1943, Average discharge.- 20 years, 16.4 second-feet. Extremes.- Maximum discharge during year, 3,300 seeonfl-feet Jan-. 23 (gage height, 4.60 reet;, from rating curve extended above 40 second-feet; minimum dally, 1.1 second-feet July 27, Aug. 8. 1923-43: Maximum discharge, 17,100 second-feet Feb. 16, 1927 (gage height, 19.5 feet), by slope-area method; minimum, 0.6 second-foot Aug,. 17, 1934. Remarks.- Records good below 50 second-feet, fair from 50 to 100 second-feet, and poor aoove 100 second-feet. No diversion above station. Cooperation.- Gage-height record and 95 discharge -measurements furnished by Srnta nargarita Ranch and Pauba Ranch. Discharge, in second-feet, water year October 1942 tc September 1933 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July , Aug. -Sept. 1 .0 6 8.5 9 37 37 16 IS 7,5 3.1 2.6 S.2 2 .2 6 8.5 e.s 32 31 16 10 7.5 3.1 S.2 2.2 3 .2 6 8.5 8.5 26 46 16 10 6.5 3.1 2.6 e.e 4 .2 6 10 8.5 26 500 16 11 5.5 2.6 2.S 2.6 5 .2 6 10 9 23 100 22 12 7.5 2.6 2.2 2.6 6 .0 5.5 9.5 9 19 65 46 11 7.5 2.6 1.9 1.9 7 .0 6.5 8 9.5 22 59 37 13 8 2.6 1.6 1^9 8 .2 6.5 8 9 24 65 31 14 7.5 2.2 1.1 1.V 9 .5 7 8 9 22 65 31 10 4,2 S.6 1.6 1,9 10 4.S 7 8.5 9 S2 63 29 10 4.2 S.2 1 .-& 1,9 11 4.8 6.5 8.5 8.5 17 57 S7 8.5 4.2 2.2 1,9 1.9 12 S 6 8.5 8.5 16 59 24 8.5 ' 5.5 1.9 a2.0 1.0 13 5 6.5 . S.5 8.5 16 48 24 7.5 6.5 2.6 2.2 1.9 14 4.8 7 8.S 9 14 41 22 7.5 6.5 3.1 2.2 X.9 15 4.0 7.5 S.5 9.5 14 37 19 5.5 6.5 3.1 2J£ 1.9 16 4.8 8 7.5 9 14 37 22 5.5 5.5 3.1 3.1 1.9 17 4.S S 8 9.5 16 36 19 4.9 4,8 3,1 2.6 1.9 18 S 8.5 8.5 8.5 18 45 17 4.9 4.2 3.1 S.2 l.S 19 6 9 9 9.5 20 39 17 5.5 4.9 2.6 2,S 1.9 20 6 8 9 9.5 22 34 18 4.9 4.2 1.9. S,2 1,9 21 4.8 8 9 10 27 32 19 6,5 4.2 2.6 1.9 1.9 22 4.8 8 8 73 36 32 19 6.5 3.6 2.6 2,6 ' 1.9 23 5 8 7.5 1,500 63 32 15 6.5 3.1 2.2 S.S 1.9 24 6 8 9 eeoo 46 31 15 6.5 'S.6 2,6 S.2 £.2 25 6 7.5 16 e50 5S 28 15 7.5 3.1 1.9 2,2 3,6 4 2 1 26 6 7.5 12 32 46 26 14 7.5 S.6 2.2 1.9 *» October...... 157 .9 7 4.13 5.O9 313 November...... 222.0 10 5. 5 7,40 440 December...... 280*.0 16 7. 9 9.03 . 555 Calendar year 1942 ...... 4, 366. -2 S7 2. 7 12,0 8,660 January...... 2,442.0 1,5OO S.i» 78 S 4,840 February...... 778 "63 14 27. S 1,540 March...... 1,759 500 19 56 7 5,490 April...... 6X9 46 18 20.6 1,250 May...... 14 4..9 8 07 496 June ...... 151^7 8 2. 5 5.06 301 July 75.9 3.1 2. 1 2.45 151 August ...... 66.4 3.1 1.'I 2.14 132 September...... 69.8 4.E l.(J 2.33 13S Water year 1S4S-4S ...... 6,871.9 1,500 1.1L IS 8 13,630 Peak dlschtrze,- Jan. 23 (9 a.m.) 3.300 sec. -ft. t Jan. 27 (9:30 a. a.) 573 sec. -ft.', Feb. 28 , (4 a.m.) 135 sec.-ft.; Mar. 4 (1:30 a.m.) 1,000 aeo.-ft. a Ho gage-height record; discharge Interpolated. a Stage-discharge relation Indefinite; discharge computed on baala of one discharge measurement and records for ttarrleta Creek, Temecula Creek at Railroad Canyon, and Santa Margarita River near Fall Brook. Time baalsi Pacific war time. To convert i«ar time to standard tine, subtract 1 hour. 30 SANTA MARGARITA RIVER BASIN Temecula Creek at Railroad Canyon, near Temecula, Calif. Location.- Water-stage recorder, lat. 33°28'25", long. 117°08'35", In Temecula Grant, at upper end ef Temecula or Railroad Canyon, an eighth of a mile dovmstrean frcan Murrleta Creek, and li miles south of Temecula, Riverside County. Altitude of ge^e, about 950 feet. Drainage area.- 592 square miles. Records available.- January 1923 to September 1943. Average discharge.- 20 years, 31.4 second-feet. Extremes.- Maximum discharge during year, 18,200 second-feet Jan. 23 (gage height, 12.0 reet ); minimum daily discharge, 6 second-feet Sept. 6, 16. 1923-43: Maximum discharge (revised), 25,000 second-feet Feb. 16, 1927 (gage height (revised), 14.6 feet); minimum, 0.4 second-foot July 16, 1925. Remarks.- Records good. Pumping diversions affect flow during Irrigation season. Cooperation.- Gage-height record and 300 discharge measurements furnished by Santa nargarita Ranch and Pauba Ranch. Discharge, in second-feet, water year October 1942 to September 194? Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 9 9 11 12 f63 58 31 14 11 10 6.5 S.5 2 9 9.5 11 12 40 54 26 15 9.5 9.5 6.5 6 3 9 10 11 11 42 270 2S 13 11 9 7.5 7.5 4 8.5 11 11 11 37 2,870 27 14 13 9 7.5 6.5 5 8 11 11 11 35 6650 25 13 10 9 7 7 6 9 11 11 11 31 314 64 13 9.5 6.5 7.5 6 7 9 10 11 11 29 225 71 16 9 6 7 S 8 9 9.5 11 10 54 166 f50 13 11 S.5 6.5 6 9 10 9 10 11 50 156 f54 12 11 7.5 6.5 6 10 10 10 11 11 36 116 47 11 12 S.5 7.5 7.5 11 10 9.5 11 11 2S 109 40 11 11 6 6 7.5 12 12 9.5 11 11 25 69 33 11 13 f7 6 7.5 13 9 10 11 12 21 76 44 11 12 6 6.5 7.5 14 S.5 10 10 12 21 65 29 12 10 7.5 6 6 15 9.5 10 10 12 23 63 37 7.5 11 9 6 7.5 16 8 10 12 13 22 65 36 9 12 fe 6 6 17 8.5 10 11 13 20 60 35 11 11 f8 7 7 16 8.5 11 11 13 22 61 31 11 10 6.5 7 6 19 8 11 11 13 22 71 26 11 10 8.5 7.5 6 20 8.5 10 11 12 22 63 27 11 10 f8.5 8.5 7 21 S 9.5 11 13 95 5S 31 9.5 9.5 fs 9 S 22 7.5 9.5 11 637 700 65 24 9.5 9.5 6 6.5 7.5 23 9 10 11 8,400 el, 100 56 23 9.5 9.5 fs 3.5 6 10 9.5 13 8470 elSO 45 20 1210 ' S.5 f6.5 S.5 6 25 8.5 10 19 ellO 152 37 19 9 7.5 6 6 26 8.5 11 11 680 103 45 16 12 9.5 6.5 6 S 27 10 11 11 el, 100 89 40 17 12 9 7.5 6 8.5 26 11 11 11 e!60 71 36 19 12 6 7 7.5 9.5 29 11 11 12 e65 35 17 12. 6 6 6 7 30 10 1O 12 71 _ 3E 16 12 9 7 6 7.5 31 9 - 11 f95 - 33 - 12 - 7 7.5 - Seoond- Runoff in Month foot-days JUaxiBUB Minimum Merva acre-feet December ...... 351 19 10 11.3 696 Calendar year 1942 ...... 6,021.0 279 6 16.5 11,930 11 454 March...... an April ...... AA 32 9 May...... *7 *718 13 0 608 July...... 5 8 11 499 September ...... 231.0 9.5 6 7.70 458 Water year 1948-43 ...... 24,006.0 6,406 6 65.6 47,620 Peak discharge.- Jan. 23 (6 a.m.) 18.200 sec. -ft.; Jan. 27 (6 a.m.) 2,140 see. -ft.;, Feb. 22 (12 p.m.) 5,310 sec.-ft.; Bar. 4 (11:30 a.m.) 5,680 see.-ft. e aage-height record Incomplete; discharge computed on basis of partial gage-heigh*:. record, dis charge measurements, and records of discharge for other stations In basin. f Computed on basis of partly estimated gage-height record. Time basis; Pacific war time. To convert war tine to standard time, subtract! 1 h-rur. SANTA MARQARITA RIVER BASIN 31 Santa Margartta River near Fall Brook, Calif. Location.- Water-^stage recorder, lat. 33°24'35", long. 117°14'50", In NEl sec. IZ, T. . 9 3.', R. 4 W., 2 miles north of Fall Brook. Altitude of gage, about 290 feet. Aux iliary water-stage recorder on opposite bank about 2,000 feet downstream. Drainage area.- 645 square miles. Records available.- November 1924 to September 1943. Average discharge.- 18 years (1925-43), 42.0 second-feet. Extremes.- Maximum discharge during year, 22,000 second-feet Jan. 23 (gage-height, 10,72 leet); minimum dally, 4.8 second-feet Aug. 10, Sept. l, 22. 1924-43: Maximum discharge. 33,100 second-feet Feb. 16, 1927 (gage height, 15.6 feet), by slope-area method; minimum, 0.1 second-foot Aug. 30, 1925, Sept. 4, 1926, Sept. 6, 1928, and at times during July and August 1929. RemarKs.- Records good except those for periods of Incomplete gage-height record, which are fair. Several diversions above station. Cooperation.- Gage-height record and 308 discharge measurements furnished by Santa rargarita Ranch and Pauba Ranch. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. . Sept. 1 .7 S 12 12 101 101 47 24 15 8 5.S 4.6 2 8 8 12 14 85 96 47 22 16 9 e.s 3 7 e.6 14 14 67 132 44 21 15 8 e 5.5 4 6.5 9.S -12 14 74 63,200 44 20 14 9 e.s 8 5 8 8.S 11 14 57 6975 44 21 13 9 i 8.5 6 S.5 9.5 11 12 51 6500 107 22 14 9.5 e 7 7 8 9.S 11 12 53 363 104 83 13 8.5 e.s 6.5 8 8.5 9.S 12 12 74 255 79 19 16 6.5 5.5 9 8.5 9.6 12 14 96 228 79 17 12 8 8.5 6 10 6.5 S.5 12 14 63 196 67 16 13 7 4.8 7 11 6.5 8.5 11 14 45 IBS 61 14 15 9 6 6 12 10 8.6 12 12 40 15S 55 16 IS 9.5 S.5 5.6 13 10 9.6 12 14 28 140 67 16 16 6.5 7 7 14 9.5 9.5 11 14 32 123 63 16 15 8 6 6.5 15 8.5 10 10 14 32 111 53 16 13 10 e 5.5 16 8.5 11 11 16 37 105 51 16 11 S , e 6 17 B 10 11 16 34 105 51 17 12 8 6 5.5 18 8.5 9.5 IS 15 32 123 50 13 9 8 6.6 6.5 19 8.6 14 14 14 32 111 48 14 12 8.5 e.s 6 20 7 11 14 11 28 91 42 14 11 9.5 6.5 8.5 21 8.5 8.5 12 15 112 89 38 14 9.5 8 6 5.5 22 8 9.5 11 500 540 96 36 16 11 7 6 4.8 23 8 10 12 e9,000 el, 600 89 36 14 9 6.5 5.5 5 24 7 10 16 6620 e360 77 36 14 9 8.5 7 5.5 25 8.5 11 34 6195 236 74 33 14 9 S.S S.S 7 2B 8 14 17 143 174 65 32 16 8.5 7 6 6.5 27 8.5 14 15 el, 200 126 57 28 18 8 , 6 S.S 8.5 28 12 14 14 6300 110 57 23 14 6 6 5 8.5 29 15 12 12 183 - 55 23 16 8.5 6 5.5 8.5 30 9.5 12 12 136 - se 24 14 7 5 6.5 7 31 9.5 - 12 147 - 65 - 13 - 5.5 e - Second- _. Runoff in Month foot-days Maximum Minimum 118811 acre-feet October...... ^ ...... 364.0 16 6.f> 8.52 524 November ...... 305.5 14 10.2 606 December ...... 404 34 10 13.0 801 Calendar year 1942 ...... 6,834.2 191 4.S 18.7 > 13,560 January ...... 12,910 9 f \J\J\Jnf\f\ 416 25,610 February...... 4,219 1,500 li 151 8,370 March...... 8,071 3,200 55 260 16,010 April ...... 1,512 107 23 50.4 3,000 May...... 515 24 13 16.6 1,020 June ...... 355.5 16 6 11.8 706 July...... 241.5 10 5 7.79 479 August ...... Z88* E 9.5 4.Ei 6.09 374 September...... 195.6 8.5 4.f3 6.52 388 Water year 1942-43 ...... 29,181.9 9,000 4.f3 80.0 57,890 Peak discharge.- J in. 23 (6:30 a.m.) 22,OOO eec.-ft.; Jan. 27 (6:30 a.m.) 8,080 see. -ft. I Feb. i!S (12130 a.m.) 5,590 a so. -ft.; Bar. 4 (1 D.m. ) 6.080 sec. -ft. e Gage-height record incomplete; discharge computed on basis of partial gage~height reocrd, dis charge measurements, and records for other stations in basin. Time baalai Pacific war time. To convert war time to standard time, subtract 1 hour. 32 SANTA HARSARITA MVEB BASIN Santa Wargarlta River at Tsl flora, Calif. Location.- Water-stage recorder, 1st, S3 "WAD", long. 117°22'50% In £mta. Margartta Y Las Vlores Grant, 1 mile downstream from Yslflora, San Diego County, saa 2 miles up stream from mouth. Altitude of gage, about 15 JTeet. Drainage area.-. 740 square miles, Records available.- February 1923 to September 1929, October 1930 to September 1943. Average discharge.- 15 years (1927-29, 1930-43), 53.3 second-feet. Extremes.- Maximum discharge during year, 19,000 second-leet Jan. 23 irage height, 14.05 feet) , from rating curve extended above 9,000 second-feet; no flow for several months. 1923-29, 1930-4S: .Maximum -discharge, 33,600 second-feet Feb, 16, 1827, by slope- area method; no flow during part of most years. Remarks.- Records fair. Water diverted above station for Irrigation or Santa Margarlta Ranch and Pauba Ranch. (See p. 34 for records of 0*Belll ditch near rsldora.} Cooperation.- dags-height record and 156 discharge measurements furalsl «d by Santa nargari'ca Ranch and Pauba Ranch. Discharge, in second-feet, water year October 1942 to Septeribe- 1043 Day Oct. NOT. Dec. Jan. F*b. Mar. Apr. ay June July Aug. Sept. 1 o 4.2 10 262 219 87 30 10 2 0 4.0 10 811 188 69 28 13 3 0 4_5 10 188 200 72 28 18 4 0 6 10 151 2,800 63 87 11 5 0 7 11 144 1,480 61 27 8 6 0 S.S 9 187 823 135 28 6.5 7 0 4.8 9 116 616 161 30 5.5 8 0 5 9 144 492 183 30 9 0 5,5 9.5 174 412 107 24 6 J.O t> 5.5 '9.5 118 362 104 19 5 11 0 5 9.5 10S 385 78 19 f.5 12 0 5.5 9 96 267 f81 18 .1 13 0 5.5 9 32 267 90 16 0 14 o 5.5 9.5 70 261 SI 15 0 15 0 5 10 72 232 72 14 0 16 p 5.5 11 66 185 78 15 0 17 0 13 64 170 72 14 0 IB 0 fl 13 60 286 66 14 0 19 0 9 12 58 185 61 9.5 0 20 0 8.5 10 60 161 56 8 0 21 0 S.5 12 97 161 56 9 0 22 .2 7.5 775 306 157 56 9 0 ( 23 .2 8.5 9,700 1,860 170 S3 9 0 24 .5 10 1.300 640 135 44 10 0 25 .7 31 450 fS06 115 44 11 0 *fi 3.0 27 335 406 107 38 14 0 27 2.8 IS 1,840 285 100 44 16 0 28 4.2 13 680 236 93 36 13 0 29 3.5 18 f385 - 93 40 18 0 30 3.3 11 271 - 93 38 11 0 31 "" 10 325 ~ 84 ~ 10 " Seoond- Runoff in Month foot-days IteximuB MiniwiB Maern acre-feet 1 R Jt 4.2 December...... 273.0 31 4.C> 8.81 541 Calendar year 1942 ...... 6,246.1 180 0 17.1 12,380 February March...... 2 800 April...... 4 309 May...... July...... :...... September...... 0 0 0 0 0 Rater year 1943-43 ...... 37,447.5 9,700 0 103 74,270 Pgfikdt «.- Jan. 83 (9 a.si.) 19,000 sec.-ft.; Jan. 87 (lOtSQ a.m.) 3,100 sec.-ft.; Feb. 23 (4 P.M.) 3,200 aeo.-ft.; War. 4 (4 p.M.) 4,500 eeo.-ft. f Computed on basis .of partly estimated gage-height record. ala; Pacific war tine. To convert war time to standard time, subtract 1 hour. SANTA HARQARITA RIVER BASIN Murrieta Creek at Temecula, Calif. k°catlon.-> Water-stage recorder, lat. 33°29'00", long. Drainage area.- 220 square miles. Records available.- October 1930 to September 1943. Average discharge.- 13 years, 16.1 second-feet. 2S (gaee tlmedurne Remarks.- Records good. No appreciable diversions above station. .- Gage-height record and 302 discharge measurements furnished by mrgarltff Ranch and Pauba Ranch. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.7 0.9 1.8 1.4 38 30 9 8.7 1.1 0.8 0.5 0.5 2 .7 .9 l.E 1.4 84 26 7 B.7 1.2 .7 .5 .6 3 .6 .8 1.4 1.5 20 E43 7.5 8.7 1.2 .6 .5 .6 4 .7 .8 1.5 1.5 8,830 6 8.5 1.8 .6 .5 .6 5 .8 1.0 1.5 1.4 15 370 7 2.5 1.3 .7 .5 .6 6 .7 .9 1.4 1.6 14 171 81 ' 2.4 1.1 .6 .6 .5 7 .7 1.0 1.4 1.5 12 106 14 2.5 .9 .6 .5 .6 8 .8 1.0 1.4 1.5 19 76 IS 1.9 1.0 .6 .5 .6 9 .8 1.0 1.5 1.6 82 63 11 1.5 1.0 .6 .5 .5 10 .8 1.0 1.3 1.6 15 56 9.5 1.4 1.1 .6 .5 .6 11 .8 .9 1.6 1.5 10 47 8 1.5 .S .6 .6 .7 12 .9 .9 1.4 1.7 8.5 40 11 1.8 1.1 .6 .6 .7 13 .9 1.0 l.S 1.7 7.5 35 SO 1.3 1.3 .6 .5 .6 14 .6 .9 1.4 1.7 8 30 8 1.4 1.9 .6 .6 .7 15 .8 1.0 1.5 1.6 8.5 30 7.5 1.3 1.3 .7 .6 .6 16 .8 28 7.6 1.6 1.2 .7 .6 .6 17 .8 1.0 1.4 2.8 7 E4 6 1.6 1.8 .6 .6 .6 18 .8 1.0 1.6 1.8 7.5 30 6 1.4 1.1 .6 .5 .6 19 .8 1.1 1.5 1.6 7 23 5 1.4 l.C .6 .5 .6 20 .8 1.1 1.4 1.6 6 20 6 1.8 .9 .6 .5 .5 '' .6 21 .8 .9 1.3 1.9 104 18 5 1.8 .9 .6 .5 22 .8 .9 1.4 468 768 22 4.6 1.2 .7 .5 .5 .6 23 .7 1.0 1.4 87,000 1,040 21 4.E 1.8 .8 .4 .6 .6 24 .9 1.0 1.6 e!75 165 16 4.8 l.E .8 .5 .6 .6 25 .S 1.0 3.1 e57 81 13 3.5 1.3 .7 .4 .6 .8 26 .9 1.1 1.8 41 56 IS 3.6 1.0 .7 .6 .6 .8 27 .9 1.1 1.4 941 48 IS 3.5 1.3 .7 .7 .6 .8 28 1.1 1.1 1.3 92 34 11 3.5 1.4 .7 .6 .5 .7 29 .9 i.e 1.4 38 10 3.1 1.4 .8 .6 .5 ' .7 30 1.0 1.8 1.5 39 9.5 3.0 1.4 .7 .6 .5 .6 31 .9 1.4 70 8.5 l.S .6 .5 Second- Runoff in Month foot-days Maximum Minimum Mean acre- feet Goto b*r...... 85.3 1.1 o.e 0.88 50 Move E9.8 l.S .£ ) .99 59 Deoanber...... 46.1 3.1 l.S! 1.49 91 Calendar year 1942 647.7 35 1.77 1,880 Jami ary 8,949.1 7, COO 1.4 889 17,750 February 2,558.5 1,040 6 91.4 5,070 Marc 3,830.0 2,230 S.E 124 7,600 Apri SE7.E 21 3.C 7,57 451 50.5 S.7 1.0 1.63 100 June 30.5 1.9 .1 1.02 60 July 18.7 .8 .4 .60 37 Augu. 16.7 .6 .E .54 33 Septsaber...... 18.7 .8 .8 .62 37 *ater year 1942-4S ...... 15,801,1 7,000 .4 43.3 31,340 Peak discharge.- Ji«l. 23 (7 a.m.) 17,500 sec. -ft.; Jan . 27 (5 a.m.) 1,850 eee.-ft.j Feb. 88 UljIS p.mTr6?S6o s 50. -ft.; Mar. 4 (11:30 a.m.) 5,000 a«e.-ft. « Incomplete gage-1lelght record; discharge computed en basis of high-water mark, partial gage- height record, one d .scharge measurement, and records fo r other stations in basin, Time baslat Pacif Lc war time. To convert war time to standard time, subtract 1 hcur. 34 SANTA MARGARITA RIVER BASIN O'Nelll ditch near Ysldora, Calif. Location.- Water-stage recorder, lat. 33°19'40", long. 117°19'45*, 100 f *t upstream from point of discharge Into O'Nelll Reservoir and 6 miles northeast of Ysldora, San Diego County. Records available.- October 1930 to September 1943. Average discharge.- 13 years, 2.92 second-feet. Extremes.- Maximum dally discharge during year, 18 second-feet June 12, 13; no flow for 1930-43: Maximum dally discharge, 35 second-feet May 24, 1937; no flow during parts of each year. Remarks.- Ditch diverts water from Santa Margarita River. Cooperation.- Records furnished b'y Santa Margarita Ranch and Pauba Rancii. Discharge, in second-feet, water year October 1942 to September 1943 Daj Oct. Mov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0 7 3.2 2.9 2 0 7 8.8 3.2 0 7.5 2.2 3.3 4 0 8 1.4 3.1 5 0 S 1.8 3.5 6 0 a 1.6 3.5 7 0 7.5 1.5 3.1 8 0 7 1.5 3.0 9 0 6 1.5 2.8 10 0 6 1.3 2.6 11 6 6 1.7 2.9 12 18 6.5 ' 8.4 8.7 13 IS 6.5 3.0 9.1 14 16 6.5 3.3 3.0 15 16 6 3.5 3.3 16 14 6 3.1 3.1 17 13 6 ^8,9 3.6 18 18 6 1.9 3.8 19 IE 6 1.9 3.8 20 11 6.6 9.1 3.S 21 9.6 8.5 9.6 3.6 22 S.5 6.S s.e 3.9 23 8.5 4.7 5.3 2.9 24 8 4.0 3.1 3.4 25 S 3.7 3.3 4.4 26 e 3.6 2.9 7 27 7 3.6 2.9 7.5 28 6.6 4.1 2.8 6.S 29 6.S 3.9 8.7 6 30 7 3.7 S.6 5.5 31 - 8.3 8.7 - Second- Runoff In Month foot-days Maxima .-ini** Mean acre-feet October ftovnfbor December...... 0 0 0 0 0 Calendar year 194 3 ...... 580.5 10 0 1.60 1,160 0 February...... 1 0 Haroh...... '0 Apr! 1 0 0 0 0 May 0 0 0 9 Tme 1 a 7.12 *& July see August...... 151 September...... 113.1 7.5 2. S S.77 884 Water year 1948-43 ...... 583.2 18 0 1.60 1,160 Time baaiai Pacific war time. To convert w> time to standard tine, eubtsaet 1 how. SAN JUAN CREEK BASIN 35 San Juan Creek near San Juan Caplstrano, Calif. Location.- Hater-stage recorder, lat. 33°30'50", long. llVSV'^11 , In Mission Vie10 Qrant, at Ortega State Highway bridge, 2i miles east of San Juan Caplstrano, C-ange County. Altitude of gage, about 150 feet. Drainage area.- 110 square miles. Records available.- October 1928 to September 1943. Average discharge.- 15 years, 18.7 second-feet. ISctremeB.- Maximum discharge during year, 5,800 second-feet Jan. 23, by slope-aret method: ^Inlmum dally, 0.1 second-foot Oct. 3, 21-36. 1929-43: Maximum discharge, 13,000 second-feet Mar. 2, 1938, by slope-area method, determined by Corps of Engineers, U. 8. Army; no flow at times during most owners. Remarks.- Records fair except those for periods of no gage-height record, which are poor. Cooperation.- Fifty-eight discharge measurements furnished by Orange County Flood Control District, through A. A. Beard, flood-control engineer. Discharge, la second-feet, water year October 1942 to Septenber 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept, 1 0.3 0.4 1.3 8.8 128 104 62 27 9.5 2.8 al.8 1.2 2 .2 .4 1.3 8.6 98 84 58 27 .. 9 3.1 al,7 .9 3 .1 .6 1.3 8.3 74 151 53 25 9.5 2.8 al,6 .9 4 .2 .5 1.3 2.3 78 668 50 24 8.5 3.1 1.5 .9 5 ,3 .4 1.3 2.2 76 895 48 23 7 3.1 1.5 1.0 6 .3 .4 1.8 1.8 78 600 90 BE 6.5 2.8 1.3 liO 7 .3 .4 1.1 2.8 66 488 f84 24 a6.5 2.5 1.3 .9 8 .4 .4 1.0 3.5 96 995 80 23 a7 2.2 1.3 .9 9 .4 .4 .7 8.1 68 324 84 20 7 1.8 1.3 .7 10 .4 .3 .4 1.8 49 183 , 73 16 6.5 2.0 1.2 .7 11 .4 .7 .4 1.5 43 190 60 15 6 2.0 1.0 .7 12 .9 .6 .5 1.5 41 183 55 14 6 2.2 .9 a.7 13 .9 .5 .6 1.5 aS8 163 51 14 6.5 2.2 1.0 a.9 14 1.0 .4 .8 1.5 a3« a!40 47 13 6 2.2 .9 .9 15 1.0 .4 1.0 al.4 a34 a!20 44 12 5.5 2.2 1.8 .9 16 .7 .5 1.7 al.3 a3S a!04 44 13 5 2.0 1.5 a.9 17 .4 .5 8.8 al.8 30 91 40 U 5 2.2 1.3 al.O 18 .4 .4 .8 al.l 87 122 39 U 4.8 2.8 1.5 el.O 19 .3 .6 .7 al.O 18 78 37 11 4.8 2.8 2.2 al.l 20 .8 1.0 1.6 1.0 16 87 36 11 4.4 2.5 2.5 1.2 21 .1 .5 3.0 1.0 28 a5S 36 U 3.7 2.0 2.5 1.3 22 .1 .4 3.0 402 117 a98 32 11 3.7 1.5 2.5 1.2 23 .1 .5 3.2 f2,i20 328 a93 31 11 3.4 1.2 2.8 1.2 24 .1 1.1 3.0 379 290 88 29 11 3.4 1.3 1.5 al.2 26 .1 1.3 3.8 131 £90 84 «27 13 3.1 1.8 1.8 al.l 26 .1 1.5 2.8 145 256 78 a26 JT9.5 3.1 1.8 1.0 al.l 27 .2 1.3 2.3 216 208 73 a25 9.5 2.8 2.0 .9 al.O 28 .5 1.3 2.3 161 151 65 84 9.5 2.8 2.2 1.8 al.O 29 .7 1.3 2.8 131 68 27 9 2.8 a2.1 1.2 .9 30 .6 1.3 2.6 109 _ 62 29 9 2.8 a2.0 1.3 1.0 31 .6 2.6 187 - 63 - 9.5 - al.9 1.3 - Seoond- Runoff in Month foot-days Maximua Minima Mean Rcre-feet October . . U a 0 *J1 24 Oft Deoeaber...... 58.0 3.8 .4 1.68 103 Calendar year IMS ...... 922.7 17 .1 2.53 1,830 8 120 ana -4K3 1 March...... May June 8 a 383 69.1 August...... 8 a September...... 89.4 1.3 .7 .98 58 Water year 1948-43 ...... 14,844.1 8,120 .1 40.7 29,450 l9S*,dA«.SM??8e,t- Jan' 23 '6 » » ) BT eo° *--«:- 1 »««*>- 83 {2«30 a ,a>.) 660 see. -ft. i Bar. 5 (3 a.m.) a Wo gaga-height record} diecharge Interpolated or computed on baaia of recorda for near Ban Juaa Oapistrano and weather records. f Ooaputed on basis of partly estimated gage-neigit record. Tlae basis| Pacific war tine. To convert war tine to standard time, subtract 1 hour. 36 SAN JUAN CREEX BASIN Trabuco Creek near San Juan Caplstrano, Calif. Location.- Waters-stage re'corder, lat. 33°31'30", long. 117°40'15", In SWi sec. 25, T. 7 S., R. S W., on State highway bridge, 1J miles north of San Juan Caplstrano. Drainage area.- 36.5 square miles. Records available.- October 1930 to September 1943. Average discharge.- 13 years, 8.41 second-feet. Extremes.- Maximum discharge during year, 2,850 second-feet Jan. 23, by high-water survey, Igage nelght, 4.80 feet); no flow during part of year. 1930-43: Maximum discharge, 9,240- second-feet Feb. 6, 1937; no flow during part of each year. Cooperation.- Records furnished by Orange County Flood Control District, through A. A. Beara, riood control engineer. Discharge, ID second-feet, water year October 1948 tc September 1943 Day Oct. Nor. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0 0 0 21 18 28 16 1.1 2 0 0 0 21 IS 33 15 .9 f 3 0 0 .1 21 65 38 15 .9 Uo.03 4 0 0 S 21 133 43 14 .9 f 5 0 0 0 21 140 48 14 .9 f > eO.06 6 0 0 0 21 116 63 12 .9 7 0 0 0 21 116 27 11 .9 I oa 6 0 0 0 30 100 27 10 .9 V e.08 9 0 0 0 6 92 26 9 .9 10 0 0 0 3.0 84 26 7.5 .9 ' 11 0 0 0 6 SO 26 6.6 .9 .1 ) 12 0 0 0 6 69 26 6 .9 .1 ( 9.02 IS 0 0 0 7 56 24 4.8 .9 .1 } 14 0 0 0 8 60 24 4.4 .9 .1 0 15 0 0 0 9 43 24 4.1 .9 0 o" eO.06 16 0 0 11 37 23 3,7 .9 0 17 0 0 0 12 32 23 3.3 .8 0 18 0 0 0 12 69 . 82 2.9 .8 0 19 0 0 0 12 56 22 2.6 ,7 > *>&t o 20 0 0 & 12 48 82 8.4 .7 1 0 21 0 0 0 14 38 Si 8.3 .6 0 22 0 0 76 82 34 21 2.2 .6 0 23 0 16 911 118 S3 20 3.1 .4 0 24 3.6 0 71 84 39 20 2.1 .3 « 26 0 0 32 42 87 18 2.0 .2 0 26 0 0 32 18 86 19 1.9 1 ' 0 - 27 0 0 84 18 26 18 1.8 f e.02 0 28 0 0 24 18 24 18 1.6 > e.06 0 29 0 0 4.0 . 29 17 1,6 0 30 0 0 0 i 23 16 1.3 } 0 31 - 0 69 " 23 - 1.8 - *" Seoond- Runoff in Month foot-d&ys Maximum Minimum Mean acre-feet October...... 0 0 0 0 0 November...... 3.6 3.6 0. , .18 7,1 Decenber...... 16 15 0 .6 38 Calendar year 1942 ...... 191.7 16 0 .63 382 If 309* 3 911 0 48. 0 . 2,690 February ...... '..... 674.0 118 3,0 24.1 1,340 March...... 1,780 140 18 65.6 3,410 April...... 778 53 16 26.8 1,630 May...... 7...... 183.1 16 ' 1.2 6.91 363 Jaae...... 19.9 1.1 .66 39 July...... ,...... -v ...... 1.86 ^ .060 3.7 August ...... 1.79 .1 _ .068 3,6 Septwber...... 66 0 .019 1.1 Water year 1648.48 ...... 4,697.11 911 0 13,9 9,320 e Dally dladv-rge lets ttton 0>10 sec,-ft. . Time baal9i 'aeifle war tlow. To codrert -*mr tt«B t? standard tl*», subtract 1 hoar. ALISO GRESK BASIN 37' Allso Creek at El Toro, Calif. Location.- Water-stage recorder, lat. 33°37'15", long. 117°41'20n , in Canada d^ los Allsos Grant, on Second Street Bridge, at El Toro, Orange County. Altitude of gage, 440 feet. Drainage area.- 8.5 square miles. Records available.- October 1930 to September 1943. Average discharge.- 13 years, 1.16 second-feet. Extremes.- Maximum discharge during year, 942 second-feet Jan. 23 (gage height, 9.80 xeetj; no flow most of year. 1930-43: Maximum discharge, 1,950 second-feet Feb. 6, 1937; no flow BIOS': of each year. Cooperation.- Records furnished by Orange County Flood eontrol District, through A. A. Beara, riood control engineer. Discharge, in seoond-feet, water year October 1942 to September 1943 Dag Oct. MOT. Deo. Jan. Feb. Mar. Apr. May June July M*. Sept. I 0 0.1 0.9 0.2 2 0 .1 .9 1.0 3 0 .1 78 1.0 4 0 .1 23 2,0 5 0 0 S.6 5,0 6 0 0 2.0 4.0 - 7 0 0 1.0 .5 8 0 24 .5 .5 9 0 0 0 0 10 0 0 0 0 11 0 0 0 0 12 0 0 0 0 13 0 0 0 0 14 . 0 0 0 0 15 0 0 0 0 16 0 0 0 0 17 0 0 .3 0 18 0 " 0 .6 0 19 0 0 1.0 0 20 0 0 3.0 0 21 .0 14 4.0 0 22 223 124 4.0 0 23 285 8 4.0 0 24 .8 21 8 0 i 25 .5 .9 6 0 26 18 .9 8.0 0 27 IS .9 .2 0 28 0 .9 .2 0 29 0 «. .2 0 30 7 «. .2 0 31 49 - -.2 '- Seoond- Runoff in Month foot-days Maximum Minimum Mean acre-feet October...... 0 0 0 0 0 Movenber...... 0 0 0 0 0 December...... '.....,...... 0 0 0 0 0 Calendar year 1942 ...... 6.9 4.0 0 .02 14 January...... 607.0 285 0 19.6 1,200 February 195.0 124 0 6.96 387 Mar oh...... 148.6 78 0 4.79 296 April...... 12.2 4.0 0 .41 24 May...... 0 0 0 0 0 June...... 0 0 0 0 0 July...... 0 0 0 0 0 August ...... 0 0 0 0 0 0 0 0 0 0 Water year 1942-43 ...... 962.8 285 0 2.64 1,910 Tine basis; Paoifto ipar time. To convert -war time to standard time, subtract 1 hour. 38 SANTA ANA RIVER BASIN Santa Ana River near Mentone, Calif. Location.- Water-stage recorder, lat. 34Q06'40", long. llT^Oe'dO", In S»'t sec. 4, T.. 1 S., R. 2 W., near mouth of canyon, 0,4 mile upstream from Southern California Edison Co.'s Mentone power plant and 34 miles northeast of Mentone. Altitude of gage, about 1,900 feet. Auxiliary water-stage recorder at Oreenspot Bridge, 1 mile downstream. Drainage area.-* 189 square miles. Records available.- July 1896 to September 1943. Aver dls .- 45 years (1896-1909, 1910-15, 1916-43), 39.6 second-feet. "Average comDinea ai ~ ;e of Santa Ana River and canals, 42 years (1896-98, 1903-15, 1916-43), 93.1 second-feet. Extremes (river only).~ Maximum discharge during year, 4,230 second-feet Jan. 23 (gage neignt, 8 .BO reel;; no flow many days. 1896-43: Maximum discharge, 52,300 second-feet Mar. 2, 1938, by slope-area method; no flow at times In several years. Remarks.- Records good except for days of no gage-height record, which are fair. Storage at sear Valley Reservoir and diversions above station. Sum of discharge of river, Southern California Edison Co.'s canal, and Oreenspot pipe line near Mentone, Is given In table on following page. Diaoharge. in second-feet, .water year October 1948 to September 1848 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June Ju'v Aug. Sept. 1 0 0 15 40 35 53 7 l.S'1.4 0.6 0.6 2 0 0 18 55 51 50 7.5 .6 .6 3 0 0 10 51 38 88 7.5 1.4 .6 .6 4 0 0 alO 695 38 27 7.5 1.2 .6 .6 5 0 0 a9 1,150 36 84 7 1.2 .6 6 > eO.06 0 0 e.5 f598 56 25 6 1.8 .6 .5 0 0 e 254 56 19 5.5 1.0 .6 .5 I 0 0 14 180 90 17 5.6. 1.0 .6 .5 9 0 0 10 150 86 16 o .9 .6 .5 10 0 0 8.5 145 59 IS 5 .9 .6 .5 11' 0 0 7.5 140 46 18 5.5 .8 .6 .5 12 0 0 - 0 6 98 59 8.5 5 .7 .6 .5 13 0 0 0 4.8 88 54 8 4.8 .7 .6 .5 14 0 0 0 4.6 73 54 7.5 4.8 .6 .7 .5 15 0 0 0 4.4 65 56 7 3.6 .6 .6 .5 > eO.05 16 0 0 0 4.8. 62 34 9 2.4 .6 .6 .5 17 0 0 0 3.8 110 36 8.5 8.2 .6 .6 .4 18 0 0 0 4.0 208 38 8 1.9 .6 .6 .4 19 0 0 0 S.S 157 43 7 1.8 .7 .6 .4 20 0 0 0 S.8 145 45 6 1.8 .7 .6 .4 21 0 0 0 67 155 40 6 1.7 .7 .6 .4 22 0 0 589 408 151 45 5.6 1.6 .7 .6 .4 23 0 0 fl,730 f458 125 46 5.5 1.5 .7 .6 .4 24 0 0 f300 f806 115 48 5»6 1.4 .7 .6 .5 25 0 35 fl.48 125 115 48 5.5 l.S .6 .6 .5 26 0 4.0 81 f85 113 40 6 * 1.3 .6 .6 .6 27 0 8.8 147 f68 113 57 6 1.3 .6 .6 .5 28 " 0 .1 f75 48 117 37 6 1.5 .6 .6 .5 29 0 0 46 105 38 6 l.S .6 .6 .5 30 0 0 38 _ 111 36 6 l.S .6 .6 .4 31 - 0 86 - 69 - 7 - .6 .6 T Seoood- Runoff in Month foot-days tart. Minima Mean acre-fedt October...... 1.65 _ _ 0.660 5.1 November...... 65 ^ 0 .018 l.l1 December...... 41.3 55 0 1.33 88 Calendar year 1942 ...... 1,387.90 95 0 5.80 8,760 January...... 3,108 1,730 0 100 6*160 February 1*622*9 458 3.8 58.0 5,880 March...... 5,687 1,150 55 183 11,880 April...... 1,306 90 31 45.5 2,590 May...... 376.5 33 5.5 18.1 747 June ...... 111.2 1 7.5 1.5 S.71 881 July...... 25.1 1.4 .6 .81 50 August ...... JLOe to 17f .7 .6 .60 57 September...... 14.7 .6 .4 .49 89 Water year 1948-45 ...... 12,515.50 1,750 0 53.7 24,480 Peak discharge.- Jan. 25 (7 a.m.) 4,850 seo.-ft.j Feb. 82 (10 p.m.) 1,510 sec. -ft.} Mar. 5 (5 a.m.) a Ho gage-height record* discharge interpolated and compared wltb record at Ownapot bridge. e Dally discharge less than 0.1 second-foot. f. Computed on basis of partly estlnated gags-height record. Time basis: Pacific war tlae. to convert war tine to standard time, subtract 1 hour. SANTA Atft RIVER BASIN Combined discharge. In second-feat, of Santa Ana River and canals near Bentone, Calif., water year October 1942 to September 19« Day Oct. NOV. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 78 57 87 31 95 128 121 182 93 82 79 88 2 70 68 1° S3 84 123 119 119 94 77 86 86 3 70 68 67 53 79 136 180 117 94 88 82, 86 4 78 60 54 31 74 781 180 114 94 86 85 88 5 62 60 46 31 73 1,150 184 111 96 85 88 85 6 65 60 46 31 "" 70 598 144 110 98 87 87 76 7 68 57 41 31 66 348 144 106 98 90 90 76 8 65 64 41 28 78 268 178 104 90 65 87 88 9 60 57 46 38 68 838 174 100 89 88 88 84 10 66 60 44 37 64 831 147 95 86 88 82 86 11 68 68 46 37 66 228 134 95 88 88 86 84 12 68 68 46 32 64 183 127 94 91 87 87 84 13 68 68 46 34 66 167 188 98 89 85 90 78 14 65 SS 46 38 66 158 188 92 86 85 87 84 15 68 87 58 34 65 148 184 93 85 86 87 78 9«' 16 68 57 58 34 68 1BO 182 83 88 86 78 17 68 60 46 34 65 140 184 98 86 82 88 78 18 68 68 64 31 65 808 126 98 86 88 79 81 19 65 70 46 31 66 1B7 131 r Santa Ana River at E Street Bridge, near San Bernardlno, Cillf. Location.- Water-stage recorder, lat. 34°04'00", long. 117°17'45", In S=m Bernardlno Grant, at E Street Bridge, half a mile downstream from San Tlmoteo C.-eek, 1 mile up stream from Warm Creek, and 3 miles south of San Bernardlno, San Bernardlno County. Altitude of gage, about 970 feet. Records available^.- March 1939 to September 1943. Extremes.- Maximum discharge during year, 7,600 second-feet Jan. 23 (ga?e height, 6.50 reetj, from area-velocity relationship; no flow many days. 1939-43: Maximum discharge, that of Jan. 23, 1943; no flow many days each year. Remarks.- Records fair. Several diversions above station. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. Bay June JtOy Aug. Sept. 1 0.2 0.3 0.7 2.4 15 40 13 43 2.3 0.1 0 0.1 2 .2 .3 .S 2.3 16 35 12 39 2.6 .1 0 .1 3 .2 .3 .8 2.2 15 100 12 34 2.4 .1 0 .2 4 .3 .3 .7 2.2 15 1,070 12 28 2.5 0 0 .1 5 .3 .3 .7 2.1 14 1,82O 19 25 *.* 0 0 .2 6 .4 .3 .7 2.0 14 680 116 21 1.9 .1 0 .1 7 .4 .3 .8 1.9 14 260 124 IS 1.6 0 3 .1 8 .5 .3 .8 1.8 15 180 138 13 .9 .1 0 .1 9 .6 .2 .9 l.S 14 140 130 10 1.0 .1 0 .1 10 .5 .2 .9 1.7 13 130 103 6 1.2 .1 .1 .1 11 .4 .S .8 1.6 11 110 82 2.4 .7 .2 0 .1 12 .4 .2 .8 1.5 10 98 63 1.2 1.2 .2 0 .1 13 .3 .3 .8 1. 10 88 45 .2 1.2 .1 0 .1 14 .3 .3 .8 1. 10 74 34 .3 1.2 .1 0 .1 15, .2 .4 .8 1. 10 64 28 .2 .3 .1 0 .1 16 .2 .4 .9 1. 9 64 21 .2 .2 .1 0 .2 17 .2 .4 .8 1. 9 82 S3 .2 .1 .1 0 .2 18 .2 .4 .9 1. 9 130 26 .2 .1 .2 0 .2 19 .2 .5 .9 1.4 9 97 31 .2 .1 .2 0 .2 20 .2 .5 1.0 1.4 9 79 36 .1 .1 .2 0 .2 21 .2 .6 1.1 1.4 40 58 40 .1 .1 .2 0 .2 22 .2 .6 1.1 540 242 53 45 .1 .1 0 .1 .1 23 .2 .6 1.1 2,350 690 42 51 .1 .1 0 .1 .1 24 .2 .5 1.6 230 350 36 54 .1 .1 0 .1 .1 25 .2 .5 3.8 14 130 29 62 .1 .2 0 0 .2 26 .2 .5 2.4 30 80 21 67 .1 0 0 0 .3 2T .2 .5 3.3 60 60 18 62 .2 .1 0 0 .4 28 .3 .« 2.9 36 50 18 59 .6 0 0 0 .4 29 .3 .6 2.2 31 16 55 .8 .1 0 0 .4 30 .3 .6 2.3 25 _ 15 48 1.2 .2 0 0 .3 31 .3 - 2.3 20. - 14 - 1.9 - 0 0 Seoond- Runoff in Month f cot-days Maximum Minium Mean acre-feet October 8 8 0.5 0.£ 0.28 17 Moreaber...... IB!O . 6 .2I *UAO E4 Deceaber...... 40.4 3.8 .7 1.30 80 Calendar vnar 1 SAP ...... 1,010.4 47 0 2.77 2,000 Janu ary...... 3,378.1 2,350 1.4 109 6,690 Febrnarv...... I yOOOOOV 690 9 67.8 3,730 «pqt March. ."...... ,... 5,661 1 IS20 14 JLOO 11,230 April...... 1,611 X.3Q 12 5S.7 3, £00 May...... 247.5 43 .1 41 V»98 491 June ...... S4.7 2*6 0 $J5oo July...... 2.4 .2 0 *uono 4*8 August...... 4 . .1 0 .01 10' 8 September...... 5.2 .4 .1 .17 Water year 1942-43 ...... v ...... 12,868.5 2,360 0 3S.3 25,630 gey}.-,- »° S*ge-h»ig&t record Oct. 3-8, Jan. 6, t f 9-13, Hay 19-22, and Indefinite *taae-dl>eb&rKe elation Jan. 22 to M%r. 18j discharge Interpolated or computed on basis of 13 eiaoharge meauure- ento, one engineer'« field estimate of flow, and records for other stations in the baej.ii. Tlma baaiq; Pacific war time. To convert war time to standard tine, subtract 1 hour. SfeHTA AM RCTffi BASIN 41 S&nta Ana Riper at Riverside Narrows, near Arlington, Calif. Location.- Hater-stage recorder, lat. 33°58'OO", long. IIV^'SO", in Jurupa Srant, half a mile downstream from Union Pacific Railroad bridge and 3 miles nortb of Arlington, Riverside County. Altitudft of gage, about 890 feet. Records available.- January 1989 to September 1943. Average discharge.- 13 years (1989-37, 1938-43), 60.5 second-feet. Extremes.- Maximum discharge during year, 18,400 second-feet Jan. 23 (gage height, 15.-1 feetjr minimum dally, 24 seeond-feet Sept. 8. 1929-43: mxtMm discharge, 100,000 second-feet Ifer. 2, 1938, by slope-area method; minimum, 20 second-feet Aug. 3, 1937. Remarks.- Records fair except those for periods of doubtful or no gage-height record, which are poor. Several diversions above station. Discharge, in second-feet, water year October 1942 to September 1943 Daj Oct. HOT. Dec. Jan. Feb. Mar. Apr. May June July Ar«. Sept. 1 55 41 39 41 187 170 141 145 36 27 30 86 2 33 37 39 45 120 140 150 128 36 28 36 86 3 50 35 43 39 110 260 150 105 36 32 33 26 4 33 35 45 37 100 f2,810 175 88 36 29 32 88 5 32 39 46 37 96 f2,830 227 74 55 29 31 27 6 28 35 43 39 92 1,050 438 64 36 51 31 88 7 32 33 43 59 90 650 516 56 35 89 32 SB 8 33 33 45 39 200 430 S35 54 35 31 31 24 9 28 53 49 59 150 400 380 52 36 27 SO 28 10 30 32 49 43 120 380 286 52 55 31 30 30 11 30 32 41 41 114 368 285 62 35 53 29 32 12 52 53 39 39 188 280 290 ' 52 34 32 28 32 13 30 35 39 59 167 300 258 52 36 31 25 34 14 26 36 41 39 150 238 191 52 38 36 27 33 15 SB 37 41 43 128 215 187 50 38 32 28 32 16 26 57 59 43 125 215 238 48 57 39 27 31 17 28 37 39 45 141 238 207 46 56 33 27 32 18 30 37 39 43 116 316 199 45 54 33 30 32 19 32 41 39 43 108 533 199 44 . 53 34 28 30 20 28 41 37 43 102 290 187 42 35 51 27 31 21 37 41 39 43 324 246 160 40 34 27 28 32 22 43 41 41 ms 655 225 147 40 36 25 28 29 23 39 41 41 6,840 fl,680 159 169 59 51 28 28 28 24 57 41 47 600 750 163 167 59 28 28 28 27 25 39 41 60 310 380 159 200 39 29 25 27 29 26 53 40 43 126 320 156 MO 38 29 28 27 31 27 53 40 41 320 240 144 190 38 32 28 25 31 28 39 40 43 260 200 147 180 38 25 50 27 31 29 57 40 47 200 _ 131 170 37 28 26 29 55 SO 43 39 45 160 _ 150 172 37 28 52 28 36 31 41 - 43 140 - 156 - 57 - 33 27 - Seoond- Runoff in Month foot-days Maximum Mininum Mean acre- foot 1,025 43 . 26 33.1 2,030 41 32 37.4 2,230 December...... 1,324 60 37 48.7 2,630 Calendar year 1942 ...... 18,392 199 23 50.4 36,470 6,840 37 348 21,420 February 90 263 14,030 13,729 2,850 131 443 27,230 438 141 218 12,990 IfL 1,717 145 37 55.4 3,410 1,009 38 25 33.6 2,000 938 39 25 50.3 1,860 893 25 28.8 1,770 September...... 899 36 24 50.0 1,780 Water year 1942-43 ...... 47,077 6,840 24 129 95,380 f Computed on the basis of partly estimated gage height record. Note.- No gage-height record NOT. 21-30, Jan. 19-21, Jan. 24 to Feb. 11, Feb. 24 to Ma-*. 3, Mar. 6-10,-Hay 3-7, Kay 9-10, June 5, 4, and doubtful gage-height record Apr. 25 to May 2, Ma7 8, Hay 11 to June 2, June 5-10; discharge computed on basis of 18 discharge measurements, records for stations at San Bemardlno, Hamaer Avenue, Auburndale Bridge, below Prado Dam, Warm Creek near Co"1 ton, and weather records. Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour. 42 SANTA ANA RIVER BASIN Santa Ana River at Hamner Avenue, near Corona, Calif. Location.- Water-stage recorder, lat. 33°56'50", long. 117033'30", In Jurupa Grant, at Hamner Avenue and 5 miles north of Corona, Riverside County. Altitude of aaKe. about 570 feet (from topographic map). Records available.- May 1930 to November 1943 (Irrigation seasons only). Remarks.- Records fair. Cooperation.- Sixteen discharge measurements furnished by Orange County Flood Control District, through A. A. Beard. Discharge, In second-feet, May to Hovenber 1943 1*9 nay June July Aug. Sept. Oct. MOT. 1 146 36 30 82 87 31 59 2 ISO 33 87 21 30 33 57 3 188 37 87 22 88 34 53 4 130 31 88 87 30 31 43 5 lie 36 88 27 88 28 43 6 100 S3 87 81 31 30 50 7 80 37 84 21 30 37 46 8 80 34 24 22 31 44 48 9 76 39 87 22 31 44 58 10 69 37 87 24 30 53 48 11 . 57 33 84 87 as 53 44 12 56 31 84 28 88 53 41 13 52 37 27 30 31 57 44 14 50 34 88 31 31 57 37 15 48 39 87 33 36 63 46 16 46 37 28 88 34 68 41 17 a45 a37 36 30 S3 78 46 18 a43 36 33 28 36 78 S3 19 a41 a34 35 8S 31 80 53 20 a39 a33 33 8S 31 72 46 21 37 32 33 31 36 78 48 22 41 a31 27 S3 34 88 41 23 34 8S 85 31 31 74 57 24 37 88 84 88 31 68 57 28 37 84 24 31 S3 68 48 26 34 87 24 se 36 65 44 27 37 88 85 81 33 78 58 28 37 30 84 88 36 67 50 29 41 31 19 84 S3 78 55 30 37 88 80 84 34 70 58 31 37 - 88 84 70 Honfch Second- Maximum Minimum Heart Runoff in foot-days acre- feet May ...... 1 , 947 146 34 68.8 3,860 June...... 991 39 84 33.0 1,870 July...... , 829 36 19 26.7 1,640 33 81 26. 4 1,680 36 87 31.7 1,800 October...... 1,798 88 S3 58.0 3,670 59 37 48.S 2,880 The period...... '...... - - - - 17,430 a No gage-height record; discharge Interpolated or computed on basis of receive of other Santa \na River stations. Pacific war tine. To convert war tine to standard tine, subtract 1 hour. . SfcMTA ANft. RIVER BASIN < Santa Ana River at Auburndale Bridge, near Corona, Calif. Location.- Vbter-stage recorder, lat. 33°55'30", long. 117°35'40*. In Jurupa Grant, at Auburndale Bridge, 4 miles northwest of corona, Riverside County, Records available.- May 1930 to November 1943 (Irrigation seasons only). . . RemarKs.- Records fair. Discharge, in second-feet. May to iroT«mber 194* Daj Hay June July Augx S^rt. Oct. HOT. ^ 1 113 65 49 43 41 46 76 2 111 55 48 39 41 49 74 3 98 , 60 46 41 41 49 66 * 4 98 S3 44 45 45 49 62 S 87 46 44 43 43 48 67 6 93 44 43 41 41 61 63 7 89 49 41 37 43 57 56 8 85 49 43 39 46 67 66 9 76 61 43 39 41 64 60 10 87 49 43 41 43 64 49 11 74 67 44 43 46 64 66 12 68 66 44 44 46 70 49 13 08 60 46 46 46 76 44 14 66 64 46 45 46 77 51 15 64 65 46 46 46 77 68 16 66 a64 46 44 46 79 61 17 66 a68 46 44 46 77 48 18 64 a BO 49 44 46 86 66 19 64 a 49 46 46 43 93 66 20 60 a47 49 44 41 91 67 21 60 a 46 48 46 41 87 67 22 63 44 44 44 43 93 66 - 23 63 46 45 44 39 91 60 24 65 46 45 43 43 86 64. 26 57 46 44 46 43 89 60 26 67 63 44 44 43 79 66 27 68 63 46 46 43 83 53 28 60 48 43 46 44 SI 67 29 81 46 41 46 46 83 67 30 48 45 43 43 44 79 66 31 49 41 43 - 76 - Seoond- _ Runoff In Month foot-days Maximum Minium **** acre-feet »ar: .-.;...... -...... -...... 2.1SB 113 48 70.9 4,360 JUIM 1,620 64 44 60.7 3,010 July...... 1,386 49 41 44.7 - 2,760 JtaKUBt...... 1,339 46 57 43.2 2,660 S*ptsober. 1,897 46 39 43.2 2.670 Octo 2,249 93 46 72.5 4,460 1,70? 76 44 56.8 3,380 M 23,190 a Ho gage-height record; discharge Interpolated or computed on basis of records for other Santa ' Ana River stations. Tine basis: Pacific war time. To convert war tine to standard time, subtract 1 hour. 44 SANTA AM RIVER BASIN Santa Ana River below Prado Dam, near Prado, Calif. Location.- Water-stage recorder, lat. 33°53'00", long. 117°38'30", In La Sierra Grant, nair a mile downstream from Prado Dam, and 1 mile southwest of Prado, Riverside County. Altitude of gage, about 450 feet. Records available.- March 1940 to September 1943. January 1919 to Novemter 1942 (only irrigation seasons 1941, 1942) at site 2i miles downstream, published as Santa Ana River near Prado. Average discharge.- 24 years (1919-43), 150 second-feet. Extremes.- Tja-gtimim discharge during year, 1,390 second-feet Jan. 24 (gage height, 3.05 reetj; minimum dally, 48 second-feet Aug. 18. 1940-43: Maximum discharge, 2,260 second-feet (regulated) Dec. 24, 1940 (gage height, 3.20 feet); minimum daily, 38 second-feet July 24-26, Aug. 7, 8, 11, IS, 1940. Remarks.- Records good above 500 second-feet, fair below. Diversions and regulation above station. Discharge less than 1,850 second-feet passes unrestricted through ungated openings of Prado flood-control dam. » Cooperation.- Thirty-six discharge measurements furnished by Corps of Engineers, u. S. Array; twenty furnished by Orange County Flood Control District, through A. A. Beard, flood control engineer. Discharge, in second-feet, water year October 1942 tc Septemberl943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 65 S3 89 116 414 237 192 171 78 a<50 57 57 2 66 S3 91 114 240 223 208 157 79 aSO 57 57 3 68 83 95 116 248 296 200 157 81 a<50 54 57 70 86 99 216 157 78 859 57 60 4 112 840 1,400 a-59 5 67 34 101 105 232 1,800 232 150 74 57 57 519 126 73 a 58 54 57 6 68 37 101 99 200 1,850 a">7 7 71 81 101 99 171 1,780 413 114 73 50 57 8 68 36 99 95 310 1,700 370 104 71 a 58 51 54 a 70 91 99 99 262 1,610 457 82 71 a 59 f51 55 10 68 84 10L 106 192 1,470 360 87 73 a60 f51 55 11 70 83 101 108 171 1,260 308 87 71 a Calendar year 1942 ...... 36,538 382 43 100 72 , w48Ov January...... 17,057 1.800 95 ' 550 33,830 February...... 9,899 1,390 150 354 19,630 March...... 19,946 1,850 200 643 39,560 April...... 7,709 519 135 257 15,890 May...... 2,913 171 68 94.0 5,780 June . .... i...... 2,029 81 59 67.6 4,02O July 1,771 62 50 57.1 3,510 August ...... 1,670 59 48 53.9 3,310 September...... 1,769 72 53 69.0 3,510 Water year 1942-43 ...... 72,949 1,350 48 200 144,700 a No gage-height record; discharge interpolated or computed on basis of six discharge measurements and records for stations at Riverside Harrows, Hammer Avenue, and Auburndale Bridge. d Doubtful gage-height record; discharge computed on basis of records for station at RlTerside Harrows. f Computed on basis of partly estimated gage-height record. Time basist Pacific war time. To convert war time tc standard time, subtract 1 hour. SANTA ANA RIVER BASIN 45 Santa Ana River at Santa Ana, Calif. Location.- Water-stage recorder, lat. 33045'00", long. 117°54'20", In Las Bolsas Grant, an eignth of a ralle upstream from Fifth Street Bridge In Santa Ana, Orange County, and 2 miles downstream from Santiago creek. Altitude of gage, abouf 80 fert. Auxil iary water-stage recorder en opposite bank. Records available.- January 1923 to September 1943. Average discharge.- 20 years, 30.2 second-feet. Extremes.- Maximum discharge Curing year, 4,400 second-feet Jan. 23 (gage height, 2.56 reet) computed on basis of records for Santa Ana River below Prado Dam and'Santiago Creek at Santa Ana; no flow for several months. 1923-43: Maximum discharge, 46,300 second-feet Mar. 3, 1938 (gage height, 10.20 feet), by slope-area method; no flow for several months each year. Remarks.- Records poor. During Irrigation season, canal of Anahelm Union Water Co. and canal of Santa Ana Valley irrigation Co. divert entire flow of river at points near Olive: 22 and 26 miles, respectively, above station. Flow also regulated by storage 'and other diversions. Cooperation.- Nineteen discharge measurements and one field estimate of flow furnished by orange County Flood Control District, through A. A. Beard, flood-control engineer. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. I 0 150 103 20 7 Z 0 40 95 14 1.0 3 0 f!7 260 14 2.0 4 0 8 2,300 13 10 5 0 2.S 1,980 12 8 6 0 1.5 1,860 64 4.0 7 0 1.5 1,600 20 4.0 S 0 28 1,400 S 5 9 0 76 1,300 7 7 10 0 48 1,100 6.5 9. 11 / o 34 900 6 S 12 0 14 f660 5.5 1.2 IS 0 10 fl50 6 .5 14 0 5 110 6.5 .2 15 0 f4.6 70 11 .2 16 0 f5 65 12 .1 T 17 0 f6 76 10 .1 1R 0 f8 103 10 .1 19 0 10 92 6.5 .1 20 0 no SO 5.5 .1 ?.l 0 38 68 6.5 .1 22 628 780 55 9 0 23 8,350 1,300 52 6.5 0 1,470 1,500 51 10 0 26 1,280 1,000 50 21 0 26 1,150 f850 76 4.0 0 *t 1,100 190 72 5 . 0 28 1,000 110 76 4.0 0 29 980 90 7 0 30 900 SO 9 0 31 73O 30 ~ 0 Second- Runoff in Month foot-days Maximun Minimum Mean E^P re-feet 0 0 0 0 0 0 0 , 0 December...... 0 0 0 0 0 Calendar year 1942 ...... 71.9 15 0 .20 143 11,588 2,350 o 374 22,980 Febr 5,647.4 1,500 1.5 202 11,200 llaro 15,004 2,300 30 484 29,760 339.5 64 4.0 11.3 673 May...... 67.7 10 O 2. IP 134 O 0 0 0 0 July...... 0 0 0 0 0 Augu St...... 0 0 0 0 0 September...... 0 * 0 0 O 0 Water year 1942-43 ...... 32,646.6 2,350 0 89.4 64,750 Peak discharge.- Jan. 23 (6r30 a.m.) 4,400 aec.-ft.j Feb. 22 (9:30 p.m.) 2,600 Beo.-ft.: Mar. 4 (S a.m.) 3,200 sec.-ft. f Computed on basia of partly estimated gage-height record. Bote.- Ho gage-height record Feb. 1-2, and doubtful gage-height record Jan. 22-31, Feb. 22 to Mar. 14, Mar. 16, Mar. 20 to Apr. 1, Apr. 7-11, 13-15, Apr. 29 to May 6, Hay 9. 13-21; discharge computed on basis of 17 discharge measurementa, one engineer1 s field estimate of flow, one observation of no flow, and records for atatlon below Prado Dam and Santiago Creek at Santa Ana. Time basis: Pacific war time. To convert war time to standard tijne, subtract 1 hour. 46 SANTA AM. RIVER BASIN Southern California Edison co.'s canal and Qreenspot pipe line near Mertone, Calif. Location.- At Southern California Edison Co.'s power plant at mouth of caryon, lat. S4°06'20", long. l^OB'BB", In SWj sec. 4, T. 1 S., R. 2 W., 3 miles northeast of Mentone. Records available.- 1896 to September 1943. Average discharge.- Southern California Edison Co.'s canal, 41 years (1896-98, 1904-43), 51.7 secona-reet. Qreenspot pipe line, 32 years (1911-43), 5.82 secomf-feet. Extremes.- 1896-1943: Maximum dally canal discharge, 97 second-feet Mar. 16, 1905; no now during short periods In nearly every year. Remarks.- Intake of canal Is In sec. 34, T. 1 N., R. 2 W., at Southern California Edison co.'s power plant 2, which Is 2t miles above Mentone plant. Water Is diverted from torebay of Mentone plant by Qreenspot pipe line. Records for canal represent flow below forebay as computed from record tit kilowatt output of power plant. Records for pipe line represent diversion from forebay as computed from weir record at forebay. Sum of records given In following tables represents total flow of cana] above forebay. Discharge, in second-feet, of Southern Califoral* Bdiaon OO.'B canal near HOT tone, Calif., water year October 1648 to September 1943. Das Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 69 48 48 27 76 83 83 80 77 72 69 78 2 61 59 51 29 67 83 83 80 77 67 76 76 3 61 53 48 29 64 80 83 80 77 78 78 76 4 64 51 45 27 69 83 83 80 77 75 75 72 5 59 51 37 27 69 0 83 80 80 75 75 75 6 56 51 37 27 56 0 83 80 77 77 77 67 1 59 48 38 27 59 83 83 80 77 80 80 67 8 66 46 38 24 59 83 83 80 75 75 77 72 9 51 48 37 27 3 83 83 77 75 72 72 75 10 59 51 35 32 51 83 83 76 72 72 72 77 11 59 59 37 32 59 85 83 75 72 72 75 75 12 5ft 59 37 27 53 80 83 77 75 77 77 75 13 53 59 37 29 56 80 83 75 75 75 80 69 14 56 59 37 27 56 80 '8383 75 72 75 77 75 15 59 48 43 29 56 80 77 72 75 77 69 16 53 48 43 29 69 83 83 80 72 72 75 69 17 59 51 37 29 56 28 83 80 75 72 72 69 If) 58 53 45 26 56 0 83 80 75 72 68 72 19 56 61 37 26 56 0 83 80 80 aa 78 72 20 48 45 38 26 56 0 88 77 80 72 72 76 21 53 37 32 16 80 0 83 77 76 69 77 72- 27, 55 43 38 67 75 0 83 77 72 69 76 72 23 48 45 86 0 31 -0 83 77 72 69 IB 75 24 56 48 35 0 83 0 83 77 72 69 76 75 25 51 43 35 0 75 0 83 77 69 67 69 76 26 59 45 35 40 83 0 83 61 67 60 60 67 27 59 51 52 80 83 0 83 77 67 69 77 91 28 61 48 38 67 83 0 83 77 75 07 78 67 29 56 48 27 77 0 83 77 76 07 69 89 30 , 61 48 29 77 _ 0 83 77 72 75 67 187 31 59 29 75 - 0 - 77 - 72 69 ~ Second- Runoff in Month foot-days Maximun Minima r»«j» »o re-feet 4£ Deoeaber ...... 1,140 51 27 36.8 8,260 Calendar year 3,942 ...... 20,486 77 0 56.1 40,620 January . . B AOft 1 *7Afi April ...... g j&n 83 May...... ,...... :...... 2 399 li 8 4>QO 1 *74. X 67 O Qff} September ...... 2,147 77 61 71.6 4,260 ' Rater year 1948-43 ...... 22,130 83 0 60.6 43,690 SANTA ANA RIVER BASIN 47 Discharge, in second-feet, of Sreenspot pipe Una near Mentone, water year October 1948 to September 1943 Da* Dot. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aut Sent. 1 9 9 9 4.0 5 5 5 9 9 9 9 g 2 g 9 9 4.0 5 5 5, 9 9 9 9 9 3 g 9 9 4.0 5 S S 9 9 9 9 9 4 g 9 9 4.0 5 5 5 7 9 9 9 5 9 9 9 4.0 5 0 5 7 9 9 9 6 9 9 9 4.0 5 0 5 7 9 9 9 9 7 e 9 9 4.0 5 5 S 7 9 9 9 9 8 9 9 9 4.0 5 5 5 7 9 9 9 9 9 9 4.5 5 5 5 "7 9 9 9 9 10 9 9 9 6 5 5 5 7 9 9 9 9 11 9 9 9 5 5 5 5 8 10 9 9 9 12 9 9 9 5 5 5 6 9 11 9 9 9 13 9 9 9 5 5 5 S 9 9 9 9 9 14 9 9 9 5 S 5 S 9 9 9 9 9 15 9 9 9 5 6 5 5 9 9 9 9 9 16 9 9 9 5 5 5 S 10 9 9 9 ' 9 17 £ 9 9 5 5 2.5 5 10 9 9 9 9 16 9 9 9 5 5 0 8 10 9 9 9 9 19 9 9 9 5 5 0 5 10 9 9 9 9 20 9 9 9 5 5 0 5 10 9 9 9 9 21 9 9 9 5 5 0 5 10 9 9 9 9 22 £ 9 9 5 4.6 0 5 10 9 9 9 9 23 ( 9 9 5 1.9 0 5 10 9 9 9 9 24 E 9 6.6 0 5 0 .5 10 9 9 9 9 25 9 9 4.0 0 5 0 5 10 9 9 9 9 26 9 9 4.0 5 5 0 5 10 9 9 9 9 27 9 9 4.0 5 5 0 S 10 9 9 9 9 28 g 9 4.0 5 5 0 S 10 9 9 9 9 39 S 9 4.0 & _ 0 5 10 9 9 9 9 30 9 0 4.0 5 - 0 7 10 9 9 9 9 31 9 - 4.0 S . 0 - 10 - 9 9 " Second- Rnaof f in Month foot-days Maximum Minimum Mean acre-feet October 279 9 9 9.0 583 November...... 270 9 9 9.0 636 December...... 241.5 9 4.0 7.79 479 Calendar year 1942 ...... 2,631.8 9 0 7.21 6,220 Jan 136.5 6 0 4.40 871 Febnianr...... 136.5 5 1.9 4.68 871 March...... 78.5 S 0 2.34 144 April ...... 152 7 S 5.1 SOI May...... 1...... 10 7 9.0 555 273 11 9. 9.1 541 July...... 9 9 9.0 565 879 9 9 9.0 663 September...... 270 9 9 9.0 536 Water year 1942-43 ...... 2,669.0 11 0 7.31 5,890 PaoTfio war time.To convert war tine to standard time, subtract 1 hour. 48 SANTA ANA. RIVER BASIS mil Creek near Ifeirtone, Calif. Location.- Water-stage recorder and concrete broad-crested weir control, lat. 34005'10", long. 117°06'55*, In SEiNWi sec. 17, T. 1 S., R. 2 W., at Bear Valley pipe line cross ing, a quarter of a mile upstream from Santa Ana River, lit miles northeast of Ifentone, and 5 miles southeast of East Highlands. Altitude of gage, about 1,780 feet. Records available.- February 1939 to September 1943. Extremes.- Maximum discharge during year, 355 second-feet Jan.'23 (gage height, 5.75 feetJ; no flow at times during sunnier. 1939-43: Maximum discharge, 900 second-feet (estimated) Sept. 25, 1939; no flow during several periods each year. Remarks.- Records fair. Mill .Creek power canals 1, 2, and 3 divert above station. Discharge, In second-feet, water year October 1942 to September 1945 Day Oct. Nor. Dec. dan. Feb. Mar. Apr. Hay June July Aug. Sept. « 1 0.1 0.1 0.5 0.2 0.5 2.0 6 42 1.2 0.1 0 2 .1 .2 .3 .2 .5 2.0 6.6 41 1.1 0 0 3 .2 .2 .2 .2 .4 3.0 9 36 .8 0 .1 4 .1 .3 .1 .2 .4 97 12 32 .7 .1 .1 5 .1 .2 .2 .2 .4 123 18 32 2.2 .1 .1 6 .1 .1 .5 .3 .3 91 32 30 5 0 .1 7 .3 ..1 .4 .2 .2 100 26 28 3.6 0 .1 8 .2 .1 .5 .2 1.7 SO 29 27 .5 .2 .1 9 .2 .2 .2 .2 .6 66 27 26 .5 .2 .2 10 .1 .1 .2 .2 .5 54 23 go .5 .2 .1 11 .1 .3 .3 .2 .4 42 20 17 .6 .1 .1 12 .1 .5 .3 .2 .4 36 16 15 .4 0 .1 13 .1 .2 .S .2 .4 29 17 14 .3 .1 .2 14 .2 .3 .2 .2 .3 25 15 13 .3 .1 .2 16 .1 .2 .2 .3 .6 22 14 12 .3 .1 0 eO.08 16 .1 .1 .2 .4 .6 21 14 11 .2 .1 .1 17 .1 .1 .2 .5 .5 20 14 13 .2 .3 18 .1 .4 .2 .3 .4 43 IS 12 .2 .1 19 .1 .1 .2 .2 .4 25 21 9 .2 .1 20 .1 .1 .2 .2 .4 22 22 4.6 .2 > 8.04 .1 '.2 21 .1 .1 .2 12 19 23 3.2 .1 0 22 .1 .1 .2 89 64 16 30 2.4 .1 .1 23 .2 .1 .2 f95 62 13 36 1.2 .1 .1 .1 24 .1 ' .1,1 .3 f22 45 10 37 1.4 .1 .3 .3 25 .1 .4 .9 20 8 42 1.9 .1 .1 .1 26 .1 .1 .1 5.6 8 7 41 1.7 .2 .1 .1 27 .3 .2 .1 14 3.0 6.5 36 1.3 .2 .1 .1 28 .3 .2 .2 9 2.5 8.5 38 1.1 .% .3 .1 ,29 .6 .3 .2 1.8 _ 11 41 1.1 .2 .2 .1 30 .2 .3 .2 .5 _ 7.5 44 2.7 .2 .1 .1 31 .1 - .2 .5 - 7.5 - 4.8 - .1 Seoond- Runoff in Month , foot-daye Maximum Minimum Mean . ao re-feet qr October...... 4.7 0.5 0.1 0.16 9 »O November 5.5 .8 .1 .18 11 December...... 7.7 .5 .1 .25 16 Calendar year 1942 ...... 76.60 6 . .210 162 (MS January* ... * 244.2 96 .2 7 CH9 484 February...... 206*2 54 2~.0 2 7.36 409 March...... 1,014.0 X0OIGrt 32 » 7 2,010 April...... 729.5 44 6 24*5 1,460 low - 1 A ft Key...... 469.4 42 1.1 J.4*O 911 June ...... 20.4 6 .1 *6S 40 July...... 2*48 08 4*9 August...... 3! 04 .3 0 098 &*0 September...... 3.3 .3 0 .11 6.6 Water year 1942-43 ...... 2,700.42 123 0 7.40 5,360 Peak dischargel- Jan. 23 (7 a.m.) 365 aee.-ft.z Jan. 26 (9 a.m.) 61 aeo.-ft.I Etb. S3 (1 a.m.) 160 seo.-ft.j Mar. 5 (4:30 a.m.) 187 aeo.-ft. e Dally discharge leas than 0.1 second-foot. f Computed on basis of partly estimated gage-height record. Mote.- No gage-height record Jan. 20-22, Feb. 10-14, Feb. 2E to Mar. 3, Mar. 8-18, 20-26, May 13-15, Aug. 1-3, and doubtful gage-height record July 1-31; die char go computed , Mill Creek power canals 2 and 3 near Craftonville, Calif. Location.- Weir In tailrace of Southern California Edison Co.'s power plant, lat. 3?*TOr10'1 , long. 117002'25n , in NEi sec. 13, T. 1 S., R. 2 W., near Redlands-Bear Valley highway, 5 miles northeast of craftonville. Records available.- January 1919 to September 1943. Average discharge.- 24 years, 21.5 second-feet. Extremes.- 1919-43: Maximum aaily discharge, 36 second-feet Nov. 19, 1923, Jure 7, 19E4; no flow my 27, 1923, Feb. 14, 1937, Mar. 3 to June 23, Aug. 7, 3, 1938, Sept. 26, 1939, Jan. 8, 1940, Jan. 23, 1943. Remarks. - Discharge computed from weir records at tailrace of power plant. Mill Creek power canal 2 diverts from Mill Creek in sec. 8, T. 1 S., R. 1 W.; power canal 3 diverts in sec. 13, T. IS*, R. 1W., 3 miles above intake for canal 2. The canals serve power plants. 2 and 3, which discharge into a common tailrace. At times entire flow of tailraee is distributed for Irrigation and domestic supply. Cooperation.- Records furnished by Southern California Edison Co. Discharge, in seoond-feet, water year October 1948 to September 194S Day Oot. Hov. Dec. Jan. Feb. Mar. Apr. May June July Aan. Sept. 1 17 17 16 12 21 31 31 32 32 31 31 26 2 1? 16 16 12 SO 32 31 31 SS 31 31 25 3 17 16 16 12 20 31 31 32 32 31 31 26 4 1? 16 16 11 20 18 31 32 32 31 31 27 8 17 17 16 11 20 2.2 31 32 32 SI1 31 25 e 17 17 16 11 22 17 30 32 31 31 31 85 7 17 17 18 11 23 B4 31 32 31 31 30 25 e 1 17 16 16 11 2(3 32 31 32 si 31 30 25 9 17 16 16 11 28 51 88 31 31 31 SO SB 10 17 16 16 11 20 32 31 32 32 31 29 26 11 17 16 16 11 32 31 31 33 S2 31 28 26 12 19 16 16 11 23 31 31 26 32 31 as 25 13 16 16 16 13 34 $1 31 S3 32 31 27 25 14 18 16 16 14 26 31 32 38 38 31 27 25 16 17 16 16 14 26 31 32 33 38 31 26 25 10 17 16 16 14 37 31 33 SS SS 81 27 SS 17 17 16 16 IS 2? 31 33 32 58 31 26 BS IS 17 16 16 15 86 SB 33 32 se 31 SS 26 19 17 IS 14 12 26 32 $3 32 32 51 B6 84 20 16 17 11 12 27 32 33 38 32 31 26 84 81 16 17 11 15 20 31 S3 38 31 31 28 84 £2 16 16 11 94 17 31 31 32 31 89 27 84 23 16 16 11 o 25 31 33 38 31 29 26 34 84 . 16 16 IS 7.5 25 31 31 SS 31 30 25 36 25 16 16 SO 12 28 31 51 S3 31 31 86 25 26 16 16 IS 11 27 31 33 33 31 31 24 25 27 16 16 14 18 27 31 32 SB Si 32 24 25 88 17 16 13 10 29 31 32 38 SI 31 E5 25 29 17 16 13 31 31 31 32 31 31 26 25 30 17 16 IS 23 .. 31 31 32 31 31 S6 34 31 17 13 88 * 31 38 31 26 Second- ,. fatter f in Month toot-days aximuB Minima *eMl aertM-feet October...... Bgg 19 16 16.9 1,040 November...... 48S 10 16 1S.3 . 963 December ...... 458 80 11 14.8 * 908 Calendar year 1942 ...... 8,340 32 11 32. 8 16,660 January...... 412.5 24 0 15.5 318 February...... 686 &9 17 23.8 1,330 March CSV**KQA. c& 32 2.2 88. 6 1,176' Q& toril...... 944 88 OO 81. B 1,870 Ky...... 389 33 28 31.9 1,940 June...... 946 32 31 81. 6 1,080 July...... 857 32 29 30.9 l,90fr August...... 854 31 24 87.3 1,690 September ...... 750 S7 24 86.0 1,490 Water year 1942-45 ...... 8,881.7 33 0 24.8 17,610 Pacific war time, fo eoiWert war time to standard time, subtract 1 hour* 50 SANTA ANA. RIVER BASIN Mill Creek power cannl 1 near Craftonvllle, Calif. Location.- Water-stage recorder and weir control, iat. S4005'1011 , long. 117002'25II > In NEi sec. 13, T. IS., R. 2 W., a quarter of a mile downstream from point of diversion from Mill Creek and 5 miles northeast of Craftonvllle. Records available.- January 1919 to September 1943. Average discharge.- 24 years, 2.98 second-feet. Extremes.- 1919-43: Maximum dally discharge, 29 second-feet Apr. 21, ?.2, 1932; no flow ror several days most years. Remarks.- Records good. Discharge determined by weir formula. This c?.nal diverts from Hill Creek In NEi sec. 13, T. 1 S., R. 2 W., above station on Mill Creek near Mentone. After passing through Mill Creek powerhouse 1, entire flow Is at times distributed for Irrigation and domestic supply. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June Jily Aug. Sept. 1 0.2 0.2 0.3 1.0 2.6 0 5.5 4.0 7.5 7 3.3 2.1 2 .3 .2 .3 1.0 2.6 3.S 6 7.5 7.5 6.5 3.4 1.9 3 .3 .2 .3 1.0 2.3 3.6 6 9 7.5 6 3.4 1.8 4 .3 .2 .2 1.0 2.2 .1 6 9.5 7 10 3.6 1.8 5 .3 .2 .2 1.0 2.2 .1 5.5 S.5 6 12 3.6 1.7 6 .3 .2 .2 .S 2.1 .1 .1 S.5 7.5 12 3.4 ' 1.7 7 .3 .2 .2 .8 2.1 .1 1.8 5 S.5 11 3.4 1.7 8 .3 .2 .2 1.0 2.1 0 0 0 7.6 10 3.4 1.8 9 .4 .2 .2 1.0 2.8 0 0 0 7 10 3.3 1.7 10 .4 .2 .2 1.0 2.6 0 0 2.8 6.5 9.5 3.3 1.7 11 .4 .2 .2 1.0 2.5 0 3.0 8.5 6.5 9 3.3 1.5 12 .4 .2 .1 1.0 2.3 2.1 4.1 10 6 S.5 3.3 1.5 13 .4 .2 .1 1.0 2.2 3.4 3.3 7.5 5.5 6.5 3.3 1.4 15 .4 .2 .2 1.0 2.2 4.5 6 6.5 12 7.5 3.4 1.4 16 .3 .2 .2 1.0 2.1 6 6 6 9.5 7.5 3.6 1.3 17 .3 .2 .2 1.2 2.1 4.0 6.6 5.5 10 7 3.4 1.3 18 .3 .2 .2 1.2 2.1 .1 7.5 5.5 9.5 6.5 3.4 1.0 19 .3 .2 .2 1.2 2.2 3.0 6 9 9 6 3.6 1.0 20 .3 .2 .2 1.2 2.5 3.6 4.1 9 11 6 3.6 1.0 21 .2 .2 .2 1.4 1.6 3.4 5 S.5 12 5.5 3.8 .9 22 .2 .2 .2 .3 0 3.6 6 8.5 11 6 3.8 .9 23 .2 .2 .2 0 0 4.5 5 8.5 10 6.5 3.6 .9 24 .2 .2 .2 0 0 6 5 8.5 11 6 3.4 1.0 25 .3 .2 .1 0 0 6.5 4.0 8.6 10 4.5 3.5 1.0 26 .2 .2 .4 0 0 7 6 9 9 4-1 '3.3 1.2 27 .2 .3 .7 0 0 7 7 8.5 S.5 4.1 3.1 1.2 28 .3 .3 .8 0 0 6.5 4.7 S.5 7.5 4.0 2.S .9 29 .3 .3 .9 0 . 5.5 4.3 8.5 7.5 3.8 2.3 .9 30 .2 .3 1.0 0 _ 5.5 3.6 7.5 7.5 3-6 2.2 .9 31 .2 - 1.0 1.8 - 5.5 - 7.5 - 3.6 2.1 ~ Second- Runoff in Month ( foot-days Maxima iliaias* Mean acre-feat October...... ,....'.'.... r ,...... 9.1 0.4 O.B 18 Deoe«h*r...... '...... 9.7 1.0 .1 .31 19 Calendar year 1942 ...... 721.6 9.5 .1 i.-oe 1,450 Januwry...... 23.9 1.8 0 .rr 47 Febr 47.6 2.8 0 1.70 94 MBIT, 98.6 7 0 3.18 196 April...... -132.5 7.5 0 4.48 263 221.3 10 0 7.14 430 252.5 12 5.5 8.42 got July...... 217.7 12 3.6 7.02 4S2 fcugu t...... 102.1 3.8 2.1 3.29 203 SepteMber...... 40.5 2.1 .9 1.36 SO Water year 1942-43 ...... 1,161.9 12 0 3.18 2,300 Pacific war time. To concert war time to standard time, subtree*. 1 hour. SANTA ANA RIVER BASIN 51 Plunge Creek near East Highlands, Calif. Location.- Water-stage recorder and concrete broad-crested weir, lat. 34°07'10", long. 117^08'30% In NEtNEi sec. 1, T. 1 S., R. 3 W., at mouth of canyon at crosslnp of North Fork ditch siphon, 2 miles northeast of East Highlands. Altitude of gage, about 1,625 feet. Drainage area.- 16.9 square miles. Records available.- January 1919 to September 1943. Average discharge.- 24 years, 7.07 second-feet. Extremes.- Maximum discharge during year, 080 second-feet Jan. 23 (gage height, 2.60 feet), from rating curve extended above 290 second-feet by logarithmic plotting; no flow for several Months. 1919-43: Maximum discharge, 5,340 second-feet Mar. 2, 1938, by slope-area method; no flow for long periods each year. Remarks.- Records good except those above 100 aecond-feet, which are fair, Diversions above station for Irrigation. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Mov. Dec. Jan, Feb. Mar. Apr. May June July Aug. sept. 1 1.5 J-2 18 12 11 - 2 1.8 9.5 15 11 10 I 3 1.8 9.5 43 11 9.5 > eO.Ol 4 1.8 8.5 206 10 9 5 1.3 8 384 11 9 1 6 .S 7.5 197 19 7.5 0 7 6.5 176 12 7.5 '0 9 6 172 25 6.5 0 9 eO.03 7 135 26 6.5 0 10 > eO.OS 7 80 18 5 0 11 6.5 7676 16 4.0 0 12 6 - 17 2.2 0 13 6 59 17 .6 0 \ 14 ' e.03 5 48 16 0 15 5 45 17 0 ' e0.02 16 4.7 36 17 0 17 4.7 34 17 0 18 .1 4.7 59 17 0 19 .3 .3 4,3 42 17 0 20 .1 .2 4.3 30 16 0 21 .1 40 27 16 0 22 .1 104 127 26 16 > e.05 0 23 .1 302 125 21 15 0 24 .2 92 99 19 14 0 25 . e.02 15 30 80 17 14 0 26 3.1 27 48 15 14 0 27 2.2 67 28 14 14 0 28 1.8 27 21 14 13 0 29 1.6 15 - 14 12 0 30 1.5 16 - 14 12 0 31 ~ 1.6 IS 12 - * Second- Runoff in Month ' foot-days Maximum Minimum Mean aore-feet October...... 0. 62 0.020 1.2 November...... 96 0.3 _ .032 J.9 December...... : ...... 28.31 15 - .913 56 Calendar year 1942 ...... 593.99 24 0 . 1.6S 1,180 January...... 705.85 302 22.8 1,400 February...... 700.7 127 4.3 25.0 1,390 March...... 2,064 324 12 66.6 4,090 April ...... 462 26 10 15.4 916 Hay...... 89.20 11 2.88 177 June ...... 05 0 .002 .1 July...... 0 0 0 0 0 August ...... 0 0 0 0 . 0 September...... 0 0 0 0 9, Water year 1942-43 ...... 4,051.69 324 0 11.1 S.030 Peak tfgebarite.- Jan. S3 (6 a.m.) 880 sec.-ft.; Feb. 22 (llt>.m.) 360 sec.-ft.5 Bar. 5 (4«30 a.m.) SOS sec.-ft. e Daily discharge less than 0.10 second-foot. Time baals; Pacific war time. To convert war time to standard time, subtract 1 hour. 52 SANTA ANA. RIVER BASIN San Tiraoteo Creek neai Redlands, Calif. Location.- Water-stage recorder and concrete control, lat. 34°01'3511 , long. 117°12'3b", In NWiNWi sec. 4, T. 2 S., R. 3 W., 2 miles southeast of Redlands. Altitude of gage, about 1,260 feet. Drainage area.- 123 -square mlles. Records available.- October 1926 to September 1943. Average discharge.- 17 years, 2.19 second-feet. Extremes.- Maximum discharge during year, 3,460 second-feet Jan. 23 (ga?e height, 6.35 feet), from rating curve extended above 800 second-feet by logarithmic plotting on basis of relation between mean velocity and mean depth; no flow during most of year. 1926-43: Maximum discharge, 7,460 second-feet Mar. 2, 1938, by slope-area method; no flow during several months each year. Remarks.- Records poor. Entire flow diverted above station except during high water. Occasionally unmeasured irrigation waste water flows past gage. Discharge, in second-feet, water year October 1942 tc September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0 0 0 0 0 0 - 2 0 0 0 0 0 0 3 0 0 0 0 54 0 4 0 0 0 0 f426 0 5 0 0 0 0 a66 .1 6 0 0 0 0 al.8 10 7 0 0 0 0 .5 0 8 0 0 0 .6 .5 .8 9 0 0 0 0 .5 0 10 0 0 0 0 .4 0 11 0 0 0 0 .3 0 12 0 0 0 0 .2 0 13 0 0 0 0 .1 0 14 0 0 0 0 .1 0 15 .1 0 0 0 .1 0 16 .1 0 0 0 .1 0 17 0 0 0 0 .2 0 18 0 0 0 0 .6 0 19 0 0 0 0 .4 0 20 0 0 0 0 .3 0 21 0 0 0 f21 .2 0 22 0 0 88 f!77 .7 0 23 0 0 f755 f36 0 0 24 0 0 0 fS.O 0 0 25 0 a. 6 0 0 0 0 26 0 0 0 0 0 0 27 0 0 5 0 0 0 28 0 0 0 0 0 0 29 0 0 0 ^ 0 0 30 0 0 0 _ 0 0 31 0 0 0 - 0 - Seoomj- Runoff in Month foot-daye Maximum Minimal Mam acre- feet October. ....,...... ,...... ,...... : 0.2 0.1 0 0.01 0.4 tfpYeatifaer a 0 0 0 0 Deceebar ...... 5 .5 0 .02 1.0 Calendar your 19'42 ...... 8.3 L.S 0 .08 16 JfmttaPv ------..-.--...... 849 75@ 0 87.4 1,680 Febru&ry 357.6 177 0 8.49 471- March...... 5B3.0 486 0 17.8 1,100 April ...... 10.9 10 0 .86 38 Xy...... 0 0 0 '00 0 Juae :...... 0 0 0 0 Jttly...... 0 0 0 0 0 August...... 0 0 0 0 0 September...... 0 0 0 0 0 Water year i9-:2-43 ...... 1,651.2 7S6 0 4. BE 3,270 a No gage-height record; discharge computed on basis of probable discharge recession curve, f Compute.il OL basis of partly estimated gage-height; record. Tiara baa 1st Pacific war time. To convert war time to standard Use, subtract 1 hour. SANTA ANA. RIVER BASIN 53 Warm Creek near Colton, Calif. Location.- Water-stage recorder, lat. 34°04'00", long. 117°18'GO", in San Bernarcilno Grant, at Colttin Avenue Bridge, li miles east of Colton, San Bernardino County. Altitude of gage, about 970 feet. Records available.- August 1920 to September 1943. Average discharge.- 23 years, 51.8 second-feet. Average combined discharge of Warm Creek and Meeks & Daley Canal, 23 years, 62.5 second-feet. Extremes.- Ifexiinum discharge during year, 9,200 second-feet Jan. 23,, (including flow by- passing gage), from rating curve extended above 900 second-feet by logarithmic plotting; minimum daily, 23 second-feet Sept. 19. 1920-43: Maximum discharge, 27,500 second-feet Ifer. 2,. 1938, from rating curve ex tended above 1,250 second-feet; minimum, 2.0 second-feet Sept. 8, 1936. Remarks.- Records fair except those for Jan. 22 to flar. 5, which are poor. See p. 66 for records of Meeks & Daley Canal near Colton, which diverts above station, and p. 54 for records of combined flow of canal,and Warm Creek. City of San Bernardino sewage- disposal plant discharged 4,V20acre-fcet into Warm Creek above station during year. Cooperation.- Records of flow from sewage-disposal plant furnished by city of Sap Bernardino. Discharge, in second feet, water year October 1942 to Septembei 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. '61 1 39 32 34 76 85 86 92 66 47 26 27 2 39 31 34 61 79 67 88 86 70 49 26 27 3 3Y 30 34 60 80 384 85 83 67 49 27 28 4 34 30 34 59 79 3,300 8S 81 64 48 30 27 5 34 28 34 59 79 600 143 80 63 51 30 26 6 34 29 32 61 81 f289 265 77 61 49 31 27 7 38 29 34 61 83 235 188 78 63 53 30 27 8 38 28 34 61 115 190 190 72 64 52 30 27 9 36 28 34 64 106 180 168 75 63 52 29 25 10 34 28 33 64 100 165 143 73 63 52 28 27 11 29 27 33 64 95 160 130 78 63 48 31 28 12 33 28 32 66 92 141 128 S3 63 49 31 24 13 30 28 33 61 87 128 120 83 63 47 30 25 14 30 28 33 59 83 118 116 81 60 46 30 25 15 29 29 33 51 81 114 114 80 59 47 31 24 'n 16 28 30 '3333 56 79 110 114 60 48 31 24 17 2Y 30 5Y 78 106 112 70 56 51 - 30 26 18 26 30 34 54 77 114 104 67 57 49 32 24 19 2Y 36 32 56 76 106 106 69 54 52 32 23 20 26 30 33 56 75 93 106 64 54 51 30 27 21 2Y 31 33 64 290 93 104 61 56 56 30 25 22 30 30 34 1,100 341 92 104 57 54 46 29 24 23 31 31 34 1,920 345 86 102 59 57 37 29 28 24 32 31 54 88 197 85 IDS 63 52 36 31 25 25 33 31 110 85 177 83 100 60 51 31 29 27 26 34 30 66 98 149 % 75 97 57 49 32 28 28 27 36 32 64 117 126 77 97 59 48 30 27 29 28 50 32 64 78 103 80 95 60 47 29 26 29 29 36 32 61 78 _ 80 97 60 47 29 26 28 30 33 32 60 79 _ 81 97 60 46 28 25 30 31 32 61 77 - 85 - 64 - 28 28 ~ Second- Runoff In Inflow In Month foot-days Maximum Minimum .Mean acre -feet ac~e-feett October ...... 1,022 50 26 33.0 2,030 334 November ...... 901 36 27 30.0 1,790 301 December ...... 1,307 110 32 42.2 2,590 328 Calendar year 1942 ...... 18,413 121 26 50.4 36,540 3,800 January ...... 4,975 1,920 51 160 9,870 384 February ...... 3,429 345 75 122 6,800 343 March ...... 5,602 1,300 67 181 11,110 423 April ...... 3,589 265 85 120 7,120 390 May ...... 2,209 92 57 71.3 4.38O 414 June ...... 1,740 70 46 58.0 3,450 422 July ...... 1,372 56 28 44.3 2,720 , 451 August ...... 903 32 25 29.1 1,790 466 September ...... 791 30 23 26.4 1,570 461 Water year 1942-43 ...... 27,840 1,920 23 76.3 55,220 4,720 Pealc discharge.- Dec. 25 (4:30 a.m.) 301 sec.-ft. j Jan. 23 (5:30 a^a.) 9,200 sec.-ft.; Fet. 23 (12:30 a.m.) 1,250 sec.-ft.; Mar. 3 (11 p.m.) 2,600 sec.-ft,; Apr. 5 (8 p.m.) 526 sec.-ft. t Discharge from sewage-disposal plant of city of San Bernardino; included in runoff figures in preceding column. f Computed on basis of partly estimated gage-height record, Hote.- Figures of daily discharge Jan. '22 to Mar.,5 include flow bypassing gage; discharge in overflow channel computed on basis of five measurements, four field estimates, records of flow at station, and records for station at Mill Street furnished by San Bernardino Flood Control District. Time basis! Pacific wir time. To convert war time to standard time, subtract 1 hour. 54 SANTA ANA RIVER BASIN Combined discharge. In second-feet, of Warm Creek and Heeks & Daley Canal nerr Colton, Calif., water year October 1942 to September 1943 Das Oct. NOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 69 50 53 61 76 85 86 92 76 66 46 45 2 S9 50 53 61 79 67 88 86 88 68 44 45 S 57 49 53 60 ' 80 384 85 83 86 69 45 46 4 54 48 53 59 79 1,300 88 81 83 68 48 46 5 53 46 52 59 79 600 143 80 82 71 47 43 6 53 47 51 61 81 289 265 77 80 70 48 45 7 57 47 52 61 83 235 188 78 79 73 46 47 8 56 46 52 61 115 190 190 72 80 75 48 47 9 54 46 52 64 106 180 168 75 79 74 47 44 10 52 44 51 64 100 165 143 73 82 72 45 45 11 47 43 52 64 95 160 130 78 81 68 49 46 12 51 45 50 66 92 141 128 83 81 67 49 42 13 49 46 51 65 87 128 120 83 83 64 48 44 14 48 46 51 68 83 118 116 81 79 61 48 42 15 47 47 51 65 81 114 114 80 78 61 49 42 16 46 48 51 68 79 110 114 77 78 62 49 42 17 45 48 51 68 78 106 112 70 74 64 48 44 18 44 47 52 66 77 114 104 67 75 64 50 42 19 45 56 51 68 76 106 106 71 72 68 50 41 20 44 49 52 67 75 93 106 70 74 67 48 47 21 45 50 50 74 290 93 104 70 76 66 48 45 22 43 50 52 1,110 341 92 104 72 74 62 49 42 23 49 51 54 1,920 345 86 102 70 .69 52 48 46 24 50 50 66 88 197 85 102 70 69 50 50 43 25 51 51 111 85 177 83 100 71 69 48 47 46 26 52 50 66 98 149 75 97 69 68 48 47 48 27 55 52 64 117 126 77 97 73 68 47 46 48 28 66 52 64 78 103 80 95 72 65 47 44 49 29 53 52 62 78 _ 80 97 72 65 45 45 47 30 51 52 60 79 _ 81 97 72 64 46 44 49 31 50 - 62 77 - 85 - 76 - 47 46 - Seoond- Runoff in Month foot-days Maximum Minimum Mean ao re-feet 8 Don December...... *...... 1,745 111 50 66.3 3,400 Calendar year 1942 ...... 23,462 124 43 64.3 46,690 j.64 10,080 February . . IBS March...... 1,300 181 Ito...... 88 July...... 1,910 61.6 3,790 September...... 1,348 49 41 44.9 2,670 Water year 194^-43 ...... 31,838 1,920 41 87.2 63,150 Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour. SANTA ANA. RIVER BASIN 55 Strawberry Creek near Arrowhead Springs, Calif. Location.- Vfeter-staee recorder and broad-crested weir control, lat. 34°10'45", long. 117"15«55", In SEi sec. 11, T. 1 N., R. 4 W., upstream from Del Rosa Water Co.'s lower diversion dam, half a mile south of Arrowhead Springs. Altitude of gag«, about 1,650 feet. Drainage area.- 8.6 square miles. Records available.- December 1919 to September 1943. Average discharge.- 23 years (1920-43), 5.18 second-feet. Extremea.- Maximum discharge during year, 1,400 second-feet Jan. 23 (gage height, 5.45 feet),by slope-area method; minimum daily, 0.8 second-foot Oot. 20-22. 1919-43: Maximum discharge, 3,360 second-feet Ifer. 2, 1938, by rainfall-runoff' studies; practically no flow at times during 1929, 1931-35. Remarks.- Records good. During year Del Rosa Water Co. diverted 15 acre-feet above station. There is another small diversion for domestic supply above station. Discharge, in second-* eet, water year October 1942 to September 1943 Day Oct. Nov. Bee. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 3.2' 1 1.0 1.5 1.6 2.2 12 24 IS 12 9 4.6 2 1.1 1.4 1.5 2.0 10 21 12 12 10 4.2 3.0 2*.6 3 1.1 1.3 1.7 2.0 9.5 71 11 12 9.5 4.2 3.2 S.5 4 1.1 1.4 1.8 2.0 9 98 11 13 '9 4.3 3.4 2.6 5 .9 1.4 l.s 2.0 8.5 210 36 12 S.5 4.1 5,3 2.4 6 84 32 12 8 4.0 S.9 S.3 1.9 6.5 65 21 12 7.5 4.2 3,0 2.4 8 1.1 1.4 1.8 1.9 9.5 52 37 12 7 3.9 3,1 2.4 9 l.*2 1.2 1.8 1.9 7.5 44 32 11 7.5 3.7 2.8 10 1.0 1.6 1.9 6 40 25 11 7.5 3.S 3,0 11 1.4 .9 1.8 2.0 6 34 23 11 8.5 3.9 S.9 12 1.9 1.0 1.8 2.0 6 29 21 10 9 3.9 2.9 Z\2 13 1.6 1.2 1.9 1.9 6 26 19 9^5 9.5 3.9 S.7 2.0 14 1.4 1.2 1.6 1.9 6 25 19 10 8.5 3.7 3,0 2.1 15 1.4 1.4 1.6 1.9 6 23 19 10 16 1.1 1.4 1.4 2.1 5.5 22 19 9 \ 6.5 4.1 S.9 2.0 17 1.3 1.6 2.2 5.5 21 18 .8.5 6.5 4.1 1.9 18 ' 1^1 1.4 1.9 2.0 5.5 31 17 7.5 6 4.1 1.9 19 .9 3.7 l.s 2.0 5.5 24 16 7.5 . 6 4.1 s'.6 2.'S 20 .8 2.2 1.7 S.2 * 5.5 21 16 7 6 3.8 2.6 21 .8 1.7 1.7 2.4 99 20 16 7 5 3.8 2.8 S.O 22 .8 1.6 1.6 112 98 21 15 7 5.5 3.8 2.9 2.0 23 .9 1.5 1.6 338 65 18 15 7.5 5 3.6 2.9 2.1 24 1.1 1.4 3.5 B42 59 16 14 7.5 5 3.0 2.7 3*.0 25 1.4 1.4 9.5 a24 39 16 15 8 5 3.6 2.7 26 1.2 1.6 3.4 22 28 16 14 8.5 5 3.1 2.6 3.0 27 1.4 1.5 2.9 a!9 28 14 14 9.5 4.8 3.4 2.5 2.9 1.8 1.7 2.5 a!6 26 14 14 9.5 4.4 3.4 2.5 2.8 29 1.7 1.6 2.5 12 14 13 8.5 4.1 3.4 2.7 2.6 30 1.6 1.5 2.S 15 14 12 8.5 4.2 3.2 2.8 2.4 31 1.6 2.3 j.4 13 8.5 3.2 2.6 Second-, Runoff Diversion Month foot-days Maximum Minimum Mean (acre-feet) (Rcre-feet)t Ooto 37. 7 1.9 0.8 1.2! 3 75 6.1 Hove 44. 3 3.7 .9 1.4S 88 6.0 December ...... 68. I 9.5 1.4 2.23 136 2.9 Calendar year 194E 992.'S 15 .5 2.7E 1,970 75 Janu ary . . . 656.. 5 338 1.9 21.2 1,300 .24 Febr S85. 5 99 5.5 20.9 1,160 0 liarc 1,141 210 13 36.8 2,260 0 Apr! 1...... 558 37 11 18.6 1,110 0 May. 299. ( ) 13 7 9.6E 593 0 June 205. ) 10 4.1 6.86 408 0 July 118. 3 4.6 3.1 3.8Z 236 0 Augu 88.' t 3.4 2.5 2.8 176 0 September ...... 69. i3 3.0 1.9 2.33 138 0 »ater year 1942-43 ...... 3,873.; 338 .8 10.6 7,680 15 Psak discharge.- Jan. 23 (5 a.m.) 1,400 sec. -ft.; Feb. 21 (6 p.m.) 710- sec. -ft. ; Feb. £ C (3 p.m.) 353 sec. -ft.; Har. 3 {10 p.m.) 371 sec. -ft.; War. 5 (4 a.m.) 324 sec. -ft.; Apr. 5 (8 p.m. ) 306 sec. -ft. t Diversion to Del Rosa Water Co. a No page-height record; discharge computed on basis of probable shape of discharge rec curve. Time basis: Pacific war time. To convert war time to standard time, subtract 1 hour. 56 SANTA ANA. RIVER BASIN Waterman Canyon Creek near Arrowhead Springs, Calif. ' Location.- Water-stage recorder and broad-crested weir control, lat. 34°ll t35", long. 117U16'35", In SVftSWi sec. 2, T. 1 N., R. 4 W., 1 mile northwest of Arrowhead Springs. Altitude of gage, about 2,125 feet. Drainage area.- 4.55 square miles. Records available.- November 1911 to October 1914, December 1919 to September 1943. Average discharge.- 25 years (1912-14, 1920-43), 3.10 second-feet. Extremes.- Maximum discharge during year, 620 second-feet Jan. 23, by slope-area method, (gage height, 4.50 feet); minimum dally, 0.1 second-foot Oct. 19-23. ', 1920-43: Maximum discharge, 2,350 second-feet Mar. 2, 1938, based on rainfall- runoff studies; no flow at times during summers of 1924-26, 1928, 1929, 1931, and 1934. Remarks.- Records good except those for periods of no gage-height record, which are fair. One small diversion for domestic use above station. Discharge, in second-fast, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.2 0.2 0.4 1.3 9 12 9 S.5 4.9 2.8 1.5 1.1 Z .2 .4 .4 1.2 8 12 8.5 S 5 2.8 1.4 1.0 3 .3 .4 .5 1.1 7.5 24 S 8 4.7 2.S 1.4 1.0 4 .2 .4 .6 1.1 6.5 41 S 8.5 4.9 2.S 1.5 1.0 5 .2 .4 .6 1.1 6 52 13 8 4.6 2.S 1.5 1.0 6 .2 .4 .6 1.0 5.5 36 17 8 4.6 2.6 1.4 1.0 7 .3 .3 .6 1.0 5.5 3C IS ' 4.4 2.7 1.4 1.0 8 .2 .4 .6 1.0 8 33 IE .5 4.3 2.6 1.4 1.0 9 .4 .4 .7 1.0 6.5 34 14 4.3 2.3 1.3 1.0 10 .5 .3 .7 1.0 5.5 33 12 4,3 2.3 1.3 1.0 11 .7 .4 .7 .9 5.5 29 12 4.4 2.2 1.3 1.0 12 2.6 .4 .7 1.0 5 24 12 .5 4,4 2.3 1.3 1.0 13 1.1 .4 .7 .9 4.6 21 12 t 5 4.3 2.3 1.3 1.1 14 .3 .4 .8 .7 4.4 19 11 .5 4.1 2.4 1.2 1.1 15 .5 .5 .6 .8 4.3 17 11 .5 3.7 2.8 1.2 1.1 16 .4 .5 .4 .9 4.3 16 11 3.5 2.7 1.8 1.1 17 .3 .6 .5 1.1 4.3 14 11 .5 3.5 2.7 ' 1.2 1.1 l» .2 .6 .S 1.3 4.3 20 11 .5 3.3 2.7 1.8 1.0 19 .1 5.5 .3 1.6 4.1 15 11 3.0 2.7 1.2 .9 20 .1 1.8 .8 1.7 4.1 13 11 2.9 2.7 1.2 .8 21 .1 1.2 .7 2.7 22 13 11 2.9 2.6 1.2 .8 22 .1 .9 .7 74 34 13 10 9 3.8 2.6 l.S .8 '23 .1 .7 .8 142 v 21 12 9.5 7 2.7 2.3 1.2 .9 24 .2 .6 2.7 a!7 20 12 9 7 2.6 8.2 l.S 1.2 29 .2 .7 5 a!2 17 11 9 6 2.7 2.0 1.1 1.6 26 .2 .7 2.0 10 14 11 9.5 6 2.6 1.6 1.1 1.6 27 .3 .6 l.S 11 13 10 9.5 < 6 2.6 l.S 1.1 1,5 28 1.1 .5 1.5 9 IE 10 9 . 6 2.7 l.S 1.2 1.4 29 .7 .5 1.4 8 10 9 6 2.6 1.7 1.2 1.3 30 .4 .5 1.4 10 _ 10 8.5 6 2,7 l.S 1.2 1.2 31 .2 - 1.3 10 - 9.5 - 6 - 1.6 1.2 - Second- Month Maximum Kiaiiann Mean Runoff in foot-clays » acre-feet I&6 g December...... 31,8 5 .4 1.03 63 Calendar year 1942 ...... 542.4 8 .1 1.49 1,080 £65 9 Itarch...... is May...... Q R 39 3 I nrr September...... 32.6 1.6 .8 1.09 65 Water year 1942-43 ...... 2,050.7 142 .1 5,62 4,070 Peak discharge.- Nov. 19 (4:30 a.m.j 14 sec.-ft.; Dec. E5 (2 S 30 a.m.) 18 sec.-ft.; Jan. 23 (5:30 a.m.) 620 sec.-ft.J Feb. 22 (2 a.m.) 152 sec.-ft.; Mar. 3 (9 p.m.) 164 sec.-ft.; Apr. 5 (7:30 p.m.) 49 sec.-ft. a No gage-height record; discharge computed on basis of probable recession curve. Time baals; Pacific war time. To convert war time to standard time, subtract 1 hour. AKi SIVHt BASOT 57 City Creefc near KIgMarui, Calif. Location,.- Water-stags recorder, lat. 34*08'35",-long. 117°11«251', In SWiNWi sea. 27, T. 1 N., R. 3 W., li miles oortlaeast of Highland. Altitude of gage, about 1.550 feet. Drainage area.- 19.& square miles. Records available.- October 1919 to September 1943. Average discharge.- 34 years, &.70 seeond-feet. Extremes.- Maximum discharge during year, 2,300 second-feet Jan. 23 (gage height, 5.17 fe^tj, from rating curve extended above 440 second-feet by logarithmic plotting; no flow Jan. 8. 1919-43: Maximum discharge, 6,900 seeond-feet Mar. 2, 1938, by slope-area method; no flow for several months during most years. Remarks.- Records good except those for periods of no gage-height record, which are fair. For records of combined flow with City Creek Water Co.'s canal, which diverts above station, see following page. Discharge, in second-feet, water year October 1942 to September 1943 Das Oct. NOTT. Dec. Jan. Feb. Mar. Apr. May June July Alg. Sept. 1 o.s 0.2 3.3 20 37 18 V1615 6 Ol 8 0.3 0.1 2 .2 .2 1.9 16 33 17 8 .8 .4 .1 3 .2 .8 2.2 13 83 17 15 7 .7 .4 .1 4 ,4 .S 2.9 13 422 16 14 6 .8 .5 .1 5 .5 .2 2.9 11 547 OQ 14 5.5 .7 .3 .1 i eO.03 6 .5 .e 2.7 10 250 67 14 5 .7 .3 .1 7 .4 .2 1.2 8.5 150 40 13 4.2 .6 .£ .1 8 .3 .2 0 IS 105 69 13 4.2 .6 .2 .1 9 .3 .2 .1 13 86 f65 12 4.2 .6 .1 .1 10 .2 .2 .2 10 75 50 12 4.2 .6 .1 . .1 11 .1 .2 .2 .2 9 66 45 fll 4.3 .6 .1 .1 IS .7 .2 .2 .2 7.5 60 38 11 4.5 .6 .1 .1 13 .6 .3 .2 .2 7 53 32 fll 5 .6 .1 .1 14 .3 .3 .2 .1 6.5 48 32 12 3.9 .6 .1 .1 15 .2 .5 .2 .1 6.5 44 33 11 3.3 .6 .2 , -1 16 .7 .2 .2 5.5 40 36 10 2.5 .6 .2 .1 17 .7 .2 .2 5.5 39 f32 10 1.6 .3 .2 .1 18 .8 .4 .2 5 51 30 10 1.1 .4 .2 .1 19 7 .2 .2 4.8 40 26 9.5 .9 .4 .1 .1 20 e.03 4.0 .2 .1 4.5 37 23 9.5 1.0 .3 .1 .1 21 1.8 .2 1.8 119 34 S3 9.5 1.0 .3 .1 .1 22 1.4 .2 263 fS94 34 21 8.5 1.3 .3 .1 .1 S3 1.3 .2 716 234 30 20 7.5 1.3 .3 .1 .1 24 .1 1.3 3.8 f!24 122 28 19 7 1.3 .3 .1 .1 25 .3 1.3 f26 f45 84 26 19 6.5 1.1 .3 .1 .1 26 .2'.S 1.3 ' f7.5 f40 68 25 18 6 .9 .3 .1 .1 27 .6 f4.5 60 56 23 17 6 .8 .3 .1 .1 28 2.0 .2 4.1 33 42 21 17 5.5 .8 .3 .1 .1 29 2.0 .2 3.9 25 - 20 16 5.5 .8 .3 .1 .1 30 .5 .2 3.7 27 - 20 16 5.5 .8 .3 .1 .1 31 .4 - 3.5 26 - 19 - 5 - .3 .1 _ Runoff in Month fooHays ""« Minimum Mean acre-feet O -I 4 0 Q October ...... 0.263 16 November ...... 0.2 .92 55 December ...... 6lle 26 .2 1.99 123 Calendar year 1942 ...... ± f \jtS,£,±& fio ~ 2.80 2,030 January ...... 1,379.9 716 0 44.5 2,740 February ...... 1,213.3 294 4.5 43.3 2,410 March...... 2 546 547 19 82.1 5,050 April ...... *901 69 16 30.0 1,790 May...... 315.5 16 . 5 10 . 2 626 June...... 92.5 8 3.08 183 July...... 3 .49 30 August ...... "...... 5.3 .5 .1 .17 11 September ...... 3.0 .1 .1 .10 6.0 Water year 1942-43 ...... 6,569.14 716 0 18.0 13,040 |sak discharge.- Jan. 23 (6 a.m.) 2,300 sec.-* $ ; Feb. 21 (8 p.m.) 237 aec.-ft.j Feb. 22 (9 p.m.) 872 sec.-ft.; Bar. 4 (1 a.m.) 590 see.-ft.; Mar. 5 (5 a.m.) 840 aec.-ft. ** s Discharge leas than 0.1 second-foot. f Computed on basis of partly estimated gage-height record. Kgte_._- Ho gage-height record Apr. 10-16, Apr, 24-May .10, May 14-June 11; discharge interpolated or computed on basis of four discharge measurements, recorded range in stage, and record-! of com bined discharge-of stream and City Creek Water Co.'s canal with Strawberry Creek near Arrowhead Springs. 58 SANTA ANA RIVER BASIN Combined discharge, in second-feet, of City Creek and oanal, near Highland, Calif, water yea* October 1942 to September 1943 Da, Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.7 1.7 2.7 3.3 21 41 23 20 13 6.5 2.9 2.5 2 .7 1.7 2.7 3.2 17 37 22 19 15 6.5 3.1 2.6 Z .7 1.5 2.8 3.2 14 86 22 19 14 6 3.5 2,8 4 .7 2.0 3.0 3.0 14 422 21 18 13 6.5 4.7 2.6 S .7 2.2 3.1 3.0 13 547 32 18 12 5.5 4.5 2.5 ' 12 & .6 2.2 3.1 2.8 250 67 18 12 5 4.0 2.5 7 .7 .2.1 3.1 3.2 10 150 40 17 11 5 3.6 2.5 8 .8 2.C 3.3 3.4 18 107 69 18 11 4.7 3.4 2.5 9 2.1 1.9 3.3 3.4 13 90 55 17 11 4.5 3.1 2.6 10 3.6 1.7 3.1 3.5 12 79 SO 17 11 4.3 3.0 2.5 11 2.0 1.7 3.1 3.5 14 70 45 16 11 4.4 3.0 2.3 12 2.7 1.7 3.1 3.5 12 63 40 16 12 4.4 2,9 2.3 13 2.5 1.8 3.1 3.4 11 56 36 16 12 4.5 2.8 2.2 14 1.9 1.9 3.1 3.2 10 51 36 18 10 4.6 3.0 2.3 15 1.7 8.2 S.I 3.2 10 47 36 17 10 5 5.1 2.3 16 1.3 2.6 3.2 3.2 9 43 36 16 8.5 5.S 3.0 2.1 17 1.2 2.6 3.2 3.3 9 43 32 16 8.5 5 3.1 1.9 18 1.2 2.8 4.7 3.3 S 55 SO 16 7.5 4.9 2.7 2.0 19 1.3 10 3.8 3.3 8 44 29 16 7.5 4.7 2.6 1.3 20 1.3 6 3.6 3.3 7.5 41 28 16 7.5 4.6 2.5 2.6 21 1.1 3.9 3.5 3.9 120 38 28 15 7 4.4 2.6 2.8 22 1.1 3 'i 3.5 263 294 38 26 14 7 4.5 2.9 2.2 23 1.2 3.8 3.4 716 234 34 24"25 14 7 4.1 2.8 2.1 24 1.6 3.2 6.5 124 122 32 14 7 3.8 2,8 2.4 25 2.0 3.3 26 45 84 SO 23 14 6.5 3.5 2.7 4.3 26 1.7 3.3 7.5 40 68 29 22 13 6.5 3.3 2.5 4.3 27 1.7 3.0 4.5 62 59 27 21 12 6.5 3.2 2.4 4.3 28 3.0 2.9 4.1 36 46 26 21 12 6 3.6 2.2 3.9 29 3.5 2.8 S.9 26 26 20 12 6.5 3.0 2.3 3.3 30 2.2 2.7 3.7 28 _ 26 20 12 6.5 3.0 2.5 2.8 31 2.0 - 3.5 27 - 24 - 12 - 2.8 2.5 - Second- Runoff in Month foot-clays Kaximua Minima Mean acre-feet 98 December...... 134.3 26 2. 7 4.33 266 Calendar year 1942 ...... 1,814.5 26 1 4.97 3,600 on May...... 968 284 0 July...... 4.t 8 p QQ September...... 79.3 4.3 i..5 . 2.64 157 Water year 1942-43 ...... 7,696.5 716 . 3 21.1 15,270 Time basis: Pacific war time. To convert war time to standard time, subtract 1 hour. SMWA ANA. RIVER BASIN 89 City Creek Water Co.'s canal near Highland, Calif. Location.- Water-stage recorder, lat. 34°08'35lf , long'. 117°11'25", In HWi sec, 27, T, 1 Is., R. 3 W., li miles northeast of Highland. Records available.- May 1924- to September 1943. Average discharge.- 19 years, 2.26 second-feet. Extremes.- Maximum dally discharge during year, 7 second-feet Way 23-26, Jure 1-6, 12, 13, 17; no flow Apr. 6-11, 16-18. 1924-1943: Maximum discharge, 10 second-feet I1ay 30, 1927; no flow at tiiaes. Remarks.- Records good except those for periods of no gage-height record, wtlch are fair. This canal diverts from City Creek a quarter of a mile above gage on that stream. (See p.58 for records of combined flow of City Creek and canal.) > Discharge, in second-fe«t, water year October 1948 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.7 1.5 2.5 eO.02 1.1 4.0 5 4,0 7 - 5.5 2.6 2.4 2 .7 1.5 8.5 1.3 1.1 3.7 5 3.9 7 5,5 2.7 2.5 3 .7 1.3 2.6 1.0 1.1 2.6 5 4.0 7 5,5 3,1 8.7 4 .7 1.6 8.8 .1 1.2 .1 5 4.0 7 5.5 4.2 2,5 5 .7 1.7 E«9 .1 l.S .1 3.5 4.0 7 S, 4.2 £.4 6 .6 1.7 2.9 .1 1.7 .1 0 ft4.B 7 4.5 3.7 2.4 7 .7 1.7 2.9 2.0 1.9 .1 0 a4.4 6.5 4.4 3.4 2.4 3 S 9 2.1 l.S 3.1 3.3 .1 4.1 0 ft4.8 6.5 3.9 3.0 2.6 10 3.6 1.5 2.9 3.3 1.8 3.8 0 a5 6.5 3.7 2.9 2.4 11 1.9 1.5 8.9 3.3 4.5 3.6 0 S 6.5 3.8 2.9 2.2 12 2.0 1.5 2.9 3.3 4.4 3.3 S.O 5.5 7 3.S 2.S 13 1.9 1.5 2.9 3.2 3.9 3.0 3.7 5.5 7 3.9 2.7 2.1 14 1.6 1.6 2.9 3.1 3.8 2.8 3.7 5.5 6.5 4.0 B.9 2.2 15 1.5 1.7 2.9 3-a 3.6 2.B 2.6 6 6.5 4.4 2.9 2.2 16 1^ 1.9 3.0 3.0 3.5 3.4 0 6 6 4.7 2.8 2.0 17 1.2 1.9 3.0 3,1 3.3 3,9 0 6 7 4.B 2.9 i.e 18 1.2 £.0 4.3 3.1 3.2 4.4 0 6 6.5 4.5 2.5 1.9 19 1.3 8.9 3.6 3.1 3.2 4.2 2.9 6 6.5 4.3 2.5 1.8 . 20 1.3 1.9 3.4 3.2 3.0 4.1 4.7 6 6.5 4.3 2.4 2.5 21 1.1 2.1 3.3 2.1 1.5 4.1 4.7 5.5 6 4.1 2.5 2.7 22 1.1 2.0 3.3 .1 .1 4.1 4.7 6 5.5 4.2 2.S 2.1 23 1.2 1.9 3.2 .1 3.9 4.6 7 5.5 3.B a2.7 2.0 24 1.5 1.9 2.3 4.0 4.5 7 5.5 3.5 a2.7 25 1.7 2.0 .1 I e.02 I a. 03 3.9 4.4 7 5.5 3.2 2.6 4U2 26 1.5 2.0 4.0 4.3 7 5.S 3.0 2.4 4.2 27 l.S 2.4 E.I 3.E 4.1 4.2 6.5 5.5 2.9 2.3 4.S 28 1.0 2.7 2.0 4.4 4.5 4.1 6.5 5 3.3 2.1 3.8 29 1.3 2.6 l.S 5.5 4.1 6.5 5.5 2.7 8.2 3.2 30 1.7 2.5 ,B 5.5 4.0 6.5 5.5 2.7 2.4 2.7 31 1.6 .9 5 - 6.5 - 8.5 2.4 " Seccnd- Runoff In Month fcct-days Maximum Miniatm Mean acre-feet 83 n p Decenber...... 72.82 4.3 2.35 144 O 1 p 797 . 52t. **" *F ° J. f OHU January 55 48 arch...... u5u 3 9 June July...... 173 September...... 76,3 4.2 1.2 E.54 151 Water year 1942-43 ...... - ...... 1,106.62 7 0 3.69 2,230 a Ho gage-height record; dl-charge interpolated. e Dally discharge leas than 0.1 second-foot. TJIHB baa Is; Pacific war t)re. To convert war time standard time* subtract 1 horr. 6O SANTA ANA RIVER BASIN Devil Canyon Creek near San Bernardino, Calif. Location.- Water-stage recorder and broad-crested weir control, lat. 34°12'Q5*, long. ir7°SO% 10*, in Muscupiabe Grant, 7.3 miles northwest of San Bernardirio, San Bern&nlino County. Altitude of gage, about 1,800 feet. Drainage area.- 6.16 square miles. Records available.- November 1911 to September 1912, October 1913 to September 1914, and December 1919 to September 1943. Average discharge.- 24 years (1913-14, 1920-43), 2.28 second-feet. Extremes.- Maximum discharge during year, 642 second-feet Jan. 23 (gage height, 4.15 reetj, from rating curve extended above 44 second-feet by logarithmic plotting; no flow for several months. 1913-14, 1919-43: Maximum discharge, 3,320 second-feet Mar. 2, 1938, by rainfall- runoff studies; no flow for several months during summers or 1924-37, 1939-43. Remarks.- Records good. City of San Bernardino diverted 2,170 acre-feet above station aunng year for municipal supply and to spread over canyon floor for ground-water recharge. Discharge, in second feet, water year October 1942 to September 1-943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 O 8.5 9 7 1.8 0.4 0.2 0.1 0,1 2 0 7.5 8 6 1.8 .7 .2 .1 .1 3 0 6.5 17 6 2.0 .4 .2 .1 .1 4 0 a6 37 5.5 2.2 .4 .2 .1 .1 5 0 a4.0 50 6.5 2.2 .4 .2 .1 .1 6 O a3.8 48 14 1.8 .4 .2 .1 7 0 a3.5 35 12 1.7 .4 .2 .1 8 o 4.5 28 17 2.6 .4 .e > e.O3 .1 9 0 a3.5 26 16 2.4 .4 .2 .1 10 0 aS.O 25 14 2.0 .3 .2 .2 11 0 aC.O 24 11 1.7 .3 .2 .1*.1 12 0 1.0 22 all 1.5 .3 .2 13 0 1.0 19 alO 1.7 .3 ".2 .1 14 0 .7 18 alO 1.6 .3 .1 15 0 .6 15 a9 1.4 .3 .2 .1 16 0 .5 12 a8.5 1.2 .3 .2 .1 17 0 .4 11 8 1.3 .3 .2 .1 18 0 .3 17 7 1.0 .3 .e .1 19 0 .2 13 7 .8 .2 .2 .*! 20 0 .2 10 6.5 .8 .2 .2 > e.02 21 0 7 9.5 5.5 .6 .2 .2 .1 22 49 18 9.5 3.6 .5 .2 .2 .1 23 154 22 8 3.4 .5 .2 .2 .1 24 15 19 7 3.4 .6 .2 .2 .1 25 11 16 6.5 3.4 1.2 .2 .2 .1 26 11 13 6.5 3.3 1.2 .2 .2 .1 27 t 13 12 8 2.8 1.2 .2 .2 .1 28 8 9.5 8.5 2.7 1.0 .2 .2 .1 29 7 . 8.5 2.4 .7 .2 .1 .1 30 11 8.5 2.4 .5 .2 .1 .1 31 11 e .4 .1 .1 Second- Diversion in Month Maximum Minimum Mean Runoff' in foot-days acre- feet ecre-feett Octo 0 o 0 0 0 73 Nove 0 0 0 0 0 84 December ...... 0 0 0 0 O 97 Calender year 1942 144.36 7 0 .39 5 286 1,210 Janu 290 154 0 9.4 575 90 Febr uary ...... 174.2 22 6.2E 346 163 Marc h. .. . 532.5 50 6^5 17. E 1,060 178 Apri 1 224.9 17 2.4 7.50 446 271 May 41.9 2.6 .4 1.35 83 373 June 9.0 .7 .30 18 311 July 5.9 .2 .19 12 219 Augu at ...... 2.92 '.1 .09 4 5.8 167 Sept 1.3£ .04 4 £.6 141 Wa ter year 1942-43 ...... 1,262.64 154 0 3.51 2,550 2,170 Peak ^ischarfce.- Jan. 23 (5 a.m.) 642 sec. -ft.; Feb. 22 (8 p.m.) 44 se&.-ft.; rhr. 5 (7 a.m.) 79 see.-ft.; Mar. 18 (4:30 a.m.) El sec.-ft.; Apr. 8 (4 p.m.) ZZ eec.-ft. t Diversion by city of San Bernardino. Records fu,rnished by that eity. ( a Ho gage-height record; discharge computed on basts of records for Strawberry Creek, records of changes in diversion, and interpolation. e Daily discharge less tfito 0.1 second-foot. Time basis'; Pacific war time. To convert war time to standard time, subtract 1 hour. SANTA AHA RIVER EASIN Lytle Creek near Fontana, Calif. Location.- At intaJse of Fontana pipe line, lat. 34°1E'05", long. 117°27'05% In NV& sec. 6, T.I N., R. 5 W.,' urisurveyed, just downstream from Lytle Creek power plant of Sajnt ern California Edison Co. and 8 miles north of Fontana. Altitude, about 2,200 feet. Drainage area.- 47.9 square miles. Records available.- October 1918 to September 1921, October 1922 to September 1943. - Average discharge.- 24 years, 10,2 eecond-feet. Average combined discharge of creek and Fontana pipe line, 24 .yeans, 40.6 second-feet. Extremes.- Maximum discharge'daring year, 4,800 second-feet Jan. 23, slope-area determina- tlo'ri by Geological Survey; no flow during parts of year. 1918-21, 1922-43: tfeximum discharge, 25,200 Second-feet rfer. 2, 1938, b^ slope- area method; no flow during most of each year. Remarks.- Records for Lytle Greek poor. Records for Fontana pipe line good; ttiey Include other small diversions. Flow in main pipe line passes through Fontana powerhouse and is then used for irrigation and domestic supply. Table on following page shows com bined flow of Lytle Creek and Fontana pipe line, which is total flow ol Lytle Creek. Cooperation.- Records furnished by Fontana Union Water Co, Discharge, in second-feet, water year October 1942 to September Day Oct. Mov. Dec. Jan. Feb. Mar. Apr. May June July * >*. Set*. 1 0 0.1 0 81 114 80 52 15 84 12 2 a 0 0 66 96 SO 52 15 25 13 3 0 0 . 0 &£. 417 79 SS 15 26 12 4 0 0 0 51 1,050 78 53 16 28 12 5 0 0 0 46 483 81 64 15 26 12 6 0 0 0 42 344 95 52 15 25 11 7 0 0 0 39 276 95 41 15 24 10 8 0 0 0 59 216 S7 34 15 23 9.6 9 0 0 0 41 215 SS 32 15 28 8.5 10 0 0 0 37 196 82 31 16 24 7.6 11 0 0 0 36 183 81 30 16 25 6.5 12' 0 0 0 33 170 78 28 16 23 6 13 0 0 0 30 159 76 24 17 23 4.6 14 0 0 o 30 149 72 22 17 22 3.5 16 0 0 0 30 137 70 IS IS 22 2.4 16 0 0 0 30 122 69 16 ie 27 2.0 17 0 0 0 44 108 64 17 19 22 1.4 18 0 0 0 3® 114 59 11 17 22 1.3 19 0 0 0 SS 111 55 11 IB 22 1.0 20 0 0 Q SO 105 56 10 18 22 .8 '.4 21 0 0 100 101 i 58 10 17 23 .7 22 0 0 864 110 . 106 SB 9,3 16 ei .6 23 0 0 1,310 272 100 59 9 15 39 .3 - 24 0 0 482 2S2 95 60 9 14 19 .2 25 0 0 134 160 92 60 12 20 18 .1 26 0 0 ies -»U2 91 60 14 14 16 0 27 0 0 iss *152 88 59 IS 14 16 0 28 .7 0 its 124 83 58 15 17 15 0 29 .6 0 119 _ 82 56 15 17 14 0 30 .2 0 101 90 54 15 21 15 0 31 .E - 100 - 81 - 15 - 13 0 Seco*&- Runoff Ir Diversion Month foot-dfeys Maximum Minimum Mean acre-feet acre-fee,tt October ...... 1.9 0.7 0 0.06 3.8 1,500 November ...... 6 .4 0 .02 l.C 1,470 December ...... 0 0 0 0 0 1,430 Calendar year 1942 ...... 188.8 17 0 .52 374 21,670 January ...... 3,460 1,310 0 112 6,360 1,260 February ...... 8,101 272 29 75.0 4,170 2,600 March ...... S» W6 1,060 81 186 11,460 3,480 April ...... 2,104 95 54 70.1 4,170 3,740 . May ...... 779.5 54 9 25.1 1,550 4,060 June ...... 491 21 14 16.4 974 3,870 July ...... 692 39 13 22.3 1,370 3,580 August ...... 139.9 .13 0 4.51 277 3,970 September ...... 0 0 0 0 0 3i210 Water year 1942-43 ...... 15,545.8 1,310 0 42.6 36,840 34, ISO t Diversion through Fontana pipe line. Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour. 62 SANTA ANA. RIVER BASIN Combined discharge, In second-feet, of Lytle Creek and Fontana pipe line near Pontana, Calif., water year October 1942 to September 1943 Das » Oct. NOV. Deo. Jan. Feb. Mar. Apr. May June jily Aug. Sept. 1 24 26 24 21 112 163 142 118 82 79 77 61 2 24 26 24 21 112 145 142 118 82 79 77 60 3 24 25 24 21 104 463 142 119 82 79 77 60 4 24 25 24 21 103 1,080 141 119 82 79 76 59 5 24 26 24 21 100 514 144 120 82 79 77 58 6 124 26 24 20 94 374 1S8 118 82 79 76 58 7 24 26 24 21 91 319 157 107 82 80 76 57 8 24 26 24 21 111 273 149 100 82 80 75 57 9 24 25 24 20 93 276 146 98 82 80 74 56 10 24 25 24 20 89 258 144 97 82 80 73 56 11 25 25 24 20 88 245 143 96 82 80 72 55 12 26 25 23 20 85 232 140 94 83 80 71 55 13 25 26 24 19 82 221 137 91 83 80 70 54 14 . 25 24 24 20 82 211 134 87 84 80 69 54 15 24 25 23 22 82 199 132 84 84 80 68 54 16 24 25 23 22 82 184 131 82 86 80 68 53 17 24 24 25 23 82 170 126 79 86 81 67 53 18 SB 24 23 22 81 176 121 78 83 82 67 52 19 24 25 23 23 81 173 117 77 84 82 66 52 20 24 25 23 23 82 167 117 . 11 83 82 66 52 21 24 25 23 25 126 163 120 76 82 83 66 51 22 24 24 23 869 235 168 122 76 81 84 66 50 23 24 24 23 1,510 300 162 124 75 80 83 65 50 24 24 24 23 502 259 157 126 76 79 83 65 51 25 24 24 25 166 210 154 125 79 79 82 64 52 26 24 24 23 136 191 153 125 80 79 83 64 52 27 24 24 23 159 182 150 124 81 79 81 63 50 28 27 24 22 134 173 147 123 82 79 79 63 49 29 27 24 21 144 _ 144 121 82 79 78 62 48 30 26 24 22 125 143 119 81 79 78 62 48 31 25 - 22 125 - 143 - 81 - 78 61 - Seoond- 3 Runoff in Month foot-days Maxima JJiniaum Mean acre-feet October...... 758 27 24 24.5 1,500 Novenber...... 742 26 . 24 24.7 1,470 December ...... 723 24 21 2S.3 1,430 Calendar year 1942 ...... 11,124 68 21 '30.5 88,040 January...... 4,114 1,810 19 13S 8,160 February...... a, 512 300 81 125 6,9YO, March...... 7,527 1,080 143 243 14*930 April ...... 3,992 158 117 13S 7,980 MW...... 2,828 ISO 7S 91.2 5,610 June ...... 2,454 86 79 81.8 4,870 July 2,493 84 78 80.4 4,940 August...... 2,143 77 61 69.1 4,250 Sept enter...... 1,617 . 61 48 %S3.9 3,210 Hater year 1942-43 ...... 32,903 1,310 19 90.1 65,260 Time basis; Pacific war time. To convert war tine to standard time, subtrae*. 1 hour. SMfFA ANA. RIVER BASIN 63 Lytle Creek (east channel) at San Bernardino, Calif. « Location.- Water-stags recorder, lat. 34*05'45", long. 117019'50", In San Bernardlno Grant, at Mount Vernon Avenue Bridge, San Bernardino, San Bernardino County. Altitude of gage, about 1,050 feet. Records available.- January 1929 to September 1943. Average discharge.- 13 years (1929-38, 1939-43), 5.80 second-feet. Extrenes.- Maximum discharge during year, 7,800 second-feet Jan. 23 (gage height, 6.7 reet;, by slope-area method; minimum daily, 0.1 second-foot on many days. 1929-43: Maximum discharge, 21,500 second-feet Mar. 2, 1938, by computation of flow through contracted opening; no flow during part of most years. Remarks.- Records poor. Water diverted above station to debris cone for gound-mter recharge and by Fontana pipe line. Minor diversions tor Irrigation. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. . Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 1.0 0.6 0.6 0.5 1.0 1.0 0.5 14 0.3 0.2 0.2 0.4 .6 1.4 .6 1.0 .5 .5 14 .3 .2 .2 .4 .2 .6 1.2 .6 1.0 157 .5 14 .3 .2 .2 .4 .1 .8 .9 .7 1.0 800 .5 14 .3 .2 .2 .5 .1 .S .6 .7 1.0 80 5 14 .3 .2 .a .5 6 .1 ' .6 .2 .8 1.0 15 >15 10 .3 .2 .2 .5 .1 .5 .4 .9 1.0 5 10 1.0 .4 .2 .£ .5 .1 .5 .6 1.0 10 2.0 10 .2 .4 .2 .£ .5 .1 ,5 .2 .8 1.0 1.0 9 .2 .4 1.0 .£ .5 .1 .4 .2 .6 .8 .7 9 .2 .4 .3 .2 .4 11 .1 .4 .2 .5 .7 .5 9 .3 .4 .3 .2 .4 .1 .4 .S .4 .6 .5 8 .3 .4 .3 .2 .4 .1 .5 .2 .3 .5 .5 8 .3 .4 .3 .2 .4 .1 .3 .3 .3 .5 .5 8 .3 .3 .3 .2 .4 .1 .3 .2 .3 .5 .5 8 .3 .3 .4 .2 .4 16 .1 .4 .2 .3 .4 .5 7.5 .2 .3 .2 .2 .4 17 .2 .3 .2 .3 .3 .5 7.5 .2 .2 .2 .2 .4 18 .4 .6 .3 .3 .5 8 .2 .2 .2 .2 ' .4 .6 .6 .3 .a .5 8 .2 .2 .2 .2 .3 1.5 .6 .3 .2 .5 8 .2 .2 .3 .2 .4 21 .3 2.9 .5 .3 15 .5 9 .2 .2 .3 .3 22 .4 2.0 ..3 e960 874 .5 9 .2 .2 .3 .5 .4 .6 1.4 .6 (1,440 e7S .5 11 .2 .2 .4 .7 .4 .2 .8 1.0 20 30 .5 12 .2 .2 .2 .7 .4 .1 .4 .8 .2 10 .5 13 .2 .1 .2 .6 .5 26 .1 .2 .6 .5 7 .S 14 .3 .1 .2 .6 :e 27 .1 ..2 .5 1.0 5 .5 14 .3 .1 .2 .6 .6 .4 .3 .4 2.0 2.0 .5 14 .3 .1 .2 .5 .6 .4 .4 .4 1.7 - .5 14 .3 .1 .2 .4 .7 .4 .4 1.4 _ .5 14 .3 .1 .2 .4 .7 .5 - .4 1.2 - .5 :s .2 .4 Second- Runoff in Month foot-days Maximum Minimum Mean acre-fecit October...... 7.2 14 December...... 15.5 1.4 .!3 .50 31 Calendar year 1942 ...... 124.6 4.0 _ .34 847 1 440 800 cO ,1 May...... 86 9 8 8 September...... 13.8 .7 .:S .46 27 Water year 1942-43 ...... 4,182.5 1,440 .1I 11.6 8,SOp e Computed on basis of records for Warm Creek near Colton and Warm Creek at Hill Street, San Bernardino (unpublished). Hote.- Doubtful or no gage-height record Oct. 17-19, Oct. 28 to Hov. 2, Dec. 10, 11, Dec. 25 to Jan. 21, Jan. 24 to War. 2, Bar. 4 to July 15, July 24 to Aug. 23, Sept. 26; discharge interpolated or computed on basis of fragmentary gage-height graph, frequent measurements and field estimates of flow, probable shape of discharge recession curve, and weather records. Time basis; Pacific war tine. To convert war time to standard tine, subtract 1 hour.. 64 SMWA Am RIVER B&SIN Lytle Creek (west channel) at colton, Calif. Location.-. Water-stage recorder, lat. 34°04'00", long. 117°19'15*, In San Benmrdlno Grant, on F -Street near Colton Avenue at Colton, San Berrardino County. Altitude of gage, about 980 feet. Records available.- January 1929 to September 1943. Average discharge.- 14 years (1929-43), 0.91 second-foot. Extremes.- tfeximum discharge during year, 13,000 second-feet <&n. 23 (gage height, 9.6 feet), by slope-area method; "no flow during most of year. 1929-43: ffaYiTHum discharge, that of Jan. 23, 1943; no flow during most of each year. Remarks.- Records poor. Water diverted above station to debris cone above Foothill Boulevard for ground-water recharge and by Fontana pipe line. Miner diversions for Irrigation. Discharge, in second-feet, water year October 1942 to Septenbtr 1943 Day Oct. HOT. Dec. Jan. Fab. Mar. Apr May June July Aug. Sept. 1 0 0 0 2 0 0 O 3 o 0 e5 4 0 0 «3.0 b 0 0 0 6 0 0 0 7 0 0 0 8 0 0 0 9 0 0 0 10 0 0 0 11 0 0 0 12 0 0 0 13 0 0 0 14 0 0 0 15 0 0 0 16 0 0 0 17 0 0 0 18 0 0 0 19 0 0 0 20 0 0 0 21 0 0 0 22 0 9 0 23 0 n.STo 0 24 0 al.5 0 25 , .1 al.O 0 26 0 a. 5 0 27 0 0 0 28 0 0 0 29 0 0 0 30 0 0 0 31 0 0 0 Secoad- Runoff in Month foot-days ttftjtilMttt MinimoM Heaa acre-feet ) 0 0 0 () , 0 December ...... 1 .1 (> 0.003 .B Calendar year 1942 ...... 1 .3 {) .002 1.4 March...... ) .66 18 May...... 0 ) 0 September...... 0 0 (> 0 0 Water year 1942-43 ...... ' 1,690.1 1,570 <» 4.36 3,160 a So gage-height record; discharge computed on beula of field estimate cf diCharge on Jan. £4 probable recession curve. * e Discharge computed on basis cf field estimate of peak discharge on Mar. S and probable re cession curve. f No gage-heigjit record after 7 a.re.j discharg* .ee*»at*4 on bas'is of ,esttaa4>4 fidteasioa curve. Time baaiat Pacific war time. Tc convert war time to standard tint, srrtiWatt 1 hour. SANTA ANA. RIVER BASIN 65 Cajon Creek near Keenbrookv Calif. Location.- Water-stage recorder and broad-crested weir control, lat. 34°16'00", long. n7"27'?5", in SWtSEi sec. 12, T. 2 N., R. 6 w., 1,800 feet upstream from Lore Pine Creek and 1$ miles north of Keenbrook, Altitude of gage, about 2,630 feet. Drainage area.- 40.9 square miles. Records available.- December 1919 to September 1943. Average discharge.- 23 years (1920-43), 10.3 second-feet. Extremes.- Maximum discharge during year, 11,000 second-feet Jan. 23 (gage height, 17.8 feet), by slope-area method; minimum daily 3.7 second-feet Oct. 1-8, 19, 20, Itov. 3-7. 1919-43: Ifeximum discharge, 14,500 second-feet Jfer. 2, 1938, by slope-area method; minimum, 0.05-second-foot June 25, 1920. Remarks.- Records good except those above 100 second-feet and those for periods of no gage-height record, which are fair. No diversions or regulation above station. Discharge, in second-feat, water year October 1942 to September 1943 Daj Oot. Nov. Deo. Jan. Feb. Mar. Apr. May June July Attf. Sept. 1 3,7 3.9 4.3 4.3 54 50 22 14 9 6.5 6 4.0 2 3.7 3.9 4.3 4.3 41 47 22 14 9 6.5 e 4.3 3 3.7 3.7 4.3 4.3 t24 583 22 14 8.5 6.5 5.5 4.3 4 3.7 3.7 4.3 4.1 22 428 22 15 S.5 7 4.3 5 3.7 3.7 4.3 4.1 20 t91 22 14 8.5 6.5 l:i 4.3 6 3.7 3.7 4.3 4.1 10 t86 26 14 8.5 7 f.5 5 IS 74 23 13 6 6.5 F.5 5.5 8 3.7 3.9 4.3 4.1 18 76 24 13 6 6.5 6 5.5 9 3.9 3.9 4.3 4.1 17 59 24 " 12 9 6.5 6 5.5 10 3.9 4.1 4.3 4.1 17 54 24 12 8.5 6.5 6 5.5 11 4.1 4.1 4.3 4.1 t!7 52 24 11 9 7 e 5.5 12 4.1 4.3 4.3 4.1 16 45 24 11 6.5 7 e 5 13 4.1 4.3 4.3 4.1 tie 42 23 10 8.5 7 e 5.5 14 3.9 4.3 4.3 4.3 15 41 21 10 6 7.5 f 5.5 15 4.1 4.3 4.3 4.3 14 39 20 10 7.5 7.5 e 5.5 16 4.1 4.3 4.3 4.3 t!4 3B 20 10 7 8.5 f.5 5.5 17 4.1 4.3 4.3 4.3 12 36 20 9.5 7.5 8 f.5 5 18 4.1 4.3 4.3 4.3 10 3B 19 10 7.5 7.5 f.5 5 19 3.7 4.5 4.3 4.3 10 r 34 16 9.5 7 76.5' f.5 5.5 20 3.7 4.3 4.3 4.1 10 32 le 9 7 .5 5.5 21 3.9 4.3 4.3 7.5 166 30 17 8.5 7.5 6.5 4.6 22 3.9 4.3 4.5 1,550 1720 30 16 6.5 7.5 6.5 4.0 23 . 3.9 3.9 4.5 f2,560 f403 t28 16 8.5 7 6 4.3 24 4.1 4.3 4.9 t85 tee 26 16 e.5 7 6 5 25 4.3 4.3 4.9 t61 t71 tae 16 8.5 7 6 6 26 3.9 4.3 4.5 60 68 27 '1516 6.5 7 5.5 6.5 27 4.1 4.3 4.5 72 63 26 8.5 6.5 5.5 6.5 28 6 4.3 4.3 52 58 26 15 6.5 6.5 6 6 29 4.7 4.3 4.3 50 '26 15 6.5 6.5 6 6 SO 4.3 4.3 4,3 t65 25 14 6.5 6.6 5 4.3 6.5 31 4.1 4.3 60 24 9 5.5 4.3 Second- Runoff in Month foot-days Maximum Minimum Mean acre-feet Ooto 124.6 6 3.'r 4.02 247 Hove) 123.8 4.5 3.'r 4.13 246 Deoe her...... 135.3 4.9 4.;S 4.36 268 Calendar year 1942 2,057.6 19 3. 5 5.64 4,080 Janu ary 4,706.3 2,560 4.1 L 152 9,330 Febr 2,021 720 10 72.2 4,010 Marc 2,245 583 24 72 .4 4,450 Apri 594 26 14 19.6 1,180 May. 329.0 15 6., 5 10.6 653 June 232.0 9 6.. 5 7.73 460 July 204.0 6.5 5 6.56 405 Augu 168.6 6 4.2 S 5.44 334 SeptUOMT...... 157.1 6.5 4.C) 5.24 312 Water year 1942-43 ...... 11,040.7 2,560 3,'J 30.2 21,900 Peak discharge.- Jan. 23 tli30 a.m.) 11.000 sec. -ft. ; Feb. 22 (7s30 p.m.) 8,000 sec. -ft.; Bar. 3 (11 p.m.) 1,820 sec.-ft.; Mar. 4 (4 a.m.) 1,200 sec.-ft. t Discharge measurement made on this day. f Computed on basis of partly estimated gage-height record. Hote.- Ho gage-height record Jan. 24 to Feb. 15, Feb. 24, 25, Har. 5, 6, 23-25; discharge computed on basis of thirteen discharge measurements, recorded high-water marks, probable shape of recession curve, and weather records. Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour. 66 SANTA ANA RIVER BASIN Meeka & Daley Canal near Colton, Calif. Location.- Water-stage recorder, lat. 34°04I 00", long. 117°18'40", in Sen Bernardlno Grant, on Colton Avenue, 1 mile downstream from point of diversion from Warm Creek and 1 mile east of Colton, San Bernardlno county. Records available.- September 1920 to September 1943. Average discharge.- 23 years, 10.6 second-feet. Extremes.- Maximum dally discharge during year, 23 second-feet July 8; ro flow for several 1920-43: Maximum dally discharge, 25 second-feet Mar. 2, 1938; nc flow at times. Remarks.- Records fair. Canal diverts water from right bank of Warm Creek li miles north- east of Colton for Irrigation In vicinity of Colton, Riverside, and Corona. Discharge, in second-feet, water year October 1942 to September 1945 Day Oct. Nor. Dec. Jan. Feb. Mar. Apr. May June Jviy Aug. Sept. 1 80 18 19 0.4 0 10 19 20 IS 2 SO 19 19 .3 0 18 19 IS IS 3 80 19 19 .3 0 19 80 18 18 4 20 18 19 .3 0 19 SO 18 19 5 19 18 18 .8 0 19 20 17 17 6 19 18 19 .1 0 19 21 17 18 7 19 18 18 .2 0 16 20 16 20 8 18 18 18 .1 0 16 83 18 20 9 IS 18 18 4.1 0 16 88 18 19 10 18 16 18 d.l 0 19 20 17 18 11 18 16 N19 d.l 0 18 80 18 IS 12 18 17 IS d.l 0. 18 18 18 18 13 18 18 IS 4.4 0 80 17 18 19 14 18 IS IS S.6 0 19 16 18 17 15 18 IS 18 14 0 19 14 18 IS 16 18 IS 18 12 0 18 14 18 IS 17 18 18 18 11 0 18 13 18 IS 18 18 17 18 12 o 18 16 IS IS 19 18 SO 19 18 8.3 18 16 IS IS 20 18 19 19 11 6 SO 16 18 80 21 18 19 17 10 9 SO 9.6 18 SO 22 18 80 18 6.6 15 20 16 20 18 23 18 SO 20 0 11 IS 16 19 is 24 18 1ft 18 0 7.6 17 14 19 18 25 18 SO 7 0 11 18 17 J8 19 26 18 eo .6 0 18 19 16 19 20 27 19 80 d.6 0 14 20 17 19 19 28 16 20 d.5 0 IS IS 18 18 20 29 17 20 d.5 0 18 18 16 19 19 30 18 eo .5 0 12 18 18 19 19 31 18 - .5 .0 IS - 19 18 - Seeoad- Month M. Minimus ,___ Runoff In \ foot-dayB ***11 acre-feet October » -5«8 20 16 18.3 1,130 Nov*mb*r...... 667 80 re 18.6 1,100 December...... 438.7 SO .5 14.2 870 Calendar year 1942 ...... 5,063.6 21 0 13.8 10,030 Jamjar? 103.7 14 0 3.36 206 February 0 0 0 0 0 arch. 0 0 0 0 0 April 0 0 0 0 0 fry 135.8 15 0 4.38 269 June ...... ; .... 637 80 10 17.9 1,070 July ...... 537.6 23 9.6 17.3 1,070 St...... 6S3 80 16 18.2 1,120 Septwtoer...... 667 20 17 18.6 1,100 W»ter year 1942-43 ...... 3,997.7. S3 0 11,0 7,940 d Doubtful gage-helgbt record; discharge interpolated or extrapolated. Time basiai Pacific war time. To eowrert war time to standard time, subtract 1 hour. SANTA. ANA. RIVER BA.SIN 67 Day Creek near Etlwanda, Calif. Location.- Mater-stage recorder and broad-crested weir, lat. 34°11'00", long. 117°32'25", in swt see. 8, T. 1 N., R. 6 W., a quarter of a mile downstream from confluence of two main forks and 6 miles nortn of Etiwanda. Altitude of gage, about 2,940 fee1". DralTiage area.- 4.8 square miles. Records available.- January 1929 to September 1943. Average discharge.- 14 years, 5.29 second-feet. Extremes.- Maximum discharge during year, 1,500 second-feet Jan. 23, estimated from slope-area determination and unit runoff; minimum daily, 0.4 second-foot many days. 1929-43: Maximum discharge, 4,200 second-feet Mar. 2, 1938, by rainfall-runoff studies; minimum, 0.1 second-foot Dec. 19, 20, 1933. Remarks.- Records good except those for periods of no gage-height record, which are fair, and those for Jan. 22 to Mar. 22, vrtilch are poor. Etiwanda Water Co. diverted 1,390 acre-feet above station during year. Discharge, in second-fact, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Awe. Sept. 1 fO 6 O.S O.4 0.8 26 ta26 16 13 4.7 3.1 3.0 8.3 a S .£ .4 .6 83 ta21 16 13 4.2 ' S.B 3.1 1.9 .4 .6 21 ,*3.e f58 15 13 4.1 2.8 ,1.2 1.9 .5 #6 SO 109 15 14 4.0 , 2.8 ,1.2 1.8 a « .7 .5 .6 17 86 15 13 3.8 2.8 3.2 1.8 6 a « .7 .6 .« 16 56 16 13 3.9 2.8 3.1 1.8 .7 .5 .5 14 51 15 13 4.0 2.8 3.1 1.7 8 .7 .5 .5 13 47 16 14 3.7 2.0 3.0 1.7 .7 .5 .5 12 ta43 15 14 3.6 2.0 3.0 1.7 10 .6 .5 .5 11 38 15 13 3.6 2.8 8.9 1.7 11 a « .< .5 .5 10 ta34 15 11 3.6 2.8 2.R 1.7 a « .6 .5 .5 9.5 31 15 7.5 3.6 2.8 1.7 13 a 4 .6 .5 .5 9 29 14 7 3.6 2.8 2.7 1.7 f t .6 .4 .5 8.5 27 14 7.5 3.3 2.8 8.7 1.7 15 .7 .4 .6 8.5 ta85 15 7.5 3.3 2.0 2.6 1.7 16 6 .7 , .6 8.5 25 15 6.5 3.1 2.9 2.fi 1.7 17 s .7 , .6 8.5 ta86 14 6 3.2 2.9 2.5 18 8 .7 . .6 8.5 «25 14 6 3.3 £.8 8.5 1.7 , .6 8 24 14 5.5 3.2 8.8 2.5 20 6 .8 .6 8 a24 14 5.5 3.1 8.8 2.6 1.6 21 s .7 f -.7 12 , 23 14 5 3.0 8.8 8.6 1.6 22 .* . a!04 49 taSS 14 4.8 3.0 2.6 2.6 1.6 23 5 . 400 44 81 14 4.6 3.0 2.6 8.6 1.5 4 .6 .6 88 46 20 13 4.6 3.1 2.6 5.5 28 4 .8 1.6 43 40 20 14 4.8 3.1 8-. 7 2.5 1.8 26 4 .5 .9 31 a36 80 13 4.6 3.2 2,8 2.5 27 6 .5 1.0 taSS 33 10 13 5 3.2 2.8 2.5 4.0 a .5 1.0 84 29 19 13 5 3.2 2.9 2.5 3.9 8 .4 1.0 84 .. 19 13 4.7 3.1 3.0 .3 .4 .9 20 _ 18 13 4.7 3.1 3.0 R.5 3.7 8 - .8 29 - 17 4.7 3.0 2.6 Second- Runoff in Month rcot-days Maxiaua U*. Mean aore-feet October Mdveaber Deoeaber...... 18.C 1.6 .'.1 .58 36 Calendar year 1942 ...... 509.1 9 ,41 1.40 1,010 ~ ~787 0 t May...... S p AC S i 84 i 3 0 Septeaber...... 62.5 4.0 1.!> 2.08 124 Water year 1942-43 ...... 3,440.6 400 .41 9.43 6,820 f«8Jf dA»,PMS6S.j,- J«n- 83 (4i30 ..».) lrBOo «M.-ft_, i?.^. trp. (« . ,) us ,««,._ft r , ffar . 3 p.m.) 175 sec.-ft. t Discharge measurement made this day. a go gage-height record; discharge Interpolated cr computed on basis of eight discharge aeasure- aents and records for San Antonio Creek near Claremont and Cueanonga Creek near Upland. f Computed on basis of partly estimated gage-height record. "*" --- -- Pacific war tine. To convert war tine to standard time, subtract 1 hour. 68 SANTA ANA. RIVER BASIN Cucamonga Creek near Upland, Calif. Location.- Water-stage recorder and broad-crested weir control, lat. 34°10'15", long. 117U37'55", In NEi sec. 17, T. 1 N., R. 7 W., 6 miles north of Uplard. Altitude of gage, about 2,550 feet. Drainage area.- 10.1 square miles. Records available.- December 1928 to September 1943. Average discharge.- 14 years (1929-43), 9.28 second-feet. Extremes.- Maximum discharge during jrear, 1,400 second-feet Jan. 23 (gc.ge height, 6.36 feet), by slope-area method; minimum, 1.7 second-feet Oct. 5, 6. 1928-43: Maximum discharge, 10,300 second-feet, Mar. 2, 1938, from rainfall-run off study; minimum, 0.8 second-foot July 16, 17, Aug. 28 to Sept. IF. Oct. 2-6, 1934. Remarks.- Records good except those for period of no gage-height recorc1 , which are fair. No diversion or regulation above station. Discharge, in second-feet, water year October 194B tc September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 1.9 2.8 2.6 3.3 35 33 19 16 ie 7.5 5.5 4.3 2 2.0 2.7 2.6 3.3 32 28 19 16 10 7 6 4.5 3 2.0 2.7 2.7 3.3 30 8S 19 16 10 7 7 4.5 4 1.9 2.8 2.8 3.3 27 275 19 16 10 7 7 4.5 5 1.8 2.8 2.8 3.2 26 240 21 16 10 7 6.5 4.5 6 1.8 2.8 2.6 3.1 24 153 28 14 10 6.5 6.5 4.6 7 1.9 2.7 2.S 3.1 f22 107 25 14 9.5 6.5 6 4.6 6 1.9 2.7 2.8 3.1 a25 81 26 13 9.5 6 S 4.7 9 2.0 2.6 2.6 3.1 19 76 25 13 9 6 S 4.8 10 2.1 2.6 2.7 3.1 a!7 67 24 13 9 6 5.5 4.8 11 8.2 2.6 2.7 3.1 a!6 56 24 13 9.5 6.5 5.5 4.S 12 3.6 2.6 2.6 3.1 f!5 48 23 13 9.5 6.5 5.5 4.8 13 2.6 2.6 2.6 3.1 f!6 45 22 13 9.5 6.5 5.5 4.8 14 2.4 2.6 2.6 3,.l 16 43 22 13 9 6.5 5.5 4.8 15 2.4 2.8 2.6 3.1 15 41 22 13 8.5 7 5.5 4.8 16 2.3 2.6 2.6 3.2 15 38 22 13 8.5 7 5.5 4.6 17 £.3 2.9 2.7 3.3 15 37 21 13 8.5 7.5 5.5 4.5 18 2.4 2.9 2.8 3.4 14 44 20 13 8.5 7.5 5.5 4.2 19 2.4 3.1 2.9 3.4 14 37 20 13 8.5 7.5 5 4.1 20 2.3 3.0 2.8 3.4 14 37 19 13 8.5 7.5 5 4.1 21 2.3 2.8 2.6 4.0 32 34 19 12 8.5 7.5 5 4.0 22 2.4 2.7 2.8 115 128 34 18 12 6.5 7.5 5 3.9 23 2.6 2.6 2.9 550 131 32 17 12 S.S 7.5 5 3.8 24 2.8 2.6 3.7 140 113 29 17 12 8.5 7 5 3.9 25 2.9 2.6 5.5 70 76 27 17 12 8 6.5 5 4.6 26 2.6 2.6 3.8 48 66 26 17 12 7.5 6.5 4.8 4.8 27 2.8 2.6 3.5 54 52 25 17 12 7.6 6.5 t.7 4.8 28 3.9 2.6 3.4 38 43 24 17 12 7.5 6 4.5 4.7 29 4.0 2.6 3.4 33 22 17 12 7.5 6 1.5 4.5 30 3.3 2.6 3.4 35 _ 20 17 11 1 f.5 6 i.5 4.3 31 - - - 3.0 3.4 43 , 19 11 5.5 4.3 Ranof t in Month t%Z&* ^"» KininuB Mean 'aere-fMt October...... ;...... 76. £ 4.0 1.13 0*s«*o ACS 152 November...... 81.4 3.1 2.15 2.71 161 December...... 92.9 5.5 2. 5 3.00 184 Calendar year 1942 ...... 1,476.0 11 I.I3 " 4.05 2,930 Janu ary. . 1,194.1 550 3.3L 38.5 2,370 Febr 1,048 131 14 37.4 2,080 March. .! ...... 1*368 2V 5 19 60.3 3,710 April...... 613 28 17 20.4 1,220 May...... 406 16 11 13.1 805 June ...... 265.0 10 5'.."7« i 8*33 ? 526 July...... 209.0 7.5 5 6.74 415 August...... 168.3 7 4.:5 5.43 334 September. .. ^ ...... ^...... 134.6 4.8 3.13 4.49 267 Rater year 1942-43 ...... 6,157.1 550 1. 3 16.9 12, 220 Peak dlaeharga.^ Jan. 23 (4:30 a.m.) 1,400 sec. -ft.; Feb. 82 (7j30 p.m.) S07 sec. -ft.; Mar. 4 (1 a.m.) 307 sec. -ft.; Bar. 5 (1 a.m.) 319 sec. -ft. a No gage-he -ght record; discharge Interpolated on basis of records for San Arfconlo Creek near Clarenont . f Computed on basia of partly estimated gage-height record. Time basis ; Pacific war time. To convert war time to standard time, subtract 1 hour. SANTA ANA RIVER BASIN San. Jaclnto River near San Jaclnto, Calif. Location.- Staff gage, lat. 33a44'06", long. 116°49'45", In SEi sec. 13, T. 5 S., R. 1 E., at highway bridge, 8J miles southeast or San. Jaclnto. Altitude of gage, about 1,960 feet. Drainage area.- 140 square miles. Records available.- October 1920 to September 1943. Average discharge.- 20 years (1921-25, 1927-43), 26.8 second-feet. Extremes.- Maximum discharge observed during year, 1,420 second-feet Mar. 4; minimum, less tnan o.l second-foot several periods. 1920-43: Maximum discharge, 45,000 second-feet (estimated) Feb. 16, 1927; no flow (luring several months of each year except 194Q, 1942, 1943. Remarks.- Records fair. Gage read once dally. Several diversions above station. Plow regulated by Lake Hemet. Cooperation.- Gage-height record furnished by Lake Hemet Water Co. Discharge, in second-feet, water year October 1942 to September 1943 l Day Oct. Nov. .Dec. Jan. Feb. Har. Apr. Bay June July Aig. Sept. 1 1.0 42 32 76 51 0.5 0.4 0.1 2 1.0 35 32 74 33 .5 .4 .1 3 .7 30 17 72 33 .5 .4 .1 4 .7 30 788 47 34 .5 .4 .1 5 .7 25 644 47 34 .5 .4 a. 3 6 .7 23 457 100 34 5 .4 a,3 7 .7 its 279 141 34 .5 .4 a.7 8 1.0 44 242 144 31 .5 .4 a.7 9 1.0 36 242 127 28 .5 .4 a.7 ' eO.03 1.0 27 190 107 10 23 >e0.02 .5 ,4 a.7 11 1.0 27 237 107 14 .5 .4 a.7 12 1.0 24 147 102 14 .5 .4 a.7 13 > eO.OE 24 147 90 9.5 .5 .4 a.7 14 24 147 SS 6 .5 .4 a.7 15 24 107 as 6 .5 .4 a.7 >e0.02 e.og 16 24 106 88 2.7 .5 .4 a.7 17 12 1O6 36 aS.O .5 .4 18 .3 12 238 73 al.4 .5 .4 19 .2 12 193 62 a.7 .5 .4 20 .S 1 e.02 11 159 59 16 .5 .4 21 .2 .3 36 110 57 .S .5 ,4 22 a410 47 117 58 .5 .5 .4 23 Ij090 85 103 56 .5 .5 .4 e.Ol 24 203 57 100 56 .5 .5 .4 25 50 77 55 93 55 e.Ol 4.4 .4 .4 > e.03 26 13 77 44 93 47 4.4 .4 .4 27 1O 579 44 S7 51 4.4 .4 .1 28 4.9 121 32 87 51 .5 .4 .1 29 3.8 57 75 51 .5 .4 .1 30 3.8 57 _ 75 45 .5 .4 .1 31 - 2.3 42 - 75 - .4 .1 - Second- Runoff in Month fee t-days Maximaii Minimum Mean acre- feet October...... 0.62 _ _ o.osr 1.2 November...... 1.41 0.2 _ . .047 2.8 December...... 88.28 50 - 2.S5 175 Calendar year 1942 ...... 3,434.42 101 - 9.55 6,910 Janu ary...... 2,724.24 1,090 87.9 5,400 Febrnary...... 909 85 11 32.5 1,800 Marc i...... 5.525 7S8 17 17S 10,960 Apr! 1...... 2,305 144 45 76.S 4,570 Hay 391.42 51 12.6 776 June ...... 33.08 16 - 1.10 66 July 14. S .5 .4 .48 29 Augu;St...... 10.9 ,4 .1 .55 S3 September...... 8.14 .7 .27] 16 Water year 1942-43 ...... 12,011.89 1,O9O - 32.9 23,820 e Daily discharge less than 0.1 sec.-ft. a No gage-height record; discharge interpolated or computed on basis of one discharge measurement and weather records. Time baais; Pacific war time. To convert war time to standard time, subtract 1 hour. 70 SANTA ANA RIVER BASIN San Jaclnto River near Els1nore, Calif. Location.- Water-stage recorder, lat. 33°39'45*, long. 117P17'45", near east line of sec. 9, T. 6 S., R. 4 w., 2 miles east of Elsinore and 2i miles upstream from Elslnore Lake (low-water stage). Altitude of gage, about 1,270 feet. Drainage area.- 717 square miles. Records available.- January 1916 to September 1943. Average discharge.- 27 years, 20.4 secend-feet. .' * Extremes.- Maxlmm discharge during yew, 1,170 second-feet Mar. 5 (gajw height, 7.0S reetj; minimal dally, less thaB.OJ. SBcond-foot Oct. 1-23. - . '-. , 1916-43: haxlBRMNJischarge, 16^000 se . la yo«ni*-f»»t. w»Ur y«*r October 1948 to September 1943 «»Ur »«ar 1942-45 ...... 3,T71.79 a Ito ^age-height record; discharge interpolated. e Daijy discharge leas than 0.1 second-foot. f Coaputad on baaIs of partly eatimated gage-height record. «iai Pacific liar time. To convert war time to standard time, SANTA MA RIVER BASIN 71 Elslnore -Lake at Elslnore, Calif. Location.- Staff gage, lat. 33°40'35", long. 117021'30", on northeast shore, IB La Laguna GrUHt, at Aloha Beach Club, Elslaore, Riverside County. Datum of .gage Is 1,830 fest above mean sea level. Gage heights have been rwlueed to elevations above ae-ui sea level. * * ' *" '''''-., ',.Records available.- Dee.e«ber 1916 to September 1943. > - , ExtreaeaU Maximum elevation recorded during year, 1,264.4-ieet »r. 9, 16, 30; »lni*ua recorded, 1,251.6 feet Sept. 12s. . " ? -jelti-43: MauttBtt* elevation recorded, 1.265.6 feet Har. 20-25. 1916, durt^ period cessation -£*saiTvd^- Elslno"re'Lake -overfloas Into TemeBeia'l CreeR v&leh Is lt% 'outlet/ orfly during and after years of unusually heavy ralrtfall.1 There-has been no outfldW sine-) June^O, 1917. History of lake prior to 1916 Is published In Jtfate'ivsuppiy, Paper 441, ^,su«BBrj of.~tSe high'stages that have occurred 1916 to.,l9&2 Is -contained in Vateir-iupfly. Paper , 72 SANTA ANA RIVER BASIN Temescal Creek near Corona, Calif. Location.- Water-stage recorder, lat. 33050'30H , long. 117°30 I4511 , In E7. Sobrante De San Jaclnto Grant, half a mile upstream from site of old Blue Diamond Quarry and 4 miles southeast of Corona, Riverside County. Altitude of gage, about 730 feet. Prior to Feb. 11 at datum 6.0 feet higher. Records available.- January 1929 to September 1943. Average discharge.- 14 years, 6.46 second-feet. Extremes.- Maximum discharge during year, 3,600 second-feet Jan. 23 (gage height, 5.20 feet}, by slope-area method; minimum dally, 0.6 second-foot Oct. 28-30, Nov. 4-7, Jan. 16-21. 1929-43: Maximum discharge, 14,900 second-feet Mar. 2, 1938, by slope-area method; no flow during part of most years. Remarks.- Records good except those for period of no gage-height record, which are fair. Many diversions and several storage reservoirs above station. .Cooperation.- Thirty-one discharge measurements furnished by Orange County Flood Control District and five discharge measurements furnished by Metropolitan Water District of Southern California. Discharge, in second-feet, water year October 1942 tc September 1943 Day Oct. Ncv. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 o.e 1.0 1.0 1.1 a30 37 33 12 9 5.5 2.9 2.4 2 .9 1.0 1.0 1.1 a 28 37 34 12 8.5 5.5 2.6 2.4 1.0 .9 .9 1.1 a26 102 32 12 S.5 5 2.4 2.9 5 1.0 .6 .9 1.0 a24 f291 31 IS S.5 5 a2.1 3.2 5 1.0 .6 1.0 1.1 a23 f!55 32 13 f9 5.5 al.9 2.9 6 1.0 .6 1.1 1.1 a22 f!25 33 13 a9 5.5 al.9 2.4 7 1.0 .6 1.1 1.1 a20 105 31 13 a9.5 5 a2.0 2.4 8 1.0 .9 .9 1.0 al9 94 30 12 a9.5 4.5 a2.0 2.4 9 1.0 1.1 1.0 1.1 a!8 85 29 12 alO 4.2 a2.1 2,4 10 .9 1.2 1.0 1.1 a!7 72 29 12 a9.5 3.6 a2.1 a2«4 11 .9 1.2 1.1 1.0 f!5 57 28 12 f9 3.8 2.3 a2.4 12 1.0 1.2 1.1 1.0 15 56 29 11 7 3.8 a2.3 a2.4 13 1.0 1.1 1.1 1.0 15 56 29 10 6.5 3.6 a2,4 a2.4 14 l.O 1.0 1.2 .9 13 55 29 9 7.5 3.2 a2.5 ten 15 1.0 1.1 1.8 .8 13 47 29 10 6.5 3.5 a2.5 2.4 16 .9 1.1 1.1 .6 12 32 30 11 6 4.5 a2.6 a2.4 17 .9 1,2 1.2 .6 12 35 29 all 4.2 4.S f2.6 a2.B 18 .9 1.5 1.0 .6 12 42 29 all e 6 1.9 a2.5 19 1.0 1.5 .9 e 12 42 d24 all 6 5.5 2.1 a2.6 20 1.0 1.0 .9 .6 12 40 d20 &10 5.5 5 2.4 f2. 6 21 .9 1.0 1.0 .6 13 40 dl6 rio 6 4.5 2.1 2.9 22 .9 1.0 1.0 36 64 38 d!5 10 5.5 4.5 2.1 2.4 23 ,9 .9 .9 1,500 97 36 dl5 10 5 4.5 2.1 2.6 24 .8 1.0 .8 a 295 45 35 d!4 11 5.5 3.8 2.4 2.6 25 .8 . 1.0 1.1 a!40 48 34 d!2 10 5 4.2 2.6 2.6 26 . .3 .9 1.1 a 105 46 33 d!2 e.s 5.5 3.5 2.4 2.9 27 .3 .9 1.1 alOO 44 32 d!2 8.5 5.5 3.5 2.1 2.9 28 .6 1.0 1.1 a70 39 32 d!2 9 6.5 5.2 2.1 2«6 29 .6 1.0 1.1 a52 _ 32 fll a. s 6 3.2 2.1 2.1 30 .6 1.0 1.1 a 41 _ 34 11 8.5 5.5 2.9 2.1 2.1 31 .9 - 1.1 a 55 - 36 - 8.5 - 2.9 2.6 - Second- Runoff in Month foot-days Maximum Minima Mean acre-feet October...... OWA f . QO 1.0 0.6 0.90 55 Hovenber. .... 30.1 1.5' .6 1.00 60 December ...... 32.1 1.2 .8 1.04 64 Calendar year 1942 ...... 963.0 9 .5 2.64 1,910 January 2,393.1 1,500 .6 77.8 4,750 February...... 754 97 12 26.9 1,500 March...... 1,946 291 32 62.8 5,860 April...... 720 34 11 24.0 1,430 «r...... 331.5 13 8.5 10.7 658 June ...... 210,2 10 4.2 7.01 417 July...... 133.5 6 2.9 4.31 265 " August ...... 70.3 2.9 1.9 2.27 139 September...... 76.1 3.2 2.1 2.54 151 Water year 1942-43 ...... 6,724.7 1,500 .6 18.4 13,350 a No gage-height record; discharge computed on basla of three discharge measurements, slope-area determination, precipitation records, and interpolation. d Doubtful gage-height record; discharge computed on basis of three discharge measurements and Interpolation. f Computed on basla of partly estimated gage-height record. Time basis; Pacific war time. To convert war time tc standard time, subtract 1 hour. SANTA ANft. RIVER- BASIN 73 San Antonio Creek near Claremont,. Calif. Location.- Water-stage recorder and broad-crested weir control, lat. OflS'SO", longv 117*'40'00", in NWiSEi sec. 36, T. 2 N., R. 8 W., half & mile upstream from Stobftarn California Edison Co-.'s Sierra power plant and 8 miles northeast of Claremcnt. Altl- trato of gage, about.3,400 feet. Drainage area.- 16.9 so^tare miles. Records available.- Harch 1901 to September 1943,. Average discharge.- 26 years (1917-43), 11.6 second-feet. Average combined discharge of creek and conduit, 26 years (1917-43), 24.3 second-feet. 4 Extremes.- Maximum discharge during year, 2,100 second-feet Jan. 23 (gage heifht, 5.68 feetj, by slope-area determlBation; minimum, 1.1 second-feet Sept. 12, 19. 1917-43: I'&xlmum discharge, 21,400 second-feet ffer. 2, 1938, by rainfall-runoff studies; minimum, less tnan 0.1 second-foot for several days In October 19F^. Remarks.- Records good. Southern California Edison Co.'s conduit diverts water above station (see p. 75 }. Discharge, in second-feet, water year October 1942 to September 1945 Da? Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June Jttly Att*. Sept. 1 1.4 1.7 1.4 1.9 77 80 67 66 29 9 2.4 1.4 2 1.5 1.7 1.4 1:9 77 74 67 66 28 8.5 2.5 1.4 3 1.4 1.7 1.4 l.S 74 102 66 -64 29 8 2.5 1.4 72 219 62 eg 27 7.6 2.5 1.4 5 1.3 1.7 1.6 1.9 69 228 66 61 26 6.6 2.5 1.4 6 1.3 1.7 1.6 1.8 62 251 69 58 24 6.6 2.4 1.4 55 187 62 56 22 6.6 2.1 1.4 8 1.3 1.7 1.6 1.7 56 171 62 64 21 6 2.0 1.4 9 1.4 1.7 1.6 1.7 51 14» 56 62 20 a6. 5 2.0 1.3 10 1.5 1.7 1.6 1.7 47 136 50 60 20 as 2.0 1.3 11 1.6 1.7 1.6 1.7 44 181 45 48 2O a4.8 2.0 1.3 12 1.7 1.6 1.6 1^7 42 139 44 47 20 a4.3 a2.0 1.3 13 1.6 1.6 1.7 1.7 42 147 42 46 20 a3. 9 B.2.0 1.3 14 1.6 1.6 1.7 1.6 40 142 42 50 18 a3. 5 al.9 1.3 15 1.6 1.6 1.6 1.6 37 132 44 48 17 a3. 3 al.9 1.3 16 l.S 1.7 1.6 1.7 3? 123 46 46 16 a3.2 1.9 1.3 17 1.4 1.7 1.6 1.7 37 113 47 45 15 a3.0 1.9 1.3 18 1.4 1.7 1.6 '1.8 37 109 48 42 15 aS.O 1.9 1,3 19 1.4 1.8 1.6 1.8 37 100 60 40 16 a2.9 2.3 l.S 20 1.4 1.6 1.5 1.8 37 96 51 37 14 a2.8 1.7 1.3 21 1.4 1.5 1.5 2.6 50 93 52 36 14 a2.7 1.7 1.3 22 1.4 1.5 1.5 129 99 100 52 35 14 a2.6 1.7 1.3 23 1.4 1. 1.5 606 125 93 53 34 13 a2.5 1.6 1.3 24 1.5 1. 1.9 132 121 84 59 33 13 a2.5 1.6 i.e 25 1.5 1. 2.6 127 106 75 66 32 13^ a2.5 1.6 1.6 26 1.5 1. 2.1 121 84 74 64 32 12 a2.5 1.5 1.6 27 1.5 1. 2.0 119 87 74 61 38 11 a2.5 1.5 1.6 28 1.9 1.4 1.9 117 85 72 62 32 10 a2.5 1.5 1.6 29 1.8 1.4 1.9 100 70 64 30 10 2.5 1.5 1.6 30 1.8 1.4 1.9 94 70 66 30 9.5 2.5 1.5 1.5 31 1.7 1.9 85 69 30 2.5 1.5 Second- Runoff in Month foot-days Uaximua Minimum Mean acre-fset Goto bar...... 46.5 1.9 1.3 1.50 92 Move 47.8 1.8 1.4 l.ffl 95 DeoeBber ...... 51.8 2.6 1.4 1.67 103 Calendar year 1942 ...... 1 ...... 807.5 5.5 1.3 2.2^ 1,600 Janu Lary 1,667.8 606 1.6 53.8 3,310 Febi 1,787 125 37 63.8 3,540 Marc 3,673 231 69 118 7,290 Apr! 1,685 69 42 56.2 3,340 May. l:::::::::::::::::::.::::f::::::::::::: 1,393 66 - 30 44.9 2,760 June 535.5 29 9.5 17.8 1,060 Jnlj 131.5 9 2.5 4.2* 261 Augu 59.6 2.5 1.5 1.93 118 September...... 41.7 1.6 1.3 1.3? S3 ffa ter year 1942-43 ...... 11,120.2 606 1.3 50.5 22,050 Peak discharge.- Jan. 23 (5 a.m.) 2.100 sec. -ft. f Feb. 22 (7:30 n.m. ) 171 sec. -ft.? liar.. 4 U p.m. 323 sec.-ft. a No gage-height record; discharge computed on basis of three dlsc&arge measurements, Interpola- ^ion, change in diversion, and comparison with Cucamonga Creek near Upland. 74 SANTA Am RIVER BASIN Combined discharge. In second-feet, of San Antonio Creak and Soutaena California Bdi»on Co,'* conduit neap Claremont, Calif., water year October 1042 to Se$teir«*p 1*13 January.. Eebruary. March April May June July August September Tl»» baalat Pacific wap tl»e. To convert wap tltte to atandard tine, subtract 1'nour. , /. j; <"/*' -,/ .--v-T' " '- 4 *i* .'V*V-' "'vt'-:,,.- ..' v"-- --' * - ,*\*v* " .. ,V.- cv! ^ < - ';;'H- ;--t^3-- t*j. *lf ft ' . f . **- .* ' , . T * r ^yJJ ^"'~1l- >.Vi SANTA ANA RIVER BASIN 75 Southern Calltornla Edison Co. 'a conduit near ClarfflBont, Calif. Location.- At Southern California Edison Co.'s Sierra power plant, lat. 34°12'45", long. II7 ID3[J'15", In NWiSI$ sec. 36. T. 2 N., R. 8 W., li alles downstream from Intake and 8 miles northeast of Clarement. Altitude of gage, 3,160 feet. Recorda available.- January 1917 to S»gteaber 1942. Average discharge.- 26 years, 12.7 second-feet. RaaarkB . - Conduit diverts water froft San Antonio Creek In SBi sec. 25, T. 2 N,, R. 8 W., 1 'Mile upstream from gaging station on San Antonio Creek near Claremont. Water Is used for power development an<| tfcen-for liylgfttlon. Discharge Is computed from rec- ,ord of output in -kilowatts of S I«ET*. power .plan£, - 5 . -' - Cooseratlon.- Records furnished" *y Southern California Edison Co. DUctorg*. in jopad-tort. Wjtgr y««r Octohar 1948 to S»pt«rt>f r 1V43 Tiae has la; Faeiflc war time. To convert war time to st«ad«rd't^jne, sutitraot 1 hour. « /;l :-,*" 4? v '- 76 SANTA ANA RIVER BASIN Santiago Creek near Villa Park, Calif. Location.- Wateir-stage recorder, lat. 33°49'10", long. 117°46l'3a*, in E^ see. 13, T. 4 S., R. 9 W., five-eighths of a mile downstream from diversion dam of Serrano and Car penter Irrigation Districts and If miles northeast of Villa Park. .Altitude of gage, about 420 feet. Drainage area.- 83.8 square miles. Recorda available.- June 1920 to September 1943. Average discharge.- 23 years, 10.2 second-feet. Extremes.- tfeximum discharge during year, 2,420 second-feet Jan. 23 (gfge height, 4.17 feet}, from rating curve extended above 380 second-feet by logarlthtrtc plotting; no flow for several periods. 1920-43: mximum discharge, about 11,000 second-feet Feb. 16, 1P27 (gage height, 8.4 feet), by slope-area method; no flow for several months each yeer. Remarks.- Records fair. Diversions above station by Irvlne Co. and Serrano and Carpenter Irrigation Districts. Flow completely regulated by Santiago Reservctr. Discharge, in second-feet, water year October 1942 to Septenbe*-1943 Day Oct. Nor. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0 1.7 168 4.4 1.2 » 0 2 0 .9 120 4.3 1.3 0 3 0 .4 195 4.2 .7 0 4 0 .3 1,000 4.1 0 5 0 .4 977 4.0 0 6 .4 795 3.7 0 7 .6 564 3.7 0 8 1.0 430 3.7 0 9 .6 339 3.8 0 10 .e 264 3.8. 0 11 > eO.02 .8 213 3.8 0 12 .8 166 3.6 0 13 .8 147 3.9 0 14 .8 136 3.9 0 15 .9 120 3.9 0 > eO.02 eO.03 > e.l eO.l . eO.06 16 .9 107 3.9 Q 17 .9 101 3.4 0 18 .9 110 3.2 0 19 .9 97 3.0 0 20 .6 95 2.9 0 21 1.0 88 e.7 0 22 371 171 66 1.6 0 23 - 718 342 76 1.6 o 24 . 29 412 66 1.6 .3 26 9 375 68 1.6 .3 26 3.4 266 99 1.6 .3 27 6.6 177 81 1.4 .3 28 1.8 lee 81 1.4 .3 28 1.7 96 1.5 .3 30 1.6 _ , 67 . 1.3 .3 31 - 8.7 - 4.6 - - - Secoad- Runoff in Month foot-days Maxim* Minimum Mean acre-feet October . 0.008 0.5 Novenber...... _ .02 1.2 December...... 93 - - .03 i.e Calendar year 1942 ...... 11*39 0.5 0 .031 23 i?8JKi&ry 37.0 2,270 412 .3 68.4 3,800 arch...... 4.6 223 13,730 law 1.3 .19 12 3.0 M .1 6.0 _ _ .06 3.1 0 0 0 0 0 September...... 2.1 .3 0 .07 4.2 Water year 1942-43 ...... 10,089.76 1,000 0 27.6 20,010 e Daily discharge 0.1 second-foot OP less. Hote.- Doubtful or no gage-height record Feb. 10-19, Mar. 30 to Apr. 16, Apr. 18-22, pept. 2-30; 1 discharge computed on basis of six discharge measurements, fragmentary gage heights, interpolation, extrapolation, and engineer's field observations. Tine basis: Pacific war time. To convert war time to standard time, subtract 1 hour. i SANTA ANA. RIVER BASIN 77 Santiago Creek at Santa Ana, Calif. Location.- Water-stage recorder> lat. 33°46'00M , long. 117°5S'45", In Santiago d? Santa Ana Grant, at end of Baker Street, Santa Ana, Orange County. Altitude of gag?, about 120 feet. Records available.- January IS® to September 1943. Average discharge.- 14 years, 8.75 second-feet. Extremes..- Maximum discharge (taring year, 3,440 second-feet Jan. 23 (gage height, 6.73 reet), from rating curve extended above 900 second-feet by logarithmic plotting on basis of relation between fflean velocity and mean depth; no flow during most of year. 1929-43: Ifexlmum discharge, 4,400 second-feet mr. 2, 1938 (gage iieight, 7.40 feet), from rating curve extended above 1,200 second-feet by logarithmic plotting; no flow during most of each year. Remarks.- Records fair except those for periods of doubtful or no gage-height record, which are poor. Diversions above station by Irvlne Co. and Serrano and Carpenter Irrigation Districts. Cooperation.- Twenty-three discharge measurements furnished by Orange County Flood Con- troi District. Discharge, in second-feet, water year October 1942 to September 1945 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. Itey June July Aug. Sept. 1 0 0 1.0 103 14 5.5 2 0 0 0 95 11 0 3 0 0 0 168 12 3.7 4 0 0 0 760 18 14 5 0 0 0 605 IS 11 6 0 0 0 465 17 5.5 7 0 0 0 345 IS 7 8 0 0 as 246 12 S 9 0 0 a6.5 800 12 S 10 0 0 a7 174 fll e 11 0 0 as 143 all 7 12 D D aE.O 117 al2 2.0 13 0 0 0 93 a!3 0 14 0 0 0 72 al4 0 15 0 0 0 59 al4 0 16 0 0 0 56 f!5 0 17 0 0 a4.0 69 al£ 0 18 0 0 aS 77 alO 0 19 0 0 f9.5 Bl 6.5 0 20 0 0 2.0 67 6.5 0 21 0 0 84 47 7 0 22 0 439 178 46 10 0 23 0 91B 307 47 7.5 0 24 0 a35 451 44 18 0 25 di.o alO 320 41 31 0 26 0 22 198 69 12 0 27 0 25 134 68 7.S 0 28 0 a2.0 109 69 3.5 0 29 0 al.O * 84 9.5 6 30 0 al.,0 75 9.5 0 31 0 15 - 21 - 0 Second- Runoff in llonth foot-days Maximum MiniBum Mean acre-feat October...... 0 0 0 0 0 November...... 0 0 0 East Fork San Gabriel River near Camp Bonlta, Calif. Location.--Water-stage recorder, lat. 34614'12", long. 117°48'30", In SEi sec. 22, T. 2 N., R. 9 w., 1,000 feet upstream from mouth of Graveyard Canyon, P| miles upstream from confluence with west fork, and 24 miles west of Camp Bonlta. Records available.- December 1932 to September 1943. Average discharge.- 10 years (1933-43) 99.2 second-feet. Extremes.- Ifexlmum discharge during year, 25,000 cecond-feet (estimated) Jan. 23 (gage height, 10.50 feet); minimum, 10 second-feet at times In October. 1932-43: Maximum discharge, 46,000 second-feet Ifer. 2, 1938, from rating curve extended above 21,300 second-feet by logarithmic plotting (computed by Geological Survey); minimum, 1.5 second-feet Oct. 1, 1934. Cooperation.- Records furnished by Los Angeles County Flood Control District, through warH. E.emergency. Hedger, chief engineer, and M. E. Salsbury»* acting *> chief engineer* during *> the Discharge, in second-feat, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June Jul" Aug. Sept. 1 14 13 13 le 326 434 288 212 126 64 42 32 14 13 13 16 290 400 219 202 126 68 43 32 3 13 13 14 16 * 295 640 212 193 120 68 43 31 4 12 14 14 15 260 2,300 206 190 US 62 44 50 5 12 14 14 15 260 1,600 214 180 114 62 44 30 6 18 14 14 15 240 1,100 248 168 112 60 43 30 7 12 14 14 15 230 960 216 168 108 60 42 30 8 12 14 15 15 280 770 246 170 106 62 40 30 9 12 13 16 15 210 720 248 170 106 64 38 30 10 12 13 16 16 200 680 225 166 104 64 37 SO 11 12 12 14 15 190 630 216 160 106 60 37 89 12 15 12 14 15 180 580 216 160 110 58 37 88 13 14 12 14 16 175 640 212 160 108 56 37 88 14 14 12 13 15 176 600 209 160 104 55 37 88 15 13 12 13 14 175 470 212 156 98 66 36 88 16 12 14 14 14 ISO 440 212 162 06 56 34 88 17 12 14 14 14 170 420 212 148 94 S3 34 87 18 13 14 14 14 160 400 212 145 98 53 36 87 19 13 20 14 14 145 377 200 146 88 61 96 M 20 12 19 15 14 160 365 812 145 88 48 36 8« 21 11 16 15 21 860 363 800 142 SO 46 36 88 22 11 15 14 3,000 _ 960 382 209 136, 78 48 34 .23 12 14 14 5,800 830 3OO 216 138 76 46 34 88 24 18 14 17 1,000 700 281 219 132 72 44 33 89 25 13 14 41 600 685 874 222 138 68 43 33 30 26 12 14 20 460 560 266 212 138 58 43 33 30 27 12 14 19 430 610 266 218 130 68 43 32 30 28 16 14 17 400 479 270 212 128 68 48 38 89 29 15 14 16 360 278 216 125 66 41 38 88 30 14 13 17 350 - 266 218. 185 66 41 38 88 31 14 - 16 400 - 246 180 41 32 Second- Runoff in Month foot-days MaxiBOB Miniaua Ifean acre-fwt October...... 399 18 11 18.9 791 November...... 418 20 18 13,9 889 December...... 486 13 16.7 9«4 Calendar year 1942 ...... 10,674 96 11 89.8 81,180 January 13 008 OfWJve fi/V> 14 420 25,800 February ...... 9,124 950 146 386 18,100 March...... 17,338 8,300 846 669 April ...... 6,611 E46 206 817 12^910 May. . . 4,775 212 120 164 9,470 June ...... 8,886 186 66 94.8 6,610 July...... 1,637 64 41 52.8 3,200 August ...... 1,134 44 38 36.6 8,860 Septenber...... 865 32 26 88.8 1,780 Water year 1942-43 ...... 58,521 5,800 11 ISO 116,100 Time baalat Pacific war time. To convert w«r time to standard tlae, rubtraot 1 boor. SAN GABRIEL RIVER BASIN - 79 San Gabriel River near Azusa, Calif. Location.- water-stage recorder, lat. 34°10'10", long. 117°53'16n , in SWi sec. 13, T. 1 rL, R. 10 W., 1 mile downstream from Morris Dam and 3 miles northeast of Azusa. Alti tude of gage, about 870 feet. Drainage area.- 211 square miles. Records available.- 1894 to September 1943. Average discharge.- 47 years (1896-1943), 118 second-feet. Average combined discharge or river and diversions, adjusted for storage and evaporation in Morris Reservoir and San Gabriel River flood-control reservoirs 1 and 2, 48 years (1895-1943), 167 second- ExtremgB.- Maximum discharge during year, 12,100 second-feet Jan. 23 (gage height, 9.27 reetjy minimum daily, 2.0 second-feet Dec. 29-31. 1894-1943: Maximum discharge, 65,700 second-feet Mar. 2, 1938, by compu^tlon of flow over spillway at Morris Bam; no flow for several months in each year 1894-1936, Remarks.- Records good. Flow regulated by San Gabriel flood-control reservotrr 1 and 2, ana by Morris Reservoir of Metropolitan water District of Southern California. Azusa Canal {formerly power canal of Southern California Edison Co.) diverts* abovw hlghwater line of Morrl3 Reservoir at point 3 miles above station. Cooperation.- Forty-three discharge measurements furnished by Los Angeles County Flood uontroi District, through H. E. Hedger, chief engineer, and M. E. Salisbury, acting chief engineer during the war emergency. Discharge, in second-feet, water year October 1942 to September 1949 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Auf. Sept. 1 26 22 2.1 2.] 539 1,030 657 1,040 86 88 e.s 6.5 2 26 22 2.1 2.! 539 465 445 1,040 274 88 .6 6.5 3 26 22 2.2 2.i 1,410 1,460 15 1,040 295 88 e.e 6.5 4 24 16 2.2 2.£ 712 4,500 9 1,040 295 88 e.s 6.5 5 22 5.6 2.2 2.2 659 6,070 3.5 622 291 70 e.s 6.5 6 22 3.0 2.2 2.2 660 4,590 8 304 291 48 .5 7 7 22 2.9 2.2 2.S 652 2,270 8 304 160 48 e.s 7 8 22 2.7 2.1 2.! 571 2,240 8 273 11 48 T 7 9 22 2.5 2.1 8.J 14 2,230 3 254 11 48 T 6.5 10 21 2.S 2.1 8.2 118 1,780 8 254 44 48 T.5 6.5 11 20 2.5 8.1 2.2 14 1,030 3 231 148 48 T.5 6.5 12 22 2.4 2.1 2.8 13 1,060 7.5 194 217 49 T.6 6.5 IS 25 2.4 2.1 2.2 13 1,070 7 132 217 49 e.s 6.5 14 24 2.4 2.1 2.2 13 1,070 6.5 182 217 49 11 11 IS 24 2.4 2.1 2.1 95 1,060 6 182 217 49 11 24 16 24 2.4 S.I 8.2 304 1,O50 6 182 217 49 11 24 17 25 2.4 8.1 2.4 904 1,010 6 132 101 56 e 24 18 85 2.4 8.2 2.S 308 918 5.5 185 12 23 T.5 24 19 25 2.5 2.2 2.S 221 712 5 186 227 23 T.5 24 5» 26 2.4 Z.Z 2.7 268 925 330 135 173 18 t 24 21 26 2.2 2.2 2.7 548 628 817 167 173 7,5 7 24 22 26 2.2 2.2 27 960 570 817 125 134 7.5 6.5 24 23 26 2.1 8.8 0,060 1,910 531 817 93 88 7.6 e.s 24 24 25 2.1 8.6 0,370 2,060 468 817 11 88 7.6 6.5 84 , 25 22 2.1 2.7 5,190 2,270 468 817 11 88 7.5 e 24 26 22 2.1 2.2 3,290 2,520 468 825 11 12 7.5 e 24 2T 22 2.1 2.2 1.530 1,380 489 849 11 9.6 7*5 e 23 28 23 S.I 2.1 952 1,090 668 849 11 10 7.5 e 83 29 22 2.1 2.0 512 669 955 11 10 7.5 6 85 30 22 2.1 2.0 350 1,090 1,040 11 90 7 e 89 31 22 - 2.0 546 - 801 11 7 Runoff in acre -feet Seeond- Month Kaxinm Minimum Mean Saa Qabriel I !an Qrbriel River fbot-d*ya River and Jausa Canal t 780 26 20 23.5 1,460 1,610 144.6 22 2.1 4.82 887 1,540 87. 1 2.7 8.0 2.16 133 1,840 3,773.4 370 2.0 10.3 7,480 40,080 Jamu iry...... 32,873.3 10,370 2.1 1,060 65,200 78,940 Febn» 20,165 8,580 13 720 40,000 46,960 March...... 43,348 6,070 465 1,393 85,930 86,940 April...... 10,165.0 3. 040 5 339 80,160 26,810 T...... 8,539 1^040 11 275 16,940 16,640 4,146.5 295 9.5 138 8,280 9,590 July...... 1,196.5 OBftfl 7 36.7 8,250 6,250 222.0 11 6 7.16 440 4,490 477.0 24 6.5 15.9 946 9,180 Water year 1942-43...... 122,014.5 10,370 2.0 334 248,000 882,600 t C««blned runoff of river and Azusa canal, adjusted for storage and evaporation la Morris Reser voir and releases fro« San Gabriel River flood-control reservoirs 1 and 2 using record furnished by tos Angeles County F»ood Control District. These figures of runoff are equivalent to cott'ned rec ords of Saa Gabriel River and Southern Calif. Edison Co.'s canal aa published from 1894 to 1993. Tlae basis; Pacific war tU». To convert war tine to standard tine, subtract 1 hour. 80 SAJJ GABRIEL RIVSR BASIN San Gabriel River below Santa Fe Dam, near Baldwin Park, Calif. Location.- Water-stage recorder, lat. 34°06'40", long. 117°58'20", at shilling basin of ' outlet of Santa Fe Dam, 0..3 mile north of Arrow "Highway and Is miles north of Baldwin Park, Los Angeles County. Altitude of gage, about 400 feet. Drainage area.- 231 square miles. Records available.- October 1942 to September 1943. Extremes.- Maximum daily discharge during year, 6,700 second-feet Jan. 24; no.flow several Remarks.- -Records gotxl sioept those for periods of no gage-height reeorl, which are poor. FTow~regula*ed by Ban BaTjrtsl Hood-control reservoirs 1 and 2 and by Ifcrrls Reservoir of Metropolitan Water District of Southern California. Canal diversions above station. Cooperation.- Eight discharge measurements furnished by corps of Engineers, U. S. Army and Seventeen discharge measurements furnished by Los Angeles County Flood Control District, through H. E, Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the war emergency. Discharge, la second-feet, water year October 1948 to September 1943 Day Oct. HOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0 450 786 426 957 0 2 0 450 311 238 957 e5.5 3 0 1,100 1,160 43 946 «63 4 0 560 3,67O 1.5 935 869 3 0 510 4,930 0 531 e68 6 0 520 3,000 0 e25 e66 7 c 510 1,960 0 e46 e47 8 0 430 1,900 0 e34 e.2 9 0 ne 1,850 0 7 0 10 0 8.5 1,550 0 e3.9 0 11 0 9.5 1,030 0 d.6 0 12 0 1.0 1,010 0 0 e7 13 0 0 1,010 0 0 e24 14 o 0 «89 0 0 e23 15 0 0 968 0 0 e!8 16 0 27 957 0 0 e!3 17 0 202 935 0 0 e7 18 0 202 844 o 0 0 19 0 102 510 0 0 e7.5 20 0 219 » 778 137 0 el.O 21 0 596 459 658 0 0 22 14 1,090 377 «58 0 0 83 6,500 1,770 330 658 0 0 24 6,700 1,920- 246 667 0 0 25 3,800 1,940 216 676 0 0 26 8,800 2,110 216 685 0 0 27 1,400 1,270 223 667 0 0 28 860 873 385 631 0 0 29 460 - 410 800 0 0 30 320 - 780 968 0 0 31 460 - 552 - 0 .gecond- Runoff in Month fcot-days Maxima Minima Mean ao re-feet November...... December...... 0 0 0 0 0 Calendar year ...... _ _ . _ _ March...... Of £ X 136 69 990 968 May...... fiQ QST July...... September ...... tf 0 0 0 0 Water year 1942-43 ...... 88,271.2 6,700 0 242 175,100 e Qatea in Santa Pe Dam open f oi> diverting water to Rio Hondo for replenishing ground-water supplj records of diversion furnished by loa Angeles County Flood Control District. f Computed on basis of partly estimated gage-height record. Sote.- Do gage-height record Oct. 3. to Feb. 8, Apr. 20, 21; discharge computed on basis of record* of dam operation and record's for station near Azusa. Time baalsi Pacific war time. To convert war tine to standard tine, subtract 1 hour. SAN GABRIEL RIVER BASIN 81 San Gabriel River at Plco, Calif. Location.- Water-stage recorder, lat. 34°00'20", long. 118°04'06", In Paso De Bartolo teaBtt at Beverly Boulevard Bridge, half a mile east of Pico, Los Angeles County. Altitude of gage, about 180 feet. Records available.- October 1928 to September 1943. .Average discharge.- 15 years, 52.6 second-feet. Extremes.- Maximum discharge during year, 14,800 second-feet Jan. 23 (gage height, 9.10 feet')';" no flow at times. 1928-43: Maximum discharge, 22,700 second-feet Mar. 2, 1938; no flow for long periods each year. Cooperation.- Recc)rds furnished by Los Angeles County Flood Control District, through H. E. . Hedger, onler < snglneer, and M. E. Salsbury; acting chief engineer during the war emergency. Disc:harge. In second-feet, water year October 1942 to September 1943 Daj Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0 7.5 11 32 499 1,240 381 859 11 11 7 0 2 0 4.0 3.4 29 486 700 2S6 686 14 11 7 0 3 0 2.6 3.4 25 1,260 1,800 145 846 18 10 5.5 .8 4 o ' 1.9 3.7 25 337 5,200 132 816 81 9 5 0 5 0 1.3 4.0 26 455 6,260 132 512 25 8 l.S 1.8 6 0 3.1 4.6 29 402 5,320 132 81 29 7 1.6 1.5 7 0 4.0 1.9 35 398 2,600 138 '8686 32 6 0 .6 8 0 8.0 1.0 40 374 1,880 145 36 5 3.9 .6 9 0 .2 1.6 38 118 1,580 104 92 ' 32 4.0 3.3 .6 10 0 0 2.S 35 97 1,270 118 111 18 5 4.9 .5 11 0 1.1 3.1 35 86 1,340 111 111 25 5.5 2.7 0 12 0 3.4 3.7 36 92 920 104 97 29 6 2.5 0 13 0 3.1 4.0 32 97 860 97 92 29 7 2.2 0 14 0 3.1 3.1 29 92 875 135 92 18 7 1.1 0 15 0 4.0 2.7 30 104 767 111 86 25 6 1.2 0 16 0 6,5 0 45 86 860 104 86 21 5 5 0 17 0 6 0 42 92 801 104 76 29 6 .9 0 18 0 6 0 40 81 920 125 70 29 9 0 .S 19 0 7 0 33 76 610 104 48 11 S 0 .9 20 0 6.5 .9 35 81 631 125 36 11 9 0 .6 21 0 3.7 .7 45 258 296 672 36 11 12 0 .1 22 0 4.0 .5 1,650 1,370 246 672 36 11 5 1.8 0 23 o 3.7 1.3 10,500 3,160 219 631 36 12 7 .1 0 24 0 4.0 13 7,000 1,980 210 742 36 IS 7 0 0 25 0 3.7 43 4,000 8,000 228 678 25 12 8 0 0 26 0 6.5 50 3,200 2,200 237 686 26 12 7 0 1.3 27 0 4.0 47 1.9OO 1,620 246 788 85 12 5.5 o 1.4 28 1.9 3.1 43 683 1,140 392 935 18 12 4.0 1.5 .1 29 7 12 38 450 392 778 14 12 5 2.5 0 30 4.6 25 35 216 590 766 14 12 5.5 ' 2.1 0 31 6 33 785 486 14 6 0 Second- Uaan RttBOff In Month j foot-days Maxiau. Minimum 119811 acre-feet Goto1 ber...... 19.5 7 0 0.6? 39 Nova nber 143.9 25 0 4.81 285 Deoei*ber...... 358.8 50 0 11.6 712 Calendar year 1942 10,059.6 96 0 27.6 18,960 Janu ary 81,100 10,500 25 1,003 61.69O Febr uary 18,040 2,200 75 644 35,780 Maro h...... 39,966 6,260 210 1,289 79,270 Aprl 1...... 10,119 935 97 337 20,070 May. 5,047 846 14 163 10,010 June 581 36 11 19.4 1,150 July 215.5 12 4.0 6.9-5 427 Augu St...... 63.6 7 0 2.0- 126 Sept ember...... 11.6 l.S 0 .SI 23 Water year 194S-4S ...... 105,665.9 1O.5OO 0 289 209,600 Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour. 82 SAN GABRIEL RIVER BASIN San Gabriel River at Spring Street, near Los Alamitos, Calif. Location.- Water-stage recorder, lat. 33°48'40", long. 118°05'30n , In Los Alamitos Grant, at Spring Street Bridge, li miles west of Los Alamitos, Orange County. Altitude of gage, about 22 feet. Records available.- October 1936 to September 1943 in reports of Geological Survey. 1927-36 in files of Los Angeles County Flood Control District. Average discharge.- 16 years, 32.8 second-feet. Extremes.- Maximum discharge during year, 14,600 second-feet Jan. 23 (gag height, 13.80 teet); no flow during most of year. 1936-43: Maximum discharge, 27,300 second-feet (estimated) Mar. 2, 1938; no flow during most of each year. t Cooperation.- Records furnished by Los Angeles County Flood Control District, through H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the war emergency. Discharge, in second-feet, water year October 1942 to September 1943 Daj Oct. Hotr. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 0 209 1,000 448 655 2 0 196 500 243 710 0 867 1,500 138 655 4 0 166 4,000 56 626 5 0 234 5,OOO 52 513 6 0 274 5,220 63 128 7 0 257 2,270 55 74 8 0 284 1,970 52 44 65 1,990 52 40 10 0 IS 1,540 46 38 11 0 15 1,010 42 33 12 o 11 940 42 27 13 0 9.5 890 44 23 14 0 7.5 872 46 21 16 0 7.6 917 43 16 16 0 7 810 \ 43 14 17 0 5.G 872 43 14 18 0 4.5 764 43 10 19 0 4.( 546 43 6 20 0 .5 748 43 2.4 i ' 21 0 28 519 444 0 22 139 970 412 599 0 23 9,570 1,880 336 596' 0 24 7,440 1,780 255 603 0 25 5,740 1,660 180 60S 0 ' 26 2,770 1,860 141 596 O 27 1,460 1,600 138 626 0 28 579 800 245 564 0 29 867 _ 576 644 0 30 71 _ 666 663 0 31 647 - 656 0 , - » Seoond- Runoff in Month f exit-days MM imam Minim* - r-xw acre-feet Deoesber...... ~ ...... 0 0 ' 0 0 0 Calendar year 1942 ...... 4,346.2 111 0 11.9 8,680 March...... 5,220 138 1,199 73,750 252 15,080 tear...... 3,649.4 710 0 US 7,240 0 0 0 0 0 0 0 0 September...... r ...... 0 0 0 0 0 Water year 1042-43 ...... 86,304.9 9,570 0 248 175,800 Time basla: Pacific war time. Te oonrert war tl»e to standard tlw>, subtract 1 boor. 8SSSS S38s!g! *! o H *-( inou5«*t»into t H I oO OOOO1O J'OjgmcJ OCrlOtOtO «tO»/HH O> (D * H 3> O» * tH O> fc. »t aI &!?< rt 0>0>««Hj«j«H 0' 84 SAN OABRIEL 'RIVER BASIN Rogers Creek near Azusa, Calif. Location.- Water-stage recorder, lat. 34°09r'55n , long. 117°54'20", In NWiWWi sec. 23, T. 1 N., R. 10 W., half a mile upstream from mouth and 2| miles north of Azusa, Altitude of gage, about 800 feet. Drainage area.- 6.4 square miles. Records available.- May 1916 to June 1917 (discharge measurements only), October 1917 to September 1943. Average discharge.- 26 years, 3.46 second-feet. Extremes.- Maximum discharge during year, 1,700 second-feet Jan. 23 (ruge height, 8.5 feet), from rating curve extended above 460 second-feet by logarltVmlc plotting; no flow for many days. 1917-43: Maximum discharge, about 2,600 second-feet Apr. 7, 1926; no flow for parts of each year. Remarks.- Records good except those for Jan. 22-31, Mar. 3-6, which ai-e fair. Entire flow diverted above station at times. Cooperation.- Twenty-two discharge measurements.furnished by Los Angles County Flood Con- trol District, through H. E. Hedger, chief engineer, and M. E. Salrbury, acting chief engineer during the war emergency. Discharge, in second-feet, water year October 1942 tc September 1943 Day Oct. Nor. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0 0.2 o.os 0.1 32 39 14 7 3.4 1.3 0.4 0.2 2 0 0 .04 .1 29 37 14 6.5 3.7 1.4 .4 .3 0 0 .04 .2 26 f80 13 6.5 3.5 1.4 .4 .2 4 0 0 .06 .1 24 f238 13 a. 5 3.2 1.4 .5 .2 b 0 0 .09 .2 22 fl97 13 6.5 3.2 1.3 .6 .2 6 0 0 .04 .2 IS f!23 17 6,5 3.4 1.2 .5, .2 7 0 0 .06 .2 15 a90 12 3 2.6 .8 .6 .2 8 0 0 .09 .1 18 f80 14 6 2:5 .8 .4 .2 9 0 0 .13 .1 16 70 14 5.5 2.4 .8 .3 0 10 0 0 .04 .1 14 62 13 5.6 2.2 .8 .3 0 11 0 0 .03 .02 12 56 12 6.5 2.4 1.4 .3 .1 12 0 0 .07 .OS 11 49 11 4.9 5.7 l.E .3 .1 IS 0 0 .07 .0! 10 43 11 4.$ 8.5 .9 .3 .1 0 0 .05 ,0! \ 10 39 10 4.5 E.4 1.8 .3 .1 0 0 .03 .04 ' 9.6 54 10 4.6 2.1 .0 .4 .1 16 0 0 .05 .0! 9 E9 10 4.3 2.0 .0 .4 .1 17 . 0 0 ,03 .02 8 ,E8 9.6 4.1 8.0 .9 .4 .1 ia 0 0 .06 .0! 7.5 51, 9.6 3.7 1.8 1.9 .3 0 19 0 .3 .07 .06 7 27 9.5 3.5 1.7 .8 .4 0 20 0 .2 .07 .07 7 27 9.5 3.4 1.7 .8 .4 0 21 0 .1 .11 .6 17 25 9.5 3.4 1.6 .7 .4 .1 22 0 .1 .09 f645 SS 24 9 3.5 1.5 .7 .3 .3 23 0 .1 .06 a6S4 105 22 9 3.4 1.5 .5 .3 .1 24 0 .1 .3 al!4 112 81 8.5 3.2 1.5 .4 .3 0 25 o .1 2.0 a 58 S7 20 S 3.2 l.« .4 .3 .1 26 0 .04 .6 a42 66 19 8 3.4 1.5 .4 .2 .1 27 0 .03 .3 a56 54 je 8 3.5 1.2 ' .6.4 .2 .2 28 ft. .03 .1 a26 52 17 7.5 3.4 1.5 .2 .2 29 .8 .02 .2 a21 17 7.5 3.8 1.5 .4 .2 .2 30 ' .4 .03 .1 a46 _ 16 7 3.3 i.2 .4 .a .2 SI .3 " .00 fS5 - IS - 5.0 .6 .S - "1 Second- Runoff la Month foot-daye Maximum Minimum Mean acre-feet 1.6 December...... 5.06 2.0 .03 .163 10 Calendar year 1942 ...... 140.57 4.2 Q .385 279 J&Sstt&ry 1 628 S7~ a-t ft March...... 15 -Rl _K 637 Hay...... 3 V 1.$ &.TQ Jaly...... g September .'...... '...... 3.9 .3 0 .13 7.7 Water year 1942-43 ...... 4,632.13 684 0 12. S 9,290 Peak discharge.- Jan. 23 (2 a.m.) 1.700 sec. -ft. f Feb. 22 Greet near Duarta, Calif. Location,. Water-slaga- recorder and1 broad-cr&steeti weir, lat. 34°10'00ir , long. IIVS&'SS", In SWfSHt see- IS, T. I M., H. 10 W.» three-qusorters of a mile upstream from mouth of canyon and 3 miles northeast of Duarte. Altitude of gage, about 1,000 t^pt (t ~om topographic map). Drainage area.- 6.6 square miles. S&eortts avatlabls.- Jbly to September 1916, July 1917 to September 1945. distaaree..- ^ years f 1317-43], 4.64 second-feet. Extremes.- discharge during year, 2,100 second-feet Jan. 23 (gage height, 5.78 feet), frtaa of slope-area determination and weir computation; minimum daily, o.l second-foot Oct. 1-9. 1916-43: Jfexinuai discharge, about 2,180 seconcl-feet Apr. 4, 1925; no fiow during periods in 1819-21, 1924, 1929-30. Remarks.- Records fair. No diversion or regulation above station. > -CooperBtlon.- Nineteen discharge measurements furnished by Los Angeles County Flood Con- trol District, through H. E. Hedger, chief engineer and M. E. Salsbury, acting- chief engineer during the mr emergency. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nor. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.1 0.6 0.6 0.6 46 28 15 8 4.7 2.5 1.6 1.1 2 .1 .6 .6 .6 28 24 14 7,5 4.9 2.5 1.6 1.1 3 .1 .5 .6 .6 24 96 12 7.5 4.9 2.5 1.7 1.0 4 .1 .5 .6 .6 22 263 10 7.5 4.7 2.5 1.8 1.0 5 .1 .5 .6 .6 19 211 13 7.5 4.3 2.5 1.8 1.0 6 .1 .5 .5 .6 16 122 20 7.5 3.9 2.5 1.7 1.0 7 .1 .5 .6 .6 14 89 13 7.5 3.7 2.3 1.6 .9 8 .1 .4 .6 .6 18 68 16 7 3.7 2.2 1.5 .9 9 .1 .4 .6 .6 15 58 16 6.5 3.5 2.2 1.5 1.0 10 .2 .4 .6 .6 13 51 15 6 3.6 2.2 1.5 1.2 1.5' 11 .2 .4 .6 .6 13 42 14 6 3.7 2.0 1.1 12 1.5 .4 .6 .6 12 39 13 5.5 4.1 2.0 1.4 1.1 13 .4 .3 .6 .6 11 34 12 5.5 4.1 2.3 1.4 1.1 14 .4 .3 .6 .6 10 32 11 5.5 4.1 2.3 1.4 1.1 15 .S .4 .6 .6 9 31 11 5.5 3.5 2.5 1.4 1.1 16 .3 .4 .6 .6 8.5 29 10 5.5 3.1 2.7 1.3 1.1 17 .3 .4 .6 .7 7.5 28 10 5.5 3.0 2.5 1.3 1.1 IB .3 .4 .6 .7 7 29 10 5 3.0 2.5 1.3 1.0 19 .3 1.4 .6 .6 6.5 26 10 4.9 3.0 2.3 1.3 1.0 20 .2 .8 .6 .6 24 10 4.9 3.0 2.2 1.3 1.0 21 .2 .6 .6 1.8 23 22 9.5 4.7 3.0 2.2 1.3 1.0 22 .2 .6 .6 874 139 21 9.5 4.5 3.0 2.1 1.3 1.0 23 .8 .6 .7 771 138 20 8.5 4.5 3.0 2.0 1.3 1.0 24 .3 .6 1.3 108 144 19 8.5 4.5 3.1 1.8 1.3 1.0 25 .4 .6 3.E fB® 97 18 8 4.5 3.1 1.7 1.2 1.0 26 .4 .6 .8 49 66 17 8 4.7 3.0 1.7 1.1 1.1 27 .4 .6 .6 46 46 17 8 4-7 2.9 1.7 1.1 1.2 28 1.3 .6 .6 2$ 34 17 8 4.5 2.7 1.7 1.0 1.2 29 .8 .6 .6 23 « 17 8 4.5 2.7 1.7 1.0 l.E 30 .6 .6 .6 39 - 17 8 4.7 2.5 1.7 1.0 1.2 31 .6 - .6 73 - 16 - 4.7 1.6 1.1 - Seoond- F-noff in Month fcot-days Maximum Mininum Mean a^re-feet October...... 10.5 1.3 0.1 0.34 21 UnvAMihaf -Lo»yTCQ 1.4 .3 .53 52 December...... 22.2 3.2 .6 .72 44 Calendar yoar 1942 366.4 8.5 .1 1.00 726 January 2,079.0 874 .6 67.1 4,120 February...... 993.0 144 6.5 35.5 1,970 arch...... 1,625 863 16 49.2 5,020 April...... 3S9.0 20 8 11.3 672 May...... X t nafo*O a 8 4.6 5.70 351 June-...... 105.4 4.9 2.5 3.51 209 July...... 67.1 2.7 1.6 2.16 153 August...... 42.6 1.8 1.0 1.37 84 Septeaber...... SI. 8 1.2 .9 1.06 .69 later y«*r 194E-43 ...... 5,408.3 874 .1 14.8 10,780 Peak discharEe.- Jan. S3 (2 a.m.) 2,100 see. -ft.: Jan. SI (1 a.m.) 103 sec. -ft.; Feb. 22 (1:30 p.m.) 397 aeo.-ft.; Feb. 24 (8 a.m.) 234 see.-ft.; Mar. 4 (liSO a.m.) 472 sec.-ft.; Har. 4 (11 p.a.) 418 sec.-ft. f Computed on basis of partly estimated gage-height record. Time baais; Pacific war time. To convert war time to standard time, subtract 1 hour. 86 SAN OASUEL RIVER BASIN Sawplt Creek near Monrovia, Calif. Location.- water-stage recorder and broad-crested weir control, lat. 3A°10'25", long. 117 u59'20Vin NEiSWi sec. 13, T. IN., R. 11 W., 0.1 mile downstream from Monrovia Creek. Altitude of gage, about 1,100 feet (from topographic map). Drainage area.- 5.3 square miles. Records available.- November 1916 to September 1943. Average discharge.- 26 years (1917-43), 1.42 second-feet; Including diversion by Monrovia pipe line, 20 years, 2.83 second-feet. Extremes.- Maximum discharge during year, 441 second-feet Jan. 23 (gag« height, 3.90 feet); no flow during several periods. 1916-43: Maximum discharge, about 2,000 second-feet Apr. 7, 192C, estimated from flow of Rogers Creek; no flow during parts of most years. Remarks.- Records good. Regulation at flood-control dam above station and diversions by city of Monrovia. Cooperation.- Twenty-six discharge measurements furnished by Los Angeles County Flood Control District, through H. E. Hedger, chief engineer, and M. E. Sr.lsbury, acting chief engineer during the war emergency. Records of diversion to Monrovia pipe line furnished by city of Monrovia. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0 0 0 0.7 18 10 8 " 3.5 1.3 0.2 0.2 2 0 0 0 .6 41 S.5 7.5 3.5 1.5 .2 .2 3 0 o 0 0 IS 25 7.5 3.5 1.4 .2 .2 4 0 0 o 0 13 111 8 3.7 1.5 .3 .2 5 o 0 0 0 13 89 13 3.4 1.3 .3 .1 6 0 0 0 0 15 72 12 2,9 1.2 .3 .1 7 0 0 0 0 15 67 9.5 3.7 1.1 .4 0 8 0 0 0 0 14 49 12 3.2 1.1 a. 3 0 9 '0 0 0 0 7.5 30 10 3.0 1.1 a. 3 0 10 0 0 .1 0 4.7 26 8 2.9 1.1 a. 3 .1 11 0 0 .9 0 3.9 22 7 2.6 1.3 a. 3 d.l 12 0 0 1.1 0 .1 20 7 2.2 1.4 a. a d.l 13 0 0 1.2 0 , .1 18 7 2.1 1.1 .8 d.l 14 0 0 1.2 0 .2 17 7 2.6 1.0 .8 d.l IS a .2 1.2 0 .2 16 7 8.8 9 .2 d.l 16 0 .1 .6 0 .3 14 7 2.0 .8 .a A.l 17 o'0 0 .7 0 >3 14 6.8 1.9 .9 .8 'S.l 18 0 .9 0 .1 14 6.5 1,6 .7 .2 4.1 19 0 .3 .9 0 .1 14 6.5 1.8 .7 .3 d.l 20 0 0 .9 .1 .2 14 6.5 1.3 .6 .4 td.l 21 0 0 .9 .3 1.9 12 6 1.5 .6 .4 d.l 22 0 0 .9 d!03 38 12 5.6 1.5 .5 .4 d.l 23 0 0 .9 d207 29 11 4.7 1.2 .5 .3 .2 24 0 0 I'l/ 9 76 31 11 4.7 1.3 .6 .2 .2 25 0 0 f39 22 10 5 1.3 .5 .3 d.l 26 0 0 1.0 6.5 18 10 5 1.4 .4 .2 d.l 27 0 0 .8 3.1 14 9.5 4.7 1.4 .3 .2 .1 28 .3 0 .7 2.1 12 9 4.1 1.5 .2 .2 0 29 .1 0 .7 6.5 8.5 4.3 1.3 .2 .8 0; 30 0 0 .7 10 _ 8 4.1 1.3 .2 ,S 0 31 0 - 1 .7 24 -, 8 1.3 " .9 0 Seoond- Runoff In' Diversion la Month foot-days Haximnn Minimum Kma aore-feet , acre-feett October ...... 0.4 o.s 0 0.01 0.8 75 November ...... 6 .3 o .02 1.8 79 December ...... 19.0 1.2 0 .61 58 80 Calendar year 1942 ...... 46.9 2.0 0 .13 98 I;ITO January ...... 476.9 207 0 15.4 946 65 February ...... 329.7 41 .1 11.8 664 105 QA R March ...... 759.5 111 8 159*9 1,810 let April ...... 211.6 13 4.1 7.06 480 148 wyIbitt ...... 68.4 S.7 1.2 2.81 136 288 June ...... 26.0 1.5 .2 ,87 52 SSS July ...... 8.1 .4 .2 ..26 16 ' 250 August ...... 3.0 .2 0 .10 6.0 226 September ...... 0 0 0 0 0 189 Water year 1942-43 ...... 1,903.2 207 ' 0 ' 5.21 3,780 1,880 t Diversion to Monrovia pipe line. a No gage-height record; discharge computed on basis of two discharge measurements, recorded range in stage', and interpolation. " ' d Doubtful gage-height record.; discharge Jan. 22-23 computed on basis of flow at control and esti mated bypass flow; discharge Aug. 11-22, 25, 26 computed on basis of four discing* t»asureaants and trend of gage-height record. f Computed on basis of partly estimated gage-height record. Time basis; Pacific war time,. Tc convert war tine to standard tins, subtrae*; 1 boor. SAN GABRIEL RIVER BASIN 87 San Dlmas Creek near San Dlmas, Calif. Location.- Water-stage recorder and broad-crested weir, lat. 34°08'45", long. H7°46'35", in swtNEi sec. 25, T. IN., R. 9 W., at mouth of San Dlmas'Canyon, 0.7 mllfl downstream from flood-control reservoir and 3 miles northeast of San Dlmas. Altitude of gage, about 1,245 feet. Drainage area.- 18.3 square miles. Records available.- April to September 1916 (discharge measurements only), December 1916 to September i943. ^ Average discharge.- 26 years (1917-43), 5.00 second-feet. / Ext rentes.-r Maximum discharge during year, 1,970 second-feet Jan. 23 (gage height, 4.38 reet), from rating curve extended above 700 second-feet on basis of critical velocity over broad-crested weir; minimum dally, 0.1 second-foot Jan. 3-13. 1916-43: Maximum discharge, 4,250 second-feet Mar. 2, 1938, from records of releaee at flood-control reservoir; no flow for several months during most years. Remarks.- Records good. Flow regulated by flood-control dam above station. Fan Dlmas Water Co. diverts water Just below gage for Irrigation. COO' jration.- Fifty-seven discharge measurements furnished by Los Angeles Courty Flood control District, through H. E.. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer, during the war' emergency. Discharge, in second-feet, water year October 1948 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. Hay June July Arg. Sept. 1 4.1 0.6 0.6 0.2 81 24 1.4 6.5 9 6.5 7 6.6 2 4.0 .5 .6 .8 17 8.7 3.8 6.5 9.6 6.5 7 6.6 3 4.0 .6 .6 .1 16 74 10 5.5 9 6.5 7 6.6 4 4.0 .6 .6 .1 14 341 10 3.9 8.5 6.5 7 6.5 5 4,0 .5 1.1 ,1 12 302 11 3. 7 8 6.5 7 6,5 6 4.0 .5 1.6 .1 10 236 21 3.9 7.6 6.5 7 6.S 7 3.9 .6 1.7 .1 10 130 29 4.0 7 6.'5 7 6.6 8 3.7 .5 1.7 .1 6 94 29 4.0 7 6.5 7 6.6 9 3.7 .5 1.7 .1 1.0 82 29 4.1 7 6.6 7 6.5 10 3.7 .5 1.8 .1 4.6 70 22 4.6 7 6.5 7 6.6 11 3.6 .5 1.9 .1 20 69 12 5.5 7 6.5 7 6.6 12 3,7 .4 1.9 .1 20 51 12 6.5 7.5 6.5 7 6.5 13 3.8 .4 1.8 .1 16 66 12 6.5 8 6.5 7.5 6 14 3.4 .4 2.0 .5 6.S 56 ll 6.5 7.6 6.6 7.5 6 15 3.0 .4 1 8.4 .7 8 43 11 6.5 7.6 7 ' 7.5 6.5 16 8.8 .4 2.4 .8 8 37 10 6.6 7.5 7 7.6 6.6 17 8.8 .4 2.5 ,S S 48 10 6.5 7.6 7 7.6 6.5 18 2.8 .4 2.3 .9 8 40 10 6.5 a7.6 7.5 7 6.5 19 S.8 .5 2.3 1.7 8 31 10 6.5 a7,6 7.6 7 6.6 20 2.4 .6 2.3 g.7 8 28 7.6 8 a7.S 7.6 7 6.6 21 1.9 .5 2.3 2.4 8.5 24 , 6.5 7 a7 7.6 7 6.5 22 1.2 .6 2.2 222 41 26 6.5 9.5 . a? 7 7 6 23 .6 .6 1.9 828 131 1.7 6.6 8.6 a7 7 7 6 24 .6 .5 .8 117 123 1.7 6.5 9 7 7 7 6 25 .5 .5 .4 34 64 1.7 6.5 9 7.6 7 7 6 26 .5 .6 .2 84 36 1.6 6.6 S.5 7 7 6.6 6 27 .6 .5 .2 26 35 1.6 6.. 5 8.6 7 7 6.6 6 28 .6 .5 ,2 23 36 1.6 6.6 e.s 7 7 , 6.5 6.6 29 .5 .5 .2 22 - 1.6 6.5 S.5 6.5 7 6.6 6.6 .TO .5 .6 .2 23 - 1.6 6.5 S.6 6.6 7 6.6 6.5 31 .5 ~ .2 19 ~ 1.6 - 8.5 7 6.5 Second- Runoff in Month foot-days Maximum Minimum Mean acre-feet 77.6 4.1 14.3 4JT December...... (...... 42.2 £.5 .2 1.36 84 Calendar year 1942 ...... 662.5 9.6 .2 l.Bf 1,320 JEUMIAI*V . 1,349.0 828 694.6 131 1,367.4 341 April ...... 336.7 29 aaa May...... £06.4 9.5 3.9 224.0 9.5 444 21S.O 7.5 6.5 216.5 7,5 September, ...... 188.0 6.5 5.5 6.27 373 Water year 19.42-43 ...... 5,428.7 828 .1 14.9 10,770 a So gage-height record; discharge interpolated. Time baalS! Pacific wat time. To convert war time to standard time, subtract 1 hour. 88 SAN GABRIEL RIVEH BASIN Dalton Creek near Glendora, Calif. Location.- Water-stage recorder and broad-crested weir, lat. 34°09'25", long. 117°49'55", in center of sec. 21, T. IN., R. 9 W., a quarter of a mile upstream from mouth, of canyon, and 2i miles northeast of Glendora. Altitude of gage, about 1,125 feet (from topographic map). Drainage area.- 7.5 square miles. Records* available.- December 1919 to September 1943. Average discharge.- 23 years (192O-43), 1.37 second-feet. Extremes.- Maximum discharge during year, 277 second-feet Jan. 24 (gage Betg&t, 2.43 feet), computed on basis of relation between mean velocity and mean depth; no 'flow for several periods. 1919-43: Maximum discharge, about 850 second-feet Mar. 2, 1938, freas record of re lease from reservoir upstream; no flow for several months of each year. Remarks.- Records good. Glendora Irrigation Co. diverts water through IC-inch pipe line above station. Regulation by flood-control dam 1 mile upstream. Cooperation.- Thirty-five discharge measurements furnished by Los Angelee County Flood Contrbl District, through H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the war emergency. Discharge, in second-feet, water year October 1942 to September 1343 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June Jttl" Aug. Sept. 1 0 0 0.1 23 18 4.4 1.7 0.4 aO 2 0 2 0 0 .1 19 15 3.5 1.7 .5 a.2 0 3 0 0 0 19 25 2.7 1.8 .5 a.l 0 4 0 0 0 19 111 2.7 1.9 .4 a.l 0 5 0 0 0 11 155 2.8 1.9 .4 a.l .4 6 0 0 .3 3.7 125 3.9 1.4 .3 .1 0 7 0 0 .6 2.1 54 2.7 1.1 .5 .1 0 8 0 0 .6 2.6 63 3.3 1.2 .3 .1 0 9 0 0 .4 2.3 46 3.0 .9 .3 .1 0 10 0 0 0 2.6 29 2.7 .8 .3 .1 0 11 0 0 0 2.3 18 2.6 .8 .3 .1 0 12 .1 0 0 2.3 18 2.4 .7 ,3 .1 0 13 0 0 0 2.3 ' 16 -2.3 .6 .3 .1 0 14 0 0 0 2.3 16 2.1 .6 .2 .1 0 15 0 0 0 2.4 11 2.1 .6 .2 .1 0 16 0 0 0 2.4 7 2.1 .6 .2 .1 0 17 0 0 0 2.6 14 2.0 .5 .2 .1 0 18 0 0 0 2.6 14 1.9 .5 .2 .1 0 19 0 0 0 2.6 7 1.9 .4 .2 .1 0 20 0 0 0 2.2 7 1.9 .5 .2 .1 0 21 0 0 .1 2.1 12 1.8 .4 f.2 .1 0 22 0 0 26 15 17 1.8 .4 a. 2 .1 0 23 0 0 49 41 10 I.* .4 ft.E .1 0 24 0 0 40 46 9.5 1.7 .4 «u« .1 0 26 0 .2 25 30 10 l.f .7, a -2 .1 0 SB * 26 0 .1 21 8 1.7 .6 *.« .1 o 27 *\ .1 16 24 6,6 1.7 .6 a.S 0 0 28 .1 11 SO 6,8 1.7 .4 a. 2 0 0 29 0 .1 so _ 4.8 1.7 .4 a.2 0 0 30 0 .1 38 _ 4.8 1.7 .4 a.2 0 0 51 ,0 .1 36 - 4.6 " .4 - 0 0 Second- Runoff In Month foot-days Maxima* Miaisua Mean acre-fe*t October 0.1 0.005 0 0 0 0 0 December...... 8 .2 0 .03 1.6 Calendar year 1942 ...... 40.0 1.6 0 .11 79 284.2 49 0 9.17 564 46 a.l 12. E 679 March...... 860.7 158 4.6 87.8 1,710 JSpril ... ^, ...... «...... 70.3 4.4 1.7 E.34 199 Hay...... 1.9 .91 50 3.0 .5 .2 .87 16 MJy...... '...... 2.8 .8 Little Dalton Creek near Glendora, Calif. Location.- Water-stage recorder, lat. 34°10'05", long. 117050'15", in SEi sec. 17, T. 1 h., ft. 9 W., three-quarters of a mile upstream from mouth of canyon aad 2 J-miles north east of Glendora. Altitude of gage, about 1,330 feet. Drainage area.- 3.3 square miles. Records available.- January 1929 to September 1943. Average discharge-- 14 years, 1,05 saeond-feet. Extreme?.- Maximum discharge during year, 182 second-feet Jan. 23 (gage height, 3;10 reet;; no flow for part of year. 1929-43: rfexlHBim discharge, 960 second^feet (estimated) Mar.. 2,, 1936;: mr flow for several months In each year. Cooperation.- Records furnished by Los Angeles County Flood Contrcrl District^ thr-Jugh H. is". Heoger, chief engineer, and M. E. Salsbury,, acting chief engineer during the war emergency. Discharge, in second-fset, water year Qctob&r 1-942 to September-194S Daj Oct. Nov. Dec. Jan. Feb, Mar. ART. May June July/ A«g. Sept. $- OUs- 1 0 e 5 2.2 1.2 Q'..& 2 0 &*5 7 4.6 w6T .F , 3 0 a. 16 4.3 , 2.2 t!s *-7 .1 4 0 4vl 59 4.3 -7 Bj 5 cr, 5.5 47 4.6 2 ' 4 1^3 -a i - 3- 6 0 i 2iB 32 5 : 3.4 .3' >® .1 7 0, Sci.^6 23 2.6 «S Te a 0 , $>£ 19 5 .S Tj. 9 0 17 4.S \*$ 1.0 Is 0 10 0 2v2 16 1.9> 1.1 .s 0 'ST 0 , Q- 2-.Q3Ut : 1.2 .& 12 1.9 12 S.7 , 3.4 »r& 0 13 en0"' 1.9 18 1 l.S . o 14 1.9 11 i 5.2 8.6! i I.® .0 15 San Jose Creek near Whlttler, Calif. Location.- Water-stage recorder, lat. 34°01'25", long. 118°02'05", In Paso de Bartolo Grant, on Wortanan-Mlll road bridge, 3 miles north of Whlttler. Altitude of gage, about 230 feet. Drainage area.- 85.2 square, miles. Records available.- January 1929 to September 1943. Average discharge.- 14 years, 9.66 second-feet. Extremes.- Maximum discharge-during year, 8,040 second-feet Jan. 23 (gage height, 9.40 feet); minimum, 1.3 second-feet Nov. 7. 1929-43: Maximum discharge, 13,100 second-feet Jan. 1, 1934; no flow at times. Cooperation.- Beeords furnished by Los Angeles County Flood Control District, through H. ti. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the war emergency. . la second-feet, water year October 1942 to September 1945 Oaj Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 1.9 1.4 2.0 2.0 34 9 14 11 6 2.3 2.6 2.6 2,2 1.J 23 9 13 12 6 2.3 S.S 2.6 1.4 1.4 8.2 1.6 16 866 13 12 6.5 2.3 2.3 2.8 1.4 1.4 2.3 T..6 12 1.380 13 11 5 2.6 2.3 2.fl 1.4 1.4 2.2 1.6 9.6 362 13 11 4.7 2.6 2.6 2.3 6 1.8 l.S 1.9 1.6 9.S 78 IS 12 4.5 2.8 2.3 2.2 3.6 8 1.9 l.S 2.0 1.6 46 S3 14 11 4.5 2.8 2.0 3.1 9 2.O 1.6 2.2 i.e 20 32 14 11 4.7 2.S 2.0 2.8 1.8 1.8 2.O 1.8 IS 25 IS 9.5 5 2.6 2.8 2.6 11 1.9 1.8 1.9 1.6 7 23 14 8.S 5.5 2.6 2.8 2.2 12 1.8 1.8 1.9 1.8 7 21 IS S 4.5 2.3 2.6 2.2 IS 1.9 1.8 2.0 2.C 7.5 21 14 8.6 5.5 2.3 2.6 2.2 14 2.0 1.9 1.S 2.C 7.S 20 14 8.5 6.5 2.6 2.6 2.6 15 1.9 1.9 1.4 2.3 8 19 15 8.6 6,5 2.8 2.3 2.S 16 1.9 1.9 1.6 2:8 8 18 16 5.6 6 2.8 2.6 2.6 17 2.2 1.9 l.S 2.3 8 19 IS S.S 4.2 2.8 2.2 2.6 18 1.9 l.S 2.C 7.5 34 14 6 S.S 2.8 2.3 2.6 19 1.6 1.6 1.9 & £ 6.5 17 14 S s.s 2.3 2.2 2.6 1.8 1.6 2.2 2.3 6.5 18 13 6 S.S 2.8 2.2 2.6 21 1.9 1.5 2.0 3.S 19 18 12 S 4.S 2.8 2.S 2.3 1.6 1.5 2.2 1,310 423 , 23 1 12 C 4.S S.I 2.2 2.0 23 1.5 1.5, 2.5 2,740 278 21 12 S.S 4.2 S.I £*£ 2.2 1.4 1.6 3.7 ae 161 19 12 6.6 4.7 2.8 2.S 2.3 25 1.4 2.3 5.6 18' 46 18 11 7 4.2 3.1 2.6 2.3 26 1.5 2.6 2.2 26 IS 17 11 7 3.9 2.8 2.3 2.3 27 1.5 2.0 1.8 86 14 18 11 6.5 3.7 2.6 2.6 2.2 28 1.8 1.9 1.8 10 12 18 11 6 3.9 2.8 2.8 2.3 29 1.9 2.6 1.9 9.5 15 11 6 2.2 2.8 2.8 2.3 30 1.4 1.9 2.0 49 _ 16 11 6 2.3 2.8 2.8 2.3 31 1.4 - 2.0 2S5 - 15 - 6 2.6 2.6 Second- Runoff in Month foot-days Maximum Minimi* Mean acre-feet October 2 2 December...... 66.3 5.5 1.4 ST. 14 --x-1?-. Calendar year 1942 ...... 1,690.2 20 .8 4.63 3,560 , S 740 Q g^Q February 43.7. 396 1 A IK 0 Ihy...... 8 03 vUlift 2 2 July...... n Q & 41 September...... 73.9 3.1 2.0 2.46 147 later year 1942-43 ...... 10,521.6 2,740 1.4 2B-.3 20,480 Time baals; Pacific war time. To eotnrert war time to standard tl«e, subtract 1 heur. o ^J i?8 | jj mm i II to tO M M M l-i M I-1 ^MM M COtOtOtOCO COtOtOtOCO tOtOCOMM ^a a t» O en t-i M M M tO 0* &9MM M MMMMM S "§ Iq 00 0.01 CO - 0)0>oi>0> OltONWOl to Ol 01 o i ? 3 CO M tOtOOOt MMOI OltO AifcCJO R S l*C«Olb)OI ^«OVM ~3 «O tO ^^^M&l OlOICOtOtO tACACAyttA t* M O t* Ol -3 -3 *O OS M w wMto-qto tocotoox CD *. 01 01 * H> HX-H tOCOUtOOI UWWWIJJ W*-O>CD OlO10>0> MMMM MMtOtOtO tOtOtOMM *. i* Ol CII 0> -5 to 03 MMMMO > 0000 MM_ M to to to M to to MM _ M CO CO CO CO to M OO OIKU AMtOM W Mi* MM_ MM^OIWeB Ol to O CA W to 71 CD OJ oicjiwcjidw 01 on on on 01 01 01 01 01 01 tOMO 01 w 01 0101 01 w 010101 en 01010101 0101 oi.cx 01 oioioicnoi oioioioien 92 SAN QABHEL RIVER BASIN, Braa Creek below Brea Dam, near. Fullerton,, Calif". Location. Waten-ataga- recorder, lat.-33°53'15", long:, H7055'30*, a Quarter at & mile oeiow Brea Dam, east of. U» S. Highway 101, 1 mile north of Fullerton, Orange County. Datum of gage is 197.70 feet above mean sea level (levels by Corps of Engineers,, U. S, Army). Drainage area.- 23.4 squar*miles. Heco: available*- January/1942 to September 1943. i.- 1S4B: Maximum dally discharge during parl'od January to SBpteirbery S.,4 sscond- 15; no flow during most of period... 1942-43:. Maximum discharge during water year, 200 second-feet War.. 3 (-gag? height, 2.86 feet);, mr flow during several months.. Remarks.- Records goad'.. Flow regulated by Brea Dam., cooperafl.on.- Records prior to Oct. 1, 1942, and 26 discharge measurements furnished by corps or EngjJnBflis,, U.. S-. Army. Discharge, tn- second-feet,, 1942-43 1942 1943 Day Jan.. »b. Ifer. Apr.. Esc. Jan. Feb. REFT. Apr. toy June July teE- Sept. 1 a£.fi QJ. O.a (P O 0 T.& 1>3.0 1.9 0.1 Q : «T 0 0 & 0 2.3 WJ.7 1.6 .1 0 O 2 I&.9 j: '5 .* r & 3 pl.fi .2 .2 Q> . 0 2.JQ f66 1.5 .2 0 i o 0 .2 * aJi .2 .* i -3 , GI o0 l«ff 169 X.4 .3 0 c 0 .3 5 a. 5 .2 a J. a L.2 7S 1.5 .& O c 0 . 0, 6 .5 .2 .1 JL o 0 .3 14 5.6 .3 Q r 0 O r .8 .2 .1 ! .1 ' o 0 .9 10 3.2 .S 0 i «r 0 .1 a ' «4 .3 a .1 1 O 0 9 S 8.8 .8 0 c 0 .3 9 *£ .1 .1 .1 0 0 3v.fr 6.5 3.O .1 o r o .6 10, .S .1 .1 .3 I O 0 1.4 6.5 2.1 .1 0 c 0 .2 11 .2 .1 .3 .T 0 o l.Q 6 : 1.6 .1 o r 0 .1 12 .2 .1 .9 .3 o o .6 S 1.3 .1 o c 0 0 15 ! -2 1 .1 .1 .5 o 0 .« 4.6 l.S .1 0 c 0 O 14 .a .1 l.Q .4 o 0 .4 4.8 1.8 .2 0 .1 0 .1 15 .s .8 3.4 .4 0 0 .« 4.8 1.1 .1 0 .1 o .& 1ST .2 .2 1.6 .2 0 0 1.0 4.3 1.1 .1 0 r 0 .1 IT .2 .2 .5 .3 o 0 .2 5 1.0 .1 0 .3 0 o 18 .2 .2 .3 .3 o 0 h f.l 8,5 .9 .1 0 C 0 .1 19 .2 .2 .2 .3 0 0 a.l 5 .8 0 0 C 0 Q 20 .1 .2 .2 .2 0 0 a.l 3.9 .6 0 0 C o Q 21 .1 .2 ".1.1 .2 0 .t a.l 5.4 .5 0 o C 0 .9 22 .2 S>.2 .4 0 59 a40 5.7 .4 0 0 .z 0 .3 23 .2 ils .1 .3 0 91 fS» 3.5 .4 0 .1 c 0 .4 24 .2 .4 0 .1 o 11* 2O 3.0 .4 0 0 c 0 .2 25 .2 .2 0 .1 1.7 104 9 4.2 .3 0 0 e 0 .2 '.3 26 .8 .2 o .1 .4 11 4.6 2.8 0 0 c o .1 27 .2 .2 0 0 0 17 b3.7 2.7 .2 0 0 c o .1 28 .2 .2 0 .1 0 4.6 b3.4 8.5 .8 0 0 c 1.0 .1 29 .8 0 0 o 1.8 2.5 .8 0 0 c .2 .1 30 .2 .1 0 0 .9 3.4 .1 0 o 0 0 .8 31 .2 o o 30 3.3 0 0 .1 Seoond- Runoff in Month foot-days Maximum Minimum Mean acre-feet Jami&ry 194; 13.3 3.6 0.1 0.43 86 Febr Tiary 6.3 2.8 .1 .30 IS lfa.ro £ 9.6 3.4 0 .31 19 Apri 6.2 .7 0 .ai 12 May. Q 0 0 o 0 June 9 0 0 0 0 Julj 0 O 0 0 Augu 0 Q o I 0 September...... 0 0 0 0 0 11IB pe ricxi - u - . 78 Ooto bar 194, 0 0 0 0 0 Novaimber o 0 0 0 0 Deo«inber 2.1 1.7 o .07 4.8 Ca lend w y Brea Creek at FUllerton, Calif. Location.- Water-stage recorder, lat. 33°52'25", long. 117055 I40", In San Juan Cajon de Santa Ana Grant, on Ford Avenue Bridge, at Fullerton, Orange County. Altitude of gage, about 250 feet. Drainage area.- 26.4 square miles. Re cords - aval lable. - October 1930 to September 1943. Average discharge.- 12 years (1930-38, 1939-43), 1.86 second-feet. Extremes.- Maximum discharge during year, 425 second-feet Mar. 3 (gage height, 1.45 feet); no flow during most of year. 1930-43: Maximum discharge, 3,700 second-feet Mar. 14, 1941 (gage height, 5,45 feet); no flow during most of each year. Cooperation.- Records furnished by Orange County Flood Control District, through A. A. Beard, flood-control engineer. Discharge, in second-feat, water year October 1942 to September 1943 Day Oct. NOV. Dec. Jan. Feb. ,Mar. Apr. May June July AIR. Sept. 1 0 11 12.9 2.8 1.0 2 0 3.0 1.9 2.8 1.0 3 0 0 1.9 76 2.e 1.0 . 4 0 0 1.6 18 2.8 .9 5 0 0 1.6 51 , 2.S .9 6 0 0 1.2 22 3.1 .9 7 0 0 1.0 12 3.0 .9 8 0 0 13 9 2.8 .9 9 0 0 2.5 a 2.6 .9 10 0 0 1.9 8- 2.4 0 11 0 0 1.6 7 2.3 0 12 0 0 1.2 1 2.2 0 13 0 0 .9 6 2.2 0 14 0 0 .6 S 2,2 0 15 0 0 .6 S 2.2 0 16 0 0 1.9 8 2.2 0 17 0 0 .9 8 2.2 0 18 0 0 .6 5 2.2 0 19 0 0 .6 5 2.2 0 20 0 0 .3 8 2.2 0 21 0 .8 1.6 5 2.0 0 22 0 122 51 5 1.8 0 23 0 111 54 5 1.7 0 24 0 81 26 a4.9 1.6 0 25 0 69 11 a4.7 1.4 0 26 0 19 5 a4.2 1.3 0 27 0 23 3.1 aS'.S 1.2 0 28 .6 5 2.8 a3.4 1.2 0 m .3 2.5 _ a3.0 - 1.1 0 30 .2 S.5 - 2.S 1.0 0 31 0 45 - 2.8 - 0 Seoond- Runoff in Month «. foot-days Maximum Minimum Mean ao re-feet o o December...... 0 0 0 0 0 Calendar year 194S ...... '...... 51. £ 3.1 0 .14 103 January 30*7 9 ) '2 .14 128 May...... September...... 0 0 0 o 0 Water year 1942-43 ...... 1,067.9 122 0 2.93 2,120 a Bo gage-height record; discharge computed Isy Geological Survey on basis of Eflcards £<^ station below Brea Dam, Time basis; Pacific war time. To eoiwert.war time to standard time, subtract 1 hour. SAN SAMUEL RIVER BASIN Pullerton Creek below Fittlerton Dam, near Brea, Calif. Location.- Water-stage recorder, lat. SS^S'W, long. IWSS'OS", em outlet cftamnel of FuIIerton Dam, 1.6 miles southeast of Brea, Orange, County. Altitude of gage, about 260 feet (from topographic map}. Drainage area.- 3.05 square miles. Recoras available.- October 1941 to September 1943. taccremes.- ia4i-4 Discharge, In sceond-feet, 1941-49 1942 1943 Day June Jan. Feb. Mar. Apr. 1 0 0.1 0 0 0.1 O 2 0 t.l 0 O 30 '0O 3 O .1 0 O .1 4 o .2 0 SO. 15 O 5 0 o 0 O 17 0 6 0 0 0 0 6 o 7 o 0 0 o S.O 0 8 0 0 0 4.0 1.2 0 9 o 0 0 .1 .7 .02 10 0 0 0 .1 .5 O 11 0 0 o .1 0 12 o 0 o .1 \Z O 13 0 0 0 .1 .5 0 14 0 0 0 .3. .5 0 15 0 0 0 .1 .3 0 16 o 0 0 .1 30 0 17 0 0 o ,1 .3 o 18 0 0 0 .1 .2 0 19 0 0 0 ,2 .2 I 0 20 0 0 0 .2 .2 0 21 0 o 0 .2 .2 Q 22 0 0 1.X .2 .2 0 23 o 0 72 .2 O 24 0 0 17 , 0 25 .1 0 6 : la Is 26 ,1 o .2 36. 0 27 .1 0 17 0 28 .1 0 0 29 .1 0 0 .1 i 0 30 .1 0 0 .1 0 31 Q O Seeond- RaaoXT in Month fcot-days- KHnrfmmr UBSHBB Itaan Oo to be'r 134] o . 0 i o i 0- 0 Hoveaber 0 , i 0 0 0 a- DeceBber...... 0 ' 0 0 0 ~* Calendar 3rear - - - - Janu ary 194!1 0 0 9 Febr u&ry 0 0 0 © Marc » / O Q 0 O 0 0 0 0 0 0 O a June .6 .1 a .oe July .2 0 .02 Augu 0 O 0 0 0 September...... 0 0 o 0 0 Ha ter yeai 1941-42 ...... 1.1 JT .008 : 2JE o 1 0 Ooto.ber 1942...... 0 o 0 0- Move 0 0 0 0 a Deca *»r ...... T ...... v .....!.,...... 0 . ff 0 0 ' 0> Ca lendar fear 194 . 1*1. J£ ' .COS "' ' 2.2 Janu a*y 19.£V 1BTJ. O 6,07 : 312 Febi nftrato » ------S&,<3 m. ffi ' 1.00 ; " 56 Hare 14S.6 as ffi 4.60 £83 Apri .£» .08 > .003. May. 0 ffi a ; o (T June 0 . o 0 Juls 0 0 0 0 0, Augn 0 0 0 i Fullerton Creek at Fullerton, Calif. Location.1- Water-stage recorder, lat. 33°52'20", long. 117°54'20", in Ban Juan Cajcn de Santa Ana Grant, on Raymond Avenue Bridge, at Fullerton, Orange County. Altitude of gage, 170 feet. Drainage area.- 6.2 square miles. - , Records available.- October 1939 to September 1943 In reports of Geological Survey. 1931-39 in files of office of Orange County Flood Control District, Santa Ana. Extremes.'- Maximum discharge during year, 291 second-feet Jan. 23 (gage height, 2.75 feet); no flow most of year. 1939-43: Maximum discharge, 1,600 second-feet Mar. 14, 1941 (gage height, 1C.05 feet); no flow for several months each year. Cooperation.- Records furnished by Orange County Flood Control District, through A. A. flood control engineer. Discharge, In second-fast, water year October 1942 to September 1943 Day Oct. HOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0 0 , 0 1.4 0 0 0 0 0 0 0 22 0 0 0 .4 0 0 IB 0 0 0 .2 0 8.5 36 0 0 , 0 0 0 1.0 24 .6 1.0 6 0 0 0 .2 11 .8 .2 0 0 0 .2 8 0 0 .5 0 0 6 6 .6 1.2 0 0 0 .4 4.9 0 .8 0 0 0 0 1.0 0 0 11 0 0 0 0 .4 0 0 12 0 0 0 o' 1 * 0 0 13 0 0 0 0 0 2.1 14 0 0 0 0 0 0 3.0 15 0 0 0 0 0 0 .4 16 0 0 0 0 33 0 0 17 0 0 0 0 .6 0 18 0 0 0 0 0 0 0 19 0 1.0 0 0 0 0 20 1.2 .5 1.0 0 0 0 0 21 .4 .2 1.2 1.2 0 0 0 22 0 0 29 S.5 0 0 0 23 0 0 117 9 0 0 0 24 0 0 18 5 0 0 0 25 0 0 10 .6 0 0 0 26 0 0 16 0 24 0 0 27 0 , 0 20 0 .9 0 0 28 1.2 0 24 0 0 1.0 0 29 .4 0 1.0 _ 0 1.0 0 30 0 0 .6 . 0 .2 0 31 0 - 7.5 - 0 0 Second- Rumff in Month foot-days Maximum Minimus Mean aoro-fe»t October 2 «z December...... 0 0 () 0 0 Calendar year 1942 ...... 20.5 1.8 (} .06 41 OJK March 189 fl May...... "tft June .. } 0 July...... August ...... September...... 0 0 c} 0 0 Water year 1942-43 ...... 497.5 117 () 1.36 987 baala; Pacific war time. To convert war tine to standard tl»», subtract 1 hour. 96 LOS ANGELES RIVKR BASIN Los Angeles River at Sepulveda Dam, Calif. Location.- Water-stage recorder, lat. 34°09'5011 , long. 11B°28 I 1011 , or outlet channel of Sepulveda Dam In Ex Mission San Fernando Grant, a quarter of a mile upstream from Sepulveda Boulevard and 2 miles southwest of Van Nuys, Los Angeles County. Altitude of gage, about 675 feet (from topographic map). Drainage area.- 155 square miles. Records avallablei- May to September 1943. Remarks.- Records fair-. Flow regulated by Sepulveda Dam. Several diversions above station. Cooperation.- Eight dlsctiarge measurements furnished by Corps of Engineers, U. S. Army. Discharge, in second-feet, water year October 1942 to SeptenHer 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June . July Aug. Sept. 1 8 6 6 6 2 _ 6.5 6 6.5 6.5 3 _ 6 5.5 6.5 6.5 4 _ 5 & 6.5 6 5 - 5 5.5 6.5 6.5 - G _ 5.5 S 6 6 7 _ 5.5 5 6 6 8 _ 5.5 5.5 5.5 6 9 _ 5.5 5.5 6 f6 10 - 5.5 5.5 6. 6.5 11 _ 6 6 5.5 6.5 12 _ 6 6 6 6.5 13 _ 6 6.5 7 6.5 14 _ 6 6.5 7 6.5 IS e - 6 6.5 6.5 6.5 16 _ 6 6.5 5.5 6 17 t _ 6 6 5.5 6.5 16 _ 6.5 6 5.5 5.5 19 _ 6.S 6 5.5 S 20 f5 6.5 6 6 6 21 S.6 6.5 6 6 6 22 6 6.6 5.5 6.5 e.e 23 6 6 e 6.5 6 24 6.6 S s 6.S 6 25 6.5 6 4.8 6 6 26 6.5 6 5 6.5 6 27 6.5 5.5 5.5' 6 6 28 6.5 6 5 6.5 6.5 29 7 6 5.5 6.5 6,5 30 7.5 6 5.5 6 7 31 7.5 5.5 6.5 Second- Runoff in Month f cot-days Maximum Minimum Keen acre-feet October...... November...... Deceabar...... Calendar year ...... January...... February...... , Baron...... April...... *> v~i! Hay »wn...... : .. . j...... 77.0 f »O 5 $. 4& 153 180.0 , 5 6*00 357 July. lY&vS 6J6 4*8 5.67 349 AugiiBt...... 191.0 7 ' s.e 6.16 379 Septaatwr...... 1S4-0 7 5 6. IS 365 The period...... - - - - 1,600 f Computed on basis of partly estimated gage-toelght record. Time TaaaJ-si .Pacific war time. To comrert war time to standard time, subtarret 1 hou*. LOS ANGELES RIVER MSIN 97 Los Angeles River below Sepulveda Dam, Calif. Location.- Water-stage recorder, lat. 34?09'40", long. 118°27'50", in Ex Mission San Fernando'Grant, an eighth of a mile downstream from Sepulveda Boulevard, a third of a mile downstream from Sepulveda flood-eontrol dam, and 2 miles southwest of Van Iluys, Los Angeles County. Altitude of gage, about 670 feet. Drainage area.- 157 square miles. Records available.- October 1940 to September 1943 in reports of Geological Survey. Dec- ember 1928 to September 1943"in reports of Los Angeles county Flood control Eistrict. Average discharge.-' 13 years (1929-37,- 1938-43), 16.2 second-feet. Extremes.- Maximum discharge during year, 2,710 second-feet Jan. 23 (gage height, 9.75 feet); minimum daily, 5 second-feet Jan. 19, 20. 1940-43: Maximum discharge, 6,610 second-feet Feb. 20, 1941 (gage height, 20.7 feet); minimum dally 2.9 second-feet Oct. 17, Nov. 7, 1940. Remarks.- Storage and several diversions above station. Regulation at Sepulveda flood- control dam became effective in December 1941. Cooperation.- Records computed in cooperation with Los Angeles County Flood Control District, ''through H. E. Hedger, chief engineer, and M. E. Salsbury, acting cMef engineer during the war emergency. . Twenty-five discharge measurements furnished by Corps of Engineers, U. S. Army. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug., Sept. 1 12 7 13 48 78 88 15 10 10 6.5 ,, 14 7 12- 49 74 87 15 10 9.5 15 7 12 49 76 514 13 10 9.5 14 ' 1 10 49 6S 1,650 13 10 9.5 9- 14 7 6 50 61 561 15 9.5 9 8.5 S 6 14 ' 6.5 6 52 59 95 36 14 6.5 6 513 60 46 14 9 9.5 8 15 6.6 6 50 61 40 12 9.5 9.5 8 15 6.5 6 50 62 45 13 10 9.5 8 15 6 6 51 61 43 13 12 9.5 8 7 11 15 5.5 6 43 69 40 12 12 10 8 12 16 6.5 6 31 35 56 12 14 9.5 6.5 15 10 6 313 34 102 12 12 9.5 15 15 6 32 35 120 25 9.5 9 .5 6.5 15 15 6 31 35 83 5-1 9 9 .5 6.5 16 15 14 5.5 30 33 65 60 9 9 15 14 6 29 32 63 62 9 8.5 .5 6.5 15 14 5.5 16 33 86 60 9 8.5 19 14 r 14 5.5 5 31 59 52 20 14 14 6 5 27 33 54 9 8 6.5 7 6 21 14 14 6 132 1 31 35 56 9 8 6.5 22 15 14 6 1,110 159 39 14 13 6.5 2,370 207 38 30 8.5 6 14 14 8.5 1,870 311 SO 13 14 9.5 423 133 62 9 9 8 7.5 6 6.5 26 13 14 5.5 89 90 55 9.5 9 8 7*5 13 14 5 160 86 53 10 8,5 7.5 6 28 18 14 6 23 91 53 10 8.5 7 7.5 6.5 6.5 29 16 14 17 37 - 55 10 9.5 7 7.5 6.5 6.5 15 14 35 ' 113 - 56 10 9.5 6.5 7.5 6 6.5 11 - 46 140 - 36 9,5 7 6.5 Second- Runoff in Month foot-daya Maximum Minimum Mean acre-feet 18 November. December ...... f ...... 292.5 46 5.,5 9.44 580 Calendar year 1942 ...... 3,560.0 46 5 9.75 7,060 2 370 March...... 142 Q May...... g £> ? *> ^ September...... '...... 200.0 B 5. 5 6.67 397 Water year 1942-43 ...... 16,675.0 2,370 5 45.7 33,070 Pacific war time. To convert war time to standard time, subtract 1 hour. 98 LOS ANGELES RIVER BASIN Los Angeles River at Los Angeles, Calif, Location.- Water-stage recorder, lat. 34°04'50°,»long. 118°13'35B , near Flgueroa Street, Los Angeles, 0.1 mile upstream from Arroyo Seco. Drainage area.- 510 square miles. Records available.- October 1929 to September 1943. Average discharge.- 14 years, 65.4 second-feet. as,- Maximum discharge during year, 23,900 second-feet Jan. 23 (gage height, 8.38 minimum, 14 second-feet Hay 19, 1929-43: Maximum discharge, 67,000 second-feet Ifer. 2, 1938; no flow for several periods in earlier years. Cooperation.- Records furnished by Los Angeles County Flood Control District, through fi. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the war emergency. Discharge, in second-feet, water year October 1948 to September 1943 Daj V0ot. Nov. Dec. Jan. Feb. Mar. Apr. May June Jily Aug. Sept. 1 39 42 56 90 616 395 100 67 25 24 IS 29 2 48 42 56 84 664 388 95 66 86 84 20 26 48 46 66 84 410 1,940 93 63 85 85 21 26 48 68 46 90 333 3,960 88 63 86 24 21 26 44 62 43 86 161 1,880 108 62 88 84 20 25 6 48 62 48 93 147 1,180 200 68 88 84 20 25 7 48 64 51 100 14S 887 71 58 86 84 20 26 B 39 57 65 98 873 394 71 53 29 24 21 26 9 37 67 56 96 830 864 78 61 31 84 21 28 10 39 57 56 96 131 449 76 56 31 88 21 28 11 39 57 66 98 134 396 75 55 31 84 22 26 12 64 64 66 64 116 468 62 66 38 88 22 26 13 48 67 56 88 118 458 93 56 38 84 24 26 14 46 63 56 88 118 340 95 53 89 88 24 28 IE 49 69 68 84 118 876 116 53 34 op 25 32 16 54 -69 56 88 116 808 lie 51 31 88 25 34 17 46 60 55 88 115 837 124 65 31 82 25 32 18 49 65 55 84 115 336 124 51 32 82 34 32 19 49 73 56 71 110 886 137 IB 31 28 28 52 20 49 61 56 66 110 187 157 16 31 88 88 32 21 64 51 66 199 856 198 137 16 31 82 28 34 22 46 48 65 6,580 795 198 147 17 31 81 28 37 23 54 49 68 7,100 i,050 168 143 20 29 81 28 37 24 64 65 154 3,750 1,860 166 69 88 - 86 85 31 25 46 60 143 1,670 604 187 69 24 84 88 25 34 26 46 BO 62 716 360 161 69 86 88 82 24 35 27 68 63 63 738 581 131 67 86 88 22 24 32 28 129 63 68 166 367 131 69 88 88 82 . 84 34 29 83 62 68 891 140 67 86 .81 88 24 34 30 60 58 73 978 _ 181 67 86 28 24 24 31 31 44 - 82 707 - 118 - 86 18 24 Seoond- Runoff in Month foot-days Maxisum Minimum Mean acre- feet 3,080 1 C GO December...... 1,948 154 43 62.8 3,860 Calendar year 1948 ...... 83,266 309 22 63.7 46,140 795 48,870 88,390 April...... 200 99,5 5,920, May 838 34 81 87.8 1,660 w 1,390 698 26 le 38.6 1,380 September ...... 903 37 as 50,1 1,790 Water year 1948-43 ...... 62,717 7,180 16 178 , 124,400 Time basis3 Pacific war tiro. 5o oonrert war tiw» te atandard tlwe, safrfcrsot LOS ANGELES RIVER BASIN gg Los Angeles River near Downey, Calif. Location..- Water-stage recorder, lat. 33°57'05", long. 118°10'25% in San Antonio Grant, on Flrestone Boulevard Bridge, 1 mile upstream from Rio Hondo and 2« miles weat of Downey, Los Angeles County. Altitude of gage, about 100 feet. Drainage area.- 614 square miles. Records available,- rferch 1928 to September 1943? Average discharge.- 15 years, 97.4 second-feet. Extremes.- Maximum discharge during year, 27,500 aecond-feet Jan. 23 (gage heigJit, 10.60 feet); minimum dally,-18 second-feet Flay 23. 1928-43: Jfexlmum discharge, 79,700 second-feet Mir. S, 1938; no flow durlrg parts of most years. Cooperation.- Records furnished by Los Angeles county Flood Control District, through H. a. Heoger, chief engineer, and M. E. Salsbury, acting chief engineer during- the war emergency. Discharge, i'n second-feet, water year October 1942 to September 1949 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 69 38 78 116 842 473 167 93 43 43 21 38 2^ 2 65 38 74 116 887 368 160 82 51 29 2"» 39 3 47 47 74 104 740 2,270 162 82 43 24 40 4 51 74 70 152 672 8,630 138 88 41 24 31 40 5 56 74 82 132 295 5,380 216 78 36 24 31 40 3- %1 6 55 70 78 138 218 1,390 445 70 36 36 3-5 7 55 55 74 138 196 1,240 261 70 41 38 41 8 56 55 70 138 460 723 174 66 41 36 s->2^ 43 9 61 56 74 138 270 627 152 59 38 36 43 10 59 62 66 152 196 868 . 127 62 33 33 Z1 43 '36 11 50 62 66 160 210 1,060 116 70 26 2t 47 12 78 66 62 145 174 932 116 78 43 31 31 38 13 51 62 69 121 188 878 116 74 47 33 31 41 14 68 70 62 116 160 522 116 66 43 33 .31 43 15 66 78 66 116 160 424 160 62 51 36 3f 43 16. 59 74 66 121 160 296 181 62 45 36 31 51 17 66 62 62 121 152 435 167 66 41 31 31 51 18 62 55 59 127 152 512 152 70 36 33 3? 51 19 51 129 62 104 145 368 145 43 38 38 M 51 20 51 69 59 99 138 326 167 26 33 43 3< 47 21 62 6$ 62 482 446 278 145 26 36 41 31 51 22 69 66 70 10,360 1,%30 252 144 19 47 38 3< 55 23 69 70 66 10,710 1,210 210 160 - 18 51 36 3< 62 24 59 70 221 3,970 1,580 188 110 19 43 36 S^ 47 25 55 82 733 -2,000 819 188 78 29 41 36 Zf 47 26 55 . 82 160 1,3OO 522 181 78 33 47 31 3 = 47 27 62 99 99 1.230 379 188 88 38 38 38 S* 41 28 315 104 93 218 368 210 88 43 36 41 Z1 43 29 126 88 88 269 210 88 43 43 41 35 47 30 56 70 82 1,560 210 93 58 47 38 37 43 31 43 110 1,360 203 33 33 3-3 Second- Runoff in Month foot-days Maximum Minimum Mean ao re-feet Octo ber...... : 2,094 315 43 67.5 4,150 Hove liber...... !..,...... 2,076 129 38 69.2 4,120 Deoe ber...... 3,147 733 59 102 6,240 Calendar year 1948 ...... 29,705 733 27 81.4 58,920 Janu &ry. .... 35,993 10,710 99 1,161 71,390 Febr 13,368 1,630 138 477 36,520 llaro h...... 30,089 8,680 181 971 59*680 Apri 4,500 445 78 150 8,930 1,760 93 18 65.0 3,380 June 1,245 61 33 41.5 2,470 July 1,072 43 24 34.6 2,130, Augu st...... 1,027 38 21 33.1 2,040 September: ...... 1,354 68 38 45.1 2,690 Water year 1948-43 ...... 97,670. 10,710 18 268 195,700 Peak discharge.- Jan. 23 (2:40 a.m.) 27,600 see. -ft.; Mar. 4 '{12:30 a.m.) 12,100 sec. -ft. 100 LOS ANGELES RIVER BASIN Los Angeles River at Long Beach, Calif. Location.- Water-stage recorder, lat. 33°47'25B , long. 118°12'20", on State Street Bridge at Long Beach, Los Angeles County. Records available.- December 1928 to September 1943. Average discharge'.- 14 years (1929-43), 158 second-feet. Extremes.- Waximm discharge during year, 37,900 second-feet Jan. 23 (gage height, 17.44 reet};-minimum dally, 28 second-feet Aug. 9. 1928-43: Maximum discharge, 99,000 second-feet Ifer. 2, 1938; m flow at times in 1929, 1930, 1934. Coi Mgeratlon.- Records furnished by Los Angeles County Flood Control District, through H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the war emergency. Discharge. In second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 83 112 102 133 890 910 164 105 50 36 42 36 2 74 108 102 119 950 7S6 139 100 47 39 36 42 3 74 119 102 119 7SO 3,350 157 90 42 33 42 42 4 77 140 108 112 6SO 10,700 150 105 42 36 39 44 5 74 126 108 126 400 5,930 139 100 39 36 36 47 & 77 119 102 137 238 2,210 732 90 39 36 33 39 7 74 115 99 149 202 1,840 366 90 39 42 \ 53 36 8 74 112 105 140 662 1,560 171 S6 39 44 39 36 9 74 105 112 140 327 1,230 192 71 39 42 2S 36 10 74 108 112 144 250 1,100 164 67 39 39 36 36 11 69 102 108 149 1*1 1,220 171 71 39 39 36 36 12 60 96 105 156 171 1,060 139 78 44 39 39 33 13 74 96 102 158 202 9S2 139 74 42 36 39 33 14 64 96 99 158 161 786 139 78 42 39 36 33 15 69 99 108 162 141 650 157 62 50 39 39 33 16 72 102 108 176 141 508 192 78 50 44 31 39 17 64 99 108 176 141 357 2O6 74 42 43 33 42 18 61 92 113 167 130 S59 206 78 42 43 36 42 19 59 152 105 167 130 440 199 63 42 42 36 44 20 64 144 96 149 151 340 229 48 42 41 36 44 21 67 137 89 172 S27 310 220 32 36 40 39 50 22 67 133 83 13,300 3,540 280 213 34 44 40 42 52 23 69 122 74 18,900 1,250 240 _ 206 35 42 39 42 59 24 72 115 253 7,510' 2,080 200 164 37 44 44 42 59 25 69 IDS 734 4,400 1^030 195 128, 38 39 42 44 55 26 64 108 162 1,450 624 229 116 41 39 42 44 55 27 69 112 130 1,270 611 874 116 43 36 39 42 53 28 194 112 112 280 508 2S6 116 44 33 47 44 52 29 3S7 115 108 258 _ 229 116 46 42 50 42 52 '30 108 102 10S 2,200 _ 215 105 47 42 47 39 50 31 105 - 122 1,980 - 192 - 49 50 33 - Second- Runoff in Month fee t-days Maximum Minimum Mean acre- feet 92 December...... 4,078 734 74 132 8,090 Calendar year 1942 ...... 39,421 1,080 31 108 78,210 May...... 1,247 September...... 1,309 59 S3 43.6 2,600 Water year 1942-43 ...... 134,386 18,900 28 sea 266,600 Time basla; Pacific war tirae. To convert war time to standard time, subtzvct 1 hour. LOS ANGELES RIVER BASIN 101 Pacoima Creek near San Fernando, Calif. Location.- Water-stage recorder and broad-crested weir control, lat. 34°20'0211 , long, lie^23'55", In SEiNEi sec* 24, T. 3 N., R. 15 W., 600 feet upstream from mouth of canyon and 4 miles northeast of San Fernando. Drainage area.- 28.2 square miles. , Records available.- March 1916 to September 1943. Average discharge.- 26 years (1917-43), 9.04 second-feet. Extremes.- Maximum discharge during year, 598 second-feet Jan. 23; no flow many days. 1916-43: Maximum discharge, 2,440 second-:feet Mar. 3, 1938; no flow for sp*eral months in most years. Remarks.- Flow regulated by flood-control dam above station. Cooperation.- Records furnished by Los Angeles County Flood Control District, through H. E. Hedger, chief engineer, and M. E. Salsbury,'acting chief engineer during the war emergency. Discharge. in second-feet, water year1 October 1942 to September 1943 Day Oct. Mov. Dec. Jan. Feb. Mar. Apr. Bay June July Aug. Sept. 1 3.5 0.3 0 0.1 91 Ill 41 39 6.5 5.5 7.S 0 2 3.5 .3 0 .1 89 97 40 39 6.5 5.5 7.5 0 3 3.5 .3 0 .1 86 196 41 39 6.5 5.5 7.5 0 4 3.4 .3 0 .1 81 302 41 39 6.5 5.5 7.E 2.5 5 3.4 .3 . 0 .1 80 338 32 39 6.5 5 7.5 7.5 6 3.4 .3 0 .1 95 287 0 39 5.5 4.8 7 7.5 7 3.4 .3 0 ,1 107 272 24 29 5.5 4.5 7 7 8 3.3 .3 0 0 88 290 41 17 5.5 4.1 7 7.5 9 3.3 .3 0 0 105 321 41 16 5.5 3.6 7 7.5 10 3.3 .4 0 0 105 1S7 41 13 5.5 3.7 7 7.5 11 3.2 .2 0 0 102 112 40 10 5.5 0 7 7.5 12 3.1 .1 0 0 95 111 40 10 5.5 0 7 7.5 13 3.0 .1 0 0 36 110 37 10 5.5 0 7 7.5 14 2.9 .1 0 0 32 109 37 10 6.5 0 4.2 7.5 15 2.7 0 0 0 29 110 34 9.5 7 0 0 7.5 -.4 16 2.3 0 0 26 110 34 8.5 7 0 0 7.5 17 2.0 .2 0 0 23 108 34 9.5 6.5 0 2.2 7.5 18 1.7 .1 0 0 20 86 38 9.5 5.5 0 7.5 7.5 19 l.S .3 0 0 15 44 41 9 5.5 0 7.5 7.5 20 .8 .2 0 0 13 44 41 9 5.5 0 7.5 7.5 21 .9 .1 0 0 0 44 41 9 6 0 7.5 7.5 22 .9 .1 0 0 0 44 41 6.5 6 0 2.5 7 23 .6 .5 0 474 99 44 41 7.5 6 0 0 7 24 .8 .1 0 576 99 44 41 7.5 6 0 0 6.5 25 .8 10 0 310 124 43 40 7.5 6 0 0 6 26 .6 .1 o - 306 110 41 40 7.5 6 0 0 5 27 .2 .1 0 160 111 41 40 7.5 6 0 0 5 28 .2 .1 11 94 111 40 40 7.5 6 0 0 5 29 .5 0 .1 124 - 39 39 7 6 0 0 4.9 30 .6 0 .1 134 - 36 39 7 5.5 0 0 4.8 31 .4 - .1 89 - 41 - 6.5 8.5 0 Second- Runoff in Month foot-daya Maximum Minimum Mean acre-feet Ooto ber...... 63.6 3.5 o.:5 2.05 126 Movertser...... 15.9 10 0 .53 32 Deoe*»r...... 11.3 11 0 .36 22 Calendar year 1942 ...... 9O9.5 25 6 2.49 1,300 January...... 2,267.7 576 0 "73 2 4,500 February 1,972 124 0 70.4 3,910 arch 3,802 OOo9<*Q 36 133 7', 540 April...... 1,120 41 0 37 3 g gg Q mtf...... 487.0 39 6s'.i > 15 7 966 June ...... 179.5 7 j 5*.98 356 July 4g » £ 5.-5 0 1.59 woQQ August...... 132^4 7.5 0 4.27 263 September...... 180.7 7.5 0 6.02 358 Water year 1942-43 ...... 10,281.3 576 0 28.2 20,390 Pacific war time. To convert war time to" standard time, subtract 1 hour. 102 LOS ANGELES RIVER BASIN Tujunga Creek near Colby Ranch, Calif. Location.- Water-stage recorder, lat. 34°18'1011 , long. il^OS'SB". Just downstream from Lucas Creek, 400 feet upstream from crossing of Edison Road, 34 miles west of Colby Ranch,-Los Angeles County, and 4 miles upstream from Tujunga flood-control dam 1. Drainage area.- 66.9 square miles/ Records available.- October 1930 to September 1943. Average discharge.- 13 years, 22.1 second-feet. Extremes.- Maximum discharge during year, 14,800 second-feet Jan. 23 (gage height, 15.40 reetj; minimum dally, 0.8 second-foot Oct. 1-9. 1930-43: Maximum discharge not determined, probably occurred Mar. 2, 1938: no flow parts of most years. * Cooperation.- Records furnished by Los Angeles County Flood control District, through H. E. Heager, chief engineer, and M. E., Salsbury, acting chief englr«er during the war emergency. Discharge, in second-feet, water year October 1942 tc Septeabir 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 o.s 1.7 1.7 2.7 117 126 62 31 20 11 4,6 3.S .S 1.7 1.7 2.7 93 117 60 31 21 11 4.S 3.8 3 .e 1.7 1.7 2.7 75 307 58 31 21 11 5.5 3.8 .s 1.7 1.7 2.4 69 1,310 57 32 21 10 5.5 3.8 S .8 1.7 1.7 2.4 64 619 64 31 21 9.5 5 3.8 .s 1.7 1.7 2.4 60 417 83 30 19 9.5 5 3.S .s 1.7 1.7 2.4 57 332 68 30 18 9 4.8 3.6 .8 1.7 1.7 2.4 65 301 66 29 17 9 4.8 3.6 .8 1.7 1.9 2.4 50 274 62 29 16 S.5 4.6 3.6 10 .9 1.7 1.9 2.4 45 244 60 29 16 S 4.6 3.6 1.0 1.7 1.9 2.4 44 203 59 2S 15 8 4.6 3.3 1.3 1.7 1.7 2.4 45 165 58 27 16 S 4.4 3.3 1.1 1.7 1.7 2.4 39 154 66 26 16 8 4.4 3.3 1.1 1.7 1.7 2.4 34 144 54 26 15 8 4.4 3.3 15 1.1 1.7 1.7 2.4 34 128 54 27 14 7.5 4.4 3.3 1.0 1.7 1.7 2.4 31 117 53 26 13 7.5 4.2 3.3 1.0 1.7 1.9 2.4 30 108 * 50 25 13 7.5 4.4 3.3 1 O 1.0 1.9 2.0 2.4 28 113 47 24 12 7 4.4 3.3 19 1.0 2.3 2.0 2.4 27 96 45 23 12 7 4.4 3.3 20 1.0 2.0 a.9 2.4 29 90 43 22 12 7 4.2 3.3 .9 1.9 1.9 3.5 87 93 43 21 12 6.5 4.2 3.1 .9 1.9 1.9 3,400 541 97 43 21 12 6.5 4.2 3.1 »*z .9 1.9 1.9 4,510 460 90 42- 20 12 6.5 4.2 3.1 1.0 1.9 2.8 549 394 84 40 20 12 6 4.2 9.5 -79 25 1.1 1.7 6 182 250 41 20 12 6 4.2 7.5 2R 1.1 1.7 3.3 136 183 77 40 2O 12 5.5 4.0 4.2 27 1.1 1.7 2.9 152 150 74 39 19 12 5.5 3.S 3.8 2B 8.7 1.7 2.7 100 US 72 37 19 11 5 3.8 3.6 29 2.4 1.7 2.7 78 » 69 35 19 11 5 3.S 3.1 ?K> 2.0 1.7 2.7 104 - 68 32 19 11 5 3.S 2.9 31 1.9 ~ 2.7 190 ~ 64 - 19 - 4.8 3.S ~ Second*- Runoff in Month foot-days Ua-rlmmi 'Minim Mean acre-feet 54.7 2.7 0.8 1.12 69 52.9 2.3 1.7 December...... 67.1 6 1,-T 2,15 159 Calendar year 1842 ...... 2,059.9 28 .6 5.64 4,090 9,453.4 4,510 3,219 6,437 1,310 1,551 Hay...... 774 32 19 445 21 July...... 234.3 11 4.8 7.56 137.0 5.5 September...... U'4.1 9.5 2.9 3.80 226 Water year 1942-43 ...... 22,519.5 4,510 .8 61.7 44,670 Pacific war time. To convert war time to standard time, subtract 1 hour. LOS ANGEIJES RIVER BASIN 103 Tujunga Creek near Sunland, Calif. Q - water-stage rec&rder, lat. 34°17'55", long. 118°16'10", near center of see. 33, T. 3-N., R. 13 W.(unsurveyed), a quarter of a mile downstream from a partly con structed and abandoned dam, 2 miles upstream from mouth of canypn, and 4 miles north east of Sunland. Drainage area.- 106 square miles. Records available.- October 1916 to September 1943. Average discharge.- 26 years (1917-43), 32.1 second-feet. Extremes.- Maximum discharge during year, 23,000 second-feet (estimated) Jan. 23 (gage Kefght, 16.85 feet); minimum, 1.2 second-feet Nov. 10-15. 1916-43! Maximum discharge, 50,000 second-feet Mar. 2, 1938; minimum, 0,1 second- foot at times In summers of 1919, 1924, 1928-31. Remarks.- Flow regulated by flood-control dam 7 miles above station. Two or three small mverslons above station for irrigation. Cooperation.- Records furnished by Los Angeles county Flood Control District, through TTr E. HeSger, chief engineer, and M. E. Salsbury, acting chief engineer dur.'ng the war emergency. Discharge, in second-feet, water year October 1943 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July AU|T. Sept. 1 IB 3.5 1.5 2.5 315 770 110 le 9 9.5 4< 31 2 19 8.2 1.5 8,5 190 375 105 19 8.S 9.5 4< 46 - 3 18 8.0 1.5 8,5 120 655 100 81 9 9 4 Io 14 1.8 J..8 3.1 70 600 180 16 8 8.5 9 16 1.5 1.8 3,4 70 584 110 14 8 9,5 3S 23 10 23 1.8 1.8 4.6 110 503 105 13 8 9.5 3f 23 11 88 1.2 1.8 7 90 383 105 18 7.5 9.5 37 SZ 12 13 1.8 1.8 4.3 92 371 105 13 S 10 37 28 13 6.5 1.8 1.8 ' 4.3 61 575 95 14 7,5 9.5 3« 26 14 4.9 1.8 1.5 4.9 SO 880 95 14 7.5 9.5 31 35 15 4.3 1.8 1.5 6,5! 67 709 90 14 7 9 3* 30 16 4.6 1.5 1.5 5.5 67 315 90 14 6.6 18 3' 28 17 4.6 1.5 1.5 5 74 815 90 14 S.5 SO 35 25 18 4.3 1.5 1.5 6 59 830 88 12 6.5 31 37 9 19 4.3 8.5 1.5 6.5 45 190 84 11 7 28 37 11 20 4.3 2,8 1.8 6.5 45 190 88 10 8 85 36 8 21 6 8.0 1,8 7 91 145 77 10 9 30 SH 8 22 8 1,8 2.0 1,740 481 180 78 10 9 30 33 8 7 1.5 8.0 8,000 840 800 78 10 10 31 3* 7 9 ' 1.5 8.5 1,750 580 155 77 9 9.5 31 J2 6.5 25 15 1.5 4.6 500 850 140 77 8.5 9.5 32 J2 14 26 18 1.5 3,4 350 367 140 74 8.5 10 32 31 10 27 5 1.5 8.8 280 340 135 67 8 10 31 SO 8.5 28 4.9 1.5 2.8 80O 840 185 69 8 10 32 . 50 5.5 8 1.5 8,8 220 _ 120 47 8.5 10 38 SI 6.5 7 1.5 2,5 860 _ 120 17 9 9.5 43 21 6 3.1 2.5 36O - 115 9.5 - 43 31 - Second- Runoff in Month foot-days Maximum Minimum Mean acre- feet 389 8 654 98 December...... 68. 7 4.6 1.5 2.02 124 Calendar year 1948 ...... 3,873.0 60 1.2 10.6 7,680 8,000 2.5 444 87,680 February April ...... 5,340 Ihy...... JO Q 504 July...... September ...... 53 5.5 S3 .8 1,380 Hater year ...... 38,331,4 8 OOO 1,2 105 76r 040 Pacific war time. To convert war tine to standard time, subtract 1 hour. 104 LOS ANGELES RIVER BASIN Tujunga Creek below Hansen Dam, Calif. Location.- Water-stage recorder, lat. 34°15'10", long. 118°23'25", In Ex Mission San Fernando Grant, on Glen Oaks Boulevard Bridge, half a mile below Hansen Dam, and 3 miles southeast of San Fernando, Los Angeles County. Altitude of gag«, 950 feet. Drainage area.- 148 square miles. Records available.- October 1940 to September 1943 In reports of Geological Survey. April 1932 to September 1940 (fragmentary) and October 1940 to September 1943 In Annaul Reports of Los Angeles County Flood Control District. Extremes.- Maximum discharge during year, 1,780 second-feet Jan. 23; no flow for several montns. 1940-43: Maximum discharge, that of Jan. 23, 1943; no flow during part of each year. Remarks.- Storage and diversions above station. Flow regulated by Hansen flood-control Cooperation.- Records computed in cooperation with Corps of Engineers, u. S. Army, and LOS Angeies County Flood Control District, through H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the war emergency. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Deo. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 It) 0 830 515 106 40 31 47 4? 23 (t) 0 876 423 125 39 30 30 41 25 S 0 ' 633 213 125 38 . 3O d!7 42 38 3O3 755 112 39 30 d!6 40 36 0 0 1,020 96 38 30 d!5 39 35 6 (t) 0 63 1,020 125 40 29 d!4 36 33 7 0 221 965 125 42 28 d!3 35 31 (t) to 291 142 122 43 28 d!2 35 29 0 320 177 120 45 29 d!2 35 22 (t) 0 87 907 112 45 29 d!2 35 20 11 0 64 984 96 27 29 dll 35 17 12 (t) 0 64 972 96 33 29 dlO 35 Iff o 61 791 96 44 28 ' dlO 35 17 (t) to 57 a468 96 38 27 dll 34 29 15 (t) 0 57 a2S8 96 33 d!2 34 38 16 o 63 a!22 96 33 3V 12 35 35 (t) 0 59 a59 94 .33 69 18 35 S3 0 60 62 94 33 SO 27 34 12 19 (t) 0 59 65 96 32 29 - 29 34 6.5 0 a31 67 98 32 29 27 35 5 21 0 a31 69 98 32 22 34 33 4.2 (t) 6.5 86 71 98 32 26 36 33 3.9 23 (t) 602 738 73 9S 34 26 36 32 3.6 1,610 957 74 96 35 26 36 30 3.9 25 (t) 1,600 434 78 96 34 26 35 28 9 26 (t) al,110 322 80 96 33 23 34 26 12 aS67 82 94 33 23 34 25 19 a46 82 94 33 38 34 25 9 (t) 777 84 I 75 32 52 36 23 8.5 30 (t) 1,050 84 40 31 50 42 23 7 - 31 44 23 Second- Runoff IB Month foot-days Maximum MiniBUB Mean acre-feet Daeeriber ...... o 0 0 0 0 Calendar year 1942 ...... 1,087.0 59 O 2.98 2,150 March...... 59 toy...... S62 28 7 July...... 24.4 1,024 43 O-I September...... 566.6 38 3.e 1S.9 1,120 Rater year 1942-43 ...... 33,764.1 1,610 0 92.5 66,970 t Observation of no flow made on this day. a Ho gage-height record; discharge computed on basis of dam operation records discharge measurements. d Doubtful gage-height record; discharge computed on basis of four discharge me^sureraents and interpolation. Time "basis; Pacific war tim To convert war time to standard time, subtract 1 hour. LOS ANGELES RIVER BASIN 105 Little Tujunga Creek near San Fernando, Calif. Location.- Water-stage recorder, lat. 34°16'30*, long. 118°22'20V In Tujunga Grant, on t'ootnlll Boulevard Bridge, 4 miles east of San Fernando, Los Angeles County. Drainage area.- 21.0 square miles. Records available.- December 1928 to September 1943. Average discharge.- 15 years, 3.'49 second-feet. Extremes.- Maximum discharge during year, 3,700 second-feet Jan. 23 (gage height, 5.45 reet); no flow for several months. 1928-43: Maximum discharge, 8,500 second-feet Mar. 2, 1938; no flow for several months each year. Cooperation.- Records furnished by Los Angeles county Flood Control District, through H. to. Heager, chief engineer, and M. E. Salsbury, acting chief engineer during the war emergency. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. NOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0 40 25 9 3.8 1.2 2 0 25 25 S.5 3.7 1.2 3 0 15 50 S 3.6 .1 4 o 10 250 7,5 3.6 .1 5 0 8 300 8.5 3.5 ,1 6 0 7 100 13 3.4 .1 7 0 6 60 9 3.4 .1 8 0 10 50 15 3.3 1.0 9 0 6 55 10 3.2 1.0 10 0 5 45 9- 3.0 .9 11 0 4.5 40 8.5 2«S .9 12 0 4.0 30 S.5 2,6 .9 13 0 3.5 25 S.5 2.6 .8 14 0 3.5 20 8.5 2.5 .7 15 0 3.0 20 S 2.3 .6 16 0 2.5 20 S 2.1 .5 17 0 2.5 15 S 1.9 .4 18 0 2.5 20 8 1.7 .3 X91 Ck o 2.0 16 7.5 1.6 .3 20 0 2.0 14 7.5 1.5 ,2 21 0 3.0 13 7.5 1.6 .2 22 592 70 15 7.5 1.5 .1 23 500 100 13 7 1.5 .1 24 100 200 12 7 1.4 .1 25 10 60 12 6.5 1.4 .1 26 15 40 11 6 1.4 .1 27 20 35 10 5.5 1,4 .1 28 10 30 10 5 1.4 0 29 5 9 3.9 1.4 0 30 35 - 9.5 3.8 1.3 0 31 100 ~ 9.5 ~ 1.3 - Second- Runoff in Month foot-days Maximum Minimum Mean acre- feet October...... 0 0 0 0 0 November...... 0 0 0 0 December...... 0 0 0 0 ' . o Calendar year 1942 ...... 33.4 2.5 - o .09 66 January ...... 1,387 592 0 44.7 2 V50 February...... '...... 700 200 2.0 25.0 1^390* March...... 1,304.0 300 9 42.1 2, 590 April ...... 238.2 15 3.8 7.94 472 «ay...... 71.6 3.S 1.3 2*3X 142 June ...... 17.2 1.2 0 .57 34 July...... 0 0 0 0 0 Angust ...... 0 0 0 0 0 September...... O 0 0 0 0 Water year 1942-43 ...... 3.71S.O 592 0 10.2 7,380 Time baaia; Pacific war time. To convert war time to standard time, aubtract 1 hour. 106 LOS ANGELES RIVER BASIN Halnes Creek near Tujunga, Calif. Location.- Water-stage recorder and broad-crested weir, lat. 34°15'50'f , long. 118016'1511 , in NWtNWi sec. 17, T. 2 N., R. 13 W., half a mile upstream from movth of canyon and li miles northeast of Tujunga. Altitude of gage, about 2,430 feet (from topographic map). Drainage area.- 1.2 square miles. Records available.- February 1917 to September 1934, October 1935 to September 1943. Average discharge.- 25 years, 0.177 second-foot. Extremes.- Maximum discharge during year, 142 second-feet Jan. 23 (gafe height, 3.93 feet), from rating curve extended above 15 second-feet by weir formula; practically no flow at times In October, November, December. 1917-34. 1935-43: Maximum gage height, 11.0 feet Jan. 1, 1934 (discharge not determined); no flow for periods In most years. Remarks.- Records good except those for period of no gage-height record, which are poor. Diversions for domestic use above and-below gage. Discharge, in second-feet, water year October 1943 to September 1945 Day Oct. Nov. | Dec. Jan. Feb. Mar. Apr. May June July Au6. Sept. 1 L aO.Ol 2.0 1.7 0.88 0.29 0.21 0.09 0.04 0.02 2 II a. 01 1.9 1.6 .88 .52 .21 .09 .04 .02 3 >e0.003 a. 01 1.4 5.6 .85 .55 .24 .09 .04 .01 4 a. 01 1.2 6.5 .85 .59 .24 .09 .04 .01 S a. 01 1.1 5.4 - .85 .42 .24 ,09 .04 .01 6 1 .01 a. 01 1.0 5.0 .88 .39 .24 .09 .04 .01 7 .01 a. 01 .88 2.8 .73 .35 .24 .09 .04 .01 8 .01 a. 01 .83 2.5 .78 .32 .24 .09 .04 .01 9 .01 a. 01 .75 2.4 .75 .32 .24 .09 .04 .01 10 .01 a. 01 .64 2.2 .69 .29 .24 .08 .04 .01 11 .01 a. 01 .57 1.9 .64 .29 .24 .08 .04 .01 12 .01 a. 01 .55 1.7 .60 .26 4 .08 .03 .01 13 .01 a. 01 .49 1.6 .57 .26 §4 .08 .03 .01 14 .01 a. 01 .49 1.5 .57 .26 .24 .08 .05 .01 IS .01 a. 01 .46 1.4 .53 .26 .21 .08 .03 .01 eO.002 60.003 16 .01 a. 01 .42 1.2 .49 .26 .21 .08 .03 .01 17 .01 a. 01 .42 1.2 .46 .26 .19 .08 .05 .01 18 .01 a. 01 .39 1.0 .42 .24 .19 .06 .05 .01 19 .01 a. 01 .59 1.0 .39 .24 .19 .06 .05 .01 20 .01 a. 01 .59 1.0 .59 .24 .17 .06 .05 .01 21 .01 a. 02 .49 1.0 .59 .21 .17 .06 .05 .01 22 .01 a!4 1.7 1.0 -.35 .21 .17 .05 .05 .01 23 .01 a55 1.5 1.0 .55 .19 .17 .05 .05 .01 24 * -.01 aS 5.4 1.0 .55 .19 .17 .05 .05 .01 25 .01 a2.5 2.1 1.0 .52 .17 .15 .05 ,03 .01 26 .01 al.7 1.9 1.0 .29 .17 .15 .04 .02 .01 27 .01 i.e 1.8 1.0 .26 .19 .13 .04 .02 .01 28 .01 1.3 1.8 1.0 .26 .19 ,13 .04 .02 .01 29 .01 1.2 . 1.0 .84 .19 .11 .04 .02 .01 30 .01 2.5 _ .93 .86 .19 .09 .04 .02 .01 31 " a. 01 5.2 - .88 - .21 - .04 .02 - Second- Runoff in Month foot-days Maximum JliniBtun tfean acre- feet -_ October...... 0.062 0.002 0..1 November...... 090 _ _ .005 .2 December...... 275 0.01 - .0089 .5 Calendar year 1942 ...... 9.128 .15 - , .0250 18 January...... :...... 35 0.01 2.20 135 February...... 30.92 3.4 ' . 39 1 . 10 61 March...... 55.91 6.5 .88 1.74 107 April...... ~" 16 . 19 «ooQO .24 -K40 - 32 May. 8.12 .42 .r .262 16 June...... 5.90 24 - .OS .197 12 July...... 2 . -Ltf1 ^ »Q9 .0* .(TK9 ^£.6A p August '.3298 !04 .02 .030 1.9 September...... 02 .01 .011 ,6 Rater year 1942-45 ...... 187.117 35 .513 370 Peak discharge.- Jan. 23 (1 a.m.) 142 sec.-ft.; Jan. 30 (9:30 p.m.) 20 sec.-ft.; Bar. 3 (6:50 p.m.) 14 sec.-ft.; Mar. 4 (5 a.m.) 29 sec.-ft. a No gage-height record; discharge computed OB basis at four discharge measurements,"recorded range In stage, interpolation, and records for Arroyo Seco near Pasadena. e Dally discharge less than 0.01 second-foot. Time basis: Pacific war time. To convert war time to .standard, time, sabtwct- 1 hour. LOS ANSELES RIVER BASIN 10y Arroyo Seco near Pasadena, Calif. Location..- Vfeter-stage recorder and broad-crested weir control, lat. 34013'20", long. nSTo"'40", near north line of sec. 31, T. 2 N., R. 12 W., It miles upetrean from MLllard Canyon and 5i miles northwest of Pasadena. Altitude of gage, about 1,400 feet. Drainage area.- 16.4 square miles. Records available.- December 1910 to September 1943. Average discharge.- 29 years (1913-15, 1916-43), 10.7 second-feet. Extremes.- Maximum discharge during year, 5,660 second-feet Jan.-23 (gage height, 11.86 feet), from rating curve extended above 1,200 second-feet on basis of slope-area method and relation between mean velocity and mean depth; minimum daily, 0.4 second-foot on Oct. 1. 1910-43: Maximum discharge, 8,620 second-feet War. 2, 1938, by slope-area method; practically no flow for several months in most years'. Remarks,- Records good. -No diversions above station. Cooperation.- Thirty-one discharge measurements furnished by Log Angeles County Flood Con- trol District, through H, E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the war emergency. Discharge, la second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Alg. Sept. ei 84 30 16 10 4.7 4.2 2.6 2 .5 .9 1.0 . 1.4 65 79 2S 16 10 4.7 4.2 2.6 3 .5 .9 .9 1.3 56 126 27 15 10 4.9 4.2 2.6 4 .5 .9 .9 1.2 50 476 26 16 10 4.9 4.2 2.4 S .5 .S 1.0 1.1 46 434 30 16 9.5 4.9 4.0 2.4 6 .e .8 1.0 1.1 41 294 40 15 9 4.5 3.8 2.4 7 .6 .8 1.0 40 236 33 15 9 4.5 5.8 2.4 8 .6 .8 ilo 1.0 40 191 37 14 8.5 f4.4 3.6 2.2 9 .6 .8 1.0 1.1 33 150 33 14 8.5 a4.4 3.6 go * 10 .6 .8 1.0 1.1 30 126 30 IS f8.5 f4.4 3.6 11 .6 .6 1.0 1.1 28 104 29 13 a9.5 4.4 3.4 2.1 12 .8 .8 1.0 1.2 24 89 27 . is flO 4.4 3.4 2.1 13 .7 .8 1.1 1.2 22 74 26 13 9.5 4.6 3.3 2.2 14 .7 .8 1.1 1.2 20 68 25 13 9 4.6 3.3 2.4 IS . .6 .9 1.0 1.2 19 67 23 13 8 4.6 3.3 2.2 16 .6 .9 1.0 1.3 18 63 22 13 7.5 4.6 3.3 2.2 17 .6 1.0 1.0 1.3 17 61 21 13 7.5 4.4 3.3 2.2 18 .6 1.2 1.1 1.4 16 60 20 12 7 4.4 3.3 2.1 19 .7 1.6 1.1 1.4 14 54 20 12 6.5 4.4 - 3.3 2.0 20 .7 1.0 1.1 1.4 14 51 20 11 6.5 4.4 3.3 2.0 21 ..7 1.2 1.2 2.1 37 ' 49 20 11 6 4.4 3.3 1.8 22 .7 1.2 1.2 1,120 207 49 20 11 6 4.2 3.4 1.7 23 .7 1.2 1.3 1,760 206 45 19 11 6 4.2 3.4 l.S 24 .S 1.1 2.0 314 202 42 19 11 6 4.0 3.4 l.S 25 .8 1.0 5 134 169 40 19 11 5.5 4.0 3.4 . 2.0 26 .8 1.0 2.2 91 128 37 19 11 5 4.0 3.4 2.1 27 .8 1.0 2.0 79 108 36 18 10 5.5 4.0 3.3 2.4 v 28 1.4 1.0 1.8 56 95 35 18 10 5.5 4.2 2.4 29 1.1 1.0 1.7 49 34 18 10 5 4.2 2l9 2.2 30 1.0 1.0 1.7 62 33 16 10 4.9 4.2 2.9 2.1 31 1.0 1.6 129 32 9.5 4.2 2.7 Runoff in Month fo^ Minimum Mean acre-feet Gotoher...... 21.7 1.4 0.4 0.70 43 Hove ber 29.2 1.6 .8 .97 58 Decenher...... 42.0 5 .9 1.35 83 Calendar year 1942 S84.1 20 .4 2.4E 1,750 Janu &ry i3,820.6 1,760 1.0 123 7,580 Febr 1,826 207 14 65.2 3,620 Hare 3,319 476 32 107 6,680 Apri 733 40 24.4 1,450 Hay. 391.5 16 9.5 12.6 til June 229.4 10 4.9 7.65 455 July 136.7 4.9 4.0 4.41 271 Augtt 107.6 4.2 2.7 3.47 213 September...... 65.7 2.6 1.7 2.19 130 Water year 1942-43 ...... 10,722.4 1,760 .4 29.4 21,860 Peak dls charge.- Jan. 23 (1:30 a.m.) 5,660 sec.-ft.; Jan. 31 (8 a.m.) 152 sec. -ft. 5 Feb. 8 (6:30 a.m. J 49 see. -ft. j Feb. 28 (6i30 p.m.) 635 sec.-ft.; Mar. 4 (4:30 a.m.) 758 sec.-ft. a Ho gage-height record; discharge Interpolated, f Computed on basis of partly estimated gage-height record. Time basis i Faclfie war time. To convert war time to standard time, subtract 1 hour. 108 LOS ANGELES RIVER BASIN Santa Anita Creek near Sierra Madre, Calif. Location.- Water-stage recorder, lat. 34°11'30", long. 118°01'00", In SV'^NEi sec. 10, T. IN., R. 11 w., at head of Herml'te Falls, 4 miles northeast of sierra Madre. Altitude of gage, about 1,460 feet (from topographic map). Drainage area.- 10.5 square miles. Records available^- July 1916 to September 1943. Average discharge.- 27 years, 6.50 second-feet. Extremes.- Maximum discharge during year, 2,530 second-feet Jan. 23 (ga^e height, 12.23 reet), from rating curve extended above 200 second-feet by logarithmic plotting on basis of relation between mean velocity and mean depth; minimum dailr, 0.4 second-foot Oct. 1-8. 1916-43: Maximum discharge, about 5,200 second-feet Mar. 2, 1938, based on Inflow to flood-control reservoir; practically no flow Aug. 18 to Sept. 14, 1929. Remarks.- Records good below 200 second-feet and fair above. NO diversion above station. Discharge, in'second-feet, water year October 1943 to September 1943 Daj Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.4 0.8 0.9 1.1 73 54 28 16 11 5.5 3.1 2.1 2 .4 .7 .9 1.1 64 50 27 16 11 5.5 3.2 2.1 S ,4 .7 .9 1.1 56 114 26 ie 10 5.5 3.4 2.1 4 .4 .8 .9 1.1 49 522 25 16 10 5.5 3.6 2.1 5 .4 .3 1.0 1.1 45 361 27 16 10 5.5 3.6 2.1 6 .4 .8 1.0 1.0 40 213 32 15 9 5 . 3.4 2.1 7 .4 .8 1.0 1.0 a36 156 26 14 9 4.9 3.4 2.1 8 .4 .7 1.0 1.0 f36 f!41 30 14 8.5 4.9 3.2 2.1 9 .5 .7 1.0 1.0 a30 a!12 27 13 S 4.7 3.1 2.1 10 .5 .7 .9 1.0 a26 a95 26 13 8.5 4.9 3.1 2.1 11 .7 .6 .9 1.0 24 f85 25 13 S.5 4.9 2.9 2.1 12 1.2 .6 .9 1.0 22 79 24 13 9 4.9 2.9 2.1 13 .7 .6 .9 1.0 21 74 23 12 9 4.9 2.9 2.1 14 .6 .6 .9 1.0 20 69 23 12 S 5 3.1 2.1 15 .6 .7 .9 1.0- 19 66 22 12 7.5 5 3.1 2.1 2'.9 IB .6 .8 .9 1.0 18 62 22 12 7.5 5 2.1 .6 .3 .9 1.1 as 60 21 12 7 4.9 2.9 2,0 .6 .8 .9 1.1 17 59 19 11 7 4.7 2.9 1.8 19 .6 1.5 1.0 1.1 17 53 19 11 7 4.7 2.9 l.S 20 .6 1.1 1.0 1.1 16 49 18 11 7 4.5 2.9 1.8 S!l .6 1.0 .9 1.7 33 46 18 11 6.5 4.3 2.9 1.7 22 .5 .9 .9 912 129 45 IS 11 6.5 4.1 2.8 1.7 ?X .5 .9 1.0 902 112 42 17 10 6.5 4.0 2.6 24 .6 .9 1.8 f!69 120 41 17 11 6.5 3.8 2.5 2.0 25 .6 .9 3.7 f92 92 38 17 11 6 3.4 2.4 2.4 ?6 .6 .9 1.7 75 78 37 17 11 6 3.4 2.2 2.5 27 .6 .9 1.4 67 68 35 ' 17 11 6 3.2 2.1 2.5 2ft 1.3 .9 1.3 64 60 34 10 6 3.2 2.1 2.5 29 1.3 .9 1.2 48 32 17 11 6 3.2 2.1 2.4 SO 1.0 .9 1.2 70 _ 31 16 11 5.5 3.2 2.1 2.1 31 .8 - 1.2 104 - 29 ~ 11 ~ 3.1 2.1 ~ Second- Runoff in Month foot-days Maximum IliliiaMin Jteaa acre-feet 19.0 1.3 0.4 0.61 38 24.7 1.5 .6 .88 49 December ...... 35.0 3.7 .6 , 1.13 69 Calendar year 1942 ...... 642.1 8 .3 1.76^ 1,270 2,515.6 912 1.0 81.1 4,990 1,339 129 16 47.S 2,660 2,884 522 29 93.0 5.72O 661 32 16 22.0 1,310 387 16 10 12.5 768 234.0 11 5.5 7. SO 464 139.3 5.5 3.1 4.49 276 8S.4 3.6 2.1 2.S6 175 September ...... 62.5 2.5 1.7 2.08 124 Water year 1942-43 ...... 8,389.5 912 .4 23.0 16,640 Peak discharge.- Jan. 23 (1:30 a.m.) 2,530 sec. -ft.; Jan. 30 (12 p.m.) 168 sec. -ft.; Feb. 22 18 12:30 a.m.) 66 sec.-ft. a Ho gage-height record; discharge computed on basis of probable discharge recession curve, f Computed on basis of partly estimated gage-height record. Time basis; pacific war time. To convert war time to standard time, subtract 1 hour. LOS ANGELES RIVER BASIN 109 Little Santa Anita Creek near Sierra Madre, Calif. Location.- Water-stage recorder and concrete control, lat. 34°11'15", long. 118°02'35", near center of WWi sec. 9, T. IN., R. 11 W., 2 miles northeast of Sierra Madre. Altitude of gage, about 2,200 feet (from topographic map)* Drainage area.- 1.9 square miles. Records available.- April 1916 to September 1943. Average discharge.- 26 years (1916-25, 1926-43), 1.01 second-feet. Extremes.- Maximum discharge during year, 3E4 second-feet Mar. 4 (gage height, 3.75 reet;, from rating curve extended above 75 second-feet by logarithmic plotting; minimum dally, 0.1 second-foot many days. -1916-43: Maximum discharge, 536 second-feet Mar. 2, 1938, computed on basis of Inflow to Sierra Madre flood-control reservoir; no flow during periods In 1919, 19E4, 1925. Remarks.- Records good. No diversion above station. Discharge, in second-feet, water yeftr October 194S to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 0.1 0.1 O.S 0.2 IX 11 5 2.5 1.8 .2 0.6 0.4 2 .r .1 .2 .2 10 11 4.7 2.5 1.8 ..S .6 .4 3 .1 -.1 .2 .2 9.5 25 4.7 2.5 1.7 ..2 .6 .4 4 .1 v -I .2 .2 S SI 4.S 2.5 1.8 .2 .7 .4 5 .1 .1 .S .2 7 69 5 2.5 1.8 .1 .6- .4 6 .1 .1 .2 .2 6 52 6 2.5 1.7 .1 .6 .4 7 .1 .1 .2 .2 6 34 4.7 2.5 1.6 ..0 .6 .4 8 .1 .1 .2 .1 5.5 24 5.5 2.6 1.5 .0 .6 .4 9 .1 .1 .2 .1 4.7 22 5 2.6 1.5 ..0 .6 .4 10 .1 .1 .2 .1 4.5 20 4.7 2.7 1.5 .0 .6 .4 11 .1 .1 .2 .1 4.3 IS 4,7 2.7 1.5 1.0 .6 .4 12 .3 .1 .2 .1 4.1 16 4.5 2.7 1.6 1.0 .6 .4 13 .1 .1 .2 .1 3.8 14 4.3 2.6 1.6 .9 .6 .4 14 .1 .1 .1 .1 3.6 13 4.1 2.6 1.4 .9 .6 .4 15 .1 .1 .1 .1 3.6 12 4.1 2.5 1.4 .9 .6 , .4 J.Q 17 .1 .1 .1 .1 3.2 11 3.7 2.3 1.3 .9 .5 .4 18 .1 .1 .2 ,1 3.1 11 3.6 2.2 1.3 .8 .5 .4 19 .1 .3 .2 .1 2,9 9.5 3.6 2.1 1.2 .8 .5 .4 20 .1 .2 .2 .1 2.9 9 3.6 2.1 1.2 .8 .5 .4 21 .1 .2 .3 .3 5.5 S.5 3.4 2.1 1.2 .S .5 .4 22 .1 .2 .2 95 19 S 3.2 2.1 1.1 .8 .5 .4 - 23 .1 .2 .2 59 16 8 3.2 2.1 1.1 .8 .5 .4 24 .1 .2 .4 19 20 7.5 3.0 2.1 1.1 .7 .5 .4 25 .1 .2 .8 15 16 7 3.O 2.1 1.1 «7 .5 .5 26 .1 .2 .3 12 13 7 3.0 2.1 1.1 .7 .5 .5 27 .1 .2 .3 10 12 6.5 2.9 2.0 1.1 .6 .5 .5 28 .3 .2 .2 8 12 6 2.9 1.8 1.1 .6 .4 .5 29 .2 .2 .2 7 6 2.7 l.S 1.1 .6 .4 .5 30 .2 .2 .2 10 _ 6 2.6 1.8 1.1 .6 .4 .4 31 .1 - .2 15 - 5.5 l.S - .6 .4 - Seccnd- Runoff in Month foot-days Maximum Minimum Mean acre-feet 3.7 0.3 0.1 O.12 7.3 4.3 .3 .1 .14 ' 8.5 December ...... 6.8 .8 .1 .2S 13 . Calendar year 1942 ...... :...... 111.1 1.0 .1 .30 219 March. A...... 549.5 81 119.8 Hay 71.3 2.7 1.8 2.30 41.7 i.e 1.1 1.3<9 83 July...... 27.4 1.2 .88 16.7 .7 .4 .51 33 September...... 12.5 .5 .4 .48 25 Water year 1942-43 ...... 1,327.3 95 .1 3.6* 8,630 Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour1 110 LOS ANGELES RIVER BASIN Eaton Creek near Pasadena, Calif. Location.- Water-stage recorder and broad-crested weir, lat. 34°11'4011 , long. 118*06'15"7 Tn~S£5 sec. 2, T. 1 N., R. 12 w., at mouth of canyon, just upstream from bridge on old Maunt Wilson toll road and 4 miles northeast of Pasadena. Altitude of gage, about 1,230 feet (from topographic map). Drainage area.- 6.5 square miles. Records available.- March 1918 to September 1943. Average discharge.- 25 years, 2.88 second-feet. Average combined discharge of .creek and diversion, 25 years, 4.07 second-feet. Extremes.- Maximum discharge during year, 813 second-feet Jan. 23 (gage height, 3.49 feet), from rating curve extended above 500 second-feet on basis of critical velocity over broad-crested weir; no flow for several months. 1918-43: Maximum discharge, 2,400 second-feet Mar. 2, 1938, from record of inflow to Eaton flood-control reservoir; no flow for some periods In each year. Remarks.- Records good except those for Dec. 25, 26, Jan.*22-25, which are fair, Records do not include water diverted above station by city of Pasadena. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0 0 32 29 6 4.2 1.2 2 0 0 27 27 6.5 3.6 1.5 3 0 0 22 51 5.5 3.6 1.2 4 0 0 20 168 5.5 4.2 1.4 5 0 0 18 192 9.5 4.0 .7 6 0 0 16 120 24 3.6 0 7 0 0 13 88 9 3.6 0 8 0 0 14 76 28 3.4 0 9 0 0 10 66 17 2.2 0 10 0 0 13 58 10 1.9 0 11 0 0 11 50 11 1.0 .1 12 >. 0 0 7.5 45 11 .9 1.0 13 0 0 7 40 10 1.8 .5 14 0 0 8 38 10 1.8 0 15 0 0 6 32 10 1.8 0 16 0 0 5.5 32 10 1.6 0 ' 17 0 0 4.9 29 8 1.5 0 18 0 0 5 30 8 1.4 O 19 0 0 6 29 7.5 .5 0 20 0 0 S.5 26 7.5 .3 0 21 o 0 15 25 6.5 1.5 0 22 0 432 75 24 6 .6 0 23 0 381 60 23 4.8 .2 0 24 0 flOl 68 25 4.8 .4 0 v 25 1.4 40 44 19 4.6 .8 0 26 .1 29 39 16 5.5 1.0 0 27 0 S5 36 14 5.S 1.4 o 28 0 17 33 14 5.S 1.0 0 29 / 0 15 12 5 .6 o 30 0 24 _ 16 5 .6 0 31 0 65 - 8 - : .7 - - Second Diversion Month Maximum HirftiBum Hean Rwx>« tn in foot-days ae^«-feet aors-feett October ...... *..... 0 0 0 0 0 ' 5038 November ...... 0 0 0 0 0 December ...... 1. 5 1.4 0 .0 > 3.0 54 Calendar year 1942 ...... 17. 6 7 0 9 j 35 970 January ...... 1,129 43£! 0 36.4 2,840 95 February ...... 6X@* 2 5 88.1 1,830 226 March ...... 1,484 1iyfr QO 8 45,9 8,880 040 April ...... fiva ft ftf 1 28 4 Ao 8 © I 530 308 May 55 e 4.B .2 1 »tSkft 3 111 337 June ...... ?! 3 1.5 0 .ei5 ' 16 290 July ...... 0 0 0 0 0 802 Augu St ...... 0 0 0 0 0 142 September ...... 0 Q 0 Q Q 106 Water year 1942-43 ...... 3,503. S 432 0 9.6 ) 6,960 2,090 {1 p.m.) 160 sec.-ft.; Feb. 22 (8 p.m.) 155 sec.-ft.j Feb. 84 (8 a.m.) ISO «eo.-fvj Rweu 4 (l!30 a.m.) 344 aec.-ft. t Diversion by city of Pasadena. Records furnished by that city. f Computed on basis of partly estimated gage-height record. Time basis: Pacific war time. To convert war time to standard time, subtract 1 liour. LOS ANGELES RIVER BASIN 111 Rio Hondo near Hontebello, Oallf. Location,-Water-stage recorder, lat. 34S01*55", long. il8 e04'15", In Potrero OrancJe Srant, at Montebello oil field, 1,000 feet upstream from Mission Bridge aad 2 miles northeast of Montebello, Los Angeles County. Altitude of gage, about 200 feet. Records available-,- October 1928 to September 1943. Average discharge.- 15 years, 67.3 second-feet. Extremes... l&ximum discharge, during year, 13,200 second-feet Jan, 23 (gage height, 11 reet); minimum, 16 second-feet on several days in October. 1928-43: Itoximum discharge, 28,000 second-feet Mar. 2, 1938; minimum, 0.3 seoond- foot Dec. 1, 1933. Remarks.- Some water from San Gabriel River drains down Rio Hondo. Cooperation.- Records furnished by Los Angeles County Flood Control District', thror<* ft. B. Hedger, chief engineer, and ff. E. Salsbury, acting chief engineer during the war emergency. Discharge, in second-feet, water year October 1948 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 81 84 84 86 50 43 43 34 31 88 31 89 2 88 24 25 27 48 50 40 31 35 50 30 89 3 81 84 84 86 46 1,090 43 30 33 30 88 29 4 81 84 84 26 40 8,470 41 31 34 89 29 ' 89 5 20 26 84 25 35 609 98 31, 35 89 30 89 6 80 26 84 84 31 477 146 33 36 88 50 31 7 80 86 24 84 30 894 64 58 56 89 S3 31 8 2Q 84 86 24 119 876 66 38 51 88 88 30 9 80 85 86 26 40 819 48 56 34 89 89 31 10 81 84 87 26 34 183 60 34. 30 30 89 SO U 21 84 86 26 34 216 46 34 31 89 30 31 12 89 24 85 86 56 116 46 33 34 89 31 89 13 20 24 85 6 38 110 40 54 36 86 30 89 14 20 26 87 §6 40 99 38 S4 56 86 30 50 19 88 84 86 86 41 105 41 41 34 89 31 88 16 28 26 86 84 34 82 41 43 33 89 31 89 17 81 25 86 24 34 117 41 43 30 33 89 80 18 80 36 87 8S 34 187 40 40 30 36 86 50 19 SO 71 27 83 34 68 54 38 S3 38 89 88 20 88 29 27 23 54 60 34 41 33 34 30 E6 21 21 29 87 871 160 50 34 38 30 34 39 86 28 81 28 87 4.O8O 769 66 SI 40 33 56 88 84 23 21 27 88 4,650 3S5 43 S3 40 54 50 61 22 24 28 87 66 500 333 36 33 38 34 56 31 85 25 21 27 108 100 185 40 33 36 33 31 * 88 84 26 82 86 SI 200 161 36 34 35 33 50 31 84 27 88 25 31 158 . 89 36 33 33 30 35 SO 86 28 117 85 SI 71 54 36 SO 33 89 55 31 38 29 29 25 30 58 40 31 31 88 30 31 29 30 84 84 89 300 _ 36 33 86 86 89 89 89 31 24 - 31 180 - 41 " 30 " 89 89 Seccnd- Runoff la Month foot-days Maximum Minimum Bean ac."e-feet October...... 767 117 80 84.7 1,580 November...... SOS 71 84 86.8 1,690 December ...... 947 108 84 30.5 %8BO Calendar year 1942 «. 18,898 890 17 53.7 84,380 January...... 10,973 4,660 83 354 81,760 February...... 8,697 769 SO 105 6,760 March; ...... 7,469 8,470 56 841 14,790 April...... 1,368 146 30 45.6 2,690 itay.Unv ...... 1,095 45 86 38, 3- 8,170 June ...... 971 SB 86 38.4 1,950 July...... 949 38 85 30.6 1,880 August ...... 986 35 86 89.9 1.340 September, ...... 844 31 & 38.1 1,670 Water year 1942-4S ...... 99,989 4,650 80 38.8 59,470 Time basis'; Paciflo war tjjae. So convert war tine to standard time, subtract 1 hour. 112 LOS ANGELES RIVER BASIN Rio Hondo near Downey, Calif. Location.- water stage recorder, lat. 33°56'4pn , long. 118009'50n , In San Antonio Grant, on Stewart and Gray Road Bridge, half a mile upstream from mouth and 1& miles west of Dovmey, Los Angeles County. Altitude of gage, about 95 feet. Records available.-^ March 1928 to September 1943. Average discharge.- 15 years, 38.1 second-feet. Extremes-*. raximum discharge during year, 11,800 Second-feet Jan. 23 (gage height, 10.85 feetj; no flow at times, 1928-43: raxlmum discharge, 24,400 second-feet Mar. 3, 1938 (gage height, 15.5 feet); no flow during part of each year. Remarks.- gome water from San Gabriel River drains down Rio Hondo. Cooperation.- Records furnished by Los Angeles County Flood Control District, through H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the war emergency. . Discharge . In second-feet, water year October 1942 tc September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. Bay June July Aug. Sept. i 3.0 15 4.9 1.4 3.7 3.4 1.8 3,4 3.4 3.6 3.8 13 6 1.0 62 .5 2.9 5.5 3.8 4.5 4.5 3.S S 4.5 S S .7 35 860 0 5.5 3.0 3.4 3.4 4.1 e 10 7 1.0 15 2.600 .3 4.5 4.1 3.S 7 4.9 1.3 6 800 3,0 4.9 3.0 3.4 4.1 3.4 6 6 7 , 5.5 1.8 4.9 636 101 2.2 3.0 3.4 4.1 3.0 S 4.1 3.0 3.4 427 e 4.5 2.2 4.9 3.0 3.S 4.1 113 31S 13 3.4 3.0 4.1 3.4 3.4 3.4 4.9 6 4.5 4.1 290 11 4.1 3.0 3.6 3.4 10 4.5 7 4.5 2.2 .5 176 15 4.5 4.1 2.6 5:1 11 9.5 7 4.1 3.4 .5 234 5.5 2.2 7 6 1.3 3.6 12 3.6 7 3.4 3.6 0 48 1.0 1.3 3.8 4.1 3.4 4.5 13 0 3.0 4.5 1.4 0 38 1.4 3.0 4.1 l.S 3.0 4.9 14 3.0 3.0 4.1 1.4 0 27 2.6 5,5 4.5 3.0 4.1 4.J. 15 4.9 2.6 3.8 3.0 0 27 1.4 6 3.4 3.4 4.9 4.5 16 4.1 .5 2.6 1.8 0 12 1.0 4.5 3.4 4.5 3.4 5.5 17 6 3.0 4.9 1.8 0 12 .7 1.4 3.P 4.5 3.0 4.9 e.s 5.5 1.3 1.8 0 120 0 4.1 2.2 1.4 3.4 3.S 19 4.9 5.5 i.e 1.4 .3 42 .7 1.3 2.2 3.8 3.4 4.1 20 5.5 7 4.9 1.0 1.0 27 0 3.S 4.1 3.8 3.6 4.1 21 6 6 5,5 4.5 40 15 0 .3 3.8 2,6 4.1 4.9 22 5.5 5.5 4.9 4,090 774 17 0 .2 3.8 2.6 7 6 23 e 4.5 3.0 4,660'610 314 11 .7 .7 4.1 2.6 4.5 5.5 24 9.5 5.5 10 263 6 0 i.e 2,6 4.1 3.0 6 25 12 4.9 3.4 210 132 4.9 0 1.1 4.5 - 4.5 3.0 4.5 26 30 e.5 .8 220 102 0.5 0 1,4 3.8 4.1 1.4 4.5 27 11 7 4.1 406 40 7.5 0 * 0 1.8 4.1 4.5 2.6 4.1 28 15 5.5 3.4 35 13 7 2.6 3.4 - 4.5 2.6 4.5 2.2 7 4.1 15 _ 6 0 1.4 3.8 4.6 3.8 5.5 1-1 4.9 3,4 220 _ 5.5 V0 ' 1.1. 4.1 4.6 . 2.6 3.4 - 2.2 538 - 4.5 1.4 3.8 3.8 Seoond- Runoff in Month foot-days MnxImnB Minima Mean acre-feet December...... '...... 135.6 10 .8 4.37 269 Calendar year 1942 ...... 2,217.9 183 0 6.00 4,400 February 72 3 .March...... 319 Bay...... fiQ A. g * rf* 229 August September ...... 130.1 6 3.0 4.34 258 Water year 1942-43 ...... 21,129.7 4,660 0 5V 9 41,920 Tlma baals; Pacific war time. To convert war time to standard time, subtract 1 hour. LOS AMOSLES RIVER BASIN US Rio Hondo Slough near Montebello, Calif. Location.- Water-rstage r««ersiar» lat. 34*01*45", long. 118°04 I 0711 , in Paso de Bartolo Grant, at San Gabriel Boulevard Bridge, 2 miles northeast of Montebe].lo, Los Argeles County. Records available.- October 1@38 to September 1943. Average discharge.- 10 yeara (1932-37, 1938-43), 19.0 second-feet. Extremes.- Maximum discharge during year, 252 seconds-feet Jan. 22 (gage height, 11.17 feet); minimum, 18 second-feet lug. 6. 1932-43: Ifexlmum discharge not determined, occurred on Mar. 2, 1938; minimum, 4.8 second-feet Oct. 4, 1935. Remarks.- Some water from San Gabriel River drains down Rio Hondo Slough. Cooperation.- Records furnished by Los Angeles County Flood Control District, through H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer, during- the war emergency. * Discharge, la second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May Jene July Aug. Sept. 1 21 20 22 21 35 27 25 SB 24 ei 20 2 21 21 22 21 31 27 25 26 tt 1 ei 3 1 21 21 22 21 29 44 25 2« 21 e 4 21 21 22 20 28 71 24 86 i?4 21 20 5 21 21 21 20 27 47 25 26 £4 21 20 6 22 21 22 20 27' 34 26 26 84 ftl 21 ; 21 7 22 21 22 20 26 31 26 88 88 fti. 21 21 R 22 21 22 21 28 30 26 25 24 ' Hi. 2C 21 9 22 21 22 20 27 29 26 25 23 fta. 21 21 10 22 21 22 20 26 23 26 26 23 fei 2C 20 11 22 21 22 20 26 27 26 24 24 ei 2C 19 12 22 21 22 20 26 26 26 24 24 21 sc 20 13 22 20 22 20 26 26 26 24 24 SO BO 20 T4 22 20 21 20 26 26 26 24 24 > ei 20 20 15 22 21 21 21 26 26 26 24 24 21 21 2O 16 22 21 21 21 26 24 26 25 23 81 20 CO 17 22 21 22 21 26 25 26 24 22 ei 2C BO 18 22 21 22 22 26 26 26 24 22 82 20 20 19 22 21 22 22 26 25 26 24 23 22 20 21 20 22 21 22 22 26 24 26 24 23 22 20 21 21 22 21 22 25 28 24 26 24 22 21 23. 81 Jffi 22 21 21 101 40 24 26 24 22 21 23. 21 23 22 21 21 75 47 24 26 24 22 21 23. 20 74 22 21 23 50 41 24 26 24 22 21 21 20 25 21 21 27 40 34 24 26 24 22 21 21 21 26 21 22 24 39 38 24 26 24 22 21 23. 21 21 22 23 44 30 25 25 24 22 20 23. 21 2R 22 21 22 35 30 25 25 24 22 20 23. 21 29 21 22 22 32 - 25 25 24 22 20 23 21 30 21 22 22 35 - 26 25 24 21 21 23. 21 31 21 22 54 ~ 25 - 24 - 21 21 - Seoond- R'loff in Month foot-days Maximum Minimum Head aire-feet 671 22 21.6 November...... 631 22 20 21.0 1,250 December...... 685 27 21 22.1 1,36O Calendar year 1942 ...... 3,898 35 20 24.4 17,850 943 29 «5 06 24 689 22 September...... 614 21 19 20.5 1,260 Hater yo»t l&42-*8 ...... 8, -773 101 19 24.0 17,410 lime ftssiai Pacific war ii»e. 9o 6ott*ert war tlrte to standard time, subtract 1 hou*. 114 BALLONA CRJEK BASIN Ballona Creek near Culver City, Calif. Location.- Water-stage recorder, lat. 33°59 150", long. 118°24'10lt f In La Ballona Grant, on sawtelle Boulevard Bridge, 1& miles south of Culver City, Los Angeles County. Altitude of gage-, about 40 feet. Drainage area.- Ill square miles. Records available.- February 1988 to September 1943. Average discharge.- 15 years, 37.4 second-feet. Extremes.- Maximum discharge during year, 13,210 second-feet Jan. 22 (gage height, 13.00 feetJ; minimum, 1.4 second-feet Aug. 27. 1928-43: Maximum discharge, 19,000 second-feet Mar. 2, 1938; no flow during parts of most years. ' Cooperation.- Records furnished by Los Angeles County Flood Cpntrol District, through H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during-the war emergency., Discharge, in second-feet, water year October 1942 to September Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June Jlly Aug. Sept. 1 7.5 a. s 5.5 5.5 17 18 8 5 6.5 9 6 9 2 7.5 5.5 9.5 5.5 14 IE 10 4.4 6.5 8 7 6 3 6.5 6 8.3 4.8 18 1,690 18 6.5 6.5 10 9.5 7 4 5 17 9.5 5.5 10 917 10 9.5 7 8.5 9 8.5 5 5.5 , 5 6 5 18 74 119 7.5 7 8 13 8.5 6 f 5.5 4.8 6 9.5 44 152 9.5 5 11 11 9 7 5.5 5.S 6 5.5 9.5 31 7.5 9.5 6 7.5 11 12 8 6.5 5.5 . 6 9 155 24 7 7.5 7 9 9 12 9 6 5.5 4.8 4.2 9.5 24 7 7 5.5 10 7.5 8.5 10 5.5 5 4.8 3.7 7.5 20 7.5 7.5 7 11 7 9.5 11 4.8 4.8 4.S 6.5 7.5 19 6 7.5 6 9.5 9.5 9 12 21 D 4. 5 4.S 7.5 20 6 9 7.5 9.5 10 14 13 5.5 5.5 5 4.5 7.5 19 5 7.5 6.5 10 11 14 14 7 5.5 9.5 5.5 7 19 6.5 8.5 7 7.5 9.5 10 15 6 j 7 4.8 10 28 6 7 8 8 7.5 12 16 6 4.8 6 4.8 10 18 7 5.5 7.5 7.5 11 10 17 6.5 7.5 4.5 3.4 8.5 177 8 6.5 9 7,8 7 11 18 5 7 5.5 4.0 7 53 6.5 7 8 7 9 IE 19 5.5 49 5 4.0 7.5 10 8 7 7,8 8,5 e 10 20 8.5 4.5 .4.5 4.0 11 9.5 8.5 7 5 10 e.e 8 21 7.5 3.7 5.5 829 151 9 8.5 9 7 10 IX 7.6 22 7 3. 9.5 4,840 603 23 8.5 8 8 9.6 9 7.6 23 9 S. 31 1,660 350 9.5 8.5 8 8 9 , 8 24 6.5 3. 262 30 385 9 8.5 8 9 8 8.S 8 25 6 3. 279 48 20 9.5 7.5 7.5 9.5 7 9.5 7 26 6.5 2. 7.5 493 15 9.5 8 8 12 8 8 5.5 27 7.6 2. 6 124 12 10 7 8.5 8 8 9.5 6.5 28 327 5.5 6.5 12 12 10 6.5 9 10 7 S.5 8 29 13 5 5.5 11 - 29 7 7.5 10 6 9 7.5 30 S 5.5 4.8 397 - 9 7.5 7 10 7 8.5 4.7 31 6 - 7 227 - 8.5 - 7 7.5 9.5 Second- Buaof f in Montfc foot-days Maximal MiniBuB Hum acre-feet October...... S41.3 327 4.{J 11*7 7.5 K 1,070 November...... 203.1 49 S.t! 6.77 403 Deoenber...... 748.6 279 4.{> 24.0 1,480 Calendar year 1942 ...... 6,049.2 554 2.(i 16. S 12,000 Jaw *ry...... S, 772.0 4,840 S.4 283 17,400 pon K Febrdarn ...... I f OO f «O 608 7 67.4 3,7*0 > Sk { March...... f ...... 3,350.5 1*600 « *» «. 108 6, 6 SO 486.0 182 S 16.2 gap Say £33. 9 12'ft 5 4.4 7.S5 464 June...... 227.5 5 451 July...... 234 0 11 6 S 82 324 August ...... 280 0 13 6 slos 555 September...... 270 ! 2 14 4. r 9.01 536 Water year 1942-43 ...... 17,260.5 4,840 S.t! 47. S 34,240 baala; Pacific war time. To, convert war time to standard tl»e, subtract 1 hour. TOPANOA CREH3C BASIN 116 Topanga Creek near Topanga Beach, Calif. \ Location.- Water stage recorder, lat. 34°03'50n , long. 118°35'10B , In Boca de Santa Monica Grant, at highway bridge, 2 miles north of Topanga Beach, Log Angeles Omnty. Drainage area.- 17.9 square miles. Records available.- January 1930 to September 1938, October 1939 to September 1943. Average discharge.- 12 years (1930-38, 1939-43), 7.62 second-feet. Extremes.- Maximum discharge during year, 2,200 second-feet Jan. 22 (gage height, 8.60 feet;; minimum, less than 0.1 second-foot many days. 1930-38, 1939-43: mxlmum discharge, 7,960 second-feet Mar. 2, 195®; no flow at times. Co< iperatlpn.- Records furnished by Los Angeles County Flood Control District, through H. E. Hedger, chief engineer, and K. E. Salsoury, acting chief engineer, durlnr the war emergency. Discharge, In second-feet, water year October 1942 to Septenber 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 (e 0.1 0.1 0.2 31 19 4.5 1.6 1.2 0.3 0.1 0.1 (e .1 .1 .2 23 17 4.7 1.6 1.3 .3 .1 .1 3 i e ,j_ .1 .2 17 309 4.2 1.3 1.3 .3 .2 .1 4 (e .1 .1 .1 14 391 4.2 1.5 1.2 .3 .8 .1 5 1 .1 .1 .1 11 119 6.5 1.6 1.2 .3 .2 .1 6 .1 .1 .1 .1 9 er 15 l.S 1.1 .3 fl f1 .1 .1 .1 7 45 6 i.e 1.0 .3 .2 .1 .3 .2 9 ,1 .1 .1 .1 6 35 5 l.S 1.0 '.3 .1 10 ( > } .1 .1 .1 4.9 33 4.7 1.8 .9 .2 .1 11 (eT .1 .1 .1 4.3 30 4.2 l.S .S .3 .2 -.1 12 i .1 .1 4.0 28 3.7 1.8 .8 .3 .2 .1 13 i .1 .1 3.S 26 3.2 l.S .7 .2 .2 .1 14 \i .1 .1 3.6 21 2.9 1.8 .6 .2 .2 .1 15 i (e) i .1 3.5 20 2.9 1.8 .6 .2 .2 .1 16 fi .1 (e) .1 3.5 17 2.9 1.5 .5 .2 i2 .1 17 ,i .1 .1 .1 3.3 14 2.9 1.2 .4 .2 .2 .1 . i .1 .1 .1 2.9 12 2.7 1.0 .4 .2 .2 .1 . i .2 .1 .1 2.9 11 2.7 .7 .4 .2 .2 .1 20 .1 .2 .1 .1 2.9 9.5 2.7 .7 .4 .1 .2 .1 21 .i .1 .1 25 8 9 2.7 .S .4 .1 .2 .1 22 (e ) ,1 .1 5,110 140 9.5 2.4 .S .3 ,1 ,2 ,1 23 j .1 .1 610 109 S.5 2.4 .9 .3 .1 .2 .1 (e j .1 .5 103 141 7.5 2.4 .9 .3 .1 .2 .1 25 * .1 .8 26 51 7 2.1 1.0 .3 .1 .2 .1 26 .1 .1 .3 38 37 7 1.9 1.0 .3 .1 .1 .1 i .1 .2 42 29 7 2.1 1.0 .3 .1 .1 .1 28 . 2 .1 .2 19 23 7 2.1 1.1 .3 .1 .1 .1 .S .1 .1 , 1 .1 .2 14 6.5 a. 2 1.1 .1 .1 . 2 .1 .2 74 _ 6 1.9 1.2 .3 .1 .1 31 .1 - .2 54 - 5 ~ I.E 1 .1 .1 ~ Seoond- R-moff in Month foct-days Maximum Minimum Mean aire-feet October November . 3.1 ,2 _ .10 6.1 December. . 4.5 .8 - .15 8.9 Calendar year 1942 ...... 166.5 11 _ .46 530 2,117.3 66.3 703.6 141 2.9 25.1 1,400 1,370.5 391 5 44.2 114.3 15 1.9 3.83 288 Haw 41.7 1.8 .7 1.35 20.0 1.3 .3 .67 40 July 13.2 .3 .20 AU£Q8t 5.4 .2 .1 .17 11 September. 3.0 .1 .1 .10 6.0 Water year 1942-43 ...... 4,392.7 1,110 - 12.0 8,780 e Dally discharge leaa than 0.1 second-foot. Time baaia; Pacific war time. To convert war time to standard time, subtract 1 hour. 116 MALIHJ CREEK BASIN Mallbu Creek at Crater Camp, near Calabasas, Calif. Location.- Water-stage recorder, lat. 34004'30", long. 118°42 f 10n , In SWi sec. 18, T. 1 S., R, 17 W., a quarter of a mile downstream from Crater Camp and 6 miles southwest of Calabasas. Drainage area.- 103 square miles. Records available.- January 1931 to September 1943. Average discharge.- 12 years, Z7.Z second-feet. Extremes.- Maximum discharge during year, 12,200 second-feet Jan. 22 (gage height, 18.31 1 feet); minimum dally, 0.1 second-foot Oct. 1-4. 1931-43: Ifeximum discharge, that of Jan. 22, 1943; no flow for periods In some years. Cooperation.- Records furnished by Los Angeles County Flood Control D'strict, through H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the war emergency. Discharge, In second-feet, water year October 1942 to SeptemlT 1943 Day Oct. NOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.1 o.e 0.6 0.8 135 69 37 14 7 2.4 1.1 0.9 2 .1 .5 .6 .8 98 76 34 13 7 2.3 1.1 1.0 3 .1 .4 .6 .8 85 1,270 32 13 7 2.3 1.1 1.0 4 .1 .4 .5 .8 69 2,090 32 12 7 2.2 1.1 1.0 5 .£ .4 .5 .8 60 834 32 12 7 2.2 1.1 1.0 6 .£ .4 .5 .8 55 461 40 11 7 2.1 1.2 1.0 7 .2 .4 .5 .8 51 315 37 11 6.5 2.1 1.2 1.0 8 .2 .4 .5 .8 45 231 33 10 6.5 2.0 1.2 1.0 9 .2 .4 .5 .8 41 187 31 10 6.5 2.0 1.2 1.0 10 .; .4 .5 .8 37 154 31 9.5 6 1.9 1.2 1.0 11 .£ .S .5 .e 33 133 29 e.s 6 1.9 1.2 .9 12 .z .5 .6 .8 31 114 28 - s 6 i.e 1.2 .9 13 .2 .5 .6 .e 25 100 26 e 5.5 1.8 1.2 .9 14 .£ .4 .6 .s 25 92 24 s 5.5 1.8 1.2 .8 15 .3 .4 .7 .8 25 86 23 8 5 i.e 1.2 .S 16 .3 .4 .7 .e 24 78 21 8 4.9 i.e 1.2 .8 17 .3 .4 .8 .s 25 74 20 e 4.7 l.S 1.2 .8 18 .3 .4 .7 .s 24 81 19 8 4.5 1.8 1.2 .7 19 .3 .5 .7 .8 23 75 18 8 4.3 1.7 1.1 .7 20 .3 .6 .7 .8 22 70 18 7.5 4.2 1.7 .7 21 .3 .7 .7 35 87 65 17 7.5 4.0 1.7 1.1 .6 22 .3 .7 .6 5,370 283 69 17 7.S 3.8 1.7 1.0 .6 23 .3 .8 .6 4,480 601 61 16 7.5 3.6 1.6 1.0 .6 24 .5 .9 .6 804 796 52 16 7.5 3.4 1.5 1.0 .6 25 .6 .9 .7 265 370 80 16 7.6 3. Z 1.4 .9 .6 26 .8 .8 .7 200 17 B 48 15 7 3.6 1.3 .9 .6 27 .9 .S .7 426 122 46 15 7 2.8 ' 1.2 .9 .6 28 .9 .8 .8 187 105 46 15 7 S.7 1.1 .9 .6 29 .9 .7 .8 102 _ 43 14 7 2.5 1.1 .9 .3 30 .e .7 .8 107 _ 41 14 7 3.4 1.1 .9 .6 31 .7 - .8 170 - 39 - 7 1.1 1 .9 Seoond- Runoff In Month foot-daya Maximum Hininutt Mean acre-feet October...... 11. a 0.9 0.1 0.31 November...... 16.7 .9 .4 .$< 33 December...... :...... 19.7 .8 .6 .64 39 Calendar year 1942 ...... 595.1 11 .1 1.6! 1,180 Janu *fj...... 18,138.0 5,370 .8 391 24,060 Febr 3,415 786 6,770 March ... 39 232. ' '780 2 .090 14,180 April...... 40 14 £4.0 1,430 May...... :...... 275.0 14 7 6 S*? 545 June...... 149.5 7 6.4 4)98 297 July...... 54 S 2.4 1.1 1.76 108 August...... 33 ,*7 1.2 8 " 4..Wi nfi Oftry f September. ../...... 23.9 1.0 .8 .80 47 ftotsr jwaf 1942^43 ...... 63,999.9 8,370 .1 i 65.8 . 47,600 Pacifle w»r timo. To convert w»r time to standard fciae, jiubtwofc 1 hour. SANTA CLARA RIVER BASIN 117 Santa Clara River near Saugus, Calif. Location.- Water-stage recorder, lat. 34°25'30n , long. 118°S5'10'1 , in San Francisco Grant, at bridge on U. S. Highway 99, 3 miles west of Saugus, Los Angeles County. Altitude of gage, about 1,030 feet. Drainage area.- 355 square miles. Records available.- October 1929 to September 1943. Average discharge^- 14 years, 16.5 second-feet. r Extremes.- Maximum discharge during year, 15,000 second-feet Jan. 23 (gage height, 12.5 feet), by slope-area method; minimum, 1.0 second-foot Oct. 5, 6. 1929-43: J&ximum discharge, 24,000 second-feet Ifer. 2, 1938; no flow at time.-? in each year 1935-39. Cooperation.- Records furnished by Los Angeles County Flood Control District, through H. E. Hedger, chief engineer, and M. E. Salsbufy, acting chief engineer during the war emergency. Discharge, in second-feet, water year October 1942 to September 1945 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 1.6 2.5 4.5 6 46 101 53 21 6.5 5 3.S 3.0 2 1.6 2.3 4.S 5.5 23 98 51 20 6.5 5 6 3.0 3 1.6 2.8 4.8 5 21 1,570 51 16 6.5 4.6 3.6 3.0 4 1.6 2.8 4.8 5 20 2,360 37 16 6.5 S.5 3.4 3.0 5 1.4 2.8 5 8.5 20 1,140 30 15 6.5 5 3.4 2.S f 4 6 1.4 2.8 4.8 25 * 19 830 19 12 6.5 5 3.4 2.6 7 1.6 2.8 4.8 27 22 20 12 10 6.5 4.6 2.6 2.6 8 1.6 3.0 4.5 30 22 491 6.5 13 6.5 4.6 2.8 3.0 9 1.6 2.8 4.0 31 16 363 6 12 7 4.2 3.4 2.6 10 1.8 2.8 2S 35 16 300 21 13 7 4.2 4.6 2.4 11 1.8 3.0 59 36 15 240 21 12 7 4.2 3.8 8.4 12 1.8 3.0 14 36 13 294 19 11 S 4.2 4.2 2.4 13 1.6 3.0 6.5 36 15 232 27 10 8.5 3.4 4.2 2.2 14 1.6 2.8 6.5 37 20 206 23 9.5 8.5 2.6 3.4 2.0 15 1.8 3.0 6.5 38 15 156 21 13 8.5 3.0 3.4 2.0 16 1.8 2.8 6 40 16 136 27 8.5 9.5 2.6 3.8 2.2 1.6 2.5 5.5 38 15 136 25 6.5 S.5 2.8 3.S 2.2 18 1.8 2.8 5 37 16 136 33 6 8.5 3.4 4.2 2.4 19 1.6 2.8 5 24 20 125 33 4.6 8.5 4.2 4.2 2.4 20 1.8 2.5 5 3.8 21 125 27 4.2 8 4.2 4.6 2.2 21 1.6 2.5 5.5 6.5 32 105 27 3.4 8 4.2 4.6 2.2 22 1.8 3.0 5.5 2,620 295 125 27 5 S 3.8 4.6 2.4 23 2.0 3.2 6 5,420 190 83 27 6 7 3.S 4.2 2.6 24 2.2 3.2 6.5 214 619 73 26 6.5 6 4.2 3.0 2.8 25 2.2 3.5 6 52 110 76 27 6.5 6 4.2 3.4 2.6 26 2.5 3.2 5 36 94 91 29 7 5.5 4.6 3.4 2.8 27 2.5 3.5 5 50 120 94 25 7 4.2 4.2 3.0 2.8 28 3.8 3.8 5.5 26 110 101 23 7 5 3.8 2.8 2.6 29 2.8 4.2 5.5 21 - 76 22 6.5 5.5 3.4 2.S 2.2 30 2.5 4.5 5.5 83 _ 66 22 6.5 5 3.4 2.8 2.0 31 2.2 - 5 160 - 59 6.5 3.8 3.4 Second- Runoff in Month foot-days Maximum Minimum Mean acre-feet Octo ber...... 59.1 3.8 1. i 1.91 117 Neve mber...... 90.1 4.5 2. 2 3.00 179 Deoember...... 250.0 59 4. 3 8.06 496 Calendar year 194E ...... 11,376.0 167 . 5 31.2 22,550 Janu ary...... 9,192.3 5,420 3. B 297 18,230 Februarv ...... 619 13 70.0 March...... 10^608 2,360 59 342 2l)o40 April ...... 797 £ 53 6 26* 6 I t Oovcon May...... soiis 21 3* 597 June ...... 9 5 4 i g 09 416 July 12s!? s'.5 2! 3 4^05 249 Augu st...... 114.8 6 2. 3 3.70 228 September...... 75.4 3.0 2. 3 2.51 150 Water year 1942-43 ...... 23, 784. E 5,420 1. i 65.2 47.170 Time basis! Pacific war time. To convert war time to stnndni-d tlmn, 118 SANTA CLARA RIVER BASIN Piru Creek near Pirn, Calif. Location.- Water-stage recorder and broad-crested weir control, lat. 34°25'30", long. 118"45 t451', in southern part of Temescal Grant, 1? miles northeaft of Piru, Ventura County, and 2 miles upstream from mouth. Altitude of gage, about 780 feet. Drainage area.- 432 square miles. Records available.- October 1911 to September 1913 and October £934 to September 1943. October 1927 to September 1934, at site at Piru, li miles downstream. Average discharge.- 16 years (1927-43), 67.4 second-feet. Extremes.- Maximum discharge during year, 16,000 second-feet Jan. 2£. (gage height, 12.27 feet;, by slope-area method; minimum, 5 second-feet Oct. 8. 1911-13, 1927-43: Ifexlmum discharge, 35,600 second-feet Mar. 2, 1938, by slope- area method; no flow during parts of some years. Remarks.- Records fair below 100 second-feet and between 1,000 and 5,000 second-feet; others poor. Doheny ditch diverts above station, and Piru Mater Co.'s ditch diverts below. Discharge, in second-feet, water year October 1948 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 5.5 10 13 16 d4B5 365 176 82 36 19 12 9.5 6 9.5 13 17 d35C 365 176 79 36 20 11 9.5 6 9.5 ' 14 17 d28C 1,860 176 78 35 » 20 11 9.5 6 9.5 14 16 d23C 3,730 174 80 36 19 9.5 9 10 14 16 d200 2,120 176 76 36 19 10 9 6 6 10 14 16 dl80 f 1,180 180 72 36 18 9.5 9 6 10 14 16 d!65 832 174 69 36 16 9 9 5.5 10 13 16 d!55 715 163 64 35 16 9.5 8.5 5.5 9.6 14 16 d!50 614 156 62 35 16 10 9 6 9.5 14 16 d!45 569 150 61 34 16 9.5 9.5 11 7 9.5 14 16 d!40 460 147 60 36 16 f9.5 9.5 6 9.5 14 16 d!35 400 141 60 39 16 f9.5 10 13 7*5 9.5 14 16 dl30 395 125 59 40 17 10 10 14 7.5 9.5 14 15 a!25 365 117 57 36 16 10 11 7 10 14 15 a!20 365 115 56 38 17 11 ll 16 7 10 15 15 allO 333 120 56 29 17 11 10 17 7 11 16 16 alOO a312 112 55 86 17 10 10 18 7 12 17 15 90 292 106 54 86 17 10 10 7 13 17 14 74 859 106 53 84 16 11 11 20 7 13 17 13 70 287 106 51 84 16 10 10 21 6.5 12 17 63 385 230 102 50 S3 15 10 10 7 17 3,510 1,060 SCO 97 48 22 f!5 10 10 7 11 17 6,100 1,010 206 94 46 22 14 10 9.5 24 7.5 12 17 al,800 1/470 191 94 46 22 13 10 6 6.5 12 17 al,000 905 160 93 44 22 12 10 7.5 26 9 IS 17 a700 618 173 90 44 88 11 9.5 7 27 9 13 18 a750 479 173 90 48 21 11 9.5 7.5 28 14 13 17 a375 410 173 89 41 81 11 9 7.5 29 17 13 17 afiSO _ 178 86 39 . SO 11 9 7.5 30 18 13 17 a335 _ 180 36 37 19 11 . 9 7 31 11 - 17 d710 - 178 - 36 13 9.5 Second- Runoff in Month foot-days Maxima Minimum Mean acre-feet December...... 477 18 13 15.4 946 Calendar year 1948 ...... 11,673.5 250 5 38.5 23t550 Janu 15,906 6,100 13 513 31,550 Febr 9,711 1,470 70 . 347 19,260 h...... Marc ^Zo May...... July...... Augu 306.5 12 9 9.95 612 September...... 875.5 11 7 9.16 546 Rater year 1948-43 ...... 51,384.5 .6,100 s.e 141 101.900 Paak, dtflejiarae.- jaifu a? Ult40 p.m. 1 tfi.noo nnc.-ft.r i»«>>. sfa nr\ n m l > r>nn «»r _<»<- t w«v, oa [5:30 a.m.) 2,000 we.-ft.} Bar. 4 (8 a.m.) 4,880 sec.-ft. a Ho g*ge-ijetght record; discharge computed on basis of discharge neasuresmts of Jan. 27, 88, 29 30 and records for Seeps Creek near Fillraore. d Doubtful gage-height record; discharge computed on basis of discharge »er>surenents of Fob'. 4, 8 and records for Sespe Creek near Flllarore. . f Computed on basis of partly estimated gage-height record. Time basis; Pacific war tiae. To convert war time to standard time, subtract 1 hour. SANTA CLARA RIVER BASIN 119 Hopper Creek near Plru, Calif. Location.- Water-stage recorder, lat. 34°23'55It , long. 118°49'40", on south line of NWi sec. 25, T. 4 N., R. 19 W. f at highway bridge 2 miles southwest of Plru. Drainage area.- 23.0 square miles. Records available.- October 1930 to September 1932. Octooer 1933 to September 193R, October 1937 to September 1943. Average dlscharge.- 11 years, 7.46 second-feet. Extremes.- Maximum discharge during year. 4,200 second-feet Jan. 22: no flow for several months. 1930-32, 1933-36, 1937-43: Maximum discharge, 8,UOO second-feet mr. 2, 1938: no flow for several months during each year: Cooperation.- Records furnished by Ventura County Water Survey. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0 0.5 28 26 13 5.5 2.1 0.5 0 2 0 .5 IS 25 13 5 2.2 .5 0 3 0 .5 13 281 13 4.6 2.2 .6 4 0 .5 13 601 13 5 2.1 .6 5 0 , .5 12 160 14 5.5 1.9 .6 > eO.Ol 6 0 .6 11 86 16 5.5 1.8 .6 7 0 .6 11 55 13 5 1.7 .5 8 .0 .6 10 48 12 4.6 1.6 .5 9 0 .6 9 47 12 4.3 1.6 .5 10 0 .7 8 44 11 4.0 1.6 .5 11 0 ,7 7.5 37 10 3.7 1.6 .5 0 12 0 , .7 7.5 34 10 4.0 1.7 .5 0 13 0 .7 7.5 31 10 4.3 1.6 .5 0 14 0 .6 7.5 28 10 4.0 1.4 .5 0 15 .6 7 26 10 4.0 1.1 .6 I e.04 0 .6 7 16 24 9.5 4.0 .9 .6 e.O4 17 0 .7 7 25 9 4.0 .8 .6 0 18 0 .8 7 29 8.5 4.0 .7 .5 19 0 .8 6.5 24 8.5 4.0 .7 .4 [ e.Ol 20 0 .8 6.5 22 8.5 4.3 .6 .4 21 o0 120 12 21 8 3.9 .6 .4 O 22 3^00 179 20 7.5 3.5 .6 .4 0 23 0 861 182 19 7.5 3.0 .6 .3 0 24 2.4 98 177 18 7 2.7 .6 .1 0 25 5.5 32 45 17 6.5 2.2 .5 0 0 26 1.2 44 38 16 6.5 2.3 .5 0 0 27 .6 53 32 15 6.5 2.4 .5 0 0 28 .6 15 29 15 6 2.3 .4 0 29 .6 IS 14 6 2.4 .5 0 , e.Ol 30 .6 34 14 5.5 2.3 .5 0 31 .6 72 13 2.1 0 Month £££. » Minimum Meanu.»n aore-feetR'loff in Octc tier...... :...... 0 0 0 0 0 Nove her...... 0 0 0 0 0 Deoenber...... 12.1 5.5 0 .39 24 Calendar year 1942 366.6 39 0 1.00 727 Janu ary . . ... 2,853.6 1,500 .5 92.1 5,660 Febr 896.0 182 6.5 32.1 1,780 Hare 1,833 601 13 59.1 3,640 ' Apri 1...... 291.0 16 5.5 9.70 577 May. 118.4 5.5 2.1 3.82 235 June 35. 2 2.2 .4 1.17 70 July 11.7 .6 0 .38 S3 Augu St...... 1.16 0 .037 2.3 September...... 19 0 .006 .4 Hater year 1942-43 ...... 6,054.35 1,500 0 16.6 12.010 e Dally discharge less than O.I second-foe t. Time baslss Pacific war time. To convert war time to standard time, subtract 1 hour. 130 SANTA CLARA RIVIR BASIN Sespe Creek near Flllmore, Calif. Location.- Water-stage recorder, lat. 34°26'55", long. 118055'35B , in NEi sec. 12, T. 4 N., R. 20 W., O.I mile downstream from Little Sespe Creek ano>3| miles north of Flll more. Altitude of gage, about 590 feet. Drainage area.- 254 square miles. Records avallable.- November 1934 to September 1943. September 1911 to September 1913 and October 1927 to November 1934 at site at Sespe, 3 miles downstream.* Average discharge.- 16 years (1927-43), 116 second-feet. Extremes.- Maximum discharge during year, 44,000 second-feet Jan. 23 (gage height, 19.10 feet;, by slope-area method; minimum daily, 0.3 second-foot Oct. 1-7, 21-24. 1927-43: Maximum discharge, 56,000 second-feet Mar. 2, 1938, by slope-area method; no flow at times In most years. Remarks.- Records good. Fillmore Irrigation Co.'s canal (see p. 121} diverts 1 mile above station. Discharge, in second-feet, water year October 1942 tc September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. S«pt. 1 0.2 2.8 2.6 12 714 556 191 85 36 11 2.1 0.5 2 .2 1.5 1.0 12 498 485 182 82 3S 11 1.9 .5 3 .2 .5 1.2 11 362 2,940 174 80 3S 13 2.1 .5 4 .2 1.3 1.4 11 302 6,460 168 82 38 14 2.3 .5 5 .2 .3 1.7 12 264 3,850 174 82 38 14 2.7 .5 6 .2 .3 l.B 12 238 1,800 202 79 36 12 2.5 'I 7 .2 .3 1.9 12 219 1,270 177 74 33 ' 11 2.7 .6 8 .3 .3 2.0 10 214 1,020 166 69 33 10 2.5 .6 9 .3 .4 2.3 8 193 960 161 69 31 9 2.3 .6 10 .3 .3 2.4 8 171 885 156 69 31 8.5 2.1 .6 11 .4 .3 2.4 .5 159 734 154 68 30 8.5 1.4 .6 12 .5 .3 2.B .5 149 638 148 63 31 S.5 .9 .6 13 .4 .3 2.3 .5 140 567 144 61 ', 3132 8.5 .8 .6 14 .3 .3 2.6 .5 135 517 141 59 8.5 .7 .6 15 .3 .4 2.2 1E9 470 146 58 29 8 .6 .6 16 .3 .4 2.0 .5 'ISO125 4fil 148 55 26 8 .6 .6 17 .3 .4 2.2 " .5 402 134 53 25 8.5 .7 .6 18 .3 1.2 2.5 .5 114 407 }S5 50 S3 8.5 .7 .5 19 .3 4.0 2.6 108 362 121 49 S3 7.5 .9 .5 20 .3 3.4 2.6 " .5 106 333 11» 48 2S 6.5 1.0 .4 21 .2 3.5 2.8 181 496 313 115 44 SI 6 .9 .4 22 .2 4.0 3.4 9,890 3,960 3O1 ill 48 20 6 .9 .4 23 .2 3.S 6 .1,070 2,810 279 109 41 18 5 .8 .4 24 .2 4.1 11 2,340 3,780 264 105 40 18 4.3 .7 .4 25 .3 4.3 16 1,110 1,620 250 103 3S 18 3.5 .6 .4 26 .3 4.1 13 887 1,040 240 101 38 17 2.9 .6 .4 27 .3 4.1 12 £0,040 774 230 9S 38 16 2.5 .5 .4 28 3.0 4.3 12 f546 626 224 94 38 15 2.7 .5 .4 29 5.5 4.3 12 f419 - 218 92 36 14 2.3 .5 .4 30 3.8 4.3 12 590 - 208 90 36 12 2.3 .5 .4 31 3.6 - 12 1,180 - 199 - 35 - 2.1 .5 Second- Runoff in Month foot-days Maximum Minimum Bean acre-feet October...... 23*3 5.5 2 0.75 46 "November ...... 59.6 4.3 li'5 1.99 119 December...... 154.7 16 D 4.99 307 Calendar year 194 2 ...... 12,940.8 592 2 , ,35.5 25,670 Janu ary...... 29,435.0 ^ 11,070 7 950 58,380 Febrnarv ...... 19,536 3,960 106 699 38,810 March...... 27 203 6,460 199 53,960 April ...... 4 149 £02 90 138 8,230 May...... 1^759 85 35 56^7 3,490 June...... 793 38 12 26.4 1,570 July ' - 234.1 14 2.:L 7.55 464 Augu St...... 38.5 2.7 .( 1.24 76 Septamhar. . . . 15.0 6 ,t1 .50 30 Water year 1942-43 ...... 83,430.4 11,070 .;I 229 165,500 Peak discharge.- Jan. £3 (12:15 a.m.) 44,000 sec. -ft.,; Jan. 31 (12:30 p.m.) 1,560 seo.-ft.j Feb. 2E (8:30 p.m.) 7,500 see.-ft.; Feb. 24 (3 a.m.) 5,910 sec.-ft.; Har. 3 (11 p.m.) 9,330 sec.-ft. f Computed on basis of partly estimated gage-height record. Time basia; Pacific war time. To convert war time to s'taadard time, subtract 1 hour. s ,. SANTA CLARA RIVER BASIN 181 Fillmore Irrigation Co.'s canal near Fillmore, Calif. ation.- Staff gage, lat, 34°27'15n , long. 118°55'35n , in SEJ sec. I, T. 4 K., R. 20 d., 4 miles north-northwest of Fillmore. Altitude of gage, about §0 feet. Records ayaliable.- October 1927 to September 1932 (monthly figures only), October 1935 to September 1939 {annual figures only), October 1939 to March 1940 (monthly figures only), April' 1940 to September 1943. Average discharge.- 13 years (1927-32, 1935-43), 5.62 second-feet. Extremes.- Maximum daily discharge during year, 15 second-feet July 1-3; no flow on many days. 1940-43: Maximum daily discharge, 16 second-feet May 25, 27, 28, 30, 1940, Oct. 4, 1941; no flow July 29, 1941, May 21, 22, 1942, and many days in 1943. Remarks.- Records fair. Staff gage read once daily. Canal diverts water from Srspe creek in SEi sec. 1, T. 4 N., R. 20 W., 1 mile above, station on Sespe Creek near Fill- more . Cooperation.- Qage-height record furnished by Fillmore Irrigation Co. Discharge, is second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 6.5 6 9 2.1 1.7 0.8 1.5 2.5 11 15 13 11 7 8 9 2.1 1.1 .8 1.5 2.5 11 15 13 11 8 9 s.s .9 .8 1.5 1.4 11 15 12 11 9 .6 .8 1.5 1.4 11 13 12 11 6.5 8 9 2.2 .6 .8 1.5 3.6 11 12 12 11 6 6.5 8 9 2.2 .4 .8 1.7 3.3 11 13 12 11 8 9.5 .4 .8 1.5 6.5 11 14 12 11 3.8 .8 1.3 10 11 13 12 6 B 9.5 5.5 0 .6 1.1 10 11 11 12 11 8.5 9.5 5 0 .5 1.1 11 10 11 12 10 11 6.5 8.5 9.5 5 0 .5 1.1 12 11 11 13 10 8.5 9.5 5.5 0 .5 .9 11 11 12 13 6.5 8.5 9.5 5.5 0 .5 .7 12 11 12 13 10 6.5 8.5 9.5 5.5 0 0 .7 12 10 12 13 10 9.5 5.5 0 0 .6 12 10 13 10 16 6 9 9.5 5.5 .6 0 .4 12 10 12 IS 10 8 9.5 5.5 .6 0 .4 12 10 12 32 6 8 9.5 5.5 .6 1.9 1.1 13 10 12 6 9.5 5.5 .6 .8 .8 13 10 12 11 9.5 9.5 5.5 0 .8 .6 13 10 12 IE 9 21 6 7 9.5 5.5 0 .2 1.1 13 10 ' 6 7 7.5 3.5 0 .4 1.1 11 12 12 7 3.5 1.8 0 .9 .9 12 12 12 18 8.5 7 2.4 0 i 0 1.1 .9 12 12 13 18 6 7 2.4 0 0 1.1 .9 14 12 13 1*? 8.5 26 6 2.6 0 0 1.1 .9 13 12 13 12 9 1.5 .9 .9 2.6 13 12 13 9.5 7 2.4 .9 1.9 .8 3.1 12 13 12 12 9.5 2.4 .8 - .6 3.-1 12 13 13 12 9.5 2.1 1.1 - .4 2.5 12 14 13 11 9.5 - 1.7 - 0 - 12 13 11 Second- Runoff in Month foot-days Maximum Minimum Mean acre-feet 387 g V 72 4*59 December ...... '...... 226.5 9.5 2.]L 7.31 449 Calendar year 1942 ...... 2,321.8 14 0 6.36 4,600 25 1 9 t 1 £9 May...... September...... 297.0 11 8* ' -> 9.90 589 Water year 1942-43 ...... 2,531.7 15 0 6.94 5,020 Time basis; Pacific war time. To convert war-time to standard time, subtract 1 hour. 122 SANTA CLARA RIVES BASIN Santa Paula Creek near Santa Paula, Calif. Location.- Water-stage recorder, lat. 34023'40n , long. 119°04'35n , near east boundary of Ex Mission San Buenaventura Grant, 50 feet upstream from Santa Paula Water Works diversion dam and 3 miles north of Santa Paula, Ventura County. Altitude of'gage, about 650 feet. Drainage area.- 39.8 square miles. Records available.- October 1927 to September 1943. April 1912 to September 1913 at site 2* miles upstream. October 1927 to February 1931 at site 500 feet downstream, below diversion of Santa Paula Water Works. Average discharge.- 16 years (1927-43), 23.1 second-feet. Extremes.- Ifeximum discharge during year, 10,000 second-feet Jan. 22 (gage height, 9.30 feet}, from rating curve extended above 2,000 second-feet on basis of slope-area determinations at 9.30 and 10.56 feet; minimum, 0.8 second-foot Oct. 5. 1927-43: Maximum discharge, 13,500 second-feet Mar. 2, 1938 (gage height, 10.56 feet), by slope-area method; minimum dally, 0.1 secflnd-foot Aug. 19-21, 26-29, 1942. Remarks.- Records good except those for periods of doubtful or no gage-height record, which are fair. About 350 acre-feet diverted above station for irrigation during year; water for municipal use diverted below station. Cooperation.- Santa Paula Water Works maintained the control and furnished record of water diverted. Discharge, in second-feet, water year October 1942 to Septembe- 1943 Day Oct. Nov. Deo. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 2.3 2.5 2.3 3.2 1S7 145 62 27 17 10 8.5 6.5 2 2.3 2.5 2.3 3.2 150 136 60 29 18 9.5 8 6.5 3 2.5 2.8 2.1 3.2 126 405 59 29 17 9.5 8 d6.5 4 2.5 2.3 2.2 3.2 100 1,180 59 29 17 11 8 d6.5 5 1.0 2.1 2.3 3.2 SI 719 64 28 16 11 7.5 d6.5 6 1.0 2.3 2.8 3.4 74 408 62 26 15 11 7.5 d6.5 7 1.2 2.5 2.S 3.0 69 325 56 26 14 11 7.5 d6.5 8 1.3 2.7 2.S 2.7 71 281 54 26 14 10 7 d6.5 9 1.4 2.3 2.8 2.S 67 245 52 25 14 10 6.5 6.5 10 1.4 2.2 2.8 3.0 65 222 50 24 14 9.5 6.5 6 11 2.2 2.1 2.8 3.0 59 201 47 24 14 9.5 6 d6 12 1.8 2.1 2.8 3.0 54 184 46 23 JL4 10 6 d6 13 1.3 1.9 3.0 3.2 52 172 44 22 14 11 6 d6 14 1.4 2.1 2.8 3.0 49 159 42 21 15 10 6 d6 15 1.3 2.7 2.5 2.8 46 150 41 20 13 10 6 ,d6 16 1.2 2.1 2.5 2.5 41 142 40 20 12 10 5.5 6 17 1.6 1.8 2.8 2.5 40 142 40 20 12 10 5 ' 6 18 Z.I 2.3 3.4 211 37 136 37 20 12 10 5.5 5.5 19 1.8 2.5 3.4 1.6 35 123 36 20 12 10 5 5.5 20 1.8 2.5 3.4 1.6 35 114 35 19 12 9 5:5 5.5 '2.7 21 1.6 3.4 112 70 104 35 19 11 3.5 5.5 5.54.4' 22 1.6 2.7 2.5 2,500 343 101 34 18' 11 8 6 23 1.6 2.2 l.B 2,260 327 94 33 18 11 8 6.5 4.0 24 1.8 2.1 3.6 8380 655 85 32 18 11 8 7 4.4 25 2.1 2.1 6 a!70 354 79 32 17 10 8.5 7.5 4.7 26 ' 2.3 2.1 3.6 aSOO 241 74 32 17 10 B.5 7 5.5 27 2.3 2.3 3.4 218 190 69 30 IB 10 8.5 7 6 28 3.9 2.7 3.4 136 153 67 30 17 10 S t 6 29 3.4 2.7 3.2 109 - 67 £9 18 10 S 7.5 6 30 2.8 2.7 3.2 161 - 65 28 IB 10 8 7.5 4.6 31 2.7 - 3.2 248 - 64 - 17 - 8 7 " Second- Runoff in v Month foot-daya Maximum Minimum Mean acre-feet October...... 59.5 3.9 1.0 1.92 116 November...... 70.6 2.8 1.8 2.35 140 December...... 91.9 6 1.8 2.96 182 Calendar year 1942 ...... » ...... 2,513.7 63 .1 6.89 4,990 January...... 6,550.2 2,500 1.6 211 12,990 February...... 3, 771 655 35 'SOB135 7,480 Maroh...... 6,45S 1,180 64 12,810 April ...... 1,301 64 26 45.4 2,580 May...... 673 20 17 81.7 1,330 June ...... '...... 390 18 10 13.0 774 July...... 292.0 11 S ' 9.42 579 August ...... 207.0 8.5 , 5 6.68 411 September ...... 174.4 6.5 4.0 5.81 346 Wster year 1942-43 ...... S0.038.J5 2,500' 1.0 54.9 39,740 Peak dlaoharge.- Jan. 22 (11 p.m.) 10,000 sec..-ft.; Feb. 24 (2:30 a.m.) 1,300 aee.-ft. j 1 Mar. 4 (5j30 p.m.) 1,840 aee.-ft. a So gage-height record; discharge computed on basia of .records for Coyote, Hrtillja, and Seape Creeks. d DouDtful gage-height record} discharge Interpolated. Time baais; Pacific war tine. 1o convert war time to standard time, subtract 1 hour. VENTURA Rival BASIN 1E3 Matlllja Cr&ek at Matlllja, Calif. t Location.- Mater-stage recorder, lat. 34°28'50", long. 119°18'06", In SWi sec. g8, T. 5 N., :R. 23 W., 0,1 mile southeast of Matlllja. Altitude of gage, about 950 feet. Drainage area. 55 SQuare miles, Records available.- October 1927 to September 1943. Average discharge.- 16 years, 39.0 second-feet. Extremes.- Maximum discharge during year, 15,000 second-feet Jan. 28 Cgage height, 11.90 feat), from rating curve extended above 4,000 second-feet; mlnlnrum, 2.1 second-feet Oct. 21 {gage height, 2.17 feet). 1927-43: tfeximum discharge, 15,900 second-feet f&r. 2, 1938, by slopQ-area method; minimum, 0.4 second-foot Oct. 28, 1930. Remarks.- Records good below 100 second-feet and fair above. No diversion abcve station. Cooperation.- Nine discharge measurements furnished by Ventura County Water Survey. Discharge, in second-feet, water year October 1942 to September 1943 Das Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 3.7 4.0 4.0 6 158 178 90 43 87 16 9 7.6 2 3.7 3.7 4.0 6 139 148 88 43 27 15 9 7.5 3 4.0 4.0 4.3 6 130 1,010 83 43 86 15 9 7.6 4 3.7 4.3 4.6 6 122 1,480 83 43 86 14 9 7 S 3.7 4.3 5 6 119 954 86 43 86 14 9 7 6 3.8 4.3 4.6 6 103 703 83 41 86 14 9 7 7 S.4 4.3 4.6 6 x 93 632 77 41 84 14 9 7 8 3.7 4.3 5 6 88 460 75 40 83 14 9 6.5 9 4.0 4.3- 5 6 77 440 72 39 22 14 9 6.5 10 4.0 4.3 6 5.5 75 405 70 36 22 14 9 6 "4.0 11 4.0 4.6 6.5 78 366 66 3S 88 14 9 6 12 4.0 4.0 4.6 6.6 68 316 64 38 22 14 9 6 13 3.7 4.0 4.6 6.5 64 880 60 38 22 14 8.5 5.6 14 3.7 4.0 4.3 6.6 62 24S 60 38 81 14 8.5 6.5 15 3.4 4.3 4.3 6 60 885 60 39 80 14 8.6 5.6 16 3.8 4.3 . 4.3 5 58 198 58 39 19 14 8 5.5 17 3.0 4.6 4.3 6.5 57 188 67 39 18 13 8 5.6 18 8,9 6.5 4.6 6 55 195 55 38 18 16 8 5.6 19 8.7 5.5 4.6 6.5 51 188 53 38 18 13 8 5.6 20 8.6 6.5 5. 5.5 49 174 53 36 17 flS 8 6.5 21 8.3 6.5 5 138 202 164 63 36 17 f!2 8 6 22 8.5 5.5 5.6 3,380 1,240 158 61 35 16 ' 18 8 6 23 8.7 5 6.5 3,080 891 142 51 35 16 12 8 6 24 8.9 4.6 7.6 698 981 133 49 34 16 18 8 6.6 25 3.0 4.6 7.5 aS76 491 188 49 34 15 11 S 6.6 26 3,8 4.6 6.6 a860 366 119 49 34 16 10 8 6.6 27 3.2 5 6 286 276 106 4S 32 16 9 7.5 5.6 28 5.S 5 6 210 229 103 46 31 15 9 7.5 5.5 29 6*6 4.6 6 174 .. 100 44 30 16 9 7.6 6.6 30 4.3 6 192 _ 96 43 28 15 9 7.5 5.5 31 4.3 - 6 170 - 93 - 27 - 9 7.6 - Second- Runoff in Month foe t-days Maximum Minimum Mean ao re-feet October...... 110.8 6 2.3 3.6V 220 November...... 136.8 5.5 3.7 4.64 270 December ...... 158. S 7.6 4.0 5. If 316 Calendar year 1942 4,991.5 151 2.3 13.7 9,890 January ...... 8,910,0 3,320 5 887 17,670 February...... 6,360 1,240 49 887 12,610 March...... 9,954 1,420 93 321 19,740 April ...... 1,876 90 43 68.6 3,780 may.Uav ...... 1,151 43 27 37-1 2,280 June ...... 602 27 15 20.1 1,190 July...... 392 15 9 12.6 778 August ...... 259.0 9 7.5 8.3f 514 September...... 179.0 7.5 5 5.97 356 Water year 1942-43 ...... 30, 088.8 f 3,320 2.3 82.4 59,660 Peak discharge.- Jan. 28 (10:30 p.m.) 15.000 sec. -ft.: Feb. 22 (10 a.m.) 2.050 sec. -ft.; Mar. 3 a Ho gage-height record; discharge computed on basis cf records for Ventura Elver nea Ventura and Coyote Creek near Ventura. f Computed on basis of partly estimated gage-height record. Time basis; Pacific war time. To convert war time to standard tine, subtract 1 hour. 124 VEHTURA RIVER BASIN Ventura River near ventura, Calif. Location.- Water-stage recorder, lat. 34020'55", long. 119°18'20", in southeast corner of Santa Ana Grant, In Foster Memorial Park, at abutment of former highway bridge 150 feet downstream from present highway bridge, 500 feet downstream from Coyote Creek, 3,000 feet downstream from Ventura diversion dam, and 5 miles north of Ventura, Ventura County. Altitude of gage, about 210 feet. Drainage area.- 187 square miles. Records available.- September 1911 to January 1914, October 1929 to September 1943. Average discharge.- 16 years (1911-13, 1929-43), 81.7 second-feet. Extremes.- mxlmum discharge during year 35,000 second-feet Jan. 22 (gfge height, 14.58 reet) oy relation between mean velocity and mean depth: minimum daily. 0.2 second- foot Oct. 30, 31, Nov. 17, 18. 1911-13, 1929-43: Maximum discharge, 39,200 second-feet Mar. 2, 1938 (gage height, 19.2 feet}, by slope-area and contracted-opening methods: no flow for periods each year except 1937-39, 1942, 1943. Remarks.- Records good except those after June 15, those for periods of no gage-height record, or those between 1,000 and 10,000 second-feet, which are fair, and those above 10,000 second-feet which are poor. Water diverted from Ventura River and tributaries for irrigation and municipal supply. Cooperation.- Nine discharge measurements furnished by Ventura County V'ater Survey. Discharge, in second-feet, water year October 1942 to Septembe- 1945 Das Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.9 0.5 1.9 1.6 388 374 186 B90 42 a22 a!2 8.5 2 .9 .3 1.9 1.6 324 324 176 a 88 44 22 a!2 8.5 3 1.1 .3 1.6 1.6 283 1,730 171 a87 44 21 a!2 8.5 4 1.4 .9 1.6 1.9 250 5,260 166 86 44 a20 a!2 8.5 5 1,4 1,9 1.6 1.9 216 2,880 181 83 44 a20 a!2 9 6 2.2 1.9 1.6 1.9 199 1,560 186 80 42 a20 all 9 7 2.2 1.9 1.9 1.9 183 1,160 171 74 40 a!9 all S.5 8 1.9 1.9 1.9 1.6 178 970 161 71 40 a!9 all 8.5 9 1.6 1.9 1.9 1.4 162 875 157 71 40 a!9 all 8 10 1.1 1.6 1.9 1.1 144 790 154 68 40 a!8 all 7.5 11 1.6 1.6 1.9 1.6 139 685 148 66 40 al8 11 7.5 12 1.6 1.6 1.9 1.6 127 600 139 61 44 IS 11 7 13 1.6 1.6 1.9 1.4 123 550 139 63 58 18 11 7 14 1.9 1.6 1.9 1.4 114 513 139 65 42 18 tl 7 15 .9 1.6 1.9 1.6 110 465 139 56 30 19 11 ( 7 16 .6 .7 1.6 1.4 103 431 136 52 *30 19 12 6.5 17 .4 .2 1.4 1,4 100 431 127 54 aS9 17 11 6.5 18 .6 .2 1.4 1,1 94 475 123 54 a29 18 11 6 19 .6 .9 4..1 1.1 87 384 ISO 52 a28 18 11 6.5 20 .7 1.9 1.4 1.1 87 339 a!16 50 «28 18 all 6 21 .7 1.9 1.6 274 424 317 a!13 44 a27 18 all 5.5 22 .7 1.4 1.6 9,030 2,090 309 al09 44 a27 17 alO 5 23 .4 1.1 1.9 QQ400 1,340 284 a!05 44 a26 IS alO 5 24 .5 1.4 2.2 fl,520 1,990 258 f!02 44 a25 14 a9.5 5 25 .3 1.4 1.9 719 916 246 alOO 42 a25 14 9.5 5 26 .3 1.6 1.6 700 648 234 a98 44 a24 14 9 5 27 .3 1.9 1.6 75O 520 234 a96 46 a24 13 8.5 5 28 .4 1.9 1.6 447 420 2E2 a94 40 a23 IS 8.5 5 29 .3 1.6 1.4 411 _ 211 a93 42 a23 13 8.5 5 30 .2 1.9 1.6 599 _ 206 a91 42 a22 13 8.51 4.7 31 .2 - 1.6 590 - 191 40 13 8.5 Seoond- Runoff in Month foot-days Maximum Minimum Mean. aore-feet October ...... 29. 3 2.S 2 0.95 58 0. Q-l November...... 40.9 1.9 2 1.36 Oi December ...... 52. E 2.2 l! L 1.70 105 Calendar year 1942 ....-...... '...... 7.717. 1? 379 2 21.1 16,310 January...... 25,470.2 10,400 1. , 50,520 February...... 11,759 2,090 8*7 420 23, 320 arch...... 23,508 5,260 191 758 46,630 April...... 4,035 136 *gL 91 134 8,000 May...... 1,841 90 40 59 4 3,650 June ...... 1,018 52 22 33)9 2,020 July...... 539 22 13 17.4 1.07O August...... 327,5 . 12 8. 5 10.6 650 September...... '...... 201.7 9 4. 7 6.72 400 Water year 194S-43 ...... 68,822.4 10,400 3 189 136,500 Peak discharge.- Jan. 22 (1:30 a.m.) 10,500 sec.-ft.; Jan. 22 (5s30 a.m.) 8,080 sec.-ft.; Jan. 22 llp.m.) 35,OOO sec.-ft.; Her. 3 (11:30 p.m.) 6,240 sec.-ft.; Mar. 4 (6 p.m.) 9,900 see.-ft. a No gage-height record; discharge interpolated, f Computed on basis of partly estimated gage-height record. Time baalat Pacific war time. To convert war time to standard time, subtract 1 hour. VENTURA RIVER BASIN 125 v North Forte Matilija Creek at ffetilija, Calif. Location.- Water-stags recorder, lat. 34°29'15", long. 119°18'20", In MS4 sec. as. T. 5 N., R. 23 W., at highway bridge, half a mile upstream from confluence with tbtllija Creek and half a mile north of Matilija. Drainage area.- 15.5 square miles. Records available.- October 1928 to September 1932, October 1933 to September 1943. Average discharge.- j*~ years, 11.4 second-feet. Extremes.- Maxliasa discharge during year, 2,700 second-feet Jan. 2S; minimum daily, 1.0 secoTST-foot Oct. 1, 8, 21-23. 1928-32, 1933-43: Maximum discharge, 5,580 second-feet Mar. 2, 1938; mlninsH, 0.1 second-foot Aug. 27 to Sept. 9, 1929, July 27 to Aug. 16, 1931. Cooperation.- Records furnished by Centura County Water survey. Discharge, lit second-feet, water year October 1942 to Septeober 1943 Day Oct. Nov. DBS. Jan. Feb. Her. Apr. Mar June July A»g.. Sept. I 1.0 1.5 1.5 1.7 63 101 so IS 10 5 2.3 8.5 2 1.1 1.5 i.s 1.7 54 98 29 is 10 6 8,4 8.7 3 1.1 1.3 1.5 1.7 48 2O6 SB 13 10 5 3.6 8.7 4 1.1 1.8 1.5 1.7 43 442 87 14 10 5 8.7 8.7 5 i.e 1.5 l.S 1.7 37 SIS 27 13 9.5 4.6 2.8 2.5 fi 1.0 1.3 1.5 1.7 36 197 86 14 9 4.6 2.9 2.5 7 1.1 l.S 1.6 1.7 34 146 26 14 8.5 4.8 8.9 2.4 a 1.1 1.8 1.6 1.7 32 119 25 14 8.5 4.2 3.8 2.4 s 1.2 l.S i.e 1.7 29 101 24 13 8.5 3.9 3.8 8.3 10 1.3 l.S 1.5 1.7 26 93 28 13 8.5 3.2 3.3 2.3 n 1.3 1.8 1.5 1.7 23 81 23 IS 8.5 3.6 3.8 2.3 iss 1.5 1.1 1.5 1.7 83 77 28 12 6.5 3.6 3.8 8.3 13 1.3 1.1 1.5 1.7 22 68 21 11 8.5 3.2 3.8 2. 14 1.2 1.1 1.5 1.7 28 66 21 11 8 3.6 3.8 8. 15 1.2 1.2 1.5 1.7 22 62 20 11 7.5 3.6 8.9 3. Ifi 1.2 1.8 1.5 1.7 BO 57 20 11 7.5 3.9 8.7 2. i.e 1.3 1.6 1.7 18 58 19 11 7 4.2 S.7 8. 1ft 1.1 1.3 1.6 1.7 17 57. 18 11 7 8.9 8.7 2.3 19 1.1 1.5 1.7 1.7 15 52 18 10 7 3.9 8.7 2.3 20 1.1 1.5 1.7 1.7 15 49 17 10 6.5 3.9 2.9 2.3 21 1.0 1.5 1.6 40 48 46 17 10 6.5 3.9 2.9 8.8 1.0 1.5 1.6 757 184 43 16 10 6.5 3.2 3.2 2.2 1.0 1.5 1.7 530 16O 42 16 10 6.5 2.9 3.8 2.2 ?4 1.1 1.5 2.3 73 255 40 15 9.5 5.5 8.9 2.9 2.3 25 1.2 1.5 2.1 41 149 38 15 10 5.5 2.0 2.9 2.3 ?6 i.e 1.5 1.7 70 124 36 15 10 5.5 1.6 S.7 2.4 VI I.E 1.5 1.7 76 113 35 14 11 5.5 1.6 8.7 2.5 2ft 1.9 1.5 1.7 57 106 34 14 11 5.5 1.6 2.7 8.4 S!f> 1.6 1.5 1.7 49 - 33 14 11 5 1.8 2.7 2.4 W» 1.5 1.5 1.7 68 _ 52 14 11. 5 1.9 8.7 2.3 31 1.5 ~ 1.7 73 - 31 - 10 2.1 2.6 Seccnd- Runoff in Hoatb foot-days Haxiatuin BiniauB Mean acre-feet 37.6 November...... 40.6 1.5 1.1 1.35 December...... 50.1 8.3 1.5 1.6E 99 Calendar year 1942 ...... 1,573.0 63 .8 4.31 3,120 1,788 255 April ...... 614 14 May. jiL::::::::::::::::::::::::::::::::::::::: 44V 107.6 01 « 88.7 8.2 September...... 71.7 2.7 2.2 2.39 148 Water yeari942-43 ...... 8,047.3 757 1.0 82.0 15,970 Pacific war tima, Io convert war ttae to standard tla»,subtract 1 hour. 126 VENTORA RIVER BASIN Coyote Creek near Ventura, Calif. Location.- Water-stage recorder, lat. 34°21'20B , long. 119°18 I 50B , near southeast corner or Santa Ana Grant, 200 feet downstream from highway bridge, half a mile upstream from Ventura River, and 54 miles northwest of Ventura, Ventura County. Altitude of gage, about 240 feet. Drainage area.- 41.1 square miles. Records available.- October 1927 to September 1932 and October 1933 to September 1943. Average discharge.- 15 years (1927-32, 1933-43), 16.5 second-feet. Extremes.- Maximum discharge during year, 11,000 second-feet Jan. 22 (gage height, 9.82 feet], from rating curve extended above 300 second-feet; minimum, 0.1 second-foot Oct. 21. 1927-32, 1933-43: Maximum discharge, 11,500 second-feet Mar. 2, 1938, by slope- area method; no flow Aug. 19 to Sept. 18, 1929. Remarks.- Records good except those between 300 and 500 second-feet, which are fair, and those above 500 second-feet or those for periods of doubtful or no gage-height record, which are poor. Cooperation.- Eleven discharge measurements furnished by Ventura County Water Survey. Discharge, in second-feet, water year October 1948 to September-1943 Daj Oct. MOT. Dec. Jan. Feb. Mar. Apr. May June July AuB. Sept. 1 0.2 0.2 0.2 o.s 77 67 26 all 4.0 1.4 0.8 0.8 2 .2 .2 .2 68 60 26 all 4.4 1.6 .8 .8 3 .2 .2 .2 .a 48 500 24 all 4.4 1.5 .7 .3 4 .2 .2 .2 .! 42 1,180 24 11 4.0 1.4 .7 .8 5 .2 .2 .2 Q 86 f530 26 11 3.7 1.5 .7 .8 6 .2 .2 .2 .8 82 247 30 11 3.6 1.5 .7 .4 7 .8 .2 .2 .8 26 175 25 10 3.4 1.4 .7 -.4.4 8 .2 .2 .2 .3 27 ri6i 24 10 3.4 1.4 .7 9 .2 .2 .2 .3 25 168 22 9.5 3.4 1.8 .7 .4 10 .2 .2 .2 .8 22 185 . 20 9 3.6 1.3 .6 .4 11 .2 .2 .2 .3 20 109 19 e.s 3.5 1.4 .7 .8 12 .2 .2 .2 .5 18 97 18 8 8.5 1.5 .5 .8 13 .2 .2 .2 .5 17 86 17 8 8.4 1.6 .6 .3 14 .2 .2 .2 .8 16 79 17 e 3.2 1.6 .6 .3 15 .2 .2 .2 .3 16 72 17 s r-,2 1.6 .5 .4 16 .2 .2 .2 .8 14 68 17 7.5 3.0 1.5 .5 .3 17 .2 .2 .5 .3 14 70 16 7 2.7 1.4 .4 .8 18 .2 .2 .3 .3 14 77 16 6.5 2.6 1.3 .4 .8 19 .2 .2 .5 .3 IS 68 15 6 2.3 1.4 .4 .3 20 .2 .2 .8 .3 12 852 14 5 2,3 1.3 .4 .8 21 .2 .2 .8 216 30 a48 14 5 2.1 1.3 .4 .8 22 .2 .2 .8 3,660 426 845 14 6 1.7 1.3 .4 .2 23 .2 .2 .4 [ 2,140 250 843 14 5 1.7 1.2 .4 .3 24 .2 .2 ,4 f307 476 840 13 5 1.6 1.1 .4 .3 25 .2 .2 .3 f!18 d!75 a37 12 5.5 1.5 1.0 .4 .3 26 .2 .2 .8 143 dl!5 36 12 6 1.6 1.0 .4 .3 ffT .2 .2 .3 162 485 33 IS 6 1.6 1.0 .4 .3 20 .4 .2 .3 77 66 31 12 6 1.6 .9 .4 .8 29 .3 .2 .8 68 _ 30 11 6.6 1.6 .9 ' .3 .3 30 ,2 .2 .3 111 _ 826 All 6.B dl.4 .8 .3 .2 31 .2 - .3 118 - «27 - 4.4 ~ .8 .3 ~ Second- i- Runoff in Month foot-days Kaxtaw Miniwu. Mean swr»-f«et October...... Carplnterla Creek near Carplnterla, Calif. Location.- Water-stage recorder, lat. 34°24'00n , long. I19°19'2S", at highway brWOT on state Highway 150, in El Hi-neon Grant, 400 feet downstream from Qovernador Creey and 2.4 miles northeast of Carplnterla, Santa Barbara County. Altitude of gage, abiut ', 150 feet. Drainage area.- 13.8 square miles. Records available.- January 1941 to September 1943. Extremes.- Maximum discharge during year, 1,450 second-feet Jan. 22 (gage height, 7.30 feet), from rating curve extended above 600 second-feet; no flow during several months. 1941-43: Maximum discharge, that of Jan. 22, 1943; no flow at times each year. Remarks.- Records good below 100 second-feet and fair above. Etoall lake above station receives runoff from 0.74 square mile, which is drained past station by pumping. Discharge, in second-feet, water year October 1948 to September 1945 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0 0 0 0 16 10 6.5 i.i 0 2 0 0 0 0 15 9.5 6.6 1.1 0 3 0 0 0 0 11 19 6 1.1 0 4 0 0 0 0 9 184 6 1.2 0 5 0 0 0 0 S 100 7 1.1 0 6 0 0 0 0 7 45 6 1.1 .02 7 0 0 0 0 6 32 6.6 .9 .1 8 0 0 0 0 5 28 6 .e .04 9 0 0 0 0 3.9 2S 6 .7 0 10 0 0 o . 0 5.7 24 4.7 .6 0 11 0 0 0 0 3.6 20 4.4 .6 0 12 0 0 0 0 3.1 17 4.2 .6 0 13 0 0 0 0 2.7 16 4.2 .6 .3 14 0 0 0 0 2.5 14 5.9 .6 .1 15 0 0 0 .01 2.5 15 5.7 .6 .1 16 0 0 0 .1 2.2 12 5.6 .6 .2 17 0 0 0 0 2.0 15 2.9 .6 .02 18 0 0 0 0 2.0 15 2.7 .6 .02 19 0 .01 0 0 2.0 11 2.6 .4 0 20 0 0 0 0 2.2 11 2.5 .4 0 21 0 0 0 626 4.4 10 2.2 .5 0 22 0 0 0 724 55 10 2.2 .1 0 23 0 0 0 f462 28 9.6 2.2 0 0 24 0 0 .02 m 76 9 2.0 .2 0 25 0 0 .2 28 30 6.6 l.S .5 0 26 0 0 0 25 20 8 1.8 .5 0 27 0 0 0 24 16 8 1.7 .5 0 28 .01 0 0 10 12 8 1.6 .2 0 29 .OS 0 0 9 7.6 1.4 .1 0 SO 0 0 0 17 - 7 1.5 .2 0 31 0 0 21 - 7 - .3 - Seoond- Runoff in Month foot-days Maximum Mininum Mean ao~*-feet 0 0.001 0.06 .01 0 .0003 .02 December, ...... 22 .2 0 .007 .4 Calendar year 1943 ...... 100.26 22 0 .276 199 66.0 S,990 546.3 76 2.0 12.5 6S6 25.0 1,410 April...... 110.7 7 1.3 5.69 220 May...... 1.2 .56 56 .90 .5 0 .030 1.8 0 0 0 . 0 August 0 0 0 0 0 September...... 0 0 0 0 0 Water year 1942-43 ...... 5,200.77 724 0 8.77 6,340 Peak dlBOhttrga.- Jan. 22 {12s50 a.m.) 1,260 sec.-ft.j Jan. 22 (9 p.m.) 1,46O see.-ft. j Feb. (10 a.m.) OB5 sec.-ft.} Peb. 84 (2 a.m.) 166 sec.-ft.; Mar. 4 (6 p.m.) 846 sec.-ft. . f Computed on baala of partly estimated gage-height record. Time baaIB: Pacific war tlae. To concert war time to standard tiaa, subtract 1 hour. 128 ALA3CWBRO CREEK BASIN Alascadero Creek near Ooleta, Calif. Location (revised).- Water-stage recorder, lat. 34°S5'S5", long. 119°48'40", In La Goleta Qrant, at nigbmy bridge Just downstream from Maria Ygnaclo Creek, 1 mile above mouth and 1.3 miles southeast of Goleta, Santa Barbara County. Altltudf of gage, about 4O feet (from topographic nap). Drainage area.- 18.3 square miles. Records available.- October 1941 to Septen&er 1943. Extremes.- Ifexlmum discharge during year, 1,300 eecond-feet Jan. 22 (gage height, 10.6 feet, from floodmarks), from rating curve extended above 550 secord-feet plus computed overflow; no flow during several months. 1S41-43: rbxlmum discharge, that of Jan. 22, 1943; no flow during a large part of each year. Remarks.- Records good except those above 100 second-feet, which are fair, or those for periods of fragmentary or no gage-height record, which are poor. Snail diversions above station for Irrigation. Discharge, in second-feet, water year October 1942 to Septenber 1943 Day Oct. Nov. Dec. Jan. Feb. liar. Apr. ay June July Aug. Sept. 1 0 10 5.5 al.8 2 0 7 4.8 al.6 3 0 4.0 12 1.4 4 0 3.5 200 1.3 5 0 3.0 75 2.5 6 0 2.0 21 4.9 7 0 1.5 13 2.2 8 0 1.1 19 1.4 ' eO.Ol 9 0 .7 50 1.2 10 0 .5 29 1.0 11 0 .4 11 .8 12 0 .4 8 .7 13 0 .4 6 1.0 14 0 .4 4.9 1.0 15 0 .4 4.3 .8 16 0 .4 4.3 .7 17 0 .4 7 .6 18 0 .3 8.5 .4 19 0 .3 5.6 .4 5.5 .5 20 0 3.1 * * ' 21 f!25 30 S.B .2 22 f800 167 3.3 .1 23 ' f340 51 .3.8 .1 . e.OE 24 f55 m 2.S .OS 25 S7 9 3.5 .2 26 43 6.5 2.5 .1 27 40 6.5 2.5 .OS 28 12 6.5 a2.4 .01 29 9 _ aS.3 .01 30 53 _ a2.2 .01 31 29 - a2.0 - Secofld- Runoff in Month foot-days Maximum Mininum Mean acre-feet October...... 0 o 0 0 0 November...... 0 . 0 0 0 0 Deoenber...... 0 0 0 0 0 Calendar year 194B ...... 62.8 26 0 .17 124 Janu ary...... 1,531 800 0 49.4 5,040 Febr uary...... 375.3 167 .3 IS. 4 744 Hare 524.5 200 2.0 16.9 1,040 April...... 26-. 68 4.9 , .01 .889 53 Ito...... :...... - .47 .016 .9 June ...... 0 0 0 0 July...... 0 0 i0 0 0 August ...... 0 0 0 0 0 Sept****...... '...... 0 6 0 0 0 *at»r p*»r 1948-48 ...... 2,467.96 800 0 e.73 4,830 '.- Jaa, SI (11 p.m.) 1,200 see.-ft. (time and dlafeharge estfcr-ted}; Jan. 28 (10 p.m.) l,30p BBC.-ft. Feb. ee (11 a.*.) 38? see.-ft.; Mar. 4 (4 p.ift.} $08 eec.-ft. a So gtgs-tafr _.....rweerdi dischaise. .. . sofflputed on baais of l^feegaitm ODTTB. e Daily discharge lea* than 0.1 sec.'! f Fragmentary gage-height record; discharge computed on teals of partial gat-e-hslght record* three discharge measurements, and records for San Jose Creek near Ooleta and Carpentaria Creek near Carpentaria. Time frasi.3! Pacific war tin*. To convert war time to standard time, sutitTact SAN JOSE CREEK BASIN 129 San Jose Creek near Qoleta, Calif. Location.- Water-stage recorder, lat. 34°27'25", long. 119048 t 30'1 , In La Goleta G::-ant, at Patterson Avenue Bridge, 1.1 miles downstream from unnamed tributary and 1.7 miles north of Ooleta, Santa Barbara County. Altitude of gage, about 120 feet (from topo graphic map). Drainage area.- 5.54 square miles. Records available.- January 1941 to September 1943. Extremes.- Jfexlmum discharge during year, 1.780 second-feet Jan. 21 (gage height, 7.24 feetj, from rating cuarve extended above 850 second-feet; no flow several days In October and August. 1941-43: Maximum discharge, 1,960 second-feet Apr. 4, 1941, from rating curve ex tended above 850 second-feet by logarithmic plotting; maximum gage height, that of Jan. 21, 1943; no flow at times during each year. Remarks.- Records good except those between 30 and 200 second-feet, which are fair, and those above 200 second-feet, or those for periods of partly estimated or no gage-height record, which are poor. One diversion of about 100 acre-feet per year and many small diversions above station for Irrigation. Discharge, in second-feat, water year October 1942 to September 1943 Day Oct. HOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.1 0.3 0.3 0.4 6.5 fS.S 2.2 1.2 0.6 0.1 aO.l .2 .3 .3 .4 4.9 3.4 2.1 1.1 .4 .3 a.l 3 .1 .1 .3 .4 f3.3 7.6 2.1 1.0 .4 .8 a.l I eO.OS 4 .2 .1 .3 .4 a3.0 93 2.0 1.1 .4 .3 f.2 .1 .1 .3 .4 a2.7 a26 2.S 1.1 .6 .3 .1 I 6 0 .2 .3 .4 a2.4 alS 2.7 1.1 .6 .3 .1 .1 8 .1 .3 .3 .4 al.9 f!2 2.0 1.1 .6 .3 .1 .1 9 .2 .3 .4 .4 al.S IB 1.8 1.0 .3 .3 .2 .1 10 .2 .3 .4 .4 al.3 12 1.7 .9 .3 .2 .2 .1 11 .4 .3 .4 .4 al.S 8.6 1.6 .9 .3 .2 .2 .1 12 .2 .5 .4 .4 al.l 7.6 '1.61.6 .9 .3 .3 .2 .2 13 .2 a. 3 .3 .4 al.l 6.6 .8 .2 .3 .S .2 14 .2 a.3 .3 .4 al.O 6 1.6 .8 .3 .3 .2 .2 15 .2 a. 3 .2 .4 al.O 6.5 1.6 .7 .2 .4 .8 .1 16 .1 a.3 .2 .4 a. 9 S 1.6 .6 .1 .4 .2 .1 17 0 .3 .3 .4 a.9 a4.S 1.6 .6 .1 .4 .1 .1 18 0 .7 .3 .4 a. 9 a4.2 1.4 .4 .1 .4 0 .1 19 .1 .8 .3 .3 a. S aS.8 1.3 .4 .2 .4 .1 20 .1 .4 .3 .2 fl.3 f3.4 1.3 .3 .3 .4 .2 9. Off 21 .1 .3 .2 179 14 3.0 1.2 .3 .1 .3 .1 28 .1 .3 .2 463 69 2.8 1.2 .4 .1 .2 .1 23 .1 .3 .4 fl48 f24 2.7 1.2 .4 .1 .2 .1 .1 24 .2 .3 1.2 f28 19 2,4 1.1 .6 .1 .1 .1 .1 3B .3 .4 1.1 fl3 9 2.4 1.2 .6 .2 .2 .1 > e.02 26 .1 .4 .5 17 7 2.6 1.3 .6 .1 .1 .2 27 0 .4 .4 16 a6.6 2.7 1.4 .6 .1 a.l .2 28 1.2 .3 .2 7.6 a4.6 2.7 1.3 .7 .1 a.l 0 .2 29 .6 .3 .3 6.5 _ 2.7 1.4 .6 .2 a.l 0 .2 30 .3 .3 .4 16 _ 2.6 1.3 .6 .2 a.l 0 .2 31 .2 - .4 11 - 2.4 - .5 - a.l 0 - Second- Rmoff in Month fcot-days MaxiBUB Minima Mean aife-feet 12 December...... 11.6 1.2 .2 .37 23 Calendar year 1942 ...... 272.1 41 0 .76 641 910.7 .2 arch...... 280.6 May...... f. 46 7.6 .1 July 24 2.98 September...... 3.50 .2 .117 6.9 Water year 1942-43 ...... 1,193.58 463 0 4.09 2,970 Peak discharge.- Jan. 21 (10 p.m.) 1,780 sec.-ft.} Jan. 22 (9 p.m.) 1,760 sec.-ft.} Feb. 22 (8 a.m.) 132 sec.-ft.; Mar. 4 (3 p.m.) 232 sec.-ft. a Ho gage-height record; discharge interpolated or computed on basis of one discharge measurement and normal recession curves. a Daily discharge leas than 0.1 second-foot. f Computed on basis of partly estimated gage-height record. Time basis; Pacific war time. To eotnrert war time to standard time, subtract 1 hour. 130 SANTA TOES RIVER BASIN Santa Ynez River at Jameson Lake, near Monteclto, Calif. Location.- Water-stage recorder, lat. 34e29'30", long. 119°30'50", In sec. 28, T. 5 N., R. S35 W., at Juncal Dam, 8.5 miles northeast of Monteclto. Altitude of gage, 1,950 feet. Records available.- December 1930 to September 1941 (monthly discharge), October 1941 to septemoer 1943. Average discharge.- 12 years (1931 43), 9.15 second-feet. Remarks.- Discharge represents Inflow to Jameson Lake and -Is computed from reservoir records. During year Monteclto County Water District diverted 1,120 acre-feet from Jameson Lake for municipal supply of city of Monteclto. Cooperation.- Records furnished by Monteclto County Water District. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.3 0.3 0.4 O.S 27 33 18 9.6 6.6 1.2 1.6 0.3 2 .3 .3 .4 .3 27 30 18 8.6 5.5 1.2 1 .1 .3 3 .4 .4 .4 .3 24 71 15 9.6 5 .6 .9 .3 4 .3 .6 .4 .3 21 274 14 8 3.6 1.7 .7 .3 5 .3 .4 .4 .3 17 221 15 9 4.7 1.7 .7 .6 6 .3 .4 .4 .3 15 109 16 8 6 1.7 .6 .6 7 .3 .4 .4 .3 13 77 11 7.5 4.6 .8 .7 1.1 8 .2 .4 .4 .7 11 66 17 7 4.2 1.1 .6 .5 9 .3 .4 .4 .3 10 63 16 7 5 1.6 .6 1.0 10 .3 .4 .4 .3 10 61 12 7.5 4.6 .9 .6 .6 11 .3 .5 .6 .5 S.6 66 13 6.5 4.6 1.4 .6 .6 12 .3 .3 .4 .3 7.5 49 8 7.5 4.5 1.4 .6 .6 13 .3 .3 .4 .3 8 46 12 7 4.3 .9 .4 .6 14 .3 .6 .4 .6 7.5 42 12 6.5 4.1 1.6 .4 .6 15 .3 .4 .4 .7 7.5 41 12 7.5 4.1 .9 .4 .6 16 .3 .3 .4 .3 7,5 38 9 7.5 3.0 .9 .3 .6 17 .3 .3 .4 ,6 7.5 36 9 7.5 2.8 .9 .6 .6 18 .3 .3 .4 .6 6 34 9 6.6 3.0 .9 .4 .6 19 .3 .4 .4 .4 6.5 33 9 6 2.2 .9 .4 .6 20 .2 .4 .4 .3 6 30 9 6 2.1 .9 .5 .6 21 .3 .4 .4 .8 17 29 9 4.6 1.3 .S ,4 1.0 22 .3 .4 .4 606 146 87 9.6 4.7 1.3 ,8 .6 .9 23 .8 .4 .8 1^470 112 24 9.5 3.1 1.1 ,S ]L.O .8 24 .3 .4 .3 153 136 83 11 5 8,1 .8 .4 1,1 25 .3 .4 .9 60 76 83 11 6.5 1.4 .S .3 1.1 26 .3 ' .4 .4 40 52 83 11 5.6 1.5 .8 .3 1.0 27 .7 ,4 43 28 0,5 S.6 1.6 1,0 .4 1.1 .3 .4 .5 9.6 7 8.1 1.0 .8 .4 28 36 36 ' 6.5 29 .6 .4 .4 25 _ 81 9.6 .6 1.1 .3 .5 30 .3 .4 ,6 Si _ 19 9.6 5,5 1.2 1.1 ,3 ,5 31 .3 * .5 - IS 6.5 "" ,9 .3 "* Seoond- Runoff in Month foot-days Ma*** «*.. Mean acre-feet QotolMr. . * . ' 10.4 0,8 0.2 0,34 21 November...... 11.7 ,6 .3 .39 83 December...... 13.7 .9 .3 .44 87 Calendar year 19*2 ...... 988.8 40 .2 8,53 1,830 January 8,410.1 1,470 .3 77.7 4,780 February...... @$5* 5 146 6 30.9 1,720 Maroh...... 1,687' 874 18 53.6 3,290 April...... 959.0 18 8 12.0 718 210.4 9.6 3.1 6.79 417 June ...... 96.3 5.5 .6 3.81 191 July...... 33.0 1.7 .6 1,06 65 August .... 17.3 1.6 .3 .56 34 September...... 19.8 1.1 .3 .66 39 Hater year 1942-43 ...... 6,704.8 1,470 ,8 15.6 11,320 Sote..- Discharge is change in storage plus diversion to city plus release to river plus spillway overflow plus bank storage plus evaporation minus precipitation. Tfaye baslgj. Pacific war tia». To convert war tlw to standard time, subtra-st 1 Jhour, SANTA WEZ RIVER BASIN 131 Santa Inez River near Santa Barbara, Calif. Location.- Lat. 34°31'40", long. 119°41'00", about on line between sees. 10 and 11, T. 5 N., R. 27 W., at Qlbralter Dam, 7 miles' north of Santa Barbara. Altitude of gage, about 1,800 feet. Drainage area.- 219 square miles. Records available.- November 1903 to April 1907, October 1907 to January 1908, February 1910 to 'November 1918, April 1920 to September 1943 {monthly discharge only Aorll 1920 to September 1941). Average discharge.- 29 years ( 1904-6, 1911-14, 1916-17, 1920-43), 59.6 second-f^et. Remarks.- Discharge represents Inflow to Qibralter Reservoir and Is computed from reservoir records. Flow regulated by Jameson Lake. During year Monteclto Co'inty Water District diverted 1,120 acre-feet from Jameson Lake. Cooperation.- -Records computed In cooperation with city of Santa Barbara. Discharge, in second-feet, water year October 1948 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May Jane July Aug. Sept. 1 0 374 281 176 S6 27 5 ? 0 298 262 170 82 27 5 3 0 263 341 164 S4 27 5 4 0 S36 2,190 158 82 28 5 5 0 804 2,390 164 76 26 5 R 0 215 972 ITS 67 25 4.0 0 195 655 159 63 24 4.0 R 0 164 535 149 58 23 3.0 0 153 597 142 52 22 3.0 10 0 142 637 137 2S 21 2.0 11 0 135 490 131 47 20 2.0 12 0 129 431 127 44 21 2.0 0 188 392 125 43 22 1.0 14 0 131 363 126 42 22 1.0 15 0 123 338 130 42 21 1.0 0 113 319 126 41 18 2.0 17 0 112 309 120 40 13 2.0 1ft 0 109 305 116 39 11 2.0 0 100 290 111 36 10 2.0 20 0 95 275 108 34 9 2.0 7 1S8 265 105 33 S 2,0 S.560 699 254 103 31 8 2.0 10,060 748 242 100 27 7 1.0 1,390 926 232 97 26 7 1.0 25 459 574 223 93 26 6 1.0 367 418 215 90 27 6 1,0 686 344 207 S7 28 6 1.0 433 304 200 S7 31 5 0 28 354 . 193 S6 30 5 0 v\ 332 - 188 82 30 5 0 31 475 ~ 181 ~ 28 0 Second- Runoff in Month foot-days Maximum Minimum Mean ao re-feet 0 0 0 November...... 0 0 0 0 0 December...... 0 0 0 0 0 Calendar year 1942 ...... 8,623.0 810 0 23.6 17,100 17,113 7.620 926 95 14,772 May...... 1,403 S6 408 28 67.0 5 0 0 0 0 September...... 0 0 0 0 0 Water year 194S-43 ...... 45,199.0 10,060 0 124 89,640 Hote.- Discaarge ia change in storage plus diversion to city plus release to river plus spillway overflow plus evaporation minus precipitation. Time basis; Pacific war jtlme. To convert war time to standard time, subtract 1 hour, - 132 SANTA YNEZ RIVER BASIN Santa Ynez River below Gibraltar Dam, near Santa Barbara, Ollf. Location.- Lat. 34°31'40", long. 119041'00", about on line between sees. 10 and 11, T. 5 N., R. 27 W., Just downstream from Gibraltar Dam, 7 miles north of Santa Barbara.- Altitude of gage, about 1,200 feet. Records1941). available.- April 1920 to September 1943 (monthly discharge only prior to October Average discharge.- 23 years, 44.3 second-feet. Remarks.- Discharge represents flow In Santa ynez River passing Glbralfr Reservoir. Flow regulated by Gibraltar Reservoir and Jameson Lake. During year, city of Santa Barbara diverted 3,180 acre-feet from Gibraltar Reservoir and Monteclto County Water District diverted 1,120 acre-feet from Jameson Lake. Cooperation.- Records computed In cooperation with city of Santa Barbara. Discharge, in second-feet, water year October 1942 tc September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June Jily Aug. Sept. 1 0.4 0.5 0.4 0 386 284 176 SI 25 0.5 0.5 0.5 .4 .4 .4 0 314 265 170 7S 82 .5 .5 .5 .5 .4 .4 0 266 304 164 78 21 .5 .5 .5 .6 .4 .4 0 241 1,950 158 78 20 .5 .5 .5 & .5 .4 0 0 207 2,600 161 72 IS .5 .5 .5 6 .5 .4 0 0 201 1,010 186 64 18 .5 .5 .5 7 .4 .4 0 0 212 675 160 58 17 .5 .5 .5 8 .4 .4 0 0 166 541 150 55 15 .5 .5 .5 9 .4 .4 0 0 155 594 143 48 10 .5 .5 .5 10 ,4 .4 0 0 142 642 157 44 11 .5 .5 .5 11 .4 .5 0 0 134 500 ^ 44 12 .5 .5 .5 12 .4 .5 0 0 129 436 127 41 12 .5 .5 ,5 13 .4 .5 0 0 126 596 124 36 13 .5 .5 .5 14 .4 .5 0 0 1E9 367 124 55 13 .5 .5 .5 1J> .4 .5 0 0 124 542 129 55 12 .5 .5 .5 16 ,4 .6 0 0 113 521 127 35 10 .5 .5 .5 17 .4 .5 0 0 110 512 120 32 . 6 .5 .5 .5 18 .4 .5 0 0 109 307 116 30 3.4 .5 .5 .5 19 .4 .5 0 0 100 294 112 «7 2.1 .5 .5 .5 20 .4 .5 0 0 93 277 107 23 1,2 .5 .5 .5 21 .4 .4 0 0 174 266 104 22 1.2 .5 .5 .5 22 .5 .4 0 831 624 256 102 21 .7 .5 .5 .5 23 .5 ,4 0 10,170 816 243 99 18 .5 .5 .5 .5 24 .5 .4 0 1,580 906 252 96 16 .5 .5 .5 .5 25 .5 .4 0 497 602 225 92 17 .5 .5 .5 .5 26 .5 .4 0 575 434 216 87 19 .5 .5 .5 .5 27 .5 .4 0 674 552 208 84 20 .5 .4 .5 .5 28 .5 .4 0 445 310 200 85 23 .5 .5 .5 .5 .5 .4 0 56S 194 SI 26 .5 .5 .5 30 .5 .4 0 327 _ 188 78 26 ,5 .5 .5 .5 31 ,5 0 470 - - 182 24 - .5 »4 - Second- Uoath Maximum Hinimui Mean Runoff in i foot-days ao re-feet 27 .44 26 December...... 1.6 .4 0 .05 3.2 Calendar year 1942 ...... 8,035.3 232 0 22.0 15,960 15.735 0 506 51,210 7,675 960 93 274 15,220 March...... 14,825 2,600 182 478 29,400 April...... 5,728 186 78 124 7,590 May...... 1,224 81 16 39.5 2.430 265.6 25 .5 8.85 527 15.1 .5 .4 .50 51 15.4 .5 .4 .50 51 September. ."...... 15.0 .5 .5 .50 30 Water year 1942-43 ...... 43,524.9 10,170 , 0 119 86 330 Hote.- Discharge is apjllway overflow plus irelease to river. Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour. SANTA YNEZ RIVIR BASIN 133 Santa Ynez River near Santa Ynez, Calif. Location (revised).- Water-stage recorder, lat. 3403SI 20", long. 120°01'25", In Canada de los Plnos Grant, at San Lucas Bridge, 500 feet upstream from- Santa Agueda Creek, and 4 miles southeast of Santa Ynez, Santa Barbara County. Altitude of gage, about 500 feet.. Drainage area.- 435 square miles. Records available.- December 1928 to September 1931, October 1932 to September 1S43. Average discharge.- 13 years (1929-31, 1932-43), 133 second-feet. Extremes^- Maximum discharge during year, 33,000 second-feet Jan. 23 (gage height, 16.45 feet): no flow Oct. 1 to Nov. 18. 1929-31. 1932-43: Kaximum discharge, 43,700 second-teet Mar. 8, 1938 (gage height, 17.90 feet), from rating curve extended above float measurement of 34,100 seccnd-feet; no flow for several months in most years. Remarks.- Records good except those above 1,000 second-feet and those for periods of no gage-height record, which are fair. Flow regulated by Jameson Lake and Gibraltar Reservoir. Water diverted out of basin above station to cities of tfcnteclto md Santa Barbara. Discharge, in seccnd-feet, water year October 1942 tc September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug- Sept. 1 0 0.2 0.9 a62s a440 313 117 42 10 £.5 1.4 2 0 .e .9 aS88 a405 298 118 41 10 £.7 1.3 3 0 .s .9 451 590 876 10S . 40 10 £.5 1.8 4 0 .2 .9 595 5,860 278 105 59 10 £.5 1.3 5 0 .2 l.O 559 4,450 348 108 57 10 2.5 1.3 ^ 6 0 .2 1.0 508 8,880 385 105 56 9 S.5 1.3 7 0 .8 1.0 516 1,510 505 94 55 8.5 E.5 1.8 8 0 .8 1.0 871 1,850 276 90 54 8 £.7 1.8 9 0 .8 1.0 850 1,620 a262 64 33 7.5 S.7 1.8 10 0 .2 1.0 227 1,690 f848 81 52 7 S.S 1.0 11 0 .8 1.1 2O8 1,870 f235 78 30 7 £.Z .8 12 0 .5 1.1 196 1,010 a225 76 29 6.5 f.l 1.2 13 0 .5 1.1 184 a 890 f214 N a74 29 6 £.1 1.3 14 0 .5 1.1 174 a810 207 N a71 89 6 1.9 1.0 15 0 .5 1.8 164 a730 253 a68 88 5.5 1.6 1.0 16 0 .5 1.2 161 8675 855 a66 86 5.5 1.3 1.0 17 0 .5 1.8 158 a660 810 a63 84 5 1.2 1.2 18 0 .4 1.8 146 al,030 197 a60 81 5.5 .9 1.3 19 .1 .4 1.2 143 a700 a!90 58 80 6.5 .8 1.0 20 .1 .5 8.8 138 618 8183 56 19 6 .9 1.0 21 .1 .5 67 329 aseo a!76 54 17 6 1.2 1.0 22 .1 .6 7,670 1,600 a550 169 50 15 6 J.4 1.0 23 .1 .6 L7.100 1,690 a580 165 46 14 5.5 1.6 1.0 24 .1 .8 3,160 8,080 a490 157 45 14 4.4 J.7 1.2 25 .1 .8 1,850 1,370 a460 154 44 13 4.4 3.7 1.4 26 .1 .8 1,050 987 440 149 42 18 4.2 1.7 1.6 27 .1 .8 1,430 708 415 145 41 11 5.9 1.9 1.6 28 .8 .8 aeoo a515 395 135 41 10 3.6 J.7 1.6 29 .2 .8 a600 371 135 42 10 3.1 J.7 1.6 30 .2 .9 a655 J 362 127 43 10 2,7 1.6 1.6 31 .9 a937 334 43 8.5 1.6 Second- _ Runoff in Month fcot-days Maximum Minimum Mean acre-feet Goto her...... 0 0 0 0 0 Nove 1.5 .2 0 .05 5.0 Dece bar...... 13.6 .9 .8 .44 17 Calendar year 1948 18,659.7 473 0 34.7 25,100 January 34,741.6 17,100 .9 1,181 68,910 Febr 14,588 8,080 138 521 88,920 llaro 55,405 5,66O 334 1,078 66,860 Apr! 1...... 6,629 585 127 881 13,150 May. 2,163 117 41 69.8 4,890 June 750 42 10 25.0 1,490 July 195.8 10 2.5 6.32 388 Augu 58.5 8.7 .8 1.68 116 September...... 36.8 1.6 L ' 8 1.23 73 Water year 1948-45 ...... 98,576.6 17,100 0 254 ' 183.600 Peak discharge.- Jan. 23 (3t45 a.m.) 33,000 sec. -ft.} Feb. 28 (8:45 p.m.) 5,880 aec. -ft. { Bar. 4 1 a p.m.) 10, 200 aec. -ft. a Ho gage-height p ecord; discharge interpolated or con iputed on baala pf discharge measurements, fragmentary gage-hei ght record, and records for other st atione in Santa Ynez River Basin, f Computed on baai i of partly estimated gage-height re cord, Time baglas Paoif ic war time. To convert war time to standard time, subtract 1 hour. 134 SANTA YNEZ RIVER BASIN Santa Ynez River near Lompoc, Calif. Location.- Water-stage recorder, lat. 34°38'30", long, 120°25'50", near boundary of La Mission Vleja de la Purisima Grant, at Robinson Bridge, lj miles east of Lompoc, Santa Barbara County, and 2£ miles downstream from Salstpuedes Creek. Datum of gage is 79.28 feet above mean sea level, datum of 1929. Drainage area.- 790 square miles. Records available.- November 1906 to September 1918 (1909, gage heights only), April 1925 to September 1943. Average discharge.- 27 years (1907-8, 1910-18, 1925-43), 238 second-feet. Extremes.- Maximum discharge during year, 32,000 second-feet Jan. 23 (gage height, 19.65 feet;; minimum, 2.3 second-feet Sept. 8. 1908-18, 1925-43: Maximum discharge, 45,000 second-feet (revise-?) Mar. 3, 1938 (gage height, 29.3 feet, revised, site and datum then In use), from rating curve ex tended above float measurement of 38,000 second-feet on basis of records for station near Santa Ynez; no flow at times In 1929-31, 1934, 1936, 1937, 1937, 1940, 1941. Maximum daily discharge, roughly estimated, 62,000 second-feet, occurred Jan. 9, 1907. Remarks.- Records good except those above 5,000 second-feet and those for periods of no gage-height record, which are fair. Flow regulated by Jameson Lake and Gibraltar Reservoir. Water diverted out of basin above station to cities of Montecito and Santa Barbara. Some water for irrigation pumped from wells along banks o-f river. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 4.9 10 15 21 al,010 73S 380 160 58 18 6.5 3.3 2 4.4 11 15 21 a716 646 376 164 60 18 6 3.6 3 4.9 18 15 20 621 742 364 148 60 18 6.5 3.6 4 4.4 12 16 20 634 2,900 342 143 58 IS 6 3.6 5 4.9 12 16 20 476 6,640 422 143 56 19 6 3.6 6 4.9 13 16 SO 421 3,320 571 143 53 19 6 3.3 7 5.6 13 16 20 406 2,360 493 136 51 18 6 3.3 8 5.6 12 17 20 396 1,920 404 12S 50 17 ,6 3.3 9 5.6 13 17 20 367 1,980 364 120 48 14 5.5 3.6 10 5.6 12 17 20 a326 1,990 342 116 46 14 6 3.6 11 6.6 12 17 20 a300 1,670 316 113 a44 14 6 3.6 12 6.6 12 17 20 a286 1,440 297 106 *43 14 5 3.3 13 6.6 12 18 20 274 1,430 278 102 a41 14 5 3.6 14 6.6 12 18 81 263 1,240 265 100 a40 13 6.5 4.0 15 7 IS 18 21 240 1,090 874 95 a38 13 6.5 3.6 Ifi 8 ' 12 19 21 238 970 298 91 37 13 5.5 3.6 H 8 13 19 28 233 874 883 89 36 12 6.5 3.3 la 6.5 14 19 22 225 1,130 276 89 34 12 5.5 3.3 19 6.5 17 19 82 216 980 261 87 32 18 6.6 3.6 20 6.5 16 19 26 210 829 244 84 31 10 5 3.6 21 6.6 16 19 173 351 758 244 80 . 29 10 6 3.3 22 6.5 16 19 3,660 1,180 703 229 78 2$ e 4.7 23 6.5 16 21 18,300 2,500 662 214 78 27 8 4.0 3.0 24 6.5 15 34 7,300 2,460 616 214 68 25 7.5 4.0 3.3 25 7 16 SI a2,420 2,380 578 211 58 22 7.6 4.3 3.6 26 7 16 24 al,820 1,660 542 190 56 22 7.S 4.3 3.6 XT 7.5 15 22 al,940 1,210 513 181 60 22 7.6 4.0 4.0 2B 10 16 21 al,810 916 480 181 58 21 7 4.0 4.3 ?.9 12 16 21 a960 _ 447 168 66 20 7 3.6 4.3 30 10 16 21 a786 .. 422 160 58 19 6.6 3.3 4.7 31 10 21 al,030 - 398 - 58 - 6.6 3.3 - Second- Runoff in Month foot-days Maximum Minimum Meat acre-feet 208.4 12 4.4 6.72 413 402 IV 10 ^ 13.4 797 December...... 696 34 16 19.2 1,180 Calendar year 1942 ...... 26,251.7 667 3.3 71.9 62,070 jMIQILt'*. 40, 60S 18,300 SO 1,310 30,540 Febf 20,4O7 2,500 310 40,480 41,001 6,640 398 1 323 81,520 8,638 571 ieo *2d6 17,630 as1 8,047 160 56 98. S 6,040 i»ija SO 19 S8.4 2,260 July...... 388. 0 19 6.5 IE. 4 760 Auguat ...... 161.0 6.5 3.S 5.19 319 September...... ,\ ...... 1W,2 4.7 2.3 3.87 213 Water year 1942-43 ...... 116,906,6 18,300 2.8 3SO 231,900 Peak discharge.- Jan. S3 (1 p.m.) 52,000 sec. -ft.! Feb. 23 (7:20 a.m.) 3,080 see. -ft.; Feb. 24 (10 p.m. ) 3,040 sec.-ft. ; Map. 5 (9 a.m.) 8,3SO sec.-ft. a Ho gage-height record; discharge computed on baais of discharge measurements cm Jan. 25, 27, 30, Feb. 2, 12 and records for Station at Santa Ynez and other stations In basin; Juno 11-15, by interpolation. time basis; Pacific war time. To convert war tlae to atandard ttwa» swbtra-st 1 hour. SANTA YNEZ RIVER BASIN -135 Santa Ynez River at Pine Canyon, near Lompoc, Calif. Location,- Water-stage recorder, lat. 34°40'15", long. 120°29'40", In southwest portion of Hisslon La Purlslma Grant at Dyer Bridge on Pine Canyon road, 2.7 miles mr-tiiwest of Lompoc, Santa Barbara County. Altitude of gage, about 60'feet (from topographic map). Drainage area.- 844 square miles. Records available.- my 1941 to September 1943. Extremes.- Maximum discharge during year, 32,000 second-feet (based on maximum at ata- 'tion near Lompoc) Jan. 23 (gage height, 21.0 feet, from high-water marks); minimum, 0.5 second-foot Sept. 8, 9. 1941-43: Maximum discharge, that of Jan. 23, 1943: minimum, that of Sept. 8, 9, 1943. Remarks.- Records fair. Plow regulated by Jameson Lake and Gibraltar Reservoir; water diverted out of basin above station to cities of Monteclto and Santa Barbara, and some water for Irrigation pumped from wells along banks of river. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 3.2 10 IS 22 1,030 740 398 16S 54 15 3.0 1.1 2 3.2 11 15 22 720 640 372 165 51 15 3.0 1.0 3 3.1 11 15 22 620 720 351 159 49 IS 2.9 .9 4 3.2 11 15 22 530 2,670 336 142 51 16 2.9 .9 3.5 11 16 22 470 6,730 378 136 45 17 2.8 1.0 6 3.5 11 16 22 420 3,390 520 133 43 17 2.8 1.2 3.4 12 16 22 400 2,390 468 136 39 17 2.6 .8 3.4 12 16 21 390 1,920 420 136 39 15 2.S .3 9 3.8 12 17 21 360 1,980 366 126 41 14 2.5 .6 4.2 12 17 21 320 1,990 326 121 41 13 2.1 .9 11 .8 12 17 21 300 1,670 298 116 41 12 2.2 1.0 .9 12 17 21 280 1,440 275 a!06 43 13 2.2 1.1 12 17 21 270 1,430 267 95 39 12 1.8 1.4 14 12 17 21 260 1,240 250 93 36 12 2.0 1.3 .5 12 17 21 250 1,090 258 93 36 12 2.4 1.4 16 .5 13 17 22 230 970 284 93 36 11 2.2 1.4 17 13 17 22 230 870 275 95 36 11 2.2 1.4 18 .9 14 17 22 220 1,100 245 93 36 10 2.2 1.5 19 15 17 22 210 950 237 87 34 10 2.0 1.6 .8 15 17 23 210 820 221 87 29 10 1.8 1.7 21 .8 15 17 50 340 750 221 84 27 1.8 1.4 22 .9 15 17 3,460 1,120 694 213 78 25 1.7 .7 15 19 18,000 2,490 650 202 75 24 1.8 .7 .5 15 29 7,720 2,430 601 198 72 23 1.8 1.0 5.5 15 30 2,520 2,420 570 187 66 23 5 2.0 1.3 26 6 15 26 1,800 1,660 541 180 61 23 5 2.2 l.S 6 15 24 1,930 1,210 514 177 61 21 4.4 2.2 1.6 28 9 15 23 1,850 910 494 174 54 20 4.0 2.1 1.7 29 11 IS 23 970 - 462 177 54 18 3.6 2.1 1.8 10 15 23 780 - 438 174 54 16 3.6 2.1 2.0 10 ~ 22 1,010 - 420 SI - 3.0 1.6 Second- Runoff in Month foot-days Maximum Minimum Mean acre-feet 162.6 11 3.1 5.25 -323 393 15 10 13.1 780 December ...... 581 30 15 18.7 1,150 Calendar year 1942 ...... 26,423.0 700 1.8 72.4 52,400 40,523 18,000 21 1,307 80,380 20,300 2,490 210 725 40,260 40,884 6,730 420 1,319 81,090 April ...... 8,448 520 174 282 16,760 May...... 3,087 165 51 99.6 6,120 1,039 54 16 34.6 2,060 17 3.0 10.5 646 69.5 3.0 1.6 2.24 -138 September ...... 36.5 2.0 .6 1.22 72 Water year 1942-43 ...... 115,849.2 18,000 .6 317 229,800 a Ho gage-height record; discharge interpolated. Hote.- Discharge measurements inadequate for developingsnt of a retina for Jan. 22 to Mar. 18: daily discharge computed on basis of records at station near Lompoc. Time baais; Pacific war time. To convert war time to standard time, subtract 1 hour. 136 SANTA INEZ RIVER BASIN Santa Cruz Creek near Santa Tnez, Calir. Location.- Water-stage recorder, lat. 34°34'40", long. 119°55'5O", In Tequepis Grant, hair a mile upstream Irom mouth and 9^ miles eoutheast bf Santa Yta«z, Santa Barbara County. Altitude of gage, about 700 leet (Irom topographic aap). Prior to Jan. 22, 1943, at site 900 leet downstream. Drainage area.- 77.2 square miles. Records available.- October 1941 to September 1943. Extremes.- Maximum discharge during year not determined, occurred on Jan. 22; minimum aaiiy, 0.5 second-loot Dec. 5, 6. 1941-43: Maximum discharge, that ol Jan. 22, 1943; minimum dally, that of Dec. 5, 6, 1942. Remarks.- Records good, except those for periods of no gage-height record, which are Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 o.s 0.6 0.6 O.S t!06 _ . _ 7 i.e 1.1 2 .s .6 .6 .8 - - _ _ _ 7 1.8 1.1 3 .7 .7 .6 .8 - - t69 _ _ 7 l.S 1.1 4 .7 .S .6 .7 - - - t32 _ 7 l.S 1.2 5 .7 .8 .5 .7 - - - t!5 6.5 1.7 1.1 6 .7 .7 .5 _ _ _ _ _ 6 1,6 1.1 7 .6 .6 .6 - - . _ _ 5.5 1.6 1.1 8 .6 a. 6 .6 - _ _ _ _ 5.5 1.5 1.2 9 .6 a. 6 .6 - _ - _ _ 5 1.5 1.2 10 .6 a. 6 .6 t43 - tei - - 4.5 1.5 1.2 11 .6 a. 6 .6 a. _ _ _ _ _ 4.3 1.6 1.2 12 .6 .6 .6 a. - _ _ t24 _ 4.3 1.6 1.1 13 a. 6 .6 .6 a.S - _ t54 _ 4.5 1.5 1.1 14 a. 6 .6 .6 .S - _ _ _ 4.5 1.5 1.0 15 a. 6 .6 .6 .8 - - - - - 4.7 1.5 1.0 16 .6 .6 .6 .S _ _ _ _ _ 4.9 1.5 1.0 17 .6 .6 .6 .8 - . - - tio 4.9 1.4 1.0 18 .7 .6 .6 .8 - - - - 4.9 1.4 1.0 19 .7 .6 .6 a.S - . _ _ _ 4.7 1.4 1.0 20 .6 .6 .6 a.S t28 - - - - 4.3 1.4 1.0 _' 21 .6 .6 .6 7 _ _ _ _ 4.3 1.4 1.0 22 .6 .6 .6 - - t41 _ _ 4.0 1.4 1.0 23 .7 .6 .7 - - - - - _ 3.7 . 1-3 1.0 24 .7 .6 .9 - tees _ _ _ t9 3.5 1.2 1.0 25 .7 .6 1.5 t!41 - - - t!7 3.3 1.2 1.0 26 .7 .6 1.4 _ _ tiob _ _ _ 3.1 1.2 1.0 27 .7 .6 1.0 _ _ _ _ 7 2.7 1.1 1.0 28 .9 .6 .9 - _ _ t36 _ 7 2.3 1.1 1.0 29 .7 .6 .9 ,tS7 . - - . 7 2.1 1.1 1.0 30 .7 .6 .S _ _ _ _ 7 2.0 1.1 1.0 31 .7 - .8 - - - - - 1.9 1.1 Seoond- Runoff in oath foot-days Maxima Minimi Mean acre-feet October...... 20.7 0.9 0.6 0.67 41 November . . 18.6 .8 .6 .6E 37 December ...... 21.9 1.5 .6 .71 43 Calendar year 1942 ...... 3,255.6 1SS .5 8.0E 6,460 January 1-21 ...... optcfi* iX .7 1.05 44 February...... Haroh...... _ April...... _ May...... June 27-30 ...... Santa Agueda Creek Bear Santa Ynes, Calif. Location.- I&ter-Btage recorder, lat. 34°35'40", long. I20a0l t30" r In Canada de loe Pinos Grant, at highway brtdgsa three-quarters of a mile upstream from ramith ex& 34 miles southeast of Itenta "Baez, Santa Barbara Ccranty. Altltttde of gage, about 520 feet. Bralmge area.- 56 .4 square miles. Records avallatfle.- Jaiwary 1941 to September 1943. ISctrenes.- Maximum discharge during year, 1,280 second-feet Jan. 22 (gage height, 3.40 feetj, from rating curve extended above 600 second-feet by logarithmic plotting on basis of previous curve; minimum dally, 0.2 second-foot Oct. 1-26. 1941-43: naxiDnm discharge, 1^580 second-feet Mar. 3, 1941 (gage height, 4.60 feet); miniums dally, Q.I second-foot many days In 1942. Remarks.- Records fair except those above 500 second-feet and those for periods of doubt- ful or no gage-height record, which are poor, aaall diversions above station for Irrigation. Discharge, la second-feet, water year October 1942 to September 1943 0*7 Oct. Mov. Dec. Jan. Feb. Mar. Apr. Bay June July Aug. Sept. 1 0.2 0.4 0.6 0.9 d7.5 -9 on 1.8 3.S 1.1 dl.4 1.2 2 .2 .4 .6 .9 6 9 d6 1.8 2.8 1.1 dl.4 1.1 3 .2 .4 .6 .9 5 ris d6 1.8 3.3 1.1 dl. 1.1 4 .2 .5 .6 .9 4.5 378 d5 2.3 1.8 1.1 dl. 1.5 6 .2 .5 .6 .9 4.2 128 d8 2.8 1.8 1.1 dl. dl.O 6 .2 .5 .7 .9 5 f33 d6 2.3 2.3 1.1 1. dl.O 7 .2 .5 .7 .9 6 no d5 1.1 2.3 1.1 1« dl.O 8 .2 .5 .7 .9 7 f34 as 1.4 1.8 1.1 1* dl.O 9 .2 .6 .8 .9 4.2 77 d4.0 1.4 2.3 1.1 1. dl.O 10 .2 .6 .8 .9 2.8 73 d4.0 2.3 2.3 1.1 1.4 1.0 11 .2 .6 .8 .9 2.3 f44 d3.e 12 .2 .6 .8 .9 1.8 34 d3.6 1.4 1.4 1.1 1.1 .9 13 .2 .6 .8 .9 1.8 S3 3.5 .9 14 .2 .8 .8 .9 1.8 14 4.2 1.8 1.4 .8 1.4 .8 15 .2 .8 .8 .9 1.8 12 8 2.8 1.4 .8 1.8 .8 16 .2 .8 .8 .9 1.8 8 5 3.5 1.4 .8 1.8 .9 17 .2 .8 .8 1.0 1.8 22 3.5 2.8 1.4 1.1 2,3 1.0 IS .2 .8 .8 1.2 1.8 f95 d3.5 2.3 1.1 1.4 2.3 1.1 19 .2 1.0 .8 1.2 1.8 f!6 d3.5 1.8 1.1 1.4 2,3 1.2 20 .2 1.0 .8 8.5 1.8 10 d3.5 1.4 .8 1.4 2,3 1.2 21 .£ .8 1.0 29 9.5 9 d3.5 1.8 .8 1.7 l.B 1.3 22 .2 .8 1.0 585 53 9 d3.5 1.8 1.1 2.3 1.4 1.4 23 .2 .8 1.2 503 38 12 43.5 2.3 1.1 2.3 1.4 1.5 24 .*2 .8 1.8 aSO 111 10 d5.5 2.3 1.1 1.8 1.8 1,6 25 .8 1.2 15 18 9 d3.5 2.3 1.1 2.3 1.4 1.6 26 .6 1.0 60 12 9 d3.5 2.3 1.1 1.8 1.4 1.6 27 [4 .6 .9 91 10 d9 d3.0 2.8 1.1 1.8 1.3 1.5 28 1.3 .6 .9 10 9 d8 1.6 3.5 1.1- 2.3 1.3 1.5 29 .4 .6 .9 7 dB 2.5 3.5 .8 1.8 1.3 1.4 30 .3 .6 .9 44 d7 2.3 3.5 .8 1.4 1.2 1.4 31 1 .9 ass d7 2.8 dl.4 1.2 Second- Runoff In Month foot-days Maximum Minimum Mean acre-feet Goto 7.9 1.3 0.2 0.25 16 Hove 19.7 1.0 .4 .66 39 Deoe ber...... 26.4 1.8 .6 .85 52 Calendar year 1942 461.8 51 .1 1,27 915 Jam) ary 1,448.3 585 .9 46.7 S 2,870 Febr 331.2 111 1.8 11.8 657 Hare 1,139 378 7 36.7 2,260 Apri 1...... 129.5 8 1.6 4.32 257 May. 69.3 3.5 1.1 2.24 137 June 46.9 3.6 .8 1.56 93 July 42.9 2.3 .8 1.38 85 Augu St...... 47.0 2.3 1.1 1.52 93 September...... 35.5 1.6 .8 1.18 70 Bater year 1942-43 ...... 3,343.6 585 .2 9.16 6,630 Pealf discharge.- J«n- £ 2 (1 a.m.) 958 sec. -ft.: Jan. 22 (9 p.n. ) 1,280 sec. -ft.; Mar. 4 (1 p.m.) 100 sec.-ft. a No gage-height record; discharge computed on basis of probable shape of discharge recession curve. d Doubtful gage-height record; discharge computed on basis of discharge measurements mad-i about once a week, probable shape of discharge recession curve, and weather records. f Computed on basis of partly estimated gage-height record, Time basis! Pacific war tine. To convert war time to standard time, subtract 1 hour. 138 SANTA TOEZ RIVER BASIN La Zaca Creek at Buellton, Calif. Location.- Water-stage recorder, lat. 34°36'35", long. 120011'15", in San carlos de Jonata Grant, at culvert on State Highway 150 In Buellton, Santa Barbara County. Altitude of gage, about 340 feet. Drainage area.- 38.7 square miles. Records available.- January 1941 to September 1943. Extremes.- Maximum discharge during year, 340 second-feet Jan. 22 (gage height, 4.32 feet) ', no flow during most of year. 1941-43: Maximum discharge, 874 second-feet Mar. 3, 1941; maximum gage height, 6.80 feet Mar. 4, 1941; no flow during several months of each year. Remarks.- Records fair. No diversion above station. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0 4.1 0.2 do.l 'A2 0 3.2 0 d.l 0 2.0 2.1 d.l 4 0 1.3 41 d.l 5 0 .7 30 9 6 0 0 15 7.5 7 0 0 7.5 5 8 0 0 9 2.4 9 0 0 13 2.0 10 0 0 14 .4 11 0 0 11 d.3 12 0 0 8 d.2 13 0 0 7 d.l 14 0 0 6.5 0 15 0 0 5.5 0 16 o- 0 5 0 17 0 0 7.5 0 18 0 8 0 19 0 0 4.6 0 20 0 0 3.6 0 21 .9 0 3.6 0 22 51 3.3 4.1 0 23 102 1.0 4.1 0 24 9.5 3.6 3.6 0 25 .6 3.6 2 4 0 26 2.4 3.2 .6 0 27 11 1.3 .6 0 28 4.1 1.0 d.5 0 29 2.4 d.4 0 30 3.2 _ d.3 0 31 - d.2 0 Seoond- Runoff in Month foot-days Maximum Minimum Mean acre-feet 0 0 0 0 December...... 0 0 v 0 0 0 Calendar year 1942 ...... 26.0 4.S 0 .07 52 28.3 March...... S18.9 41 0 434 27.3 9 May...... 0 0 0 0 0 0 O September...... 0 0 0 0 0 Water year 1942-43 ...... 464.8 10 E 0 1.27 921 Peak discharge.- Jan. 32 (5 a.m.) 72 sec. -ft.; Jan. 22 (11 p.m.) 340 see. -ft. ! Jan. 23 (6 p.m.) 127 sec.-ft.; Mar. 4 (3 p.m.) 106 sec.-ft. d Doubtful gage-height record; discharge computed on basis of discharge meas-ire»6]it8 and related data. Note.- A discharge of a few one-hundredths of a second-foot for a lew houre on Feb. 6, 9, 20, 21, is disregarded. Time baalas Pacific war time. To convert war time to standard time, subtra-it 1 hour. SANTA YNEZ RIVER BASIN 139 Salslpuedes Creek near Lompoc, Calif. Location.- Water-stage recorder, lat. 34°34'55", long. 12(J°24'35", near northern edge °r sa*1 Julian Grant, at highway bridge on Jalama road, Just downstream from El Jaro Creek and 5 miles southeast of Lompoc, Santa Barbara County. Altitude of aaae about 230 feet (from topographic map). Drainage area.- 46.6 square miles. Records available,.- January 1941 to September 1943. Extremes.- Maximum discharge during year, 1,950 second-feet Jan. 22 (gage height, 9.90 reet;; minimum, 0.8 second-foot Sept. 21 (gage height, 2.80 feet). 1941-43: Maxlmur discharge, 7,190 second-feet Mar. 3, 1941 (gage height, 19.95 feet); minimum, that of Sept. 21, 1943. Remarks.- Records good, except those for no gage-height record, which are fair. Small diversions for irrigation above station. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 1.8 2.0 2.6 3.0 24 26 IS 8.5 4.5 3.9 2.4 2.O 2 1.8. 2.0 2.4 3.0 20 25 18 8.5 4.2 3.6 2.4 2.0 3 1.8 2.2 2.S 3.0 19 120 17 ' S.59 3.9 3.4 2.4 2.0 4 1.8 2.4 3.8 3.0 17 393 I7 3.6 3.4 2.4 2.0 5 2.0 2.2 2.8 3.0 17 f!36 il 8.5 3.4 3.4 2.2 2.0 6 2.0 2.2 2.6 3.0 16 f67 f22 7.5 3.4 3.1 2.2 2.0 7 2«2 2.2 3.0 3.0 15 54 flS 7.5 3.1 3.1 2.4 2.2 8 2.0 2.2 3.6 3.0 15 80 fl7 7 3.1 3.1 2.2 2.0 9 2.2 2.2 2.6 3.0 15 129 f!7 7.5 3.4 3.1 2.2 2.0 10 2.4 3.2 2.6 2.8 12 114 16 7 3.4 3.1 2.0 2.0 11 2.6 2*2 2.6 2.S 11 SO 16 7 3.1 2.9 2.0 2.0 12 2.6 2.0 2.6 2.8 11 59 15 7 2.9 2.9 2.2 l.S 13 2.2 8.0 2.6 2.8 11 a53 15 7 2.6 3.1 2.2 2.0 14 2.0 2.2 2.6 2.8 11 a47 14 7 2.6 3.1 2.2 2.2 15 2.0 2.6 2.6 3.0 10 a42 14 6.5 2.9 3.1 2.2 2.0 16 2.0 2.4 2.6 3.0 10 37 14 6.5 2.9 2.9 2.2 2.0 17 2.0 2.4 2.6 3.0 10 40 13 6 3.1 3.1 2.2 1.8 18 1.8 3.2 2.S 2.S 10 42 13 6 3.4 2.9 2.2 l.S 19 1.8 4.9 2.S 2.6 10 32 12 5.5 3.4 3.1 2.2 1.6 20 1.7 3.0 2.S 3.0 11 30 12 6 3.4 3.1 2.2 1.6 21 1.7 2.6 2.8 185 124 28 11 6 3.4 3.4 2.0 1.4 22 1.7 2.6 2.S 570 263 26 11 5.5 3.6 3.1 1.8 1.2 23 1.8 2,6 3.8 236 r/e 23 10 4.9 3.6 2.9 1.8 1.4 24 2.0 2.6 11 f54 73 22 10 4.9 3.6 2.6 2.0 1.4 25 2.0 2.6 6 f32 36 21 10 4.9 3.9 2.4 2.0 1.4 26 2.E 2.6 3.7 70 31 21 10 5.5 3.9 2.4 l.S 1.6 27 2.4 2.S 3.2 56 30 21 10 6 3.9 2-. 2 2.0 1.6 28 5 2.S 3.0 28 28 21 10 6 3.9 2.2 2.0 1.6 29 3.5 2.8 3.2 25 _ 21 9.5 5 3.9 2.2 1.8 2.0 _ 30 2.4 2.8 3.2 64 21 Q 4.5 4.2 2.4 1.6 1.8 31 2.2 - 3.2 32 - 19 - 4.5 2.4 l.S Second- R-moff in Month foot-days Maximum Minimum Mean ai re- feet r October...... 67.6 5 1.7 2.18 134 November...... 75.5 4.9 2.0 2.52 150 December ...... 99.1 11 2.4 3.20 197 Calendar year 1942 ...... 3,619.6 335 1.7 9.92 7,170 January ...... 1,410.4 570 2.6 45.5 2,800 February ...... 936 263 10 33.4 1,860 March ...... 1,850 393 19 59.7 3,670 April ...... 439.5 41 9 14.6 S72 Hay...... '...... 201.7 9 4.5 6.51 400 June ...... 104.2 4.5 2.6 3.47 207 July...... 91.6 3.9 2.2 2.95 182 August ...... i ...... 65.2 2.4 1.6 2.10 129 September...... 54.4 2.2 1.2 1.81 108 Water year 1942-43 ...... 5,395.2 570 1.2 14.8 10,710 a Ho gage-height record; discharge Interpolated. f Computed on basis of partly estimated gage-height record. Time basis,: Pacific war time. To convert war time to standard time. ubtract 1 hour. 140 SAN ANTONIO CRBffi BASIN San Antonio Creek at Karris, Calif. ' Location.- Water-stage recordsr, lat. 34°45'45", long. 120°25'40", In Los Alamos Grant, at nignway bridge a quarter of a mile south of Harris, Santa Barbara County. Alti tude of gage, about 300 feet (from topographic map). Drainage area.- 101 square miles. Records available.- January 1941 to September 1943. Extremes.- Maximum discharge during year, 336 second-feet Jan. 23 (gap:e height, 4.74 feet;; no flow most of year except during January to April. 1941-43: Maximum discharge, 1,880 second-feet Mar. 3, 1941 (garce height, 10.1 feet at site and datum then In use), from rating curve extended above 430 second-feet by logarithmic plotting; no flow at present site during a large part of each year. Remarks.- Records good above 5 second-feet and fair below, except those for periods of aoubtful or no gage-height record, which are fair. Water pumped f "om stream and from wells along banks above station for irrigation. Some irrigation water wasted Into stream above station. Discharge, in second-feet, water year October 1942 tc September 1943 Day Oct. HOT. Dec. Jan. Feb. Mar. Apr. May Jun» July Aug. . Sept. 1 0 0 0 o 10 ' a5 0.9 0 0 0 0 eO.Ol 2 0 0 0 0 a5 a2 ,1 e.Ol 0 0 0 O 3 0 0 0 aS.O f4.5 .4 e.02 0 0 0 e.Ol 4 0 0 0 0 f2.0 109 .2 e.02 0 0 0 0 5 0 0 0 0 1.0 91 10 0 0 0 0 e.Ol 6 0 e.Ol 0 0 1.0 d42 ' a5 e.Ol 0 0 0 e.Ol 7 0 e.Ol 0 0 1.1 d2S a2.o e.04 0 o 0 e.Ol a 0 e.Ol 0 0 1.4 d24 al.O 0 0 0 e.07 0 9 0 e.03 0 0 1.6 d34 f.8 0 0 0 e.02 0 10 0 0 0 0 1.0 d34 .5 0 e.Ol 0 0 0 11 0 0 0 0 .S 26 .2 0 0 0 e.06 0 12 0 0 0 0 .7 fie .1 e.Ol 0 0 e.2 0 IS 0' e.Ol 0 e.Ol .6 14 e.Ol e.05 e.Ol 0 0 0 14 e.Ol e.Ol e.l e.02 .4 11 e.Ol 0 0 0 0 0 15 e.02 0 e.Ol e.02 .2 9.5 0 0 e.Ol 0 0 0 16 e.Ol 0 e.l e.03 f.2 B.5 e.03 0 0 0 0 0 17 e.Ol 0 e.Ol 0 f.s 9.5 e.02 0 0 0 0 0 18 e.02 0 e.04 e.03 a. 3 17 0 0 0 0 0 0 19 e.Ol 0 e.Ol e.Ol a. 2 f9 0 e.03 e.03 0 0 0 20 0 0 e.Ol e.Ol a.l 6.5 e.06 e.Ol 0 0 0 0 21 0 0 0 11 fl.4 4.7 e.Ol e.l 0 0 0 0 22 0 0 0 92 15 3.5 e.2 0 e.02 0 e.Ol 0 23 0 0 e.02 204 f7.5 2.S e.3 0 e.Ol 0 e.03 0 24 0 0 4.4 f44 f!6 2.5 0 0 e.Ol 0 0 0 25 0 0 1.9 f!3 a9 2.3 0 0 0 e.Ol 0 0 26 0 0 e.l 27 aS 2.3 e.Ol 0 0 0 0 0 27 e.l 0 e.Ol f40 a7 2.1 e.Ol 0 0 0 0 0 28 e.Ol 0 0 a!3 a6 2.1 e.Ol 0 0 0 0 0 29 0 0 0 tB _ 1.7 e.Ol e.Ol 0 0 0 0 30 0 0 0 18 _ 1.6 e.Ol e.Ol 0 0 0 0 31 0 - 0 a!5 - 1.1 0. 0 0 Seoond- Runoff in Month foot-days Maximum Minimum Mean acre-feet October...... f ...... 0.19 0.1 0 0.006 0.4 NoTeober...... 0.08 .03 0 .603 .2 Deceaber...... 6. -71 4.4 0 .816 13.3 Calendar year 1942 ...... 389.78 48 0 .986 713 January...... 4B5.13 204 0 15.6 see February...... 101.0 16 .1 3.61 200 March...... 529.2 109 1.1 1V.1 1,050 April...... 22.49 10 0 .750 45 Hay...... 3S .1 0 .010 .6 June...... 10 .03 0 .003 .8 July .01 .01 0 .000 .02 August...... 39 .2 0 .013 .8 September...... 05 .01 0 .002 .1 Water year 1942-43 ...... 1,145.67 204 0 3.14 2,270 a Doubtful or no gage-height record; discharge computed on basis of dlsstoapf« Measurements. partly estimated gage-height record, or probablfr recession curves; d Doubtful gage-height record. e Mean discharge for,24 hours; flow during part of day only, f Computed on battla of partly estimated gage-height record. Time baalei Pacific war time. To convert war tine tc standard tine, aub'treTt 1 hour. SANTA MARIA RIVER BASIN 141 Guyana River near Santa Maria, Calif. , Location.- Water-stage recorder, lat. 35°00'50", long. 120°16'45", In Suey Grant, at nignway bridge, 3 miles upstream from Alamos Creek and 10 miles northeast of Smta Maria, Santa Barbara County. Altitude of gage, about 610 feet. Drainage area.- 912 square miles. Records available.- December 1929 to September 1943. Average discharge.- 13 years (1930-43), 29.3 second-feet. Extremes.- Maximum discharge during year, 8,400 second-feet Jan. 23 (gage height, 11.30 reetj; minimum dally, 0.3 second-foot Oct. 20, 21. 1929-43: Maximum discharge, 17,300 second-feet Mar. 3, 1938 (gage height, 16.6 feet) by slope-area method; no flow for long periods In some years. Remarks.- Records fair. Some water for irrigation pumped from wells along banks above Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.4 0.6 3.8 S.5 124 33 50 25 12 4.8 3.2 0.9 2 .4 .6 4.0 8.5 97 31 45 24 13 4.8 2.0 .9 3 .4 .6 4.2 8.5 69 30 42 23 13 4.7 1.9 .9 4 .4 .6 4.8 8.5 63 f206 40 23 13 4.6 1.8 .9 J> .4 .6 5 8.5 f58 705 f81 22 13 4.6 1.7 .9 6 .5 .7 5.5 8 46 325 new 21 13 4.5 ,1.7 .9 7 .6 .7 6.5 8 42 275 75 21 12 4.4 1.7 .9 8 .6 .8 7.5 f8 43 300 55 20 12 4.3 1.6 .9 9 .6 .8 7 f8 42 468 50 19 11 4.2 1.6 .7 10 .6 .9 6.5 f8 36 524 47 19 11 4.2 1.6 .6 11 .6 .9 6.5 8 34 350 45 le 10 4.1 1.5 .6 12 .6 1.0 6.5 8.5 32 220 43 17 10 4.0 1.5 .6 13 .6 1.0 6.5 8 32 160 41 17 10 4.0 1.5 .6 14 .6 1.2 6.5 8 32 125 39 16 9 3.9 1.4 .6 15 .6 1.5 6.5 8.5 30 100 f41 16 9 3.9 1.3 .6 16 .5 1.6 6.5 S.5 29 80 54 15 9 3.9 1.2 .6 17 .4 1.9 6.5 8.5 28 me 42 15 8 3.9 1.1 .6 18 .4 3.9 7 8.5 27 267 35 14 8 3.8 1.0 .6 19 .4 5 7.5 8.5 28 175 32 14 8 3.8 1.0 .6 20 .3 3.2 7.5 f9 28 130 30 13 7 3.7 .9 .5 21 .3 3.0 7.5 36 28 110 29 13 7 3.7 .9 .5 22 .4 2.4 7.5 54 8 35 95 23 IS 7 3.6 .9 .5 23 .4 2.2 11 a, £90 75 86 28 IS 6 3.6 .e .S 24 .6 2.4 20 513 86 33 28 11 6 3.6 .8 .S 25 .6 2.6 17 180 98 80 £7 11 6 3.5 .8 .5 26 .6 2.8 15 199 56 75 27 11 6 3.4 .7 .5 27 .6 3.0 12 176 45 70 27 11 5 3.2 f.7 .5 28 1.5 3.4 10 168 37 66 26 11 5 3.0 .7 .5 29 .9 3.8 9.5 80 - 63 26 11 S 2.8 .7 .5 30 .7 3.8 9 117 - 60 26 IS 5 2.6 .7 .5 31 .6 - 8.5 134 - 55 - 18 - 2.4 .7 - Second- Runoff in Month / foe t-days Maximum Minimum Mean ac-e-feet 34 December...... :...... 249.3 20 S.E 8.04 494 Calendar year 1942 ...... 3,946.2 168 .3 10.8 7,830 2,290 March...... £U2 A9 1 May...... September ...... 19.4 .9 .5 .65 38 Water year 1942-43 ...... 13,960.4 2,290 .3 36.3 27,740 Peak dlscharee.- Jan. 23 fl o.m. ) 8f 400 see. -ft.: Mar. 5 (6:30 a.m.) 1,O10 see. -ft. j Map. 9 f Computed on basis of partly estimated gage-height record. Note.- Doubtful or no gage-height record, Jen. 18, 19, Feb. 27 to Har. 3, Har, 6-8, 13-16, Hap. 19 to Apr. 4, Apr. 7-14, Apr. 17 to Aug. 26; discharge computed on basis of 18 discharge measurements, nonriCL recession £rom higher stages, or by interpolation, end comparison with records for ofier stations in Santa Marie River Basin and on Sespe Creek. Time baalst Pacific war time. To convert war time to standard time, subtract 1 hour. 142 SANTA MARIA RIVER BASIN Santa Maria River at Guadalupe, Calif. Location.- Wate^-stage recorder, lat. 34°58'25", long. 120°34'15", In Guadalupe Grant at state highway bridge half a mile north of Guadalupe, Santa Birbara County, Alti tude of gage, about 40 feet. Drainage area.- 1,763 square miles. Records available.- January 1941 to September 1943. Extremes.- Maximum discharge during year, 13,800 second-feet Jan. 23 (gage height, 7.36 reet); no flow for several months. 1941-43: Maximum discharge, 14,700 second-feet Mar. 5, 1941 (gage height, 8.00 feet); no flow during several months of each year. Remarks.- Records poor, several small diversions above station for Irrigation. Discharge, in second-feet, water year Ootober 1943 to September 1943 Da, Oct. Nov. 'Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0 500 2 0.2 f. 0 85C .2 S 0 100 tj .1 4 0 t25 t266 .1 5 0 ie H.700 10 5 0 12 860 100 0 11 500 50 n 0 10 teoo 10 9 0 e h3,200 1 ao 0 6 f3,000 t.2 11 0 4 1,500 .2 12 0 3 T850 .1 13 0 Z 60O ,1 14 0 : 450 .1 15 0 i 360 to 0 i 300 0 17 c : 400 o 0 : 1,000 0 19 c ] t550 0 20 0 i 350 0 ?1 to ti 200 0 2.23C e 150 0 7.94C t!5 tioo 0 24 tfS.,220 100 60 0 25 t5OO SO 30 0 26 t400 26 10 0 60C 10 5 0 ?fl 70C 5 2 0 29 55C 1 0 t75C .e Q 31 1,000 " t.2 ~ Second- Runoff in Month foot-days Maxinun Minimus Mean acre-feet December...... 0 0 0 0 0 Calendar year 1942 ...... 389.9 160 0 1.07 774 1 "7 ROD 7,940 0 677 96,480 Febr 1.164* ,SQO I 41.6 2,810 March...... 17,087,1 S',200 »S 5«9 33,770 172J 100 0 6,74 342 0 0 . 0 0 0 0 , 0 0 0 0 0 ->' 0 O 0 0 0 0 0 0 0 September. ... .1...... 0 0 o. 0 0 Water year 194E-43 ...... 36,264.0 7,940 0 99.3 71,900 t Discharge nseasurement nsade on this day. f Computed on basis of partly estimated gage-height record. l£li£ Ho ^S®-1161*1* record during year except for Jan. 22-84; ai Paoiflo war tine. To convert war tlae to standard tlflte, SANTA MARIA RIVER BASIN 143 Huasna River near Santa Maria, Calif. Location.- Water-stage recorder, lat. 35°01'20", long. 120°19'20". in Sue'y Grant, half a mile upstream from Cuyama River and 8 miles northeast of Santa Maria, Santa Barbara County. Altitude of gage, about 600 feet. Drainage area.- 119 square .miles. Records available.- December 1929 to September 1943. Average discharge.- 13 years (1930-43), 29.1 second-feet. Extremes.- Maximum discharge during year, 4,700 second-feet Jan. 23 (gage height, 7.44 reet); minimum dally, 0.5 second-foot Oct. 19-21. 1929-43: Maximum discharge, 11,400 second-feet. Feb. 11, 1938 (gage height, 11.26 by slope-area method; no flow during parts of several years. Remarks.- Records fair. No diversion above station. Discharge, In second-feet, water year October 1949 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.6 0.8 2 2.6 f244 30 66 21 7 3.6 2.4 1.6 2 .6 .7 2 2,2 flS7 2S 63 20 7 3,6 2.3 1.6 3 .6 1.1 2 2.2 flS6 32 58 20 6.5 3.6 2,2 1.6 4 .8 1.6 2 2.2 flOO 137 53 19 6.5 3,5 2.1 1.5 5 .8 1.6 2 2,2 f87 26? 66 18 6.5 3.5 2.1 1.5 6 .8 1.5 2 2.2 80 237 60 17 3.5 3.4 2,1 1.5 7 1.1 1.5 2 2.0 74 171 66 17 6 3,4 2,1 1.5 8 1.3 1.5 2 2.0 71 908 62 16 6 3.4 2.1 1.4 9 1.5 1.5 f2.0 2.0 62 2,620 60 15 6 3.4 2.0 1.4 10 2.0 1.5 2.0 2.0 52 1,930 54 14 5.5 3.4 . 2.0 1.4 11 2.0 1.8 2.0 2.0 44 625 51 14 5.5 3.4 2.0 fl.4 12 1.7 1.5 2.0 2.0 36 f655 48' 13 5,5 3.4 2.0 1.4 13 '1.11.3 1.5 2.0 2,0 32 377 46 12 5 3.4 2.0 1.4 14 1.5 2.0 2.2 30 285 43 12 5 3,4 1.9 1.4 15 .8 1.7 2.0 2 2 28 23S 41 12 5 3.4 1.8 1.4 '.1 16 1.5 2.0 2.5 26 196 59 11 4.9 3.4 1.8 1.4 17 .6 1.7 2.0 2.2 25 316 37 11 4.S 3.4 1.7 1,4 it) .6 f!2 2.0 2.0 25 697 35 11 4.7 3. S 1.6 1,4 .5 5 2,0 2.2 24 296 53 10 4.6 3.3 1.6 1.4 ,5 4 2.0 2,S 24 217 31 10 4.5 3,2 1.6 1,3 21 .5 3 2.0 58 24 184 29 10 4.4 3.2 1.6 1.3 22 .6 2 2.0 1,62O 36 154 27 9 4.3 3,1 1.6 1.2 23 1.0 2 f6.5 2,800 44 140 26 9 4,2 3.1 1.6 1.1 24 1.5 2 25 761 59 135 25 4,1 3,1 1.7 1.1 25 1.5 2 10 302 49 124 26 a 4.1 3,1 1,7 1.2 26 i.e 2 6 f469 39 108 24 8 4.0 3.0 1.7 1.3 27 1.5 2 4 354 32 100 23 e 3.9 2-, 9 1.7 1,4 28 3.6 2 fS.l 270 51 95 25 7.3 3,6 2,8 1.7 1.4 29 2.5 2 2.6 286 M 87 22 3.6 2.7 1.7 1.4 30 1.5 2 2,5 512 - 84 22 7.5 3.7 2.6 1.7 1.4 31 1.1 " 2.5 348 * 71 7 2,5 1.7 Second- Rvnoff in Month fcct-days Maximua Minimum Mean acre-feet December...... 106,4 26 2.C 3,43 211 Calendar year 1942 ...... 4,890,5 128 .E 13.4 9,700 24 March...... 23 080 April...... QQ May. September...... 41.7 1,6 1.1 1.39 83 Water year 1942-43 ...... 23,228,0 2,800 .E 63.6 46,080 Pert. dJLajBharge.- Jan. 22 <1«20 a.».) e,8OO »«o.-ft., .T«B. es (* p-».) 4,70O BMr.rtr; K«ir. * (9:SO a.n,j 3,180 sec.-ft.; Har. 17 (il|46 p.n.j 1,586 sec.-ft,' f Computed on basis of partly estimated gage-height record, Hote.- Ho gage-height reeord HOT. 19 to Dec. 8, Deo» 24-27, Apr. 10 to Sept. lOj discharge com puted on basis of discharge measurements, normal recession froa higher stages, or by interpolation, and recordsifor other stations In Santa Maria River Saain and on Arroyo arande. Tine basis; Paelfie war tiae. To convert war tfcne to standard time, eubtract 1 hour. 144 SANTA mKIA BIVER BASIN Slsquoc River near Gary, Calif. Location.- Water-stage recorder, lat. 34°51'4O" f long. 130°15*4511 , in NEi sec. 17, T. y N., K. 32 w., half a mile downstream from Jepusojuet Creek and Si miles southeast of Gary. Altitude of gage, about 450 feet. Drainage area.- 442 square miles. Records available.- February 1941 to Septenfoer 1943. Extremes.- Maximum discharge during year, 5,900 second-feet Jan. 23 (fags height, 8.46 feet)',' from rating curve extended above 1,200 second-feet by logarithmic plotting; no flow during several months. 1941-1943: Maximum discharge, that of Jan. 23, 1943; no flow di-rlng several months of each year. Remarks.- Records fair. Some water is diverted by Sisquoc Ranch above station for Irrigation. Discharge, in seoend-f**t. mt«r year October 1942 to SepteatT 1943 Day Oct. NOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0 '0 333 125 151 46 »6 2 0 0 rm 116 129 42 a5 3 0 0 f!56 129 108 42 f4.0 4 0 0 fl.12 1,110 97 41 3.6 S 0 0 142 1,270 160 41 3.6 6 0 0 142 748 269 40 3.3 7 0 0 142 580 160 36 2.9 8 0 0 156 S94 138 32 2.2 9 0 0 138 952 134 30 1.9 10 0 0 101 1,100 116 28 1.7 11 0 0 86 840 101 26 1.6 12 0 0 62 688 82 26 ' 1.4 13 0 0 f42 615 72 24 1.2 1-4 0 0 37 559 62 24 .9 IS 0 0 35 524 120 24 .8 16 0 o 33 471 101 24 .6 IT 0 0 33 471 86 32 .6 18 0 0 ' 33 626 79 22 .5 19 0 S3 432 7S 20 .4 20 0 0 33 376 78 20 .4 21 0 3.8 47 327 74 18 .2 22 0 0,110 389 292 68 16 a.2 23 0 4330 364 252 64 14 a.l 24 0 9S8 432 220 63 12 0 25 .S 337 3875 209 60 11 0 26 0 309 280 199 58 10 0 27 0 456 209 199 56 10 0 '2928 0 306 170 189 54 9 0 0 266 184 SS 8.6 0 30 0 326 _ 189 SO 8 0 31 0 490 - 170 - r?.5 Second- Runoff in Month foot-days HftTiBUB Minima Mean ao re-feet October...... 0 0 0 0 0 Novonber 0 0 0 0 0 Decenber...... 2 .2 0 0.01 .4 Calendar year 1942 ...... 6,659.7 S12 0 *18 8 13,600 January ...... 7 881 8 5,330 0 254 15,630 February...... 4)176' 432 S3 149 8 P80 March...... 14,756 1,270 116 4*76 29^270 April...... /...... 2, 921 269 50 97.4 5,790 May...... 734.0 46 7*5 E3« 7 1,460 June ...... 43.1 6 0 1.44 86 July...... 0 0 0 0 0 August ...... 0 0 0 0 0 September...... 0 0 0 0 ' 0 Water year 1948-43 ...... 30,51B.l 3,330. 0 83.6 . 60,520 Peak discharge.- Jan. 23 {5 a.m.) 5,900 sec.-ft.; Har. 4 (10 p.a.) 2,150 »eo.-ft.j B»r. (8 a.m.) 1,160 sec.-ft. a Ho gage-height record; discharge Interpolated, f Computed on basis of partly estimated gage-height record. Time basis; Pacific war tlnse. To convert war tine to standard time, fubtrret 1 hour. ARROYO GRANDE BASIN 145 Arroyo Grande at Arroyo Grande, Calif. Location.- Water-stage recorder and concrete broad-crested weir control, lat. 35°07'£5"» I5ngT~120034 l 20", In Plsmo Grant at Arroyo Grande, San Luls Obispo County, a quirter of a mile upstream from Pacific Coast Railway bridge. Altitude of gage, about 100 feet. Drainage area.- 106 square miles. Records available.- December 1939 to September 1943. Extremes.- Maximum discharge during year, 2,800 second-feet Mar. 9 (gage height, 8,35 feet); minimum dally, 8.5 second-feet Oct. 2, 20, 21. 1939-43: Maximum discharge, 3,800 second-feet Mar. 4, 1941 (gage height, 8.80 feet); minimum, 0.1 second-foot July 31, 1940. Remarks.- Records good, except between 12 and 35 second-feet, and those for period of no gag5=height record, which are fair. Numerous small and intermittent diversions for Irrigation by pumping above station. Discharge, in second-feet, water year October 194£ to September 1943 Day Oct. NOV. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 9.5 10 9.5 13 160 47 110 47 20 17 11 Z 8.5 10 9.5 13 126 44 106 46 17 16 11 3 9.5 11 10 13 107 47 104 47 18 17 11 4 10 11 11 13 94 131 100 45 18 19 11 5 10 11 11 13 S2 167 122 44 18 17 9.f > all 6 10 9 11 13 75 140 114 42 20 17 10 7 10 10 11 13 71 118 102 42 21 16 10 6 10 10 11 13 73 5.44 98 39 20 16 . 12 9 10 10 11 13 65 8,090 93 33 20 18 10 10 11 10 11 13 59 1,720 37 36 20 18 11 11 12 9.5 11 14 56 940 83 34 18 21 11 11 12 12 9.5 11 12 52 610 80 32 21 20 12 11 13 11 10 11 12 48 440 77 31 23 17 12 11 14 10 10 11 11 46 346 75 30 19 15 12 12 15 10 11 11 11 44 286 73 28 20 16 13 12 16 9 11 10 11 42 273 71 * 26 19 IS 12 11 17 9.5 11 10 11 40 342 69 26 17 f 12 11 16 10 13 10 11 40 425 67 25 16 26 12 9.5 19 10 12 10 12 33 276 65 25 17 21 11 IS 20 S.5 11 s 10 12 38 235 63 23 20 18 11 11 21 8.5 11 10 109 42 208 61 20 IS 17 9 10 22 9 11 11 970 82 192 59 20 17 15 9.5 23 9.5 10 15 1,170 75 175 58 20 16 16 10 24 10 11 23 396 72 162 57 19 15 13 12 25 11 11 16 167 65 150 56 20 15 14 12 26 9 10 15 250 59 142 54 19 16 11 ' alO 12 27 9.5 11 14 169 54 135 52 21 IS 9.5 10 28 12 11 14 123 50 130 55 21 18 11 12 29 11 11 14 110 f!29 53 20 17 11 12 30 11 10 14 377 _ f!26 48 20 16 11 12 31 11 13 259 - fl!6 - 20 - 10 ~ Second- Runoff in Month foot-days Maximum Minimum Mean acre-feet October...... 312.0 12 8.5 10.1 619 November...... 317.0 13 9 10.6 629 December...... 370.0 23 9.5 11.9 734 Calendar year 1942 ...... 9,398.0 200 8.5 25.7 18,640 January...... 4,347 1,17? 11 140 8,620 February...... 1,855 160 38 66.2 3,680 March...... 10,886 2,090 44 351 21,590 April...... 2,312 122 48 77.1 4,590 May...... 926 47 19 29.9 1,840 June ...... 548 23 15 18.3 1,090 July...... 495.5 26 9.5 18.0 983 August ...... 333.5 13 9 10. S 861 September ...... 333.0 12 9.5 11.1 660 Water year 1942-43 ...... 23,035.0 2,090 8.5 S3.1 45,700 Peak discharge.- Jan. 22 (3 a.m.) 2,070 aeo.-ft.; Jan. 23 (6:30 p.m.} 1,710 sec. -ft.} Jan. 30 2,800 aeo.-ft.; Mar. 17 (11:30 p.m.) 648 aeo.-ft. a Ho gage-height record; diacharge interpolated or computed on basis of reoorda for Huasns River near Santa Maria. Tlrne_baala; Pacific war tine. To convert war time to atandard time, subtract 1 hour. 146 SAN UHS OBISPO CREEK BASIN Stelner Creek near San Luis Oblspo, Calif. Location.- Water-stage recorder and 90° v-notch weir, lat. 35°19', lore?. 120°41', In El CH6TPo" Potrero de San Luls Oblspo Grant, 2 miles upstream from con!" uence with Brlzzlolarl Creek and 3 miles northwest of San Luls Oblspo, San Luls Oblspo County. Altitude of gage, about 440 feet (from topographic map). Drainage area.- 4.1 square miles. Records available.- June 1942 to November 1943 (Icwnwater records only). Extremes.- 1942: Minimum discharge during period June to November, 0.26 second-foot (regulated) Sept. 13, 14. 1943: Minimum discharge during period July to November, 0.16 second-foot Oct. 5. Remarks.- Records fair In 1942, good In 1943. During 1942, flow regulated by temporary construction work. During both years there was occasional release of water from pipe line to Camp San Luls Oblspo. Discharge, In second-feet, 1942-45 1948 1943 Day June July Aug. Sept. Oct. HOT. July Aug. Sept. Oct. HOT. 1 _ 1.20 0.84 0.71 0.4S 0.74 _ 0.66 0.58 0.4S 0.58 2 - 1.16 .84 .71 .41 .74 _ .66 .53 .41 .52 3 - 1.18 .80 .63 .46 .87 _ .68 .53 .37 .48 4 - 1.08 .74 .60 .58 .87 _ .68 .55 .35 .46 9 - .97 .74 .58 .55 .68 - .60 .41 .26 .58 6 _ 1.J04 .71 .55 .58 .48 _ .58 .39 .35 .48 _ 7 1.01 .71 .55 '.50.58 .46 _ .58 .50 .39 .46 8 - .97 .63 .58 .48 _ .60 .50 .43 .46 9 - .87 .77 .53 .58 .46 .. .63 .48 .43 .43 10 - .90 .77 .60 .63 .41 - .63 .50 .43 .46 11 _ .90 .74 .58 .74 .41 _ .63 .50 .39 .48 12 _ .94 .66 .55 .60 .41 0.87 .63 .50 .33 .60 13 - 1.13 .68 .46 .58 .46 1.04 .63 .55 .33 .46 14 _ 1.45 .74 .39 . .50 .43 .90 .63 .60 .39 .46 15 - 1.45 .68 .50 .52 .67 .84 .58 .60 .33 .50 1 % 16 - 1.16 .66 .58 .48 .60 .87 .68 .55 .35 .65 17 _ .84 .66 .68 .46 .71 :87 .58 ,s3 .39 . 18 _ .84 .68 .63 .43 .80 .58 .50 .56 _ 19 - .84 .77 .58 .68 - .94 .58 .48 v .60 - 20 - .90 .as .80 .71 - .90 .60 .35 .66 T 21 _ .90 .66 .52 .68 .84 .48 .36 .68 _ 22 _ .71 .63 .46 .71 . .77 .60 .38 .52 « 23 - .71 .66 .SO .80 - .73. .56 .41 .46 - - .71 .63 .52 .87 . .71 .65 .50 .43 - £26 - .71 .63 .55 .84 - .68 .55 .50 .43 ~ 26 1.12 .77 .60 .58 .87 _ .60 .55 .48 .55 _ 27 1.12 .80 .84 .55 .87 _ .58 .60 .48 1.05 - 28 1.08 .77 1.03 .55 1.04 _ .63 .63 .50 .63 - 29 1.12 .77 .68 .52 .97 _ .63 .55 .50 .63 * 30 1.16 .74 .63 .50 .87 _ .66 .52 .48 .66 - 31 - 1 .77 .68 - .80 - .66 .55 - .55 - Month Second- Maximum Hiniaua K*aa Runoff in foot-days acre-feat June 26-50, 1942...... S. 60 1.16. I uonfl 1.120 11.1 July...... 29.13 1.46 .71 .940 87.8 33«3 1.03 . »60 .121 44.4 xCt J.O*O«r1 A flO .71 ov .563 33.5 £0,03 1.04 .41 .646 39.7 9.78 .87 .41 .878 19.4 _ _ . _ 805 July 12-31, 1943...... 16.60 1.04 .58 .7m 30.9 13* CG 68 .46 *IM9vfiJSQ 36* 2 14.73 .60 .33 .49* 2&« 2 14.66 1.06 .86 i *Ann rO 29.1 7.80 .58 .43 .486 IS. 5 The perioid...... - - - - ' 141 Pacific war tine. To convert war time to standard time, subtract 1 hour. SAUNAS RIVER BASIN 147 , Salinas River near Pozo, Calif. Location.- Water-stage recorder, lat. 35°18', long. 120°24', in SE| sec. 18, T. 30 S., K. 15 E., 1.6 miles downstream from Pozo Creek, 1.7 miles west of Pozojand 7 miles upstream from Saunas' Dam. Altitude of gage, about 1,350 feet (from topographic map). Drainage area.- 72.5 square miles. Records available.- July 1942 to September 1943. Extremes.- Maximum discharge during year, 5,800 second-feet Jan. 21 (gage height, 13.35 reet). from rating curve extended above 2,500 second-feet on basis of storage increase in Salinas Reservoir and by logarithmic plotting; minimum, 0.3 second-foot Sept- 5, 6. 1942-43: Maximum discharge, that of Jan. 21, 1943; minimum, that of Sept. £, 6, 1943. Remarks.- Records good Oct. 1 to Jan. 20, June 23 to Sept. 30, fair Jan. 21 to Jutfe 22. tfo regulation above Station. Water Is stored in Salinas Reservoir below static". Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. NOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 1.4 1.9 2.5 2.7 182 24 32 8 4.3 2.S 1.5 1.4 2 1.2 1.9 2.5 2.7 120 22 29 7.5 4.3 2.7 1.6 l.fc 3 1.1 2.0 2.7 2.7 93 29 27 7.5 3.9 2.6 1.6 1.2 4 1.1 2.2 2.7 2.7 79 280 26 7 3.9 2.4 1.6 1.2 5 1.1 2.2 2.7 2.7 66 1S5 36 7 3.9 2.4 1.6 .9 6 1.1 2.2 2.7 2.7 65 126 58 6.5 3.5 2.3 1.6 .9 7 1.2 2.2 2.7 2.7 50 91 43 6.5 3.2 2.3 1.6 1.2 8 1.2 2.2 2.7 2.7 50 546 37 6 3.2 2.2 1.6 1.4 9 1.4 2.2 2.7 2.9 40 2,090 37 5.5 3.2 2.2 1.6 1.1 10 1.4 2.2 2.7 2.7 34 1,130 . 32 5.5 3.2 2.1 1.6 1.5 11 1.5 2.2 2.7 2.7 29 446 27 5 3.5 2.3 1.6 1.5 \f. 1, 2.2 2.7 2.7 23 260 24 5 3.5 f> f> 1.6 1.4 13 1. 2.2 2.7 2.7 21 197 21 4,5 3.2 2.4 1.6 1.3 14 1. 2.2 2.7 2.5 19 159 19 4.6 3.0 S.5 s 1.6 1.4 15 1. 2.4 2.7 2.5 17 128 19 4.6 2.S 2.6 1.6 1.4 16 1. 2.5 Z.I 2.5 16 10S 18 4.6 2.5 2.5 1.6 1.4 17 1. 8.5 2.7 2.5 14 137 17 5 2.5 2.4 1.6 1.4 18 1. 2.9 2.7 2.5 14 232 16 4.6 2.5 2.4 1.5 1.2 19 1. 2.7 2.7 2.5 14 144 15 4.6 2.5 2.4 1.4 1.1 20 1. 2.5 2.7 2.5 14 10S 14 4.6 2.5 2.4 1.4 1.2 21 1.2 2.S 2.7 1,100 20 92 13 4.6 2.5 2.4 1.5 1.2 22 1.4 2.5 2.7 1,870 58 79 13 4.6 2.2 2.3 1.4 1.2 23 1.5 2.4 2.9 3,140 48 71 12 4.6 2.4 2.2 1.6 1.2 24 1.7 2.4 3.1 342 93 60 11 4.6 2.7 2.1 1.7 1.4 25 1.7 2.4 3.1 157 57 54 11 4.6 2.6 2.0 1.6 1.6 26 1.9 2.5 2.9 242 42 48 10 4.6 2.5 1.9 1.6 1.6 27 1.9 2.5 2.9 205 34 44 10 5 2.4 l.S 1.6 1.7 28 2.0 2.5 2.7 129 30 42 9.5 5 2.4 1.8 1.4 1.7 29 2.0 2.5 2.7 107 40 9.5 4.6 2.6 1.7 1.2 1.7 30 2.0 2.5 2.7 563 _ 43 9 4,6 a. e 1.6 1.2 1.6 31 1.9 2.7 326 - 36 - 4.3 - 1.5 1.4 ~ Second- !, <-.,« Rincf f in Month foot-days *«i»»« Minimum Mean ac~»-feet November. . .. 1 9 December ...... 84.7 3.1 2.5 2.73 168 Calendar year 1942 ...... _ _ _ _ 2 c February March...... 227 21 S May...... XGQ 94 September...... 40.3 1.7 .9 1.34 80 Water year 1942-43 ...... 17,886.0 3,140 .9 49.0 35,480 Peak discharge.- Jan. 21 (10:30 p.m.) 5,800 sec. -ft.; Jan. SS 1,2 a.m.) 5,010 sec.-ft. : . Mar. 9 148 SAUNAS RIVER BASIN Sallnas Reservoir near Pozo, Calif. Location.- Water-stage recorder, lat. 35°20', long. 120°30', In sec. 5, T. 30 S., R. 14 E., at dam on Sallnas River, 2 miles upstream from Pllltae Creek and 7.5 miles northwest of Pozo. Datum of gage Is at mean sea level (levels by Corps of Engineers, U. S. Army). Drainage area.- Ill square miles. Records available.- December 1941 to September 1943. Extremes.- Maximum contents durlrfg year, 20,430 acre-feet Jan. 24 (elevation, 1,293.26 reet}; minimum, 1,800 acre-feet Sept. 28-30. 1941-43: Maximum contents, that of Jan. 24, 1943; minimum, that of Sept. 28-30, 1943. Remarks.- Reservoir Is formed by concrete arch dam; outlet closed on Dec. 6, 1941. Usable capacity, E6,000 acre-feet between elevations 1,2E0.3 feet (bottom of outlet pipe) and 1,301.0 feet (spillway crest) above mean sea level. Water diverted at dam into pipe line to small reservoir 10 miles below from which It is pumped to Camp San Luis Ottlspo for water supply; water is also released down natural channel of river. Records show usable contents at midnight-except Sept. 2-30 when contents are for 8 a.m. Contents, In acre-feet, water year October 1942 to September 1943 Day Oct. Nor. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 9,630 3,020 2,920 3,010 13,210 2,660 2,990 3,O30 3,120 3,160 2,730 a2,04O 2 9,000 3,O20 2,930 3,020 17,470 2,660 3,O10 3,030 3,130 3,150 2,690 2,030 3 8,370 3,010 2,920 3,030 16,650 2,690 3,030 3,030 3,140 3,140 2,650 2,020 4 7,780 3.0OO 2,910 3.O40 15,760 3,280 3.O30 3.03O 3,140 3,140 2,600 2,000 5 7,140 3,000 2,900 3,050 14,900 3,210 3,03O 3.O20 3,150 3, ISO 2,570 1,990 6 6,900 2,990 2,900 3,O40 14,100 3,100 3,020 3,020 3, ISO 3,120 2.53O 1,990 7 6,900 2,990 2,900 3,020 13,300 3,180 3,010 3,030 3,160 3,100 2,490 1,970 8 6,910 2,980 2,890 3,010 12,550 4,310 3,020 3,030 3,160 3,090 2,440 1,960 9 6,910 2,980 2,880 3,010 12,300 9,830 3,050 3,030 3,170 3,080 2,380 1,940 10 6,910 2,970 2,880 3,010 12,380 12,400 3,060 3,030 3,170 3,070 2,310 1,930 11 6,920 2,970 2,870 3,010 12,170 12,840 3,070 3,030 3,170 3,060 _ 1,930 12 6,920 2,960 E,S70 3,010 11,310 12,720 3,070 3,030 3,170 3,050 - 1,910 13 6,920 2,950 2,880 3,010 10,500 12,370 3,060 3,020 3,180 3,040 - 1,910 14 6,920 2,950 2,880 3,OOO 9,680 11,890 3,050 3,020 3,180 3,030 1,910 15 6,910 2,950 2,880 3,000 8,81O 11,310 3,040 3,020 3,190 3,020 - 1,900 16 6,910 2,950 2,880 2,990 7,980 10,730 3,020 3,020 3,190 3,010 _ 1,380 17 6,910 2,950 2,880 3,000 7,140 10,320 3,020 3,010 3,200 3,000 - 1,870 18 6,910 2,97O 2,880 2,99O 6,380 10,180 3,030 3,OEO 3,200 2,990 - 1,870 19 6,900 2,960 2,890 2,990 5,870 9,700 3,030 3,020 3,200 2,980 _ 1,860 20 6,900 2,960 2,900 3,000 5,180 9,120 3,030 3,030 3,200 2,970 - 1,860 21 6,890 S,950 2,910 5,610 4,580 8,490 3,030 3,040 ' 3,190 2,930 _ 1,850 22 6,780 2,960 2,920 11,500 4,200 7,870 3,030 3,05O 3,190 E.940 - 1,840 23 6,370 2,950 2,960 19,970 3,700 7,210 3,OEO 3,060 3,180 2,930 - 1,830 24 5,840 2,950 2,980 20,48O 3,270 6,570 3,010 3,060 3,180 2,920 - 1,610 25 5,350 2,940 2,990 20,200 2,770 5,980 3,000 3,070 3,180 2,910 - 1,810 26 4,990 2,930 3,010 20,090 2,640 5,360 3,OOO 3,O80 3,170 2,890 _ 1,810 27 4,530 2,930 3,O20 19,790 2,660 4,850 3,010 3,080 3,170 2,880 - 1,810 28 4,090 2,920 3,030 19,430 2,660 4,250 3,020 3,090 3,170 2,840 . 1,800 29 3,660 2,920 3,040 18,600 3,690 3,030 3,100 3,160 2,310 - 1,800 30 3,350 2,920 3,030 19,030 _ 3,130 3,030 3,110 5,160 2,780 - 1,800 31 3,120 - 3,020 18,790 - 2,950 - 3,120 - 2,760 a2,050 - a Ho gage-height record} contents interpolated. Monthly elevation and contents, water year. October 1942 to Septe-nber 1943 Change in contents Date Elevation Contents during month 3,120 -7,120 -200 Dec. 31...... 1,250.10 3.0EO +100 _ - -800 2,660 -16 ISO +290 +80 +40 2,760 -400 -710 1,243.01 1.800 -250 Water Year 1942-43 ...... -8,440 t Elevation at midnight except Sept. 30, mftiloh is at S a.m. Time basis; Pacific war time. To convert »«r time to standard time, subtract 1 hour. SALINAS RIVER BASIN 149 Sallnas River above Pilitas Creek, near Santa Margarita, Calif. Location.- Water-stage recorder and concrete control, lat. 35°21', long. 120°31', in MJt sec. 6, T. 30 S., R. 14 E., immediately upstream from Pilitas Creek and 6 miles southeast of Santa Margarita. Altitude of gage, about 1,150 feet (revised), unad justed. Drainage area.- 125 square miles. Records available.- July 1942 to September 194S. Extremes.- July 1942 to September 1943: Maximum discharge, 562 second-feet Jan. 28, 1943 ^gage height, 2.49 feet); minimum, 0.1 second-foot June 26 to July 2, 1943. Remarks.- Records good October to June, fair July to September. Flow regulated by saunas Reservoir (see p.148). Small amount of water diverted to Camp San Luis Obispo. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 300 65 4.0 7.5 554 49 39 11 0.7 0.1 11 1.6 2 300 4.0 4.0 C.O 554 36 39 11 .7 .1 12 2.3 S 300 9 4.0 .6 546 30 39 11 .7 1.0 14 2.3 4 300 8 4.0 .5 53 S 206 40 11 .7 1.0 14 2.3 5 300 6.5 4.0 .4 530 312 67 11 1.2 1.9 14 2.3 6 144 3.2 4.0 5 514 251 84 8.5 1.1 4.0 14 2.3 7 3.6 P.O 3.6 9 498 118 69 6 1.1 3.6 16 E.3 8 2.9 2.3 3.2 4.8 482 246 48 6.5 1.1 3.6 21 2.3 9 2.3 2.3 3.2 2.0 205 430 39 7 1.2 3.6 £5 2.3 10 2.3 2.0 3.2 1.8 1.5 475 36 7.5 1.2 4.0 25 2.3 11 2.6 2.0 2.3 1.8 123 475 36 8 1.3 4.0 20 2.3 12 2.3 1.8 .6 1.8 460 468 36 8 1.3 3.6 2.6 2.3 13 2.3 1.4 .4 1.8 452 468 35 8.5 1.2 3.6 2.3 2.0 14 2.3 1.6 .4 1.8 445 468 35 10 . 1.1 3.6 2.3 1.8 15 2.0 2.0 .3 1.8 438 452 35 11 1.1 3.6 2.3 1.8 16 2.0 £.0 .3 £.0 430 452 35 10 1.0 3.2 2.3 1.8 17 2.0 C.O .3 2.0 430 445 26 12 1.0 3.2 2.3 1.8 18 2.0 5.5 .3 1.4 415 43S 19 7.5 1.0 3.6 2.3 1.8 19 1.8 5 .3 .6 272 445 19 3.4 1.0 3.6 2.0 l.S 20 1.8 2 9 .3 .7 356 445 19 3.1 1.1 3.6 2.0 1.6 21 1.8 2*3 .3 105 344 43S 20 3.4 1.1 3.2 2.0 2.0 22 46 3.2 .3 370 339 438 20 2.5 1.0 3.2 £.0 2.0 23 175 3.2 .5 438 32S 430 SI .7 1.0 3.2 2.0 2.0 24 255 3.2 1.1 43S 317 408 21 .6 .7 3.2 2.0 E.O 25 229 3.2 .7 415 306 376 19 .6 .3 3.2 2.0 2.0 26 171 3.2 .5 408 142 363 13 .6 .1 3.2 2.0 2.0 27 217 4.0 .5 408 49 356 10 .7 .1 4.4 2.0 2.0 23 213 4.0 .4 338 49 344 11 .7 .1 11 2.0 2.0 29 209 4.0 .4 554 339 10 .7 .1 11 2.0 2.0 30 155 4.0 6 554 _ 328 11 .6 .1 11 2.0 2.0 31 110 - 11 554 - 156 .7 - 11 2.0 - Second- Runoff in Month foot-days Maximum Minimum Mean ao re-feet October...... 3,458.0 300 l.E5 112 6,860 November...... 164.8 65 1.4 5.49 327 December...... 64.4 11 2.08 128 Calendar year ...... January...... 4,631.3 554 .4 149 9,190 February...... 10,117.5 554 l.E 361 20,070 March...... f ...... 10,685 475 30 345 21,190 April ...... 951 84 10 31.7 1,890 May...... 185 E 12 .e 5.93 365 June ...... 25 .4 1.3 .] .85 50 July...... 126 !l 11 .] 4.07 £50 August ...... 228 4 25 2.C 7.37 453 September...... 6l!s i.e 2.05 122 Water year 1942-43 ...... 30, 697. E 554 .]L 84.1 60,900 Pacific war time. To convert war tine to standard time, subtract 1 hour. 150 SALINAS RIVER BASIN Sallnas River near Santa Margartta, Calif. Location.- water-stage recorder, lat. 35°24'20", long. 120°34'05", in r* sec. 15, T. 29 s., R. 13 E., 250 feet downstream from Calf Canyon highway bridge, ?.50 feet upstream from Morano Creek, and 2i miles northeast of Santa Margartta. Datmr of gage is 959.41 feet (revised) above mean sea level, datum of 1929. Drainage area.- 148 square miles. Records available.- April to September 1922, February 1932 to September 1943. Average discharge.- 11 years (1932-43), 59.7 second-feet. Extremes.- Maximum discharge during year, 2,440 second-feet Mar. 9 (gape height, 11.05 feet), from rating curve extended above 1,100 second-feet; minimum, 0.5 second-foot Dec. 16-23. 1932-43: Maximum discharge, 11,000 second-feet Feb. 11, 1938 (grge height} 17.0 feet), from rating curve extended above 3,000 second-feet on basis of velocity-area studies; no flow during several months of each year except 1942 and 1943. Remarlcs.- Records fair. Flow regulated by Sallnas Reservoir (see p. 148). Small amount of water diverted to Camp San Luis Obispo. Discharge, in second-feet, water year October 1942 to Septeabe^ 1943 Daj Oct. Nor. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 320 96 3.3 13 536 71 68 23 a4.5 2.1 11 1.7 2 320 9 3.3 5 515 61 68 23 a4.5 2.0 12 1.6 3 320 . 13 3.3 2.9 508 61 60 22 a4.5 1.9 14 l.S 4 318 13 3.0 2.1 501 290 57 21 4.4 2.1 14 l.S 5 310 11 3.0 1.9 49S 396 83 20 4.2 2.2 13 l.S fi 195 6.5 3.0 2.1 480 337 101 20 4.2 3.S 13 l.S 7 9 i 3.0 3.6 12 463 176 92 16 4.2 4.4 14 1.7 a 5.5 2.7 2.4 8.5 453 414 73 15 4.2 4.4 19 l.S 9 4.6 2.4 2.1 4.2 24S 1,310 59 15 4.2 4.4 26 1.9 10 4.2 2.1 2ll 3.6 12 1,010 57 14 4 «- 4.2 25 a.e n 4.2 2.1 2.1 3.6 81 720 53 14 4.4 4.4 25 1.8 i? 3.5 1.8 1.4 3.6 466 630 53 14 4.4 4.4 6.5 1.7 is 3.2 1.5 .8 3.6 466 590 53 13 4.4 4.9 2.6 1.6 14 2.S 1.2 .6 3.3 46S 566 53 13 4.2 5 2.6 1.6 15 2.8 .1.8 .6 3.3 456 646 51 13 3.8 4.7 E.S 1.6 16 2.S 1.6 .5 2.9 4'53 536 51 IS * 3.6 4.7' 2.6 1.6 17 2.6 1.8 .5 2.9 443 598 49 12 3.4 4.4 2.4 1.6 Iff 2.5 9 .5 2.9 430 614 42 11 3.6 4.E 2.4 1.6 19 2.5 11 .5 2.1 300 S40 39 8 3.2 4.4 2.2 1.5 20 2.3 4.5 .5 1.9 337 812 39 7.5 3.2 4.4 2.E 1.4 ?1 3.0 .5 .5 429 417 49S 37 r 3.4 4.2 2.1 1.4 22 21 3.6 .5 980 490 487 36 7 3.4 4.S 2.1 1.4 23 172 3.6 2.3 1,350 411 473 37 a4 3*2 4.0 2.1 1.5 24 267 3.3 S.5 470 384 453 36 a4 #.2 3.8 2.1 1.6 25 237 3.0 4.2 399 351 424 35 a4 3.0 3.6 2.0 1.9 2fi 180 2 7 1.9 417 214 402 30 a4.2 2.2 3.6 1.9 2.0 27 226 s.b 1.4 390 79 393 25 a4.5 2.0 3.6 1,9 2.0 28 230 3.0 1.2 300' 74 384 26 4.7 2.0 8.S 1.9 2.0 Kft 226 3.0 1.0 515 _ 372 26 at. 5 2.0 11 l.S 2.0 30 184 3.0 1.0 680 _ 363 23 a4.2 2.1 11 1.8 1.9 31 125 - 12 570 - 222 " 4.2 - 11 a.s * Seccnd- Runoff in Month fcct-days Maxima kinimua Mean acre-feet October 2 3 icd December...... 71.8 12 .5 8.31 142 Calendar year 1942 ...... 10,087.5 334 .5 27.6 20,000 on A 19 gQ ogQ March...... oo ftstn Q QQQ Bay...... 358 8 September...... 51,4 2.0 1.4 1.71 102 Water year 1942-43 ...... 38,020.0 1,350 .5 104 76,410 a Ho gage-height record; discharge computed on basis of record above Pilitai Creek, three staff readings, and recorded range in stage. Time basis; Pacific war time. To convert war time to-standard time, subtract 1 hour. SALINAS RIVEK BASIN 151 Salinas River at Paso Robles, Calif. Location.- Wire-weight gage, lat. 35°37'40", long. 120°41'05B , at bridge on State Highway 41 In Paso Robles, 3| miles upstream from Huerhuero Creek. Datum of gage Is 670.61 feet above mean sea'level (levels by Corps of Engineers, U. S. Army). Drainage area.- 389 square miles. Records available,.- October 1939 to September 1943. Extremes.- Maximum discharge during year, 14,200 second-feet Mar. 9 (gage height, 16.2 feet), from rating curve extended above 6,000 second-feet on basis of velocity-area studies and logarithmic plotting; no flow July 9 to Sept. 30. 1939-43: Maximum discharge that of Mar. 9, 1943; no flow during several months In each year. Maximum stage known, 16.9 feet during flood of Feb. 10-13, 1938. Remarks.- Records good. Gage read twice daily with additional readings during periods of high water. Snail diversion above gage. Flow regulated at Salinas Reservoir (see p.148). Revisions.- Revised figures of discharge, in second-feet, for several days In September superseding those published In Water-supply Paper 961, are given herein: Sept. 23...... 6.5 27. .112 24...... 78 28. .128 25...... 101 29. .173 26...... 109 30. .256 Second-foot- Runoff Month days Maximum Minimum Mean in "o acre-feet September ...... 1,321.3 256 44.0 2,620 Water year 1941-42,. ...;.... 43,256.7 3,220 0 119 85, TIT) Discharge, in second-feet.' water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 10' 1 292 127 33 1,300 337 396 83 1817' 2.8 2 288 102 10 31 1,150 325 293 88 2.8 3 288 56 10 31 1,080 292 276 83 15 1.5 4 288 39 10 27 954 560 260 78 14 1 5 288 31 10 27 930 1,390 252 78 14 1 6 278 26 12 25 9E2 1,390 302 78 14 1 7 158 24 11 23 874 946 ?68 67 13 1 8 61 19 11 £3 850 2,860 256 63 11 .5 9 41 17 11 23 810 j. 0,500 225 59 11 0 10 32 16 10 23 452 6,420 206 57 11 0 ' 11 11 26 16 10 23 325 2,990 20k; 56 0 12 £3 14 10 22 3S5 1,790 177 52 14 0 13 20 12 10 21 650 1,350 163 49 18- 0 14 18 11 10 21 636 1,120 163 48 17 0 15 17 11 10 21 615 989 156 45 12 0 16 14 11 10 22 615 934 163 48 dlO 0 17 12 11 10 22 594 989 153 44 d8 0 18 10 48 10 22 573 1,680 150 41 6 0 19 9 84 10 20 552 1,490 139 40 3.8 0 20 8.5 3d 10 21 478 1,240 130 38 5 0 21 7.5 26 10 351 545 1,100 124 So 5 0 22 7 25 10 6,030 1,060 1,030 118 30 3.8 0 23 6 19 17 6,500 946 943 112 27 3.8 0 24 63 17 380 2,580 970 854 106 26 3.4 0 25 185 14 314 1,320 850 812 112 23 4.4 0 26 196 13 149 1,490 7?2 778 112 d22 t 4.0 0 27 170 12 75 1,100 471 7£7 109 d21 3.8 0 28 220 11 54 850 373 710 106 d21 3.4 0 29 204 10 46 770 - 665 101 d20 2.8 0 30 212 10 39 2,540 - 665 90 d!9 2.8 0 31 377 - 36 2,260 - 600 - d!8 ~ 0 Second- Ruroff in Month foot-clays Maximum Minimum Mean acre-feet October...... 3,619.0 292 6 117 7,180 November...... 868 127 10 " 28.9 1,720 December...... 1,335 380 10 13.1 2,650 Calendar year 1942 ...... 39,918.1 3,030 0 109 79,170 January...... 26,272 6,500 20 847 52,110 February...... 20,682 1,300 325 739 41,020 March...... 48,476 10,500 292 1,564 96,150 April ...... 5,420 396 90 181 10,750 May...... 1,451 88 18 46.8 2,880 June ...... 280.0 18 2.8 9.33 555 July 11.6 2 . o0 0 .37 23 August...... 0 0 0 0 0 September...... 0 0 0 0 0 Water year 1942-43 ...... 108,414.6 10,500 0 297 215,000 d Doubtful gage-height record} discharge Interpolated. Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour. 152 SAUNAS RIVER BASIN Salinas River near Spreckels, Calif. Location.- Water-stage recorder and wire weight gage, lat. se^V'SO", long. 121°40'40", In El Toro Grant, at bridge on Sallnas-Monterey highway, half a mile upstream from Toro Creek, 2 miles west of Spreckels, Monterey County, and 4 miles south of Salinas. Datura of gage Is 22.64 feet above mean sea level, adjustment of 1912. Drainage area.- 4,231 square miles. Records available.- January 1900 to August 1901, December 1929 to September 1943. Average discharge.- 13 years (1930-43), 741 second-feet. Extremes.- Maximum discharge during year, 42,800 second-feet Jan. 22 (gage height, 18.95 feet}, from rating curve extended above 3,400 second-feet on basis of previous curve; minimum observed, 0.9 second-foot Sept. 17. 1929-45: Maximum discharge, 75,000 second-feet Feb. 12, 1938 (gage height, 25.0 feet), from rating curve extended above 25,800 second-feet on bas*s of velocity-area studies, verified by slope-area determination: no flow at times during period 1929-40! Maximum stage known, 26.6 feet mr. V, 1911, as indicated at oil pumping station opposite gage (discharge not determined). Remarks.- Records good between 10 and 10,000 second^-feet, fair below and above. 3nall diversions above station for Irrigation. Discharge, 111 second-feet, water year October 1942 to Septemt or 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. 4pr. May June July Aug. Sept. 1 8 14 16 312 6,140 1,920 ' 1,623 322 46 5.5 1.6 1.2 2 8 12 16 267 4.32C 1,650 1,740 316 40 5 al.5 1.2 3 7.5 14 16 223 3,400 1,460 1,560 308 36 5.5 1.4 1.3 4 8 14 16 202 2.60C 1,570 1,390 285 31 6 1.4 2.6 5 8 14 16 180 2,300 2,130 1,330 264 28 6.5 1.4 3.0 6 8.5 14 18 172 8,120 5,940 1,240 250 25 7.5 1.4 3.4 7 8.5 15 18 157 1,88C 5,230 1,210 233 23 8 1.6 3.S 8 8.5 15 17 142 1,B3C 4,140 1,270 216 20 8 1.7 3.4 9 9.5 16 16 132 1.51C 10,100 1,250 203 20 7.5 1.3 3.4 10 10 16 18 121 1,350 29,600 1,150 192 17 7 1.4 3.0 11 12 16 18 112 1,230 21,400 1,120 176 16 6.5 1.4 2.6 1? 10 16 17 104 1,050 10,800 1,040 164 16 6 1.6 2.6 13 9. .5 18 18 97 880 7,490 978 162 13 6 1.3 2.6 14 10 18 18 91 84C 5,670 919 15S 11 6 1.4 1.3 , 15 11 19 18 89 960 4,800 832 14-E 10 6.5 , 1-4 1.7 IB 10 17 16 86 1,040 4,260 760 128 «9 6.5 1.2 1.3 17 11 19 18 Bl 1.01C 3,900 700 123 ' 8.5 e 1.3 1*0 18 12 21 IS 70 94-! 3,970 650 114 8.5 6 . 1.2 1.0 19 IE 20 17 60 872 6,470 '610 107 7.5 5.5 1.2 1.2 20 12 16 16 63 808 4,600 566 105 6.5 S.5 1.3 1.3 ?.l 13 15 18 105 776 3,690 544 93 6.5 5 1.2 1.4 2?. 14 15 18 23,000 B72 3,220 510 88 6 4.3 1.4 1.6 ftt IB 15 21 25,600 1.99C 3,120 4S2 82 7 4.3 1.4 2.6 PA 15 15 25 27,600 3,94C 2,810 458 74 6.5 5.8 1.2 3.8 25 15 15 24 10,000 2,700 2,630 422 70 6.8 3.8 1.4 4.7 26 15 15 17 6,060 2,560 2,380 393 70 5.5 3.4 1.4 4.7 ?7 16 18 73 .5,470 2.40C 2,280 379 65 * 5 3.0 1.6 5.5 28 22 16 1,050 *5,160 2,05C 2,170 393 61 ,6.6 E.6 1.6 5.5 29 16 16 754 4,370 - 2,020 360 5£ 5.5 S.I 1.4 5.5 30 14 16 494 3,840 - 1,900 341 48 5.5 2.1 1.3 4.7 31 14 - 380 6,080 - 1,790 - 46 " 1.7 1.2 " Second- Runoff in Month foot-days Haxiffiust Minimum Mean aert-feet 362.0 7.5 11.7 052 December...... "...... 3,215 1,050 16 104 6,380 Calendar year 194E ...... 236,559.0 18,000 3.8 648 469,300 60 3,872 54,372 6,140 776 1,942 107, 600 1,460 8,328861' 26,427 46 ~ 52,420 4,723 322 152 9,370 5 1.7 5.26 1.2 1.39 September...... BE. 9 5.5 1.0 2.76 164 Water year 1942-43 ...... 375,475.6 29,600 1.0 1,029 744,760 Peak disefcflrse.- Jan. 32 (8:30 n.m.) 42.8OO see. -ft.: Jan. 24 (3 a.m.) 35,400 sec. -ft.; Jan. 33. (4 p.m.) 9,320 sec.-ft.; Her. 6 (3 a.m.) 7,250 aeo.-ft.; Mar. 10 (12 m. } 35,4£*> sec.-ft.; Mar. 19 (10:30 a.m.) 9,940 sec.-ft. a Ho gage-height record; discharge interpolated. Time baals; Pacific war time. To convert war time to standard time, subtract 1 hour. SLLINAS RIVER BLSIN 153 Toro Creek near Pozo, Calif. Location.- Water-stage recorder and 90° V-notcn weir, lat. 35°20', long. 120°25', In sec. 12, T. 30 B., R. 14 E., Immediately'upstream from mouth and 3 miles northwest of Pozo. Altitude of gage,, about 1,310 feet (from topographic map). Drainage area.- 9.5 square miles. Records available.- June. 194S to November 1943 (low-water records only}. Extremes.- June to November 1942: Minimum discharge, 0.19 second-foot (regulate-?) Aug. 7 and Oct. 3. July to November 1943: Minimum discharge, 0.37 second-foot (regulated) Sept. 20. ~ Records good. Flow regulated by swimming pool above station. Discharge, in aeeond-feet, 1942-43 1942 1943 June July Aug. Sept. Oct. Nov. July Aug. Sept. Oct. Nov. 1 _ 1.01 -0.90 0.97 0.84 0.94 1.20 Q.94 0.80 0.97 1 24 a 1.01 .87 .97 .80 .94 1.16 .94 .84 1.01 1 24 3 _ .67 .87 .94 .67 1.04 1.12 .87 .94 1.04 1 24 4 _ .65 .84 .94 .80 1.04 1.07 .97 .94 1.01 1 24 5 - .94 .80 .90 .80 1.01 1.20 .84 .87 1.01 1 28 6 _ .94 .80 .84 .84 1.04 1.10 .87 .90 1.01 1 .34 7 _ .90 i .64 .87 .84 1.04 1.12 .94 .74 1.01 1 24 8 .. .90 .74 .90 .80 1.04 1,04 .90 .94 1.08 1 24 9 _ .90 .84 .90 .90 1.01 1.08 .90 1.01 1.12 1 .28 10 - .90 .90 .90 .83 1.01 1.04 .90 .94 1.08 1 .32 11 _ .90 .84 .90 .80 1.01 .97 .90 .97 1.12 .32 12 _ .90 .80 .87 .80 1.01 1.01 .87 .97 1.02 36 13 _ .90 .74 .84 .80 1.01 1.04 .87 .90 1.12 .36 14 _ .90 .68 .80 .80 .90 1.08 .87 .94 1.12 .36 15 - .90 .66 .80 .80 .90 al.12 .87 .97 1.12 36 16 1.28 .94 .80 - .77 .80 .97 1.16 .90 1.01 -.91 1 .45 17 1.24 ,90 .72 .87 .80 1.01 1.12 .90 1.01 1.08 1 41 18 1.20 .90 .68 .90 .80 1.52 1.12 .90 .97 1.52 19 1.20 .90 .71 .87 .80 1.24 1.12 .84 .94 1.28 20 1.16 .90 .71 .84 .80 1.12 1.16 a. 84 .88 1.32 21 .94 .90 .71 .80 .77 1.08 1.14 a. 84 .94 1.28 22 1.20 .72 .71 .80 .74 1.08 1.12 a. 84 .94 1.28 23 1.16 .49 .71 .80 .74 1.12 1.04 a. 64 .94 1.24 24 1.12 .BO .84 .84 .60 1.08 1.01 a. 84 .90 1.20 25 1.16 .84 .84 .87 .84 1.08 1.01 a. 84 .90 1.24 26 1.12 .80 .84 .84 .90 _ .94 a. 84 1.01 1.28 27 1.12 .70 .84 .84 .90 _ .97 .84 1.01 1.36 28 1.01 .84 .87 .87 .94 _ .96 .84 1.01 1.28 - 29 .94 .94 .87 .84 .90 _ .90 .84 .97 1.28 30 1.01 .90 .87 .84 .90 _ .97 .9C .97 1.28 31 - .90 .90 - .87 - ,90 .94 - 1.24 Runoff in Month foo^ «**-<« Minimum Mean acre-feet 0 94 1 IS 48.7 25 93 97 25 42 94 26.04 1.32 .90 1.04 51.6 The period...... _ _ _ _ 288 j 32 99 1 20 £>7 P"^ 97 22.18 1.45 1.24 1.30 44.0 _ - - 390 _ No gage-height record; discharge interpolated. Note.- Result of discharge measurement, 3.7 second-feet, Jan. 30, 1943; 2.2 second-feet, Apr. 23, Time basis: Pacific war time. To convert war time to standard time, subtract 1 hour. 154 SALINAS RIVER BASIN Santa Margarita Creek near Santa Margarita, Calif. Location.- Mater-stage recorder and 90° V-notch weir, lat. 35°23', long. 120°39', In Santa Margarlta Grant, Immediately upstream from mouth and 2.5 miles southwest of Santa Margarita, San Luls Oblspo County. Altitude of gage, about 1,050 feet (from topographic map). Drainage area.- 2.4 square miles. Records available.- June 1942 to November 1943 (low-water records only). Extremes.- June to November 1942: Minimum discharge, less than 0.01 second-foot Sept. 16. TJuTy to November 1943: No flow aept. 23. Remarks.- Records good. No diversion. Discharge, In second-feet, 1942-43 1942 19^5 Day June July Aug. Sept. Oct. Hov. July Aug. S-?pt. Oct. Nov. 1 _ 0.4S 0.15 0.09 aO.02 0.05 0.36 0.12 0.01 0.02 0.08 - .41 .14 .09 .02 .04 .36 .12 .01 .03 .07 3 _ .41 .13 .07 .02 .06 .34 .12 .01 .02 .06 4 - .41 .11 .07 .02 .07 .32 .11 .01 .02 .06 5 - .99 .10 .07 .02 .07 .30 .11 .01 .01 .07 _ 6 .37 .10 .'05.05 .02 .07 .30 .11 .01 .01 .07 7 _ .35 .10 .02 .07 .28 .11 .01 .01 .07 8 _ .33 .08 .05 .02 .07 .26 .08 .03 .03 .07 9 - .33 .09 .06 .02 .06 .24 .07 .05 .04 .07 10 - .33 .12 .06 .06 .06 .24 .07 .03 .08 .07 11 . .31 .10 .06 .09 .06 .24 .07 .04 .02 .07 12 . .30 .OS .04 .07 .05 .28 .06 .03 .02 .08 13 0.80 .28 .08 .03 .05 .05 .26 .05 .02 .01 .09 14 .80 .28 .08 .02 .04 .05 .28 .06 .03 .01 .09 16 -.77 .26 .08 .01 .04 .14 .28 .07 .03 .01 .06 16 a. 74 .28 .06 .01 .03 .10 .28 .06 .02 .01 .09 17 a. 70 .98 .05 .04 .03 .26 .05 .02 .01 .10 18 a. 66 .26 .04 .06 .02 _ .28 .05 .01 .05 .10 19 a. S3 .96 .03 .04 .02 _ .26 .05 .01 .06 20 .60 .25 .04 .03 .02 - .26 .04 .01 .08 - 21 .58 .25 .03 .02 .01 _ .24 .04 0. .10 _ 22 .55 .21 .03 .01 .01 _ .23 .05 0. .07 _ 23 .55 .IS .03 .01 .01 _ .21 .05 0. .06 _ 24 .55 .17 .05 .01 .03 _ .20 -.06 0. .04 _ 25 - - .53 .18 .08 .03 .04 , .18 .05 .02 .05 26 .58 .19 .08 .03 .04 _ .17 .04 .03 .09 _ 27 .52 .91 .07 .03 .05 _ .15 .03 .02 .23 _ 28 .50 .21 .06 .02 .09 _ .14 .02 .03 .14 _ 29 .48 .90 .07 .02 .08 _ .13 .02 .03 .12 - 30 .48 .18 .07 .03 .07 .. .13 .02 .02 .10 _ 31 .16 .08 .06 - .11 .02 .08 - Month Second- Mailman Minimum Muan Runoff in foot-days acre-feet 32.0 .279 17.2 2.38 2.ES 1.07 .14 .04 ,067 £.12 _ _ ' 50.7 15.1 3.93 1.09 3.21 November 1-18...... 1.40 .10 .06 .078 2.78 The peri - - 26.1 a Ho gage-height record; discharge interpolated. Vote.- Discharge Sept. 21-24, 1943, leas than 0.005 second-foot. Time' basis; Pacific war time. To convert war tin* to standard time, subtract 1 hour. SAUNAS RIVER BASIN 158 Tassajera Creek near Santa Margarlta, Calif. Location.- Water-stage recorder and 90° V-notch weir, lat. 35°23', long. 120°39', In santa rtargarita Grant, immediately above confluence with Santa Margarlta Creek and 2.5imlles southwest of Santa Margarlta, San Luls Oblspo County. Altitude of gaTe, about 1,060 feet (from topographic map). Drainage area;- 4.4 square miles. Records available.- June 1942 to November 1943 (low-water records only). Extremes .- June to November 1942: Minimum discharge, less than 0.01 second-foot, Aug. 20. June to November 1943 t no flow Aug. 31, Sept. 1, 2, 21-25. RemarteB.- Records good for 1942 and excellent for 1943. No large diversions. Discharge, In second-feet, 1942-43 19443 1943 pay June July Aug. Sept. Oct. Bov. June July Attg. Sept. Oct. HOT. 1 0.78 0.30 0.30 0.10 0.22 0.66 0.08 0. 0.03 0.23 2 .68 .30 .32 .09 .21 .63 .10 .01 .05 .23 3 .77 .19 .30 .09 .27 .55 .10 .01 .05 .21 4 .85 .15 .29 .09 .31 .50 .13 .02 .03 .20 5 .74 .23 .24 .08 .26 .47 .10 .02 .01 .21 .66' 6 .22 .20 .07 .29 .42 .11 ,01 a.Ol 7 .63 .18 .17 .08 .28 .38 .13 .02 a. 02 8 .51 .17 .19 .09 .27 .36 .11 .06 a. 04 9 .53 .19 .24 .15 .26 .32 .07 .10 a. 06 ID .62 .SI .24 .89 .26 .32 .06 .09 .08 11 .55 .26 .23 .31 .25 .34 .08 .10 .07 12 .54 .17 .IS .30 .24 .38 .07 .06 .07 13 .52 .14 .13 .24 .24 .40 .04 .04 .03 14 .49 .16 .09 .20 .24 .47 .04 .05 .05 15 .48 .17 .08 .20 .47 .47 .04 .06 .04 16 .42 .14 .07 .20 .36 .47 .04 .05 .05 17 1.36 .46 .11 .19 .17 .50 .05 .02 .05 18 1.28 .45 .04 .27 .14 .45 .07 .02 .28 19 1.16 .48 .03 .81 .12 .42 .08 .02 .24 20 1.16 .44 .05 .86 .11 .42 .07 .01 .28 21 1.04 .42 .06 .11 .10 .40 .08 0 .34 22 l.Ol .38 .06 .08 .09 .36 .08 0 .24 23 1.04 .SO ,06 .07 .14 .32 1.04 .07 0 .20 24 .30 .12 .12 .23 .32 .12 0 .15 25 1.08 .21 .22 .17 .24 .32 .11 .04 .17 26 1.04 .25 .22 .17 .24 .22 .07 .09 .21 27 .97 .40 .22 .20 .22 0.55 .14 .05 .07 .68 28 .92 .42 .20 .16 .39 .52 .14 .04 .10 .36 29 .88 .39 .27 .15 .34 .60 .14 .03 .10 .32 30 .85 .36 .23 .12 .28 .66 .12 .03 .04 .32 31 .33 .26 .85 .10 0 .24 Seoond- Runoff in Month foot-days Maximum Minimum Mean acre-feet June 17-30, 14.83 1.36 0.85 1.06 29.4 Julj 15.36 .85 .31 ' .495 30.5 Augu 5.43 .31 .03 .175 10.8 Sept 5.65 .32 .07 .188 11.8 Oo to 5.64 .39 .07 .182 11.2 Hove 4.45 .47 .21 .278 8.83 Th _ _ _ _ 102 June 27-50, 2.53 .66 .52 .582 4.62 Julj 11.51 .66 .10 .371 22.8 Augu 2.25 .13 0 .073 4.46 Sept 1.21 .10 0 .040 2.40 Oeto 4.67 .58 .01 .151 9.26 Hovember 1-5 1.08 .23 . .20 .216 2.14 The period . - - - 45.7 . a Ho gage-height record; discharge computed on basis of records for Santa Hargarita Creek near Santa Hargarita. Time basis; Pacific war tine. To convert war time to standard time, subtract 1 hour. 156 SALINAS RIVER BASIN Naclmlento River near San Mlguel, Calif. Location.- Water-stage recorder and concrete control, lat. 35°47'00", long. 120°47'24". In SEt sec. 4, T. 25 S., R. 11 E., 4 miles upstream from mouth and 5.5 miles northwest of San Mlguel. Datum of gage, 555.48 feet above mean sea level (levels by Corps of Engineers, U. S. Army). Drainage area.- 354 square miles. Records available.- October 1939 to September 1943. ' Extremes.- Maximum discharge during year, 50,800 second-feet Jan. 21 (gage height, 10.45 reet), from rating curve extended above 17,000 second-feet on basis of logarithmic plotting; minimum not determined 1939-43: Maximum discharge, that of Jan. 21, 1943; no flow for several months In each year except possibly 1942 and 1943. Remarks.- Records fair. No large diversions. Rating tables, water year 1942-43 {gage height, In feet, and discharge, in second-feet) (Shifting-control method used Apr. 27 to May 27) Hov. 18 to Jan. 21 Jan. £2 to July 12 0.2 7 O.S 267 1.8 1,330 4.5 7,000 0.0 0.8 C.3 27 1.0 445 .3 27 .9 341 2.0 1,630 6.0 8,300 .1 2.1 60 1.8 630 54 1.0 422 2.6 2,460 5.7 11,800 .15 3.7 .5, 106 1.5 950 94 1.2 608 3.0 3,400 6.4 15,200 ,2 7.5 .6' 162 1.9 1,4SO 144 1.4 S20 3.6 4,460 .25 16 .8 290 .7 2O3 1.6 1,060 4.O 5,620 Note.- Same ss preceding table above i.w reet. Discharge, In seccnd-feet. water year October 1942 to September 1943 Day Oct. Ncv. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 22 S2 1,350 517 350 106 27 4.2 2 20 70 1,010 464 320 97 24 3.7 3 20 62 785 445 298 92 22 3.7 4 17 54 62O 3,890 8S3 88 22 3.7 5 17 51 517 2.73O 283 76 20 3.2 6 17 49 437 2,480 320 7S 20 3.2 7 17 46 381 1,690 270 74 20 2.8 8 20 43 389 3,980 256 65 20 2.8 9 > aO.l 27 40 373 9,52O 836 60 IS 2.5 10 27 38 328 10,000 823 60 18 e.5 11 24 35 290 3,870 811 67 16 8.5 12 22 35 863 2,430 80S 67 16 8.3 13 20 32 236 1,790 199 SS 14 14 2O 38 817 1,480 186 50 14 15 17 30 199 1,190 180 47 14 ' aO.E > al.O aO.5 16 17 30 J.S6 960 168 47'47 14 17 15 27 174 1,130 168 12 JL9Ifl 308 15 24 174 3,740 168 47 10 19 754 13 24 156 1,760 161 44 10 20 235 13 24 145 1,310 140 44 8.5 21 124 13 15,000 239 1,080 140 40 . 7.5 > a8/0 22 78 13 13,400 3,280 962 134 40 6.5 23 54 20 9,620 1,870 362 128 37 6.6 24 46 1,090 3,070 1,210 763 12S 34 5.5 25 35 1,150 1,600 917 680 123 30 5.5 26 32 541 2,320 741 611 112 27 5.5 27 30 282 1,900 752 554 112 87 5.5 28 87 191 1,150 602 499 112 87 4.S OQ 28 - IKS 144 862 454 140 87 4,8 ffl 22 114 3,910 _ 554 188 87 4.S OU " 31 94 2,220 ~ 405 87 - - Seoond- Runoff in Month fcot-days Maximum Minimum **_ ao re-feet - October...... 6.8 _ O.SL 12 November...... 1,768.7 754 _ 59.0 3,510 December...... 4,038 1,160 13 130 8,000 Calendar year 1948 ...... 103,151.3 16,800 _ 883 804,600 January...... ^...... 55,880 15,000 84 1.803 110,800 Febr_iiarv...... 17,841 3,880 145 637 36,590 March...... 62,120 10,000 405 S y WvroftM 183,800 5,S66 360 118 196 11,640 MftV 1,634 106 87 52. 7 3,240 June ...... 396.4 87 4.8 13.8 786 July...... 75.1 4.2 £ 42 149 August ...... 31.0. _ 1.0 61 September...... 15.0 - - .6 80 rater year 1942-43 ...... 149,665.4 15,000 - ^ 410 896,800 Peat discharge.- Jan. 21 (11 p.m.) 50,800 sec.-ft.j Bap. 10 (8i30 a.m.> 14,600 eeci-ft. a Ho gage-Height record; discharge computed en basis cf four discharge meas-irementa. Time baa is; Pacific war time. To convert war time to standard time, subtract 1 hour. SAUNAS RIVER BASIN 157 San Antonio River at Pleyto, Calif. Location.- Water-stage recorder, lat. 35°51 1 55lt , long. 120°59'30", in Pleyto Grant, at highway bridge at old town site of Pleyto, Monterey County, 1.1 miles downstream from Copperhead Creek and 15 miles west of Bradley. Altitude of gage, about 720 feet (from topographic map). Drainage area.- 282 square miles. Records available.- April to September 1922, December 1929 to September 1943. Average discharge.- 13 years (1930-43), 11? second-feet. Extremes.- Maximum discharge during year, 11,000 second-feet Jan. 22 (gage height, 5.54 reetj. from rating curve extended above 8,000 second-feet; minimum not determined. 1929-43: Maximum discharge, 11,400 second-feet Feb. 11, 1941 (gage height, 5,58 feet); no flow for several months each year except possibly 1942 and 1943. Remarks.- Records fair except those above 3,000 second-feet, which are poor, Small diversions above station for irrigation. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 1.1 85 530 844 212 79 27 ' 2.0 2 1.1 83 415 888 208 79 25 2.0 3 1.1 83 384 804 200 9S 24 2.0 4 1.1 81 306 566 1S5 90 25 1.7 5 1.1 80 292 580 1S1 76 22 1.7 6 1.4 IS 870 506 161 71 32 1.7 7 1.1 17 248 437 174 69 21 1.5 8 1.0 15 24S 506 163 64 IS 1.5 9 1.0 14 220 1,300 160 62 IS 1.2 10 .S 14 193 1,450 153 57 IS 1.0 11 .8 13 174 1,000 153 50 17 1.0 12 .e 18 178 790 146 50 17 1.0 13 .6 18 156 644 139 43 17 1.0 14 .6 18 133 636 156 41 17 1.0 15 .6 18 130 471 133 41 16 .9 ' 0.5 > 0.2 > 0.2 16 .e 18 117 431 126 41 14 .9 17 1.7 N 11 180 437 120 39 13 .9 18 1.0 3.4 10 117 975 123 39 10 .S 19 1.5 3.8 10 98 632 110 39 9 ,8 20 1.4 4.7 11 96 486 98 36 7.5 ,8 21 1.3 S.5 1,470 180 465 98 34 6 .7 22 1.3 6 4,330 306 437 90 33 5 .7 AOo* 1.2 9 5,100 368 448 90 33 4.1 .6 24 1.2 11 1,870 898 37S 93 32 3.5 .6 25 1.8 48 769 848 333 110 33 2,9 .6 26 1.2 103 748 840 315 104 33 2.6 .5 27 1.8 69 790 844 288 101 33 2.3 .5 28 1.8 47 573 840 879 98 32 2.3 .5 29' 1.1 3S 44S 24S 9S 30 2.0 ,4 30 1.1 32 729 _ 852 67 29 2.0 .4 31 "" 87 690 224 28 ~ .4 " Seoond- Runoff in Month foot-days Maximum Minimum Mean acre-feet October...... 15.5 _ _ 0.5 31 Movenber...... 89.4 1.5 .98 58 Deoenber...... 424.1 103 0.6 13.7 S41 Calendar year 1942 ...... 40,851.4 3,790 - 110 79,S50 January 17,222 6,100 10 566 34,160 February...... 6,423 630 96 229 12,740 March...... 16,092 1,450 204 519 31,920 April ...... 4,070 212 87 136 S,070 May...... 1,514 98 28 48.8 3,OOO June...... 388.2 27 2.0 12.9 770 July...... 31.3 2.0 .4 1.01 62 August...... 6.2 ,2 12 September, ...... 6.0 - - .2 12 Water year 1942-43 ...... 46,221.7 5,100 - 127 91,880 Peak discharge.- Jan. 22 {4r30 a.m.) 11,000 sec.-ft.; Har. 9 (1 p.m.) 1,810 sec.-ft.; Mar. 18 (4 a.m.) 1,410 sec.-ft. lote.- Doubtful gage-height record Oct. 1 to Hov. 24, July 15 to Sept. SO; discharge computed on basis of six discharge measurements and trend of gage-height record. Time hasisi Pacific war time. To convert war tine to standard time, subtract 1 hour. 158 SAUNAS RIVER BASIN Arroyo Seco near Soledad, Calif. Location.- Water-stage recorder, lat. 36°16'50", long. 121°19'20", In sec. 16, T. 19 s., R. 6 E., li miles downstream from Vaquero Creek and 10 mile" south of Soledad. Datum of gage Is 344.20 feet above mean sea level (Corps of Engineers, U. S. Army, bench mark). Drainage area.- 241 square miles. Records available.- November 1901 to September 1943. Average discharge.- 41 years (1902-43), 185 second-feet. Extremes.- Muclmum discharge during year, 16,100 second-feet Jan. 21 (gage height, H.CPO feet); minimum, 1.2 second-feet Sept. 22, 23. 1901-43: mxlmum discharge observed, about 22,000 second-fert Feb. 21, 1917, Nov. 25, 1926 (gage height, 16.5 feet, site and datum then In use), from rating curve extended above 7,500 second-feet; no flow at times during several years. Remarks.- Records good December to July, fair remainder of year. No large diversions above station. Discharge, in second-fe«t, water year October 1948 to Septemlor 1943 Day Oct. NOT. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 9.5 16 56 62 662 S64 29S 124 54 28 6.5 3.3 2 9.5 15 SB 58 620 530 276 119 56 27 6 3.3 3 8 16 54 55 451 S70 262 115 52 26 5.5 3.2 4 7 16 54 55 570 898 246 112 52 34 5.5 3.2 5 7 18 SS 51 SSS 1,030 257 110 46 25 s.e 3.7 6 6,6 IS 54 46 298 1,140 267 105 46 22 5.5 2.7 7 6.5 18 45 46 err 866 2SS 102 47 20 6 2.7 8 6.5 IS 45 46 285 1,000 229 96 45 20 6 2.8 9 6.5 18 38 43 282 8,120 222 91 44 18 6 2.S 10 6.5 IS 56 42 240 1,760 212 60 44 18 5.5 2.S 11 8.5 17 56 41 228 1,500 205 36 42 16 e.s 2.S 12 11 16 55 40 214 1,O40 199 85 44 16 5.5 3.0 13 IS 16 55 56 203 866 160 SI 44 16 5 5,0 14 IS .16 54 58 194 751 1SS 79 44 16 4.6 S.O 15 IS 16 SS 57 188 647 177 79 41 16 4.8 3.0 18 18 18 89 57 179 657 175 79 38 16 4.8 2.6 17 18 22 82 56 181 966 166 79 ' 36 16 ' 4.6 2.8 18 11 683 52 55 171 1,250 162 79 33 4.3 2.7 19 10 257 88 36 164 872 158 76 32 14 4.0 2,4 20 e.5 134 52 37 168 718 155 73 32 14 4.0 2.1 .21 S.5 90 88 5,420 242 651 147 70 52 14 S.S 1.7 8.5 70 82 5,400 668 672 141 66 SS 14 5.5 1.5 6 61 SS 3,540 658 507 158 62 52 IS 5.5 1.4 24 9.5 54 175 1,400 424 462 152 60 31 IS 4.0 1.5 26 10 46 294 878 558 420 150 58 SO 12 4.2 l.S 26 11 44 168 746 460 sei 128 67 29 11 4.5 O g 27 ie 41 114 712 494 567 128 57 28 10 4.7 2.*4 26 15 41 95 538 412 S46 131 57 27 9,5 4.2 2.7 29 ao 59 80 486 342 149 66 26 8.5 4.5 3,2 30 80 87 71 1,250 564 152 54 20 8 4.7 3.2 31 17 65 878 510 " 55 7 5.8 < Seoond- i>t i. .1^.1^ ifc&MM fam0*f £n Nonth fcot-days MaxiMM Minim Mean MM_te8t Dole bet...... 387 20 6.6 10.6 646 NOVA toer...... 1,891 688 IB *5.0 5,750 DeoeBber...... 1,849 294 32 69.6 3,670 Calendar year 1648 76,342.0 4,070 6.6 809 351,4OO Janu ary 20,106 5,420 36 646 56,880 Febr 6,154 668 158 326 18,120 Marc 25,514 2,120 S10 75V 46,640 Apri 5,667 295 126 189 11,240 2,608 124 55 80.9 4,670 June 1,171 56 26 S6.0 2,520 July 600.0 27 7 16.1 992 Augu 160.6 6.5 5.5 4.86 899 September...... 78.7 3.5 1.4 2.C8 166 Water year 1648-43 ...... 66,866.5 6,420 1.4 185 138,700 F«*k dlaeb*ra.» J a. 21 (8tSO p.m.) 10,100 ee.-ft.f f**. 88 (ItSO «.«.S »,TOO *M.-ft.] J«n. SO {stsrir^fxiw *9. -ft.; Hu>. 5 (6 p.».) 1,510 »**.«ft,f «up. V (T «.»,) 2,780 MV.-ft.t Map, 17 (10 P.B.) 8,000 eee. ISmf bMl»i P«elf Le «HP tfew. _T« oonrwrt MOF tte» fc* atoaou* th»* «*%» »» 1 bo«r. PAJARO RIVER BASIN 159 Pajaro River near Chlttenden, Calif. Location.- Wire-weight gage, lat. 36°54'00", long. 121°35'50", at State highway bridge u.e miJLe downstream from Peseadero Creek, 1 mile southeast of Chlttenden, and 2,5 miles downstream from San Benito River. Datum of gage is 82.06 feet above jaean sea level (levels by Corps of Engineers, u. S. Army). Drainage area.- 1,188 square miles. Records available.- December 1939 to September 1943. Extremes.- Maximum discharge during year, 9,000 second-feet Jan. 21 (gage height, 24.0 reet from floodmarks); minimum observed, 9.5 second-feet July 31, Sept. 22. l 1939-43: Maximum discharge, 11,100 second-feet Apr. 4 or 5, 1941 (gage height, 26.2 feet, from floodmarks); minimum observed, 3.8 second-feet July 247 1940. Flood in February 1938 reached a stage of 31.3 feet, from floodmarks. Remarks.- Records good except for high-water periods January to March, which are fair, oage read twice daily, with additional readings In periods of high water. Several diversions above station for Irrigation. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. NOV. Deo. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 16 23 33 57 1,320 236 272 95 32 15 10 15 2 16 23 33 63 397 210 260 88 29 15 12 15 S 15 24 33 52 644 209 236 35 26 15 15 14 4 16 24 33 49 507 276 227 a82 28 17 14 14 5 16 24 31 48 422 336 242 SO 28 16 - 14 14 6 17 24 31 46 354 536 244 79 30 16 14 14 7 16 24 34 47 304 584 240 75 28 16 14 14 8 18 24 34 44 298 1,160 231 68 28 17 14 14 9 16 24 34 42 264 4,110 232 63 28 17 16 14 10 18 24 33 42 246 4,380 218 59 28 15 17 13 11 20 25 32 44 204 3,030 196 68 28 14 16 13 12 20 25 33 42 173 1,930 173 56 26 15 15 13 13 20 26 33 42 171 1,270 166 51 27 14 16 13 14 19 26 33 42 169 940 161 51 26 14 16 13 15 26 34 42 14S 741 145 51 26 16 16 13 16 21 29 34 42 132 584 145 46 24 16 17 13 17 20 63 33 39 128 728 138 41 22 IS 15 12 18 20 149 33 41 122 2,110 135 44 20 18 17 12 19 21 160 33 39 110 1,600 128 42 18 19 17 12 20 21 60 1 33 49 108 1,210 123 42 17 22 16 11 21 21 42 36 3,520 117 868 120 39 18 19 IB ll 22 21 35 33 8,010 173 704 116 40 18 16 14 10 23 22 34 43 5,110 236 620 105 34 18 16 14 12 24 22 34 69 2,080 246 522 101 38 17 14 14 13 25 23 35 296 1,690 182 462 102 35 17 12 14 Id 26 22 34 215 996 227 418 96 36 16 14 14 14 27 23 36 114 830 336 374 88 36 16 12 14 ^16 28 24 35 90 755 296 366 169 34 16 14 14 14 28 23 35 76 630 M 336 137 33 17 12 16 14 30 23 33 57 1,470 - 332 105 30 15 12 14 14 31 23 ~ 62 1,680 ~ 294 31 11 14 Seoond- Runoff in Month foot-days Maximum Minimum Mean acre-feet 617 1 1 *7ft December...... 1,750 296 31 56.5 3,470 Calendar year 1943 ...... 78,467 4,560 14 215 165,600 Janu&ry 919 62 200 1 OQ May no ft July...... 22 946 -I Q September...... 397 15 10 13.2 787 Water year 1948-43 ...... 80,641 3,010 10 221 1«0,000 No gage-heIgfat record; diaebarp Interpolated, . lima baslat Paeifle war tlae. To convert war time to standard time,, subtract 1 hour. 160 PAJARO RIVIR BASIN Pacheco 'Creek near Dunnevllle, Calif. Location.- Staff gaga, lat. 36°58'50", long. 121°28'50"f In Ausaymas y San Fellpe Grant, at private road bridge, 3.3 miles northeaat of Dunnevllle, Santa Clara County. Altitude of gage, about 240 feet (from topographic map). Drainage area.- 146 square miles. Records available.- January 1940 to September 1943. Extremes.- Maximum discharge during year, 6,300 second-feet Jan. 21 (fage height, 14.4 feet, from floodmarks), from rating curve extended above 4,000 seccnd-feet by loga rithmic plotting: minimum observed, 0.6 .second-foot Dec. 22, 23. 1940-43: Maximum discharge, that of Jan. 21, 1943; no flow Jan. 1-7, June 12-26, 1940. Remarks.- Records fair. Gage read twice dally with additional readings during high water. Detaining reservoir (capacity, about 6,000 acre-feet) several mller above station stores flood water for release during low flow. Discharge, in second-feet, water year October 1042 ito September 1943 Day Oct. NCV. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 di.e 8.0 8.2 11 872 51 40 13 8.8 8.6 5.5 5.5 2 dl.8 2.0 8.0 7.5 814 47 42 18 8.8 3.0 5.S 4.8 3 OL.E 8.0 8.0 6 185 43 48 18 8.4 5.5 6 4.5 4 dl.E 2.0 8.0 4.5 81 40 42 8 3.3 9 6 3.9 5 dl.8 8.0 8.0 3.3 58 60 42 8 7.5 13 5 3.9 6 dl.t 8.0 1.6 3.0 49 185 41 7 9.5 10 5 5 7 dl.£ 8.0 1.6 3.0 48 104 39 5 18 8 4.5 5 8 2.0 2.0 1.6 3.0 47 889 38 3.9 18 7.5 4.5 4.6 9 2.0 8.0 1.6 2.5 46 1,960 36 3.9 7.5 7 4.5 4.8 10 8.0 2.0 1.6 2.5 45 1,360 32 3.9 7 6.5 4.5 3.9 11 2.0 2.0 1.6 8.5 43 473 84 3.6 6 6 4.2 3.3 12 2.0 2.0 1.6 2.5 40 S06 18 3.0 5.5 6 3.9 8.8 13 2.0 2.0 1.6 2.0 35 170 17 3.0 5 S 3.9 8.8 14 2.0 2.0 1.6 2.0 33 157 17 8.6 4.5 4.8 3.3 8.8 15 2.0 2.0 1.6 1.8 27 133 17 8.4 3.9 4.5 3.3 8.8 16 2.0 2.0 1.3 1.6 27 125 16 8.8 8.8 3.9 8.8 8.8 17 8.0 71 1.3 1.3 27 684 16 1.8 8.4 3.3 8.8 8.8 18 2,0 67 1.2 1.0 27 1,010 16 1.8 8.8 3.0 2,8 8.8 19 2.0 55 1.0 1.0 27 354 16 8.8 3.3 2.8 3.3 e.e 20 2.0 37 .8 1.8 27 184 15 3.0 3.6 8.8 3.9 8.8 21 8.0 31 .8 2,380 27 166 18 4.6 3.9 3.0 3.3 8.8 22 s.s 85 .7 1,340 27 183 13 5 3.6 3.0 3.0 8.8 23 a.s 11 .6 661 88 119 10 S 3.3 3.3 8.8 8.8 24 2.E 7 57 405 31 110 8 9.5 8.8 3.6 6 8.8 25 8.2 5.S 47 847 34 97 8 4.8 8.6 3.3 4.8 8.8 26 2.2 5 42 161 43 76 7 4.8 8.8 3.3 10 2.8 27 2.2 4.5 40 544 45 62 9 3.9 1.3 8.8 18 8.8 28 2.2 3.9 35 205 52 58 11 3.6 1.3 3.6 10 8.6 29 2.2 3.3 26 162 - 51 18 3.3 1.8 3.9 8.8 2.4 30 2.2 2.5 22 1,420 _ 45 18 3.3 8.8 4.8 6 8.4 31 2.2 - 15 585 - 42 - 8.8 - 4.8 6 ~ Seocnd- Runoff in Month fcot-daye Maxima Minimum Mean acre-feet October...... 68.6 8.8 l.i) 8.02 124 November ...... 360.7 71 s.c) _12. .. 0 715 December...... 317.9 87 .8 \ 10.3 631 Calendar year ' 1942 ...... 18,968.7 1,200 .6 39.5 85,710 January...... 8,113.8 8,380 1.0 868 16,090 February...... 1,645 872 , 87 58.8 3,860 arch...... 9 '668823 1,060 40 898 18,290 April...... » 42 , 7 88. 3 1,380 liay...... 148.8 13 1.8 4.78 894 June...... 131.6 18 1.3 4.39 861 4nly...... 163.0 13 8.6 4.94 303 August ...... 167,6 18 8.8 5.08 313 September...... 100.7 5.5 8.4 3.36 800 Water year 1942-43 ...... 21,088.1 8,380 .6 57.8 41,800 d Doubtful gage-height record} discharge interpolated. Time basis; Pacific war time. To con?ert war time to standard time, subtract 1 hour. PAJARO RIVER BASIN 161 Uvas Creek near Morgan Hill, Calif. Location.- Water-stage recorder, lat. 37°04'00", long. 12l°41'30", in Las Uvas Grant, h(X)' feet upstream from Uvas Dam, 0.6 mile downstream from Eastman Canyon, and 4.8 miles southwest of Morgan Hill, Santa Clara County. Altitude of gage, about 390 feet (from topographic map). Drainage area.- 30.2 square Mles, Kecoras available.- December 1930 to September 1943. Average giscnarge.- 12 years (1931-43), 41.6 second-feet. Extremes.- Haximuffl discharge during year, 6,740 second-feet Jan. 21 (gage height, 12.35 feet); practically no flow Sept. 11-30. 1930-43: Maximum discharge, 8,630 second-feet Dec. 11, 1937 (gage height, 13.70 feet), from rating curve extended above 3,000 second-feet; no flow at times during 1931-34, 1943. Remarks.- Records good. No regulation or large diversion above station. Water diverted at Uvas Dam for municipal supply of Gllroy. Rating tables, water year 1942-43 (gage height, In feet, and discharge, In second-feet) Dot. J. to Jan. 81 Jan. 88 to Aug. 9 8.1 '0.2 3.0 41 5.6 7go 8.1 0,8 8.6 18 3.7 163 8.8 .8 3.3 82 6.0 920 8,2 .8 8.6 86 4.O 254 2.3 2.3 3.6 136 7,0 1,39O 2.3 8.8 3.O 46 4,3 316 8.4 4.4' 3.9 804 7.8 1,880 .8.4 4.8 3,8 72 8.6 18 4.3 316 8.6 2,480 2,6 S 3.4 105 2,8 94 4.9 510 9.4 3,210 Note.- Sane as preceding table above 4.3 ft, Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.8 1.0 4.0 10 173 61 46 17 7 8.4 0,9 0.1 2 .6 .9 4.0 9.5 138 46 48 16 7 8.4 ,8 .1 3 ,6 1.1 3,8 8.6 114 63 39 16 7 8.4 ,6 .1 4 ,6 1.4 3,1 8 96 68 37 16 7 8.8 ,6 .1 5 ,4 1,8 3.1 7,6 85 91 40 16 7 2.0 .6 .1 6 .4 1,8 5.5 7 75 82 38 16 6.5 8.2 .6 .1 7 .4 1.1 8 6.6 77 71 36 14 6.6 8.8 ,6 .1 8 .5 1.1 6 6.5 71 178 35 18 6.6 8,0 .4 .1 9 ,6 1.1 4.4 6 65 375 33 18 6,6 1.8 ,4 .1 10 .6 1.0 4.8 6.6 57 388 31 11 6.6 1.7 a.4 .1 11 1.0 1.0 4.8 5.5 68 844 89 11 6.6 1,7 a.4 0 12 1.1 1.0 4.8 6 60 180 89 11 6.6 1.4 a. 3 0 13 .9 .9 4.8 4.7 46 144 88 11 6.5 1,4 ,3 0 14 1.0 .9 4.0 4.7 44 186 87 11 6 1.4 ,3 0 - 15 1.0 1.8 4.0 4.7 40 1O7 86 11 5.5 1,6 ,3 o 16 .8 2.0 3.8 4.7 38 " 96 85 11 4.S 1.7 .3 o 17 .8 56 3,6 4,4 37 134 83 10 4.8 1.7 .3 0 18 .6 238 3.6 4,8 36 183 28 10 4,8 1.6 .8 0 19 .4 34 3,6 4.8 S3 108 82 9 3.9 1.6 ,8 0 20 .5 IS 3.6 29 31 93 21 8,5 3,9 al,5 .8 0 21 .6 10 3,6 3,200 37 85 81 8,6 3.9 al.6 ,8 o 22 ,6 8 3.6 766 42 78 80 7,5 3.9 al.4 ,2 0 23 .6 7 84 696 38 72 IS 7 3,9 1,4 .2 0 24 .6 6 78 305 35 ' 66 18 7 3.6 1,3 .2 0 25 ,8 5.5 71 198 47 61 18 6.5 3,3 1,4 .2 0 £6 ,9 6.5 89 169 74 56 17 6,6 3.0 1.3 .1 'O 27 1.0 5 81 173 66 68 20 7 8.8 1.3 .1 o 28 1.6 4.7 1614 ~ 129 67 60 34 7 8.6 1,8 ,1 o 29 1.8 4.4 239 69 88 S.5 8.4 1.8 .1 0 30 1.8 4.8 18 404 68 19 6.6 8.4 1.0 .1 0 31 1.0 11 831 46 6.6 .9 ,1 Runoff in Month fooHays V** "* Minil"u» Mean acre- feet Octo 23.6 1.8 0.4 0.76 47 Hove mber...... 41S.O 832 .9 13,9 829 DeoeBber...... A ...... 367.1 78 3.1 11.8 788 Calendar year 1942 17,637.8 1,620 ,4 48.3 34,990 Janu ary 6,666.1 3,200 4.8 816 13,200 Febr 1,753 173 31 68.6 3,480 Hare 3 ,488 388 46 110 6,790 Apri 1...... 835 45 17 27.8 1,660 May. 385.0 17 6.6 10.6 645 June 161.9 7 8.4 5,06 301 July 50,8 8,4 ,9 1.64 101 Augu st...... 10.1 ,9 ,1 .S3 80 September...... 1,0 .1 0 ,03 8.0 ffater year 1942-43 ...... 14,013,6 3,800 0 38.4 87,800 Peak discharge.- Jan. 81 (7 a.m.) 6,740 aec.-ft.j Jan. E2 (11 D.a.) 1.980 aec.*ft.t Mar . 10. (4 a.m.) 664 see.-ft. a Ho gage-height record; discharge Interpolated Tina baa 1st Pacific war time. To convert war time to standard tine, subtract 1 hour. 162 PAJARO RIVER BASIN Tres Plnos Creek near Tres Plnos, Calif. Location.- Water-stage recorder, lat. 36°45'20", long. 121°17'00", In Santa Ana y Qulen Sabe Grant, 3j miles southeast of Tres Plnos, San Benlto County, ard 5$ miles up stream from'mouth. Altitude of gage, about 570 feet (from topographic map). Drainage area.- 209 square miles. Records available.- December 1940 to September 1943. December 1922 to Way 1923 and December 1939 to November 1940, at site 1 mile downstream (records of low flow not equivalent on account of diversions for Irrigation and some subsurface flow at for mer site). Extremes.- Maximum discharge during year, 2,520 second-feet Mar. 9 (gp«se height, 4.78 feet); minimum, 1.3 second-feet (regulated) May 4. 1922-23, 1939-43: Maximum discharge, 8,060 second-feet Apr. 4, 1941 (gage height, 7.75 feet), from rating curve extended above 3,500 second-feet; no flow at times (former site). Flood In February 1938 reached a stage of about 9.0 feet, from floodmarks, present site and datum. Remarks.- Records good below 100 second-feet, fair between 100 and 40") second-feet, and poor above 400 second-feet. Diversions above station for Irrigation. Discharge, In second-feet, water year October 1942 to September 1945- Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 4.3 5.5 5 5 37 10 IB 8 6 7 4.8 - 3.6 2 4.3 4,5 5.5 6 23 9 16 S 6.5 6.5 4.0 3.6 3 6 4.7 5.5 6 16 9 16 7.6 6,5 7 4,5 3.8 5 12 11 14 6.5 6.6 6.6 4.2 3.6 5 5 4,5 6,5 6 9.5 27 17 7 6.5 6,5 4.2 6 6 6 4.6 5,5 5 8,5 66 24 7 6.5 6,6 4.5 3.6 7 5.6 4.5 5.5 5 8,5 31 21 7 6,5 6,5 5 3.6 8 5.6 5 6.6 5 17 17S 21 7 6.6 6.5 5 4.5 9 5.5 5.6 6.6 6 27 1,100 29 6.6 6 6.6 5 5 10 5,5 5.6 5.5 5 18 4S8 23 6 6 6 4.8 6 * 11 5,5 6.5 5.5 5 13 - 168 17 6 6 6 4.8 4.0 12 6.6 6,6 6,6 6 10 104 16 13 6,6 5,6 6 5 9 58 12 6 6 6 4.6 3.6 14 S.6 6 6 5 8.6 46 11 5.5 5 6 4.S 4.0 16 4,5 6,6 5 6 8 46 10 5.6 4,8 6 4.8 4.0 4,0 ' 16 4,3 6,5 6 5 8 29 10 8,5 4,8 4,5 4.8 17 4,1 7 5 5 8 13O 9,6 5.5 4,8 5 5 3,8 18 5.5 9 5 5 8 493 10 6 4,8 6 5 3.8 19 4,7 34 5 5 8 168 9,6 6 4.8 6 4,8 4.0 20 4.3 11 5 6,6 8 109 9.6 6 6 4.5 4.8 3.8 21 4*3 6,5 6 18 8.5 83 9,6 6.6 6,6 4.0 4.8 3,8 22 4.3 6,5 6,5 151 9 83 9.5 6,5 6 4.0 4.8 4.0- 23 6,5 6 5.5 185 14 68 9.6 6 6 4,0 4,8 4.0 24 6,5 5,5 29 64 13 60 9.6 5 6 3.8 4.8 4.0 25 6,5 5.5 117 30 11 43 6 6.6 5 3.8 4,8 26 6.6 5.5 52 SO. 10 36 9 6 6.6 5 3.6 5 27 6.6 5.5 19 34 12 29 9 6,6 6,6 5 3,6 5 28 5,5 6,5 6,5 29 12 88 9,5 6.6 6,5 3.6 3.8 5 9 6,5 6.5 4.8 6 6 29 5.6 5.5 5.5 20 26 7 30 5.5 6,6 5 169 34 8,6 6 6 4.2 5 31 5,5 6 91 26 6 4.8 3.4 Second- Runoff IB Month foot-days Maxima Minim Meaa acre-feet Octo 158,1 6,5 4,1 6,10 314 Hove 208.V 4.5 6,76 402 Deoe«a»r...... 4 ...... 368,$ iS. 5 11.7 719 Calendar year 1«42 6,201.8 873 3,7 14,2 10,320 Janu ary . 918.6 186 5 e»,4 1,810 Febr Mary...... 584.6 37 a 1S.7 703 Marc hT*::::::::::::::::::::::::::::::::::: 3,714 1,100 9 ISO 7,370 Aprii...... 403,5 89 8,6 15,4 800 £» 193.C 8 6,8 6,83 583 June 178,6 7 4.8 6,96 3S4 July 167.0 7 3,8 6,39 351 Augn 140.4 5 3.4 4,55 878 Septsaber...... 126.4 6 3,6 4.81 261 »ater year 1948-43 ...... 6,913.3 1,100 3.4 18.9 13.780 ISSHF. fiJU&KKfto- "** 8 '* a-"- 1 sr6BO e.-ft., M.P. 18 (1 ..».) 91fi ,M-»ft-, vice. To oonrert nay tin* te itmdBra PAJARO RIVER 163 San Benlto River near Willow Creek School, Calif. Location.- Water-stage recorder, lat. 36°36'55", long. 121°12'50", in SWi sec. 21, T. lEl S., R. 7 E., ll miles downstream from Willow Creek, If miles norttortest of Willow Creek School, and 10 miles northwest of San "Benito. Datum of gage is 896.8 feet above mean sea level, unadjusted. Drainage area.- 250 square miles. Records available.- December 1939 to September 1943. Extremes.- Ifexlmum discharge during year, 1,680 second-feet probably Mar. 9 (gage height, 4.35 Teet from floodmarks), from rating curve extended above 1,300 second-feet; mini mum, 2.3 second-feet Sept. 30. 1939-43: Maximum discharge, 6,200 second-feet Apr. 4, 1941 (gage height, 7.8 feet), from rating curve extended above 1,600 second-feet: minimum, 1.2 second-feet .A-'g. 10-13, 20, 21, 1940. Maximum stage known, about 9.0 feet (present datum) from floodmarks left by high- water of 1937-38, Remarks.- Records fair. Small diversions above station for irrigation. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. NOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 3.4 3.4 3.4 4.8 90 20 5O 22 6.5 4.0 2,8 2.8 2 3.4 3.4 3.5 4,7 61 20 46 20 6.S 4.0 2,8 2.8 3 3,2 3.6 3.6 ,5 49 20 44 20 6.5 3.9 3.0 2.8 4 3.1 3.6 3.5 .5 42 60 42 19 6.5 3,7 3.0 2.8 , 5 3,1 3.5 S.5 .3 36 246 . 45 18 6,5 3.7 3.0 2.8 6 - 3.1 3.5 3.7 ,3 32 1S2 57 17 6.5 3.7 3.0 2.7 7 3.2 3.5 4.0 ,2 SO 99 62 17 5.5 3.5 3,0 2.7 8 3.2 3.5 S.,6 .2 38 d250 48 16 6.5 3.5 3.0 2.8 9 3,2 3.5 3.6 4.2 42 dl,OOO 50 15 5 3,5 2.9 2.8 10 3.4 3.5 3.5 4.2 30 d5OO 44 IS 6.5 S.5 2.9 2.8 11 3.7 3.5 3,5 4.2 26 316 41 12 6 3.3 2.9 2.8 12 3.5 3.4 3.4 4.2 20 175 SS 12 5.5 3,3 2.9 8,7 IS 3.5 3,4 3.4 4.2 16 128 36 12 5.5 3,5 2,9 2.7 14 3.4 3,4 S.4 4.2 15 106 34 12 5,5 3,7 3,0 2,7 15 3.4 3.5 4.2 4.2 15 ' 89 32 12 5 3.7 3,0 2,7 16 3.4 3.5 3.6 4.3 15 77 32 12 4,9 3,5 S.O 2,7 3.2 3.9 3.6 4.3 15 113 31 12 4,2 3,6 3,0 2,8 3.2 4.2 3.5 4,2 15 277 30 12 4,2 3.5 3,2 3,0 3.2 4,2 3,5 4.8 16 142 29 9,5 4,2 3,5 3,0 3.0 S.I 3.7 3.5 5,5 15 100 28 8.5 4.0 3.5 3.0 3.0 21 S.I 3.5 3,4 29 20 91 3.S 22 3.1 3.5 3.4 607 20 105 23 3.2 S.5 3.8 841 200 87 24 3.2 3.5 5.5 S22 40 72 4.0 3,0 3,0 25 3.4 3.5 8.5 lOi 20 64 24 6,5 4.0 3.2 2,8 5,0 26 3.4 3.5 10 68 20 60 24 6,5 4.0 S.2 2.9 S.O 27 3,4 3.6 8,5 92 20 57 24 6,5 3,9 2.8 2.8 2.9 2R 4.0 3.6 7 69 25 63 SI 6.5 4.0 2.7 2,8 2.9 29 3,7 3.5 6 50 _ 54 31 6.5 4.0 2.8 2.9 2.8 30 3,5 3,4 5.5 95 .. 60 26 6,5 4.0 2,8 2.8 2.6 31 3.5 - 8 182 - 66 - 6.5 - 2.8 2.8 - Seocnd- Runoff in Month foot-days Maximum Minimum Mean acre-feet 4 S December...... 138.1 10 3.4 4.45 274 Calendar year 1942 ...... 12,164,9 931 3,1 33.3 24,130 jBuiuftry 82 1 April...... Hay 2S 726 OflQ July...... September...... 84.8 3.0 2.6 2,83 168 Water year 1948-43 ...... 10,422.6 1,000 2.6 38.6 20,670 Feah discharge,- Jan. 22 (4 a.m.) 1,580 s«e.-ft,j Mar. S, 1,660 sec.-ft.t Kar. 16 (S a.m.) 470 sec,-ft. d Doubtful gage-height recordj discharge computed on basis of records for Tres Fines Or«ck aear Tres Pinos. - - ,> Hote.- No gage-height record Feb. 10 to Mar. 4; discharge computed on bas^s of recorded rang* la stage and records for Tres Pinos Creek near Tres Pinos. Time basisi Pacific war time. To convert war time to standard tlate, subtract 1 hour. 164 SAN LORENZO RIVER BASIN San Lorenzo River at Big Trees, Calif. Location.- Water-stage recorder, lat. 37°01'40", long. 122°03'30n , in Canada del Rincon Grant, Santa Cruz County, half a mile south of Big Trees station on Southern Pacific Railroad, 1.6 miles downstream from Zayante Creek, and 4 miles north-of Santa Cruz. Altitude of gage, about 150 feet (from topographic map). Drainage area.- 110 square miles. Records available.- April 1937 to September 1943. Extremes.- Maximum discharge during year, 13,900 second-feet Jan. 21 (gage height, 16.35 feet; minimum, 19 second-feet (regulated) Sept. 18. 1937-43: Maximum discharge, 24,000 second-feet Feb. 27, 1940 (gage height, 21.1 feet, from floodmarks), from rating curve extended above 5,000 second-feet on basis of slope-area studies and logarithmic plotting: minimum, 0.8 second-foot (regulated) June 25 1939 Remarks.- Records good. Many small diversions above station for domestic supply. Rating tables, water year 1942-43 (gage height, In feet, and discharge, in second-feet) Oct. 1 to Jan. Si , Jan. 22 to Sept. 30 1.1 26 8.8 806 7,0 1,820 0.9 18 8.0 98 4.0 660 1.3 36 3.8 297 6.0, 8,630 1.1 87 8.4 140 6.0 860 1.6 48 3.7 440 10.0 4,320 1.3 36 2.6 176 6,4 1,000 1.8 72 4.6 684 11,0 6,460 1.6 68 3.0 2^0 2.1 100 6.3 960 12.6 7,460 Ifote.- Sans as preceding table abore 2.4 137 6.0 1,270 6.4 feet. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 30 30 48 73 640 314 249 118 74 50 30 24 2 30 30 48 70 448 * 277 233 116 72 46 30 87 3 29 34 47 66 389 302 222 111 69 46 31 28 4 31 34 47 66 360 649 20* 108 68 44 36 86 5 30 32 46 63 319 468 247 107 67 44 30 24 6 30 32 46 62 286 442 212 106 67 43 29 26 7 29 30 63 60 344 398 199 103 64 43 29 26 8 29 30 49 68 322 886 197 99 64 42 88 2B 9 29 30 67 291 1,280 186 96 66 41 27 24 10 30 30 H 66 260 1,230 177 96 64 42 27 24 11 39 30 44 64 241 827- 169 93 64 40 29 24 12 34 30 43 S3 282 677 162 91 66 40 30 26 13 33 29 44 62 209 676 168 91 64 42 30 22 14 31 29 43 60 197 666 166 S9 61 40 30 24 15 32 39 42 60 186 484 161 88 59 42 29 26 16 31 60 41 60 173 440 148 88 56 42 28 26 17 34 383 41 49 169 640 142 86 56 42 88 24 18 30 369 41 48 160 643 137 84 64 40 28 22 19 29 119 41 47 161 469 134 82 62 40 88 24 20 2B 66 40 512 146 417 133 81 51 40 26 22 21 2B 70 40- 7,430 162 392 130 80 60 40 26 20 22 88 61 43 2,120 194 370 126 78 64 37 25 20 23 28 67 361 2,200 226 344 126 76 54 37 26 22 24 29 64 362 776 204 322 121 76 60 34 26 21 25 32 61 313 660 212 308 120 74 60 35 26 21 26 30 60 143 476 626 2B8 118 76 60 33 26 21 27 29 64 108 604 507 272 137 76 61 33 26 22 28 44 67 96 409 376 268 199 72 49 33 26 as 29 37 62 90 808 346 136 71 48 32 26 00 30 32 50 83 1,380 302 126 69 49 31 24 ss 31 31 77 V31 266 66 30 24 Seoond- Runoff in Month foot-days Maximum KiBiBUB Bean acre-feet Octc 966 44 2f3 51.2 1,980- Nove 2,021 383 2i J 67.4 4,010 Dec*rtjer...... ^...... -2,611 362 4(3 S4.2 6,180 Calendar year 1942 ...... 76,732 7,470 21i 207 160,200 Janu &ry 18,986 7,430 4'f 613 37,660 Febr miry . 7,907 626 14(5 282 16,680 Hare h...... 16,141 1,280 26t » 488 30,030 Apri 4,967 249 IK ) 166 9,830 May. 2,744 118 6 ? 88.6 6,440 June 1,760 74 4fi 68,7 3,490 July 1,222 60 S<) 39.4 2,420 Augu 861 56 Z\1 87.8 1,710 September...... 702 27 a) 83,4 1,390 Water year l^s-^s ...... 59,880 7,430 2(> 164 118,800 Peak diaebWK*,- 1fan, 21 (4|30 p.m.) 13,900 see.-ft.j Jan, 88 flkl p.n.) 7*>m M*«*ft,,| Jai B, W (1 a,».) 3,OOO »ee.« ft.| P»B. 26 ts p.m») 860 MO.-ft.j Mar. 9 (6 «.»,) 1,«0 a»o.-rt, Time ba8i»> J-acll to war time. To oonrert war tlno to standard time, snbtrrnt 1 hoar. SA1I LORENZO RIVER BASIN 165 Branciforte Creek at Santa Cruz, Calif. Location.- Water-stage recorder, lat. 36°58', long. 122°01', in Santa Cruz, Santa Cruz County, 150 feet downstream from Market Street Bridge and 1 mile upstream from mouth. Datum of gage is 15.74 feet above mean sea level (levels by Corps of Engineers< U. s. Army). Drainage areaj.- 18.2 square miles. Records available.- January 1940 to September 1943 (discontinued). Extremes.- Maximum discharge during year, 2,430 second-feet Jan. 21 (gage height, 10.88 feet); minimum not determined. 1940-43: Maximum discharge, 3,910 second-feet Feb. 9, 1941 (gage height, 15.1 feet from floodmarks), from rating curve extended above 2,500 second-feet; minimum not determined. Remarks.- Records poor. No diversion above station. Discharge, in second-feet, water year October 1942 to September 1943. Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 2.4 2.6 3.7 8 66 40 al6 7 4.7 2.8 1.6 2 2,4 2.6 3.7 7.6 52 31 al4 7 4.2 2.7 1.4 3 2.4 2,9 3.7 7 42 47 13 6,5 3,7 2,5 1.4 4 2.4 2.8 3.7 6.5 35 107 a!3 6 3.7 2.4 1.7 5 2.5 Z.I 3.6 6.5 28 87 a25 6 3.7 2.4 1.4 6 2.4 2.6 4.4 6 24 64 a!5 6 3.7 2.5 1.4 7 2.4 2.6 4.8 6 71 50 a!3 5.5 3.6 2.8 1.4 8 2.4 2.6 4,0 6 53 261 a!2 6.5 3.7 2.0 1.3 9 2,4 2.7 3.9 6 39 400 all 5.5 3.7 1.7 1.4 10 2.5 2.7 3,7 6 31 239 11 6,5 3.4 1.7 1.6 11 3,2 2.6 3,7 6 26 116 alO 5.5 3,8 1.8 1.8 12 2.6 2.5 3.7 6 24 77 9.5 5.5 3.2 2.2 1.8 13 2.5 2,6 3.7 5.6 21 59 9.5 5.5 3.2 2.4 2.1 14 2.5 2.6 3.7 5.5 19 86 9.5 5'5 3.2 2.4 3.7 15 2.5 3.4 3.6 6.5 18 67 9.5 3.1 2.6 2.7 - > «2 16 2.5 10 3.4 5.5 17 46 9.5 5 3.1 2.6 2.1 17 2.5 66 3,4 5.5 16 117 9 4.6 2.5 2.6 2.0 18 2.5 68 3.4 5.5 16 82 9 4.6 2,6 2.6 2.3 19 2.4 15 3.4 5.5 15 58 9 4.6 2.1 2.6 2.0 20 2.4 7 3.4 173 15 47 8.5 4.6 2.4 2.7 1.7 21 2.4 4,8 3.4 1,250 17 38 8 4.6 2.5 2,7 1.5 iz 2.4 4.2 6.6 390 2(f 33 8 4.6 Z.I 2.1 1.7 S3 2.5 3.9 357 370 34 24 7.5 4.6 2.8 270 1.5 2.6 3.7 171 113 24 a23 7.5 4.4 3.0 2.0 25 2.6 3.6 85 82 49 a22 7 4.8 2.5 2.0 26 2.5 3,4 29 73 286 22 6.5 5.5 2.5 1.5 27 2.4 4.7 20 106 98 20 8 5 2.6 1.4 . a2 28 4.0 4.2 15 66 66 B20 14 4.7 2.7 1.4 29 2,S 3.9 12 323 e 4.7 2.8 1.2 30 2.6 3.7 9 280 «. B21 7.5 4.3 3.0 1,3, 31 2.« - 8.5 106 - ale - 4.7 - 1,6 - Second- Runoff in Month fcct-days UaxiiDuiB Minimun Mean acre-feet October ...... 79 2 4.0 a 4 2,55 167 246 '. 6 68 2,£ 8* 2£ 489 Deoeaber ...... 791,0 367 3.4 25.5 1,570 Calendar year 1942 ...... 9,641.8 991 _ 26.4 19,120 January ...... 3,446.0 1,250 5.5 111 6,840 February...... 286 15 43,2 2,400 March...... 2*336 400 18 75,4 4,630 April ...... 'sie.o 25 6.5 io!e 631 Hay ...... 162.3 7 4.3 5,24 322 Jane...... 94.6 4.7 Z.4 3.15 188 July...... 67.2 2.S i.af 2,17 13S August ...... 56.4 2.7 1.3 1.82 112 September ...... 60 2 119 Water year 1942-43 ...... 8,868.3 1.2SO 1.2 24.3 17,590 Fes* discfiaMMW.- Dec. 24 (9 D.m.> 664 see. -ft,; Jan. 21 f6i3O a.m.) 2.430 see. -ft. « Jan, 23 p.m.) 841 seo.-ft.j Mar. 9 (3 a.m.) 598 sec.-ft. p«e computed oa basis cf records for San Lorenzc River at B'.<; Tree*. fas trie TOJ» 1o convert war ttae to "standard time, subtract 1 hour 166 CREEK BASIN Stevens Creek near Cupertino, Calif. Location.- Water-stage recorder and concrete control, lat. 37°18'20", long. 122°04'25", In SWf sec. 22, T. 7 S., R. 2 w., at county highway bridge, a quarter of a mile downstream from Stevens Creek Dam and 4 miles west of Cupertino. Altitude of gage, about 385 feet (from topographic map). Drainage area.- 18.1 square miles. Records available.- January 1930 to September 1943. Average discharger- 13 years,, 14.0 second-feet. Extremes.- Maximum discharge during year, 128 second-feet Jan. 21 (grge height, 2.65 eet); minimum, 2.0 second-feet Nov. 10, 11. 1930-43: Maximum discharge, 2,390 second-feet Feb. 28, 1940 (rage height, 7.05 feet), from rating curve extended above 350 second-feet: no flow drrlng part of each year except 1938, 1941, 1942. ernarks.- Records good. Flow regulated by Stevens Creek Reservoir (capacity,4,000 acre- feet ); water released during summer. Rating tables, water year 1948-43 (gage height, In feet, and discharge, In second-feet) Oct. 1 to Dec. 5 Dee. 6 to Sept. SO 1.4 2.1 1.4 2,4 2,0 34 1.5 4,2 1,5 4.6 2.1 44 1.8 7.2 1.6 8 2.2 56 1.7 12 1.7 1LS 2,3 68 1,8 17 1.8 L9 2.4 82 1.9 24 1,9 26 Discharge, in second-feet, water year October 1942- to September 1943 Day Oct. NOT. Deo. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 23 3.6 13 13 16 68 7.5 21 18 11 11 15 2 23 2,8 13 11 31 39 7.5 17 18 11 11 15 3 22 3.0 13 7 31 20 7.5 12 18 11 7 15 4 22 3.0 13 7 31 20 19 12 18 11 3. 16 5 22 2.6 11 7 27 20 88 11 16 11 3, 15 6 22 2.6 6.5 7 13 20 36 16 12 11 3, 15 7 21 2,6 6 6.6 13 20 36 20 12 11 3. 15 8 21 2.3 6.5 6.5 13 29 27 20 12 11 3. 12 9 21 2.3 4.8 6,5 89 54 20 20 12 11 3. 11 10 18 2.3 4.8 6,5 29 71 14 15 12 11 3. 11 11 16 2.3 4*6 6,5 28 81 10 11 11 10 6 11 12 16 2,3 4.8 6,5 28 81 13 11 11 10 10 11 13 16 2,3 5 6.5 22 67 27 11 11 9.5 IS 11 14 16 2,4 5 6.6 26 46 20 12 11 9.6 11 16 16 2,6 S 6 21 46 13 IS 11 9 16 11 16 16 2,8 4.6 4,8 19 46 13 16 11 9 16 11 17 17 3.0 4.8 3,4 19 48 IS 10 11 9 - 15 11 18 18 6.5 5 3.4 19 48 14 16 11 9 16 11 Iff IS 13 5 3.1 23 46 14 10 11 9 15 11 20 18 13 6 f»,5 18 49 15 16 11 9 16 11 21 18 13 6 f44 20 56 18 IS 11 9 16 11 22 18 13 5 66 24 55 19 10 11 14 16 11 23 18 13 8 46 23 56 17 10 11 19 11 24 16 -. 13 14 SO 23 43 16 10 11 19 15 10 25 11 13 13 21 29 8 16 10 11 18 16 10 26 11 13 13 20 46 6 IS 13 11 16 15 10 27 10 13 13 16 68 6.6 14 18 11 10 15 9.5 28 9 13 13 13 68 7,5 14 18 '1111 10 15 9.5 29 4.2 13 13.- 13 _ 7.6 17 18 4.0 16 9 30 4.2 13 13 14 _ 7.6 22 18 11 11 16 9 31 4,2 - 13 13 - 7.5 18 11 15 Secoad- Month Maximua Minimum Mean Runoff IB foot-days i acre-feet October...... 605.6 85 4,8 Ur3 1,000 November...... 807*5 IS 2.5 6.61 411 December...... 861,6 ------114 ------4.6 8,44 619 Calendar year 1948 ...... 6,«87.0 264 8,5 24.5 17,500 January...... 426.2 66 S.I 13.7 845 February...... 760 M *«3Ua 88 *6 1,490 March...... 1,177.6 Si 6 58.0 2,340 April...... 520,6 36 7,6 17.4 1,050 May...... 458 81 10 14,8 908 June ...... 568 18 11 750 July...... 350.0 19 9 ills August...... 367.5 1« 3,1 11.5 709 September...... 349.0 15 9 11 .< .492 Water year 1942-43 ...... 5,730,2 81 8,3 15.7 11.370 f Computed on basis of partly-estimated gage-height reeovd. Time baslai Pacific war tl*e. To convert war time to standard ttM, nibtno* 1 hoar. GUADALUPE CREEK BASIN 167 Guadalupe Creek at Guadalupe, Calif. Location.- Water-stage recorder and concrete control, lat. 37°13'05", long. 121°54'35", in SWt sec. 19, T. 8 S., R. 1 E., half a mile northwest of Guadalupe and 3.5 wiles upstream from Alamitos Creek. Altitude of gage, about 325 feet (from topographic map). Drainage area.- 12.6 square miles. Records available.- January 1930 to September 1943. Average discharge.- 13 years, 12.2 second-feet. Extremes.- Maximum discharge during year, 722 second-feet Jan. 21 (gage height, 3-23 reetj; minimum, 0.4 second-foot (regulated) Oct. 25, 26, Nov. 2. 1930-43: Maximum discharge, 1,160 second-feet Dec. 28, 1931 (gage height, 4.05 feet), from rating curve extended above 840 second-feet: no flow during part of each year except 1937, 1938, 1941-43. Remarks.- Records fair. Small diversions above station. Flow regulated by Guadalupe Reservoir (capacity, 3,500 acre-feet); water released during sunnier. Rating tables, water year 1942-43 (gage height, In feet, and discharge, In second-feet) (Shifting-control method used Nov. 19 to Dec. 29) Oct. 1 to Jan. 6 Jan. 7 to Sept. 30 0-4 0.4 0.9 14 0.6 3.2 1.1 31 1.6 89 2.1 205 .5 1.2 1.0 20 .7 6.2 1.2 40 1.7 106 2.3 274 6 s -6 .S 11 1.3 51 1.8 126 7 5 .9 16 1.4 62 1.9 149 8 S.5 1.0 23 1.5 75 2.0 175 Discharge, in second-feet, water year October 1942 to Septeaber 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 20 0.5 2.4 a3.5 18 17 14 7.5 9 10 21 a!7 2 20 .4 2.4 a3.5 16 18 13 7.5 9.5 11 20 a!7 3 20 .5 2.4 a3.6 13 17 13 4.3 10 11 20 a!2 4 20 .7 2.3 a3.5 11 18 13 4.5 10 10 19 a5 5 20 .6 2.3 a3.5 9 17 12 4.S 10 10 19 a5 6 20 .6 2.1 a3.5 S 19 12 7 10 11 19 a5 7 19 .9 2.3 3.5 8 22 13 8.5 10 11 . 19 a5 8 19 1.3 2.3 3.5 7.5 26 13 9.5 10 alO 19 a5 9 19 1.2 2.3 3.5 6 40 11 9 10 alO 19 a5 10 18 1.2 2.4 2.4 6 61 10 14 10 alO 19 aS 11' 16 1.2 2.4 2.4 5 55 ' 9.5 19 10 alO 19 a5 12 15 1.1 2.3 2.4 6 50 9.5 19 10 alO 19 »4 13 15 1.1 2.3 2.2 13 49 9.5 19 10 alO IS 04 14 14 1.1 2.1 2.0 14 49 9.5 19 9.5 alO 18 a4 15 14 1.1 2.1 2.0 13 40 19 18 10 a!4 18 84 16 14 1.0 2.1 2.0 12 23 10 20 10 a!9 18 a4 17 .. 13 1.2 2.1 2.0 10 IS 10 16 9.5 a21 IS a4 18 12 g.6 2.1 2.0 11 16 10 8 10 a21 IS a4 19 11 3.5 2.0 2.0 12 14 6.5 8 11 a21 18 a4 20 10 4.2 2.1 a5 12 14 3.7 8 11 a21 18 4.0 21 8.5 4.0 2.1 a250 IE 13 4.0 8.5 11 a21 18 4.0 22 2.0 3.5 2.1 a60 12 13 5.5 8 11 22 18 4.0 23 .7 3.0 2.1 a70 12 13 6.5 S 11 22 18 4.0 24 .5 2.8 2.1 a30 11 12 8 7.6 11 22 18 4.0 25 .4 2.6 2.6 a20 12 12 6 11 10 22 IS 4.0 26 .4 E.6 2.6 19 22 12 5.5 15 10 22 17 4.0 27 .5 2.6 2.4 16 22 11 8 15 11 21 17 4.3 28 .5 C.6 2.1 12 19 11 13 15 11 21 a!7 4.3 29 1.6 2.6 2.1 20 - 14 S.5 15 10 21 a!7 4.3 30 1.3 2.4 d3 29 _ 15 6 15 11 21 a!7 4.0 31 .7 - - d4 22 - 15 - 12 - 21 a!7 - Ruief f In Month forays "**i ° Minimum 118811 ac~e-feet October...... 34«.l " 20 0.4 11.2 686 November...... §4.7 4.2 .4 1.82 108 December...... 72.1 4 2.1 2.33 143 Calendar year 1942 ...... 6,365.6 193 .4 17.5 12,670 January...... 605.9 250 2.0 19.5 1,200 February...... 332.5 22 5 11.9 860 March...... 724 61 11 23.4 1,440 April...... 283.2 14 3. r 9.44 662 May...... 360.6 20 4.3 11.6 716 June ...... 306.5 11 9 10.2 008 July 497 22 10 16.0 986 August ...... 568 21 17 18.3 1,130 September...... 162.9 17 4.0 5.43 323 Water year 1942-43 ...... '...... 4,313.5 250 .4 11.8 8,560 Ho gage-height record; discharge computed on basis of records for nearby streams and records of release from reservoir 2 miles upstream. d Doubtful gage-height record; discharge interpolated. Time basist Pselfle war tine. To convert war time to standard tine, subtract 1 hour. 168 GUAMLUPE CREEK BASIN Guadalupe Creek at San Jose, Calif. Location.- Water-stage recorder and concrete control, lat. 37020'00", long. 121°54'00", at San Jose, Santa Clara County, 100 feet downstream from Los Gatos Creek. Altitude of gage, about 80 feet (from topographic map). Drainage area>- 131 square miles. Records available.- January 1930 to September 1943. Average discharge.- 13 years, 45.6 second-feet; affected by storage and spreading since 1936. Extremes.- Maximum discharge during year, 7,670 second-feet Jan. 23 (gage height, 10.68 feet ) , from rating curve extended above 1,600 second-feet by logarithmic plotting; no flow during part of Jan. 6. 1930-43: Maximum discharge, 8,680 second-feet Feb. 27, 1940 (gage height, 11.88 feet), from rating curve extended above 3,200 second-feet by logarithmic plotting; no flow during parts of each year. Remarks.- Records fair. Small diversions above station. Flow regulated by several reservoirs. Discharge. In second-feet, water year October 1942 to Septemt«r 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. '3.2 0.5 1.6 1.4 266 19 35 12 10 2.0 2.5 0.7 2.9 .5 2.3 1.6 206 10 44 12 22 2.0 3.6 .5 £.3 .6 2.9 1.6 121 54 44 11 15 2.0 3.6 .7 4 2.2 1.9 1.6 1.6 66 102 42 12 5.5 2.0 2.3 .5 5 1.7 1.3 1.6 1.6 112 56 | *0 12 5.5 2.3 1.8 .5 1.9 .9 2.4 1.6 27 64 12 4.S 2,3 1.4 .7 1.2 .7 1.7 1.9 56 53 34 16 4.0 e.o 1.2 1.6 .9 . .7 1.6 1.9 95 212 29 14 4.4 7 1.2 2.5 .7 .9 1.3 1.9 42 409 £5 12 5.5 2.3 1.4 1.4 10 .6 1.0 1.2 1.9 25 559 K\ W 5.5 1.8 2.5 1.4 2.5 3.1 2.5 1.4 11 1.7 1.0 1.2 1.9 12 379499 24 a 13 .4 1.0 1.2 Z.S 15 19 a 14 2.5 3.6 .4 1.0 1.3 2.0 13 304 17 15 3.1 2.0 2.0 .4 1.0 1.3 £.2 12 271 15 14 4.8 1.8 15 .4 1.3 1.3 2.2 10 , 239 15 14 4.8 2.0 2.0 1.4 .4 l.S 1.3 2.3 9.5 170 14 11 3.6 2.0 4.0 1.2 .4 1.7 1.3 2.3 9 192 13 9*5 4.4 2.0 £.5 .4 37 1.3 2.3 9 206 12 7 3.1 l.S 26 1.3 2.3 9.5 133 12 36 2.3 2.0 2.0 20 .4 1.7 1.3 3.2 14 111 12 SO 2.0 a.o 1.2 2.0 '1.8 .4 3.4 1.4 5,190 35 93 12 14 2.0 dS.O .9 .4 2.6 1.4 1,740 43 - 72 B 16 1.8 di.a 1.2 1.8 23 S.S 2.2 1.9 3,060 42 55 4.4. 7.5 l.S 1.8 1.6 1.8 2.6 1.9 2.9 7S7 23 37 4.0 6.5 2.0 1.4 1.4 25 1.4 1.3 47 397 16 14 4.8 7 2.0 .7 1.6 1.4 26 .7 1.4 7 234 151 12 5.5 B 1.8 .9 1.8 1.8 .9 1.7 1.6 267 137 12 13 9 2.7 1.6 28 2.9 1.4 2.3 178 69 12 18 8 2.5 1.6 1.6 1.4 29 1.7 1.4 1.7 262 16 12 7.5 i.e 1.4 1.4 .9 1.4 1.7 1.4 765 _ 31 12 7 l.E 1.4 .9 .7 51 1.0 1.4 439 - 3£ - 9.5 - 1.8 1.2 ~" Seoond- Runoff in Month foot-days Maximum MinlDfim Mean acre-feet 3B.5 3.2 0.4 ' 1.84 76 100.9 37 .5 3.36 200 Deceaber...... 101.0 47 J. 2 3.89 800 Calendar year 1942 ...... 26,580.2 2,330 ,0 72.7 92,600 11,398.9 3,190 1.4 367 22,550 Pfrtjmary i 1,645.0 266 9 58.8 3,260 4*428 559 10 143 8,780 596.7 44 . 4.0 ie.e 1,180 377.6 36 6.S 18.2 749 135.5 22 1.8 4.52 899 64.6 7 .7 2.08 188 60.8 4.0 .9 1.94 119 September...... 41.3 2.6 .8 1.3S 82 Bater ysar 1942-45 f ...... 18,958.1 3,190 .4 51.9 37,590 a Ko gage-height rseord; discharge interpolated. d Doubtful gage-height record; discharge interpolated. Tta» t»«iBi Pacific war time. To convert war time to standard tine, subtract 1 hour. fflJADALUPE CREEK BASIN 169 Alamitos Creek near Edenvale, Calif. Location^- Water-stage recorder, lat. 37°14'20H , long. 121°52'15H , in SW£ sec. 16, T. 8 S., R. 1 E., 0.4 mile upstream from mouth and 4 miles southwest of Edenvale. Altitude of gage, about 200 feet (from topographic map). Drainage area.- 35.0 square miles. Records available.- January 1930 to September 1943. Average discharge.- 13 years, 21.9 second-feet. / Extremes.- Maximum discharge during year, 2,390 second-feet Jan. 22 (gage height, 6.52 feetjy no flow during parts of Oct. 15, 16 (result of regulation). 1930-43: Maximum discharge, 2,670 second-feet Dec. 27, 1931 (gage height, 6.60 feet), from rating curve extended above 1,800 second-feet; no flow for several months each year except 1942 and 1943. Remarks._- Records fair. Small diversions above station. Flow regulated by Calero Reservoir (capacity, 9,000 acre-feet) and Almaden Reservoir (capacity, 2,500 f.cre- feet); water released during summer. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 5 8 8 B.5 90 6.5 13 17 26 22 20 15 2 3.9 8 7.5 8 87 5.5 15 16 24 22 20 16 S 3.7 9 7.5 8.5 69 5.5 15 16 11 22 19 16 4 3.5 9 - 7 8.5 41 7' 15 17 7.5 22 19 21 5 3.7 7.5 S.5 8.5 32 6.5 16 17 7 22 19 24 6 2.8 7.5 9.5 S.5 18 6.5 15 SO 12 22 19 25 7 2.2 8 S.5 8 15 6.5 15 22 16 22 17 25 8 2.2 8 8.5 8 13 9 16 18 22 22 19 23 9 2.0 7.5 18 8 9 19 16 18 19 22 18 23 10 1.4 7.5 12 8 10 35 16 18 8.5 22 18 22 11 2.0 7.5 11 8 IS 87 15 20 22 22 19 23 12 2.0 8 10 ' .5 19 55 15 20 22 22 19 23 13 1.4 S 8.5 .5 14 43 15 19 17 22 19 23 14 .8 8 8 .5 14 41 15 19 18 22 19 83 15 .S 8 S .5 14 42 16 24 20 22 19 22 16 1.3 8 8 .5 14 22 14 32 81 22 '19 23 17 1.4 9 8 ' .5 15 St 14 41 22 22 19 23 18 1.0 12 8 a 19 37 13 47 25 22 20 22 19 .7 18 8.5 a 19 20 12 40 25 22 20 20 3.2 30 8.5 8 19 15 12 19 22 22 81 18 21 6.5 25 8 331 18 14 12 38 22 22 21 16 22 81 20 8 567 17 13 11 16 22 83 21 16 23 84 15 8.5 801 12 12 11 7 22 84 20 16 24 19 8.5 14 226 10 11 14 6.5 22 19 19 15 25 14 S.5 19 117 11 10 16 19 22 20 19 16 26 13 B.5 18 73 17 ft 15 26 22 19 19 19 27 13 8 19 100 13 8.5 1« 29 22 19 19 19 28 16 8 SO 57 7.5 8 84 28 22 19 19 19 29 11 9 20 76 8 19 23 22 20 16 19 30 10 9.5 SO 199 _ 10 18 24 88 20 ie 80 31 7.5 - 19 130 - 10 24 80 15 Seccnd- Rtooff in Month fcct-days MaximuB Minima Mean arsre-feet 395 316.5 30 7.S 10.6 688 December...... 349.0 20 7 11.3 692 Calendar year 1942 ...... 9,783.6 379 . ? 86.6 19,400 March...... 091 26 1,160 81. 5 August. . . . September...... 605 28 IS 20.2 1,200 Water year 1942-43 ...... 9,548.5 801 .7 83.4 16,960 note.- Ho gage-height record June 81 to Jul? 20} dlieharg* computed on basis of recorded rwage in stage. Tiaiq Imgla; Pacific war time. JCo convert war tine tc standard tine, subtract 1 hour. 170 GUADALUPE CREEK BASIN Los Gatos CreeK at Los Gatos, Calif. Location.- Water-stage recorder and concrete 'control, lat. 37°13'15", long. 121°59'00", In SWt sec. 21, T. 8 S., R. 1 W., 700 feet upstream from highway bridge at Los Gatos. Altitude of gage, about 360 feet (from topographic map). Drainage area.- 40.0 square miles. Records available.- January 1930 to September 1943. Average discharge.- 13 years, 45.4 second-feet. Extremes.- Maximum discharge during year, 4,610 second-feet Jan. 21 (gage height, 12.07 feet); no flow during August and September. 1930-43: Maximum discharge, 7,110 second-feet Feb. 27, 1940 (gage height, 14.71 feet), from rating curve extended above 2,300 second-feet by-logarithmic plotting; no flow during part of most years. Remarks.- Records fair above 50 second-feet and poor below. Several small reservoirs and diversions above station. Discharge, in eeoond-feet, water year October 1943 to SepteHbT 1943 Day Oct. NOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.6 0.3 C.3 2.0 177 78 78 30 2 .3 .3 .3 1.8 143 73 73 26 3 1.0 .4 .2 1.7 118 75 69 26 4 .2 .S .2 1.7 99 80 65 24 5 .4 .S .3 1.2 89 95 74 21 6 .3 .3 9 1.2 S2 95 65 20 7 .2 .3 19 1.0 68 89 62 IS S .2 .7 8 1.0 85 814 58 17 9 .3 1.5 .7 1.0 75 406 53 16 10 .4 l.B .5 1.1 88 488 51 15 11 8 1.5 .5 1.0 64 312 49 14 12 5.5 1.5 .4 1.0 60 224 43 14 13 5 1.4 .5 1.0 57 176 32 14 14 7.5 1.2 1.2 1.0 56 160 29 14 15 3.1 9.5 1.1 1.0 54 140 29 14 2.5 0.5 16 1.7 9.5 1.1 1.9 54 125 29 13 17 1.4 51 1.1 4.8 52 152 28 22 IS .3 101 1.2 4.0 46 138 26 20 19 .2 34 1.1 1.0 44 121 25 15 20 .2 19 1.2 49 42 117 23 11 21 1.2 10 1.1 2,460 50 110 22 14 22 2.0 3.5 1.3 1,020 57 104 22 10 23 2.2 2.2 26 1,080 60 99 23 5 24 2.0 2.2 55 373 54 97 26 4.8 25 1.7 3.8 54 206 SB 94 25 5 26 1.0 .2 26 172 144 90 25 5 27 2.1 .7 13 188 103 85 40 12 28 10 1.1 9.5 143 84 83 67 4.4 29 11 1.1 10 295 130 41 3.8 30 7 .4 3.6 436 _ 99 33 3.8 31 .2 - 2.2 254 - 83 4.0 - Seoond- Runoff in Month foot-daya Maximum Minimum Mean 'acre-feet October...... 77.2 11 0.2 2.49 153 November...... 261.4 101 .2 8.71 518 December...... 249.6 55 .£ 8.05 495 Calendar year 1942 ...... 23,037.1 1,690 - 63.1 45,690 January...... 6,706.4 2,460' 1.0 216 13,300 February ...... 2,163 177 42 77.2 4,290 March...... '...... ,.. 4,432 488 73 143 8»790 April ...... 1,285 78 22 48.8 a. 550 May...... 435.8 30 3.8 14.1 864 June...... 75.0 ' 2.5 149- July...... 1S.S _ .5 31 August ...... 0 0 0 0 0 September...... 0 0 0 0 0 Water year 1942-43 ...... 15,700.9 2,460 0 43.0 31,140 Peak discharge.- HOT. 18 (4:30 p.m.) 348 sec.-ft.; Jan. 21 (EtSQ P.BU) 4,610 Me.-ft. ; Jan. 82 (9 p.m.) 3,600 sec.-ft.; Jan. 29 (7 p.m.) 698 sec.-ft.; Mar. Id (3 a.m. ) .5BS s-»e.-ft. 9..- Possibly very small flow occurred during part of a few days in September. a baslst Pacific war tine. To convert war time to standard time, subts-a-st 1 hour. GUADALUPE CREEK BASIN 171 Campbell Creek at Saratoga, Calif. Location.- Water-stage recorder and concrete control, lat. oVlS'lS11 , long.' 122°02'25", in Quito Grant, half a mile southwest of Saratoga post office, Santa Clara County. Altitude of gage, about 500 feet (from topographic map). Drainage area.- 8.8 square miles. Records available.- October 1933 to September 1943. Average discharge.- 10 years, 12.0 second- feet. Extremes .- Maximum discharge during year, 1,650 second-feet Jan. 21 (gage height, 4.80 feet), from rating curve extended above 300 second-feet by logarithmic plotting; mini mum daily, 0.1 second-foot Sept. 22, 23. 1933-43: Maximum discharge, that of Jan. 21, 1943; maximum gage height, 5 3": ol ' 27' 1940' no flow durlnS part of each year, except possibly 1941 and Remarks,.- Records fair except those for July 22 to Sept. 5, which are poor. Diversion and regulation above station by San Jose Water Works. Discharge, in second-feet, water year October 1942 tc September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 1.0 1.3 2.0 3.2 37 22 16 8.5 4.3 2.0 2 .9 1.5 2.0 2.7 31 20 15 8 3.9 2.0 3 .S 1.7 2.1 2.9 27 20 15 7.5 3.7 2.0 1- 4 .8 1.7 2.1 2.6 aS4 22 14 7 3.5 2.0 5 .9 1.3 2.1 2.4 a22 21 15 7 3.3 1.7 6 .S 1.3 3.1 2.3 a20 21 13 7 3.2 1.6 .9 7 , .9 1.4 2.6 2.4 a24 20 13 7 2.7 1.6 1.2 8 .9 1.4 2.3 2.4 a22 38 13 6.5 2.7 1.5 1.6 9 .S 1.5 2.1 2.3 al8 56 13 6 2.7 1.4 1.7 10 .9 1.4 2.0 S.3 a!6 58 12 6 2.7 1.2 1.8 11 1.7 1.4 2.0 2.Z a!5 48 12 5.5 2.8 1.2 1.6 12 1.5 1.3 2.0 2.2 14 39 11 ^5.5 3.2 01.3 1.7 IS 1.0 1.3 2.0 2.2 14 33 11 5.5 3.0 ol.l 1.5 14 1.0 1.4 2.0 2.2 13 30 10 5.5 a.o cl.l 1.6 16 1.1 2.1 1.9 3.2 12 27 11 5.5 2.4 cl.2 1.7 16 1.3 2.3 1.9 2.1 12 24 11 5.5 2.2 ol.l \ °°- 8 1.2 17 1.1 17 1.9 2.1 12 29 10 5.5 2.0 cl.4 .6 18 1.0 20 1.9 2.0 11 - 27 10 4.9 1.8 ol.3 . .6 19 .S 7.5 1.9 2.0 10 24 9.5 4.9 1.8 el. 6 .6 20 .9 4.S 1.9 17 10 22 9.5 4.7 1.8 cl.4 .5 21 .8 3.5 1.9 476 11 22 9.5 4.5 2.4 el. 2 a. 2 22 .8 3.0 2.0 145 11 21 9 4.1 2.4 d.l 23 .9 2.4 7.0 159 13 19 9 3.9 2.4 d.l 24 1.0 2.4 12 68 13 18 9 3.7 2.4 d.2 25 1.0 2.3 10 43 13 17 8.5 3.7 2.1 .4 8.5' 26 ' 1.1 2.3 6.5 33 42 17 3.9 2.1 > ol .4 27 1.3 2.6 4.6 28 31 16 10 3.7 2.1 .4 28 2.4 2.6 4.2 26 25 15 IS 3.7 1.8 .4 29 1.6 2.4 4.2 50 _ SI 9.5 3.5 2.0 .4 30 1.4 2.2 3.7 75 _ 18 9 , 3.9 2.0 d.2 31 1.2 - 3.0 50 - 17 4.1 - Second^- Ruroff in Month foot-days Maximum Minimum Mean acre-feet 33.6 2.4 O.E 1.08 67 99.3 SO 1.2 3.31 197 December ...... 100.9 12 l.S 3.25 200 Calendar year 1942 ...... 5,699.8 373 .£ 15.6 11,310 803 25 9 8 C May...... 166.2 8.5 5.36 24.8 _ .8 49 September ...... 26.6 1.8 . .1 .89 53 Water year 1942-43 ...... 3,448.4 476 .1 9.45 6,840 Peak discharge.- Jan. 21 (3:30 p.m.) 1.650 aec.-ft.: Jan. 22 (8 p.m.) 331 sec. -ft. s Jan. 2? (8 p.m.) 105 aeo.-ft. a No gage-height record; dlacharge computed on basis of records for Los Qatoa Creek: at Lea Gates, c Backwater from temporary dam below control, d Doubtful gage-height record; diaeharge estimated. Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour. 172 COYOTE CREEK BASIN Coyote Creek near Madrone, Calif. Location.- water-stage recorder, lat. 37010'00", long. 121°37'40", in northwest corner or san Jose Grant, a quarter of a mile upstream from highway bridgB at mouth of can yon, a quarter of a mile downstream from Las Anlmas Creek, and 2.8 miles northeast of Madrone, Santa Clara County. Altitude of gage, about 420 feet (from topographic map). Drainage area.- 193 square miles. Records available.- October 1902 to September 1912, December 1916 to September 1943. Average discharge.- 37 years, 79.1 second-feet. Extremes.- Maximum discharge during year, 5,450 second-feet Jan. 21 (gage height, 11.42 reetj; minimum. 28 second-feet (regulated)Jan. 19. 1902-12, 1916-43: Maximum discharge, 25.000 second-feet probably on Mar. 7, 1911 (record furnished by Duryea, Haehl & Oilman); no flow at times. Remarks.- Records good. No large diversion. Flow regulated by Coyote Reservoir (capacity, 30,000 acre-feet); water released during summer. Rating table, water year 1942-43 (gage height, In feet, and discharge, in second-feet) 3.2. 27 4.6 160 7.0 1,000 3.4 37 5.0 234 7.5 1,300 3.6 48 5.5 3 50 8.0 1,660 3.9 72 6.0 520 873 1,900 4.2 104 6.5 740 Discharge, in second- feet, water year October 1942 to Septeat«r 1943 Daj Oot. NOT. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 34 30 30 30 524 232 93 56 44 44 50 49 2 31 30 30 30 347 170 84 50 43 44 50 49 3 31 30 30 30 259 134 61 46 47 44 50 49 4 31 30 30 30 203 131 77 43 49 44 50 48 5 31 30 30 30 175 139 75 42 54 44 50 48 6 31 30 32 30 104 226 72 41 52 44 51 48 7 30 30 31 30 47 247 69 40 60 44 51 47 8 30 30 31 _ 30 63 603 68 40 68 44 51 47 9 30 30 31 30 84 i.seo 64 40 76 45 51 47 10 31 30 31 30 82 1,240 62 39 67 53 51 47 11 32 30 31 30 68 7S5 59 39 58 54 51 47 12 31 30 31 30 65 488 56 38 58 54 51 47 13 30 30 31 30 59 368 54 38 58 54 61 47 14 30 30 31 30 57 306 52 38 57 54 51 47 15 30 30 31 30 57 259 52 38 52 54 51 47 16 30 30 31 30 61 174 50 38 45 53 51 47 17 30 33 31 30 57 238 47 38 45 53 52 47 18 30 36 31 30 64 476 47 38 44 53 52 46 19 30 32 30 30 52 383 46 38 44 53 51 46 20 30 31 30 31 49 306 44 38 44 53 51 46 21 30 30 30 1,460 57 255 44 36 44 52 61 49 22 30 3O 30 469 100 222 43 36 44 52 51 50 23 SO 30 32 994 109 190 43 35 44 52 SO 50 24 30 30 32 805 107 163 42 35 44 52 60 62 30 30 33 410- 134 145 42 33 44 52 60 67 25 f 26 30 30 30 342 260 131 42 4S- 44 68 50 Si 27 30 SI 30 424 356 117 48 43 44 61 , 49 60 28 30 31 31 374 289 109 88 43 44 62 49 60 29 30 30 SI 350 . 114 70 43 44 51 49 60 30 3d 30 30 1,330 _ US 63 44 44 si- 49 60 31 30 " 30 1,040 '- 102. " 44 * si 49 * Seooad- Runoff in Month foot-days Maxim* Hiaiwta Mean acre- feet October...... 943 34 30 30.4 1,870 Uovember...... 914 36 80 30.5 1,610 December...... 953 33 30 30.V 1,390 Calendar year 1942 ...... 36,411 1,660 30 99.8 72.23O Jasuary 8,599 1,460 30 877 17,060 February ...... 3,879 S24 47 139 7,690 Baron...... \. .. 10,385 1,880 102 339 20,600 April...... 1,771 93 43 59.0 3,510 May.Uav ...... 1,258 66 35 4D.6 2,500 June...... 1,505 76 43 SO. 2 2,990 July...... 1,553 54 44 50.1 3,080 August ...... 1 564 88 49 50.5 8,100 September...... 1,498 60 46 49,9 8,970 Water year 1948-43 ...... 34,822 1,880 SO 95.4 69,070 Pacific war tin To convert war timts to standard ti*», COYOTE CREEK BASIN 173; Coyote Creek near Edenvale, Calif. Location.- Water-stage recorder and concrete control, lat. 37°16'15", long. 121°47'55", at aast boundary of Santa Teresa Grant, at "The Narrows," 1| miles northeast of Edenvale, Santa Clara County, and 7 miles south of San Jose. Altitude of gage,-about 190 feet (from topographic map). Drainage area.- 229 square miles. Records available.- October 1916 to September 1943. Average discharge.- 27.years, 43.0 second-feet: affected by storage and spreading since 1936. Extremes.- Maximum discharge during year, 5,350 second-feet Jan. 21 (gage height, 7.25 feet); no flow during part of June 3. 1916-43: Jfeximum discharge, 10.000 second-feet (unregulated) Feb. 10, 1922 (gage height, 12.8 feet, from flooctaarksj, from rating curve extended above 4,900 second-feet parallel to 1917 curve defined by current-meter measurements to 8,400 second-feet; no flow at times during each year. Remarks.- Records good except those for periods of no gage-height record, which are fair. Water pumped from wells along creek above station for Irrigation. Flow regulated by Coyote Reservoir (capacity, 30,000 acre-feet) and by detention In percolating reservoir 6 miles above station; water released during summer. Rating table, water year 1942-43, except periods of baetawter from moss (gage height, la feet, and discharge, In second-feet) 2,2 0,1 2,S SO 3.5 234 2.3 .7 2.9 42 3.7 34O 2.4 2,5 3,0 59 4.0 x 535 2.5 6 3.1 82 4.3 796 2.6 11 3.2 110 4.7 1,210 2.7 SO 3.3 146 5.1 1,71O Discharge, in second- feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. liar. Apr. May June July Aug. Sept. 1 13 813 0.7 0.6 591 229 90 44 9.5 815 19 7 2 11 13 ,7 .6 370 175 S2 38 3.5 17 19 a8 3 10 14 .7 s 275 132 75 34 3.5 12 SO 810 4 9 14 ,7 »O 22O 126 70 32 12 15 24 13 5 10 13 .7 .6 1S8 128 66 30 10 15 13 12 6 1O 13 ,7 ,6 139 aieo 64 28 15 13 4,1 11 7 11 13 ,7 .5 70 a23O 61 28 17 12 5,5 a!2 8 1O 13 .7 ,5 64 860O 59 26 24 9 12 a!6 9 10 13 0 .7 .6 80 81,500 57 24 31 7.5 12 a20 10 9,5 13 .7 .5 88 al,700 54 24 32 12 10 s3O 11 11 13 ,7 .5 68 88OO 50 24 26 24 16 a2O 12 11 13 .7 .5 64 a550 47 S4 34 22 IS a2o 13 11 18 ,,7 .5 56 a450 44 24 24 22 20 a!5 14 10 12 ,7 .5 54 83 5O 42 22 24 22 SO alO 15 10 13 .7 .5 52 aSOO 41 22 24 32 20 alS 16 11 14 .7 .5 53 aSOO 40 SZ -22 24 20 a2O 17 11 15 ,7 .5 50 a20O 38 22 20 24 2O a80 18 11 17 .7 .5 47 a5OO 37 22 20 24 SO a20 19 12 18 ,7 .4 44 8450 36 20 32 24 20 a20 20 12 17 .7 .5 41 a400 34 19 22 E4 SO 20 21 11 16 .7 1,210 42 aSOO 3E IS 22 20 SO a2O ' 2223 11 3.8 ,7 824 75 a250 31 15 24 17 20 a2o 11 .9 .7 1,350 1O3 a2OO 2S 14 3E 30 20 815 24 13 .8 .7 980 99 159 28 10 22 17 20 alO 25 14 .8 .7 452 107 154 28 8.5 23 20 20 BlO 26 13 .7 .7 364 197 135 28 10 a22 20 20 al5 27 13 ,7 .7 432 340 117 30 15 a22 20 SO 818 28 13 ,7 ,7 388 2§ 107 57 12 a!6 SO 19 a20 29 13 .7 .7 384 107 57 12 a7 30 18 a2O 30 13 .7 .7 1,110 114 53 13 al2 20 18 aSO 31 al3 - .7 1,170 ~ 102 - 14 - 2O 13 - Seeond- Runoff in Month foot-days Maximum Minimum Mean ao-e-feet October...... 351.5 14 9 11.3 697 November...... '...... 18 .7 10.1 .599 December ...... 21^7 .7 .7 .70 43 Calendar year 194E ...... 30,731'.O 1,480 .7 84.2 6<0,96O January 8,614.5 1,350 ,4 27S 17,090 February...... 3,S60 591 41 138 7,660 March...... 1O 947 1,700 102 353 21,710 April ...... 1*468 -90 28 48.6 2,890 May...... '670.5 44 8.5 21.6 1,330 June...... 575.5 32 3,6 19.2 1,140 July . .... 573,5 24 7,5 18.5 1,140 August ...... 540.6 24 4,1 17,4 1,070 September...... 477 80 7 15.9 946 Water year 1942-43 ...... 28,391,6 1,700 ,4 77.6 56,320 a Ho gage-height record} discharge computed on basis cf known range In stage and data furnished by Santa Clara Valley Water Conservation District, Bote,- Backwater from moss HOT, 23 to Dec. 7, Time batfani Paolflc,«mr time. T6 convert war time to standard time, subtract 1 hour. 174 ALAMEDA CREEK BASIN Alameda Creek near Nilea» Calif. Location.- Water-stage recorder and concrete control, lat. 37Q35'15", long. 121°57'35", in Arroyo de la Alameda Grant, an eighth of a mile upstream from I tghway bridge and li miles northeast of Nlles,, Alameda County. Altitude of gage, at out 100 feet (from topographic map). Drainage area.- 633 square miles. Records available.- October 1916 to September 1943. Average discharge.- 26 years (1916-19, 1920-43), 90.5 second-feet. Extremes.- Jfexlmum discharge during year, 7,290 second-feet Jan. 23 (gage height, 9.94 feet): minimum, 0.1 second-foot Aug. 15. 1916-43: Maximum discharge, 13,900 second-feet Feb. 10, 1922 (gage height, 12.44 feet, site and datum then in use), from rating curve extended above 7,600 second-feet; no flow at times. Remarks.- Records excellent except those for periods of shifting control, which are good. Flow regulated by Calaveras Reservoir (capacity, 96,900 acre-feet). Dlverelons for San Francisco water supply and other uses above station. Cooperation.- Gage-height record collected in cooperation with city of San Francisco. Discharge, in second-feet, water year October 1942 tc September 1943 Day Oct. Nov. Dec. Jan. Feb. Bar. Apr. May June July Aug. Sept. 1 0.8 0.8 13 33 450 350 105 42 22 1.3 0.7 1.4 .7 .9 14 32 326 314 97 38 21 1.3 .7 1.2 3 .6 1.2 14 30 365 297 39 34 19 1.3 .7 1.3 4 .6 1.3 13 29 3ie 297 32 32 17 1.3 .7 1.6 5 .5 1.2 13 28 305 293 85 31 17 1.3 ,7 1.9 6 .4 1,2 21 28 249 336 87 Z9 17 1.2 ,6 1.9 7 .4 1.2 32 29 252 332 80 28 17 1.2 .6 1.9 .4 1,£ 21 29 31C 314 82 23 16 1.2 ,7 2.3 .5 1.1 18 32 305 835 80 26 15 1.1 .6 2.6 10 .5 l.C 17 32 281 925 75 24 5 1.0 .6 2,7 1.0 1.1 16 34 269 601 70 24 3. 6.1 1.0 .6 2.4 1.0 l.J 16 34 257 330 64 24 3.0 ,9 .6 2.3 .3 l.S 16 34 24$ 285 59 23 2.7 .9 .5 S.6 .7 1,3 IE 35 214 257 58 23 2.6 .9 ,5 2,8 15 .7 2.6 IE 38 214 222 56 23 2.8 .9 .4 2.8 .7 2.4 IE 40 229 131 55 22 2,1 .9 .3 7 .6 57 13 4C 225 522 51 22 1.7 .9 .4 7.5 .6 233 14 40 222 1,160 47 22 1.7 .9 .4 7.5 .5 37 14 40 21£ 574 45 21 1.6 .9 .4 S 20 .4 35 14 20 204 433 44 21 1.6 .9 .4 7.5 21 .4 24 14 1,120 211 297 43 20 1.4 .9 .4 7 22 .4 25 14 3,460 233 253 41 23 .4 23 19 5,230 229 211 40 19 1.3 .9 .4 6,5 24 .4 19 51 1,720 314 131 40 18 1.2 .9 ;4 7 25 .7 17 133 706 328 163 38 16 1.2 1,0 .4 7 26 1.0 15 n 450 479 145 37 17 1.2 1.0 .4 7.5 27 .7 13 6E 428 629 130 38 17 1.2 .9 .7 7,5 PR 1.0 13 5E 346 433 113 76 18 1.1 .8 .9 7.5 29 1.0 14 5C 2SE - 139 160 51 19 1.3 ,3 1.3 7.5 30 .9 13 4C 1.13C " " 31 .8 35 880 - 122 Seccnd- Runcff in Mcnth foot-days Maximum Minimum Mean acre-feet 20.1 0.4 0.65 40 .3 20.3 1,210 December ...... 372 133 13 28.1 1,730 Calendar year 194S ...... 62,552.6 3,860 .4 171 124,100 20 529 32,550 February 3,326 629 204 297 16 ,510 10,827 1,160 118 349 21 ,480 1,877 105 37 62,6 3,720 May...... 741 42 17 23.9 1,470 Jurat. . ... 202.1 22 1.1 6.74 401 30.9 1.3 .7 1.00 61, 18.4 1.3 .3 .59 36 September...... 140.7 8 1.2 4.69 279 Water year 1942-43 .....",.., ...... 40,076.1 5,250 .3 110 79,490 Hote.- Shifting-control method used Oct. 1 to Jan. 21, June 17 to Sept. 30. Time baa la; Pacific war time. To convert war tflw* tc standard time, so(itrao-*: KERN RIVER BASIN Kern River near Kernville, Calif.' Location.- Water-stage recorder, lat. 35°56', long. 118°29', in NEi sec. 14, T. 23 S., R. 32 E., 3 miles upstream from Salmon Creek and 15 miles north of Kernville. Altitude of gage, about 3,550 feet (from topographic map). Drainage area.- 845 square miles. Records available.- January 1912 to September 1943. Average discharge.- 31 years, 730 second-feet, combined flow of Kern River -near Kernville and Kern River Ho. 3 Canal. Extremes.- Maximum discharge during year, 8,310 second-feet Jan. 22 (gage height, 12.57 feet), from rating curve extended above 6,200 second-feet; minimum, 1.0 second-foot Sept. 23. 1912-43: Maximum discharge, 9,690 second-feet (unregulated) Jan. 17, 1916 (gage height, 3.8 feet, datum then In use), from ratine curve extended above 4,100 second- feet; no flow at times during period July 31, 1924, to Feb. 7, 4925. Extremes do not include How In Kern River No. 3 Canal. Remarks.- Records good except those below 25 second-feet, v&ich are fair. Kern R'ver No. 3 Canal (p. 178) diverts water 1 mile above station. Cooperation.- Water-stage recorder graph and several discharge measurements furnished by v Southern California Edison Co., Ltd., in connection with a Federal Power Commission project. Discharge, is second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 2.1 2.6 2,6 2.1 12 16 1,040 2,490 3,780 960 253 2.4 2 2.6 2.1 2.1 2,1 5 15 1,100 2,590 3,250 923 204 2.4 3 2,2 1.8 i.e 1.9 3.2 63 1,150 2,640 2,570 934 135 2.4 4 2.4 2.6 1.9 1.9 2.7 352 1,160 2,630 2,080 981 76 3.7 5 2,2 2.2 1.9 , 2.1 2.8 744 1,200 2,530 1,700 1,060 39 2.4 6 2.2 2.6 1.8 2.1 2.6 657 1,190 2,560 " 1 ,510 1,100 L2 2.4 . 7 2.4 2.6 1.8 2.1 2.3 455 1,050 2,910 1,490 966 3.9 2,2 * O O 2.4 5.0 1.6 1.9 6,6 630 1,160 2,950 1,610 928 3.5 d2,2 9 2.4 5.2 1,6 1.8 2.7 5,400 1,050 2,660 1,750 970 2.7 d2.1 10 2.2 2.6 1.6 1.9 2.3 3,540 944 2,600 1,720 976 2.7 d2.1 11 2.6 5.0 1,4 2.1 2.3 2,270 87S 2,670 1,790 954 2.8 2.1 12 2.4 3.2 1.4 2.1 2.3 1,540 S34 2,530 1,710 939 2.7 2,1 13 5.2 5.0 1,4 1.9 2.3 1,260 796 2,360 1,460 858 2.7 2.1 14 2,8 2,8 1.4 1.8 2.3 1,110 820 2,190 1,300 815 2,7 2,1 15 2.4 2.8 1.4 1.8 2.7 998 825 1,980 1,270 810 2.7 2.0 16 2,8 3.2 1.4 1.8 4.5 844 903 1,770 1,420 726 2.8 1.9 17 2.6 2.8 1.6 1.9 7 1,440 1,010 1,670 1,580 682 2.8 1.8 18 2.4 3,8 1,6 1.9 5 3,380 1,130 1,490 1,920 624 2.8 1.8 19 2.2 68 1.6 1.4 6.6 1,720 1,300 1,410 2,030 533 2.8 1.8 20 2.1 3,6 1,6 2.4 23 1,340 1,350 1,420 1,800 462 2.8 1.6 21 2.2 3.6 i.e 1,630 160 1,180 1,370 1,540 1,610 418 2,8 1.3 22 2.2 3.4 1.6 3,610 277 1,100 1,520 1,880 1,4OO 383 2.8 1.3 23 2.2 2.8 2.2 2,920 181 960 1,710 2,320 1,190 364 2.8 1.3 24 2.8 2.8 457 648 207 883 1,800 2,980 1,070 333 2.8 1.4 25 2.6 2.8 14 888 111 868 1,840 3,600 976 318 2.8 1.5 26 2.4 2,8 3.0 202 59 908 1,720 4,050 934 297 2.7 1.5 27 2,2 2,8 3.0 120 47 944 1,760 4,300 934 303 2.,i 1.4 28 2,6 2.8 2.4 41 SB 1,030 2,120 4,150 1,010 339 2,6 1,3 29 2.8 1.8 2.2 27 1,110 2,180 4,430 1,060 357 8»e 1.8 30 2,4 ' 1.9 2.1 1S4 ^ 1,140 2,230 4,150 1,010 *48 2.6 1,8 31 2.4 2.1 78 - 1,040 - 3,840 ~ 294 2.« - Second- Runoff in _ loath ' root-days Maximum Minimum Mean ao re-feet October...... 76.4 3.E 2. L 2*43 160 November...... 149,0 68 1. 9 4.97 296 December ...... 504,7 437 1. 4 16.3 IjOOO Calendar year 1842 ...... 145,980.7 3,080 1.4 400 289,600 * January...... 7 ...... 9,661.3 3,610 1. 4 311 19,140 February...... 1,163,9 16*g 3 41.6 2,31O^ March...... 39,127 5,400 If £62 77,610 April...... 39,140 2,230 796 1,305 77,630 Bay...... 83,490 4,430 1,410 2,693 166,600 June...... 49,034 3,780 934 1,634 97,860 July...... 20,953 1,100 eV*tOQjl 676 41,660 August ...... 788.9 263 2. 1 25,4 1,660 September...... 56,0 2,7 1. S 1.87 111 Water year 1942-43 ...... ; 244,133.2 5,400 1. 3 669 484,200 Peak discharge.- Jan, 22 (2t30 *,m,) 8,310 seo.-ft.f Jan 23 (6 ».m.) 6,400 aee.-ft.f H«r. 9 (8 *. . w , -.- ~.vvr ~j. , r ..«4 r j.w |i »*«!» / u f-9±\i 9ov » x v * i imy &v \ d Doubtful gage-height record, dl«ebjtrg» Interpolated, 176 KERN RIVER BASIN Combined discharge, in aeoond-feet, of Kern River and Kern River No. 3 Canal near Kemville, Calif. water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 222 226 238 289 594 598 1.630 3,060 4,360 1,670 851 314 2 223 222 233 278 561 592 : ,690 3,160 3,860 1,540 303 311 3 220 219 233 259 529 643 1 ,740 3,210 3,180 1,550 734 312 4 218 240 231 255 508 939 1 ,750 3,400 2,690 1,600 674 308 5 217 231 . 217 256 520 1,330 1,790 3,100 2,310 1,680 637 305 6 215 232 195 251 514 1,240 1,780 3,130 2,120 1,720 605 304 7 215 229 207 239 523 1,050 : ,640 3,480 2,100 1,600 591 300 8 218 228 218 244 576 1,420 ] ,750 3,520 2,220 1,540 576 298 9 217 229 226 238 524 5,980 : ,640 a, 320 2,360 1,580 543 300 10 218 226 226 245 496 4,130 1,530 3,160 2,330 1,590 524 297 11 221 221 228 243 517 2,860 1,470 3,240 2,400 1,570 518 289 12 225 623 226 239 51 e 2,130 : ,420 3,090 2,320 1,550 512 283 13 232 225 224 237 527 1,840 : ,380 2,920 2,070 1,470 507 277 14 234 222 225 244 546 1,700 : ,410 2,750 1,910 1,420 517 271 15 231 223 221 247 572 1,590 1,410 2,540 1,880 1,420 524 266 16 229 227 219 247 586 1,430 1,490 2,330 2,030 1,330 499 263 17 227 227 227 240 586 2,030 ]L,590 2,230 2,290 1,280 473 259 18 223 270 227 211 585 3,970 ]L.710 2,050 2,530 1,230 459 £57 19 223 405 221 203 590 2,310 ] .,880. 1,970 2,640 1,130 448 253 20 222 272 218 249 606 1,930 1,930 1,980 2,410 1,06O 437 252 21 219 246 214 2,000 747 1,770 1,950 2,100 2,220 1,020 416 249 22 218 264 213 4,200 868 1,690 !3,100 2,440 2,010 981 402 246 23 217 264 333 3,520 77E 1,550 3,290 2,880 1,800 952 385 243 24 219 261. 1,020 1,250 799 1,470 j3,380 3,540 1,680 931 375 245 25 219 258 516 887 701 1,460 2,420 4,160 1,590 909 365 276 26 218 246 336 801 64« 1,500 2,300 4,610 1,540 894 353 278 27 214 241 326 719 637 1,540 3,340 4,860 1,550 900 339 271 28 219 254 336 637 60S 1,620 3,690 4,650 1,620 936 331 264 29 221 240 333 618 1,700 3,750 4,450 1,670 954 325 258 _ 3,800 4,160 1,620 939 324 253 30 220 237 304 751 1,730 " 31 223 296 666 - 1,650 - 3,860 891 320 Seoond- Runoff in Month foot-days Maximum Minimum Mean acre-feet October...... 6,857 234 214 221 13,600 November...... 7,308 405 219 244 14,500 December...... 8,687 1,020 195 280 17,230 Calendar year 1942 ...... T 302,886 3,410 195 830 600,800 January ...... 20,963 4,200 EOS 676 41,580 February...... 16,764 868 496 S99 33,250 March...... 57,372 5,980 592 1,851 113,800 56,650 2,800 1,380 1,888 112,400 May 99,250 4,860 1,970 8,202 196,900 June ...... 67,310 4,360 1,540 2,244 133,500 July...... 39,737 1,720 891 1,282 78,820 August ...... \ ...... 15,367 851 320 496 30,480 September...... 8,302 314 243 277 16,470 Watsr year 1942-43 ...... 404,567 5,980 195 1,108 802,500 Time basisi Pacific war time. To convert war time to atandard tine, subtract 1 hour. KERN RIVER BASIN 177 Kern River near Bakersfleld, Calif. Location,- Water-stage recorder and wooden control, lat. 35°25'54", long. 118°56'43", in SWi' Sec. 2, T. 29 S., R. 28 E., at mouth of lower canyon, 5 miles northeast of Bakers- field. Altitude of gage, about 470 feet (from topographic map). Drainage area.- 2,420 square miles. Records available.- October 1893 to September 1943. Average discharge.- 48 years (1893-1906, 1908-43), 996 second-feet. Extremes.- Maximum discharge during year, 21,701 second-feet Mar. 9 (gage height, 10.87 feet); minimum, 141 second-feet (regulated) Dec. 13. 1896-43: Maximum discharge, that of Mar. 9, 1943; minimum, 57 second-feet (regulated) In November 1924. Remarks.- Four power plants and many diversions for irrigation above station. Cooperation.- Records furnished by Kern County Land Co. Discharge,, in second-feet, water year October 1942 to September 1943 Das Oot. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 239 244 285 463 1,335 1,021 3,182 4,541 4,504 1,823 937 334 2 239 248 275 449 1,180 992 3,120 4,620 4,708 1,789 89f 329 3 242 246 274 432 1,055 988 3,135 4,479 4,057 1,757 85£ 326 4 243 246 278 398 986 1 »SQ9 3,145 5,005 3,474 1,763 eoe 319 5 244 257 275 369 938 2,222 3,149 4,743 3,096 1,794 76f 327 6 240 267 268 364 928 3,324 3,374 4,379 2,849 1,846 ' 7Bf 330 7 237 262 251 362 905 2,662 3,192 4,507 2,610 1,863 68T 329 8 232 260 254 354 90S 2 j367 3,320 4,690 2,626 l',756 64£ 316 9 228 258 261 349 966 10,635 3,560 4,550 2,653 1,701 621 306 10 226 255 276 346 914 11,891 3,191 4,284 2,742 1,753 59V 308 11 225 255 282 348 675 6,126 2,969 4,237 2,669 1,765 S6t 317 232 253 - 285 343 883 5,717 2,610 4,228 2,717 1,758 56? 308 13 233 247 221 327 883 4.44C 2,664 4,034 2,580 1,701 57! 309 14 222 248 269 322 886 3,780 2,631 3,832 2,395 1,614 54! 300 15 289 246 273 318 877 3,418 2,632 3,699 ' 2,306 1,570 534 296 18 230 247 297 317 910 3,055 2,699 3,414 2,343 1,530 55T 292 17 242 846 296 315 930 2,832 2,801 3,135 2,453 1,432 5ie 282 IS 243 248 285 308 919 11,228 2,923 3.O67 2,623 1,408 50E 288 19 244 282 290 302 917 9,350 3,169 2,859 2,762 1,333 494 283 20 237 340 276 276 916 6,049 3,407 2,760 2,787 1,251 48! 278 21 234 272 270 407 930 4,369 3,478 2,777 \ 2,638 1,186' 47S 278 22 240 252 265 7,817 1,110 3,573 3,542 2,906 2,362 1,106 464 275 25 241 311 275 11,654 1,408 3,289 3,707 3,221 2,170 1,050 463 261 24 239 308 373 8,284 1,361 3, 0781 3,911 3,652 1,981 1,021 436 267 25 245 366 1,256 2,563 1,353 2,947 3,968 4,313 1,863 1,001 42C 884 26 247 309 873 1,773 1 222 2,871 3,935 4,973 1,801 963 407 295 27 245 296 620 1,644 l',09B 2,837 3,807 5,368 1,700 950 394 893 28 245 290 534 1,446 1,062 2,847 3,943 5,459 1,580 962 382 897 29 249 287 520 1,323 w 2,948 4,446 5,202 1,732 980 352 291 30 247 288 613 1,325 _ 3,188 4,387 4,938 1,799 983 346 285 31 246 ~- 493 1,464 - 3,220 - 4,583 966 339 Seocnd- Rrrtoff in Month foot-days Maxima . Minima Mean an re-feet October 2J.6 238 14,650 November...... 411 192 271 16,130 December ...... 1,640 141 370 22,74O Calendar year 1942 ...... '...... 4,060 141 1,066 772,000 January...... 15,100 252 1,505 92,550 February...... X 449 754 1,023 56,880 March . 21 ",701 970 4/209 258,800 April...... 4,607 2,601 3,340 198,700 May...... 5,741 2j7££ 4 144 854,800 June...... 5,013 1,537 2*616 155,700 July...... 1 ,ovvOQO 944 1,431 86; 010 August...... 962 OOD««o 560 34,440 September...... 344 260 300 17,860 Water year 1942-43 ...... 21,701 141 1,673 1,211,000 Hote.- The figures of »»Tlmim and 1n1nua discharge as shown for each Month represent tb> Instantaneous values. Tim basl»> Pacific'war tian. To convert war tine to standard time, subtract x hour. 178 KERN RIVER BASIN Kern River No. 3 Canal near Kernvllle, Calif. Location.- water-stage recorder, lat. 35°54', long. 118°28', in NEi sec. 25, T. 23 S., RT3ZH)., 4 miles downstream from Intake and 12 miles north of Kernvllle. Altitude of gage, about 3,590 fest (from topographic map). Records available.- March 1921 to September 1943. Average discharge.- 22 yearsj 366 second-feet. Extremes.- Maximum daily discharge during year, 617 second-feet July 5-7: minimum daily, B.b second-feet May 30. 1921-43: Maximum dally discharge, 689 second-feet May 28, 1938; no flow at times. Remarks.- Records excellent. Canal diverts from left bank of Kern River in sec. 12, T. 23s7, R. 32 E. Water is used for power and returned to river 8 miles below station. « Cooperation.- Water-stage recorder graph and thirteen discharge measurements furnished oy aou'cnern California Edison Co., obtained In connection with a Federal Power Com mission project. Discharge, in second-feet, water year October 1-942 to September 1943 Day Oct. NOV. Deo. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 220 883 235 287 582 582 589 571 579 614 598 312 2 220 820 231 276 556 577 583 571 612 614 599 309 3 218 217 231 257 526 580 588 570 612 614 599 310 4 816 237 229 253 505 587 589 570 613 616 598 305 5 815 829 215 254 517 585 589 570 614 617 598 303 6 213 889 193 249 511 587 588 567 614 . 617 593 302 7 213 886 205 237 521 591 589 566 614 617 587 29S S 216 225 216 242 569 590 589 566 614 615 573 296 9 215 226 224 236 521 583 589 565 614 614 540 293 10 216 223 224 243 494 588 589 565 614 614 521 295 11 21S 218 227 241 515 688 589 565 614 613 515 287 1?. 283 220 225 237 514 589 588 564 614 . 611 509 281 13 829 822 223 235 525 590 587 563 614 609 504 275 14 231 219 224 242 546 590 586 560 614 606 514 269 15 229 220 220 245 569 590 585 560 614 607 521 264 16 286 224 218 245 581 590 585 558 612 605 496 261 17 224 224 225 238 581 589 584 556 610 603 470 257 1ft 281 266 225 209 680 586 582 556 609 60S 4*56 255 19 281 337 219 2oa 583 588 580 556 609 601 445 251 20 220 sea 216 247 585 590 579 558 608 600 434 250 71 217 242 212 469 587 590 879 559 609 599 413 248 W. 216 ara. 211 594 591 S91 577 558 6O9 598 399 245, 23 215 261 331 596 591 591 576 559 609 698 382 242 ?4 216 258 587 599 592 591 576 556 610 598 372 i 244 25 216 255 502 599 590 591 576 556 611 597 362 274 26 816 243 333 599 590 591 576 556 611 597 350 276 27 212 238 323 599 590 591 575 556 612 597 337 270 28 216 251 334 596 587 591 574 499 613 597 328 263 9Q 218 238 331 591 _ 589 573 16 614 597 322 257 818 235 302 597 - 589 572 8.5 614 597 321 ' 252 31 821 ~ 294 594 - 589 - 19 - 597 317 Second- Runoff in Month foot-days 1 Maxima Minnow Mean acre-feet gig S19 7,155 337 Deceaber...... 8,185 687 193 864 16,250 Calendar year 1942 ...... 156,681 60(1 24 430 311,200 ZBK. 592 494 SO &40 1 *7 Afifi 589 KfTQ May...... 697 >x-\ ft September...... :...... 8,249 312 242 875 16,360 Hater year 1948-43 ...... 160,407.5 617 8.5 439 318,200 Pacific war time* To convert war time tc standard tine, aubtrrnt 1 boor. KERN RIVER BASIN 179 Canal at Tilley Creek, Calif. Location.- Water-stage recorder, lat. 35°42", long. 118°27', In NWi sec. 4, T. 26 £., RT~3S~E., at point where canal crosses Tilley Creek, three-quarters of a mile scuth of Kernville. Altitude of gage, about 2,570 feet (from topographic map). Records available.- January 1910 to September 1914, October 1925 to September 1943. Average discharge.- 18 years (1925-43), 358 second-feet. Extremes.- Maximum daily discharge during year, 568 second-feet June 14-16, 22-24; minimum dally, 2.9 second-feet May 15. 1925-43: Maximum daily discharge, 605 second-feet June 3-5, 1927, May 22, 1?36; no flow at times. Remarks.- Records excellent. Canal diverts water from Kern River half a mile below Kern- vine to supply Borel hydroelectric plant of Southern California EdlS9n Co., 10 miles below station, at which point water is returned to Kern River'. Cooperation.- Water-stage recorder graph and several discharge measurements, furnlsted by southern California Edison Co., obtained in connection with a Federal Power Comrfsslon project. Discharge, in second- feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. liar. Apr. May June July Aug. Sept. 1 209 226 251 331 557 561 561 13 564 563 564 309 2 209 224 248 320 558 561 559 1O5 564 563 563 305 3 210 219 245 297 559 559 561 560 564 563 863 304 4 208 237 245 %82 557 558 562 551 565 563 561 298 5 208 235 234 283 557 556 562 549 565 563 559 295 6 2O7 234 204 279 557 557 561 549 565 564 562 293 7 205 231 212 264 558 558 559 549 565 563 562 288 8 2O4 230 223 268 558 558 558 549 567 563 549 283 9 203 231 236 261 558 545 556 549 565 564 547 '2S5 10 204 229 236 264 558 547 557 547 565 565 526 2S2 11 208 222 24O 264 557 546 558 546 565 565 528 273 12 212 222 239 255 5S8 551 557 547 567 565 522 262 13 218 226 235 253 558 551 557 549 567 565 517 254 14 225 226 234 257 557 551 557 450 568 565 521 251 15 226 226 233 265 557 555 557 2.9 568 565 535 24S 16 223 232 230 269 558 557 557 112 568 564 516 246 17 219 230 232 268 558 555 556 545 567 564 490 244 18 217 266 240 234 558 539 556 552 567 564 475 243 19 217 382 233 207 558 545 558 552 567 563 462 240 20 215 366 229 256 562 555 556 556 565 563 451 238 21 213 265 226 443 562 557 555 556 567 564 435 236 22 211 277 222 531 562 557 556 557 568 565 419 234 23 211 286 27S 529 559 557 557 557 568 565 4O2 220 24 214 2SO 543 532 559 558 556 558 568 565 388 229 25 216 277 545 534 559 559 555 559 466 565 379 254 26 216 266 447 535 561 561 555 558 4.6 567 370 265 27 214 256 385 545 561 561 555 559 120 567 355 263 28 215 264 394 555 562 561 557 562 567 567 339 251 29 21S 256 389 555 _ 561 557 564 567 567 332 260 30 220 252 363 555 - 561 537 563 564 565 330 243 31 224 ~ 341 556 ~ 561 " 563 ~ 565 321 " Second- Ruroff in Month foot-days Maximum Minimum Mean acre-fast October...... 6,619 226 203 214 13,130 November...... 7,572 3S2 219 252 15,020 December...... 8,812 545 204 284 17,480 Calendar year 1942 ...... 156,395 576 IS 428 310,200 January...... 11,247 556 207 363 22,510 February...... 15,643 562 557 659 31,030 arch...... 17,219 561 539 655 34,160 April ...... 16,705 562 537 587 33,130 May.U^« ...... 15,078.9 564 2.9 486 39,910 June ...... 15,877.0 568 4.0 589 31.490 July...... 17,499 567 563 664 84,710 August ...... 14,637 564 321 478 89,030 September...... 7,896 309 229 863 16,660 Rater year 1942-43 ...... 164,804.9 568 2.9 424 307,000 Pacific war time. To convert nap time to standard tine, subtract 1 hour. 180 KERN RIVER BASIN South Fork Kern River at Isabella, Calif. Location.- Water-stage recorder, lat. 35°40', long. 118°28', In NWi sec. 20, T. 26 8., R. 33 E., at Isabella, a quarter of a mile upstream from mduth. Datum of gage is 2,484.3 feet above mean sea level (from river-profile survey). Drainage area.- 985 square miles. Records available.- October 1910 to September 1913, January 1929 to Septana>ar 1943. Average discharge.- 14 years (1929-43), 115 second-feet. Extremes.- Maximum discharge during year, 2,990 second-feet Mar. 9 (gage height, 6.99 reet, affected by backwater from Kern River); minimum, 2.2 second-feet Sept. 18. 1929-43: Maximum discharge, 4,100 second-feet Feb. 7, 1937, from rating curve extended above 1.600 second-feet, verified by velocity-area study: maximum gage-height, that of Mar. 9, 1943; minimum, 0.3 second-foot July 26, 1931. < Remarks.- Records fair. Many diversions above station for irrigation considerable re- turn flow. Discharge, in second-feet, water year October 1942 to Septerhar 1943 Day Dot. Nor. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 11 13 IS 98 177 184 624 866 314 33 24 16 f. 11 13 16 95 1S6 179 632 660 294 32 16 16 3 11 13 16 94 140 182 669 861 290 36 21 16 11 13 18 90 132 287 673 906 266 33 23 16 S 11 13 19 91 128 390 683 390 269 32 21 18 6 12 14 19 89 132 446 709 315 244 31 21 18 1 12 14 20 87 132 407 690 792 226 31 16 16 a IS 14 19 87 138 362 S28 762 194 27 11 12 9 11 14 19 86 142 1,400 670 724 177 11 10 12 13 19 86 132 1,610 690 683 164 26 10 6.5 11 12 13 18 SS 130 1,060 543 662 170 24 7.5 7.5 1? IS 13 19 76 134 634 628 154 24 7 19 13 12 13 19 70 136 713 483 586 138 26 7.5 le 14 12 13 19 62 138 640 483 5S3 138 24 11 19 15 12 14 19 56 144 665 629 624 130 19 11 16 12 14 19 S3 ISO 629 648 616 122 16 11 16 17 11 14 18 51 1S2 619 693 496 110 - 16 10 9 18 12 14 17 SI 1S4 1,360 624 460 9S 14 12 701 398 90 14 15 6 19 13 ' 14 17 53 1S6 1,030 20 13 18 56 * 168 S02 766 362 77 12 19 12 14 19 62 164 690 762 343 62 11 21 6 22 13 IS 19 700 230 644 763 332 67 10 20 13 23 13 16 19 1,200 263 676 802 326 62 17 17 17 24 13 15 22 978 244 624 833 321 46 25 20 18 25 13 15 125 469 244 496 833 381 38 20 20 17 26 12 IS 133 321 209 496 816 343 32 14 20 16 14 IS 113 259 196 606 762 345- 32 14 18 18 28 14 15 106 219 191 638 762 360 31 17 29 13 15 104 194 594 866 339 3E 13. 19 17 13 3.6 106 186 _ 636 860 896 33 11 19 16 31 13 98 189 - 640 " 11 "* Second- Rnaof f in Month foot-days HasJUrom mourn* Mean acre-feet October . 378 14 760 421 16 13 1 14.0- 835 December...... 1,226 188 16 39.6 2,480 Calendar year 1942 ...... 44,007 704 10 121 87,280 6,293 1,200 61 203 12,480 Haroh...... 39,200 16,996 906 321 35,710 31 8,070 662 36 10 21.0 1,290 492 24 7 15.9 976 September...... 407,3 19 4.C 13.6 808 Water year 1942 -43 ...... 75,689.3 1,510 4.0 807 150,100 F.eific war tlae. To convert war time to standard ttee, aubtrH*t 1 hour. TULARE LAKE BASIN 181 Tulare Lake in Kings County, Calif. Location.- Staff ^ge, lat. 36°03', long. 119°44', at southwest corner sec. 31, T. 21 S., K.'2i E., 12 miles southeast of Stratford: at times staff gages at other locations / used. Datum of gages Is at mean sea level. Records available.- February 1937 to September 1943. Iferch 1906 to September 1920 (incomplete) at several other sites, at different data. Extremes.- Maximum elevation observed during year, 196.1 feet, June 7-12. T50B-43: Maximum elevation, 196.8 feet June 27, 28, 1941; lake dry or practically so during parts of 1906, 1914, 1916, 1919, and each year of 1920-22, 1924-37. Lake elevation of June 27, 28, 1941, was highest known since about 1890. Remarks.- Tulare Lake receives water from Kings, Kaweah, and Tule Rivers during hlgh- water periods and occasionally from Kern River, Deer Creek, and several small Inter- mi ttest streams. Its boundaries have-been greatly altered In recent years by con struction of levees and other reclamation work. Elevation, at lowest point of lake Is about 179 feet above mean sea level. During 1943 flow into lake started about Jan. 23 and stopped aboiit June 26; temporary drops In stage during that period were caused by levee breaks. At highest stage In June, area of lake was reported to be about 112,000 acres and contents about 1,300,000 acre-feet. Cooperation.- Qage-height record obtained under supervision of Roy L. Way and furrlshed by Tulare Lake Reclamation District No. 749. Elevation, In foot, wator yoar October 1948 to September 1943 Dajr Oct. Nov. Dec. Jan. Fab. Mar. Apr. May Juno July Aug. Sept. 1 192.0 192.4 192.3 192.3 193.6 1S9.4 193.6 195.1 195.8 195.6 194.8 193.8 2 198.0 192.4 192.3 192.3 193.7 189/4 199.8 196.2 195.9 196.6 194.7 193.7 3 192.1 192,4 192.3 192.3 193.7 169,4 193,9 195,8 195,9 196.6 194,8 193.7 4 192.1 192.4 198.3 192.3 193.8 189.4 194,0 194.9 196,0 195,5 194.8 193.6 5 192.1 192.4 192.3 192,3 193.8 189.4 194.2 194.9 196.0 195.5 194.7 193.6 6 192. S 198,4 192.3 192.3 193.8 189.5 194,1 195.0 196,0 195.5 194.7 193.6 7 192,8 192.4 192.3 192.3 193,9 189.5 193.5 195.1 196,1 195,6 194,7 193.5 8 192.8 192,4 192.3 192,3 193.7 189.6 193.3 195.0 196.1 196.4 194,6 193.5 9 192.2 192,4 . 192.3 192.3 191.0 189,7 193,4 195.1 196.1 195.4 194.6 193.4 10 192.3 192.4 192.3 198.3 189.6 189,8 193.5 195.1 196,1 195.4 194.6 193.4 11 192.3 192.4 192.3 192.2 189.8 190,0 193,6 196.2 196.1 195.4 194.5 193.4 12 192.3 192.4 192.3 192.2 189.2 190,3 193.7 195.2 196.1 195.4 194.5 193.3 13 192.3 198,4 198.3 198.8 189.2 190.6 193.8 195.2 196.0 195.4 194.5 193.3 14 192.3 192.4 192,3 192.2 189.8 190.8 193.9 195.2 196.0 196.3 194,5 193.2 15 192.3 192.4 192.3 198.2 189.2 191.1 194,0 196.2 196.0 195,3 194,4 193.2 16 192.3 198.4 192,3 192.2 189.2 191.2 194.1 195.2 196,0 195.2 194.4 193.2 17 192.3 192.4 192,3 198.2 189.2 191.4 194.1 195.1 196.0 195.2 194.3 183.1 18 192.4 192,4 192.3 192,2 189.2 191.5 194.8 195.1 196.0 195.8 194.2 193.1 19 192,4 192.3 192.3 192,2 189.2 191,5 194.3 195.1 195.9 196,1 194.3 193.0 20 192.4 192.3 192.3 192.8 1B9.8 191.8 194.3 195,1 196.9 195.1 194.2 193.0 21 192.4 192.3 192.3 192.2 189.2 192.1 194.4 195.1 196,9 195.1 194.2 193,0 22 192.4 198.3 192.3 192.2 189.8 192,4 194.6 195.1 195.8 196.0 194.1 193.0 23 192,4 198.3 198.3 198.3 189.2 192.6 194.6 195.1 195,8 195.0 194.1 193.0 24 192,4 192,3 192.3 192.4 189.3 192,6 194.6 195.2 195 .fl 195.0 * 194.0 193.0 25 192,4 192.3 198.3 192.7 189.3 192.8 194,2 195. S 195.8 195,0 194.0 192,9 26 198.4 192.3 192,3 19S.O 169.5 192,9 194.6 195.3 195.7 194.9 194.0 198.9 27 192.4 192.3 192.3 193,2 189*41 193.1 194,7 196.3 196.7 194.9 194.0 192.9 28 192.4 198.3 192.3 193.3 189.4 193,2 194,8 195 ,.4 195.7 194,9 194,0 192.9 29 192.4 192,3 198.3 193.4 4. 193.4 194.9 195,4 196.7 194.9 193.9 192.9 192,4 198.3 192.3 193,6 193,4 195 ,« 196.6 194.8 193.8 192.8 -3130 195,0 192,4 * 198.3 193.6 " 193.5 - 195,7 " 194.8 193.8 "" 3Ha» ba»l»f Paelfle n*r tt*». To oonrert war tia* to standard time, subtract 1 boor. 182 TULARE LAKE BASIN North Fork of raddle Pork Tule River near Springville, Calif. Location.- Water-stage recorder, lat. 36°11', long. 118°42', in sec. 23, T. 20 S., R. 30 E., 1 mile upstream from mouth and 7.8 miles northeast of Springville. Altitude of gage, about 2,850 feet (from topographic map). Drainage area.- 39.5 square miles. Records available.- November 1939 to September 1943. January 1909 to December 1912 at site 2 miles upstream. Extremes.- Maximum discharge during year 2,200 second-feet Mar. 9 (gage height, 7.39 feet), from rating curve extended above 300 second-feet by logarithmic plotting; mini mum, 2.3 second-feet Nov. 11. 1939-43: raximum discharge, that of Mar. 9, 1943: minimum, 1.7 second-feet Dec. 23, 1939. Figure of maximum dally discharge, 5,000 second-feet (estimated) Jan. 14, 1909, published in Water-supply Papers 331 and 047, is believed to be too high. Remarks.- Records good below 400 second-feet and fair above. Pacific Gas & Electric Co. conduit near Springville divert^ water 2£ miles upstream (see p. 184). Cooperation.- Water-stage recorder graph furnished by Pacific Gas & Electric Co., in connection with a Federal Power Commission project. Eating tables, water year 1942-43 (gage height, In feet, and discharge,in second-feet) Oet. 1 to Jan, 28 Jan. 22 to Sept, 30 1.8 1.9 2.4 12 3.6 72 1.9 3.0 4.5 4238 1.9 2.8 2.6 16 3.9 104 2.2 8.5 5.0 400 2.0 4.0 2.7 21 4.2 146 2.6 17 5.f 642 2.1 5.6 2.9 29 4.4 180 2.8 28 6.0 970 2.2 7.6 3.1 39 4.6 222 3.2 50 6.6 1,360 2.3 10 3.3 60 4.8 274 3.6 84 7.C 1,810 4.0 134 Discharge, in second-feet, water year October -1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 2.6 2.5 2.6 7 28 16 164 222 130 12 11 .7 2 2.6 2.4 2.6 7 22 16 170 217 117 12 10 .7 S 2.6 2.7 2.6 6 20 19 168 230 96 12 7.5 .7 4 2,6 6,8 2.5 .5.6 18 55 164 238 79 12 7 .7 5 2.6 2.6 2.5 5.5 18 180 170 212 64 - 12 7 .7 7 ' 6 2,6 2.5 5,6 5 17 166 159 212 69 11 .7 7 2.6 2.4 3.6 6 17 112 144 217 60 11 ' 7 .7 8 2.6 2.4 3.3 5 25 321 166 212 63 11 6.6 .9 9 £.4 2.4 3,0 5 19 1,570 145 184"190 63 11 6.5 .9 10 2.6 2.4 2.8 4.8 18 1,100 164 60 11 6.5 .9 11 2.6 2.4 2.8 4.8 18 614 124 18S 61 11 6.5 .7 12 2.8 2.4 2.7 4,6 18 442 119 172 54 11 4.9 i .7 13 2.8 2.7 4.6 19 373 117 163 47 11 4.7 .7 14 2_7 2.*4 2.7 4.5 23 348 116 ISO 45 11 4.7 .7 15 2.6 2.« 2.7 4.5 , 26 316 113 133 45 11 4.5 .7 16 2.5 2.7 2.6 4.5 27 263 126 119 43 11 4.6 .7 17 2.5 3.0 2.6 4.5 26 470 137 104 44 11 4.5 .7 18 2,4 19 2.7 4.3 24 980 160 93 43 11 .7 19 2.4 36 2.7 4,5 24 464 155 88 41 11 4~.S .7 20 2.4 7.6 2.6 5.5 26 366 152 91 39 11 4.6 .7 21 2.4 6.5 2.6 260 37 306 155 99 38 11 4.5 .7 22 2.4 6.5 2.6 672 40 266 176 112 35 11 4.7 .6 23 2.4 4,8 29 469 36 225 193 128 25 11 4.7 .5 24 2.5 2.7 198 190 42 198 198 150 21 11 4.7 .5 25 ' 2.6 2.6 60 123 27 186 195 168 18 11 4.7 .7 26 , 2.S 2.5 £5 98 22 180 isa 170 16 11, 4.7 4.7 27 2.6 2.3 18 86 20 178 IBS 168 15 11 4.5 4.7 28 2.7 2.8 14 61 17 186 220 157 14 11 4.5 4.7 29 2.7 2. IS 13 29 188 220 144 IS 11 4.5 4.7 30 2.6 2.6 8 64 186 217 126 IS 11 4.7 4.7 31 2.6 6 42 164 121 11 4.7 Second- Runoff in Month foot-days tfaxittw Minimum Mean acre-feet Ooto 79.4 2.9 - 2.4 2.56 157 Nova 144.9 39 2.4 4.83 287 December ...... 433,9 198 2.5 14,0 861 Calendar year 1942 8,398.3 198 - 2.4 86.7 18,640 Janu ary 2,096.1 572 4.S 67.6 4,160 Febr 674 42 17 24.1 1,340 Hare 10,460 'eso IS 337 2O, 730 Apri 1...... 4,831 113 9,680 May. 4,6(72 236 88 ISO 9,860 June 1,460 130 12 48.7 2,900 July 346 12 11 11,8 686 Augu st...... 174.7 11 4.5 5.64 347 SeptBfflber...... 141.0 4,9 4.6 -4.7O 280 «ater year 194E-43 ...... 25,803.0 1,570 2.4 70.7 51 ,190 FM& diseharra.- Dee. 24 (8 a.*.) 473 see.-ft.t Janv 22 (4 a.m.) 1,080 -seo. -ft.; Jut. 23 (5 a.m.) seo. -ft. [ H«r. 17 (lliSO p.m.) 1,960 aeo.-ft. r<) 0 Tule River near Portervilie, Calif. Location.- Water-stage recorder, lat. 36°05', long. 118°55', in NWJ sec. 25, T. 21 S., R. 2tt K.', at highway bridge, 1 mile upstream from South Fork'and 6 miles east of Porter- ville. Altitude of gage, about 580 feet (from topographic map). Drainage area.- 266 square miles. Records available.- May 1901 to September 1943. " _ Average discharge.- 42 years, 149 second-feet. Extremes.- Maximum discharge during year, 13,500 second-feet in main channel plus 2,000 second-feet (estimated) in overflow channel 0.2 mile east, Mar. 9 (gage height, 11.3 feet), from rating curve extended above 4,000 second-feet on basis of velocity-area studies and logarithmic plotting; minimum, 4.8 second-feet Oct. 7. 1901-43: Maximum discharge, that of Mar. 9, 1943; no flow during parts of 1934 and 1935. Remarks.- Records good except those above 5,000 second-feet, which are fair. Mean daily discharge for Mar. 9, 18 was somewhat higher than figures show below on account of unmeasured overflow. Several small diversions above station. Power is developed on Middle Fork and tributaries. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 6 a!3 42 83 48S 282 654 61S 352 10S 32 16 2 6 13 40 S3 412 275 639 610 341 104 33 16 3 6 14 39 75 353 277 628 659 316 10 1 32 16 4 6 23 41 69 312 407 607 766 292 100 31 15 -5 6 28 40 68 277 1,100 632 625 26S 95 31 16 6 5 26 37 64 261 1,140 720 607 252 91 30 16 7 4.9 26 43 64 254 723 6 IS 596 243 S4 29 16 8 5 25 43 61 461 1,580 792 585 235 ei 28 16 9 5 25 42 59 521 8,120 766 541 233 79 27 16 10 6 25 41 57 317 4,350 672 520 228 76 23 16 11 7 24 41 56 277 3,000 650 504 224 75 23 16 12 8.5 23 40 54 275 1,720 621 484 220 70 21 17 13 9 22 40 53 277 1,300 610 456 220 65 21 16 14 9 21 40 55 284 1,160 607 434 214 63 20 15 15 9.5 24 39 55 298 1,030 571 413 200 61 20 15 16 9.5 31 39 55 295 864 585 394 190 ,61 20 15 17 10 32 39 54 286 1,250 600 370 1S1 61 20 15 18 9.5 48 42 53 277 5,450 600 346 176 57 20 15 19 9.5 158 41 49 263 1,940 607 331 172 54 19 15 20 9.5 75 41 52 266 1,370 578 324 167 51 19 16 21 10 57 40 946 293 1,120 568 324 161 50 19 15 22 9.5 52 40 3,860 358 1,050 589 334. 154 49 20 14 23 9.5 48 60 4,940 394 948 603 344 150 46 21 24 9.5 47 a550 1,250 717 872 . 618 367 143 45 20 14 25 11 44 a400 685 414 808 610 391 140 44 26 11 42 a200 562 350 770 ' 571 396 135 43 IS 15 27 11 39 a!40 521 324 743 554 38S 128 42 18 2R 12 47 119 43S 298 739 628 3S3 124 40 29 a!3 46 111 404 . 732 625 370 118 39 IS 582 _ 800 610 349 113 36 30 a!3 44 100 " 31 a!3 - 89 518 - 686 - 336 - 34 17 Seoond- Runoff in Month foot-days Maximum Minimum Mean acre-feet 269.4 13 4.9 e.69 534 1,144 158 13 38.1 2,270 December ...... 2,659 550 37 85.8 5,270 Calendar year 1942 ...... 51,383.5 7<58 4.4 141 101,900 15,925 4,940 49 , 514 31,590 9,602 717 254 343 19,050 46, 606 8,120 275 1,503 93, 440 April...... 18,733 792 554 624 37,160 May...... /...... 14,165 766 324 457 28,100 . 6,090 352 113 203 12,080 July...... 2,005 108 34 64.7 3.9SO 706 33 17 22.8 1,400 September ...... 465 17 14 ,15.5 922 Water year 1942-43 ...... ^18,369.4 8,120 4.9 324 234,800 Peak discharge.- Jan. 22 (5 a.m.) 6,830 sec. -ft.; Feb. 24 (7 a.m. ) 1,270 sec. -ft.; Mar. 6 (7 /a.m.) sec.-ft.; May 3 (11 p.m.) 1,390 sec.-ft. Peaks for Mar. 9 and 18 include estimated flow of 2,000 second-feet In overflow channel, a No gage-height record; discharge computed on basis of recorded range in stage and records for forks of Tule River. Hote. - Computed from graph based on one or two daily gage readings, Dec. 28 to Feb. 18. Time tasis: Pacific war time. To convert war time to standard time, subtract 1 hour. 184 TO1ARE LAKE BASIN Pacific Gas & Electric Co. cendult near Sprlngville, Calif. Location.- Water-stage recorder, lat. 36°12', long. 118°39', In NWi sec. 18, T. 20 S., R. 31 K., half a mile downstream from Intake and 10 miles northeast of Sprtngirllle. Alti tude of gage, about 4,000 feet (from topographic map). Records available.- October 1939 to September 1943. Extremes.- Maximum dally discharge during year, 63 second-feet Mar. 5, 6; minimum daily, 1.9 second-feet Mar. 15. 1940-43: Maximum daily discharge that of Mar. 5, 6, 1943; minimum -daily, 0.9 second-foot Dec. 30, 1940. Remarks.- Records good. Conduit diverts from left bank of North Forte o* Middle Fork "Pule River in sec. 18, T. 20 S., R. 31 E. Water is used for power development at Tale River powerhouse of Pacific Gas & Electric Co. 3f miles downstream .and Is then returned to river. Cooperation.- Water-stage recorder graph furnished by Pacific Gas & Electric Co., in con- nection with a Federal Power Commission project. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 14 15 16 £5 61 60 a61 61 60 a52 21 16 2 14 14 16 S3 56 59 61 61 60 a52 21 17 3 14 16 16 22 51 61 a61 61 60 a50 22 17 4 14 16 al6 Si 49 62 a61 61 60 a49 22 16 5 14 16 al6 20 48 63 a61 61 60 a48 23 17 6 14 15 13 20 49 63 a61 61 60 45 22 16 7 14 15 15 19 51 62 a61 61 59 43 22 16 fl 14 16 15 19 54 52 a61 61 59 42 22 16 9 14 15 15 18 48 7.5 a61 61 59 41 21 16 10 14 15 15 18 47 10 a61 61 59 39 21 16 11 15 14 15 17 49 4.5 a61 61 5S 38 21 16 12 15 14 15 17 55 2.0 a61 61 58 37 21 16 IK 16 14 15 17 58 2.0 61 61 5S 36 21 15 14 15 14 14 17 61 2.0 61 61 57 35 21 15 IS 15 15 14 17 61 1.9 61 61 57 34 15 16 15 15 14 17 61 13 61 61 56 33 20 15 17 15 17 14 16 61 36 61 61 56 32 20 15 Ifl 15 23 14 15 61 40 61 61 56 31 20 15 19 14 23 14 15 61 40 61 61 56 29 20 14 20 14 20 14 18 61 47 61 61 55 28 19 14 ?1 14 17 14 28 62 53 61 60 52 29 19 14 Vf. 14 17 14 15 62 61 61 60 50 28 20 14 23 14 18 24 28 62 a61 61 60 47 27 19 14 ?4 14 19 23 28 62 a61 61 ' 60 a57 26 19 14 26 15 18 28 29 62 a61 61 60 a58 26 18 14 14 17 27 28 61 a61 61 61 a57 25 18 15 15 18 28 28 61 a61 61 61 a57 24 13 15 15 18 29 36 60 a61 61 61 a56 24 18 15 29 15 17 28 60 - a61 61 61 'a53a57 23 18 15 vn 15 16 23 62 - a61 61 61 22 17 14 31 15 28 62 ~ a61 ~ 61 ~ 21 17 ~ Second- Runoff in Month ' fee t-days Maxima Minim Mean acre- feet 449 14 891 466 S3 14 , 16.5 9S4 December...... 567 29 IS 18.3 1,120 Calendar year 1942 ...... r. .... 12,381 62 13 33.9 24,590 62 15 25.0 1, 540 1,693 62 47 56.9 3,160 March...... 1,350.9 63 1.9 43.6 2,680 1,830 61 61 61.0 3,630 May...... 1,886 61 60 60.6 3,740 1,707 60 47 56.9 3,390 July 1,068 52 21 34.5 2,180 621 23 17 20.0 1,230 September...... 457 17 14 16. 2 906 Water j*ar 1942-43 ...... 12,799.9 63 1.9 35.1 25,390 a Ho gage-height record; discharge computed on basis of recorded range in stags and record of flow through Tule Elver powerhouse. . Time basis; Pacific war time. To convert war tine to standard tine, subtract 1 boar. N TOLASE LAKE BfiSIK IBS Scrattt FQrfc Tttle liver ndar Success, Calif. Location,- Water-staga recorder, lat. 35e03'* r long. 118°5I', la NWi see. 4, T. 22 S., E. yy E.» 3 miles southeast of Success and 5 miles upstream from nmutB... Altitude of g3ge, about 750 feet {from topographic map). Drainage area. 106 square miles. Keep available. Jteie 1930 to Septasber 1943. Are: .- 13. shears, 50.7 second-feet. BS.- raxiisn SlffAarge during year, 6,210 second-feets«csmd-fe©t war.MS.r. 9 (gwse fistgfrt, from ratlin curve extended above 1,600 second-feet on feasta af TT»IQcity-area studies and lo^ritJamic plotting; mialiBmit, 0.1 second-foot Oct. S-e* 9. 19S&-4S: itbxlaninL dis-charge, that of f&r. 9, 1943; no flow at times daring each year except 1938 axs& 1943. Remarks.- Ssconls gooft except those above 2,000 secand-feet, wiiiete sire fair. Several diversions above station for Irri^.tlom. Rating tables, water year 1942-45 (gage Insight, la feat, end discharge, in second-feet) Oct. 1 to Mar. 9 Mar. 9 to Sflpt. 30 0.8 0.1 1.7 S9 3.0 246 0.8 1.6 33 5.6 580 .9 .4 1.9 46 3.3 S45 .9 1.8 49 4.0 820 1.0 1,0 2.0 56 3.7 510 1.0 2.0 72 4.5 1,180 1.1 2.0 2.2 82 4.1 690 1.1 2.2 101 5.0 1,610 1.8 3.5 8.4 112 4.S 94S 1.2 9 8.5 160 5.6 2,240 1.3 6 8.6 150 1.3 14 2.8 842 6.2 3,010 1.5 15 2.8 196 1.4 18 3.2 588 6.9 4,010 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 0,2 2.8 9 27 119 92 318 195 78 30 8.5 3.2 2 .1 2.6 9 26 103 86 299 192 82 29 8.5 1.3 3 .1 2.8 9 24 92 96 285 190 76 28 8.5 .8 4 .1 5 9 21 65 172 268 230 73 28 8 .8 5 .1 6 9 20 79 668 292 198 71 26 8 .7 R .1 4.2 9 19 74 681 360 184 66 25 8.5 .6 7 .2 2.8 10 IS 69 397 303 177 65 24 8 .5 « .2 2.9 9.5 17 186 727 470 167 62 23 8 .5 9 .1 2.8 9 17 104 3,950 515 a!60 59 22 7.5 .5 10 .2 3.2 9 17 91 2,420 457 al55 58 22 6.5 .6 77 .3 4.2 9 16 91 1,860 434 al50 56 21 6 6 72 .5 4.2 9 16 90 990 392 al40 57 20 6 .6 73 ,7 3.8 9 16 90 725 376 al35 58 20 5 .5 14 .9 3.8 9 16 88 647 360 a!30 56 19 4.8 .5 15 1.1 4.0 9 16 85 564 340 al25 52 18 4.0 .5 7R 1.'2 9 16 82 462 325 a!2Q 48 18 3.5 .6 6 ' 17 1.3 9 15 78 816 310 117 45 ' 1618 4.0 .6 18 1.2 14 10 14 76 2,300 292 114 44 4.0 .6 19 1.0 57 11 18 74 1,070 285 108 43 16 3.5 .6 20 1.0 24 10 15 74 807 271 100 41 16 3.5 .6 21 .9 15 10 175 84 677 255 96 40 15 3.5 .6 22 .5 14 10 786 102 683 248 94 40 14 3.8 .5 23 .4 12 19 984 114 586 242 89 40 14 4.2 .4 24 .5 12 188 361 223 510 239 88 39 14 4.2 .4 25 .6 11 119 182 144 462 236 83 38 14 4.8 .4 26 .6 10 57 165 117 422 221 82 37 13 4.5 .7 27 .8 9.5 43 165 108 396 206 80 34 12 4.2 1.5 28 .9 12 40 128 97 376 227 79 33 11 3.5 2.2 29 1.5 12 35 116 _ 360 218 78 31 11 3.2 2.0 .TO 1.7 9.5 31 172 _ 422 206 76 30 10 3.0 1.8 31 1.8 29 154 - 344 - 76 ~ 9 3,5 Seoond- Rvricff in Month foot-days Maximum Minimum Mean ac-e-feet 20.8 1.8 0.1 0.67 41 279.1 57 2.6 9.30 554 December...... 766.5 188 9 24.7 1,520 Calendar year 1942 ...... 12,833.7 244 0 35.2 25,450 119 2,759 223 69 98.5 5,470 86 799 49,130 9,250 515 206 308 18,350 4,002 76 129 7,940 1,554 82 30 51.8 3,080 576 30 9 18.6 1,140 166.7 8.5 3.0 5.38 331 September...... 25.7 3.2 .4 .86 51 Water year 1948-43 ...... 47,852.8 3,950 .1 131 94,920 Peak discharge.- Jan. 22 (5 a.m.) 1,480 sec. -ft. ! Jan. 23 (5:30 a.m.) 1,760 sec. -ft.; Hap. 5 (7 p.m.) 1,02O sec.-ft.; Map. 9 (8 a.m.) 6,210 sec.-ft.j Mar. 10 (12 p.m.) 3,710 sec.-ft.; Ifir. 18 (3 a.m.) 4,680 sec.-ft. a No gage-height record; discharge computed on basis of recorded range In stage and record^ for Tule River near Porterville. Time basts; Pacific war time. To convert war time to standard time, subtract 1 hour. 186 TULARE LAKE BASIN Kaweah River near Three Rivers, Calif. Location.- Water-stage recorder, lat. 36°24', long. 118°57', in SWi S3C. 33, T. 17 S., R. 2ti t".'," 2k miles downstream from South Fork and 3 miles southwest of "Hires Rivers post office. Altitude of gage, about 620 feet (from topographic map). Drainage area.- 520 square miles. Hecprds avallable.- February 1936 to September 1943. April 1903 to January 1936 at site u mnes upstream. Average discharge.- 40 years, 580 second-feet. tactremes.- Maximum discharge during year, 17,000 second-feet Jan. 22 (gage height, 12.55 feet); minimum, 36 second-feet Oct. 26 (gage height, 1.05 feet). 1903-43: naxlmum discharge, 33,300 second-feet Dec. 11, 1937 (gage height, 17.0 feet, present datum), from rating curve extended above 6,000 secon1- eet on basis of velocity-area study; minimum, 8.5 second-feet Sept. 19, 1934. Remarks.- Records good. Flow regulated by diversions above station for irrigation, and by power developments on Middle and East Forks. Rating tables, water year 1942-43 (gage height, In feet, and discharge. In second-feet) Oct. 1 to Jan. 21 Jan. 22 to Sept. 30 1.1 40 2.2 244 5.0 1,680 1.2 SO 2.8 470 6.0 2.SOO 1.2 48 2.6 366 5.5 2,100 1.4 75 3.2 650 7.0 4,050 1.3 59 2.9 474 6.0 2,600 1.6 111 3.6 860 8.0 5,540 1.4 72 3.2 600 6.S 3,190 l.S 156 4.0 l.OSO 9.0 7,350 1.6 106 3.6 790 7.0 3,870 2.0 4.5 1,410 10 9,520 1.8 146 4.0 1,020 7.5 4,640 2.4 5.0 1,800 2.0 192 4.5 1,320 S.O 5,470 Discharge, in second-feet, ufater year October 1942 tc September 1943 Day Oct. m>v. Dec. Jan. Feb. Mar. Apr. May June July Aug.. Sept. 1 55 54 117 230 778 615 Ir620 2,380 2,640 893 266 71 2 54 52 112 220 700 610 1,700 2.S10 2,230 376 243 67 3 54 52 110 200 630 625 1,740 2,840 1,330 888 219 67 4 < 51 66 108 190 578 898 1,710 2,800 1,500 926 203 65 5 50 62 102 ISO 564 1.350 1.S20 2,490 1,300 910 196 64 6 46 60 93 17O S46 1,440 1,82O 2,68O 1,280 888 185 62 7 49 58 97 159 550 1,070 1,57C 2,850 1,49O 305 135 61 8 49 55 97 155 761 2,010 2,110 2,320 1,67O 772 175 61 9 49 59 99 15O 625 9,340 1,830 2,550 1,6SO 766 166 62 10 49 56 95 150 573 6,56O 1,630 2,590 1,580 740 156 64 11 5O 56 95 144 600 4,360 1,560 2,620 1,626 720 161 64 12 55 55 95 142 605 3,000 1,510 2,460 1,410 TOO 144 62 13 66 54 92 140 615 2,450 1,470 8,350 1,840 645 139 61 14 62 52 92 140 640 2,250 1,540 2,180 1,330 610 137 59 15 58 56 88 144 65S 2,020 1,560 1,880 1,380 630 134 59 'iaa 16 57 68 88 146 66Q 1,740 1,660 1,700 1,500 560 58 17 55 67 88 140 4Z5 2,690 1,610 1,550 1,650 534 122 58 18 54 184 S6 121 625 ' 6,190 1,980 1,480 1,670 478 117 59 19 51 762 85 116 610 3,210 13,050 1,450 1,590 446 111 59 20 50 252 85 148 640 2,600 1,950 1,620 1,420 422 109 58 21 49 185 83 5,180 705 '2,270 2,020 1,880 1,360 406 103 57 22 48 170 eg 6,120 805 2,330 2,200 2,200 1,200 383 100 56 23 49 175 203 6,540 305 2,030 2,340 2,460 1,070 353 93 54 24 49 170 1,400 2,030 1,220 1,840 2,330 2,970 1,O70 343 96 53 25 49 159 745 1,270 849 1,770 2,350 3,240 1,000 338 94 53 26 46 140 397 1,060 735 1,760 2,200 3,260 976 330 39 '5854 27 50 127 363 99S 690 1,780 2,220 3,310 954 324 34 28 52 142 330 810 635 1,840 2,850 3,080 986 314 80 58 29 56 131 308 750 1,680 2,650 2,850 970 320 77 53 30 55 121 366 1,120 1,960 2,700 2,510 910 396 74 57 31 . 54 247 954 & 1,660 - 2,410 - 231 72 - Second- Runoff in Month foot-days M&XifflUlB Minimum Mean acre-feet October...... 1,621 66 46 52.3 3,220 November...... '3,700 762 52 1S3 7,340 December...... 6, 348 1,400 S3 205 12,590 Calendar year 1942 ...... £44,531 3,220 46 670 485,000 January...... 30,017 6,540 116 968 59,540 February- ...... 19,034 1,220 546 680 37,750 llaroh...... 76,148 9,340 61O 2,456 151,000 April...... :...... 58,480 2,850 1,470 1,949 116,000 Bay 76,610 2,260 1^420 2,471 152,000 June ...... 42,526 S,«40 910 1,418 34,350 July...... 17.S02 <*26 231 577 35,510 August ...... 4,255 266 72 137 S,440 September ...... 1,799 71 55 80.0 3,570 Water year 1942-43 ...... 333,439 9,340 46 927 671,360 Peakreag discharge.-aiscnarge.'- Jan.jan. 22aa (1u a.m.) 17.00017,000 sec.-ft.;sec. -ft. : Jan. 23 (5:30 a.m.) 14.14,000 000 aso.-ft.sse.-ft, : Marr 9 (lla.m.) 13.6OO sec,-ft.; Mar. 18 (2 a.m.) 11,000 aec.-ft. Time baata! Pacific war time. To convert war time to standard time, subtract 1 hour TULARE LAKE BASIN 187 North Fork Kaweah River at Kaweah, Calif. Location.- Water-stage recorder, lat. 36°29', long. 118°55', In SEi sec. 34, T. 16 S., FT7~2B~E., li miles upstream from Mannikin Creek, It miles north of Kaweah, and 3 miles upstream from mouth. Altitude of gage, about 1,080 feet (from topographic map). Drainage area.- 128 square miles. Records available.- October 1933 to September 1943. October 1910 to October 1933 at site i mile downstream. Average discharge.- 32 years (1911-43), 102 second-feet. Extremes.- Maximum discharge during year, 5,180 second-feet Jan. 21 (gage height, 8.68 reet); minimum, 4.2 second-feet Sept. 25. 1910-43: Maximum discharge, 8,290 second-feet Dec. 11, 1937 (gage height, 11.0 feet), from rating curve extended above 4,000 second-feet on basis of velocity-area study; no flow for many days during period July to October 1924. Remarks.- Records good. Several small diversions above station for irrigatior. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July A >6 . Sept. t 1 8.5 11 s 21 50 248 186 437 428 169 67 20 12 Z S.5 11 20 46 216 184 450 410 166 156 19 11 3 8.5 11 20 43 198 189 456 402 156 65 19 10 4 8 12 20 41 1S6 277 446 460 146 53 18 10 5 8 13 20 38 184 386 465 382 138 51 18 10 6 8 13 19 37 177 382 465 374 131 47 19 10 7 8 12 20 34 180 306 394 366 124 46 18 9 8 8 12 20 35 230 577 495 350 119 44 18 9 9 7.5 12 21 32 194 2,650 428 320 114 42 17 9 10 8 12 20 32 177 2,060 382 312 112 42 16 8.6 11 8 12 20 31 186 1,400 370 302 Itf9 40 16 7.5 12 9 11 19 31 191 930 366 286 112 38 16 7 13 10 11 19 30 186 744 358 274 114 38 15 7 14 10 11 19 30 194 677 374 256 110 37 14 7 15 10 12 19 30 203 610 370 248 102 36 14 7 16 10 16 19 30 206 530 382 236 95 36 13 7 17 10 16 19 29 SOI 786 406 228 91 34 13 7 18 10 64 19 27 198 1,740 419 216 87 34 12 7 19 9.5 208 19 26 198 916 428 203 84 31 12 7 20 9 58 19 33 211 732 410 196 82 31 13 6 21 9 37 19 1,680 228 643 406 191 80 30 13 6 22 8.6 31 19 1,940 265 677 432 191 77 29 13 6.5 23 8.6 30 48 2,170 228 588 432 196 73 28 13 6 24 9 28 342 665 323 530 424 203 72 27 14 4.8 25 9.6 26 196 386 245 5OO 424 206 71 27 14 4.8 26 10 24 92 320 214 600 398 203 68 25 13 5.5 27 10 22 83 289 203 506 386 203 65 25 12 6.6 28 10 24 74 239 189 510 535 196 62 24 IE 7 29 11 22 68 222 - 5OO 465 189 60 24 12 7 30 11 22 59 394 _ 515 428 182 59 22 12 7 31 11 - 54 309 - 450 ~ 173 " 20 12 ~ Second- Runoff in Month foot-days Maximum Minimum Mean acre-feet October...... 284.0 11 7.5 9.16 563 November ...... 803 208 11 26.8 1,590 December ...... 1,446 342 19 46.6 2,870 Calendar year 1942 ...... 48,427.0 770 7.5 133 96,050 January ...... 9,299 2,170 26 300 18,440 February ...... 5,859 323 177 209 11,620 March...... 22,180 2,650 184 715 43,990 April ...... 12,620 535 358 421 25,030 May...... S,382 460 173 270 16,630 June ...... 3,048 169 59 102 6,050 July...... 1,129 57 20 36.4 2,240 August ...... 460 20 12 14.8 912 September...... 227.1 12 4.8 7.67 450 Water year 1942-43 ...... /...... 66,737.1 2,650 4.8 180 130,400 Peak diaoharKe.- Dec. 24 (6s30 a.m.) .888 sec. -ft.: Jan. 21 (llsSO D.m. ) 6.180 sec. -ft. : Jan. S3 5a.m.) 3,920 sec.-ft.; Mar. 9 (3s30 a.m.) 3,620 BOO.-ft.; Mar. 18 (1 Time baala; Pacific war time. To convert war time to standard time, LAKE BASIN Kings River above Birth Fork, Calif. Location.- Water-stage recorder, lat. 36°ffi^, long. 119°07«, In Ni sec. r?, T. 12 S., R. 3BTE^iBJSfflrwyea}» 1 slla upstream fro» Korth Pork and 1O miles soutJ^ast of Trinraer. Altitude of gage, about 1,020 feet (treat topographic mapK Drainage area.- 956 square miles. Hecojas avaixaole.-available.- October 19311S3I to Septanberseptan&er 1943. fbrcb 1927 to Deceit«r 1928 at site "Gall a miie aownstream. discharge.- 13 years, 1,540 second-feet. discharge during year, 11,800 second-feet Jan. 21 (gafe height, 7.30 n, ninlKBn, 15B second-feet Nov. 14. 19S7-28. 1931-43: ffexlBua discharge, 42,000 second-feet Dec. 11, 1937 (gage height, 12,.02 feet;, frem rating: curve extended above 10,000 second-feet on brsls of velocity- area studies: minimal, 79 second-feet Oct. 13, 1934 (gage height, 0.5* foot). Remarks.- Records good except those for periods of doubtful gage-height record, which are , rair. Snail"amount of water released occasionally from Hume Lake: Cooperation.- Gage-height record collected In cooperation with Pacific QFS & Electric1 Co. Bating tables, water year 1942-43 (gage height. in feet, and discharge. In second-feet) Oct. 1 to Jan. 21 Jan. 22 to Sept. 30 766 0.7 152 1.8 484 4.0 2,330 .9 188 2.8 1,030 .8 174 2.0 576 4.5 3,110 1.0 206 3.2 1,360 1.0 220 2.4 802 5.0 4,080 1.2 256 3.6 1,740 1.2 274 2.8 1,070 5.5 5,320 1.4 314 4.0 2,260 1.4 336 3.2 1,410 6.0 6,880 1.6 380 4.4 2,860 1.6 406 3.6 1,830 7.0 10,600 1.8 460 4.8 5,580 5.2 4,500 Discharge, in second-feet, water year October 1942 to September 1143 Day Oct. NOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 196 167 243 370 1,000 760 1,910 5,240 6,910 d3,300 1,440 330 2 194 167 240 353 910 748 2,100 5,400 5,840 d3, 200 1,320 326 3 192 162 235 324 834 778 2,260 5,260 4,910 as, 210 1,160 320 4 187 178 230 314 772 979 2,290 4,940 d4,000 dS.S^O 1,040 310 5 164 169 213 302 748 1,180 2,430 4,560 d3,600 d3,5'0 951 307 6 180 171 187 290 725 1,260 2,370 5,100 d3,700 d3,610 884 304298" 7 178 167 164 278 725 1,110 2,140 5,810 d4,300 d3, 4>0 872 8 178 167 196 276 865 1,610 2,540 5,750 4,680 d3, 210 827 293 9 178 169 211 264 772 5,100 2,230 4,830 4,880 d3, 2.'0 772 292 10 178 164 206 264 742 5,150 2,010 5,010 4,710 d3,130 735 286 11 178 162 208 256 778 3,340 1,890 5,210 4,910 *3,rx> 725 280 12 182 158 206 251 784 2,580 1,840 4,760 (34,100 a8,no 707 268 13 194 158 201 246 790 2,200 1,790 4,640 ' dS,600 d2,9TO 690 257 14 192 166 , 199 251 815 2,170 1,810 4,210 d3, 660 dS,810 764 249 15 192 173 196 253 8S4 1,910 2,060 3,800 d3,700 d2,7^0 764 241 16 192 180 194 256 852 1,710 2,330 3,470 d4,700 d2, 510 696 233 17 187 182 192 246 841 2,110 2,530 3,180 5,150 dS^TO 645 225 1 A 180 608 189 223 887 3,640 2,910 2,860 5,460 d2,100 612 220 JLO !,» «) 1Qis? 178 766 1B7 206 821 2,600 3,310 8T,880 5,400 686 218 20 173 384 183 291 841 2,110 3,240 3,180 4,880 1,810 567 810 21 169 336 180 4,010 917 1,930 3,290 3,840 4,830 1,710 619 206 22 167 333 182 4,710 1,060 1,970 3,560 4,780 d4,100 i.e^q 488 201 ' 23 164 336 480 5,500 993 1,740 4,O10 5,690 d3,700 i,6TO 464 198 24 162 327 1,290 2,260 1,030 1,630 3,950 7,280 d3,400 1,5X> 444 196 25 164 311 795 1,660 930 1,620 4,040 8,480 d3,200 1,610 425 201 26 164 293 532 1,410 865 1,710 3,800 9,000 33,150 IfS'K) 399 216 27 162 276 513 1,260 821 1,800 3,900 9,340 d3,160 1,6%0 381 218 28 164 287 486 1,090 772 1,990 5,150 9,270 as, 500 1,610 363 213 29 167 270 464 1,040 _ 2,200 4,540 8,650 d3,700r 1,610 353 208 30 167 256 414 1,360 _ 2,110 4,540 7,150 as, 500 1,610 346 203 31 169 361 1,170 - 1,880 - 6,030 " 1,510 339 » Second- jjaX-tUB**111 I'-vui Runoff in Month f cot-days Minima acre-fast October...... 5,512 196 162 178 10,930 November...... 7,672 Tte 156 S66 16,220 Deoeitiber 9,836 1,290 180 317 19,610 Calendar year 1942 ...... 606,186 8,1EO 166 1,669 1,808,000 January...... 30,064 5,600 206 999 61,460 February...... 23,684 1,060 786 846 46,940 March S3, 635 5,150 748 2,060 186,000 April....'...... 86,860 8,160 * 1,790 2,896 178,300 May.u«« ...... 169,480 9,240 2,860 S,4«S 536,100 Jane...... -...... '...... 189,210 6,910 3,160 4,307 856,300 July...... 76,860 3,600 1,610 2,463 161,400 August . 81,249 1,440 339 686 42,150 September...... 7,528 330 196 eei 14,930 Water year 1942-45 ...... 631,830 9,340 166 1,751 1,263,000 Paafc dlaotoarge.- Jan. 21 {10 p.m.) 11,80Q eec,-ft.; Jby 28 (3 a.m.) 11,000 see.-ft. a uouotruj. gage-height record; dleeaarge computed on baele of records for station at Piedra and Horth Fork Kings Hirer below Ranoheria Creak. _._- ^._._. eonvept war tiae to standard tine, subtract 1 hour. TUIARE LAKE B&SBJ 189 Kings River at Pieflra, Calit. Location.- Water-stage recorder, lat. 36°49'OS", long. 119°231'08I1 » In UWi BBC. 8, T. 13 s. f R. 24 E., half a mile downstream from highway t)rii$§B at Medra, 2 miles down stream from Mi-11 Creek, and IS miles northeast of 'Singer- Altitude of gage, about 500 feet (from topographic map). Drainage area.- 1,694 square miles. Records available,- September 1895 to September 1943.. Average discharge.- 48 years, 2,355 second-feet-. Extremes.- Maximum discharge during year, 46,900 second-feet Jan. 21 '.Cgaee height, 16.SS feet); minimum, 194 second-feet Nov. 15 (gage height, 1,02 .feet), 1895-1943: .Maximum discharge, 80,000 second-feet Dec. 11, 1957.(gage hetpftit, 19.94 feet), from rating curve extended above 30,000 second-leet on basis of velocity-area study; minimum, 67 second-feet Oct. 3, 1924. Remarks.- Records excellent. Flow slightly regulated by storage on 'Ten TELle an4 B1U Flat Creeks and power plant on North Fork. Cooperation.- Four discharge measurements and assistance in collecting gage-height record furnished by Kings River Water Association. Rating table, water year 1942-43 (gage height, to feet, ami dlacharge, In second-feet) 1.0 190 2.1 535 4.0 1,680 7.0 5,600 1.2 22S 2.4 665 4.5 2,130 8.0 7,620 1.4 274 2.7 310 5.0 2,660 9.0 10,100 1.6 336 3.0 970 5.5 3,260 10.0 13,SCO 3.5 1,290 6.0 3,960 11.0 16,800 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. Hay June July Auff. Sept. 1 235 210 337 656 2,240 1,460 3,620 9,270 10,200 3,690 1.E30 348 2 22S 206 352 620 1,910 1,480 3,920 9,630 8,930 3,760 1,440 344 Z 226 204 348 571 1,700 1,480 4,230 9,090 7,070 3,750 1,1T Octo ber...... 6,629 235 199 214 13,160 More 14,327 2,780 191 473 28,420 Dece ber...... 17,161 2,860 255 554 34,040 Calendar year 1942 995,093 14,000 197 2,726 1,974,000 Janu ary 76,699 16,200 305 2,474 162,100 Febr 48,070 2,300 1,380 1,717 95,360 March...... 131,380 11,800 1,460 4,233 260,600 1...... 159,400 10,500 3,250 5,313 316,200 US? 279,930 14,000 4,710 9,030 565,200 June 170,340 10,200 3,690 5,678 337,900 July 86,430 4,240 1,620 2,788 171,400 Angu St...... 23,409 1,530 363 755 46,430 SeptMbar...... 7,988 348 212 266 15,830 Rater year 1942-43 ...... 1,021,757 16,200 197 2,799 2,027,000 Peak diechmrfte.- J n. SI (IS p.m.) 46,900 see. -ft.; Jan. 23 (8j30 a.m.) 29,300 eec.-ft. Time tn.Bl.gi VtclfLo war time- To oonvert mar tine to etatKtard tln«, subtract 1 hour. 190 TULARE LAKE BASIN North Fork Kings River near Cliff Camp, Calif. Location.- Water-stage recorder, lat. 37°00', long. 118°59', In NWi sec. 12, T. 11 S., R. 27 E., at Cliff Camp Bridge, 1 mile northwest of Cliff Camp and 2.3 miles downstream from Woodchuck Creek. Altitude of gage, about 6,150 feet (from topographic map). Drainage area.- 174 square miles. Records available.- November 1922 to September 1943. August 1921 to November 1922 at site 1 mile upstream. Average discharge.- 19 years (1921-32, 1933-35, 1937-43), 356 second-feet. -Extremes.- mximum discharge during year, 4,260 second-feet my 24 (gage height, 11.70 feetj; minimum, 4.5 second-feet Sept. 24. 1921-43: Maximum discharge, 14,000 second-feet Dec. 11, 1937 (ga~e height, 18.0 feet, from flooomarks), from rating curve extended above 4,500 second-feet on basis of velocity-area studies and by logarithmic plotting; minimum, 0.6 seco-'d-foot Dec. 30, 1930. Remarks.- Records good. No diversion above station. Cooperation.- Water-stage recorder graph furnished by San Joaquln Power Division, Pacific Gas & Electric Co., In connection-with a Federal Power Commission project. Rating table, water year 1942-43 except period of Ice effect (gage height, In feet, and discharge, In second-feet) 25 5 3.4 45 4.8 274 7.0 982 9.5 2,360 26 6 3.6 66 5.2 374 7.5 1,180 10.0 2,760 2 S 10 3.8 91 5.6 490 8.0 1,400 10.5 3,160 30 16 4.0 120 6.0 61S 8.5 1,660 32 28 4.4 190 6.5 794 9.0 1,980 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 7 8 27 59 blOO 123 508 2,190 1,990 396 49 7 2 6.5 S 27 53 blOO 125 598 2,080 1,560 369 45 7 3 6.5 8 27 45 .98 141 652 2,160 1,230 369 41 7 4 6.5 9.5 24 41 95 175 715 2,000 963 374 37 6.5 5 6.5 8 15 40 97 190 722 1,900 830 358 34 6.5 6 6 S 15 36 105 166 574 2,400 906 340 29 6.5 7 6 , 7.5 15 34 111 162 571 2,500 1,160 293 27 6.5 8 6 8.5 16 34 99 230 676 2,260 1,310 267 24 6.5 9 6.5 9 17 32 91 - 652 499 1,930 1,280 282 22 6.5 10 7 9 16 34 95 484 419 2,800 l,19q 230 20 6 11 7.5 S.5 16 32 105 286 380 2,160 1,200 212 19 6 12 8 9 15 30 120 259 377 1,950 955 204 18 6 13 8.5 8.5 15 30 139 263 481 1,810 841 190 18 5.5 14 S.5 9.5 15 32 15S 279 722 1,620 887 175 17 5.5 15 9 15 15 34 175 226 823. 1,390 944 171 16 5.5 16 10 12 15 36 179 202 925 1,230 1,090 150 16 5.5 17 9 41 15 38 180 814 1,B60 1,060 1,160 130 15 5.5 18 S.5 436 16 84 175 we li 210 1,000 1,160 114 14 5.-5 19 8.5 155 15 26 184 210 So 1,240 1,050 102 13 5.5 20 S 53 15 28 194 196 1 ,180 1,460 989 94 12 5.5 21 8 50 14 1,070 204 194 1,350 1,770 853 91 12 5.5 22 8 54 IS 556 190 175 1 ,S40 2,260 676 84 - 12 5 23 7.5 60 155 543 160 166 1 #40 ?,740 558 78 11 4.8 24 7.S 59 294 175 150 204 1 3,160 583 ' 74 10 4.6 25 7.5 49 101 123 131 279 3,090 469 _«8 10 5 26 7.5 3S 74 120 126 364 1,380 3,000 442 64 9 6 27 7.5 44 81 126 123 424 1 580 3,000 439 60 8.5 6.5 28 8 41 S7 112 116 511 2 810 8,740 484 60 8 6 29 8.5 34 98 110 _ 536 1 630 2,380 , 475 65 8 6.5 30 8 31 68 108 _ 430 1 750 1,880 419 58 7.5 5.5 31 8 - 63 102 - 402 - 1,830 - 53 7.5 - Seoond- Runoff in Month f cot-days Maxima Minim* Mean acre-feet October...... 236.0 10 6 7.61 468 November...... 1,891.0 7.S 43.0 2,560 December...... 1,404 294 14 45.3 2,780 Calendar year 1942 ...... 169,510.5 3,280 e 464 336,200 January. ....,...... /.... 3,887 1,070 24 184 7,650 February...... 3,800 804 91 136 7,640 Hareh...... 6,566 ess 183 276 16,990 April ...... 30,1562 2,510 377 1,022 60,880 Bay 64,360 3,160 1,000 8,076 127,700 June ...... S7,9«7 1,990 419 932 65,470 July...... i ...... 5,943 396 53 179 10,990 589. 5 49 7.E 19.0 1,170 September. .:...... ,...... 176.4' 7 4.6 S.88 350 Hater year 1942-43 ...... 148,451.9 3, MO 4.6 407 294,500 b Stags-discharge relation affected by ioe. lime baalat Pacific war time. TO convert war tine to standard time, subtract TULARE LAKE BASIN 191 , North Fork Kings River below Rancheria Creek, Calif. Location.- Water-stage recorder, lat. 36°56', long. 119°00', In SEi sec. 34, T. 11 S., R. 27 E., 1 mile upstream from Balch diversion dam and 1 mile downstream from Rancheria Creek. Altitude of gage, about 4,150 feet (from topographic map). Drainage area.- 225 square miles. Records available.- March 1927 to December 1937, January 1939 to September 1943. Average discharge?- 13 years (1927-36, 1939-43), 397 second-feet. Extremes.- mxlmum discharge during year, 5,380 second-feet Jan. 21 (gage height, 12.15 reetj; minimum, 13 second-feet Oct. 9. 1927-43: Maximum discharge, 21,000 second-feet Dec. 11, 1937 (gage height, about 23 feet, from floodmarks), by computations of peak flow over Balch diversion and after- bay dams, 1 mile and 7 miles respectively, below station: minimum, 5 second-foot Aug. 29, 1931. Remarks.,- Records fair prior to February, good thereafter. No diversion above station. Cooperation.- Water-stage recorder graph furnished by San Joaquln Power Division of Pacific Gas & Electric Co., In connection with a Federal Power Commission project. Rating tables, water year 1942-43 (gage height, In feet, and discharge, in second-feet) Oct. 1 to Jan. 21 Jan. 22 to Sept. 30 1.4 12 2.4 40 4.5 838 8.0 1,480 1.3 15 2.9 7T 1.5 14 2.6 50 5.0 318 9.0 2,150 1.5 18 3.2 95 1.6 16 E.S 62 5.5 482 10.0 2,990 1.7 22 3.5 121 1.7 18 3.0 75 6.0 556 11.0 4,030 2.0 30 4.0 172 1.8 20 3.5 118 6.5 728 2.3 41 4.5 838 2.1 4.0 171 7.0 940 2.6 55 Note.- Same as preced ing table above 4.5 frot. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 15 16 51 98 220 203 647 £,490 2,180 451 70 22 15 16 SO 88 210 214 748 £,410 1,780 427 65 21 3 15 17 51 75 192 238 SOS 2,440 1,460 417 61 21 4 14 19 48 72 183 314 872 2,370 1,160 422 87 20 t> 14 18 38 67 187 372 908 2,170 1,000 403 54 20 6 14 17 32 62 188 311 748 2,630 1,050 391 SO 19 7 14 16 35 58 199 289 698 2,790 1,280 344 48 19 14 17 40 59 191 460 895 2,550 1,*50 309 44 19 14 18 39 55 168 1,240 665 2,150 1,430 297 ~ 42 19 10 14 18 39 S6 173 1,000 566 2,420 1,310 274 40 18 11 16 17 38 53 192 569 526 2,410 1,360 255 39 18 12 18 17 37 51 206 462 515 2,170 1,110 244 37 17 18 17 36 51 221 446 588 2,060 965 231 36 17 14 18 17 36 84 238 485 833 1,890 1,010 214 35 17 15 IS 27 56 55 255 398 955 1,610 1,050 206 34 17 16 18 29 36 56 265 3S6 1,060 1,470 1,180 186 33 17 17 18 61 36 51 258 488 1.220 1,290 1,250 168 33 17 18 17 873 35 41 252 701 1,410 1,160 1,260 150 32 17 19 16 338 34 47 252 436 1,480 1,430 1,140 136 31 16 20 16 109 33 62 276 380 1,390 1,640 1,010 126 30 M6 21 15 92 32 2,720 314 372 1,540 1,950 955 123 30 16 22 15 87 35 1,390 331 346 1,740 2,440 784 116 29 16 23 15 92 264 1,320 268 322 1,770 2,900 634 108 28 15 24 15 88 541 446 255 348 1,710 3,380 604 101 28 15 25 15 74 202 322 231 429 1,730 3,360 547 97 27 16 26 r 15 66 142 887 217 535 1,600 3,230 512 89 26 17 27 15 67 148 276 210 610 1,760 3,260 498 85 B4 18 28 16 67 147 242 203 705 2,920 2,990 544 83 24 18 29 17 60 160 238 760 2,010 2,580 535 84 23 17 30 16 56 120 268 _ 640 2,000 2,110 485 81 22 16 31 16 - 106 227 - 572 8,000 - 75 82 Seoond- Rrnoff in Month foot-days Maximum Minimum Mean ar re-feet December ...... 2,677- 541 3£ 86.4 5,310 Calendar year 194S ...... 197,109 3,500 14 540 391,000 January MBIT 1,16C 2,315, Aoe I * Pfln September...... 531 22 IS 17.7 1,050 Water year 1942-43 ...... 183,865 3,380 14 504 364,700 Peak discharge.- Jan. 21 (9:30 D.m.) S.38C sec. -ft.; Bay 24 (9:30 p.m.) 4,600 see. -ft. 192 TULABE LAKE BASIN Dog Creefe near Academy, CaUf.. LocatlMU- water-stage recorder, lat. 36^58'5G", long. 119033'15", in MEi sec. 22, T. 12 S., S- 22 E., 1 mile southwest of Academy- Datum of gage Is 493-94 feet above raeaai sea level (levels by State of California). Drainage area.- 14.65 square miles. Records available.- October 1941 to September 1943. totremes.- 1941-42? Maximum discharge durlag year, 502 second-feet DM. 29 dgage height, 4.'VB feet), from rating curve extended above "75 secoad-feet by 1-ogPrttbMc plotting; BO flow during several -months. 1942-43: Maximum jUscharg* during year, 100 second-feet Har. 11 (gage height, 2.14 feet); no flow during several -mouths. Remarks.- Records good. Cooperation.- Records collected and prepared In cooperation with Division of water Resources, Department of Public Works, State of California. Discharge, In second-feet, 1941-45 1941-42 Off Oct. HOT. DM. Jaa, FA. Mar. Apr. Hay June July Aug. Sept. i: 0 18 4.1 2.S 1.3 1.6 2 0 9 4.3 2.S 1.3 2.2 3 0 6-5 4.1 2.S 1.2 1.3 4 0 4.3 3.S 2.2 2.0 .S 5 0 , 3.6 4.3 2.0 2.0 .7 6 0 3.2 8.6 2.0 l.S .6 7 0 2.7 9.5 l.S 1.3 .3 a 0 2.2 7 1.6 1.3 .2 9, c l.S 5 1.6 I.I .2 10 0 1.8 4.S 1.8 1.1 .2 11 0 1.8 4.6 4.8 1.2 .1 12 0 1.8 4.3 3.4 1.0 0 13 0 1.8 4.3 z.i 1.0 0 14 0 l.S 3.6 2.7 3.4 0 15 0 l.S 3.4 S.S 2.2 0 06 0 1.8 3.4 3.4 1.3 0 17 o 1.6 3.4 2.7 2.2 0 18 0 1.6 3.2 2.S 1.6 0 19 0 1.-6 2.9 2.6 1.3 0 20 0 1.6 2.7 2.2 1.2' 0 21 0 1.6 2.7 2.2 .9 0 22 .1 2.02.'9 S 2.0 .S 0 23 .2 3.8 2.2 .S 0 24 .4 3.7 3.6 2.0 .7 0 28 .3 16 3.S 1.8 .7 0 26 .7 6.6 3.6 1.6 .6 0 27 1.0 6 3.2 1.6 .6 0 28 S 6.6 2.9 1.6 1.5 0 29 63 S.6 - 1.6 1.3 0 30 31 6 - 1.6 .9 0 31 24 4.6 - 1.3 - 0 US*?* 3-3 3 g L 2888^8 8£88£ 8SS5S SSSSC S»«-4<» «X«NM 1 |§: : : rr|| ...... December...... October1941 ...... November. October...... 1942 DecwidMr...... Novosbar...... sis:PacifictuxboaTime ,.,...year1942-48Water r» ::::::: 5 y»ar1942...... Calendar il f :,::::::: fi rili!!!!. i *. f! f $ §2 I S(* I S S sa O&O OO O MrffcM O OOO O OOOOO OOOOO OOOOO o i I i cr I 9 o 0.0 oo o i S t*W«b C**^t^tv3 M tMMf-* !- I-- 65 K> M CO W Cft M hH K) i g » M fr-* Cri M M f f&tM h$M Q&Q3 tOCOBOCriifr' Cfl 0> W 65 W rf* W 0> O rf* CB -^ M o 1 f ?l ID O M H* M M 6563*oi>»cn ODcnoecnb en Jnco *.oi or&ti^ wo*toroco * >4 ? M- till w Ol M OOOOOH* i(> S ooo u OOQOtOCMOlloes i Soo i> 1 1 -q a>M tOifoicn 1 Faolfle«« OOOOO OO o ooo o OOOOO MKIM ooo £ ! M to cnOi-Jcn f § * E ^ 1 S H* OOOOO O1 M ooo ** OOOO MtO»*. woo f * O WtKWI-' I O S18SS2 l-t g S Ir-Sw-J 3 S . I JJ * s aor«-fe0tinRUB«ff Lne»r'a MM K5 7 « WO1M1-' « u-o ifb eiifn 3H- ooo s oooooimoiS* »oo f 194 TULARE LAKE BASIN Dry Creek near Academy, Calif. Location.- Water-stage recorder, lat. 36°53'15", long. 119°33'25", in SWi sec. 15, T. 12 S., R. 22 E., 1 mile west of Academy. Datum of gage Is 502.17 feet above mean sea level (levels by. State of California). Drainage area.- 45.3 square miles. Records available.- October 1941 to September 1943. Extremes.- 1941-42: Maximum discharge during year, 287 second-feet De-:. 29 (gage height, 2,33 feet); minimum, 0.1 second-foot Aug. 10 to Sept. 30. 1942-43: Maximum discharge during year, 463 second-feet Jan. 22 (gage height, 2.74 feet); no flow July 18 to Sept. 30. Remarks.- Records poor. Cooperation.- Records collected and prepared In cooperation with Division of Water Resources, Department of Public Works, State of California. Discharge, In second-feet, 1941-48 1941-42 Day Oct. Nor. Deo. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 1.0 4.3 6 73 31 16 13 ie 5 0.6 2 1.0 5 3.7 40 27 15 12 ie 4.9 .6 3 1.0 6 S.6 30 24 16 13 15 5 .6 4 1.0 6 6.6 24 19 14 IB 14 5 1.1 4.7 21 31 14 IS 14 4.8 S 6 > «0.2 6 1.4 4.7 6 19 65 IS 16 12 5 a. 6 7 - 1.4 4.3 4.8 16 69 14 15 12 4.7 8 1.9 4.0 4.7 ie 47 14 14 11 4.5 9 2.1 8.7 4.6 le 89 15 IS 10 2.6 10 - 2.1 3.7 6 17 35 16 13 10 2.7 11 2.1 4.0 7 15 SO 38 14 10 3.0 12 2.3 8.7 7.5 13 27 82 IS 11 2.8 IS 2.6 3.4 e 12 sa 24 12 9 2.6 14 S.I 8.1 14 12 19 37 22 S 2.4 15 3.1 8.1 12 11 16 60 21. e 2.8 ..4 . aO.l 16 2.6 8.4 10 11 15 89 18 7.5 1.8 IT 2.6 8.7 17 10 14 84 24 7 1.4 10 2.4 4.0 12 11 14 S3 IS 6.5 1.4 II 19 2.8 3.7 12 11 14 28 16 6.6 1.8 V 20 4.0 3.4 10 11 16 24 16 6 -, 1.8 > a.l 21 6 8.4 10 11 16 22 14 6 .9 22 6.6 8.4 10 17 82 21 14 5.6 .8 25 6.6 8.1 10 sa 24 20 14 6 .9 1, 24 4.7 8.1 11 27 18 19 14 6.6 .6 25 4.7 8.1 11 109 20 18 13 6.5 .6 - - 25 e 8.1 14 50 19 17 IS 8 .6 27 7 2.8 21 77 18 16 IS 7.6 .6 28 9 2.8 75 87 17 16 17 7.6 .4 ~* 29 6.5 4.0 186 54 14 16 7 .8 1" 30 6.6 7.6 187 42 _ 14 14 6.6 .4 31 4.7 - 111 35 - IS 6 - a Ho gage-height record'; mean discharge for period computed on basis of engireer'a notea and weather records. TULARE RIVER BASIN 195 Discharge, in second-feet, of Dry Creek near Academy, Calif., 1941-43 Continued 1942-43 Day Oct. Nov.. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.1 2.3 5 29 15 20 9.5 2.3 0.2 \ 2 .1 2.7 4.8 22 13 19 9 2.5 .2 - 3 .1 2.7 4.6 21 '12 17 8 2.6 .2 4 ,2 2.0 4.7 19 13 16 9.5 1.8 .1 5 .8 2.0 4.5 18 32 15 8.5 1.6 .1 6 1.1 2.0 4.4 17 46 15 7.5 1.6 .1 7 , aO.l 1.1 3.0 3.7 16 '4626 15 -' 7 1.5 .1 8 1.3 3.0 4.0 35 15 6.5 1.1 -- .1 9 1.6 3.0 4.0 26 138 15 6.5 .9 .1 10 1.6 3.0 3.7 21 124 15 5.5 .9 .1 97' 11 2.0 3.0 3.7 18 14 5 .9 .1 12 2.0 3.0 3:3 18 49 13 4.9 1.0" .1 13 1.6 3.0 3.3 16 34 13 5 1.3 .1 14 1.6 3.0 3.3 15 34 12 5"5 1.5 .1 15 .2 2.7 3.0 3.7 15 32 11 2.1 .1 * 16 .2 3.0 3.0 4.0 14 27 11 5 l.S .1- 17 .1 3.0 3.3 3.7 13 48 11 5 1.3 .1 IS .1 4.5 3.3 3.3 13 10 B 11 5 .9 0 19 .1 19 3.7 3.3 13 66 11 4.8 .7 0 20 .1 9 3.3 3.3 12 54 11 4.5 .7 0 21 .1 6 3.3 79 15 46 11 4.3 .7 0 4.0 22 .1 3.3 167 22 40 10 4.0 * .7.9 0 23 .1 3.3 5 138 26 34 10 3.6 0 24 .1 3.0 20 44 26 29 9.5 3.3 .7 0 25 .1 2.7 26 25 34 24 9.5 2.9 .5 0 "80 26 .1 2.3 13 21 22 9 2.7 .4 0 27 .1 2.3 9.5 25 19 21 9 2.4 .3 0 28 .1 2.7 8 19 16 20 18 2.6 .2 0 29 .1 * 2.7 6.5 18 _ 22 15 2.5 .2 0 30 .1 2.7 6 76 _ 22 12 2.3 .2 0 31 .1 - 4.9 53 - 20 2.4 - Or ,a Mo gage-height record; mean discharge for period computed on basis of engineer's notes and weather records. Monthly discharge, in second-feet, 1941-43 Seoond- Runoff in Month foot-days ' Maximum Minimum Mean acre-feet October 1941 ...... 9 1,0 3.45 212 7.5 2.8 3.87 230 December...... 760.3 186 3.7 24.5 1,510 Calendar year ...... - - - - - . 926 109 10 29.9 1,840 737 69 14 26.3 1,460 679 60 13 21.9 1,350 April ...... t ...... 460 24 12 15.3 912 May...... 286.5 18 5.6 9.24 568 71.8 5 .3 2.39 142 July...... 12. ff .6 .2 .39 24 4.0 .2 - .13 7.9 September...... 3.0 - - .1 6.0 Water year 1941-42 ...... 4,162.7 186 - 11.4 8,260 3.3 . .11 6.5 88.1 19 .1 2.94 175 December ...... ,j ...... 162.8 / 26 2.0 5. .25 323 Calendar year 1942 ...... 3,437.5 109 - 9.42 6,820 742.3 167 3.3 23.9 1,470 February 550 35 12 19.6 March...... 1,311 ,138 12 . 42.3 2,600 April ...... 393.0 20 9 13.1 May...... 159.7 9.5 2.3 33.6 2.6 .2 1.12 67 July ...... 2.0 .2 0 0 September ...... 0 Water year 1942-43 ...... 3,445.8 167 0 9.44 6,830 Time basis: Pacific war tljse. To convert war time to standard time, subtract 1 hour. 196 SAN JOAQUIN RIVER BASIN SAN JOAQUIN RIVER MAIN STEM San Joaquin River above Big Creek, Calif. Location.- Water-stage recorder, lat. 37°15'00*, long. 119°19'10", in r"* sec. 11, T. 8 S., R. 24 E., 3 miles upstream from'BIg Creek. Altitude of gage, atout 2,500 feet (from topographic map). Drainage area.- 1,042 square miles. Records avai-iaole^.- March 1922 to September 1943. Average aiscnargeT- 18 years (1925-43, period since diversion began through Ward tunnel), 1,3m. secpna-reet. Extremes.- Maximum discharge during year, 23,200 second-feet Jan. 21 (page height, 18.90 leet); minimum, 117 second-feetoct. 30 (gage height, 6.63 feet). 1922-43: Maximum discharge,"52,500 second-feet Dec. 11, 1937 (gege height, 24.05 feet), from rating Curve extended above 14,000 second-feet on basis of velocity-area Studies; minimum, 52 second-feet Sept. 24, 25, 1931. Remarks.- Records excellent. Flow regulated by Florence Lake (see p. 202) and diversions through Ward tunnel (see p. 205). Cooperation.- Water-stage recorder graph and 10 discharge measurements,furnished by southern California Edison Co. obtained in connection with Federal Power Commission project. Rating table, water year 1948-43 (gage height. In feet, and discharge. In second'-festT 6.7 IE'7 9.0 18.0 3,360 6.9 157 9.S 1,170 12.S 4,040 7.2 EOS 10.0 1,510 13.0 4,880 7.6 SOS 10.5 1,880 13.5 5,840 8.0 44E 11.0 8,300 14.0 6,890 8.6 640 11.5 8,780 15.0 9,160 Discharge, id second-feet, water year October 1948 to-.September 1943 Daj Oct. Nov. . Dec. Jan. Feb. Mar. Apr. May June Jvly Aug. Sept. 1 145 1S7 381 503 1,080 896 S,850 5,140 8,480 2,060 716 192 2 142 187 308 478 1,000 90S 2,680 5,640 6,100 1,970 667 190 3 139 184 334 420 984 957 8,860 5,100 3,940 U910 586 188 4 138 136 314 389 870 1,120 2,840 5,040 3,010 8,070 586 185 5 136 133 273 379 850 1,500 3,010 4,580 8,530 8,180 488 183 6 133 133 236 356 833 1,740 8,530 5,460 2,380 8,340 450 182 7 13$ 132 231 327 880 1,440 2,500 6,080 2,700 8,150 438 180 R 133 133 234 330 1,080 1,820 3,150 5,720 3,880 1,910 435 180 9 136 142 255 314 370 4,880 8,470 4,220 3,600 1,930 399 180 10 138 138 845 311 835 5,440 8,090 4,720 3,600 1,820 379 176 11 144 132 245 311 691 8,190 1,910 5,010 3,810 i*7io 339 178 IK 151 130 240 899 913 8,490 1,910 4,280 3,160 1,710 383 168 13 152 130 236 293 946 2,850 2,150 4,010 8,730 1,630 34S 162 14 148 188 836 296 996 2,230 3,880 3,580 8,720 l',560 353 154 15 145 146 83S 314 1,070 8,100 3,690 3,170 8,370 1,500 366 150 178' 16 145 836 384 1,100 1,800 3,540 8,790 3,340 1,340 359 148 IT 140 880 838 314 1,090 1,940 5,740 2,620 3,940 1,210 330 145 1R 136 3,630 256 262 1,060 8,590 3,980 8,330 4,310 1,130 314 142 19 133 2,270 229 234 1,050 8,100 4,060 2,600 4,280 1,050 899 138 20 188 731 823 330 1,130 1,860 3,650 2,970 3,810 979 290 134 21 1£7 510 218 9,050 1,300 1,780 3,830 3,450 3,810 908 873 138 ?.?, 124 453 821 7,340 1,560 1,790 4,500 4,360 8,660 913 857 1S8 as 123 453 625 7,600 1,350 1,660 4,880 5,880 e.soo 880 245 1S7 24 121 446 8,140 8,740 1,800 1,630 4,670 7,290 -1,980 885 240 127 25 121 484 1,150 1,940 1.10Q 1,760 4,600 7,860 i,aso 340 E29 130 fcfi 121 369 740 1,640 1,010 2,100 " 3,710 7,770 1.B40 850 218 166 27 121 353 667 1,480 990 2,34& 3,640 7t98ff 1,780 816 SOS !?3 28 121 / 431 619 1,830 9S4 £,6SO 8,910 7,j80 8,000 8SO 203 leg 29 181 366 694 1,840 2,890 §,310 7>150 2,S10 786 SW 151 30 1E1 387 698 1,710 _i 2,480 3,829 5,980 8,140 776 led 145 31 126 " S34 1»840 2,100 * S,700 ~ 745 195 ~ Seeond- Ruaoff in M&nth ' « ' foot-days HasiBU* Minimum tf&ui aci-fr-feet 134 pa £t*n December. ..:...... 15*312 2,140 218 489 26*400 Calendar year 1948 ...... 685,964 9,660 121 1,871 1,355,000 43 &&& 9 050 Q«Z* go oj|4 Marofc...... QOA 8 Qi n S 537 lh*,...... July . .... 8 48Q 1 V80 10 938 £c% September...... 4,781 198 1S7 159 9,480 Water year 1948-43 ...... 587,348 9", 050. 121. i.epe 1,165,000 2l (8t30 *.n.) 83,800 sec.-ft.; Jan. SS (5 a.m.) 11-,800 sec.-ft.; Apr. 88 Hay 88 (S a.m.) 9,580 seo.-ft.i June 1 (5 p.m.) 10,800 sec»-ft. r tlsgi. lo 6«nvert war time fee standard tts»» eubfePaet 1 aaar. SAN JQAftUIN RIVER MAIN STEM 197 Millerton Lake at Frlant, Calif. Location.- Staff gages, lat. 37°00', long. 119°42', In SWi sec. 5, T. 11 S., R. 21 E., at Friant Dam on San Joaquln River and immediately upstream from Cottonwood Creek. Datum , of gage is at mean sea level (levels by Bureau of Reclamation). Drainage area.- 1,633 square miles. _ Records available.- October 1941 to September 1943. jfelyettes.- 1941-43. (control valves not Installed and lake discharging through open outlet pipes): Maximum contents observed, 51,400 acre-feet Jan. 23, 1943 (elevation, 415.0 feet). Remarks.- Reservoir Is formed by gravity-type concrete dam with spillway near center, com pleted (except for control valves and spillway drum gates) in December 1042. Total \usable capacity, 419,100 acre-feet between elevations 375.4 feet (Invert of river out let) and 560.0 feet (spillway crest elevation) above mean sea level. Millerton Lake Is one of the storage units in Central Valley project. Closure of temporary diversion con duits was in progress from Sept. 6 to Nov. 11, 1941, when reservoir level reached invert of permanent river outlet pipes. Since Nov. 11, 1941, river has flowed through outlet pipes and reservoir level has fluctuated with flow of river. Records show contents at 8 a.m., Nov. 5, 1941 to Apr. 22, 1942; at 4 p.m. thereafter. Cooperation.- Gage-height record furnished by Bureau of Reclamation. Capacity table (elevation, In feet, and contents, In acre-feet) (Prepared fey California Division of Water Resources from surveys and maps made by Madera Irrigation District) 320 93 410 46,090 470 138,400 530 314,900 340 2,280 480 67,000 480 161,700 540 353,000 360 S,960 430 69,340 490 187,500 550 393,400 380 20,460 440 83,340 500 215,600 560 436,500 390 87,880 450 99,270 510 246,300 570 482,200 400 36,430 460 117,500 520 279,400 580 530,400 Contents, In acre-feet, 1941-43 1941-42 Day 4e*. Hor. Dec. - Jan. Feb. liar. Apr. Hay. June July Aug. Sept. 1 260 10,650 21,090 25,160 <24,040 22,660 24,040 26,620 29,010 26,200 23,010 21,930 2 271 11,520 21,090 23,820 23.300 22,680 24,110 26,780 31,430 28,450 _ 21,950 3 26O 12,520 2X,300 23,080 23,150 22,720, 24,630 26,230 30,500 _ 22,660 » 4 271 13,630 26,000 23,010 24,040 22,940 85,700 26,000 £0,420 _ 28,650 - 5 288 14,490 23,740 22,580 2%, 340 23,080 27,960 26,620 32,200 31,340 22,680 - 6 260 15,370 22^800 22,510 25,090 23,080 27,020 27,100 34,810 31,3'40 _ _ 7 249 16,400 28,510 22,580 26,550 23,010 26,550 28,200 36,710 30,500 22,650 . 8 349 16,840 21,790 22,580 26,700 23,010 26,390 28,850 35,350 30,080 82,720 21,720 9 280 17,090 21,650 22,560 26,090 23,010 26,39O 29,830 36,170 29,340 ' - i 21,760 IP 224, 17,410, ,21,720 22, HQ -24,710 23,230 26,470 30,170 36,710 SB, 690 32,440 21,720 11 _ 18,180 21,720 22,800 34,260 23,740 26,550 29,100 57,44O 88,120 82, « W 21,780 12 _ 19,440 21,580 22,290 23,890 24,930 26,700 28,260 37»9SO 37,490 22,510 - 13 224 20,260 21,580 22,510 23,600 26,010 27,170" 27,640 57,900 26,860 22,7'?0 _ 14 277 20,740 21,440 22,580 83,370 24,560 28,120 27,330 87,440 26,510 22,870 21,660 15 305 20,950 21,510 22,560 23,300 24,560 30,420 27,170 57,4*tO 26,940 - 81,660 16- 344 21,090 22,000 22,580 22,940 24,260 29,100 27,170 36,890 27,600 i - 21,790 17 316 21,020 22,360 22,560 28,080 23,890 28,040 87,030 55,360 _ 32,440 21,720 18 266 21,020 22,580 82,510 28,080 23,820 27,800 27.410 34,990 86,620 I 22 r2580 28,690 22,940 23,250 87,800 35'?10 25,240 23,820 22,1 $0 21,370 29 7,290 81,500 g4,260. 27,100 _ 82,940 27,410 32,280 27,640 23,670 81,780 30 6,740 21,300 27,100 25,950 _ 23,010 26,780 29,010 26,180 23.600 - 21,660 31 9,660 - 36,860 25,640 - 23,450 - 26,040 - 23,160 21,860 - 198 SAN JOAQUIN RIVER MAIN STEM Contents, In acre-feet, of Millet-ton Lake at Prlant, Calif., l?41-43 1942-43 Day Got. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 21,720 _ 21,160 _ 24,340 23,160 26,310 31,600 34,460 24,710 _ 21,720 '32 21,650 20,670 21,090 20,880 24,190 23,450 26,550 31,770 37,720 24-630 22,510 21,720 - 20,740 20,810 _ 23,970 23,370 27,100 30,170 34,280 24.410 _ 21,650 4 - 20,880 _ . 20.880 23,520 23,820 27,020 30,670 30,250 24.260 22,080 21,650 5 - - - 23,370 24,190 27,410 30,750 27,640 24,- 260 2?, 150 21,510 6 _ 20,880 _ 21,160 23,370 26,780 27,410 30,750 27,800 24.260 22,360 21,580 7 21,320 _ 20,390 _ 25.230 25,850 26,860 31,850 26,000 24r 710 22,360 21,650 8 21,230 _ 20,880 21.09O 25,740 25,010 27,410 31,940 26,620 24.560 22,220 21,650 9 21,230 20,320 _ 21,020 23,970 29,750 27,570 30,500 27,410 24.260 22,360 21,650 10 - 20,600 - . - 23,670 38,270 26,860 29,420 27,570 24,260 22,360 21,720 11 _ _ 21,090 20,600 23,450 37,990 26,000 30,170 27,800 23,740 22,360 _ 12 21,160 20,670 _ 21,020 23,600 34,190 25,470 29,580 27,640 23.890 22,360 21,720 13 21,160 20,740 - 20,810 23,520 30,670 25,700 28,850 26,700 23.820 22,150 21,720 14 21,230 - - 20,950 23,300 28,530 26,310 27,880 26,160 23.740 22,290 - 15 - - 21,020 20,880 23,300 26,860 27,880 27,570 26,310 23.670 - - 16 21,230 20,260 21,090 _ 23,450 26,550 27,880 26,700 26,620 23 ,450 22,080 21,230 17 - 20,810 21,230 _ 23,300 26,230 27,880 26,230 27,490 23,300 22,150 21,160 - _ 18 21,720 20,260_ - 23,520 29,420 27,570 26,080 28,120 23 . 080 22,080 _ 19 21,160 26,620 _ 23,600 27,880 27,490 25,700 28,200 23,010 22,080 21,090 20 21,370 24,040 - - 23,890 27,250 28,370 26,160 27,960 22.940 22,000 21,020 21 21,090 _ 20,950 _ 24,340 26,390 28,120 26,700 27,410 22,870 22,000 20,950 22 21,020 _ _ 48,060 24,040 _ 28,450 27,640 27,720 22 ,870 21,930 20,950 23 21,020 20,880 21,230 51,160 25,090 26,080 28,930 28,280 25,770 22,940 21 ,930 21,020 24 _ 21,370 22,360 45,790 t25,010 25,540 29,100 30,920 25,090 22,870 21,860 21,020 25 - - - 35,080 25,010 25,540 28,690 35,080 24,630 22.800 21,790 21,160 26 20,670 _ 22,440 29,100 24,340 25,930 27,880 35,440 24,410 22,650 21,720 21,160 27 - , _ 26,000 24,110 25,850 27,880 37,630 24,040 22.800 21,790 _ 28 20,880 _ 21,510 24,780 23,890 26,470 31,850 38,650 _ 22,870 21,790 21,090 29 20,880 _ 21,790 24,190 _ 27,020 35,530 38,460 24,560 22.870 21,790 21,090 30 20,880 20,670 24,040 _ 27,570 32,880 36,710 24,710 22,720 21,790 21,090 31 - - 21,930 26,230 - 26,940 - 34,280 - 22,580 21,720 - t Gage height Interpolated between readings at 3 and 6 p.m. Monthly elevation ami contents, 1941-43 Elevation Contents Change In contents Date (feet) (acre-feet) during B'mfch (acre-fe^t) 21 300 Dec. 31...... 388.7 26,860 +5,667 Calendar year 1941 . ... - - _ Sept. 30...... 381.7 21,650 -210 Water year 1941-42.... - - t- 21 ,400 Dec. 31...... 382.1 21,930 - +-1,26? Calendar year 1942. . . . f _ -4,930 -2,130 38D.9 21,090 -630 Water year 1942-43.... - - -560 e Estimated. Time pasIs: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. To convert war time to standard time, subtract 1 hour. SAN JOAQUIN RIVER MMN STEM 199. San Joaquin River below Friant, Calif. Location.- Water-stage recorder, lat. 36°59'04", long. 119043'24% In SWi sec. 7, T. 11 S., R. 21 E., half a mile west of Friant, li' miles downstream from Cottonwool Creek, and 2 miles downstream from Friant Dam. Datum of gage is 294.00 feet above mean sea level (levels by Bureau of Reclamation). Drainage area.- 1,675 square miles. Records available.- October 1938 to September 1943. ,October 1907 to December 1913 at site 4t miles upstream. December 1913 to September 1938 at site 2t miles upstream. Average discharge.- 36 years (1907-43), 2,388 second-feet. Extremes.- Maximum discharge during year, 11,200- second-feet (regulated) Jan. 23 (gage height, 11.29 feet); minimum, 515 second-feet (regulated) Jan. 18. 1907-43: Maximum discharge, 77,200 second-feet Dec. 11, 1937 (gage height, 23.8 feet, site and datum then In use); minimum, 5.5 second-feet (regulated) Oct. 20, 1941. Remarks.- Records excellent. There are seven reservoirs and eleven power plants above station. See records for Florence Lake, Huntlngton Lake, Shaver Lake, and M'.llerton Lake. Contents of Crane Valley Reservoir was 36,600 acre-feet on Sept. 30, 1942 and 27,900 acre-feet on Sept. 30, 1943. Rating tables, water year 1942-43 (gage height, in feet, and discharge, in second-feet) Oct. 1 to Jan. 23 Jan. 24 to Sept. 30 3'.e 640 6.0 2,540 9.0 6,720 4 2 925 ' . 7.0 3 840 ' 4.0 760 6.5 3,120 10.0 8,500 4 6 1,240 8.0 5, 180 4,5 1,120 7.0 5,740 11.2 11,000 5 0 1,610 9.0 6 720 5.0 1,530 ' 7.5 4,420 5 5 2,110 10.0 8, 500 5.5 2,000 8'0 5,130 6 0 2,650 11.0 10, 600 Discharge, in seoond-feet. water year October 1942 to September 1943 "Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May ' June July AU|T. Sept. ' 1, 1 1,340 869 96S 1,270 3,070 2,280 4.220 6,500 7,320 3,240 900 1,360 2 1,260 814 1,040 932 2,890 2,400 4 ,230 7,320 8,390 3,190 1, 820 1,340 3 1,180 827 960 960 2,650 2,500 4 ,420 6,350 7,580 3,100 1, 740 1,320 4 1,060 890 1,060 814 2,400 2,350 4 .490 6,400 6,580 3,010 1, 630 1,280 5 976 932 1,120 918 2,320 2,690 '4,540 6,400 5,110 2,890 1, 610 1,250 6 1,060 904 992 1,020 2,260 4,000 4,620 6,400 4,200 2,950 1, 690 1,280 7 1,070 669 688 1,120 2,200 3,970 4 ,360 6,910 3,920 3,220 1, 710 1,300 8 1,080 897 827 1,020 2,330 3,360 4 ,480 7,200 4,150 5,190 1, 710 1,330 9 1,060 6S8 911 984 2,580 5,380 4 ,930 6,460 4,570 3,040 1, 710- 1,320 10 1,050 772 1,000 890 2,460 7,990 4,450 6,030 4,820 2,930 1, 710 1,330 u 1,010 808 1,010 724 2,320 S.SOO 4.000 6,160 4,940 2,650 1, 710 1,350 12 1,010 796 1,080 939 2,350 7,630 3 ,680 6,180 4,940 2,670 \', 7lO 1,360 13 1,040 820 1,010 904 2,310 6,620 3 ,720 6,000 4,490 2,670 650 1,340 14 1,060 754 802 918 2,310 6,020 3 ,980 5,460 4,10o 2,620" 1, 630 1,240 15 1,060 718 890 932 2,240 4,790 4,800 4,830 4,070 2,520 1, 610 1,180 16 1,060 670 1,000 939 2,260 4,280 5,410 4,480 4,230 2,460 1, 600 1,140 17 1,060 848 1,060 808 2,410 4,150 5 ,250 4,150 4,620 2,400 1, 590 1,070 18 1,000 1,280 1,060 612 2,350 5,890 5 ,820 4,020 5,340 2,220 1, 580 1,090 19 1,020 3,800 1,060 688 2,410 5,770 5 ,120 3', 780 5,4oO 2,070 . 1, 640 1,040 20 1,140 5,080 984 742 2,480 4,700 5,340 4,010 5,120 2,060 1, 510 974 21 1,000 1,880 890 1,660 2,700 4,260 5,170 4,260 4,820 2,070 1, 510 946 22 946 1,370 911. 10,200 2,690 3,920 5 ,650 4,800 4,560 2,020 1, 510 946 23 918 932 1,100 11,000 3,360 4,000 5 ,970 5,740 3,940 2,050 1, 510 988 24 932 1,120 1,530 10,600 3,280 3,790 6 ,160 6,210 3,490 1,990 1, 460 1,030 25 911 1,200 2,400 8,620 3,190 3,700 E ,080 7,200 3,240 2,000 1, 420 1,040 26 802 1,160 1,900 6,650 2,950 3,790 5,320 7,810 3,080 1,910 1,400 1,060 27 860 968 1,590 4,150 2,760 3,890 5 ,050 8,350 3,000 1,980 1, 390 1,040 28 897 1,040 1,200 3,280 2,610 4,180 6 ,220 8,660 3,040 2,000 1, 400 1,020 29 , 918 984 1,360 2,860 . 4,360 7 ,870 8,660 3,170 2,010 1, 400 1,010 30 918 802 1,380 3,200 - 4,700 7 ,140 8,290 3,280 1,970 1, 400 1,020 31 904 - 1,430 4,140 - 4,520 ' 7,530 - 1,890 1, 370 ~ Second- Runoff in Month foot-days Maximum Minimum Mean acre-feet October...... 31,604 1,340 802 1,019 62,690 November...... 33,492 3,800 67C 1 1 116 66,450 December...... 35,213 2,400 688 1,136 69,840 Calendar year 1942 1,125,959 10^400 67O 3,085 2,233,000 January ...... I ...... 83,894 11,000 612 2,706 166,400 February...... 72,040 3,280 2,200 2,573 142^900 llarch...... 140,680 8,800 2,280 4,538 279,000 April ...... 153 490 7 870 3,680 5,083 302,500 May...... 192^ 5 50 8^ 660 3,780 6,211 381,900 June ...... 139,570 8j39Q 3,000 4,652 276,800 July...... 76,990 3,240 1,890 2 484 152} 700 August ...... "i ...... 49,130 1*900 1,370 1,585 97 450 September...... 34,994 1,360 946 1,166 69^410 Water year 1942-43 ...... 1,042,647 11,000 612 2,857 2,068,000 Time baslsi Pacific war 'time. To convert war time to standard time, subtract 1 hour. 200 SAN JOAQU1N RIVER MAIN STEM San joaquln River near Newman, Calif. Location.- water-stage recorder, lat. 37°21'02", long. 120°58'34", In SW* sec. 3, T. 7 a., R. 9 E., at bridge on Hills Ferry road, 300 feet downstream fmn Merced River and 3t miles northeast of Nevwnan. Datum of gage Is 51.0 feet above datum of corps' of Engineer s, U. S. Army. Drainage area.- 9,990 square miles. Records avallable.- April 1912 to September 1943. Prior to Oct. 1, 1?37, flow that by- passeo. station at discharges above 9,000 second-feet not included In records. Average discharge.- 31 years, 2,626 second-feet. Extremes.- Maximum discharge during year, 16,700 second-feet Mar. 20 (gage height, 16.49 reet): minimum, 340 second-feet Nov. 3 (gage height, 1.78 feet). 1912-43: Maximum discharge, 33,000 second-feet Mar. 7, 1938 (gsste height, 18.50 feet); minimum,- 15 second-feet Aug. 9, 10, 1924. Remarks.- Records good. Practically entire flow of river and tributaries diverted during' irrigation season; low flows comprised mainly of return water. Discharge, In second-feet, water year October 1942 to Septenbe-1943 Daj Oct. Dec. Jan. Fab. Mar. May June July Aug. Sept. 597 379 1,040 8,630 11,600 6,760 11,100 9,830 8,020 1.300 466 415 611 358 1,000 8,420 13,000 6,860 10,800 9,230 7,840 1,140 47S 412 618 345 989 2,260 13,300 6,360 10,600 9,150 S.590 1,060 445 41S 580 34S 980 8,190 18,800 5,850 10,400 9,11O 9,630 1,070 432 412 590 350 962 2,070 18,000 5,310 10,500 9,130 9,630 1,150 412 418 -578 350 962 1,890 9,880 5,400 10,600 9,190 8,750 1,150 435 440 548 350 1,010 1,780 9,040 7,460 10,500 9,050 S.040 1,130 455 430 530 358 1,040 1,620 8,180 8,640 10,400 9,070 7,770 1,100 450 435 524 394 1,060 1,550 7,740 9,670 10,200 9,290 7,750 1,050 460 44S 527 478 1,060 J., 540 8,080 10,900 9,970 9,230 7,860 1,010 438 552 548 1,030 1,580 7,240 18,400 9,830 8,990 7,930 1,100 448 463 583 576 980 1,460 6,580 14,000 9,7SP 8,580 6,900 1,230 44B 458 586 533 998 1,430 6,340 16,800 9,490 8,1«0 5,890 1,800 412 45S 986 57« 1,060 1,580 5,000 16,700 8,970 7,470 4,516 1,100 420 438 580 1,120 1,300 5,860 ^5,600 8,440 6,910 4,360 1.080 442 425 578 566 1,160 1.S7D 5,660 15,600 8,140 6,490 4,830 958 455 405 566 580 1,170 1,860 6,460 15,900 -8,120 6,290 3,940 830 452 430 580, 608 1,140 1,*SO 16,300 8,880 6,080 3,686 758 436 440 622 1,090 s'oso 16,600 6,290 5,860 3,, 540 TJfi 442 466 6*71 1,110 1,829 4,850 16,700 8,820 5,470 «**$ «*B S66 1,160 1,880 4,810 16,*00 8,180 4.740 463 487 650 1,210 1,S10 4,430 16,500 8,360 3,920 404 468 1,160 4,380 16,200 8.-500 8,370 4,0513 S87 481 428 662 1,600 1,380 4,590 16,000 s, see 3,160 4,050 641 484 480 £20 1,780 E,50O 4,840 8.38P 3,600 541 452 SOS 1,640 1,«00 5,450 4,840 541 490 493 1,360 6,3.10 6,060 IS,600 5,660 580 448 6,540 421 1^100 7^750 18,400 7,110 1,810 409 446 394] 499 <*«*» «** * . 1,4*7,180 18,009 4,080 E, 810,000 08,680 9,880 1,210 994,840 13,3OO 7,894 405,100 16,TOO 5.3HJ 879,830 8,180 555*060 220,480 8*290 3,150 163,950 9,630. ,1,580 5'466 S2*'gQO 86,830 T.,300 480 13,649 484 13,SJ5 J&ll 16,700 MW SAN JOAQUIN RIVER MS.IN 8TO1 201 San Joaquln River near Ve.rnalis, Calif, Location.- Water-stage recorder, lat, 37°40'34", long. 121015<51JI , la El Peseade~o Grant, at Durham Ferry highway bridge, z miles downstream from Stanislaus River and 3k miles northeast of Vernal Is, San Joaquin County, Datum of gage ie 8.4 feet abeve ditam of Corps of Engineers, u. S, Army. Drainage area.- 14,010 sauare miles. Records available.- July 1822 to September 1943 (1922-23 and 1926-29, low-water records - Average discharge.- 14 years (1929-43), 5,832 eecond-feet. Extremes.- WaxlsusB discharge during year, 38,900 second-feet M&r. 12 (gage height, 25.30 feet), including flow through break in levee: minimum, 1,400 eeeond-feet Aug. 6, 1922-43: mximua discharge recorded, 51,200 second-feet Mar. 16, 1958 (ga?e height, 26.64 fast), including flow through break in leyee; aaxiatum gage height, 27.05 feet Feb. 12, 1938, before break in levee; minimum-discharge, 184 second-feet Aug. 14, 1931. Remarks.- Records good. Practically entire flow of river diverted during irrigation season; low flows comprised mainly of return water. Discharge, in second-feet, water year October 1942 to Septeober 1943 Day Oct. Set. Dec. Jan. Feb. Mar. Apr. May June July A«g. Sept. 1 a2,000 2,310 2,800 6,030 14,100 13,400 20,800 21,100 16,600 3,690 I,5f30 1,540 2 a2,OOO 2,270 2,800 5,820 15,900 13,200 20,000 19,700 18,900 3,210 1,480 1,540 3 a2,050 2, ISO 3,030 5,160 16,300 13,000 19,300 19,100 21,100 3,OOO 1,£90 1,530 4 a2,150 2,090 3,240 4,910 16,900 12,600 19,200 19,400 24,600 2,880 1,^>0 1,520 5 2,170 2,020 3,900 4,810 17,100 12,2OO 19-, 300 19,1OO 23,1OO 2,950 J.4SO 1,660 2,140 1,960 3,830 4,780 16,700 12,700 19,400 18,100 19,600 2,830 1.44O 1,610 T 2,110 1,050 3,840. 4,590 15,900 16,000 19,600 17,000 15,900 2,64O 1,440 1,680 8 2,100 1,940 3,740 4,420 16,OOO 19,800 19,500 16,500 13,300 2,620 1,490 1,510 . 9 2,010 1,950 4,090 4,310 14,700 20,700 19,200 16,400 11,900 2,730 1,630 1.490 10 8,090 1,960 4,820 4,820 14,700 21,800 19,200 16,300 11,900 2,430 1,5W 1,520 11 2,850 8,O10 4,310 4,126 14,000 27,800 18,900 16,500 12,400 2,330 !,& » 1,510 12 2,450 2,080 4,330 4,130 13,SQO 37,600 13,200 14,600 12,9OO 2,320 1,&X) 1,540 IS &2,4QO 2,110 4,270 4,5SO 12,500 36,7OO 17,600 14,3OQ 13,400 2,260 1,4*0 1,680 14 »2,360 8,130 3,910 4,420 12,000 38,100 17,2OO 14,200 12,200 2,200 1,4*0 1,580 15 2,350 2,140 4,200 ,4,380 11,800 29,600 17,200 14,100 10,300 2,120 !,* » 1,680 16 2,360 2,180 4,420 4,380 11,309 28,600 17,500 13,600 8,850 2,060 1,5% 1,620 17 2,360 2,160 4,470 4,270 11,200 88,1,00 17,500 12,7.00 8,360 2,000 1,6*0 1,610 18 2,410 2,210 4,440 -41J&Q 11,000 27,|45O J7,400 11, SOO 8,37O 1,960 1 5^0 1,680 19 2,440 2,240 4,520 S*$?O. 10,600 87^)0 17,400 10,200 8,150 1,940 1,5*0 1,680 20 2,400 3,580 4,540 10,300 17,400 9,330 6,430 1,850 1,5%<> 1,810 21 2,580 - 2,360 4,680 £,$gp 9,990 27,$00 17,40O 9,100 3,450 1,&30 1,570 1,870 2,27O 8.SOO 4,?OO 4,4^p 9,800 17,10O 8,799 8,780 1,780 1,6"") 1,780 25 2,220 2,610 4,760 6,340 9,8«0 25', soo 16,2OO 6,640 8.69O 1,750 1,730 24 2,81.0 2,590 4,840 10.800 24,800 15,800 9,140 7,89^J 1,7*0 1,7TO 1*800 26 2,270 3,080 «,090 7*260 11,800 84,800 16,800 11,860 7,880 *1,720 I,**--) 1,8*0 % 2,280 3,250 6,410 8,030 12,800 es,40o 16,600 14,100 6,640 1J700 1,6^0 1,960 2*iSH50 9«J$^0 S«H^30 8,490" 13.4QS 22,700 17,000 IJJalOOJ 6,860 1*690 X*6^C ^ .Q80 2,2io! 3,080 §,3.00 9^000 18,600 SI, SOO 16,800 J7,30@ 6,180 1,580 1^&>0 8,060 2,240 8,900 6,^10 1.0,200 ^ 81,2OQ 16,900 18,500 4,510 1,560 3-jL^^O 2,0*0 2,8SO 2,809 g,^©0 iQ,&9S* ? 20,900 19,800 19, 300 4,040 X*&^® %fQQ@ » 2.84O " 6,»80 11,600 - 21,100 - 19,400 1^520 lt^ f Secood- Month feKit-daya ifesrtMM ***** Mean acre^faet October .. 69,340 2 4§Q 2,000 2,^37 137,500 November 69,990 3*230 1,940 2,535 138,800 December ...... 1S6.540 5,880 2,800 4,3.66 268,400 Calendar year 1948 ...... 3,094,280 27,100 1,450 8,477 6,137j,000 KCf ...... 175,070 11,600 3*7,200 uanr...... 365,920 17,100 9^890 13^070. 726,800 £S 716,800 37,600 12,200 83,100 1,4S2,OQO 1...... 541,800 20,800 1B.8OO 18,060 1,^76,000 ***' i------464,150 21,100 ' 8,640 14,970 92P,600 ^ 349,530 84,600 4,040 11,660 692,400 68,450 3,690 1,520 2,208 155,800 ,Mpw*.,...., ...... 47,800 1,730 1,420 1,5*2 94,810 .5Q,67Q 8,O6O 1,6^9 100,500 mster*»**-i9*i^s ...... 8,954 r91p' 87,600 1,420 4»,S7,0 6,S60,OOC a Jto gBge-rhoight record; dlacharg* computed on basis of unpubliahed records or intep;pola*.9A. " " P-eolflc war -ttpe. fa eonv»rt war time to ottuadfird tine, subtract 1 hour. 202 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVEtt Florence Lake near Big Creek, Calif. Location.- Water-stage recorder, lat. 37°17', long. 118°58', In SEi sec. 36, T. 7 S., R~. 27 E., In gatehouse of Ward tunnel Intake, near dam on South Fork San Joaquln River, 16 miles northeast of town of Big Creek. Datum of gage is at mean sea level. Drainage area.- 171 square miles. Records available.- November 1925 to September 1943. Extremes.- Maximum contents during year, 64,000 acre-feet July 21. 26-28, Aug. 3-5 fSievatlon, 7,327.1 feet); minimum, 109 acre-feet Dec. 5, 6 (elevation, 7,222.7 feet). 1925-43: Maximum contents, 65,700 acre-feet July 16, 1935 (elevation, 7,328.8 feet); no available contents Oct. 2-4, 1926, Nov. 30 to Dec. 2, 1927. Remarks.-" Lake Is formed by multiple-arch concrete dam; storage began In April 1925. usaoie capacity, 64,400 acre-feet between elevations, 7,220.9 feet (throat of venturl tube In Ward tunnel Intake) and 7,327.5 feet (top of spillway drum gates) above mean sea level, water Is diverted through,ward tunnel to Huntlngton Lake and used for power development In Big Creek plants. Records show contents at m'dnlght, all of which is available for diversion. Cooperation.- Record of contents furnished by Southern California Edison Co. Ltd., In connection with a Federal Power Commission project. Contents, in acre-feet, water year October 1942 to September 1943 Day Oot. Nor. Dec. Jan. Fab. Mar. Apr. Hay Jima July Aug. Sept. 1 34,500 3,470 130 153 266 233 480 1,35O 24,600 4%100 63.SOO 51,700 2 33,500 2,450 128 147 261 234 506 1,490 S5.4OO 4<5,400 63,900 50,800 3 32,500 1,560 125 146 248 246 512 1,560 25,600 43,OOO 64.OOO 49,900 4 31,500 S67 122 144 240 254 526 1,420 25,400 4-9, soo 64.OOO 49,000 5 30,500 479 109 143 235 260 509 1,32O 25.OOO 51,500 64,000 48,000 6 89,500 420 109 138 235 257 500 1,850 24,700 52,100 63,900 47,100 7 28,500 4O1 112 140 232 254 571 2,35O 24,600 52,300 63,800 46,200 8 27,500 386 120 139 226 302 567 2,230 25,000 52,500 63.6OO 45,300 9 26,500 250 121 140 222 389 484 1,870 25,500 53,2OO 63,500 44,400 10 85,500 152 121 140 225 397 417 1,940 26.OOO 55.20O 63,300 43,600 12O 140 363 3S1 2,010 86,600 57,1OO 63,100 42,600 11 24,500 "125132 231 12 23.6OO 119 138 238 344 371 1,91O 26,7OO 59,OOO 62,800 41,7OO 13 22,500 182 118 141 248 340 402 1.7SO 26,600 6">,9OO 62,600 40,800 14 21,400 126 117 141 259 332 4S4 1,550 26,700 62, TOO 62,500 39,800 15 2O,3OO 126 117 140 266 308 521 1,250 27,00"0 63,100 62,300 3B,80O 16 19,300 117 117 141 268 289 532 - 1,060 87,800 6% 100 62,100 37,800 17 18,800 ISO 116 134 265 237 566 921 29,800 63,100 61,900- 36,800 18 17.1OO 175 115 131 263 32O 691 838 30,700 63,100 61,700 36.1OO 19 15,900 160 115 140 288 313 732 867 32,000 63,800 ftl-,4QQ 35,500 20 14,8OO 156 114 143 -271 300 750 999 33,100 63,-7QO 61,100 34,900 21 1,3,700 165 123 322 276 895 829 1,290 34,200 64,OOO 60,SOO 34,400 22 12.60O 164 171 260 267 290 937 1,960 34,700 63,90O 6O,5OO 33,900 2? 11,500 160 195 239 256 2S6 1,O2O 3,490 35,10O 63,800 59-.SOO 33,200 24 10,500 156 166 270 252 296 1,040 .6,230 36,2OO 63,8OO 59,100 32.5OO 26 9,490 . 150 150 273 245 341 1,02O 8, 590 37,10O 63,900 58,300 31,900 26 3,490 146 154 337 240 400 955 11,400 38,200 64,OOO 57,4OO 31,300 27 7,880 147 165 340 234 452 1,090 14.3OO 39,300 64,OOO 56,500 30,600 28 7,310 144 163 315 -233 538 1,490 IT, 200 4O,7OO 64,000 55,600 3O.100 29 6,330 142 160 305 _ 532 1,140 19,600 42,200 63,900 54,600 29,800 30 5,380 135 158 273 _ 451 1,110 21,400 43.7OO 63.9OO 53,600 29,600 31 4,420 155 869 - 486 - 22,900 - fi%700 58,700 - Monthly elevation and contents, water year October 1942 to SeptfWber 1943 Change in contents Date Elevation Contents during month (feet) (acre-feet) (acre-feet} 7,894.7 35,600 7,244.2 4,42O -31,2'OQ 7,223.1 136 -4.280 Sec. 31...... 7,823.4 158 ' +20 - _ -143 7,824.9 869 +114 7,224.4 233 -36 7,226.4 426 +193 ,231.4 1,110 +684 ,277.7 22,900 +21,800 - ,304.6 43,7OO +20,800 ,326.8 63,700 +80,000 ,315.0 52,700 ( -11,000 Sept. 30...... ,286.7 29,500 -23,200. - ' . -6,100 Time basis; Pacific war time.. *o convert war time to standard time, subtract 1 hour. SAN JOAQUIN, RIVER TRIBUTARIES ABOVE FRESNO RIVER 203 South Fork San Joaquln River near Florence lake, Calif. Location.- Water-stage recorder, 1st. 37°16'20", long. 118 057 I 50", In SEi *sec.. 35, T. 7 s., R. 27 E., just downstream from spillway of Florence Lake Dam, 6 miles upstream from Bear Creek, Altitude of gage, about 7,200 feet (from topographic map). Drainage area.- 171 square-miles. Records available.- December 1921 to September 1943. Average discharge.- 20 years (1922-31, 1932-43), 292 second-feet, combined flow of South "Fork san joaquin River tod Ward tunnel at Intake. Extremes (regulated).- Maximum discharge during year, 266 second-feet Nov. 6 (ga?e height, 10.15 feet); minimum, 0.1 second-foot at tfmes during winter. 1921-43: Maximum discharge, 4,320 second-feet June 6, 1940 (gage height, 15.38 fe.et); practically no flow at times In 1924, 1925, 1935, 1936, 1937-. Remarks.- Records fair. Flow regulated by Florence Lake (see preceding page) an1 dlver- sion into Ward tunnel (see following page). Cooperation.- Water-stage recorder graph and several discharge measurements furnished by soucnern California Edison Co., Ltd., In connection with a Federal Power Cimmlsslon project. Rating table, water year 1942-43, except period of ice effect (gage height, in feet, and discharge, In second-feet) 7.7 e.i 1.3 S.5 7.0 7.8 8.2 2.1 8.6 12 7.9 8.3 3.3 8.7 18 8.0 .8 4.8 Discharge, in second-feet, water year October 1942 tc September 1943 Day Oct. NOV. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.3 0.2 0.3 0.4 0.5 o.v 0.8 2.2 1.4 2 .3 .2 .3 10 .5 .7 .8 2.2 1.3 3 .3 .2 .3 2.6 .6 .8 .8 2.2 1.2 4 .3 .2 .3 2.2 .5 .8.'S «-9 2.Z .8 5 .3 .2 .3 1.9 .5 1.3 2.2 .8 > bO.2 6 .3 .17 .3 1.7 .5 .8 1.3 2.2 .7 7 .3 4.5 .3 L.4 .5 .8 1.3 2.2 .7 8 .3 4.2 .3 1.9 .5 .7 " 1.3 2.1 ,."7.7 9 3 4.0 .3 1.6 .5 .7 1.4 2.1 10 .3 3.1 a. 3 1.1 .5 .7 1.7 2.1, .7 SI 11 .3 1.9 a. 3 1.0 .5 .7 1.'9l.S 2.1 12 .3 .8 a. 3 .S .5 .S 2.1 .6 13 .3 .5 a. 3 .9 .5 .8 2.0 2.0 .6 14 .3 .4 a. 3 1.0 " .4.5 .7 2.1 2.0 .6 15 .3 .5 .3 > bO.3 1.0 .7 2.2 1.9 .6 > bO.2 > bO.l 16 .2 .4 .3 1.0 .4 .7 2.2 1.9 .6 17 .2 .6 .3 1.0 .4 . .7 2.2 1.9 .6 18 .2 1.5 .3 1.2 .4 .S 2.2 1.9 .6 1L57 A .2 .8 .3 .4 3.3 .4 .S 2.2 1.9 .6 20 .2 .4 .3 .4 .4 .4 e 2.2 1.9 .6 21 .2 .4 a. 3 .4 .5 .4 .8 2.2 1.8 .6 .6 22 .2 .4 a. 5 " .4 .5 .4 .8 2.2 1.8 23 .2 .4 .8 .4 .5 .4 .8 2.2 1.8 .6 24 .2 a. 6 .4 .5 .5 .8 2.2 1.7 .6 25 .2 * a. 5 .5 .5 .6 .8 2.2 1.7 .7 Calendar year 194S ...... 18,111.6 1,280 .2 49.6 35,930 January, ...... L ...... 6.2 . .2 12 February 2.8 _ _ .1 5.6 March...... 10.7 .6 .2 .35 - 21 April ...... 42.1 10 .4 1.40 84 May...... 15.6 .7 .4 .50 31 June ...... 23.0 .8 .7 .77 46 July...... 57.2 2.5 .8 1.85 113 Angust-.- ...... 59.4 2.2 1.5 1.92 118 September...... 21.2 1.4 .6 .71 42 Water year 1942-43 ...... 301.7 17 .83 598 a Ho gage-height record; discharge Interpolated. b Stage-discharge relation affected by ice. Time basis I Pacific war time. To convert war time to standard tin subtract 1 hour. 304 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER Ward tunnel at intake, Calif. Location.- Water-stage recorders, concrete control,, and venturi meter, lat. 37*17', long. IJ&'by", In SEi sec. 36, T. 7 S,, R< 27 E., in gatehouse at entrance to tunnel. Alti tude of gages, about 7,350 feet (from topographic maps). Records available.- April 1925 to September 1943. Average discharge.- 17 years (1925-31, 1932-43), 249 second-feet. Extremes.- Maximum daily discharge during year, 1,010 second-feet May 8; minimum dally, D7B~§¥cond-foot Dec. 22. 1925-43: Maximum daily discharge, 1,990 second-feet Apr. 30, 192"; no flow at times. Remarks.- Records excellent. Ward tunnel diverts water from Florence Lake, a reservoir oh South Fork San Joaquln River, to Huntington Lake for use In Big Creek power plants. Cooperation.- Water-stage recorder graph, rating table for venturi meter, and 9 discharge measurements,furnished by Southern California Edison Co. Ltd., obtained in connection with a Federal Power commission project. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nor. Deo. Jan. Feb. . Mar. Apr. May June July Aug. Sept. 1 542 437 36 48 101 68 203 711 861 167 472 548 8 539 486 34 , 44 97 68 238 eoo 854 16S 381 542 3 535 - 464 33 39 92 71 262 832 836 161 368 657 4 533 376 31 38 82 78 268 834 836 161 317 636 5 528 221 24 38 77 S2 272 750 831 25? 317 68& 524 32 20 36 75 84 264 706 825 831 315 633 7 580 30 23 33 76 82 270 S48 ' 820 897 317 630 518 88 26 34 73 89 315 1,010 821 897 314 630 ft 514 82 30 32 68 141 268 961 830 63T 312 528 10 518 66 30 33 67 176 221 924 S34 1.8 312 626 11 510 34 29 32 70 160 190 963 840 1.9 312 522 1? 608 89 28 30 74 144 177 ' 919 832 1.9 310. 580 1.1 554 24 28 88 SO 138 176 884 790 8-51.9 309 518 14 573 24 28 31 87 136 214 838 790 3O9 546 15 664 26 27 31 94 123 250 754 788 675 . 310 560 16 666 88 27 29 99 110 266 635 790 S14 310 646 550 24 26 26 98 105 278 550 797 761 304 539 18 584 44 26 22 95 114 339 471 SOS 681 SOS 408 1ft 593 55 25 24 94 398 464 818 547 302 323 20 664 43 26 31 98 113 388 508 790 417 302 891 81 573 47 16 68 101 110 412 617 745 419 soe 891 769 752 62-5 308 290 662 68 .2 129 107 60" 23 552 51 60 93 90 103 581 777 616 437 336 24 542 47 76 89 86 104 616 795 203 64T 602 368 25 530 43 55 107 79 119 521 816 177 68? 600 368 26 580 40 46 136 74 168 491 845 163 683 637 366 27 339 39 56 156 72 193 498 860 163 6260"! "> 560 366 880 39 59 142 68 836 674 165 87® 29 £04 38 57 276 738 869 164 631 fW 186 30 486 99 52 116 _ 838 S49 166 $5^ Xs^jj 31 464 51 104 - 191 ~ 848 "~ ; *P * Seoowl- MM m*S*f Mopth fooWlaye M.: »-*» **fiipi gag*" October 16,193 593 880 32,1,30 2,9j&0 $8' 0w>|5 December ...... l,$9t,«ft *SS ; «£ JfiM* 2,1.60 119,061.2 1,890 536 ' 1,918 156 28 61,9 3, 800 February . . . 2,366 101 67 84.6 March...... 4,030 876 68 130 7 990 April...... 10,680 738 176 566 21 .ISO May...... 24,866 1,01O 464 788 4B.116 861 163 39,080 July...... 14,397.5 8S7 1*8 ' 464 39 ,£60 August ...... 11,8*3 660 SQ2 362 83,490 September ...... 13,1-81 600 - 4*7 -jJ0^0&P -J!M*r y*ar 1S48-43 ...... 12Br*70.7 ' 3-«@XO .& if? j$£dj Ward tunnel at outlet, Calif. X Location.- Water-stags recorder, lat. 37°16', long, 119°09', in SEi sec. 5,T. 8 S., K. 26 &., Just upstream fro* tansel outlet at east end of Huntington Lake, 6 ailes northeast of Big desk. Attitude of gage, about 7,200 feet-(from topographic map). Records available.- >R>v@mber 1827 to September 1943. Average djsoha-yse,- 16 years f!8g8~43), 420 second-feet. Extremes>- MaXiffltBa daily disd**ge during year, 1,640 second-feet my 8; minimar dally, ?aSe"e"0nd~feet Dee. 82. 1927-43: Maxi«aa dally discharge, 2,080 second-feet June-21, 1935; minima daily, 2.6 second-feet Oet. 33, 1940. Remarks.- Records good prior to Apr. 14, fair thereafter, funnel diverts water from FIoTSnce Lake to Huntington Lake. See record for Ward tunnel at intake on preceding page. Between latake and outlet, tunnel receives water diverted from Bear arrt Mono Creeks and at tistes from several other small tributaries of South fork San Joaquin River. Cooperation.- Water-stage recorder graph, furnished by Southern California Edlsor Co. El3T7~0btaiB94 « esnnsctioa with a Federal Power Commission project* Discharge, ifi Swoo&d-foet, irater year October 1948 to Septeubor 1943 Daj Oct. Nov. Dse. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 687 474 91 113 203 159 438 1,330 1,490 766 861 635 2 633 526 88 lie 198 163 611 1,430 1,490 763 716 630 3 689 617 96 187 166 5S6 1,460 1,440 761 641 623 4 576 410 If78 97 178 174 57g 1,460 1,370 761 87* 618 6 670 2S4 66 96 164 183 678 1,360 1,320 S06 56< 616 668 09 66 86 ISO it* 817 1,380 1,300 1,390 63< 609 7| 568 67 80 84 168 186 5E6 1,460 1,340 1,480 631 606 8 548 68 70 86 164 188 681 1,640 1,430 1,470 581 601 9 649 120 7? 81 160 §57 6E4 1,910 1,440 1,270 vtr 698 .10 649 1S1 76 as 149 319 444 : 1,880 1,440 67§, 601 695 11 848 78 7$ 80 15S 302 ' 394 1,670 1,460 573 49^ 687 18 644 64 78 78 160 280 879 1,660 1,380 671 4S''491! 682 13 .588 60 78 77 169 276 401 1,500 1,300 670 674 14 618 61 78 82 133 266 622 1,460 1,320 69S 56* 688 16 604 64 70 88 198 846 574 1,370 1,870 1,190 52'i 603 49"> 16 596 54 70 81 809 230 59S 1,800 1,390 1,360 698 it 688 63 68 76 208 SIS 669 1,080 1,400 1,330 477 £92 18 614 124 % 60 204 288 810 945 1,410 1,230 46T 487 19 631 187 64 69 203 249 914 948 1,420 1,070 46* 379 20 622 107 66 78 215 236 859 1,040 1,4-10 S99 44* 343 81 609 128 68 116 216 230 941 1,220 1,340 869 43T 340 22 597 134 48 216 209 222 1,040 1,410 1,340 1.070 419 338 23 685 188 96 170 194 318 1,140 1,440 1,200 1,040 63* 378 24 678- 188 168 168 186 220 1,140 1,470 765 dee 613 4X5 26 569 ioa 189 200 174 254 1,130 1,460 726 952 60^ 444 26 664 99 116 304 166 318 1,060 1,500 703 950 66-)S3? 456 27 434 ids 143 318 166 367 1,080 1,500 720 960 441 28 262 101 142 276 158 462 1,270 1,510 765 1,020 66* 357 29 640 m 134 262 % 528 1.3OO 1,500 768 1,060 661 262 30 620 97 184 226 - 432 1,140 1,600 766 1,020 64* 233 31 600 "* 124 £09- -4 576 ." 1,470 - 983 631 - SeQQlKl IH«off in Month f foet-days Maxima Minima Mean a-ro-feet October...... ^. 17,827 631 252 569 34,370 Novenbef . ... . «<, 4,SB1 523 54 1S3 9,090 Deoeaber...... ^ 2,701 158 42 87.1 6,360 Calendar year 1942 ...... 201,629 1,890 48 56E 399,900 January . . . i .... 4,139 ' OJ.O*1 ft 60 134 8.210 n-t ft \&\ Febrnary...... 5,071 BJtO 149 iOL 10,060 March...... 8,146 5S8 159 i is&3OO3 16,160 April...... 22,640 1,300 379 756 44,910 May 43.303 1,640 946 1,397 86,890 AQrt June ...... 87,008 I »*WV 703 1,833 73,390 jttljr. '...... 90.308 1,480 fi*7rtOr U 978 60, ISO August...... 17,984 855 419 OOVcert 34,860 Septeaber ...... :...... ,. 16>116 685 233 S04 89,990 Water y»ar 1948«^3 ...... 807,669 1,640 42 669 411,900 Pacific ww tiw. Je convert war tl*e te standard tliw, subtract 1 hour. 206 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER Bear Creek near Vermilion Valley, Calif. Location.- Water-stage recorder, lat. 37°20', long. 118°58', In SWi sec. 12, T. 7 S. t R. 37 E., 2 miles upstream from mouth and 4 miles by trail south of Vernlllon Valley. Altitude of gage, about 7,400 feet (from topographic nap). Drainage area.- 53.5 square miles. Records available.- November 1921 to September 1943. Average discharge.- 19 years (1923-30, 1932-43), 87.6 second-feet. Extremes.- Maximum discharge during year, 910 second-feet May 27 (gage height, 5.95 feet); minimum recorded, 3.7 second-feet or less Dec. 6. 1921-43: Ifeximum discharge, 1,530 second-feet July 21, 1936 (gage height, 6.90 feet); minimum recorded, 1.2 second-feet Sept. 29 to Oct. 5, 1924. Remarks.- Records fair. No storage or diversion above station. Cooperation.- Water-stage recorder graph and several discharge measurements furnished by southern California Edison Co., Ltd., In connection with a Federal Power Commission project. Rating table, water year 1942-43, except periods of Ice effect (gage height. In feet, and discharge, In second-feet) 3.2 . 10 4,2 133 5.2 490 3.4 22 4.4 176 5.4 595 3.6 41 4.6 830 5.6 706 3.6 67 4.6 302 4.0 96 5.0 390 Discharge, In second-feet, water year October 1942 to September 1943 Day Oct. NOV. Dec. Jan. Feb. Mar. Apr. May June JuXy Aug. Sept. 25' 1 12 6^6 (*) (*) 25 70 261 470 276 139 24 86 268 354 260 124 12 24 37 260 247 291 106 23 4 12 5 24 85 212 192 332 93 23 0 12 6.6 26 80 195 160 364 86 a 11 6.5 27 66 294 167 368 76 23 1 11 - 27 67 341 203 316 74 n 11 7 b27 82 316 261 306 70 b34 60 247 272 324 66 10 11 6.5 b40 53 306 276 311 64 42 48 302 261 302 64 20 42 49 247 200 306 63 41 60 227 188 283 67 38 96 200 212 287 110 10 9.5 7.6 34 96 168 261 233 88 17 16 9 5.5 32 100 149 363 230 73 16 SO 124 137 425 221 63 16 37 147 128 445 216 64 19 7.6 11 37 149 143 446 188 53 20 7 b!2 34 129 164 400 178 48 13 21 6.6 bl2 33 166 209 386 178 43 13 32 173 319 302 171 -40 13 OX 30 aes 460 230 ias 36 24 6.5 blS 33 182 600 216 164 34 12 20 6.6 IS 43 173 666 196 166 31 23 9d 67 166 656 203 166 29 26 64 188 683 224 ' 171 28 21 90 237 676 294 176 27 20 29 ^ 80 167 600 315 164 27 , IS VA _ 66 176 465 296 163 26 17 12 (*) " 31 6.5 - 52 " 426 147 25 Seoond- Runoff in Month " foot-days Maxima Minima Mean acre-feet 274.0 12 6.6 8.64 643 276.5 13 6 646 Deoeaber ...... 341 11 676 Calendar year 1942 ...... 40,462.5 600 - 111 - 80,820 " 26 iterob...... 237 May 598 8*463 7' 380 62 1 Septeaber...... 673 26 12 19.1 1,140 ' later year 1942-49 ^ ...... 36,609.5 689 97. 6 70,640 » Winter discharge eajrureaeat Bade on this day. b Stage-discharge relation affected by lee. baalgj. Pacific war tlae. To convert war tlw> to standard tl», subtract 1 hour. SAN JOAQJJIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 207 Mono Creek near Vermilion Valley, Calif. Location.- Water-stage recorder, lat. 37°22', long. 118°59', in SWi sec. 35, T. 6 S., R. 27~~E7~(unsurveyed), 1 mile downstream from lower end of Vermilion Valley and 6 miles downstream from North Fork. Altitude of gage, about 7,400 feet (from topographic map). Drainage area.- 92.0 square miles. Records available.- November 1921 to September 1943. Average discharge.- 19 years (1922-30, 1932-43), 149 second-feet. Extremes.- Maximum discharge during year, 1,440 second-feet my 27 (gage height, 8.14 feet)j minimum recorded,-14 second-feet Nov. 8. 1921-43: rbxlmum discharge, 1,760 second-feet June 2, 1938 (gage height, 8.S2 feet); minimum, 6.5 second-feet Dec. 22, 1939. Remarks.- Records fair. No storage or diversions above station. Cooperation.- Water-stage recorder graph and several discharge measurements furnished by southern California Edison co. Ltd., in connection with a Federal Power Commission project. Rating table, water year 1942-43, except periods of ice effect (gage height, in feet, and discharge. In second-feet) 4.6 17 5..6 148 6.6 640 4'.9 25 5.8 204 7.0 745 5.0 36 ' 6.0 27g 7.2 655 5.1 49 6.2 352 7.4 970 5.2 65 6.4 442 7.6 1,090 5.4 102 6.6 540 7.8 1,210 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Ncv. Dec. Jan. Feb. Mar. Apr. May June July fcug. Sept. V 1 26 SI («) * b48 124 442 1,040 490 22f 54 2 26 21 (*) «b50 151 471 767 452 207 52 . 3 25 20 52 166 471 595 480 18C 52 4 25 20 54 174 456 495 515 164 51 5 24 28 54 174 4S8 419 560 151 51 '48 6 24 26 55 158 530 383 565 145 7 23 29 55 161 595 428 515 141 48 8 23 24 b52 174 580 505 500 133 48 9 23 23 b62 148 485 530 505 12f 46 10 23 23 b84 136 540 550 485 i2r 46 11 23 22 82 126 550 565 490 12C .45 12 24 23 72 126 495 471 471 115 41 13 23 21 72 143 466 424 442 12C 40- 14 24 23 68 183 433 437 442 14f 37 15 25 23 65 192 396 510 410 124 36 b32 b43 b56 16 24 22 62 204 356 625 378 113 36 17 23 26 59 240 335 740 365 104 35 18 23 48 70 276 302 816 339 9£ 33 "20 - 23 39 70 299 302 828 310 94 32 22 b38 65 280 348 756 287 se 32 - 21 22 b36 63 323 428 706 280 8f 3O 22 21 b37 60 361 530 560 272 7? 29 23 21 U37 59 392 670 471 265 74 29 24 21 b36 62 392 894 461 261 7C 29 25 21 36 70 387 1,050 437 265 61 48 26 20 35 86 339 1,110 437 265 ' 6? 52 27 20 37 94 374 1,160 447 268 6? 45 28 21 37 120 500 1,190 505 268 5S 41 29 19 35 _ 378 1,090 530 254 5S 37 30 21 34 (#) 109 356 899 510 230 57 36 31 21 - 104 ~ 844 - 230 54 - Second- ___ Rinoff in , Month foot-days Maximum Minimum Mean aore-feet October...... 704 26 19 22.7 1,400 November...... 882 48 20 29.4 1,750 December...... 992 32 1,970 Calendar year 1942 ...... 67,600 1,000 _ 185 134,100 January ...... 1,333 43 S r 640 February...... 1,568 56 3,110 March...... 2,204 126 48 71.1 4,370 Aoril ...... 7,437 500 124 248 14,750 18,846 1,190 6O8 37 , 380 June ...... 16,948 1,040 383 565 33,620 July...... 11,859 565 230 383 23,520 August ...... 3,439 226 54 111 6,820 September ...... 1,239 54 , 29 41.3 2,460 Water year 1942-43 ...... 67,451 1,190 - 185 133,800 * Winter discharge measurement made on this day. h Stage-discharge relation affected by ice. Time basis! Pacific war time. To convert war time to standard time, subtract 1 hour. 208 SAN JOAQUIN RIVER TRIBUTARIHS ABOVE FRESNO RIVER Huntlngton Lake near Big Creek, Calif. Location.- Water-stage recorder, lat. 37°14", long. 119°13', in SWi eec. 14, T. 8 S., R. 2£ E., in gate tower of dam. 1 on Big Creek, 2 miles northeast cf town of Big Creek. Datum of gage is at mean sea level. Drainage area.- 79.0 square miles. Records available.- October 1926 to September 1943. 1913 to 1926 8ur«ary records only, in Water-supply Paper 881. Extremes.- Maximum contents during year, 88,500 acre-feet July 25, 2f. Aug. 2 (elevation, fe',y'4y.B feet); minimum, 21,900 acre-feet Apr. 13 (elevation, 6,88r.l feet). 1913-43: Maximum contents, 90,000 acre-feet May 23, 1926 (elevation, 6,950-8 feet); minimum, 1,860 acre-feet Mar. 8, 1935 (elevation, 6,839.0 feet). Remarks.- Lake is formed by four dams; storage began Apr. 11, 1913. Dams were raised in 1914 and again In 1917. Usable capacity, 88,800 acre-feet betweer elevations 6,824.4 feet (center line of outlet tunnel) and 6,950 feet (spillway cr|st at dam 1) above mean sea level. Water Is used for power development in Big Creek plants. Records show contents at midnight, all of which Is available for release. Cooperation.- Record of contents, furnished by Southern California Edison Co., Ltd., obtained In connection with & Federal Power Commission project. Contents, In acre-feet, water year October 1942 to September 1943 Day Oct. HOT. DM. Jan. r«b. Mar. Apr. ' Hay Jun« July Aug. Sept. 1 87,600 36,400 72,60O 57,000 46,200 38,800 88,600 35,700 66,100 79,400 88,400 86,700 2 37,600 36,300 72,000 56,700 45,800 38,100 22,60O 35,OOO 67,800 79,800 88.SOO 86,800 3 87,600 36,300 71,400 56,500 45 t4OO 31,500 22,300 36,500 68,300 79,000 88.4OO 86,900 4 87.6OO S6.10O 70,800 56,100 45,000 30,900 83,000 37,700 69, EDO 79,300 33,400 86,900 5 87,600 85,600 70,200 55,700 44,500 SO, 300 23,100 38,600 69,900 79.8OO 88,400 S7.00O 6 87,500 84,806' 70,000 55,100 44,000 29,700 83-100 40,800 70,500 61,600 88,400 87,000 7 87,400 83,90O 69,300 54,600 43,600 28,800 83,100 41,300 71,400 83,600 88,400 37,000 a 87,300 83,300 68,600 54,800 43,300 88,900 23,800 43.6OO 78,400 35,500 88,300 37,000 9 87,2OO 82,500 67,800 -53,700 42,80O 89,000 83,100 48,100 73,300 37,100 88,100 87,000 10 87,100 81,800 67,000 53,600 48,300 89,100 88,300 46,600 74,100 87,200 88,100 87,000 11 87,000 31,000 66,200 53,100 41,800 89,800 28,400 48,100 74,800 37,300 S8,OOO 87,000 12 87,000 80,300 66,500 52,600 41,400 89,100 22,1OO 49,400 75,300 87,400 87,900 87,000 13 86,900 79,600 65,OOO 68,100 41,000 29,000 21,900 50,500 76,6OO 87,600 87,860 87,OOO 14 87,000 76.9OO 64,100 51,600 40,700 89,000 88,800 51.20O 75,900 87,800 87,800 86.9OO 10 87,000 7S.4OO 63,300 51,000 40,3OO 88,90O 22,500 51,'70O 76,300 88,300 §7,900 87,000 16 87,800 77,800 62,500 50,700 40,000 28,500 22,800 61,7OO 76,600 ea.soo 87,700 87,000 17 87,100 77,500 61,600 50,700 39,600 88,400 83,900 61,300 77,000 88,900 §7,600 87,4<>0 18 §7,200, 77,700 60, BOO 60,000 39,800 28, 200 24,000 60,600 77,800 88,960 87/400. 8?, SCO 19 87,200 77,400 60,000 49,300 38, $00 27,900 24,70* -so,ioo 77,400 88, SCO 87,100 67.800 20 87,400 77,100 58,400 48,900 S8,OOO 87,600. ,86,000 60,000 78,aoo 66,000 86,800 87,700 21 87,400 76,800 88,600 49,000 37,700 87,400 26,900 W,500 fr.ftgr 07,900 86,500 87,800 22 37,500 76,900 57,900 49,100 37,200 27, 1OO 86,700 51,600 79,900 63,100 66,200 87,400 & 87,600 76,800 57,700 49,OOO 36,600 26,200 87,600 S3.8OO 30,600 88,500 86,100 87.SO0 24 87,000 75,600 57,900 43,600 36,000 25,20O 28,30O 55,800 80,500 88,400 86,100 87,400 28 87,600 74,900 58,3OO 48,100 35,300 24,200 89,800 57,000 30,300 "06,500 86,100 87,600 26 37,600 74,800 58,200 47,300 34,600 23,700 89,600 58,800 30,100 88.50O 86,200 88,000 27 S7.3OO 74,300 59,200 47,500 34,000 23,300 30,100 60,600 79,900 88,400 86,300 88,3OO 28 36,700 73,900 58,000 47,100 33,500 83,100 31,700 68,300 79,800 86,400 36,400 88,400 29 86,700 73,700 57,700 46,900 _ 23,200 38,400 63,800 79,700 36,400 86,500 38,300 30 B6, 600 73,300 57,400 46,700 _ 23,100 32,800 64,400 79,500 .88,809, 86,600 88,1OO 91 86,500 - 57,OOO 46,400 - 22,800 - 68,100 - 88,1.00 86,700 - Monthly elevation and contents, water year Ootcrbsr 1942 to Sept^bes1 1943 Chaago i) seht«its Date Elevation Content* (fast) (acre-feet) 6,949.0 87,600 6,948.3 86,500 -1,166 6,93s. 1? 73,800 Bee, 31...... 6,986.6 -1(5!SQO Calendar year 1942...... - so. ooo 6,916.3 46,400 -10.606 6,903.9 33,500 . -18,900 6,890.9 88,900 -10,700 6,902.6 38,800 no ooo Hey 81 ...... ' 6,952.3 05,100 Jane 30...... 6,943.19 79, BOO *«j4do 6,949,5 88.1OO +8-800 6,948. S 86,70O -1,400 6,949.5 88,100 Mater year 1948-43...... - - +600 Paolfie war tine. Se convert war tttw to Btandftj-a fate, *ttb" SAN JOAQUIN flIVER TRIBUTARIES ABOVE FRESNO RIVER 209 Big Creek below Huntington Lake, Calif. Location.- Water-stage recorder, Parshall flume and concrete control completed Ort. 6, 1942, lat. Z7°IZ'IQV , long. 119°12'50", In NWi sec. 23, T. 8 S., R. 25 E., 800 feet upstream from Grouse Creek and 1,000 feet downstream from Huntlngton Lake. Altitude of gage, about 6,600 feet (from topographic maps). Drainage area.'- 80.0 square miles. Records available.- June 1925 'to September 1943 (records prior to October 1929 oily for periods or spill from Huntlngton Lake). Extremes.- Maximum discharge during year, 9 second-feet Jan. 21 (gage height, 1.87 feet); minimum, 0.3 second-foot many days In August and September. 1925-43: Maximum discharge, 2,040 second-feet June 23, 1925 (gage height,-10.3 feet), siphon spillways operating at Huntington Lake; minimum, 0.1 second-foe*; Sept. 10-13, Oct. 7-18, Dec. 5^16; 1931. Remarks.- Records good. Natural flow of Big Creek Is regulated at Huntington La'^e and during most of year Is diverted for power development at Big Creek powerhouse No. 1. Cooperation.- Water-stage recorder graph and several discharge measurements, furnished by Southern California Edison Co., obtained In connection with a Federal Powe^ Commission project. Rating table, water year 1942-43 except periods of backwater from debris (gage height, in feet, and discharge, 'in second-feet) 0.2 0.8 1.4 4.5 .7 1.0 2.7 1.6 6.5 1.3 1.2 3.6 Discharge, in second-feet, water year October 1942 to September Day Oct. NOT. Dec. Jan, Feb. Mar. Apr. Hay June July Aug. Sept. 1 aO.4 0.4 CO. 6 0.7 1.2 1.3 3.5 3.S 1.6 0.7 O.P 0.3 2 a. 4 .4 c.6 .7 1.2 1.3 3.7 3.6 1.4 .7 .e .3 4 a»4 .5 c.6 .6 1.2 1.6 3^9 3.9 1.3 .7 .5 .3 5 e.4 .5 c.6 .6 1,2 1.9 3.9 3.5 1.3 .7 .e .3 6 .4 .4 v, c.6 .6 1.2 1.9 3.S 3.3 1.2 .7 .5 .3 7 .4 .4 c.6 .6 1.2 1.8 3.9 3.1 1.2 .6 »5 .4 8 a. 4 .4 c.5 .6 1.2 2.4 4.1 2.9 1.2 .6 .5 .4 .4 9 a.4 .4 c.5 .6 1.1 6 3.6 2.8 1.1 .'6.6 .4 10 .4 .4 c.5 .6 1.1 5.5 3.4 2.7 1.1 .4 .4 n .4 .4 c.5 .5 1.1 3.9 3.4 2.6 1.1 .6 .4 .3 12 .4 .4 c.5 , .5 1.1 3.4 3.4 2.5 1.1 .6 .4 .3 13 .4 .4 c.5 .6 1.2 3.3 3.6 2.3 1.1 .6 .4 .3 14 .4 .4 c.5 .5 1.2 3.3 3.9 2.3 1.1 .6 .4 .3 15 .4 .5 .6 .5 1.3 3.0 3.9 2.3 1.0 .6 .4 .3 16 .4 .4 .4 .5 1.3 2 S 3*9 2.2 1.0 .6 .4 .3 17 2.4 .4 .5 1.3 3.4 4.0 2.2 1.0 .6 .4 .3 in ' .4'A 2.1 .4 .5 1.3 4.6 4.0 2.1 .9 .6 .4 .3 19 .4 1.6 .4 .5 1.4 3.5 4.0 2.0 .9 .6 .3 .3 20 .4 .9 .4 .5 1.4 3.2 3.9 1.9 .9 .6 .3 .3 21 .4 .8 .4 4.6 1.6 3.0 3.9 1.9 .9 .6 .3 a. 3 22 .4 .8 .5 4.2 1.6 2 9 3.9 1.8 .9 .6 .3 a. 3 ?X .4 .e 4.7 1.5 2.8 3.9 1.7 .9 .6 .3 a. 3 24 .4 .7 2.8 2.5 1.4 2.9 3.8 1.6 .8 .6 .3 a. 3 25 .4 .7 1.3 2.0 1.4 3.0 3.8 1.6 .8 .6 .3 a. 3 26 .4 .7 1.0 1.7 1.3 3.2 3.6 1.5 .8 .6 .3 a. 3 "27 .4 c.7 1.0 1.6 1.3 3.4 3.5 1.5 .8 .6 .3 a. 3 28 .4 c.7 1.0 1.4 1.3 3.6 5.5 1.4 .8 ,6 .3 a. 3 29 .4 c.7 1.0 1.4 _ 3.6 4.4 1.4 .8 .6 .3 a. 3 30 .4 c.7 .8 1.3 - 3.4 4.0 1.4 .8 .5 .3 a. 3 31 .4 - .8 1.2 - 3.3 ~ 1.4 ~ .5 .3 "" Seoond- F moff ia Month foot-days Uaxifflun ' IlinlBUB K»an aire-feet 0.4 0.40 25 November...... 4 .70 42 December...... 23.0 2.8 .4 .74 46 Calendar year 1942 ...... 551.9 6 - 1.51 1,100 J«iTmaT^r 37.9 4.7 .5 1.22 75 Febr 35.8 1.6 1.1 1.28 71 llaro 94.7 6 1.3 3.05 188 April...... 115.9 , 5.5 3,4 3.86 230 IfflV 73.2 4.0 1.4 2.36 145 31.2 1.6 .8 1.04 62^ July ...... 19.0 .7 .5 .61 38 Augu,Bt...... 11.9 .5 .3 .38 24 Septenber...... 9.4 .4 .3 .31 19 Water year 1942-43 ...... 485.4 6 .3 1.33 965 a Ho gage-height record; discharge. Interpolated. o Baolmater from debris in Farahall flume control. Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour. 210 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER Pitman Creek below Tamarack Creek, Calif. Location.- Water-stage recorder, lat. 37°12', long. 119°12', in NWi sec. 35, T. 8 S., R. 25 E., 500 feet downstream from Tamarack Creek, 3 miles upstream from mouth, and 3 miles southeast of town of Big Creek. Altitude of gage, about 7,100 feet (from topo graphic map). Drainage area.- 22.0 square miles. Records available.- December 1927 to September 1943. Average dlscharleT- 15 years, 39.9 second-feet. Extremes.- mxlmum discharge during year, 700 second-feet Apr. 28 (gage height, 7.00 feet), from rating curve extended above 520 second-feet by logarithmic plotting; minimum daily, 0.2 second-foot Sept. 11-24. 1927-43: Jfeximum discharge, 2,320 second-feet Dec. 11, 1937 (gag" height, 9.65 feet), from rating curve extended above 1,000 second-feet on basis of velocity-area studies; no flow part of Nov. 24, 1930, and during period Oct. 15-18, 1931. Remarks-.- Records good except those for periods of ice effect or no gage-height record and those below 1 second-foot, which are fair. No diversion above station; practically all flow diverted below station to Huntington-Shaver conduit. Cooperation.- Water-stage recorder graph and several discharge measurements, furnished by Southern California Edison Co., obtained, in connection with a Federr.l Power Commission project. Rating tables, water year 1942-45, except periods of Ice effect (gage height. In feet»and discharge, In aecond-feet) (Shifting-control method used Oct. 1 to Hov. 16, and Sept. 7-30) Oct. 1 to Apr. 26 Apr. 29 to Sept. 30 i.e 0.2 2.4 13 3.2 4.0 108 5.6 336 1.8 0.2 2.4 14 1.9 1.0 2.6 21 3.4 4.4 146 6.0 428 1.9 1.0 2.6 21 2.0 2.4 2.S 29 3.6 4.6 192 6.4 530 2.0 2.6 2.2 3.0 39 3.8 5.2 256 6.5 640 2.2 e Hote.- Same as preced ing table above 2.6 feet. Discharge, in eeoond-feet, water year October 1942 to September 1943 Day Oct. Nor. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.4 0 6 4.0 9 b!4 17 80 35 e 169 PO 2.3 aO.9 2 .4 7 4.0 8.5 b!3 17 103 336 145 20 2.1 a. 3 3 .4 7 M.O b7 b!5 IS 120 356 US 19 2.0 a. 7 4 .4 7 3.S b6 b!4 19 130 362 100 :s 2.0 a.6 5 .4 7 b3.0 b6 b!4 20 133 340 a99 16 2.0 a. 5 6 .3 7 b3.0 b6 b!3 . 20 106 373 a96 ]5 1.8 a. 4 7 .3 7 b3.0 b6 b!3 20 117 367 97 JS 1.6 .3 8 .3 7 3.0 b6 b!3 21 125 316 102 32 1.6 .3 9 .3 7 2.6 b5 b!3 b45 93 280 97 31 1.6 .3 10 .4 6 2.4 b5 13 b72 73 300 91 10 1.3 .3 11 .4 6 2.3 b5 * b!3 77 71 284 88 9 1.3 ' .2 12 .4 6 2.3 b5 b!3 71 66 896 77 8.5 1.2 . .2 13 .4 6 2.3 b5 b!3 62 a84 838 69 8 1^2 .8 14 .4 6 2.3 bS blS 51 aias EOS 67 7.5 1,2 v ' 2 15 .5 8 2.3 b5 bl6 46 «150 184 66 7 1.0 N .e 16 .4 .8 2.3 b5 b!7 42 a!57 169 67 7 al.O .2 17 .4 7 2.3 bS b!7 40 a!75 152 66 6 .9 .2 18 .4 47 2.1 M blS 59 al96 147 60 5.5 .9 .2 19 .4 23 2.0 M blS 52 aElS 166 54 5 .9 .2 20 .4 b7 2.0 b4 b!9 45 a211 188 48 4.9 .9 .2 21 .4 b6 i.e b!2 21 42 220 208 44 4.9 .9 .2 22 .4 5.5 2.0 b26 21 39 25S 232 39 4.7 .9 .2 23 .4 5.5 b!4 b27 20 36 258 269 36 4.2 .9 .2 24 .4 5.5 53 b22 19 39 270 264 33 4.0 .9 ..2 25 .4 bS 10 b26 17 47 269 265 30 3.6 .9 .3 26 .4 b5 blO b30 17 90 242 847 28 3.8 .9 .3 27 .4 4.9 b!2 b27 17 73 263 238 26 3.3 .9 .3 28 .5 5.5 12 b23 16 67 573 814 84 3.1 .9 .8 29 .5 4.7 11 b21 89 306 186 S3 5.1 .9 .3 30 .5 4.2 9.5 b!7 _ 99 312 157 21 2.6 .9 .3 31 .6 9 bis - 05 - 153 - E.4 .9 - Seoood- Runoff in Month foot-days Maxima Minimm Mean acre-feet October...... 12.6 0.6 0.3 0.41 25 November...... I . 146. 8 47 .8 4.89 201 December...... 199.3 53 l.£1 6.43 395 Calendar year 1942 ...... 20,407.9 532 .3 59.9 40j480 January...... 359.5 30 4 11.6 713 £ebruary...... 442 21 13 IS. 8 877 March...... 1,460 89. 17 47.1 2,900 April ...... 5,513 573 68 184 10,930 May...... 7,837 373 . 147 253 15,540 June ...... 2,082 169 21 69.4 4,130 July...... 262.0 20 2.4 8.45 520 August ...... 36.6 2.3. .S 1.23 77 September...... 9.7 .9 .E , .32 19 Hater year 1942-43 ...... 16,362.3 573 .£ 50.3 36,420 Peak discharge.- Atjr. 26 (6:30 a.m.) 700 sec. -ft.: Mav 3 (9 B.M. 1 643 see. -ft. a HO gage-height record; discharge computed on basis of records for Huntlagton-SBMtver conduit at outlet. b Stage-discharge relation affected by Ice. Time basis; Pacific war time. To convert war time to standard tine, subtract 1 hour. SAN JOAQUIN TRIBUTARIES ABOVE FRESNO RIVER 211 Shaver Lake near Big Creek, Calif. Location.- Water-stage recorder, lat. 37°09', long. 119°18', in SEi sec. 13, T. 9 S., R. Contents, in acre-feet, water year October 1942 to September 1943 Day Oct. Nov. Deo. Jan. Feb. liar. Apr. May June July Aug. Sept. 1 69,200 53,300 45,100 36,300 39,900 23,900 19,700 38,200 102,300 121,000 120,200 91,800 2 68,500 52,900 44,700 36,300 39,200 23,200 19,500 40,800 1.03,900 121,000 119,700 91,000 3 67,900 52,400 44,200 36,400 36,500 22,700 19,400 43,300 104,900 121,000 119,500 90,200 4 67,500 5E.OOO 43,800 36,100 37,900 22,400 19,600 45,400 105, 600 121,400 LI 3, 700 89,500 5 66,900 51,600 43,600 35,700 37,200 22,200 19,700 47,600 106,500 121,800 117,700 88,700 6 66,400 51,100 43,700 35,100 36,500 22,000 19,700 49,700 107,500 120,800 116,600 88,000 7 65,900 50,700 43,100 34,700 36,400 22,200 19,800 51,600 103,300 120,200 115,600 87,300 S 65,300 50,500 42,600 34,200 35,300 22,200 20,100 53,800 109,100 119,500 114,600 36,500 9 64,800 50,100 42 , 200 34,000 35,100 22,600 20,200 56,200 109,900 119,000 113,500 35,800 10 64,300 49,600 41,700 34,000 34,300 22,700 20,100 58,400 110,800 118,800 112,400 85,200 11 63,800 49,200 41,300 33,600 33,600 22,500 20,000 60,400 111,800 118,500 111,300 84,500 12 63,300 48,800 40,900 33,200 32,800 22,200 19,800 62,400 112,700 L1S,000 110,200 83,800 13 62,600 48,300 40,900 32,700 32,000 21,800 19,600 64,300 113,300 117,500 109,100 83,000 14 62,300 48,000 40,400 32,300 31,800 21,900 19,400 66,100 114,300 116,900 107,900 82,300 15 61,800 48,000 40,000 32,000 31,100 21,500 19,300 68,000 115,800 117,200 106,700 81,500 16 61,200 47,600 39,600 38,000 30,400 21,100 19,200 70,100 116,800 118,200 105,900 31,000 17 60,400 47,600 39,100 32,000 29,700 20,900 19,200 72,200 117,700 119,400 tos.ooo 80,200 18 59,700 48,400 38,600 38,000 2S, 900 20,800 19,600 74,100 113,600 120,300 104,100 79,500 19 58,900 48,600 38,200 31,900 28,300 20,500 20,000 76,100 119,400 120,800 103,200 78,800 20 58,400 46,300 38,100 30,000 27,700 20,000 20,400 78,000 120,100 121,000 102,200 78,000 21 57,900 48,000 37,700 35,400 27,800 20,300 21,000 80,000 120,400 120,900 101,300 77,500 22 57,300 47,900 37,200 37,400 27,400 19,900 21,900 82,000 120,600 120,700 100,400 76,500 23 56,900 47,700 3-7,100 39,600 26,900 19,700 22,900 84,200 120,700 120,600 99,400 75,700 24 56,400 47,300 37,400 40,100 26,300 20,100 24,200 86,300 120,800 120,600 93,600 74,900 25 56,300 47,000 37,500 40,500 25,700 20,200 26,300 38,400 120,800 120,500 67,700 74,100 26 55,900 46,700 37,600 40,800 25,000 20,200 27,800 90,400 120,900 120,400 96,800 73,400 27 55,300 46,300 37,700 41,100 24,400 20,200 29,300 92,400 120,900 L20.200 95,900 72,600 28 54,800 45,900 37,500 41,200 24,500 20,400 32,000 94,400 120,900 120,300 95,000 71,800 29 54,300 45,900 37,300 40,800 « 20,400 34,100 96,400 120,900 120,400 94,200 71,000 30 53,900 45,500 36,700 40,400 _ 20,200 36,100 98,300 120,900 120,600 93,300 70,100 31 53,400 36,300 40,400 - 19,900 - 100,400 - 120,600 92,500 ~ Monthly elevation and contents, water year October 1942 to Saptember,1943 Elevation Contents Change In contents Date (acre-feet) during month (feet) (acre- feet) Dec, 31...... 5,311.6 36,300 -9,200 _ _ -7,100 *"18 900 19 900 Sept. 30...... 5,336.0 70,100 -22,400 Time basisj Pacific war time. To convert war time to standard time, subtract 1 hour. 212 SAN JQAftUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER Huntlngton-Shaver conduit at outlet, Calif. Location.- Water-stage recorder and concrete control, lat. 37°10', long. 119°14', In/SWi sec. 10, T. 9 S., R. 25 E., at tunnel outlet, 4 miles south of to'Wi of Big Creek. Altitude of gage, about 6,680 feet(from topographic map). Records- available.- October 1928 to September 1943. Average discharge.- 14 years (1929-43), 189 second-feet. Extremes.- Maximum dally discharge during year, 1,600 second-feet Ap~. 28; minimum dally, 2.7 second-feet Oct. 22 to Nov. 12. 1928-43: Maximum dally discharge, 1,780 second-feet June 3, 4. 1938; minimum dally, 1.5 second-feet Sept. 12-16, 1934. Remarks.- Records good except those for period of backwater, which are fair. Conduit diverts water from Huntington Lake to Shaver Lake, with additions from Pitman Creek and seepage en route. Cooperation.- Water-stage recorder graph and seven discharge measurements,furnished by Southern California Edison Co. obtained In connection wltii a Federal Power Cora- mission project. Discharge, in second-feet, water year October 1942 tc September 1943' Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. ' Sept. 1 3.1 2.7 6.5 12 17 SO 274 1,540 1,500 420 187 3.9 2.7 6 11 16 SO 292 1,540 1,270 418 133 3.9 3.1 2.7 6 9.5 IS 20 318 1,540 1,020 416 162 C3.8 3.1 2.7 S.S 9 17 22 346 1,560 963 174 5 03.7 3.1 9.7 3.9 9 17 22 373 1,560 966 45 4.7 C3.6 6 3.1 2.7 4.4 8.5 16 23 364 1,570 970 44 4.7 C3.5 3.1 2.7 4.1 8 16 23 354 1,570 97S 43 4.4 C3.4 3.1 2.7 4.1 8 16 24 380 1,550 944 42 4.4 03.3 2.7 4.1 ' .5 16 48 341 1,540 995 42 4.1 C3.3 3.1 2.7 4.1 .5 16 75 299 1,560 1,050 41 4.1 C3.3 11 3.1 2.7 4.1 .5 16 79 2E5 1,550 1,050 40 4.1 C3.2 3.1 2.7 4.1 16 74 224 1,630 1,040 39 3.9 C3.2 13 3.1 2.9 4.4 16 64 217 1,530 1,040 39 3.9 03.2 14 3.1 2.9 4.4 18 54 266 1,510 1,040 39 3.9 C3.2 3.1 3.3 4.4 8 19 47 325 1,500 1,040 528 3.9 C3.2 16 3.1 3.1 4.4 8 20 42 365 1,500 1,050 870 3.9 C3.2 2.9 7.5 4.4 7.5 20 42 426 1,490 1,040 831 3.9 03.2 2.9 46 4.1 6 21 89 508 1,490 1,050 780 3.9 c3.2 2.9 as 4.1 S.5 22 54 589 1,490 1,040 616 3.9 c3.2 2.9 10 3.9 6 as 47 661 1,500 803 48S 3.9 c3.2 21 2.9 9 3.9 15 24 44 736 1,510 635 408 3.9 C3.2 8 4.1 31 24 42 8S9 1,530 607 408 3.9 c3.2 2.7 8.5 16 30 22 257 954 1,550 514 407 3.9 c3.2 24 2.7 9 56 25 21 494 1,040 1,570 470 407 3.9 c3.2 2.7 8 14 29 20 390 1,120 1,560 465 407 3.9 c3.3 26 2.7 7 13 33 20 330 1,140 1,550 44 S 430 3.9 c3.3 27 2.7 8 15 30 19 299 1,200 1,860 426 461 3.9 C3.3 28 2.7 9 16 26 19 292 1,600 1,530 424 508 3.9 C3.3 2.7 7 14 24 - 295 1,480 1,820 428 965 3.9 c3.3 2.7 7 13 20 - 232 1,470 1,510 420 586 3.9 C3.3 ' 12 18 - 228 - 1,800- SOI 3.9 Seoond- Runoff in Month foot-day* Maxima Minima Mean acre-feet 91.1 3.1 i fli Deoeaber...... 267.0 ' 66 3.r e. si 530 Calendar year 194 2 ...... 114,184.1 1.610 2.7 sis 226,500 orjA A* March...... 91 n ft&ft Bay...... 50 940 T JVT Sept saber...... 100.3 3.9 S.f 3.34 199 Water year 194 .'-43 ...... 108,933.0 1,600 S.T 298 216,100 c Backwater from algae or moss. fete.- Diacharge for Her. 23, 24, Apr. 21 to June 30, July 15^31, Sept. 3-70 computed on basis of irnpubTTahed records for intake, Pitman Greek Shaft, and eoepage inflow (3 Meondrfvet) in tunnel. Time b*»iai Pacific war time. To convert war tin* to standard tlae, aubtract 1 hour. SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 213 Willow Creek below Crane valley Reservoir, Calif. Location.- Water-stage recorder, lat. 37°17', long. 119°32', In SE$ sec. 26, T. 7 S., TT22~B., 1,500 feet downstream from Crane valley Reservoir spillway. Altitude of gage, about 3,200 feet (from topographic map)., Drainage area.- 50.8 square miles. Records available.- May 1940 to September 1943. Extremes.- Maximum discharge during year,. 557 second-feet Mar. 12 height, 4.93 reet;; minimum, 0.6 second-foot Oct. 3-8 and Sept. 17-25. 1940-43: Maximum discharge, 847 second-feet Feb. 11, 1941 height, 5.85 feet); minimum, 0.1 second-foot Nov. 13-16, 1940. Remarks.- Records fair. Flow regulated by Crane Valley Reservoir, capacity 45,000 acre- reet, and diversion J.nto Pacific Gas & Electric Co. conduit No. 3 near Crane Valley Reservoir (see following page). Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., ob- tainea in connection with a Federal Power Commission project. Rating tables, water year 1942-43 (gage height, in feet, and discharge, ' in second-feet) (Shifting-control method used Nov. 20 to Dec. 20) Oct. 1-11 Oct. 12 to Sept. 30 O.6 O.5 0.5 0.6 1.5 12 3.3 188 .7 .8 .6 .9 1.8 22 3.6 241 .8 1.3 .7 1.3 2.1 40 3.9 300 1.0 2.8 .8 1.8 2.4 66 4.3 392 1.2 5.3 .9 2.4 2.7 99 4.6 468 1.2 5.5 . 3.0 140 5.0 578 Discharge, in second- feet, water year October 1942 to Sept sober 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.7 O.9 0.8 0.8 207 67 143 0.9 164 0.9 0.8 0.7 2 .7 .9 .8 .S 99 66 125 .9 225 .9 .8 .7 3 .6 .9 .8 .S 58 66 125 1.0 140 .9 .6 .7 4 .6 .9 .8 .8 57 66 125 1.0 125. .9 .6 .7 5 .6 .9 .8 .7 56 70 125 1.0 150 .9 .e .7 6 .6 .9 a. 8 .S 153. 72 125 .9 139 .9 .8 .7 7 .6 .9 a. 8 .8 97 71 123 .9 L25 l.O .8 .7 8 .6 .9 a. 8 .8 76 116 125 .9 125 .9 .8 .7 9 .7 .9 a.e .8 74 300 125 .9 125 .9 .8 .7 10 .7 .8 a. 8 .8 38 533 94 .9 108 .9 .8 .7 11 .7 .8 a, 8 .8 1.1 539 59 .9 147 .9 .8 .7 12 .8 .8 a. 8 .8 17 401 59 .9 82 .9 .8 .7 13 .8 .8 a, 8 .e 31 307 69 .9 1.1 .9 .8 .7 14 .S .8 .6 .8 31 340 59 .9 1.7 .9 .8 .7 15 .8 1.2 .8 .8 SO 358 60 .9 1.1 .9 .8 .7 16 .8 1.0 .8 .8 29 344 36 .9 .9 .8 .8 .7 17 .8 2.3 .8 .8 29 346 1.2 .9 i.e .8 ,6 .6 18 .8 3.6 .9 .8 29 366 1.1 .9 1.2 .8 .8 .6 19 .8 1.4 .8 .8 28 258 1.0 .9 1.1 .8 .8 -.6 20 .8 .9 .8 1.0 .27 157 1.0 .9 1.1 .8 .8 .6 21 .8 .9 29 17 45 125 .9 .8 1.2 .8 .8 .6 22 .8 .8 .8 7 133 126 .9 .8 1.1 .8 .8 .6 23 .8 .8 1.3 173 133 126 .9 .8 .9 .8 .8 .6 24 .9 .8 1.3 516 133 63 .9 .8 .9 .8 .S .6 25 .9 .8 1.6 486 133 21 .8 .8 .9 .8 .8 .6 26 .9 .8 1.0 250 105 1.2 .8 2.1 .9 .8 .6 .7 27 .9 .8 .9 166 15 47 .8 4.8 .9 .8- .8 .7 28 .9 .8 .9 152 68 109 1.6 8.5 .9 .8 .8 .7 29 .9 .8 52 130 _ 134 1.0 10 .9 .8 .8 .7 30 .9 .8 38 230 - 166 .9 24 .9 ,8 .7 .7 31 .9 ~ .8 30O " 190 ~ 79 - .8 .7 - Second- tia.n Runoff in Month foot-days Maxiaun Minimm ltean aore-fset October...... 23.9 0.9, 0.6 0.77 47 November...... 30,6 3.8 .8 1.03 61 December ...... 143.7 52 .8 4.64 285 Calendar year 1942 ...... 20,939.1 373 .4 .57.4 41,530 January...... e, 443.1 516 .7 78.8 4,860 February...... 1,932.1 207 1.1 69.0 3,830 March...... 5,971.2 539 1.2 193 11,840 April ...... 1,580.8 143 .8 52.7 3,140 Hay...... 150.7 79 .8 4.86 299 June...... 1,673.9 225 .9 56.8 3,320 July...... !...... 26.4 1.0 .8 .85 52 August ...... 24.6 .8 .7 .79 49 September...... 20.1 .7 .6 .67 40 Water year 1942-43 ...... 14,081.3 539 .6 38.4 27,810 a No gage-height record; discharge interpolated, Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour. 214 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER Pacific Qas & Electric Co. conduit No. 3 near Crane Valley Reservoir, Calif. Location.- Water-stage recorder, lat. 37°17', long. 119°32', In SEi sec. 26, T. 7 S., R. 22 E., 1,000 feet downstream from Crane Valley Dam and powerhouse. Altitude of gage, about 3,300 feet (from topographic map). Records available.- October 1940 to September 1943. Extremes.- Maximum dally discharge during year, 154 second-feet Dec. 29, 30; no flow at times. 1940-43: Maximum dally discharge, 159 second-feet Aug. 22, 27, ?l, 1941; no flow at times during each year. Remarks.- Records good. Conduit diverts from Crane Valley Reservoir In sec. 26, T. 7 S., R. 22 E. Water passes through Crane Valley powerhouse, then to powerhouse No. 3 and eventually returns to Willow Creek. Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., ODtainea In connection with a Federal Power Commission project-. Discharge, in second-feet, water year October 1942- to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June Jvly Aug. Sept. 94 5.5 94 73 97 97 95 97 102 54 0.2 146 ? 94 9.5 99 70 96 9S 94 .9 55 3.0 145 4.8 17 93 73 96 97 95 100 .1 62 39 144 4.6 32 94 95 97 97 57 101 0 56 105 144 5 96 11 96 97 96 94 96 103 0 58 152 144 6 96 S 38 97 2.0 96 96 102 0 58 106 143 7 97 5.5 94 98 28 100 95 103 0 SS 14S 143 8 97 6 94 100 97 97 96 96 0 S7 150 143 9 97 12 99 68 97 -93 9S 0 10 7 5.5 92 59 97 108 99 110 0 S3 153 143 11 4.4 9 94 58 98 144 21 150 0 51 153 143 1? 96 11 94 58 95 139 94 150 53 76 152 143 96 12 43 51 93 97 96 150 49 7S 152 142 14 94 11 96 46 74 91 95 133 97 S2 152 142 15 96 15 96 48 98 114 93 96 117 77 152 142 90 69 96 51 96 139 62 97 117 7S 135 142 4.2 S6 93 44 96 96 94 105 122 78 132 142 6 0 92 46 97 99 93 102 92 20 153 142 19 40 75 95 36 96 100 96 102 69 78 152 69 20 27 93 63 56 97 9S 95 99 64 76 152 142 26 100 45 107 S5 92 83 71 72 33 152 142 25 92 96 91 98 98 94 97 57 48 152 142 27 92 96 90 98 116 99 11 76 80 152 142 7 94 96 76 98 161 100 102 76 97 152 141 25 5.5 94 101 96 97 133 24 99 77 33 152 140 oe 5 54 150 95 97 97 96 110 66 99 152 70 IS 94 150 96 98 96 98 152 68 100 152 142 9a 20 93 159 95 93 89 99 152 59 115 , 152 141 29 12 62 154 95 96 97 152 60 49 150 142 9(\ 15 94 154 104 _ 95 9S 151 60 3.0 149 137 31 5.5 - 57 18 - 95 ~ 151 ~ . 61 146 - Second- Runoff in Month foot-days Maximum Minimum Mean acre-feet October...... 1,400.0 97 4.2 45.2 2,780 November...... 1,362.0 100 0 46.4 2,700 December...... 2,995 154 38 96.6 5,940 Calendar year 1942 ...... IS, 377. 3 154 0 50.3 36,460 98 89.5 4,970 3,246 151 89 105 April...... 2,630 100 21 87.7 5,220 Hay...... 3,975 11 109 1,554.0 122 0 51.8 3,080 2,120.0 115 3.0 68.4 4,159.2 153 .2 134 8,240 September. ... r...... 4,126 146 69 138 3,180 Water year 1942-43 ...... 91,755.2 154 Q S7.0 62,980 Time baalBi Pacific war time. To convert war time to standard time, subtract 1 hour. SAN JOA.QUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 215 Fine Gold Creek hear Frlant, Calif. Location.- Water-stage recorder, lat. 37°03', long. 119°39', in NWi sec. 14, T. 10 S., R. HI E., 1,000 feet downstream from Willow Creek and 5i miles northeast of Friant. Altitude of gago, about 680 feet (from topographic map). Drainage area.- 89.2 square miles. Records available.- October 1936 to September 1943. Extremes.- Maximum discharge during year, 5,320 second-feet Jan. 21 (gage height, 14.56 feet); no flow Aug. 15-23, Sept. 3-12. 1936-43: Maximum discharge, 10,300 second-feet Mar. 12, 1938 (gage' height, 20.4 feet, from floodmarks), from rating curve extended above 6,500 sgcond-feet; no flow at times during each year. Remarks.- Records good except those above 200 second-feet and those for period of no gige-helght record, which are fair. No storage or diversions above station. Cooperation.- Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California. Discharge, in second-feet, water year October 1942 tc September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.9 2.0 3.7 S.5 144 43 107 40 ' 1614 3.8 0.3 0.2 2 2.0 3.4 3.5 102 40 100 39 3.3 .2 .1 7, 2.3 3.7 7.5 81 > 40 92 37 14 3.6 .2 0 4 3.0 3.7 7.5 ' 5767 52 8S 36 13 3.4 .2 0 5 2.5 3.4 7 148 91 34 12 3.2 .3 0 a. 5 fi 2.5 3.7 6.5 50 329 96 33 12 3.0 .3 0 7 2.4 .. 5 6.5 51 155 85 32 , 10 2.5 .3 0 n 2.3 4.8 6.5 175 207 96 29 10 2.1 .3 0 9 2.3 4.2, 6.5 101 453 37 28 9 2.0 .3 0 10 2.3 3.9 6 75 1,000 SO 26 9 2.0 .8 0 11 2.3 3.9 6 63 611 73 25 S 1.8 .8 0 1? 2.3 3.7 6 56 354 68 24 9 1.8 .8 0 13 2.3 3.7 5.5 49 258 64 22 10 1.7 .1 1 -2 14 2.3 3.7 5.5 45 251 61 22 9 1.5 .1 .3 IS 3.2 3.7 5.5 . 41 211 60 22 9 1.7 0 .4 Ifi 4.5 3.7 5.5 39 172 59 22 7.5 1.7 0 .3 t 6 3.7 5.6 36 311 56 22 7 1.5 0 .3 41 3.7 5.5 35 618 53 21 6 1.3 0 .3 19 70 3.7 5.5 33 293 51 19 5.5 1.2 0 .5 20 19 3.7 7 33 240 49 18 5.5 1.2 0 .6 8 3.7 725 41 222 47 IS 5.5 1.0 0 .4 6 3.7 302 78 215 44 17 6 1.0 0 .S 5 9.5 537 89 188 41 16 5.5 1.0 0 .2 4.2 54 300 89 165 40 14 5.5 .9 .3 .2 25 3.9 135 131 92 153 40 14 5 .8 .5 .2 Oft 3.7 4S 94 61 142 37 13 4,8 .7 .5 .5 1.9 3.9 25 123 52 131 36 12 4.5 .6 .4 1.0 28 2.O 3.9 17 77 47 123 91 12 4.3 .6 .3 1.2 2.0 3.7 13 71 - 124 56 12 3.3 .5 .2 1.0 2.0 3.7 11 377 - 161 47 12 3.8 .5 .2 1.0 31 2.0 ~ 9.5 274 - 118 - 14 .4 .2 " Second Fuaoff in Month foot-days Maximum Minimum Mean a-r re-feet October 39.3 1.8 0.2 1.27 78 222.5 70 2.0 7.42 441 December ...... 406.1 135 3.4 19.1 805 Calendar year> 1942 ...... 13,646.3 439 0 37.4 27,070 3,639.5 February <1,S82 7,523 1,000 40 243 1,997 May...... 705 40 12 22.7 1,400 244.2 ASIA July...... 52.3 3.8 ,4 1.70 5.8 $ 0 .19 12 September...... 9.1 i.ir 0 .30 18 Water year 1942-43 ...... 16,731.3 1,000 0 45.8 33,180 P#ak discharge.- Jan. 21 (lOrSO p.m.) 5,320 sec. -ft.; Jan. 23 (4 a.m.) 813 sec. -ft.; Jan. 30 (8 p.m.) 787 seo-.-ft.; Mar. 10 (3 a.m.) 1,690 sec.-ft.; Mar. 11 (1 a.m.) 1,090 sec.-ft.; Mr". 17 (lljSO p.m.) 1,400 sec.-ft. a No gage-height record; discharge computed on the basis of recorded range in stage, records fftr nearby streams, and weather records. Time baalai Pacific war time. To convert war time to standard time, subtract 1 hour. 216 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER Cottonwood Creek near Frlant, Calif. Location.- Water-stage recorder, lat. 37°00'05", long. 119°43'10", In SE£ sec. 6, T. 11 S., R. 21 E., l mile upstream from mouth and l mile northwest of Frlant. Altitude of gage, about 355 feet (from topographic map). Drainage area.- 38 square milps. Records available.- October 1941 to September 1943. Extremes.- 1941-42: Maximum discharge during year, 283 second-feet DOT. 31; maximum gage height, 3.88 fset, Dec. 27, backwater from construction dam; no flo'v Oct. 1-14, June 17 to Sept. 30. . 1942-43: Maximum discharge during year, 569 second-feet Jan. 22 (gage hslght, 3.89 feet, from graph based on gage readings); no flow Oct. 1 to Nov. 6, May 23 to Sept. 30. Remarks.- Records good except those for periods of backwater or those based on gage read- ings, which are poor. Cooperation.- Records collected and prepared In cooperation with Division of Water Res6ur"c6S, Department of Public works, State of California. Rating table, water years 1648 and 1643 (gage height, Ir feet, and discharge. In second-feet) 0.6 0.1 1.8 .7 .3 1.3 .8 1.6 1.6 .9 3.6 1.9 94 1.0 7.0 2.1 119 Discharge, In second-feet, 1941-43 1941-48 Day Oct. Nov. Deo. Jan. Feb. Mar. Apr. Uay June July Aug. Sept. 1 0 9 117 87 13 6 6 0.3 2 0 Z 64 36 18 6 6.5 .2 3 0 .2 48 86 11 6.6 2.9 .8 4 0 S 33 26 11 15 2.2 .8 * S 0 .2 89 46 11 13 2.0 .2 6 0 .2 84 76 11 6.6 1.9 .8 7 0 .8 88 76 8.6 7 1.9 .8 8 0 .2 21 48 a 6 1-7 .8 9 0 .8 19 46 8 6.6 1.6 .8 10 0 .2 17 37 7 6 1.4 .8 11 0 .a 16 33 47 7 1.7 .8 12 0 Z 16 SO 17 6 8.4 .8 13 0 .8 16 31 19 4.4 1.6 .8 14 0 .8 , el. 4 la 24 39 44 1.8 .1 IS .1 .2 IS 23 66 - 13 1.2 .1 16 .1 .8 13 84 27 8 1.2 .1 17 .S .8 14 El 84 9.6 1,1 0 18 .z .2 14 80 81 6.6 .6 0 19 .2 ,S 11 19 19 6.5 .6 0 20 ,z .8 6 17 16 4.7 .B 0 21 .2 .2 7.5 IB 12 4,2 ,7 0 22 .8 .8 10 44 11 4.8 .6 0 23 .8 .8 11 80 10 4-4 .3 0 24 ~S .S 61 80 10 3.1 .3 0 26 .2 .8 78 83 6.5 8.8 .3 0 ' « - 26 .8 .8 36 19 6 8.6 1.6 0 27 .6 .2 60 17 6 8.4 1.2 0 28 .7 .8 23 44 14 6 3.6 .8 0 » 29 .8 o.S *6 , 34 _ 7.6 3.9 .6 0 30 .6 o.S 90 38 ^ . 7 3.1 .4 0 31 9 " 89 29 - 6.5 - .4 e Backwater from construetlon dam. SflN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 217 Discharge, in second-feet, of Cottomreod Creek near Frlant, Calif., 1941-43 1942-43 Das Oot. MOT. Dec. Jan. Feb. Mar. Apr. May June July AUT- Sept. 1 Q 0.2 0.8 5.5 4.2 12 2.9 2 0 .2 .9 4.4 4.2 11 2.0 3 0 .2 .8 4.2 4.4 9.5 1.7 4 0 .4 .7 3.6 6 8.5 1.4 5 0 .4 .5 2-9 11 10 1.1 6 Q .3 .4 2.6 22 18 .8 7 .1 .6 .3 2.9 10 11 .5 8 .2 -5 .4 11 30 11 .3 9 .2 .4 .5 7 62 8.5 .2 10 .2 .5 .5 4.4 73 8 .2 11 .2 .5 .4 4.8 67 6.5 .2 12 .2 .5 .3 3.4 44 5.5 .2 13 .2 .3 .2 3.4 32 5 ' .2 14 .2 .4 .3 3.1 36 5 .2 IS .2 .5 .3 3.1 32 4.7 .1 16 .2 ..4 .3 3.4 23 3.9 .1 17 .2 .5 .3 3.1 46 3.9 .1 IB .2 .3 .3 2.9 67 3.4 .1 19 .5 .3 .2 2.2 36 3.1 .1 20 .2 .3 .3 2.0 28 2.9 .1 21 ^ .2 .3 16 2.6 26 2.6 .1 22 .2 '.8.3 694 5.5 31 2.4 .1 23 .2 g58 7.5 24 1.9 0 24 .2 1.5 g!5 11 20 1.7 0 25 .2 2.6 87 8 19 1.7 0 "* 26 .2 1.2 7 5 16 1.7 0 27 .2 -7 6.5 4.7 14 1.7 0 28 .2 .5 3.9 4.4 13 4.4 0 29 .2 .4 3.1 - 13 5 0 30 .2 .6 5.5 24 3.9 0 31 - .9 9.5 - 14 - 0 g Computed from graph baaed on gage readings. Monthly discharge, In second-feet, 1941-43 Second- Runoff in Month foot-days Maximum Minima Mean acre-feet 9 0 0.43 14.8 9 .8 .49 29 December...... 291.8 96 9.41 579 Calendar year ...... - - - - - Jfliwary 194S ,,,,,,, . , April ...... May 1.51 93 July...... 0 0 0 0 0 0 0 September...... 0 0 0 0 0 Water year 1941-42 ...... 2,854.7 11V 0 7.82 5,570 .17 9.9 December...... 17.5 2.6 .2 .56 35 Calendar year 1942 ...... 2,557.5 117 0 7.01 5,080 94 .2 7.55 465 128.0 11 2.0 , 4.57 254 March...... 851.8 73 4.2 87.5 1,690 18 1.7 5.95 354 May...... 12,7 2.9 0 .41 25 0 0 0 0 0 July...... 0 0 0 0 0 0 0 0 0 0 September ...... 0 0 0 0 0 Water year 1942-43 ...... 1,427.6 94 0 3.91 2,830 Pacific w«r time. To convert war tine to standard tine, subtract 1 hour. 218 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER Little Dry Creek near Frlant, Calif. Location.- Water-stage recorder, lat. 36°56'25", long. 119°40'55", In SEi sec. 28, T. 11 S., R. 21 E., 4 miles upstream from mouth and 4 miles southeast of Frlant. Datum of gage Is 357.02 feet above mean sea level (levels by state of California). Drainage area.- 58 square miles. Records available.- October 1941 to September 1943. Extremes.- 1941-42: Maximum discharge during year, 596 second-feet Dei. 29 (gage neignt, 3.85 feet); no flow June 23 to Sept. 30. 1942-43: Maximum discharge during year, 257 second-feet Jan. 22 (gage height, 2.94 feet); no flow Oct. 1 to Nov. 1, June 11 to Sept. 30. Remarks.- Records fair. Cooperation.- Records collected and prepared in cooperation with Division of Water Resources, Department of Public*Works, State of California. Rating table, water years 1942 and 1943 (gage height, in feet,an-! discharge, In second-feet) 0.8 1.3 3.5 l.S 2.4 109 .9 1.4 5.5 1.9 37 2.6 153 1.0 .3 1.5 9 2.0 48 2.S 210 1.1 1.0 14 2.1 60 3.4 425 1.2 2.0 21 Z.Z 74 Discharge, In aecond-feet, 1941-43 1941-42 D« Dot. Nov. Dec. Jan. .Feb. liar. Apr. Hay June July . Aug. Sept. 1 1.1 1.9 134 36 17 9 S.5 1.7 2 1.1 1.9 74 37 17 S.5 11 1.6 3 1.1 2.3 49 41 17 9 10 1.6 4 1.1 3.5 33 34 17 17 8 1.5 5 1.1 3.5 26 41 16 25 7 1.3 6 1.1 3.2 21 72 16 19 6.5 1.1 T 1.1 2.7 19 112 16 14 5.5 1.0 6 aO.l 1.2 2.3 17 77 14 11 5.5 .9 9 1.2 2.0 14 58 13 11 5.5 .S 10 1.3 5.3 13 50 16 10 5.5 .S 11 1.4 4.1 13 43 37 12 5.5 .8 12 1.4 4.3 11 40 29 11 6 .7 13 1.4 4.1 11 36 21 1O 5.5 .6 14 1.5 3.9 11 32 25 22 5 * .4 15 .5 1.6 4.7 10 28 52 28 5 .3 16 .5 1.6 6.5 10 26 35 15 4.7 .3 17 .4 1.7 8 9 24 29 13 4.5 .2 18 .4 1.8 8 9 22 24 16 4.1 .2 19 .4 l.S 7.5 S 20 2O 12 3.7 .1 20 .4 1.8 6.5 7.5 19 17 10 3.7 .1 21 .6 1.8 5.5 7.5 18 14 9.5 3.5 .1 22 .8 1.8 4.5 8.5 4O 12 9.5 3.2 .1 23 .9 1.8 4.5 14 27 12 9 2.9 0 24 .8 1.9 4.7 14 23 12 8.5 2.9 0 25 .8 2.0 4.7 87 27 11 7.5 2.9 0 26 .8 2.0 5 42 22 10 7 2.7 0 27 1.1 2.0 9 48 21 9.5 6.5 S.7 0 28 1.4 1.9 248 92 19 9.5 7.5 B.7 0 29 1.3 1.9 284 55 - 9.5 9 2.4 0 30 1.2 1.9 214 46 - 9 8.5 2.2 0 31 1.1 - 116 40 - 9 ~ 1.8 a Ho gage-height record; discharge estimated. SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 219 Discharge, In second-feet, of Little Dry Creek near Friant, Calif., 1941-43 Continued 1942-43 Day Oct. Mov. Dec. Jan. Feb. Mar. Apr. Hay June July /«g. Sept. 1 0 0.6 o.e 21 7 12 3.3 2 .7 .6 14 6.5 10 2.4 3 .6 .6 11 6.5 8.5 2.3 4 1.. 1.0 .6 9 8.5 9 1.9 1 1.0 .6 7.5 16 5 7.5 1.6 . eO.Ol 6 1.0 .6 6.5 43 8.5 1.6 7 .4 1.1 .7 5.5 22 8.5 1.2 8 .4 1.2 .6 30 36 9 1.1 9 .4 1.1 .6 23 117 7.5 1.2 10 .4 1.1 .6 13 123 7.5 1.1 11 .4 .9 .7 11 85 6.5 .8 0 12 .4 .9 .7 9.5 56 6 .7 0 13 .4 .9 .6 6.5 40 5.5 .5 0 14 .3 .9 .6 7 37 6.5 .2 0 15 .5 .9 .6 6 43 5 .2 0 16 .6 .9 .6 5.5 30 4.1 .2 0 17 .5 .9 .8 4.5 29 4.3 .2 0 18 .6 .9 .6 3.9 66 4.5 .3 0 19 1.2 .9 .7 3.9 44 4.5 .4 0 20 .6 .9 .9 3.7 35 4.7 .2 0 21 .6 .8 17 4.3 29 5 .Z 0 22 .6 .6 113 10 26 4.3 .2 0 23 .6 1.4 62 17 25 3.3 .1 0 24 .6 2.7 25 14 21 3.2 .1 0 25 .5 20 12 14 19 3.3 .1 0 26 .6 4.0 9.5 10 17 3.0 .1 0 27 .6 1.9 e 6.5 14 3.2 .1 0 28 .6 1.5 6.5 7.5 13 4.5 0 29 .5 1.2 5 - 13 6 e.05 0 30 .5 1.1 23 - 20 4.1 0 31 - l.O 56 - 14 - - a Ho gage-height record; discharge estimated, e Dally discharge less than 0.1 second-foot. Monthly discharge. In seoond-feet, 1941-43 Second- Runoff In Month foot-days Maximum Minimum Mean acre- feet October 1941 ...... 14.6 , 1.4 0.1 0.46 29 December...... 963.9 284 1.9 31.7 1,950 Calendar year ...... - - - - - March...... May...... 11 July...... 0 0 0 0 0 0 0 September...... 0 0 0 0 0 Water year 1941-42 ...... 4,137.9 284 0 11.3 8,210 December...... 55.0 20 .6 1.77 109 Calendar year 1942 ...... 3,161.8 134 0 8.66 6,270 697 March...... 6.5 May...... 1 0 .00? 0 0 September...... 0 O 0 0 0 Water year i94a-43 ...... 1,997.2 123 0 fr.47 3,960 Time basis i Pacific standard time prior to 2 a. Feb. 9, 194Ej Pacific war time ttereafter. To convert »ar time to standard time, subtract 1 ho 220 FHESNO RIVER BASIN Fresno River near Knowles, Calif. Location.- Water-stage recorder and concrete control, lat. 37°14', long.,119"46', In NWi sec. 15, T. 8 S., R. 20 E., at Fresno Crossing, 0.1 mile downstream from Bean Gulch and 6 miles northeast of Knowles. Altitude of gage, about 1,140 feet (from topographic map). Drainage area.- 132 square miles. Records available.- September 1911 to December 1913,. November 1915 to September 1943. Average discharge.- 28 years (1911-12, 1916-43), 84.2 second-feet. Extremes.- Maximum discharge during year, 3,570 second-feet Jan. 22 (gage height, 5.76 feet)J minimum, 4.0 second-feet Sept. 23, 24 (gage heigm;, 1.03 feet). 1911-13, 1915-43: Maximum discharge, 7,630 second-feet Mar. 12, 1938 (gage height, 8.67 feet); no flow at times In 1919, 1924, 1926, 1928-31, 1933-34. Remarks.- Records good. Water diverted Into Fresno River Basin above station from San Joaqu'ln and Merced River Basins. Small diversions above station for Irrigation. Rating table, water year 1942-43 (gage height. In feet, and discharge, In seconfl-feet) 1.0 3.0 1.5 57 2.6 560 1.1 6.3 1.6 84 3.0 S30 1.8 12 1.8 152 3.4 1,160 1.3 20 2.0 238 3.8 1,520 1.4 36 2.3 385 4.8 1,920 Discharge, in second- feet, water year October 1942 to September 1943 Day Dot. NOT. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 S.5 12 26 42 276 138 216 203 100 42 12 7 2 S.5 12 26 40 220 130 198 207 110 42 12 6.5 3 9 13 26 36 186 127 190 212 94 40 12 6 4 8.5 14 26 34 165 156 177 216 S4 40 12 6 5 8 14 25 33 152 320 181 196 ei 38 12 6 6 7.5 14 26 33 141 612 181 198 79 38 12 6 7 7.5 14 30 33 145 330 169 212 73 36 12 6 8 7.5 13 26 31 320 418 212 203 73 36 12 5.5 9 7.5 13 25 30 207 910 190 198 73 34 . 11 6 10 ,7.5 13 25 30 169 1,720 173 194 7O 34 10 6 11 8.5 13 25 28 160 830 169 194 68 31 10 6 12 10 13 25 28 148 566 190 190 66 30 10 6 13 13 12 25 26 138 440 181 190 73 28 9.5 5.5 14 13 12 25 26 12Y 458 173 181 73 28 9 6.5 15 12 16 25 26 , 123 424 177 177 68 28 9 5.5 ~62 16 12 25 23 26 116 335 £16 177 28 8.5 5.5 17 12 40 23 26 110 598 816 173 60 28 8.5 5 18 10 268 23 26 106 846 216 169 57 25 8.5 5.5 19 1O 268 22 23 106 506 212 165 57 20 8.5 5.5 20 10 SI 22 31 106 407 212 165 55 20 7.5 5 21 10 53 23 932 130 402 203 165 85 19 8 5 22 10 42 23 1,300 243 390 203 165 55 19 8.5 4.6 23 10 34 42 1,580 238 340 198 169 53 19 8.5 4.3 24 10 33 142 620 225 295 198 169 51 18 (8.5 4.3 25 10 31 152 315 229 266 194 156 49 17 9 5 26 11 28 97 225 177 247 194 113 49 ' 17 9 5 27 11 28 65 262 160 234 194 , 94 46 17 8.5 6 28 11 31 55 194 148 225 325 90 46 15 8.6 6 29 10 30 53 177 243 238 S7 44 15 8 6 30 11 28 49 800 290 216 87 42 14 7.5 6 31 12 42 470 234 97 13 7 Seoond- _.._ Runoff in Month fcot-days Maxima Uinioua **an aore-fset Ootc soe.s 13 7»5 9.09 608 Hoveatber ...... 1,218 268 12 40.6 2,420 Deoeinber...... 1,242 , 152 22 40.1 ' 2,46O Calendar year 1942 ...... 37,393.9 600 4.6 102 74,160 Janu ary 7,483 1,680 241 14,840 Febr 4,771 320 17O 9,460 Marc 13,437 1,720 127 433 26,650 Apri " 6,012 325 169 200 11,920 UAV 5,214 216 87 168 10,340 June 1,968 110 42 65.6 3,900 July 829 42 13 26.7 1,640 Augu 297.0 12 7 9.58 589 September...... 168.2 7 4.3 5.61 334 Vater year 1942-43 ...... 42,945.7 1,720 ' 4.3 118 85,160 Peak discharge.- Jan. 22 (1 a.m.) 3,570 sec. -ft.; Jan. 23 (7 a.m.) 2,48O see. -ft.; Jan, 30 (3 p.m.) 1/28O sec. -ft.; Mar. 10 (5r30 a.m.) 2,360 sec. -ft.; Bar. 17 (11 p.m.) 1,430 se«.-ft. Time basis: Paoific war tine. To convert war time to standard tine, subtract 1 hour. CHOWCHILLA RIVER BASIN 221 Chowchilla River at Buchanan dam site, Calif, - Location.- Water-stage recorder, lat. 37°13', long. 120°00', In SWi sec. 22, T. 88., R. IB E.J 1.4 miles upstream from Raynor Creek and 5 miles west ot Raymond. Altitude of gage, about 390 feet (from topographic map). Drainage area.- 238 square miles. Records available.- October 1921 to September 1923, October 1930 to September 1943. Average discharge.- 13 years (1930-43), 130 second-feet. Extremes.- Maximum discharge during year, 8,460 second-feet Jan. 22 (gage helgl-t, 11.20 reet); minimum, 0.3 second-foot Sept. 6. 1921-23, 1930-43: Maximum discharge, 18,900 second-feet Mar. 2, 1938 (gsge height, 14.4 feet, from floodmarks), from rating curve extended above 5,000 second-feet; no flow for part of each year except 1937, 1938, 1940-43. Remarks.- Records good except those below 20 second-feet, which are fair. No large dlver- slons above station. Rating tables, water year 1942-43 (gage height, In feet, and discharge, In secojid-feet) Oct. 1 to ftov. 3 Nov. 4 to Sept. 30 1.2 l.S .8 .6 1.3 6 1.9 25 3.1 145 5»B 740 1.3 3.4 .9 1.4 1.4 S 2.1 37 3.6 22S 5..S 1,060 1.4 5.3 l.O 2.2 1.5 10 2.3 53 4.0 31S 6.S 1,740 1.1 3.2 1.6 14 £.5 72 4.4 430 7.9 E,760 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June . July An*. Sept. 1 1.2 3.2 19 37 387 234 2S9 130 47 14 l.s 0.6 2 1.3 3.2 19 35 389 215 268 120 58 14 1.6 .5 3 1.4 4.9 19 33 242 201 252 116 50 14 1.3 .5 4 1.4 S.5 19 32 208 £55 242 110 46 13 1.2 .4 5 1.4 11 IS 30 1S7 591 240 105 42 13 1.3 .4 6 1,3 10 IS 29 170 1,380 257 101 3S 13 1.3 .4 7 1.2 10 24 29 157 557 £34 97 36 12 1.3 .4 8 1.2 10 25 27 561 722 252 91 35 11 1.3 .5 9 1.2 9.5 23 27 354 1,750 250 86 33 10 1.3 .5 10 1.4 9 22 26 277 2,760 226 S2 32 10 1.2 ' .6 11 l.S 9 21 26 230 1,610 £12 79 30 9 1.2 .6 12 2.1 9 20 25 208 S64 201 75 30 8 1.0 .6 13 2.9 9 20 24 1S9 650 189 73 33 7 .9 .6 14 4.7 S.5 ' 19 24 173 621 1S4 71 35 6.5 .8 .7 15 3.S 10 IS 24 160 694 178 70 32 6 .7 .7 16 3.4 13 IS 24 148 506 174 70 28 6 .6 .6 17 3.1 16 17 24 133 751 171 69 25 6 .6 .6 18 2.S 319 17 23 126 1,440 163 a66 £2 6 .6 .7 19 2.4 397 17 22 121 663 157 a 63 21 5.5 .6 .7 20 2.1 96 17 26 116 549 151 a60 21 5.5 .6 .7 21 l.S 50 17 1,480 126 510 145 a57 21 5 .6 .6 22 1.7 36 17 2,500 339 668 139 a54' 20 4.7 .6 .6 23 1.5 29 24 1,330 396 456 133 a51 21 1 4.4 .7 .6 24 1.5 24 98 S19 347 406 129 4S 19 4.£ .9 .6 25 1.7 22 263 37S 736 37S 126 44 IS ' 4.0 1.2 .6 26 2.0 21 152 275 411 360 121 42 IS 3.6 1,3 .8 27 2.3 21 77 370 311 339 120 40 17 3.4 1.3 1.1 28 2.4 23 58 24S 261 318 213 39 16 3.0 1.0 1.5 29 2.6 23 50 206 316 197 38 15 2.8 .S l.S 30 2.S 20 46 1,330 430 151 38 15 2.4 .7 2.0 31 3.1 40 857 SIS 42 2.0 .6 Month £35. Minlaun 118311 _,_ acre-feetRunoff in Octc 65.6 4.7 1.2 2.11 130 Neve nber...... 1,334.8 397 3.2 41.2 2,450 Dece:Bber...... 1,232 263 17 59.7 2,440 Calendar year 1943 38,943.4 995 .4 107 77,250 Janu ary 10,640 2,500 22 350 21,500 Febr 7,365 736 116 263 14,610 Hare 21,414 2,760 201 691 42,470 Apri 1...... 5,764 289 120 192 11,430 May. 2,227 130 38 71.S 4,420 June S74 58 15 29.1 1,730 July 229.0 14 2.0 7.39 454 Augu 30.9 l.S .6 1.00 61 SepteBber...... 21.5 2.0 .4 .72 43 Hater year 1942-43 ...... 51,297.7 2,760 .4 141 101,700 Peak discharge.- Jan. 22 (1 a. ml) 8,460 sec. -ft.; Jan. 23 (7:30 a.m.) 3,650 sec. -ft.; Jan. 30 (Si-30 p.m.) 3,080 see.-ft.; Bar. 6 (1 a.m.) 2,180 see. -ft.; Bar. 10 (7:30 a.m.) 4,100 sec. -ft.; Mar. IS (1 a.m.) 2,960 sec.-ft. a Ko gage-height record; discharge interpolated. Time baaia; Pacific war time. To convert war time to standard time, subtract 1 hour. 222 MERCED RIVER BASIN Merced River at Happy Isles Bridge,' near Yosemlte, Calif. Location.- Water-stage recorder, lat. 37°43'54", long. 119°33'28", at Hrppy Isles Bridge, 0.4 mile downstream from Illllouette Creek and li miles southeast of Yosemlte Lodge In Yosemlte National Park, Marlposa County. Altitude of gage, about 4,000 feet (from topographic'map). Drainage area.- 181 square miles. Records available.- August 1915 to September 1943. * Average discharge.- 28 years, 339 second-feet. Extremes.- Maximum discharge during year, 3,480 second-feet June 1 (gage height, 7.34 feet); minimum, 9 second-feet Nov. 6, 7. 1915-43: Maximum discharge, 10,600 second-feet Dec. 11, 1937 (gage height, 10.4 feet), from rating curve extended above 4,000 second-feet on basis of velocity-area studies; minimum, 1.5 second-feet Sept. 30, 1926. Remarks.- Records good except those below 50 second-feet, which are fair, Small diver- sion above station for water supply of Yosemlte Valley. Rating table, water year 1942-43 (gage height, In feet, and discharge, In second-feet) 1.5 10 2.3 78 3.S 510 5.5 1,4S1 1.6 15 2.6 129 4.2 690 6.0 1,391 1.8 26 3.0 230 4.6 900 6.5 2,331 2.0 42 3.4 360 5.0 1,140 7.1 3,121 Discharge, in second-feet, water yesr October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. ar. Apr. Hay June July Aug. Sept. 1 15 10 62 91 118 128 *00 1,400 5,010 785 aSOO 43 2 15 10 59 86 115 131 518 1,570 1,910 750 a 350 41 3 13 11 70 74 108 137 56S 1,500 1,200 V80 a 320 39 4 13 12 60 70 108 144 568 1,350 900 P25 a L90 39 5 12 12 47 70 106 166 572 1,280 750 852 a!70 38 6 12 10 44 59 108 168 490 1,580 755 ess a!60 33 7 12 11 39 59 115 159 514 1,710 978 eoo a 150 37 8 12 11 42 58 111 189 590 1,530 1,210 715 a L30 37 9 12 11 41 54 109 339 462 1,290 1,320 725 a L20 38 10 12 10 38 54 109 409 395 1,460 1,270 e?5 a!20 38 11 14 10 3S 52 109 325 364 1,470 1,300 eso allO 36 12 14 10 38 51 115 290 378 1,280 1,110 f40 LOS 32 13 13 10 37 51 124 287 458 1,190 948 ei3 a 105 30 14 13 10 35 52 140 287 695 1,070 978 604 a LOO 27 15 13 IS 34 56 155 254 882 948 1,090 eis a!05 25 16 13 20 35 56 166 230 906 820 1,890 E34 a!05 24 17 12 96 36 47 162 233 972 760 1,580 tes L02 22 18 12 372 35 38 162 248 1 >05O 710 1,660 446 L01 21 19 12 159 34 45 162 224 1 ,060 815 1,620 409 190 20 20 12 - 88 33 52 171 212 984 1,030 1,400 83 19 21 12 83 32 298 181 218 1,07fl 1,170 1,240 406 78 18 22 12 84 37 367 181 206 1,240 1,480 912 374 72"74 17 23 12 84 163 364 159 197 1 ,360 1,930 785 2*6 16 24 11 8S 316 233 148 218 1 ,320 2,440 730 3*6 67 v 16 25 11 31 «._ 152 200 142 272 1,289 2,540 685 339 82 18 '700 26 11 67 118 178 133 342 1,050 2,440 St9 . 58 22 27 10 81 115 171 129 395 1 ,078 2,480 TOO 3*52 53 24 28 10 86 115 148 122 494 1, 9?(| 2,450 805 3?6 50 24 29 10 70 116 144 _ 542 1,199 2,180 870 336 46 24 30 10 67 101 135 . 426 1,020 1,780 800 577 45 22 31 10 94 127 - 374 - 1,820 ~ 3«8 44 ~ Seoond- Runoff in Month foot-days Uaximui Minimum Mean acre-fest October ...... 375 15 10 12-1 744 November...... 1,698 372 10 56.4 3,360 December ...... 2,216 316 32 71.5 4,400 Calendar year 1942 ...... 161,304 2,490 10 442 320,000 January ...... 3,540 367 38 114 7,020 February ...... 3,768 1S1 106 138- 7,470 March...... 8,241 542 125 266 16,350 April ...... 25,396 1,970 364 847 50,370 Bay...... 47,523 2,540 710 1,533 94,260 June...... 34,446 3,010 685 1,148 63,320 July...... 17,297 888 332 558 34,310 August ...... ^ ...... 3.468 300 44 112 6,880 September...... 845 43 16 28.2 1,680 Water year 1942-43 ...... 148,807 3,010 ,10 408 295,200 a Ho gage-height records discharge eo»j*ited on basis of records 'for Merced River at Pohonc Bridge and Tenaya Creek near Yosemite. Note., Doubtful gage-height reeord Oct. 1 to Bov. 4, Sept. 3-18 \ discharge eomr-ited on oasis of records for Merced Riv«r at Pobono Bridge and fenaya Creefc near Yossmite. Tliae basis; Pacific war tl»e. fo convert war tins to standard titta, subtract 1 hoar. MERCED RIVER BASIN 223 Merced River at Pohono Bridge, near Yosemlte, Calif. Location.- Water-stage recorder, lat. 37°43'01", long. 119°39'55", 0.4 mile upstream from Artist Creek and 5 miles downstream from Yosemite Lodge, In yosemlte National Park, Marlposa County. Altitude of gage, about 3,870 feet (from topographic r«p). Drainage area.- 321 square miles. Records available.- November 1916 to September 1943. Average discharge.- 26 years (1917-43), 591 second-feet. Extremes.- Maximum discharge during year, 6,370 second-feet Apr. 28 (gage height, 9.53 feet): minimum, 26 second-feet Nov. 3. 1916-43: Maximum discharge, 22.000 second-feet Dec. 11, 1937 (gage height, 19.1 feet from floodmarks In gage house), by computation of flow over diversion dait for Yosemlte powerhouse 1 mile downstream; minimum, 3.3 second-feet Sept. 29, Oct. 1, 1924. Remarks.- Records good. Small diversion above station for Yosemlte Valley water supply. Rating table, water year 1942-43 (gage height, in feet, and discharge. In second-feet) 0.8 26 2.4 291 1,370 .9 32 2.5 403 2,240 1.1 50 3.2 53S 2,640 1.5 75 3.6 705 7.0 3,100 1.5 101 4.0 910 7.5 3,620 1.8 153 4.5 1,200 S.O 4,200 2.1 218 5.0 1,520 8.8 5,240 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 34 27 157 261 310 332 932 2,930 5,160 1,050 351 60 2 34 27 159 247 299 332 1>160 3,170 3,720 992 32" 58 3 32 29 191 213 288 342 1,270 3,000 2,230 998 273 57 4 32 30 163 209 284 351 1,280 2,300 1,680 1,050 24:? 57 5 31 30 137 211 281 406 1,310 2,580 1,400 1,070 2ie 56 20"! 6 31 28 122 191 281 419 1,080 3,040 1,360 1,120 56 7 30 28 112 186 302 391 1,180 3, ISO 1,600 1,010 IS* 56 8 30 28 114 1S4 291 451 1,390 2,990 1,390 899 18? 56 9 29 28 114 171 256 825 1,060 2,470 3,000 888 16^ 57 10 29 27 111 171 264 1,070 916 2,700 U930 825 15fl 57 11 33 27 106 161 286 835 850 2,720 2,000 785 153 56 12 33 27 103 151 294 720 894 2,420 1,760 765 14S 53 13 32 27 101 148 313 700 1,100 2,260 1,520 735 13!l 51 14 32 27 101 151 337 706 1,560 2,070 1,520 710 137 48 15 32 34 100 157 365 615 1,840 1,830 1,620 715 144 46 16 32 39 100 159 365 556 1,910 1,600 1,800 633 14* 44 17 31 188 101 135 382 575 2,040 1,490 2,040 560 137 42 I2i" 40 1R 31 1,380 9895' 112 376 599 2,200 1,440 2,200 531 19 31 565 117 379 542 2,240 1,620 3,180 495 117 39 20 30 269 93 148 403 509 2,070 1,840 1,960 467 111 38 21 29 220 88 606 432 516 2,180 2,060 1,760 474 10i5 36 22 . S9 216 98 1,090 432 498 2,480 2,520 1,370 438 90 35 23 29 218 369 1,050 391 474 2,730 3,120 1,180 422 9,^ 34 ?4 28 225 1,050 651 373 509 2,680 3,950 1,070 403 87 33 25 28 211 470 516 362 615 2,600 4,220 998 394 83 34 26 28 171 534 474 351 770 2,150 3,970 992 388 77 38 ?7 27 204 340 432 362 877 2,150 3,920 970 373 72 40 370 346 1,050 4,810 It 080 373 68 41 ?fl 27 228 . 318 3,890 65 29 27 177 326 365 _ 1,200 2,760 3,470 1,160 367 41 30 27 167 288 370 _ 916 2,270 '2,870 1,080 560 63 39 31 37 271 340 - 830 - 2,960 - 441 61 ~ Seoond- Rmoff in Month foot-days MaxivuB Minima Mean a -.re- feet 935 34 27 30.2 1,860 4,892 1,380 27 163 9,700 December, ...... 6,330 1,050 88 204 12,560 Calendar year 1942 ...... 297,268 4,950 27 814 589,700 9,747 1,090 314 19,330 February .... 9,424 432 256 337 18, 590 19,530 1,200 630 38,740 55,092 4,810 860 1,836 109,300 May...... 86,100 4,220 1,440 S.745 168,800 63,230 5,160 970 1,774 105,600 20,921 1,120 3«7 675 41,500 August ...... 4,642 359 61 147 9,010 September...... 1,398 60 33 46.6 2,770 Water year 1942-43 ...... 271,141 5,160 27 743 637,800 Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour. 224 MERCED RIVER BASIN Merced River at Klttrldge, Calif. Location.- Water-stage recorder, lat. 37°39', long. 120°11', In sec. 26, T. 3 S., R. 16 u., u.2 mile downstream from Whites Gulch, a quarter of a mile dowrstream from Klttrldge, and 3i miles downstream from Bagby. Altitude of gage, sbout 750 feet (from topographic map). Drainage area.- 935 square miles. Re cor available.- November 1928 to September 1943. November 1922 tc November 1928 at site it miles aownstream. Average discharge.- 17 years (1923-27, 1929-30 1931-43), 1,284 secone-feet. Extremes.- naximum discharge during year, 27,Qi 0 second-feet Jan. 21 (gage height, 19,70 feet); minimum, 73 second-feet Sept. 24-26. 1922-43: Maximum discharge, 59,000 second-feet Dec. 11, 1937 (rage height, 31.0 feet, from floodmartcs), from rating curve extended above 11,000 second-feet on basis of velocity-area studies ana records of storage Increase In Lake McClure; minimum, 13 second-feet Oct. 5, 1925. Remarks.- Records good. No large diversions above station. Rating table, water ye*r 1942-43 (gag* height. In feet, and discharge, In second-feet) 0.7 74 2.6 400 6.0 1,540 10,0 6,900 .9 96 3.0 654 6.0 2,250 11.0 8,610 1.2 134 3.5 746 7.0 3,150 12.0 n.280 1.6 196 4.0 930 6.0 4,220 13.0 1".080 2.0 274 4.6 1,240 9.0 6,470 13.6 15,100 Discharge, in second-feet, water year October 1942 to Septenbe* 1943 Day Dot. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 93 92 406 637 2,340 1,680 2,480 5,000 6,870 1,380 498 110 2 92 92 375 608 1,880 1,830 2 ,700 6,710 6,330 1,310 431 108 3 89 98 420 584 1,590 1,470 2,940 5,210 3,680 1,270 592 106 4 37 115 428 501 1,430 1,670 2,920 5,180 2r760 1,310 546 103 5 86 115 367 479 1,350 4,630 3,040 4,560 2,270 1,380 310 102 6 85 108 328 464 1,270 7,130 2 ,690 5,170 2,080 1,370 887 100 7 83 104 333 437 1.380 3,660 2,600 5,470 2,360 1,310 368 93 8 32 102 308 420 2,480 3,600 3,070 6,310 2,780 1,170 254 93 9 SI 101 310 397 1,870 7,700 2 ,680 4,360 2,970 1,110 348 97 10 81 101 303 386 1,530 12,000 2.330 4,670 2,880 1,080 232 98 11 87 100 294 380 1,520 7,420 2,140 4,720 2,940 1,080 220 100 12 104 93 292 364 1,460 4,600 2 ,060 4,810 2,660 975 212 100 13 112 95 281 389 1,410 3,660 2,.230 3,020 8,200 960 ! 303 97 14 103 94 276 366 1,400 3,510 2,030 3.590 2,100 916 196 95 15 100 106 272 362 1,400 3,330 3,470 3,190 2,860 888 194 92 16 97 153 268 376 1,390 2,790 3,630 2,810 2,440 866 800 80 17 97 332 272 369 1,360 2,950 3,880 2,620 2,720 772' BOO 87 18 95 5,300 270 see 1,320 3,880 4 ,020 2,440 8,900 606 193 84 19 93 3.040 254 287 1,260 3,120 4,170 2,700 2,890 660 180 88 20 90 1,040 284 356 1.310 2,710 3 ,010 3,070 2,640 616 170 ea 21 39 686 280 9,190 1,380 2,600 3,360 3,400 2,360 500 164 SI 22 89 581 242 10,200 2,010 2,540 4,320 3,980 1,960 590 159 77 23 88 520 468 13,100 1,990 2,270 4,360 4,830 1,640 554 154 76 24 88 504 2,980 6,780 1,880 2,160 4,710 6,180 1,810 627 147 74 25 83 494 2,310 3,080 2,290 2,210 4,740 6,630 1,410 610 142 78 26 89 446 1,270 2,370 2,060 2,390 3,900 6,160 Iy860 408 137 78 27 92 411 1,000 2,700 2,180 2,800 3,780 5,940 1.380 488 131 , 77 28 89 586 886 2,070 1,840 2,700 8,460 6,990 1,570 470 127 84 29 88 479 876 1*900 _ 3,080 6 ,080 8,800 1,460 478 L19 86 30 88 480 772 5,930 _ 2,880 8,090 4,870 1,480 498 118 87 31 90 684 8,770 - 2,470 -_ 4,820 649 118 Second- Runoff In Month foot-daya Maxim* Minima Mean ore-feet October...... 2,815 US 81 00.8 5,680 November...... 16,468 6,300 98 82,680 December...... 18,084. 2,980 S43 8S8 88,770 Calendar year 1942 ...... 616,978 8,860 81 1,000 1^824,000 January ...... s. .. 60.506 13, 100 887 8,842 137,900 Febr uary...... 46,510 2,480 1*870 .1,661 98,860 Marc 110,780 12,000 1,470 3,872 219,600 April...... 108,500 8,450 2,060 8,617 316,200 mKV 141,050 6,680 8,440 4,880 879y800 June ...... 76,710 6,870 1,330 8yS87 162,800 July...... 26,308 Ik 870 470 868 63,170 August...... 6,741 498 1,118 78 817 13,870 September...... 2,718 110 00.8 5,800 Water year 1942-48 ...... ^ ...... 688*660 13,100 78 1,717 1,243,000 Feak discharge.- Jan. 81 (11 p.a.) 87,000 c.-ft.j Jan. Bf (« *.».) 81,400 8->e.-ft.j Jan. 30 {4180 p.W.) toyrtO eec.-ft.j Mar. 6 (4 a.*.) 10,409 »ee.-ft.| kr. 10 (f a.m.) 18,700 Bee, -ft. I Apr. 88 (1 p.m.} 12,600 «ee.-f«. lime baalat Paelfle xar tlaw. Ie convert war tbte tii standard tfea«, iu>trae* 1 hour. MERCED RIVER BASIN 225 Lake McClure at Exchequer, Calif. .- Indicator in powerhouse, lat. 37°35', long. 120°16', in SW$ sec. 13, T. 4 S., n. JLO~B., at Exchequer Dam on Merced River, 5 miles northeast of Merced Palls. Datum of gage is at mean sea level'(levels by Merced Irrigation District). DralRafie area.- 1,020 square miles. Records available.- April 1926 to September 1943. Kxtremea.- Maximum contents during year, 285,600 acre-feet June 18, 19 (elevatloi, 708.6 feet); minimum, 93,300 acre-feet Sept. 30 {elevation, 610.4 feet). 1926-43: Maximum contents, 289,400 acre-feet June 4, 1938 (elevation, 710.0 feet); practically no storage at times in 1926, 1930, 1931, 1934. Remarks.- Reservoir is formed by concrete gravity-type dam completed in 1926; storage began in April 1926. Usable capacity, 280,900 acre-feet between elevations 442.6 feet {bottom of sluice valve) and 707.0 feet {top of spillway gates) above mean se^i level. Water passes through power plant at dam and down Merced River to diversion dam of Merced Irrigation District's main canal. Records show total contents at midnight; dead storage, 400 acre-feet or less. Cooperation.- (Jage-height record, furnished by Merced Irrigation District, obtained in connection with a Federal Power Commission project. Contents, In acre-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 124,400 97,000 130,500 167,800 246,000 244,600 237,700 237,400 MB, 100 879,400 831,600 166,500 2 122,700 97,000 131,300 169,100 245,600 244,600 237,200 239,400 886,400 878,900 288,200 153,800 3 121.000 97,300 132, 100 170,300 246,100 244,600 237,000 240,100 £81,800 878, 100 836,900 160,900 119,300 97,500 132,9.00 171,200 244, 400 244, 600 237,000 241,000 879,100 877,800 884,400 148,800 1 117,600 97,600 133,700 172,200 243,900 250,800 236,700 841,000 878,600 877,600 881,900 146,600 6 116,000 97, 600 134,300 173, 100 243, 200 257, 800 236,200 248,800 879,100 377,000 219, SOO 144,400 7 114, 400 97,700 135,000 173,900 243, 700 856,000 235, 500 243,900 080,800 876,300 316,800 148,200 8 112,600 97,900 135. 600 174, 900 243,700 254, 800 235, 500 244, 900 883,900 375,800 814,100 139,600 9 110,900 97,900 136, 100 175,700 242,700 262,500 236,000 244,200 884,500 874, 800 211, 7« 137,600 10 109, 100 98,000 136,800 176, 500 243, 000 276,500 233,600 243,700 885, 10G 878,900 BW,3TO 135,600 11 107, 400 96,200 137,300 177,300 242,700 280,200 231,800 244,900 885,400 871,300 806,800 133,100 12 105,700 98, 300 133, 000 178,100 242,700 278,900 230,600 246,300 866, 400 870, 000 804,400 131,000 13 104. 000 98, 400 138,500 178,700 245,000 276,500 230,200 249,000 884,800 866,800 801,900 128,700 ' 1514 102,500 98, 400 139,000 179,500 243, 200 274, 200 231,500 252, 000 884,300 866,600 199,600 186,500 101,100 98, 600 139,500 180,300 243,700 271,300 233, 400 254,600 284,300 865, 100 197,100 184,300 16 100,000 98,900 140,000 180, 900 244,200 267, 200 234,600 256,200 884,300 863,500 194,500 128,000 17 99,000 99,400 140,500 181,700 244,400 263,500 236,000 267,800 884,800 861,800 198,000 119,900 18 96,800 110,300 141,000 182,300 244, 400 262, 500 235,000 858,800 885,600 860,000 169,500 117,800 19 97,200 117,400 141,400 182,900 244,200 259, 200 235,300 260,200 265, 600 858,000 186,900 116,700 20 96,300 119,300 141,900 183, 700 244,800 255,000 234,800 262,500 885,400 866,000 184,500 113,600 21 96,300 120, 800 142, 400 202,500 244, 400 250,500 233,600 265, 800 285,100 254,800 181,700 111, 500 22 96,500 121,900 143,900 224,200 245,800 245,800 233, 100 269,600 884,300 858,800 179,300 109, 400 23 96,500 122,800 143,800 260,800 246,800 241,800 233,600 274,700 885,500 860,800 176,900 107,300 24 96,500 123,900 150,000 261, 600 247,300 233*900 233, 100 279, 100 888,400 246,800 174,500 105,300 25. 96,600 124,900 155,400 264,800 247,300 237,900 232,700 2S2, 100 281,800 846,300 178,800 103,300 26 96,600 125, 700 158, 100 86 1,200 247,800 837,700 230,800 883,700 861,900 244,200 169>700 JQ3., 800 27 96, 600 126, 700 160,000 268,800 346,600 ear, 700 229,800 284,000 280,800 848,300 187,4rfO |9,3na 28 96,600 187,800 161,800 354, 800 246,400 0JW».MO 836,000 284,300 280,500 339,600 186,$^ W,3Cp » 96,800 188,700 163,500 250;200 239,400 238,600 283,600 880,200 837,700 162, 6fK 96-gQO So 96,600 129, 700 165, 100 £64,800 . 240,100 837,800 281,600 880,000 336,500 isp.B" fliv8» 31 96,900 - 166,600 £68,800 - 238,900 - 880,600 - 833, 600 iWJto" - Monthly elevation and contents, water year October 1948 to September 1943 Change In contents Date Elevation Contents during month (feet) (acre- feet) (acre-feet) _ na QfV* Dec. 31...... 656.3 166,500 +36,800 Calendar year 1948...... - - -37,500 -7,400 Sept. 30...... 610.4 93,300 -64, 60S Water year 1948-43...... - - -38,900 Time baaliM Pacific wa:r time. To convert war time to standard time, uotract 1 Hour. 226 MERCED RIVER BASIN Merced River at Exchequer, Calif. Location.- Long distance water-stage transmitter, lat. 37°35', long. 120°17', on line between sees. 14 and 23, T. 4 S., R. 15 E., at Exchequer, half a mile downstream from Lake McClure, 0.7 mile downstream from Cotton Creek, and 5 miles northeast of Merced Falls; recording receiver at power plant half a mile upstream. Alt'tude of gage, about 400 feet (from topographic map). Drainage area.- 1,035 square miles. Records avaiiaole.-avanaoie.- October 1922 to Septemberseptemoer 1943. November 1915 to October 1922 at site i mile upstream. Average discharge.- 27 years (1916-43), 1,256 second-feet; affected by storage In Lake McclUre since Apr. 20, 1926. Extremes.- Maximum discharge during year, 7,520 second-feet (regulated) June 2 (gage neignt, 9.32 feet); minimum, 8 second-feet (regulated) Jan, 18 or 19. 1915-43: Maximum discharge observed, about 22,000 second-feet Jan. 17,'1916 (gage height, 20.0 feet, site and datum then In use), from rating curve extended above 9,000 second-feet; minimum discharge, 5 second-feet (regulated) Jan. 5, 1935. Remarks.- Records excellent except those below 100 second-feet, which are fair. No large diversions above station. Flow regulated by Lake McClure (see p. 225). Rating, table, water year 1948-43 (gage height. In feet, and discharge. In second-feet) -0.8 9 0.8 146 S.O 1,080 5.5 2,8fiO -.1 13 1.1 21S 3.5 1,320 6.0 3,320 .1 31 1.5 334 4.0 1,650 7.0 4,420 .S 56 2.0 510 4.5 2,030 8.0 5,660 .5 88 2.5 740 5.0 2,430 8.9 6,900 Discharge, in second-feet, water year October 1948 to September 1943 Daj Oct. "Nov. Dec. Jan. Feb. Mar. Apr. May June Jily Aug. Sept. S3'. 1 46 20 4,620 1,990 3 ,000 5,000 4,480 1,610 1, 590 1,890 2 93 i 56 80 8,880 1,480 3 ,000 5,000 6,840 1,680 1, 590 1,870 3 92!. 41 80 1,990 1,490 2,990 5,000 5,570 1,680 1, 590 1,860 4 91.1 53 20 1,700 1,490 2,990 5,000 4,050 1,680 1, 690 1,240 5 91t5 66 80 1,490 8,960 S ,000 4,680 8,470 1,620 1, 590 1,820 6 916 47 30 1,490 4,980 3 ,000 4,580 1,800 1,640 1, 610 1,220 7 916 47 30 1,200 5,000 2 ,990 4,820 1.690 1,680 1, 560 1,880 8 916 47 20 2,680 5,000 2 ,990 5,000 1,780 1,720 1, 530 1,880 9 916 47 20 alO 2,400 5,000 3 ,000 5,000 8,860 1,730 1, 490 1,220 10 916 47 20 1,500 5,320 3 ,010 4,800 8,670 1,760 1> 460 1*220 11 916 47 40 1,500 6,050 3 ,010 4,190 2,830 1,760 1, 460 1,880 12 916 47 21 1,500 5,860 2 ,740 3,480 8,850 1,750 1, 440 1,210 13 916 47 30 1,820 5, ISO 2 ,330 2,700 8,660 1,730 1, 440 1,200 14 916 48 SO 1,800 5,010 2,810 8,180 2,480 1,780 1, 440 1,190 15 726 50 30 1,810 5,000 2 ,510 2,000 8,580 1,730 1» 460 1,180 16 638 50 31 1,210 4,980 3,130 1,990 8,360 i,no 1, 470 IV 170 17 564 50 31 (a20 1,810 5,000 3 ,710 1,990 2,490 1,680 1, 470 1,140 18 514 51 31 1,220 5,000 4 ,080 1,990 2,780 1,660 1, 460 1,180 19 51S 51 31 a20 1,20Q 5,000 4,030 8,010 8,880 1,640 1»460 Iyl30 20 518 48 31 17 1,200 4,960 4,860 8,010 8,840 1,600 1, 460 1,100 21 46 46 SI 17 1,190 5,000 4 ,630 8,000 2,660 1.660 1>440 uoeo 22 65 46 31 27 1,190 5,010 4 ,630 S,010 8,410 1,660 1, 480 1,080 23 39 46 31 64 1,480 4,430 4 ,730 2,430 2,100 1,060 1, 890 1,080 24 41 46 80 71 Ik 760 3,660 6,040 3,960 1,670 1,660 1* 360 1,080 25 48 48 Ifi 1,690 2,310 8,690 5,040 5,060 1,710 1,660 IIP 880 1,060 26 48 46 14 8,680 2,490 8,490 5.030 5,660 1,660 1,560 1, 860 1,040 27 42 33 IS 4,000 2,490 2,490 4,680 6>000 1,600 1,570 It 360 Iy040 28 64 19 13 3,990 2,480 2,490 4 ,760 6,070 1,640 1,600 1» 340 1,040 29 78 19 13 3,990 2,500 5,000 5,920 1,680 1,600 1, 880 1*040 SO S3 19 alO 4,530 _ 2,820 5,000 5,500 1,610 1,690 1,380 1,040 31 46 alO 5, ISO - 2,990 - 4,770 - 1,690 1, 300 * Seoond- Runoff in Month foot-days Maximum MiniKiB Mean acre-feet October ...... 16,901 936 39 646 33,520 November...... 1,348 56 19 44.7 8,660 December ...... 707 40 10 22.8 1,400 Calendar year 1942 ...... 653,683 6,160 a 1,791 1,297,000 January...... grr 766 6,180 10 OtfOQQA 65,070 IVOA February...... 50)010 4,620 1,190 1p f O<3 99,190 March 189,840 6,060 1,480 5 $79 844,600 April...... '...... -...... 110,290 5,040 £,'210 ' 3,676 ' 818,800 May...... ;...... lee, 730 6,070 1 990 3*95$ 843,400 June...... 78,910 6 ft&WJQAf\ 1,610 oISytKnS itXfk 156,500 July...... 60,890 1,760 1,660 1>64E 100,900 August . 46, 090 1,610 1 300 1,456 OT7f>4OUfVQ JVA September...... ,...... '...... 34,620 1,890 1,040 1,164. 68,670 Water year 1942-43 ...... 668,596 , 6,840 10 I,8l6 1,314,000 a Ho gaae-helKht record! discharge computed on basis of recorded range In »t»f»9 *»«ord of power. house operation* Tuae baa la: Pacific war tine. To convert war tine to standard time, subtract 1 h«ur. MERCED RIVER BASIN 227 Merced River near Livlngston, Calif. Location.- Water-stage recorder, lat. 37023'29M , long. 120°47'10", in SEi sec. 2C, T. 6 S., R. 11 E., 3i miles v»est of Llvlngston and 10 miles upstream from mouth. Altitude of gage, about 82 feet (from .topographic map). Drainage area.- 1^245 square miles. Records available.- March 1922 to September 1924, October 1925 to September 1943. Average discharge.- 18 years (1925-43), 790 second-feet. Extremes.- Maximum discharge during year, 7,630 second-feet Mar. 10 (gage height, 18.20 Teet); minimum, 111 second-feet Aug. 12. 1922-24, 1925-43: Maximum discharge, 11,100 second-feet Feb. 12, 1938 (gag-* height, 21.44 feet, present datum), from rating curve extended above 8,500 second-feet; minimum observed, 18 second-feet Aug. 30, 1924. Remarks.- Records fair. Practically entire flow Is diverted above station during- Irrlga- tlon season; some return flow also enters above. Flow regulated by Lake McClure (see p. 225). Cooperation.- Water-stage recorder graph furnished by Merced Irrigation District. Discharge, in second-feet, water year October 1942 to Septeaber 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 210 143 152 147 5,560 2,720 3,230 4,130 3,240 268 187 180 2 210 143 147 143 4,940 2,190 3,220 4,110 3,290 263 187 187 3 " 206 147 141 140 2,990 1,750 3,210 4,080 5,060 254 187 186 4 236 147 140 134 2,330 1,720 3,210 3,990 4,270 268 161 183 6 230 145 140 134 1,980 1,750 3,220 3,960 2,780 263 187 20^ 6 202 150 138 133 1,770 4,950 3,240 3,610 1,510 250 17? 204 7 183 143 141 131 1,600 6,390 3,210 3,440 928 224 206 206 8 174 150 141 129 1,630 5,680 3,200 3,710 699 226 18-5 178 9 17S 150 141 129 3,170 6,740 3,110 3,870 629 234 174 185 10 a 190 145 143 128 2,420 7,140 3,020 3,850 988 204 15? 208 11 a205 141 136 126 1,780 6,410 2,970 3,580 1,380 290 161 218 12 a220 138 131 124 1,720 6,460 2,930 3,050 1,610 287 12 "* 204 13 a235 136 131 124 1,560 6,210 2,620 2,400 1,620 276 12' 197 14 248 136 131 124 1,430 5,530 2,210 1,700 1,430 232 164 185 15 257 141 131 122 1,390 5,290 2,060 1,200 1,240 216 IS1) 168 18 244 145 129 122 1,370 5,240 2,320 988 1,150 224 21? 180 17 224 149 128 122 1,430 5,190 3,020 919 1,110 210 18** 187 18 236 156 128 121 1,360 5,530 3,540 847 1,210 232 20T 167 19 240 159 129 124 1,360 5,470 3,690 511 1,400 242 207 191 20 240 159 129 124 1,360 5,240 3,680 757 1,570 214 20? 19S 21 236 15S 129 131 1,350 5,180 3,700 733 1,530 193 214 199 22 257 152 129 147 1,360 5,170 3,780 733 1,340 185 211 189 23 234 150 134 285 1,440 5,160 '3,690 721 1,100 185 207 187 24 189 150 140 594 1,660 4,630 3,510 1,020 841 202 19T 172 25 158 149 150 473 2,000 3,920 4,020 2,450 676 193 17? 204 26 158 150 226 1,340 2,670 3,080 4,070 8,270 539 191 181 230 27 156 154 214 3,670 2,700 2,890 4,040 3,810 42S 180 161 824 28 164 158 176 4,070 2,740 2,850 3,810 4,130 368 168 1ST 218 29 160 156 161 4,140 _ 2,830 3,940 4,300 315 174 191 216 30 147 164 154 4,220 _ 2,830 4,130 4,270 303 168 220 222 31 145 - 150 5,360 - 3,130 3,990 - 165 191 - Seoond- F-rnoff is Month foot-days Maximum Minimum Mean a-» re-feet 206 12,600 December...... 4,490 226 128 145 8,910 Calendar year 1942 ...... 489,703 5,160 128 1,342 971,200 121 2,109 117,100 Maroh...... 139,270 7 1 140 1,720 4,493 276,200 3,327 198,000 721 2,723 167,400 5,665 220 183 11,240 September...... 5,843 230 167 195 11,580 Rater year 1942-43 ...... 487, 769 7,140 121 1,336 967,400 a Ho gage-height record) discharge computed on basis of recorded range In stage. Time baalat Pacific war time. To convert war time to standard time, subtract 1 hour. 228 MERCED RIVER BASIN Tenaya Creek near Yosemlte, Calif. Location.- Water-stage recorder, lat. 37°44'33", long. 119°33'25", In Y-jsemlte National FancTiat bridge 0.7 mile upstream from mouth and 1.9 miles east of Y">semlte Lodge, Marlposa County. Altitude of gage, about 4,000 feet (fnom topographic map). Drainage area.- 47 square miles. Records available.- July 1904 to June 1909, January 1912 to September 1943. Average discharge.- 30 years (1913-43), 105 second- feet. Extremes.- Maximum discharge during year, 1,900 second-feet June 1 (eaK^ helKht. 5.90 feet): minimum, 1.2 second-fest Nov. 1-4. 1904-9. 1912-43: Maximum discharge, 5,550 second-feet Dec. 11, 1937 (gage height, 10.0 feet), from rating curve extended above 2,000 second-feet on basis of velocity- area studies; minimum, 0.6 second-foot Dec. 18-22, 1929, Dec. 2, 6-15, 1940. Remarks .- Records fair. No diversion. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. NOT. Deo. Jan. Feb. Mar. Apr. May June Jily Aug. Sept. 1 1.6 1.2 24 40 46 71 144 691 1,320 114 16 3.0 2 1.6 1.2 26 38 43 62 185 609 721 107 15 3.0 3 1.6 1.2 36 33 41 60 197 577 466 105 14 3.0 4 1.6 1.2 32 30 40 60 203 52S 342 102 14 2.8 5 1.5 1.3 30 29 39 68 197 521 278 98 13 2.6 6 1.5 1.4 26 26 39 71 171 694 294 97 12 2,6 7 1.5 1.4 . 24 26 42 66 189 609 346 88 IS 2.6 8 1.5 1.4 23 24 40 32 216 563 3S1 80 12 2.6 9 1.5 1.4 22 23 37 136 165 500 374 73 11 2.2 10 1.5 1.4 21 23 39 166 142 552 371 67 10 2.0 11 1.6 1.4 20 23 43 123 132 . 53S 378 63 10 a2.0 12 1.7 1.4 19 22 46 108 142 493 329 57 9 al.9 13 1.7 1.4 IS 23 49 103 187 469 294 61 9 al.9 14 1.6 1.4 IS 24 52 108 268 412 287 60 8 al.6 15 1.6 2.1 18 26 55 96 272 354 294 46 S al.S 16 1.6 2.4 19 26 68 86 284 306 310 42 7.6 al.S 17 1.6 6.5 19 24 57 36 303 290 329 39 7 al.7 18 1.6 231 16 20 55 94 339 303 336 36 6.6 al.7 19 1.5 90 18 20 55 86 347 329 319 32 6 al.7 20 1.6 44 17 23 62 80 311 a370 294 30 6 1.6 21 1.6 34 16 129 66 82 329 a430 £58 29 6.5 al.6 22 1.5 35 IS 146 68 78 385 a500 202 27 5.5 al.6 23 1.4 38 68 161 64 75 419 aSSO 177 24 5 al.S 24 1.4 40 161 100 64 82 419 a790 153 23 6 1.6 25 1.4 37 86 82 63 101 396 846 140 28 4.6 1.6 26 1.4 23 62 71 73 123 324 806 132 21 4.0 al.7 27 1.3 35 55 64 90 140 331 801 124 20 3.8 81.7 28 1.3 34 54 65 83 163 746 763 126 18 3.6 «1.7 29 1.3 23 54 53 177 507 653 124 18 3.6 al.7 30 1.3 26 46 53 - 144 466 S66 120 17 3.0 al.7 31 1.3 *" 41 49 - 129 721 - 16 3.2 - Seoond- Runoff in Month fcot-days Maxima Minimum Mean acre-feet Ootober...... 46.5 1.7 1.3 1.50 92 November...... 789.7 231 a. 2 24.5 1,460 December...... 1,103 161 16 55.7 2, BOO Calendar year 1942 ...... 46,386 770 1.2 127 92,060 January...... 1,476 isi 20 47.e 8,930 February ...... 1,514 90 37 S4.1 5,000 March...... 3,106 177 60 100 0,160 April...... S,700 746 132 890 17,260 Maymag , ...... 16,984 846 890 546 38,690 June ...... 9,616 1,320 180OA 320 19,070 July...... 1,611 114 16 52.0 3,800 August...... 262.8 16 '3.0 8.16 501 September...... 60.6 3.0 1.8 2.P2 ISO Water year 1942-43 ...... 48,203.6 1,320 1.2 184 89,670 a Ho gage-height record; discharge computed on basis of records for station* on Rere*4 SI* Yosesiite Valley. - ^ > Time basisf Pacific war tine. To convert war time to standard time, subtract 1 hour. ORESTIMBA CREEK BASIN 229 Qrestlmba Creek near Newman, Calif. Location.- Water-stage recorder, lat. 37°19'09", long. 121°07'14", in NWi sec. 20, T. v s., K. 8 E., at highway bridge, 3 miles downstream from Oso Creek and 5 railes west of Newman. Datum of gage is 191.86 feet above mean sea level, unadjusted. Drainage area.- 129 square miles. Kecoras ayaiiaole.- January 1932 to September 1943. Average aiscHarggT- 11 years, 23.2 second-feet. fcxcrefcs.-'3.- mximumrfeuamum discharge during year, 4,9004 " second-feet Jan. 21 (gage height, 5.95 reetj, from rating curve extended above 1,200 second-feet on basis of slope-area computations and logarithmic plotting; no flow during several months. 1932-43: Ifexlmum. discharge, that of Jan. 21, 1943; no flow during several months in each year, Remarks.- Records fair. No large diversions. Rating table, water-year 1948-43 (gage height, In feet, and discharge, In leeond-feet) (Shifting-control method used Apr. S to Hay 11) 0,6 0 1.0 1.4 60 8.0 210 2.S 640 .7 1,0 1.1 i.e 68 2.2 295 3.0 SCO ,e s.o 1.8 1.6 90 2.4 395 3.8 970 .9 .6 1.3 1.8 143 8.6 610 3.4 1,160 Discharge, In second-feet, watar year October 1848 to September 1943 Day Dot. Nov. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 0 150 40 26 13 0.8 2 0 SO 32 25 11 .8 3 0 ' 50 88 23 9 .8 4 0 30 42 S3 8 - .8 5 0 80 39 28 S<5 .8 6 0 15 S7 83 5 *.7,7 7 0 15 36 21 4.0 8 0 50 136 18 3.0 .7 9 0 30 619 18 8.6 .7 10 0 SO 340 18 2.0 .7 11 0 15 200 17 1.8 .6 12 0 13 136 16 1.7 ,6 13 0 12 100 IB 1.5 .6 14 0 IS S3 14 1.5 .6 16 0 is 66 13 1.5 .6 16 0 is 57 18 1,4 .5 17 0 13 187 IS 1.4 .5 18 0 13 863 11 1.4 ,5 19 0 IS 12» 10 1.3 .4 20 0 IS 95 9.5 1.3 .4 21 1,010 13 81 8 1.3 .3 22 1,050 38 70 8 1.3 .8 23 450 30 59 8 1.8 .1 24 800 25 50 8 1.8 .1 25 60 84 46 8 1.8 0 26 4C 54 40 8 1.1 0 27 60 86 '3337 9 1.1 0 28 40 51 16 1.0 0 29 100 .. 38 80 1,0 0 30 800 . 33 16 .9 0 31 300 " 28 " .9 0 Seoond- Runoff in Month foct-days Maximum Minimum Mean ao re-feet October 0 0 0 0 0 November...... 0 0 0 0 0 December...... 0 0 0 0 0 Calendar vear 1942 . 6,931.5 677 0 19.0 13,760 Janu ary...... 4,100 1,050 0 138 6,130 Febr uary 893 150 IS 31,9 1,770 Haro i...... 3,102 619 88 100 6,160 Aprl 1...... 455.5 86 8 15.8 903 llav 91.1 13 .£ E.94 181 Juna. . 13.5 .8 0 .45 87 July...... 0 0 0 0 0 Augu St...... 0 0 0 0 0 September...... 0 0 0 0 0 Water year 1948-43 ...... S, 655.1 1,050 0 23.7 17,160 Peak dlaoharCT.- Jan. 81 (7 p.m.) 4,900 see.-ft.} Kar. 9 (10 a.m.) 744 seo.-rt.t Har. 17 (18 J>.».i 465 seo .-ft'. Bete.- tie gage-height record Jan. 28 to Feb. 15} discharge computed on basis cf records for Tres Plnoi creek near Tres plnos and Ofconohllla River at BuehariBn Dam slt^a. Discharge Interpolated 230 TUOLUMNE RIVQl BASIN Ketch Hetchy Reservoir at Ketch Hetchy, Calif. Location.- Water-stage recorder, lat. 37°57', long. HQ^1?', in sec. 16, T. 1 N., R. 20 E., at O'Shaughnessy Dam on Tuolumne River at Ketch Hetchy in Yos-«nite National Pajrk, li miles downstream from Falls Creek. Datum of gage is at mean sea level (levels by city of San Francisco). Drainage area.- 460 square miles. Records available.- May 1923 to September 1943 (1923-30, gage heights only). Extremes.- Maximum contents during year, 354,100 acre-feet June 1 (elevation, 3,802.8 feet); minimum, 168,500 acre-feet Mar. 4 (elevation, 3,695.6 feet). 1923-43: Maximum contents, that of June 1, 1943: no contents Jan. 5 to Mar. 9, 1929, Jan. 5-18, Jan. 21 to Feb. 13, 1930,1 Jan. 22 to «ar. 18, 1971. Remarks.- Reservoir is formed by concrete gravity-type dam, complete-} to crest elevation 3,726.5 feet in 1923 and raised to 3,812.0 feet in 1937: storage began Apr. 6, 1923. Total usable capacity, 340,400 acre-feet between elevations, 3,512.0 feet (somewhat above bottom outlet) and 3,795.8 feet (spillway crest elevation) above mean sea level. Water flows down Tuolumne River 15 miles to Early Intake, where p-wrt is diverted through Ketch Hetchy aqueduct to Moccasin Creek power plant. At Moccasin Creek diver sion dam, water re-enters Ketch Hetchy aqueduct and flows into Cr^tal Springs Reser voir, which supplies city of San Francisco. Surplus water is spilled into Don Pedro Reservoir at Red Mountain Bar. Ketch Hetchy Reservoir is main storage unit of Hetch Hetchy water-supply system for San Francisco. Records show contents at midnight, all of which is available for release. Contents, In acre-fast, iwter year October 1942 to September 1943 °""1 Dot. Iknr. DM. Jan. Feb. Mar. tpr. Hay June July Aug. Sept. 1 272,300 229,500 208,4* 189,100 181,100 109,600 185,200 277,300 354,100 r*5,700 541,600 SOS, 5CC 2 270.9OO 228,200 207,600 188,200 180,500 168,900 186,400 288,100 349,600 !*5,300 341,200 307,200 3 269,400 226,800 207,100 187,600 179,600 168,600 187,900 291,500 347.200 ; 05,500 540,600 305,900 4 268,000 225,500 206,300 186,700 179,100 168,600 189,400 297,700 346,100 ! 45, TOO 339,900 304,800 5 266,600 224,800 205,200 186,800 178,300 168,600 191,100 303,500 345,300 145,900 339,100 303,300 6 265,400 222,900 204,400 184,900 177,700 168,900 192,100 310,800 345,300 !-*5,900 338,100 302,000 7 264,000 221,400 203,300 184,000 177,300 169,100 193,400 319,000 346,300 r*5,700 537,400 300,900 8 262,600 220,100 202,400 183,100 176,800 170,000 194,900 325,500 347,000 r*6,500 336,400 299,600 9 261,800 21S,6OO 201,300 182,000 176,400 178,800 195,900 330,400 347,400 rASreoo 935,400 898,300 10 259,800 217,300 200,300 181,100 175,600 175,600 196,400 336,200 347,600 r*5,ioo £34,500 296,800 11 253,400 216,500 199,200 180,200 175,300 176,800 196,700 342,800 547,600 ! 44, 800 533,500 295,700 12 257,100 215,800 198,100 179,300 174,700 177,500 197,000 345,300 344,000 r *4, »0o 53«,600 294,200 13 E55,TOO 213,700 197, 200 178,300 174,500 177,800 198,300 346,900 546,100 r*4,TOO 529,800 £se,eoo 14 254,400 811,500 196,200 177,300 174,000 178,600 200,000 346,800 346,100 t 44,700 530,400 291,300 15 253,000 210,200 195,300 176,400 178,800 178,800 803,200 346,300 346,500 r*4,6oo see, 300 290,000 IS 251,600 209,000 194,200 176,500 173,500 179,000 808,800 346,100 347,000 ^44^800 588,300 288,500 17 250,400 209,700 193,000 174,400 173,400 179,100 208,900 344,790 348,000 r«4,ioo 587,400 287,300 18 £48,800 215,800 192,100 173,500 175,100 179,400 212,700 344,300 348,400 r*3,900 926,200 285,000 19 247,400 21«,800 191,000 172,500 172,900 179,400 217,100 344,700 346,400 r*3,700 525,100 234,500 20 246,200 ei6,500 189,700 171,900 172,600 179,300 220,400 345,700 347,600 743,500 524,000 883,100 21 244,900 215,700 188,800 177,600 17S,500 179,100 224,200 346,600 347,200 f A3, 400 322,600 281,800 22 243,500 215,000 187,900 180,300 172,500 179,000 228,800 347,600 346,100 !-43,400 321,500 280,500 23 242,000 214,000 189,100 182,900 172,200 178,800 234,500 349,200 345,500 r AS; 200 320,200 279,300 24 240,600 213,400 191,600 183,400 171,700 178,600 240,300 350,600 345,300 !T42,BOO 918,600 277,800 25 239,200 212,700 192,100 183,400 171,400 178,600 245,500 350,900 345., 100 roe, 800 517,706 276,600 26 237,900 211,900 191,900 183,400 171,000 179,100 249,200 350,600 345,100 ! 42, 400 316,400 275,100 27 236,400 211,500 191,500 183,100 170,600 180,000 253,000 360,900 348.100 ! 02, 800 515,100 273,900 28 235,000 210,800 191,100 182,600 170,100 181,800 262,600 380,600 348,600 r«s,ooo 313), 800 272,566 29 255,500 210,000 190,800 182,300 188,800 267,100 849,800 345,700 ? AS, 000 328,400 871,000 30 232,200 200,200 190,400 181,800 _ 183,700 270,700 349,200 346,700 r *i, BOO 311,300 269,600 » 250,800 - 1*8,700 181,500 184,100 - 350,800 - ' r*i,eoo 508,300 - Iftmtldqr ejjmttta anft contented water y«ay Oo«oM*> 1S42 to aeytrt*** 1943 Change tr content* Slevattton Qonferat* &UPlOF BOtlCtl Pa'te («et| (aere-fwt) («cr*-«e*t} 3,760.0 '273,700 3,735.2 830,800 42,900 3,722.0 209,200 -21,600 Dec. 31...... 3,706.7 189,700 -19,500 . - -29,700 3,704.3 181,500 -8,200 3,696.7 170,100 -11,400 3,706.0 184,100 +14,000 3,758.3 270,700 4-86,600 3,800.8 350,200 > 79, 500 3,796.6 345,700 -4,500 3,796.5 341,800 -3,900 3,778.7 309,800 -32,000 Sept.30...... 3.767.7 239.600 -40.800 - - i -4,100 line baglat Pacific war woe. To convert war tin* to standard tine, subtract 1 hour. TUOLUMNE RIVER BASIN 831 Tuolumne River near Hetch Hetchy, Calif. Location.- Water-stage recorder, lat. 37°56', long. 119°48', in 3E$ sec. 17, T. 1 N., R. ao E., in Yosemlte National Park, 1 mile downstream from O'Shaughnessy Can at Hetch Hetchy and 2.5 miles downstream from Falls Creek. Altitude of gage, about 3,450 feet (from topographic map). Drainage area.- 462 square miles. Records______available.- December 1914_to September 1943. Average1 aisChargeT- 28 years (1915-43), second-feet. Extremes.- Maximum discharge during year, 12,900 second-feet June 1 (gage height, 13.90 reet}, from rating curve extended above 10,000 second-feet; minimum, 622 second-feet (regulated) Aug. 2. 1915-43: Maximum discharge, that of June 1, 1943, reservoir full and epilling; minimum, 1.2 second-feet (regulated) Jan. 18, 1931. Remarks.- Records excellent. No diversion. Flow regulated by Hetch Hetchy Reservoir Isee preceding page). Rating table, water year 1942-43 (gage heignt, in feet, and discharge, In second-feet) 5.8 670 9,0 2,440 6,O 730 10 3,570 6,5 S95 11 5,290 7.0 1,090 12 7,570 7,5 1,330 13.3 11,100 8,0 1,640 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aup. Sept. 1 739 730 733 727 733 694 745 814 11 ,000 2,670 664 760 2 736 727 730 727 730 694 74S 828 9,800 2,480 754 767 3 736 727 730 724 730 691 751 839 5,030 8,430 7<5 757 4 748 724 727 781 727 691 754 790 3,320 8,620 7 12 757 5 757 721 727 71S 724 697 757 769 2,590 2,690 7 IB 754 6 754 718 727 718 721 706 760 778 2,330 8,860 718 754 T 751 742 724 715 7S1 700 763 787 2,700 2,730 7 ^8 754 8 751 757 721 712 721 709 766 797 3,570 8,510 7,18 74S 9 748 757 718 709 718 736 769 S04 4,190 2,400 748 745 10 745 754 715 706 718 748 772 811 4,460 2,230 7 '15 757 11 742 748'751 712 703 715 736 772 879 4,780 2,180 745 760 12 739 712 700 715 730 775 1,740 3,900 8,030 745 760 13 736 745 700 ** 697 71S 7E7 775 8,740 3,230 1,930 745 757 14 736 74S 706 694 71S 733 7S1 2,830 3,100 1,880 770 754 15 733 739 703 691 709 730 787 2,560 3,280 1,850 745 754 16 733 739 700 etfs 709 730 797 2,220 3,770 1 ,'690 745 751 17 730 739 697 6B5 709 733 BOO 1,990 4,490 1,500 748 751 18 7E7 754 694 68S 706 733 811 1,770 5,190 1,360 742 748 19 784 754 661 691 70S 730 888 1,860 5,370 1,860 739 745 20 7S4 751 715 706 703 730 838 2,300 4,880 1,140 739 748 21 , 721 74B 727 757 703 727 848 3,070 4,870 1,040 751 739 22 739 748 7S7 745 703 7S7 853 4,000 3,290 1,010 760 739 23 751 745 733 766 700 727 867 5,330 8,710 1.06O 757 736 24 748 74S 739 748 700 7S7 874 7,050 2,400 990 757 736 25 745 732 74S 745 700 7S7 888 8,170 2,210 1,010 754 7B3 26 742 739 736 74S 700 7S7 850 8,170 8,190 958 754 730 27 74E 739 736 745 700 7S7 7B1 8,140 2,190 881 754 745 za 739 739 733 739 697 733 790 8,350 8,400 836 751 751 29 736 739 733 739 _ 739 800 7,580 2,670 . 790 751 748 30 736 736 730 74S _ 742 808 6,170 8,680 754 757 745 31 733 730 739 - 742 - 6,040 " 718 763 " Second- Runoff in Month foot-days Maximum Minimum Mean acre-feet October ...... SS,9S1 757 721 739 45,460- November...... 23 ^£36 757 7 IS 741 44 ,100 December...... £8,357 742 691 781 44,340 Calendar year 194E ...... 513,736 7,930 685 1,407 1,019,000 January ...... 22,381 766 688 720 44,270 February ...... 19,939 733 697 712 39,550 llaroh...... SS 4 S3 "748 691 723 44,480 April...... S3 j88"7 888 745 796 47,380 Bay...... 100,916 8,350 769 3,855 200,800 June ...... 117 ,330 11,000 8,190 3,911 232,700 July...... 52,487 2,860 718 1,691 104,000 August ...... 23 jl56 770 664 747 45,930 September ...... 22,467 760 730 749 44.J60 Water year 194S-43 ...... 478,380 11,000 664 1,294 937,000 Time basis! Pacific war time. To convert war time to standard time, subtract 1 hour. 332 TUOLUME RIVER BASIN Don Pedro Reservoir near La Grange, Calif. Location.- Water-stage recorder, lat. 37°42'48", long. 120°24'14", In SWi sec. 35, T. 2 S., R. 14 E., at Don Pedro Dam on Tuolumne River, 1, mile downstream from Rogers Creek and 5.5 miles upstream from La Grange. Datum of gage Is at mean sea level (levels by Turlock irrigation District). Drainage area.- 1,539 square miles. Records available.- October 1924 to September 1943 (1924-30, gage heights only). Extremes.- Itolmum contents during year, 291,200 acre-feet July 6 (elevation, 605.8 feet); minimum, 59,100 acre-feet Dec. 23 (elevation, 508.0 feet). 1924-43: Maximum contents, 292,100 acre-feet June 13, 1937 (elevation, 606.1 feet); minimum, 29,200 acre-feet Sept. 1-3, 5, 1934; minimum elevation, 475.0 feet Sept. 1, 2, 1934. Remarks.- Reservoir Is formed by concrete gravity-type dam, completed about Jan. 1, 1923; storage began Nov. 14, 1922. Total usable capacity, 260,000 acre-feet between eleva tions 476 feet (mutually agreed-upon minimum) and 605.55 feet (top of drum-type spill way gates) above mean sea level. Water passes through power plart at dam and down Tuolumne River to La Grange Dam, 4 miles downstream, where It Is diverted Into Turlock and Modesto Canals for irrigation. This reservoir is operated jointly by Turlock and Modesto Irrigation Districts. Records show total contents at midnight of which 30,000 acre-feet (mutually agreed-upon minimum) Is not available for release. Cooperation.- Water-stage recorder graph furnished by Turlock and Modesto Irrigation Districts. Contents, in aore-feet, water year October 1942 to September 1943 Day Oct. HOT. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 129,300 75,200 98,300 83,100 266,700 265,500 266,700 267,900 276,000 279,500 269,500 190,800 2 127,000 74,800 96,600 64.30O 266,100 265,500 266,700 268,200 273, 8OO 282, OOO 267,300 188,100 3 124,300 74,800 95,900 85.4OO 265,500 265,500 267,000 267, 6OO 270,100 283,900 265,100 185,400 4 121 , 400 74,800 95,000 86,200 265,100 265,800 266,700 267,600 267,600 286,700 262,700 183,300 5 11S,6OO 74,700 93,400 86,7OO 265,100 269.80O 267,300 267,300 266,100 289,600 26O,2OO 179,800 6 116,000 74,600 92.1OO 87,2OO 264,800 269,800 266,700 267,300 265,500 291,200 258,100 176,700 7 113,600 74.30O 90,200 87,500 265,100 267,900 266,400 267,300 265,800 290,200 256,000 174,300 8 110,800 74,100 88,800 87,700 266 , 4OO 269,500 267,000 267,300 266,700 289,900 253,200 171,800 9 1O8,10O 73,900 87,200 87,800 265,800 273,500 266,700 266,400 267, 6OO 289,900 250,800 169, 2OO 10 105,300 73,900 85.4OO 88,000 265, 50O 274,800 266,100 266,100 267,900 289,900 248,700 166,700 11 102,200 74,000 83,600 88,OOO 265,500 271,300 265,800 266,400 268,600 288,900 246,300 164,400 12 99, BOO 74,000 81,90O 88,200 265,500 269,200 265,800 266,700 269,200 288,000 243,900 161,400 13 97,4OO 73,900 79,800 88,200 265,500 268,200 266,100 267,600 268,600 288,000 241,900 158,900 14 95,200 73,800 77,900 88,200 265,100 268,900 266,700 267,900 267,900 288,600 239,200 156, 2OO IS 92,600 73,500 76,000 88,300 265,100 268,200 266,700 267,300 267,900 289,500 236, 50O 153,800 16 91,500 73,500 73,900 88,3OO 265,100 267,300 267,000 266,700 268, 20O 289,900 234,200 15 1,1OO 17 90,900 74,OOO 71,800 88,300 265,100 268, 2OO 267, 3OO 266,100 270,1OO 289,900 231,800 148,200 18 90,000 92,700 69,600 88,300 865,100 268,200 267,300 266,100 272,300 289,900 229,200 145,500 19 89,300 101,800 67,300 88,200 265,100 267,300 267,300 266,100 276, OOO 289,300 226,600 142,600. 20 88,800 104,500 64,700 88,300 265,100 266,700 267,000 266,700 277, 9OO 288,300 224,000 139,800 21 88,300 105,700 62,100 121,200 366,100 266,700 267,000 267,800 278,200 287,000 221,400 137,000 22 87,800 1O6.700 60,000 160.700 266,400 266,700 867,000 268,900 277,900 285,800 218,500 134,200 23 87,400 106,100 59,100 194,100 266,100 266,400 267,600 270,100 276,000 284,500 215,600 131,600 24 86,700 105,300 70,600 209,400 266,100 266,400 267,300 271,7*10 273,800 283,600 213,100 128,600 25 86,100 104,500 78,100 217,900 266,700 866,400 267,600 278,600 278,200 282,000 210,800 125,900 26 83,9OO 103,600 80,700 228,700 266,100 266,400 266,700 272,500 273,200 280,700 208,000 125,000 2T 81,700 102,400 81,600 232,800 266,100 266,700 266,400 272,300 272,900 278,900 206,400 120,100 28 79.6OO 102,200 81,900 238, 3OO 265,800 266,700 271,700 272,000 272,900 277, 3OO 202,600 117,500 29 77,100 100,900 82,300 243,600 _ ' 267,600 269,200 271,300 274,200 275,400 199,300 114,900 30 76, 4OO 99.800 82,300 260,200 267,000 267,300 270,700 276,300 273,500 196,500 112,400 31 75,800 - 81,900 266,700 - 266,700 - 270,400 - 271,700 193.5OO - Monthly elevation and contents, water year October 1942 to September 1943 Change in contents Date Elevation Conte'nts durirss month , (feet) (acre -feet) (acre -feet) 522.5 81,900 -IT, 900 Calendar year 1942.... - - -4fr600 597 V 270 400 539.5 118,400 -81 ,100 Water year 1942-43.... - ' - -16,500 Tlaa Imsls? Pacific war time. To convert war time to standard tins, sub- TUOLUMNE RIVER BASIN 233 Tuolumne River above La Grange Dam, near La Grange,. Calif. Location.- Water-stage recorder, lat. 37°42'35", long. 120°24'45", in NE| se?. 3, T. a s., H. 14 E., half a mile downstream from Don Pedro Dam, 3i miles upstr3am from La Grange Dam, and 5 miles upstream from La Grange. Altitude of gage, about 330 feet (from topographic map). Drainage area.- 1,540 square miles. Records available .-March 1915 to September 1943. August 1895 to September 1917 at La arange uam, as miles downstream; records equivalent if flow of Yosemit^ Power Co. Canal (abandoned in 1926)and Modesto and Turlock Canals is added to flow at La Grange Dam. Average discharge.- 48 years (1895-1943), 2,604 second-feet, using 1895-1916 records or comoinea riow of river and canals, and including Hetch Hetchy diversion to San Francisco. Extremes.- Maximum discharge during year, 19.700 second-feet June 2 (gage Ije'ght, 21.46 reetj; minimum, 29 second-feet (regulated) Nov. 9. 1895-1943: Maximum discharge, 60,300 second-feet Jan. 31, 1911 (gage height, 16.45 feet at site at La Grange Dam from graph constructed on basis of frequent gage readings), from rating curve extended above 18,000 second-feet; maximum gage height at present site, 29.6 feet Mar. 25, 1938; minimum discharge,0.5 second-foot (regu lated) many days in October and November and November 1931. Remarks.- Records excellent. A small amount of water is diverted above station for irrigation. Diversion through Hetch Hetchy aqueduct to San Francisco begf-n Oct. 19, 1934; for present year It amounted to an average of 34 second-feet. Flow regulated by Don Pedro Reservoir (see preceding page), Hetch Hetchy Reservoir (see p. 230), and Lake Eleanor (see p.237). Rating tables, inter year 1948-43 (gage height. In feet, and discharge, la seeond-fset) 00 tr 1 tfi June S fane 3 to Sept. 30 6.7 800 8,5 £,O.OO 14.0 8,100 S.4 1,640 12.0 5 ,300 6.9 910 9piO 5,440 16.0 9,600 8.6 2,000 13.0 6 ,600 7.8 1,090 10.0 3,340 16.0 11,100 9.0 2,330 15.0 9 ,680 7.5 1,280 11.0 4,3.40 0,7,0 IS ,80$ 9*6 2,786 17.0 12 ,600 7.8 1,480 iSvO 5,460 Sfr.Q 1«,200 10.0 3,200 18,0 14 ,2OO 8.1 1,«90 13.0 6,720 20.0 17,400 11.0 4,160 20.O 17 ,400 , Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dee. Jan. Feb. Mar. Apr. May June July Aui*. Sept. 1 2,130 985 1,970 1,030 4,260 3,250 4,300 6,630 12,800 2,100 1,950 2,370 2 2,130 1,140 2,000 1,090 3,790 3,040 4 ,400 6,120 17,300 2,110 1,9SO 2,390 3 2,180 1,OSO 1,930 970 3,300 2,940 4 ,620 6,88- 10,600 2,060 2, 190 2,100 4 2,160 1,070 2,020 1,160 2,950 3,140 4 ,560 6,780 7,050 1,910 2,190 2,160 5 2,200 1,060 2,020 1,140 2,740 4,470 4,870 6,320 6,070 1,920 2, 190 2,400 6 2,160 1,040 1,960 1,150 2,590 8,660 4,760 6,200 4,060 2,760 2, 180 2,420 7 2,140 1,020 2,050 1,130 2,400 6,240 4 ,290 5,340 4,000 4,180 2, 180 2,140 6 2,160 890 1,980 1,140 3,780 6,640 4 ,6SO 6,200 4,700 3,460 S,180 2,130 9 2,190 1,040 1,990 »1,100 3,640 9,260 4 ,650 4,640 6,770 3,080 2, 190 2,140 10 2,200 1,030 2,040 1,000 3,090 16,800 4,010 4,340 6,420 3,080 2,190 2,180 11 2,120 S98 2-.080 1,150 2,870 11,900 S ,450 4,310 6,390 3,060 2, 190 2,190 12 2,170 . 1,000 2,080 1,150 2,800 8,220 z ,410 4,480 6,060 3,060 2,210 2,190 13 2,140 1,010 2,030 1,120 2,760 6,670 3 ,610 5,120 6,360 2,480 2, 230 2,200 14 2,160 990 2,130 1,120 2,660 6,260 4 ,210 5,700 4,950 1,900 2,220 2,220 15 2,170 848 2,140 1,120 2,660 6,560 4,580 5,440 4,880 1,950 2,230 2,190 16 1,460 1,080 2,140 1,100 2,760 5,550 4,870 4,680 4,960 1,970 2, 240 2,220 17 1,230 1,040 2,200 1,000 2,700 6,200 4 ,990 4,270 6,320 1,960 2, 260 2,250 18 1,110 '930982 2,190 1,120 2,650 6,290 4 ,910 3,930 6,770 1,960 2,250 2,220 19 1,220 2,220 1,160 2,630 6,620 f ,130 3,870 6,640 1,940 2, 270 2,230 20 1,230 939 2,220 1,160 2,480 4,860 6,230 4,320 6,750 1,960 2,260 2,230 21 1,220 925 2,240 1,160 2,410 4,430 4,970 5,060 6,060 1,96O 2,300 2,200 22 1,170 802 2,230 980 3,130 4,680 4 ,910 6,230 5,400 1,950 2,270 2,210 23 1,200 1,660 2,260 972 4,060 4,480 E ,240 7,620 5,040 1,970 2, 270 2,160 24 1,190 1,760 2,280 800 3,590 4,170 E ,700 9,740 4,400 1,940 2,300 2,180 25 1,110 1,780 2,030 " 936 4,340 4,090 5,710 11,400 3.420 1,920 2,310 2,150 26 1,980 1,700 2,070 940 4,040 4,170 5,340 11,700 3,110 1,940 2,320 2,180 27 2,070 1,750 1,980 912 3,910 4,320 4 ,590 11,300 3,090 1,9SO 2,330 2,190 28 2,090 1,760 2,100 898 3,420 4,410 1 ,910 11,600 3,110 1,970 2,360 2,140 29 2,090 1,680 2,100 930 _ 4,910 E ,900 11 ,000 3,110 1,990 2,350 2,150 30 1,310 1,790 2,090 925 . 6,360 E ,990 9,480 2,660 1,990 2,360 2,180 31 1,170 - 2,120 2,660 ~ 4,720 " 9,306 - 1,980 2,360 ' - Seocnd- Runoff in Month foot-days Maximum Minimum Mean acre-feet October. .. j...... 65,240 2,200 1,110 3. V82 109,600 November...... 35,672 1,790 802 1 * 3.89 70,750 December...... 64,940 2,280 1,960 2,096 128 ,800 Calendar year 1942 ...... 1,200,106 14,100 S02 3,286 2,380,000 January...... 34 Ef 660 80C 1,106 67,920 February...... 68 » 3.00 4,340 2,400 3 ,146 174,700 March...... 179,210 15 > 800 £ 94C 6,781 365,500 April...... 148, 6SO 8 900 sUio 4 ,VODQRR 294 900 May...... 203 ,900 ll|700 3,870 6,677 404*400 June ...... 171,950 17,300 2,660 5,732 341,100 July...... 70,480 4,180 1 ,90C 2,274 139,800 August ...... 69,340 2,360 1 ,98C 2,237 137,500 September...... 66,300 2,420 2,100 2,210 131,500 Water year 1942-43 ...... 1,188,054 17,300 800 3,265 2 t S56,pOO .- Discharge for periods July 1-6, 9-14 is sum of flow in Turlook and Modesto Canals. Pacific war time. To convert war time to standard time, subtract 1 hour. 6D5906 O - 44 - 16 234 TUOLUMNE RIVER BASIN Tuolumne River at Tuolumne City, Calif. Location.- Water-stage recorder, lat. 37°36'15", long. 121°07'50;, in NW* sec. 7, T. 4 S., R. B HI., at highway bridge at west edge of Tuolumne City, 3i miles upstream from mouth. Zero of gage Is set to datum of Corps of Engineers, U. S. Anny. Records available.- October 1940 to September 1043 In reports of Geological Survey. 1930 to ISXJb (low-water periods only) and 1936-43 In reports of Division of water Resources, Department of Public Works, State of California. Extremes.- Maximum dally discharge during year, 16,510 second-feet Mar. 11; minimum dally, 490 second-feet July 15. 1941-43: Maximum dally discharge, that of Mar. 11, 1943; minimum dally, 300 second- feet Feb. 6, 1941. Cooperation.- Records collected and prepared In cooperation with city of San Francisco and Division 'of Water Resources, Department «>f Public Works, State of California. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 955 1,325 .S20 2,380 2,910 3,450 4,350 4,500 7,OSO 740 640 600 2 975 1,225 860 1,775 3,210 3,325 4,100 4,130 9,790 670 600 620 3 970 1,190 895 1,275 3,240 3,050 4,160 4,625 15,090 630 600 600 4 975 1,220 1,550 1,400 3,325 3,160 4,220 4,350 8,750 590 590 S 975 1,120 2,080 1,470 3,290 3,390 4,125 4,130 5,340 640 590 600 S 1,020 1,000 2,150 1,500 3,240 5,780 4,300 3,480 3,500 600 630 590 7 990 910 2,155 1,460 3,180 9,110 4,340 3,000 2,560 560 590 570 e 1,025 855 2,166 1,450 2,975 6,460 4,075 2,920 2,070 800 620 590 9 1,020 840 2,140 1,450 3,280 6,010 4,180 2,750 2,250 760 630 600 10 1,025 840 2,155 1,405 3,300 9,750 4,175 2,150 3,100 610 620 580 11 1,040 85C 2,185 1,305 3,190 16,510 3.S70 2,075 3,750 570 620 600 12 1,130 820 2,200 1,390 3,140 12,970 3,520 2,020 3,900 560 630 590 13 1,100 815 2,220 1,405 3,150 8,770 3,550 2,025 3,6SO 500 600 600 14 1,040 S15 2,20O 1,420 2,950 7,850 3,450 2,640 3,040 510 610 620 15 1,035 840 2,250 1,385 2,820 6,700 3,940 3,015 2,670 490 630 730 16 1,070 840 2,270 1,380 2,800 6,850 4,OSO 2,915 2,610 510 620 770 17 1,070 865 2,290 1,360 2,750 6,320 3,940 2,200 2,550 550 620 770 Ifi 1,025 S80 2,300 1,255 2,800 5,950 3,850 1,750 2,680 570 615 750 19 1,080 870 2,330 1,340 2,770 5,450 3,750 1,100 2,800 5BO 600 750 20 990 845 2,420 1,3SO 2,720 6,350 4,000 820 2,750 540 580 800 21 975 S45 2,440 1,425 2,650 5,550 3,800 1,116 2,800 590 610 780 22 1,005 840 2,470 1,620 2,675 5,150 3,850 1,760 ^,se i 680 680 780 23 975 835 2,480 2,640 3,210 5,390 2,740 8,260 2,eej ' 680 630 840 24 970 820 2,530 2,160 4,050 6,090 2,300 4.950 2,360 680 630 910 25 975 845 2,600 1,3.80 3,710 4,880 8,270 7,850 2,020 670 600 930 26 975 840 2,440 1,040 4,680 4,780 8,250 8,690 1,470 690 600 950 27 970 870 2,560 1,035 4,360 4,600 2,870 8,880 1,040 680 580 930 28 970 865 2,410 1,235 3,950 4,590 2,530 S,750 S30 670 570 940 S9 960 S40 2,430 1,680 _ 4,490 5,370 9,000 780 660 580 930 30 970 855 2,450 2,035 _ 4,640 6,480 8,690 780 680 590 940 31 1,100 - 2,410 2,610 - 4,750 - 7,430 - 660 600 - Second- Runoff in Month foot-days Maximum Minimum Mean ao re-feet 1,150 1,526 54,390 Decesber ...... 66,855 2,600 820 2,157 fL32,600 Calendar year 1942 ...... 881,982 12,000 520 . 2,416 1,749,000 2,640 90,325 4,680 2,650 3,226 179,200 March...... 190,986 16,510 8,050 6,161 378,800 1-16,385 6,480 2,830 3,878 230,700 May...... 186,290 9,000 820 4,074 260,500 107,680 15,090 780 8,589 213,600 July, ...... 19,320 1 800 490 623 38,320 18,865 640 570 609 37,420 September ...... 21,860 950 570 728 48,340 Water year 1942-43 ...... 865,325 16,510 490 2,371 1,716,000 Tims basis; Pacific trap tise. To convert war time to standard tine, subtract 1 hour. TUOLUMNE RIVER BASIN 235 Falls Creek near Hetch Hetchy, Calif. Location.- Water-stage recorder, lat. 37°58', long. 119846", In NEJ sec. 3, T. IN., R. ZQ E., In Yosemlts National Park, a quarter of a mile upstream from Wampana Palls,! mile upstream from mouth, and 2 miles northeast of Hetch Hetchy. Altitude of gage, about 5,600 feet (from topographic map). Drainage ^rea.- 45.2 square miles. KecoraS available.- November 1915 to September 1943. Average aiscnargeT- 27 years (1916-43), 141 second-feet. Extremes.- naximum discharge during year, 1,950 second-feet June 1 (gage height, 6.80 teet )7 from rating curve extended above 1,250 second-feet on basis of velocity-area studies; minimum, 0.1 second-foot Nov. 2, 3. 1915-43: Maximum discharge, 6,300 second-feet Dec. 11, 1937 (gage height, 8.90 feet), from rating curve extended above 1,250 second-feet on basis of velocity-area studies; no flow at times during several summers. Remarks.- Records good. No diversion. Rating table, water year, 1942-43 (gage height, In feet, and discharge, In second-feet) 1.5 0.1 2.4 4.2 307 1.6 .2 2.6 15 4.5 409 1.7 .4 2.8 24 4,8 521 1.8 .8 3.0 41 5.2 705 1.9 1.5 3.3 85 5.6 655 2.0 2.2 3.6 145 6.0 1,260 2.2 4.0 3.9 218 6.5 1,670 Discharge, in seccnd-feet, wster year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. ' 47 1 0.4 0,2 59 60 52 187 525 1,680 32O 43 8.8 2 .3 .1 62 53 56 54 232 695 1,130 267 38 2.7 3 .3 .1 94 43 51 55 264 562 541 864 sr. 2.6 4 .3 1.2 65 39 53 87 288 SOB 339 .^313 2f 2.4 5 .2 1.4 47 37 58 154 292 529 246 301 2T 2.3 6 .2 1.3 38 31 58 115 835 583 388 333 28 2.1 7 .2 1.3 37 29 62 87 289 665 441 307 80 2.1 8 .2 1.3 34 26 60 170 888 505 561 264 19 2,0 9 .2 1.4 31 25 64 423 218 483 635 868 18 2.0 10 .2 1,4 31 25 71 359 173 460 625 218 16 2,0 11 .7 1.4 SO 25 68 202 162 521 670 805 16 2.1 12 2,5 1.4 28 24 75 161 150 453 503 2OO 13 2.1 13 .9 1.4 28 24 80 152 802 405 483 187 11 2.1 14 .6 1.3 26 25 37 190 320 35» 427 190 11 8.0 15 .7 10 27 28 94 132 373 304 434 182 11 1,9 16 1.0 9 26 29 98 107 377 835 502 163 11 1.8 17 .9 see 26 S7 92 111 420 205 574 136 11 1.7 18 .9 1,230 24 28 90 117 453 19G 630 183 9.5 1.5 19 ,9 469 23 29 89 92 502 246 555 117 8 1.4 20 1.0 16S 88 28 96 83 479 359 565 101 7 1.2 21 .9 96 i 21 465 99 87 431 491 521 94 6.5 1.0 22 .9 80 27 392 99 ' 83 479 592 377 87 6 .8 23 .8 SO 340 296 73 85 583 754 310 88 5 .7 24 .7 85 597 150 70 101 540 970 273 76 4.8 .6 25 .7 76 240 103 71 127 601 1,040 - 249 71 4.2 .6 26 .6 58 130 90 64 163 433 962 258 70 3.9 .5 27 .6 106 103 87 64 197 370 920 267 65 3.7 .6 2R ,5 94 103 78 54 235 975 1,000 295 62 3.5 .4 29 .4 64 99 71 _ 258 533 859 333 56 3.3 .4 30 .4 53 75 70 _ 205 346 716 326 51 3.1 .3 31 .2 ~ 64 65 - 173 " 760 ~ 48 2.9 " Second- Runoff in Month fcct-days Maximum Minimum Mean ao re-feet December...... '2,B47 597 21 82.2 5,050 Calendar year 1942 ...... 69,626.0 1,230 .1 191 138,100 Crt ft March...... Atyz 1...... 11,230 975 150 374 88,270 Ma? July 0 £ September ...... 46,8 2.8 .3 1.56 93 Water year 1942-43 ...... 64,817,7 1,680 .1 178 128,600 Peak discharge.- Hov, 18 (1 p.».) 1,620 aeo.-ft.; Apr. 88 (7 a.».) 1,260 sec.-ft.j Jan* 1 (18m.] 1,950 see.-ft. Time basisi Pacific war time. To convert war time to standard time, subtract 1 hour. 236 TUOLUMNE RIVER BASIN Cherry Creek near Hetch Hetchy, Calif. Location.-- Water-stage recorder, lat. 38°00', long. 119°54', in SWi sec. 28, T 2 N KTT9E., 2$ miles northwest of Lake Eleanor Dam, 4 miles upstream from Eleanor creek, and 7s miles northwest of Hetch Hetchy. Altitude of gage, about 4.500 feet {from .topographic map). Drainage area.- Ill square miles. * Records available.- Apr! 1^1910 to September 1943. Average discharge.- 33 years, *369 second-feet. Extremes .- Maximum discharge during year, 6,380 second-feet Nov. 18 (gage height 11 9 reetj; minimum, 2.0 second-feet Sept. 19-26. * 1910-43: Maximum discharge, 18,100 second-feet Dec. 11, 1937 (gage height, 25.1 feet, from floodmarks), from rating curve extended above 4,000 second-feet on basis of velocity-area studies; no flow Sept. 6-12, 1910. Remarks.- Records good except those for periods of doubtful or no gage-height record, wnicn are fair. No diversion above station. Release from small reservoirs Increases normal summer flow. Discharge, in second-feet, water year October 1942 to September 1943 Day Oot. Nov. Dec. Jan. Feb. Mar. Apr. May June Jv-ly Aug. Sept. 1 3.0 3.2 166 .218 272 198 595 1,720 4,070 562 a43 3.0 2 3.0 3.2 969 198 259 210 776 1,750 1,900 442 39 3.0 3 ' 3.0 S,5 346 155 8236 251 646 1,550 1,OSO 47S 835 8.8 4 3,0 3S 190 144 8230 301 904 1,330 723 542 832 2.7 5 2.8 30 131 141 8230 432 935 1,320 538 498 2.7 6 2.8 15 103 119 8230 347 595 1,600 67S 558 26 2.6 7 2,8 10 103 114 8290 267 714 1,610 984 502 324 2.4 8 2.S 106 * 116 8360 529 S64 1,390 1,240 410 320 2.4 9 2.S 6.5 101 111 8320 1,830 507 1,080 1,320 370 818 2.4 10 2.8 6 9S 121 8280 1,230 406 1,340 1,250 314 816 2.4 11 31 5.5 103 119 8250 586 419 1,380 1,290 314 15 2.4 12 a37 5 92 111 8240 476 503 1,080 989 302 14 2.6 13 179 ' 4,8 94 S6 8240 446 833 1,010 779 282 12 2.4 14 4.6 96 103 8260 573 1,080 858 787 8260 11 2.2 15 9 49 92 114 8260 dS72 1,140 670 S90 8240 9.5 2.1 16 9.5 58 96 111 280 d314 1,140 486 1,060 a 820 8.5 2.1 17 7 1,360 90 S6 276 3347 1,220 466 1,150 aSOB 8 2.1 18 5,5 4,610 80 68 267 3364 1,270 546 1,260 186 7.5 2.1 19 4.5 879 76 67 272 3301 1,380 792 1,260 a!70 7 2.0 20 4.2 330 73 82 305 d280 1,220 994 1,080 8155 6 2.0 21 4.0 23S 61 3,000 347 dS30 1,180 1,280 976 8145 6 2,0 22 4.0 251 61 1,460 424 d330 1,360 4., 610 594 131 5.5 2.0 23 3.8 876- 1,000 1,170 267 d330 1,680 2,080 522 8115 5 2.0- 24 3,5 293 1,470 485 830 33S5 1,790 2,370 468 alOS 5 2.0 25 3.5 259 446 364 238 d446 1,570 2,290 442 892 4.8 2.0 26 3.5 174 297 343 218 547 1,060 2,070 458 884 v 4.5 2.1 27 3,5 355 276 322 214 635 1,160 2,070 478 a75 4.2 2.8 28 3.2 230 309 8285 202 780 3,590 2,000 530 868 4.0 2.8 ' 29 3.0 198 297 8265 912 1,260 l,780i 602 860 3,8 2.6 30 3.2 230 234 8350 600 1,110 1,550 574 854 3.5 2,4 31 3,2 SIS asio 476 2,320 a48 5.2 Second- Runoff in Month foot-days Haxioun Minimnn Mean acre-feat Ooto ber...... :...... 800,9 37 2.8 6,48 398 More 9,957,7 4,610 s.a 391 19,710 DeoeBb«r...... 7,204 1,470 61 255 14,470 Calendar year 1942 ...... 176,138,4 4,610 2 £ 483 349,400 Janu ary 10,738 3,000 67 346 21,300 Febr 7,506 424 202 868 14,890 Marc 14,826 1,230 198 478 29,400 1...... 33,057 3,550 406 1,102 66,570 # 44,272 2,370 466 1,488 87,810 June 29,995 4,070 442 1,000 59,490 > July 7,987 562 48 25S . 15,840 AugU 430.0 43 3.2 13.9 853 September...... 71,1 3,0 8.0 3.37 141 Bater year 1942-43 ...... 168,315.7 4.610 3.0 466 529.900 Peak discharge.- 1or. IS (8t3O'a,».) 6.380 seo.-ft.; Jan, 21 {7 p.».) 6,160 »e-».-ft,t Apr. 28 (4 a.m.) 6,800 a«c.-ffci^jnn* i (lo a.a.) 5,280 sec. -ft. * 5° 8«^-neJ^»tjrocwfdj discharge Interpolated or computed on ba«le of record- for nearby streams.I d Doubtful gage-heigrt record), discharge interpolated or computed oa bad la of recorded gag* hel#rt4 Mae basia! faeifie «*r tb», x« oenrert war tlm t« ataadwrt ** , mbtnwt 1 temr. "^ ^ [ v ' TUOLUMNE RIVER BASIN 237 Lake Eleanor near Hetch Hetchy, Calif. Location.- Water-stage recorder, lat. 37°58', long. 119°53', in NWi sec. 3, T. IN., R. 19 E., at dam on Eleanor Creek, 1.7 miles upstream from Kiguel Creek and 5* ffiles northwest of Hetch Hetchy. Datum of gage,is at mean sea level (levele by city of San Francisco). , . Drainage area.- 79 square miles. Records available.- October 1919 to September 1943 (1919-30, gage heights only). ximum contents during year, 27.100 acre-feet June 28, July 6-8, 12,. 13 , 4,661.0 feet); minimum, 7,130 acre-feet Nov. 16 (elevation, 4.637.7 feet). 1919-43: Maximum contents, 29,400 acre-feet Mar. 25, 1928 (elevation, 4,661.7 feet); no usable contents Nov. 28 to Dec. 20, 1921, Feb. 21 to Mar. 3, Nov. £1 to Dec. 10, 1929, Dec. 18-24, 1930. Remarks.- Reservoir is formed by multiple-arch dam completed in 1918; storage began June 23, 1918. Usable capacity, 26,100 acre-feet between elevations 4,620.9 feet (natural outlet of old lake) and 4,660.0 feet (top of 5-foot flashboards) abcve mean sea level. Water is released down Eleanor Creek for power development and dcmestic supply as part of Hetch Hetchy system of city of San Francisco. Records show avail able contents at midnight. Contents, In acre-feet, water year October 1942 to September 1943 Day Oot. Nov. Dec. Jan. Feb. liar. Apr. Hay Juno July Aug. Sept. 1 16,400 9,S20 23,100 23,800 23,900 23,900 24,400 24,900 25,600 26,900 26,400 19,300 2 16,200 9,530 23,200 23,800 23,90O 23,900 24,500 25,000 24,300 26,900 26,200 19,100 3 16,OOO 9,340 23,500 23,700 23,800 23,900 24,600 24,300 24,400 27,000 26,100 13,900 4 15,300 9,180 23,500 23,700 23,800 24,OOO 24,600 24,300 24,400 27,000 25,900 13,600 5 15,500 9,020 23,5OO 23,600 23,8OO 24,200 24,600 24,800 24,600 27,000 25,700 13,300 6 15,300 8,790 23,600 23,5OO 23,8OO 24,100 24,400 24,700 24,300 27,100 25,500 13,100 7 15,100 8,640 23,600 23,5OO 23,900 24,000 24,400 24,700 25,000 27,100 25,300 17,900 8 14,300 3,500 23,600 23,500 23,900 24,400 24,500 24,70O 25,300 27,100 25,100 17,600 9 14^700 8,360 23,500 23,500 23,800 25,3OO 24,300 24,500 25,500 27,000 24,900 17,300 10 14,400 8-, 160 23,5OO 23,400 23,300 25,100 24,200 24,500 25,800 27,000 24,300 17,100 11 14,200 7,830 23,500 23,400 23,900 24,600 24,100 24,500 26,100 27,000 24,600 16,900 12 14,100 7,310 23,500 23,400 23,900 24,500 24,200 24,400 26,300 27,100 24,300 16,600 13 13,900 7,610 23,5OO 23,500 24,000 24,300 24,500 24,300 26,300 27,100 24,100 16,400 14 13,600 7,330 23,600 23,500 24,000 24,400 24,700 24,200 26,400 27,000 23,900 16,200 15 13,500 7,260 23,600 23,500 24,000 24,300 24,700 24,100 26,300 27,000 23,600 15,900 16 13,200 7,130 23,600 23,400 24,000 24,100 24,800 24,100 27,000 27,OOO 23,400 15,700 17 13,000 9,180 23, 600 23,400 24,000 24,100 24,800 24,000 26,900 27,000 23,20C 15,300 18 12,300 17,500 23,500 23,400 24,000 24,100 24,300 24,000 27,000 27,000 22,900 15,200 19 12,600 19,400 23,500 23,400 24,000 24,100 24,300 24,100 26,900 26,9OO 22,600 14,900 20 12,400 20,100 23,500 23,500 24,000 24,000 24,800 24,200 26,900 26.9OO 22,400 14,700 21 12,200 20,400 23,500 26,700 24,000 24,OOO 24,700 24,300 26,300 26 , 900 22,100 14,400 22 12,000 20,'. 00 23,500 25,400 24,100 24,000 24,300 24,400 26,700 27,000 21.90C 14,100 23 11,800 21,000 25,100 24,300 24,000 24,000 24,800 24,600 26,300 27,000 21,60C 13,900 24 11,600 21,200 25-, 200 24,400 23,900 24,000 24,900 24,300 27,000 27,OOO 21,30C 13,6OO 26 11,400 21,500 24,600 24,100 23,900 24,200 24,800 24,800 27,000 27,000 21,10C 13,300 26 11,200 21,700 24,200 24,100 23,900 24,300 24,600 24,700 27,000 27, 000 21,OOC 13,000 27 11,000 22,100 24,100 24,OOO 23,900 24,400 24,700 24,700 27,000 26,9OO 20,60C 12,800 26 10,300 22,500 24,000 23,900 23,900 24,600 26,000 24,600 27-.100 26,900 20,300 12,400 29 10,600 22,700 24,000 23,900 _ 24,600 25,000 24,500 26,900 26,800 20,100 12,300 30 10,300 33,000 23,900 83,900 _ 24,600 24,800 24,300 26,900 26,700 19, tec 12,100 31 9,980 - 25,960 23,900 - 24,300 - 24,700 * 26,600 19,600 - Monthly elevation and contents, water year October 1942 to September 1943 Change In contents Date Elevation Oontents during month (feet) (acre-feet) (acre-feet) 4,649.5 16.6OO 4,641.6 9,930 -6,620 4,656.6 23,000 +13,020 Deo. SI...... 4,657.6 23,900 - _ -1,600 4,657.6 23,900 0 4,657.6 23,900 0 4,658.0 24,300 +400 , 4,658.6 24,300 +500 4,658.4 24,700 -1OO 4,660.3 26,900 +2,200 4,660.5 26,600 -3OO 4,652.9 19,600 -7,000 Sept. 30...... 4,644.3 12,100 -7,500 - - -4,500 Time basis! Pacific war time. To convert war time to standard tine, sub- traot 1 hour. 238 TUOLUMNE RIVER BASIN Eleanor Creek near Hetch Hetchy, Calif. Location.- Water-stage recorder and concrete control, lat. 37°58', long. 119°53', In SWi sec. 3, T. 1 N., R. 19 E., In Yosemlte National Park, 0.6 mile downstream from Lake Eleanor Dam, 1.1 miles upstream.from Mlguel Creek, and 5i miles northwest of Hetch Hetchy. Altitude of gage, about 4,600 feet (from topographic map). Drainage area.- 80 square miles. Records available.- November 1915 to September 1943. June to October 1£01 and November 1909 to November 1915 at site 1 mile upstream. Average discharge.- 33 years (1910-43), 222 second-feet. Extremes.- Maximum discharge during year, 3,480 second-feet Jan. 22 (gage height, 8.05 reet}; minimum, 26 second-feet (regulated) July 26. 1909-43: Maximum discharge, 10,500 second-feet Dec. 11, 1937 (gage height, 13.95 feet), from rating curve extended above 1,500 second-feet on basis of velocity-area Studies; no flow Sept. 8-14, 1910, Oct. 15-21, 1930, Nov. 19, 22, 23, 1931, Dec. 6, 1933. Remarks,- Records excellent. No diversion. Flow regulated by Lake Eleanor (see preceding Rating table, water year 1942-43 (gage height. In feet, and discharge, In secon/d-feet) 2.0 27 3.2 177 4.7 740 6.7 2,130 2.2 40 3.6 248 6. 0 690 7.2 2,630 2.4 58 3.S 340 6. 4 1,110 2.6 SI 4.1 454 5. 3 1,360 2.9 123 4.4 590 6.2 1,670 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. NOT. Dec. Jan. Feb. Mar. Apr. May June Jily Aug. Sept. 1 110 114 35 198 227 165 438 880 1,540 185 66 123 2 110 114 56 1S1 206 179 520 9S4 1,270 123 35 123 3 110 114 79 162 188 188 605 885 715 137 95 123 4 ice 107 104 144 1S1 236 635 940 302 208 100 125 5 108 102 100 126 1S5 372 680 805 147 185 100 126 6 108 102 94 111 183 438 556 785 138 160 102 126 7 108 108 104 100 198 358 510 780 162 175 108 108 8 107 114 95 68 232 410 605 755 215 169 114 112 9 111 114 89 81 212 922 528 » 615 288 168 112 126 10 118 112 84 77 190 1,540 409 585 228 147 112 130 123' 11 105 112 81 74 188 1,000 333 6tS ' in 114 130 12 91 111 79 71 192 66O 333 676 235 110 112 130 13 98 111 77 69 206 see 406 580 261 107 118 130 14 US 111 70 69 282 576 626 463 £08 108 120 128 15 117 100 69 69 240 580 716 410 «4 107 120 128 16 114 32 60 71 251 403 755 344 243 100 118 128 17 105 53 61 71 256 369 755 297 365 94 120 130 18 106 36 61 68 248 395 765 268 340 86 122 132 19 105 33 61 64 245 340 790 288 358 84 120 130 20 108 32 59 88 254 294 775 333 344 55 US 128 21 112 32 67 1,230 273 288 700 395 320 40 117- 138 22 112 32 77 2,570 344 291 720 463 248 40 113 128 23 111 32 325 1,450 313 282 830 586 113 39 116 128 24 111 32 1,700 330 262 282 906 74O 90 39 117 132 25 111 32 968 528 248 323 880 795 133 89 117 147 26 112 32 520 391 225 406 730 760 166 39 116 147 27 112 33 354 347 220 488 625 706 160 60 116 147 28 112 34 309 288 198 556 2 ,160 700 168 66 116 136 29 112 34 320 266 . 686 1 ,430 646 ,230 64 116 81 30 112 34 270 300 . 610 86O 556 190 71 116 89 31 114 - 227 270 - 476 650 77 180 Second- ,. Runoff in Month foot-days Maximum MlnlBUa "*"n acre-feet October...... 3,395 118 91 110 6,730 November...... £ r£09 114 SB 73.6 4,380 Deoenber...... 6,624 1,700 35 214 13,140 Calendar year 1943 ...... 111,867 1,740 16 305 220,700 January...... 10,461 2,670 64 337 20,730 February...... 6,386 344 181 328 12,660 March...... 14,699 1,540 " 179 471 28,960 April...... 21,563 2,160 333 719 42,770 Bay...... '...... 19 122 984 266 617 37 , 93O June ...... 9)396 1,540 64 313 IS, 640 July...... 3,185 208 39 103 6,330 August...... 3,483 122 86 112 6,910 September...... 3,777 147 81 126 7,490, Water year 1942-43 ...... 104,189 2,670 lb 286 206,700 Pacific war tine, To convert war time to standard'tine, aubtraet' 1 tsour* TUOLUMIE RJVSR BASIN 839 South Fork Tuolunme River near Oakland Recreation Camp, Calif. Location.- Water-stage recorder, lat. 37°49', long. 120°00', in SEi sec. 29, T. IS., R. 18 w. f at Cliff House, 75 feet downstream from highway bridge on Big Oak Flat road, half a mile southwest of Oakland Recreation Camp, and 0.6 mile upstream from confluence with Middle Tuolumne River. Altitude of gage, about 2,800 feet {from topographic map). Drainage area.- 87.6 square miles. Records available.- March 1923 to September 1943. Average discharge.- 20 years, 92.3 second-feet. Extremes.- Maximum discharge during year, 5,210 second-feet Jan. 21- (gage height, 8.00 reet), from rating curve extended above 1,100 second-feet: minimum, 14 second-feet Sept. 19-25, 30. 1923-43: Maximum discharge, 6,950 second-feet Dec. 11, 1937 (gage height, 10.00 feet), from rating curve extended above 1,000 second-feet on basis of velocity-area studies; minimum, 0.3 second-foot Aug. 23, 1934. Remarks.- Records excellent prior to Jan. 20 and good thereafter. No diversion. / Rating tables, water year 1942-43 (gage height, In feat, and discharge, in second-feet) Oct. 1 to Jan. 21 Jan. 22 to Sept. SO ! * I* 2.4 80 ' 3.8 354 6.0 1,930 3.3 207 4.5 635 1-6 20 2.6 103 4.1 475 6.2 2,170 3.6 270 4.8 830 1.8 29 2.9 144 4.5 675 3.9 368 5.2 1,160 2.0 42 3.2 189 6.0 995 4.2 478 2.2 59 3.5 258 5.5 1,410 . Hpte.- Same as preceding table 'below 3.3 and above 5.2 feet. Discharge, in second- feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 18 18 47 7& 248 189 295 394 270 57 21 17 2 IS IS 48 71 211 1S1 307 376 205 56 25 17 3 18 25 58 64 189 193 310 358 162 55 23 17 4 17 27 48 62 176 218 298 369 147 54 23 17 5 17 22 41 61 168 343 313 325 133 52 2) 17 6 17 21 40 57 158 488 282 345 126 50 2^ 16 7 17 20 38 54 190 342 278 322 139 48 2* 16 8 17 20 41 54 215 398 319 310 * ISO 46 2' 16 9 16 20 41 50 173 714 282 282 124 44 2^ 16 10 16 20 39 52 162 1,060 262 292 119 44 28 16 11 22 19 39 49 173 665 245 285 116 43 21 »« 12 26 19 38 48 175 497 241 262 112 41 & 16 13 22 19 36 " 48 178 422 250 252 106 41 20 16 14 20 19 38 48 179 465 285 237 101 40 21 15 15 20 34 38 47 176 406 301 216 97 39 19 15 16 20 33 38 47 173 355 316 202 96 39 19 15 17 19 153 38 42 164 380 319 196 92 38 19 15 18 19 754 36 33 158 406 322 193 89 37 19 15 19 19 265 35 41 155 342 319 207 86. 36 19 14 20 16 104 35 81 158 316 301 209 81 35 19 14 21 18 78 33 2,190 184 335 301 216 78 34 19 14 22 18 66 36 1,240 290 319 313 231 77 34 19 14 23 18 61 112 1,390 243 295 332 250 72 33 19 14 24 18 59 340 548 216 285 322 262 70 31 19 14 25 18 56 203 376 223 288 319 248 67 31 18 14 26 18 50 123 301 212 295 288 229 66 30 IS 15 27 18 57 103 282 209 295 282 221 63 29 16 15 28 18 69 9a 243 198 310 896 205 62 28 18 15 29 18 54 103 235 335 469 186 60 28 17 15 30 18 50 87 469 316 362 173 58 27 17 14 31 18 80 322 301 191 26 17 Seoond- runoff in Month foot-days MaximuB Minima Mean a-? re-feat Ooto 574 26 16 IS. 5 1,140 Hove 2,230 754 18 74.3 4,480 Deceaber...... 2,134 340 33 68.8 4,230 Calendar year 1942 ...... 57,490 793 16 158 114,000 January 8,681 2,190 33 280 17,220 Pebr 5,354 290 155 191 10,620 Hare h...... 11,754 1,060 181 379 23,310 Apr! 9,729 896 241 324 19,300 May. 8,046 394 173 260 15,960 June 3,194 270 58 106 6,340 July 1,226 57 26 3S.5 2,450 Augu 639 26 17 20.6 1,270 Septfc:::::::::::::::::::::::::::::::::: 460 17 14 15.3 912 W*ter year 1942-43 ...... 54,021 2,190 14 148 107,200 Peak discharge.- Hov. 18 (10r30 a.m. and 2:30 p.m.) 995 sec. -ft.: Jan, 21 (B p.m.) 5.810 sec. -ft. i Jan. 28 ( Time bai 240 TUOLUMJE RIVER BASIN Middle Tuolumie River at Oakland Recreation Camp, Calif. Location.- Water-stage recorder, lat. 37°50', long. 120°00', In NWi SOT. 28, T. 1 S g- *?.?' ** Oakland Recreation Camp, half a mile upstream from confluence with South Fork Tuolumne River and 4 miles east of Buck Meadows post bfflee. Altitude of gage, about 2,800 feet (from topographic map). Drainage area.- 71.0 square miles. Reoorda available.- November 1916 to September 1943. Average discharge.- 26 years (1917-43), 72.8 second-feet. Extremes.- Maximum discharge during year, 1,550 second-feet Jan 21 (g*«re height;, 7,£ "~".,22^.kBI,/; muiui , . 0-82?25£:!2;- t ip»«I»^LAS5:AI««?,>»}. age eg,Ut, 0.1. ' foot)oo;. 1917-43: Maximum discharge, 2,910 second-feet Dec. 11, 1§37 (gage height, 10.4 feet, from floodmarks), from rating curve extended above 1,000 second-feet on basis of velocity-area~ e studies; no flow Sept. 4~14» 1924» Aue- te to Oct- 5» 11-17, 1934. sept. l£- Records good. Small diversion above station for Irrigation. Bating table, water year 1942-43 (gage height, In feet, and discharge, in second-feet) 0.9 2.1 1.4 9.6 e.6 73 4.6 434 1.0 3.1 1.6 16 2.9 107 5.0 660 1.1 4.4 1.8 23 3.2 154 5.5 690 l.e 5.9 e.O 33 3.6 210 6.9 8O2 1.3 7.6 e.3 49 4.0 316 Discharge, in second-feet, water year October 1942 to Septembe- 1943 Da, Oct. Nov. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 2.6 4.0 22 39 90 36 191 486 . 405 43 9 3.4 2 2.6 4.0 22 37 S3 63 212 498 302 42 S.5 3.4 3 e.e 6.6 26 31 77 84 224 468 232 40 s.e 3.4 4 2.5 6.6 24 33 7B 93 SSO 608 107 40 S 3.1 5 e.5 5.5 19 34 70 170 236 4B7 170 38 7.5 3.0 6 e.4 6 16 29 66 240 210 463 161 36 7.6 2.9 7 2.4 5 16 28 96 152 214 448 167 34 7.6 e.e 8 e.s 5 19 30 93 214 260 424 168 32 7 e.8 9 e.s 5 20 26 74 388 222 367 154 30 7 2.7 1C e.4 6.6 18 .28 7B 557 197 400 146 29 6.6 e.s 11 3.6 S 17 26 80 360 1S3 396 144 87 6 2.6 12 6.6 6 17 25 80 871 183 see 131 ee 6 e.e 13 6.6 6 17 24 80 232 204 338 ieo 24 6 2.5 14 6 4.8 17 ee 79 250 250 317 114 23 6.6 2.4 15 4.7 7.6 16 ee 73 224 ' 271 289 ,110 ei 6.6 2.3 16 4.4 10 15 24 77 191 295 263 107 ei 5 2.3 17 4.1 26 15 ei 76 200 308 264 .102 eo 4.8 2.3 IS 3.9 301 14 11 73 230 320 250 97 20 4.7 S.I 19 3.6 140 14 18 71 187 331 269 91 ei 4.4 1.8 20 3.5 48 14 42 74 16^ 316 282 83 18 4.3 1.8 21 3.4 36 12 796 80 176 313 293 78 - ee 4.1 \ 1.8 22 3.2 32 16 497 123 168 340 317 74 ei 4.1 1.8 23 3.2 28 56 552 10S 154 369 see 68 16 4.1 1.8 24 3.2 ee 180 836 92 161 360 406 64 16 6 .1.8 25 3.2 24 13O 146 96 166 367 393 ee 16 4.1 1.9 26 3.4 21 61 118 92 168 see 360 66 14 4.0 e.e 27 3.4 £6 54 129 96 178 317 346 68 IS 3.9 8.3 28 3.4 36 60 97 90 191 767 320 SO 3.9 e.e 29 3.2 28 ee 100 224 634 881 47 - g 3.6 e.e 30 3.8 24 44 eos 200 406 S58 44 10 3.6 e.4 31 3.9 -4e 117 193 278 10 S.6 Month foot-dsysSecond- "wiw"uo-«-,,- HlnlmuD * OBB acre-feetRunoff in Ootc 107.6 6.6 e.3 ,3.47 813 Nove 883.3 301 4.0 89.4 1,750 Deoenber...... 1,054 180 12 94.0 8,090 Calendar year 1942 ...... 42,815.9 716 e.s 117 84,930 Janu ary 3,554 796 11 116 7,060 Febr e,34i iea 66 83.6 4,640 Hare 6,338 667 82 804 12,570 Apri 1...... 8,934 767 183 298 17.7BO Hay. 11,120 606 250 see ee.oeo June 3,79e 406 44 iee 7,520 July 747 43 10 e4.i i,48o Augu 173.0 9 3.6 6.68 343 September...... 74.0 3V4 1.8 e.47 147 Hater year l94e-43 ...... 39,117.3 796 1.8 107 77,680 Peak discharge.- Jan. 21 (1 p.m.) 1.56O sec. -ft.: Jan. S3 (4 a.m. ) 848 MC.-fT.t tiff. 10 (8 a.a.) aslai Pacific war time. To convert war time to standard tine, subtract 1 hour. TUOLUMNE RIVER BASIN 241 Woods Creek near Jacksonville, Calif. Location.- Water-stage recorder, lat. 37°51'. long. 120°34', In SWi sec. 12, T. 1 S., R. 14 E., li miles upstream from mouth and It miles northwest of Jacksonville. Altitude of gage, about 645 feet (from topographic map). Drainage area.- 98.4 square miles. Records avallable.- October 1925 to September 1943. Average discharge.- 18 years, 63.8 second-feet. Extremes.- Maximum discharge during year, 8,200 second-feet Jan. 21 (gage height, 10.35 reet); minimum, 1.6 second-feet Aug. 21. 1925-43: Maximum discharge, 13,500 second-feet Feb. 9, 1938 (gage height, 10.5 feet), from rating curve extended above 1,000 second-feet on basis of velocity-area studies; no flow at times during summers of 1929-36, 1939, 1940. Remarks.- Records fair. At times small amounts of water from Stanislaus River Basin are spilled into Wood Creek above station. Day Oot. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 3.5 15 21 42 222 158 125 68 14 15 2.5 2.2 2 3.7 14 20 40 172 136 120 64 16 15 2.5 2.2 3 4.2 14 25 36 139 133 115 60 14 14 2.2 2.2 4 3.2 12 25 35 120 180 110 57 12 15 2.2 2.2 5 3.2 12 23 32 108 1,060 150 56 12 14 3.2 2.2 6 \ 3.0 10 77 31 97 1,080 140 63 10 14 3.8 2.2 7 1 3.0 9 39 30 22O 330 130 50 10 14 3.8 2.5 8 3.0 S 36 29 491 564 150 46 11 13 3.S 2.9 9 3.0 7.5 33 28 240 845 120 46 14 12 3.8 2.9 10 3.0 S.5 30 2S 179 1,780 100 45 23 12 3.2 2.9 11 5.5 10 25 26 141 578 90 42 23 10 2.9 3.2 12 7.5 9.5 25 28 125 351 85 42 23 9 4.2 3.8 13 8.5 10 25 28 109 256 82 33 20 9.5 4.2 3.8 14 8.5 11 24 27 98 407 79 22 21 9 3.5 4.2- 15 8.5 11 24 27 91 278 79 20 14 7.5 3.2 4.2 16 6.5 13 25 27 83 204 76 20 9.5 S 2.2 3.5 17 8.5 31 25 26 76 404 75 18 9 4.2 2.2 3.2 18 8.5 580 25 25 72 465 73 17 8 2.9 2.9 2.2 19 9 265 26 25 6$ 256 72 16 7 2.2 2.2 1.9 20 9 52 29 66 67 209 72 15 6.5 2.2 2.1 1.9 21 9 31 31 3,000 71 248 69 14 6.5 2.9 1.8 1.9 22 9.5 26 34 994 172 283 63 13 7 3.2 2.1 1.9 23 11 22 204 1,590 156 188 66 12 6.5 3.2 2.2 1.9 24 14 20 675 403 257 164 65- 10 6 3.2 2,2 2.1 25 13 18 728 207 771 148 62 9 6.5 2.9 2.2 2.1 26 13 18 164 165 267 139 63 8.5 6.5 2.5 2.2 2,5 27 14 25 83 542 344 133 64 8.5 8.5 2.5 2.2 2.9 16 34 64 188 193 126 220 8.5 11 2.5 2.2 3.2 29 15 26 68 175 130 102 9 12 2.9 2.2 3.5 30 15 22 53 1,440 150 81 8.5 14 2.9 2.2 3.5 31 16 45 464 140 10 2.5 2.2 Second- ,. _, _ _ Runoff in Month foot-days "«1«M" Minimum Mean acre-feet Octo ber...... '...... 260.3 16 3.0 e.40 516 Hove mber...... 1,343.5 580 7.5 44.8 2,660 Deoember...... 2,731 728 20 88.1 5,420 Calendar year 1942 24,316.1 1,040 .4 66.6 48,240 Janu ary 9,806 3,000 25 316 19,450 Febr 5,149 771 67 1S4 10,210 Haro 11,523 1,760 126 372 22,860 Apri 1...... 2,903 220 62 96.8 5,760 May. 899.0 68 8,5 29.0 1,780 June 361.5 23 6 12.0 717 July 230.7 13 2.2 7.44 458 Augu St...... 84.3 4.2 1.8 2.72 167 September...... S1.8 4.2 1.9 2.7? 162 Water year 1342-43 ...... 35,373.1 3,000 1.8 96.9 70,160 Peak discharge.- ,Fan. 21 (8 p.m.) 8,200 sec. -ft.; Jan. 23 (3 a.m.) 3,980 see. -ft.; Jtn. 30 (3 p.m.) 2,910 sec. -ft.; Feb 25 (3*30 a.m.) 1,480 sec. -ft.; Mar. 6 (1 a.m.) 2,340 sec. -ft.; Ma". 10 (11 a.m.) 4,290 see. -ft. Note.- Ho gage-he .ght record Mar. 29 to Apr. 12; discharge computed on basis of reco-ds for Middle Tuolumrie and South . 'ork Tuolumne River and Cherry Creek near Hetch Hetchy. Time basis: PaciJ°ie wer tlrae. To" convert war time to standard time, subtract 1 hoir*. 242 TUOLUMNE RIVER BASIN Modesto Canal near La Grange, Calif. Location.- Water-stage recorder, lat. 37°40'04", long. 120°27'26", In SWi sec. 17, T. 3 S., R. 14 E., hair a mile northeast of La Grange and 1 mile downstream from Intake at La Orange Dam on Tuolumne River. Datum of gage Is 272.4 leet above mean sea level (levels by Modesto Irrigation District). Records available.- April 1903 to September 1943. Average discharge.- 40 years, 353 second-feet. Extremes.- Maximum dally discharge during year, 1,420 second-feet July 7; no flow Mar. 11. 1953-43: Maximum dally discharge, 1,820 second-feet July 1., 1935; no flow at times. Remarks.- Records excellent except those for periods of low flow November to Tferch, which are fair. Canal diverts water from right bank of Tuolumne River at La Grfge Dam for Irrigation In Modesto and Waterford Irrigation districts. Cooperation.- Gage-height record furnished by Modesto Irrigation District. Discharge, In second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 688 177 2 6 391 Z 301 1,000 1,210 792 737 790 2 80 2 6 15 2 305 1,000 1,200 799 734 794 681 <13 2 6 2 2 307 995 1,200 792 675 797 686 .82 2 6 2 2 305 992 1,200 778 642 780 502 2 6 2 Z 306 976 1,200 782 644 723 6 eel 340 2 6 2 2 300 995 1,190 1,080 636 730 351 2 6 2 2 300 1,000 1,190 1,420 640 737 8 684 327 2 6 2 2 89e 992 1,200 1,320 642 734 9 679 332 2 6 2 2 896 976 1,180 1,090 642 734 10 686 342 2 6 2 2 295 984 1,180 1,080 642 737 11 681 336 2 6 2 0 291 976 1,170 1,030 642 728 6S6 324 2 6 2 2 291 976 1,170 1,080 642 695 13 673 352 2 6 2 2 292 976 1,160 S75 644 688 14 677 333 Z 6 Z 2 294 967 1,160 742 644 684 , 684 301 2 6 2 S 511 9S9 1,170 744 644 681 16 668 76 2 6 2 2 614 962 1,180 739 644 631 17 523 2 Z 6 2 2 614 973 1,190 74S 642 686 483 Z 2 6 2 2 616 973 1,300 74S 814 684 19 493 2 2 6 2 2 618 973 1,870 734 861 686 494 6 2 6 2 2 618 978 1,390 732 881 681 21 494 6 2 6 2 Z 614 1,140 1,390 742 886 * 681 22 6 6 6 Z 2 847 1.200 1,380 744 sas 681 23 491 6 6 281 2 2 961 1,190 1,400 746 S83 684 24 491 6 6 535 2 £ 984 1,190 1,410 744 881 710 490 6 6 496 2 2 97S 1,190 1,390 737 823 710 26 499 6 6 494 Z Z 976 1,180 1,400 739 762 719 27 498 2 6 493 2 2 973 1,200 1,390 739 787 721 28 501 2 6 496 2 a 984 1,190 1,250 742 737 710 29 499 Z 6 499 _ 2 9S1 1,200 1,170 742 790 717 48S 2 6 496 - 2 998 1,200 925 74S 792 714 485 - 6 512 - 193 - 1,210 - 739 790 Second- Runoff in Month Maximum Minimus HME foot-daya acre-feet 638 488 November...... 480 18^ December...... 102 6 Z a.s E02 Calendar year 1942 ...... 190,696 . 1,58) S 527 376,000 4Q1 AQO April...... flflS May...... OJ25 July...... OAt* gg 801 rnr* Septenber...... 21,497 797 6S1 717 42,640 Water year 1942-43 ...... 186,715 1,420 0 51 E 370,300 Notei.- Ho gage-height record Nov. 17 to Jan. 22, Feb. 2 to Har. SO} discharge furnlahed by Modeafco Irrigation District. Time basia; Pacific war time. To convert war time to standard time, aubtmct 1 hour. TUOLUMNE RIVER BASIN 243 Turlock Canal near La Grange, Calif. Location.- Water-stage recorder and concrete control, lat. 37°40'00", long. 120°26'25", near north llnp of NWi sec. 21, T. 3 S., R. 14 E., 2,400 feet downstream from Intake at La Grange Dam and 1.2 miles east of La Grange. Altitude of gage, about 265 feet (from topographic map). Records available.- October 1898 to September 1943. Average discharge.- 45 years, 490 second-feet. Extremes.- Maximum dally discharge during year, 2,040 second-feet July 7; mlnliium dally, 1.0 second-foot Jan. 29. 1898-1943: mxlmum dally discharge, 2,150 second-feet July 2-4, 1942; no diversion for irrigation during some periods In each year. Prior to 1939, unmeasured small dis charge during winter called zero. Remarks.- Records excellent. Canal diverts from left bank of Tuolumne River at La Grange Dam for Irrigation In Turlock Irrigation district and to supply town of La Grange. During fall and winter some unmeasured flow is diverted from canal at tunnel 0.3 mile above gage, passed through La Grange power plant and returned to river. Cooperation.- Gage-height record furnished by Turlock Irrigation District. Discharge, in ssoond-feet, water year October 1942 to September 1943 Day Oct. MOV.' Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 846 10 1,310 15 13 11 509 1,270 1,770 1.310 §98 1,360 2 868 86 1,340 20 2.6 10 512 1,280 1,760 1,310 1,030 1,340 3 879 186 304 20 2.4 9.5 514 1,270 1,750 1,270 1,230 1,110 4 873 162 171 20 2.2 9.5 512 1,260 1,740 1,130 1,250 1,140 5 886 186 169 20 2.2 10 514 1,420 1,740 1,140 1,260 1,460 6 854 144 164 20 2.0 16 520 1,670 1,790 1,680 1,290 1,440 7 840 102 161 20 1.8 19 514 1,790 1,850 2,040 1,280 1,190 8 856 52 161 17 22 18 520 1,650 1,890 2,010 1,290 1,180 9 869 107 159 23 36 18 514 1,750 1,670 1,990 1,280 1,210 10 889 128 159 29 36 6 334 1,760 1,860 2,000 1,290 1,230 11 S20 58 161 29 36 2.0 232 1,760 1,860 1,980 1,290 1,260 12 856 76 161 28 37 1.4 232 1,760 1,850 1,980 1,310 1,310 13 906 99 161 27 37 1.4 234 1,810 1,840 1,600 :,3io 1,200 14 856 78 161 27 37 1.2 237 1,840 1,860 1,160 1,320 1,140 15 061 15 159 28 37 1.2 239 1,800 1,870 1,070 1,320 1,120 16 258 463 159 28 37 4.3 550 1,770 1,910 1,080 1,330 1,120 17 145 448 156 28 37 6 747 1,750 1,910 1,060 1,360 1,150 18 60 423 143 28 37 72 752 1,740 1,930 1,070 1,200 1,140 19 154 369 76 28 37 54 752 1,760 1,920 1,070 1,130 1,130 20 144 378 47 28 37 17 1,070 1,800 1,930 1,060 1,120 1,010 21 148 361 47 25 37 16 1,320 1,810 1,920 848 1,150 990 22 110 229 47 23 37 16 1,420 l.S^'i 1,910 868 1,160 1,020 23 122 1,110 47 24 37 16 1,530 l,tW 1,920 873 1,140 871 24 120 1,180 47 22 37 16 1,620 1,781 1,790 875 1,160 882 25 66 1,200 47 21 37 16 1,720 1,800 1,680 847 1,230 874 26 866 1,150 47 21 20 226 1,730 1,790 1,680 869 1,300 869 27 941 1,180 46 20 11 509 1,730 1,780 1,680 680 1,290 874 28 970 1,170 46 14 11 512 1,810 1,810 1,700 887 1,330 832 29 1,010 1,130 46 1.0 520 1,760 1,800 1,710 892 1,340 826 30 45 15 _ 528 1,440 1,730 1.S90 902 1,330 850 240 1,230 " " 31 88 45 24 - 514 1,760 1,070 1,360 Seccnd- Runoff in Month fcct-days Ifaxiuun Minimum Mean acre-fsst October...... 18,401 1,010 60 594 36,500 November...... 13,510 1 S30 10 450 36 9 BOO December...... 5,992 1^340 45 193 11,880 Calendar year 1942 ...... 291,512.1 2,150 0 799 578,200 January...... 693.0 29 1.0 22 4 1,370 n February ...... 716.2 37 I » C £5»6 1,420 March...... 3,170.5 522 o» X*g" t. 102 6,290 April ...... 26,088 1,810 870 51,740 52,630 1,840 1,260 1,698 104,400 June...... 54,480- 1,930 1,590 1,816 108,100 July...... 38,821 2,040 847 1,252 77,000 August ...... 38,669 1,360 999 1 247 76,700 September...... 33,128 1,460 826 1*104 65,710 Water year 1942-43 ...... ,'.... 286,298.7 2,040 1.0 784 567,900 Time baalai Pacific war time. To convert war time to standard time, subtract 1 hour. 244 STANISLAUS RIVER BASIN Middle Fork Stanislaus River at Kennedy Meadows, Calif. Location.- Water-stage recorder, lat. 38°18', long. 119°4S', In NEi sec. 11, T. 5 N., R. 20 E., at upper end of Kennedy Meadows, 1 mile upstream from Deacbmn Creek and 2 miles downstream from Relief Reservoir. Altitude of gage, about 6,450 feet (from topo graphic map). Drainage area.- 49.5 square miles. Records available.- October 1938 to September 1943. Extremes.- Maximum discharge during year, 1,160 second-feet June 1 (gage height, 6.17 feet); minimum, 12 second-feet Nov. 13. 1938-43: Maximum discharge, that of June 1, 1943; minimum, 11 second-feet Jan. t>, 1939. Remarks.- Records good except those for periods of Ice effect or no gage-height record, which are fair. Flow regulated by Relief Reservoir .(capacity, 15,000 acre-feet); no diversion. Cooperation.- Water-stage recorder graph and one discharge measurement, furnished by pacific Gas & Electric Co., obtained In connection with a Federal Power commission project. Rating table, »«ter year 1942T43, except periods of lee effect (gage height, In feet, and discharge. In second-feet) 1.8 12 2.6 81 4.4 412 1.4 IS 2.9 111 4.7 516 1.6 25 3.2 150 5.0 628 1.8 33 3.5 198 5.5 836 2.0 42 3.8 251 6.0 1,070 2.3 59 4.1 322 Discharge, in second- feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 24 14 21 76 20 22 222 1,020 330 122 25 2 19 14 23 75 18 22 231 696 279 104 25 3 17 14 23 74 18 23 168 426 312 93 25 4 \ 1S 15 21 74 18 23 139 296 353 85 . 25 5 15 14 20 73 18 23 222 247 362 25 > aSOO 6 14 14 19 72 18 23 212 262 399 76 25 7 a!4 14 b!9 72 18 22 212 333 362 75 26 8 a!4 14 b!9 72 b!8 26 212 446 312 71 28 9 a!4 14 19 71 b!8 35 200 509 304 67 27 10 a!4 14 19 71 ble 38 193 5i6 282 63 26 11 al4 13 19 71 18 31 190 . 545 277 61 24 12 a!5 13 19 71, 19 31 195 412 277 58 43 13 a!5 13 19 71 20 31 210 336 284 60 103 14 a!5 14 19 71 21 31 235 298 289 61 111 15 a!5 15 30 71 23 a30 242 296 282 60 110 16 a!5 15 75 50 25 aSO 247 > aSOO 446 229 57 109 17 a!5 37 75 17 25 a29 259 442 210 46 108 18 a!5 88 74 b!7 25 a29 270 571 819 31 107. 19 a!5 40 73 -b!7 26 a£8 S77 609 206 31 106 20 a!5 29 72 17 28 a26 270 520 198 P9 104 21 15 24 71 54 28 a27 274 470 196 29 103 22 15 24 72 36 27 a27 294 350 309 193 30 102 23 15 25 86 26 25 a26 314 640 259 183 31 68 24 15 26 90 22 24 a 27 314 840 ' 237 173 31 17 25 14 23 81 37 24 a32 299 672 224 171 30 18 26 14 21 77 32 23 40 866 725 253 168 ' 29 IB 27 14 24 78 24 23 48 270 792 257 - 160 28 17 28 14 23 80 bSl S2 US 390 72S 306 US 26 17 29 13 22 79 20 _ 229 299 644 333 132 27 17 30 14 22 77 20 . 220 296 590 330 136 27 17 31 14 - 77 18 - 217 586 132 25 Seccnd- u___ Runoff in Month foot-days Maximum Minimum Mean acre-feet October...... 467 24 13 15.1 926 November...... 652 88 13 21.7 1,290 December...... 1,546 90 19 49.9 3,070 Calendar year 1942 ...... 58,705 876 13 161 116,400 January...... 1,513 76 17 48.8 3,000 Fsbru&ry 608 28 18 21.7 1,210 March...... 1,566 229 2£ 50.5 3,110 April...... 4...... 7,482 390 139 ' 247 14,720 Hay...... 14,861 840 479 29 480 June ...... 12,204 1,020 224 407 24^210 July...... 7,552 399 132 244 14,980 August ...... 1,644 122 2* 53 0 3 , &60 September...... 1,586 111 17 52.9 3,150 Water ysar 1942-43 ...... 51,621 1.020 13 141 102,400 a Ho gage-height record; discharge computed on basis of records for nearby pt-eaics. b Stage-discharge relation affected by ice. Time basl»i Pacific war time. To convert war time to stendarcl time, subtract 1 hour. STANISLAUS RIVER BASIN 245 Middle Fork Stanislaus River at Sand Bar Flat, near Avery, Calif. Location.- Water-stage recorder, lat. 38°ll', long. 120°09', In sec. 19, T. 4 N., R. 17 E., 1 mile upstream from diversion dam of Pacific Gas & Electric Co. at Sand Bar Flat, and 11 miles southeast of Avery. Altitude of gage, about 2,650 feet (from topographic map). Drainage area.- 318 square miles. Records available.- September 1905 to September 1943. Average discharge.- 37 years (1905-8, 1909-43), 700 second-feet. Extremes.- Maximum discharge during year, 8,080 second-feet Jan. 21 (gage height, 12.70 feet); minimum, 71 second-feet (regulated) Nov. 10. 1905-43: Maximum discharge recorded, 26,500 second-feet Dec. 11, 1937 (gage height, 21.0 feet, from floodnarks), from rating curve extended above 6,000 s&cond- feet on basis of logarithmic plotting; minimum discharge, 30 second-feet Aug. 24, 1924. Remarks.- Records good. Flow regulated by Relief Reservoir (capacity, 15,800 acre-feet). Water diverted by Philadelphia Canal (see p.252) from South Fork Stanislaus River through Spring Gap powerhouse into Middle Fork above station. Stanislaus tunnel diverts 1 mile downstream. Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., ob- fcained in connection with a Federal Power Commission project. Rating table, water year 1942-43 (gage height, In feet, and discharge. In second-feet) 2.9 68 3.4 130 4.0 226 5.2 548 6.5 1,080 8.0 2,000 9.5 3,330 3.0 79 3.6 158 4.4 318 5.6 685 7.0 1,340 8.5 2,400 10.0 3,870 3.2 104 3.8 190 4.8 426 6.0 840 7.5 1,650 9.0 2,840 10.5 4,480 Discharge, in second- feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. Hay June July AV«. Sept. 1 194 79 E63 513 685 668 1,570 3,070 4,600 1,160 395 164 2 144 78 301 501 657 668 1,780 3,240 3,230 1,060 357 162 3 138 85 429 459 622 676 1,870 2,820 2,240 1,060 349 160 4 134 91 E96 450 612 740 1,770 2,620 1,730 1,160 326 160 5 131 81 S44 444 636 1,060 1,990 2,500 1,470 1,140 306 155 6 130 84 244 415 608 1,140 1,660 2,670 1,340 1,220 299 152 7 129 81 834 401 646 1,000 1,740 2,700 1,500 1,160 296 152 8 127 83 246 392 632 1,300 1,940 2,510 1,750 1,060 8^65 152 9 127 61 857 378 587 2,860 1,580 2,150 1,950 1,010 e?70 158 10 127 74 836 378 570 3,730 1,420 2,300 1,930 945 257 158 11 134 74 £40 367 . 598 2,290 1,350 2,280 al,860 935 246 154 12 145 74 £34 362 601 1,800 1,410 2,060 al,650 903 236 154 13 140 74 234 357 612 1,630 1,620 1,920 al,450 872 234 200 14 136 74 £36 360 640 1,710 1,960 1,780 al,430 862 232 244 15 136 99 232 362 664 1,470 2,040 1,600 al,520 840 22S 244 16 137 107 £48 357 665 1,290 2,210 1,440 al,650 784 224 246 17 133 292 892 301 678 1,260 2,350 1,360 al,790 692 224 a246 18 130 2,310 £87 234 674 1,210 2,380 1,300 al,930 664 209 a244 19 131 774 £84 252 678 1,120 2,440 1,390 2,060 640 190 242 20 131 376 S82 311 728 1,070 2,260 1,420 al,780 590 185 244 131' 21 287 £75 2,990 760 1,070 2,140 1,610 al,680 636 182 246 22 131 257 £87 2,780 858 1,030 2,380 1,850 al,340 580 180 246 23 125 259 592 2,230 788 985 2,690 2,460 al,180 561 176 248 24 113 275 1,860 1,350 744 1,000 2,740 3,120 al,050 532 176 a220 25 112 282 840 1,060 744 1,060 2,620 3,290 al,020 516 170 also 26 107 232 608 940 713 1,190 2,190 3,130 al.OOO 504 175 alSO 27 94 294 590 880 696 1,300 2,080 3,240 al,020 480 170 alSO 28 90 347 598 780 674 1,450 4,540 3,220 1,060 456 168 a!40 29 87 266 626 v 748 1,910 2,850 2,730 1,170 415 167 a!38 30 79 261 561 844 1,590 2,480 2,460 1,150 415 164 129 31 79 526 756 1,480 2,800 423 162 Second _ Runoff in Month foot-days Maximum Minimum Mean acre-feet Octo ber...... 3,882 194 79 125 7,700 Hove 7,831 2,310 74 261 15,530 Decenber ...... 12,682 1,860 232 409 25, 150 Calendar year 1,942 346,215 4,770 74 949 686,800 Janu ary 22,952 2,990 234 740 45,520 Febr 18,790 858 570 671 37,270 Marc 42,779 3,730 668 1,360 84,850 Apri 1 ...... '...... 64,070 4,540 1,350 2,136 127,100 May. 73,040 3,290 1,300 2,356 144,900 June 50,530 4,600 1,000 1,684 100,200 July 24,275 1,280 415 783 46,160 Augu st ...... 7,238 395 16C 233 14,360 September ...... 5,608 248 129 187 11,120 Uster year 1942-43 ...... 333,677 4,600 74 914 661,800 Peak discharge.- Jan. 21 18 D.m.) 6.060 sec. -ft.: Ma*» 16 '8 a>jai) 4,360 sec. -ft. j Apr, 28 (7j30 a.m.) 6.S50 see.-ft.; May 2 (12:30 a.m.) 4,180 see.-ft.; June 1 (I p.m.) 5,400 sec.-ft. a so gage-height record; discharge computed on basis of unpublished records of flow through Stan islaus tunnel and over diversion dam 1 mile downstream. Tine baslst Pacific war time. To convert war time to standard time, subtract 1 hour. 246 STANISLAUS RIVER BASIN Melones Reservoir at Melones Dam, Calif. Location.- Staff gage and reference point, lat. 37°57'15", long. 120°30'45", near center of sec. 11, T. 1 N., R. 13 E., at Melones Dam on Stanislaus River 0.1 mile downstream from Bear Creek. Datum of gage is at mean sea level. Drainage area.- 897 square miles. Records available.- June 1927 to September 1943. Extremes.- Maximum contents observed during year, 115,200 acre-feet May 25, 26, June 1 (elevation, 736.4 feet); minimum observed, 6,500 acre-feet Oct. 14 (elevation, 628.1 feet). 1927-43: Maximum contents observed, that of May 25, 26, June 1, 1943; minimum, 5,820 acre-feet Oct. 12, 1929 (elevation, 625.7 feet). Remarks.- Reservoir is formed by concrete overflow dam; storage began Aug. 21, 1926; dam completed in December 1926. Capacity for power development 1 mile below dan is 106,100 acre-feet between elevations 628.0 feet (minimum operating level) and 735.0 feet (top of drum-type spillway gates) above mean sea level; usable capacity for irrigation, 110,000 acre-feet between elevations 610.0 feet (floor of outlet tunnel) and 735.0 feet above mean sea level. Figures given herein represent total contents at 7 a.m., of which 2,630 acre-feet is not available for release. Released water flows down Stanislaus River to Goodwin Dam, where it is diverted into Oalolale and South San Joaquin Canals for irrigation. Cooperation.- Record of contents, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project. Contents, Ln acre-feat, water year October 1942 to September 1943 Da* Oct. Nor. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 11,600 7,230 29,400 44,200 94,100 92,800 94,300 97,500 115,200 iir.soo 90,100 36,900 2 11,100 7,130 28,700 44,500 93,500 92,800 94,500 98,700 113,700 llf,400 SB, 800 35,500 3 10,400 7,200 28,200 44,900 93,000 92,700 95,000 98,400 108,900 112,400 86,900 33,800 4 9,760 7,360 28,000 44,800 92,800 92,800 95,000 97,700 104,600 lie ,400 85,700 32,200 5 9,070 7,490 28,600 44,800 92,500 93,300 95,000 98,200 101,600 llf,400 83,900 30,600 6 6,680 7,550 28,800 44,900 92,500 97,200 95,200 99,600 102,300 L1F.400 82,400 29,200 7 8,680 7,490 29,900 44,500 92,300 95,500 94,600 100,400 103,600 11?, BOO 80,600 27,700 8 8,020 7,580 S3, 000 44,100 93,500 94,500 94,800 100,600 105,3t)0 ll?,600 79,000 26,300 9 7,610 7,420 28,700 43,700 93,100 96,800 95,000 99,900 107,600 112,400 77,400 24,900 10 7,290. 7,360 B7,500 43,400 92,700 102,300 94,300 93,900 110,400 Llf.100 76,700 23,400 11 6,920 7,290 26,800 42,700 92,500 99,000 94,000 100,900 112,800 111,600 73,800 22,000 12 6,620 7,860 26,000 41,200 92,500 96,800 93,800 101,900 113,700 L1C, 900 72,100 80,600 13 6,530 7,290 26,SOO 39,900 92,300 95,800 94,000 101,900 113,400 L1C, 600 70,100 19,200 14 6,500 7,330 26,100 38,400 92,300 95,500 94,600 101,400 US.4600 IIC, BOO 68,3OO 18,200 15 6,560 7,360 25,100 36,900 92,300 95,700 95,000 100,900 113,400 LOS, 500 66,600 17,200 16 6,680 7,390 24,400 35,300 92,300 94,800 95,300 99,900 L13.500 LOE.900 64,900 16,500 17 6,770 7,710 23,800 33,800 92,500 94,500 95,700 98,900 113,400 L0e,400 63,000 15,600 18 6,890 9,340 23,000 33,100 92,300 95,200 95,300 100,100 113,000 L07,500 61,200 14,800 19 6,950 21,800 22,400 34,200 98,700 94,600 95,700 101,200 1.14,100 106,400- 59,500 13,900 20 7,040 24,800 21,600 35,100 92,500 94,300 95,700 103,000 114,500 LOS, 300 57,600 13,100 21 ,170 S5,800 20,800 37,200 92,800 94,000 95,200 105,300 114,100 .04,600 56,700 12,200 22 ,260 26,300 20,100 74 , 600 92, SCO 94,300 96,000 108,600 113,900 L 03. 300 54,200 11,400 23 ;330 26,600 19,600 91.7QO 93,600 94,000 97,000 L12.100 L13.SOO L02,100 52,300 10,600 24 . ,4EO 26,900 83,200 97,700 93,500 93,800 97,700 115,000 LlC, 800 101,100 50,600 9,760 26 ,580 87,100 31,300 96,000 94,300 93,600 98,000 115,200 a2,4oo 99,900 ,48,900 8,710 26 ,450 27,400 37,600 96,000 93,800 93,800 97,600 L16.2QO LIB, 200 96,700 47,100 7,910 27 ,360 37,600 39,200 95,700 93,500 94,000 96,500 114,600 .11,900 97,300 45,400 7,360 28 ,420 28,100 40,300 94,800 93,100 94,300 97,800 U.4,800 111,900 95,800 43,600 7,800 29 ,390 28,700 41,600 94,000 _ 94,600 99,400 93,300 .11,900 94,600 42,800 7,010 30 ,290 29,100 42,800 93,100 _ 95,300 97,700 95,700 L12.100 92,800 40,300 6,860 31 ,330 - 43,500 94,100 - 94,500 - 98,000 - 91,700 38,700 - Monthly elevation and contents, rater year October 1942 to Septem^r 1945 Change In contents Date Elevation Contents 1 during month (feet) ... (acre-feet) (aors-feet) 18,300 -4,970 670.2 29,100 +21,800 Dec. 31...... 686.1 43,500 +14,400 Calendar year 1942 ...... -, - +5,200 +50,600 93,100 -1,000 94,500 +1,400 97,700 +3, 200 96,000 -1,700 +16,100 July 31...... 723.0 81,700 -20,400 Aug. 31...... 381.2 Sept. 30...... 839. 3 5,860 -81,800 . -6,440 Pacific war time. To convert war time to standard time, OUJ?. STANISLAUS RIVER BASIN 247 Stanislaus River below Melones powerhouse, Calif. Location.- Water-stage recorder, lat. 37°56'50", long, 120°31'45", near line between sees. ITI ana 15, T. IN., R. 13 B., 300 feet downstream from powerhouse, half a mile upstream from Bear Gulch, and 1 mile downstream from Melones Dam. Altitude of gage, about 500 feet (from topographic map). Drainage area.- 898 square miles. Kecorai______avaiia'bls.- January 1931 to September 1943. Average aiscnarge.- 12 years, 1,609 sscond-feet. Extremes.- naxilum' discharge during year, 22,000 second-feet Mar. 10 (gage height, 17.3 reeti; minimum, 0.4 second-foot (regulated) Jan. 19, 20. 1931-43; Maximum discharge, 22,800 second-feet Mar. 31, 1940 (gage height, 17.6 feet); minimum, that of Jan. 19, 20, 1943. Remarks.- Records good except those for Jan. 23-31, Sept. 4-30, which are fair. Flow regulated by Melones Reservoir (see preceding page), several smaller reservoirs, and diversions above station. Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., ob- tainea in connection with a Federal Power Commission project. Rating tables, water year 1942-43 (gage height, In feet, and discharge, In second-feet) Oct. 1 to Mar. 10 Mar. 11 to Sept. 3T 3.3 1 4.6 308 e.o 4,850 5.6 1,050 3.4 3 5.0 536 10.0 6,300 3.4 3 1,850 3.6 12 5.4 810 11.0 7,960 3.6 13 7.2 2,770 3.8 32 5.8 1,150 12.0 9,900 3.8 40 8.0 3,730 4.0 74 6.6 1,960 13.0 12,000 4.0 94 9.0 5,060 4.2 134 7.0 2,400 14.0 14,200 4.3 212 10.0 6,540 4.4 212 8.0 3,570 15.0 16,500 4.6 356 11.0 8,190 4.9 530 12.0 10,000 5.2 730 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Au6. Sept. 1 518 156 864 869 3,030 2,080 3,740 6,060 9,230 1,440 1,190 1,060 2 500 105 824 871 2,550 1,960 4,210 7,370 9,380 1,430 1,190 1,050 3 506 103 876 887 2,840 1,880 4,580 6,570 6,490 1,450 1,180 1,030 4 506 130 3S7 881 2,020 2,020 4,610 5,540 4,780 1,430 1,160 944 5 454 144 380 882 1,900 3,580 4,910 4,840 2,630 1,430 1,180 880 6 324 158 15 682 1,840 7,230 4,480 5,120 1,650 1,430 1.J300 a830 7 324 158 825 886 1,820 4,770 4,160 5,560 1,660 1,440 1,190 a840 8 318 160 793 881 2,430 4,570 4,610 5,500 1,670 1,440 1,190 a850 9 318 162 see 861 2,210 8,620 4,280 4,910 1>710 1,440 1,190 a825 10 311 146 628 861 1,940 17, 700 3,440 3,810 1,720 1,430 1,190 a820 11 303 138 834 1,220 1,830 10, 900 3,060 3,950 2,560 1,380 1,190 a820 12 259 128 14 1,390 1,780 7,200 3,030 4,540 3,030 1,340 1,190 aS15 13 206 126 827 1,390 1,750 5,780 3,370 4,160 2,710 1,240 1,190 . a640 14 156 126 881 1,380 1,740 5,640 4,480 3,950 1,990 1,260 If ISO a615 15 146 125 82? 1,380 1,750 5,330 4,650 3,670 1,990 1,260 1,180 a615 16 150 128 666 1,370 1,770 4,410 5,100 3,330 2,400 1,250 1,180 a610 17 138 178 82* 1,220 1,770 4,210 5,510 2.2701 2,370 1,250 1,180 a605 18 143 348 834 a2.5 1,480 4,630 5,520 1,820 2,430 1,240 1,180 a600 19 142 404 829 a. 4 1,850 3,900 5,630 1>840 2,780 1,260 1,180 a596 20 143 399 888 a. 4 1,590 3,420 5,520 1,760 2,830 1,,190 1,170 a59Q 21 136 400 820 a6.5 1,890 3,260 4,460 1,710 2,600 1,260 1,120 a585 22 142 399 813 a6 2,140 3,390 4,580 1,730 2,350 1,240 1,110 aSSO 23 145 390 797 a4, 610 2,500 3,080 5,500 2,680 1,930 1,240 1,100 a575 24 146 399 8S8 a6,900 2,340 2,930 6,280 5,760 1,760 1,230 1,100 a570 25 145 398 140 a4,080 3,170 2,930 6,380 6,260 1,680 1,230 1,100 a560 26 146 384 888 a3,520 2,740 3,110 5,410 5,990 1,480 1,220 1,090 a535 27 145 415 820 a3, 550 2,490 3,330 4,810 5,740 1,470 1,230 1,080 a340 28 148 411 874 a3,190 2,250 3,570 10, 100 6,060 1,470 1,220 1,080 a335 29 146 414 878 a2, 890 4,480 8,910 5,330 1,460 1,210 1,080 a315 30 140 408 857 a4, 940 _ 4,600 5,630 4,340 1,440. 1,200 1,070 a310 31 146 - 869 a4,040 - 3,920 4,600 - 1,200 1,060 ~ Second- Runoff in Month foot-clays Maximum Mininua Mean acre-feet October...... 7,449 518 136 240 14,770 November...... 7,540 415 103 251 14,960 December ...... 22,475 876 14 725 44,580 Calendar year 1942 733, 282 10,000 14 2,009 1,454,000 January...... 55,866.8 6,900 .4 1,802 110,800 February ...... 58,810 3,170 1,480 2,100 116,600 March...... 148, 430 17,700 1,860 4.78F 294,400 April ...... 150,950 10,100 3,030 5,032 299,400 Hay...... 136,470 7,370 1,710 4,402 270,700 June ...... 83, 670 9,380 1,440 2,78? 166,000 July...... "...... :...... 40, 500 1,450 1,190 1,306 80,330 August ...... /...... 35,690 1,200 1,060 1,151 70,790 September...... 20,329 1,050 310 67F 40,320 Water year 1942-43 ...... 768, 179.9 17,700 .4 g,10P 1,524,000 Peak discharge.- Mar. 10 (10 a. to.) 22,000 sec. -ft.; Apr. 28 (1 p.m.) 14,000 sec. -ft. ; June I (6 p.m.) 15,400 sec.-ft. a No gage-height record; discharge coaputed on basis of rscords of flow through powerhouse and unpublished records for station abore powerhouse. Time basist Pacific war tine. To eonfert war tine to standard tlae, subtract 1 hour. 848 STANISLAUS RIVER BASIN Stanislaus River at Rlpon, Calif. Location.- Water-stage recorder, lat. 37043'50", long. 121°06'35", In SEi sec. 29, T. 2 5., R. 8 E., at highway bridge, 1 mile southeast of Rlpon and 15 mile? above mouth. Datum of gage is at mean sea level. Records available.- October 1940 to September 1943 in reports of Geological Survey. April 1940 to December 1943 In reports of Division of Water Resources, Department of Public Works, State of California. Extremes.- Maximum discharge during year, 19,700 second-feet Mar. 11 (gage height, 59.83 TfeTJJ minimum, 186 second-feet Sept. 20 (gage height, 38.03 feet). 1940-43: Maximum discharge, that of Mar. 11, 1943; minimum, 166 second-feet Aug. 11, 12, 1942; minimum gage height, that of Sept. 20, 1943. Remarks.- Records g Storage and many diversions above station for power and irrigatlon. Cooperation.- Records collected and prepared in cooperation with Dlvisicn of Water Resources, Department of Public works, Stete of California and others, Five discharge measurements furnished by Buieau of Redaction. Rating tables, water year 1942-43 (gage height, In feet, and discharge. In second-feet) (Shifting-control method used June 24 to July 31) July 4 to Oct. 1 to July 3 Sept.50 38.4 218 46.0 2.100 56.0 6,600 38.0 180 39.0 330 50.0 3,430 57.0 10,700 39.0 380 41.0 773 53.0 4,680 58.0 13,400 40.0 590 48, O 1,260 54.0 5,410 60.0 20,300 Discharge, in second-fee t. water yesr October 1942 tc September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June Juljr Aug. Sept. 1 231 225 596 1,080 4,880 2,530 4 280 5,600 3,260 38S 24S 210 Z 244 216 782 1,080 3,290 2,350 3 980 4.S80 4,390 348 « 44 222 3 256 216 924 1,030 2,400 2,230 4 100 5,640 7,S70 326 2 28 230 4 266 239 635 1,080 2,030 2,160 4 370 5,740 6,140 346 Z 44 226 5 264 278 812 1,080 1,750 2,290 4 650 4,930 4,500 368 244 244 6 272 365 «09 1,070 1,630 3,560 4 700 4,190 2,460 314 226 256 7 264 398 984 1,070 1,640 6,550 4 720 3,930 1,310 314 S 20 226 8 239 424 £42 1,060 1,730 6,280 4 390 4,170 1,100 310 S.50 282 9 242 430 614 1,060 2,160 5,340 4 410 4,880 1,030 318 Z 38 220 10 266 428 535 1,050 1,940 7,640 4 520 4,000 946 314 222 284 11 332 426 544 1,050 1,640 17,600 4,030 3^100 890 316 230 218 12 314 406 544 1,210 1,530 12,300 3 490 2,890 1*260 284 t 34 228 13 294 396 864 1,460 1,660 8,450 3 270 3,080 lySEO ESO t 22 230 14 274 388 842 1,490 1,710 6,400 3 420 2»>»3ff 1,620 264 i 38 220 15 278 388 594 Ik 490 1,860 6,830 3,969 2y770 1*120 283 260 216 16 2SO 388 667 1,490 1,900 5,740 4,320 > 2,610 962 238 254 820 17 284 430 635 1,490 1,910 5,020 4 660 2,340 1,180 260 J 24 224 18 310 438 900 1,420 1,910 4,790 4 640 lk 680 1,260 268 ! 20 214 19 304 684 988 727 1,770 5,190 4 660 1,800 It 260 290 £ 24 206 20 294 914 988 485 1,970 4,640 4 ,630 1,070 1,600 254 £ 48 200 21 288 596 991 415 1,780 4,110 4 560 993 1,590 248 258 212 22 256 680 998 1,360 2,010 3,820 3 900 880 1,400 270 I 48 226 23 242 580 1,000 1,240 2,230 3,790 3 530 837 1,8SO E66 E 72 246 24 246 582 1,050 2,620 2,530 3,560 3 920 1,210 978 296 i 44 S32 25 244 575 1,260 4,860 2,620 3,320 4 ,420 3,240 808 288 262 276 26 256 578 1,020 5,160 3,460 3,260 4 720 4,010 716 240 262 280 27 244 582 933 4,130 3,120 3,360 4 490 4,800 646 236 £ 48 870 28 270 591 1,030 4,170 2,790 3,600 5 ,560 4,180 498 226 £ 80 880 29 2SO 594 1,060 3,210 _ 3,700 5 ,040 4,260 449 264 £!40 264 30 246 594 It 080 2,930 - 4,160 8 660 4,830 4S6 ess J 48 250 31 242 - 1,080 4,370 - 4,570 - 3,480 8*4 288 - Saoond- Runoff in Month fcot-days Maximum Minimum Mean acre-feet October ...... 8,328 332 831 288 16,510 November...... 13,832 914 216 461 27,440 December...... 26,691 1,260 636 868 52,740 Calendar yesr 1942 ...... 628,664 9,500 174 1.722 1,247,000 January...... 57,387 5,160 416 1,861 113,800 February ...... 61,630 4,880 USSO 2,801 182,200 March...... 157,910 17,800 2,160 5,094 313,200 April...... 133,760 8,660 3,870 4,469 865,300 llay...... 102,490 5,740 8S7 3,906 803,300 June ...... 54,642 7,870 436 1,818 108,800 July...... 8,636 388 '220224 279 17,150 August ...... '...... 7,416 272 239 14,710 September ...... 6,992 280 200 293 13,870 Water year 1943-43 ...... 639,508 17,600 200 1*762 1,268,000 Time basis; Pacific war time. To convert war time tc standard ti»e, subtract 1 hour. STANISLAUS RIVER BASIN 249 North Fork Stanislaus River near Avery, Calif, Location.- Water-stage recorder, lat. 38°14', long. 120°17', in sec. 35, T. 5 N., R. 15 E., 7UO feet upstream from intake of Utica Mining Co.'s canal, 3i miles upstream from Beaver Creek, and 5 miles northeast of Avery. Altitude of gage, about 3,400 feet (from topographic map). Drainage area.- 163 square miles. Hecoras available.- July 1914 to September 1922, November 1928 to September 1943. Average aisciiargeT- 22 years (1914-22, 1929-43), 428 second-feet. Extremes.- Maximum discharge during year, 11,200 second-feet Jan. 21 (gage height, 10.65 reet), from rating curve extended above 3,400 second-feet on basis of logarithmic plotting and velocity-area studies; minimum, 21 second-feet Oct. 17 (gage height, 0.72 foot). 1914-22, 1928-43: Maximum discharge, 17,700 second-feet Dec. 11, 1937 (gage height, 14.1 feet, from floodmarks), from rating curve extended above 3,400 second-feet on basis of A V3~studies; minimum, 5.5 second-feet Dec. 6, 7, 1929. Remarks.- Records good. Flow regulated by three reservoirs above station and diversion rrom Beaver Creek. Rating table, water year 1942-43 (gage height. In feet, and discharge. In second-feet) 24 2.2 146 6.0 2,050 29 2.6 20S 6.5 2,630 36 3.0 294 7.O 3,300 47 3.6 440 7.5 4,030 1.4 61 4.0 630 S.O 4,S70 1.6 78 4.6 S70 6,030 98 6.0 1,170 6.6 1,660 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 41 36 167 310 478 402 860 2,530 3,240 201 36 42 2 42 36 23S 294 464 411 1,450 2,690 1,570 224 34 42 3 41 45 268 262 421 437 1,640 1,170 1,050 199 34 42 4 41 46 180 236 414 525 1,590 1,900 813 190 46 41 6 40 42 164 822 440 914 1,680 1,820 679 179 46 40 6 39 40 143 204 424 870 1>200 1,890 538 174 46 40 7 38 40 134 190 467 683 lk 350 1,360 605 166 44 39 8 37 39 134 185 437 1,010 1,670 1,620 670 160 43 39 9 37 39 131 174 387 2,340 1,090 1,330 702 140 43 40 10 36 39 127 176 360 2,890 8S1 1,490 662 126 43 42 11 43 39 128 173 384 1,670 S18 1,600 674 119 42 44 12 42 38 128 164 396 1»210 992 1,300 560 113 42 43 13 34 38 128 160 421 1,160 1,370 1>190 467 109 41 43 14 30 39 129 160 447 1*200 1,760 1,OSO 427 109 40 42 15 26 61 128 167 471 980 1,760 947 427 10B 40 42 » 16 22 61 128 167 492 860 1,950 303 454 99 39 43 17 23 246 127 163 471 839 2,000 763 466 92 39 43 18 34 1,620 126 140 460 793 2,010 744 518 86 39 43 19 37 437 121 152 467 708 2,040 865 526 78 39 44 20 36 203 119 168 525 662 1,320 898 443 74 38 46 21 36 163 117 4,370 566 688 1,670 Ik 040 399 69 38 45 22 36 149 128 2,760 711 674 1,690 1,180 320 77 38 44 23 36 169 436 2,180 568 630 2,230 1,460 275 74 38 43 24 36 171 1,610 1,110 503 670 2,410 1,660 246 67 43 25 36 182 670 829 489 808 2,200 1,660 228 61 & 45 26 36 147 402 726 443 958 1,630 1,530 218 68 45 44 27 36 208 366 661 424 1,080 1,640 1,440 212 64 46 42 28 36 240 418 564 402 1,280 6,060 1,370 210 50 44 42 29 36 180 434 566 1*640 2,220 1,160 214 46 43 46 30 36 187 369 716 1,200 1,920 1,060 210 42 48 37 31 36 326 666 986 1,620 39 43 Second- Runoff in" Month foot-days Maximum Minimum Mean acre-feet Octo 1,116 43 22 36.0 2,210 Hove her...... 4,972 1,6BO 36 166 9,860 Deceraber...... 8,206 1,610 117 265 16,280 Calender year 1942 204,667 4,030 22 661 406,000 Janu ary 18,873 4,-370 140 609 37,430 Febr 18,902 711 360 461 26,690 Hare h...... 31,062 2,890 402 1,002 61,610 Apri 63,281 6,060 818 1,776 106,700 ay. 43,460 2,690 744 1,402 36,200 June 18,081 3,240 210 603 35,860 July 3,369 224 39 109 6,680 Augu st ...... 1,276 46 34 41.2 2,630 September ...... 1,270 46 37 48.3 2,620 Water year 1942-43 ...... 197,867 6,060 22 542 392,600 Peak discharge.- Jan. 21 (6 p.m.) 11,200 sec.-ft.j Bar. 9 (11 p.m.) 4,030 ssc.-ft.j Apr . 28 (6:30 a.m.) 9,66U sec. -ft. S May 8 (1 a.m.) 3,960 sec. -ft.; June 1 (1 p.m.) 4,360 sec. -ft. Tine basis t FaclfIc war time. To convert war time to standard time, subtract 1 hour. 350 STANISLAUS RIVER BASIN South Fork Stanislaus River at Strawberry, Calif. Location.- Water-stage recorder, lat. 38°12', long. 1£0°01', in SWi sec. 16, T. 4 N., R. J.8 E., an eighth of a mile downstream from bridge on state Highway 108, a quarter of a mile upstream from bridge at Strawberry, and half a mile downstream from Herring Creek. Altitude of gage, about 5,350 feet (from topographic map). Drainage area.- 45.5 square miles. Records available.- August 1938 to September 1943. October 1911 to January 1917 at site i mne aownsLream. Extremes.- Maximum discharge during the year, 1,790 second-feet June 1 (gage height, 6.20 reet;: minimum, 1.7 second-feet Nov. 14. ' 1911-17, 1938-43: Maximum discharge, that of June 1, 1943: minimum, that of Nov. 14, 194£. Remarks.- Records good, except those for periods of doubtful or no gage-height record, wmcn are fair. Flow regulated by strawberry Reservoir (capacity, 17,900 acre-feet). Cooperation.- Water-stage recorder graph and one discharge measurement, furnished by paciric oas & Electric Co., obtained in connection with a Federal Power Commission project. Rating table, water year 1942-43 (gage height, In feet, and discharge. In second-feet) 1.2 1.8 1.6 17 2.4 99 3.2 244 4.0 478 5.6 1,330 1-S 4.0 1.8 32 2.6 126 3.4 294 4.4 634 6.0 1,630 1'4 7 2.0 51 2.8 160 3.6 348 4.S S30 1-5 11 2.2 74 3.0 200 3.S 410 5.2 1,060 Discharge, in eecond-feet, water year October 1942 to September 1943 Day Oot. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 58 38 53 d51 174 634 1,470 174 38 59 2 58 i 5 63 51 d52 229 755 771 118 39 59 3 58 10 38 49 d53 258 609 47S 10S 49 58 4 58 10 18 53 d48 276 537 326 170 49 58 5 58 10 21 55 d48 289 572 266 156 51 58 6 58 9.5 42 53 d48 218 634 317 155 52 58 7 58 9.5 48 54 d49 258 671 417 109 51 58 8 56 9 56 56 d55 294 572 478 108 51 59 9 60 4.3 55 53 79 200 478 492 106 51 59 10 59 1.8 55 a 63 107 158 560 492 95 50 59 11 59 1.8 52 a 63 87 139 556 485 90 49 59 12 59 l.S 50 a 53 73 151 478 378 76 49 59 13 59 l.S 50 a 53 70 2S2 430 307 69 48 59 14 58 1.8 50 a 63 70 337 378 523 66 46 58 15 58 2.7 50 53 61 360 307 357 60 44 58 > d50 16 58 4.9 50 54 55 413 254 284 53 48 5S 17 58 12 50 52 55 447 237 256 46 51 5S 18 58 65 51 51 52 461 256 366 43 51 58 19 58 26 52 56 49 471 334 430 38 51 58 20 58 14 52 61 48 434 394 372 36 51 58 21 58 12 52 106 48 397 397 323 38 51 58 22 58 11 52 109 47 451 503 200 34 51 58 30 51 58 23 48 1211 ' 82 d90 47 584 780 194 24 39 116 d42 48 609 912 162 28 51 56 25 39 13 860 d42 56 560 946 153 27 46 56 26 30 11 a40 d43 64 410 863 184 26 63 56 27 20 20 a46 <546 72 421 852 ISO 25 55 56 28 20 19 48 d46 86 1,050 820 180 23 56 56 29 14 15 47 d47 100 541 7EO 188 28 56 54 30 9.5 24 44 d50 109 461 686 184 41 86 53 31 9 48 d48 139 795 47 58 Seoond- Runoff in Month foot-days Maxi.0* MininuB Ms an ao re-feet Ooto 1.508.5 60 9 48.7 2,990 Now 360.4 65 l.S 12.0 715 Oeoertwr...... ,1,566 116 18 50.5 3,110 Calender year 1942 56,448.9 1,030 1.8 155 112,000 Janu 1,738 ,109 42 56 .'l 3,450 February 1,400 50 2,780 Marc 2,026 139 47 66.4 4,020 Apri 1...... 11,283 1,050 139 376 22,380 May. 17,860 946 237 576 35,420 June 11,013 1,470 163 367 21,840 July 2,225 174 23 71.8 4,410 Augu H...... ^...... 1,553 56 38 50.1 3,080 September...... 1,729 59 S3 57.6 3,430 fater year 1942-43 ...... 54,261.0 1,470 1.8 149 107,600 Peak'dlsoh«r«e,. A pr. 28 (6 a.m.) 1,310 seo.-ft.; Hay 24 (11 p.m.) 1,150 seo.-f-.. ) June i,roO sao.-ft. 1 (11 a.m.) a Ho gage-height r neord J discharge computed en basis, of data furnished to Pacific tea & Electric Co. ea Tlae basisi Pacific war tin*. To convert war tine to standard time, subtract 1 hour. STANISLAUS RIVER BASIN 251 South Fork Stanislaus River near Long Barn, Calif. Location.- Water-stage recorder and masonry control, lat. 38°05', long. 120°11', In sec. 2b, T. 3 N., R. 16 E., 600 feet downstream from Lyons Dam, 2 miles west of Long Barn, and 14 miles northeast of Sonora. Altitude of gage, about 4,100 feet (from topographic map). Drainage area.- 67.2 squ&re miles. Kecoras available.- November 1937 to September 1943. Extremes.- naximul discharge during year, 1,560 "second-feet (regulated) June 1 (gage neignt, 6.18 feet); minimum, 0.1 second-foot Aug. 6. 1937-43: Maximum discharge, 2,070 second-feet June 2, 1938 (gage height, 7.14 feet), from rating curve extended above 1,400 second-feet; no flow at times during 1938-39. Remarks.- Records fair. Flow regulated by storage and diversions above station for power ana domestic use, including Lyons Reservoir (capacity, 5,500 acre-feet), Strawberry. Reservoir (capacity, 17,900 acre-feet). Tuolumne Canal (see p. 253) diverts at Lyons Dam; Philadelphia Canal (see following page) diverts 12 miles above station Into basin of Middle Fork Stanislaus River. Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Cc.j ob- tainea fn connection with a Federal Power Commission project. Rating table, water year 1942-43 (gage height, In feet, and discharge, In .second-fe^t) 0.2 0.8 2.0 148 3.5 414 1.0 1.0 2.3 194 4.0 540 3 1.2 2.6 244 4.5 718 9 1.4 2.9 29S 5.0 942 18 1.7 3.2 354 5.5 1,190 Discharge, in second-feet, water year October 1942 to September 1943 Da; Dot. Nov. Dec. Jan. Feb. liar. Apr. May. June . July Aug. Sept. 124 50 157 537 1,230 113 1.6 1,4 2 1.4 1.2 1.4 1.4 91 4S 204 726 971 65 1.6 1.4 S 74 50 242 597 418 15 1.6 1.4 4 61 74 253 494 312 73 1.4 1.2 5 1.4 1.4 1.4 1.4 53 143 278 502 230 89 1.6 1.2 6 1.4 1.4 1.4 1.4 42 221 223 561 205 81 1.6 1.2 49 162 223 608 276 56 1.4 1.2 8 1.4 1.4 1.4 1.4 69 197 232 577 346 25 1.4 1.2 9 l.S 1.4 1.4 1.4 50 340 221 421 380 27 1.4 1.2 10 1.4 1.4 1.4 1.4 38 518 151 47S 382 22 1.4 1.2 11 1.4 1.4 1.4 1.4 42 408 121 512 396 12 1.4 J.2 12 1.6 1.4 1.4 1.4 42 2S9 111 458 344 5.5 1.4 1'.2 13 1.4 1.4 1.4 1.2 43 226 151 414 262 1.4 1.4 1.2 14 1.4 1.4 1.4 1.6 42 246 285 364 233 2.8 .8 1.4 15 1.4 1.4 1.4 1.4 41 210 303 303 266 2.2 d.2 1.4 16 1.4 1.4 1.4 1.4 38 162 354 248 278 1.8 d.l 1.2 17 1.4 1.6 1.4 1.6 35 162 396 221 110 1.6 1.6 1.2 18 1.2 2.0 1.4 1.4 32 175 410 191 54 1-8 1.6 1.4 19 1.2 1.2 1.4 1.4 38 133 416 204 374 1.6 1.6 1.2 20 1.2 1.4 1.4 1.6 24 109 404 296 262 1.8 1.4 1.4 21 1.4 1.4 1.4 187 27 108 356 378 309 1.6 1.2 1.2 22 1.4 1.4 1.4 523 78 109 364 356 130 1,6 1.0 1.2 23 1.4 1.6 1.6 659 79 89 499 580 98 1.6 l.S 1.2 24 1.4 1.4 1.6 311 61 75 561 782 119 1.6 1.4 1.4 25 1.4 1.4 1.4 204 68 71 552 894 64 1.4 1.2 1.4 26 1.4 1.4 l.« 164 65 69 410 839 86 1.4 1.2 1.2 27 1.4 1.4 1.4 164 60 67 330 778 114 1.4 1.4 1.4 28 1.4 1.4 1.4 108 54 74 917 804 101 1.4 1.6 1,2 29 1.4 1.4 1.4 98 98 633 718 109 1.6 1.4 1.4 30 1.4 1.4 1.4 244 102 402 597 111 1.6 2.0 1.4 31 1.4 1.4 191 133 640 1.6 1.6 Seoond- Runoff in Month foot-days Maximum Minimum Mean acre-feet 00 to 43.4 1.8 1.2 1.40 86 Hove 42.4 2.0 1»2 1.41 84 December...... 44.0 1.6 1.4 1.42 87 Calendar year 1942 48,266.8 1,070 .9 132 95,720 Janu 2,881.4 659 1.2 92.9 5,720 Febr 1,510 124 24 53.9 3,000 Hare 4,926 518 48 159 9,770 Apri 1...... 10,209 917 111 340 20,250 May. 16,078 894 191 519 31,890 June 8,570 1,230 54 286 17,000 July 615.3 113 1.4 19.8 1,280 Augu 41.7 2.0 .1 1.35 83 September...... 38.4 1.4 1,2 1.28 76 Water year 1942-43 ...... 44,999.6 ' 1,230 .1 123 89,270 Peak discharge.- Apr. 28 (12:30 p.m.) 1,170 see. -ft. s Hay 25 (9 a.m.) 1,020 seo.-ft.; Jure 1 d Doubtful gage-height record (water below creat of control)} discharge estimated. Time baa IB; Pacific war time. To convert war time to -standard time, subtract 1 hour. 252 STANISLAUS RIVER BASIN Philadelphia Canal near Strawberry, Calif. Location.- Water-stage recorder and concrete control, lat. 38°11', long. 120°03', In sec. 30, T. 4 N., R. 18 ,E., 250 feet downstream-from diversion dam on South Pork Stanislaus River and 3 miles southwest of Strawberry post office. Altitude of gage,, about 4,800 feet (from topographic map). Records available.- October 1939 to September 1943. Extremes.- Maximum dally discharge during year, 57 second-feet Oct. 1-22, July 4, Sept. i-kia; minimum dally, 0.8 second-foot Nov. 10. 1939-43: Maximum dally discharge, 64 second-feet Dec. 11, 1941; ro flow at times during each year except 1943. Remarks.- Records good. Canal diverts water from right bank of South Fork Stanislaus River for power development In Spring Gap power plant of Pacific Gas & Electric Co.; tallrace empties Into Middle Fork Stanislaus River above station at fand Bar Flat. Cooperation.- Wat sr-stage recorder record and one discharge measurement, furnished by Pad lie 73as & Dlectric Co., obtained In connection with a Federal Pov'er Commission project. Discbarge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb.. liar. Apr. May June July Aug. Sept. 1 57 10 ' 36 54 50 53 55 56 54 54 40 57 2 57 10 -44 54 50 54 54 55 50 53 33 57 3 57 12 38 51 51 55 54 53 49 56 49 57 4 57 10 IS 54 52 50 54 54 50 57 49 57 5 57 10 16 55 52 50 54 55 54 64 51 57 6 57 10 41 54 51 50 54 55 56 55 52 57 7 57 10 46 54 51 51 54 55 56 55 51 57 8 57 10 53 54 46 51 54 54 56 55 50 57 9 57 4.9 54 53 49 51 54 54 55 55 50 57 10 57 .S 54 54 50 50 54 56 54 54 49 57 11 57 1.8 53 53 50 48 54 55 54 54 49 57 12 57 1.6 52 55 51 49 54 54 54 53 48 57 13 57 1.5 52 56 52 51 56 54 54 54 47 57 14 57 1.5 52 56 54 49 55 54 55 54 46 57 15 57 3.1 52 55 54 46 54 54 55 54 45 57 16 57 3.4 52 54 54 49 55 54 55 53 48 57 17 57 3.S 52 52 54 51 55 54 55 48 52 57 18 57 42 53 54 54 50 55 54 56 46 52 57 19 57 32 55 54 55 51 55 56 55 41 62 67 20 57 IS 55 50 56 52 54 55 54 37 52 57 21 57 15 54 a48 54 51 54 52 53 4O 62 67 22 57 13 55 a47 52 50 56 54 53 35 52 57 23 50 12 56 46 53 51 56 55 5* SB 52 67 24 41 13 48 44 54 53 54 56 54 30 51 57 25 a41 14 41 44 54 54 53 54 55 28 45 57 26 a33 12 37 45 53 53 52 54 56 27 52 57 27 a20 20 48 48 53 53 54 55 55 26 , 53 67 28 20 21 50 48 52 53 55 54 54 25 54 57 29 16 15 49 49 53 52 54 54 29 54 55 30 11 23 48 52 54 53 54 54 41 54 55 31 10 51 40 54 55 48 55 Second- Runoff in Month f cot-days Maximum Minimum Mean ao re-feet Octo 1,496 57 10 48.3 2,970 Nove 354.4 42 .8 11.8 703 Decsmber...... 1,465 56 16 47.3 2,910 Calendar year 1942 ' 16,210.3 60 0 44.4 32,160 Janu 1,597 56 44 ' 51.5 3,170 Febr 1,463 56 .46 52. 2 2,900 Hare 1,590 65 46 » 61.3 3,150 Apri 1...... 1,636 56 52 54.2 3,230 52 3,350 May. - 1,688 56 64.6 June 1,625 56 49 64.1 3,220 July 1,403 57 25 45.3 2,780 Augu 1,544 55 38 49.8 3,060 September...... 1,706 57 66 S6.9 3,380 Water year 1942-43 ...... 17,555.4 57 .6 48.1 34,820 a No gage-height record; discharge computed on basis of data furnished by faeltlo & * & Blectric Co. Time basis! Pacific war time. To convert war time to standard time, subtract 1 hour. STANISLAUS RIVER BASIN 255 Tuolumne Canal near Long Barn, Calif. Location.- Water-stage recorder and concrete control, lat. 38°05', long. 120°11', In sec. 25, T. 3 N., R. 16 E., 200 feet downstream from Intake, 250 feet downstream from Lyons Reservoir on South Fork Stanislaus River, 2 miles west of Long Barn, and 14 miles north east of Sonora. Altitude of gage, about 4,100 feet (from topographic map). Records available.- October 1937 to September 1943. Extremes.- Maximum dally discharge during year, 52 second-feet June 6-14; minimmr daily, 4.7 second-feet Oct. 19, May 20. 1937-43: Maximum daily discharge, 54 second-feet June 26, 27, Jun y 1, 193Pt no flow at times. Remarks.- Records good. Canal diverts water from left bank of South Fork Stanislaus River for power and domestic supply in vicinity of(Sonora, Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., ob- tainea in connection with a Federal power Commission project. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 21 13 10 15 23 26 26 29 13 33 18 26 ?, 20 13 10 15 24 26 26 29 20 33 18 27 a 20 13 10 15 23 26 26 29 27 33 18 28 4 20 11 10 16 23 26 26 29 37 33 18 29 5 20 10 10 16 25 26 27 29 48 33 18 29 R 20 10 14 16 26 26 27 29 52 33 18 29 7 20 10 20 16 26 26 27 29 52 34 18 29 n 20 10 16 16 26 26 27 29 62 34 ]8 29 9 20 10 16 L6 26 28 27 29 62 33 18 28 10 18 10 15 16 26 21 27 29 52 33 IS 27 11 17 10 16 15 26 19 27 29 52 34 18 26 12 17 10 16 16 26"26 22 27 IS 62 33 ]8 26 13 16 10 15 16 22 27 S 62 24 18 25 14 16 10 15 16 26 22 28 5 62 19 ?0 23 15 16 10 15 16 26 22 26 6 37 17 ?3 22 16 14 10 16 16 26 22 29 6 31 15 T4 20 17 13 10 15 16 26 22 29 5 31 16 ?6 19 18 11 10 15 15 26 22 29 6 33 16 ?4 19 19 4.7 10 16 16 26 22 29 6 34 15 T4 L9 20 11 10 16 IS 36 22 29 4.7 34 16 ?4 19 21 13 10 16 21 '2626 22 29 6.6 33 18 ?4 L8 22 13 10 16 16 22 29 6.6 33 IS ?4 L7 23 13 10 16 16 26 22 29 6.5 33 18 f4 L7 ?4 13 10 16 16 26 22 29 6.6 33 18 ?4 17 25 13 10 16 15 26 24 29 6.6 33 18 ?4 L7 ?fi 13 10 15 16 26 25 29 6.5 33 18 ?6 17 27 13 10 16 16 26 26 29 6.6 33 18 ?6 17 2B 13 10 15 21 26 26 30 6.6 33 18 26 17 18 L7 ;*» 13 10 16 21 26 29 6.6 33 £re 6 30 13 10 16 19 _ 26 29 6.6 33 18 L7 31 13 16 19 - 26 - 6.6 - 18 re ~ Seccnd- runoff in Month foot-days Maximum Minimum Mean sere-feet October...... 21 4.7 15.3 944 November...... 310 13 10 10.3 616 December...... 444 20 10 14.3 881 Calendar year 1942 ...... 7,091.8 62 3.4 19.4 14,O7O 494 21 15 16.9 980 716 26 23 26.6 1,420 March...... 741 28 19 23.9 1,470 836 30 26 27.9 1,660 May...... 441.2 29 4.7 14.2 875 1,143 52 13 38.1 2,270 July- ...... 733 34 16 23.6 1»460 Augu st...... 673 26 18 21.7 1,330 September...... 669 29 L7 22.3 1V 330 Water year 1942-43 ...... 7,676.9 62 4.7 21. O 16,220 Time baslst Pacific war time. To convert war time to standard time, subtract 1 hour. 254 STANISLAUS RIVER BASIN South San Joaquin Canal near Knights Ferry, Calif. Location.- Water-atage recorder, lat. 37°51'20", long. 120°38'15", In sec. 15, T. IS., RTTETE., three-quartera of a mile downstream from head gate at Gooiiwin Dam on Stanialaus River and 4 miles upstream from Knights Ferry. Altitude of gage, 345 feet (from topographic map). Records available.- May 1914 to September 1943. Average discharge.- 24 years (1914-30, 1931-32, 1936-43), 360 second-fset. Extremes.- Maximum daily discharge during year, 992 second-feet May 12, 14; no flow at 1914-43: Maximum daily discharge, 1,070 second-feet July 1-3, 1921; no flow at times each year. Remarks.- Records good except those for periods of no gage-height record and those for low-water periods November and December, which are fair. Canal divirts from right bank of Stanislaus River at Goodwin Dam for irrigation in Oakdale and South San Joaquin irrigation districts. Discharge) in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 345 39 3.0 0 640 0 896 92S 576 800 713 2 310 63 3.0 0 670 0 735 893 977 804 710 3 312 44 3.0 0 6S5 0 731 911 9SO 801 711 4 312 2.2 3.0 0 685 0 734 923 974 800 668 5 312 1.2 2.4 0 670 0 870 934 974 800 613 6 214 0 2.2 0 660 0 923 944 977 809 622 7 187 0 2.2 0 625 0 917 944 980 812 625 ft 194 0 2.0 0 630 0 917 946 982 809 634 9 166 0 2.0 0 665 0 916 946 978 803 634 10 196 0 2.0 0 665 0 944 959 976 805 630 11 190 0 .5 0 636 0 986 978 971 800 625 1S> 173 1.3 1.5 0 510 0 992 976 940 SOO 625 97 4.2 2.4 0 230 16 990 980 S40 800 573 75 4.5 1.1 0 70 40 992 976 851 800 491 15 69 4.5 0 0 0 65 934 976 851 820 487 1ft 65 4.2 0 0 0 198 906 968 850 835 475 17 65 3.9 0 0 0 514 912 977 846 835 464 18 63 3.9 0 0 0 590 954 986 836 S35 462 19 64 3,9 0 0 0 623 971 978 839 835 460 20 64 3.6 0 0 0 685 971 978 826 832 457 ?1 63 3.6 0 0 0 730 976 978 840 769 455 ?S> 62 3.3 0 0 0 877 976 980 837 759 453 33 62 3.3 0 0 0 944 971 983 633 752 451 24 63 3.3 0 0 0 966 965 978 828 744 449 25 61 3.3 0 0 0 966 944 971 828 739 448 2fi 44 3.3 0 0 0 971 959 966 821 734 332 27 44 3.3 0 0 0 986 971 970 818 787 220 SW 44 ' 3.0 0 140 0 977 977 971 818 ' 785 156 29 46 3.0 0 620 _ 959 977 978 814 727 157 30 48 3.0 0 675 _ 966 970 978 811 783 157 31 47 r 0 650 - ~ 977 " 804 717 ~ Month foot-daysSecond- "a*« -«,»,1* , Minimum "8W> acre-feetRunoff in 4,077 345 44 132 8,090 7.19 428 December...... '...... 30.3 3.0 0 .98 60 Calendar year 1942 ...... 145,622.0 ; 994 0 399 288,800 2,066 675 0 67. S 4,140 3,040 685 0 287 15,960 ' 0 0 0 0 0 April ...... 12,073 986 0 402 23,950 May...... 28,858 992 731 931 57,240 28,354 936 80S 962 57,230 27,476 982 804 886 54,500 24,356 835 717 786 48,310 September...... 14,857 713 156 499 29,670 Water year 1942-43 ...... 151,022.1 092 0 414 299,600 JJote.- Ho gags-height record. Jot. 34 to Mar. 4; discharge record furnished by South San Joaquin Irrigation District. Ho gage-height record Aug. 11-13; discharge eoaputed on bnils of recorded range In stage and record of head gate operations. Tims b**lsi Pacific war time. To convert war tine to standard tine, »,,*>ti-,,r..^ 1 h««*- STANISLAUS RIVER BASIN £55 Oakdale Canal near Knights Ferry, Calif. Location.- Water-stage recorder, lat. 37°51'30n , long. 120°38'00", in SEi sec. 10, T. 1 s., R. 12 E., half a mile downstream from head gate at Goodwin Dam on Stanislaus Rivei and 4 miles upstream from Knights Ferry. Altitude of gage, about 350 feet (from . topographic map). Records available.- May 1914 to September 1943. Average discharge.- 25 years (1914-32, 1936-43), 107 second-feet. Extremes.- Maximum dally discharge during year, 388 second-feet May 22; no flow Nov. 2 to Apr. 10. 1914-43: Maximum daily discharge, 402 second-feet July 30, 1938; no flow during periods In each year. Remarks.- Records' good. Canal diverts water from left bank of Stanislaus River at Good- win Dam for irrigation In Oakdale irrigation district. Cooperation.- Gage-height record furnished by Oakdale Irrigation District. Discharge, in second-feet, water year October 1942 to September 1943 flay Oct. Nov. Dec. Jan. Feb. Mar. Apn May June July Aug. Sept. 1 199 54 0 343 384 375 355 316 2 200 , 0 0 343 384 372 35f'35f 316 3 201 0 0 354 384 372 311 4 201 0 0 352 386 372 356 288 5 201 0 0 354 385 371 35f 287 6 123. 0 0 355 385 374 35P 284 7 129 0 0 363 381 376 35f 279 8 130 0 0 375 381 376 35f 272 9 136 0 0 376 380 375 35F 270 10 131 0 0 376 380 375 354 269 11 134 0 21 375 379 375 35f 267 12 128 0 64 377 378 375 355 262 13 114 0 85 376 378 369 35f 206 14 111 0 111 377 380 369 34] 199 15 95 0 161 367 384 367 33f 197 16 85 0 184 372 385 367 334 201 17 81 0 211 376 383 365 32f 212 18 79 0 232 379 383 366 322 211 19 78 0 278 382 378 370 322 209 20 78 0 316 382 378 364 32C 208 21 74 0 322 386 378 367 317 208 22 72 0 354 388 377 366 32? 205 23 75 0 372 387 376 363 320 204 24 75 0 373 387 379 361 32 C 203 25 77 0 372 384 382 361 319 202 26 93 0 373 385 380 360 320 144 27 98 0 344 381 378 360 320 107 28 100 0 280 385 379 360 320 105 29 101 0 326 381 379 359 320 103 30 102 0 321 381 377 358 319 89 31 99 - - 382 - 357 317 - Second Runoff in Month foot-days Maximum Minimum Mean acre-feet October...... 3,600 201 72 116 7,140 November...... 54 54 0 1.8 107 December...... 0 0 0 0 0 Calendar year 1942 ...... 60,210 388 0 165 119,400 January...... 0 0 0 0 0 February ...... 0 0 0 0 0 March...... 0 0 0 0 0 April ...... 5,100 373 0 170 10,120 Bay...... 11,581 388 343 374 22,970 June ...... 11,421 386 376 381 22,650 July...... 11,397 376 357 368 22,610 August...... 10,436 356 31-7 337 20,700 September...... 6,632 316 89 221 13,150 Water year 1942-43 ...... 60,220 388 0 165 119,400 Pacific war time. To convert war time to standard time, subtract 1 hour. 256 CALAVERAS RIVER BASIN Calaveras River at Jenny Llnd, Calif. Location.- Water-stage recorder, lat. 38°05', long. 120°52', In SWi sei. 22, T. 3 N., R. iu E., at bridge on Milton road, a quarter of a mile south of Jenny Llnd and 6$ miles downstream from Cosgrove Creek. Altitude of gage, about 220 feet (from topographic map). Drainage area.- 395 square miles. Becords available.- January 1907 to September 1943. Average discharge.- 34 years (1908-23, 1924-43), 264 Second-feet. Extremes.- Maximum discharge during year, 7,160 second-feet Jan. 22 (gage height, 10.67 reet;; no flow during parts of several months. * 1907-43: Maximum discharge observed, 69,600 second-feet Jan. 31, 1911 (stage was reported higher about midnight); no flow during late summer of most years. Remarks.- Records good. Flow regulated by Hogan Reservoir at Stockton flood-control dam, oy small reservoir on North Fork Calaveras River, by diversion from North Fork Into Mokelumne River Basin, and by diversion from North Fork Stanislaus River Into Calaveras River above station. Discharge, in second-feet, water year October 1942 to Septembe- 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 3.4 0 60 218 2,510 762 490 214 36 35 12 2 3.S ' 0o 51 172 1,560 595 450 190 105 34 11 3 3.6 50 144 705 5OO 335 163 103 33 10 4 5.S 0 52 118 525 505 356 175 89 33 7' 5 4.2 0 55 99 455 1,500 575 171 81 30 4.8 6 4.4 0 50 85 571 5,590 725 160 75 28 3.2 7 4.4 0 55 75 361 4,340 495 155 70 27 2.0 F 4.2 0 70 70 1,350 3,860 425 150 68 29 1.9 9 1.7 0 72 a6S 1,200 3,740 485 144 65 30 1.9 10 .6 .2 65 a 65 790 4,260 450 136 62 27 2.0 11 .2 5.5 60 a6S 59O 4,3OO 361 152 60 25 1.9 1? a. 2 19 a58 a61 480 3,490 324 127 58 24 1.3 13 a. 2 22 a56 a58 410 2,800 292 122 58 23 .9 14 a. 2 23 a55 a56 347 1,980 271 120 56 20 .7 15 a. 2 25 a54 a54 306 1,550 254 lie 56 IB .1 Ifi a. 2 29 a52 a52 275 1,100 238 118 55 ,17'16 0 17 a.l 37 a50 a49 246 1,150 230 120 53 0 IS a.l 1,250 a 48 47 218 2,090 214 118 50 17 0 a.l 1,720 a 47 47 202 1.61O 20O 115 46 17 0 20 a.l 930 a46 46 133 1,140 196 111 45 19 0 0 404 a 45 2, >10 176 942 190 105 42 21 0 0 191 44 5,850 230 1,200 183 97 44 22 0 0 105 186 4,400 495 996 176 91 46 19 0 0 68 1,640 3,500 600 818 171 87 46 17 0 25 0 57 2,240 2,650 2,050 710 168 84 45 17 0 0 49 1,740 1,370 2,220 640 166 81 42 19 0 0 55 872 1,720 1,810 570 163 76 41 17 O oo 0 85 490 1,530 1,160 515 298 75 - 40 16 0 0 111 460 906 . 500 460 70 58 15 0 'Irt 0 85 375 2,350 .. 730 275 69 36 16 0 31 0 279 3,190 - 610 " 70 ~ 17 0 Seccnd- Runoff in Month fcct-days Maximum Hinianm Mean acre-feet 35.7 4.4 0 1.15 71 5,268.7 0 176 10,450 December ...... 9,473 2,240 44 306 13,790 Calendar year 1942 ...... 107,591.9 6,280 0 295 215,400 51, 455 5,850 46 1,015 62,590 21,605 2,510 176 778 42,850 March...... 55,395 5,590 500 1,787 109,900 April ...... 9,626 725 165 521 19,090 May...... 3,732 214 69 182 7,500 1,760 105 36 S6.7 5,490 July...... 698 35 15 22.5 1,380 60.7 12 0 1.96 120 September ...... 0 0 0 0 0 Water year 1942-43 ...... 159,155.1 5,850 0 381 276,000 Peak discharge.- Nov. 18 (3 T>.m.) 4.160 aee.-ft.: Dec. 25 (2 a.m.) 2,710 sec. -ft. 5 Jan. 22 (8 a.m.) 7,160 sec.-ft.; Jan. 30 (4 p.m.) 3,420 see.-ft.; Mar. 6 (StSO p.m.) 5,390 see.-ft.; Kar. 10 fSiSO p.m.) 4,660 seo.-ft. a No gage-height record; discharge computed on basis ot discharge measurements, recorded range in stage, and records for nearby streams. . Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour. CA1AVERAS RIVER BASIN 257 Gosgrove Greek near Valley Springs, Calif. Location.- Water-stage recorder, lat. 38°09', long. 120°50', in SEi sec. 35, T. 4 N., R. 10 K.1 , 0.4 mile upstream from mouth and 2.5 miles south of Valley Springs. Altitude of gage, about 580 feet (from topographic map). Drainage area.- 30.6 square miles. Records available.- October 1929 to September 1943. ^^ Average discharge.- 14, years, 8.62 second-feet. Extremes.- Maximum discharge during year, 1,920 second-feet Nov. 18 (gage helgtt, 6.95 reet;, from rating curve extended above 1,400 second-feet; no flow for sever"! months. 1929-43: Maximum discharge, 2,600 second-feet Feb. 22, 1936 (gage height, 7.80 feet), from rating curve extended above 780 second^feet on basis of velocity-area studies; no flow for several months during each year. Remarks.- Records excellent. No diversion. Rating tables, water year 1942-45 (gage height, In feet, and discharge. In second-feet) NOT. 16 to Jan. 21 Jan. 22 to June 10 t 2.2 2.1 2.S 33 4.2 334 2.0 0.1 2.3 3.1 2,6 16 2.3 3.S 3.0 54 4.S 452 2.1 .2 2.4 6 2-8 32 2.4 6.5 3.3 99 4.8 585 2.2 1.2 2.5 10 3.0 54 2.5 11 3.6 162 Note.- Same as preceding table above 2.6 17 3.9 236 3.0 feet. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Air;. Sept. 1 0 1.5 5.5 29 20 S.5 2.4 0.1 2 0 1.4 4.5 19 14 7.5 2.2 .1 3 0 1.4 3.8 14 12 6.5 2.0 .1 4 0 1.5 3.4 11 34 6 1.9 .1 5 0 1.0 3.0 10 5S4 99 Ii7 .1 6 0 1.1 2.8 9 464 33 1.5 .1 7 0 4.5 2.6 46 62 15 1.2 .1 8 0 2.6 2.6 39 182 13 1.0 .1 9 0 1.8 2.5 21 136 11 .6 .1 10 0. 1.4 2.4 13 120 8.5 .4 .1 '2.2 11 0 1.4 10 64 7 .4 0 12 0 1.2 2.1 8.5 31 6 .3 0 IS 0 1.1 2.0 7 22 5.5 .3 0 14 0 1.0 2.0 6.5 54 5,5 .3 0 IS 0 .9 2.0 5.5 25 5 .3 0 16 0 .9 2.0 5 17 4.8 .2 0 17 0 .8 1.8 4.3 198 4.6 .2 0 18 297 .8 1.6 4.3 80 4.0 .2 0 19 25 .7 1.5 4.3 30 3.7 .2 0 20 5 .7 2.4 4.0 20 3.4 .1 0 21 2.5 .7 475 4.3 28 3.4 .1 0 m 1.7 .9 304 21 29 3.1 .1 0 23 1.3 79 182 17 17 2.8 .1 0 24 1.0 114 44 89 14 2.8 .1 0 25 .8 71 37 801 11 2.8 .1 0 26 .7 15 40 138 10 2.6 .1 0 27 10 8.5 113 74 9 2.8 .1 0 28 5.5 20 29 29 8.5 9.5 .1 0 29 2.8 24 42 - 22 4.8 .1 0 SO 2.0 10 323 - 23 3.1 .1 0 31 - 7 63 10 - .1 - Seoond- Runoff in Month foot-days Maximum Minimum Mean ao re feet 0 0 0 0 355.3 297 0 11.8 705 December...... 377.6 114 .7 12.2 749 Calendar year 1942 ...... 3,943.5 621 0 10.8 7,820 1,684.7 475 1.5 54.3 3,340 843.7 201 4.0 30.1 1,670 March...... 2,348.5 584 8.5 75.8 4,660 April.. .'...... 29S.2 99 2.6 9.84 586 May...... 18.5 2.4 .1 .60 37 1.0 .1 0 .03 2.0 0 0 0 0 Q 0 0 0 0 0 September...... 0 0 0 0 0 Water year 1942-43 ...... 5,924.5 584 0 16. S^ 11,750 Peak discharge.- HOT, 18 (11:30 a.m.) 1,920 see.-ft.; Dee. 24 (10 p.m.) 686 sec.-ft.; Jan. 21 (6 p.m.) 1,450 aec.-ft.; Jan. 30 (11 a.m.) 970 sec.-ft.; Feb. 24 (10 p.m.) 522 sec.-ft.J Mar. 5 (10:30 p.m.) 1,560 sec.-ft. Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour. 258 MQKELUMNE RIVER BASIN Salt Springs Reservoir near West Point, Calif. Location.- Staff gage, lat. 38°30', long. 120°12', In SEi sec. 33, T. 8 N., R. 16 E., at Salt Springs Dam on North Fork Mokelumne River, 2 miles 'upstream from Cold Creek and 18 miles northeast of West Point. Datum of gage is 3,700 feet above mean sea level; gage readings have been reduced to elevations above mean sea level. Drainage area.- 160 square miles. Records available.- March 1931 to September 1943. Extremes.- naximum contents observed during year, 131,000 acre-feet June 1 (elevation, 3,948.6 feet); minimum observed, 34,600 acre-feet Dec. 22, 23 (elevation, 3,817.6 feet). 1931-43: Maximum contents observed, that of June 1, 1943; no contents Jan. 30 to Feb. 5, Feb. 18-26, 1932, Mar. 1-25, 1933. Remarks.- Reservoir is formed by concrete-faced rock-fill dam, completed in 1931; storage began in March 1931. Capacity. 129.500 acre-feet between elevations 3,707.25 feet (powerhouse Intake) and 3,947.0 feet (crest of spillway) above mean see. level. Ad ditional storage of 1,860 acre-feet is available for release to river through outlet' drain at elevation 3,667.75 feet. Water is released through powerhouse Just below dam and discharged into Tiger Creek powerhouse conduit. Records show contents available, at 3 p.m., for use through powerhouse. Cooperation.- Record of contents, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project. Contents, In acre-feet, water year October 1942 to September 1943 Day Oct. MOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sapt. 1 77,200 49,900 41,800 44,400 57,700 69,600 91,600 102,400 131,000 129,500 123,200 106,300 Z 76,200 49,500 41,300 45,000 53,000 69,800 92,100 105,100 130,400 129,400 123,500 105,400 3 75,500 43,500 42,600 45,600 58,200 70,300 92,600 105,100 130,200 129,500 123,600 104,400 4 74,500 47,50O 42,500 45, SCO 58,20O 71,000 93,500 104,900 129,600 129, 5OO 124,300 103,400 5 73,900 46,600 42,200 46,000 58,400 71,300 94,600 1O3.000 129,600 129, 4OO 124,000 102,300 6 72,900 45,600 41,300 46,100 58,800 72,600 95,700 102,000 129,800 129,500 124,000 102,000 7 71,900 44,700 41,400 46,000 59,400 74,100 96,900 101,000 129 ,800 129,500 123,700 101,200 8 71,100 43,700 41,000 45,300 60,000 75,000 93,000 100,700 129,300 129,300 123,400 100,300 9 70,200 42,700 40,500 45,400 60,000 77.20O 98,700 100,100 129,800 129,100 123,000 99,500 10 69,300 41,600 40,000 44,900 60,100 30,600 93,100 100,300 129,300 123,900 122,600 93,700 11 68,300 40,800 39,500 44,500 60,400 S2.50O 97,300 102,200 129,800 128,900 122,200 97,80O 12 67,300 39,800 38 ,"900 44,100 60,600 S3, 300 96,600 104,600 129,800 123,600 121,000 97,000 IS 66,900 38,700 38,400 43,700 60,900 S5.30O 96,300 107,000 129,800 128,200 120,100 96,200 14 65,900 37,800 37,300 43,000 61,500 36,700 93,400 109,500 129,800 127,900 119,000 95,300 15 64,900 36,900 37,300 42,600 62, 100 S3, 200 99,300 108,100 129,800 127,500 118,400 94,300 16 63,900 36,300 36,300 42,100 62,500 89,400 101,200 108,100 129,300 126,600 117,200 93,40O 17 62,900 36,OOO 36,200 41,600 63,OOO 90,100 102,500 109,300 129,300 126,000 116,200 92,700 18 61,900 39,000 35,800 41,000 63,400 90,100 103,600 109,600 129,800 125,7QO 115,100 91,900 19 61,000 40,600 35,400 40,600 63,300 90,000 103,500 110,000 129,300 125,200 114,200 91,500 20 60,000 40,500 35,200 40,20O 64,300 89,800 103,400 111,800 129,800 1?4,6OO< 113,800 91,OOO 21 59,000 40,500 34,900 42,400 65,000 89,700 103,400 113,600 130,000 123,900 112,500 90,100 22 5S , 100 40,400 34,600 47,200 65,70O 88,700 101,200 115,700 130,000 123,500 112,100 S9,40O 23 57,100 40,400 34,600 50,300 66,300 89,900 101,600 119,700 130,000 122,300 111,500 88,500 24 56,300 40,800 38,000 51,800 66,800 86,700 103,000 124,500 129,900 122,100 110,700 87,400 25 55', 4 00 40,000 39,300 52,800 67,100 38,700 104,600 129,100 139,800 121,700 110,100 36,300 26 6*,800 40,8OO 40,000 53,100 68,000 88,200 103,800 130,000 129,700 121,400 109,700 S5,40O 27 64,000 41,200 40,700 54,400. 68,5OO 39,000 101,600 130,000 129,700 121,000 109,000 84,600 28 53, §OO 41,700 41,600 55,100 69,200 89,400 104,100 130,000 129,500 120,6CO 108,400 83,600 29 52,300 41,900 42,600 55,700 9O,50O 103,800 130,000 139,600 120, SCO 108,10Qj 82,700 30 51,800 42,100 43,400 56,500 - 91,900,, 101,700 129,900 129,600 121, 6CO 107,500 81,600 31 50,800 43,900 57,200 - 93,000 - 130,800 - 122,500 107,000 - Monthly elevation and contents, water year October 1942 to September 1943 Elevation Contents Change In Garments Date during month (feet)t (acre-feet) (acre-feet) 3,886.3 73,300 3,846.5 50,800 -27,500 3,831.7 42,100 -8,700 3,834.9 43,900 +1,800 - - -7,900 3,856.6 ' 57,200 +13,300 3,874.0 69,200 +12,000 3,905,1 93,000 +23,800 3,915.6 101,700 +8,700 3,948.3 130,800 +29,100 3,947.1 1)39,600 -1.2OO 3,939.3 122,500 -7^100 3,921.8 107,000 -15,500 3,890.7 81,600 -25.4OO -' - +3,300 t Elevation at 3 p.m. tractTime * basis;' Pacific war time . To convert war tine to standard time, MOKELUMNE RIVER BASIN 259 North Fork Mokelumne River below Salt Springs Dam, Calif. Location.- Water-stage recorder, lat. 38°29', long. 120°13', In SW£ sec. 33,T. 8 N., R. 16 E ., 0.3 mile downstream from Salt Springs Dam and 1.7 miles upstream from Cold Creek. Altitude of gage, about 3,600 feet (from topographic map). Drainage area.- 160 square miles. Records available.- September 1926 to September 1943. Average aisctiargeT- 16 years (1927-43), 438 second-feet (combined flow of North Fork noKeiumne River and Tiger Creek powerhouse conduit). Extremes.- Maximum discharge during year, 6,360 second-feet (regulated) June 1 (gage neigtrc, 13.0 feet); minimum, 1.5 second-feet Nov. 13, 14, Dec. 17-21. 1986-43: Maximum discharge, 8,740 second-feet Mar. 25, 1928 (gage helfht, 15.62 feet, present datum), from rating curve extended above 4,000 second-feet; minimum, 0.2 second-foot Mar. 31, 1931. Remarks.- Records good above 50 second-feet and fair below. Flow regulated lv Salt springe Reservoir (see-preceding page), and diversion in Tiger Creek powerhouse conduit (see p. 264). Cooperation.- Water-stage recorder graph and one discharge measurement, furnished by paciric Gas & Electric Co., obtained In connection with a Federal Power Commission project. Rating tables, water year 1942-43 (gage height. In feet, and discharge, In second-feet) Oct. 1 to June 1 June 2 to Sept. 30 1.4 0.9 2.6 50 4.5 432 S.O 2,100 1.5 2.4 2.3 SO 1.6 2.7 2.9 78 5.0 610 9.0 2,80O 1.7 6.5 2.6 51 1.8 7 3.2 116 5.5 815 10.0 3,560 1.9 13 2.9 78 2.0 13 3.6 1S4 6.0 1,040 12.0 5,360 2.1 20 2.3 28 4.0 280 7.0 1,530 . Hote.- Same as preced ing table above 2.9 feet. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 6 2.3 2.0 2.7 7.5 6 511 1,940 5,110 12 7.5 6 2 6 2.3 2.1 2.7 6 6 572 1,950 2,340 10 7.6 6 3 6 2.5 2.0 2.6 5 6 630 2,520 1,660 9 7.5 6 4 5.5 2.1 S.O 2.6 5 6.5 522 2,650 1,280 9 7.5 6 5 5.5 2.1 1.9 2.5 4.8 9 559 2,650 1,090 9 7.5 6 6 5.5 2.1 2.0 4.3 5 12 356 2,650 959 9 7.5 6 7 5 2,0 2,0 2.5 r 9 356 2,650 1,180 9 7.5 6 6 5 1.9 1.9 2.2 7 12 356 2,030 1,260 S.5 7.5 5.5 9 5 1.7 1.9 2.1 5.5 16 4S2 1,950 1,630 8.5 7.5 5 10 5 1.7 1.7 2.0 5 21 788 1,520 1,460 S 7.5 5 11 4.8 1.6 1.7 2.0 5.5 16 738 ' 842 1,520 8 7.5 4.8 12 4.5 1.6 1.7 1.9 5.5 12 604 670 1,240 8 7.5 4.8 13 4.1 1.5 1.7 1.9 5 12 308 670 977 e 7.5 4.8 14 5 13 305 670 972 S 7.5 4.8 15 4.0 1.9 1.7 1.7 4.S 12 302 469 1,020 S 7.5 4.5 16 3.6 1.7 1.6 1.6 4.5 12 747 473 1,140 8 7.5 4.5 17 3.4 5 1.5 1.6 4.3 300 662 630 1,240 S 7.5 4,2 18 3.4 11 1.5 1.6 4.1 507 1,240 670 1,390 8 7.6 4.0 19 3.4 5.5 1.5 1.6 4.1 507 1,730 626 1,360 S 7.6 4.0 20 3.6 3,2 1.5 3.1 4.1 507 1,690 686 1,200 S 7 4.0 21 3.6 2.5 1.5 33 4.1 507 1,680 686 979 8 7 4.0 22 3.6 2.3 1.7 24 6 507 1,790 638 725 S 7 4.0 23 3.6 2.2 4.1 29 5.5 507 1,810 467 626 S 7 3.8 24 3.4 2.1 7 15 6 507 1,470 702 574 S 6.5 3.7 25 3.4 2.1 6.5 11 7 504 1,470 910 635 8 6.5 3.4 26 3.4 2.0 4.1 9.5 6.5 504 1,940 2,840 472 7.5 6.5 3.0 27 3.4 2.5 3.6 9 6.5 500 2,080 3,020 169 7.5 6.5 8.7 28 3.1 2.2 4.0 S 6.5 500 2,410 2,960 40 7.5 6.5 2.6 29 2.6 2.1 4.0 S.5 543 2,390 2,520 137 7.5 6.5 2.6 30 2.6 2.1 3.4 13 518 2,600 2,090 15 7.5 6.6 2.6 31 2.5 3.1 9.5 514 2,790 7.5 6,5 Second- uo.r. Runoff in Month foot-days Maximum Minima "*"B acre-feet Octo her...... 188.6 6 2.5 4.15 255 Hove 77.3 11 1.6 2.f9 153 DaceBber...... 7S.6 7 1.5 2.P4 156 Calendar year 1942 137,583.3 3,380 1.5 377 2*72,900 Janu ary 214.4 33 1.6 6. £2 485 Febr 152.8 7.5 4.1 5.46 303 Marc 7,612.5 543 6 246 15,100 Apr! 1...... 33,008 2,600 3O8 1,103 65,660 Bay. 48,539 3,020 467 1,566 96,280 June 34,400 5,110 15 1,147 68,230 July 2.57.0 12 7.5 S.f9 510 Augu St...... 222.5 7.5 6.5 7.18 441 Septsaber...... 134.3 6 2.6 4.48 266 ffater year 1942-43 ...... 124,915.0 5,110 1.5 342 247.800 Peak discharge.- May 28 (1 a.m.) 3,780 sec. -ft.; June 1 (11 a.m.) 6,360 sac. -ft. 260 MOKELUMNE RIVER BASIN Mokelumne River near Mokelumne H1H, Calif. Location.- Water-stage recorder, lat. 38°18'40", long. 120°43'10", In sec. 1, T. 5 N., R. 11 y., at highway bridge, 1.2 miles northwest of Mokelumne Hill and 8 miles down stream from confluence of North and South Porks. Altitude of gage, about 650 feet (from topographic map). Drainage area.- 538 square miles. Records available.- November 1927 to September 1943. Average discharge.- 15 years (1928-43), 900 second-feet. Extremes.T Maximum discharge during year, 12.800 second-feet June 1 (gage height, 12.36 feet); minimum, 87 second-feet (regulated) Dec. 21. 1927-43: Maximum discharge, 23,300 second-feet Mar. 25, 1928 (gage height, 16.10 feet), from rating curve extended above 10,200 second-feet on basis of velocity-area studies; minimum, 14 second-feet Oct. 27, 1929. Remarks.- Records excellent. Plow regulated by Salt Springs Reservoir, several smaller reservoirs, .three power plants, and several diversions above station. Rating table, water year 1942-43 (gage height. In feet, and discharge, in secqnd-feet) 2.3 262 3.4 765 5 0 1,970 7.0 4,340 2.5 332 3.S 1,010 5 5 2,490 S.O 6,770 2.6 452 4.2 1,280 6 0 3,080 9.0 7,340 3.1 596 4.6 1,600 6 5 3,690 9.9 8,780 Discharge, in second- feet, water year October 1942 to September 1943 - Day Oct. NOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 483 465 612 496 1,600 1,130 2 ,030 4,050 8,720 777 259 483 2 628 296 730 645 1,600 1,130 2 ,040 4,110 4,340 S79 4156 596 3 670 660 866 510 1,370 1,090 2 ,160 3,910 2,780 777 4196 549 4 325 667 713 554 1,300 1,110 1 ,960 4,310 2,140 742 4118 549 5 474 601 650 5&0 1,240 2,500 2 ,1SO 4,080 1,SOO 650 612 487 6 575 591 639 591 1,080 4,440 1 ,950 4,110 1,490 596 607 444 7 591 549 713 67S 1,060 2.7SO 1 ,910 4,080 l.SOO 560 380 544 8 560 465 656 724 ,270 3,010 2 ,250" 3,500 1,900 5S6 591 554 9 570 506 628 719 ,300 5,520 2 ,000 2,970 2,340 639 339 560 10 62O 601 690 684 ,130 7,85O 2 ,170 2,890 2,140 601 628 675 11 465 530 724 690 ,090 4,960 2 ,090 2,170 2,260 461 654. 549 12 478 544 713 719 ,130 3,790 2 ,O90 1,820 1,930 620 539 492 13 601 564 639 713 ,060 3,180 1 ,900 1,690 1,600 661 52S 487 14 586 601 623 724 855 2,980 2 ,280 1,620 1,490 618 <329 584 15 686 596 673 707 1,000 2,670 2 ,140 1,400 1,470 646 686 686 '2 16 601 470 678 724 1,080 2,200 ,670 1,200 1,640 639 680 607 17 001 1,020 656 634 1,030 8,580 2 ,840 1,210 1,760 001 980 620 18 492 3,860 634 666 997 2,730 2 ,840 1,340 1,910 610 346 496 19 544 1,500 506 661 997 2,460 3 ,550 1,430 1,960 461 565 307 20 586 990 410 753 1,020 2,350 3 ,520 1,450 1,710 549 660 276 21 591 689 251 6,090 952 2,260 3 ,260 1,690 1,416 618 660 660 22 660 436 623 6,200 1,200 2,250 3 ,250 1,590 1,130 506 148 496 23 665 666 971 5,080 1,350 2,160 3 ,520 1,600 971 61S 574 660 24 510 707 2,910 3/340 1,110, 2,060 3 ,420 2, ISO 909 601 192 656 25 386 680 1,380 2,270 1,420 2,170 2 ,9SO 2,160 843 461 515 680 26 406 338 903 1,930 1,280 2,100 3 ,210 3,660 S49 276 410 474 27 539 620 763 1,900 1,260 2,010 3 ,770 4.800 719 878 1>44 448 28 410 713 719 1,490 990 1,970 6,440 4,220 9O3 SOI 4178 664 29 483 365 736 1,390 .. 2,310 4 ,290 3,690 837 374 565 474 SO 874 468 742 2,620 _ 2,240 4 ,160 2,890 766 325 507 625 31 394 - 660 2,190 _ 2,050 .. 8,830 - 369 4136 _ * Seooud- Runoff in Hoath foot-daye M^u. Minimm Mean aore-fe*t October...... 16,964 628 388 51S 31,640 Hoveaber...... '...... 21,418 3,860 296 714 42,480 Deoeaber ...... 23,686 2,910 251 764 46,960 Calendar year 1942 ...... 600,415 7,280 183 1,371 992,600 January...... 46,562 6,200 496 1,602 98,360 February ...... :... 88,661 1,600 656 1,166 64,760 March...... 83,830 7,860 1,090 2,704 166,900 April...... 84,760 6,44O 1,900 2,826 168,100 Ifevay...... 84,890 4,310 1,200 2,736 168,400 56,406 S,720 719 1,880 111,900 July...... :... 17,483 879 876 664 34,6BO August ...... 16,279 650 269 586 32,290 September...... 15,522 666 876 617 30,790 Water -year 1942-43 ...... 499,440 8,720 251 1,368 990,700 Pacific war tine. To convert war tine to utandard tlae, fubtraot 1 hour. MOKELUMtE RIVER BASIN 261 Mokelumne River at Lancha Plana, Calif. Location.- Water-stage recorder, lat. 38°13 f 25", long. 120053 I 20", in SWi sec. 4, T. 4 N., R. 10 E., 1 mile east of Lancha Plana, 3 miles downstream from Pardee Da-n, and 5 miles upstream from Camanche Creek. Datum of gage Is 158.95 feet above mean sea level (levels by East Bay Municipal Utility District). Drainage area.- 584 square miles. Records available.- June 1926 to September 1943. Average qiscnarge.- 14 years (1929-43, since start of East Bay aqueduct diversion), 867 second-feet. Extremes.- Maximum discharge during year, 5,960 second- feet June 2 (gage height, 9.20 reet); minimum, 145 second-feet (regulated) Nov. 22. 1926-43: Maximum discharge, 27,300 second-feet Mar. 25, 1928 (gage height, 19.65 feet), from rating curve extended above 15,500 second-feet on basis of velocity-area studies; minimum, 5.5 second-feet Nov. 21, 1929. Remarks.- Records excellent. Flow regulated by Pardee and Salt Springs Reservoirs, several smaller reservoirs, four hydroelectric plants, and several diversions above station. East Bay Municipal Utility District aqueduct Is largest diversion not returned to river above station. Rating table, water year 1942-43 (gage height, In feet, and discharge, In second-feet) 1.8 145 3.4 7BO 5.5 8,230 2.0 191 3.8 950 6.0 B,660 8.3 27S 4.B 1,2BO 7.0 3,600 _ 3.6 876 4,6 1,610 S.O 4,640 3.0 650 5.0 1,820 9.0 5,740 Discharge, in second- feet, water year October 1948 to September 1B43 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 65O 690 ass 993 2,030 1,460 2 ,380 3,360 3,600 640 640 536 2 660 690 593 1,580 B.430 1,470 2 ,030 3,360 5,3SO 675 545 603 3 660 680 591 1,600 1,670 1,280 1 ,820 3,570 3,960 736 545 582 4 655 690 592 1,580 1,210 1,180 1 ,840 3,040 3,34O 695 546 604 5 650 690 692 1,580 1,210 1,710 1 ,8SO 2,SSO 2,090 645 650 420 6 650 690 415 1,570 1,210 4,830 1 ,840 2,360 1,440 630 650 326 7 650 690 565 1,580 1,1SO 4,000 1 ,830 2,870 1,440 625 560 535 8 655 690 594 1,580 1,180 2,650 1 ,830 2,870 1,450 630 550 660 9 660 690 751 1,580 1,130 4,110 1 ,330 2,88O 1,720 630 550 666 10 660 690 1,480 1,580 1,160 4,950 1 ,83O 2,860 2,3BO 630 650 666 11 660 686 1,510 S43 1,140 4,620 1 ,860 2,860 1,280 630 650 665 12 655 690 1,900 657 1,140 4,760 1 ,830 2,730 1,560 630 650 603 13 655 690 1,910 545 1,150 4,750 1 ,81O 2,240 1,500 630 650 530 14 655 690 1,S90 560 S19 4,400 1 ,810 1,840 1,260 630 655 665 15 660 690 1,890 690 690 4,680 2 ,140 1,830 1,270 635 655 670 16 665 690 1,730 685 690 2,SOO 2 ,390 1,680 1,280 640 587 670 17 d665 700 578 292 996 2,180 2 ,390 1,680 1,480 640 674 670 18 d665 689 587 660 1,190 2,730 2 ,360 1,290 1,570 640 564 647 19 d665 659 594 600 1,180 1,840 2,610 1,150 1,840 640 580 158 20 d665 626 362 619 1,180 1,840 3 ,330 1,15O 1,720 640 581 636 21 d670 626 577 1,280 1,060 2,180 5 ,330 1,150 1,280 640 580 665 22 d670 430 595 5,050 970 2,370 3,33O 1,290 1,150 635 381 670 23 d670 607 604 4,950 950 2,390 5 ,330 1,440 1,03O 640 661 679 24 d675 620 597 3,9BO 970 2,380 3 ,35O 1,630 866 640 679 621 25 d675 62S 226 5,120 1,320 B,370 5 ,400 1,870 736 586 579 670 *O9fi d675 235 590 3,540 1,510 2,570 3 ,340 2,040 753 630 578 266 27 d675 63S 493 3,550 1,500 2,570 3 ,360 2,400 736 635 578 586 28 d680 603 670 3,550 1,460 B,370 3,370 2,410 690 635 582 572 29 d630 416 675 1,880 - 2,390 3 ,370 2,410 726 635 551 543 30 d690 603 565 1,680 - 2,370 Z ,360 2,410 764 635 539 552 31 690 - 544 1,920 - B.370 - 2,590 - 635 645 - Seoond- Runoff in Month foot-days Maximum Minimum Mean acre-feet October ...... '...... 20,600 690 650 665 40,860 November...... 19,105 700 235 637 37,890 December...... 25,348 1,910 226 834 51,270 Calendar year 1942 ...... 485,808 / 5,120 172 1,331 963,600 January...... 55,714 5,050 292 1,797 110,600 February ...... 34,375 2,430 690 1,228 68,180 March...... SS.S70 4,950 1,180 2,851 176,800 April ...... 75,170 3,400 1,810 2,50f 149,100 May...... 70,340 3,370 1,150 2,269 139,500 June ...... 50,231 5,380 690 1,674 99,630 July...... 19,837 736 586 '596640 39,350 August...... 18,464 655 281 36,620 September ...... 16,921 670 158 56* S3, 560 Water year 1942-45 ...... 494,975 5,380 158 1,356 981,800 d Doubtful gage-height record; discharge computed on basis of record for station near Clements? Time basis; Pacific war time. To convert war time to standard time,, subtract 1 hour. 362 MOKELUMNE RIVER BASIN Mokelumne River near Clements, Calif. Location.- Water-stage recorder, lat. 38°12'25", long. 121°05'20", In NW* sec. 15, T. 4 N., R. 8 E., 700 feet upstream from highway bridge, 1 mile north of Clements, and 3 miles downstream from Murphy Creek. Datum of gage Is 67.16 feet above mean sea level (levels by East Bay Municipal utility District). Drainage area.- 630 square miles. Kecoras available.- October 1904 to September 1943. Average discharge?- 24 years (1904-28), 1,110 second-feet; 14 years (192.9-43), 874 second- reet.(Storage and diversion by East Bay Municipal utility District began Jferch 1929.) Extremes.- Maximum discharge during year, 9,360 second-feet Mar. 10 (gag<* height, 15.22 reet;, from rating curve extended above 5,800 second-feet; minimum, 146 second-feet (regulated) Sept. 20. ' 1904-43: Maximum discharge, 25,600 second-feet Mar. 25, 1928 (gage height, 22.45 feet, site and datum then In use), from rating curve extended above 4,600 second-feet and verified by comparison with records for Mokelumne River at Lancha Plana; no flow July 9, Aug. 15, 20-23, 1924. Remarks.- Records excellent. Diversions and storage above station. Rating tables, water year 1942-43 (gage height, In feet, and discharge, in second-feet) Oct. 1 to Mar. 10 Kar. 10 to Sept. 30 2.S 332 4.5 930 6.0 2,990 2.7 302 5.0 1,270 3.2 452 5.O 1,1S2 10.0 4,350 3.0 396 6.0 1,830 3.6 530 6.0 1,740 11.0 5,120 3.4 538 e.o 3,050 4.0 720 7.0 2,340 11.6 6,530 3.5 702 10.0 4,450 4.4 970 10. S 5,O20 Discharge, in second-feet, water year October 1942 to Septeober 1943 Day Oct. Hoy. Dec. Jan. Feb. Mar. Apr. May June JUl1' Aug. Sept. 1 631 670 594 791 1,940 1.460 2,380 3,340 3,060 6^3 647 506 ?, 631 670 590 1,520 2,330 1,470 2,130 3,340 5,560 631 647 594 a 64S 666 587 1,550 1,850 1,340 1,840 3,340 4,410 7^0 647 553 694 4 648 677 583 1,660 1,220 1,200 1,S50 3,100 3,360 715S">6 692 5 645 677 5SO 1,550 1,210 1,660 1,960 2,620 2,610 656 474 6 641 677 494 1,550 1,200 4,720 1.S90 2,610 1,540 6""5 660 395 7 641 677 500 1,550 1,190 4,730 1,860 2,830 1,630 636 664 389 8 645 677 587 1,550 1,180 2,830 1,850 2,830 1,530 635 668 652 9 645 677 614 1,550 1,180 3,930 1,860 2,840 1,670 6TS 664 660 10 648 677 1,400 1,560 1,170 6,530 1,660 2,840 2,270 639 664 660 11 652 673 1,450 1,030 1,150 5,000 1,830 2,620 1,640 635, 664 660 12 652 673 1,790 691 1,160 4,890 1,680 2,600 1,410 6«S 668 501 13 652 677 1,880 516 1,160 4,640 1,850 2,380 1,690 6<7 668 519 14 652 680 1,860 561 949 4,650 1,840 1,890 1,360 @W. 668 660 15 652 680 1,860 684 702 4,690 2,060 1,870 1,340 6<7 673 673 16 655 684 1,860 664 695 3,580 2,380 1,900 1,350 6"«5 586 677 17 655 706 675 374 S75 2,240 2,390 1,810 1,500 6^5 570 677 18 655 766 580 606 1,190 3,110 2,370 1,420 1,660 636 558 673 19 655 643 590 597 1,190 1,980 2,460 1,220 1,810 6^ Second- Runoff in Month fcct-days Maxima UiniBua Mean acre-feet 20, 227 670 631 652 40, 120 357 635 37,730 December ...... 25, 760 1,880 408 S31 51,090 Calendar year 1942 ...... 484,680 5,900 312 1,328 961,300 57,218 5,480 Z74 1,846 113,500 34,959 2,380 696 1,249 69,340 March...... 92,670 6,530 1,200 2,989 183,800 April...... 76,220 3,360 1,640 8,507 149,200 May...... 70,770 3,340 1,210 2,883 140, 400 June 52,311 5,560 702 1,744 103,300 July 20,127 780 690 646 39,920, 18,509 673 372 597 36,710 September...... 16,698 677 306 867 33,120 , Water year 1942-45 ...... 503,516 6,530 306 1,379 998,800 Pacific war time. lo eottrort war tine tc stv&dard tine, subtract 1 hour. MOKELUM® RIVER BASIN 263 Mokelumne River at Woodbrldge, Calif. Location.- Water-stage recorder, lat. 38°09'3011 , long. moiS'lO", In NEi sec. 34, T. 4 N., R. 6 E., at Woodbrldge, three-eighths of a mile downstream from dam and canal In take of Woodbrldge Irrigation District. Datum of gage is 14.9 feet above mean sea level (levels by East Bay Municipal Utility District). Drainage area.- 644 square miles. Records available;- my 1924 to September 1943 (for 1924 and 1925, low-water records only). Average discharge.- 14 years (1929-43), since start of diversion through East Fny Munic- pal utility District aqueduct, 722 second-feet. Extremes.- Maximum discharge during year, 5,190 second-feet Mar. 11 (gage heigt \, 23.08 reet): minimum, 123 second-feet (regulated) Aug. 24, 30. 1924-43: Maximum gage height, 26.58 feet, datum then In use (about 30.6 feet, present datum), Har. 26, 1928 (discharge not determined); minimum discharge, 0.9 second-foot (regulated) Sept. 3, 1924. Remarks.- Records excellent October to April and good thereafter, except those for period of ho gage-height record, which are fair. Flow regulated by storage, power plants, and many diversions above station. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. NOV. Dec. Jan. Feb. Mar. Apr. May June July Au*. Sept. 1 423 468 575 590 1,900 1,460 2,450 3,810 2,170 407 304 234 2 428 504 572 1,080 1,900 1,460 2»450 3,220 2,970 292 281 220 3 423 492 572 1.360 2,300 1,450 2, ISO 3,230 4,330 360 268 250 4 45S 478 570 1,430 1,800 1,870 2,000 3,840 3,SSO 392 266 262 5 450 4S6 564 1,440 1,450 1,260 1,990 2,930 3,150 346 261 269 6 43S 48S 556 1.450 1,330 2,120 2,040 2,700 2,120 28S 273 208 7 430 490 442 1,460 1,340 3,810 1,970 2,660 1,400 273 355 179 R 430 490 547 1,460 1,310 4,120 1,950 2,590 1,340 269 338 180 9 417 504 561 1,470 1,290 3,310 1,930 2,610 1,580 263 326 260 10 415 662 87S 1,480 1,270 4,130 1,820 2,600 1,490 269 302 311 11 423 564 1.270 1,390 1,260 5,100 I y 920 2,550 1,820 286 292 M6 12 432 640 1,390 842 1,230 4,860 1,920 2,520 1,160 280 228 3ll 15 434 640 1,620 660 1,230 4,730 . 1,900 2,460 1,340 274 261 222 14 432 588 1,710 620 1,210 4,750 1,880 2,000 1,220 269 266 247 15 426 653 1,710 662 912 4,630 1,330 1,720 1,060 269 360 326 16 442 549 1,720 704 832 4,670 2,130 1,650 1,040 27S 299 344 17 464 632 1,330 612 S10 3,770 2,340 1,630 1,060 313 268 356 Ifi 454 794 733 391 1,120 2,910 2,390 1,350 1,120 349 258 362 19 446 S73 655 500 1,200 3,080 2,370 975 1,230 329 260 324 20 436 763 61S 600 1,200 2,400 2,460 892 1,450 319 265 176 21 396 653 456 620 1,200 2,190 2,720 842 1,310 281 862 179 22 417 605 601 1,500 1,090 2,390 3,160 S27 965 288 253 274 5!3 450 503 63O 4,000 1,070 2,540 ' 3, 170 1,010 882 299 136 308 452 603 660 4,500 1,090 2,640 3,190 1,060 72? 302 ieo 295 25 452 616 640 4,000 1,120 2,520 3,190 1,190 542 288 196 510 26 454 587 353 3,500 1,440 2,510 3,210 1,430 482 274 808 293 27 460 361 557 3,800 1,560 2,480 3,180 1,520 521 283 211 193 28 470 582 571 3,800 1,500 2,480 3,240 1,780 476 278 212 29 474 575 676 3,500 2,480 3,240 1,970 417 223 217 283 30 474 448 623 2,200 w 2,480 3,240 1,970 424 218 276 31 462 564 1,900 - 2,460 1,980 ~ 268 172 ~ Seoond- Runoff in Month foot-days Maximum Minima Mean acre-feet Novenber December...... 24,924 1,720 353 804 49,440 Calendar year 1948 ...... 430,061 4,900 64 1,178 853,000 i fws w*n May...... 3,24ff 43,432 4,330 417 1,448 9,117 407 21S 7,853 360 136 September ...... S,023 362 176 267 15,910 Water year 1942-43 ...... 442, S63 5,100 136 1,213 678,600 Hot*.- Ho gage-height record Jan. 19 to Feb. 3; discharge computed on basis of recorded range In stage and records for station near Clements. Tlae basis; Pacific war time. To convert war time to standard time, subtract 1 hour. 264 MOKELUMNE RIVER BASIN Tiger Creek powerhouse conduit below Salt Springs Dam, Calif. Location.- Water-stage recorder and concrete control, lat. 38°30', long. 120°13', In swt sec. 33, T. 8 N-, R. 16 E., 1,000 feet downstream from Salt Springs Dam and power house. Altitude of gage, about 3,700 feet (from topographic map). Records available.- June 1931 to September 1943. Average discharge.- 12 years, 241 second-feet. Extremes.- Maximum dally discharge during year, 575 second-feet July 1; no. flow at times. 1931-43: Maximum daily discharge, that of July 1, 1943; no flow at times during each year. Remarks.- Records excellent. Conduit conveys water'of North Fork Mokelumne River from taiiraee of Salt Springs powerhouse to forebay of Tiger Creek powerhouse, picking up water en route from Bear River and several snail creeks. Cooperation.- Water-stage recorder graph and one discharge measurement, furnished by Pacirie uas & Electric Co., obtained In connection with a Federal Powf»r Commission project. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 492 345 333 15 115 132 149 1.1 4.5 575 303 420 2 494 351 254 3 174 123 116 .9 2.8 409 409 445 3 496 520 216 5.5 175 99 113 4.2 0 474 290 439 4 231 517 319 S3 199 39 101 5 0 437 496 432 5 494 514 350 93 129 18 39 5 0 4^2 496 313 6 494 512 346 205 17 18 S3 5 0 412 470 396 7 494 510 361 277 18 IS 93 5 0 4i4 523 442 8 494 506 379 336 194 18 96 1.5 0 4n 510 438 9 496 468 389 364 204 18 139 1.5 0 4M> 523 403 10 , 502 494 393 365 162 17 175 5 0 416 523 412 11 252 496 395 365 145 16 222 5 0 2394-X3 523 426 12 499 492 395 378 149 16 266 5 0 526 409 13 506 526 395 389 127 16 290 5 0 4*? 528 424 438 14 512 542 395 391 6.5 16 298 4.8 0 4-52 533 468 15 520 340 393 389 140 16 294 4.8 0 419 466 4<<4 16 516 522 396 386 143 16 290 4.8 0 '517532 414 17 508 361 399 392 137 15 283 4.6 0 418 379 18 502 24 273 386 144 40 285 4.5 0 3<« 490 364 19 520 279 277 350 155 67 267 4.6 0 4SO 496 98 20 520 241 200 330 111 49 2S7 4.6 0 418 478 387 ' 8 6 ' 21 487 222 278 124 40 292 0 4^6 372 418 471 177 323 9.5 70 t 76 179 6'. 6 0 4TO 136 464 n't22 4-5S &o 491 2S6 175 11 60 128 77 4.2 0'0 . see , 499 24 444 174 14 11 78 142 51 6 4?6 S30 ' 511 25 314 170 15 32 80 1B7 .7 4.6 0 804 895 496 - 894 *TOOfi 505 19 16 22 85 86 387 4.2 0 2*>«£73 364 27 397 116 15 22 96 34 544 7 293 316 488 28 409 70 ' 16 20 16 20 201 5- 468 311 331 482 29 351 16 14 SO 13 4.2 .7 463 878 166 464 30 351 219 15 so ; _ 44 5 .5 582 sto 874 484 31 616 16 29 49 ~ 8.6 J 883 310 '" Second- Runoff in Month foot-days Maximum Minimum Mean aore-fe«t October...... 14,278 520 231 461 88,320 November...... 10,038 542 16 335 19,910 December ...... 7,757 399 14 260 15,390 * Calendar year 1942 100,099.4 558 0 274 198,500 January...... 5,807.0 392 6.5 187 11,580 February...... 3,159.5 204 6.5 113 6,270 March...... 1,493 148 e 48.2 2,960 April ...... 5,646.9 644 .7 188 llySOO May.Bf«» ...... 126.0 , 7 .6 4.06 860 June ...... 1,747.3 522 0 58.8 5,470 July 12,441 676 204 401 24,680 August ...... 12,775 532 1S6 412 26,340 September ...... 12,065 511 98 482 86,120 Water year 1942-43 ...... 87,953.7 676 0 241 174,400 Time basis! Pacific war tine. Tc convert war time to standard time, aubract 1 hour. MOKELUMNB RIVER BASIN 265 Cold Creek near Mokelumne Peak, Calif. ,Location.- Water-stage recorder, lat. 38°31', long. 120°13', In sec. 28, T. 8 N., R. 16 ' BT7~ST4 miles upstream from mouth and 6 miles southwest of Mokelumne Peak. Altitude of gage,- about 6,000 feet (from topographic map). Drainage area.- 23 square miles. Rec6M8 avanaole.- July 1927 to November 1942. Average didcMrgeT- 15 years, 1927-42, 58.3 second-feet. Extremes._-.- iyii'/--4y:i. , **,. PbxlmumLKLAijuum dischargeU10V.1UU&0, 4,100' " second-feet J "" Dec. 11, 1937 (gage height, _.-_ feet), from rating curve extended above 1,,QOO second-feet on basis of velocity- area and AW studies; practically no flow Aug. 17 to Oct. 7, 1931. Remarks.- Records good prior to Nov. 28, fair thereafter. Discharge for period Dec. 1 *to sept. 30 not computed (no gage-height record Dec. 1 to Jan. 3 and Jan. 17-31); stage-discharge relation not established after changes in channel resulting- from January flood. Cooperation.- Water-stage recorder graph, furnished by Pacific Qas & Electric Co., ob- tamed in connection with a Federal Power Commission project. Rating table, October to November 1942 (gage height, in feet, and discharge, in aecond-feet) 0.1 1.4 17 8.9 158 .2 1.6 28 3.2 218 .6 .8 1.8 40 3.6 31S .8 2.4 2.0 54 4.0 444 1.0 S 2.3 79 4.4 60S 1.2 10 S.6 110 Discharge, in second-feet, water year.October 1948 to September 1943 Day Oct. NOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.1 0.2 2 .1 .2 3 .1 .3 4 .1 .3 5 .1 .3 6 .1 .2 7 .1 .S 8 .1 .2 9 .1 .2 10 .1 .2 11 .2 .2 12 ,& .2 13 .1 .2 14 .1 .2 15 .1 1.0 16 .1 .5 17 .1 54 18 .1 568 19 .1 86 20 .1 60 21 .1 56 22 .1 3S 23 .1 57 24 .1 68 25 .1 59 26 .1 36 27 .1 100 28 .1 alOS 29 .2 a60 30 .S a70 31 .S - Seoond- Runoff in Month foot-days Maximum Minimum Mean acre-feet October...... 3.6 0.2 0.1 0.12 7.1 November...... 1,391.6 568 .e 46.4 8,760 December...... Calendar year ...... - - - - - a No gage-height record; discharge computed on baaia of records for nearby streams. Time baala; Pacific war time. To convert war time to standard tine, subtract 1 hour. 266 MOKELUMNE RIVER BASIN Bear River'at Pardoe Camp, Calif. Location.- Water-stage recorder, lat. 38°32', long. 120°15', In sec. 18, T. 8 N., R. 16 E., Rating table, water year 1942-43, except periods of Ice effect (gage height, In feet, and discharge, In second-feet) 0.4 0.5 1.9 62 4.2 566 .6 1.6 2.2 95 4.6 725 .8 4.5 2.6 154 5.0 92S 1.0 10 3.0 234 5.4 1,150 1.3 22 3.4 328 5.5 1,390 1.6 38 3.8 438 6.2 1,630 Discharge, in second-feet, water year October 1942 to September }°43 Day Oct. NOV. Dec. Jan. Feb. Mar. Apr. May June Jul" Aug. Sept. 1 58 2.0 Ill 12S b!2S b99 75 810 1,330 51 18 80 2 57 1.3 130 130 b!25 b98 S5 647 435 47 18 78 3 55 1.6 122 124 b!22 98 98 532 275 44 17 75 4 54 2.1 116 121 122 118 114 549 206 42 17 74 5 53 2.3 114 US b!22 208 267 503 172 36 17 72 6 51 2.7 114 114 b!21 152 254 513 168 35 17 70 7 51 2.1 109 111 b!20 125 338 47S 230 30 17 68 8 49 1.5 108 10S bllS 276 368 421 264 26 17 66 9 48 1.4 105 105 bl!7 468 210 354 243 24 17 64 10 47 1.2 103 104 bl!6 376 156 447 290 22 16 62 11 47 1.0 102 100 bl!5 227 136 432 226 .22 16 60 12 45 1.0 99 98 114 200 188 360 182 21 16 59 13 44 .9 98 96 112 200 31S 321 121 21 16 58 14 42 .9 96 96 bl!2 223 44-* 287 126 21 16 56 15 41 9.5 95 94 bl!2 190 456 234 133 21 16 60 16 39 11 91 91 bl!2 174 535 174 152 21 16 72 17 37 90 89 SS 112 168 503 172 163 21 15 67 18 36 236 87 85 111 163 503 216 159 21 16 32 19 34 125 S4 83 112 158 494 282 144 21 15 57 20 32 116 SI 82 115 154 410 311 119 21 37 51 21 30 115 eo 386 119 152 318 396 103 21 100 44 22 28 114 79 253 138 149 393 462 72 21 100 34 23 26 112 310 298 119 151 621 588 68 20 99 15 24 23 112 266 180 112 158 610 640 63 20 96 3.6 25 17 111 156 165 111 166 536 698 59 20 95 2.0 26 9 108 141 k 154 105 172 367 539 68 20. 93 1.2 27 5 140 140 149 b!04 186 408 S19 56 20 90 .9 28 3.3 118 151 143 blOO 202 1*510 471 56 19 88 .7.S ' 29 2.4 114 151 bl40 _ 223 484 386 57 18 85 30 2.8 114 141 bl38 . 206 464 366 56 18 «3 .5 31 3.6 - 133 b!36 - 172 - 676 - 18 82 1 Seoond- Runoff In Month foot-days Maxi«» Minimum Moan acre-feet October...... 1,070.1 58 2.4 34.5 ' 2,120 November...... 1,767.5 236 .9 68.9 3,510 December ...... 3,801 310 78 123 7,540 Calendar year 1942 ...... 55,078.6 1,140 .9 151 109,200 January ...... 4,218 388 82 136 3,370 February...... 3.246 138 100 116 6,440 Maroh...... B.S11 468 98 1S7 11,530 April...... 11,665 1,510 76 388 23,120 May...... 13,682 810 172 441 27,140 June...... 5,734 1,330 66 191 11,370 July...... 783 51 18 25.3 1,550 August...... 1,360 100SO" 15 43.9 2,700 September...... 1,413.7 .S 47.1 2.SOO Water year 1942-43 ...... 64,541.3 1,510 .5 149 108,200 Peak discharge.- Apr. 28 (6 a.a.) 2,700 sec. -ft. 5 May 1 (10 p.m.) 1,410 sec. -ft.': June 1 (10 a.m.) 1,810 sec. -ft. b Stage-discharge relation affected by ice. Tlaa ba»l»; Pacific war time. To convert war tine to standard tine, subtract 1 hour. MOKELUMNE RIVER BASIN 267 Middle Fork Mokelumne River at West Point, Calif. Location.- Water-stage recorder, lat. 38°23'15", long. 120°31'40", In sec. .10, T. 6 N., R. 13 E., 200 feet downstream from highway bridge, 1 mile south of West Point, and 3t miles upstream from South Fork. Altitude of gage, about 2,500 feet (from topographic map). Drainage area.- 67.2 square miles. Records available.- October 1926 to September 1943. October 1911 to October 1926, at site 1,300 feet upstream. Average discharge.- 31 years (1912-43), 56.2 second-feet. Extremes.- mxlmum discharge during'year, 1,470 second-feet Jan. 21 (gage height, 5.78 feet); minimum, 9 second-feet Oct. 30, 31, Sept. 23. 1911-43: Maximum discharge observed, 2,550 second-feet Jan. 23, 1914 (gage height, 10.0 feet, site and datum then in use), from rating curve extended above 490 second- feet; practically no flow Aug. 23 to Sept. 14, 1931, and no flow during part of day Sept. 9, 10, 1934. Remarks.- Records excellent. Several small diversions above station. Storage In Calaveras Reservoir (capacity, 1,740 acre-feet), 6'miles above station, began In January 1940. At times as much as 12 second-feet Is diverted to South Fork above station. Rating tables, water year 1942-43 (gage height, in feet, and discharge, in second-feet) (Shifting-control method used July 21 to Aug. 1, Aug. 31, Sept. 27-30) Oct. 1 to Mar. 10 Mar. 11 to Sept. 30 1.0 1.7 63 3.6 440 1.0 7.5 1.5 40 1.1 2.0 103 4.0 586 1.1 12 1,7 63 1.2 2,3 153 4.5 755 1.3 23 1.3 2.6 214 4.8 890 Hote.- Same as preced 1.5 306 5.2 1,120 ing table above 1.7 feet. Discharge, in second-feet., water year October 1942 to September 1943 Day Oct. NoV. Dec. Jan. Feb. Mar. Apr. May June July Avg. Sept. 1 11 10 73 54 254 176 6243 153 99 32 17 12 2 11 10 76 108 225 172 232 146 79 32 18 12 3 10 23 73 97 199 166 216 140 7Q 30 18 13 4 10 22 69 95 1S7 178 201 135 68 30 18 12 5 10 16 65 93 180 380 210 133 63 29 18 12 6 10 14 64 86 172 679 201 130 61 29 19 12 7 10 14 57 83 197 432 193 128 58 28 18 12 8 10 14 22 78 206 514 210 125 55 26 18 12 9 9.5 14 gg 73 182 S31 201 121 52 25 18 12 10 10 13 21 69 172 1,100 191 121 50 . 36 19 12 11 12 13 45 63 172 743 17S US 49 25 19 12 12 13 13 65 53 168 580 168 116 50 25 16 13 13 13 13 5S 38 162 493 162 115 51 25 15 12 14 12 13 44 36 159 502 159 114 47 22 18 11 15 12 28 27 35 157 448 159 110 46 22 17 11 16 11 26 26 35 153 390 157 109 43 23 16 11 17 9.5 133 26 32 149 376 155 1O8 39 23 16 11 1ft 10 473 24 27 146 395 153 78 37 22 16 11 19 11 185 24 34 144 3SO 151 39 38 19 16 11 20 10 108 23 72 142 324 148 37 36 20 15 11 21 9.5 97 23 755 142 306 142 37 36 20 14 11 22 11 90 20 583 166 314 140 36 36 20 14 11 23 11 S6 125 723 170 294 137 36 36 19 14 10 24 10 82 195 522 178 275 135 36 35 ie 14 10 25 9.5 81 169 366 218 258 135 33 35 18 13 10 26 10 79 79 299 204 247 133 33 36 18 13 10 27 10 93 61 299 197 236 135 33 35 18 13 11 28 11 85 59 243 187 229 229 40 33 17 13 11 29 10 79 59 234 _ 240 193 55 32 IS 12 11 SO 9 75 50 443 _ 268 166 62 32 18 12 10 31 9 47 339 - 251 71 - 18 12 - Seoond Runoff in Month foot-days Maximum Minimum Mean acre- feet 325.0 13 9 10.5 645 2,003 473 10 66.7 3,970 December ...... 1,791 195 20 57.8 3,550 Calendar year 1942 ...... 36,135.0 1,140 9 99.0 71,670 6,059 755 27 195 12,020 4,988 254 142 178 9,890 March...... 12,147 1,100 166 392 24,090 as11...... 5,233 243 133 174 10,380 2,748 153 33 88.6 5,450 1,437 99 32 47.9 2,«50 July 715 32 17 23.1 1,420 489 19 IS 15.8 970 September...... 340 13 10 11.3 674 Water year 1942-43 ...... 38,274 1,100 9 105 75, 910 Peak discharge.- Uov. 18 (1:30 p.m.) 664 sec. -ft.; Jan. 21 (5:30 p.m.) 1,470 sec. -ft.; Jan. 23 (,12 m.) 856 sec.-ft.; Jan. 30 (2 p.m.) 580 sec.-ft.; Mar. 6 (3:30 a.m.V 906 seo.-ft. Mar. 10 (8 a.m.) 1,250 sec.-ft. Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour. 268 MOKELUWE RIVER BASIN Soutfc Fork Mokelumne River near West Point, Calif. Location.- Water-stage recorder and concrete control, lat. 38°22', long. 120°33', in SWi sec. 16, T. 6 N., R. 13 E.. 600 feet downstream from Sawyer Brldg-e, 2 miles up- stream from Kiddle Fork, and 2t miles southwest of West Point. Altitude of gage, about 2,000 feet (frcra topographic map). Drainage area.- 73.8 square miles. Records available.- October 1933 to September 1943. Average discharge.- 10 years, 91.9 second-feet. Extremes.- Maximvmi discharge during year, 3,230 second-feet Jan. 21 (gag«* height, 9.06 feet) ', minimum, 10 second-feet Sept. 22-27. 1933-43: Jfaximum discharge, 3,600 second-feet Feb. 22, 1936, fronr rating curve extended above 710 second-feet; maximum gage height, that of Jan. 21, 1943; no flow Aug. 6, 7, Aug. 12 to Sept. 26, 1934. Remarks.- Records good. Small diversions above station. At times as much as 12 second- reer are diverted from Middle Fork Into South Fork above station. Discharge, in second-feet, water year October 1942 to September 1943 Day Oot. Nov. Dec. Jan. Feb. Mar. Apr. May June Jul- Aug. Sept. " 38 1 14 16 32 71 337 215 252 151 96 18 13 2 14 15 36 69 270 204 248 143 81 37 18 12 3 14 23 38 62 233 201 239 137 70 35 19 12 4 14 24 34 67 207 230 233 132 69 35 19 13 5 13 19 33 54 190 608 245 126 66 34 19 12 6 12 18 S3 50 173 1,090 233 121 64 34 19 12 7 12 18 36 47 207 647 224 114 62 31 19 12 8 12 17 34 46 239 709 239 111 60 30 19 12 9 12 17 33 43 201 1,090 224 106 56 29 18 12 10 13 17 32 42 183 ei,420 215 104 55 29 17 12 11 17 17 32 41 ieo 1,070 201 101 54 29 16 12 12 20 17 31 39 171 786 190 98 65 29 16 12 13 19 16 31 39 166 628 165 93 56 29 16 12 14 18 16 30 38 166 628 ieo 92 54 29 16 12 15 17 40 30 37 164 512 ISO 88 51 29 16 12 18 17 34 30 36 16S 427 178 86 49 29 16 12 17 16 154 29 34 158 438 173 82 48 29 15 12 18 16 450 28 34 153 427 168 80 44 29 14 11 19 16 187 28 36 149 368 164 77 44 28 14 11 20 14 74 29 77 149 333 158 77 44 26 14 11 21 14 51 29 1,510 ' 158 S46 151 75 46 24 14 11 22 14 42 32 1,150 242 326 147 74 ,46 22 14 10 23 14 37 171 1,210 233 304 143 73 46 22 14 10 24 14 34 307 702 242 284 141 72 44 22 14 10 25 14 33 265 438 324 273 137 68 43 , 22 14 .10 26 15 30 157 see 280 262 132 60 42 22 14 10 27 16 48 117. 373 265 266 137 66 41 21 14 10 28 15 44 106 288 233 252 270 64 40 21 13 11 29 15 37 111 264 288 18S 62 40 21 13 12 30 16 34 92 719 280 164 66 39 21 13 11 31 16 80 600 266 7* 20 13 Second- Runoff in Month foot-days Maximum MiniBum Mean acre-feet Octo 461 20 12 14.9 914 Nove 1,679 450 15 52.6 3,130 December...... 2,107 307 28 68.0 4,180 Calender year 1942 44, 466 1,670 12 122 88,'180 Janiiary . 8,481 1,510 34 274 16,820 Februarv 6,825 337 149 208 11,550 Marc5??T:. ::..:. .:::.: ::::::::::::::::::::: J.5,169 1,420 201 489 30,090 Aprii...... 5,736 270 132 191 11,380 tgftrf 2,876 151 92. S 5,710 June 1,602 S6 39 63.4 3,180 July 856 '38 20 S7.6 1,700 Augu St...... 488 19 13 15.7 968 September...... 344 13 10 11.6 682 Water year 1942-43 ...... 45,526 1»510 10 125 90,300 Peak discharge.- Hor. 18 (1)30 p.m.) 645 sec. -ft.; Jan. 21 (9 p.m.) 3,230 seo. -ft.; Jan. 23 t* a.m. 1 1,44O 3-90.-ft.; Jan. 30 (1 p.m.) 982 seo. -ft.; Bar. 6 (3 a.m.) 1,400 sec. -ft.; Mar. 10 (11 a.m.) 1,550 see,-ft. TLme baala: Pacific war time. To convert war time to standard time, subtract 1 hour. MOKELUMNE RIVER BASIN 269 Woodbrldge Canal at Woodbrldge, Calif. (Location.- Differential water-stage recorder and gate-opening recorder, lat. 38°OV10", long. 121°18'00", In SEi sec. 34, T. 4 N., R. 6 E., at Woodbridge at point of diver sion. Datum of gage is 32.18 feet above mean sea level (levels by East Bay Municipal Utility District). Records available.- April 1926 to September 1943. * Average discharge.- 17 years, 108 second-feet. Extremes.- Maximum daily discharge during year, 347 second-feet July 30, Aug. 5; no flow Nov. 19 to Apr. 20. 1926-43: Maximum daily discharge, 383 second-feet Aug. 6, 1941; no flow during part of each year. Remarks.- Records excellent except those for Nov. 9-11, Apr. 21, which are fair. Dis- charge computed from records of gate openings and effective head as shown by ncorders. Canal diverts from Woodbrldge Reservoir on Mbkelumne River in sec. 34, T. 4 N., R. 6 E., for Irrigation of lands south and west of Woodbrldge. Discharge, in second-feet, water year October 1942 tc September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 186 159 0 160 254 327 306 284 2 184 157 0 160 223 331 323 283 3 186 155 0 156 284 339 328 287 4 179 155 0 149 284 325 34 152 180 U.090 4,490 December ...... t ...... 0 0 0 0 0 Calendar year 1942 ...... 47,308.8 351 0 130 93,840 0 0 0 0 'February 0 0 0 May...... 15,530 333 223 295 17,530 July, 290 319 19,600 347 250 297 18,260 September...... 7,345 267 184 245 14,570 Water year 1942-43 ...... 52,200 347 0 143 103,500 Pacific war time.To convert war time to standard time, subtract 1 hour. 370 MOKELUMNE RIVER BASIN Cosumnes River at Michigan Bar, Calif. Location.- Water-stage recorder, lat. 38°30'00", long. 121°02'45", In SF* sec. 36, T. 8 to., R. 8 E., at highway bridge at Michigan Bar, 5$ miles southwest of Latrobe and 12 miles downstream from confluence of North and Middle Forks. Altitude of gf.ge, about 190 feet (from topographic map). Drainage area.- 537 square miles. Records available.- October 1907 to September 1943. Average discharge.- 36 ye"ars, 483 second-feet. Extremes.- Maximum discharge during year, 22,900 second-feet Mar. 10 (gs.ge height, 10.90 feet), from rating curve extended above 10,000 second-feet; minimum, 8 second-feet Oct. 5. 1907-43: Maximum discharge, 26,200 second-feet,Mar. 31, 1940 (gape height, 11.66 feet), from rating curve extended above 10,000 second-feet; no flow during part of 1908, 1918, 1919, 1924-26, 1931, 1934, 1939. Flood In March 1907 reached a stage of 16.3 feet. Remarks.- Records excellent. Diversions above station for irrigation. (gage he nfl-feet) Oct. 1 to Jan. 21 Jan. 22 to Sept. 30 2.0 11 3.4 326 6.0 3,790 1.9 12 2.9 174 5.4 2,700 2.1 18 3.7 490 6.5 5,100 2.0 19 3.1 232 6.0 4,000 3.3 38 4.0 710 7.0 6,720 2.1 27 3,4 350 6.8 6,220 2.5 65 4.4 1,090 7.5 8,600 2.2 37 3.7 524 8.0 10,600 2.7 99 4.8 1,S10 8.0 10,600 2.3 49 4.0 790 9.0 14,700 2.9 144 5.2 2,210 2.5 81 4.4 1,230 10.0 18,900 3.1 204 5.6 2,930 2.7 124 4.8 1,740 Discharge, in second- feet, water year Ootcber 1942 to Septeaber 1943 Day Oct. Nor. Dec. Jan. Feb. Mar. Apr. May June Jily Aug. Sept. 1 18 34 256 774 2,780 1,330 1,540 1,060 582 134 42 19 2 18 31 240 718 2,220 1,220 1,480 1,020 690 131 41 19 3 18 39 321 638 1,900 1,170 1,420 956 450 126 39 20 4 19 97 298 570 1,670 1,410 1,390 912 400 122 37 19 5 14 99 256 522 1,560 4,020 1,870 860 365 115 37 IS 6 16 68 280 478 1,400 7,150 1,680 S10 332 112 37 18 7 17 55 387 436 1,510 4,300 1,450 770 309 108 37 18 8 19 50 SOS 408 1,940 6,580 1,570 710 293 101 36 16 9 21 48 264 3S1 1,550 14,700 1,520 654 S77 97 36 16 10 21 48 244 361 1,350 18,700 1,390 618 266 93 35 16 11 21 50 233, 341 1,280 9,900 1,290 600 256 91 34 16 12 22 50 215 321 1,210 6,030 1,210 577 249 83 33 17 13 25 48 208 303 1,150 4,560 1,150 547 249 83 30 16 14 32 47 204 294 1,110 4,560 1,150 510 242 81 30 16 15 38 51 19S 285 1,090 3,730 1,120 497 229 78 2S 16 16 38 84 194 276 1,080 3,070 1,130 470 220 78 27 16 17 36 185 1Q1 260 1,040 3,500 1,120 445 208 76 25 15 18 35 3,870 185 240 1,020 3,520 1,080 428 199 72 25 14 19 34 1,790 178 204 989 2,740 1,060 411 188 72 25 13 20 31 630 175 289 967 2,400 1»OSB 406 185 69 24 13 2-4 21 30 403 178 7,220 967 2,400 967 395 180 67 13 22 30 312 188 10,700 1,310 2,490 954 385 , 180 67 23 IS 23 30 264 85S 11,600 1,450 2,080 901 370 174 64 23 12 24 29 236 3,300 5,930 1,470 1,880 912 375 , 166 60 25 12 25 30 222 2,700 3,920 2,140 1,750 300 370 181 66 25 12 26 29 211 1,530 3,050 1,840 1,670 ale 360 156 55 27 14 27 30 280 1,090 3,430 1,750 1,600 090 350 151 54 25 19 28 30 448 1,130 2,590 1,460 1,540 341 146 49 24 20 29 32 336 1,420 2,860 1,850 332 138 47 22 20 30 34 280 1,060 6,300 1,960 l'l70 318 136 45 21 a20 31 34 880 4,100 1,640 385 44 21 Second- Runoff in Month fcct-days Maximua Minimus Mean acre-feet Octc her...... 831 38 14 86.8 1,650 Here 10,366 3,870 31 346 20,560 Dece her...... 19,174 3,300 175 619 38,030 Calendar year 1942 273,502 14,100 14 749 542,500 Janu ary 69,499 11,600 204 2,242 137,800 Febr 41,803 2,780 967 1,472 81,720 Hare 125,460 18,700 1,170 4,047 248,800 Apri 1...... 37,304 1,870 820 1,243 73,990 May 17,242 1,060 318 5S6 34,200 June 7,777 690 136 259 18,430 July 2,53Q 134 44 81.6 5,020 Augu 918 42 21 29.6 1,820 September...... 4S6 20 12 16.2 964 Dater year 1942-43 ...... 332,790 18,700 12 912 660,000 Peak discharge.- Nov. 18 (11 a,m.) 5.220 sec. -ft.: Jan. 21 (8 P.m.) '16. 800 aee.-ft.i Jan. 23 (4 aTST) 14,400 seo.-ft.; Jan. 30 (3 p.m.) 9,360 sec.-ft.; Mar. 6 {6 a.m.) 9,74C sec.-ft;.; Bar. 10 (6 a.m.) 22,900 sec.-ft. a Ho gage-height record; discharge Interpolated. Time baalsa Pacific war time. To convert wa,r time to standard tine, subtract 1 hour. GOOSE LAKE BASIN 271 Drew Creek near Lakevlew, Oreg. Location.- water-stage recorder, lat. 42°07', long. 120°35', In NWi sec. 10 or SWf sec. 3, T. 40 S., R. 18 E., at highway bridge, li miles downstream from willow Creel, 2 miles downstream from Drew Creek Dam, and 13 miles southwest of Lakevlew. Drainage area.- 211 square miles. Records available.- January 1909 to September 1921 and October 1925 tp September 3.943 In reports or Geological Survey. January 1909 to September 1936 In reports of stfte engineer. Average discharge.- SA years (1909-30, 1937-38, 1939-41), 65.5 second-feet, Including diversion oy North Drew Canal. Extremes.- Maximum discharge during year, 800 second-feet Apr. 8 (gage height, 5.?.7 reet;; minimum, 2.2 second-feet Nov. 11-13 (gage height, 0.74 foot). 1909-43: Maximum discharge, 3,000 second-feet Mar. 1, 2, 1910, from rating curve extended above 1,200 second-feet; no flow at times. Remarks.- Records good except those for Oct. 1 to Feb. 6, which are poor. Considerable regulation caused by Drew Creek Heservoir, 2 miles above station. Since March 1914 North Drew Canal of Lakevlew Water Users, inc., has diverted water around station. During the year probably no diversion prior to May 17. No records subsequent to May 17 except as Indicated In table below. Flow for days listed computed on brsis of discharge measurements. Drew Greek Reservoir Horth Drew Canal Date Contents (acre-feet) Discharge ( at)C.-ft.) May 17 61,610 0 22 62,060 12 25 - 19 June 9 - 37 26 _ 42 July 23 - 51 Aug. 9 - 50 11 - 51 13 - 48 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 3.S 3.2 6.1 30 6.3 3SO 713 388 82 80 6f 58 2 3.3 3.0 5.2 16 6*3 378 713 37S 88 79 71 58 3 3.3 3.0 3.7 12 6.3 378 716 37S 90 76 77 58 4 3.2 3.0 3.5 11 6.5 342 731 37S 91 77 7T 58 5 3.3 3.2 3.5 9.4 6.5 279 758 322 94 77 72 58 6 3.3 3.3 3.7 8.2 7.0 281 7S6 350 94 76 69 58 7 3.3 3.2 3.5 7.9 192 297 786 250 93 76 63 58 8 3.3 3.3 3.5 7.3 1S9 352 796 248 91 76 65 57 9 3.2 2.9 3.5 7.0 247 328 774 246 91 76 63 57 1C 3.3 2.4 3.5 7.0 313 297 744 244 9O 76 62 57 11 3.2 2.4 3.5 a7.0 306 254 723 182 S6 76 6S 30 12 3.2 2.4 3.5 a7.0 304 360 708 S5 66 76 63. 15 13 3.2 2.2 3.7 a7.0 302 289 699 47 83 73 67. 14 14 3.2 2.5 4.0 a7.0 300 267 690 IS 81 63 60 14 15 3.2 2.5 3.8 7,0 300 252 690 25 60 63 60 16 16 3.0 2.9 aS.S 6.8 335 260 690 24 79 63 60 20 17 2.9 2.5 3.8 S.5 402 231 687 22 79 63 77. 20 18 2.9 2.9 3.5 6.1 405 1S9 657 31 7S 63 79 20 19 2,9 2.6 3.5 6.1 405 189 438 22 77 63 79 20 20 2.9 2.6 3.5 6.1 405 120 435 24 77 63 6f> 20 21 2.9 2.6 3.7 6.1 412 22 435 31 77 64 6i? 19 22 2.9 2.6 3.8 6.1 425 28 435 31 78 64 63 6.5 23 3.0 1.4 4.0 6.1 408 31 435 31 78 64 67. 3.5 24 2.9 4.0 5.4 6.1 398 87 432 33 78 64 67 3.0 25 2.9 2.7 7.3 6.1 392 42 430 44 78 64 60 3.0 26 2.9 4.0 7.3 5.8 385 154 428 52 78 64 60 2.8 2.9 7.6 9.1 5.8 385 200 432 68 81 64 60 2.8 27 5C< 28 2.9 4.9 24 5.8 385 374 430 71 SO 64 & < 2.8 29 3.0 8.2 15 5.8 - 614 375 78 80 65 2.8 30 2.9 5.2 14 6.1 - 660 586 79 80 68 &' 2.8 31 3.2 ~ 30 6,8 - 725 - 79 - 68 6T» Second- Rrioff in Month foot-days MaxiBUB Minion* Mean an re-feet October...... 96.8 3.8 2.9 3.10 191 November...... 102.8 8.2 2.2 3.41 203 December...... 199.9 30 3.5 6,45 396 Calendar year ...... _ - - - - January...... 250.0 30 6.8 8.06 496 February...... 7,693.9 425 6,3 273 15,140 March...... S,520 725 22 275 16,900 April ...... 18,151 796 S75 605 36,'QOO May...... 4,149 588 18 134 8,230 June...... 2,498 94 77 83.3 4,960 July...... 2,160 80 63 69.4 "4,860 August ...... 1,999 79 56 64.5 3,960 September...... S15.0 58 2.S 27.2 1,620 Water year 1942-43 ...... 46,564,2 796 2 2 128 92,360 a Ho gage-height record; discharge Interpolated. Time basis; Pacific war time. To convert war tine to standard time, subtract 1 hour. 272 GOOSE LAKE BASIN Cottonwood Creek near Lakevlew, Oreg. Location.- Water-stage recorder, lat. 42°14', long. 120°30', In SWi sec. 29, T. 38 S., R. 191;., 200 yards downstream from Cottonwood Reservoir and 10 miles northwest of Lakevlew. Drainage area.- 30 square miles. Records available.- November 1908 to September 1919 and October 1925 to September 1943 In reports or Geological Survey. November 1908 to September 1919 and October 1924 to September 1936 In reports of State engineer. Average discharge.- 25 years (1909-19, 1924-35, 1938-42), 19.8 second-fe^t. mes.- Maximum discharge during year, 147 second-feet June 3 (gage height, 3.67 feet); minimum recorded, 0.9 second-foot Oct. 24, 25 (gage height, 1.27 feet), but may have been less during period of no gage-height record, Nov. 10 to Apr. 2. 1908-19, 1924-43: Maximum discharge, between 500 and 1,000 second-feet during . period Aprt. 26 to May l, 1927, when natural flow, estimated as 170 s«cond-feet, was augmented by water escaping from reservoir through break In outlet conduit above con trol gate; no flow at times. Remarks._- Records good except those below 10 second-feet, which are fair, and those for periods of no gage-height record, which are poor. Since 1923 considerable regulation by Cottonwood Reservoir 200 yards above station. Discharge, in second-feet, water year October 1942 to September 1948 Day Oct. NOT. Deo. Jan. Feb. Mar. Apr. May June Jily AuB. Sept. 1 1.7 1.6 US 107 41 £9 36 3.3 2 1.7 1.7 »15 107 42 59 36 3.8 3 1.7 1.9 ase 10S 98 £9 35 3.1 4 1.7 1.9 S2 108 133 5S 34 3.1 5 l.S a2.0 83 92 128 £6 33 3.1 6 l.S a2.1 86 6S 121 45 32 3.1 7 l.S a.2.3 88 6S 121 47 32 2.9 8 l.S a2.4 89 68 105 47 32 2.9 9 1.8 2.5 89 68 79 47 30 2.9 10 1.8 - 69 56 TO 47 29 8.9 11 1.8 _ 89 30 79 47 88 2.9 12 1.8 _ 96 88 73 47 88 8.9 13 1.7 - 184 86 61 46 86 8.9 14 1.7 - 130 86 61 45 86 8.9 15 1.6 _ 138 85 61 44 24 8.8 a.15 16 1.6 _ 156 88 61 44 81 8.7 17 1.5 _ 144 85 61 44 17 8.7 18 1.4 _ 144 18 61 44 11 8.8 19 1.3 - 142 12 61 43 4.1 8.8 20 1.1 - 141 IS 61 44 4.1 8.7 21 1.0 _ 141 25 61 43 .1 2.7 22 1.0 - 141 26 61 42 .2 2.6 23 1.0 _ 139 31 61 42 .1 8.6 24 .9 - 136 31 61 41 .0 8.6 25 .9 - 134 38 61 41 .0 B.6 26 1.0 _ 133 34 61 40 3.8 8.6 27 1.2 - 138 37 61 40 3.e 8.6 28 1.2 - 117 40 61 39 3.5 8.6 ' 29 1.3 _ 107 40 61 39 3.4 8.6 50 1.4 - , 107 40 60 SB 3.5 8.6 31 1.6 - - 40 - 37 3.4 Second- Runoff la Month f cot-days Maxima MlDlMlB Mem acre-feet October ;. 48. 6 l.S 0.9 1.47 90 November i g 18.4 8.9 1.6 2.04 36 December...... Calendar year ...... _ - _ _ - - -j- ~*~ January...... February _ ^ ^ ^ March...... 466 _ _ 15 988 3««S8 144 15 109 6,460 Si, 1,451 108 18 46.8 8,880 June...... 8,190 133 41 73.0 4,340 July...... 1,414 59 37 46.6 2,800 August...... £80.0 36 3.4 1S.1 1,110 September...... 84.7 S.3 8.6 8.S2 16S ' ' Water year ...... - - No -gage-height record; dlaoharge interpolated or computed on b**i* of Infen^tton by master. Time tiaalat Pacific war time. To convert war tine to standard tl»e, ubtre.et 1 hour. SACRATENTO RIVER BASIN 273 SACRAMENTO RIVER MAIN STEM Sacramento River at'Keswick, Calif. Location.- V&ter-stage recorder, lat. 40°36', long. 122°27', In Wi sec. 28, T. 32 N., R. 5 W., three-quarters of a mile downstream from Keswick Dam, three-quarters of a mile upstream from Middle Creek, 1| miles downstream from Keswick, and 11 mllea down stream from Shasta Dam, under construction. Datum of gage is 478.81 feet above mean sea level, datum of 1929. Drainage area.- 6,710 square miles (excluding Goose Lake Basin). Records available.- October 1942 to September 1943. October 1938 to April 1942 at site l£ miles upstream. Extremes.- ffeximum discharge during year, 49,400 second-feet Jan. 23 (gage height, 26.38 reetj, from rating curve extended above 26,000 second-feet by comparison with rating for former station It miles above; minimum not determined: minimum gage height, 6.67 feet Nov. 8, regulation by Shasta Dam. 1938-43: Jtalmum discharge, 186,000 second-feet Feb. 28, 1940 (gage height, 47.2 feet, site and datum then in use), from rating curve extended above 75,000 seeend-feet on basis of peak discharge at Kennett plus 4,000 second-feet estimated Inflow; minimum not determined. Remarks.- Records good except those for periods of backwater, which are fair. Flew regu lated by storage reservoir and many diversions above station. Storage In Shasta Reservoir began during year; contents on Sept. 30, 1943, 14,600 acre-feet. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. MOT. Dec. Jan. Feb. liar. Apr. May June July Aug. Sept. 1 4,120 4,000 5,750 12,300 17,400 12,700 15,000 12,200 8,510 4,990 3,840 3,730 2 3,870 5,960 6,100 13,500 14,700 12,200 14,300 11,400 8,320 . 5,050 3,701 3,740 3 3,840 ,300 5,940 11,900 12,600 11,800 13,900 11,300 7,340 4,980 3,900 3,750 4 3,79O ,400 5,670 10,500 11,700 11,500 19,400 11,200 6,960* 4,620 4,000 3,650 5 3,790 ,310 5,310 9,3&0 11,600 11,300 15,500 10,500 6,550 4,580 4,010 3,510 6 4,150 ,250 5,330 8,560 11,400 11,600 16,200 10,20O 6,140 3,180 4,081) 3,490 7 4,2OO ,050 5,560 8,110 12,700 15,600 14,900 9,830 5,060 3,650 4,051? 3,680 8 4,020 3,600 6,840 7,760 14,500 20,200 14,800 9,380 6,540 4,340 3,880 3,730 9 4,020 3,760 7,400 7,510 13,700 22,800 14,300 8,960 6,380 4,390 3,640 3,750 10 3,920 4,050 6,640 6,400 12,700 22,200 13,400 8,400 6,460 4.4OO 3,881^ 3,720 11 4,130 4,120 6,070 5,640 11,400 21,200 12,500 8,770 6,610 4,330 4,08ft 3,720 12 4,170 4,140 5,590 5,640 10,600 19,800 12,100 8,290 6,550 4,240 4,06!) 3,660 13 4,250 4,280 5,370 5,930 10,200 19,000 12,200 8,070 6,130 4,540 4,020 3,610 4,040 4,390 5,310 5,920 10,200 23,600 12,100 ' ,760 6,180 4,420 3,840 3,690 15 4,220 5,020 5,420 5,8SO 10,400 22,600 12,100 ,820 6,290 4,460 3,690 3,8*O 16 4,200 5,650 5.47O 5,670 10,500 19,800 12,100 ,660 6,110 4,480 3,660 3,920 17 4,040 7,380 5,520 5,470 10,800 16,200 11,500 ,250 5,S60 4,550 3,77(1 3,930 18 5,950 10,000 5,489 5,410 11,SOO 16,200 11,200 ,140 5,780 4,290 3, 860 3,880 19 3,880 6,980 5,120 5,490 11,300 14,900 11,100 7,080 5,480 4,130 3,88T» 3,730 4,180 5,860 4,970 5,900 11,400 14,100 11,200 7,880 5,210 4,300 3,850 3,640 21 4,800 5,100 4,890 25,600 11,500 13,100 11,000 6,840 5, £60 4,410 3,750 3,710 4,880 4,640 5,370 38,200 13,60ft 12,200 10,700 6,770 5,010 4,340 3,640 3,840 23 4,370 4,840 8,730 44,200 19,200 11,400 10,600 8,440 4,900 4,29O 3,550 3,860 24 4,000 5,830 10,800 29,400 18,900 11,200 10,700 6,370 5,380 4,180 3,6 0 3,830 3,73O 5,540 15,000 22,000 17,900 10,800 10,400 6,340 5,200 4,060 3,78" 3,750 26 3,920 5,220 1O,6QO 21,600 15,700 11,900 10,200 6,2SO 5,800 4,010 3,830 3,030 27 4,280 8,340 9,510 21,800 14,400 14,000 10,400 6,160 4,970 4,060 3,801 3,530 28 4,420 6,310 11,000 20,400 13,500 14,200 12,100 6,040 4', 760 4,140 3,780 3,610 29 4,320 5,700 11,000 20,300 - 14,900 13,900 5,810 5,200 4,180 3,850 3,840 ' 31 4,250 5,760 10,200 38,400 _ 18,000 12,600 5,660 5,160 4,170 3,500 3,030 4,070 11,400 22,600 - 16,000 6,310 4,030 3,60r» Second- F«BOff in Month tfoot^S&jrs Ha]cl«m KiuiBum Bean f« re-feet October...... 4,480 153,900. s,eoc December ...... 221,400 15,000 4, sec 7.14S 439,100 Calendar year 1942 ...... - - - - _ 487,370 907,200 366,000 Harch *»y...... JttttC . July...... Au£!B9t. Septeober ...... 111,840 3,930 3,490 3,728 221,800 Hater year 1942-4S ...... 2,982,000 44,200 3,180 8,170 5,915,000 Peak diaetarge.- Jan. S3 (5 «.m. ) 4OP4OO use. -ft.; JF«B. 30 (4 ».«-> S6r3M MO. -ft., HUP.. 14 . _, sec.-ft. .- Backwater fro* diversion Omm 3$ mllee below tatIon Oct. 1 to SOT. 14, Ray 4 to Sent. 30. IJMl«t Pacific war tine, to convert war time to tcnterd tine, subtract 1 hour. 274 SACRAMENTO RIVER MAIN STEM Sacramento River near Red Bluff, Calif. Location.- Water-stage recorder, lat. 40°13'55", long. 122°10'50", In SEi sec. 34, T. as N., R. 3 W., at lower end of Iron Canyon, half a mile downstream from Sevenmile Creek and 4 jniles northeast of Red Bluff. Datum of gage Is 252.6 feet above mean sea level (from river-profile survey). Drainage area.- 9,300 square miles (excluding Goose Lake Basin). Records available.- January 1902 to September 1943. April' " 1895" to' junit 1902 at site at jejLiys perry, 12 miles upstream from Red Bluff. Average discharge.- 48 years, 11,520 second-feet. Extremes.- mximui dis«harge during year, 162,000 second-feet Jan. 21 (gage height, 27.40 reetj; minimum, 2,520 second-feet (regulated) July 7 (gage height, -0.02 foot). 1895-1943: Maximum discharge, 291,000 second-feet Feb. 28, 1940 (gage height, 38.9 feet), from rating curve extended above*200,000 second-feet by logarithmic plotting on basis of velocity-area studies; minimum, 2,400 second-feet Aug. 13, 1931, Sept. 9, 1943. Remarks.- Records excellent. Some storage and many diversions above station. Storage in snasta Reservoir began during year although dam was not yet completed; contents on Sept. 30, 1943, 14,600 acre-feet. Rating tables, water year 1942-43 (gage height, In feet, and discharge, la second-feet) Oct. 1 to Jan. 21 Jan. 22 to Sept. 30 0.9 3,950 4.0 11,800 0.4 3,180 3.0 9,150 9.0 31,000 IB .0 82,400 1.0 4,140 5.0 15,100 .6 3,520 4.0 12,100 10.0 35,800 20 .0 96,900 1.4 4,960 6.5 20,500 .S 3,880 5.0 15,300 11.0 40,800 21 .5 109,000 2.0 6,340 7.0 22,400 1.0 4,260 6.0 18,700 12.0 45,800 3.0 6,940 l.S 5,300 7.0 22,400 14.0 56,800 Hote.- Same as following 2.0 6,470 8.0 26,500 16.0 69,000 table above 6.5 feet. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nor. Deo. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 4,400 4,380 6,960 16,000 27,900 17,000 19,200 16.6OO 10,800 5,480 4,090 3,340 2 4,240 4,320 7,220 18,500 22,000 16,300 18,200 15,500 11,800 5,370 3,940 3,940 3 4,140 4,540 7,520 16,400 19,300 15,500 17,500 14,600 9,860 5,410 3,9SO 3,940 4 3,970 4,940 6,360 14,000 17,60O 15,100 16,90O 14,200 8,950 5,080 4,110 3,880 5 3,950 5,030 6,*60 12,300 16,600 .15,100 18,500 13,700 8,430 4,S50 4,220 3,720 6 4,100 4,940 6,240 10,900 16,700 16,500 21,800 13,100 7,750 4,980 4,160 3,610 7 4,400 4,940 6,940 10,000 18,800 24,300 19,300 12,500 6,220 3,230 4,260 3,650 8 4,320 4,710 7,060 9,600 22,700 28.6OO 21,200 12,000 7,430 4,360 4,150 3,830 9 4,200 4,080 8,410 9,080 20,100 46,900 19,400 11,500 7,460 4,740 3,920 3,940 10 4,220 4,620 8,200 8,440 17,900 41,800 17,700 11,000 7,290 4,740 3,790 3,940 11 4,640 4,790 7,420 7,240 16,400 33,600 16,600 10,600 7,540 41680 4,110 3,940 12 4,750 4,360 6,860 6,890 15,000 29,100 15,600 10,3OO 7,940 4,580 4,800 3,830 13 4,730 4,880 6,360 7,020 14,100 26,500 15,500 9,890 7,860 4,620 4,150 3,680 14 4,770 4,930 6,290 7,120 13,800 32,300 15.30O 9,520 7,810 4,690 4.070 3,650 15 4,790 6,030 6,240 6,990 13,800 33,200 15,200 9,430 7,190 4,680 3,810 3,840 16 4,770 6,340 6,320 6,890 14,2'00 27,400 15,300 9,350 7,010 4,7OO 3,720 3,980 17 4,620 9,610 6,320 6,560 14,100 24,800 15,000 8,9OO 6,770 4,760 3,?40 4,060 18 4,480 11,800 6,320 6,390 14,600 22,400 14,300 7,610 6,570 4,680 3.900 4,050 19 4,360 10,800 6,100 6,360 14,800 20,300 13,900 8,510 6,370 4,360 3,960 3,920 20 4,420 7,520 5,810 8,830 14,600 18,800 14,400 8,400 6,080 4,420 4,010 3,770 21 4,600 6,490 5,770 36,800 14,700 17,600 14,200 8,290 5*960 4,640 4,010 3,740 22 4,670 5,720 6,320 92,500 80,100 16,600 14,500 8,080 6,580 4.640 3,900 3,860 23 4,730 5,490 15,700 L05,OQO 37,400 15,300 13,800 7,860 6,060 4^560 3,830 3,98O 24 4,670 5,860 24,500 53,600 28,600 14,800 13,700 7,640 6,100 4,440 3,79O 3,900 25 4,SOO 6,870 27,700 40,400 26,900 14,800 13,800 7,820 6,9*0 4, 860 3,980 3,940 26 4,040 8,080 17,600 44,000 22,200 14,600 13,000 7,640 6,040 4,160 4,090 3,810 27 4,980 ft, 790 14,100 38,600 20,100 17,900 18,100 7,560 5,610 4,800 4,070 3,680 28 4,710 8,490 18,900 31,600 18,300 17,700 19,900 7,240 6,230 4,320 4,030 3,630 29 4,780 7,290 18,300 41,700 17,900 20,400 7,010 e.sfro 4,380 3,830 , 3,840 30 4,640 6,990 14.7OO 61,600 23,600 17.8OO 6,820 6,640 4,360 3,630 4,070 31 4,6OO 15,700 38,800 20,600 7,290 4,380 3,680 Seoond- Runoff in Month foot-days Maxim* Minim* Mean aore-feet Ooto her...... 138,260 4,790 3,950 4,460 274,200 More mber 183,380 11,800 4,080 6,113 363,700 Deoe«ber...... 315,200 27,7OO 5,770 10,170 625,200 Calendar year 1942 5,031,650 181,000 3,950 13,790 9,981,000 January 831,910 105.000 6,360 26,840 1,650,000 Pebrnary. . 535,200 37,400 13,800 19,110 1,062,000 Marc h...... 696,600 46,900 14,800 88,470 1,382,000 Apri 494,800 21,600 13,000 16,470 980,800 VMM* 3X0,180 16,6.00 6,820 10.O10 615,200 Juste aiB,sso iilaoo 6,060 7,127 424,100 July 148, 860. 6,480 3,230 4,999 282,890 AttguSt...... 128,130 4,2SOV ' 3,080 3,972 244,200 Sept ber...... 116,810 4,070 3,610 3,860 229,100 fater y«*r 1942-43 ...... 4,099,970 106,000 3,290 11,230 8,133,000 Peak (HsehMw.- Jen. SI (0 D,».) 168.000 ee.-ft.i Jan. 23 If &.m.\ 128,000 MO. -ft., Jan. 30 C30 a.m.) 48,100 jwe.-ft.i Map, 8 <« a.m.) 66,100 sec.-ft. Pacific war tine. To convert war time to standard ti»», aubtrait JL hour. SACRAMENTO RIVER MAIN STEM 275 Sacramento River at Butte City, Calif. Location.- Water-stage recorder, lat. 39°27'35", long. 121e59'35", In NEi sec. 32, T. iy N., R. 1 W., half a mile south of Butte City. Zero of gage is set to datum of Corps of Engineers, U. S. Army. Records available.- April 1921 to October 1939 (low-water periods only) and Jur« 1940 to September 1943 In reports of Geological Survey. 1914-17, 1920-21, 1929-43 (gage heights for high-water periods), 1939-43 (discharge). In reports of Dlvlslor of Water Resources, Department of Public Works, State of California. Extremes.- Maximum discharge during year, 143,000 second-feet Jan. 24 (gage height, 94.44 reetj, from rating curve extended above 100,000 second-feet: minimum, 2,230 second- feet Aug. 18, Sept. 7, 8 (gage height, 69.55 feet). 1940-43: Maximum discharge, 170,000 second-feet Feb. 7, 1942 (gage height, 96.87 feet), from rating curve extended above 100,000 second-feet. 1921-43: Minimum discharge recorded, 1,050 second-feet July 15, 25, 26, 1931 (gage height, 67.49 feet)., Remarks.- Records good except those above 100,000 second-feet, which are poor. Flow regulated by storage, many diversions above station for Irrigation, and bypassing for flood control. Cooperation.- Records collected and prepared In cooperation with Division of .Wster Resources, Department of Public Works, State of California. Rating tables, water year 1942-43 (gage height, in feet, and discharge, In second-feet) (Shifting-control method used June 1 to July IS) Oct. 1 to June S3 June 24 to Sept.30 70.5 3,200 76.0 16,500 S6.0 59,200 69.5 2,150 71.0 4,150 78.0 28,900 86.0 77,000 70.0. 2,960 72.0 6,300 80.0 30,100 94,5 144,000 71.0 4,940 74.0 11,000 84.0 47,000 72.0 7,140 Discharge, in second-feet, water year October 1948 to September 1945 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 3,950 4,680 8,150 13,400 66,800 22,200 84,000 19,900 6,990 4,520 2,830 8,310 2 4,050 4,670 7,910 18,700 38,000 20,900 22,600 13,700 9,830 4,420 2,710 8,390 3 3,960 4,570 8,390 20,300 30,900 19,600 21,600 17,400 10,300 4,310 2,5^0' 8,470 4 3,93O 4,880 8,390 18,000 26,400 19,000 20,900 16,200 9,110 4,480 2,5^0 8,560 5 3,760 4,990 7,680 15,900 25,400 18,700 20,300 15,600 8,150 4,800 2,6W 8,470 6 3,760 5,100 .7,450 14,100 24,600 20,600 22,900 15,000 7,910 3,900 2,6TO 8,390 7 3,760 5,100 7,220 12,800 22,600 23,600 24,300 14,100 7,880 3,900 3,6*50 8,230 8 4,060 5,100 7,910 11,800 27,100 29,400 22,200 13,300 6,30O 3,130 2, no 8,830, 9 4,050 4,880 7,910 11,300 28,200 42,800 84,300 12,500 6,760 3,220 2,710 8,390 10 3,950 4,360 9,110 10,800 25,000 62,400 28,200 18,000 7,820 3,600 8,5<50 8,550 11 4,050 4,680 8,870 10,100 22,600 70,100 20,600 11,300 6,530 3, BOO 2,3'»0 8,630 12 4,360 4,990 8,390 9,110 80,900 49,200 19,300 11,000 6,760 3,40O 2,470 8,630 13 4,570 4,990 7,680 8,630 19,300 38,300 18,400 10,600 6,990 3,400 2,6 Sacramento River at Colusa, Calif. Location.- Water-stage recorder, lat. 39°12'50", long. 121059'55", at rorth end of jimeno Grant, Just downstream from highway bridge at Colusa, Colusa County. Zero of gage Is set to datum of Corps of Engineers, U. S. Army. Records available.- April 1921 to October 1939 (lownwater periods only) and June 1940 to September 1943 In reports of Geological Survey. 1920-22, 1924-4F (gage heights for high-water periods), and 1939-43 (discharge), In reports of Division of Water Resources, Department of Public Works, State of California. Extremes.- Maximum discharge during year, 42,300 second-feet Jan. 24 {rage height, 66.56 feet); minimum, 2,170 second-feet Aug. 18 (gage height, 37.45 feet). 1940-43: Maximum discharge, 49,000 second-feet Feb. 8, 1942 (gape halght, 69.20 feet). 1921-43: Minimum discharge recorded, 820 second-feet July 25, 2f. 1931 (gage height, 34.79 feet). Remarks.- Records fair. Flow regulated by storage, many diversions above station for irrigation, and bypassing for flood control. Cooperation.- Records collected and prepared In cooperation with Division of Water Resources, Department of Public Works, State of California. Discharge, in second-feet, water year October 1948 to September 1943 Day Oct. Ncv. Dec. Jan. Feb. Mar. Apr. May June Jtfly Aug. Sept. 1 4,000 ,800 8,000 19,300 35,700 24,400 25,600 22,600 6,500 4,330 2,710 2,320 2 4,100 ,700 7,900 19,300 32,200 22,600 24,100 20,60C 3,500 4,330 2,640 2,320 3 4,200 ,700 7,900 20,400 30,000 21,500 22,900 19,100 10,200 4,230 2,500 2,380 4 4,100 ,600 8,400 20,200 28,000 20,600 22,200 17,70C 9,450 4,230 2,440 2,440 5 4,000 ,900 7,900 18,000 25,800 19,900 21,600 16,600 6,510 4.230 2,440 2,440 6 3,900 5,100 7,400 15,700 25,600 20,100 21.9OO 15,700 8,000 3,920 2,500 2,380 7 3,900 5,100 7,200 14,000 24,000 22,600 24,600 14,80C 7,490 3,720 2,570 2,380 n 4,100 5,200 7,600 12,700 24,100 26,700 23,800 13,90C 6,780 3.620 2,600 2,270 9 4,200 6,100 7,600 11,800 28,200 31,000 24,100 13,10C 6,370 3,050 2,570 2,270 10 4,100 4,700 6,300 11,100 27,800 34,400 24,100 12,400 7,080 3.320 2,500 2,380 11 4,200 4,600 S.S20 10,600 24,800 36,900 22,300 11,800 6,570 3.520 2,380 2,500 12 4,300 5,000 8,300 9,560 22,600 34,6OO 21,000 11,100 6,470 3.320 2,320 2,570 13 4,600 5,000 7,300 S,920 21,000 32,400 19,900 10.80C 6,680 3.230 2,330 2,570 14 4,700 5,100 7,400 8,610 19,900 31,000 19,100 10,2OC 6,980 S.14O 2,600 2,670 15 4,700 5,2OO 7,200 8,610 19,100 31,400 18, TOO 9,780 6,570 3.140 2,440 2,480 IB 4,800 5,600 7,000 8,600 18,70O 32,000 18,400 9,460 6,270 8 880 2,380 2,640 17 4,800 6,700 7,000 8.400 18,600 30,800 10,300 9,240 6,170 3-140 8,870 18 4,800 8,000 7,100 8,100 13,600 89,600 18,000 9,030 5,860 3.140 2,380 S£S 19 4,700 10,600 7,100 7,800 18,600 SS.TOO 17,886 8,SO£ 8.760 3.280 2,880 2,930 20 4,600 11,500 7,000 7,800 18,800 27,800 16,600 6,400 6,660 3 OW S,S7O 2,930 at 4,500 10,000 6,800 10,400 ie,60o 26,100 16,400 8,200 6,350 2.670 2,320 2,930 22! 4,600 7,70O 6,700 30,600 18,800 23,500 16,800 8,OW 6,160 2,990 , 2,380 2,840 Mi 4,700 6,900 7,000 39,900 2l,6OO 22,200 16,500 8, SOt 6,150 9,140 e, sec 2,840 ?A 4,8OO . 6,500 13,900 41,700 31,800 21,000 16,600 7,70C 6,040 3.060 2,320 3,020 25 4,600 6,500 24,100 40,400 31,200 20,100 15,200 7,400 4,740 2,960 2,920 3,120 26 4,700 6,900 23,700 36,400 30,200 19,400 14,700 7,300 4,940 2,870 2,320 3,120 srr 4,400 6,900 24,400' 55,700 28,500 19,200 14,300 7,20C 4,840 2,790 2,440 3,210 28 4.5OO 7,200 19,600 55,300 26,600 21,100 14,700 7,OOt 4,740 2,640 2,670 3,210 29 4,700 8,610 21,400 33,100 - 21,900 20,900 6.90C 4,430 2,640 2,600 3.300 4,900 8,400 23,000 34,200 _ 22,300 24,500 6,600 4,230 2,640 2,5QO 3, BOO 31 4,800 " 20,400 37,400 - 25,500 - 6,40C « 2,710 2,380 Second- BaiLQft ia foot-days 1llll*'mH* acre-feet 136,800 4,900 3,900 4,466 874,100 191,710 11,600 4,600 6,390 380,300 December...... 348,820 86,700 $,700 11,250 691,900 Calendar year 1942 ...... 4,1765,330 48,300 2,670 13,060 0,482,000 Jaittwry , , . , , ... 684,800 41,700 7,600 20,160 1,235,000 PobrBftJv 688,700 36,700 18,600 84,600 1,366,000 March 798,700 36,909 19,200 28,760 1,654,000 jtoril 593,400 26,600 14,800 19,780 1,177,000 Ma? 346,800 82,500 6,400 11,140 604,760 4,330 July...... 108,990 4,330 2,640 3,300 808,900 August ...... -^ 76.18O 2,710 8,880 $,426 142,100 September...... 81,010 3,500 *,270 2,700 160,700 Water year 1942- i3 ...... 4,178,080 41,700 2,220 11,460 8,287,000 Time baa lat Pa Iflc war time. To convert war tlna fco eten Sacramento River below Wilkins Slough, Calff. Location.- Water-stage recorder, lat. 39°00'35", long. 121°49'25", in Jimeno Grant, 1,600 feet downstream from Wilkins Slough, Colusa County, and 6 miles southeast of Grimesi Zero of gage is set to datum of Corps of Engineers, U. S. Army. Records available,- August 1931 to October 1939 (low-water periods only) and June 1948 to September 1943 in reports of Geological Survey. 1931-43 (gage heights for" high- water periods), and 1939-43 (discharge), in reports of Division of Water Resources, Department of Public Works, State of California. Extremes.- Maximum discharge during year, 33,300 second-feet Jan. 25 (gage height, 49.41 feet); minimum, 1,390 second-feet Aug. 19 (gage height, 19.82 feet). 1940-43: Maximum discharge, 26,600 second-feet Feb. 8, 1942 (gage height, 52.29 feet)'. 1931-43: Minimum discharge recorded, 100 second-feet Aug. 1, 1931 (gage height, 14.20 feet). Remarks.- Records good except those for days of rapidly changing stage, which are fair. Plow regulated by storage, many diversions above statlon-for Irrigation, and bypassing for flood control. Cooperation.- Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California. Rating tables, water year 1942-43 {gage height, In feet, and discharge, In second-feet) Oct. 1 to June 30 July 1 to Sept, SO 23.0 2,930 40.0 15,400 19 .6 1,390 25.0 4,190 45.0 19,400 21.0 1,370 30.0 7,SOO 50.0 24,OOO 22.0 2,350 35.0 11,600 23.0 2,930 25.0 4,190 Discharge, in second-feet, water year October 1942 to Septenber 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 3,930 4,970 8,480 18,900 82,100 20,500 20,700 20,000 5,540 3,490 1,950 1,«30 2 3,300 4,900 S,250 18,700 21,800 20,2OO 20,4OO 19,400 6,340 3,610 1,910 1,590 3 3,740 4,830 S,100 1S,9OO 21,400 19,900 20,200 18,400 9,450 3,610 1,790 1,670 4 3,800 4,330 3,480 19,100 21,100 19,500 20,000 17,300 9,600 3,360 1,670 1,710 5 3,S60 4,970 8,400 18,000 20,900 19,000 19,900 16,200 e.sso 3,430 1,680 1,750 6 4,060 5,260 7,950 16,200 20,700 13,900 19,800 15,400 8,100 3,130 1,670 1,750 7 4,120 5,330 7,650 14,700 20,500 19,900 20,400 14,500 7,500 2,930 1,750 1,76O 8 , 4,260 5,400 7,650 13,500 20,400 20,600 20,300 13,800 6,910 2.S10 1,S30 1,710 . 9 4,470 5,400 7,880 12,500 21,000 21,200 20,300 12,900 5,970 2,300 1,750 1,710 10 4,400 5,260 8,160' 11,800 21,000 21,700 20,400 12,200 6,260 2,35O 1,710 1,790 11 4,40O 5,040 3,850 11,200 20,600 22,000 20,000 11,400 6,400 2,630 1,630 1,950 12 4,400 5,180 8,S50 10,600 20,200 21,900 19,700 10,700 5,900 2,630 1,650 2,050 13 4,620 5,330 8,400 9,750 19,700 21,700 19,200 10,200 6,040 2,510 1,590 8,100 14 4,330 5,400 7,950 3,300 19,100 21,500 1S,5OO 9,820 6,400 2,400 1,670 2,200 15 4,830 5,470 7,580 9,150 18,400 21,500 18,000 9,380 6,190 2,350 1,670 2,150 16 4,830 5,610 7,360 9,080 18,000 21,600 17,SOO 8,920 5,830 2,35O 1,630 2,16O 17 4,900 6,480 7,280 9,000 17,700 21,500 17,700 8,700 5,610 2,350 1,510 8,35O 18 4,970 7,360 7,360 8,7SO 17,600 21,300 17,400 8,400 5,400 2,300 1,470 2,460 19 4,900 9,660 7,360 8,480 17,600 21.200 17,000 7,880 5,110 2,35O 1,430 2,630 20 4,900 11,600 7,360 8,020 17,700 21,000 16,400 7,430 4,900 2,350 1,470 2,810 21 4,830 10,600 7,280 9,080 17,700 20,700 1S.OOO 7,360 4,69O 2,150 1,510 2,930 22 '4,760 e,980 7,130 19,800 17,700 20,400 16,700 7,280 4,470 2,060 1,630 2,870 23 4,760 7,380 7,280 28,400 18,400 20,100 15,700 7,130 4,330 2,200 1,630 8,990 24 4,830 7,130 10,300- 22,900 21,100 19,800 18,200 6,910 4,540 2,250 1,590 3,180 25 4,900 6,840 18,400 23,800 21,300 19,400 14,600 6,700 4,060 2,200 1,690 3,430 26 4,900 6,990 20,900 82,600 21,300 19,000 14,300 6,480 4,260 8,150 1,630 3,610 27 4,680 7,210 20,500 22,100 21,100 18,600 14,000 6,330 4,260 2,050 1,750 3,740 28 4,470 7,210 19,100 22,000 80,900 19,400 13,900 6,190 4,060 1,950 1,870 3,800 29 4,690 8,180 IS, 900 21,900 - 19,800 17,000 5,970 3,930 1,870 1,870 3,800 30 4,900 8,850 20,2CO 21,900 - 19,900 20,100 5,830 3,490 1,870 1,830 3,800 31 4,970 - 19,400 22,100 - 20,400 - 5,610 - 1,910 1,790 - Second- Runoff in Month foot-days Maximum Minimum Mean acre-feet October...... :...... 140,650 4,970 3,740 4,537 279,000 November...... 198,110 11,600 4.S30 6,604 392,900 December ...... 328,760 20,900 7,130 10,610 668,100 Calendar year 1942 ...... 4,007,960 26,300 1,660 10,980 7,949,000 January...... 485,040 23,200 8,020 15,650 968,100 February 557,000 88,100 17,600 19,890 1,106,000 March...... 634,100 22,000 18,600 20,460 1,258,000 April...... 540,600 20,700 13,900 18,080 1,078,000 Hay...... 324,780 20,000 5,610 10,470 644,100 June ...... 174,890 9,600 3,490 5,830 346,900 July...... 77,940 3,610 1,870 2,514 164,600 August ...... 51,970' 1,950 1,430 1,676 103,100 September...... 74,060 3,800 1,690 2,468 146,900 Water year 1942-43 ...... 3,887,880 83,800 1,430 9,830 , 7,117,000 Note.- stage changed rapidly Dec. 24, 85, Jan. 21, 22, Apr. 29. Time basla; pacific war time. To convert war time to standard time, subtract 1 hour. 278 SACRAMENTO RIVIR MAIN STEM Sacramento River at Knights Landing, Calif. Location*- Water-stage recorder, lat. 38°48-'10", long. 121°42'55", In irei sec. 14, T. 11 , N.,- R. 2 E.., Just upstream from Southern Pacific Railroad bridge at Knights Landing. Zero of gage Is set to datum of Corps of Engineers, U. S. Army. Auxiliary gage Is water-stage recorder at station at Verona. Records available.- April 1921 to October 1939 (low-water periods only) and June 1940.to September 1943 In reports of Geological Survey. 1926-42 (gage heights Tor high-water periods), and 1939-43 (discharge), In reports of Division of Water Resources, Department of Public Works, State of California. Extremes.- Maximum daily discharge during year, 25,100 second-feet Jan. 25; maximum gage height, 39.64 feet Jan. 25; minimum dally discharge, 1,630 second-feTt Aug. 13; minimum gage height, 10.98 feet Aug. 19. 1940-43: Maximum discharge* 27,900 second-feet Feb. 9, 1942; maximum gage height, 41.83 feet Feb. 8, 1942. 1921-43: Minimum discharge recorded, 250 second-feet July 23, 19^1 (gage height, 7.80 feet). Remarks.- Records good. Flow regulated by storage, many diversions for Irrigation, and bypassing for flood control; considerable return water from irrigation. Discharge computed by using fall as a factor. Cooperation.- Records collected and prepared In cooperation with Division of Water Re sources, Department of Public Works, State of California. Discharge, in second-feet, water year October 1942 to September 1943 Day Dot. Nov. Deo, Jan. Feb. Mar. Apr'. May June July Aug. Sept. 1 6,130 5,810 9,330 80,700 83,600 88,700 88,100 81,100 5,470 3,430 1,980 2,070 2 5,840 5,090 3,910 80,100 83,600 88,800 81,700 20,300 6,110 3,490 2,060 1,940 3 5,360 4,900 3,740 80,000 88,900 81,700 21,600 19,000 8,930 3,590 1,960 4 5,480 4,980 8,800 81,000 88,800 80,900 81,600 17,600 10,300 3,410 1,830 2,080 5 5,100 5,010 9,160 80,100 88,400 80,300 81,100 16,300 9,8SO 3,440 1,700 2,100 6 4,860 5,300 8,860 13,100 88,4OO 19,400 80,900 15,400 9,810 3,350 1,640 2, ISO 7 4,780 5,680 8,410 16,300 88,400 19,700 81,600 14,500 3,240 3,090 1,780 2,800 8 4,630 5,710 8,160 14,800 88,200 81,400 21,800 13,600 7,280 2,980 1.S20 8,180 9 4,830 5,610 8,480 13,600 88,800 81,500 21,300 12,900 6,680 2,670 1,940 2,160 - 10 4,640 5,490 8,730 18,800 83,100 20,700 22,000 18,100 6,310 2,330 1,870 2,330 11 4,930 5,850 9,350 18,300 88,900 88,300 81,800 11,400 6,780 8,490 1,800 8,460 12 4,660 5,840 9,630 11,700 28,400 83,000 81,100 10,800 6,340 8,610 1,880' 2,850 13 4,770 6,470 9,270 10,800 81,600 83,000 80,300 10,0)0 a,i90 8,470 1,830 2,790 14 5, ISO 5,560 8,630 10,100 30,700 88,600 19,800 9,900 6,460 2,380 ' 1,6&0 2,910 15 5,170 5,660 8,190 9,840 80,000 81,900 10,600 9,480 6,580 ' 8,280 1,780 3,080 16 5,170 e, no 7,900 9.790 19,300 88,400 18.100 9,110 6,870 ^ 8,190 1,790 3,160 17 5,170 6,440 7,770 91680 18,900 88,800 17.600 a,s4O 6,800 2,190 1,740 -3,590 18 5,190 7,610 7,700 sJagO 18,900 88,300 17,400 8,520 5,950 2,180 1,710 3,710 ia 5,810 9,140 7,840 9,090 18,900 22,200 16,700 8,060 5,670 2,200 1,660 3,830 20 5,060 18,000 7,900 6,880 19,100 88,800 16,100 7,590 4,990 8,310, 1,660 3,770 5,040 '11,800 7,890 6,650 19,900 81,900 15,600 7,580 4,940 2,800 1,760 3,840 22 4,880 10,400 7,640 14,600 19,000 81,600 15,400 7,390 4,660 8,110 1,850 3,870 25 4,880 9,110 7,660 88,300 18,900 81,600 15,400 7,380 4,400 2,130 1,930 3,960 24 4,900 8,090 8,440 83,900 88,100 81,400 14,900 7,030 4,660 2,300 1,970 4.1OO 25 5,160 7,490 16,000 85,100 83,100 81,000 14,400 6,790 4,860 2,890 1,980 4,390 26 5,110 7,460 88,800 84,900 83,800 80,300 14,000 6,610 4,160 8,870 8,030 4,710 4,810 7,790 83,000 84,300 83,300 19,400 13,700 6,680 4,340 E,210 8,040 4,820 28 7,830 81,300 84,100 23,000 18,600 13,400 6,360 4,100 8,210 4,830 29 4,89ti 8,310 19,800 23,600 .. 30,700 15,600 6,800 4,010 IjoBO 8,430 4,810 30 4,960 9,890 81,800 82,800 _ 80,700 80,400 6,080 3i630 1,960 8,370 4,740 31 6,070 81,300 88,400 - 21,800 ~ 6,030 1,976 8,810 " Second- Ronof f in Month foot-days Maxima Mlnimm Meaa acre-feet Deoeober...... 347,690 83 ,OOO 7,640 11,810 689,400 Calendar year 1948 ...... 4, 161, BOO 87,400 8,880 1U4OO 8,866,000 January . 31 44O May...... 330.600 21,100 10,860 655,500 1 On ITOft July...... ,...... :...... 3,590 1,950 8,635 165,900 1,630 Sou^Hibor 97,330 4,830 1,940 3,244 193,100 Water year 1942-43 ...... 3,796,100 86,100 1,630 10,400 7,589,000 Ti»e tmalBI Pacific-war tj»a. To ooarart war tJa* te t*8&ax« tin** «ubter»ot 1 boar. SACRAMENTO RIVER MAIN STEM 279 Sacramento River at Verona, Calif.. location.- Water-stage recorder, lat. 38°46'50", long. 121-°36' 15", in SEi sec. 23, T. , J1 N -1 R- 3 E., three-quarters of a mile southeast of Verona and 1 mile downstream from Feather Rivar. zero of gage is set 0.06 foot below datum of Corps of Engineers, u. s. Army. Record? available.- May 1926 to September 1943 (1926-29, low-water periods orly). Average discharge^- 14 years (1929-43), 17,470 second-feet. Extremes-- Maximum discharge during year, 67,400 second-feet Jan. 25 (gage hele-ht 37.7t> feet); minimum, 2,360 second-feet Aug. 20 (gage height, 8.07 feet). ~ 1926-43: Maximum discharge, 79,200 second-feet Mar. l, 1940 (gage height, 41.20 feet); minimum, 281 second-feet July 24, 1931 (gage height, 6.93 feet). 1934-43: mximum confcined discharge of Sacramento River at Verona and Fremont weir, about 315,000 second-feet Mar. 1, 1940. ~ R9COrds good, storage, many diversions, and considerable return weter affect When discharge is larger than 55,000 second-feet, flow begins over Fremont i r Put£ "P?tream) lnto Yolo Bypass (see p. 356). Elevation of crest of Fremont weir is 33.5 feet (Corps of Engineers, U. S. Army, datum). Discharge, In second-feet, water -year October 1948 tc September 1943 Day Oot. Jtov. Dec. Jan. Feb. Mar. Apr. May June July Auf. Sept. 1 7,880 7,400 16,600 50,200 61,700 50,500 50 V7^ 45,500 13,800 5,980 3,160 3,160 2 8,040 7,240 15,800 46,600 60,400 48,400 51,800 44,800 21,200 5,850 3,C50 3,060 3 e,O40 7,080 15,000 .43,000 58,500 45,500 50,500 43,500 25,800 5,850 2, £40 3,160 4 8,200 7,400 16,100 40,000 56,800 43,000 49,400 41,500 24,000 5,720 2,6W 3,060 S 8,040 7,880 15,600 36,500 55,500 40,800 48,600 39,800 21,700 5,590 2,f50 3,260 6 7,680 8,040 14,800 32,600 54,200 40,800 48,600 36,500 19,400 5,350 2,f40 3,260 1 7,560 7,880 14,200 29,200 52,800 44,800 49,800 34,600 16,800 4,990 2,f40 3,160 8 7,400 7,880 14,400 26,300 51,800 48,100 49,400 32,700, 14,600 4,750 2.T30 3,260 9 7,660 7,880 14,000 23,700 52,000 51,500 50,200 30,400 12,700 4,390 2,T30 3, 36'0 10 7,660 7,880 13,800 21,700 51 ,800 56,800 50,700 27,400 11,900 3,930 2/-30 3,260 11 7,720 7,720 14,000 20,300 50,700 60,6OO 50,200 24,200 12,100 3,930 2,T30 3,470 12 7,720 7,720 14,400 19,000 48,600 61,400 48,100 22,800 11,700 4,150 2,f30 4,050 13 7,720 7,860 14,000 17,900 45,800 60,400 45,800 21,900 11,700 2,040 2,F40 3,930 14 7,880 8,040 13,400 17,000 42,800 59,300 43,500 20,300 12,700 3,930 2,730 4,050 16 7,880 8,040 12,600 16,400 40,000 58,500 42,000 19,000 11,900 3,820 2,f30 4,170 18 7,880 8,370 12,600 15,900 37,500 58,200 41,500 18,100 11,100 3,710 2,f30 4,290 IT 7,880 9,750 12,400 15,700 36 ,100 57,700 41,500 16,800 10,500 3,710 2,730 4,810 18 7,720 14,600 12,200 15,300 36,100 56,800 48,000 15,900 9,760 3,710 2,f30 &.070 19 7,720 25,600 12,200 14,800 34,600 56,300 42,000 15,500 9,040 3,710 2,f*0 5,460 20 7,400 25,600 12,800 14,600 34,100 55,500 41,600 14,200 8,860 3,710 2,f40 5,200, 21 7,400 21,000 12,000 19,000 34,100 54,700 10,500 14,800 8,340 3, no 2,f40 5,330 22 7,400 17,600 12,000 50,700 34,100 53,600 39,000 14,800 8,000 3,490 2,F60 5,690 23 7,400 15',400 12,800 61,400 36,190 52,800 38,000 14,400 7,680 3,360 2,P60 5,590 24 7,400 13,800 21,000 65 ,500 40,800 51,200 37,000 14,800 7,490 3,600 2.P60 5,860 25 7,400 12J800 35,700 67,100 45,300 49,400 36 ,300 15,500 7,320 3,600 2,P60 6,150 26 7,560 13,800 42,100 65,800 49,200 47,100 35,600 15,000 6,850 3,380 3,060 6,760 27 7,400 13,400 44,200 63,600 51,800 45,000 33,900 14,6OO 7,000 3,270 3,060 6,760 28 7,400 14 ,800 42,600 62,000 51,500 44,000 33,800 14,400 6,700 3,270 3,160 6,920 29 7,240 16,300 46 ,300 60,600 « 44,200 38,000 14,400 6,550 3,160 3,470 6,920 30 7,240 16,600 52,600 59,800 «. 45,500 43,800 13,800 6,260 3,160 3,360 7,080 31 7,400 - 53,900 61,400 - 48,600 - 12,900 " 3,160 3,260 - Seccnd- Runoff in Month fcot-days Maximum MiniBum Mean acre-fe*t October...... 236,600 8,200 7,240 7,632 469 ,300 Moveaber...... 352,480 25,600 7,080 11,750 699 ,100 December...... 653,900 53,900 12,000 21,090 1,297,000 Calendar year 1942 ...... 9,274,610 76,900 3,360 25,410 18,400,000 January 1,153,900 67 ,100 14,600 37,220 3,289,000 February...... 1,303,100 61,700 34,100 46,540 3,585 ,OOO March...... 1 ,589 ,800 , 61,400 40,200 51,280 3,iS8,poa April ...... 1,312,200 51,500 33,200 43 ,740 2,603,000 ' Hay...... 723,000 45,500 12,900 23,320 1,434,000 Jims . . 363 ,430 25,800 6,260 12,110 720,900 July...... 128,000 5,980 3,160 4,129 253,900 . August ...... ;...... 88,560 3,470 2,540 2,650 175,300- September...... 139,460 7,080 3,060 4,649 276^600, Water year 1843-43 ...... 8,044,230 67,100 2,540 22,040 15,860,000 'Pacific war time. To convert war' tlae to standard time, subtract 1 hour. 280 PIT RIVER BASIN Pit River near Canby, Calif. Location.- Water-stage recorderv lat. 41°24', long. 120°55', In SWi sec. 10, T. 41 N., R, 9 K., at lower end of Warm Spring Valley, 4 miles southwest of Canby. Altitude of gage, about 4,300 feet (from topographic map). Drainage area.- 1,430 square miles, excluding Goose Lake Basin. Records available.^ January 1904 to December 1905, May 1929 to September 1943 (1929-31 incomplete). Average discharge.- 12 years (1931-43), 212 second-feet. Extremes.- Maximum discharge during year, 3,290 second-feet Jan. 22 (gage height, 7.61 feet); minimum, 5.5 second-feet Oct. 28. 1904-5; 1929-43: Maximum discharge recorded, 17,000 second-feet Mar. 8, 1904 (gage height, 14.0 feet, former datum); minimum, 0.1 second-foot Apr. 29, Aug. 5, Sept. 18, 1934, Aug. 18-21, 1935. Remarks.- Records good except those for periods of Ice effect or no gage-height record, which are fair. Flow regulated by storage and diversions above station for Irrigation. Discharge, in second-feet, water year October 1943 to Septenber I'HS Day Oct. Nov. Dec. Jan. Feb. , ^Mar. Apr. May June July Aug. Sept. 1 69 29 151 758 360 1,300 836 932 214 95 90 101 62 2 87 28 162 686 305 1,190 75S 1,020 340499 62 69 S 32 21 151 604 300 1,130 716 1,020 47 56 51 4 84 21 144 356 305 1,140 698 960 554 49 22 46 S 17 42 132 260 346 1,230 722 914 604 42 25 44 6 38 69 113 205 375 1,360 746 S54 576 37 37 60 7 33 98 98 151 428 1,680 740 788 576 38 36 122 8 81 98 95 140 444 1,930 758 728 687 65 30 85 9 32 119 98 155 428 2,370 770 700 582 233 26 129 10 33 107 101 162 375 2,640 758 660 546 134 20 283 11 32 S7 107 156 355 2,670 764 a620 494 101 12 166 12 30 96 110 155 310 2,370 734 570 444 92 9.5 151 13 87 90 113 144 300 2,240 698 540 422 104 11 1S6 14 87 104 116 119 330 2,130 668 510 436 104 29 116 IS 27 116 129 116 365 1,960 650 480 385 107 35 S2 16 18 98 136 113 395 1,620 644 460 355 92 37 49 17 15 110 129 b!05 543 1,600 662 440 340 72 65 49 Ifi 12 185 116 blOO 758 1,340 680 483 250 m. 86 58 12 144 110 101 932 1,170 704 433 E10 67 88 62 20 33 164 101 86 1,010 980 716 428 101 67 74 60 21 87 161 92 1,02» 1,140 818 738 406 ee 86 65 66 28 44 185 96 2,820 1,840 TIB 798 876 BS 8C 79 104 ZH ai 110 101 1,740 2,500 626 704 339 144 62 101 139 16 110 iss 1,650 S.13O 676 ess 166 S14 40 98 85 25 10 110 192 1,830 1,970 532' 698 188 E18 SO 8» 79 am 7.6 113 868 1,320 1,790 533 674 171 144'179 so 66 67 31 6.6 113 310 1,030 1,630 67« «38 870 86 56 67 28 6 110 416 848 1,470 606 6BE 156 104 m 49 60 28 69 116 638 686 7*« 986 96 101 85 60 6654 30 132 132 768 5S8 *. 866 7B8 60 101 SO 9E 31 60 - 812 450 * 878 " TO " 67 101 " Second- Rnnof f In Month foot-days MaxiBtin Minimua Hean acre-feet October...... 52 S 2 909 81 cm ,f) Deoeober...... 6,093 818 98 19^ 12,090 Calendar year 1942 ...... 118,880,0 3,070 5 326 235,700 January 17 77^4 PsbTwiry SOD H&*&h Am*...... 6O4 SO fcMMjfl* Sa&tetatonr ,...,...... >,..., ... . , 8,617 B23 44 5,190 6' *a**r p«r 194E-43 ...... 14C,*88.6 2,820 «a 290,400 «*c,~ft.! Feb. 85 (4 »,,».) E.S6O 8*e.~*%.j Ktot, 11 **.T 2,776 s*».-**t. * Bo rel*t ise. Ttae ^a Aa ; PmotTie «KT time. To oonvort war - ttee, BBbfer«et 1 boor. PIT RIVER BASIN 281 Pit River at Fall River mils, Calif. Location.- Water-stage recorder, lat. 41°00', long. 121°26', In NBi sec. 6, T. 3<5 N., R. 5 E., 0.8 mile downstream from Fall River and town of Fall River MlllB. Altitude of gage, about 3,235 feet (from topographic Bap). Jralnaee area.- 4,150 square miles, excluding Goose Lake Baffin. Records available.- December 1922 to September 1943. Ksrch 1921 to December 1922 at site 0.7 mile upstream. Average discharge.- 20 years (1923-43), 470 second-feet (excluding flow of Fall River). Extremes.- raxlmum discharge during year, 11,000 second-feet Jan. 21 (gage height, 7.30 feet); minimum, 62 second-feet Aug. 18. 1921-43: Maxlimim discharge, 28,600 second-feet Dec. 12, 1937 (gage height, 11.8 feet), from rating curve extended above 9,000 second-feet on basts of velocity-area and AVer studies; minimum, 12 second-feet Aug. 5, 1926, Oct. 23^ 1936. ' Remarks.- Records good. Fall River is diverted through Pit No. 1 power house and re turned to pit River below station. Many snail reservoirs and diversions above station for Irrigation. River receives return flow from McArthur, Khoch, and other diversions above station. Cooperation.- Water-stage recorder graph furnished by Pacific Gas & Electric Co. Rating table, water year 1942-43 (gage height, ID feet, and discharge, 1U second-feet) 0.4 S3 1.8 520 3.5 2,190 5.5 5,950 .6 81 2,2 795 4.0 2,950 6.0 7.2OO .8 118 2,6 1,130 4.5 3,820 6.5 8,600 1.0 17O 5.0 1,550 5,0 4,800 7.0 10,100 1.4 310 Discharge, in second- feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 116 120 302 1,710 1,570 3,460 a2 ,400 1,670 170 194 78 90 2 106 132 310 1,910 1,260 3,170 2 ,270 1,620 188 167 88 84 3 104 173 302 1,720 1,200 2,810 2 ,060 1,610 269 185 84 75 4 104 170 315 1,400 1,330 2,620 1 ,880 1,61 0 310 182 98 96 5 106 150 a308 1,110 1,470 2,630 1 ,770 1,560 398 162 100 98 6 104 142 a301 S32 1,5OO 2,890 1 ,730 1,460 902 125 93 116 7 98 118 a 294 637 1,660 3,390 1 ,720 1,380 780 118 95 123 8 106 106 a287 526 2,260 4,220 1 ,740 1,300 772 185 96 120 9 123 102 aESO 433 2,040 5,220 1 ,870 1,19!0 750 227 96 116 10 130 123 a273 381 1,710 6,250 1 ,870 1,110 728 159 91 110 11 140 145 266 366 1,510 6,450 1 ,770 1,020 750 150 83 123 12 135 164 270 a356 1,420 6,380 1 ,650 918 735 259 83 120 13 132 179 278 B556 1,550 5,820 1 ,550 910 720 270 81 142 14 120 176 278 356 1,660 5,240 1 ,480 848 713 224 91 185 15 US 186 282 S47 1,920 5,650 1,380 802 671 191 90 148 16 98 19-4 282 6345 1,910 5,220 1 ,300 772 643 167 81 137 17 93 220 282 a345 2,000 4,460 1 ,840 735 552 200 66 135 18 86 294 278 a346 2,150 3,910 1 ,810 720 472 200 75 145 19 96 342 252 aS46 2,250 3,410 1 ,190 699 472 185 88 207 20 114 302 234 a360 2,400 2,930 1 ,190 650 466 140 74 156 21 114 a296 259 3,280 2,620 2,560 1 ,810 650 433 132 95 116 22 132 a290 394 9,200 4,090 2,300 1 ,230 643 310 135 98 102 23 142 a364 371 9,890 6,480 2,090 1 ,820 645 179 173 83 110 24 98 a278 630 7,180 7,300 1,880 1 ,810 502 162 220 72 106 25 100 a272 1,120 5,000 5,850 1,720 1 ,190 455 167 182 75 108 26 112 a266 , 918 3,960 4,740 1,610 1 ,210 319 197 164 98 IDS 27 93 259 910 3,680 4,120 B2,100 1 ,240 156 207 150 93 118 28 120 278 1,600 3,620 5,800 a2,300 1 .510 114 185 132 81 142 29 135 306 2,230 3,640 - aS,450 1 ,650 170 207 118 88 173 30 114 310 2,190 3,430 - a2,500 1 ,670 256 227 '112 95 203 31 132 ~ '1,840 2,400 ~ a2,550 - 188 - 98 90 Second- ^ Runoff in Month f cot-days Maximum Minimum *ean acre-feet October...... 3,521 142 86 114 6,980 November ...... 6,379 343 102 213 12,650 December...... 18 ,036 2,230 234 582 35,770 Calendar year 1942 ...... 308,437 11,000 60 845 311,800 January...... 69,450 9,890 346 2,240 137,800 February...... 73,770 7,300 1,200 2,635 146,300 March...... 110,190 6,450 1,610 3,655 218,600 April ...... 46,610 2 400 X *114190 1,554 92,450 2ay...... 26,680 1*670'902 861 52,920 Jane ...... 13,625 162 454 27,020 Jnly...... 5,306 270 98 171 10,520 August...... 2,699 100 66 87.1 5,350 September...... 3,806 207 75 127 7,550 Water year 1942-4& ...... 380,072 9,890 66 1.041 ' 76S.900 (11Peal;eafc dlsohadischarge.- Jan. 21 (8 p.m.) ll.OOQ see.-ft.) Jan. 23 (12:30 p.m.) 10,600 sec.-ft,; Feb. 24 a.m.) 7,450 sec.-ft.} Har. 10 (2 p.m.) 6,500 see.-ft. a Ho gage-height record; discharge computed on basis of unpublished records for Fit River below Pit No. 4 dam. asist Paelflc war time. To convert war tine to standard time, subtract 1 hour. 6U5906 O - *4 - 18 282 PIT RIVER BASIN Pit River at Big Bend, Calif. Location.- Water-stage recorder, lat. 41 001', long. 121°55', In sec. 31, T. 37 N., R. 1 t1 ., at settlement of Big Bend, half a mile downstream from Nelson Creek and 1 mile upstream from Kosk Creek. Datum of gage Is 1,674.47 feet above mean sea Isvel, datum Of 1929. Drainage area.- 4,920 square miles, excluding Goose Lake Basin. neco: available.- September 1910 to September 1943. Aver; discharger- 32 years (1911-43), 2,878 second-feet. "ExYri :.- Maxlmita discharge during year, 18,200 second-feet (regulated) Jan. 22 (gage helgtif, 13.55 feet); minimum, 1,290 second-feet (regulated) Sept. 28 (gage lielght, 7.38 feet). 1910-43: Maximum discharge, 34,200 second-feet Dec. 12, 1937 (gag-s height, 16.26 feet), from rating curve extended above ll rOOO second-feet on basis of velocity-area studies; minimum dally, 692 second-feet (regulated) July 9, 1925. Remarks..- Records excellent. Flow regulated by storage, power plants, and many di- versions above station; dally fluctuations usually reduced by automatic regulator at Pit No. 4 dam. Rating table, water year 1942-43 (gage heignt. In feet, and discharge, in second-feet) 7.9 1,660 8.6 2,B4O 9.6 4,570 11.0 8,800 8.0 1,990 8.0 3,150 9.9 5,2OO 11.5 9,850 8.2 2,860 9.0 3,48O 1O.8 5,890 12.O 11,680 8.4 - 8,840 9.3 4,000 10.6 6,970 18.7 14,400 Discharge, in second- feet, water year October 1948 to September 19 <$ Day Oct. Hov. Deo. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 2,260 2,070 2,740 4,410 8,420 6,600 6 ,430 5,240 3,150 2,701 2.O40 2,400 2 2,150 2,200 2,810 4,370 4,53O 6,140 e ,380 5,040 3,380 2,661 2^ !30 2,360 1.960 2,460 2,800 4,390 4,13O 5,980 5 ,880 5,080 3,360 8,301 2,! 90 2,880 1,960 2,560 2,760 4,800 4,070 5,650 5 ,870 5,070 3,330 2,301 2,' SO 1,980 5 8,190 2,480 2,470 3,910 4,180 5,580 5 ,80O 4,880 2,96O 2,441 2,330 1,990 6 2,430 2,430 2,460 3,800 ,240 5,920 5,580 4,780 2,940 2,601 2,640 2,190 7 2,340 2,120 2,570 3,750 ,410 6,910 5,530 4,610 3,510 2,531 2,360 2,230 2,O2O 2,800 3.740 ,790 7,760 5,720 4,510 3,460 2,401 1,900 2,370 9 2,180 2,230 2,700 3,340 ,880 9,210 5,770 4,220 3,430 2,401 2,160 2,320 10 2,000 2,370 2,660 2,860 ,790 10,700 5,490 4,130 3,510 2,321 2,600 2,360 11 2,110 2,440 2,530 2,180 ,330 10,600 5 ,290 4,160 3,680 2,261 2,480 2,070 2,390 2,480 2,330 2,580 ,150 10,500 5 ,400 3,960 3,810 2,371 2,410 2,000 13 2,430 2,530 2,370 2,SOO ,070 10,100 5 ,150 3,860 3,160 2,831 8,150 14 2,410 2,360 2,470 2,720 ,090 10,100 5 ,090 3,910 9*310 2,811 1,'960 8,400 15 2,440 2,300 2,630 \8,640 ,490 9,990 6 ,040 3,960 3,330 1,960 2,480 16 2,290 2,460 ^,700 2,400 ,37O 9,820 .9*0 3,6TO 3, SCO e,eei 8,190 2,600 2,160 2,860 2,760 2,460 ,410 8,950 4,i TOO 3,700 3,160 8,30f 2,370, 2,446 18 2,080 3,150 2,680 2,870 ,710 8,100 4,630 3,520 8«°r 2,360 8,180 19 2,180 3,070 2,390 2,580 ,730 7,460 6,200 3,630 8^690 2,48 ' 2,370 2,060 20 2,370 2,780 2,360 2,640 ,920 7,090 4,840 3,580 8,600 2,661 8, SCO 2,250 21 2,430 2,300 2,440 3,310 4,960 6,270 4,81t> 3,500 2,800 2,471 2,160 2,480 2,530 2,290 S.660 11,900 6,140 5,510 4 ,820 3,280 2,940 2,461 )PO 2,470 23 2,440 2,570 2,700 14,100 9,260 5,470 4 ,800 3,070 2,87O 8,291 >Of) 84 2,040 2,700 3,150 11,900 10,200 5,200 4 ,680 3,040 2.690 2,181 2,410 2,890 25 1,98O 2,690 3,600 9,150 9,410 5,130 4,550 3,050 2,640 2,181 8,470 2,030 26 2,BOO 2,720 3,650 7,420 8,100 5,070 4 ,780 3,010 2,510 2,571 2,390 1,900 27 2,500 2,820 3,680 7,060 7,330 5,510 4 ,800 8,980 8,130 2,601 2,890 2,120 28 2,600 2,500 3,750 7,150 6,710 5,840 4 ,900 2,880 8,870 88,631 1.990 2,470 29 2,400 2,480 3,770 7,690 6,410 5 ,360 2,800 2j810 2,810 2,080 8,540 30 2,270 2,570 4,510 7,300 6,610 8 ,270 2,SSO 2>660 2,370 8,800 2,510 31 2,180- 4,610 5,990 6,740 2,890 8,081 2,39O Sscoed- Runoff in foot-days Acre-feet October ...... 70,030 November...... 76,010 3,180 2,020 8,800 148,800 Deoetfber t 90,440 2,33(1 4*vO Atv\ Calendar year 1942 ...... 1,527,640 19,600 '1,880 3,636 8,635,000 10,800 301,100 April...,,...... 157,080 6,430 4,660 5,235 311,500 May...... 117,960 6,240 2,880 3,805 234,000 9O,91O 3,580 2,130 3,030 180,300 July...... 74,900 2,700 2,030 2,419 148,700 2,600 1,900 2,854 138,600 68,300 2,540 1,900 135 ,500 Hater year 1942-43 ...... 1,349,860 14,100 1,900 3,698 8,677,000 Pacific war time. To convert war tine to standard tine, subtract 3 hew- PIT RIVER BASIN 263 Pit River near Ydalpom, Calif, Location.- Mater-stage recorder, lat. 40°46', long. 122°14', In HWj sec. 32, T. 34 11., R. 3 W., at Sllverthorne Ferry, half a mile downstream from Squaw Creek and 14 nfles south west of Ydalpom. Altitude of gage, about 735 feet (from topographic map). Drainage area.- 5,350 square miles, excluding Goose Lake Basin. Records available.- May 1924 to November 1943 (discontinued on account of flooding by Shasta Reservoir). November 1910 to May 1924 at site 400 feet downstream. Average discharge.- 32 years (1911-43), 4,038 second-feet. Extremes.- Msucimm discharge October 1942 to November 1943, 30,500 second-feet Jan. 23 Ight, 16.22 feet); minimum, 1,820 second-feet (regulated) Sept. 28. 1910-43: Maximum discharge, 65,000 second-feet Dec. 10, 1937 (gage height, 24.20 feet), from rating curve extended above 22,000 second-feet on basis of velocity-area and Ava studies; minimum, 1,000 second-feet (regulated) July 10, 1925. larks.- Records excellent. Flow regulated by storage, power plants, and many diversions above station; dally fluctuations usually reduced by automatic regulator at P't Ho. 4 dam. ' Discharge, In second-feet, 1948-43 1942-49 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May Jane July Aug. Sept. 1 2,460 2,280 3,300 6,970 9', 770 3,480 9,200 7,340 5,640 3,100 2*2TO 2,580 2 2,350 2,290 3,580 7,130 8,040 7,870 6,740 6,860 5,010 3,190 2,400 2,560 3 2,140 2,660 3,400 6,440 6,970 7,580 8,320 6,820 4,600 2,eoo 2,600 2,480 4 2,110 2,790 3,300 5,840 6,730 7,320 7,940 6,780 4,380 2,720 2,690 2,180 5 2,210 2,690 2,990 5,320 6,690 7,300 8,280 6,450 3,960 2,760 2.5RO 2,150 2,680 2,700 3,070 4,940 6,540 7,900 7,960 6,290 3,700 3,000 2,800 2,230 7g 2,580 2,400 3,340 4,770 7,180 11, 100 7,770 6,040 4,280 2,950 2.4RO 2,530 8 2,360 2,260 3,980 4,660 7,560 13, 100 8,300 5,860 4,220 2,820 2,180 2,540 9 2,360 2,300 3,840 4,490 7,460 14,200 8,100 5,590 4,140 2,760 2*150 2,500 10 2,200 2,560 3,520 3,170 7,140 14,600 7,700 5,220 4,200 2,720 2, 7^0 2,530 11, 2,320 2,630 3,300 2,870 6,490 14,100 7,160 5,440 4,280 2,630 2,720 2,300 12 2,560 2,660 2,960 3,140 6,090 13,300 7,370 5,100 4,140 2,620 2,630 2,160 13 2,610 2,750 2,930 3,410 5,930 13,100 6,970 5,000 3,920 2,860 2,560 2,210 14 2,610 2,700 2,960 3,350 5,860 17,800 6,860 4,840 3,990 2,860 2, ISO 2,500 16 2,650 2,910 3,120 3,310 6,240 15,100 6,750 4,930 4,030 2,910 2,140 2,650 16 2,520 2,920 3,170 3,050 6,090 13,500 6,690 4,340 3,880 2,960 2,2W 2,650 17 2,440 4,060 3,260 2,980 6,200 12,200 6,220 4,670 3,760 2,820 2,540 2,660 IS 2,320 5,660 3,130 3,O50 6,490 10, 800 6,350 4,510 3,640 2,410 2,640 2,430 19 2,290 3,840 2,840 3,130 6,400 9,860 6,490 4,470 3,300 2,630 2,570 2,270 20 2,600 3,380 2,760 3,370 6,580 9,380 6,380 4,410 3,140 2,960 2,5i^0 2,290 21 2,580 2,830 2,750 18, 000 6,660 8,480 6,540 4,250 3,270 2,860 2,3*0 2,580 22 2,700 2,580 3,120 24,000 9,370 7,660 6,310 4,120 3,510 2,780 2,2^0 2,660 23 2,740 2,860 3,960 26,500 12,900 7,320 6,220 3,780 3,420 2,660 2,2^0 2,560 24 2,350 3,130 6,240 18,200 12,900 7,090 6,080 3,740 3,270 2,490 2,6170 2,530 25 2,200 3,100 7,510 14,000 12,000 6,800 6,110 3,720 3,130 2,450 2,6."") 2,230 26 2,260 3,120 5,420 14,800 10, 400 7,730 6,040 3,660 3,060 2,620 2,5^0 2,110 27 2,660 3,720 5,280 13,400 9,420 8', 120 6,350 3,620 2,720 2,760 2,570 2,040 20 2,720 3,340 6,170 13,200 8,640 8,320 7,580 3,520 2,840 2,780 2,210 2,540 29 2,600 3,130 5,790 17,500 _ 9,490 8,220 3,410 3,300 2,800 2,180 2,690 30 2,530 3,200 6,130 18,500 _ 10,200 7,660 3,050 3,130 2,710 2, 2X1 2,690 31 2,380 - 6,940 12,300 - 9,710 - 3,600 " 2,350 2,6*0 ~ Peak discharge.- Dec. 25 (1 a.m.) 10,300 sec.-ft.; Jan. 21 (12 «.) 23,600 see.-ft.; Jan. 23 (12:30 a.m.) 50,500 sse.-ft.j Jan. 29 (11 p.m.) 22,700 sec.-ft.; Mar. 14 {3 p.a.) 19*200 sec.-ft. Day Oct. Nov. Day Oct. Hov. Day Oct. HOT. 1 2,570 2,520 11 2,230 2,880 21 2,930 3,030 2 2,240 2,740 12 2,450 2,860 22 2,700 2,750 3 2,030 £.860 13 2,560 2,430 23 2,340 2,930 4 2,150 2,640 14 2,710 2,300 24 2,350 2,800 5 2,530 2,840 15 2,790 2,360 25 2,450 2,800 6 6,560 2,490 16 2,140 2,700 26 2,830 2,700 7 2,570 2,390 17 1,970 2,860 27 2,840 2,530 8 2,490 2,480 18 2,570 2,820 28 2,800 2,500 9 2,160 2,740 19 2,920 2,890 29 2,740 2,460 10 2,060 2,820 20 2,980 3,020 30 2,440 2,760 31 2,410 - Monthly discharge, In second-feet, 1942-43 Seoond- Runoff in Month f oot-days' MaxiBum MiniauB Mean aore-feet October 1942 ...... November...... December...... 124,060 7,510 1 2,760 1 4,002 246,100 Calendar year 1942 ...... 1,910,020 41,000 2,080 5,233 3,788,000 S fiOA 12 900 March. , ...... 1 *7 fiftfl April...... May...... 7 «4A June ...... ooc onA July...... August ...... 75,950 2,800 2,140 September...... 73,030 2,690 2,040 2,434 144,900 Water year 1942-43 ...... 1,820,680 26,500 2,040 4,988 v, 611, 000 October 1943 ...... November...... 81,100 3,030 2,300 2,703 160,900 Tine baaiaa Pacific war time. To convert war time to standard time, subtract 1 hour. 284 PIT RIVER BASIN South Fork Pit River near Likely, Calif. Location.- Water-stage recorder, lat. 41°14', long. 120°25', In NEi sec. 11, T. 39 N., R. 13 E.~, 1.3 miles downstream from West Valley Creek and 3i miles east of Likely. Altitude of gage, about 4,580 feet (from topographic map). Drainage area.- 248 square miles. Records available.- October 1928 to September 1943. Extremes.- ffexlmum discharge during year, 484 second-feet Jan. 21 (gage height, 4.15 feet); minimum, 19 second-feet regulated Oct. 13. ' 1928-43: Maximum discharge, 1,060 second-feet Apr. 27, 1932 (gage height, 5.55 feet), from rating curve extended above 600 second-feet; minimum, O.g second-foot regu lated Feb. 3, 1941. Remarks.- Records good except those for periods of Ice effect, which are fair. Flow regu- lated by West Valley Creek Reservoir and diversions above station for Irrigation. Rating tables, water year 1942-43,except periods of Ice effect (gage height, In feet, and discharge. In second-feet) (Shlftlag-control method used Ray 1-19) Oct. 1 to Apr. 28 Apr. 29 to Sept. 30 1.9 21 2.4 63 2.9 140 3.6 366 2.0 28 2.5 78 2.0 27 2.5 76 3.0 160 4.0 432 2.1 36 2.6 C 1 2.1 35 2.6 BS 3.2 202 2.2 46 2.7 1C 6 2.2 43 2.7 104 3.4 250 2.4 66 2.B 1££ 2.3 52 2.B 122 3.6 304 Hote.- Sane as pr« - ceding table above 2.B feet. Discharge, in second- feet, water year October 1942 to September 1943 Day Oct. HOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 27 27 35 53 b30 t>64 Ill 313 39 B 103 76 156 2 29 2B 46 b46 b30 b60 133 319 39B 10B B6 94 3 32 33 41 b40 bSO b6B 1SB 32B 347 103 ]104 94 4 31 33 b34 b37 b31 56 176 331 316 102 ]103 94 5 30 30 b32 b36 1)32 55 189 331 313 9B 103 94 6 30 sa b32 b33 b32 62 189 344 293 83 102 74 7 30 32 32 b32 b32 75 219 334 284 74 3L02 56 8 30 33 33 b32 b32 99 263 310 240 76 ]133 55 9 29 29 34 b31 b31 79 23B 296 221 76 ]L52 54 10 26 29 33 b31 b30 84 224 304 209 77 148 53 11 30 29 33 b29 b30 83 219 284 219 77. 146 41 12 29 29 34 b26 b30 61 243 288 eo7 73 ]142 26 13 21 89 43 #24 b35 62 266 268 204 6"! 70 3L36 27 14 26 32 39 b23 MO 290 248 209 65 3L48 43 15 29 34 36 b22 b46 6*7 29S 255 IBS 63 168 44 16 30 33 *34 b22 62 66 319 258 164 54 166 42 SI 2B 34 33 b22 67 59 340 233 156 66 1 68 41 18 £6 44 31 bSI 73 51 356 812 ' 164 74 ]166 41 19 26 SB 30 bSl 80 48 340 200 170 71 1.66 41 20 26 b33 30 b20 108 44 504 195 156 73 170 41 21 £6 b36 30 M.74 162 44 310 198 146 83 170 42 22 26 37 31 82 25S 42 290 200 148 84 ] 66 41 23 26 37 33 53 166 41 304 212 133 94 1 62 39 24 26 42 46 40 9B 42 319 233 186 73 1 6O 37 25 £6 37 46 b36 73 43 353 250 1£S '63 187 3B 26 26 36 b70 b33 70 53 325 268 106 68 207 36 27 27 3S 101 b32 bSB 68 313 860 100 53 £ 00 31 28 27 42 133 b31 b66 80 425 355 98 S2 £100 32 29 2B 4S 6B b30 _ 9S 353 840 100 56 S»0 32 30 29 52 56 bSO _ 96 316 248 ioa 66 £100 33 31 28 - 61 bSO - 9B - 296 - 77 ,198 Second- Runoff in Month foot-days Mailman Minimus Heaa aore-.feet October 899 32 21 27,7 1,700 Noveaber...... 1,041 53 27 34T.7 B.060 December...... 1,387 133 SO 44.3 . 2,710 Calendar year 1942 ...... 35,987 428 14 98.6 71,400 January. ..,.'...... 1,170 174 20 37.7 2,320 Ffefbrstftry * 1,841 888 SO 85.8 8,660 Itarch. 1,989 09 41 64.3 8,980 April.... >...... 6,179 488 111 878 16,210 May...... 6,268 844 196 367 16,400 June ...... , ...... 6,929 398 M 801 11,960 July...... '...... 3,345 108 SS 75.6 4,660 4,787 807 W 16S 8,460 September...... 1,370 186 86 82.5 3,110 Water year 1948-43 ...... 30,3SS 488 SO 108 78,120 * Winter discharge nwmrurBBwnt made > Hat Creek near Hat Creek, Calif. Location.- Water-stage recorder, lat. 40°41', long. 121°25', in SEi sec. 28, T. 33 N., R. 5 E., 1 mile northeast of Old Station post office and 8 miles southeast of Hat Creek post office. Altitude of gage, about 4,300 feet, revised, (from topographic map). Drainage area.- 155 square miles. Records available.- April 1928 to September 1943. July 1926 to April 1928 at site half a mile iipstream. * Average discharge.- 16 years (1926-29, 1930-43), 115 second-feet. Extremes.- Mixlmum discharge during year, 332 second-feet June 1 (gage height, F.23 feet); minimum, 126 second-feet Jan. 18, 19. 1926-43: raxlmum discharge, 2,500 second-feet Dec. 11, 1937 (gage height^, 7.75 feet, in well, affected by draw-down), by slope-area method: minimum, 67 seccnd-feet Sept. 7, 1934. Remarks.- Records excellent. Small diversions above station for Irrigation. Rating table, rater-year 1948-43 (gage height, In feet, and discharge, In second-feet) 8.4 184 8.7 190 3.0 8.5 144 8.8 216 3.1 8.6 166 2.9 242 3.2 Discharge, In second-feet, water year October 1942 to September 1943 Day Oct. Ncv. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 128 130 148 146 140 138 155 200 313 171 157 148 Z 128 130 148 142 142 138 155 808 265 168 1S7 140 3 128 136 144 188 142 138 157 211 242 168 157 136 4 128 134 140 144 142 140 159 219 224 168 157 136 5 128 138 136 140 148 144 168 211 216 166 157 136 6 128 132 138 138 142 146 166 881 806 166 157 136 7 128 134 138 140 148 144 168 213 208 164 157 140 8 128 134 138 138 140 1S5 173 £06 211 15S 155 144 128 134 138 138 134 168 166 206 215 157 148 146 128 134 138 136 134 166 168 808 211 168 144 148 11 130 134 138 136 138 168 157 206 808 171 144 148 12 132 132 136 132 138 1S7 157 200 886 166 144 148 13 132 138 136 134 138 157 166 198 808 168 144 151 14 130 13S 136 136 140 159 180 195 195 166 144 151 15 130 144 136 136 140 153 190 195 195 166 148 151 16 130 136 ' 138 134 148 153 195 193 195 166 148 151 17 130 136 138 130 148 153 1S3 190 195 166 148 151 18 130 148 138 186 140 151 1S3 193 198 166 , 148 151 19 130 138 138 126 140 151 195 v 800 195 168 146 148 20 128 134 138 130 140 148 195 1»8 188 162 we 146 21 128 . 136 140 188 140 151 213 808 183 15S 148 144 22 128 136 148 166 140 148 884 811 180 1S1 151 148 23 128 138 144 14S 148 146 £24 234 173 148 151 140 24 iaa 140 15S 146 MS 146 884 242 173 146 1P1 140 25 130 140 146 149 Se 144 211 .850 180 146 151 140 26 130 140 138 148 1*0 162 200 247 178 146 151 140 27 130 148 155 146 240 168 195 247 173 144 1*8 140 28 130 144 168 144 138 162 203 242 171 144 146 140 29 130 142 153 142 _ 168 193 886 171 146 1*4 140 30 130 144 151 140 _ 182 190 886 171 151 144 148 130 - 148 138 - 155 - 258 - 157 144 Second- Runoff in Month foot-days Maximum Minimum Mean acre-feet 7«p TOO 2.38 TAG 1 >trj December...... 4,412 168 136 148 8,750 Calendar year 1942 ...... 55,536 260 122 152 110,800 7 Oft i*tn 1 ftJ May...... AttRQSt 9,150 September ...... 4,310 -151 136 144 8,650 Water year 1942-43 ...... 57,662 313 186 156 114,400 Pacific war time. To convert war time tc standard tine, subtract 1 hoar. 286 PIT RIVER BASIN McCloud River near UpCloud, Calif. Location.- Water-stage recorder, lat. 41°11', long. 122°04', In Iffii sec. 34, T. 39 N., R. 2 W., half a mile downstream from Angel Creek and 8 miles southeast of McCloud. Altitude of gage, about 2,750 feet (from topographic map). Drainage area.- 388 square miles. Records available.- April 1931 to September 1943. Average discharge.- 12 years, 840 second-feet. Extremes.- Maximum discharge during year, 1,960 second-feet Mar. 29 (gag-e height, 2.86 reetj; minimum, 821 second-feet Sept. 27-30 (gage height, 1.36 feet). 1931-43: Maximum discharge, 8,820 second-feet Feb. 28, 1940 (gage height, 8.9 feet), ftgom rating curve extended above 2,400 second-feet on basis of velocity-area and AVI studies; minimum, 524 second-feet Nov. 23, 24, 1932. Remarks.- Records excellent. Two small diversions above station for Irrigation. Rating tables, water year 1948-43 (gage height. In feet, and discharge, In second-feet) (Unstable stage-discharge relation Jan. 11-18) Oct. 1 to Jan. 10 Jan. 19 to Sept. 30 1.4 860 1.3 785 2.0 1,250 1.5 945 1.5 905 2.4 1,560 1.6 1,010 1.7 1,040 2.6 1,730 Discharge, In seooad-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 958 932 971 997 916 957 1,400 1,340 1,240 924 681 851 2 958 938 971 1,000 912 957 1,370 1,280 1,190 931 875 851 3 958 932 964 978 906 967 1,380 1,260 1,120 931 875 851 4 958 932 952 964 905 964 1,390 1,260 1,080 924 875 845 5 958 938 946 958 905 970 1,580 1,240 1,060 924 875 839 6 958 932 945 945 899 998 1,610 1,220 1,040 924 869 839 7 952 932 938 938 957 1,110 . 1,490 1,200 1,030 924 869 839 8 962 932 938 938 964 1,330 1,480 1,170 1,080- 918 669 839 9 952 926 938 952 938 1,360 1,410 1,170 1,010 918 869 833 10 958 926 932 932 918 1,310 1,360 1,170 1,000 918 669 833 11 958 926 S3B 926 912 1,860 1,310, 1,140 1,000 912 668 887 12 952 926 932 920 90S 1,830 1,300 1,180 69B 60S 666 687 13 945 932 932 914 899 1.230 1,310 1,180 691 906 666 8B7 14 945 956 932 908 899 1,480, 1,340 1,100 664, 605 666 887 15 945 964 932 901 905 1,350 1,360 1,100 977 006 869 887 16 945 945 932 895 905 1,260 1,410 1,090 970 90S 863 827 17 945 . 956 932 688 912 1,220 1,390 1,080 970 90S 863 827 18 945 964 932 882 924 1,170 1,360 1,060 964 896 663 887 19 945 952 926 681 904 1,130 1,380 1,070 95* 899 863 633 20 945 945 926 881 931 1,100 1,360 1,070 950 899 ' 887 833 21 938 938 926 905 944 1,090 1,350 1,070 957 899 857 833 22 938 938 926 991 1,020 1,070 1,330 1,080 957 893 857 633 23 938 938 938 996 1,060 1,080 1,370 1,080 950 893 857 833 24 936 945 964 991 1,030 1,080 1,360 1,090 , 944 803 657 833 25 ' 938 945 978 984 984 1,090 1,340 1,090 938 887 651 887 26 938 945 958 970 970 ,1,310 1,310 1,060 938 867 661 887 87 938 956 964 957 964 1,570 1,880 1,070 931 887 661 681 28 938 964 964 957 957 1,580 1,350' 1,060 S31 687 691 8S1 29 938 97S 964 957 - 1,670 McCloud River at Balrd, Calif. Location.- W&ter-stage recorder, lat. 40°47', long. 122°18', In SEi sec. 22, T. 34 N., R. 4 W., It miles upstream from mouth. Altitude of gage, 700 feet (from topographic map). Drainage area.- 668 square miles. Recordsavailable.- December 1930 to Nov. 5, 1943 (discontinued because of submergence by Shasta Reservoir). December 1910 to December 1930 at site 1 mile upstream. Average discharge.- 32 years (1911-43), 1,767 second-feet. Extremes.- Maximum- discharge during period October 1942 to November 1943, 8,820 second- feet Jan. 22 (gage height, 9.48 feet); minimum, 1,050 second-feet Oct. 13-16, 1943. 1910-43: Maximum discharge, 50,000 second-feet Feb. 28, 1940 (gage height, 29.2 feet), from rating curve extended above 26,000 second-feet on basis of logarithmic plotting; minimum, 650 second-feet for several days In 1931. Remarks.- Records excellent except those for periods of no gage-height record, which are good. No large diversions. Discharge, In second-feet, 1942-43 1942-43 Day Oct. Nor. Dec. Jan. Feb. Mar. Apr. May June July Auf. Sept. 1 1,240 1,220 1,480 2,830 3,430 2,230 3,060 2,660 2,220 1,330 1,130 1,110 2 1,230 1,220 1,520 3,050 2,940 2,170 2,SSO 2,520 2,050 1,330 1,190 1,110 3 1,230 1,300 1,480 2,610 2,620 2,130 2,790 2,430 1,870 1,320 1,110 1,110 4 1,230 1,300 1,430 2,260 2,490 2,110 2,740 2,380 1,770 1,320 1,110 1,100 5 1,230 1,250 1,380 2,070 2,400 2,100 2,790 2,300 1,700 1,310 1,170 1,100 6 1,230 1,250 1,460 1,910 2,330 2,160 2,710 2,220 1,650 1,310 1,170 1,100 7 1,230 1,250 1,500 1,810 2,630 2,830 2,910 2,170 1,620 1,300 1,170 1,100 8 1,230 1,250 1,840 1,720 3,270 4,210 3,040 2,100 1,580 1,300 1,1*50 1,100 9 1,220 1,250 1,820 1,680 2,880 4,240 2,990 2,050 1,560 1,290 1,1 "50 1,100 10 1,260 1,250 1,670 1,630 2,580 3,790 2,780 2,010 1,560 1,290 1,1*0 1,100 11 1,310 1,250 1,570 1,600 2,380 3,450 2,650 1,970 1,570 1,280 1,1^0 1,090 12 1,240 1,250 1,510 1,550 2,250 3,180 2,560 1,940 1,620 1,280 1,140 1,090 13 1,240 1,250 1,480 1,530 2,180 3,080 2,520 1,910 1,590 1,270 1,1*0 1,090 14 1,240 1,400 1,450 1.510 2,170 3,970 2,520 1,S80 1,570 1,270 1,1+0 1,090 15 1,240 2,000 1,430 1,500 2,210 3,7SO 2,520 1,850 1,530 1,260 1,1+0 1,090 16 1,230 1,500 1,420 1.500 2,250 3,320 2,530 1,820 1,500 1,260 1,1*0 1,080 17 1,220 1,800 1,410 1,470 2,290 3,040 2,480 1,790 1,480 1,250 1,1'P l.OSO 18 1,220 2,500 1,380 1,430 2,370 2,800 2,420 1,770 1,470 1,250 1,130 1,090 19 1,220 2,000 1.360 1,420 , 2,370 2,620 2,410 1,740 1,450 1,240 1,150 1,080 20 1,220 1,500 1,350 1,580 2,360 2,430 2,370 1,720 1,440 1,240 1,J*0 1,080 21 1,220 1,400 1,330 5.020 2,370 2,380 2,330 1,710 1,470 1,230 1,130 1,080 22 1,220 1,300 1,380 7,570 2,810 2,310 2,290 1,700 1,490 1,230 1,1*0 1,070 23 1,220 1,330 1,600 6,830 3,210 2,250 2,330 1,690 1,450 1,280 1,390 1,070 24 >,220 1,370 2,670 4,520 2,960 2,190 2,370 1,690 1,420 1,280 1,180 1,070 26 1,220 1,370 3,560 3,670 2,700 2,170 2,290 1,680 1,410 1,810 1,3<>0 1,070 26 1,220 1,370 2,410 3,780 2,520 2,680 2,250 1,670 1,390 1,210 1,100 1,070 27 1,220 1,610 2,210 3,890 2,410 3,100 2,250 1,650 1,380 1,200 1,120 1,070 28 1,220 1,570 2,430 3,710 2,310 3,020 2,700 1,630 1,370 1,200 1,110 1,070 29 1,220 1,530 2,410 4,680 _ 3,370 2,960 1,610 1,360 1,200 1,110 1.07O 30 1,220 1,530 2,260 5,370 _ 3,840 2,760 1,620 1,350 1»190 1,310 1,070 31 1,220 - 2,480 4,200 - 3,340 - 1.870 1,190 1,110 - Peak discharge.- Jan. 22 (10 p.m.)'8,320 see.-ft.; Jan. 29 (11 p.m.) 5,830 sec.-ft. note.- Ho gaga-height record Oct. 24 to NOT. 25, July 3 to Aug. 8; discharge computed on basis of records for nearby streams and recorded range In stage fop July 3 to Aug. 8. 1943 Day Oct. Nov. Day Oct. NOT. Day Oct. HOT. 1 1,060 1,060 11 1,060 _ 21 1,140 _ 2 1,060 1,060 12 1,060 _ 22 1,080 _ 3 1,060 1,060 13 1,050 _ 23 1,080 _ 4 1,060 1,060 14 1,050 _ 24 1,090 « 5 1,060 1,060 15 1,050 _ 25 1,080 . 6 1,060 . 16 1,050 . 26 1,070 w 7 1,070 _ 17 1,060 . 87 1,110 - 8 1,070 _ 18 1,060 w 28 1,090 « 9 1,060 - 19 1,060 . 29 1,070 - 10 1,060 . 20 1,110 . 30 1,070 » 31 1,060 - Monthly discharge, In second-feet, 1942-43 Seoond- Runoff in Month fcot-days MaxiauB Minima Mean acre-feet October 1942 ...... 38,130 1,310 1,280 1,830 76,630 43,370 8,500 1,220 1,446 86,020 Deceaber...... 54,670 3,860 1,330 1,764 108,400 Calendar year 1948 ...... 882,800 17,000 1,880 8,417 1> 750, 000 69,930 7,570 1,420 2.901 178,400 February . 71,890 3,430 2,170 2,668 148,600 March...... 90,340 4,240 2,100 2,914 179,800 78,200 3,060 2,260 2,607 166,100 May...... 69, 770 2,680 1,610 1,926 118,600 46,890 2,820 1,360 1*663 93,000 36,000 1,330 1,190 Iy258 77,360 August 36,370 1,190 1,110 1,141 70,160 September...... 38,600 1,110 l k 07X> 1,087 64,660 inter year 1848-43 ...... ,...... 680,160 7,670 1,070 1,663 1,349,000 October 1943 ...... 1,140 1,060 1*070 66,790 NovMbor 1 -5. . . 8,300 1,060 1,060 1,060 10,510 Tl»e baa la t Paelf le war tl*e. To convert war tine to standard time, subtract 1 hour. 288 CLEAR CREEC BASIH Clear Creek near Igo, Calif. Location.- Water-stage recorder, lat. 40°31', long. iS2°Zl', In NEiNEi sec. 27 T. 31 N,, RT6H., at highway bridge on Redding-Igo road, 1.0 mile northeast of Igo, 8 miles southwest of Redding, and 9 miles upstream from mouth. Altitude of gage, about 700 feet (from topographic map). Drainage area.- 231 square miles. Records available.- October 1940 to September 1943. Extremes.- Maximum discharge during year. 3,600 second-feet Jan. 29 (gfge height, 6.65 feet); minimum, 18 second-feet Sept. 22-26. 1940-43: Maximum discharge, 19,200 second-feet Jfer. 1, 1941 (gare height, 12.2 feet), from rating curve extended above 12,000 second-feet on basis of velocity-area studies; minimum, that of Sept. 22-26, 1943. Maximum stage .known, about 13 feet In February 1940, from Information by local residents. Remarks.- Records excellent. Snail diversions above station. (Rating table, water year 1942-43 (gage height. In feet, and discharge, In second-feet) (Shifting-control method used Jan. 22-29) 2.2 19 2.8 105 4.2 780 2.3 26 2.9 128 4.6 1,060 2.4 39 3.0 164 S.O 1,400 2.5 51 3.2 220 5.5 1,930 2.6 66 3.5 355 5.8 2,300 2.7 84 3.8 520 Discharge, in second-feet, valor year October 1942 to September 1943 Day Oct. Nor. Deo. Jan. Feb. Mar. Apr. May Jane Jily Ang. Sept. 1 39 51 133 490 948 520 375 360 £98 68 28 S3 2 58 51 136 568 801 490 360 320 172 66 30 88 3 38 58 123 472 690 466 350 296 146 66 30 88 4 37 57 112 380 664 460 335 278 136 64 30 21 5 37 54 105 315 632 454 484 860 133 68 31 21 6 36 ,56 116 269 593 4S4 438 244 123 56 32 20 7 37 >>6 121 832 731 580 410 228 114 56 30 19 8 37 57 121 209 787 822 400 213 107 64 89 19 9 37 62 178 195 710 871 370 209 105 61 89 SO 10 41 57 163 181 619 828 350 198 105 49 88 81 11 56 64 146 175 550 787 335 191 123 49 87 81 12 49 52 136 163 502 717 313 188 126 46 2B 81 13 49 54 133 154 484 684 300 181 . 116 45 26 81 14 49 70 126 149 496 704 091 178 112 45 25 81 15 50 160 121 149 526 626 278 175 103 45 24 81 16 51 166 119 151 544 568 274 175 94 45 84 81 17 51 269 116 149 556 538 seo 169 88 44 24 81 18 52 848 118 138 580 502 252 160 84 43 84 81 19 49 151 105 136 562 460 848 151 82 41 24, SI 20 47 110 105 195 544 432 244 149 88 39 84 80 19' 21 44 92 101 2,330 544 410 274 141 107 3B 34 22 44 64 133 8,210 752 400 840 136 114 38 24 18 23 44 90 342 2,240 962 378 832 iss 99 39 86 18 24 43 107 645 1,360 850 SCO 224 188> 94 38 27 18 25 45 107 664 1,130 745 , 5SO SOS 183 98 37 «7 18 26 47 101 444 1,090 vn 405 215 181 86 35 86 18 27 49 eeo 466 1,010 612 396 866 116 88 34 25 81 28 52 2EO 638 934 666 STB \496 114 77 32 84 .88 29 52 IBS 332 2,090 454 494 11S 73 31 83 84 30 51 149 444 1,780 , 438 390 121 71 31 83 83 31 51 - 444 1,20O - 400 seo - 89 83 - Second- Runoff in Month foot-days Maxima Minimal Mean acre-feet October...... 1,402 56 36 45.2 8,780 November...... ' 3,266 269 SI 106 6/480 Deoenber...... 7,400 684 101 £39 14,680 Calendar year 1942 ...... 195,671 9,010 36 536 388,100 January...... 22,244 2,330 AO Cottonwood Creek near Cottonwooci, Calif. Location.- Water-stage recorder, lat. 40°24', long. 122°13', in NEi sec. 7, T. 29 N., R73W., 2 miles east of Cottonwood and 2 miles upstream from mouth. Altitude of gage, about 370 feet (from river-profile map). Drainage area.- 945 square miles. Records available.-. October 1940 to September 1943. Extremes.- Maximum discharge during year, 38,500 second-feet Jan. 21 (gage height, 13.42 feet}, from rating curve sxtended above 30,000 second-feet; minimum, 47 secoiri-feet Sept. 3, 4. 1940-43: Maximum discharge, 52,300 second-feet Mar. 1, 1941 (gage height, 15.4 feet), from rating curve extended above 30,000 second-feet: minimum, that of Sept. 3, 4, 1943. ' Remarks.- Records good. Small diversions above station. Discharge, In second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 67 94 288 1,060 2,190 1,060 896 665 356 114 58 54 2 64 89 264 1,180 1,880 986 S65 596 336 108 E5 52 3 60 96 283 ' 983 1,670 942 821 548 294 102 S3 49 4 60 106 250 840 1,680 953 780 518 270 102 52 50 5 58 109 232 748 1,740 931 1,060 488 259 98 E6 53 6 56 104 ess 65S 1,590 997 1,070 472 254 93 S Second- Runoff in Month foot-days Maximum Minimum Mean acre-feet 2 Y88 1 ^Q i nto o November...... f...... December...... 23,980 3.S60 19S 774 47,560 Calendar year 1942 ...... 366,041 20,800 51 1,003 726,000 January...... February March...... 80 290 4(65 May 11 2n V 194 I CQfl (September...... 1,634 60 49 54.5 3,240 Water1 year 1942-43 ...... 261,505 22,100 49 716 818,700 TlJ86 baaim Pacific war time. To convert war time to standard tin*, subtract 1 hour. 290 BATTLE CREEK BASIN Battle Creek near Cottonwood, Calif. Location.- Water-stage recorder, lat. 40°24', long. "I 22°08 I , in NWi ser. 6, T. 29 N. f R. 2 W., 3 miles upstream from mouth and 9 miles east of Cottonwood. Altitude of gage, about 420 feet (from topographic map). Drainage area.- 362 square miles. Records available.- October 1940 to September 1943. Extremes.- raxlmum discharge during year, 9,090 second-feet Jan. 21 (grge height, 9.7 feet); minimum, 199 second-feet (regulated) Oct. 22. 1940-43: mximum discharge, 12,800 second-feet Feb. 6, 1942 (gafe height, 11.85 feet), from rating curve extended above 10,000 second-feet: minimum, 130 second-feet (regulated) Sept. 16, 1941. mximum stage known, 15.8 feet, from floodmarks, Dec. 11, 1937 (discharge, 35,000 second-feet, by slope-area method). Remarks.- Records gooa except those for Oct. 1 to Dec. 22 and Jan. 21 to Mar. 9, which are fair. Flow regulated by four small power plants and several small reservoirs above station. Diversions above station of about 10 second-feet for irrigation. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0285 303 366 625 382 766 962 1,060 1,120 444 298 254 ?, 0290 303 473 709 805 734 917 1,000 966 444 296 254 5 0235 344 444 529 740 716 890 959 761 439 287 254 4 0291 347 393 516 903 722 904 959 698 439 283 257 5 C288 322 370 488 840 847 1,060 917 676 439 287 257 6 C285 315 383 466 722 1,240 1,000 904 645 434 287 257 7 C292 315 3S6 417 1,490 1,190 938 871 610 413 287 254 ft 0297 '322 360 455 1,380 1,930 1,150 833 590 405 287 257 9 C282 ' 328 370 437 924 5,310 1,020 809 580 388 263 264 10 C276 325 363 434 798 4,390 952 803 575 371 279 257 11 e3ie :S2 357 430 746 2,250 897 785 570 375 276 254 12 C325 .15 350 424 692 1,590 678 761 610 371 272 254 1-3 c325 .'22 347 410 686 1,340 878 743 595 359 272 254 14 312 331 347 420 674 2,020 910 720 565 359 266 254 15 303 383 347 417 664 1..400 945 703 535 359 279 254 16 303 386 341 417 656 1,200 966 686 525 354 287 254 17 294 496 341 407 642 1,140 952 660 520 364 283 254 Ifi 294 552 341 390 662 1,060 938 640 52S 346 283 S54 19 294 455 338 393 636 987 959 660 520 346 876 T 254 20 297 379 338 1,310 636 924 917 640 , 511 546 279 257 ?1 294 366 347 5,320 647 904 1,070 646 502 363 283 254 ?? 288 354 614 3,200 1,510 904 i;o4o 648 511 334 283 246 ?3 294 347 1,870 5,050 1,430 658 931 686 488 334 283 257 P4 294 363 1,260 1,680 1,580 633 904 686 466 sea 287 250 25 294 373 1,130 1,720 1,100 815 904 686 470 314 287 257 W> 294 366 625 1,690 938 9S8 845 698 457 314 287 £64 srr 297 444 625 ,440 917 1,020 910 686 439 310 272 264 ?fi 303 430 957 ,040 812 9S8 2,680 670 426 514 272 261 ?.9 300 400 750 ,400 1,130 1,640 645 434 306 272 264 .TO 309 427 625 ,760 _ 1,150 1,140 640 439 295 26S 264 31 306 - 630 ,060 - 966 - 773 - sea 264 - Second- Runoff in Month fcct-days Maximum Minismn Mean acre-feat 887 Si ,390 December ...... 16,808 1,870 338 542 33,340 Calendar year 1942 ...... 235,346 7,140 276 645 466,800 36, 454 5,320 390 1,144 70,320 £6,044 1,520 636 894 49,670 March...... 42, 818 . 5,510 716 1,362 83, 730 April ...... 30,887 2,560 845 1,030 61,260 May...... /... 23,563 1,060 640 760 46,740 17,529 1,120 426 678 34,370 11,289 444 295 364 22,390 8,709 296 S64 88* 17,270 Septsaber...... j ...... 7,688 864 246 see 15,250 ' Water year 1848-43 ...... SZ&, 888 8,320 246 S65 474,500 Peak discharge.- Jan. 21 (2 p.m.) 9.090 sec. -ft.: Jan. 22 (11:30 c.m.) 8.160 sec. -ft.: Bar. 0 e Backwater from fish rack on control. Hcte.- Shifting-control method used Oct. 14 to Dec. 22. Time baals: Pacific war tints. To convert war tiro to standard time, subtract 1 hour. ANTELOPE CREEK BASIN 291 Antelope Creek near Red Bluff, Calif. Location.- Water-stage recorder, lat. 40°12', long. 122°07', in SEi sec. 7, T. 27 N., R. 2 W., 6 miles upstream from mouth and 6 miles east of Red Bluff. Altitude of gage, about 340 feet (from topographic map). Drainage area.- 124 square miles. Records available.- October 1940 to September 1943. Extremes.- Maximum discharge during year, 5,250 second-feet Jan. 21 (gage height, 9.5 feet); minimum, 38 second-feet (regulated) Oct. 1, Sept. 30. 1940-43: Maximum discharge, 10,400 second-feet Feb. 6, 1942 (gage height, 13.9 feet); minimum, 14 second-feet (regulated) Oct. 1, 1940. Flood of December 1937 reached a stage of about 22 feet, from floodnarks. Remarks.- Records good. Snail diversion above station for Red Bluff water supply during October to June of each year. Discharge, in seoond-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Har. Apr. Hay June July Aug. Sept. 1 48 48 49 89 384 220 292 392 201 65 "4948 44 Z 4S 48 62 131 289 19S 270 336 165 65 45 3 47 54 61 96 234 179 261 299 130 64 49 45 4 47 52 54 SI 240 179 258 276 119 63 48 45, 5 47 50 51 74 234 286 350 252 123 60 48 44 6 47 49 56 69 195 839 336 234 121 , 59 47 44 7 47 49 66 66 394 596 312 218 109 56 46 44 fi 47 51 57 65 461 832 406 198 102 57 46 44 9 47 53 55 62 312 1,420 367 184 96 56 46 46 10 47 50 55 1 60 249 1,900 326 179 93 56 47 45 n 61 48 52 58 215 1,010 2S9 170 91 56 46 45 12 56 48 53 57 190 700 267 162 93 54 46 45 13 50 48 52 56 174 560 261 153 94 54 46 44 14 49 52 52 55 162 668 261 151 93 54 45 44 15 49 59 51 55 153 560 264 145 85 54 45 44 16 48 61 50 55 - 145 457 276 140 80 54 45 44 17 47 130 50 54 136 417 270 134 77 54 46 44 IS 47 89 49 52 136 370 252 130 76 54 46 44 IS 47 70 48 51 132 312 246 125 76 54 46 44 20 47 55 51 273 128 270 234 123 75 53 46 44 21 47 49 52 2,480 128 246 276 119 75 54 46 44 22 47 48 76 1,410 297 243 296 117 76 34 46 44 83 47 47 549 2,770 518 218 258 13,7 72 53 46 43 24 47 47 565 747 518 204 246 115 72 51 47 43 25 47 47 546 664 450 195 232 113 75 51 47 44 26 48 47 206 869 329 218 209 111 72 50 46 44 27 48 52 144 1,200 299 261 220 106 70 50 46 45 2R 48 52 192 533 249 240 1,100 104 66 50 45 46 29 48 51 163 846 .. 336 696 98 66 48 45 45 30 48 51 116 994 _ 392 472 94 65 48 45 44 31 48 94 576 - 326 - 111 " 48 45 Seccnd- Runoff in Month f cot-days Maximum Minimum Mean acre-feet 48.2 130 47 55.2 3,280 December...... 3,776 565 48 122 7,490 Calendar year 1942 ...... t ...... 74,311 5,190 47 204 ilr, 400 5l' 14,648 2,770 473 29JJ50 7,351 518 128 263 14,580 March...... 14,852 1,900 179 476 29,460 9,803 1,100 209 327 19,440 May...... 5,206 392 94 168 10,330 2,808 201 65 93.6 5,570 1,701 65 48 54.9 3,370 1,435 49 45 46.3 2,850 September...... 1,330 46 43 44.3 2.64O Water year 1942-43 ...... 66,060 2,770 43 181 131,000 Peak discharge.- Jan. 21 tl2!30 p.m.) 5,250 sec.-ft.; Jan. 22 (10:30 p.m.) 4,810 sec.-ft.; Jan. 23 (W3Q a.m,) 4.64O sec.-ft. Tiae fraala; Pacific war time. To convert war time to standard time, subtract 1 houl>. 292 MILL CREEK BASIN Mill Creek near Los Molinos, Calif. Location.- Water-stage recorder, lat. 40°03'20", long. 122°01'15", In N$ sec. 6, T. 25 N., R. 1 W., 5 miles upstream from mouth and 5 miles northeast of Los Holinos. Altitude of gage, about 420 feet (from topographic map). Drainage area.- 134 square miles. Records available.- October 1928 to September 1943. September 1909 to September 1913 ( fragmentary), at site 0.3 mile downstream. Average discharge.- 15 years (1928-43), 282 second-feet. Extremes.- Maximum discharge during year, 6,970 second-feet Mar. 8 (gage height, 9.87 feet); minimum, 116 second-feet Oct. 4-10. 1928-43: Maximum discharge, 23,000 second-feet Dec. 11, 1937 (gage height, 23.4 feet, from floodmarks), from rating curve extended above 3,900 second-feet on basis of slope-area studies; minimum, 49 second-feet Dec. 13, 1932. Remarks.- Records excellent April to September, good October to March. No large diversions above station. Rating tables, water year 1948-43 (gage height, In feet, and discharge. In second-feet) Oct. 1 to Jan. 21 Jan. 22 to Sept. 30 1.6 116 4.0 ' 1,030 1.6 106 2.5 415 6.0 2,300 l.S 168 -8.0 1,560 1.6 128 3.0 610 7.0 3,310 S.O 228 6.0 2,300 1.8 1S2 4.0 1,060 7.4 3,770 2.5 392 7.0 3,310 2.0 244 5.0 1,600 3.0 680 Discharge, in second- feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. liar. Apr. May June Jnly Aug. Sept. 1 121 119 1S9 334 510 398 522 634 1,040 270 154 124 2 119 119 311 351 426 376 502 602 712 270 154 124 3 119 152 257 289 373 362 502 578 514 270 151 124 4 116 139 204 266 380 366 506 598 443 270 151 121 5 116 129 180 244 373 747 722 550 450 263 149 121 6 116 124 189 225 338 1,320 634 554 415 263 149 1S1 7 116 121 192 213 541 928 594 534 401 257 146 12L 8 116 132 171 204 574 2,490 771 490 401 264 146 181 9 116 139 171 19S 440 2,640 626 474 396 247 144 124 10 116 126 168 189 384 2,310 546 490 39S 244 141 1S1 11 147 121 163 183 348 1,320 498 478 394 244 141 1S1 12 137 121 160 177 326 948 498 446 412 241 138 181 13 126 121 156 171 310 786 586 429- 384 228 138 121 14 126 129 160 171 307 934 694 416 348 2SS 1S6 jsi 15 132 216 155 171 310 758 630 401 348 828 136 181 16 126 171 156 171 314 614 664 876 34S 215 136 181- 17 124 264 152 166 317 574 630 366 366 209 183 18 121 308 152 166 384 614 694 373 578 SO* 183 U9 19 121 ess 150 155 314 468 670 307 362 206 138 119 20 121 171 152 2.60 324 418 S4« 387 -.884 197 183 119 21 119 152 152 3,170 348 398 638 408 320 200 133 119 22 119 147 163 2,230 614 396 668 426 300 191 133 117 23 119 150 666 3,770 800 37S 598 610 ESS 10S 133 117 £4 121 174 881 1,160 941 . 362 586 518 876 179 133 117 25 121 189 752 1,070 6,74 369 564 622 28.3 174 131 119 B6 121 160 355 1,040 530 482 494 530 270 171 131 119 27 121 231 318 1,360 478 610 514 518 263 166 128 119 28 121 231 660 670 426 638 1,660 606 270 166 126 119 29 121 198 489 990 762 924 468 276 168 186 119 30 121 213 378 1,170 708 704 443 273 160 126 119 31 119 368 690 562 634 167 186, SeoonoV Runoff in Month f6ot-days Maxiaun .» *». HMD. aore-fset Ooto ber 3,775 147 116 188 7,490 Horn 4,985 119 Deoa ber...... 8,671 881. 150 S80 wlaoo Ca lendar year 1942 ' 142,947 5,690 116 892 888,600 Jannary * 81,606 3,770 166 «97 42,860 12,346 941 . 307 441 24,490 Marc b...... 1. .... 24,691. £,640 369 796 48,970 *prl \ 18,886 1,660 494 37,460 May. 15 ,-036 634 36* T* < 80,820 June 11,046 1,044} 1 263 - 83,100 July 6,707 870 11*7 * 816 AB&Qat...... 4,298 164 126 138 t'w September...... 3,608 124 117 JSO Water year 1942-43 ...... 136,225 8,770 lie 373 270,200 Peak discharge.- Jen. 21 (12:30 -p.m.) 6.4BO sec. -ft.: Jan. 23 (7t30 a.m.) 5.V2T seo.-ft.; Jan. 27 (3~1.JB,| 8,630 8*8,-ft. j Mar. 8 (2 p.a.) 6,970 s«c.-ft.j Ifcr. 10 (6 a.m.). 3,930 »ee.-ft.} Apr. 88 (4 *.*»} 2,660 aeo.-ft. JT Pacific par tlaw. To convert war ttm« to standard tins, subtract 1 bmir. THOIft.8 CREEK BASIN 293 Thomas Creek at Paskenta, Calif. Location.- Vfater-stage recorder, Lat. 39°52 ( , long. 122°33', In NWi eec. 4, T. 23 N., R. 6 W., half a mile upstream from Paskenta and 4l miles downstream from Mill Creek. Drainage area.- 188 square miles. Records available.- October 1920 to September 1943 at various sites close to Pa^kenta (prior to January 1921, gage heights only). Average discharge.- 22 years (1921-43), 257 second-feet. Extremes.- TlaXiinum discharge during year, 18,600 second-fe%t"jan. 21 (gage height, 10.92 feet) from rating curve extended above 7,000 second-feet by logarithmic plotting; minimum, 1.2 second-feet Sept. 23, 24. 1921-43: Maximum discharge, that of Jan. 21, 1943; no flow at times during 1921, 1922, 1924, 1926, 1929-34, 1939. Remarks.- Records good except those for period of no gage-height record, which are fair. No diversion above station. Rating tables, water year 1942-43 (gage height, in feet, and discharge, In second-feet) Oct. 1 to Jan. 21 Jan. 21 to Sept. 30 2.8 3.5 94 5.5 1,700 2.S 3.5 106 5.5 1,840 2.9 3.7 148 6.0 2,500 2.9 3.6 138 6.0 E,670 3.0 3.9 222 6.6 3,700 3.0 15 3.8 E1S 6.8 4,240 3.1 26 4.1 316 7.2 5,120 3.1 26 4.0 318 3.2 37 4.3 440 7.9 7..120 3.2 40 4.2 440 3.3 52 4.6 685 9.0 10,900 3.3 56 4.5 660 5.0 1,090 3.4 5.0 1,180 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 6 9.5 194 694 556 370 421 364 200 S3 5,5 3.3 2 5 9.5 401 622 516 370 395 318 150 32 6.5 2.3 3 5 10 852 485 470 376 382 3O2 120 30 4.7 2.1 4 4.8 11 179 394 524 382 376 287 112 29 4.7 2.1 5 4.8 13 140 333 630 427 470 271 119 27 5.5 2.1 4.*8 6 12 131 290 572 463 427 271 103 25 S.5 1.9 7 4.8 12 117 839 660 588 395 252 92 24 5.5 1.9 8 4.8 12 102 214 646 1,080 408 245 84 24 5.5 2.1 9 4.8 13 126 190 548 1,200 364 235 81 22 5.5 2.1 10 5.5 19 161 175 478 1,580 335 220 76 19 ,4.7 2.1 11 8 14 142 168 434 1,110 308 210 78 18 4.7 2.1 12 7 13 142 145 440 900 297 200 96 17 4.2 1.9 13 6.5 13 179 j.34 508 790 308 ISO 78 16 4.2 1.7 14 7 13 175 12b 613 734 341 185 71 15 3,8 1.7 15 7 101 162 126 678 621 376 180 63 15 3.4 1.7 16 8 80 158 120 689 532 353 170 58 15 3.4 1.7 17 8.5 436 148 112 689 466 324 160 53 14 3.1 1.7 18 e 613 134 102 672 434 308 150 51 14 3.1 1.7 19 7.5 202 117 99 655 382 302 140 50 13 3.1 1.7 20 7 110 112 159 680 353 276 130 48 13 3.1 1.6 21 7 80 117 10,200 743 330 341 120 50 13 . 3.1 1.4 22 7 69 131 4,920 800 313 292 115 50 13 3.1 1.4 23 7 146 578 2,640 752 297 276 110 46 12 3.1. 1.2 24 7 345 2,100 1,340 646 287 266 110 45 11 3.4 1.2 25 7 239 954 1,050 546 297 247 110 46 10 3.4 1.4 26 7 148 555 890 486 570 223 105 43 9.6 3.4 1.6 27 7 720 1,200 850 427 604 375 105 42 8.5 3.4 1.7 28 7.5 382 2,170 716 395 501 646 105 39 7 3.4 1.7 29 8 £85 1,120 840 - 516 455 100 36 6.5 3.1 1.9 30 8.5 280 650 716 - 465 402 100 34 6 2.8 1.7 31 9.5 850 604 - 421 130 - 6 2.5 - Seoond- ». Runoff in Month foot-days Ma*iB«. Minimum " an acra-feet October ...... 206.3 9.5 4*8 6.6f * 409 Hove her...... 4,412.0 720 9.5 147 8,750 Deceober, ...... 13,881 2,170 102 448 27,530 Calendar vear 194P ...... 133^3 78* 8 4 , 650 4*8 365 264,600 January...... 29,689 10,200 99 958 53,890 Februarv ...... 16,469 800 395 588 32,670 March. ."...... 17,717 1,580 287 572 « 35,140 April...... 10,689 646 £23 356 21,200 1 QA -i i ifon May...... 5,690 364 100 J-Cnc H-giCVv June ...... S fCtiAO"\A 200 34 73.8 4^90 July...... 517. 5 33 6 16.7 1,030 August ...... 133*4 5,5 2 5 3. 96 246 September ...... 53 7 2.3 1.2 1.79 107 Water year 1942-43 ...... 101,661.9 10,200 1.8 279 201A700 Peak discharge.- Dec. 24 (2 a.m.) 3,850 sec.-ft.; Dec. 28 (12:30 a.m.)3,4SO sec.-ft.; Jan- (11 a.m.) 18,600 sec.-ft. Mote.- No gage-height record May 8 to June 3; discharge computed on basla of recorded range in stage and records for Deer Creek near Vlna and Cottonwood Creek near Cottonwoodt Time baalat Pacific war time. To convert war time to standard time, subtract 1 hour. "294 DEER CREEK BASIN Deer Creek near Vlna, Calif. Location.- Water-stage recorder, lat. 40°01', long. 121°56', in MEi se~. 23, T. 25 N., R. i w., 0.8 mile upstream from concrete diversion dam and 9 miles northeast of Vina. Altitude of gage, about 480 feet (from topographic map). Drainage area.- 200 square miles. Records available.- October 1911 to Decenber 1915, Marrh 1920 to December 1937, January 1939 to September 1943. Average discharge.- 24 years (1912-15, 1920-37, 1939-43), 298 secotid-f-"»t. Extremes.- Maximum discharge during year, 6,240 second-feet Jan. 21 (gage height, 8.90 feot); minimum, 112 second-feet Sept. 20-23. 1911-15, 1920-37, 1939-43; Maximum discharge, 23,800 second-feet Dec. 10, 1937. (gage height, 19.2 feet, present datum, from floodmarks), from rating curve extended above 8,000 second-feet; minimum, 43 second-feet Dec. 13, 1932. Reirarks.- Records good. No large diversions above station. Rating table, water year 1942-43 (gage height, In feet, anij discharge, In second-feet) 2.5 114 3.9 606 5.5 1,660 2.7 156 4.2 770 6.0 2,150 3.0 23S 4.5 950 6.5 2,750 3.3 338 4.8 1,140 7.0 3,430 3.6 45B 5.1 1,350 7.6 4,280 Disoharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 122 US 175 353 770 519 742 902 514 186 13S 118 2 120 120 205 342 617 481 720 612 436 186 138 118 3 lie 147 208 288 514 45B 704 748 368 180 138 116 4 lie 149 175 262 495 454 698 704 360 178 133 116 5 118 126 161 241 472 710 914 660 391 175 136 116 6 118 124 166 223 432 1,180 860 617 383 173 136 116 7 118 124 16S 208 544 1,220 812 570 331 170 J.34 116 e 120 130 158 197 590 2,350 1, 020 529 309 168 132 113 9 120 143 163 188 495 2,910 914 495 292 166 132 118 10 120 126 16S 178 454 3,190 830 472 278 166 130 113 11 141 122 163 175 415 2,230 754 449 271 163 130 116 12 136 122 156 168 367 1,660 715 426 282 161 130 116 13 126 122 156 163 366 1,370 704 411 275 161 128 116 14 122 136 161 163 356 1,400 732 399 262 161 128 116 15 128 211 156 163 356 1,200 737 387 247 161 126 116 16 124 191 152 161 356 1,020 748 271 238 16f 126 116 17 120 295 149 152 360 932 720 356 232 15 S 126 116 18 120 441 147 141 368 830 693 342 229 156 126 116 19 120 309 143 141 356 737 671 331 226 , 156 126 114 20 118 200 145 25S 366 666 636 324 220 156 128 114 21 lie 168 143 3,640 399 628 754 313 217 161 128 112 22 118 156 161 2,940 674 601 770 306 220 156 128 112 23 118 154 - 467 4,320 968 554 666 302 Ell 162 128 112 24 US 166 812 1,660 938 529 660 £95 211 149 126 114 25 118 188 7S7 f1 ' 380 812 519 622 262 203 147 126 114 26 118 163 375 " 1,340 683 644 670 286 £08 145 124 114 27 120 S39 331 1,290 622 800 608 sas 200 143 122 114 28 120 J335 ' 693 - 896 S59 726 1, 480 27g 194 J.43 122 116 - SS 120 200 644 1,290 ' _ 908 1,640 263 191 141 120 116 50 120 191 445 1,800 ' 920 9^2 268 188 138 120 114 31 120 - 395 1,930 - 788 342 138 118 ^ Second- Runoff in Month foot-dsys Maximum Minimum Mean acre-feet October...... 3,755 141 118 121 7,450 November ...... 5,315 441 118 177 10,540 December ...... 6,480 812 143 274 16,620 Calendar year 1942 ...... 169,625 7,040 lie 464 336,200 January ...... :. 25,549 4,320 141 824 50,680 February ...... 14,733 96B S5« 526 29,220 Iteroh...... T...... 33,184 3, ISO 454 1,070 65,880 April ...... 23,714 1,480 570 790 47,040 May...... *...... 13,541 902 268 437 26,860 June ...... 8,204 514 168 273 16,270 July...... I...... 4,955 186 136 160 9,630 August ...... 3,983 138 118 189 7,910 September...... 3,464 118 112 ,115 6,870 Water jrear 1942-43 ...... '...... 146,882 4,320 112 40S '895,300 Peak aiBghagfe,,- Jan,. 61 {12 ».> 6,840 »ee.-ft.j Jan. S3 (6 a.m.) 5,360 sec.-ft.} Jan. 26 (10 p.m.! e739Criec.-ft.; Har. 8 (3 p.ft.) ' OSO sec.-ft.,- Mar. 10 (5:30 a-m,} 4.090 sec.-ft. Apr. 28 (6t3O-«.m.) 8,((SO s»e.-ft. Time .tMjUif Pae^flo war time, fo eonveri. war time to standard tlme,~ subtract 1 hour. CHICO CREEK BASIN 295 Chico Creek near chico, Calif. Location.- Water-stage recorder, lat. 39°46', long. 121°46'; in Arroyo Chico Grant, 1 nlle upstream from golf clubhouse in Municipal Park and 6 miles northeast of Chico, Butte County. Altitude of gage, about 400 feet (from topographic map). Drainage area.- 68.3 square miles. Records available.- Ilay 1930 to September 1943. Average discharge.- 13 years, 146 second-feet. Extremes.- Maximum discharge during year, 4,610 second-feet Jan. 21 (gag* height, 11.0 feet); nininum, 15 second-feet (regulated, estimated) July 15. 1930-43: Maximum discharge, 8,260 second-feet Dec. 10, 1037 (gage height, 16.6 feet), from rating curve extended above 5,000 second-feet on basis of rating at cable gage, velocity-area studies, and logarithmic plotting: minimum, 10 second-feet (regu lated) Dec. 11, 1932, Aug. 15, 1939. Remarks.-. Records fair. No large diversions above station. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 29 31 45 100 608 228 184 228 99 40 29 31 2 29 31 47 90 441 207 172 196 84 40 28 30 £ 29 45 51 7B 342 188 162 174 74 40 29 31 4 29 39 47 72 301 184 154 162 39 29 28 ' 5 29 32 45 67 270 194 220 146 *» 70 39 29 27 6 29 31 60 64 236 323 217 134 71 40 31 30 7 29 31 68 60 301 382 196 122 67 39 32 30 8 28 34 58 59 360 816 262 116 59 41 32 31 9, 28 37 55 58 313 1,270 264 110 56 39 33 32 10 29 32 55 56 266 1,220 245 104 55 37 33 32 11 39 31 54 55 232 889 217 101 55 38 31 30 12 36 31 52 54 207 638 194 95 56 36 32 27 13 31 31 50 53 186 498 176 92 56 36 32 26 14 31 36 49 172 547 164 90 ,55 33 32 26 15 31 52 47 50 162 491 154 88 55 32 31 26 16 30 54 45 49 156 411 144 85 52 32 31 26 17 29 164 44 48 150 374 . 134 84 49 3E 31 86 18 28 J.51 43 46 142 330 126 80 50 31 31 25 19 27 97 41 46 134 281 120 77 49 31 32 25 20 27 SB 41 86 128 251 114 76 49 2S 31 25 21 E7 49 43 2,610 130 232 120 73 50 32 32 24 22 27 45 49 1,600 249 220 114 71 50 32 32 24 23 28 43 275 2,980 411 198 106 68 49 SE 32 24 24 28 43 378 1,330 374 180 108 67 49 30 33 24 25 29 44 406 890 360 168 106 66 52 30 32 a24 26 30 43 193 1,040 313 170 101 66 48 26 32 a24 27 31 50 129 966 283 162 114 64 47 26 32 a25 28 31 50 818 S64 251 154 355 63 42 27 32 a28 29 31 49 213 931 194 340 61 41 28 30 a2s 30 31 47 150 1,830 230 268 61 40 28 32 a25 31 31 11B 1,020 205 70 28 32 Second- y^ Runoff in Month ' foot-days Maximum Minimum aore-feet Octo ber...... 921 39 27 29.7 1,830 Nove 1,511 164 31 50.4 3,000 Deoeaiber...... 3,169 406 41 102 6,290 Calendar year 1942 77 , 243 5,220 27 212 153,200 Janu ary 17,104 2,980 46 552 33,930 Febr 7,478 608 128 267 14,830 Marc 11,835 1,270 ' 154 382 23,470 Apri 1...... 5,351 355 101 178 10,610 May. 3,090 228 61 99.7 6,130 June 1,697 99 40 56.6 3,370 July 1,046 41 26 33.7 2,070 Augu 970 33 28 31.3 1,920 Sept ember...... 814 32 24 27.1 1,610 Water year 1942-43 ...... 54,936 2,980 24 151 109,100 Peak discharge.- DBO. 24 (12:30 a.m.) 718 sec. -ft.; Jan. 21 (1 p.m.) 4,610 sec. -ft.; Jan. 23 (6 a.m.) s,8bu sec.- ft.; Jan. 30 (10 a.n. ) 2,180 sec. -ft.; Mar. 9 (4s30 a.m.) 1,460 sea. -ft. a Mo gage-height r. ncord; discharge computed on basis of recorded range In stage and records for nearby streams. Time baa lei paelf Lc war time. To convert war time to standard time, subtract 1 hour. 296 STONY CREEK BASIN Stony Creek near Hamilton City, Calif. Location.- Water-stage recorder, lat. 39°44'40", long. 122°05'50", In SEi sec. 21, T. 22 N., R. 2 W., 4.5 miles west of Hamilton City, 5 miles east of OrlaM, and 8 miles up stream from mouth. Datum of gage Is 188.11 feet above mean sea level,'datum of 1929 (Corps of Engineers, U. S. Army, bench mark). Drainage area.- 761 square miles. Records available.- January 1941 to .September 1943. Extremes.- Ffeucimum discharge dur^.ig year, 22,100 second-feet Jan. 21; maximum gage height, 4.55 feet Jan. 23; r\'j flow Oct. 24, Nov. 2-7. 1941-43: Maximum discharge, 37,500 second-feet Mar. 1, 1941 (ga Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 8 0.5 87 864 2,480 689 571 252 23 0 77 846 1,980 663 564 277 31 0 178 738 1,610 650 564 349 35 ' 0 126 645 1,430 650 601 335 31 0 901 » 418 1,460 689 406 312 25 6 1.9 0 70 307 1,340 702 360 252 26 0 62 255 1,300 729 192 209 25 1.5 .a 65 221 1,360 757 152 156 23 1.9 57 196 1,250 932 138 102 20 ' .1 73 172 1,140 2,650 124 74 a!6 11 1.6 .6 90 154 1,050 2,680 114 51 ais .3 84 144 979 1,980 104 39 alS 11 77 139 948 1,460 a66 31 25 80 148 932 1,040 44 26 19 12 70 160 917 900 38 25 alS > a!5 a9 alO 16 12 12 62 178 886 848 37 31 4.0 15 57 172 827 848 a35 38 alB 52 166 799 837 832 32 alS 19 176 47 160 785 804 830 25 alO 90 47 166 757 771 a28 27 alO 21 .7 57 42 6,180 757 741 a26 24 alO 3B 47 14,100 757 722 a24 .1 24 230 14,800 7S5 694 22 816 24 16 892 6,960 743 665 17 a!4 23 25 .5 23 1,0/40 4,310 715 649 14 alE 23 26 2.6 38 600 3,340 689 625 13 alO al6 36 439 2,580 716 609 26 alO 11 113 310, 1,820 715 886 209 a!2 alO 29 108 946 S.740 - 678 358 a!6 alO 8.7 830 3,950 ,» 585 266 18 aJO ." 774 3,160 - 571 a!6 * Sfccomj- Runoff In Month f pot-days Maximum Ministun Mesa acre-feet j r T -»a e December ...... 8,001 1,040 43 258 15,870 Calendar year 1942 ...... 307,405.0 21,500 0 642 609,800 g 329 2 480 March...... Apr^l...... '...... May"...... g 810 922 September...... 300 . - 10 595 Water year 1942-43 ...... 149,342.7 14,800 o 406 296,200 Peak discharge,- Jan. 81 (S p.m. ) 22.100 sec. -ft. t Ja». 83 <4 a.m. i SO .500 spe.-ft. a Ho -gage-Height record) discharge computed on basis of Intermittent gege-heJ«ht neeord and re sults of discharge measurements. Time Basiyi Pafelfle war tine. To convert war tiae to" standard time, subtract 1 hour. BUTTE GREEK BASIN 297 Butte Creek near Chlco, Calif. Location.- Water-stage recorder, lat. 39°44', long. 121*42', in sec. 25, T. 22 N., R. ii'B., half a mile downstream from Little Butte Creek and 7i miles east of Chlco. Altitude of gage, about 350 feet (from topographic map). Drainage area>- 148 square miles. Records available.- November 1930 to September 1943. Average diaciiai^eT- 12 years (1931-43), 415 second-feet. discharge_ during^ year,. , 6,600. second-feet Jan.-,__ 21 (gage height, 9.20 reet), from rating curve extended above 2,600 second-feet by logarithmic minimum, 82 second-feet (regulated) Oct. 30. , 1930-43: Maximum discharge, 17,000 second-feet Dec. 11, 1937 (gage height, 18.9 feet), from rating curve extended above 6,000 second-feet oa basis of logarithmic plotting; minimum recorded, 22 second-feet (regulated) Aug. 19, 1939. Remarks.- Records good except those for September, which are fair. Butte Creek receives considerable water above station from West Branch Feather River by way of De Sibla and Centervllle power plants. Pacific Gas & Electric Co. has furnished the following record of this flow for 1942-43: Mean discharge Runoff Month (second-feet) (acre-feet) 40.3 2,480 55.4 5,500 75.7 4,540 75.7 4,540 80.5 4,470 84.3 5,190 70.8 4,280 86. S 5,540 80.2 4,780 57.5 5,540 54.5 5,550 September...... 56*9 2,510 Water year J.948-43 66.5 48,060 Discharge* in a*oead-feet. water year October 1942 to September 1943 De» Oct. Nov. Pec. Jan Feb. liar. Apr. May June July Aug. Sept. 1 134 124 209 3S6 1,280 560 722 698 487 205 146 136 Z 128 152 226 557 1,020 552 680 560 409 205 , 13" 134 3 132 175 280 516 854 513 669 642 375 ISO 1Z1 127 4 113 175 204 274 796 536 647 610 362 183 ieo 127 5 126 152 199 277 728 647 925 585 591 188 144 127 6 150 140 257 260 658 1,050 854 560 338 198 149 129 7 118 140 265 250 802 1,130 777 536 3E5 193 ire 132 e 128 128 826 244 841 1,860 925 509 313 169 irs, 127 9 1E6 152 188 204 686 2,740 841 3S7 299 171 in 154 10 132 146 220 214 610 E,420 777 500 890 169 136 134 11 140 14& 201 220 560 1,910 710 453 275 171 136 127 12 158 158 209 220 552 1,570 674 444 293 166 149 129 13 142 136 804 217 515 1,570 663 421 269 169 146 125 14 136 142 228 209 500 L,690 669 598 890 151 146 120 15 156 217 196 212 487 i,460 663 576 E49 162 1*6 113 16 140 199 199 217 487 1,850 669 391 349 162 146 114 17 152 574 206 214 487 1,140 658 384 238 157 1*6 118 16 152 569 175 . 184 474 1,080 636 368 255 146 144 111 19 150 296 192 184 461 906 600 569 227 144 146 111 20 156 857 180 504 461 847 556 358 225 157 134 -116 21 L34 218 192 4,210 478 790 575 55E 827 164 138 116 22 150 180 219 8,350 796 765 570 352 230 164 136 116 23 128 184 850 3,960 958 698 556 555 227 160 140 118 24 132 196 1,070 8,050 802 658 560 342 227 162 138 108 28 126 212 1,070 1,550 771 651 461 385 285 151 138 95 26 188 187 551 1,690 692 680 491 315 220 157 138 103 27 134 247 412 1,570 651 710 527 32E 217 162 138 118 28 132 220 922 1,210 580 674 1,110 302 210 146 138 108 29 L30 212 732 1,630 866 886 296 210 155 156 121 30 128 220 486 3,000 860 754 318 205 149 134 114 31 128 481 1,790 753 559 149 136 Second- Runoff in Month foot-days Maximum Minimum Mean ffora-feet Ooto ber...... 4,079 158 113 138 8,090 Hove 6,180 574 1E4 eoe 12,260 Dace her...... 11,069 1,070 173 357 21,960 Calendar year 194£ 197,510 7,600 113 541 391,800 Janu ary £9,953 4,210 184 966 59,410 Fetor 18,919 1,280 461 676 37,530 Hare 33,236 2,740 513 1,072 65,920 Apri 1...... 80,785 1,110 461 695 41,230 May. 15,155 698 296 424 86,090 June 8,534 487 205 278 16,530 July 5,173 205 144 167 10,260 August ...... :.....:...... 4,360 160 151 141 8,650 September...... 3,608 156 95 120 7,160 Water year 1948-43 ...... 158,851 4,210 95 435 315,100 Peak discharge.- Jan. 21 (1 p.m.) 6,600 sec. -ft. 5 Jan. 25 (6:30 a.m.) 4,920 sec. -ft.; Jan. 50 (7 a.m.) 5,610 seo.- ft.; Bar. 9 (8 a.m.) 3,070 sec. -ft.; Har. 14 (2 p.m.) 2,050 sec. -ft. Time basis: Pacif ic war time. To convert war time to standard time, subtract 1 hour. 298 FEATHER RIVER BASIN Lake Almanor near Prattville, Calif. Location.- Staff gage, lat. 40°10'3011 , long. 121°05'2511 , In NWi sec. 2f, T. 27 N., R. 8 E., at outlet tower at dam on North Fork Feather River and 5 miles routheast of Prat-tvllle. Datum of gage Is'4,400 feet above mean sea level; gage readings have been reduced to elevations above mean sea level. Drainage area.- 506 square miles. Records available.- October 1913 to September 1943. 1913 to 1939, summary records only, In Water-Supply Paper 881. Extremes.- Maximum contents observed during year, 650,300 acre-feet June 12 (elevation, 4,474702 feet); minimum observed, 506,400 acre-feet Dec. 21 (elevation, 4,467.09 feet). 1913-43: Maximum contents, 798,900 acre-feet June 9, 1928 (elevation, 4,430.5 feet); minimum, 5,230 acre-feet Feb. 5, 1918 (elevation, 4,416.1 feet). Remarks,- Lake is formed by earth-till dam; storage began in July 1913; dam raised to elevation 4,455 feet above mean sea level in 1917 and to 4,515 feet above mear sea level in 1927. Usable capacity, 649,800 acre-feet between elevatiors 4.400 feet (bottom of outlet to river) and 4,474 feet (present upper storage Unit). Water Is diverted by tunnel to Butt Valley Reservoir for use in Caribou power plant and some is released at Almanor Dam down natural cliannel of river. (See reccrds for North Fork Feather River near Prattville on following page.) Records show contents at midnight interpolated from readings made at 7 a.m., all of which is available for diversion to Butt Valley Reservoir except 15,700 acre-feet (below elevation 4,42C feet) that can only be^released down river. Cooperation.- Record of contents, furnished by Pacific Gas & Electric Co., under general supervision of Geological Survey, obtained in connection with a Federal Power Corn- mission project. Contents, in acre-feet, water year October 1942 to September 1343 Day Oct. NOT. Dec. Jan. Feb. Mar. Apr. May June 3r\y Aug. Sept. 1 563, 40C 511.50C 514,400 525,700 551,100 566,500 590,500 620.300 649,600 649,200 635,900 604, OOC 2 561.70C 510, 70C 514,200 527,500 553,100 566,700 590,300 621,800 649,200 649,000 634,800 603, 20C 3 560, 30C 511, 30C 513,900 528,700 555,200 566,900 590,300 623,500 646,700 648,500 633,000 602, 10C 4 558, 60C 512, 50C 513,700 529,100 556,800 567,500 590 , 800 626,100 647,600 648,100 631,500 600, 90C 5 556, 80C 513, 50C 513, 70C 529,100 556,900 568,900 591,600 638,500 647,400 647,000 629,800 599, 40C 6 555, OOC 514,400 513,700 528,900 561,300 572,000 592,600 629,800 647,400 646,300 628,000 597, 90C 7 553, 30C 515,40C 512,900 5C8.900 564, SOO 574,500 593,900 630,900 648,500 646 - 100 626,700 596, 90< 8 651 , 70C 516, 40C 512,500 527,700 565,400 579,300 595,800 632, gOO 648,700 645.500 625,000 595,801 9 550, 10C 517,800 512,500 526, 900 565,600 589,100 598,800 633,700 649,200 646,100 6E3,300 595, OOC 10 548,50C 518,400 512,300 526,300 565,600 591,400 601,100 655,200 649,60'' 648-100 622,4)00 593, 90C 11 547, OOC 517, 6dO 511,900 525,700 664,800 594 , SOO 602,400 635,600 650,100 649,200 620,700 592, «0C 12 545, 40C 516,400 511,100 524 , 900 563,800 595,000 603,800 636,300 650,500 640,600 619,900 591, 20C 13 542,200 515,600 510,300 524,100 863,400 595,200 605,100 637,200 649,600 649,200 616,800 589,50C 14 541,000 516,000 509,500 523,400 563,000 594,800 607,000 640,400 849,400 648,500 617,700 588,*OC 15 533, 60C 516, 40C 509,100 522,800 562,800 593,300 609,600 642,000 649,400 647,600 616,400 587,60C 16 537, 70C 516,400 508,700 522,400 565,000 592,900 611,500 642,600 649,400 647,000 614,700 586, 80C 17 536, 10C 518,200 508,300 522,000 563,000 593,500' 612,100 643,300 649,800 646,300 614,100 585, 70C 18 534, 30C 518,600 507,800 521,200 562,600 593 , 100 611,700 643,700 649,800 645,500 614,900 584, 70C 19 - 532, 30C 518,800 507,400 521,000 562,500 592,600 610,900 644,100 649,600 644,600 616,000 583, 60C 20 530,500 518,200 506,800 526,100 562,300 592,200 609,600 645,000 649,200 643,900 616,400 582, 60C 21 528,700 517,400 506,400 536,900 562,500 592,200 609,400 645,900 648,700 643,000 616,600 581, 60C 22 526,900 516,800 506,800 536,900 562,800 592,000 611,500 646,300 649,000 642,600 617,100 580, 50C 23 525, 10C 516,200 507,800 537,300 563,600 591,400 613,400 64?, 000 648,700 642,400 616,800 579, 70C 24 524,100 515,800 509,100 538^800 565,600 539,900 616,200 648,100 648,700 642. OOO 616,600 578, 90C 25 522,600 515,600 511,500 540,000 565,600 588,900 616,100 649,200 649,800 641,100 814,300 578, OOC 26 520,400 515,800 513,900 541,200 565,800 589,100 618,800 849,800 649,800 640.600 612,600 577, OOC 27 518,400 516.POO 514,800 541,200 566,200 589,300 619,900 649,600 '649,400 639.900 611,100 576, OOC 28 516, 40C 515,800 518,400 541,600 566,500 569,900 620,500 649,000 649,200 639,i«>; 609,800 674, 90C 29 514, 60C 515, SOO 520,600 544,000 561,800 6i9,OOO 348,760 649,800 630.000 608,800 574, 10C SO 515,160 515,200 62£,600 548,100 ' _ 591,000 619,200 648,600 649,600 637,400 006,800 573 , 10C 31 512,700 - 5SS.300 549,500 - 890,800 " 649,000 ~ 636.500 605,100 "" Honthly el«vafclon and contents, water year .October 1948 to September 1943 Change In contents Elevation Contents Date (acre-feet) during month freet) (acre-feet) 4,470.01 565,000 4,467.41 512,700 -5£;T-00 4,467.54 515,200 +2,500 4,467.98 523,900 +8,700 - _ +18,500 ,469.25' 549,500 +25,600 ,470.08 566,500 +17,000 ' ,471.25 . 590,800 +24,300 ,472.59 619,200 4-28,400 May 31...... ,473.96 649,000 +29,800 ,473.99 649,600 +600 ,473.39 656,500 -15,100 ,471.93 605,100 -51,400 Sept. 30...... ,470.40 573,100 -32,000 Water year 1942-43 - - +8,100 giroe iansiaa ?aoifio war I lime. To convert mi- time to standard time, auueraet l hour. FEATHER RIVER BASIN 299 North Fork Feather River near Prattvllle, Calif. location.- Water-stage recorder and compound rectangular concrete weir, lat. 40°10', long. 121°06' , in SW-i sec. 28, T. 27 N., R. '8 E., half a mile downstream from Almanor Dam, 5 miles southeast of Prattville, and 9 miles upstream from Butt Creek. Altitude of gage, about 4,380 feet (from topographic map). Drainage area.- 567 square miles. . Records available.- March 1914 to September 1943 (tables of daily discharge for July 1921 to September 1936 include water diverted through Almanor-Butt Creek tunnel). Jjne 1905 to March 1914 at site near that of Almanor Dam. Average discharge.-*37 years (1905-10, 1911-43), 892 second-feet, including diversion through Almanor-Butt Creek tunnel. Extremes.- Maximum discharge' during year, about 2,650 second-feet (regulated) Apr. 18, 19 (ho gage-height record); minimum, 4.4 second-feet (regulated) Sept. 23-30. Extremes do not include diversions through Almanor-Butt Creek tunnel. 1905-4G: Mixlmum discharge, 10,000 second-feet Mar. 19, 1907, before construction - of dam ('gage height, 16.2 feet, at former site), from rating curve extended above 3,700 second-feet; no flow (result 'of regulation) Apr. 15, 16,,1914, at times diring January to April 1919, and on Apr. 21, 1923. Remarks.- Records good. For storage, see records for Lake Almanor near Prattville (p. 298). Figures of daily discharge show release from Lake Almanor down North Fork Feather River. Figures of monthly discharge show total runoff also. 'Water is diverted for. power from Lake Almanor through Almanor-Butt Creek tunnel to Butt Creek. Cooperation.- Water-stage recorder graph and one discharge measurement, furnished by racirie uas & Electric Co., obtained in connection with a Federal Power Commission project. Rating table, water year 1942-43 (gage height, In feet, and discharge, In second-feet) ].4 5 2.0 50 2.8 136 4.6 915 1.5 9 2.1 62 3.0 236 5.0 1,150 1.6 14 2.2 76 3.3 330 ' 5.5 1,510 1.7 21 2.3 91 3.6 440 6.0 1,910 l.S 29 2.4 107 3.9 556 6.5 2,310 1.9 39 2.6 1-44 4.2 706 7.0 2,760 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jtn. Feb/' Mar. Apr. May June July Aug. Sept. 1 514 156 46 47 a47 47 526 553 al, ISO 18 a6.f 191 2 514 152 46 47 a47 47 526 553 a2, 300 18 6.E 129 3 514 87 46 47 a 47 47 526 328 al, 210 18 103 158 4 a514 46 46 47 a47 47 531 131 al,140 IS 316 196 5 a514 47 47 47 a 47 47 a410 298 a701 18 352 277 6 a514 47 47 47 a47 48 a!21 1,050 a296 ie 327 290 7 a514 47 47 47 47 49 a!21 787 34 13 310 226 8 a514 47 47 47 47 50 a!21 102 33 5 280 223 9 a514 47 47 47 47 49 a 121 20 34 5 236 223 10 514 47 47 47 47 221 a!21 20 34 5 a231 136 11 514 47 47 47 47 1,050 121 13 221 5 a228 166 12 514 47 47 47 47 1,960 121 13 1,390 5 a228 166 13 514 47 47 47 . 47 2,610 121 14 5S 5 a228 31 14 514 47 a 47 47 47 2,620 121 14 18 5 a228 5 15 514 47 a47 47 47 2,630 121 14 IS 5 228 5 16 514 47 a47 47 47 2,080 631 14 .18 5 228 4.7 17 514 47 a47 47 47 1,790 2,180 14 18 5 228 4.7 18 514 47 a47 47 47 2,060 a2,650 14 IS 5 228 4.7 19 5l4 47 a47 47 47 2,050 a2,650 14 18 5 175 4.7 20 514 46 a 47 46 47 2,030 a2,030 14 18 5 131 4.7 21 514 46 a47 50 47 2,030 a736 14 IS 5 131 - 4.7 22 514 46 a47 47 47 2,040 a290 14 18 5 131 4.7 23 514 46 a47 47 47 2,040 a!34 14 IS 5 a218 4.4 24 514 46 a47 47 47 1,880 a 134 a!4 IS 5 a 330 4.4 25 514 46 a47 47 47 1,200 134 al4 18 5 a256 4.4 26 514 46 a47 47 47 69S 693 a 366 18 5 a210 4.4 27 514 46 47 47 47 526 1,070 a 701 . IB a6.5 188 4.4 28 &14 46 47 47 47 526 1,910 a526 18 a6.5 177 4.4 29 514 46 47 47 792 2,250 a299 IS a6.5 230 4.4 30 377 46 47 47 1 ,020 1,010 a299 18 a6.5 286 4.4 31 156 47 47 709 a!32 a6.5 220 Observed Diversion Adjusted for diversion Second- Month Maximum Minimum Mean Runoff In acre-feett Mean Runoff In foot -days acre-feet acre-feet Octo 39 514 156 498 30,620 5S.970 1,457 89,590 Hove 52 156 46 55.1 3,2SO 43,S40 792 47,120 Deeo 53 47 46 46.9 2,880 44,930 773 47, 310 Ca lendar year 1942. 179,463 2,670 31 492 356,000 459,100 1,126 315,100 Janu ar n . i 59 50 46 47.1 2,890 47,000 311 49,890 lebr 16 47 47 47.0 2,610 38,970 749 41,580 Marc 93 2,630 47 1,129 69,410 30,900 1,615 100,310 Aprl 1 22 231 2,650 121 741 44,090 51,810 1,612 95,900 May. 73 1,050 13 206 12,640 53,710 1,079 66,350 June ...... e, 937 P.300 IS 298 17,730 52,670 1,133356' 70,400 July g4S.F 18 5 S.02 493 52,120 52,610 Augu Co.O 352 6.5 217 13,3*0 43,010 1,011 61,350 Sept 90.1 290 4.4 86.3 5,140 56,920 1,043 62,060 ter year 1942-43 . 103,416.6 2,650 4.4 2S3 205,100 579,800 1,084 785, 000 t Diversion through Almanor-Butt Creek tunnel, computed as difference In flow between the two sta tions on Putt Creek. There ts some unmeasured Inflow between the two stations. a No gage-height record; discharge computed on basis of records furnished by Pacific Gas & Electric Co. Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour. 300 FEATHER RIVER BASIN North Fork Feather Rive,r at Big Bar, Calif. Location.- Water-stage recorder, lat. 39°48 f , long. 121°27', In NEi sec. 6, T. 22 N., R. 5 K., between railroad and highway bridges, a'quarter of a mile downstream from Big Bar and 6 miles upstream from Intake of power plant at Big Bend. Altitude of gage, about 1,320 feet (from topographic map). \ Drainage area.- 1,945 square miles. Records available.- October 1939 to September 1943. February 1911 to August 1930 and Oct8ber 1931 t6 September 1937, at site three-quarters of a mile upstream. Average discharge.- 27 years (1911-12, 1913-20, 1921-30, 1931-37, 1939-43) 2,729 second- i feet. Extremes.- Maximum discharge during year, 29,8QO second-feet Jan. 21 (gage height, 19.25 reeTTT minimum, 1,040 second-feet (regulated). Dec. 14. 1911-37, 1939-43: Maximum discharge, 66,900 second-feet Dec. 11, 1937 (gage height, 29.7 feet at present site, from floodmarks), from rating curve expended above 34,000 second-feet by logarithmic plotting; minimum, 188 second-feet (regulated) Nov. 6, 1939. Remarks.- Records good. Flow rerulated by Lake Almanor (see p. 298), Bucks Creek Reservoir (see p. 307), power plants, aad diversions. Cooperation.- Water-stage recorder record furnished by Pacific Gas & Electric Co. Rating table, water Tear 1942-43 (gage height, In feet, and discharge, la second-feet) 5.1 1,090 5.5 2,790 8.5 6,280 3.5 1,330 6.0 3,260 9.5 7.SOO 4.0 1,650 6.5 3,780 11.0 10,300 4.5 2,000 . 7.0 4.330 13.0 14,000 5.0 2,380 7.5 4,930 15.0 18,200 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. NOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept'. 1 2,080 1,590 2,250 4,300 6,240 4,590 8 ,120 5,930 5,520 1,900 1,460 1,560 2 2,140 1,760 2,590 4,010 5,410 4,350 7 ,980 5,590 7,140 1,870 1,580 1,490 3 S,160 1,840 2,280 3,390 4,930 4.280 S ,010 5,680 5,220 1,660 1,570 1,440 4 2,000 1,660 2,120 3,330 4,800 4,560 7 ,780 5,280 5,360 1,680 1,710 1,470 5 2,130 1,660 2,010 3,140 4,750 5,580 8 ,800 5,100 4,590 1,620 1,800 1,420 6 2,160 1,550 1,990 2,970 4,400 7,320 7 .880 5,900 4,220 1,750 1,800 1,560 7 2,130 1,520 2,080 2,890 4,960 8,380 7 ,580 5,780 3,420 1,730 1,760 1,570 e 2,130 1,520 2,030 2,670 5,750 11,800 8 ,230 4,530 3,230 1,700 1,710 1,540 9 2,150 1,590 2,100 2,630 5,070 15,300 7 ,450 3,580 3,000 1,680 1,730 1,520 10 2,180 1,580 2,100 2,390 4,640 16, 700 6 ,800 4,010 2,910 1,570 1,690 1,510 11 1,940 1,530 2,080 2,470 4,350 16, 600 6 ,280 3,890 2,810 1,450 1,800 1,450 12 1,990 1,540 2,010 2,440 4,150 14,800 6 ,220 3,670 3,640 1,440 1,680 1,450 13 8,030 .1.540 1,730 2,290 4,080 12, 200 6 ,340 3,580 3,620 1>540 1,640 1,460 14 S,070 1,520 1,930 2,180 3, 880 14,500 6 .580 5,470 2,680 1,680 1,660 1,430 15 2,060 « Second- Runoff in Month foe t-days Maxima Minimus Mean aore-fset Ootc 63,220 2, 160 1,620 2,039 125,400 Neve 63,750 5,330 1,501 2,128 126,400 December ...... '...... ,...... ,... 93,510 7,510 1,730 3,016 185,500 Calendar year 1942 1,609,400 31,500 1,460 4,409 3,192,000 Janu ary 194,350 S4,600 g»Q7n 6,266 588,300 Febr 138,820 6,240 3,W» 4,688 271,400 Marc h...... 262,810 16,700 4,gr* . 9,488 579,600 Apr! 1...... '...... ,... 223,020 9,360 8, 6®"* 7,434 442,400 Bay. 125,120 6,930 8,08") 4,039 248,200 June 91,990 7,140 1,781 , 3,066 182,600 July 50,960 l,eOO 1,440 1, 644 101,100 Augu 51, 190 1,800 1,451 1,661 , 101,500 Saptsober...... '...... ,...... 41,840 1,670 '" 1,871 ' 1,566 82,900 ffater y»ar 1942-48 ...... 1, 427,880* 84,600 1,871 s.eig 2,332,000 peak aisoharre.- Jan. 21 (9 p.m.) 29,800 aee.-ft.j Jan, 28 (6 a.«.) ,27.000 lee.-ft.i M»r. 11 Pacific war tlm. So oonTert war tin tc standard time, subtnaut FEA.TIISR RIVER BASIN 301 Feather River near Oroville, Calif. Location.- Vfeter-stage recorder, lat. 39°32', long. 121°29', in NEi sec. 2, T. 19 N., R. 4 E.. 75 feet upstream from bridge on Feather River Highway, 2 miles downstrean from confluence of North and Middle Forks, and 3 miles northeast of Oroville. Datun of gage is 102.02 feet above mean sea level, datum of 1929. Drainage area.- 3,611 square miles. Records available.- October 1934 to September 1943. January 1902 to September 1934 at site at Orovllle, 5 miles downstream. Average discharge.- 41 years, 5,965 second-feet. Extremes.- Ttolmum discharge during year, 108,000 second-feet Jan. El (gage height, 5C.2 feet); minimum, 1,390 second-feet Sept. 26 (gage height, 6.12 feet).- 1902-34 at Oroville: r&xinium discharge observed, 230,000 second-feet Mar. 19, 1907 (gage height, 28.2 feet, reading on U. S. Weather Bureau staff gage at bridge, eq^lva- lent to 39.3 feet at staff gage at cable 1,000 feet upstream; probably had beer higher during night); minimum, 300 second-feet (estimated, regulated) Nov. 9, 1931 (gr.ge height, -1,7 feet). 1934-43 near Oroville: Maximum discharge, 185,000 second-feet Dec. 11, 1937 (gage height, 73.6 feet, from f loodraarks), from rating curve extended above 62,000 second- feet on basis of velocity-area studies and verified by slope-area computation; minimum, 462 second-feef Dec. 10. 1934 (gage height, 3.55 feet). Remarks.- Records excellent except those above 40,000 second-feet, which are good. Flow regulated by power plants and Lake Almanor (see p. 298), Bucks (see p. 307), Butt Valley, and other smaller reservoirs. Cooperation.- One discharge measurement furnished by Pacific Gas & Electric Co. Rating table, water year 1942-43 (gage height, in feet, and discharge, in second-feet) 6.3 1,470 S.O 8,380 12.0 4,'740 20.0 11,200 40.0 40,700 6.6 1,6SO 6.5 2,650 13.0 5,370 23.0 14,300 45.0 54,700 6.S 1,720 9.0 8,940 14.0 6,070 26.0 1*7,700 50.0 72,000 7.1 1,880 10.0 3,540 16.0 7,620 30.0 22,900 7.5 2,100 11.0 4,140 18.0 9,300 35.0 30,600 Discharge, in second- feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan, .Feb. Mar. Apr. May June July Aug. Sept. 1 2,400 1,620 4,020 9,700 15,200 9,260 15,200 11,700 9,820 S,630 1.91C 1,800 2 2,380 1,940 4,320 8,620 12,900 8,620 15,000 11,600 11,100 2,690 1,67C 1,,760 3 2,430 2,540 4,590 7,140 11,400 8,420 15,100 11,100 8,310 2,640 1.90C 1,740 4 2,240 2,350 3,810 6,330 10,900 8,940 14,600 10,800 8,100 2,420 2.07C 1,720 5 8,250 2,130 3,480 5,860 10,500 11,000 16,900 10,200 7,040 2,370 2.19C 1,770 6 2,380 1,960 3,540 6,440 9,660 15,100 15,800 10,400 6,630 2,450 2,E2C 1,760 7 2,400 1,940 3,600 5,070 10,800 17,400 15,000 10,300 5,540 2,380 2.13C 1,770 8 2,350 1,890 3,270 4,740 12,200 24,500 16,500 e,eoo 5,150 2,370 2.12C 1,"90 9 2,360 2,040 3.270 4,590 10,600 ' 36,200 15,000 7,480 4,920 2,360 2.08C 1,800 10 2,350 1,920 3,240 4,320 9,840 39,400 13,500 7,140 4,690 2,130 2,02C 1,800 11 2,280 1,950 3,180 4,110 9,210 36,300 12,400 7,170 4,510 2,140 2.04C 1,780 12 2,310 1,960 3,060 4,080 8,580 31,500 12,100 6,760 4,880 2,080 2.01C 1,740 13 2,320 1,960 8,760 3,930 8,340 26,800 12,300 6,450 5,680 2,210 2.00C 1,720 14 2,320 1,960 2,820 3,840 8,100 26,300 12,800 6,220 4,200 2,210 2.00C 1,690 15 2,400 2,790 3,060 3,690 6,140 B5.200 13,500 6,170 4,220 2,270 2,OOC 1,620 16 2,350 2,790 3,000 3,660 8,300 21,400 14,000 5,750 3,940 2,200 1,94C 1,5'60 17 2,310 6,070 2,970 3,510 8,420 18,700 15,000 5,380 3,770 2,240 1,98C 1,540 19'18 2,160 12,800 2,910 3,350 6,580 17,500 15,300 5,500 3,660 2,090 1,99C 1,540 2,290 7,340 2,8£0 3,360 8,580 16,000 15,000 5,380 3,560 E,150 1,970 1,530 20 2,280 4, BSD B,730 4,440 8,850 14,700 14,600 5,410 3,440 2,170 1,940 1,520 21 2,400 3,990 2,790 57,100 9,210 14,10p 13 , 000 5,380 3,220 2,160 1,B6C 1,520 22 2,320 3,710 2,930 59,400 11,500 14,000 12,500 5,470 3,370 8,160 1,770 1,520 23 2,330 3,330 6,500 ,64,500 13,000 13 , 400 11,900 5,840 3,140 2, BOO 1,840 1,540 24 2,310 3,330 15,600 38,000 12,400 12,900 11,800 5,820 3,030 8,160 1,950 1,560 25 8,160 3,980 13,300 26,200 11,800 12,400 11, BOO 5,680 2,980 2,130 2,040 1,560 26 2,350 3,4SO 8,260 23,200 10,800 12,900 10,200 5,570 2,740 2,130 1,960 1,500 27 2,350 4,710 7,500 21,000 10,200 14,300 11,100 5,920 2,480 2,110 1,950 1,520 28 2,280 4,950 22,600 17,200 9,800 14,600 17,600 5,920 2,660 2,060 1,930 1,600 29 8,350 4,350 19,700 17,700 17,000 16,200 5,400 2,690 2,060 1,910 1.620 30 2,310 4,190 14,500 29,700 18,800 13,700 5,160 2,700 2,010 1,840 1,620 31 2,100 12,200 19,900 16,600 6,640 1,930 1,840 Seccnd- Rtnoff in Month foct-days Maximum Minimum Mean acre- feet Octo ber...... 71,820 2,430 2,100 2,317 148,500 Hove 104,150 12,200 1,820 3,472 206,600 Deo««b»r...... 192,270 22,600 2,730 6,802 381,400 Calendar year 1942 3,020,780 88,400 1,820 8,276 S, 992, 000 Jami Etry. . 473,710 64,500 3,330 15,280 939,600 Febr tutrv 288,010 15,200 8,100 10,290 571,300 Hare "*:::::::::::::::::::::::::::::::::;: 576,240 39,400 8,420 18, 590 1,143,000 Aprii...... 418,800 17,600 10,200 13,960 830,700 my. 222,510 11,700 5,160 7,178 441,300 June 14B,170 11,100 2,480 4,739 882,000 July 69,310 2,690 1,930 2,236 137,500 August ...... 61,250 2,220 1,770 1,976 121,500 Sept eaber...... 49,510 1,800 1,500 1,650 98,200 »ater year 1942-43 ...... 2,669,750 64,500 1,500 7,314 5.296,000 Peak discharge..- Dec. 28 (7 p.'ra.) 30,400 nac.-ffc. .T«m. 21 (ft. so p.m.) 108,000 sec. -ft. Ja->. 23 (9 a.m.) 74,600 sec.-ft.; Jan.'so (10|30 a.m.j 38,400~sec.-ftl;"MarT io'(4~a.m.) 40,700 sec.-ft.; Mar. 29 (12 p.m.) 20,400 sec.-ft. Time baala; Pacific war time. To convert war time to standard time, subtract 1 hour. 302 FEATHER '.A BASIN Feather River at Nicolaus, Calif. Location.- Water-stage recorder, lat. 38°54'00", long. 121°35'05", at Nicolaus, Sutter county, 0.4 mile downstream from highway bridge. Zero of gage is datum of Corps of Engineers, u. S. Army. Records available.- June 1921 to September 1943 (low-water periods only) in reports of (ieoiogicai survey. 1920-21 and 1926-38 (gage heights for high-water periods) and 1939-43 (discharge) in reports of Division of Water Resources, Department of Public Works, State of California. Extremes.- Minimum discharge during year, 156 second-feet Sept. 9 (gage height, 20.78 1921-43: NO flow Aug. 2-18, 1924, July 11-22, 24, 26, Aug. 1, 1931. Remarks.- Records good. Flow regulated by many diversions, power plants, and storage aoove station. Cooperation.- Records collected and prepared In cooperation with Division of Water Resources, Department of Public Works, State of California. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 2,ieo 2,020 6,030 _ 21,200 9,600 1,680 386 352 2 2,260 1,860 5,770 - 19,400 15,800 1,600 434 372 3 2,180 1,940 6,160 - 19,000 15,100 1,600 393 333 4 2,260 2,440 6,690 - 18,000 11,100 1,600 393 198 5 2,260 2,620 5,900 - 17,400 9,770 1,550 379 180 6 2,100 2,350 5,380 _ 16,300 8,320 1,350 372 174 7 2,130 2,180 5,640 - 15,800 7,400 1,430 379 180 8 2,260 2,100 5,900 - 14,900 6,290 1,390 420 174 9 2,350 2,100 5.250 - 13,300 5,640 1,310 434 168 10 2,260 2,100 4,990 - 11,600 5,380 1,270 441 186 11 3,350 2,100 4.860 _ 10,400 4,990 1,100 441 186 12 2,350 2,260 4,730 _ 10,300 4,860 1,010 406 259 1"* 2,350 2,180 4,600 _ 10,100 4,990 878 340 271 14 2,350 2,180 4,340 - 9,440 5,640 eoe 333 247 15 2.350 2,180 4,210 - 8,640 4,470 762 346 247 Ifi 2,350 2,620 4,340 SO, 400 , 8,000 4,080' 75£ 315 284 17 2,350 3,430 4,340 21,200 7,26« 3,690 770 309 406 18 2,350 8,800 4,340 21,700 6,830 3,190 762 309 "575511 19 2,180 16,900 4,210 1 1,900 .6,690 3,070 766 290 20 2,100 12,300 4,080 f irSOQ g,420 2,960 710 278 612 21 2,180 8,000 3,820 20,600 6,420 2,830 695 - 302 650 22 2,260 6,550 3,950 19,400 6,830 2.6SO 680 366 725 2,260 5,770 5,770 19,200 7,110 2,530 648 346 755, 24 2,180 5,120 16, 100 18,800 8,000 2,440 620 321 800 25 2,180 4,990 23,000 18,800 8,800 2,260 539 321 901 ?6 2,180 5,770 22,300 18.000 8,320 S,180 490 302 1,140 27 2,100 5,640 16,800 16,300 7,850 2,090 455 315 1,220 28 2,180 7,400 14,500 18,200 8,160 1,930 487 321 1,270 29 2,180 7,550 28,700 24, 100 8,000 1,760 437 346 L.390 3u 2,180 6,550 32,100 23,600 7,250 1,760 406 1,550 31 2,100 26, 300 6,690 " 413 366 Second- Runoff in Month foot-days Kajciaius Mininum WHW December ...... t ...... 898, *CHJ S2,100 3,880 9,619 585,300 Calendar year ...... - - - - JaRuarw ...... _ ^ _ _ Febr Marc tori \ IB-30.. 303.400 24,100 16,30 20,630 601,800 May 334,400 21,200 6V42C . 10,796 663,300 158,730 15,800 1,760 5,291 314,800 July ...... 28,912 1,680 ,' 413 933 57,360 Augu 11,110 441 276 358 September ...... 16,316 1,560 168 544 32,330 - - - - Hater year ...... I Time baa 1st Pacific war time. To convert war time to standard tl»e, subtract 1 bow. FEATHER RIVER BASIN 303 Butt Creek above Almanor-Butt Creek: tunnel, near Prattvllle, Calif. Location.- Water-stage recorder, lat. 40°12', long. 121°12', In NWi sec. 16, T. 27 N., R. * 7 ti., H miles upstream from outlet of tunnel from Lake Alnanor to Butt Creek and 2& miles southwest of Prattvllle. Altitude of gage, about 4,300 feet (from topogreohlc map). Drainage area.- 64.3 square miles. Records available.- October 1936 to September 1937, October 1938 to September 1943. Extremes.- fteximum discharge during year, 758 second-feet Jan. 21 (gage height, 5.14 reetj; minimum, 25 second-feet Aug. 11. 1936-37, 1938-43: Maximum discharge, 1,500 second-feet Feb. 28, 1940 (gage height, 5.75 feet); minimum, 3.2 second-feet Dec. 11, 1936. Remarks.- Records good except those for periods of no gage-height record, which are fair. Waliack ditch, above station, occasionally diverts several second-feet Into Yellow Creek Basin. Cooperation.- Water-stage recorder graph and one discharge measurement, furnished by th» pacific oas & Electric Co., obtained In connection with a Federal Power Coamlsslon Project. Rating tables, water year 1942-43 (gage height. In feet, and discharge, In second-feet) (Shifting-control method used Aug. 1 to Sept. 30) Oct. 1 to Jan. 81 Jan. 22 to Sept. 30 2.5 3.6 210 2.5 26 3.5 182 2.6 3.0 3.8 256 2.7 46 3.S 254 2.7 3.2 130 4.0 310 2.9. 72 4.2 372 2.8 3.4 168 3.2 121 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 31 3S 62 a90 65 aSO 209 191 164 45 31 30 ? 31 39 SI aSO 65 80 209 182 114 44 32 30 X 31 5S 65 a70 64 81 206 175 117 43 32 30 4 30 42 5E 71 64 86 209 182 1O3 43 31 30 5 30 39 a50 6V 65 130 271 175 132 43 31 30 6 31 38 a55 a65 62 171 231 171 105 39 31 30 7 31 37 a60 a65 66 193 228 160 86 37 31 8 32 41 a50 a 60 68 344 310 148 SI 9 32 38 aSO a60 53 461 S36 138 75 35 27 10 33 35 a50 a55 61 453 206 129 Y2 11 36 35 a50 a55 57 369 191 121 74 34 ' 2726 30 1?. 3S 34 a50 a50 56 325 191 116 87 33 30 13 3Y 34 49 a45 a55 302 202 108 71 30 27 30 14 a3V 49 50 a45 a55 296 221 105 69 30 27 30 15 a37 79 49 a40 a55 238 241 103 62 30 28 30 16 a37 44 49 a35 a 60 POO 254 97 59 30 28 30 17 a37 107 a 48 28 a65 163 238 93 56 31 29 30 18 a37 154 a48 a35 a70 156 223 89 52 32 30 30 19 a37 71 a46 a35 a70 144 211 87 51 32 30 30 20 a38 54 a46 aSO aYO 134 193 S6 50 36 30 29 21 a38 51 - a46 330 a80 132 Butt Creek below Almanor-Butt creek t^rrai, "'.cur PraJ-*-" ! lie, Calir. Location.- Water-stage recorder and concrete cor' ion,?. 121°11', In NVft sec. 22, T. 27 N., R. 7 E., 400 feet downs ti tunnal from Lake Almanoz> to Butt Creek and 3 miles southwest of Prat' gag<3, about 4,200 feet . (from topographic map). Drainage area.- 67.3 square miles. Records available.- October 1938 to September 194:;. Extremes.- Maximum discharge during year, 1,630 sec i., -Jan. 21 (gage height, 3.£ feetJ; minimum, 58 second-feet Nov. 7. 1938-43: Maximum discharge, 2,170 second-feet Mar. 30, 1940 (ga(?e height, 4.37 feet); minimum, 36 second-feet June 13 and Dec. 3, 1940. Remarks.- Records good. Difference in flow at this station and at station above tunnel (see preceding page) shows amount-of water diverted from Lake Almamr to Butt Creek and Butt Valley Reservoir, plus natural local Inflow from 3 square miles of intervening . drainage area. Cooperation.- Water-stage recorder graph and one discharge measurement, furnished by the Pacific Gas & Electric Co., obtained in connection with a Federal Pwer Commission project. Rating table, water year 1942-43 (gage height, In feet, and discharge, In second-feet) 0.6 1.6 296 2.9 950 .8 1.8 375 3.2 1,150 1.0 2.0 464 3.5 1,380 1.2 2.3 608 1.4 2.6 770 Discharge, in second-feat, water year October 1948 to September 1943 Day Oct. NOT. Dec. ' Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 996 996 1,020 116 96 1,030 1,200 1,160 1,160 996 9S9 9S9 2 996 1,000 1,030 105 96 1,030 1,190 1,160 1,120 996 989 996 3 996 641 1,020 92 92 1,040 1,190 1,150 1,110 9S9 9S9 -989 4 996 66 1,010 600 92 1,060 1,190 1,170 1,100 989 962 939 5 996 64 1,000 1,020 92 1,100 1,250 746 1,130 9S9 982 989 6 996 61 996 'l.OOO 90 1,160 1,220 196 1,100 989 982 989 7 J996 59 1,000 1,000 86 1,190 1,220 700 1,080 989 9S2 989 8 996 64 1,000 996 532 1.050 1,330 ,120 1,090 768 976 989 9 996 62 996 996 1,010 520 1,260 ,120 1,050 76 982 989 10 996 538 996 989 1,020 505 1,230 ,120 1,030 74 902 982 11 996 982 996 989 1,000 409 1,310 .120 1,030 70 989 969 12 996 982 996 989 1,000 366 1.S10 ,100 1,093 610 989 98» 13 989 982 996 982 1,000 3S8 i.sso 699, 1,020 982 eae 989 14 989 1,000 996 982 1,000 330 1,240 110, 1,080 989 988 938 15 969 1,030 996 989 1,000 293 1,260 «8)8 1,080 996 982 989 16 989 1,000 996*. 982 1,020 240 876 1,090 1,030 989 982 , 989 17 939 1,030 989 876 1,026 284 874 1,090 1,010 996 578' 989 ie 986 1,100 989 982 1,020 193 267 1,090 682 969 68 96g 19 996 1,020 986 982 1,020 179 244 1,080 996 «9« 66 962 20 996 1,010 98S 976 1,020 171 709 1,080 986 996 68 989 21 996 1,000 996 1,220 1,030 168 1.E50 1,090 see 1,000 66 969 22 996 906 996 1,250 1,070 168 1,210 1,060 394 696 66 988 23 ' 986 996 1,010 1,100 1,080 163 1,200' 1,060 989 989 530 982 24 996 1,010 804 1,090 1,060 696 1,190 1,090' 1*000 '989 996 9B2 25 996 1,010 116 1,060 1,050 1,130 1,170 1,-090 720 989 986 988 * 26 996 1,000 90 1,040 1,050 ,220 1,150 1,090 533 989 996 983 27 996 1,070 116 1,030 1,040 ,240 1,160 1,090 996 989 689 982 28 996 1,030 257 1,030 1,030 ,210 1,250 1,080 707 &89 689 982 29 996 1,020 163 653 _ ,290 1,190 1,070 470 988 989 962 30 996 1,020 128 111 _ ,240 1,160 1,070 996 968 989 989 31 996 130 103 - ,210 - 1,120 989 996 " Second- Runoff is Month foot-days axionn Minimum Mean acre-feet October...... 50.834 996 989 ,*8S 61,130 November...... 23,641 1,100 59 798 47,290 Dacenbor...... £4,606 'l»050 90 800 49,200 Calendar year 1943 ...... 270,282 1,180 59 740 $36,100 January...... s ... 26*480 1,250 92 863 SS.420 February...... 81,716 1,080 86 776 43,O70 March...... 22,146 1,290 163 714 43,920 April...... 58,690 1,330 244 1,090 64,840 pay.MBIT ...... 30,705 1,170 140 980 60,900 June ...... 28,720 1,160 394 987 56,970 July...... ' 27,351 1,000 70 888 54,280 August ...... 26,130 996 66 811 49,840 September...... £9,600 996 988 987 88,710 Rater year 1942-43 ...... 323,966 1,330 6» 888 642,600 baalai Pacific war tin*, fe convert war tine to standard tine, subtract 1 Jwur. FEATHER RIVER BASIN 305 Indian Creek near Crescent Mills, Calif. Location.-*- Water-stage recorder, lat. 40°05', long. 120°56', In SWi sec. 25, T. 26 H., R. 9 E., 0.8 mile upstream from Dixie Creek and li miles downstream from toivn of Crescent Mills. Altitude of gage, about 3,500 feet (from topographic map). Drainage area.- 746 square miles. Records available.- October 1930 to September 1943. January 1906 to December 1909, 1911" 'to Mirch 1918 at site 800 feet upstream. Average discharge.- 22 years (1906-9, 1911-17, 1930-43), 552 second-feet. Extremes.- Maximum discharge during year, 10,900 second-feet Jan. 22 (gage height, 14.45 feetrfrom rating curve extended above 6,800 second-feet by logarithmic plotting; minima*, 14 second-feet Aug. 21. 1906-9, 1911-18, 1930-43: Maximum discharge, 14,000 second-feet reb. 28- 1940 (gage height, 16.07 feet), from rating curve extended above 4,000 second-test by logarithmic plotting; minimum, 1.7 second-feet Aug. 25, 1931. Remarks .- Records good. Diversions above station for Irrigation In Indian and Genesee Rating table, water year 1948-43 (gage height, In feet, and discharge, on second-feet) 1.6 12 8.4 73 4.8 690 S.O 8,880 1.6 16 8.7 107 5,8 890 9.O 3,830 1.7 80 3.0 160 5.6 1,110 10.0 4,S7O 1.8 86 3.3 206 6.Q 1,360 11.0 5,970 1.9 38 3.8 274 6.6 1.68O 18.0 7,170 8.0 99 4.0 384 7.0 8,040 13.0 8,600 8.8 64 4.4 516 7.6 8,440 14.0 10,800 Discharge, in second-feet, water year October 1948 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July AIR, Sept. 1 48 59 858 1,070 1,330 1,850 8,740 1,340 453 107 28 19 2 34 60 830 935 1,100 1,2OO 2,670 1,350 494 110 86 19 3 30 78 830 780 1,010 1,180 8,740 1,340 524 111 87 19 4 30 94 806 638 973 1,880 8,680 1,300 588 108 88 18 5 31 90 186 556 940 1,300 8,660 1,280 604 108 31 17 6 31 83 177 484 S65 1,810 8,670 1,840 596 96 81 18 7 31 77 177 484 930 8,630 8,560 1,180 548 98 19 18 8 38 77 184 381 1,170 3,010 8,610 1,090 491 86 19 16 9 31 81 198 340 1,090 4,480 8,530 990 449 84 19 18 10 30 Si 196 313 951 6,360 8,810 985 417 81 19 18 11 30 82 190 895 860 6,370 1,940 890 384 77 19 19 12 38 SB 175 874 790 5,880 1,810 840 396 71 19 18 33 81 166 800 735 4,270 1,780 790 390 66 19 18 13 855- 14 33 84 166 720 4,170 1,830 740 34369(0 63 81 18 15 36 1S4 155 267 740 3,860 1,980 705 a 62 80 17 16 36 190 157 860 785 3,080 8,070 668 318 a60 19 18 17 39 396 . 156 810 S56 8,590 2,110 646 887 a&B 18 19 18 40 640 150 164 930 8,380 8,080 609 260 a56 17 19 19 41 725 145 164 1,010 1,950 1,860 574 837 aSS 17 19 20 48 548 144 198 1,O60 1,740 1,760 644 817 aS3 16 19 43 387 154 1,700 1,180 1,600 1,640 584 808 aS8 14 80 47 887 159 9,610 1,330 1,680 1,580 498 808 aSl 19 80 43 239 381 7,380 1,630 1,570 1,540 498 806 a 50 17 20 & 49 288 750 4,460 1,690 1,560 1,540 502 188 a49 16 80 25 53 850 995 8,560 1,710 1,700 1,500 494 164 48 17 19 26 57 233 895 8,03O 1,500 1,980 1,410 484 159 45 17 19 27 60 890 706 1,810 1,430 8,560 1.350 473 187 48 17 19 28 66 334 1,040 1,590 1,360 8,840 1,450 460 * 116 40 80 18 29 88 300 8,410 1,450 3,130 1,600 443 118 38 18 20 30 60 277 8,110 1,530 3,770 1,450 430 107 37 18 84 31 6O 1,400 1.6OO 3,160 430 31 19 Seoond- Mean Rw>K in Month foot-days Maximiw Minim* meaa acre-feet Goto ber 1,889 66 30 41.6 8,560 HOT* 6,596 785 59 820 13,060 DeoeBber...... 14,578 2,410 144 470 28,900 Calendar year 1948 ...... 879,869 6,430 17 767 555,100 Janu &ry 44,002 9,610 164 1,419 87,280 Fsbr 30,674 1,710 780 1,098 60,640 Marc 85,680 6,380 1,180 8,759 169,600 Apr!1...... 60,290 2,74O 1,350 8,010 119,600 84,876 1,350 430 7S3 48,150 June 9,954 6O4 107 332 19,740 July 8,081 111 31 67.1 4,130 Augu 610 31 14 19.7 1,210 Septamber...... 563 84 16 18.8 1,180 ffater year 1948-43 ...... 880,317 9,610 14 768 666,000 Peak discharge,- Dec. 89 (Sr3O ?.».) S r95O sac. -ft.; .Tan. aa (ia,Kn p, .) in.ftno MMr.-n.t HBT« V (10 p.m.) 6,690 seo.-ft.j Kar. 30*(18 m.) 3,910 sec.-ft. a No gage-height record; discharge interpolated. Time basisi Pacific war time. To convert war time to standard time, subtract 1 hour. 306 FEATHER RIVER BASIN Spanish Creek at Keddle, Calif. Location .-Water-stage recorder, lat. 40°00'05", long. 120°57'20", In ini see. 27, T. 25 .uTE".,9 " Ei'_r°° feet uPstream from Blaekhawk Creek and 0.9 mile sou-.heast of Keddle. Altitude of gage, about 3,250 feet (from topographic map). Drainage area.- 184 square miles. Records available.- October 1933 to September 1943. October 1911 to Se-)tember 1933 at sire 1.2 mij.es downstream. Average discharge.- 10 years (1933-43), 277 seconds-feet. Extremes .-Maximum discharge during year, 11,900 second-feet Jan. 21 (gage height, 12.10 reet;, from rating curve extended above 5,000 second-feet on basis oriogarltimlc plotting; minimum, 24 second-feet Aug. 20. J.UROI * umm. 1911-43: Maximum discharge, that of Jan. 21, 1943; maximum gage height, 12.43 feet Dee. 11, 1937; minimum discharge, 3.8 second-feet Aug. 12, 1934. Remarks.- Records good. Diversions above station for Irrigation In American Valley. Rating table, water year 1942-43 (gage height, In feet, and discharge, In second-feet) 1.3 26 2.3 5.5 2,200 1.5 34 3.1 354 6.0 2,710 1.7 44 3.4 49O 6.5 3,260 1.9 58 3.3 710 7.0 3,S60 2.1 78 4.2 1,010 7.5 4,500 2.3 109 4.6 1,340 8.0 5,180 2.5 164 5.0 1,700 S.5 5,900 Discharge, in second-feet, water year October 1942 tc September 1943 Day Oct. Mov. Dec. Jan. Feb. Mar. Apr. May June JvXy Aug. Sept. 1 40 52 184 310 644 449 668 476 289 71 34 32 2 40 58 188 3O6 630 430 668 478 838 86 33 31 3 40 71 184 849 467 481 674 444 816 79 33 31 4 4O 68 109 820 453 458 644 468 226 72 34 30 5 40 68 99 801 486 584 769 430 232 71 36 30 6 40 59 104 178 380 808 704 418 226 71 35 30 7 40 68 107 166 647 9S6 668 369 190 67 35 29 8 40 61 107 157 724 1,980 773 360 173 64 36 31 9 40 63 113 147 580 8,300 666 318 169 62 36 32 10 40 60 HI 140 486 8,760 673 314 164 68 96 28 11 43 59 106 138 376 8,080 526 899 . 157 61 34 30 12 49 58 100 186 346 1,410 510 876 213 69 94 31 13 49 57 97 124 333 1,130 630 868 178 55 34 31 14 49 68 97 188 348 1,480 573 845 159 54 94 37 15 49 160 95 180 368 1,160 634 248 144 52 34 34 16 49 113 94 117 376 914 644 289 132 50 33 30 17 48 365 92 104 3S9 801 612 213 124 49 33 32 18 48 745 39 39 403 698 562 204 117 49 89 32 19 48 348 88 106 403 600 635 201 111 46 28 33 20 49 190 91 182 444 535 505 193 106 44 23 34 21 48 140 97 5,660 486 51S 490 187 108 45 88 34 ?,? 48 184 95 4,200 688 580 481 137 106 44 29 33 ?3 49 111 316 4,030 717 478 485 801 100 44 33 38 24 49 113 1,040 1,950 650 458 481 801 94 40 34 33 25 48 126 717 1,120 612 478 468 198 86 40 94 39 26 49 113 363 898 546 566 407 199 79 40 99 33 50 810 330 982 606 668 418 187 78 98 - 96 S3 28 51 176 1,560 787 476 668 710 178 77 98 34 34 m 61 148 944 801 988 990 173 76 36 99 34 30 58 137 490 1,890 . 998 49O 17O 74 96 99 34 31 68 - 376 97Q - 791 ~ 196 94 93 * Secood- Runoff in Month fcct-days *"LJitflft MittlBUB Meat) acre-feet 1,488 58 40 46.1 2,330 November...... 4,176 745 December...... 8,393 1,560 88 271 16,660 Calendar year 1948 ...... 138,683 6,100 36 980 275,100 " 884^ January . 998 496 arch...... 481 908 17,414 779 407 94,640 Saf 874 898 149 1,668 94 3,890 1,089 Sep,te»ber...... 961 97 88 98.0 1,010 Water year 1942-43 ...... 116,588 5,600 88 917 , 880,800. , J& , ,, ,~~ DBe' 24 ts to 6 a«*'} 1 »*8° "«* -** ; Dec. 80 (6 f.m.) 8,490 wc.-ft,; (7*90 .p.a.7 11.900 jso.-ft.j Jan. 23 Bocks Creek Reservoir near Bucks Ranch, Calif. Location.- Mater-stage recorder, lat. 39°54', long. 121 °12', in NV£ sec. 38, T. 24 N., H. 7 E., at dam o« Bucks Creek, Z miles northwest of former Bucks. Ranch sat 15 miles nest of Quincy. Datum of gage Is 5,000 feet above mean sea level; gage res dings have been reduced to. elevations above mean sea level. Drainage area.- 28 square mllbs. Records available.- October 1928 to September 1943. Extreaes.- Maxl&ua* contents during year, 103,600 acre-feet June 2 (elevation, 5,155.9 reetj; minimum, 83,300 acre-feet Oct. 30 to Nov. 4 (elevation, 5,144.4 feetK 1928-43: Maximum contents, 105,800 acre-feet June 23, 1935 (elevation,, 5,157.1 feet); mlnlaum, 12,330 acre-feet Feb. 27, 1929 (elevation, 5,090.7 feet). Renferks.- Reservoir is formed by concrete-faced rock-fill dam complete* In 19£7; storage began In May 1S27. Capacity, 101,400 acre-feet between elevations 5,064.7f feet (sill of outlet gate) awl 5,154.85 feet (spillway crest) above mean sea level, released water flows down Bucks Creek to diversion dam, where It enters tunnel that dlscha.rges Into Grizzly Creek, theace to Bucks creek power plant. Records enow total contents at mid night of which 274 acre-feet are not available for release. Cooperation.- Record of contents, furnished by Pacific Gas & Electric- CS,, d&talned In connection with a Ffcdteral Power Commission project. Contents, IB sere-feet, water year October 1942 to September 1943 Dag Oet. NOV. Dec. Jan.' Feb. Mar. Apr. May June July Aug. Sept. 1 87,500 83,300 88,500 93>800 99,300 91,500 90,400 96,100 103,400' 108,100 97,700 94,500 2 37,400 83,300 88,800 94,300 98,800 91,200 90,400 96,700 103,600 102,100 93,400 94,600 3 87,000 es.soo 88,900 94,5OO 99,500 91,000 90,400 97,200 103,400 102,100 93.100 94,500 4 86,800 83,300 89,000 94,300 99,600 90,SOO 90,500 97,700 103,300 102,100 97,800 94,500 5, 86,700 83,800 89,100 94,900 99,600 90,7QO 90,500 97,8OO 1.03,100 LQ£,,100 97,500 94,500 6 86,300 83,6OO 69,200 95,000 99,5OO 90,700 90,500 98,200 103,000 102,100 97,200 94,500 7 86,200 S3, 600 89,400 95,100 99,400 90,800 90,600 99,300 108,900 102,100 97,000 94,500 a as, 9oa 83,700 89r6QO 95..200 98,300 90,300 90,700 99,700 102,800 108,100 9i3,800 94,500 9 86,600 83,800 89,600 96,200 98,100 91.2OQ 90,800 100,200 L02.BOO 102,000 9^,500 94,500 W 85,300 83,800 89', 700 95,200 97,900 91,800 90,800 100,700 102,800 L02,OOO »' ,200 94,600 11 85,100 83,800 89,600 95,OOO 97,000 92,000 90,8OO 101,300 108,700 102,000 9i3,000 94,600 12 85,000 83,800 89,90O 94,800 96,600 92,100 90,900 101,800 102,700 102,000 915,800 94,600 13 84,800 83,900 90,000 94,800 96,200 92,100 91,000 102,300 102,700 102,000 95,500 94,600 14 84,700 83,900 90,100 94,600 96,000 92,200 91,000 102,700 102,700 L01,9OO 93,300 94,600 15 84,700 84., 500 90,100 93,800 95,600 92,200 91,200 102,800 102,700 LOJ.900 95,300 94,600 16 84,800 ffit'.QQO 90,100 93,200 95,300 92,100 91,400 103,000 102,700 L01.900 9I-.300 94,500 17 84,800 85,600 90,100 92,800 95,000 92,000 91,500 103,000 102,600 1.01,900 95,000 94,500 IS 84,800 86,500 90, ODD 92,300 94,600 91,800 92,200 103,100 102,500 101,900 9^,800 94,500 19 84,800 86,900 89,800 9J r900 94,400. 91,500 92,700 103,100 102,500 101,900 9.% 700 94,500 20 84,800 8ff»700 89 ,.509 91,800 94,000 91,200 93,000 103,300 102,400 101,900 9*. 700 94,500 21 84,800 86,700. 89,400 92,2OO 93,700 9O,900 93,200 103,200 102,400 1.01,700 94., 600 94,500 22 84,300 87,000 ' 8»',40O 93,700 93,300 90,800 93,400 103,200 L02.4OO 101,400 9*, 600 94,500 23 84,600 87,000 89,800 94,300 «3,100 90,600 93,50O 103,200 102,400 LO1.100 9-', 600 94,500 24 84,400 '87,200 90,300 96,900 93,000 90,300 93,700 103,200 102,400 100,700 94,600 94,500 25 84,400 87,300 91,6OO 97,400 92,700 90,200 93,900 103,200 108,300 100,500 9<',6OO 94,400 26 84,300 87,500 92,000' 9T,800 92,400 90,100 93,900 103,200 102,300 100,300 94 . 600 94,400 27 84,100 38,000 92,400 98,200 92,200 90,200 94,000 LOS, 200 102,300 LOO, 000 94.6OO 94,400 28 83,800 88,100 92,800 98,700 91,800 90,200 94,600 LOS, 100 102,200 99,700 94,500 94,200 29 83,600 88,200 93,000 99,000 _ 90,300 95,200 103,000 102,200 99,600 94,500 93,800 30 8S,500 88,400 93,400 99,500 _ 90,300 95,600 103,000 102,200 99,300 9'' ,500 '93,700 31 83,300 - 93,700 99,500 - 90,300 - 103,100 99,000 94,500 - Monthly elevation and contents, water year October 1942 to September 1943 Change In contents Elevation Contents Date during month (feet) (acre-feet) ( acre -f set) _ Sec. 31...... 5,150.4 93,700 +5,300 Calendar year 1942.. _ _ 0 99 OOO Sept. 30...... 5,150.4 93,700 -800 Water .year 1942-43.. - - +5,900 Time basis; Pacific war time. To convert war time to standard time. tract 308 FEATHER RIVER BASIN Grizzly Creek near Storrle, Calif. Location.- Water-stage recorder and concrete control, lat. 39°52', long. 121°14', In SWi sec. &, T. 23 JJ., R. 7 E., 2,000 feet upstream from outlet of tunnel from Bucks Creek and 6 miles southeast of Storrle. Altitude of gage, about 4,900 feet (from topographic map). Records available.- December 1929 to September 1932, October 1933 to'September 1943. Average discharge.- 12 years (1930-32, 1933-43), 29.1 second-Jeet. Extremes.- Maximum discharge during year, 2,000 second-feet Jan. 21 (gage height, 7.00 reet) from rating curve extended above 180 second-feet by logarithmic clottlne: minimum, 0.4 second-foot Sept. 23-25. 1929-32, 1933-43: Maximum discharge, that of Jan. 21, 1943; mlnimun gage height, 7.20 feet Dec. 10, 1937; minimum discharge, 0.1 second-foot Sept. 7-14, 1932. Remarks.- Records good. No diversion or regulation above station. Cooperation.- Water-stage recorder graph and one discharge measurement, frrnished by Pacific Gas & Electric Co., obtained In connection with a Federal Power Commission project. Rating table, water year 1948-43 (gage height. In feet, and dlacha'-ge. In second-feet) 8.8 0.4 3.8 34 4.8 170 5.8 566 2.4 8.0 3.4 51 4.4 824 5.4 686 e.6 5.5 3.6 70 4.6 290 5.6 316 2.8 18 3,8 96 4.8 366 5.S 950 . 3.0 21 4.0 187 5.0 458 Discharge, in second-feat, water year October 1948 to Septenber l*>43 Day Oct. Nov. Dec.' Jan. Feb. Mar. Apr. May June Juij- Aug. Sept. 1 0.7 0.8 28 46 30 28 68 99 104 4.4 1.8 0.6 2 .7 .9 72 40 88 27 70 93 56 4,6 1.5 .6 3 .7 . 6 35 51 27 27 71 95 39 4.6 1.6 .6 4 .7 S.Z SS 28 28 48 74 97 33 4.6 1.6 ,6 5 .7 1.6 16 24 29 90 185 85 35 4.8 1.8 .6 6 .7 1.3 21 21 27 145 < 92 81 25 4.0 8.0 .6 7 .7 1.3 24 19 29 124 69 68 80 3.6 2.0 .6 8 .7 2.0 12 18 27 290 180 68 17 3.4 2.0 .6 9 .7 1.9 11 16 25 334 75 66 15 3.3 1.9 .6 10 .7 1.4 11 15 SS 204 65 58 IS 3.1 1.9 .6 11 2.0 1.3 10 14 23 113 66 65 IS 30 1,9 .6 12 1.4 1.2 10 13 22 86 80 47 is 8.9 1.9 .6 IS 1.0 1.2 9.5 12 22 83 100 43 11 2,6 1.9 .6 14 1.0 5.5 10 12 23 96 118 39 10 8.5 1.9 .6 15 .9 21 10 12 23 69 137 36 8.6 2.S 1.8 .6 16 .8 ' 4.2 10 12 24 57 185 32 7.5 2.3 1.9 .6 17 .8 60 10 9.5 24 51 109 31 7 8.8 1.8 18 .8 152 9 S 26 4$ 97 33 6 2,0 1.8 :S 19 .6 28 8.5 8.5 25 40 104 36 6 8.0 1.8 .6 20 .7 15 6.5 10 26 39 81 38 6 8.0 1.6 .5 21 .7 10 8.5 854 30 37 117 40 6.5 8.0 1.6 .6 22 6.5 8 145 64 36 1O6 47 e 8.0 1.6 .5 23 10 115 106 56 37 102 48 6 1.8 1.6 .4 24 32 192 74 46 40 97 40 5;5 1,8 1.5 .4 25 26 62 . 54 37 44 81 35 " 6.8 1.6 l.S .4 26 80 38 46 39 77 66 30 5 1.5 1.0 .5 27 59 67 43 SO ,86 118 * 86 5 1.4 .8 .6 28 .7 87 254 98 88 >e 816 22 4.7 1.3 .8 , .5 29 .8 36 83 36 106. 109 80 4.6 1,3 ,7 .5 30 .8 41 59 34 76 80 88 4.4 1.8 .6 .5 31 .8 55 SS «e 68 1.2 .6 Second- Runoff in Month f cot-days Maximal Mini»u» r Octo bar 25. 2 2.0 0.7 0.81 60 Hove ber ...... 508.4 IBS .8 16.6 1,170 Decs her...... 1,284.0 254 3 41.4 2,660 Ca lendar year 1942 ...... 13,78«.6 476 .7 37.8 37,380 Jami ary ' 1,831.0 854 8 $9.1 S.650 Febr U&jTY 853 64 88 29.8 1,050 Marc 2,672 334 27 86.8 6,300 Apri 8,956 813 62 98.6 5,860 May. 1,577 99 SO 60.9 3,130 June 496.2 104 4.4 16.6 984 July 80.8 4.S 1,8 8.61 160 Augu 47. e 2.0 .8 1.64 94 Sept,e»ber...... 16.6 .6 .4 .66 33 Wa ter yew 1948-43 ...... ~...... 18,407.8 ~ 864 .4 94.0 84,610 Peak discharge.- Hov. IS (5*30 a.m.) 300 sec. -ft.: Pee. 25 (11(30 p.m.) 4M see. -ft.: Dec. 88 FEATHER RIVER BASIN 309 West Branch Feather River near Yankee Hill, Calif. Location.- Water-stage recorder, lat. 39°42', long. 121 °34', in SWi sec. 5, T. SIN., R. 4 E., at highway bridge^ 1.4 miles downstream from Concow Creek and 2 miles west of Yankee Hill. Altitude of gage, about 1,100 feet {from topographic map). Drainage area.- 145 square miles. Hecaros available.- September 1930 to September 1943. ).- 13 years, 362 second-feet. iprcremss.- discharge during year, 11,300 second-feet Jan. 21 (gage height, 20.5 reet}; mlBimum, 6.5 second-feet Aug. 31, Sept. 1. 1930-43; Maximum discharge, 21,400 second-feet Dec. 11, 1937 (gage height, 30.3 feet), from rating curve extended above 15,000 second-feet; minimum, 0.3 second-foot Jan. 8, 1937 (gage height. 1.69 feet). Remarks.- Records good. Spring Valley ditch (see p.'311) diverts water from Concow Creek oeiow Lake Wllenor {capacity, 8,000 acre-feet) for power development and Irrigation. Dewey, Miners, and Hendricks Canals divert from headwaters of west Branch Feather River into Butte Creek Basin (see p. 304) for power development in De Sabla and Center- vllle plants of Pacific Gas & Electric Co. Round Valley Reservoir {capacity, 1,285 acre-feet) and Philbrook Reservoir (capacity, 4,S75 acre-feet) provide storage on headwaters for these three" canals. Rating tables, water year 1942-43 (gage height, In feet, and discharge, In second-feet) Oct. 1 to Jan. 21 Jan. 22 to Sept. 30 2.6 9.5 4.5 19S S.O 1,280 2.5 3.6 82 7.0 930 3.0 20 5.0 294 9.'0 1,770 2.6 '4.0 131 e.o 1,355 3.2 35 5.5 410 10.0 2,350 2.7 4.5 208 P.O 1,330 3.5 61 6.0 548 12.0 3,740 2.S 5.0 312 1C.O 2,390 3.7 82 6.5 710 14.0 5,340 3.0 5.5 434 ir,o 3,740 4.0 11S 7.0 888 16.5 7,550 3.3 6.0 576 14.0 5,340 Discharge, in second-feat, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. liar. Apr. May June July Alg. Sept. 1 11 14 160 439 1,160 505 747 754 1,010 44 8 6.5 2 10 13 222 393 910 480 744 754 612 42 8 7 3 8.5 52 207 298 750 466 750 688 4ie 40 8 7 4 8 55 141 256 726 531 740 691 403 39 e 7.5 5 7.5 32 98 220 674 874 1,210 612 395 34 8 7 6 8.5 29 128 194 588 1.530 986 591 351 32 S 7.5 7 8.5 21 126 172 803 1,650 902 510 262 2S 7.5 7.5 8 10 19 88 155 796 3,260 1,200 477 234 25 7.5 8 9 10 22 74 191 644 4,330 926 442 212 23 7 8 10 10 24 78 129 561 2,870 800 450 175 22 7 8.5 11 13 22 69 119 508 2,080 716 424 175 21 7 8.5 12 19 IS 61 112 468 1,580 730 336 ISO 18 7.5 8 13 20 17 56 101 455 1,380 778 312 ISO 17 8 8 14 19 20 58 100 450 1,940 854 299 164 14 8 8 IS 19 130 58 106 444 1,580 878 279 135 13 8 8 \ 16 18 105 61 99 442 1,270 906 252 128 13 8.5 8 17 13 576 57 84 437 1,170 846 236 118 12 e.s 8.5 18 11 787 51 67 447 1,040 786 246 110 12 8 8.5 19 10 303 46 69 431 906 747 264 102 11 7 9.5 20 9 150 45 303 442 772 684 268 96 12 7 9.5 21 9.5 05 51 7,320 477 740 744 275 92 11 7 8.5 11 71 53 3,540 970 754 667 290 104 13 7 5 8.5 23 12 63 710 5,140 1,030 694 660 365 92 12 8 8.5 24 13 74 1,220 2,390 870 648 591 346 82 11 8 10 25 13 141 1,040 1,810 772 635 546 303 78 17 8 11 26 13 97 446 2,120 688 768 540 312 75 9.5 8 10 27 13 253 386 1,780 600 850 619 266 65 9 7.5 10 28 14 227 1,580 1,260 534 782 1,610 246 58 8.5 7 9.5 15 178 1,020 2,050 1,080 1,050 220 54 8.5 7 9.5 30 15 203 597 4,140 986 800 214 49 S.5 7 0,5 31 15 530 1,740 792 510 8 6.5 Month foot-dayaSecond- *y.»<_,utiDlum» Minimum 110811u___ acre-fastRunoff in Octo her...... 386.5 20 7.5 12.5 767 Move mber...... 3,811 7S7 13 127 7,560 December...... 9, 517 1, 580 45 307 18,880 Calendar year 1942 197,743.5 10,400 5.5 542 392,200 janu ary 36,897 7,320 67 1*190 73,180 Pebr IS, 077 1, 160 431 646 35,860 Marc 38,943 4,330 466 1,256 77,240 Apr! 1...... 24,757 1,610 540 S25 49, 100 Hay. 12,232 754 214 395 24,260 June 6,209 1,010 49 207 12,320 July 588.0 44 8 19.0 1,170 Augu St...... 236.0 8.5 6.5 7.61 468 Sfcptember...... 254.0 11 6.5 8.47 504 Water year 1042-43 ...... 151,907.5 7,320 6.5 416 301,300 Peak discharKe.- Jan. 21 (1:30 p.m.) 11,300 sec. -ft.; Jan. 23 (6:30 a.m.) 6,800 sec. -ft. ; Jan. 30 (7 a.m. J 5,780 aec.- ft.; Mar. 9 (7 a.m.) 5,380 see. -ft.; Mar. 14 (3 p.m.) 2,560 aec.-ft. } Apr. 28 (6 a.m.) 2,260 sec.- ft. Tlme basis: Paclflo war time. To convert war tin* to standard time, subtract 1 hour. 310 FEATHER RIVER BASIN Concow Creek near Yankee Hill, Calif. Location.- Water-stage recorder, lat. 39°46', long. 121°32', In NEJ sec. 16, T. 22 N., R. 4 E., above^diversion dam for Spring Valley ditch, 300 feet downstream from Lake Wllenor Dam and 4 miles north of Yankee Hill post office. Altitude o' gage, about 1,850 feet (from topographic map). Drainage area.- 14.7 square miles. HBCoras available.- October 1927 to September 1943. Average dlscha-tleT- 16 years, 28.6 second-feet, combined flow of Concow Creek and Spring valiey aiLcnT Extremes.- Maximum discharge during year, 2,060 second-feet Jan. 21 (gag^ height, 5.35 TSeTTrom floodmark In well), from rating curve extended above 80 second-feet by com putations of flow over dam; no flow most of year. 1927-43: Maximum discharge, that of'Jan. 21, 1943; no flow for many months In each year. Remarks.- Records good. On Sept. 30, 1942, storage In Lake Wllenor (capacity, 8,000 afire-feet), was 6,400 acre-feet, and on Sept. 30, 1943, It was 5,420 acre-feet. Rec ords show flow passing diversion dam; for total flow out of reservoir, add 'that of Spring Valley ditch, which diverts water above station (see following page). Cooperation.- Water-stage recorder graph, furnished by Table Mountain and Thermallto irrigation Districts, obtained In connection with a Federal Power Comnlsslon project. Rating table, water year 1942-49 (gaga height. In feet, and discharge, In second-feet) 0,0 0 0.6 68 1.8 4S8 .1 1.0 .8 112 2.0 S36 .2 3,6 1.0 174 2.6 738 .3 9.6 1.2 240 3.0 948 .4 20 1.4 310 3.6 1,170 .5 36 1.6 382 4.0 1,400 Discharge, la second-feat, water year October 1942 to September 1143 Day Oct. NOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0 31 0.2 124 47 47 a!4 f, 0 31 .8 92 47 46 0 X 0 31 .2 71 47 46 0 4 0 31 .2 66 47 46 0 5 0 13 .2 61 47 61 0 i 6 0 0 S 66 74 56 0 7 0 0 .2 S4 136 47 0 8 0 0 .2 92 346 49 0 9 0 0 .2 74 481 51 0 10 0 0 .2 58 260 43 o 0 0 .2 61 161 40 0 i 0 0 fc.2 47 116 38 0 13 0 0 6.2 46 98 40 0 0 0 .8 43 168 43 0 15 0 .1 .3 43 139 43 0 16 0 .5 .3 43 104 43 0 17 0 .2 .4 43 96 43 0 18 0 .2 .6 43 84 43 0 19 0 ,2 1.2 43 66 15 0 20 0 .2 66 43 68 .6 0 21 le .2 1,260 43 61 .6 0 22 51 .2 372 43 54 .6 0 23 31 .2 664 46 47 .6 24 31 .2 886 46 43 2.0 0 25 51 .2 833 46 43 e2.6 0 26 SI .2 546 47 43 a2. 6 0 27 51 .2 200 47 43 e25 0 StB 31 .2 162 47 46 al!6 0 29 31 .2 341 51 a60 0 30 31 .2 811 - 68 e45 0 31 ~ .2 887 - SI "" 0 Seoond- Runoff in Month foot-days Maxima MiniMW v«*a. ao^e-feet 0 0 0 0 0 297 31 0 9.90 589 Deoeober...... 140.6 31 0 4.54 279 Calendar year 1942 ...... 12,620.5 1,180 0 34.6 25, OK) Jahu 4,968.6 1,260 .2 160 9,820 Febr 1,584 124 43 66.6 3,140 Ma.roh...... 3,139 481 43 101 6,230 1,081.6 116 .6 36.1 2,150 May...... 14 14 0 .45 28 0 0 0 0 0 July...... 0 0 0 0 0 Augu 0 0 0 0 Septeaber...... ,...... :..... 0 0 0 0 0 Hater year 1942-43 ...... 11,908.8 1,260 0 1 50.7 2£,240 a No gage-height record) discharge conputed on baala of recorded range In atcge and obaerror's notes ' Tfoe baala; Paelflo war tl»e. To convert »ar tine to standard time, subtract 1 hour. FEATHER RIVER BASIN 311 Spring Valley ditch near Yankee Hill, Calif. Location.- Water-stage recorder, lat. 39°46% long. 121 °32', In NEi sec. 16, T. 22 N., R. 4"E., Just dowustreaa from diversion dam and 4 miles north of Yankee Hill post office. Altitude of gage, about 1,840 feet (fran topographic map),, Records available.- October 1927 to September 1943. Average discharge,.- 16 years, 10.4 second-feet. Extremes.- Maximum dally discharge during year, 35 second-feet my 2; minimum dally, 0.1 secotift-foot at tines February to April. 1027-43: Maximum dally discharge, 49 second-feet Oct. 25-27, 1928; no flow at tines during most years. Remarks.- Records good. Ditch diverts from left bank of Concow Creek 300 feet downstream TFBITLake Wllenor; water used for power development In Lime Saddle and Cor.1 Canyon plants of Pacific Gas & Electric Co. and for Irrigation In Table Mountain and Thermal- ito irrigation districts. Cooperation.- Water-stage recorder graph, furnished by Table Mountain and Thermallto Irrigation Districts, obtained In connection with a Federal Power Commission project. Discharge, in second-feet, water year October 1948 to September 1943 Daj Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 30 31 0.5 0.3 0.2 0.1 0.1 25 10 4.0 12 24 2 30 31 .3 .3 .2 .1 36 14 .8 12 25 3 30 31 .3 .3 .2 :J .1 19 23 .8 12 86 4 32 31 .3 .2 .1 .1 .1 5-5 16 .8 12 96 S 39 31 .3 .2 .1 .1 ,1 4.1 12 .6 12 26 fi 33 31 .S .2 .1 .1 .1 4.8 9 ,4 13 26 7 33 31 .3 .2 .2 .1 .1 .8 8 .3 14 26 ft 33 31 .3 .3 .2 .2 .1 .6 8.5 3.0 14 26 9 32 31 .S .5 .2 .6 .1 .6 9 3.7 14 26 10 33 31 .2 .2 .1 .3 .1 .6 9 3,4 14 26 33 31 .2 .2 .1 .2 .1 .6 9 3.3 15 23 1? 32 31 .2 .2 .1 .1 .1 .7 9 2.9 16 21 13 32 31 .2 .2 .1 .1 .1 .9 9 2.6 12 21 14 32 31 .2 .2 .1 .1 .1 1.0 9 2.2 13 23 15 32 31 .2 .2 .1 .1 .1 1.1 9 e.i 13 26 32 31 .2 .3 .1 .1 .1 1.1 8 2.1 13 28 17 32 31 .2 .3 .1 .1 .1 1.1 7 2.1 13 32 18 32 31 .2 .3 .1 .1 .1 .8 6.5 2.1 13 34 32 31 .2 .3 .1 .1 .1 .7 6 2.1 16 34 20 32 31 .2 .4 .1 .1 .1 .8 5.5 2.1 18 32 21 32 13 .2 1.0 .1 .1 .1 .8 6 ,2.0 19 30 .4 .2 .4 .1 .1 .1 .6 6 2.0 19 32 .4 .4 .1 .1 .1 .6 5.5 2,0 10 34 24 .3 .3 .1 .1 .1 .5 5.5 8.5 19 34 32 .3 .3 .2 .1 .1 .1 .6 5.6 11 IS 31 28 32 .3 .3 ,3 .1 .1 .1 .6 6.5 8 16 28 27 .5 .3 .1 .1 .1 .7 6 7.6 15 26 28 32 .3 .3 .2 .1 .1 .2 .8 6 7.6 16 SB 29 .3 .5 . .1 .2 .9 6 8.5 19 29 30 .3 .3 1.2 - .1 .2 1.0 4.9 9.6 22 29 31 .3 .4 - .1 1.9 - 11 22 Seoond- Runoff in Month foot-days MaximuB Minimal MftAB acre-feet 1»970 636.8 31 .3 21.2 1,260 December ...... e.i .4 .2 .2-< 16 Calendar year 1942 ...... 4,723.6 36 .2 12.9 9,380 10.3 1.2 .2 ,31 20 3.4 .2 .1 .13 6.7 3.9 .0 .1 .13 7.7 3.3 .2 .1 .11 6.5 *V...... 113.6 36 .6 3.6-5 226 June 261.4 BS 4.9 8.33 499 144.6 11 2.0 4.61 287 474 22 12 16.3 940 September...... 830 34 21 27.7 1,660 Water year 1942-43 ...... 3,469.4 36 .1 9.51 6,890 Time baala; Pacific convert w»i> tl» tc standard tine, subtract 1 hour. 312 FEATHER RIVER BASIN Middle Fork Feather River near Clio, Calif. Location.- Water-stage recorder, lat. 39°45', long. 120°36', In Ei sec. 23, T. 22 N., R. lii E., 0.3 mile upstream from Frazier Creek and 1.5 miles northwest of Clio. Altitude of gage, about 4,350 feet (from topographic map). Drainage area.- 699 square miles. Kecoras avaiJiaple.- October 1925 to September 1943. Average aiscnarge.- 18 years, 263 second-feet, fcaaremes.- noximum discharge during year, 9,870 second-feet Jan. 23 (gage height, 13.03 reet;;, from rating curve extended above 5,100 second-feet: minimum, 19 second-feet Aug. 29, 30. 1925-43: Maximum discharge, 11,000 second-feet Mar. 26, 1928 (gage height, 12.0 feet), from rating curve extended above 7,000 second-feet; minimum, 4.3 second-feet Sept. 5, 1934. Remarks.- Records good. Many small diversions above station for Irrigation. Rating tables, water year 1948-43 (gage height, In feet, and discharge, In second-feet) Oct. 1 to Jan. 22 Jan. 23 to Sept. 30 2.4 24 3.4 170 6.0 1,110 2.2 20 3.2 147 6.6 906 2.6 32 3.6 216 7.1 1.740 2.4 31 3.6 211 6.3 1,280 2.6 41 3.0 294 8.0 8.430 8.6 48 3.9 310 7.1 1,740 2.7 61 4.2 382 9.0 3,620 2.7 60 4.4 470 2.8 63 4.5 478 10.0 4,830 2.9 92 4.9 666 3.0 6-0 666 11.0 6,360 Vote.- Same aa preceding table above 12.2 8,380 7.1' feet. Discharge, in second-feet, water year October 1942 to Septamber 1943 Day Oct. Nov. Oeo. Jan. Feb. Mar. Apr. May June Jily Aug. Sept. 1 26 34 337 1,120 1,010 986 1,680 691 189 69 27 20 2 25 34 291 821 982 87S 1,610 669 174 68 26 21 3 26 88 240 568 941 en 1,600 623 193 56 26 81 4 86 66 197 466, 860 838 1,340 687 182 66 26 22 5 26 48 170 40d 811 896 1,430 544 196 55 25 28 6 26 48 155 366 796 1,060 1,270 401 196 54 26 81 T 26 47 144 288 990 1,140 1,370 452 178 66 26 28 8 26 60 129 872 1,000 1,290 1,430 394 174 49 86 82 9 27 61 118 263 986 1,810 1,220 352 176 58 24 23 10 27 68 121 240 It 010 3,560 1,140 328 176 43 84 23 11 30 52 181 818 882 6. 160 1,070 310 171 56 24 84 12 30 6g 125 804 791 4,900 1,080 892 165 64 84 82 13 31 68 140 19% 791 3,010 946 876 167 66 22 83 14 32 67 146 19B 839 2,340 914 362 182 68 SS 88 IS 33 141 148 164 84B 1,920 887 836 167 68 88 23 *£ 33 96 146 192 set 1,780 687 216 i8s SO 22 84 IT «S' 686 140 ids 910 1,550 860 804 106 46 28 84 18 sS 746 133 186 938 1,390 833 800 99 44 28 84 19 S3 368 127 118 964 1,310 811 176 97 44 22 24 30 33 379 126 088 1,020 1,280 807 149 95 46 82 24 SI 33 697 119 4,660 1,060 1,110 796 169 89 58 gff 23 28 33 580 118 7,800 1,160 1,050 783 182 78 46 88 SBCOIKJ- Runoff in . Month foct-days Maximal Uintatuo Mean acre-feet October...... 946 34 26 30. B 1,080 November...... 6,891 746 34 030 18,670 Deoettteer...... 16,537 3,070 lie &53 38,800 Calendar year 1942 ...... 168,625 4,460 24 46S 334,600 tlojKtary - 47,194 8,890 118 1,588 . 93,610 87,814 1,200 791 976 64,160 *aret»...... 51,586 6,160 811 1,688 101,900 April ...... 30,13% 1,810 696 1,004 89,770 By...... 9,380 601 149 303 16,600 Jttw...... 3,858 196 66 128 7,640 Jti^f...... 1,437 e» 87 46.4 8,880 tatm...... : '...... 711 27 * *° 88.9 1,*^0 Segteaber...... 689 24 * S* 2S.9 1,360 Water year 1948-43 ...... 196,467 8,290 80 538 388,700 Peak discharge.- Dee. 28 (11:30 a.n.) 4.890 Mc.-ffc.! Jan. 21 (6 p.M.) 8,980 f*o.-ft.; Jan. 23 6,390 oee.-ft. war tine to standard time, «uovr««t 1 boar. FEMBEB RIVER B6SIH 313 Middle Fork Feather Rlvar below Sloat* Calif:.. Location.- Watar-stage recorder, lat« 39°52', long. 12O°46', half a mile west, of. Bells Bar7~T| miles downstream from Rattlesnake Creek, and 1$ miles west o£ SIsat. Alti tude of gage* about 4,050 feet (from topographic map). Drainage area.- 835 square miles. Records available.-avaijgble.- BecemfteruecemBer 1940 to September 1943. Records publisJied for November ISJLCJ to February 1928 for Middle Fork Feather River at gloat (at site 2,0 miles upstream) are not comparable. Extremes.- Maximum discharge during year, 12.,400 second feet. Jan, 21 (gage fa£lght, 12.65 rest), from rating ourro extended, above 9,000 second feetr minimum,. 61 second-feet Sept. 23,. 24. 1940-43: Maximum, discharge, that of Jan. 21, 1943;, minima,: that crff arpt. 23, 24, 1943. Maximum stage known,, 13.2 feet from floodmarks, probably In February 1£40 (dis charge, 13»300 second-feet, from rating curve extended above 9>OGO sec«I-\flse.t5. Remarks.- Records good. Flow regulated by diversions above station for Irrigation, and to a small extent by mill poad at Sloat. Rating table, water year 1942-43 (gage height. In feet, and discharge, IB second-feet) 0.9 60 2.0 ISO 5.0 » 1.0 67 2.5 244 6.0 2,700 1.1 75 2.6 326 7.0 3,840 1.3 92 3.0 46S 9.0 6,470 1.5 111 3.5 715 11.0 l.T 136 4.0 1,020 Discharge, in seccnd-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 81 87 524 1,640 1,650 1,480 2,120 1,420 974 178 85 65 2 81 87 546 1,300 1,580 1,390 2,200 1,420 836 leo S4 64 3 81 179 496 1,010 1,490 1,320 2,160 1,350 682 175 S5 63 4 81 133 408 836 1,420 1,370 2,000 1,350 600 167 83 63 5 80 110 347 742 1,360 1,470 2,160 1,260 560 164 81 64 6 80 104 320 660 1,320 1,710 1,960 1,180 519 161 81 64 7 80 103 311 585 1,620 1,800 2,020 1,100 474 158 81 63 ft 80 108 288 524 1,650 2,080 2,110 968 457 153 81 34 9 80 110 270 501 1,520 3,030 1,840 878 453 153 80 a64 10 80 109 265 474 1,620 4,750 1,690 848 441 135 78 a64 11 86 110 260 437 1,400 6,500 1,590 818 433 147 77 a65 12 88 109 267 437 1,290 5,870 1,640 770 422 146 77 64 13 87 108 262 394 1,290 4,020 1,510 726 397 143 76 a64 14 87 116 270 383 1,340 3,300 1,650 682 394 144 73 64 15 88 297 267 383 1,360 2,710 1*610 638 376 146 73 a63 16 S6 193 262 373 1,400 2,370 1,670 595 335 135 73 63 17 85 795 254 344 1,440 2,160 1,630 555 305 127 72 64 Ift 86 1.630 244 323 1,470 1,960 1,550 537 293 126 71 64 19 85 726 237 320 1,480 1,810 1,520 524 286 121 72 66 20 85 514 237 370 1,550 1,720 1,470 488 273 121 72 64 21 84 764 230 7,090 1,600 1,600 1.490 519 260 133 69 64 22 83 704 222 S.560 1,760 1,530 1,530 570 242 122 69 63 23 84 546 5SO 9,550 1,750 1,480 1,560 649 222 113 70 61 24 85 570 1,520 6,700 1,740 1,450 1,550 671 211 109 69 61 25 87 570 1,100 5,590 1,660 1,450 1,420 660 205 108 69 62 2fi 85 441 1,170 4,490 1,630 1,530 1,240 649 196 101 69 64 27 85 676 1,250 3,250 1,670 1,700 1,200 644 194 98 68 64 28 86 560 4,900 2,440 1,620 1,750 1,750 605 189 96 67 - 66 86 461 3,150 2,170 _ 2,130 1,470 550 1S4 94 66 66 .10 S6 501 3,100 2,140 _ 2,140 1,350 524 , 177 92 66 66 31 86 - 2,290 1,910 - 2,050 - 600 - 89 65 , Seoond- Runoff in Month fcct-days Maximum Minimum Mean acre-feet 8,604 88 80 84.0 5,160 11,521 1,630 87 384 22,850 December...... 28,837 4,900 222 833 51,250 Calendar year 1942 ...... 294,960 6,730 79 808 585,100 January 65,926 9,550 320 2,127 130,800 42,560 1,760 1,290 1*520 S4,420 71,630 6,500 1,320 2,311 142,100 50,460 2,200 1,200 1,682 100, 100 May 24,748 1,420 488 798 49,090 11,590 974 177 386 22,990 4,135 180 1 89 133 8,200 2,302 85 65 74.3 4,570 Septenber...... 1,916 66 61 63.9 3,800 Water year 1942-43 ...... 315,229 9,550 61 864 625,300 Peak discharge. - Dec. 28. (1 p.m.) 7,520 sec. -ft.; Jan. 21 (8 p.m. ) 12, 400 sec. -ft.; tfir. 11 (4 p.m. 6,770 sec.-rt a He gage-height record; discharge computed on basis of recorded range in stage and records for station near Olio. Time basis; Pacific war tine. To convert war time to standard tine, subtract 1 hour. 314 FEATHER RIVER BASIN Middle Fork Feather River at Bldwell Bar, Calif. Location.- Water-stage recorder, lat. 39°33», long. 121°26', In NWi sec. 32, T. 20 N., JU 5E., at highway bridge at Bldwell Bar, 2 miles upstream from confluence with North Fork and 7 miles northeast of Orovllle. Altitude of gage, about 290 feet (from topo graphic map}. Drainage area.- 1,353 square miles. Records availably- October 1911 to September 1843. Average discharge^.- 32 years, 1,831 second-feet. Extremes.r Maximum discharge during year, 54,300 second-feet Jan. 21 (gr 2.6 280 4.8 915 7.0 3,420 2.3 284 4.5 1,200 9.0 6,550 2.3 SIS 4.6 1,170 8.0 4,710 2.5 272 5,0 1,580 10.0 8,500 3.O 376 S.O 1,450 9.0 6,200 2.7 326 5.5 2,010 12.0 14,000 3.S 485 S.S 1,860 11.0 10,600 3.0 420 6.0 2,520 13.0 17,800 9.6 61S 6.O 2,330 13.0 17,800 3.5 625 7.0 3,720 1S.O 27,200 3.9 760 2,860 1S.Q 27,200 4.0 880 S.O 5,1OO Discharge, in Moaad-fMt. «ater jwar October 1942 te September 1943 0*9 Dot. * ROT. Dec. J*B. Feb. Mar. Apr. *»/ JMM Ja'v Aug. Sept. 1 26S 278 1,430 4,540 6,110 3,690 5,800 4,590 3.5OO 720 353 2S5 2 262 278 1,680 3,780 5,260 3,450 5,900 4,650 3,270 720 350 253 3 260 477 1,710 3,050 4,660 5,340 6,930 4,320 2,380 705 344 250 4 266 S43 1,380 2,630 4,460 3,620 5,660 4,350 2,170 680 341 246 5 250 396 1,190 2,370 4,200 4,320 6,570 4,080 1,990 655 344 246 6 258 345 1,200 2,130 3,820 5,99O 6,220 3,820 1,840 640 341 241 7 256 327 1,170 1,930 4,410 6,590 6,030 3,690 1,700 620 338 238 8 256 336 1,050 1,750 4,790 9,340 6,650 3,260 1,580 602 332 241 9 253 369 1,020 1,670 4,210 14.300 5,910 2,990 1,530 584 326 246 10 256 345 993 1,590 3,860 16,600 6,310 2,860 1,470 580 323 243 11 282 333 957 1,490 3,680 15,500 4,900 2,760 1,430 548 315 241 12 330 327 921 1,420 3,390 13,400 4,760 2,610 1,440 544 309 241 13 306 327 904 1,340 3,290 10,500 4,790 2,490 1,380 535 306 258 14 294 345 904 1,300 3,270 10,600 5,010 2,340 1,300 527 298 263 15 897 780 910 1,280 3,300 8,760 5,300 2,250 1,270 519 295 236 16 291 820 898 1,240 3,330 7,500 5,500 2,140 1,190 515 290 231 17 280 2,480 882 1,190 3,390 6,930 5,360 1,990 1,120 511 288 231 18 272 5,440 865 1,060 3,420 6,190 5,070 1,880 1,050 491 285 231 19 278 2,640 825 1,040 3,890 6,600 4,690 1,840 1,030 479 282 229 20 272 1,440 830 1,490 3,510 5,220 4,730 1,790 1,000 463 282 229 21 272 1,840 840 27,200 3,720 4,940 4,670 1,760 976 487 282 229 22 270 1,3SO 860 23,900 4,630 4,760 4,800 1,780 970 471 280 226 23 268 1,170 2,540 85,300 5,120 4,440 4,800 1,900 916 462 280 222 24 268 1,130 6,420 16,500 4,880 4,300 4,840 1,960 880 438 280 290 25 272 1,470 6,300 18,000 4,590 4,240 4,560 1,980 ' 852 424 280 220 26 276 1,260 3,520 9,980 4,270 4,490 4,010 1,880 825 417 877 222 27 275 1,910 3,890 8,810 4,140 5,190 3,950 1,830 805 401 875 829 28 272 1,890 18,900 7,140 3,970 5,360 6,690 1,780 786 391 267 831 29 272 1,540 9,530 7,020 6,440 5,610 1,6«0 780 »78 265 231 30 275 1,490 6,620 11,300 6,750 4,740 1,630 740 T76 260 231 31 278 5,650 7,820 6,040 2,170 882 258 Second- Runoff iii Month foot-days Maxima KtniMXB Mean acre-fe«t Oototor. .... 8,483 330 253 874 16,830 Hove 33,006 5,440 278 1,100 65,470 Dec* her...... 79,069 12,900 885 2,651 156,800 Calender year 1942 ...... 1,036,816 27,600 263 8,841 2,088,000 January 195,070 27,200 1,040 6,295 386,900 Febru&rv 114,990 6,110 ,3,270 4,107 228,100 Marc 218,400 16,600 3,340 ' 7,045 435,200 Apr! 158,900 6,650 3,980 6,297 315,800 80,840 4,660 1,630 2,608 160,300 S& 42,149 3,900 ^40 1,405 83,600 July 16,214 780 362 623 32,160 AllRU 9,346 SS3 288 1 301 18,540 Septeaber...... 7,106 258 280 837 14,090 *tt«r yw 1942-43 ...... 963,572 27,200 280 8,840 1,911,000 Peak dlBohar«.- Deo. 24 (9 a.m.) 7,310 etc. -ft.; See. 28 X* p.m.) 18,600 »«e.-ft.| Jan. 21 (5 p.ra.f S4,OT wo. -ft.} Jan. 30 (10 a.m. ) 15,700 aeo.-ft.j H»r. 10 (8 a. a.) 17,700 »»o.-ft.; Bar. 89 {7 p.m.) 7,810 »*e.-ft. Tims bf aUj PaetfIc war tine. To eonvert war tine to standard tine, subtract 1 hour. FEATHER RIVER BA.SIN 315 South Fork Feather River at Enterprise, Calif. jUpcatlon.- Water-stage recorder, lat. 39°32', long. 121"21f , in SHi sec. 8, T. 19 N., R. ~8 E., 0.8 mile upetream from HcCabe Creek and 1 mile upstream from highway bridge at Enterprise. Altitude of gage, about 550 feet (from topographic map). Dralnatse area.- 134 square miles. Records available.- September 1930 to September 1943. October 1911 to September 1930 at site half a mile downstream. Average discharge.- 32 years, 309 second-feet. Extremes.- mxtmum discharge during year, 10,100 second-feet Jan. 21 (gage height, 16.80 feet): minimum, 3.6 second-feet Sept. 22-30. 1911-43: mxlmum discharge, 17,300 second-feet Dec. 10, 1937 (gage height, 20.4 feet), from rating curve extended above 5,000 second-feet on basis of veloclty-wea studlee: minimum, 0.2 second-foot Aug. 11, 1917. Remarks.- Records good except those above 5,000 second-feet and those for periods of no gage-height record, which are fair. Storage and diversions above station for tlon. See records for Palermo Canal at Enterprise (following page). Rating tables, trnter year 1948-43 (gage height, in feet, and discharge, In second-feet) Oct. 1 to Dec. 28 Dec. 29 to Sept. 30 1.9 18 3.1 92 5.5 560 1.5 3.7 8.6 4S 5.4 595 11.0 3,700 8.0 15 3.4 126 6.0 696 1.6 4.4 3.0 83 6.0 780 12.0 4,700 8.1 18 3.8 182 7.0 1,070 1.7 5.5 3.4 130 7.0 1,150 13.0 6,800 8.2 &2 4.8 854 8.0 1,550 l.S 7.5 3.8 196 8.0 1,600 2.5 40 4.6 340 9.0 8,150 8.0 13 4.8 87S 9.0 8,170 2.-6 63 5.0 436 2.3 29 4.8 486 10.0 8,860 Discharge, in second-feet, water year October 1948 to September 1943 Day Dot. Nov. Dec. Jan. Feb. Mar. Apr. May Jane July Aug. Sept. 1 13 16 209 762 1,850 607 685 727 640 66 17 5 2 13 16 885 715 1,020 574 860 709 526 64 16 4.7 3 18 57 292 610 882 5S3 860 661 367 68 16 4.7 4 14 48 227 636 846 619 832 656 309 SO 16 4.8 5 15 83 192 466 787 739 1 ,040 607 280 58 16 4.3 6 15 19 818 413 706 1,820 976 571 249 55 15 4.1 7 16 le 193 374 818 1,310 987 530 220 60 4.8 8 15 20 172 aSSO 804 1,720 1,050 483 200 46 g 4 t X 9 15 86 166 «280 709 2,560 930 447 187, 47 13 4l8 10 15 21 168 834 652 8,990 836 426 169 47 18 4.1 11 le 19 152 a234 616 8,860 762 408 164 44 18 4.0 12 84 18 146 834 686 1,710 736 395 * 160 48 9 4.3 13 20 18 139 824 562 1,480 730 372 158 40 7.5 4.0 14 19 20 141 214 550 1,770 748 352 145 40 7.5 4.0 15 19 70 141 207 545 1,490 794 333 136 40 7 3.9 16 17 75 1JJB 196 548 1,260 832 307 187 39 6.5 3,8 17 16 412 136 185 536 1,160 801 860 116 39 7 3.8 18 16 860 132 164 533 1,080 766 205 109 38 6.5 3.7 19 16 313 187 165 528 916 742 192 104 37 6.5 3.7 20 16 153 131 316 530 840 718 187 100 37 6.5 3.7 21 16 118 alSS 5,690 550 808 730 182 97 34 6.5 3.7 22 16 92 a!35 3,560 798 801 718 176 99 89 6 3.6 23 16 83 a400 4,310 910 724 703 180 93 30 6.5 3.6 24 16 98 al.100 8,380 840 700 700 183 87 31 7 3.6 25 16 159 a900 1,740 798 688 673 182 83 86 7 3.6 26 16 149 a400 1,620 733 721 592 194 81 26 6.5 3.6 27 16 359 896 1,540 685 815- "1 616 185 78 25 6 3.6 28 16 314 2,240 1,280 640 836 200 174 75 84 5.5 3.6 29 16 248 1,650 1,390 1,090 892 160 71 22 5.5 3.6 30 16 238 1,050 2,790 1,080 773 169 68 22 5.5 3.6 31 16 920 1,720 944 345 81 5 Seoond- Runoff in Month f oot-days Maxittun Minimal Mean aors-feet Octo ber 499 24 12 16.1 990 Novel 4,062 860 16 135 8,060 Deoe; bar...... 12,719 2,840 127 410 86,830 Calendar year 1942 171,582 6,440 12 470 ff«0,300 Janu ary 34,879 5,690 164 1,125 69,180 Eebrt 19,944 1,250 522 712 39,560 Haro 36,005 2,990 553 1,161 71,410 Apri 1...... 24,416 1,2190 592 814 48,430 May. 10,960 727 160 354 81,740 June 5,306 649 68 177 10,520 July 1,242 66 21 40.1 2,460 Augu 289.0 17 5 9.3S 673 Sept ember...... 119.2 5 3.6 3.91 836 Hater year 1942-43 ...... 150,440.2 5,690 3.6 412 298,400 Peak discharge.- Dec. 28 (5 p.m.) 3,800 sec. -ft.) Jan. 81 (3.30 p.m.) 10,100 Me.-ft.f Jan. £3 (7 a.m.) 4,920 aec.- ft.; Jan. 30 (9:30 a.m.) 4,050 sec. -ft.; Mar. 10 (8i30 a.m.) 3,380 sec. -ft.; Apr. 88 (7.30 a.m.) 1,510 sec. -ft. a No gage-height record; discharge computed on basis of records for Kiddle Pork Feather Riv«r at .(Bldwell Bar. / Time baeiai Pacific war time. To convert war time to standard time, subtract 1 hour. 316 FEATHER HIVER BASIN Palermo canal a.t Enterprise, Calif. Location.- Water-stage recorder and Parshall flume, lat. 39°32', long. 121°21', .In SWi sec. 6, T. 19 N., R. 6 E.» 400 feet downstream from Intake at diversion dam. on South Fork Feather River, 1 mile upstream from McCabe Creek, and 1 mile southeast of Enter prise. Altitude of. gage, about 600 feet (from topographic map). Records available.- October 1911 to September 1943. Average discharge.- 32 years, 18.4 second-feet. Extremes..- Maximum dally discharge during year, 33 second-feet ffey 23, June 10, 11, 23, 24, July 22, Aug. 13j no flow Jan. 22 to Feb. 5. 1911-43: Maximum discharge recorded, 43 second-feet July 25, 19?7; no flow for periods In each year except 1939, 1941, 1942. Remarks.- Records excellent except those for periods' of no gage-height record, which are fair. Canal diverts from left bank of South Fork Feather River 1 mile above Enter prise. Water is used for irrigation near Orovllle. Cooperation.-apera' Gage-height record collected in cooperation with Oroville-Wyandotte Irrlga- tlon District. Discharge, in second-feet, water year October 1948 to September 1943 Day Oct. NOT. Deo. Jan. Feb. Mar. Apr. Hay Jane Jlly Aug. Sept. 1 27 22 18 14 0 5 4.5 16 29 31 31 31 2 26 21 ie 14 0 5 4.5 16 SO SO 31 31 3 26 25 18 14 o 5 4.5 16 SO SO 31 31 4 24 23 18 14 0 5 4.5 16 SO 29 31 31 5 22 22 18 14 o 5 4.5 16 31 29 31 30 6 22 22 18 14 1.5 5.5 4.5 16 32 30 31 SO 7 22 22 18 14 S 6 4.5 16 32 31 31 SO 8 22 22 18 14 5 6 4.5 15 32 SO 31 30 9 22 21 18 14 5 6 4.5 15 32 SO 30 30 10 22 21 18 14 5 6 4.5 15 33 29 SO 31 11 23 21 18 14 4.8 S 4.5 15 33 28 30 31 12 25 20 18 14 4.8 5 4.5 15 32 29 32 31 13 22 20 16 14 4.8 S 11 15 32 29 33 SO 14 22 20 14 14 4.6 S 16 15 32 29 32 SO 15 22 23 14 14 4.8 4.6 16 15 32 28 32 30 16 22 19 14 ' 14 4.8 4.6 16 15 31 28 32 30 17 22 18 14 14 4.8 4.6 16 15 31 28 SB E9 18 22 19 14 14 5 4.5 16 20 38 87 32 S9 19 22 18 14 '1414 5 4.5 16 27 32 87 32 89 20 22 I 18 14 5 4.S 16 zi 32 26 32 29 21 21 17 14 11 5 4.3 16 27 32 30 32 29 22 21 17 14 0 S 4.3 16 SO ' 32 33 31 29 23 21 17 14 0 5 4.3 16 33 33 31 32 28 24 21 17 14 0 5 4.3 16 32 S3 , 29 32 28 25 22 17 14 0 S 4.3 16 32 32 30 32 29 * 26 22 17 14 0 S 4.5 16 32 32 si 32 29 27 22 18 14 0 S 4.3 16 32 32 31 32 30 28 22 18 14 0 S 4.3 17 32 31 30 31 3O 29 21 18 14 0 4.5 16 32 31 SO 31 SO 30 21 18 14 0 _ 4.5 16 32- 31 30 31 29 31 21 - 14 0 - 4.5 - 30 - 30 31 Second- Runoff in Month foot-days Maximum Mtaimna Mean acre-feet October ...... '...... 694 27 21 22.4 1,380 November ...... 593. rtcCO 17 19.7 1,170 December ...... 484 18 14 , 16.6 960 Calendar year ,1942 ...... 5,655.1 33 .6 15.6 11,210 «Q Janu&rv, .-----...... - . . . . . 291 14 6 9 *OW (577 Pebr uary ...... 110.1 5 0 3.93 218 Hareh.. *:...... 149.9 6 4.: 4 84 297 April...... 338.0 17 4.{ 11."3 670 May...... 660 33 15 ' 21.9 1*350 Jane...... 949 S3 go 31.6 1* 880 en* O£ OQ C July..... f ...... vj.0 33 «o ctf*D 1,810 August ...... 974 33 so 31.4 1,930 September ...... 694 31 26 29.8 1,770 Wster year 1942-43 ...... 7,068.0 33 O 19.4 - 14,010 Kote.- Ho gage-height record Deo. 7 to Jan. 11, Jan. IS, 15-17, May 17-19, June ^.1-23; discharge interpolated or computed on basis of record of head gate changes and recorded range In stage. Time basis; Pacific «ar time. To convert «ar time to standard tine, subtract 1 hour. noffR>IB ooo o Q OtOOOO re-feetar a § 1 1 O>S ' i n * rt r- i 0 83 o oo H WO 1 1 IOCOOOO IO ' i 1 ooo o OO I 1 OOOOO GQ *4jO O O OOOOO OOOOO OOPQtO t^OQQO QQOOQ 9 1,0001.36#D.19.71.0.414S354 ' discharge.Inandfee*,1942-43(gageheight,Ratingtable,wateryear 1.28"H>5350.30.62770.90.0088 tcSeptember1943Discharge,infest,second-waterOctober1942year 0 ooooo ooooo ooooo ooooo gwioo>o> cooo> 'oo I ; ; i 1 ':-': i tn 8 . ti ti <3 g i *>V rtowrio ID i- 00 oo r-tNWVio (ot-ooga (HMrasra SScS« 0rt 1 i-l N {« llilii 1 318 FEATHER RIVER BASIN Middle Fork Yuba River above Oregon Creek, Calif. Location.- Water-etage recorder, lat. 39°23', long. 121"05', In afc sec. 28, T. 18 »., R. 8 E., 500 feet upstream from Oregon Creek and 2 miles northeast of North San Juan. Altitude of gage, about 1,450 feet (from topographic map). Drainage area.-170 square miles. Records available.- March 1941 to September 1943. July to October 19C1 and October 1910. to February 19"4"1 at site 1 mile below Oregon Creek (records not equivalent). Extremes.- Maximum discharge during year, 14,200 second-feet Jan. 21 (gage height, 12.83 reet), from rating curve extended above 6,000 second-feet by logarithmic plotting; minimum, 35 second-feet Sept. 23-26. 1941-43: Maximum discharge, that of Jan. 21, 1943; minimum, that of Sept. 23-26, 1943. Remarks.- Records good. Mllton-Bownan tunnel (see p,321), above station, has diverted water to Bowman Lake since 1928. Some small diversions above station. Rating tables, water year 1948-43 (gage height, in feet, and discharge in second-feet) Oct. 1 to Jan. 21 Jan. 22 to S-"ot. 30 2.0 36 3.5 320 6.0 1,600 2.0 33 3.3 264 2.2 ee 3.9 450 7.0 2,500 2.2 54 3.6 320 2.5 101 4.4 660 8.0 3,690 2.4 82 2.9 175 5.0 950 9.0 5,200 2.7 135 3.2 240 5.5 1,230 10.0 7,000 3.0 194 Hote.- Sane as preead- ing table abov-» 3.5 feet. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. MOV. Deo. Jan. Feb. Uar. Apr. *W Jane July AuK. Sept. 1 43 43 245 790 1,090 530 875 1,160 770 116 a60 42 42 42 375 696 910 5O2 896 1,290 750 116 59 41 3 40 126 -387 554 776 490 960 1,140 443 111 58 41 4 40 86 285 474 723 566 945 1,190 365 103 58 41 5 40 56 232 415 682 759 1,150 1,090 323 102 58 40 6 40 51 225 371 620 1,890 1,030 1,080 287 a98 57 40 7 40 48 213 335 718 1,540 1,060 1,030 262 a95 a56 39 8 40 48 193 305 728 1,580, 1,870 910 247 92 a55 39 9 39 51 189 280 633 3,510 1,090 815 238 90 a54 39 10 39 48 189 865 570 4,190 940 825 228 68 53 3d 11 46 46 183 250 542 2,780 830 820 281 87 62 39* 12 57 46 177 235 510 1,980 820 736 216 m 51 a39 13 48 45 173 222 506 1,650 865 490 209 80 61 a39 14 46 47 171 215 i 518 1,820 1,030 418 196 79 50 39 15 46 145 165 209 530 1,460 1,170 401 168 TO 48 38 16 46 122 159 203 530 1,220 1,280 380 178 78 48 se 17 43 942 151 197 526 1,130 1,210 366 170 74 47 37 18 43 2,150 144 185 514 1,010 1,150 350 168 72 46 37 19 43 669 136 187 490 900 1,080 347 162 68 46 37 20 42 296 136 325 510 820 995 344 168 67 46 37 68' 21 42 203 136 6,940 538 780 955 350 164 46 36 22 40 167 140 4,920 795 746 1,100 353 158 67 46 36 23 40 153 981 4,400 790 687 1,180 394 148 64 46 35 24 40 179 2,110 2,320 728 642 1,290 522 141 63 46 35 25 42 299 1,290 1,630 710 638 1,180 534 137 62 46 35. 26 42 203 795 1,460 669 660 930 522 133 64 ' 46 36 27 43 . 429 615 1,530 615 723 90S 478 129 ee 45 37 28 43 40B 2,500 1,240 570 785 a2,OOO 398 127 - 64- 44 3ft 29 42 311 1,950 1,240 _ 1,040 1,310 308 120 82 43 38 30 42 282 1,170 2,120 . 1,220 1,100 282 118 ' 68 43 37 31 43 - 965 1,500 - 990 - 380 - 60 43 - Seoond- Runoff la Month foot-days MaxfeM* BtBbMtt JtMB acre-feat 1 *C91 Daceuber...... 1*,780 2,500 ise 541 33,280 Calendar year 1942 ...... 196,674 5,190 Mt S99 39ffi,lOO "IftF Aftf 644 Hnro*> > 1 064 as1 88,715 8,000 82C 1,090 64,800 I QQn I KAry September...... 1,144 42 36 58.1 2,870 Water year 1942-43 ...... '.... 183,813 6,940 36 ?04 5S4,6QO .««,,- Jan. 21 (6130 p.m.) 14,200 sec.-ft.; Jan. S3 (4 a.m.) 5,740 nee.-ft.; Bar.. 10 (9 a.».} 4,880 eec.-ft. a Ho gage-height record; discharge interpolated on basic of recorded rangs in stage. Time tiaala; Pacific war time, to convert war time $o staoa«unS tin*, mbtrs-rt I hour. FEATHER RIVER BASIN 319 Tuba River at Narrows Dam, Calif. Location.- Water-stage recorder above spillway of Narrows Dam, lat. 39°14', loof. 121°16', hear center of sec. 14, T. 16N.,R. 6E., and wattmeters In powerhouse Just below dam, 1 mile upstream from Deer Creek, and 2i miles northeast of smartvllle. Datum of gage, 526.99 feet (revised) above mean sea level (levels by Corps of Englreers, U. S. Army). Drainage area.- 1,110 square miles. Records available.- October 1941 to September 1943. June 1903 to September 1941 (including now of Deer Creek) at site two miles downstream, published as Yuln River at Smartvllle. Extremes.- Maximum discharge during year, 81,100 second-feet Jan. 21, Including flow through powerhouse, from rating curve extended above 25,OOO'second-feet on baris of computations of flow over spillway by Craeger's method; minimum dally, 323 srtjond- feet (regulated) Aug. 14. 1941-43: Maximum discharge, that of Jan. 21, 1943; no flow Nov. 8 to Dec. 2, 1941, water being stored at dam. Remarks.- Records good October to June, fair thereafter. Diversions for power rnd Irrlga- tlon above station. Storage above station at Lake Spauldlng (capacity, 70,500 acre- feet), Upper Narrows reservoir (capacity, 70,000 acre-feet), Bowman Lake (see- p.329), .Fordyce Lake (capacity, 42,000 acre-feet), and many smaller reservoirs. Records given herein show total flow past Narrows Dam spillway and through and past power p^nt. Discharge, In second-feet, water year October 1948 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 388 374 1,700 4,960 8,290 3,700 6,240 6,420 10,100 1,030 637 413 2 388 360 1,720 4,360 6,760 3,510 6.050 7,580 9,540, 1,000 3P1 418 3 388 532 2,430 3,640 5,640 3,380 6,400 7,160 4,700 986 528 406 4 388 596 1,940 3,160 5,030 3,700 6.290 7,140 4,000 920 520 342 5 388 472 1,600 2,850 4,860 4,810 7,520 6,660 3,270 930 503 397 6 388 430 1,580 2,580 4,330 11,000 7,360 6,340 2,770 920 519 402 7 388 416 1,620 E,300 4,710 10, 000 6,860 5,900 2,640 890 9600 402 8 388 416 1,410 2,100 5,570 10, 100 3,200 5T 330 2,390 830 a&OO 402 9 388 416 1,300 2,000 4,760 22,800 7,280 4,870 2,330 767 e500 402 10 388 416 1,300 1,910 4,210 29,700 6,140 4,100 2,470 731 507 402 11 388 402 1,280 1,790 3,900 19,600 5,460 3,970 2,380 730 507 402 12 444 388 1,240 1,690 3,640 13,500 6,350 4,630 2,290 726 476 402 13 416 374 1,240 1,610 3,610 10,800 5,710 3,940 2,260 726 466 402 14 408 416 1,190 1,560 3,440 12,300 6,720 3,370 2,100 726 323 402 IS 402 S80 1,220 1,600 3,510 10, 500 7,520 2,940 1,970 726 466 412 16 402 768 1,160 1,490 3,510 8,740 8,320 2,760 1,790 726 466 560 17 402 2,530 1,190 1,440 3,510 7,960 3,260 2,610 1,650 722 468 664 18 402 9,740 1,130 1,320 3,440 7,320 7,680 2,570 1,610 729 410 664 19 388 5,500 1,080 1,2SO 3,350 6,370 7,210 2,580 1,600 729 410 557 20 388 2,430 1,080 1,870 3,410 5,760 6,790 2,680 1,550 731 fO 561 21 388 1,600 1,080 38,200 3,570 5,350 6,070 2,990 1,510 731 470 627 22 388 1,260 1,110 37,600 4,810 5,470 7,060 3,780 1,430 734 470 687 23 388 1,110 4,380 31,400 5,990 5,050 7,280 4,160 1,420 734 468 630 24 388 1,060 13,200 17,600 5,320 4,690 8,100 5T360 1,330 547 471 635 25 388 1,720 8,660 11,600 5,320 4,650 7,770 5,220 1,290 505 466 639 26 388 1,550 5,460 10,300 4,700 4,670 6,330 4,670 1,220 535 443 645 27 388 2,170 3,940 10,600 4,350 5,070 5,700 4,630 1,210 640 443 662 28 388 2,540 14,200 8,600 3,970 5,490 11,200 4,570 1,200 540 443 652 , 29 388 1,990 13,000 8,840 6,920 8,690 4,140 1,160 542 44« 662 30 388 1,790 7,430 18,200 _ 8,840 6,790 3,200 1,110 537 446 662 31 388 5,930 11,7*0 6,970 ~ 4,500 ~ 537 4,16 *" Seoond- Runoff In Month foot-days Maximum Minion* Mean acre-feet October. .. i ...... 12,182 444 568 393 24,160 November...... 44,346 9.740 360 1,478 37,960 December. 106 * 780 14,200 1,080 3,445 21T,800 Calendar year 1948 ...... 1,416,216 39,200 366 3,880 2,809,000 January 250,050 38, 200 1,280 8,066 496,000 February...... 127, 520 8,290 3,350 4,554 252,900 March...... 268,720 29, 700 3,380 8,668 533,000 April...... 212,330 11,200 5,350 7,078 421,200 ay...... 140, 610 7,530 2,570 4,536 278,900 June ...... 76,390 10,100 1,110 2,546 151,600 July...... 22,757 1,030 506 734 45,140 August ...... 14, 579 537 323 470 28,920 September...... 15,208 662 342 507 30,160 Hater year 1942-43 ...... 1,291,472 38,200 323 3,538 2,662,000 Peak discharge.- Jan. 21 (8 p, ,m.) 81,000 sec.-ft.; Jan. 23 <7:30 a.m.) 36,700 sec.-ft.j liar. 10 (8 a.m.) 34,70O sec.-ft. e Estimated. Time 'basts; Pacific war time. To convert war time to standard time, subtract 1 hour. 320 FEATHER RIVER BASIN Yuba River at Marysvllle, Calif, Location. Water-stage recorder, lat- 39°08'40fl , long. 121°34 t35n , at Slmpson Lane Bridge In HaryBvllle, Yuba County, about £ miles upstream from mouth. Sen of gage is datum of Corps at Engineers, U. 8. Army. Records available-- Oetdber 1940 to September 1943 (low-water periods only) in reports of Geological Survey, 1939-43 (lew-water periods only) in reports of CiYisioa of Water Resources, Desertmant ot Public Works, State of California. Extremes..- jflnfrmmn discharge recorded during year, 206 second-feet Sop*,. 14 (gage height, "1940-43-:" Minimum discharge recorded, 64 second-feet Bov. 28, 29. 1941. Remarks..- Records goofl except those Jor period of backwater from Feattnr Rlirer, which Sfe~*poor.. Storage and many diversions above station for power and Irrigation. C0( peratlon. Records collected and prepared in cooperation with Division of Water Resources, Department of Public Worfcs, State of California. Discharge, in second-feet* water year October IS42 to September 1945 Da, Oct. MOT. Dec. Jan. , Feb. Mar. Apr. "ay June July A«*. Sept. 1 gftft see 1 6,700 7«« 322 844 2 241 303 e7,500 74« 306 241 3 241 402 5,580 729 306 839 4 238 613 4,370 708 306 837 s- 258 511 9,640 642 303 234 s 258 430 2,980 642 300 232 7 241 425 ' _ 2,700 619 292 232 a 241 416 2,330 593 886 289 9 252 407 2,320 561 280 229 10 263 402 2,250 523 886 227 11 276 394 2,200 514 892 218 12 287 376 2,100 500 883 218 13 311 353 2,020 500 272 213 14 315 »7i 1,910 487 867 811 15 307 450 1,770 487 869 218 16 303 710 1,620 487 859 857 17 303 1,49.0 479 269 318 18 291 1,370 474 869 334 19 291 _ 1,360 479 859 366 20 287 - 1,320 474 259 365 21 287 _ 1,880 479 256 394 22 287 _ 1,230 474 266 408 23 287 _ 1,210 474 854 408 24 283 _ 1,150 426 264 408 26 291 - 1,060 361 251 417 26 295 _ 1,040 338 251 417 27 295 996 332 861 486 28 291 . 968 326 251 467 29 295 - 907 386 249 494 30 29S _ 86S 388 249 464 31 891 - - 318 846 " Seoond- Runoff in Month foot-days Kaxiw* MiaiMB Meaa aore-f««t October 8 «ovoAim 31S 858 278 17,070 November i-ie.v ...... 6?84& V10 SS9 488 ' 13*670 December...... Calendar year ...... " January ...... m February...... _ ,, m ^ Harch.^ ...... _ _ _ April.*...... _ _ _ _ May...... _ _ _ _ _ June ...... 68,263 7,600 862 2,875 " 135,400 July...... 16,596 796 316 SOS 30,930 August ...... 8,423 382 246 872 16,710 Septeaber...... 9,374 494 211 312 18,590 Rater year ...... - - < - - c Baelnater from Feather River; discharge estimated. Time baaIs! Pacific waf time. To eonvert war tt» to standard. tl»e, subtract 1 hour. FEATHER RIVER BASIN 321 Milton-Bowman tunnel at outlet, Calif. Location.- Water-stage recorder and concrete control, lat. 39°28'. long. 120°37', in sec. '6, T. 18 N., R. 12 E., near upper end of Bowman Lake. Altitude of gage, about 5,600 feet (from topographic map). Records available.- May 1928 to September 1930, October 1931 to September 1943. Average discharge.- 14 years (1928-30, 1931-43), 70.5 second-feet. Extremes.- Maximum daily discharge during year, 338 second-feet May 23; minimum dally, 1.5 second-feet Oct. 8, 9. 1928-30; 1931-43: Maximum daily discharge, 492 second-feet Feb. 11, 1941; mini mum daily, 1.3 second-feet Sept. 28, 29, 1937, and Sept. 24, 1939. Remarks.- Records fair. Tunnel diverts water frcm Middle Fork Yuba River at Milton, in sec. 12, T. 19 N., R. 12 E., and discharges it into Bowman Lake, from which it is conveyed to Lake Spaulding. During low and medium stages practically entire flow of Middle Fork Yuba River is diverted. Cooperation.- Water-stage recorder graph and several discharge measurements furnished by Nevada Irrigation District. Discharge, in second-feet, water year October 1942 tc September 1943 Day Oct. Nov. Dfc. Jan. Feb. Mar. Apr. May June July Aug. Sept. J i.e 4.7 75 119 114 76 139 155 333 57 10 4.2 2 i.e 4.7 89 US 109 a75 139 155 328 53 9.5 4.0 3 1.8 Y 109 112 102 a75 141 155 306 55 9 4.0 4 1.9 8.6 90 106 96 a80 141 153 258 50 66 4.0 5 2.9 7.5 70 114 94 a90 143 155 220 47 8 4.0 6 2.6 7 66 alOO 89 allO 141 158 206 43 8 4.2 7 1.6 6 46 a85 86 125 141 155 206 40 7.5 4.2 8 1.5 6 46 Y9 84 133 143 153 212 37 7.5 4.2 9 1.5 6.5 42 a75 81 143 139 153 216 34 7 4.4 10 22 6.5 39 a70 a80 146 139 153 209 . 32 7 4.4 11 51 6 38 a65 a78 141 137 151 206 30 7 4.2 12 IS 6 35 a60 a76 139 137 249 186 28 6.5 4.2 13 7 6 35 a60 a76 141 139 328 158 27 6 4.2 14 6 7 35 57 a76 139 141 32S 137 25 6 4.2 15 6 24 35 57 a75 137 146 315 133 24 5.5 4.0 16 5.5 ZZ 34 56 a75 135 146 302 135 14 S.5 3.7 17 5.5 33 34 50 a75 135 146 258 141 5.5 S.5 3.7 IB 5 116 33 44 a75 133 146 262 88 12 S.5 3.5 19 5 109 32 47 76 133 146 310 76 16 £ 3.5 20 5 80 32 47 81 129 143 320 90 18 S 3.5 4.7 55 30 114 66 127 146 320 69 23 e 3.5 2?. 4.7 42 32 153 a95 125 148 306 88 22 E 3.3 23 4.4 35 57 146 a90 121 151 338 85 19 E 3.3 4.4 42 126 143 a85 121 151 333 80 17 f -' 3.3 25 4.4 63 119 141 a85 129 148 320 74 15 S 3.3 26 4.4 54 118 139 a80 137 146 315 70 14 *.7 3.3 ?7 4.4 69 118 137 a80 139 151 324 65 IS A. 7 3.3 SW 4.4 81 127 139 a75 139 160 328 62 12 A. 4 3.1 29 4.4 . 75 125 137 - 141 153 328 61 11 4.2 4.Y 76 181 133 - 139 153 302 60 11 4.2 3.1 31 4.Y 121 185 - 137 - 284 - 11 4.2 "* Seccnd- Runoff in Month f cot-days Maximum Minimum Mean acre-feet 178.0 31 1.5 5.74 353 4.7 35.5 2,110 December...... 2,100 127 30 67.7 4,170 Calendar year 1940 ...... 31,640.4 350 1.5 86.7 62,750 3,028 153 44 97.7 6,010 2,374 114 75 84.8 4,710 arch...... 3.S70 146 75 125 7,680 April...... 4,340 160 137 145 8,610 7.S66 338 151 254 15,600 4,578 333 60 153 9,080 820,5 SS 5.5 26.5 1,630 190.9 10 4.2 6.16 379 September...... 112.9 4.4 3.1 3.76 224 Water year 1942-43 ...... 30,523.7 338 1.5 83.6 60,560 a No gage-height record; discharge computed on baala of recorded range in stage and records for Kiddle Fork Yuba River at Milton, Kiddle Fcrk Yuba River above Oregon Creek, and North For*k ¥uba River near Sierra City. Time basts; Pacific war tine. To convert war time to standard time, subtract 1 hour. 322 FEATHER RIVER BASIN Oregon Creek near North San Juan, Calif. Location.- Water-stage recorder, lat. 39°24'. long. 12l°05', In SWi sec. 22, T. 18 N., R. b i!., 1 mile upstream from mouth and 3 miles northeast of North San Jan. Altitude of gage, about 1,500 feet (from topographic map). Drainage area.- 35.1 square miles. Records available.- October 1933 to September 1943. October 1910 to September.1933 at site 0.7 mile downstream. Average discharge.- 32 years (1911-43), 76.3 second-feet. Extremes.- Maximum discharge during year, 2,910 second-feet Jan. 21 (gag3 height, 9.4 feet); minimum, 3.2 second-feet Sept. 14, 23 (gage height, 1.60 feet). 1910-43: Maximum discharge observed, about 4,000 second-feet Mar. 25, 1928 (gage height, 9.5 feet, site and datum then in use), from rating curve extended above 600 second-feet; minimum, 0.7 second-foot several days In July, August 1931, September 1934. Remarks.- Records good. Small diversions above station for irrigation a-rd mining. Rating table, water year 1942-43 (gage height, in feet, and discharge, in aecond-feet) 1.6 3.2 2.4 32 4.0 185 6.5 960 1.7 5.5 2.6 41 4.4 254 7.0 1,220 1.8 6.5 2.8 52 4.8 342 7.5 1,520 1.9 12 3.0 67 5.2 449 7.9 1,780 2.0 16 3.3' 94 5.6 5SO 2.2 24 3.6 128 6.0 730 Discharge, in second- feet, water year October 1942 to September 1943 Daj Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June Julv Aug. Sept. 1 4.8 5.5 46 201 432 156 176 109 144 19 8.5 5.5 2 4.6 5.5 65 182 328 144 162 98 148 20 8.5 5 3 5 28 61 149 266 137 155 90 90 18 8 5 4 5 14 53 129 246 167 151 84 74 17 8 5 5 5 1 45 114 224 245 173 77 65 17 8 5.5 6 5 7.5 50 98 199 802 161 72 58 ie e 5.5 7 4.6 7.5 48 86 239 629 151 67 52 16 8 4.S 8 5 e 43 78 250 660 204 62 48 IS 7.5 5 9 5 8 , 42 71 215 1,300 187 58 44 If 7 5 10 5 7-5 42 65 188 1,240 166 56 42 14 6-5 5 XX 8 7.5' 42 59 170 838 148 53 ' 41 If 7 4.6 12 10 7 40 55 156 594 134 SO 40 ie 7 5 13 7.5 6.5 40 51 148 452 127 48 38 if 7 5.5 14 7 8 42 48 142 601 122 46 36 if 6.5 3.7 IS 7 30 41 46 141 479 117 45 35 if 6.5 3.7 16 6.5 24 38 44 141 383 114 44 32 if 5.5 3.9 17 6 405 36 42 136 344 107 42 31 if 5.5 4.1 16 6 584 .34 38 132 296 101 41 28 if 5.5 3.9 io9 6 155 32 38 127 254 9S 40 27 if 6 4.1 6 75 33 112 126 226 , 91 38 26 if 6 4.4 21 5.5 50 32 1,760 127 215 90 37 24 i? 6 4.1 22 5.5 40 38 1.300 206 206 84 36 24 if . 6 3.7 23 5.5 34 464 1,720 244 184 SO 34 23 11 5.5 3.7 24 5.5 32 710 880 222 164 77 33 23 5.5 3.7 26 6 33 473 5SO 217 154 73 32 22 11 6 3.9 26 6 31 262 590 206 148 69 50 22 10 6 4.1 27 6 87 193 594 1S4 144 82 31 21 1C 6 4.4 28 6 74 732 495 168 142 214 30 20 P. 5 6 4.4 29 6 61 576 536 182 138 29 20 9 6 4.6 30 6 53 337 1,070 203 122 33 20 a.5 5.5 4.4 31 6 248 636 190 65 8.5 5.5 Second- Runoff in Month foct-days Maximu. Miaimum *ean acre-feet Octo b«r...... 183.4 10 4.8 5.92 364 NOT* mber 1,897.5 584 5.5 63.2 3,760 Deceaber...... 4,937 732 32 159 9,790 Calendar year 1942 46,425.7 1,770 4,8 127 92,070 Janu ary 11,867 1,7«0 38 383 23,540 Febr 5,580 432 126 199 11,070 Hare 11,879 1J300 137 388 ' 23,560 Apri 1...... 3,874 214 69 129 7,680 May. 1,610 109 29 51.9 3,190 June 1,318 148 20 43.9 2,610 July 40S.5 20 S.5 13.2 810 Augu st ...... 204.5 8.5 5.5 6.60 406 Septeiaber...... 135.2 5.5 3.7 4.51 268 Water year 1942-43 ...... 43,894.1 1,760 3.7 120 S7.050 Peak discharge.- Dec. 24 (2:30 a.m.) 1.150 sac. -ft. : Dec. 28 (1 p.m.) 1,860 aec.-ft.: Jan. 21 (4sSO p.B.J 2,SlO sec.-ft,J Jan. 23 (6 a.m.) 2,200 sec.-ft.s Jan. 30 (10 a.m.) 1,510 sec.-ft.J fcr 9 (8:30 a.m.) 1,510 aec.-ft. Time basis; Pacific war time. Tc convert war time to standard time, subtract 1 hour. FEATHER RIVER BASIN 323 North Fork Yuba River near Sierra City, Calif. Location.- Water-stage recorder, lat. 39°34', long. 120°40', in NWi sec. 32, T. 20 N., R. I'd E., 1$ miles west of Sierra City and 2i miles downstream from South Fork of North Fork. Altitude of gage, about 4,100 feet (from topographic map). Drainage area.- 91.3 square miles. Records available.- 1911-13 (fragmentary), Dec. 1923 to September 1943. Average discharge.- 19 years (1924-43), 233 second-feet. Extremes.- Maximum discharge during year, 3,560 second-feet Jan. 21 (gage height, 5.50 feet;: minimum, 49 second-feet Sept. 24. 1923-43: Maximum discharge, 9,800 second-feet Dec. 11, 1937 (gage height, 10.0 feet), from rating curve extended above 2,500 second-feet; miriimum, 26 second-feet Oct. 15, 1931, Aug. 22, 23, 1934. Remarks.- Records good except those for Apr. 1 to May 24, which are fair. Small diver- sions above station for mining. Rating table, water year 1942-43 (gage height, In feet, and discharge, in second-feet) (Shifting-control method used Jan. 2-21} 0.7 1.9 300 3.6 1,260 .9 66 2.2 420 3.9 1,610 1.1 96 2.6 560 4.3 2,030 1.3 134 2.8 740 1.6 208 3.1 960 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Auf,. Sept. 1 61 61 228 460 312 248 555 1,310 1,160 222 85 62 2 60 59 418 396 297 248 638 1,310 936 230 85 61 3 60 36 308 344 280 251 692 1,320 768 211 85 61 4 60 70 230 316 269 266 710 1,320 668 200 a84 60 5 60 65 190 290 263 344 831 1,310 608 190 a83 59 6 59 64 170 263 257 404 761 1,330 650 182 82 68 7 59 62 168 248 273 392 789 1,230 530 176 82 58 8 59 a62 151 236 263 510 838 1,080 525 168 80 69 9 59 a64 144 225 251 964 728 1,020 516 160 79 68 10 59 a62 139 216 245 V°i° 626 1,030 610 166 77 56 11 70 62 132 205 239 768 572 999 501 151 a75 58 12 70 62 130 200 236 656 644 922 478 144 a74 56 13 69 62 130 190 236 626 764 859 438 141 a72 56 14 66 73 126 187 242 608 880 789 412 134 a70 56 15 69 165 122 185 248 525 1,040 722 392 130 a70 55 16 64 91 122 182 257 474 1,110 > 650 384 128 a69 66 17 62 323 120 165 260 452 1,110 60B 384 126 a69 56 18 61 783 120 160 266 416 1,060 6£6 380 120 a68 65 19 61 273 116 163 266 388 1,020 S26 360 118 a68 64 20 60 175 116 182 283 364 929 650 332 120 a67 53 21 59 144 118 1,950 293 360 1,040 716 308 122 a67 59 22 59 134 114 1,260 332 348 1,120 846 290 118 67 58 23 58 134 426 936 316 340 1,280 999 269 110 67 62 24 58 2«4 791 698 300 348 1,330 1,060 267 107 67 60 25 58 251 470 566 290 376 1,170 1,050 245 103 67« 53 26 58 186 356 496 276 420 967 1,010 236 100 66 53 27 58 293 442 456 263 483 957 992 228 96 64 53 28 59 260 1,070 416 254 535 1,510 936 222 93 62 54 29 61 288 740 388 650 1,110 846 216 91 62 64 30 64 280 596 372 _ 608 1,080 789 214 90 62 53 31 . 62 556 332 - 535 - 950 ~ 88 64 " Second- Runoff in Month fee t-days Maximum Mininum Mean ao re-feet October...... 1,902 70 SB 61.4 3,770 November...... 4,897 783 59 163 9,710 Deoetfber ...... 9,054 1,070 112 292 ' 17,960 Calendar year 1942 ...... 123,623 1,590 56 339 846,800 January ...... 12,677 1,960 160 409 86.140 February...... :...... 7,687 332 236 270 15,010 March...... 14,917 1,010 248 481 29,590 April ...... 27,841 1,810 566 928 55,880 May 29,903 1,330 608 965 59,310 June ...... 13,316 1,160 214 444 86,410 July...... 4,324 230 88 139 8,680 August ...... 2,239 85 62 78.2 4,440 September ...... 1,672 62 60 66,7 3,390 Water year 1948-43 ...... 130,509 1,960 50 367 268,600 a Bo gage-height record} discharge Interpolated on basis cf recorded range In stage, Time basis: Pacific war time. To convert war tlire to standard tlire, subtract 1 hour. 324 FEATHER RIVER BASIN North Fork Yuba River below Goodyears Bar, Calif. Location.- Water-stage recorder, lat. 39°32«, long. 120°56», In SWi sec. 11, T. 19 N., RTTTK., 34 miles downstream from Goodyears Creek and 4 miles southwest of Goodyears Bar. Altitude of gage, about 2,450 feet (from topographic map). Drainage area.- 244 square miles. Records available.- December 1930 to, November 1937, December 1938 to September 1943. Average discharge.- 10 years (1931-37, 1939-43), 760 second-feet. Extremes.- Maximum discharge during year, 16,000 second-feet Jan. 21 (gage height; 15.25 reetj; minimum, 144 second-feet Sept. 23, 24, 30. 1930-43: Maximum discharge, 26,000 second-feet Dec. 11, 1937 (gage height, 19.0 feet, from floodmarks), from rating curve extended above 6,000 second-feet on basis of drift-velocity measurement at 18,000 second-feet; minimum, 69 second-feet Aug. 26, (1931. Remarks.- Records excellent. Several small diversions above station for Irrigation and mining. Rating tattle, water year 1942-43 (gage height, in feet, and discharge, in aecond-feet) 1.9 142 3.5 456 6.0 1,660 10.0 5,900 2.1 168 4.0 610 7.0 2,460 11.0 7,360 2.4 214 4.5 SOS 8.0 3,460 12.0 9,000 3.0 368 5.0 1,040 9.0 4,600 13.0 10,900 ' ' ' Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 172 162 604 1,420 1,540 982 730 2,530 2,880 501 839 174 2 170 161 954 1,260 1,350 949 820 2,570 2,150 f22 237 178 3 168 282 790 1,060 1,190 939 ,910 2,480 1,6OO 4S6 236 172 4 165 208 617 973 1,130 1,080 ,920 2,500 1,370 462 834 171 5 165 162 588 880 1,070 1,400 ,320 2,350 1,270 448 830 170 6 164 172 513 799 1,010 2,260 ,070 2,340 1,150 434 828 167 7 164 172 480 743 1,180 2,060 ,100 2,170 1,100 417 287 165 8 162 177 439 694 1,170 2,730 tO«10TO(0(OK>tOtOtOIOtOtOH1-"10f ,430 1,950 1,070 400 283 168 9 161 180 434 655 1,060 5,070 ,960 1,820 1,050 384 819 168 10 162 172 414 634 1,000 5,470 ,760 1,850 1,030 374 2-18 165 11 194 170 406 604 949 3,870 ,6QO 1,8,00 1,000 364 814 165 12 195 168 395 575 921 2,990 ,660 1,680 968 365 818 164 13 1S2 168 395 556 916 2,610 840 1,590 912 943 809 161 14 178 183 400 543 939 2,660 ,130 1,490 857 939 804 ' 168 15 183 485 390 540 968 2,300 ,410 1,380 817 rso 803 168 16 176 290 388 582 987 2,080 ,550 1,260 790 384 801 168 17 168 1,420 372 489 982 1,870 ,470 1,190 786 318 800 167 18 167 3,380 360 450 9S2 1,680 340 1,190 773 S16 196 155 19 165 1,000 346 459 973 1,520 280 1,220 743 306 1.96 158 20 164 597 360 678 1,040 X,420 ,080 1,220 702 300 195 162 21 162 465 332 9,580 1,080 1,380 ,210 1,310 671 ?18 194 150 22 161 408 348 6,420 1,460 1,320 ,340 1,430 644 ?02 196 149 23 160 397 1,430 5,870 1,340 1,250 610 1,680 617 ?90 195 147 24 - 168 698 3,320 3,480 1,260 1,250 720 1,730 594 r<34 195 146 25 160 739 1.S60 8,490 1,1180 1,290 ,400 1,760 678 F78 198 148 26 158 531 1,240 2,170 1,100 1,390 ,000 1,760 666 F73 189 149 27 161 894 1,820 8,130 1,060 1,540 ,040 1,710 537 res 186 160 28 161 76O 4,520 1,860 1,020 1,680 ,370 1,600 626 F68 188 160 29 162 637 8,880 1,840 8,090 ,400 1,460 616 F64 180 160 30 166 714 1,9OO 8,310 1,060 ,2SO 1,390 sea m 178 148 31 165 1,780 1,890 1,740 1,800 f46 176 Second- Runoff In Month foot-days MaxiWJB Minima Mean acre-feet Octo ber 5,198 195 168 168 10,310 Hove; ber...... 15,906 3,380. 161 630 31,550 Dec* ber...... A ...... 30,069 4,330 332 970 59,640 Calendar year 1942 396,514 7,640 168 1,086 786,500 - Janu ary 54,464 9,680 460 1,757 108,000 Febr 30,847 1,540 916 1,1O2 61,180 arc 68,770 6,470 939 8,085 124,600 Apr! 1...... 65,680 3,870 1,600 8,189 130,300 May. 54,810 8,570 1,190 1,7*9 107,600 June 28,751 8,880 501 968 57,030 July 10,733 688 845 346 81,390 Augu 6,383 839 ' 176 806 18,660 September...... 4,76O 174 146 169 9,440 Water y«e-r 1948-43 ...... 369,770 9,680 146 1.013 733,400 Peak discharge.- Ior. 18 (7r30 a.*.) 5,260 ato.-ti,; Dee. 84 (3 a.m.) 4,770 M~.-ft.; Dee. 88 (IS m.) 8,700 Seo.-ft.j Jan. 81 (6 p.m.) 16,000 aeo.-ft.) Jan. 83 (4t80 a.a.) 6,9*0 seo.-ft.; Her. To eonwrt war tla» to standard tl«e, sub tract 1 hour. FEATHER RIVER BASIN 325 North Fork Yuba River at Colgate diversion dam, Calif. Location.- Water-stage recorders, lat. 39°23', long. 121°09'. near center of sec, 25, T. 18 'N., R. 7 E.; one recorder 200 feet upstream from Colgate diversion dam, another at intake of Colgate tunnel; both 1.5 miles upstream from Middle Fork Yuba River and 1.5 miles downstream from Bullards Bar Dam. Altitude of gages, about 1,250 feet (from topographic map). Drainage area.- 484 square miles. Records available.- December 1940 to September 1943. Extremes.- 1940-41: Maximum discharge during period December to September 30, 600 second- feet Feb. 10; minimum daily, 223 second-feet Dec. 15. 1941-42: Maximum discharge during water year, 28,100 second-feet Feb. 6; minimum daily, 241 second-feet Oct. 25. 1942-43: Maximum discharge during water year, 44,200 second-feet Jan. 21; minimum daily, 250 second-feet Nov. 3. Remarks.- Records good. Discharge is combined flow of spill over Colgate diversion dam and 81version through Colgate tunnel. Regulation, storage, and small diversions above station. Cooperation.-co. Oage-height record for Colgate tunnel furnished by Pacific Qas & Electric Discharge, In second-feet, 1940-43 1940-41 Day Oct. NOT. Dec. Jan. Feb. Mar. Apr. Hay June July Aug . Sept. 1 _ 8,800 1,940 7,580 2,970 4,100 2,850 989 457 295 2 _ 2,960 1,840 6,930 3,320 4,220 2,810 947 457 339 3 _ 1,920 1,730 5.86O 3,160 5,040 2,700 914 461 368 4 _ 1,760 1,660 3,280 5,310 5,140 2,710 8S1 466 394 5 - 1,680 1,610 4,460 5,1SO 5,550 2,850 S41 471 365 6 _ 1,700 1,710 3,390 3,950 5,620 2,760 821 471 886 7 - 3,460 1,620 3,640 3,610 5,080 2.S50 791 467 288 8 _ 2,990 1,840 3,320 3,2SO 5,170 2,490 763 461 349 9 - 2,360 4,580 3,150 3,360 5,780 2,290 736 461 265 10 - 2,010 14,400 3,180 3,330 5,480 2,270 720 392 344 11 268 1,S20 14,300 3,080 3,10O 5,S40 2,340 687 476 338 12 263 1.6SO 9,080 3,000 2,970 7,040 2,340 679 476 312 13 254 1,790 6,360 2,990 8,970 9,550 2,340 614 476 261 14 236 3,880 4,690 3,150 3,090 7,610 2,220 677 476 267 15 223 2,SSO 4,120 8,940 3,880 5,700 1,9SO 679 437 334 16 236 2,420 3,830 2,810 3,520 5,120 1,800 679 339 334 17 307 2,080 3,500 8,870 3,020 5,160 1,720 681 295 328 18 583 1,880 3,720 3,030 2,780 5,440 1,620 674 399 294 19 697 1,720 3,440 8,990 2,580 4,370 1,560 612 447 265 20 98S 1,630 3,200 2,880 2,510 4,080 1,460 339 449 265 21 2,720 1,710 4,080 2,620 2,490 4,410 1,370 444 452 259 22 6,430 2,350 4,290 8,510 2,600 4,840 1,310 489 454 281 23 7,520 8,740 3,900 2,490 2,810 5,220 1.S70 470 452 294 24 5,910 3,640 4, ISO 2,370 3,050 5,150 1,250 485 351 303 25 4,160 5,100 3,S50 2,310 3,410 4,960 1,270 480 388 309 26 4,810 7,160 3,430 2,310 3,520 4,550 1,150 47S 403 294 27 12,9OO 4,510 3,420 2,430 3,690 4,040 1,140 478 488 258 28 3,130 3,280 5,060 8,460 3,690 3,690 1,140 478 486 254 tas9Q 5,580 2,760 - 2,750 3,520 3,320 1,050 47S 404 288 30 4.S10 B,360 - 2,940 3,760 2,990 1,010 473 272 288 31 3,610 2,140 - 2,820 - 2,990 - 455 295 - Peak discharge. - Dec. 27 (12 n.) 17,400 sec. -ft. Feb. 10 (7 p.m.) 30,600 sec. -ft. J Mr* 13 (4:3O p.m.) 10,4OO sec. -ft. 326 FEATHER RIVER BASIN Discharge, In second-feet, of North Pork Yuba River at Colgate diversion dam, Calif., 1940-43 Continued Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 288 286 489 1,460 3,850 1,390 1,850 3,490 3,940 1,630 477 330 2 290 374 532 1,270 5,020 1,390 1,900- 3,110 4,120 1,600 432 330 3 261 524 6,950 1,200 6,120 1,370 3,560 3,040 3,900 1,5?0 460 328 4 254 530 2,630 1,120 7,120 1,370 8,140 3,060 4,220 1,450 445 326 5 249 532 1,390 1,050 8,990 1,430 7,100 3,040 4,590 1,310 425 326 6 292 504 1,000 1,010 21,800 1,520 5,560 3,170 4,710 1,300 447 319 7 290 482 818 1,950 12,100 1,490 4,550 3,560 4,280 1,200 439 326 8 286 420 727 4,890 7,610 1,500 4,150 4,010 4,040 1,180 453 326 9 286 S52 662 3,320 6,180 1,590 4,100 4,250 4,190 1,050 453 326 10 283 324 653 2,680 4,980 1,690 4,280 3,810 4,210 997 448 328 11 245 315 648 2,440 4,190 2,290 4,370 3,490 3,860 932 437 331 12 245 308 648 2,300 3,610 2,950 4,530 3,190 3,660 91 Q 407 331 13 272 299 646 2,160 3,170 2,780 5,320 2,950 3,520 873 384 331 14 272 299 2,160 2,050 2,890 2,460 6,240 2,960 3,560 813 377 331 15 272 247 8,690 1,950 2,650 2,190 4,960 3,400 3,640 801 367 331 16 276 304 15,300 2,030 2,470 2,000 4,700 3,500 3,480 735 365 330 17 276 310 6,810 1,820 2,300 1,860 4,250 3,360 3,180 739 363 331 18 245 324 4,740 1,650 2,160 1,850 3,740 3,400 3,030 742 361 324 19 243 324 4,740 1,530 2,020 1,790 3,680 3,730 2,920 724 350 335 20 272 294 4,380 1,430 1,930 1,710 3,850 4,590 2,710 697 344 335 21 290 308 3,490 1,350 1,930 1,660 3,790 5,450 2,500 6^9 342 310 22 290 294 2,730 1,520 1,850 1,640 4,250 5,940 2,380 639 339 290 23 286 268 2,480 2,420 1,760 1,620 4,270 5,460 2,330 6<9 331 306 24 263 301 2,090 4,580 1,710 1,600 3,770 5,240 2,280 610 331 328 25 241 315 1,840 12,200 1,630 1,540 3,740 7,690 2,190 5<56 331 337 26 261 310 1,650 12,900 1,550 1,440 3,510 8,230 2,010 517 330 355 27 294 294 1,550 18,600 1,490 1,440 3,700 6,130 1,900 555 330 339 28 292 288 1,810 10,900 1,430 1,400 3,520 5,360 1,780 5,^5 328 357 29 290 277 2,140 7,170 _ 1,440 3,050 4,680 1,740 505 330 357 30 288 371 2,030 5,520 _ 1,480 3,090 4,250 1,690 495 326 349 31 283 - 1,590 4,440 - 1,650 - 3,870 - 487 328 - Peak discharge.- Dec. 16 (7r30 a.m.) 21.400 sec. -ft.: Jan. 27 (Ilr30 a.m.) 25.900 sec. -ft.; Feb. 6 (8f30 a.m.) 28,100 sec. -ft. Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 342 267 1,120 3,030 4,720 2,240 3,520 3,700 4,200 744 367 367 2 342 263 1,320 2,740 3,810 2,140 3,560 4,070 3,820 748 357 367 3 348 250 1,610 2,290 3,210 2,100 3,690 3,700 2,700 748 340 366 4 346 258 1,180 2,010 2,950 2,320 3,600 3,830 2,240 659 348 366 5 344 267 977 1,780 2,790 3,040 4,370 3,570 2,040 736 362 364 6 348 310 944 1,600 2,520 5,720 4,100 3,470 1,840 704 348 364 7 346 310 933 1,440 2,770 5,990 3,950 3,340 1,720 657 346 364 8 346 310 845 1,340 3,110 6,440 4,480 3,000 1,660 eo4 333 . 366 9 340 303 783 1,220 2,700 12,100 3,970 2,730 1,590 £62 353 366 10 339 292 788 1,160 2,410 13,500 3,460 2,730 1,540 £48 357 364 11 335 286 778 1,110 2,240 9,*850 3,120 2,710 1,490 £48 367 360 12 324 272 769 1,050 2,120 7,090 3,050 2,550 1,430 eso 369 364 13 319 281 760 998 2,070 5,940 3,180 2,420 1,390 £44 371 367 14 315 304 76O f 964 2,020 6,780 3,580 2,S9O 1,290 £08 371 369 15 312 376 760 940 2,190 5,960 3,930 2,150 1,220 480 369 367 16 304 439 727 . 918 2,170 4,980 4,220 2,000 1,170 4SO 369 366 17 301 554 752 885 2,170 4,460 4,140 1,870 1,140 480 369 366 18 299 5,030 720 824 2,170 4,040 3,890 1,830 1,130 482 366 367 19 299 2,860 700 792 2,110 3,560 3,720 1,840 1,090 482 357 369 20 297 1,330 700 973 2,190 3,260 3,550 1,790 1,060 464 373 3&S 21 295 949 700 28,200 2,310 3,080 3,360 1,886 1,010 460 373 369 22 294 779 700 16,400 3,120 3,060 3,760 1,930 974 464 373 369 23 , 292 722 1,570 16,100 3,620 2,840 3,830 2,210 939 464 373 364 24 290 765 7,820 9,620 3,100 2,710 4,160 2,360 902 458 371 349 25 288 1,310 5,250 6,490 S.980 2,740 3,890 2,380 866 450 371 342 26 290 992 3,120 5,820 2,710- 2,820 3,250 2,360 844 420 369 323 27 288 1,370 2,460 6,000 2,520 3,200 3,060 2,310 816 394 367 330 28 288 1,550 8,840 5,000 2,340 3,360 5,520 2,210 796 388 366 330 29 288 1,250 7,200 5,160 _ 4,190 4,380 2,040 769 ?78 362 317 30 286 1,200 4,250 9,000 - 4,520 3,700 1,930 758 ?73 369 290 31 279 - 3,640 6,390 - 3,770 - 2,380 - 373 367 - Peak discharge.- Dec. 28 (8 p.m.) 16,300 sec.-ft. Jan. 21 (6t30 p.m.) 44,200 sec.-ft.; Jan. 23 (8 a.m.) IB,500 aec.-ft. FEATHER RIVER BASIN 327 Monthly discharge, ir» second-feet, of North Pork Yuba River at Colgate diversion dam, Calif., 1940-43 Second- Runoff in Month foot-days Maximum Minimum Mean aore-feet December 11-31, 1940 ...... 70,655 12,900 223 3,365 140, 1OO Calendar year ...... _ _ _ _ _ 81,770 7,160 1,630 2,638 162,200 121,380 14,400 1,610 4,335 240,800 March...... 104,920 7,580 2,310 3,386 208,100 April ...... 100,280 5,510 8,490 3,343 198,900 May...... :...... 157,450 9,550 2,990 5,079 312,300 57,940 2,850 1,010 1,931 114,900 19,932 989 339 643 39,530 13,189 476 272 425 26,160 September...... 9,107 394 254 504 18,060 ' The period...... _ _ _ 1,461,000 8,475 294 241 273 16,810 10,378 532 247 346 20,580 December...... '...... 88,013 15,300 489 2,839 174,600 Calendar year 1941 ...... 772,834 15,300 241 2,117 1,533,000 120,910 18,600 1,010 3,900 239,800 124,510 21,800 1,430 4,447 247,000 53,530 2,950 1,370 1,727 106,800 127,520 8,140 1,850 4,251 - 252,900 May...... 131,410 8,230 2,950 4,239 260,600 96,560 4,710 1,690 3,219 191,500 27,598 1,660 487 890 54,740 11,880 477 326 383 23,560 September...... 9,903 357 290 330 19,640 Water year 1941-42 ...... 810,687 21,800 241 2,221 1,608,000 October 1942 ...... 9,724 348 279 314 19,890 25,449 5,030 250 848 50,480 December...... 63,476 8,840 700 2,048 : 125,900 Calendar year 1942 ...... 802,470 21,800 250 2,199 1,592,000 136,244 22,200 792 4,395 270,200 75,140 4,720 2,020 2,684 149,000 March...... 147,900 13,600 2,100 4,771 293,400 113,990 5,520 3,050 3.8OO 226,100 May...... 79,580 4,070 1,790 2,567 157,800 44,434 4,200 758 1,481 88,130 16,350 748 373 527 32,430 11,253 373 333 365 22,320 September...... 10,700 369 290 357 21,220 Water year 1942-43 ...... 734,240 22,200 250 2,012 1,456,000 Time basis; Pacific standard time prior to 2 a.m., Peb, 9, 1942; Pacific war time time to standard time, subtract 1 hour. 328 FEATHER RIVER BASIN South Fork Yuba River at Jones Bar, Calif. Location.- Water-stage recorder, lat. 39°18», long. 121°07', near center of west side or sec. 32, T. 17 N., R. 8 E., at Jones Bar Bridge, 250 feet upstream from Rush Creek and 5 miles northwest of Nevada City. Altitude of gage, about 1,050 feet (from topographic map). Drainage area.- 340 square miles. Records available.- October 1940 to September 1943. Extremes.- Haxlium discharge during year, 16,500 second-feet Jan. 22 (gage height, 17.60 reetj; minimum, 8.5 second-feet Sept. 22-25. 1940-43: Maximum discharge, that of Jan. 22, 1943; minimum, that of Sept. 22-25, 1943. Remarks.- Records good except those for periods of no gage-height record, which are fair. Flow regulated by storage and diversions above station for power and Irrigation. Rating tables, water year 1942-43 (gage height, In feet, discharge, In aecond-fcet) Oct. 1 to Jan. 21 Jan. 22 to Sept. 30 1.7 10 3.0 135 6.0 1,080 1.8 2.6 71 1.9 IS 3.4 214 7.0 1,640 1.9 2.9 114 2.1 31 3.8 306 8.0 2,370 2.0 3.2 163 2.2 38 4.2 416 9.0 3,300 2.1 3.6 254 2.4 57 4.6 545 10.0 4,470 2.2 28 4.0 358 2.6 79 5.0 685 12.0 7,280 2.4 47 2.8 104 5.5 870 13.5 9,600 Note.- Same as preeei- ing table above 4.0 fe^t. Discharge, in second-feet , water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Har. Apr. May June July Aug. Sept. 1 15 34 169 604 1,390 629 1,360 1,400 5^wo aSO 23 11 2 14 34 204 566 1,120 615 1,320 2,130 3,960 a75 22 11 3 14 129 254 459 966 566 1,470 2,110 1,190 68 23 10 4 13 101 243 410 896 650 1,490 1,940 1,140 62 23 10 S 13 57 229 376 650 876 1,940 1,730 727 60 23 10 6 13 48 263 a350 755 2,050 1,730 1,650 552 57 23 10 7 13 45 263 aSOO 942 1,390 1,600 1,260 528 56 22 10 8 13 43 245 a275 946 1,490 2,180 1,240 47S 55 22 10 9 13 45 236 a275 810 4,320 1,730 1,120 531 54 22 10 10 14 43 243 a280 744 7,160 1,330 a400 854 52 21 10 11 27 42 240 a260 706 4,560 1,140 a600 612 49 21 10 12 38 41 236 a250 671 3,090 1,200 1,290 570 4S 28 10 13 33 40 229 a220 632 2,430 1,46O 942 524 . 46 22 10 14 24 41 225 a220 622 2,710 2,050 608 472 44 20 10 15 24 131 221 a220 608 2,180 2,470 a400 407 44 20 &10 16 32 110 212 R210 587 1,800 2,840 350 aSSO '44 19 alO 17 37 996 210 a200 566 1,600 2,800 416 aS50 43 18 a!5 18 36 2,160 199 a200 642 1,420 2,650 428 a350 43 17 10 19 34 729 185 a20O 528 1,280 2,270 440 aS50 42 14 10 20 34 366 185 501 531 1,060 .1,980 517 a350 39 14 10 21 33 SIB 1S9 6,560 545 998 1,69O 1,050 a35O 40 13 9 22 33 163 195 9,400 858 990 2,05O 1,590 a3SO 39 13 8.5 23 33 146 i.aoo . 6,530 S58 914 2,300 1,780 a340 86 14 9 24 32 142 2,110 ,300 7S6 894 2,720 E,720 .a250 34 14 8.5 26 33 163 1,080 t,110 814 878 2,530 2,290 a200 34 14 8.5 *26 34 148 685 1,910 776 678 1,870 ' 1,720 alSO 33 14 9 27 36 389 552 1,830 720 926 1,600 1.890 aEOO 30 13 10 28 36 292 2,300 1,490 668 1,080 3,630 1,920 a!70 29 12 10 29 34 218 1,440 1,650 _ 1,870 2,400 1,580 a!50 28 12 11 30 34 189 898 3,190 _ 2,470 1,510 918 alOO 26 12 11 31 34 - 716 1,920 - 1,660 - 2,480 - 24 12 " Second- Runoff in Month foot-days Maximum Minimum Bean acre-feet October...... 826 38 13 26.6 1,640 November...... 7,297 2,160 34 243 14,470 December...... 15,856 2,300 169 53.1 31,450 Calendar year 1942 ...... 307,996 9,600 13 S44 610,900 January ...... 48,268 9,400 200 1,557 95,740 February 21,439 1,390 528 766 42,520 March...... 66,374 7,160 566 1.7P6 109,600 April ...... 59,210 3,630 1,140 1.9T4 117,400 Hay...... 40,9O9 2,720 350 1,380 81,140 June ...... 22,225 5,830 100 741 44,080 July...... 1,414 80 24 45.6 2,800 August ...... 5S4 S3 12 17.9 1,100 September...... 301.5 15 6.5 10.0 598 Water year 1942-43 ...... 273,673.5 9,400 8.6 7PO ' 542,700 Peak discharge.- Jan. 22 (It30 a.m.) 16.500 sec. -ft.: Har. 10 (5 a.n.) 8.480 sec. -ft.: June 1 (6 p.a.) 6,760 sec.-ft. a Ho gage-height record; discharge computed on basis of unpublished records for atstion at Washington. Time basis; Pacific war tiffle. To convert war tlae to standard time, subtract 1 hpur. FEATHER RIVER BASIN 329 Bowman Lake near Granltevllle, Calif. Location.- Staff gage, lat. 39°27', long. 120°39', in SWi sec. 5, T. 18 N., R. 12 E., at Bowman Dam on Canyon Creek, 4 miles east of Granltevllle. Datum of gage Is 5,000.0 feet above mean sea level (levels by Nevada Irrigation District); gage readi-gs have been reduced to elevations above mean sea level. Drainage area.- 30 square miles. Records available.- December 1926 to September 1943. tactremea.- Maximum contents observed during year, 70,500 acre-feet June 1 (elevation, 5755579 feet); minimum observed, 21,400 acre-feet Dec. 22, 23 (elevation, 5,494.9 feet). 1926-43: Maximum contents observed, 70,500 acre-feet June 16, 17, 1937, June 1, 1943 (elevation, 5,565.9 feet); contents less than 1,000 acre-feet and therefore doubtful, at times during 1926, 1928-31, 1933-35, 1937, 1939. Remarks.- Lake Is formed by one rock-fill and one concrete-arch dam; completed and storage began In November 1926. Usable capacity, 68,200 acre-feet between elevations 5,400 feet (bottom of outlet tunnel) and 5,563 feet (crest of concrete-arch dam) above mean sea level. Flashboards are occasionally added, Increasing elevation to 5,564.5 feet and capacity to 69,400 acre-feet. Lake receives water from Middle Fork Yuba River, through Milton-Bowman tunnel (see p. 321), and releases It through Bownan- Spauldlng Canal (see p. 331 ) which conveys It to reservoirs of Pacific Gas & Electric Co. Water Is eventually used for Irrigation by Nevada Irrigation District. Record of dally contents, computed from gage readings made at odd times, shows total contents, all of which is available for release. Cooperation.- Record of dally gage heights furnished by Nevada Irrigation District. Contents, In acre-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. Hay June July Auf. Sept. 1 46,100 _ _ _ 34,400 36,100 39,200 54,600 70,500 69,800 58,800 47,700 2 - 30,700 24,900 - 34,600 35,000 39,200 - 70,100 69,500 - - 3 - - 24,900 - 34,600 35,000 39,300 57,000 70,000 69,200 - - 4 43,800 29,900 24,800 26,900 34,600 34,900 39,400 58,200 69,800 69,000 57,500 - 8 - 29,500 24,800 - 34,600 35,100 39,900 59,300 69,700 63,700 - - 6 _ _ _ _ 34,600 35,500 _ 60,400 70,100 68,400 _ 45,900 7 42,300 _ 24,700 _ 34,600 36,000 _ 61,500 70,000 68,000 - 45,300 8 _ 24,700 26,400 34,600 36,500 40,700 - 70,100 67,700 56,300 46,000 9 - 27,400 24,600 26,400 34,600 37,300 _ 62,600 70,100 67,500 - 44,500 10 - - 26,600 38,000 - 63,200 70,100 67,200 - 44,100 11 _ _ _ 26,600 _ 38,600 _ _ 70,300 66,800 55,200 43,600 12 40,000 - 23,600 26,600 _ 39,000 40,700 64,900 70,300 66,500 - 43,100 13 39,700 26,400 23,400 26,300 34,600 39,300 40,700 65,800 70,300 66,100 - 42,700 14 39,300 _ _ 26,200 34,600 39,900 41,400 66,900 70,200 65,800 - 42,300 15 - 24,500 22,900 34,600 40,1OO 41,500 - - 65,400 54,000 41,900 16 _ _ 22,700 26,900 34,600 40,400 41,500 68,600 70,200 64,900 _ 41.500 - _ . - .- 17 26,700 _ 40,400 42,100 70,300 64,600 ' 41,200 18 37,300 25,800 22,200 _ _ 40,400 42,700 69,300 70,300 64,200 40,800 19 - _ 22,000 . 34,600 40,300 . 70,000 70,300 63,900 - 40,500 20 - 26,900 21,800 - 34,600 40, 2OO 44,200 70,400 70,300 63,500 52,000 40,100 21 _ 26,800 _ _ 34,600 40,000 44,800 70,300 70,300 63,200 _ 39,800 22 36,800 - 21,400 29,800 34,600 39,800 45,300 70,200 70,300 62,800 - 39,400 23 - 25,200 21,400 30,700 34,900 39,600 45,700 70,200 70,300 62,400 51,000 39,000 24 26,300 22,600 31,800 36,000 39,300 46,700 70,200 70,300 62,000 - 38,700 25 36,500 26,200 - - 36,100 39,100 47,700 70,200 - 61,600 - 38,300 26 _ 24,900 _ 33,000 36,200 38,900 48,200 70,200 _ 61,200 49,800 38,000 27 - - 23,200 33,400 36,200 38,600 48,600 70,20O 70,300 60,800 - 37,60O 28 - 26,300 24,400 _ 36,200 38,300 49,100 70,200 70,200 60,400 - 37,300 29 32,600 25,000 26,400 - _ 38,600 49,900 70,200 70,200 60,000 48,600 37,100 30 - 24,900 26,900 . _ 39,100 « 70,100 70,000 59,600 - 36,80O 31 " - ' 26,200 34,200 - 39,200 - 70,200 - 59,2OO 48,100 - Monthly elevation and contents, water year October 1942 to September 1943 Elevation Contents Change in contents Date during month (feet) (acre-feet) (acre- feet) Dec. 31...... 5,503.7 26,200 +1.3OO Calendar year 1942.... - - -5,40O 34 £00 Water year 1942-43.... - - -8,700 To convert war time to standard time 330 FEATHER RIVER BASIN Canyon Creek below Bowman Lake, Calif. Location.- Water-stage recorder and concrete control, lat. 39°26' , long. 120°40', in SEi sec'. 7, T. 18 N., R. 12 E., 1 mile downstream from Bowman Lake and 3 miles upstream from Texas Creek. Altitude of gage, about 5,100 feet (from topographic map). Drainage area.- 31.7 square miles. Records available.- January 1927 to September 1943. Average discharge.- 16 years, 36.6 second-feet. Extremes.- Maximum discharge during year, 2,030 second-feet (regulated) June 1 (gage height, 5.84 feet); minimum, 0.1 second-foot Aug. 4-21. 1927-43: Maximum discharge, that of June 1, 1943; maximum gage height, 5.98 feet June 6, 1936; no flow at times when there is no leakage from dams above station. Remarks.- Records good. Flow regulated by Bowman Lake (see preceding pag-e) and diversion into Bowman-Spauldlng Canal (see p. 231). This basin receives water from Middle Fork Yuba River through Milton-Bowman tunnel (see p. 321 f. Cooperation.- Water-stage recorder graph furnished by Nevada Irrigation Eistrlct. Rating table, water yea 1942-43 (gage height, in feet, and dischirge, in second-feet) 1.0 0.1 1.6 49 3.4 302 1.1 .7 1.7 76 3.7 395 1.7 1.8 10 110 4.0 520 1.3 2.7 1.9 17 1481 4.5 775 1.4 3.8 2.0 26 194 5.0 1,110 4.9 2.1 246 5.5 1,590 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.5 1, 1 2.3 3.7 2.5 3.1 a260 2.9 1,500 4.1 0.3 0.2 ?, .4 1.3 3.4 3.6 2.4 3.2 a280 S.8 1,060 3.2 ,S .2 7, .4 2.3 2.3 3.2 2.3 3.4 294 2.S 676 1.7 .2 .2 4 .4 1.4 S.I 3.0 2.6 4,9 291 C.7 459 1.2 .1 .2 5 .4 1.1 2.0 2.9 2.6 7 305 2.7 336 1.5 .1 .2 .5 .7 2.1 2.9 2.6 9 296 2.7 274 1.2 .1 .2 7 .6 .7 2.0 2.8 3.0 5.5 316 2.7 263 .7 .1 .2 .6 .8 1.9 Z.I 2.7 17 351 S.8 23S .7 .1 .2 .6 .8 1.8 2.7 2.7 116 308 2,8 305 .6 .1 a. 2 10 .6 .8 1.9 2.7 2.6 199 271 27 327 .5 .1 .2 .8 .7 1.9 2.6 2.5 137 277 3.2 *27 ,4 .1 .2 .8 .7 2.0 S.5 2.7 166 277 2.4 .522 .4 .1' .2 .8 .7 2.3 2.4 3.1 155 277 2.2 291 .3 .1 .2 .8 .9 2.5 2.2 3.5 157 302 2.2 260 .3 .1 .2 15 .7 3.5 2.3 2.1 3.6 138 328 40 220 .2 .1 .2 .9 1.8 2.0 2.1 3.6 148 336 83 126 .2 .1 .2 .9 42 1.6 2.1 3.7 163 333 170 112 .2 .1 .2 1 p .9 25 1.5 2.1 3.6 175 324 175 1 148 .2 .1 .2 .9 3.4 1.5 2.0 3.7 132 316 187 126 .2 .1 .2 20 ,9 2.4 1.6 2.6 4.1 168 305 357 148 .2 .1 .2 .9 2.1 1.7 63 4.5 170 274 655 140 .3 .1 .2 .9 2.5 1.8 5.5 7.5 172 S54 640 132 .3 .2 .3 OT ,9 2.8 30 9 4.4 ISO 246 670 128 .2 .2. .3 .9 5.5 9.5 3.4 3.9 210 241 748 115 .2 .2 .3 25 .9 2.9 3.9 2.9 3.4 204 217 335 110 .2 .2 .3 oe .9 2.7 3.6 S.9 3.0 212 212 787 101 .2 .2 .3 .9 7 5.5 2.S 2.9 217 212 742 110 .2 .2 .4 1.0 3.5 20 2.6 3.0 228 112 682 90 .2 .2 .3 OQ .9 2.8 6.5 2.5 - a290 3.2 605 78 .2 .2 .4 .9 2.6 4.4 2.6 - a300 S.9 435 19 .2 .2 .2 " " " 31 .9 ~ 3.8 2.6 ~ a280 670 .2 .2 Second- Runoff in Month foot-days Maximum MiniBum Mean acre-feet 23.4 1.0 0.4 0.75 December ...."...... -...... 131.7 30 1.5 4.25 261 Calendar year 1942 ...... 32,313.4 687 .1 88.5 64,090 152.9 63 2.0 4.93 303 92.7 7.5 2.3 3.31 184 4,470.1 300 3.1 144 8,870 7,815.1 S51 2.9 261 15,500 8,542.9 835 2.2 276 16,940 8,541 1,500 19 285 16,940 20.4 4.1 .2 .66 40 4.4 .2 .1 .14 S.7 September ...... 7.0 .4 .2 .23 14 Water year 1942-43 ...... 29,928.0. 1,500 .1 82.0 59,360 a No gage-height record; discharge computed on basis of records for Bowman-Spaulding Canal at Intake. Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour. FEATHER RIVER BASIN 331 Bowman-Spaulding Canal at Intake, Calif. Location.- Water-stage recorder, lat. 39°27', long. 120°39', In sec. 8, T. 18 N., R. 12 EY, 150 feet downstream from intake and a quarter of a mile downstream from Bowman Dam. Altitude of gage, about 5,400 feet (from topographic map). Records available.- October 1927 to September 1943. Average discharge.- 16 years, 142 second-feet. Extremes.- Maximum daily discharge during year, 240 second-feet Sept. 3; mininuin daily, i.b second-feet June 20. 1927-43: Maximum daily discharge, 262 second-feet Aug. 2-9, 29, Sept. 10-13, 1928; no flow at times during, each year except 1943,. Remarks^.- Records excellent. Canal diverts from left bank of Canyon Creek below Bowman LaKeY Water is delivered to Lake Spaulding and, after passing through several power houses, is used for irrigation In Nevada Irrigation District. Cooperation.- Water-stage recorder graph and several discharge measurements furnished by Nevada irrigation District. Discharge, in second-feet, water year October 1942 to September 1943 Da; Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 236 229 234 173 188 208 120 85 1.8 232 230 237 2 236 236 200 178 192 208 105 90 1.6 232 232 236 3 236 a235 218 196 198 206 68 90 1.6 233 232 240 4 235 234 227 201 197 179 96 90 1.6 234 231 239 5 236 235 227 208 194 125 83 91 1.6 238 230 239 6 236 234 228 217 194 95 86 93 al.6 237 232 239 7 236 233 227 217 198 95 63 110 1.6 237 233 238 8 236 233 226 220 198 55 35 116 1.6 S31 S35 238 9 236 232 230 224 197 17 76i 116 1.6 229 236 237 10 236 231 232 225 196 17 118* 85 1.6 230 236 236 11 a236 231 232 225 195 17 114 110 1.6 230 236 236 12 a234 234 232 225 195 37 114 11 1.6 S30 234 236 13 234 233 232 225 194 51 114 12 1.6 232 234 236 14 234 233 232 225 194 60 86 12 1.9 S33 233 236 15 a234 223 232 225 194 100 65 7.5 1.7 233 . 233 237 16 234 233 231 224 194 117 46 6.5 1.6 232 233 239 17 234 181 231 224 194 129 46 6.5 1.7 231 239 238 18 233 102 230 224 194 147 59 6.5 1.6 S30 S38 237 19 254 222 231 224 195 161 71 6.5 1.6 S30 S3 7 237 20 235 234 232 218 194 175 79 6.5 1.5 228 236 23S 21 235 234 232 55 185 176 65 6.5 8.5 S30 236 238 22 235 a234 233 SO 156 176 66 2.6 11. 231 238 236 23 234 234 133 34 169 181 73 1.6 10 B31 239 237 24 233 232 91 35 196 184 74 1.6 10 230 238 237 25 234 226 177 46 200 181 74 1.6 10 229 237 237 '26 236 230 199 83 200 168 80 1.6 10 229 236 236 27 236 212 198 146 203 162 80 1.6 10 232 236 236 28 235 224 86 131 206 144 27 1.6 10 235 237 236 29 236 233 106 172 9Q 28 1.6 47 235 238 237 50 236 233 147 182 _ 82 67 1.6 216 234 238 237 31 236 - 156 186 - 105 1.7 232 237 Second Runoff in Month foct-days Maximum Minimum Mean acre-feet October...... 7,287 236 233 S35 14 450 November ...... 6,752 236 102 225 13*390 December ...... 6,322 234 86 204 12,540 Calendar year 1942 ...... 60,326.8 242 0 165 119,600 January...... 5,391 225 20 174 10,690 -IQ-jr February ...... 5,412 208 156 JLWO 10,730 March...... 3,848 208 17 124 7,630 April...... 2,302 120 £7 76.7 4,570 Bay...... 1,174.6 116 1.8 37.9 2,330 June ...... 375.1 216 1.5 12.5 744 Jnly...... 7,190 238 228 232 14,260 August .,'...... 7,295 239 230 235 14,470 September ...... 7,118 240 236 237 14,120 Water year 1942-43 ...... 60,466.7 240 1.5 166 119,900 a No gage-height record; discharge Interpolated. Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour. 332 FEATHER RIVER BASIN Deer Creek near Smartville, Calif. Location.- Water-stage recorder, lat. 39°13'20", long. 121°16'00", In sec. 23, T. 16 N., R. 6 E., 1 mile upstream from mouth and 2 miles northeast of Smartville. Altitude of gage, about 500 feet (from topographic map). Drainage.area.- 83.5 square miles. Records available.- June 1935 to September 1943. Extremes.- Maximum discharge during year, 11,300 second-feet >fer. 9 (gage height, 13.62 feet), from rating curve extended above 5,200 second-feet by logarithmic plotting; minimum, 0.8 second-foot Sept. 6, 7. 1935-43: Maximum discharge, that oC Mar. 9, 1943; minimum, 0.1 secoid-foot Aug. 4-6, 15, 1940. Remarks.- Records good. Storage reservoirs and diversions above station; maximum amount aiverted, about 40 second-feet. At times water from South Fork Yuba River Is diverted Into Deer Creek above station. Rating tables, water year 1942-43 (gage height, in feet, and discharge, In second-feet) Oct. 1 to War. 9 tter. 10 to Sept. 30 1.1 1.0 1.7 16 3.0 177 6.0 1,375 1.3 1.0 l.S 20 2.S 152 1.2 1.9 l.S 22 3.5 282 7.0 2,200 1.4 2.7 1.9 2S 3.2 228 1.3 3.1 1.9 2S 4.0 405 8.0 3,200 1.5 2.0 39 3.7 344 1.4 5.0 2.0 36 4.4 535 9.0 4,300 1.6 9.5 2.2 63 4.2 486 1.5 7.5 2.2 4.8 700 9.S 5,260 1.7 14 2.5 104 4.8 700 1.6 11 2.5 5.8 890 Hote.- Sane as preceding table above 4.8 feet. Discharge, in second-feet, water year October 1942 to September Day Oct. Nov. Deo. Jan. Feb. Mar. Apr. May June July Aug. Sept. ' 21 2.9 l.S 61 201 727 257 296 183 170 20 1.8 4.4 3.7 1.6 81 190 587 255 874 172 157 20 2.2 1.3 3 3.9 37 84 174 493 252 272 165 101 20 2.4 1.3 4 3.9 33 80 174 450 284 250 144 86 19 2.2 1.3 5 3.0 33 76 157 411 354 371 13! 80 16 2.4 1.0 '23 6 2.4 200 140 380 1,450 284 135 75 14 2.4 .9 7 2.5 22 153 145 60S 639 265 127 70 12 2.7 1.0 8 2.1 24 102 120 496 821 439 11B 63 12 2.4 1.5 9 2.0 23 87 121 402 2,830 320 108 61 9.S 2.5 2.2 10 2.7 20 83 61 358 3,660 272 104 57 7.5 2.2 2.4 11 4.0 20 78 43 330 1,230 232 103 61 7.5 4.4' .2.2 12 7.5 20 74 40 SOS 860 181 97 53 S 2.7 3.4 13 9 19 71 46 300 692 113 103 6S S 3.0 2.2 14 12 20 69 90 ' 287 1,040 101 100 67 9 3.4 2.0 15 12 48 73 112 275 696 106 101 46 8 2.0 2.0 16 9.5 48 67 118 264 57S 10B 103 26 5.5 2.0 2.0 17 6 573 67 109 257 620 106 98- 23 6 1.8 2.0 18 4.6 853 66 105 248 571 104 94 24 6.5 2.0 5.5 19 4.6 219 70 102 241 486 114 91 20 7 2.4 4.4 20 4.4 127 81 501 235 442 161 83 19 6.5 2.4 4.0 21 4.0 85 84 5,240 237 442 165 77 22 5.5 3.4 2.4 22 4.6 ' 54 88 2,150 518 436 152 . 79 28 5 3.7 2.0 23 4.2 44 1,670 2,570 522 388 154 77 31 5.5 5 2.0 24 4.8 38 830 1,100 584 362 149 786 73 33 5.5 6.5 1.8 25 3.3 35 504 490 339 '152 67 31 5.5 5.5 1.3 26 2.6 33 280 935 378 325 147 62 32 4.7 6 1.5 27 2.6 242 209 790 348 303 17S 58 36 3.0 6.5 1.7 28 2.4 95 1,250 607 287 284 689 57 30 2.4 4.7 2.5 29 2.1 60 553 1,190 489 245 57 23 2.0 3.7 1.8 30 2.6 44 291 3,220 436 204 66 19 1.5 5.5 1.5 31 2.3 237 1,090 322 104 1,5 5.5 Second- Runoff in Month foot-days Maximum Minlnun Moan ao re-feet Octo ber...... 138.2 12 2.C 4.46 274 Hove 2,895.4 853 1.6 96.5 5,740 DeoeBber...... 7,719 1,670 61 P49 15,310 Calendar year 1942 78,703.5 3,860 .9 216 156,100 Janu ary 22,427 5,240 40 723 44,480 Febr 11,021 727 235 394 21,860 Hare h...... '...... 2E,143 3,660 252 714 , 43,920 Apri 6, 60S 689 101 220 13,090 Bay. 3,139 183 57 101 6,230 June 1,612 170 19 53.7 3,800 July 264.1 20 l.S S.52 584 Augu 105.3 6.5 i.e 3.40 209 September ...... 65.5 5.5 .9 2.18 130 ffater .year 1942-43 ...... ,i. ... 78,131.5 5,240 .9 F14 155.000 Peak disehawje.- Sec. 23 (9 p.m.) 3,830 sec. -ft.; Jan. 21 (Si SO p.m.) 7«-640 geo.-rt.j Jan. 88 ' (12 p.m.) 4,110 see. -ft.} Jan. 30 {9 a.m.) 6,590 aec.-ft,; Bar. 9 (12 p.m.) 11,300 »ec.-ft. Time baaier Paolf1C war time, to convert oar tine to standard time, aub tract 1 hcur. FEATHER RIVER BASIN 333 Bear River near Auburn, Calif. Location.- Water-stage recorder, lat. 39°01', long. 121 °05', near south line of sec. 33 T. 14"'K., R. 8 E., 300 feet upstream from bridge on state Highway 49, 3i miles up stream from Wolf Creek, and 8 miles north of Auburn. Altitude of gage, about 1,300 feet (from topographic map). Drainage area.- 140 square miles (revised). Record available .- December 1940 tq September 1943 In reports of Geological Survey iiftSi, lyUb-iSJ, 1929-33, Incomplete (gage heights for high-water periods only) in re ports of Division of Watep Resources,' Department of Public Works, State of California. Extremes.- Maximum discharge during year, 20,600 second-feet Jan. 21 (gage- height, 13.05 reetj, from rating curve extended above 5,000 second-feet by logarithmic plotting on basis of computed flow over comble Dam 3 miles above station; minimum, 0.9 second- foot (regulated) Sept. 19-24, 26-30. 1940-43: Maximum dischaige, that of Jan. 21, 1943; minimum, that of- Sept. 19-24, 26-30, 1943. Remarks.- Records good. River receives Inflow from Yuba River Basin above station; flow regulated by storage and diversions above station for Irrigation and power development. Hating tables, water-year 1942-43 (gage height, In feet, discharge, In second-feet) (ShiftIng-control aethod used Oct. 1 to Hov. 17) Oct. 1 to Jan. 21 Jan. 22 to Sept. 30 350 4.0 1,350 0.5 26 500- 9 1.6 162 4.5 1,800 _ T 1.6 .6 35 2.6 14 1.9 234 5.0 2,320 0.0 2.7 .8 53 3.0 690 20 2.Z 324 5.5 2,910 .1 1.0 35 3.4 920 27 2.6 466 6.0 3,600 .2 1.3 133 3.8 1,190 37 3.0 655 7.0 5,280 .3 12 1.6 193 62 3.5 970 8.4 8,050 .4 18 1.9 265 Note.- Same as preceding table above 3.8 feet. Discharge, in seoond-feet. water year October 1942 to Septeaber 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June- July A««. Sept. 1 9.S 9.5 229 575 1,890 734 509 soo 552 42 4.7^ 2.2 Z 9.5 S.5 262 550 1,520 670 563 399 424 40 4.5 2.2 3 10 12 292 532 1,250 620 476 sse 374 40 3.7 2.3 4 11 9 292 528 1,110 680 472 385 360 39 2.9 S.Z 5 10 S 286 528 1,020 762 590 350 260 39 2.9 2.2 6 10 7.5 286 524 878 1,980 665 374 170 33 3.1 2.2 7 10 7.5 321 515 992 1,730 854 320 137 40 3.1 2.1 8 10 7 331 502 1,180 1,840 1,150 242 103 63 2.9 2.1 9 10 7 381 486 946 5,030 1 ,060 265 100 63 2.7 2.1 10 10 7 318 478 812 6,150 854 265 142 79 2.7 2.0 11 10 7 295 474 756 3,800 572 305 164 66 2.5 2.0 12 10 7 268 470 696 2,330 496 278 164 62 2.1 1.7 13 9.5 7 265 466 645 1,730 492 299 176 24 2.5 1.1 14 10 7 274 462 600 2,340 509 314 100 14 2.5 1.1 15 10 8.5 245 455 576 1,820 413 280 82 7.5 2.5 1.1 16 10 8.5 234 447 572 1,360 288 275 75 11 2.5 1.1 17 9 15 268 436 578 1,250 290 258 71 11 2.6 1.1 18 9 232 280 428 514 1,410 299 250 66 11 2.6 1.0 19 9 585 256 410 509 1,360 311 248 56 11 2.6 .9 20 9 580 218 481 504 1,180 317 131 56 12 2.5 .9 21 9 570 234 7,950 504 1,130 320 189 50 S.5 2.5 .9 22 9 550 242 5,390 590 1,180 380 255 51 6.5 2.5 .9 23 9 532 375 5,850 1,040 998 364 842 50 5.5 2.5 .9 24 9 510 694 2,990 908 762 428 238 50 5 2.5 .9 25 9 482 1,440 2,600 1,130 675 416 240 48 5 2.6 1.0 26 9 447 949 2,670 1,060 718 364 218 47 5 2.5 .9 27 9 417 672 2,190 966 620 314 200 46 5 2.3 .9 28 9 382 952 1,760 818 568 987 202 45 5 2.3 .9 29 9 266 1,440 1,960 - 728 690 215 45 5 8.2 3.2 30 9.5 169 880 4,670 - 914 558 208 43 4.7 2.2 1.9 31 9.S ~ 682 2,770 - 640 - 302 4.7 2.2 Seoond- __ Runoff in Month foot-days Maximum MiniBUB 11880 acre-feet October...... 895.5 11 9 9.53 S86 Nove«ber...... 5,868.0 585 7 196 11,640 DeoMber...... 14,101 1,440 218 455 27,970 Calendar year 1942 ...... 163,331.3 6,450 2.6 447 384,000 January 50,487 7,950 410 1,629 100,100 February...... 24 , 558 1,890 504 877 48,710 March...... 47,109 6,150 568 1,520 93,440 April ...... 15,941 1,150 288 531 31,620 May...... 8,685 500 181 280 17,230 June...... 4,089 532 43 136 8,110 July...... 767.4 79 4.7 24.6 1,520 August ...... 84.4 4.7 2.1 2.72 167 September...... 46.1 3.2 .9 1.54 91 Hater year 1942-43 ...... 172,031.4 7,950 .9 471 341,200 Peak discharge.- Jan. SI (6t30 p.m.) 20,600 sec. -ft.; Jan. 23 (6 a.m.) 7,130 «ec,-ft.j Jan. 30 (2i30 p.m.} 6, 100 sec. -ft. J Mar. 10 (7|30 a.m.) 7,790 see. -ft. Time baa is I Pacific war tine. To convert war time to standard tine, subtract 1 hour. 334 FEATHER RIVER BASIN Bear River near V/heatland, Calif. Location.- Water-stage recorder, lat. 39°00', long. 121°25', In sec. 3, T. 13 N., R. 5 E. f 100 feet downstream from bridge on U. S. Highway 99E,. 1 mile southeast of Wheat- land, and 6s miles downstream from Rock Creek. Altitude of gage, about 85 feet (from topographic map). 'Drainage area.- 295 square miles. Records available.- October 1928 to September 1943. Average discharge.- 14 years (1929-43), 450 second-feet. Extremes.- Maximum discharge during year, 31,300 second-feet Jan. 21 (gape-height. 16.95 feet;, of which 25,600 second-feet was In main channel and 5,700 secorfl-feet through levee break half a mile above station, determined by contracted-openirg method and other data; minimum discharge recorded, 1.3 second-feet (regulated) Avg. 29, Sept. 10. 1928-43: Maximum discharge, that of Jan. 21, 1943: no flow May 8, Sept. 18-25, 1939. Remarks.- Records good Oct. 1 to Dec. 23 and Jan. 23 to Sept. 30, except thoee for periods of no or fragmentary gage-height record, which are poor; records fair Dec. 24 to Jan. 22. River received Inflow from Yuba River Basin above gage; flow regulated by storage and many diversions above station for Irrigation and power development. Discharge, in second-feet, water year October 1942 tc September 1945 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 20 17 300 716 2,790 1,110 839 685 530 a?0 45 8 2 19 17 332 660 2,120 1,010 752 570 625 a30 45 9 3 18 81 386 618 1,750 976 > 724 535 462 27 45 5.5 4 18 102 380 611 1,540 1,000 680 520 440 3J 43 8 5 17 63 366 590 1,440 1,050 872 505 422 28 43 6.5 6 19 56 4O6 578 1,270 3,090 f730 467 310 28 41 6.5 7 19 47 531 572 1,420 2,400 a!20 505 334 27 38 8 S 18 49 484 560 1,700 2,470 fl ,020 408 f210 29 38 5.5 9 16 47 444 536 1,350 8,920 1 ,190 364 f!20 29 38 3.6 10 16 45 425 530 1,130 11,200 S88 203 f!6O 29 37 3.2 11 17 43 406 524 1,090 5,060 832 115 a7O 29 38 3.6 12 20 43 373 513 1,020 3,350 690 124 168 31 37 3.6 13 22 43 344 512 962 2,480 665 254 182 29 36 4.1 14 22 43 344 506 898 3,170 670 408 185 29 34 5.5 15 20 58 338 500 865 2,600 655 418 100 31 34 4.7 16 22 79 305 494 832 1,900 485 390 75 33 34 5.5 17 20 402 31O 482 839 1,810 476 377 37 33 5.5 18 20 966 349 464 788 1,960 485 326 42 33 4.7 19 19 819 349 459 764 1,630 476 f210 42 31 5.5 20 19 714 316 572 752 1,480 472 350 46 28 4.7 21 19 686 322 10,300 758 1.4OO 472 306 47 26 4.1 22 20 658 332 10,500 1,210 1,46O 467 302 31 22 3.6 23 20 637 1,340 9,220 1,860 1,250 462 302 > a50 38 19 2.8 24 20 616 1,590 4,620 1,350 1,070 530 326 40 17 3.2 25 20 595 1,800 2,980 1,650 982 530 f!80 49 16 3.6 26 20 S60 1,120 2,960 1,400 962 515 f!44 52 12 4.1 27 19 770 814 2,870 1,480 898 467 270 49 10 4.7 28 19 623 1,400 2,290 1,210 846 1 ,430 302 50 9 4.7 29 18 484 2,090 2,700 ,. 1,000 1 ,010 302 49 5.5, 4.7 30 18 275 1,120 8,960 _ 1,820 789 306 n 8 4.7 31 17 - 849 4,460 - 9S6 " 314 - *«, 8 ~ Seoond- Runoff in Month foot-days Maximum Minimum r*. acre-feet October...... 591 22 16 19.1 1,170 November...... 9,638 966 17 321 19,120 December. ...."...... 20,315 2,090 300 655 40,290 Calendar year 1942 ...... 253,805.5 11,800 9.5 695 503,400 January ...... 72,862 10,500 459 2,350 144,500 February ...... 36, 22S 2,790 752 1,294 71,860 March...... t ...... 70,710 11,200 846 2,281 140,300 April...... 20,433. 1,430 120 681 40,530 May...... 10,788 685 115 348 21,400 June ...... 5,093 625 170 10,100 July...... 1,135 52 27 36.6 2,250 August ...... 903 '.5 45 6.5 29.1 1,790 September...... 151.4 9 2.8 5.05 300 Water year 1942-43 ...... 243,847.9 11,200 2.8 688 493,600 Peak discharge.- Jan. 21 (9j30 o.m. ) 31.300 sec. -ft.. of which 85,600 second- fee*, waa in main channel and 5,700 second- f set through levee break half a mile upstream; Jan. S3 (It a.m.) 10,500 see. -ft.; Jan. 30 (2 p.m.) 12,800 sec. -ft. j Ma*. 6 (3 p » ) 3.440 sec. -ft.; Mar. 11 (lit SO a.m.) 13,500 sec. -ft.; Mar. 14 (11 a.m.) 3,950 sec. -ft. a Ho gage-height record; discharge estimated. f Fragmentary gage-height record: discharge computed frofc partly estimated gage heights. Note..- Daily discharge en Jan. 21 does not include flow through levee break. Time basiai Pacific war time, tc convert war tine to standard time, subtract 1 hour. FEATHER RIVER BASIN 335 Bear River Canal near Coif ax,, Calif. Location.- Water-stage recorder, lat. 39°07', long. 120°58', In sec. 28, T. 15 N., R. 9 E., just downstream from lower spillway gates, li miles downstream from diversion dam on Bear River, and 2 miles northwest of Colfax. Altitude of gage, about 1,950 feet (from topographic map). Records available.- January 1912 to September 1943. Average discharge^- 29 years (1914-43), 236 second-feet. Extremes.- Maximum dally discharge during year, 463 second-feet May 10; minimum dally, '6 second-feet Apr. 8. 1912-43: Maximum dally discharge recorded, 476 second-feet July 17, Oct. 29, 1937; no flow at times. Remarks.- Canal diverts from left bank of Bear River In sec. 22, T. 15 N., R. 9 E. water is first used to develop power at Halsey and Wise powerhouses; part of it Is then distributed for Irrigation and part Is eventually spilled into North Fork Ameri can River. Cooperation.- Records of dally discharge furnished by Pacific Gas & Electric Co. Discharge, in second-feet, water year October 1948 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 263 300 407 40S 292 432 449 445 415 BBS £96 336 2 290 295 393 3S8 287 419 407 445 444 279 3^ 303 3 214 380 395 415 318 424 445 441 447 283 298 295 4 211 315 405 428 355 388 446 446 444 246 312 268 5 226 348 397 442 361 375 422 441 444 275 292 266 6 273 359 399 441 400 34S 433 446 454 270 27S '310 7 260 352 372 441 335 363 133 443 446 314 280 312 S 233 355 405 435 349 346 3 447 450 306 277 311 9 222 355 405 444 395 258 127 452 447 2S2 E77 310 10 221 345 430 441 390 214 252 463 447 2SO 310 3$>4 11 BOB 354 443 424 395 300 437 45S 456 283 310 310 12 206 370 417 437 410 366 435 453 453 312 3^5 27S 13 SOB 408 384 442 430 3S2 441 454 455 316 an 302 14 222 328 421 425 432 333 441 460 440 319 319 296 15 222 270 436 437 438 362 446 457 448 330 3^4 296 16 184 338 434 433 435 41S 446 455 420 331 3'.4 297 17 177 364 433 433 412 395 443 452 365 299 3*3 259 IS 153 357 438 433 433 395 446 453 357 289 308 248 19 156 412 444 428 405 410 445 446 332 31S S12 250 20 264 410 413 399 487 435 443 446 279 327 319 284 21 321 417 413 191 414 415 443 452 226 306 2^4 313 22 341 420 404 80 357 400 441 452 225 310 250 334 23 344 3S2 361 167 366 441 449 452 244 344 313 403 24 344 430 334 230 353 445 450 449 328 319 3*5 278 25 346 371 350 269 359 446 44S 454 299 279 3 54 250 26 346 384 350 268 370 444 452 454 252 312 331 205 27 380 388 350 272 388 449 433 452 295 332 272 278 28 341 375 352 484 401 366 375 447 310 340 238 280 29 382 382 370 282 . 397 430 456 294 319 238 270 30 343 387 401 241 _ 377 441 459 326 323 311 262 31 374 - 409 225 - 441 447 295 343 » ~ Seoond- Runoff in Month foot-days Maximum Minimum Mean acre-feet October ...... 8,206 374 152 265 16,280 November ...... 10,951 430 27( 366 21,720 December ...... 12,365 444 334 399 24,530 Calendar year 1942 ...... 127,472 464 G 349 252,800 January ...... IX 273 444 80 364 22,360 February ...... 10*737 457 CDOQm . 383 81,300 March...... 11,974 44 9*1 2i^ 386 23,760 April...... 11,902 452 3 397 83,810 .May 13,977 463 441 451 27,780 June ...... 11,242 456 22S 375 22 F30Q July...... 9,422 344 S4 304 IS, 690 August ...... 9,569 354 26C 309 16« 980 September...... 8,708 403 205 £90 17,270 Water year 1942-43 ...... 130,326 463 3 357 258,500 Time tiaalat Pacific mar time. To convert war time to gtandard time, subtract 1 hour. 336 AMERICAN RIVER BASIN North Fork American River at North Fork Dam, Calif. Location.- Water-stage recorder above spillway of North Fork Dam, lat. 38°56', long. 121"OI', In SEi sec. 30, T. 13 N., R. 9 E., 2 miles upstream from M'.ddle Fork and 4 miles northeast of Auburn. Datum of gage is 715.0 feet above mean sea level {levels by Corps of Engineers, U. S. Army). Drainage area.- 343 square miles. Records available.- October 1941 to September 1943. Extremes^- Maximum discharge during year, 42,600 second-feet Jan. 21 (gage height 9.53 reetjfrom rating curve extended above 22,000 second-feet on basis of computed flow over spillway of dam by Craager's method; minimum, 47 second-feet S^pt. 27-30*. 1941-43: mxlmum discharge, that of Jan. 21, 1943; minimum, les,^ than 5 second-feet momentarily on Aug. 4, 1942, caused by closing of gatas In dam. Remarksj.- Records excellent. Some storage and diversions above station. Rating table,.Miter year 1948-43 (gage height, in feet, and dlarsharge, in second-feet) (Backwater corrections applied May 31} 0.2 40 0.9 460 3.0 3,080 5.4 12,500 .3 75 1.3 840 3.4 4,040 6.0 15,800 .4 120 1.7 1,270 3.8 5,280 6.6 19,500 .5 175 2.1 1,740 4.2 6,760 .7 310 2.5 2,280 4.8 9,380 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 58 58 568 1,250 2,840 1,340 1,780 1,900 2,540 254 88 58 2 53 58 795 1,130 2,270 1,270 1,840 2,200 1,730 247 84 58 3 58 142 1,020 940 1,910 1,230 1,950 1,790 1,100 240 84 54 4 53 164 586 830 1,700 1,360 1,900 1,900 860 234 84 54 S 54 98 452 740 1,630 1,920 2,380 1,700 770 287 84 54 S 54 75 444 660 1,460 3,570 2,030 1,680 690 280 84 54 7 54 68 487 595 1,570 3,010 2,010 1,570 640 280 84 54 8 54 68 420 550 1,670 3,360 2,490 1,380 631 208 80 54 9 54 68 373 514 1,450 9,930 2,040 1,270 631 194 80 54 10 54 63 359 487 1,310 12,600 1,730 1,290 586 188 80 54 11 58 63 345 460 1,260 7,160 1,540 1,270 577 182 75 58 12 68 68 345 436 1,230 4,750 1,550 1,140 532 175 75 58 13 64 64 338 412 1,190 3,820 1,680 1,050 496 170 72 53 14 61 68 345 404 1,200 4,100 2,000 984 45E 158 78 58 15 61 111 33S 396 1,200 3,340 2,150 910 436 158 78 53 16 61 175 331 388 1,190 2,720 8,380 820 436 168 78 58 17 61 1,080 , 310 373 1,160 2,500 2,800 760 488 148 6B 54 18 58 4,860 289 331 1,150 2,340 1,990 750 436 148 68 54 19 S3 1,610 275 317 1,130 2,060 1,920 790 420 136 64 54 20 58 720 S61 510 1,830 1,900 1,740 790 380 136 64 54 21 58 1 452 275 19,500 1,290 1,790 1,570 860 359 131 64 58 22 58 369 275 11,500 1,780 1,770 1,870 900 338 186 64 54 23 58 331 1,660 10,800 1,630 1,620 1,970 1,180 310 116 64 60 24 58 566 5,980 5,570 1,600 1,550 8,150 1,800 896 111 64 SO 25 58 . 550 8,740 5,670 1,780 1,570 1,980 1,180 888 111 64 50 26 SB 396 1,670 5,080 1,690 1,600 1,550 1,180 075 106 64 50 27 58 702 1,870 3,100 1,560 1,640 1,440 1,070 868 108 ' 64 60 .28 58 930 8,160 2,600 1,440 1,780 3,690 1,020 861 98 61 50 29 58 631 2,640 8,640 8,580 2,520 890 868 93 58 , 60 30 58 577 1,770 6,270 2,460 1,820 800 868 93 58 50 31 58 1,460 4,100 1,910 1,090 88 58 Second- Runoff in Month foot-days Maxima Misiww Mean ao re-feet Octo her...... 1,802 68 54 68.1 3,670 Hove 14,985 4,860 68 600 89,780 Deoe bar: ...... 50,581 5,980 861 986 60,660 Calendar year 1942 485,649 13,700 54 1,161 840,300 Janu ary 83,953 19,600 517 8,708 166,500 Febr 48,780 8,840 1,130 1,686 84,730 Marc 94,510 12,600 1,830 5,048 187,100 L...... 39,580 3,090 1,440 1,084 116,100 as? 57,834 8,800 750 1,801 73,660 June f 1 17,696 8,640 881 690 55,100 July 4,870 884 66 160 9,860 Augn St...... 8,817 88 68 71.5 4,400 September...... 1,684 56 50 64.1 3,280 Hat«»r year i94B<-43 ...... 591,818 19,500 50 1,073 776,600 Peajc. .discharge.- Jan. 81 f6«SO p.a.) 42 r 800 MS. -ft.; Jan. 83 < 6 a.m.) 13.00C see. -ft. j Bar. 10 sec.-ft. Tlae bMlfft Paeifie war fcinw. To convert war tlmt to »tand»rt tine, *ubti«ct 1 hour. AMERICAN RIVER BASIN 33? North Pork American River at Rattlesnake Bridge, Calif. Location.- Water-stage recorder, lat. 38°49', long. 121°06', In SWi sec. 9, T. 11 N., R. 8 E., 800 feet downstream tram Rattlesnake Bridge, 3 miles downstream from Pilot Creek, and 6 miles south of Auburn. Datum of gage Is 343.65 feet above mem- sea level (rlver»-proflle survey). Jralnage area.- 999 square miles. Records available.~ November 1930 to September 1937, December 1938 to September 1943. Average discharge.- 10 years (1931-37, 1939-43), 2,518 second-feet. Extremes.- Itelmum discharge during year, 94,000 second-feet Jan. 21 (gage height, 26.5 feet), from rating curve extended above 27,000 second-feet; minimum, 105 second-feet Sept. 6. 1930-43: Maximum discharge, that of Jan. 21, 1943; minimum, 6.5 second-feet (regulated) Aug. 15, 1931. Remarks.- Records good October to December and April to September, fair January to March. Storage, diversions, and regulation above station; low flow greatly affected by diversions into North Fork ditch and Inflow from Bear and Yuba River Baslrs through'South Canal of Pacific Gas & Electric Co. Discharge, In second- feet, water year October 1642 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Atif. Sept. 1 173 318 2,040 3,870 6,770 3,890 5,600 6,220 9,710 1,050 r?a 123 2 161 362 2,160 3,600 6,710 3,790 5,890 7,520 6,910 1,010 SB6 120 3 170 617 4,130 3,100 4,940 3,720 6,270 5,930 3,980 9S7 £20 117 4 156 782 2,300 2,740 4,530 3,910 6,220 6,110 3,160 936 flO ' 114 5 152 511 1,760 3,520 4,620 5,190 7,"250 5,530 2,780> 927 E04 114 6 165 476 1,640 2,290 4,180 8,260 6,450 5,480 2,510 891 I "4 112 7 149 478 1,700 2,080 4,280 7,790 8,160 5,260 2,510 *B7 f>4 114 a 14S 446 1,480 1,940 4,800 7,920 6,890 4,660 2,540 873 1«6 112 9 143 394 1,360 1,840 4,170 24,100 6,000 4,150 2,600 794 181 112 10 158 464 1,340 1,770 3,920 38,600 5,100 4,180 2,830 738 174 112 11 168 469 1,300 1,700 3,830 22,600 4,860 4,300 £,610 668 169 112 12 190 430 1,880 1,640 3,740 14,200 4,810 3,940 8,370 ^868 163 138 13 183 431 1,270 1,590 3,720 11,100 6,260 3,640 8,130 629 168 117 14 190 499 1,280 1,650 3,740 11,200 6,230 3,360 1,970 574 166 lie 15 186 484 1,310 1,490 3,770 9,850 6,700 3,140 1,820 556 156 114 16 230 426 1,880 1,580 3,770 8,070 7,270 2,870 1,920 560 164 114 17 818 2,150 1,260 1,600 3,740 7,600 7,000 2,660 1,870 614 166 127 18 178 16,200 1,310 1,380 3,960 7,100 6,600 2,660 2,010 484 152 117 19 234 6,720 1,170 1,290 3,800 6,260 6,310 2,710 2,010 460 1*8 11S 20 274 2,740 1,130 1,620 3,590 5,760 6,820 2,770 1,770 438 350 118 21 860 1,780 1,1*0 38,600 3.8*0 5,440 5,170 3,030 1,680 430 1.50 120 22 S70 1,460 1,130 41,400 4,750 6>390 6,070 f,250 1,440 416 160 112 23 376 1,360 3,440 28,900 5,020 5,000 6,460 ,860 1,210 410 148 166 24 372 1,410 19,900 16,100 4,430 4,930 7,160 4,280 1,120 380 1*4 136 26 384 1,820 9,160 10,200 4,720 4,980 6,470 4,360 1,060 346 142 111 26 31B 1,590 6,870 8,320 4,500 5,100 5,290 4,230 1,010 352 140 112 27 391 i,96o 4,150 8,260 4*80 5,290 4,860 3,900 1,010 314 138 114 28 380 3,450 5,670 7,060 4,010 6,480 10,900 3,910 990 294 136 118 29 372 2,280 7,400 6,770 6,640 7,690 3,490 1,060 278 131 190 30 332 1,950 5,370 13,400 7,310 5,890 3,060 1,070 263 327 131 31 340 4,480 9,470 5,910 4,060 282 125 Runoff in Month ££& "^"o" MinlBUB Mean ao re-feet Ooto ber 7,817 391 143 242 14,910 Hove 54,337 18,200 318 1,811 107,800 Deoe ber...... 99,660 19,900 1 130 3,216 197,700 Calendar year 1942 ...... 1,299,679 39,100 130 3,561 2,578,000 Janu&ry. . . . 229,440 41,400 1,290 7,401 468,100 Febr 120,460 6,770 »,*00 4,302 298,900 Marc 271,160 £6,600 3,720 8,747 687,800 1...... 188,640 10,900 4,810 6,286 374,910 &? 128,520 ,7,520 2,660 4,14« a*.Mi Jane 71,120 9,710 990 t.371 141,100 July 18,297 1,050 ws 590 5*, MO Augu St...... 5.132 238 126 lH 10,180 Sept ber...... 3,676 196 111 119 7,090 Water year 194*49 ...... 1, 197 .749 41.400 111 5,282 2,376,000 ,,SSSL&iSSSSSmsr rfav.-M (18 » ) *M«» eee.-ft.; Dee. 84 (7 a.».) 50.200 ««c..rt.l Jfcr, 21 . , --. ..,--- o.-ft (8 a,».) 36,600 «.-«. j K«r. 10 (9~e.».) 40,900' ,,- Apr. 28 (ISiSO f.«.) 17, 0 "*» Pacific « the*. To eonvert WWP time te »t«nd«r<3 time, sxibtwct 1 hour. 338 AMERICAN RIVER BASIN American River at Fair Oaks, Calif. Location.- Water-stage recorder, lat 38°38'15", long. 121015'55", Jus", upstream from highway bridge at Fair Oaks, Sacramento County, and 10 miles downstream from South Fork. Altitude of gage, about 72 feet (from topographic nap). Drainage area.- 1,921 square miles. Records available.- November 1904 to September 1943 (at several sites near highway bridge). Average discharge.- 38 years (1905-43), 3,782 second-feet. ISctreagg.- Maximum discharge during year, 136,000 second-feet Jan. 82 (gage height, 31.00 feet); minimum, 146 second-feet Sept. 26. 1904-43: Maximum discharge, 140,000 second-feet rb.r. 25, 1928 (gage height, 31.45 feet, present datum), from rating curve extended above 75,000 second-feet; flood of Ifer. 19, 1907 reached a stage of 31.4 feet, present datum (Ulschar^e probably about same as that of ifer. 25, 1928); minimum, 3.6 second-feet (regulatel) Aug. 16, 1924. Remarks.- Records good October to July, fair August and September. Flow regulated by storage, many diversions, and power plants above station. Some Inflow from Bear and Yuba River BaaIns. Discharge, la second-feet, water year October 1942 to September 1943 0* Oat. Kov. Dec, Jan. Feb. Mar. Apr. May June Jvly Aug. Sept. 1 838 503 2,970 6,460 12,600 6,270 8,680 10,300 16,200 8,180 488 278 2 268 483 2,590 4,990 10,200 5,980 9,070 13,200 14,100 8,090 467 283 3 240 670 5,860 4,490 8,640 5,790 9,700 10,500 7,220 1,970 440 276 4 233 1,160 3,660 3,920 7,600 6,220 9,780 10,400 5,660 1,940 418 278 S 223 786 2,710 3,610 7,440 8,970 11,20O 9,490 4,830 1,940 415 878 6 218 660 2,390 3,540 6,900 18,900 10,700 9,210 4,410 1,860 396 275 7 221 614 8,710 3,070 6,790 15,600 9,780 9,020 4,340 1,930 375 248 8 207 606 2,860 2,870 7,960 15,800 10,600 8,190 4,360 1,860 383 838 9 221 546 2,100 2,670 6,840 44,000 10,000 7,220 4,430 1,740 375 838 10 233 688 2,000 2,650 6,300 73,700 8,190 7,160 4,310 1,630 356 228 11 273 (32 1,940 2,480 6,080 38,300 7,660 7,400 4,830 1,460 346 843 12 300 tee 1,880 2,400 6,880 24,000 7,400 6,920 4,090 1,420 345 866 13 340 669 1,860 8,310 5,700 18,900 7,960 6,370 3,830 1,370 351 295 14 364 628 1,850 2,230 6,640 18,600 9,870 5,940 3,640 1,860 364 854 IS 340 680 1,860 2,190 5,720 16,700 10,500 5,440 3,290 1,190 348 26S 381 730 11,800 4,970 3,340 1,170 346 290 16 1,860 2,220 5,720 13,700 11,200 4,660 3,410 1.180 239 299 IT 410 1,970 1,810 2,220 6,660 12,700 4,490 3,^40 286 18 337 83,200 1,780 2,080 6,510 12,600 10,600 1,040 333 19 312 13,900 1,730 1,810 5,400 10,700 10,300 4,640 3,610 1,000 330 279 20 368 4,590 1,680 2,020 5,440 9,780 9,680 4,640 3,440 962 318 864 21 407 2,930 1,680 38,400 6,770 9,160 8,320 5,040 3,170 920 315 230 22 424 2,380 1,660 73,800 7,200 9,390 9,340 5,410 3,000 , 944 - 321 838 23 463 2,060 3,640 46,700 8,440 8,440 10,200 6,370 2,600 902 332 200 24 515 2,060 89,300 27,600 7,O60 8,060 11,700 7,880 2,390 860 334 843 25 638 2,440 16,600 17,400 9,090 8,120 10,800 7,440 2,240 796 316 206 26 687 2,480 9,140 13,900 7.900 8,860 8,960 7,380 2,140 750 303 180 27 487 2,660 6,870 lfi.100 7,680 8,470 7,900 6,790 2,070 726 303 187 28 638 4,880 6,660 18,000 6,660 8,680 16,700 . 6,980 2,040 686 281 191 29 638 3,820 11,100 11,800 9,730 14,300 6,340 8,120 630 2B1 208 30 499 2,760 7,820 83,100 11,900 9,990 6,870 2,170 580 278 209 31 496 6,200 18,900 9,390 6,880 530 275 Seoond- Runoff in Month foot-days Maxima Minima Mean acre-feet Ooto bar...... 11,168 687 807 360 22,160 Van her...... 82,082 83,200 48S 2,736 168,800 Deoeaber...... 147,470 89,300 1,660 4,757 298,600 Calendar year 1948 ...... 2,036,862 64,600 207 5,579 4,039,000 JannAry 386,870 73,800 1,610 11,480 706,900 Febr 197,460 18,600 5,400 7,062 391,700 arc r7::::::::::::::::::::::::::::::::::: 476,710 73,700 5,790 16,880 045,600 £* 301,900 16,700 7,400 10,060 698,800 821,370 13 ,20O 4,490 7,141 439,100 & 130,110 16,200 2,040 4,337 ,288,100 July 39.463 2,180 630 1,273 78>860 Aocn 10361 488 875 960 21,640 Septeaber...... 7,438 299 180 248 14.740 Hater yeari«4»-43 ...... 1,981,888 73,800 180 6,430 3,931,000 .Peak dlaoharate,- 1lot. 18 (6:SO p.m.) 36,000 ae9.-ft.| Be*. 84 (12 .) 43,400 see. -ft.} Ja»» 88 USiW a.»VnSi,OCX > eo.-ft.j Jan 23 (12 .) 86,000 ».-«.} Jan. 30 (6 p.».j 31,900 aee.-ft.t Mar. 10 (9 ».». ) 88 ,800 eo.-ft. tte» »a»Ui Peel rte war tfcm. Te convert maf time to etandard tlae, mtotnef- 1 how. AMERICAN RIVER BASIN 339 American River at Sacramento, Calif. Location.- Water-stage recorder, lat. 38°34'05", long. 121°25'20", at H Stre3t Bridge, 3ust east of Sacramento, Sacramento County, 6fc miles upstream from mouth. Zero of gage is set to datum of Corps of Engineers, U. S. Army. Records available.- July to October 1921, October 1929 to October 1932, and May 1934 to September 1943 (low-water periods only) in reports of Geological Survey. 1926-43 (gage heights for high-water periods only) in reports of Division of Wate" Resources, Department of Public Works, State of California. Extremes.- Minimum discharge during periods October to December 1942 and May to September 1543, 155 second-feet Sept. 27 (gage height, 18.69 feet). 1921, 1929-32, 1934-43: Minimum discharge recorded, 2.1 second-feet AUT. 14, 1931. Remarks.- Records good except those for period of backwater or no Rage-height record, which are fair. Flow regulated by reservoirs, many diversions, and power plants above station. Some inflow from Bear and Yuba River Basins. Cooperation.- Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California. Bating tables for periods Oct. 1 to Dee. 23, 1942, and May 6 to Sept. 30, 1943, except 'period of backwater (gage height, In foot, and discharge. In second-feet) Oct. 1 to Dee. 23 Hay 6 to Sept. BC 170 20.3 S20 24.0 6,020 18.7 158 20.5 1,240 2S.O 7,600 19.3 260 80.5 1,000 26.0 6,600 18.8 195 21.0 1,686 se.o 9,860 19.5 340 21.0 l.,460 28.0 8,720 IB.9 240 22.0 2,695 2T.O 12,500 19.7 440 22.0 2,640 27.0 11,100 19.3 464 23.0 3,940 2f.S 16,000 20.0 606 25.0 3,700 28.0 14,800 80.0 880 24.0 6,490 Discharge, in second-feet, water year Octobar 1942to September 1943 Das Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 246 52S 2,990 010,300 14,100 1,980 557 294 S872 480 2,700 / 013,000 15,700 1,900 534 294 3 246 605 4,920 010,200 7,4SO 1,770 499 283 4 242 1,030 3,620 010,000 5,600 1,720 452 278 5 222 892 2,870 09,800 4,790 1,720 452 278 fi 218 691 2,460 9,500 4,330 1,670 435 256 7 222 624 2,760 9,230 4,230 1,720 418 278 202 618 2,340 8,450 4,210 1,670 423 245 9 202 581 2,180 7,370 a4,300 1,550 406 245 10 230 605 2,080 7,040 a4,250 1,440 389 231 254 63S 1,990 7,370 a4,160 1,300 378 251 282 599 1,950 6,930 a3,950 1,230 372 272 308 575 1,890 6,310 a3,700 1,190 372 305 618 1,8SO " 5,820 a3 ,400 1,120 384 267 15 365 712 1,900 5,350 a3,200 1,060 378 256 Ifi ' 395 670 1,900 4,910 a3,250 1JO40 372 272 17 445 1,290 1,860 4,470 a3,350 1,030 367 305 18 375 14,300 1,820 4,420 a3 ,450 966 361 » 294 19 355 14,700 1,770 4,420 a3 ,500 919 356 262 20 375 4,940 1,700 4,580 a3,300 880 333 267 21 430 3,240 1,«90 4,810 a3 ,050 843 333 213 22 445 2,560 1,670 * 5,290 2,780 861 328 249 512 2,810 2,670 6,050 2,430 861 339 213 24 523 2,160 7,060 2,200 830 36"? 231 25 563 2,460 7,250 2,040 776 339 2OO 599 7,210 1,940 740 328 180 523 8,530 _ 6,640 1,870 716 028 169 2ft 599 4,400 _ 6,790 1,830 674 322 184 575 3,660 _ 6,210 1,SSO 615 316 188 30 551 2,900 _ 5,450 1,960 60S 311 188 31 534 - 6,290 ~ 551 305 - Second- Runoff in Month foe t-days Maximum Minimum Mean acre-feet October...... Hove 74,516 14,700 480 147,800 Dece;aber 1-23 ...... 53,810 4,920 1,670 2*3*0 106,700 Calendar year 1942 ...... _ _ . . _ * ~ ~ May...... June * 126,220 15,700 1,830 4,2T7 250,400 July 35,945 1,980 551 - i.ieo 7Z.300 Augu St...... 11,854 557 305 3F2 23,510 September...... 7,444 305 169 14,760 Water year 1942-43 ...... - _ _ _ a Bo gage-height record; discharge computed on basis of records for station at Fair Oaks, c Backwater fren Sacramento River. TSae baal Pacific-war time. To convert nar time tc standard time, subtract 1 hour. 340 AMERICAN RIVER BASIN Middle Fork American River near Auburn, Calif. Location.- Water-stage recorder, lat. 38°55», long. 121°00', In NWi sec. 5, T. 12 N., R. " 'B., at Mountain QuarryI i. Jf Co.'swu» a plant,I^XBUIU, 1^7JL » I milesUU..A.OO upstreamtlpoul OCUli from.L.ixrm incutFU1UU.U1 1 and_3iculu *Jfi milesJu.L-i.t7d northeast of Auburn. Datum of gage Is 568.5 feet above mean sea level (from river- profile survey). Drainage area.- 619 square miles. Records available.- December 1930 to September 1943. October 1911 to December 1930 at site naif a mile downstream. Average discharge.- 32 years, 1,396 second-feet. Extremes.- mxlmui discharge during year, 58,000 second-feet Jan. 21 (gage height, 28.0 feet}, from rating curve extended above 32,000 second-feet by logarithmic plotting; minimum, 79 second-feet Sept. 25. 1911-43: Maximum discharge, about 62,000 second-feet Mar. 25, 1928 (gage height, 35.6 feet, former site and datum; 33.4 feet, present site and datinr,. from floodmarks); minimum, 20 second-feet Sept. 6, 1931, Sept. 19, 1934. Remarks.- Records good. Small storage reservoirs and diversions above station. Rating tables, water year 1842-43 (gag* height*la feet, and discharge, la second-feet Got. 1 to Hap. 10 Mar. 11 to Sept. 30 1.1 . 84 2.4 260 8.0 2,920 1.4 66 3.5 448 1.2 94 2.8 348 10.0 4,040 1.6 87 4.0 600 1.4 114 3.2 452 12.0 7.800 l.S 110 6.0 1,015 1.6 136 3.6 680 14.0 ujwo 2.0 1ST 6.0 1,529 1.8 160190' 4,0 736 16.0 16,000 2.2 166 7.5 2,490 2.0 5.0 1,190 18.0 21,100 2.6 23* 9.0 3,740 2.2 225 6.5 1,965 19.0 24,000 3.0 318 10.0 4.940 Hote.- Same as preceding table above 1O feet. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan, Feb.1 Mar.. Apr. May June July Aug. Sept. 1 98 95 1,200 2,200 4,060 2,200 3 ,350 4,250 7,750 719 223 106 2 97 95 1,520 2,050 3,400 2,140 3 ,620 5,120 4,560 683 212 105 3 95 162 2.32O 1,790 2,990 2,100 3 ,890 3,810 S,570 651 207 103 4 94 236 1,370 1,600 2,700 2,370 3 ,970 3,930 1,960 655 198 102 5 93 163 1,010 1,460 2,700 3,940 4 ,730 3,510 1,660 632 192 102 6 92 136 960 1,320 2,460 6,750 3 ,920 3,560 1,510 632 187 100 7 91 123 897 1,810 2,600 5,680 4 ,090 3,320 1,510 651 162 99 8 91 117 798 1,130 2,700 6,130 4 ,680 2,960 1,590 604 179 99 9 90 116 727 1,070 2,420 16,800 3 ,750 2,600 1,660 568 174 98 10 90 116 707 1,020 2,800 21,700 3,220 2,630 1,600 621 169 _ 98 11 95 116 675 9S2 2,190 12,200 2,870 2,70? 1,680 497 163 192 12 112 112 667 938 2,120 8,160 Z ,920 2,470 1,610 491 157 llfr 13 111 109 669 902 2,090 6,680 3 ,280 2,260 1,280 470 164 97 14 107 110 671 684 2,120 6,860 4 ,110 2,070 ItlSG 439 148 95 15 108 146 699 884 2,160 5,880 4,390 1,850 1,080\ 429 144 92 16 112 266 675 879 2,160 4,820 4 ,860 1,600 1,160 424 141 91 17 112 1,230 655 848 2,170 4,440 4 ,670 1,490 1,240 403 140 90 18 106 10,700 632 762 2,120 4,120 4 ,250 1,450 1,370 360 138 eg 19 104 3,750 see 719 2,050 3,700 4 ,110 1,590 1,370 371 136 89 20 103 1,610 576 1,050 2,200 3,360 3,740 1,650 1,200 361 134 86 21 102 1,060 584 24,400 2,310 3,230 3,320 1,930 1,080 342 131 87 22 97 643 566 20,200 3,040 3,210 3 ,930 2,100 930 352 129 85 23 96 762 2,460 16,800 3,160 2,980 4 ,390 2,660 787 347 127 84 24 94 826 12,500 9,010 2,740 2,800 4 ,910 2,960 755 320 126 82 25 94 , 1.120 5,28O 6,120 2,840 2,880 4,270 3,010 723 305 124 80 26 95 906 3,120 4,830 2,650 3,000 3 ,340 2,960 691 298 122 83 27 99 1,390 2,420 4,800 2,440 3,190 3 ,130 2,690 691 286 119 85 28 97 1,960 3,090 3,920 2,300 3,360 1 ,960 2,740 691 268 116 87 29 95 1,270 3,920 3,820 .. 4, 160 4 ,760 2,380 735 264 113 88 30 94 1,160 8,960 7,180 _ 4,260 3 ,560 2,020 743 244 110 86 31 93 - 2,470 5,570 - 3,530 - 3,110 - 254 109 - Second- Runoff in Month foct-days Maximum Minima Mean acre-feet October...... 3,067 112 90 98.6 6,060 November...... 30,794 10^,700 95 1,076 61,080 December ...... 57,386 12,500 566 1,861 113,800 Calendar year 1942 777,573 20,900 90 2,130 1,542,000 January 130,348 24,400 719 4,206 558,500 February...... 71 ,090 4,050 2,O50 2,539 141,000 March 166,620 21,700 2,100 6,376 330,500 April...... 121 ,990 7,960 2,870 4,066 242,000 May...... 83,290 5,120 1,480 2,687 165,200 June ...... 47,166 7,760 691 1,572 93,560 July...... 13,830 719 234 446 27,430 August ...... 4,703 223 109 162 9,330 September...... 2,810 116 80 93.7 5,570 Water year 1942-43 ...... 733,084 24,400 ,80 2,008 1,464,000 Peak, discharge.- HOT. 18 (1 D.m ) 14.900 see.-f%.: Dee. 24 (4i30 a .a.) BO .500 see. -ft.: Jan. 21 war tine. To convert tor time to standard time, subtract 1 hour. AMERICAN RIVER BASIN 341 South Fork American River near Kyburz, Calif. Location.- Water-stage recorder, lat. 38°46', long. 130°19', in Sk sec. 29, T. 11 N., R. 15 E., beside Lincoln Highway, 0.5 mile downstream from Silver Fork of South Fork and 2 miles west of Kyburz. Altitude of gage, about 4,030 feet (from topographic map). Drainage area.- 196 square miles. gecords available.- August to December 1907, October 19S2 to September 1943. Average dlschargeT- 21 years (192S-43), 372 second-feet, combined flow of South Fork American Rrver near Kyburz and El Dorado Canal. Extremes.- Maximum discharge during year, 5,200 second-feet Jan. 21 (gage height, 7.10 feet): minimum, 0.6 second-foot Oct. 20. ., =.- 1922-43: Maximum discharge, 9,700 second-feet Dec. 11, 1937 (gage heifht, 8.55 feet), from rating curve extended above 4,000 second-feet on basis of velocity-area studies; minimum, 0.3 second-foot Nov. 9-11, 1929. Remarks.- Records good except those below 5 second-feet, which are fair. Flew regulated by storage and diversions. (See records for El Dorado Canal, which diverts half a mile above station). Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., Obtained in connection with a Federal Power Commission project. Rating tables, wter year 1942-42 (gage height, In feat, and discharge, in seeord-feet) Out. 1 to Jan. 21 Jan. 28 to Sept. 30 1.0 0.5 ?.S 80 4.8 978 1.1 1.0 2.0 81 3.8 398 1.2 2.0 2.8* 129' 6.0 1,420 1.2 2.0 2.3 94 4.0 634 1.4 6 2.9 192 6.8 1,980 1.4 6 2.6 148 4.5 978 1.6 14 3.2 272 6.0 2,710 1.6 16 2,9 316 1.8 26 3.6 378 6.6 3,660 1.6 31 3.2 298' 2.O 43 4,0 688 Sote.- Same aa preceding table above 4.B' feet. Discharge, in second- feet, water year October 1942 to Septenber 1943 Bay Oct. Hov. Dec. Jan. Feb. Mar. Apr. Ifey June July Aug. Sept. 2.5 2.5 209 325 338 810 2,ieo 3,160 410 1.8 4.4 3.1 27 186 313 331 952 2,110 1,800 376 1.8 4.4 1 3.4 32 251 153 296 362 S99 1,860 1,340 366 1.7 8 4 2.5 3529' % 97 145 292 387 1,010 1,800 1,140 373 1.8 4.4 8 3.6 47 138 319 523 1,04O 1,670 975 373 2.0 4.0 6 3.3 28 26 113 292 548 999 1,700 930 376 2.4 4.0 7 2.5 26 14 100 313 491 1,120 1,610 922 359 2.0 3.4 8 2.9 SB 16 94 892 743 1,180 1,490 342 1.5 4.4 9 2.9 29 2$ 83 328 1,630 938 1,320 281 8.0 4.2 10 2,4 08 23 77 338 1,910 830 1,470 866 238 . 4.6 4.4 11 4.8 28 30 65 328 1,280 762 1,460 886 229 3.6 4.4 12 2.5 27 56 336 1,020 816 1,350 803 219 3.8 4.4 2.7 28 S3 960 1,040 1,210 696 199 3.0 4.6 1.9 28 18 54 362 93S 1,200 1,090 669 192 3.2 8 158 1.9 58 14 55 373 796 1,280 960 640 185 3.8 4.8 16 1.3. 52 15 52 391: 709 1,430 844 659 170 3.4 4.8 17 .9 223 14 32 387 896 1,460 789 v 709 144 3,0 4.6 id .8 1,480 8.5 84 387 538 1,480 789 776 130 3.0 4.8 19 .7 354 2.9 126 380 4S1 1,470 381 816 123 3.6 4.8 20 .9 188 1*6 137 414 469 1,330 872 782 117 3.0 3.6 21 1.7 164 6 2,310 426 460 1,300 1,020 729 146 3.0 4.6 22 1.8 153 39 1,550 460 523 1,510 1,110 584 115 3.8 4.4 23 1.8 168 603 1,360 414 548 1,780 1,340 500 91 3.2 4.4 24 1.9 202 1,110 789 398 568 1,800 1..510 486 71 2.6 4.8 25 1.8 183 420 589 391 646 1,650 1,830 384 64 3.6 4.6 26 1.3 54 869 528 362 696 1,380 1,510 365 51 16 4.6 27 1.2 167 ' 248 469 352 762 1,400 1,700 365 37 13 4.4 2.7 133 340 406 342 858 seo 82 5 4.4 2.0 83 304 ' 391 983 1,760 1/490 406 13 4,6 4>e 50 2.0 74 251 398 810 1,610 1,490 418 5.8 4,2 4.6 31 2.0 229 355 742 2,510 2.2 4,2 Seoond- Mean *»*>** in Month foot-days Max t jw1* Minimum *9an acre-feet Octo 67.5 4.8 0.7 2.18 134 Novel her...... 4,053.5 1,480 2.6 136 6,040 Deoeinber...... 4,823.0 1,110 1.6 156 9,670 Calendar year 1942 169,980.7 2,970 .7 466 337,100 Janttary » 11,142 2,310 32 359 82,100 Febr 9,941 460 292 355 19,720 Marc h...... 22,645 1/910 331 730 44>920 *J»ri i...... 39,236 8,900 762 1,308 77,820 Ifey. 43,918 2,210 789 1,417 87,100' June 25,038 3,160 358 835 49,660 July 5,813.T 410 2.2 188 11,6SO Augu 116.5 16 1.5 3.7? 231 Septsaber...... 134.0 5 3.4 4.47 266 Rater year 1942-43 .:...... 166,925.2 3,160 , .7 467 331,100 Peak discharge.- Jan. 21 (6 D.m.) 8.2OO see. -ft.; Apr 28 (5 a.m.) 4,440 sec. -ft.; Ha" 1 (10 p.m.) 2,sea sec.-ft.j , $ms 1 (9 a.m.) 4,110 eeet-ft. Time baaisi Pacific war tJne. To convert war time to atandard time, subtract 1 boor. 342 AMERICAN RIVER BASIN South Fork American River near Camlno, Calif. Location.- Water-stage recorder, lat. 38°46', long. 120°42', In SWi sec. 25, T. 11 N., RTTTTS., 300 feet upstream from Iowa Canyon Creek, 1 mile downstream from Intake of American River flume, and 3 miles northwest of Camlno. Altitude of gage, about 1,640 feet (from topographic map). Drainage area.- 497 square miles. Records available.- October 19E2 to September 1943. Average aiscnarge.- 21 years, 885 second-feet, combined flow of South Fork American River near uamino ana American River flume. Extremes.- Maximum discharge during year, 23,100 second-feet Jan. 21 (gage height, 20.7 reet); minimum, 1.9 second-feet Nov. 12-14. 1922-43: Maximum discharge, 34,400 second-feet Dec. 11, 1937 (gage height, 25.5 feet, from floodmarks In gage house), from rating curve extended above 14,000 second- feet on basis of velocity-area studies; minimum, 1.2 second-feet Aug. 24, 1931. Remarks.- Records good. Flow regulated by four reservoirs and several diversions above station. (See records for American River flume, and El Dorado Canal.) Cooperation.- Water-stage recorder graph, furnished by Pacific Qas ft Electric Co., ob- tainea in connection with a Federal Power Commission project. Rating tables, water year 1942-43 (gage height, In feet, and discharge. In second-feet) Oct. 1 to Jan. 21 Jan. 22 to Sept. 30 156 8.0 2,420 O.S 6 3.CT 216 7.0 1,880 3.0 216 9.0 3.220 .7 11 3.5 308 8.0 2,580 .9 12 3.5 304 10.0 4,250 1.0 21 4.0 432 9.0 5,380 1.0 20 4.0 416 11.0 5,350 1.5 49 4.5 588 10.0 4,300 1.3 36 4.5 660 12.0 6,650 2.0 90 5.0 788 11.0 5,360 1.6 56 5.0 746 14.0 9,400 2.5 144 6.0 1,280 1.9 81 6.0 1,200 16.0 13,000 Mote.- Same as preceding bable aboTe Z.Z 109 7.0 1.750 11.0 feet. Discharge, In second-feet, water year October 1942 to September 1943 Day Oct. NOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 13 32 448 978 2,030 1,280 2,170 3,880 7,200 702 71 11 2 10 18 911 876 1,750 1,260 2,500 4,460 3,660 651 70 12 3 a 24 1,200 722 1,550 1,260 2 ,590 3,480 2,400 613 49 12 4 5 38 550 668 1,430 1,510 2,680 3,530 1,950 617 35 13 5 3.6 11 411 619 1,480 2,530 2,960 3,160 1,690 613 21 17 6 3.7 6 366 544 1,370 3,610 2 ,510 3,280 1,550 651 16 11 7 3.6 6 286 507 1,490 2,920 2;700 3,100 1,550 568 17 11 8 4.0 5.5 295 478 1,520 "4,200 3 ,010 2,810 1,620 566 17 10 9 6 5 238 419 1,340 9,300 2 ,400 2,330 1,700 512 15 10 10 7 3.7 277 404 1,280 12,800 2 ,100 2,690 1,500 421 14 10 11 12 2.1 273 397 1,300 7.400 1,830 2,730 1,590 401 16 10 12 52 1.9 270 ' , 368 1,280 5.280 1 ,880 2,440 1,450 386 30 10 27 1.9 2S1 " 357 1,280 4,390 2,170 2,340, 1,240 352 31 9.5 14 16 1.9 370 357 1.2SO 4,610 2,950 2,030 1,140 388 27 9 15 16 40 279 368 1,310 3,780 3,010 1,780 1,120 323 26 11 16 17 77 282 364 1,350 3,220 3,3P.O 1,340 1,190 317 18 12 17 12 934 2S4 324 1,330 2,940 3,270 1,4SO 1,240 2S4 22 11 18 10 6.23O 277 208 1,290 2,680 3,270 1,480 1,340 268 14 11 19 9 1,700 263 293 1,280 2,390 3,210 1,630 1,430 248 12 10 20 14 672 248 543 1,340 2,200 2,890 1,630 1,290 ass 11 8«6 21 20 448 245 11,100 1,440 2,160 2,510 1,950 1,240 - 870 14 S.5 22 10 373 250 9,300 1,770 2,170 2,730 2,0&0 1,020 . 8S0 16 7 23 26 373 1,550 3,690 1,660 2,010 '33,480 2,630 872 197 17 6 24 28 409 6,470 4,690 1,570 1,940 ,670 2,870 762690" 173 14 6 25 29 478 2,630 3,280 1,580 2,030 3 .41? 2,920 160 14 6 26 24 350 1,560 2,740 1,510 2,100 2,660 2,780 654 146 12 7 27 28 694 1,200 2,580 1,390 2,200 2,500 2,820 624 136 15 7 28 32 826 1,330 2,220 1,330 2.330 6,300 2,910 647 121 20 6 29 29 484 1.560 2.150 2,790 3 ,730 2,540 702 107 17 6 34 456 1,240 3,220 _ 2,460 3 ,000 2,330 736 96 14 6.5 31 31 1,060 2,600 - 2,220 ~ 4,150 " 64 11 * Second- uo.r, Runoff in Month foot-days Maximum Minimum *ean acre-feet October...... 539.9 52 3.6 17.4 1,070 HoTember...... 14,701.0 6r 230 1.9 490 29,160 December...... 26,854 6,470 845 866 53,260 Calendar year 1942 ...... 466,378.9 9,370 1.9 1,278 985,100 January...... 62.364 11,100 206 2,012 123,700 February...... 40,630 2,030 1,280 1,448 80,390 March...... 104,370 12,300 1,260 3,367 207,000 April ...... 87,460 6,300 1,880 2,916 173,500 Maymay ...... 81,830 4,460 1,480 2,640 162,300 June ...... 45,797 7,200 624 1,587 90,840 July...... 10,799 708 84 348 21,420 August...... ,'...... 696 71 11 22. 6 1,380 September...... 28,6.0 17 6 9.53 567 Water year 1942-43 ...... 476,226.9 12,800 1.9 1,305 944,600 Peak discharge.- DBC. 24 (6 a.m.) 10.1 sec. -ft.; Jen. 21 (8:30 p.m.) 23.100 sec. -ft.; Jan. 23 (7 a.m!) "M,7W sec. -ft.; Mar. 10 (4 a. 16,300 sea. -ft.; Apr. 28 (8 a.m.) 9-560 sec. -ft.; June 1 (12:30 p.m.) 9,400 see. -ft. Tine basts: Pacific war time. To convert war time to standard time* subtract 1 hour. AMERICAN RIVER BASIN 343 Echo Lake flume near Vade,, Calif. Location.- Water-stage recorder, lat. 38°50', long. 120°02', In NWi sec. 6, T. 11 N., HTTETE., half a mile downstream'from intake and 2 miles northeast of Vade pest office. Altitude of gage, about 7,500 feet (from topographic map). Records available.- August 1923 to November 1943. Extremes.- Maximum daily discharge during season, 26 second-feet Sept. 9, 10, If, 16; no now during most of year. 1923-43: Maximum dally discharge, 27 second-feet Sept. 13-15, 19, 1938; ro flow during most of each year. Remarks.- Records good. Flume diverts water from Echo Lake In Truckee River Baein, Into basin of South Fork American River for power and Irrigation. Cooperation.- Water-stage recorder graph, furnished by Pacific Gas and Electric Co., obtained in connection with a Federal Power Commission project. Discharge, in second-feet, 1945 Day Sept. Oct. Nov. 1 0 0 9 2 0 0 8 3 0 0 7.5 4 0 0 65 5 0 0 3.0 6 0 0 0 7 15 0 0 8 25 0 0 9 26 0 0 10 - 26 0 0 » 11 26 14 . o 12 85 25 ' 0 13 25 24 0 14 25 24 0 IS 26 23 0 16 26 23 0 17 25 21 0 18 25 21 0 13 9.5 21 0 20 0 19 0 21 0* 18 0 . 22 0 IS 0 23 0 17 0 24 0 15 0 25 0 15 0 26 0 14 o- 27 0 13 0 28 0 12 0 29 0 11 0 30 0 10 0 31 9.5 Seoond- U.. Runoff in Month foot-days Maximum Minimum 11680 acre-feet September...... 305.5 26 0 10.1 602 October...... 367.5 25 0 11.9 729 November...... 54.0 9 0 1 15 67 The period...... - - - 1,400 Tine baals; Pacific war tine. To convert w.ar time to standard time, subtract 1 hour. 344 'AMERICAN RIVER BASIN Medley Lakes Outlet near Vade, Calif. Location.- Water-stage recorder, lat. 38°51', long. 120°08', In SWi see. 29, T. 12 N., ETT7~E., 1 mile downstream from main dam at Medley Lakes and 5 miles northwest of Vade post office. Altitude of gage, about 8,100 feet (from topographic map). Drainage area.- 6.2 square miles. itecoras aval-table.- September 1922 to Septeaber 1943. Average aiscnargeT- 21 years, 17.0 second-feet. Extremes.- naxiiul discharge during year, 120 second-feet Aug. 26 (grge height, 2.62 reet;; minimum, 0.7 second-foot Nov. 2. . 1922-43: Maximum discharge, 208 second-feet June 15, 16, 1929 (gage height, 3.42 feet); no flow at times In some years. Remarks.- Records good except those for Oct. 1-3, Jan. 1 to May 2, vrt'ch are fair. Prac- ticaiiy no available contents In Medley Lakes, above station, on r«pt. 30, 1942, and on Sept. 30, 1943. Cooperation.- Water-stage recorder graph, furnished by Pacific Qas & Electric Co., ob- tainaa in connection with a Federal Power Conartsslon project. Rating taole, water year 1948-43, except perloda of Ice effect (gage height, In feet, and discharge. In second-feet) 0.2 0.3 1.8 19 2.2 83 .4 .9 1.4 29 8.4 100 .6 2.4 1.6 40 *.7 128 .8 1.8 SS 1.0 8.0 67 Discharge, in second-feet, water year October 1948 to Septert«r-1943 Day Oct. NOT. Dec. Jan. Feb. Mar. Apr. May June July Attg. Sept. 1 al.5 0.9 17 1)20 45 62 24 93 aE.O .7 26 D22 39 63 19 100 3 a3.0 1.0 26 83 63 69 16 104 4 3.4 1.5 20 23 68 69 14 99 5 3.5 1.5 18 tie 84 68 67 13 89 6 3.4 1.3 19 36 64 58 ' 11 53 7 4.0 1.8 19 38 66 74 11 49 8 9.5 1.8 19 44 68 70 18 37 11 1.3 IS 44 68 53 43 S 10 10 1.4 19 a!5 45 69 47 71 5.6 11 11 1.3 19 44 70 53 80 5.5 9.5 1.3 19 40 65 S3 79 5.5 43 9 1.3 IS 41 66 53 78 5.5 44 8 1.5 18 59 46 53 78 e.s 7.8 3.4 58 39 n 58 ! T"7 - 5.6 ' a!2 alS 1 Iff 4.7 5.5 IS 3S 8.5 4S , 77 8.5 Vf 3.8 14 IS 3$ IS x & 76 6.6. 1* 8.7 28 18 39 4$ 481 78 5.6 19 2.2 84 Iff 38 81 4& 82 S.S 20 8.1 20 17 al 14 78 44 81 5.5 21 1.8 19 17 IS SS 49 81 5.5 22 1.7 19 17 17 40 46 SO 5.6 23 1.6 IS 17 81 44 41 82 6.5 24 1.5 20 17 22 40 41 87 5.5 25 1.4 20 IT1 W:S 22 38 41 106 5 ^ 26 1.8 18 17 SS 39 38 120 4.9 27 1.1 2& 17 f 26 42 36 113 4.9 28 1.0 18 it 2» 48 32 104 4.9 .9 17 S7 31 103 4.9 1* - at 30 .9 16 Jfcfc 61 30 101 4.7 31 .9 1 I* * - f. *t 28 97 - Se®»**- *" - - * - Runoff in Moatfe i aw^Sisa- : ^^^WMP acre-fee* October lSi,t n 0.9 4.04 248 Upreaber 29$. g sa .7 8,98 594 teo«*ber...... 568 IS 18.3 1,120 Calendar yew 194S ...... 3,8*6,6 ia .4 84.4 17,640 Jamjarv ...... 498 . 16 984 Febr uary...... - 12 666 Hare 3m. 12 738 April...... 483 _ IS 393 May...... :...... 843 48 14 30.4 1,870 I.-S67.5 82 9.6 52.2 3,110 July...... i.sSa, 7* 28 46.4 3,040 August ...... 2.10S ieo 11 67.7 '4,170 September ...... 74B.S 104 : 4.7 84.8 1,486 Water y«ar 1942-45 ...... 9,529.8 120: .7 26.A 13,910 a No gage-height record; discharge computed on basis of gate opening at dJua records for Silver Late Outlet near Klrkwood and precipitation records. b Stage-discharge relation affected toy lee or snow, Ti»e baalsi Pacific war tins. Te convert war tine to standard time, aubtn-Rt 1 hour. AMERICAN RIVER BASIN 345 ' 811 tlet near Kirkwood, Calif. Location.- Water-stage recofBHBft. 38°40', long. 120°08', in SWi sec. 32, T. 10 N.,'R. 17 E., 1,000 feet-downstrea^Trttt Silver Lake Dam and 3 miles southwest of JTrtorood. Altitude of gage, abotit 7,200 feet (from topographic map). Drainage area.- 14.9 square miles. R8c6rai available.- September 1923 to September 1943. ^ Average discoarleT- 21 years, 32.4 second-feet. discharge_ during_ year, 311 second-feet Apr. 28 (gage_ _ height,_ 3.85 minimum, 0.2 second-foot Oct. 1-6, Dec. 7, and Sept. 20-23, 28-30. 1922-43: Maximum discharge, 504 second-feet Dec. 11, 1937 (gage height, 5.10 feet), from rating curve extended abpve 190 second-feet; minimum, 0.1 second-foot during periods when reservoir gate was closed. Remarks.- Records good. Contents In Silver Lake was 3,600 acre-feet on Sept. SO, 1942, aM '4,900 acre-feet on Sept. 30, 1943. In addition to water released through dam and over spillway some escapes from Silver Lake through porous rock formation. The dis charge at this station combined with- seepage from Silver Lake near Klrkwood (see following page) represents practically entire outflow from Silver Lake. Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., ob- tamed in connection with a Federal Power Commission project. Rating table, water year 1942-43 (gage height, 4n feet, and discharge, In second-feet) 0.5 0.8 1.0 14 2.0 92 3.0 196 .6 1.0 1.2 25 2.2 110 3.2 220 .7 s.o 1.4 40 2.4 130 3.4> 24S .8 6 1.6 56 2.6 151 3.6 2Y6 .9 9.5 1.8 74 2.S 1Y3 3.8 304 Discharge, in second-feet, water year October 1942 to September 194S Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July AUR. Sept. 1 0.8 13 0.4 19 20 19 23 240 218 48 0.6 0.8 2 .8 .8 .5 19 20 19 23 276 194 32 .6 .8 3 .t : & .4 19 2* 19 24 245 134 26 .6 .S 4 .2 .6 - .3 19 21 19 43 235 120 31 .6 .8 5 .2 .5 .3 19 21 19 92 227 107 31 .6 .8 6 .2 .6 .3 19 21 19 103 22S 95 31 .6 .8 7 12 .t .2 19 21 19 99 221 77 30 .5 .S 8 43 .« 5 19 21 19 102 208 78 25 .4 18 9 54 .4 IS 18 21 19 92 178 46 12 .4 53 10 53 .4 16 IS 20 20 Y6 1S6 7.5 6 .4 53 11 62 .4 16 18 20 20 61 192 6 4.2 .3 53 12 50 .4 16 IB 20 20 54 178 8 3.6 .3 52 13 60 . .3 16 18 20 20 66 15S 6.5 3.3 .6 53 14 48 .3 16 18 20 20 99 140 5.5 3.0 1.2 53 15 46 .3 16 18 20 20 122 120 6 3.0 1.2 67 16 46 .3 16 IS 20 20 160 99 6.5 2.6 1.2 7S 17 44 1.0 16 18 20 20 182 68 8 2.6 1.2 78 18 42 1.6 16 18 20 20 186 85 19 2.4 1.0 75 19 42 .6 16 IS 20 20 186 96 45 l.S 1.2 49 20 40 .5 16 18 20 20 171 107 76 1.8 3.0 .2 21 38 .6 16 20 20 20 149 94 81 2.4 2.6 .2 22 38 .4 17 20 20 20 156 73 63 2.0 2.2 .2 23 57 .4 IB 20 20 20 202 Y7 42 1.4 2.0 .2 24 36 .4 16 20 20 20 226 80 26 1.0 2.0 .4 25 34 .4 18 20 20 21 216 96 20 .8 l.S .7 26 33 .4 1» BO 20 21 176 133 11 .S 1.4 .5 27 32 .4 19 20 20 22 171 169 14 .7 .9 .4 28 31 .4 10 20 19 22 301 196 21 7 .8 .2 29 30 .4 19 20 _ 22 241 202 45 .S .8 .2 30 29 .4 19 20 - 22 190 191 62 1.0 .8 .2 31 28 - 19 20 - 23 ~ 185 .8 .8 ~ Second- .,___ Runoff in Month foot-days Maximun Minimum 118811 acre-feet Octo bar...... :...... 989.2 54 0.2 31.9 1,960 Move her...... 27.2 13 .3 .91 54 Deo« her...... 400.4 19 .2 12.9 794 Calendar year 1942 ...... 1Y, 433.0 319 .2 47.8 34,570 Jam ary. ..:...... 588 20 18 19.0 1,170 Pebru&rv 566 21 19 20.2 1,120 March^7 :::::::::::::::::: 624 23 19 20.1 1,24O April ...... 3,993 301 23 133 7,920 toy...... 5,003 2Y6 73 161 9,920 June...... 1,637.0 218 S.5 54.6 3,250 July- ...... 312.7 48 .7 10.1 620 Augu St...... 32. « 3.0 .3 1.05 65 Septrnnhnr ...... 691.0 Y8 .2 2S.O 1,370 Water year 1942-43 ...... 14,864.1 301 .£ 40.7 29,480 Time basis; Pacific war tint. To convert war time to standard time, subtract 1 hour. 346 AMERICAN RIVER BASIN Seepage from Sliver Lake near Klrkwood, Calif. Location.- Staff gage, lat. 38°40', long. 120°07', In SWi sec. 32, T. 10 N., R. 17 E., JusTUpstream from road crossing and half a mile northeast of silver Lake Dam. Alti tude of gage, about 7,800 feet (from topographic map) Records available.- October 1929 to September 1943. Average Qiscnarge.- 14 years, 3.73 second-feet. BS.- raxm discharge observed during year, 20 second-feet June 20, 21; no flow most of year. 1929-43: Maximum discharge observed," 25 second-feet June 9, 1930; no flow during most of each year. Remarks.- Records fair. Gage read once dally, when read. No flow when Silver Lake gage neignt Is below 14.0 feet. This record represents largest amount of seepage from Silver Lake through porous rock formation; other seepage from Sliver Lake Is of little or no consequence. The discharge at this station combined with that for Sliver Lake Outlet near Klrkwood (see preceding page) represents practically ent're outflew from Silver Lake. ' Cooperation.- Gage-height record, furnished by Pacific Gas & Electric Co., obtained In connection with a Federal Power Commission project. Rating table, water year 1942-43 (gage height. In feet, and discharge, In -second-feet) 1.1 0 1.5 3.6 1.9 14 1.8 .4 1.6 S.S 2.0 17 1.3 1.0 1.7 8 2.1 20 1.4 2.0 1.8 11 Discharge, in second feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0 10 19 18 11 2 0 10 19 18 11 3 0 10 19 IS 11 4 0 10 19 17 10 5 V 0 10 19 17 10 6 0 10 19 17 9 7 0 10 19 17 9 8 0 10 19 17 - 9 9 0 10 19 16 9 10 0 10 19 16 8 11 0 12 19 16 8 12 0 12 19 16 7> 13 0 I.121* 19 16 7 14 0 19 16 6 15 0 -' 19 15 6 16 0 15 19 15 5 17 0 16 19 15 5 18 0 18 18 14 4 19 0 19 18 14 4 20 0 20 IS 14 3 21 0 20 18 14 5 0 19 18 IS 2.5 23 0 19 18 IS 3 24 1 19 18 13 2.0 25 3 19 18 13 2 26 7.5 19 18 13 2 27 8 19 18 12 2.0 28 8 19 16 12 2 29 9 19 IS 12 2 10 19 18 18 2 30 ' 31 10 ~ 18 12 * Seoond- Mean R»noff in Month f cot-days Maximum Minimum WTO acre-feet October...... 0 0 0 . 0 0 November...... 0 0 0 ' 0 0 December...... 0 0 0 0 0 Calendar year 1942 ...... 1,292 IS 0 3.54 2,560 January 0 0 0 0 0 February...... 0 0 0 0 0 March...... :...... 0 0 0 0 0 April...... 0 0 0 0 0 May...... 56.5 10 0 1.82 112 443 20 10 14.8 879 July 575 19 18 18.5 1,140 Augu st ...... 461 18 J£ 14.9 914 September...... 17S.5 11 2.0 S.78 344 Water year 1942-43 ...... 1,709.0 20 0 4.68 3,390 Hote.- Doubtful or no gage-height record May 24, 25, 27-89, 31, June 1, 3-5, 7, Q, 18, July 14, 17, 18, Sept. 1, 3-5, 7, 9-12, 14, 16-21, 23, 25, 26, 28-30] discharge Interpolated o~> conputed on basis of established relation, b«tw*fln stage of Silver Lake and rate of seepage. Tine basist Pacific war tine. To convert war tine to standard time, subtract 1 AMERICAN RIVER BASIN ' 347 Sliver Fork of South Fork American River near Kyburz, Calif. Location.- Water-stage recorder, lat. 38°45', long. 120°17', in NEi sec. 34, T. 11 N., ri. 15 E., 2 miles upstream from mouth and 2 miles southeast of Kyburz. Altitude of gage, about 4,850 feet (from topographic map). Drainage area.- 108 square miles. Records available.- August 1924 to September 1943. Average dischargeT- 19 years, 207 second-feet. Extremes.- rtaxirnui discharge during year, 3,540 second-feet Jan. 21 (gage height, 6.83 reet); minimum, 9.S second-feet Oct. 8 (gage height, 1.14 feet). 1924-43: Maximum discharge, 5,450 second-feet Dec. 11, 1937 (gage height, 8.30 feet), from rating curve extended above 2,500 second-feet on basis of velocity-area studies; minimum, 1.4 second-feet Dec. 6, 1929. Remarks.- Records good except those for periods of no gage-height record, whicJ are fair. Flow regulated by TVvln Lakes .(eapacity, 21,250 acre-feet) and Sliver Lake (capacity, 8,900 acre-feet). Coo-peration.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., oDtainea in connection with a Federal Power Commission project. Rating tables, water year 1942-43 (gage height. In feet, and discharge. In se»ond-feet) Oct. 1 to Jan. 21 Jan. 22 to Sept. 30 1.2 12 2.8 230 1.2 10 1.6 31 1.4 20 3.2 354 1.4 19 1.8 47 i 1.6 32 3.6 522 Note.- Same as preced- 1.8 47 4.0 738 Ing table above 1.8 f»»t. 2.0 68 4.5 1,090 2.4 134 5.0 1,530 Discharge, in second-foot, water y»ar October 1942 to September 1949 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aut. Sept. 1 12 100 32 1S7 244 a305 458 1,210 1,240 244 60 25 2 11 25 177 173 238 904 541 1,170 936 233 57 24 3 11 15 170 152 230 310 565 1,050 207 66 83 4 11 14 96 145 230 337 617 1,000 m 214 a54 25 5 10 13 72 138 260 412 678 922 aSOO 225 852 23 6 10 12 60 124 238 424 622 916 a470 227 860 22 7 10 11 55 120 260 392 678 S61 a450 233 848 22 8 32 11 66 116 238 556 714 783 a440 222 a46 22 9 60 11 74 109 288 1,150 541 678 404 194 844 62 10 70 11 76 107 288 1,300 481 732 354 173 a42 70 11 SO 11 76 103 291 855 441 708 369 156 a40 70 12 64 "1010 75 100 291 696 476 644 365 154 a38 70 13 59 75 100 29S 656 612 580 337 145 a36 69 14 57 10 76 100 307 644 744 527 304 145 a35 68 15 58 20 75 98 320 661 815 467 301 al45 a34 74 16 56 18 75 98 327 504 916 412 307 al40 a33 91 17 54 92 75 90 327 404 936 388 320 a!20 32 109 18 53 860 73 98 327 373 958 373 347 allO 32 112 19 53 17S 70 128 330 347 951 331 377 allO 31 107 20 51 88 68 141 358 327 848 392 400 allO 31 32 21 93 66 65 1,560 369 327 802 432 412 a!35 31 23 22 107 59 85 1,090 392 317 888 446 381 alSO 30 22 23 107 69 a4DO 929 365 307 1,070 536 301 101 30 21 24 107 91 a740 532 344 320 1,O40 586 247 a90 30 22 25 107 96 a325 420 a 335 601 966 612 227 a9O 30 16 26 105 64 282 365 a315 408 783 639 194 a85 29 13 27 105 125 214 327 a310 445 S61 315 192 a80 28 12 28 109 130 258 294 a305 504 1,330 815 197 a80 27 12 29 110 88 244 285 570 1,070 764 220 a75 26 11 30 109 100 214 279 467 973 732 238 73 26 11 31 107 197 255 424 888 67 26 Second- u«n Runoff in Month foot-days Maximum Minimum "eaB acre-feet Ooto ber 1,983 110 10 64.1 3,940 Hove her...... 2,398 850 10 79.9 4,760 Deoeliber.'...... 4,629 740 55 149 9,180 Calendar year 1942 ...... 118,736 1,330 10 325 836,500 Janu ary 8,763 1,560 90 S83 17,38O Febr u&ry S,405 392 230 300 16,670 Marc h...... 15,537 1,300 304 501 30,820 Apri 23,375 1,330 441 796 47,360 May. 21,458 373 692 42,560 June 12,047 192 402 23,890 July _ 4,503 *244 67 145 8,930 Augu 1,164 60 26 37.5 2,310 September ...... 1,281 112 11 42.7 2,540 ffater year 1942-43 ...... 106,048 1,830 10 291 210,300 Jeak discharge.- Jan. 21 (7 p.m.) 9 r 54O sec. -ft.; Apr. 28 (4 a.m.) 1,680 sec. -ft. t Hay 1 * a Ho gage-height record; discharge computed on basis of records of total flow of South' Rork 'American River near Kyburz. Time basis; pacific war time. To convert war time tr> standard time, subtract 1 hour. 348 AMERICAN RIVER BASIN Twin Lakes Outlet near Klrkwood, Calif. Location.- Water-stage recorder and concrete control, lat. 38°42', long. 120°03', In SHi sec. 18, T. 10 N., R. 18 E., 500 feet downstream from main dam and outlet gate of Twin Lakes and 1 mile east of Klrkwood. Altitude of gage, about 7,900 feet (from topographic nap). Drainage area.- 12.4 square miles. Records available.- September 1922 to September 1943 (October 1934 to September 1943 include now over Twin Lakes spillway). Average discharge.- 21 years, 33.0 second-feet (Including flow over Twin Lakes spillway). Extremes.- Maximum combined dally discharge during year for outlet and spillway, 310 secona-feet (regulated) June 1; minimum, 1.2 second-feet Oct. 15-17. 1922-43: Maximum combined dally discharge for outlet and splllwa^, that of June 1, 1943; 0.2 second-foot (leakage) at times. Remarks.- Records good. No diversion. Contents In Twin Lakes was 19,9")0 acre-feet on SSpTT 30, 1942, and 21,000 acre-feet on Sept. 30, 1943. Flow over Tvln Lakes spill way occurred June 1-3 and July 15. Cooperation.> Water-stage recorder graph, furnished by Pacific Gas .& Electric Co., oDtainea in connection with a Federal Power Commission project. Discharge, in second-fset, water year October 1942 to September 1943 Day Oct. Nor. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 1.7 29 2.2 14 34 101 15 97 310 " 8782 19 3.0 1.7 - 1.7 2.7 14 34 99 16 97 269 19 3.0 g 1.7 2.0 2.4 14 34 96 16 98 187 73 17 2.7 4 1.7 2.0 1.7 14 34 101 15 91 156 80 12 2.7 5 2.0 1.7 1.7 14 34 103 68 126 87 7 2.7 2.0 1.7 5.5 14 34 104 32 57 117 96 7 2.7 7 2.0 1.7 10 13 34 106 32 67 117 99 5.5 2.4 2.0 1.7 10 13 69 104 32 57 117 96 4.6 2.4 12 1.7 10 13 106 103 4O 67 119 84 6 3.4 10 18 1.7 10 13 104 103 52 57 119 75 5 4.0 11 7 1.6 9.5 14 104 102 53 57 133 68 5 4.0 If, 1.3 1.6 9 is 103 103 63 57 145 68 6 3.7 IS 1.3 1.4 9 $6 103 103 63 66 144 68 5 3.7 14 1.3 1.4 9 104 103 64 57 133 71 5 3.4 15 1.2 1.4 9 f! 104 104 64 57 133 74 5 3,2 1.2 7.5 9 14 104 ex 79 67 133 68 S ie 1.2 13 9 24 104 16 92 67 133 61 6 27 18 1.2, 14 9 34 104 16 99 2$ 13$ 8ft 8 27 1.7 13 9 32 104 IS Sf $«4 146 68 6 , SS 20 37 7 9 34 104 16 99 2.4 162 81 6 12 21 60 2.0 19 38 103 15 99 2J4 168 47 4.6 12 22 64 1.7 34 87 103 IS 101 8.7 156 46 4.6 12 23 64 1.7 24 34 103 15 101 2.7 lie 40 4.2 8 64 1.7 15 34 104 16 101 3.0 88 37 4.2 1.6 25 64 1.7 14 35 104 15 96 6.6 73 37 4.0 02.4 26 64 1.7 14 36 104 16 87 66 67 37 4.0 aE.4 27 70 2.0 14 35 103 16 90 162 67 34 3.7 SS.4 28 73 2.2 14 34 102 16 90 162 67 31 3,7 aS.4" 29 74 2.2 14 34 * _ 16 90 162 70 Si 3.4 2.4 30 74 2.2 14 34 15 97 162 80 28 3.2 2.4 31 74 - 14 34 - 15 * 166 - 22 3.0 - Second- Runoff in Month foot-days Maxima Minima Meri* acre^feet 27.2 *.«0 OCft December ...... 336.7 34 1'7 10.9 668 Calendar year 1942 ...... 1«,107.0 290 1.2 44.1 31,940 730 38 16 33.5 1,460 2,371 105 34 84.7 4,700 1,846 106 15 5S.5 3,660 April ...... 1,969 101 16 3,910 May...... 2,058.1 165 2.4 tf.4 4,080 3,967 310 . 67 133 7,910 1,804 99 22 61.1 3,760 193.7 Septsaber...... 199. O 87 1.6 6.63 395 Hater year 1942-48 ...... '...... 16,564.8 310 1.2 48.4 32,840 a NO gage-height record; discharge computed on basis of record of gats change at Twin L&kea Reser voir. Tlma baa1st Pacific war time. To convert war time to standard tine, subtract 1 hoar. AMERICAN RIVER BASIN 349 El Dorado Canal near Kyburz, Calif. Location.- Water-stage recorder, lat. 38°46', long. 120°19', In SEi sec. 20, T. 11 N., H. 15 E., 400 feet downstream from intake and 2 miles west of Kyburz. Altitude of gage, about 4,100 feet (from topographic map). Records available.- October 1922 to September 1943. Average discharge.- 21 years, 99.5 second-feet. Extremes.- Maximum daily discharge during year, 152 second-feet Aug. 26; minimum daily, U.y secdHd-foot tfer. 23, 24. 1922-43: Maximum dally discharge, 165 second-feet June 24, 27, 28, 30, 1938; no flow at times. Remarks.- Records good. Canal diverts from left bank of South Fork American River just below Silver Fork of South Fork and 2 miles below Kyburz; water used for power and irrigation. Cooperation.- Water-stage recorder graph, furnished by the Pacific Gas & Electric Co., ootainea in connection with a Federal Power Commission project. Discharge, in second-feet, water year October 1942 to September 1943 * Day jOot. NOV. > Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. I 30 113 145 123 98 120 3.4 2.0 100 144 130 129 2 20 18 13V 123 98 120 3.4 1.8 100 144 11F 129 3 19 12 141 122 98 120 3.4 1.8 98 143 118 136 4 18 4.0 14V 122 105 120 56 1.8 100 143 106 134 5 le 4.0 14V 183 110 114 92 37 100 144 96 126 6 20 4.0 146 188 109 114 52 70 100 145 9], 104 7 29 4.1 145 132 109 114 2.4 79 106 144 100 84 8 63 3.8 145 138 108 114 8.2 79 116 144 110 103 9 96 2.0 146 132 109 114 2.2 79 120 144 10* 120 10 107 4.1 147 138 110 112 2.2 . 51 123 144 12f 115 11 128 18 148 136 110 113 8.0 43 124 144 140 112 12 118 19 149 137 110 114 8.0 44 184 144 141 110 13 96 18 148 138 110 114 8.0 44 126 144 140 108 14 93 16 148 138 11Q 114 78 59 138 144 isr 108 15 96 23 148 138 110 114 98 66 133 144 13V 118 16 92 23 148 138 110 114 98 65 134 144 13S 130 17 83 35 148 129 110 114 98 67 134 144 131 143 18 80 30 148 103 110 114 98 68 136 144 12V 147 19 76 38 147 98 116 114 98 68 137 145 13F 14 * 20 72 48 147 105 119 114 98 69 137 144 13F 6fc 21 112 58 132 91 119 113 37 70 138 145 13C 36 22 188 51 131 58 180 38 2.0 70 138 145 12f 35 23 126 21 126 58 119 .9 2.0 72 138 145 IS? 33 24 125 1.8 122 66 119 .9 2.0 72 139 145 15? 33 25 124 59 122 74 119 17 1.8 78 138 145 13E 31 26 122 102 122 74 180 13 1.8 75 138 145 15f 27 27 181 105 122 74 180 1.8 1.8 88 139 146 151 26 28 127 187 122 87 119 3.4 6.5 89 141 150 14f 85 29 126 146 128 98 _ 3.3 8.0 94 148 148 141 24 30 124 147 123 98 _ 3.3 2.0 96 144 146 13£ 24 31 122 ~ 123 98 - 3.4 - 100 - 141 13f - Seccnd- Rmoff in Month foot-days Maximum Minimum Mean a ire-feet October...... 2,694- 188 18 86.9 6,340 NcveB&er 1,848.8 147 1.8 41.6 2,480 December...... 4,292 149 182 138 8,610 Calendar year 1942 ...... 41,944.3 TJ.QO *y* J.»O1 A 115 83 1 190 January ...... 3,405 138 58 110 6,760 February ...... 3,184 ISO 98 112 . 6,200 March...... 2,499.0 120 .9 4,960 April ...... 907.1 92 1»8 30 2 1,800 May...... 1,887.4 100 1 8 60.9 3,740 June ...... 3,775 144 98 126 7 f%WJADA July...... 4,481 150 141 145 8j89Q 1 R9 August ...... 3,974 J.0C 91 1J.J5Q OR 7,880 September...... 8,643 147 24 88.1 5,240 Rater year 1942-43 ...... 34,930.3 152 .9 96.7 69,280 Pacific war time. To convert war time to standard time, subtract 1 hour. 350 AMERICAN RIVER BASIN Alder Creek near Whitehall, Calif. Location.- Water-stage recorder, lat. 38°45', long. 120°22', In SWi sec. 36, T. UN., fT. I? E., three-quarters of a mile upstream from mouth and 2 miles southeast of Whitehall. Altitude of gage, about 4,000 feet (from topographic map). Drainage area.- 22.8 square miles. Records available.- October 1922 to September 1943. Published records Include diversions oy pipe line. Average discharge.- 21 years, 33.6 second-feet. Extremes.- Maximum discharge during year, 1,320 second-feet Jan. 21 (gage height, 5.40 reet, from floodnarks), from rating curve extended above 500 second-feet by logarithmic plotting; minimum, 0.1 second-foot at times during October and November. 1922-43: Maximum discharge, about 1,760 second-feet Mar. 25, 1928 (gage height, 7.1 feet, from floodmarks), from rating curve extended above 240 second-feet; minimum, 0.1 second-foot at times in 1924, 1926, 1931, 1933-43. Extremes do not Include flow In feeder pipe line. Remarks.- Records good except those for periods of doubtful or no gage-height record, wnicn are fair. Records (except extremes) include computed flow In feeder pipe line that diverted Just above station Into El Dorado Canal Oct. 3 .to June 16. Coop »ration.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., ob- iinea in connection with a Federal Power Commission project. Discharge, in second-feet, water year October 1942 to September 1943 Daj Oct. NOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0.8 0.7 34 85 114 96 139 130 40 5.5 1.4 0.5 2 .8 .7 68 79 107 93 141 119 29 5.5 1.4 .5 3 .8 1.0 92 73 101 97 139 114 25 5.5 , 1.4 .5 4 .8 1.8 48 64 97 118 139 103 88 5.5 1.4 .5 5 .8 1.0 88 58 93 145 137 95 81 5.5 1.1 .5 6 .8 .9 86 53 S5 198 137 85 80 4.9 .S .5 7 .8 .9 24 48 84 186 137 74 80 4.5 .8 .5 8 .8 .9 82 43 88 891 149 67 17 3.6 .8 .5 9 .8 .9 28 39 81 578 134 64 15 3.6 .8 .5 10 .2 .9 80 35 79 653 125 61 15 3.6 -.8 .6 11 .3 .9 IS 33 77 455 114 56 14 3.3 .8 .6 12 .9 .9 18 31 76 335 107 53 13 3.0 .8 .6 13 - .S .9 IS 89 74 839 1O7 50 18 3.0 .8 .6 14 .S .9 18 27 81 289 118 45 11 3.0 .7 .6 15 .8 4.4 ie 26 S2 845 117 43 10 3.0 .7 .6 16 .8 3.6 18 85 84 213 126 41 10 3.0 .7 .6 17 .7 61 18 18 86 195 123 39 9 3.0 .7 .6 18 .7 343 16 86 89 172 121 35 9 2.8 .6 .6 19 .7 89 16 86 89 155 121 34 9 ' 2.S .6 .6 20 .7 50 14 45 97 139 121 31 9 2.8 .6 .6 '.7 21 36 16 "715765 105 134 117 30 9 8.5 .6 .5 22 .7 30 80 181 130 107 29 9 8.5 .6 .5 23 .7 30 56 554 183 123 105 28 8.5 2.5 .6 .6 24 .7 32 335 358 123 119 103 28 8 2.2 .6 .5 25 .7 38 276 868 185 119 101 27 8 2 8 .6 .5 26 .7 30 128 281 115 119 98 26 7.6 8.8 .6 .6 27 .7 44 116 193 103 . 126 100 84 7 1.9 .6 .5 28 .7 48 114 161 98 130 228 88 6.5 1.9 .5 .5 29 .7 34 108 143 . 143 163 80 6 1.6 .5 .5 30 .7 34 99 143 - 143 145 81 6 1.4 .5 .4 31 .7 " 91 183 ~ 141 ~ 28 ~ 1.4 .6 " Second- Runoff in Month f oot-days MaxiouB Minima Mean acre-feet October...... 16.9 0.9 0.2 0.55 34 November...... 919.7 343 .7 30.7 1,820 December...... '...... 1,901 335 14 61.3 3,770 Calendar year 1942 ...... 23,694.6 632 ??. 64.9 47,010 January...... 4,607 765 18 145 8.940 February...... 2,670 125 74 95.4 5,300 March. . 6,361 653 93 805 12,620 April...... 3,812 228 98 127 7.560 . May...... 1,682 - 130 80 58.3 3,280 June ...... 406.5 40 6 13.6 804 July...... 99.7 5.5 1.4 3.22 198 August ...... r ...... 23.9 1.4 .6 .77 47 September ...... 16.? .6 .4 .63 38 Hater year 1942-43 ...... 22.364.7 7*5 .8 61.8 44,340 Peak discharge.- H IT. 18 (8 a.m. and 12:30 P.M.) 628 sec. -ft. ; Deo. 84, 698. sec. -ft.; Jan. 21 (6 p.m.) 1,320 sec.- t.; Mar. 10 (6 a.m.) 706 see. -ft. Peak discharges do not Include flow in feeder pipe line. Note.- Doubtful or no gage-height record for creek Oct. 1 to HOT. 2, HOT. 7-14, 24-27, 29,; 30- 1 , Dec. 1-4, 88-86, 30, 31, Jan. 1, 9-8, 13-82, fcb. 8*. Mar. 6> 11, 12j Apr. 17r ^tew S-$i 9->lSf Sept,. 16-85| discharge Interpolated OF computed on basis of recorded range in stage. Vise oasis: Pacific war tine. To consent war tin* tc standard tine* awbtrart .1 hour. , ' . . < AMERICAN RIVER BASIN 351 Silver Creek at Union Valley, Calif. Location.- Water-stage recorder, lat. 38°52', long. 120°26', In SEi sec. 20, T. 12 N., K. w E., 1 mile downstream from confluence of No'rth and Middle Forks, near lover end of Union Valley. Altitude of gage, about 4,530 feet (frcpn topographic map). Drainage area.- 82.7 square miles. Records available.- October 1924 to September 1943. Average discharge.- 18 years (1924-27, 1928-43), 203 second-feet. Extremes.- Maximum discharge during year, 6,440 second-feet Jan. 21 (gage height, 12.80 reet;; minljnum, 4.2 second-feet Sept. 24. 1924-43: Maximum discharge, 8,560 second-feet Dec. 11, 1937 (gage height, 15.28 feet), from rating curve extended above 2,200 second-feet on basis of velocity-area studies; minimum, 1.9 second-feet Aug. 27, 28, 1931. Remarks.- Records good. No diversion above station. Rating tables, water year 1942-43 (gage height, in feet, and discharge, In second-feet) Oct. 1 to Jan. 21 Jan. 22 to Sept. 30 p n i "! ao l'2 2S* 5 ' 5 1 ' 250 2 ' 4 216 5.0 1,070 '? o'l $'* * 3 ' 8 37E 6 '° 1 ' 500 2 -s SO* 5.5, l'310 '* 2.4 1.6 91 3.6 . 480 6.5 1,800 3.2 410 6.0 it 580 '% il p'n ?il 1'° S?4 7 '° 2' 10° 3 ' 6 534 6 ' 5 i'860 .8 17 2.0 144 4.5 786 S.O 2,800 4.0 668 7.O 2 16O 1.0 32 2.4 210 5.0 1,000 9.0 3,'sOO 1.5 856 8.0 IjsOO Note.- Same as preceding table below 2.4 feet. Discharge, in second-feet, water year October 1942 tc September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug.' Sept. 1 6.6 7 163 241 292 247 547 1,120 2,130 114 14 6.5 6.6 7 659 230 273 247 690 935 644 109 13 5.5 3 6.5 20 324 192 258 262 729 S16 410 107 12 5.5 4 6.5 IB 176 134 267 333 748 782 316 110 12 5.5 5 6.5 11 136 173 304 634 763 733 276 99 11 5.5 6 6 10 112 154 276 624 634 751 267 107 11 . 5.5 7 6 9.5 109 146 290 496 711 648 287 98 10 5.5 8 6 9.5 109 140 267 1,030 755 600 302 87 10 5.5 9 6 9.6 101 133 245 2,320 524 521 304 80 9.5 5.5 10 6 9.5 96 133 243 2,260 443 631 282 71 9 5.5 11 S 9.5 96 129 258 1,100 402 593 290 69 8.E 5.5 12 S.6 9 95 125 249 793 480 512 256 66 8 5 13 S 9 100' 125 251 759 686 461 188 60 7.E 5 - 14 e 9.5 107 134 265 864 856 410 183 58 ?.e 5 15 9.S 38 109 143 276 644 884 346 202 55 7.« 5 16 9 26 112 134 290 537 888 237 234 51 7 4.8 46 7 4.8 17 8 322 110 110 285276" 5O5 624 287 243 18 7.5 1,760 103 121 437 016 326 256 44 7 4.8 7 341 95 113 273 431 763 379 238 41 7 4.8 20 7 173 95 179 313 407 620 440 194 37 7 4.8 21 7 131 86 3,350 33? 422 576 505 183 43 6.5 4.8 22 7 121 . 98 1,800 431 410 700 624 131 41 6.5 4.5 23 7 134 1,290 1,330 351 388 994 715 131 34 6.5 4.5 24 7 174 1,670 675 £09 404 888 715 127 30 6.5 4.5 25 7 182 432 512 29-1 470 736 6S4 120 27 6.5 4.5 26 6.5 121 888 452 273 512 573 583 122 25 6.5 4.5 27 6.5 361 272 407 256 560 700 573 120 23 6.5 4.8 6.5 248 388 357 247 624 1,810 513 126 20 6 4.3 29 6.5 166 375 341 733 755 425 130 18 6 4.8 30 6.6 214 290 396 586 715 518 125 16 6 4.8 31 7 255 336 499 1,360 15 5.5 Runoff in Month £££. «* Minimum Mean acre-feet Octo 217.5 9.5 6 7.02 431 Move 4,648.0 1,750 7 155 9,22O DeoeBtoer...... 8,451 1,670 86 273 16,760 Calender year 1942 108,020.0 1,970 6 296 214,200 Janu ary 13,O45 3,350 110 421 25,870 February 7,955 431 243 ' 284 15,780 arc h...... 20,568 2,320 247 663 40,800 Apri 1...... 22,210 1,810 402 740 44,050 May. 13,748 1,360 287 605 37,190 June 6,867 2,180 120 296 17., 590 July 1,806 114 15 58.3 3,580 AugU st ...... 254.5 14 5.5 8.21 SOS September...... 151.0 5.5 4.5 5.03 300 Water year 1942-43 ...... 106,921.0 3,350 4.5 293 212,100 , feak discharge.- NO7. 18 (S a.m.) 2.870 sec. -ft.: Dec. 24 (1 a.,m. ) 3.96O gee. -ft.; Jan. 21. (6:30 p.m.) 6,440 sec.-ft.; Her. 9 (11 p.m.) 3,O40 sec.-ft.; Apr. 28 (4t30 a.n.) 3,200 sec.-ft.; June 1 {8 a.n.) 3,350 sec.-ft. Time basis; Pacific war time. To convert war tine to standard tine, subtract 1 hour. 352 AMERICAN RIVER BASIN Sliver Creek near Placervllle, Calif. Location.- Water-stage recorder, lat. 38°47', long. 120°35', In swi sec. 13, T. 11 N., R. 12 E., a quarter of a mile upstream from mouth and 12 miles northeast of Placer vllle. Altitude of gage, about 2,250 feet (from topographic map). Drainage area.- 176 square miles. Records available.- December 1921 to September 1943. Average discharge.- 21 years (1922-43), 392 second-feet. Extremes.- Maximum discharge during year, 11,600 second-feet Jan. 21 (gage height, 12.4 rest), from rating curve extended above 3,800 second-feet on basis of valocity-area studies; minimum, 33 second-feet Oct. 21. 1921-43: Maximum discharge, 14,600 second-feet Dec. 11, 1937 (gage height, 13.8 feet), from rating curve extended above 3,800 second-feet on basis of velocity-area studies; minimum, 5.5 second-feet Sept. 18, 1934. Remarks.- Records good. No diversion above station. Rating table, water year 1942-43 (gaga height, In'feet, and discharge, In aecond-feet) 1.7 34 2.S 188 5.0 1,080 S.O 3,950 1.8 42 3.0 236 5.5 1,410 S.5 4,660 2.0 61 3.4 348 6.0 1,780 9.0 5,410 2.8 84 3.S 484 6.5 2,220 9.2 5,730 2,4 112 4.2 648 7.0 2,730 2.6 146 4.6 846 7.5 3,300 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. »OT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 43 40 358 575 900 604 1 ,150 1,540 3,5SO 354 65 46 2 46 40 S09 646 SOS 6O4 1 ,320 1,720 1,410 333 83 46 3 41 64 800 446 728 613 1 ,40O 1,350 S68 327 79 46 4 40 80 411 414 694 728 1 ,440 1,380 666 336 76 46 5 40 59 304 397 732 ,1,300 1 ,520 1.26O 579 321 73 45 6 39 51 273 339 676 1,680 1 ,260 1,340 550 330 72 46 7 37 49 241 304 718 1,420 1 ,390 1,200 562 312 71 45 8 36 49 226 304 704 2,130 1 ,490 1,150 587 290 70 45 9 36 48 234 276 630 5,OOO 1 ,160 943 617 27O 69 45 10 36 48 217 268 596 5,730 1 ,040 1,100 570 244 66 45 11 37 47 207 257 626 3, ISO 930 1,130 604 231 65 44 12 42 47 205 ' 262 613 2,g20 978 9S4 554 217 64 44 13 40 46 202 276 596 1,900 1 ,180 900 462 207 es 43 , 14 40 46 212 a290 613 2.15O 1 ,560 830 421 190 62 43 15 40 97 212 aSOO 626 1,7SO 1 ,580 723 438 188 61 42 16 39 102 ggg a290 644 1,540 1 ,610 613 492 170 61 a42 17 617 222 a260 639 1.440 1 ,560 591 522 158 60 a42 18 3,370 21O a270 622 1,340 1 ,440 622 566 150 59 42 19 35 1,070 193 a260 613 1,240 1 ,390 752 575 141 68 42 20 34 466 193 333 657 1,160 1 ,190 742 495 135 56 41 21 34 339 175 5,620 699 1,150 1 ,010 900 47O 141 55 40 22 34 393 205 4,680 912 1.14O 1 ,090 1,020 387 146 54 39 23 36 290 1,550 4,080 635 1,080 1 ,480 1,270 361 132 54 3S 24 35 31S 3,710 2,1SO 762 1,060 1 ,500 1,300 354 120 54 37 25 36 377 1,380 1.4SO 732 1,110 1 ,380 1,260 339 115 63 31 26 36 2S4 S19 1,250 694 1,150 1 ,060 1,120 342 ioa 52 37 27 37 568 694 1,140 64S 1,200 1 ,020 1,060 34S 103 50 37 .28 37 5S7 S14 996 613 1,270 2,640 1,040 361 100 49 38 29 38 377 912 972 1,480 1 .440 900 3SO 94 4S 38 30 38 380 718 1,300 1,300 1 ,200 S14 374 92 47 37 31 39 613 1,100 1,150 1,900 87 46 Seoond- ,.__ Runoff in Month foot-days Maximua Minimum **aa acre-feet Octo 1,170 43 34 37.7 2,320 Hove mber...... 10,239 3,370 40 341 20,310 Deoember...... 17,541 3,710 ' 175 566 34,790 Calendar year 1942 ...... 229,955 4,090 34 630 456,100 Janu ary 31,407 5,620 257 1.013 62,290 Febr 19,325 912 596 69O 33,330 Maro 50,649 5,730 604 1,640 100,900 Apri 40,408 2,640 930 1,347 80,150 May. 33,459 -. 1,900 * 591 1,079 66,360 June 18,834 3,680 339 628 37-.360 July 6,143 354 S7 198 12,180 Augu St...... 1.915 85 46 61.8 3,800 Septe»ber...... '...... ,...... 1,257 46 37 41.9 2,490 Dater year 1942-43 ...... 232,547 5,730 34 637 461,300 Peak dl a charge.- HOT. 18 (12:30 p.m.) 4.740 see. -ft. f Dec. 24 (4 a.m.) 5.S90 eec.-ft.; Jan,- 21 io p.ai.j j.j.,ouu aec.-ft.; Jan. BO is a.m.j t>,liu sec.-rt.; Mar. 10 (4 a.m.) 7,330 sec.-ft.; Jun (11:30 a.m.) 4,960 eec.-ft. a He gage-height record) discharge computed on basis of records-fer station at Onion Valley. Time basis; Pacific imf- time. To convert war -time to standard tjae, tubtrait 1 hoar. 'AMERICAN RIVER BASIN 353 South Fork Silver Creek near Ice House, Calif: Location.- Water-stage recorder, lat. 38°49', long. 120°22', In SWi sec. 1, T. 11 N., . k. 14 E.» half a mile upstream ^from Peavlne Creek, Ifc miles northeast of lc« House, and 8 miles northeast of Rlverton. Altitude of gage, about 5,300 feet (from topo graphic map). Drainage area.- 28.4 square miles, Records- available.- October 1924 to September 1943. July to October 1922 at s'te 1 mile Average djschaiye.- 19 years, 71.6 second-feet. Extremes.- Maximum discharge during year, 1,110 second-feet June 1 (gage height, 4.34 rest), from rating carve extended above 540 second-feet on basis of velocity-area studies; minimum, 1,0 second-feet Sept. -23-26. 1924-43: Maxifflnm discharge, 2,200 second-feet Dec. 11, 1937 (gage height, 5.80 fset), from ratlag curve extended above 540 second-feet on basis of velocity-area studies; minimum, 0.1 second-foot Aug. 21 to Sept. 6, 1931. Remarte.- Records good. No diversion. > Rating table, water year 1942-43, except period of Ice effect, (gage height, In feet, and discharge, In second- feet) C.4 2.5 1.2 56 2.4 312 .5 6.& 1.4 81 2.S 428 .6 11 1.6 116 3.2 562 , .8 B3 1.8 158 3.6 718 1.0 38 2.0 £06 3.S 810 Discharge, in second-feet, water year October 1942 to Septeober 1943 Day Oct. MOV. Dec. Jan. Feb. Mar. Apr. Hay June July AUR. Sept. 1 1.4 1.9 S3 67 64 67 15* 473 796 78 21 3,3 2 1.4 1.9 125 66 62 57 194 470 368 73 3.3 3 1.2 3.3 176 54 58 60 214 410 235 78 3.3 4 1.2 4.1 74 53 58 81 235 404 177 86 15 2.9 5 1.2 3.3. 53 52 66 129 240 . 383 145 84 15 2.9 6 1.2 2.9 40 46 63 122 204 401 139 92 14 2.9 7 1.2 2.9 36 44 62 103 229 374 154 84 13 8.9 8 1.2 2.9 36 42 58 177 237 343 168 75 13 2.9 9 1.2 3.3 36 38 54 422 175 295 177 70 12 2.9 10 1.2 2.9 30 39 b54 419 14S 346 175 64 1.1 2.9 11 1.9 2.9 29 38 b55 266 131 337 175 64 10 2.5 12 2.9 3.3 2V 37 b56 204 143 298 150 62 9.5 2.2 13 2.5 3.3 8V 40 56 189 232 266 120 66 9 1.9 14 a2.5 3.7 87 40 57 204 315 232 108 57 9 1.9 15 a2.s 9 29 44 62 156 340 194 124 56 9 1.9 16. a2.5 7.5 31 43 64 137 354 158 143 SO 17 8.5 1.6 a2.4 3122V N 32 29 65 131 346 154 163 47 8 1.6 18 a2.3 31 SB 66 116 348 175 184 45 7 1.6 19 a2.2 157 29 35 66 106 326 209 170 44 6.5 1.4 20 aS.l 64 29 44 71 101 263 232 139 41 6 1.4 21 a.2.0 48 25 367 75 103 235 271 116 44 5.5 1.2 22 al.9 42 29 377 91 101 298 329 83 39 5.5 1.2 23 al.8 42 241 25S 80 97 407 422 74 34 5.5 1.0 24 1.7 51 432 150 78 103 410 441 68 32 4.9 1.0 25 1.7 59 156 110 68 118 351 428 66 31 4.5 1.0 26 al.6 44 103 95 64 131 274 377 70 30 4'.1 1.0 27 1.6 64 81 86 62 141 319 371 74 27 1.2 28 1.6 78 95 77 68 168 598 354 84 24 3.7 1.2 29 1.6 53 97 73 194 348 292 92 24 3.7 , 1-2 30 1.6 53 80 75 168 334 301 87 22 ' 1.8 31 1.6 71 68 145 551 21 sis Second- _ _ Runoff in Month foot-days Maximum Minimum *ean acre-feet Ooto 54.9 2.9 l.E 1.77 ' 109 Hove 1,153.1 312 .1.9 38.4 ' 2,290 December...... 2,360 432 25 76.1 4,680 Calendar year 1942 38,226.7 628 1.2 105 75,820 Jaau ary 2,612 377 28 84.3 5,180 Febr 1,788 91 54 63.9 3,550 Hare h...... 4,706 422 57 152 9,330 Apr! 1...... 8,399 59S 131 280 ' 16,660 Hay. 10,291 551 154 332 20,410 June 4,824 796 66 161 9,570 July 1,634 92 21 52.7 3,240 Augu 280.4 21 3.3 9.05 556 September ...... 59.4 3.3 1.0 1.98 118 Water year 1942-43 ...... 38,161.3 796 1.0 105 75,690 Peak discharge.- Dec. 24 (2 a.m.) 705 sec. -ft.; .Tan. 21 (7 p.m.) 656 sec. ft.} Mar. 9 (7i30 p.m.) sec.-ft. a Ho gage-height record} discharge computed on basis of records for station at Union Valley. e b Stage-discharge relation affected by ice. Time basisi Pacific war time. To convert war time to standard time, subtract 1 hour. 354 AMERICAN RIVER BASIN American River flume near Camlno, Calif. Location.- Water-stage recorder, lat. 38°46', long. 120°42', In SWi sec. 25, T. 11 N., R. 11 E., 300 feet upstream from Iowa Canyon Creek, 1 mile downstrean from diversion dam, and 3 miles northwest of Camlno. Altitude of gage, about 1,710 feet (from topographic nap). Records available.- November 1922 to September 1943. Average discharge,-v21 years, 102 second-feet. Extremes.- Maximum dally discharge during year, 178 second-feet June 21; no flow Mar. 1922-43: Maximum dally discharge, 189 second-feet Aug. 15, 16, 1942; no flow at times In each year. Remarks.- Records excellent. Flume diverts water from South Fork American River in SWt sec. U4, T. 11 N., R. 11 E., which Is used to develop power In SWi sec. 20, T. 11 N., R. 11 E., Just above Rock Creek, at which point water is returned ;to South Fork. Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., ob- tainea in connection with a Federal Power Commission project. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Pec. Jan. Feb. Her. Apr. May June July Aug. Sept. 1 78 149 146 15S 160 168 155 161 162 155 140 150 67 123 154 159 160 167 156 161 161 1S2 122 14s 65 111 165 156 160 167 158 161 163 149 122 147 67 131 152 158 160 167 158 162 163 151 141 14 S 68 112 146 159 160 167 , 157 162 164 ISO. 147 132 6 71 101 138 159 160 167 158 162 164 152 154 117 73 96 132 155 160 167 161 164 164 14S 153 121 93 95 134 155 160 167 161 163 164 147 157 105 9 128 95 136 149 160 165 162 163 164 144 153 106 10 133 97 139 148 160 165 166 163 164 136 154 106 11 14S 96 137 147 160 7S 170 163 164 136 163 107 160 94 137 145 163 0 172 163 164 134 16S 107 13 146 93 138 144 163 0 16S 163 164 131 174 107 14 143 94 137 144 163 0 167 162 164 130 174 106 14S 133 136 145 163 0 166 162 164 130 175 146 16 146 148 137 145 163 . 0 164 162 171 12S 173 144 141 159 136 139 163 39 162 161 174 126 174 133 135 US 137 125 163 58 161 161 175 164 173 145 12S 122 135 135 163 110 159 161 176 128 164 BE 20 136 144 134 155 163 154 156 461 177 180 160 130 21 136 136 135 164 163 154 161 160 178 183 168 78 124 131 135 164 162 154 164 160 175 156 168 54 23 155 117 164 164 162 153 163 159 167 166 164 55 155 112 167 164 166 153 162 159 160 154 159 54 1S7 136 166 164 169 154 161 159 155 154 155 53 26 148 133 161 162 166 154 162 166 153 1S2 152 66 152 148 162 161 166 154 163 169 152 150 153 64 1S1 159 164 161 166 155 161 166 154 14 S 153 69 29 147 145 165 161 - 155 161 167 155 146 152 70 152 143 162 161 - 1S3 161 167 156 144 147 73 146 - 159 161 - 154 - 165 148 147 - Seooad- Runoff in Month foot-days UaximuB ' MiniMM Mean acre-feet October...... 7,710 l *yo December...... 4,550 167 133 147 9,020 Calendar year 1942 . ... .^...... 51,982 186 C 142 103,000 9,460 Iteroh...... 168 7,540 9,630 May...... 1*7ft ! 1 RJL September...... 3,104 150 53 103 6,160 Water year 1942-43 ...... 52,377 176 0 143 103,900 Pacific war time. To convert war time to standard time, subtract 1 hour. COLUSA AND YOLO BASINS 355 Knights Landing Ridge Cut at Blights Landing, Calif. Location.- Water-stage recorder, lat. 38°48'00", long. 1£1°43'25", In NWi sec. 14, T. 11 N., K. 2 E., at Knights Landing. Auxiliary gage is water-stage recorder at station on Yolo bypass near Woodland. Zero of both gages Is set to datum of Corps of Engineers, U. S. Army. , Records available.- October 1940 to September 1943 In reports of Geological Surrey. 1933-38 (low-water periods only) and 1939-43 in reports of Division ~of Water Resources, Department of Public Works, State of California. Extremes.- Maximum discharge during year, 6,580 second-feet Jan. 29 (gage helglft, 32.58 reet;; no flow Oct. 6 to Nov. 17, Nov. 24 to Dec. 23, and Jan.' 18-20. 1941-43: Maximum discharge, 13,600 second-feet Feb. 10, 1942 (gage helglft, 36.80 feet); no flow at times. Remarks.- Records poor, plow Is from Colusa Basin Into Yolo bypass. Cooperation.- Records collected and prepared In cooperation with Division of Wrter Re- sources, Department of Public Works, State of California. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July A«"!. Sept. I 9 0 , 0 940 5,280 682 88 1,030 35 a36 48 57 8 0 0 819 5,000 490 88 970 45 a36 43 58 6 0 0 693 4,660 370 88 502 55 a36 42 52 5 0 0 588 4,290 322 83 670 66 a37 41 58 3 0 0 542 3,9EO 328 88 556 43 a37 48 54 6 S 0 0 445 3,300 352 88 526 86 «37 41 67 1 0 0 372 2,690 340 78 508 14 37 41 60 0 - 0 0 312 2,220 885 84 460 87 33 43 68 0 0 0 286 1,750 424 83 352 37 33 37 69 0 0 0 220 1,220 895 72 880 40 31 37 84 11 0 0 0 119 824 1,840 88 126 41 29 37 96 0 0 0 56 604 E.370 160 88 42 86 37 188 0 0 0 31 544 2,400 80S 41 43 83 37 146 0 0 0 16 412 2,020 286 33 45 22 46 190 0 0 0 9 346 1,690 322 S3 47 20 48 240 16 0 0 0 7 290 1,300 394 14 ' 48 20 48 810"47 0 0 o 4 265 1,030 376 12 45 28 49 0 1 0 0 230 889 334 20 42 26 50 30 19 0 26 0 0 185 657 322 26 41 31 50 27 0 55 p 0 146 540 538 29 a39 35 50 26 21 0 66 0 16 112 441 210 30 a37 39 51 26 0 26 0 800 240 423 205 29 a35 40 S3 85 0 8 0 2,070 436 351 180 29 34 41 54 85 0 0 , : ,480 632 260 128 28 34 42 56 86 25 0 0 ,920 532 66 89 84 a34 41 62 26 26 0 0 >al,000 ,170 472 131 106 81 ft34 48 63 25 0 0 1 ,580 536 104 195 21 a34 41 60 25 0 0 ' ,700 670 88 388 80 a35 41 61 85 29 0 0 ,380 _ S3 730 80 a35 41 67 84 0 0 1,160 ,580 _ 82 970 80 a35 41 68 21 0 - 1,160 5,760 - 78 24 V 48 58 Second- Runoff in Month foot-days Maxima Minima Mean acre-f«et 1 *7Ct AR 3IS December...... 8,320 0 868 16,500 Calendar year 1942 ...... 875,459 13,600 0 755 546,400 ftetA April...... 6 981 13,850 May. 6.524 IP QAft 1,183 ZQ O July...... SO September...... 1,987 240, 81 66.8 3,940 Water year 1942-43 ...... 141,384 6,380 0 387 880,800 a Ho gage-height reecrd; discharge Interpolated or cojnputod on basis of, record* for narrby sta tions. Time Pacific war time. To convert war time tc standard time, subtract 1 hour. 356 0QLBSA AND TOLO BASINS 7olo bypass near woodland, Calif. Location.- Water-stage recorder on left bank, lat. 38°40 I 40", long, laT'Se'.SS", Just upstream from Sacramento & Woodland Railroad bridge, 6 miles upstream from Sacramento bypass, 7 miles downstream from Fremont weir, and 7 miles east of 'Woodland, Yolo County. Auxiliary water-stage recorder 6 miles downstream. Zero of both gages is set to datum of Corps of Engineers, U. 3. Army. Prior to Jan. 1, 1942, datum of upper gage, previously published as at datum of Corps of Engineerr. was at datum 0.73 foot higher. Records available.- -October 1940 to September 1943 In reports of Geological Survey. 1939-43 in reports of Division of Water Resources, Department ot Public Works, State of California. Extremes.- 1941-42: Maximum discharge during year, 272,000 second-feet 'Fab. 8 (gage neigm;, 32.00 feet); minimum, 10 second-feet Nov. 28, 29 (gage height, 11.47 feet). 1942-43: Maximum discharge during year, 150,000 second-feet Jrn. 25 (gage height, 29.65 feet); minimum, 7.5 second-feet July 14 (gage height, 10.87 feet)-. 1940-43: Maximum discharge, that of Feb. 8, 1942; minimum daily, 3 ~second-f eet Dec. 17, 1940. Remarks.- Records good.. Flow is that from Cache Creek and Knights Lrnding Ridge Cut pius flood water passing over Fremont weir; during summer consist? largely of return water from irrigation. Discharge for low flows computed on basis of gage-height record for auxiliary gage. Cooperation.- Records collected and prepared in cooperation with Division of Water Re- sources, Department of Public Works, State of California. Discharge, In second-feet, 1941-42 Daj Oct. Nor. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 59 52 12 16,800 68,800 4,440 700 8,560 584 37 92 52 2 65 4S 18 12,600 48,800 4,810 660 3,060 590 42 86 52 3 50 40 15 8,100 46,800 4,000 700 2,880 611 59 81 54 4 41 35 17 6,100 65,400 8,350 800 1,860 611 72 7S 58 5 44 31 28 5,490 99,800 1,510 1,440 1,370 678 82 78 63 6 37 88 73 5,280 153,000 1,830 3,900 1,160 566 91 76 63 7 33 86 199 4,100 841,000 . 1,030 15,600 1,030 678 92 73 64 8 29 25 360 3,510 856,000 910 19,200 910 611 95 74 6S 9 88 84 400 4,700 810,000 650 14,500 850 590 98 79 76 10 28 24 268 3,700 168,000 850 11,000 800 .678 99 88 95 11 28 83 125 4,440 113,000 1,300 8,350' 860 560 100 88 114 12 SO 21 90 4,380 83,600 1,790 6,680 700 854 100 88 - 103 13 30 18 73 4,100 68,800 1,780 4,810 eeo 84E 97 84 74 14 38 16 67 3,700 46,800 1,720 6,780 660 518 98 86 SI 15 48 16 161 8,880 37,000 3,800 18,600 970 460 60 86 41 16 42 15 1,930 1,860 30,600 5,630 80,400 1,810 880 88 88 52 17 37 15 4,850 8,880 85,800 6,100 80,400 1,580 898 88 98 28 18 32 15 28,900 2,490 81,600 6,780 81,600 1,650 286 91 95 86 19 26 14 42,600 1,830 16,800 4,700 81,600 1,650 163 98 97 99 20 81 14 42,600 850 1)3,600 4,100 20,400 1,580 110 94 94 88 21 19 13 40,400 800 10,300 3,840 19,800 1,610 76 96 87 85 22 20 13 36,000 700 8,100 8,880 16,800 1,370 63 100 71 83 23 19 18 28,900 f 970 7,000 1,650 14,500 1,230 67 108 58 , 86 24 18 12 21,800 5,350 6,870 1,370 11,000 1,160 SB 108 61 51 25 15 18 16,000 11,700 8,780 1,160 8,350 1,160 64 108 46 34 26 14 12 10,000 80,400 5,350 1,030 5,780 1,160 68 100 46 57 27 15 11 5,680 68,800 4,960 910 3,800 1,160 61 103 46 40 28 16 11 4,880 188,000 4,870 850 8,070 750 1 58 IDS 44 44 29 18 10 9, SCO 133,000 800 1,440 1,090 44 108 46 54 _ 1,780 616 38 98 49 78 30 88 18 18,000 113,000 780 "" ' "" 31 50 18,000 87,800 - 750 646 ~ 0S . 62 COLUSA AND YOLO BASINS 357 Discharge, in second-feet, of Yolo bypass near Woodland, Calif., 1941-43 Continued 194E-43 Day Oct. HOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 78 10 '2926 8,140 68,200 2,140 702 1,360 50 22 57 69 2 71 10 1,370 51,000 1,790 751 1,440 55 22 38 67 3 65 11 31 1,280 37,000 1,580 779 1,450 55 82 39 66 4 61 12 33 1,080 26,500 1,160 688 1,420 52 82 38 . 66 5 57 12 30 984 19,200 910 653 1,370 50 22 36 n 6 54 12 31 904 13,500 850 653 1,280 47 22 36 78 7 46 11 40 800 9,000 800 681 904 39 22 38 78 8 as IS 40 716 6,810 750 737 660 38 23 39 78 9 85 12 38 646 5,780 2,420 779 548 30 25 39 83 10 25 12 35 604 5,220 22,800 785 488 28 21 41 82 11 38 18 33 530 4,570 55,400 702 402 31 16 42 80 12 35 18 33 460 3,600 57,800 578 330 35 12 43 90 13 39 12 33 31B 2,420 48,800 566 854 38 9 44 98 14 40 IS 33 224 1,790 38,800 578 203 36 e 79 111 15 41 13 32 179 1,650 33,600 590 157 31 10 1C5 104 16 40 12 31 159 1,580 29,200 625 118 27 39 Fl 101 17 39 12 30 142 1,510 26,500 646 80 25 38 81 92 18 37 16 28 12S 1,440 28,800 632 63 25 34 T6 77 19 33 86 26 113 1,370 19,200 611 64 26 32 T8 \ 67 20 30 45 25 108 1,300 13,500 572 76 22 27 58 59 21 27 74 25 700 1,300 9,400 546 89 21 23 f4 51 22 21 98 ' 24 16,800 1,370 6,440 578 104 22 19 45 49 23 17 71 26 74,000 1,510 4,320 716 107 21 19 42 48 24 14 58 44 133,000 1,650 2,490 744 98 19 21 44 46 25 12 37 250 148,000 1,720 910 723 67 18 84 48 50 ^6 11 27 700 128,000 1,720 928 695 46 18 85 f4 60 27 11 84 800 91,000 1,930 840 674 33 21 87 58 72 28 11 83 970 71,000 2,350 786 816 29 24 31 62 81 29 10 19 1,440 55,400 - 772 952 27 24 31 64 105 30 10 S3 2,210 51,000 - 744 1,130 32 SS 33 70 112 31 10 - 2,630 68,200 - 744 - 44 - 36 !0 - Monthly discharge, in second-feet, 1941-43 Seoond- Runoff in Month foot-days Maximum Minimum Mean ao re-feet 65 31.5 1,940 62 10 20.6 1,230 December...... 330,570 48,600 12 10,660 655,700 Calendar year , 1941 ...... 5,294,521 190,000 10 14,510 0,500,000 21,520 1,323,000 256,000 4,570 65,480 3,636,000 6,100 750 8,349 144,400 895,120 81,600 660 9,837 585,400 Bay...... 40,282 3,060 646 1,299 79,900 10,277 611 38 343 20,380 July...... 2,802 103 37 90.4 5,560 2,881 97 44 73.6 4,520 September...... 1,556 ,114 23 51.9 3,090 Water year 1941-42 ...... 3,857,814 856,000 10 8,926 6,461,000 2,040 1,440 December...... 9,754 8,630 84 315 19,350 Calendar year 1942 ...... 8,937,159 856,000 10 8,047 5,825,000 849,907 148,000 108 27,480 1,686,000 1,300 9,892 549,400 March 744 13,200 811,600 695 41,380 May 27 430 26,440 55 18 31.5 1,870 39 8 23.8 1,460 105 36 54.3 3,340 September ...... 2,291 112 48 76.4 4,540 Water year 1942-43 ...... 1,587,433 148,000 8 4,349 3,149,000 Time basist Pacific standard tine prior to yeb. 9, 1942; Pacific war time thereafter. To convert war time to standard time, subtract 1 hour. 358 COLUSA AND YOLO BASINS Clear Lake at Lakeport, Calif. . Location.- Staff gage, lat. 39°03', long. 122°55 f , in SEi sec. 24, T. 14 N., R. 10 W., at municipal wharf on north side of Third Street in Lakeport. Datum of gage is 1,318.59 feet above mean sea level, datum of 1929. Drainage area.- 420 square miles, including water surface- of lake f65 s-juare miles). Records available.- 1874-1900 (incomplete) and January 1913 to September 1943. Extremes.- Maximum gage height observed during year, 7.58 feet Apr. 7; minimum observed, j.,80 reet Sept. 28-30. < 1913-43: Maximum gage height observed, 11.12 feet Jan. 28, 1914: minimum observed, -3.50 feet Sept. 24-27, 1920. Remarks.- This natural lake is regulated by a concrete overflow dam at outlet, completed in 1915. Capacity between gage heights 0.00 and 7.56 feet (limits stipulated by court decree), about 319,000 acre-feet. Water is released down natural channel of Cache Creek from which it is diverted for irrigation. Cooperation.- Gage-height record furnished by Clear Lake Water Co. Qage height at 10 a.m., In feet, tiater year October 1942 to 3epten*«r 1943 Day Oct. NOT. Dec. Jan. Feb. Mar. Apr. Hay June Jily Aug. Sept. 1 2.62 2.36 2.60 4.02 7.15 6.55 7.48 7.45 6.52 5.45 4.00 2.70 2 2.60 2.35 2.30 4.05 7.15 3.52 7.48 7.42 6.55 5.42 4.00 a. 70 3 2.60 2.35 2.60 4.10 7.10 6.52 7.50 7.40 6.55 5.40 3.90 2.65 4 2.58 2.35 2.60 4.10 7.08 6.55 7.50 7.35 6.55 5.30 3.90 3.65 5 2.56 2.35 3.60 4.15 7.00 6.SS 7.55 7.2S 6.46 5.25 3.85 2.65 6 2.55 2.35 2.60 4.15 6.92 6.62 7.52 7.25 6.45 5.20 3.80 2.60 T 2.55 2.35 2.60 4.18 6.82 6.65 7.58 7.28 6.42 5.20 3.70 2.60 8 3.52 2.35 2.60 4.18 6.82 6.66 7.50 7.26 6.40 5.12 3.70 2.50 9 2. 52 2.35 2.65 4.20 6.76 6.72 7.50 7.25 6.35 5.10 3.60 2.45 10 2.52 2.35 2.36 4.20 6.72 6.85 7.50 7.20 6.30 5.05 3.60 2.35 11 2.52 2.35 2.70 4.22 6.66 6.92 7.50 7.16 6.25 5.02 3.52 2.35 12 2.52 2.35 2.66 4.22 6.66 7.00 7.56 7.15 6.20 5.00 3.50 2.30 13 3.46 2.35 2.68 4.22 6.65 7.00 7.55 7.15 6. IS 4.95 3.50 2.30 U 2.48 2.32 2.66 4.22 6. 65 7.00 7.56 7.12 6.15 4.90 3.45 2.25 15 2.46 2.32 2.78 4.22 6.65 7.06 7.56 7.12 6.12 4.85 3.40 2.25 16 2.48 2.3S 2.76 4.22 6.65 7.10 7.55 7.05 6.10 4.80 3.40 2.25 IT 2.45 2.46 2.76 4.22 6.65 7.10 7.55 7.00 6.02 4.75 3.35 e. as 18 2.45 2.50 2.75 4.22 6.62 7.16 7. 58 7.00 6.00 A.10 3.30 2.18 19 2.42 2.55 2.75 4.22 6.60 7.18 7.55 6.95 5.95 Tt.68 3.25 3.10 20 2.42 2.55 2.72 4.22 6.5S 7.25 7.55 6.95 5.90 4.65 3.25 2.05 21 2.42 2.55 2.76 5.00 6.56 7.25 7.50 6.92 5.85 4.6S 3.10 2.02 22 2.40 2.55 - 2.78 5.95 6.5S 7.25 7.46 6.92 5.80 4.52 3.00 2.02 23 2.40 2.55 5.00 6.62 6.58 7.26 7.45 6.90 5.75 4.50 2.95 2.00 24 2.40 2.52 3.2S 6.92 6.55 7.30 7.42 6.88 5.70 4. SO 2.90 1.95 25 2.40 3.52 3.32 6.96 . 6.50 7.30 7.40 6.65 5.68 4.35 2.8S 1.95 26 2.40 2.52 3.46 7.00 6.52 7.30 7.40 6.80 5.65 4.35 2.80 1.86 27 2.40 2. 55 3. SO 7.00 6.56 7.30 - 7.40 6.80 5.60 4.30 8.80 1.85 28 3.40 2.55 3.65 7.flO 6.5Q 7.32 7.52 '6. 78 5.55 4.8$ 8.80 1.80 29 2.40 2.56 3.85 7.08 7.30 7.55 6.98 6.90 4.28 8. 78 1.80 35 2.40 2.5,6 3.92 7.1« _ 7.40' 7.60 8.60 5.66 4.22 2.70 1.80 31 B.38 - 4.00 7.12 - 7.45 . » - J6.6& - , 4.20 8.70 - Tl»8 baalat Pacific war tine. To convert war tl»« to standard tl»», sub*i*-;t 1 hoar. COLUSA AND YOLO BASINS 359 Cache Creek at Yolo, Calif. Location.- water-stage recorder, lat. 38°43'30", long. 121048'25", In Rio Jesus Maria Brant, 800 feet upstream from highway bridge and half a mile south of Yolo, Yolo County. Altitude of gage, about 60 feet (from topographic map). Drainage area.- 1,150 square miles. Records' available.- JanuaTy 1903 to September 1943. Average discharge.- 40 years, 560 second-feet. Extremes.- Maximum discharge during year, 23,000 second-feet Jan. 22 (gage height, 25.00 feet); no flow for several months. 1903-43: Maximum discharge, 28,700 second-feet plus overflow on right ba^ esti mated as 10,000 second-feet Fetu 28, 1940 Cgage height, 29.0 feet); no flow during some periods In most years. - Maximum stage observed, 29.8 feet ; staff gage reading, Feb. 2, 1915. Remarks.- Records good. Many diversions above station for Irrigation; storage In Clear Discharge, in second-feet, water year October 1943 to September 1945 Day Oct. Ncv. Dec. Jan. Feb. Mar. Apr. Hay June July Attf. Sept. -- 1 0 6.5 491 3,270 1,060 310 1,340 0 2 0 S 406 3,120 1.040 286 1,270 7.5 3 0 5.5 355 3,120 830 266 1,220 2.0 4 0 5.8 303 3,130 495 250 1,160 0 5 0 6 S67 3.110 455 246 1,140 0 6 0 8 240 2,990 405 286 527 . 0 7 0 9 210 2,960 366 430 121 0 8 0 9.5 165 3,040 339 450 36 0 9 0 17 167 2,880 430 450 26 0 10 0 19 158 -2,800 1, 130 370 13 0 11 0 87 140 2,760 1,350 250 5 0 12 0 89 134 1,560 968 221 8.8 0 13 0 23 120 1,160 770 197 l.S 0 , 0 19 118 1,170 690 188 ' US 0 ft 0 13 106 1,170 641 168 . 0 16 0 12 101 1,130 564 159 .6 0 17 0 18 98 1,130 548 149 .4 0 18 1.1 11 93 1,130 580 140 .2 0 19 92 9.5 85 1,090 510 132 0 0 20 109 9 106 1,080 445' 184 0 0 i «J 21 46 a 9,010 1,060 415 198 0 0 22 28 9 11,300 1,180 400 430 0 0 23 13 195 11,600 1,130 380 455 0 0 24 9 1,220 7.360 1,070 357 450 0 0 25 . 6.5 1,410 4,740 1,080 335 405 0 0 26 7 908 4,470 1,110 318 390 0 0 27 6.5 496 4,830 1,280 302 410 0 0 28 6 362 3,900 1,130 894 636 0 0 29 5 . 8,010 3,630 . 882 886 0 0 9fl - 0 Ov 6.5 872 6,940 346 1,200 0 31 578 4,830 "" 361 " 0 " Second- Runoff in Month f cot-days Haziwin Minimal Mean acre-feet October...... 0 0 0 0 0 Novenber...... 331.6 109 0 11.1 658 Decenfoer 8,317.6 2,010 5.5 268 16,500 Calendar year 1942 ...... 428,848.9 24,600 0 1,158 838,700 Jaauary...... 75,681 11,600 35 8,448 160,500 Febr uary...... 58,840 3,S70 1,060 1,887 104,800 Hare j...... 17,396 1,360 288 561 34,600 Apr! 1...... 10,548 l,2*i 124 361 30,910 Hay. 6,865.4 1,340 0 281 13,680 June ...... 9.S 7.5 0 .32 19 July ...... 0 0 0 0 0 Augu St...... 0 0 0 0 0 September...... 0 0 0 0 0 Water year 1942-43 ...... 178,183.0 11,600 0 478 341,500 Peak discharge.- Dec. 89 (4 a.m.) 3,£ sec.-ft.; Jan. (1 a.m.) 83,000 sec.-ft.; Jan. S3 (4 p.m.) 14,eoo sec.-rt. Time basis! Pacific war time. To convert war time to standard tire, subtract 1 hour. 360 COLUSA AND YOLO BASINS North Fork Cache Creek near Lower Lake, Calif. Location.- Water-stage recorder, lat. 39°01', long. 122°33', In NEi sec. 31, T. 14 N., R. 6 w., 500 feet upstream from Sweet Hollow Creek, Smiles upstreair from mouth, and 7 miles northeast of Lower Lake. Dattm of ga&e Is 1,035.60 feet abcve mean sea level, preliminary adjustment of 1929. Drainage area.- 214 square miles. Kecoras available.- July 1930 to September 1943. Average aiscnarge.- 13 years, 193 second-feet. " » Extremes.- Maximum discharge during year, 13,900 second-feet Jan. 21 (gage height, 11.90 from rating curve extended above 3,600 second-feet; minimum, 1.0 second-foot Sept. 22, 23. 1930-43: Maximum discharge, 20jOOO second-feet Feb. 28, 1940 (gage height, 13.9 feet), by slope-area method and logarithmic plotting; no flow at tints' during each year 1930-36. Remarks._- Records good except those above. 1,500 second-feet, which are fair. Several -small diversions above station. Rating tables, water year 1042-43 (gage height. In feet, and discharge, In second-feet) Oct. 1 to Jan. 21 Jan. 22 to Sept. 30 1.2 1.0 2.6 107 5.6 1,810 1.4 0.7 2.6 BO 1.3 2.3 2.8 leo 6.0 1,660 1.6 1.8 3.9 125 1.4 5.6 3.2 228 6.6 2,040 1.6 4.4 3.1 166 1.6 10 3.6 340 7.0 2,600 1.7 7.6 3.6 270 1.7 22 4.0 476 S.O 4,100 1.8 12 3.9 410 1.9 37 4.6 680 9.0 6,200 2.0 22 4.4 626 2.2 67 e.o 910 10.0 8,760 2.3 47 4.9 8«0 Hote.- Same a9 preeed- \ Ing table abore 4.9 feet. Discharge, in seoond-feet, water year October 1942 to September 1943 Das Got. Nov. Deo. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 2.2 6.6 42 366 920 175 182 192 74 20! » 2.6 1.4 2 2.2 5.6 41 299 733 166 170 161 73 2.6 1.4 3 2.0 6.6 61 241 616 . 161 161 143 61 11 2.6 1.4 4 2.0 6.5 202 562 175 154 ' 130 66 IT 2.6 1.4 5 2.0 6.5 41 179 604 158 186 122 62 17 2.6 1.4 6 2.0 8.6 61 168 438 154 182 112 49 17 2.6 1.4 7 2.0 7 96 141 482 168 168 104 46 If 2.6 1.8 8 2.0 S 80 129 462 196 162 97 42 If 2.6 lie 9 2.0 8 108 120 406 338 143 91 40 15 8.3 1.4 10 8.2 7.5 96 114 360 626 138 87 38 14 2.1 1.4 11 3.3 7.6 76 108 336 680 129 83 37 1* 2.1 1.4 1? 2.6 7.6 64 100 310 . 470 122 80 43 15 1.8 1.4 13 2.6 7.6 66 93 285 .406 117 78 40 1* 1.8 1.4 U 3.0 3 50 86 867 398 114 76 37 If 1.7 1.8 15 4.9 10 46 85 252 349 111 75 36 11 1.6 1.2 16 4.0 36 42 63 240 318 106 ,74 31 11 1.6 1.2 17 2.6 372 41 77 232 328 103 70 . 29 11 1.6 i.e 18 2.6 241 39 72 215 307 100 68 28 9 1.6 i.e Ift 2.6 138 37 70 200 273 97 86 87 8 1.6 1.8 20 2.3 76 38 1,070 190 256 96 64 26 8 J.v6 1.8 ' 60 21 2.3 66 38 8,690 190 240 98 x 86 7 1.6 i.e 22 2.3 44 138 4,860 206 230 94 56 86 "67 1.6 i.l 23 Z.Z 39 1.110 5,210 198 215 90 61 86 1.6 1.1 24 , 2.3 36 1,280 2,410 178 , 808 87 60 S4 6 1.7 1.1 25 ' 8.6 34 992 1,380 168 192 84 47 24 e 1.7 . 1.8 26 3.0 S3 . 416 1,100 186 166 83 46. 83 4.4 1.7 -1.41.8 27 4.0 48 271 986 218 178 . 172 44 SS 4.1 1.8 2ft 6.6 60 1,540 866 188 166 . 462 42 US 3.6 1.6 1.4 29 5.5 48 861 1,760 _ 216 307 40 21 3.4 1.6 1.4 30 5.5 43 514 2,140 249 232 43 20 3.1 1.4 1.4 31 5.5 - 447 1,240 - 198 - 61 - 2.6 '1.4 Second Runoff in Month foot-days Maxlmuft Minimum Mean sore- feet 91.9 Putah Creek near Guenoc, Gallf . Location.- Water-stags recorder, lat. 38°46', long. 122°31', In sec. 23, T. 11 N.,R. 6 w., Juet, upstream from dam site and 3i miles downstream from highway bridge at Quenoc. Datum of gage is 913.4 feet above mean sea- level (rlvsr-'-proflle surwy). Drainage area.- 112 square miles, Records available.- fsbruary 1904- to July 1306, July 1930 to September 1943". Average discharge:- IS. years (l$30-43), W7 seconoVteet. Extremes .- Maximum discharge during year, 2O,400 second-feet Jan. El (gage height, 20<.5 feet)', from' rating- curve extended afiow 8,000 second-feet; mlnUaum, 4'.0 ssc-md-feet Sept. 3O. 1904-6r 193G-4S: mxlmum discharge observed,. 24,600 seccnd-feet War. 10, 1904 (gage aal$iS, 20:i fiee-t, datum then la use), from rating curve extended: abo-re 14^500 second-feet; mln-flmmr discharge, 0.& second-loot Ss-gt. 30, Oct. 4, 1932. Remarks.- Becords Small diversions abcree station. Basting taeles, water year 1942-43 height, In feet, and dischargay in t ) 1.2 5 l.ff 34 4.0 41« a.O 3,630 1.1 4.4 1.3 7 2VST 63 4.5 5*S 11.0 6.O20 1.8 6 1.4 9 2.5 102 6.0 754 13.0 3.7SO 1.4 11 1.6 IS 3.0 186 6.0 1,210 15.0 11,700 1.6 18 1.7 SO S.6 290 7.0 lr8TO D£teetarc», in second-feet, water year October 1942 tc Sfcptenbe*- 1943 Day Oct; Hov. Dec. Jan. Fab. Mar. Apr. May JM» Jtaly AttR. Sept. 1 6.6 & 33 154 686 184 154 146 71 16 8 6 2 6 6 31 147 536 167 142 182 64 £6 7.5 6 3 6 6 30 122 424 160 132 109 45 16 7.5 5.5 4 6 6 30 110 36S 241 126 108 40 14 7.5 5.5 5 6 6 29 99 384 197 163 94 36 14 7.6 5.5 6 6 6.5 47 89 878 221 146 8* 32 13 7.5 5.5 7 6 5.6 94 84 511 246 129 80 30 13 7.6 5.5 8 6 6.5 68 7« 405 447 121 ft 28 IS 7 5.5 9 6 6.5 61 73 381 958 115 C9 2« 18 7 5.5 10 6.5 6.6 68 278 1,250 10S 65 26 18. 7 5.5 86* 11 6.6 6.6 48 65 841 716 * 103 63 18 7 5.5 12 6 6.5 44 61 817 506 9S 61 S5 18 7 5 13 6 6.6 41 199 405 94 59 25 11 6.6 4.9 14 6.5 7 39 58 184 405 S9 56 26 11 6.5 4.9 15 6.5 7.5 37 65 173 386 86 55 84 11 6.5 4.9 16 6 8.5 36 53 165 881 83 64 23 11 6.5 4.8 17 6 487 35 58 166 290 79 61 22 10 6.5 4.8 18 6 496 34 49 151 258 76 49 21 10 6.5 4.6 19 6 182 38 47 139 223 74 46 20 10 6.6 4.4 80 5.5 96 33 1,370 138 201 71 45 a20 10 6.5 4.4 21 6.6 62 34 12,400 130 190 70 42 80 10 6.5 4.4 22 5.5 45 81 4,180 165 182 68 38 20 10 6.5 4.4 23 5.5 3d 1,540 4,740 188 167 65 37 80 9.6 6.6 4.4 24 6 33 1,140 1,360 151 164 63 36 19 9 6.5 4.4 25 6 32 714 ' 1,000 148 146 61 33 19 9 6 4.4 26 6 30 381 1,100 306 137 60 32 19 9 6 4.4 27 ^16 36 209 958 878 184 109 SO 17 8.5 6 4.4 28 44 393 808 813 126 478 30 18 e.s 6 4.4 29 6 37 307 8,100 248 331 29 16 8.6 6 4.3 30 6 35 211 8.080 229 192 29 16 8 6 4.3 31 6 180 886 175 . 32 8 6 Seoond- .- Runoff in Month f cot-days Maxiaum Miniaun Mean acre-feet Ooto 186.5 6.6 5.5 6. OS 370- Nov« her...... 1,758.0 496 6 68.6 3,490 Deoerib»r...... 5,985 1,640 29 193 11,870 Caulendar year 1948 109,038.0 9,510 6.5 899 216,300 Jamj ary . 34,476 12,400 47 1,112 68,380 Febi iiarv 7,457 686 ISO 266 14,790 Marc 9,669 1,250 186 309 18, 980 Apri 1...... 3,685 478 60 123 7,310 May 1,864 146 29 59.8 3,680 June 818 71 16 27.1 1,610 Julj 345.0 16 8 , 11.1 684 Augu Bt...... 808.0 6 6 6.71 413 Sept eaber...... 148.0 6 4.3 4.93 894 Ws ter year 1948-43 ...... 66,483.5 12, 400 4.3 1S8 181,900 Peak discharge.- Dec. 23 (9 p.».)~3.110 eec.-ft.) Jan 21 (10 a.m.) 20,400 Bee. -ft.; J»i. 23 (5 a.n.) 8,360 see.-ft.1 Jan. 29 (9 p.m.) 4,070 eeo.-ft.; Mar. 10 (4 a.m.) 1,770 see.-ft. a Ho gage-height record! diecharge Interpolated. Tlae basis; Pacific war tlae. To convert war tine to standard tine, subtract 1 hour. 362 COLUSA AND TOLO BASINS Putah Creek near Winters, Calif. Lo cat ton.- Water-stage recorder, lat. 38°31', long. 122°05», In NEi sec. 28, T. 8 N.*, R. U W., 6 miles v»est of Winters and 8 miles downstream from Capell Creek. Datum of gage is 160.75 feet above mean sea level (river-profile survey). Drainage area.- 614 square miles. Kecoras available.- - June' 1930------to September 1943.-- 1905-si at site at Wlrters, 6 miles downstream; records equivalent except for very low flows. Average discharge.- 13 years (1930-43), 538 second-feet. Extremes.- naxu discharge_ during_ .year,. . 63,000. second-feet Jan. 21 (gage._.._. height, 29.0 feet), from rating curve extended above 28,000 second-feet by slope-area computations; minimum, 6 second-feet Sept. 13. 1905-43: Maximum discharge. 70,500 second-feet Feb. 27, 1940 (gaj-e height, 30.5 feet, present datum), from rating curve extended above 28,000 second-feet by slope- area computations; minimum (at present site), 0.3 second-foot Aug. 2?, 24, 26, 27, 1931, Aug. 7, Sept. 24, 25, 1939. Remarks.- Records excellent except those above 30,000 sscond-feet, whlcf are good, several pumps above station divert water for Irrigation. Rating table, water year 1942-43 (gage 'height. In feet, and discharge. In seoond-feet) 3.6 6.5 4.S 73 7.5 620 1'4.0 7, in 3.S 12 5.1 106 S.O 320 16.0 11,361 4.0 19 5.4 144 9.0 1,320 ie.o 16,901 4.8 87 5.5 800 10.0 1,940 20.0 24,001 4.4 38 6.3 890 11.0 2,750 84.0 40,001 4.6 54 7.0 460 18.0 3,320 Discharge, in second-feet, water year October 1942 to September 1*H3 Day Oct. NOV. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 SO 84 7s 299 1.830 490 366 334 66 25 9.5 10 2 20 24 71 266 1,430 487 333 272 93 24 9.5 6 3 19 24 69 244 1,160 398 319 242 121 24 9.5 7.5 4 19 24, 65 211 985 457 299 216 98 24 9 7 5 19 24 63 197 683 508 299 200 81 34 9 7 6 19 24 66 179 755 463 338 186 74 23 9.5 7 7 19 24 76 165 784 508 305 175 «7 81 9 7 e 19 25 124 154 1,140 589 282 165 61 20 9.5 6.5 9 19 25 184 144 S20 1.840 266 152 67 . 1* 9.6 B 10 19 25 111 1S8 675 8,780 ass 144 54 18 10 & "52 11 22 25 102 131 596 1,780 848 ISO 16 12 6.5 12 21 25 94 127 538 1,860 833 ISS 48 IS'17 11 6.5 13 21 25 * 67 128 493 dl,010 224 187 46 9 6 14 22 25 63 117 458 dS20 216 12fr 45 14 8 8 15 83 26 78 113 419 d735 210 119 45 ?ie S 7 16 84 23 73 110 396 d656 206 117 43 17 6 7 17 25 78 71 106 383 669 200 US 40 17 6 7 18 24 S41 69 101 366 743 194 111 37 17 a , 9 19 84 573 66 94 345 586 188 107 34 17 8 9 20 23 274 66 1,000 330 520, 161 104 34 17 9.5 8 81 22 182 68 38,500 383 481 178 98 33 17 12 S.5 22 22 136 70 11, 600 375 466 174 98 ?* 16 IS 9.5 23 22 112 1,300 12,600 440 438 168 84 34 14 18 9.5 24 22 94 2,660 3,920 411 393 163 78 33 14 12 9 25 22 82 1,860 8,800 370 375 157 , n S3 14 18 9 26 23 73 847 8,180 443 358 163 70 30 is 18 8 27 28 71 475 2,310 S60 343 166 67 38 14 18 9 28 24 73 356 1,760 599 327 388 85 27 14 11 10 29 83 88 749 2,630 .. 341 311 63 26 12 11 10 30 84 as 487 7,740 _ 680 478 «S 86 10 10 * 10 31 84 341 8,780 - . 429 62 " 10 10 " Seoond- Runoff in Month foot-days Maxim* Minima Mean acre-feet October...... 671 86 19 81.6 1,330 November...... 2,956 641 84 98.S 5,860 December...... 10, 317 2,660 63 349 21,460 Calendar year 1942 ...... 305,603 38,700 18 S37 606,200 January...... 9E, 236 38,500 94 2,975 183,000 February...... IS, 601 1,S30 323 664 36,890 March...... 21,046 2,780 387 679 41,740 April ...... 7,996 811 153 267 16,660 May.-...... 4,097 334 62 132 8,130 June ...... 1,503 121 25 50.1 2,980 July 534 25 10 17.2 1,060 August ...... 309.5 12 8 9.98 614 September...... ^ ...... 848.5 10 6 8.06 481' Rater year 1948-4B ...... 161,011.0 38,500 6 441 319, 400 Peak dlsohaawe.- Dec. «4 U a.m.) 3.690 see.-ft.; Jan. 21 (5 p.m.) -83,000 eeo.-ft.j Jan. 23 (4:30 a.S.T 16,800 s«C,-ft.; 0«a. 50 {2 a.m.) 18,500 see. -ft. f Mar. 10 U j».».) 4,680 ww.-JTt. d Doubtful gage-height reuordj discharge emaputed on baele ef reeoturfcrueted gage-height graph. Time baglsi Pacific war tlae. to eomwrt war tl«e to ataudar* tine, (Subtract J howV NAPA RIVER BASIN 363 Napa River near St. Helena, Calif. Location.- Water-stage recorder, lat. 38°29'40", long. 122°25'50", In SEi «ec. '32, T. 8 N.,'ft. 5 W», a quarter of a mile upstream from highway bridge, 1.3 miles northeast Of * Zlnfaadel. and 2.5 miles east of St. Heleoa. Altitude of gage, about 800 feet (from topographic nap). Drainage area.- S3.5 square miles, tiecoral ayaiJtaole.- November 1929 to September 1932, November 1939 to September \1943. ,- raxiiaaffi discharge during year, 7,600 second-feet Jan. 21 (gage height, 11.43 minlmtm. 0.4 second-foot Sept. 29, 30. ^^9-32, 1939-43: Maximum discharge, 11,800 second-feet Feb. 6,-1942 (gage height, 14.6 feet); no flow during parts of Oct. 8-12, 14, 1940. Remarks.- Records good except those above 500 second-feet, which are fair. Small diver*- sions above station for Irrigation. Ratine tables, water rear 1942-43 (gage height, In feet, and discharge. In second-feet) (Shifting-control method used Oct. 1 to Dec. 22) Dot. 1 to Jan. 20 Jan. 21 to Se-rt. 30 0.5 1.2 2.S 374 7.0 2,990 0.6 0.2 1.0 12 1.3 1.4 49 3.2 536 8.0 3,850 .7 1.3 1.1 19 3.0 1.6 77 3.6 9,0 4,810 .8 3.4 1.3 38 6 1.8 110 4.2 1,055 10.0 5,880 .9 7 1.5 63 10 2.1 170 5.0 lk 540 Note.. Same as preced- 17 2.4 6.0 ing table aboY^ 1.5 feet. Discharge, in seoond-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. toy June July Aug. Sept. l 1.3 1.2 7 146 396 91 58 60 14 6 2.6 1.3 £ 1.3 1.5 6.5 91 291 80 59 43 17 6 2i6 1.1 3 1.2 1.6 6 74 226 77 53 38 14 6 2.4 1.1 4 1.2 l.S 5.5 66 199 87 49 35 12 6.5 2.4 1.1 6 1.2 1.6 5.5 57 172 76 66 32 11 4.8 2.2 1.1 6 1.2 1.6 7 52 199 87 59 30 11 5 2.2 1.1 7 1.2 1.6 14 47 266 88 54 28 11 5.5 2.2 1.1 8 1.2 1.6 12 41 210 142 45 25 10 5.5 2.0 1.0 9 ' 1.2 1.6 10 37 180 367 43 24 10 4.8 2.0 1.0 10 1.3 2.7 9 35 142 610 40 24 9.5 4.S 2.0 1.0 11 1.2 1.6 8.5 34 124 378 37 23 9.5 5 2.0 .8 12 1.3 1.6 8 32 108 265 36 23 10 4.8 i.e .8 13 1.2 1.5 7.5 29 96 199 36 go 10 4.5 1.8 .8 14 1.2 1.6 7 28 88 204 34 22 10 4.5 2.0 .6 15 1.2 2.7 7 27 83 175 33 21 9 4.1 2.0 .6 16 1.2 5.5 6.5 26 88 146 32 20 8.5 4.1 1.8 .6 17 1.2 156 6.5 24 85 161 31 19 8 4.5 1.8 .6 18 1.1 234 6.5 22 73 142 30 18 7.5 4.5 1.8 .6 19 1.1 103 6 22 64 117 29 18 7 4.5 1.8 .5 20 1.1 48 ' 6.5 921 62 103 27 18 6.5 4.1 1.6 .5 21 1.1 19 7.5 5,620 60 91 27 17 6.5 4.1 1.6 5 22 1.1 11 22 1,480 87 87 26 15 6.5 3.S 1.6 .5 23 1.1 8 854 1,510 102 79 25 14 6.5 3.8 1.6 .5 24 1.1 7 630 638 77 74 25 14 6.5 3.4 1.6 .5 25 1.1 6 424 458 74 70 24 14 6.5 3.1 1.8 .5 26 1.2 5.5 170 434 151 67 24 14 6.5 2.8 1.6 .5 27 1.3 8 110 518 138 63 40 14 6 2.8 - 1.6 .5 28 1.5 11 162 442 105 59 136 13 6 2.8 1.6 .5 29 1.3 8.5 166 1,200 85 112 12 4.8 2.8 1.4 .4 30 1.2 7.5 123 1,360 79 76 12 5.5 2.6 1.3 v :4 31 1.2 124 614 64 12 2.4 1.1 Month foot?Slys "o* Minimum *y^ean acre-feetRunoff in Octo her...... 37.3 1.5 1.1 1.20 74 Hove 663.8 234 1.2 22.1 1,320 Decsnber...... 2,945.0 " 854 5.5 95.0 5,840 Calendar year 1942 52,256.6 7,240 .9 143 103,700 Janu ary * 16,285 5,820 22 525 32, 300 Febr 3,946 " 396 60 141 7,830 Itaro 4, 413 610 59 142 8,750 Apri 1...... 1,365 136 24 45.5 2,710 May. 694 60 12 22.4 1,380 June 266.8 17 4.8 8.89 529 July 133.9 6.5 2.4 4.32 266 Augu st ...... 57.8 2.6 1.1 " 1.86 115 September...... 22.1 1.3 .4 .74 44 ffater year 1942-43 ...... 30,829.7 5,820 .4 84.5 61,160 Peak discharge.- D so. 23 (11 p.m.) 1,490 sec. -ft.; Jan. 21 (12:30 p.m.) 7,600 sec.-f1;.; Jan. 23 (7 p.m.) S.1OO seo.- ft.; Jan. 29 (9:30 p.m.) 2,750 sec. -ft. j Bar. 10 (6:30 pfm.) 875 aec.-ft. Tlme baa la; Pacif Lc war time. To convert war time to standard time, subtract 1 hour. 364 HITffiR BASIK Conn Greek near St. Helena, Calif. Eoeatlon..- Water-stage recorder, lat. SB0!^ 1 , long. 122°24', In NWi sac. 3, T. 7 N., R. , 5 W.? a quarter of a mile upstream from, ftlgtoiay bridge, 4 miles south erst of St. Helena and 6 miles upstream from mouth. Altitude of gage, about 180 feet (from topographic map). Drainage area.- 52. Q square miles. Recbrds SvUTable .- November 1929 to Septeniter 1943. Averagfe 'dlflcharlieT- 15 ye*rs, 37.3 second-feet. Extremes .- Maximum dlscftarge during year, 4,70C second-feet Jan. 21 (gage height, 8.95 reet J ; no flow for parts of several ooat&s.. 1930-431 Maximum discharge, 7,700 second-feet Feb. 27, 1940 (gage height, 11.80 feet), from rating curve extended above 6,000 second-feet; no flow for several months each year. Remarte.- Records good except those for Jan. 20-31 and those for period o* no gage^helght record, which are fair. Small diversions above station for irrigation. Rating tables, water year 1948-43 (gage height, in feet, and discharge. In second-feet) (gbifting-control.method used Oct. 14 to Nov. 3, Nov. 81 to Dec. 22, Hay 10 to July 22) Oct. 1 to nur. 10 Bar. 11 to July 22 1.3 O 1.9 £4 3.1 205 6.0 1,165 1.5 0 1.9 81 1.4 .6 2.1 42 3.3 269 5.5 1,525 1.55 .4 2.0 31 1.5 8.0 2.3 64 3.6 388 6.1 1,99O 1.6 1.3 2.1 41 1.6 4.8 8.6 90 3.9 S30 6.S 2,570 1.7 ' 4.4 2.8 58 1.7 10 2.7 119 4.2 68O 1.8 12 2.3 64 1.8 16 8.9 156 4.6 910 Hote.- Sam* as preced ing" table above 8.3 feet. Discharge, in second-feet, watar year October 1948 to September ]£43 Daj Oct. HOT. Dec. Jan. Feb. Mar. Apr. Hay June July Attg. Sept. 1 0 2.4 3.5 18 154 35 25 16 7 1.5 2 0 8.4 3.8 11 121 33 24 14 6 1.5 3 O 8.9 3.8 10 9S 33 23 13 4.9 1.5 4 0 a4 Z.8 9.5 80 39 22 13 4.4 1.3 5 0 a3.5 3.8 8.5 74 33 28 12 4.4 1.1 6 0 a3 4.1 8 63 35 23 11 4.0 .7 7 O a3 5.5 8 82 36 21 10 3.6 .7 8 0 a3 4.4 7.5 68 59 20 10 3.6 .7 9 ' O a3 4,1 6.5 57 156 19 9.5 3.6 ,4 10 0 a6 4.1 6.5 50 239 18 8.6 3.6 .3 11 0 a4 4.1 6 44 136 17 8.6 4.0 .1 12 0 aS. 5 4.1 6 40 107 IV 8.5 4.0 0 13 0 a3.5 4.1 6 36 90 16 8.5 5.6 0 14 .1 a3.5 3.8 5.5 34 93 16 8.5 3.6 0 15 1.1 a5 3.8 5.5' 38 70 16 7.5 3.2 0 16 1.4 alO 3.S 5.5 32 60 16 7.5 2.6 .1 17 .6 s.20 3.8 5.5 30 84 16 7.5 2.0 .3 18 0 a30 4.1 5 28 68 15 7 1.7 .2 19 0 al5 4.1 4.8 87 56 15 7 1.7 .1 20 0 aS 4.1 469 27 50 15 6 1.7 0 21 0 S.5 4.4 2,500. 27 46 14 6 1.7 .8 . 22 0 4.4 8.5 704 32 43 14 5,5 ' 1.7 .1 23 .2 4.1 810 720 32 . 39 13 4.9 1.7 0 24 1.0 3.8 133 269 28 36 13 4.9 1.7 0 25 1.8 3.5 88 184 32 33 12 4.9 ,1.5 0 26 2.0 3.5 29 163 63 31 12 4.9 1.5 O 27 2.0 4.1 17 182 50 29 80 4.9 1.3 0 28 2.2 4.4 22 174 39 28 40 e.e 1.3 0 29 2.2 3.8 19 366 . S9 26 e.e 1.1 0 2.2 3.8 14 416 3S 18 4.9 1.3 0 I? 2.2 13 217 SB 7 0 « « Runoff in Hontb ££& »«* Nioinw 11 *B acre-feet Ooto her...... 19,0 8.2 ' 0 0.61 38 Hove *ber...... 176.6 30 2.4 5.89 3SO Deoember...... 638.6 210 3.5 20.6 1,270 Calendar year 1942 ...... 23,768.2 2,910 0 65.1 47,140 Janu ary 6,491.3 8,500 * > ?09 12,880 Febr 1,480 154 27 58.9 , 2,940 Marc 1,895 239 28 61.1 l 3,760 Apri 1...... 564 40 18 18.S 1,120 May. 252.4 16 4.9 8.14 301 June 88.0 7 1.1 2.93 176 July 10.8 1.5 0 .35" 21 Attgu St...... 0 0 Q, 0 0 September ...... 0 0 0 0 . 0 Water year 1942-43 ...... 11,615.7 2,500 0 31.8 2S,06O- Peak discharge.- t>eo. 23 (8~«30 p.m.) 457 aec.-ft.; Jan. 21 (12r30 p.m.) 4,700 sec. -ft. | Jan. 29 (7s30 p.m.) 779 aeo. -ft.; Mar. 10 (4t30 a.m.) 480 sec. -ft. Time basis: Pad] ic war time. To convert war time to standard time, subtract 1 hour. RUSSIAN RIVER BASIN 385 East .Fork Russian River near Calpella, Calif. - Location,- WHter-stBige recorder, lat. 39°15', ,long. 123°09', In sac. 13, T. 16 N., R. 12 Wi, i mile downstream from Cold Creek and 3 miles east of Calpella. Altitude of gage, abouti 720 feet (Iroai topographic map). Drainage area.- 96.9 square miles. Records available.* November 1941 to September 1943. Extremes.- Maximum discharge during year, 11,200 second-feat Jan. 21 (gage height, 13.67 reet ), from rating curve extended above 5,000 second-feet by logarithmic plotting; minimum, 16 second-feet (regulated) Nov. 7, 8. 1941-43: Maximum discharge, that of Jan. 21, 1943; minimum, that of Nov. 7, 8, 1943. Remarks.- Records excellent. Small diversions above station for'irrigation. r".ow affected oy diversion from Eel River through Potter Valley power plant (see p. 377). Rating tables, water year 1942-43 (gags height, in feet, and discharge, In se«ond-feet) Oct. 1 to Jan.'81 Jan. 22 to Sept. 30 1.7 60 3.8 455 V.O 8,000 1.8 75 3.0 F54 2.0 90 4.2 585 8.0 2,850 2.0 94 3.4 746 8.3 128 4.6 735 9.0 3,900 2.3 132 3.8 455 2.6, 173 5.0 905 10.0 5,200 2.6 178 3.0 246 5.5 1,140 11.1 6,860 Note.- Same as preceding 3.4 340 6.0 1,390 table above 3.8 feet. Discharge, in second-feet, water year October 1942 tc September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. Bay -June July A-rg. Sept. 1 171 101 253 491 524 283 310 294 846 98 119 142 2 173 156 290 431 473 276 300 285 236 98 128 143 3 116 180 259 385 435 876 296 276 236 103 143 148 4 96 174 240 362 458 278 294 274 238 85 151 151 5 152 175 244 335 406 276 401 267 234 84 167 152 6 165 173 496 304 3S2 278 324 263 212 103 152 132 7 167 72 346 304 600 891 310 258 200 136 140 135 8 166 71 365 295 602 456 303 248 189 141 111 149 9 165 157 498 283 491 671 296 256 172 139 140 152 10 116 173 340 279 435 956 289 254 167 142 157 151 11 105 172 292 272 404 514 285 254 164 102 152 151 12 161 175 275 268 380 426 280 254 124 131 16k 157 13 176 158 272 266 367 385 280 250 112 146 154 154 14 170 115 259 264 349 473 276 248 142 149 145 151 15 187 169 253 261 341 385 272 242 136 151 107 143 16 188 327 250 257 329 336 267 240 109 145 139 145 17 117 S97 230 255 322 362 265 242 85 127 164 156 18 102 511 242 250 312 324 267 236 79 109 162 157 19 158 277 240 253 305 346 263 240 75 137 162 160 20 173 246 261 2,930 300 334 263 232 78 107 148 154 21 171 236 255 6,840 298 327 269 232 88 160 1361 127 22 176 232 1,680 3,520 ' 303 317 261 230 102 158 151 128 23 173 232 2,410 2,980 291 305 261 226 104 160 154 132 24 115 238 1,390 950 285 298 258 224 114 143 152 129 25 100 232 S33 739 283 278 258 172 114 115 146 139 26 158 252 485 715 300 300 256 160 118 147 142 157 27 176 633 572 755 291 291 386 164 96 148 138 152 28 175 286 1,810 699 283 285 507 168 100 149 129 135 29 175 261 642 1,440 446 354 154 97 155 135 148 30 177 257 627 977 359 312 162 97 158 136 157 31 116 578 642 322 201 143 136 Second- Runoff in Month fee t-days Maximum Hinimun Mean ao re-feet Octo ber...... 4,735 188 96 153 9,390 Hove Bber 7,038 633 71 235 13,960 Deceoiber...... 17,187 2,410 830 55* 54,090 Ca Lendar year 1942 126,974 4,440 68 348 251,800 Janu ary. . . 29,002 6,840 250 936 57,520 Febru&ry 10,549 602 283 377 20,920 March...... 11,454 956 276 369 28.720 1...... 8,963 507 256 299 17,780 & 7,206 294 154 232 14,290 June 4,264 246 75 142 8,460 July 4,069 160 84 131 8,070 Attgu 4,447 167 107 143 '8,820 Septeaber ...... 4,387 160 127 146 8,700 ftater year 1942-43 ...... 113,301 6,840 71 310 284,700 feels, discharge.- Dec. 22 (12 p.m.) 5.500 see. -ft.: Jaii. 21 (5 a.m.) 11,200 sec. -ft.; Jan. 23 (41'3'ff a.m. J ^,780" sec. -ft. To convert war time to standard time, subtract 1 hour. 366 RUSSIAN RIVER BASIN Russian River near Hopland, Calif. Location.- Water-stage recorder, lat. 39°01'35", long. 123°07'45", In Raucho de Sanel Grant, at highway bridge a quarter of a mile downstream from McNab Creek, 4 miles north of Hopland, and 17 miles upstream from Sulphur Creek. Datum of gage Is 497.43 feet above mean sea level, datum of 1929. Prior to Sept. 9. 1943, wlrs^weleht eaae at same site and datum. Drainage area.- 345 square miles. Records available.- December 1939 to September 1943. Extremes.- Maximum discharge during year, 34,000 second-feet Jan. 21 (gag° height, 26,12 rest), from rating curve extended above 21,000 second-feet: minimum observed. 40 second-feet (regulated!) Oct. 27. 1939-43: Maximum discharge, 34,100 second-feet Feb. 28, 1940, from rating curve extended above 30,000 second-feet; maximum gage height, that of Jan. 21, 1943; minimum discharge, 28 second-feet Dec. 4, 1939. Flood of December 1937 reached a stage of about 30.0 feet, from floodmarks. Remarks.- Records good during September, fair October to August. Gage reid once or twice aaTiy, with additional readings during periods of high water. Several small diversions above station for Irrigation. Flow also affected by diversion Into ba^ln, see "Remarks" for East Fork Russian River near Calpella. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 161 135 450 1,60O 1,830 5S2 599 687 372 100 a!40 132 ? 146 116 617 1,300 1,510 560 566 577 363 97 ISO a!35 3 a!32 97 485 1,080 1,280 544 544 500 331 100 a!30 138 4 alls 166 422 902 1.2SO 544 522 450 336 100 &140 158 5 104 164 37S 807 1,170 544 852 440 290 90 144 148 6 148 164 638 709 1,030 533 687 400 a270 110 a!60 141 7 148 161 S12 660 1,510 560 610 391 255 a!40 alSO 125 R 148 128 566 607 1,750 588 604 391 242 150 a!40 158 148 95 972 550 1,550 1,030 588 377 230 150 alSO 138 10 148 145 686 a530 1,250 1,630 566 372 220 150 alSO 158 126 158 529 a510 1,110 1,200 528 354 212 120 a!60 141 104 158 469 488 974 960 500 354 204 130 a!60 144 148 164 439 438 912 828 480 326 162 150 a!60 1 151 155 153 406 446 358 936 470 331 141 148 alSO 148 IS 169 153 374 438 816 792 440 326 158 150 alSO 148 158 192 363 421 804 714 425 326 151 150 a!20 141 148 1,370 344 412 720 810 415 322 119 140 a!40 144 99 1,360 329 396 7O4 744 400 a320 allO 130 alSO 148 124 661 322 388 665 676 40O 317 alOO 120 aieo 165 20 148 456 329 4,230 638 632 391 299 a95 ISO al60 155 153 374 351 22,000 632 610 435 295 100 a!60 al60 141 153 336 1,300 12,300 638 395 290 110 160 140 188 23 158 322 8,590 14,500 610 386 277 120 170 alSO 128 24 153 314 6,260 5,580 580 533 372 268 132 a!60 150 132 25 106 3O7 4,040 3,110 560 522 368 229 132 148 al40 135 a94 290 1,320 2,650 676 354 184 135 130 140 144 82 1,330 1,240 2,650 687 5BE 180 138 150 141 151 no 155 661 3,980 2,420 610 l.STO 196 108 160 132 148 155 431 2,190 3,310 750 i.Bto alSO 102 160 a!3Q 138 164 439 1,710 3,960 _ 720 9«i 229 97 a!60 108 144 31 158 1,920 2,420 - 692 242 ** alSO 128 - ^ , / Seccnd- ffimoff in Month foot-days bcimnsi ****** Mean acre-feet 11,050 1,370 96 December...... 43,330 8,590 322 1,398 85,940 Calendar year 1942 ...... 298,791 19,000 82 819 598,600 1,830 March...... May...... 10,430 687 180 336 20,690 5,525 372 95 184, 10,960 4,243 170 90 8,420 4,423 160 120 September...... 4,236 155 126 141 8,400 Water year 1942-43 ...... 246 ,649 38,000 88 676 489,SOO a No gage-height record; discharge computed oji basis of records for stations neiir Calpella and .Healdsburg. Time basis; Pacific war time. To convert war time to standard time, .subtract 1 hour. RUSSIAN RIVER BASIN 367 Russian River near Healdsburg, Calif. Location.- Hater-stage recorder, lat. 38°36'45", long. 122°50'05", in SEi sec. 22, T. 9 N., R. 9 W.,2 miles east of Healdsburg and 34 miles upstream from Dry Creek. j Datum of gage is 76.84 feet above mean sea level, datum of 1929 (levels by Corps of Engineers, U. S. Army). Drainage area.- 766 square miles. Record! available.- December 1939 to September 1943. Extremes.- naxlmum discharge during year, 53.300 second-feet Jan. 21 (gage height, 25.45 reet); minimum, 69 second-feet (regulated) July,17. 1939-43: Maximum discharge, 67,000 second-feet Feb. 28, 1940 (gage height, 30.0 feet), from rating curve extended above 50,000 second-feet: minimum, that of July 17, 1943. Flood of December 1937 reached a stage of 30.8 feet, from floodmarks. Remarks.- Records excellent. Small diversions above station for irrigation. Flew also affected by diversion into basin, see "Remarks" for East Russian River near Calpella. Revisions.- Revised flguresof discharge, in second-feet, for water year 1942, superseding tnose published In Water-Supply Paper 961, are given herein. Dec. 6...... 1,690 Second- Maximum Minimum Mean Runoff In Month foot-days acre-feet 173,091 22,400 480 6,684 343,500 Calendar year 1941 9SS.S8S 29,000 154 2,658 1,862,000 Water year 1941-42 786,865 41,6OO 111 2,016 1,469,000 Discharge, in second-feet, water year October 1942 to September 1945 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Attg. Sept. 1 129 167 568 2,580 4,590 1,580 1,240' 1,260 412 164 141 119 ?, 156 160 530 2,200 5,610 1,260 1,150 1,060 488 164 158 119 140 140 658 1,880 2,980 1,180 1,050 948 483 161 187 126 4 142 160 593 1,610 2,650 1,190 1,000 864 442 152 130 127 5 155 162 550 1,42O 2,560 1,210 1,220 798 429 156 13£ 127 116 169 534 1,260 2,240 1,270 1,450 738 412 160 141 ISO 118 172 1,050 1,140 2,670 1,550 1,190 695 592 144 150 132 131 174 960 1,040 5,520 1,820 1,090 656 564 132 160 ISO 138 167 944 952 3,060 5,510 1,040 620 552 144 144 127 10 150 138 1,130 881 2,580 5,540 978 S90 356 150 132 132 164 140 905 sas 2,280 4,590 924 565 552 150 152 156 1?. 160 162 765 778 2,080 5,150 870 546 317 152 136 155 156 169 667 730 1,880 2,550 832 657 510 147 141 155 142 167 610 701 1,740 2,450 79S 524 288 144 141 IS 159 174 564 677 1,610 2,240 771 610 270 152 144 141 in 169 190 614 654 1,600 1,930 749 601 266 158 147 138 17 167 1,240 486 631 1,490 1,830 722 488 262 150 152'132 132 1ft 169 1,960 458 589 1,580 1,850 690 476 234 168 150 '155160 1,560 431 580 1,260 1,610 676 460 215 166 141 130 990 420 3,270 1,180 Ij470 645 462 203 150 144 152 20 * 138 695 435 57,700 1,150 1,370 640 442 193 141 147 152 150 559 551 38,800 1,410 1,290 640 429 186 165 141 ISO 23 154 470 7,410 28,800 1,430 1,190 625 416 180 168 136 122 24 159 425 10,400 16,700 1,220 1,110 610 408 180 158 144 119 25 164 401 8,220 8,210 1,110 1,040 596 396 177 158 144 122 26 150 590 4,030 6,680 1,640 1,010 676 380 177 152 144 125 136 468 2,540 5,860 1,930 990 695 560 177 160 138 126 28 146 1,210 4,540 6,060 1,550 936 2,140 344 180 132 152 ISO 29 167 796 6,670 7,660 _ 1,210 2,520 - 352 174 132 187 156 162 640 5,300 10,800 « 1,870 1,670 329 167 135 182 ISO 31 167 ~ 5,060 6,430 - 1,460 - 544 - 141 119 - Second- Runoff in Month foot-days Maximum Minimum Mean acre-feet 4,534 169 116 146 8,990 14,546 1,960 138 478 28,450 December ...... 64,163 10,400 420 2,070 127,500 Calendar year 1942 ...... 630,184 41,600 111 1,727 1,250,000 195,941 38,800 580 6,521 388,600 87,980 March...... 56,416 5,540 936 - 111,900 May* 29,474 2.32O 576 982 58,460 17,469 1,280 329 563 34,630 Juiid . 8,536 488 167 286 17,030 4,644 164 152 150 9,210 September...... 5,884 141 119 129 7,700 Water year 1942-45 ...... 461,700 58,800 116 1,265 915,800 Pacific war time. To convert war time to standard time, subtract 1 hour. .368 RUSSIAN RIVER BASIN Russian River at Guernevllle, Calif. Location.- Wire-weight gage, lat. 38°30'30", long. 122°59'36", In NWi sec. 32, T. 8 N., " R. 10 W., at highway bridge In Guernevllle, 64 miles upstream froir Austin Creek. Datum of gage Is 8.67 feet above mean sea level, datum of 1929. Drainage area.,- 1,330 square miles. Records available.- December 1939 to September 1943. Extremes^- ffaxlmm discharge during year, 69,200 second-feet Jan. 22 (gage height, 39.S reet from graph based on gage readings), from rating CUTVB extended above 40,000 second-feet; minimum not computed. 1939-43: Maximum discharge, 88,400 second-feet Feb. 28, 1940 (gage height, 46.8^ feet); Minimum observed, 88 second-feet Aug. 19, 20, 1940. Flood of December 1937 reached a stage of about 42.5 feet, and flood of, February 1937 about 35.2 feet, both from floodmarks. Remarks.- Records good except those for period of Indefinite stage-discharge relation In October and November, which are fair. Computed monthly mean discharge, July to Sept ember, considered good. Oage read twice dally, with additional reallngs In periods of high water. Small diversions above station for Irrigation. Flow also affected by diversion Into basin, see "Remarks" for East Fork Russian River near Calpella. Discharge, in second-feet, water year October 1942 to SepteBbe* 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 96 180 769 3,700 8.450 2,540 1, 860 1,830 520 2 119 ieo 697 s;iso 6,170 2,230 1, 700 1,580 see 3 138 170 733 2.750 4.960 2,040 1, 560 1,410 580 4 152 160 751 2-370 4,320 2.14O 1, 500 1,280 560 5 154 170 670 2,090 4,000 2,050 1, 630 1,170 540 6 146 180 648 1,860 3,600 2,150 1, 9SO 1,080 520 7 128 200 850 1,670 3,600 2,290 750 1,010 492 8 lie 203 1,230 1,520 4,540 2,870 I'$ 590 956 470 9 130 203 1,080 1,390 4,320 4,840 510 891 440 10 156 176 1,320 1,290 3,800 8,540 i; 440 842 420 11 IBS 160 1,800 1,200 3,360 8,360 370 801 400 12 184 163 1,010 1,140 3,070 5,720 i- 290 765 390 13 170 176 895 1,080 2,820 4,490 1,230 742 370 14 150 190 614 1,020 2,590 4,270 11,186 720 550 15 140 210 751 981 2,400 3,900 1 140 688 350 > 150 145 > 130 16 150 244 692 954 2,290 3,360 1 100 659 310 17 160 859 643 918 2,210 3,090 I' 050 639 300 18 170 5,010 607 878 2,050 3.140 010 m 290 19 ISO 2,690 564 842 1,910 2,870 976 «07 870 20 170 1,910 548 4,370 1,790 8,570 936 696 050 21 150 1,290 544 41,700 1,780 S,3SO 909 687 840 1 22 150 975 580 66,100 2,040 2,150 900 563 889 23 160 796 8,440 54,90d 2.300 1,980 889 547 814 /, 24 170 688 15,300 36,700 2,070 1»820 860 530 BIO 25 180 598 14,900 15,300 1,900 1,730 637 520 200 26 . 180 548 e.iio ll.OOO 2,400 1,640 810 500 200 27 170 540 4.660 9.380 3.500 1,610 900 490 195 28 160 1,100 4,580 8,020 3,020 1,520 2 100 470 195 29 ieo 1,120 9,810 11,000 _ 1,600 s 140 460 190 30 170 880 5,200 21,400 - 2,430 2 320 450 190 51 180 - 4,160 13,100 - 2,180 - 480 - Second- H^ Runoff In Month foot-days !! »< my KinlmuB **"il aore-f«et October...... 4,817 184 9* 155 ' 9,560 QJCQ NovoHiber U .VQV 5,010 160 608 39,610 December...... 92,658 16,300 544 2,986 183,600 _ _ - _ _ Calendar year 1942 ...... 1,012,057' 64,300 96 s.rrs 8,007,000 January...... 323,703 6«,100 848 10,440 648,200 February . . . 91 180 8,460 1,780 3,855 180,800 March...... ?...... 94*460 »,4Mviun 1,580 3,047 187,300 April...... 41*480 8,140 810 1,383 88,870 Itay...... 84 469 i 830 460 780 48,530 June...... ,,, 10,419 580 190 ?fi 8g,g2g ' July...... 4,660 * - ^ Its 9,880 August...... 4»4W 146 8,980 Soptwribor . Si900 , m _ ISO 7,740 Water year 1942-43 ...... 716,108 66,100 _ 1,962 < 1,480,000 Vote.- Stage-discharge relation Indefinite Oct. 13 to HOT. 6, lay ~24 to faag_t, 'Stone Mfi, aftf June B6> .to Sept. 30; discharge computed on basis of discharge wsurenents ana r«ooM TVf station near Healdsburg. i Tims basis: Pacific war tine. To convert war time to standard tl>e, subtract 1 hour. RUSSIAN RIVKR BASIN 369 Dry Creek near Cloverdale, Calif. Location.- Water-stage recorder, lat. 38°45% long. 123°05f , In sec. 4, T. 10 N., R. 11 W., &00 feet downstream from Smith Creek and 5 miles southwest of Cloverdale. Alti tude of gage, about 320 feet (from topographic map). Drainage area.- 96.4 square miles. Records, available.- November 1941 to September 1943. Extremes.- Maximum discharge during year, 21,900 second-feet Jan. 21 (gage height, 16.65 reet), from rating curve extended above 5,000 second-feet on basis of velocity-area studies and logarithmic plotting; minimum, 0.7 second-feet Sept. 23. 1941-43: Maximum discharge, that of Jan. 21, 1943; minimum, that of Se*>t. 23, 1943. Remarks.- Records good except those below 10 and above 1,000 second-feet, which are fair. No diversion above station. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June JuJ.y Aug. Sept. 1 1.6 3.0 24 208 525 150 113 88 30 9 2.6 1.1 ? 1.5 3.2 25 170 406 137 106 76 25 9 2.5 3 1.5 4,4 23 144 329 137 97 70 23 8.5 2.4 1.1 4 1.4 4.4 20 122 315 140 97 61 20 8 2.4 1.1 5 1.4 3.8 16 108 269 140 196 56 19 8 1.4 3.3 39 97 235 143 129 54 19 7.5 JJ.5 1.0 7 1.5 3.S 60 90 339 143 116 51 18 7.5 2.4 1.0 8 1.5 4.4 56 79 273 282 110 46 17 7 9 l.S 4.7 SB 72 247 463 100 44 16 6.5 2.3 1.2 10 2.1 4.4 60 67 215 926 94 40 16 6 2.2 11 4.7 4.4 48 65 200 593 88 39 16 5.5 2.0 1.2 3.4 4.1 40 60 182 430 82 37 16 5.5 2.6 4.1 40 55 169 350 76 35 16 5.5 1.8 1.0 2.3 4.7 34 53 159 355 73 35 15 5.5 l.S 1.1 15 3.2 16 29 52 ( 146 281 70 33 14 5.5 1.9 1.1 3.0 118 26 50 153 247 67 32 13 5.5 1.9 1.1 2.6 405 23 48 150 261 61 32 13 5.5 2.0 18 2.5 201 21 46 12S 219 58 30 12 5 1.9 2.5 105 20 45 119 193 56 29 11 5 20 2.3 56 26 1,700 113 1S1 56 28 11 5 1.7 ,S 21 2.3 35 28 11,700 113 166 56 26 11 4.7 1.7 .3 2.3 25 436 3,320 176 156 51 25 11 4.7 1.6 .3 9T 2.3 20 1,460 3,390 143 142 51 24 11 4.4 1.6 .8-.8 24 2.5 IS 1,030 1,440 128 132 46 23 11 4.1 1.7 25 2,6 16 693 840 116 126 44 21 10 3.9 1.6 .3 2.S 14 300 615 186 126 44 21 10 3.7 1.6 1.0 2.S 79 215 477 190 116 112 20 10 3.3 1.4 1.0 3.4 48 1,180 437 162 110 251 19 9 3.1 l.S 1.0 3.4 34 537 1,390 181 149 19 9 2.9 l.S 1.0 _ 9 2.9 1.2 .9 3.2 28 320 1,430 146 110 20 ' 31 3.0 - 25S 772 - 122 " 25 " 2.6 1.1 Second- Runoff in Month foot-days Maximum Minimum Mean ao re-feet 75.6 4.7 1.4 2.44 ieo 1,275.2 405 3.0 42.5 2,680 December...... 7,175 1,460 16 231 14,230 Calendar year 1942 ...... 78,406.8 4,920 1.4 215 155,600 29,142 11,700 45 940 67,800 5,886 525 113 210 11,670 March 7,293 926 110 235 14,470 April...... 2,759 251 44 92.0 6,470 1,159 88 19 37,4 2,300 441 30 9 14.7 876 July...... 170 .8 9 2.6 5,<51 339 August 58.8 2.6 1.1 1.90 117 September...... 30.2 1.3 .8 1.01 60 Water year 1942-43 ...... 55,466.6 11,700 .8 162 110,000 Peak discharge.- Dec. 23 (12»30 a.m.) 3,290 see.-ft.? Jan. 21 (9,30 a.m.) gL.900 »*c.-f (9 p.B.J 5,(520 seo.-ft.j Jan. 29 (6«30 p.m.) 2,440 seei-ft. «*,»w ««c. r Jan. 99 Time basis; Pacific war tin*'. To convert war time to standard tine, subtract 1 hew. 370 RUSSIAN RIVER BASIN Laguna de Santa Rosa near Graton, Calif. Location.- Water-stage recorder, lat. 38°27', .long. 122°50', In sec. 14, T. 7 N., R. 9 w. in Mollnos land grant, a quarter of a mile downstream from Santa Ro^a Creek and 2 miles northeast of Graton, Sonoma County. Datum of gage Is 40.00 feet above mean sea level, (Corps of Engineers, u. S. Army, reference mark); gage readings have been reduced to elevations above mean sea level. Records available.- February 1940 to September 1943. Extremes.- 1940-43: Maximum contents during period, 61,400 acre-feet Feb. 23, 1940 (elevation, 72.1 feet); contents less than 500 acre-feet and not computed for several months each year. Maximum contents during flood of December 1937, 49,000 acre-feet (elevation, 69.8 feet), from Information by Corps of Engineers, u. S. Army. Remarks.- The laguna Is a natural water channel and overflow basin connecting Santa Rosa Creek, Mark west Creek, and other smaller creeks with Russian River. During floods direction of flow nay be either to or from Russian River and the lagum acts as a natural regulator of floods on lower Russian River. Contents shown ar3 for midnight of date Indicated. Midnight elevations obtained from a constructed graph based on two dally staff-gage readings, Feb. 7, 1940 to Apr. 15, 1941: from water-s'-.age recorder graph, beginning Nov. 25, 1941. Cooperation.- Record of staff-gage readings, Feb. 7, 1940 to Apr. 15, 1941, furnished by uorps or Engineers, U. S. Army. Capacity table (elevations, in feet, and contents, in acre-feet) (Prepared by Geological Survey from data furnished by Corps of Engineers, 0. 3. Army) 50 500 3,400 13,900 40,5OO 51 1,000 4,600 18,800 50.0OO 52 1,600 6,000 25,000 60,800 53 3,400 9,600 32,300 79,000 Contents, in acre-feet, 1940-43 1940 1 1941 Day Feb. Mar, Apr. May Dec. Jan. Feb. Kar. Apr. 1 . 13,100 7,360 800 _ 2,320 2,OOO 8,270 6,680 2 _ 6,000 4,360 750 _ 1,920 1,760 9,0?0 5,720 3 _ 3,640 3,200 750 _ 1,680 1,540 6,680 6,510 4 _ 2,700 2,400 750 _ 1,760 1,480 5,OfO 19,100 5 - 2,080 2,000 750 - 2,800 1,420 3,640 13,100 6 _ 1,760 1,760 750 _ 8,650 2,600 2,9C1 7,360 7 2,160 1,540 1,680 700 _ 7,190 2,800 2,401 4,480 8 1,840 1,360 1,600 700 _ 5,440 5,860 2,lfO 3,400 9 1,540 1,240 1,540 650 _ 3,760 9,810 1,340 2,800 10 1,300 1,120 1,42O 600 - 2, BOO 13,500 l,7fO 6,340 11 1,240 1,060 1,300 600 _ 2,240 12,200 1,540 6,000 12 1,060 1,000 1,240 650 - 2,000 8,270 1,4TO 4,240 13 8,700 950 1,120 650 _ 8,080 4,600 1,360 3,000 14 6,510 900 1,060 500 _ 9,030 3,300 1,300 2,320 15 4,360 350 1,000 - - S,270 2,800 1,8*0 1,680 16 3,800 860 950 _ _ 6,160 2,600 1,1FO 17 7,190 850 900 » 700 3,640 8,700 1,1J>0 _ 18 4,880 750 800 3,640 8,700 3»3OO i,wo - 19 3,300 750 750 _ 2,500 6,080 8,800 1,000 - 20 2,400 700 750 - 2.5OO 5,360 ,8,400 960 - 21 8,000 ~ 700 700 7,020 7,190 2,600 9PO _ 22 1,680 700 700 _ 7,060 7,080 3,000 900 - 23 1.640 660 650 ' _ 7,630 9,810 2,840 360 - 24 1,360 600 660 _ 18,800 9,220 3,200 800, 25 1,640 600 700 - 18*000 11,500 8,800 800 - 26 10,600 1,480 900 _ 13,700 9,410 4,120 750 . 27 39,200 3,760 ' 900 _ 11,900 5,580 6,780 750 t - 28 61,400 3,620 960 _ 7,080 3,880 6,860 S50 - 29 30,700 8,460 860 _ 5,160 2,900 - 1,840 - 30 _ IS, 800 800 H 4,120 2,400 - 3,100 - 31 - 17,000 - 5,000 2,080 - 8,460 . Iota.- Record started Feb. 7, 1940. Contents less than 600 acre-feet and therefore not computed. Hay IE to Dec. 16, 1940. Ho record Apr. 16 to HOT. 24, 1941. RUSSIAN RIVER BASIN 371 Contents, Inn acre-feet,ac of Laguna de Santa Rosa near Oraton, Calif., 1940-43--Contlnued 1941-42 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. _ ' 1 _ 700 3,1OO 1,000 950 1,420 800 2 - 950 - 8,650 l,OOO 950 1,360 750 3 » 1,760 - .7,360 1,000 1,OOO 1,360 750 4 - 1,800 - 14,700 950 1,800 1,240 7OO 6 - 1,480 - 21,500 950 2,900 1,180 700 6 _ 1,300 1,480 30,700 950 3,000 1,120 650 7 - 1,18C 2,6OO 16,000 900 2,5OO 1,060 650 8 - 1,060 3.2OO 7,890 850 2,160 1,060 500 9 - 1,000 2,600 4,740 850 2,OOO 1,000 600 10 - 9.00 2,160 3,400 1,120 2,240 950 550 11 _ 850 1,920 2,700 2,700 2,240 1,OOO 650 12 » 800 1,680 2,320 2,320 2,000 95& 500 13 - 950 1,540 2,000 1,920 3,000 950 14 - 3,OOO 1,480 1,840 6,170 4,360 950 _ 15 - 5,860 1,360 1,680 5,580 3,640 950 - 16 _ 7,530 1,300 1,540 3,760 3,400 950 _ - - 1,300 1,480 2,800 4,240 900 _ 17 - - J.O11% 1,240 1,420 2,240 4,360 900 .. 19 - - 1,180 1,420 1,920 3,520 900 _ SO - - 1,120 1,360 1,680 2,^OO 360 - 21 _ _ 1,120 1,360 1,540 2,4OO 850 .. 22 - - 1,760 1,300 1,420 2,160 800 H 23 - - 9,220 1,240 1,300 1,920 8OO _ . 24 - - 12,200 1,240 1,240 1,750 75C _ 25 - - 10,200 1,180 1,180 1,540 900 - 26 _ . 7,7OO 1,120 1,120 1,480 900 .. 27 - - 8,840 1,120 1,060 1,420 900 _ OQ - H &O 6,510 1,060 1,000 1,360 900 OQ - ._ <6*7 600 4,480 1,000 1,300 850 30 700 - 3,520 - 950 1,360 850 _ 31 " " 2,900 950 800 - Hpte.- No record Oct. 1 to HOT* 24 and Dec. 17 to Jan. 5>- maximum contents, 6,880 acre-feet, proDably on Dec. 26. Contents less than 500 acre-feet and therefore not computed, Noar. 25-28 and June IS to Sept. SO. Day Oct. NOT. Dec. Jan. Feb. Mar. Apr. Hay June July Aux. Sept. 1 .. 1,000 1,920 3,760 2,240 1,480 1,760 700 2 H 950 1,760 2,900 1,920 1,360 1,600 700 3 _ 950 1,600 2,400 1,760 1,860 1,480 700 4 _ 900 1,540 2,240 1,920 1,30C 1,42C 700 5 - 900 1,420 2,080 2,000 1,860 1,360 660 6 w 900 1,360 1,920 2,240 a.,360 1,240 650 7 _ 950 1,300 2,240 2,400 1,360 1,180 650 8 _ 960 1,240 2,400 3,000 1,300 1,120 650 9 H 960 1,240 2,240 5,440 1,240 1,060 660 10 - 950 1,180 2,080 5,860 1,240 1,000 550 11 w 950 1,120 1,840 4,600 1,180 950 650 12 _ 950 1,120 1,680 3,520 1,120 950 650 13 _ 950 1,120 1,600 2,800 1,120 000 650 14 H 900 1,480 3,000 1,O6O 850 600 IS - 900 - 1,420 2,800 1,060 850 600 16 850 9OO _ 1,420 2,320 1,000 800 600 17 1,480 900 _ 1,360 2,500 1,000 800 600 18 2,32C 900 H 1,300 2,700 1,000 80O 600 19 2,240 850 _ 1,300 2,320 1,000 750 660 20 1,920 850 - 1,240 2,080 050 750 550 21 1,680 850 _ 1,300 1,840 960 750 560 22 1,480 1,420 H 1,540 1,680 950 700 500 23 1,3OO 6,850 _ 1,840 1,600 900 700 500 24 1,240 7,530 _ 1,920 1,480 900 700 - 25 1,120 6,680 - 1,760 1,420 900 700 - 26 1,060 4,350. _ 3,100 1,360 900 890. _ 27 1,060 3 20O _ 3,300 1,360 1,120 650 - 28 1,060 3^100 _ 2,700 1,300 1,760 650 - 29 3,000 _ 1,480 1,920 650 30 1«OJOO~ 8,500 - _ 1,540 1,920 960 - 31 " 2,160 6,160 - 1,640 < «Sff " * ote.- Contents less than 600 acre-feet and therefore not computed, Oct. 1 to lor. 15 and June 24 o Sept. 30. Ho record Jan. 14-30. 37E RUSSIAN RIVER BASIN Monthly elevation and contents, of Laguna de Santa Rosa nea" Oraton, 1940-48 ' Contents Change In contents Da to Elevation during month (feet) (acre-feet) (acre-feet) 1 n |VVb 60.6 Ann KO ft +4 770 8 Ann Feb. 28...... 60.91 R1 «n 1 -XAO +410 KA AO 60.99 Feb. 28...... S *7nn 61.89 1,640 1 0 on Hay 31...... -1 * 270 time baato la; faclflc atandard tlae prior to 2 a.m., Feb. 9, 1948; Pacific war time thereafter. To convert war tine to standard time, subtract 1 hour. EEL RIVER BASIN 373 Lake Plllsbury at HultLville, Calif. Location.- Staff gage, lat. 39°24', long. 122°57', on line between sees. 14 antf 23, T. 18 N., R. 10 W., at Scott Dam on Eel River, at Hullvllle, 0.3 mile downstream from Rice Fork. Datum of gage Is at mean.sea level. Drainage area.- 288 square miles. Re cordsisaa;. avallable.- October 1922 to September 1943 (gage heights only prior to October Extremes.- Maximum contents observed during year, 94,400 acre-feet May 6, 7 (elevation, 1,910.3 feet); minimum observed, 56,900 acre-feet Nov. 13, 14 (elevation, 1,891.9 feet). 1922-43: Maximum contents, 95,600 acre-feet May 13, 16, 1925 (elevation, 1,910.8 feet); minimum, 10 acre-feet Dec. 9, 10, 1931 (elevation, 1,822.5 feet). Remarks.- Reservoir Is formed by concrete overflow type dam; storage began In December I52T7 Usable capacity, 93,700 acre-feet between elevations 1,822.4 feet (sill of outlet gate) and 1,910.0 feet (top of spillway gates) above mean sea level. Water Is released down Eel River to Van Arsdale Re.servolr, from which It Is diverted through tunnel to Potter Valley powerhouse; part Is then used for Irrigation and remainder flows Into East Fork Russian River. Records, based on gage readings made at odd times, shows contents available for release. Cooperation.- Gage-height record, furnished by pacific Gas & Electric Co., obtained In cdnMction with a Federal Power Commission project. Contents, In acre-feet 1942-45 Day Oct. Nor. Dec. Jan. Feb. Mar. Apr. Hay June July Auf. Sept. l . 59,900 69,700 73,900 74,500 72,900 91,600 92,600 93,700 91,900 83,600 72,700 2 67,900 59,700 » 73,700 74,300 73, 100 91,900 92,800 91,900 83,300 72,000 3 87,700 59,300 _ 73,600 _ 73,300 92, 100 93,300 91,600 82, 500 71,300 4 87,500 . 70,900 73,300 _ 73,500 92,300 93,700 94,000 91,400 82,000 5 66,800 - 71,100 73,100 73,900 73,700 92,600 - 94,000 91,400 ei,eoo 71,200 6 66,800 58,600 71, 400 72.900 73, 700 74,100 92,100 94,400 94,000 91,200 81,600 70,900 7 _ 56,300 72,000 72,900 74,300 75, 100 92, 100 94.400 94,000 90,900 70,500 8 _ 58,100 72,200 72,700 74,300 76,700 92,300 94,200 93, 700 90,700 80,700 70,300 9 66,000 57,900 n 72, 700 73,900 60,300 92,800 93,700 _ 90;500 80,600 69,900 10 65,600 57,700 72,900 72,700 73,700 83,100 93,000 93,700 93,500 - 80,300 69,700 11 65,600 _ 72, 700 72, 400 73, 700 _ 92,800 93,700 93,500 89,600 79,900 _ 12 65,200 _ 72,400 72, 400 73,500 79,500 92. 600 _ 93,500 89,600 79,600 _ 13 65,000 56,900 72, 400 _ 73,500 79,500 92,600 93, 500 93, 300 89,100 79,000 68,500 14 .. 56,900 72,400 72,400 73,500 61,600 92,600 93,500 93,300 68,900 » 68,300 15 - 57,000 72, 400 72,400 73, 600 63,600 92, 600 93, 700 93,300 88,700 78,600 67,900 16 64, 100 57,200 72,200 72,200 73, 500 83,800 92,600 93,,700? 68,200 76,800 67,700 17 63,900 61,700 72,200 72,200 73,300 84, 400 92,600 93,700 93, 300 » 77,800 67,300 18 63,700 65, 400 72,200 72,200 73,300 85,300 92,300 93,700 93,300 87,500 77»400 - 19 63, 400 67, 100 72,200 72,200 73,300 66, 000 92,600 « 93, 000 87,500 77,800 » 20 63,200 67,700 72, 200 74,700 73,300 86,900 92,600 - 93,000 87.800 76,900 66,200 21 _ 67,500 72,200 86.400 73,300 67, 800 _ 93, 700 93,000 86,900 ^ 66,000 22 _ 67,500 72,400 . 73,300 88,900 _ 93,700 93,000 66, 40Q 75,900 65,600 23 62, 400 67,300 75,600 80,100 73,300 89J300 93, 700 93,700 92,800 86,200 75,700 65,200 24 62,200 67,300 76, 100 76,300 93,700 93,700 92,600 76,300 65,000 25 62,100 - 75,800 75,500 73,100 90,900 93,700 93,700 92,600 85,800 74,900 - 26 61,900 _ 74,100 75> 300 73,100 91,600 93,700 _ _ 65,500 74,500 ^ 27 61,500 68,500 73,900 75,100 73,100 92,800 94,200 93,700 92,300 85,100 74,100 63,900 28 69,300 76, 100 74,900 73, 100 92,100 93,700 93,500 92,300 64,600 _ 63,500 29 - 69,700 74,900 75,700 » 92, 300 91,900 93,500 92,100 S4,200 73,500 63.200 30 60,400 69,700 74,300 76,100 91,400 92,100 93,500 92, 100 64,000 75,300 62,300 31 60,800 74,100 75,100 - 91*400 - 93,500 - 83,800 72,900 a Ho gage-height record; contents interpolated. Monthly elevation and contents, water year October 1942 to September 1943 Change in contents Date Elevation Contents during month (feet) (acre-feet) (acre-feet) HOT. 30...... Dee. 31...... - 74,100 +4, 400 Calendar year 1942...... - - +400 Feb. 26...... _ 73, 100 -2,000 - 91,400 +18,300 . 62,600 -10,100 Water year 1942-43...... - - -5,600 lie; Pacific war tine. To convert war time to standard time, 374 EEL RIVER BASIN Eel River at Hullvllle, Calif. Location.- Water-stage recorder, lat. 39°24», long. 122°58', In NE* sec. 22, T. 18 N., H. 10 W., half a mile downstream from Scott Dam, half a mile upstream from Soda Creek, and half a mile west of Hullvllle. Altitude of gage, about 1,800 ferct (from topo graphic map). Drainage area.- 289 square miles. Kecoras available.- November 1922 to September 1943. Average aiscnarge.- 20 years (1923-43), 488 second-feet. as.- Maximum discharge during year, 29,600 second-feet Jan. 21 (gftge height, 19.4 E7~from floodmarks), from rating curve extended above 1,200 second-feet on basis of computed flow over Scott Dam; minimum, 16 second-feet Nov. 16. 1922-43: Maximum discharge, 38,000 second-feet Dec. 11, 1937 (gare height, 22.9 feet, from floodmarks), from rating curve extended above 3,000 second-feet on basis of computed flow over Scott Dam; practically no flow at times. Remarks.- Records good. Flow regulated by Lake Plllsbury (see preceding page). No diversion above station. Cooperation.- Water-stage recorder graph, furnished by Pacific Gas & Electric Co., ob- tainea in connection with a Federal Power Commission project. Rating tables, water year 1942-43 (gage height. In feet, and discharge, In second-feet) Oct. 1 to Jan. 21 Jan. 21 to Sent. 30 2.6 32 4.6 324 8.0 2,670 3.0 74 5,0 651 9.0 4,280 3.0 66 6.0 534 10.0 5,050 3.2 100 5.5 920 10.0 5,640 3.4 118 5.5 754 12.0 7.SOO 3.6 166 6.0 1,250 12.0 9,140 3.3 190 6.0 1,030 14.0 11,100 4.0 268 7.0 2,090 14.0 13,700 4.2 282 7.0 1,730 16.5 16,200 4.5 434 8.0 3,120 17.0 22,100 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. NOT. Deo. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 182 118 172 1,240 2.160 BOS 434 430 163 97 134 155 2 124 172 172 1,130 1,680 407 438 295 165 97 166 153 3 96 172 172 897 1,360 354 438 188 157 97 168 153 < 104 17S 174 735 1,280 423 434 213 155 97 166 157 5 176 172 174 629 1.310 388 975 285 166 88 170 157 6 178 151 154 654 1,140 276 808 333 163 141 161 157 178 73 154 460 1.540 230 438 491 152 202 138 159 ISO 87 230 410 1,780 238 438 516 160 184 IS 169. 9 167 164 467 370 1,440 396 438 411 150 168 ITS 169 10 100 166 634 342 1,190 3,130 474 276 148 140 176 166 11 112 166 426 316 1,050 3,460 560 270 146 143 176 169 12 172 159 350 270-292 950 2,120 496 264 118 178 176 169 IS 174 126 326 890 899 426 261 118 172 161 169 14 174 97 300 256 864 252 369 213 133 172 133 169 15 174 51 270 246 837 439 369 188 100 172 136 169 16 142 120 299 232 815 786 369 190 99 159 176 159 17 91 45 219 219 821 636 520 178 99 131 174 169 18 99 57 199 199 788 516 286 170 98 134 174 166 19 157 84 180 190 734 329 218 178 68 170 172 166 20 157 168 178 1*620 703 2Se 172 170 85 178 166 166 21 157 186 180 20.800 688 198 163 178 M 17S 161 166 22 157 190 414 12.000 714 186 163 1T4 99' 172 161 166 83 148 i '187 3,710 10,200 708 186 180 178 108 iei 161 167 24 90 197 4,880 5.730 645 186 808 ITfl 109 131 161 161 26 101 167 3,260 8,420 686 186 838 ue 103 1*4 169 1*6 m 165 192 1,710 2,880 673 188 241 1S2 98 170 169 164 27 166 117 1,290 2,900 691 632 717 160 04 - 172 167 166 28 174 124 5,340 2,460 661 666 2,860 160 109 170 1*7 166 SB 174 160 B.6SO 3,030 _ 1,260 1,690 160 10® 188 167 167 30 172 166 i/rio 4,460 - 1,200 593 ISO 102 166 167 167 31 110 - 1,560 2,930 ~ 082 - 168 - 151 166 - Second- Runoff in Month foot-days Maxinun Minimum Mean acre-feet QotrOtk0x* 17 December...... 29,793 4,880 164 9*1 69,090 Calendar year 1942 ...... 271,303 16,200 37 743 638,200 81,367 20,800 120 8,684 161,400 38,378 2, 180 661 1,014 56,290 21,304 3,460 186 687 42,260 April ...... 15,691 2,660 U63 523 51,120 fat* 7,272 516 160 236 14,480 3,619 157 82 121 7,180 July. " 4,644 202 88 160 9*210 4,971 1T6 133 160 9,860 September ...... 4,728 166 163 168 9,380 Rater year 1942-43 ...... 210,614 20,800 a? 677 417,600 Peak discharge.- Jan. 81 (10 .a.) 29,600 SM.-ft.; Jan. S3 (6 a.a.) 16,000 ser.-ft. TJJM baslB! "Pacific war tlae.tl» To eonvert war tine to standard time, subtract 1 boor. EEL RIVER BASIN 375 Eel River at Vau Arsdale Dam, near Potter Valley, Calif. Location.- water-stage recorder, lat. 39°23', long. 123°07', In NBi sec. 30, T. 18 N., R. J.i w., 500 feet downstream from Van Arsdale Dam and 5 miles north of town of potter Valley. Altitude of gage, about 1,400 feet (from topographic map). Drainage area.- 347 square miles. Records available.- October 1927 to September 1943. November 1909 to Septemter 1922 (com- ftinea mantray discharge only, of Eel River at this station and Snow Mountain Water & * Power Co.'s tailrace near Potter Valley) and October 1922 to September 19£7, from records of spill over dam. Average discharge.- 20 years (1922-26, 1927-43), 550 second-feet, combined flow of Eel River oeiow van.__..___.._ Arsdale Dam_.... and._._ Potter. ... _ Valley._. _ powerhouse, . ... tailrace. Extremes.- Maximum discharge during year, 31,600 second-feet Jan. 21 (gage vhelght, 23.6 fee't), from rating curve extended above 9,100 second-feet on basis of computed flow over Van Arsdale Dam; minimum, not determined. 1909-43: Maximum discharge, about 40,000 second-feet Mar. 26, 1928 (gage height, 27.0 feet), from rating curve extended above 1,500 second-feet on basis of computed flow over Van Arsdale Dam; maximum gage height, 30.9 feet on Dec. 11, 1937; minimum discharge, 0.3 second-foot Oct. 16, 17, Dec. 21, 22, 1939. Remarks.- Records good except those for period of backwater, which are fair. Water Is diverted from Van Arsdale Reservoir through tunnel to power plant In Potter Valley, - after which part Is used for Irrigation and remainder flows Into East Fork' Russian River. Records given herein represent flow passing dam down Eel River. Cooperation. Hater-stage recorder graph, furnished by Pacific Gas 4 Electric Co., obtained In connection with a Federal Power commission project. Bating tables, water year 1942-43 (gage height, In feet, and discharge, second-feet) Oct. 1 to Itai. KL Jan. 21 to July 31 3.4 6.3 830 9.0 I,S30 3.4 2.2 6.C 440 3.6 5.6 308 10.0 8,650 S.6 6 7.C 846 3.0 14 5.9 398 11.0 5,650 3.8 14 S.O 1,|30 4.0 SB 6.2 496 12.0 4,8OO 4.0 28 9.C 1,550 4.3 47 6.6 640 14.0 7,700 4.3 58 10.C 2,750 4.4 70 7.0 798 16.0 II,3OO 4.6 97 12. C 5,000 4.6 97 7.5 1,015 1S.O 15,600 4.9 146 14.0 3,050 4.6 128 6.0 1,250 21.0 33.200 5.2 206 16. C 12,100 5.0 164 8.5 1,510 5.5 280 18. C 16,800 Discharge, In aecond-feet, water year October 1942 to September 1943 .Day Oct. Nov. Dec. Jan* Feb. Mar. Apr. May June July Aug. Sept. 1 5.5 6 2.0 1,280 2,420 580 358 377 *w ' 8 Z 5.5 6 61 1,120 1,880 28S 326 275 19 6 3 3.8 4.5 38 S74 1,510 206 320 114 14 e 4 3.5 4.5 26 710 1,530 270 314 117 8 7 5 3.5 4.5 6 584 1,320 a290 in 168 4.5 9.5 6 3.5 4.5 105 476 1,190 a!90 627 225 4,2 12 7 3.5 4.5 74 379 1,620 a!60 338 291 5 10 8 3.5 5 109 308 1,870 a200 335 408 5.5 10 9 3.5 ' 4.5 523 249 1,530 a500 320 320 6 12 10 5.5 4.0 510 Ell 1,260 a2,360 332 151 6 9 11 3.5 4.0 351 176 1,100 a3,280 433 137 6 8 12 4.0 4.0 240 146 995 a2,080 377 126 6.5 9 13 4.5 3.2 193 123 912 1,070 300 125 6.5 08 14 5.5 3.2 159 103 866 8300 228 97 10 a8 3.1 49 8 aS 15 5 117 90 826 a300 C4 ' C 16 4.S 3.2 82 75 795 a660 21S 45 6.5 a7 4.0 246 67 58 7S6 a650 31 7.5 87 3.5 350 29 36 742 a560 162 15 8 a7 10 3.6 S 9 20 682 a350 102 12 8.5 a7 20 5 2.6 6.5 1,940 632 172 47 all 9 a6 21 4.0 8.5 9.5 22,500 608 135 28 alO 9.5 a6 22 3.2 3.2 324 16,300 624 115 14 a9 11 a6 23 5.4 3.0 3V990 13.800 620 100 a8 9 86 4.0 3.8 B,600 6,590 556 90 57 a7 8 6 25 3.8 6.5 3,770 3,920 491 98 a6 8 5 26 3.8 4.5 0.890 3,270 458 87 93 a5 7 6.5 27 3.5 120 1,290 3,170 487 301 1.210 a4 6.5 6 28 3.5 5.5 3,450 2,760 433 465 2,430 a3 8 5.5 29 3.4 2.0 £640 4,020 - 935 1,320 a5 7.5 5.5 30 3.6 i.e 1,860 5,120 - 1,260 600 a6 7 5 31 5 - 1,650 3,530 - 657 - a!2 - 5.5 Second- Runoff in Month foot-days Maximum Minimum Mean acre-feet 124.0 5.5 3.2 4.C1 246 S36.1 360 1,8 27.9 1,660 Deoenber...... 29,361.0 5,600 2.0 . 948 58,280 Calendar year 1942 ...... 245,273.6 13,600 1.8 672 '486,500 JftOT» * 93,740 22,500 20 3,024 165,900 ebruary 26,543 2,420 433 1,019 56, 610 MftTXyh...... 18,709 3,280 87 604 37,110 13,028 2,430 14 434 25,840 Hay...... 3,171 408 3 102 6,290 254.2 22 4.2 6.47 504 227.5 12 3.5 7.J4 451 124 _ 4 246 September...... 120 - - 4 258 Water year 1942-43 ...... 186,257.6 22', 500 - 516 x 373,400 Peak discharge.- Jan. 21 (1 p.m.) 31,600 sec.-ft.; Jan. 23 (7 p.m.) 16,200 aec.-ft. a Ho gage-height record; discharge computed »n baala of flow over Van Arsdale Dam or Interpolated. c Backwater from roadflll across stream channel. Time basis; Pacific war tiae1. To convert war time to standard tine, subtract 1 hour. 376 EEL RIVER BASIN Eel River at Scotia, Calif. Location.- Water-stage recorder, lat. 40°29', long. 124°06', In sec. 7, T. 1 N R 1 E StaSS g?wU- s vHJ:Shwa^ 101 » half a mile north of Scotia and 6 miles upstream from' 1929 gage Is 36 ' 15 feet (r^186*1 ) above mean sea level, datum of Drainage area.- 3,070 square miles. Records available.- December 1910 to February 1915, October 1916 to September 1943 * Average dlscnarge^- 30 years (1911-14, 1916-43), 6,366 second-feet. " icoUj/ 1 iniiiiniuinj xuu OBWJQQ iBGt UCTi, x^ t>. 6« y« 10* jan- 2i (gage cc n 9i°~if' J916-43 : Maximum discharge, 345,000 second-feet Dec. 11, 1937 (gage height ^L, 6^' uased on 194° ratlne; niaxlmum stage observed, 55.5 feet Feb. 2, 1915; ' minimum discharge observed, 10 second-feet Aug. 12-14, 1924 Remarks.- Records excellent between 200 and 60,000 second-feet,' good below and above by Lake°Plll°bui|?a-tl0n f° r POW6r and lrrlgatlon near Potter Valley. Flow regulated Rating tables, water year 1942-43 (gage height, in feet, and discharge, ' in second-feet) Oct.- 1 to Jan. 21 Jan. 22 to Sept. 30 9.1 105 11.5 3,160 27.0 72,000 8.7 94 9.2 175 12.5 5,300 31.0 10.1 8fO 14 8,460 9.4 101,000 8.9 138 10.5 1,2PO 15 355 14.0 9,040 34.0 127,000 9.1 11,500 9.7 595 16.0 15,100 200 11.0 1,9C^ 16 15,000 10.0 38.0 166,000 9.3 286 11.5 2,710 17 880 IS.O 23,000 42.0 209,000 9.5 18,800 10.5 1,490 20.0 ,32,500 400 12.0 3,6fO 11.0 2,250 9.S-- 600 18.0 5,880 23.0 49,000 Note.- Same as preceding table feet. Discharge, in second-feet, water year October 1942 to September 1943 w« 0*t. Nov. aw. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 100 175 6,600 27,400 25J700 4,680 11 ,000 8,800 4,680 680 254 133 2 '126 161 7,000 25,900 19,800 4,390 9 ,530 7,350 7,900 656 249 138 3 112 207 9,760 20,000 16,100 4,170 8 ,400 6,380 5,350 624 240 133 4 105 255 6,S80 15,800 16,300 4,060 7 ,670 5,570 3,830 600 236 136 5 100 287 5,250 13,000 18,000 4,020 11 ,000 4,960 3,050 572 232 146 6 100 287 5,800 10,800 15,000 4,4SO 14 ,900 4,540 2,660 551 228 138 7 119 271 12,200 9,120 16,300 5,330 11 ,400 4,240 2,320 544 224 124 8 105 311 11,000 7,820 22,100 9,220 9 ,650 3,980 2,040 530 220 114 9 100 351 13,100 6,840 19,30Cf 18,100 9 ,020 3,790 1,840 516 216 121 10 100 359 15,900 5 ,£70 16,300 23,400 S,040 3,530 1,660 502 212 U.6 11 105 351 11,100 5,370 14,000 24,900 7 ,250 3,260 1,550 481 208 112. 12 126 335 8,670 4,800 12,500 18,700 6 ,550 2,930 1,480 474 208 114 13 154 343 7,450 4,310 11,200 14,100 6 ,050 2,760 1,420 460 208 133 14 161 399 7,300 '3,880 10,200 12,200 5 ,540 2,590 1,320 436 197 128 15 147 1,330 6,2lO 3,600 9,470 11,800 5,260 8,470 1-.240 388 173 114 16 147 4,770 5,230 3,380 S-,880 9,320 5 ,010 3,360 1,180 870 160 110 17 168 20,8OO 4,620 3,140 8,380 8,660 4 ,650 S,230 1,120 S70 160 112 18 154 27,000 4,050 2,870 8,040 8,150 4 ,320 2,080 1,050 370 163 112 19 126 20,100 3,600 2,620 7,480 7,430 4 ,280 1,940 1,000 370 160 121 20 168 9,950 3,420 13,600 6,940 6,460 4 ,020 1,820 940 358 165 126 21 175 5,660 3,880 187,000 6,600 5,760 4 ,960 1,720 913 346 149 116 22 175 3,700 4,490 208,000 6,680 5,350 5 ,540 1,670 886 340 149 112 23 168 2,780 33,700 127,000 7,170 5,120 4 ,900 1,600 868 324 3.46 124 24 161 3,180 67,500 72,500 6,650 4,650 4 ,630 1,540 841 313 155 121 25 161 4,550 65,800 43,900 6,100 4,350 4,280 1,490 823 897 152 112 26 140 4,180 35,300 35,700 5,590 5,540 3 ,960 1,430 796 S81 146 106 27 140 12,400 27,300 38,200 5,230 8,070 4 ,370 1,320 814 277 146 116 28 161 17,800 51 , 300 39,100 5,050 6,810 11 ,200 1,260 787 272 144 128 29 175 9,760 41,600 39,600 9,620 15 ,200 1,200 760 272 138 124 30 175 7,560 29,400 54,000 20,100 11 ,500 1,180 720 268 144 114 31 168 32,900 36,700 14,600 1,660 258 141 Seccnd- Runoff in Month fcct-days Maximum Minimum Mean aore-feet ' Ooto 4,322 175 100 139 8,570 Kove 159,012 27,000 161 £,300 315,400 Decettber...... ". 548,230 67,500 3,420 17,680 1,087,000 Calender year 1942 3,251,808 184,000 100 8,909 6,450,000 Janu fltry 1,071,920 208,000 2,620 34,680 2,126,000 Febr"uary 331,060 26,700 5,060 11,880 656,300 Marc 293,560 24,900 4,020 9,470 582,300 Apri 224,080 15,200 3,960 7,469 444,500 May. 93,630 8,800 1,180 3,080 186,700 June 55,838 7,900 720 . 1,861 110,600 July 13,100 380 258 483 26,980 Augv 5,713 254 138 184 11,330 September ...... 3,654 146 106 122 7,250 1)8 ter year 1942-43 ...... 2,804,119 208,000 100 7,683 5,561,000 eak discharge. - Dee. 24 (4iSO p.m.) 74,100 see. -ft.; Dec. 28 (4 p.m.) 55,900 sec. -ft. Jan. 21 f p.m.) 3l6, 000 BC)C.-ft.; Jan. 30 (7 a.m.) 58,400 sec. -ft. Time baals; Paei rio war time. To convert war tins to standard time, subtract 1 hour. EEI, RIVER BASIN 377 Potter Valley powerhouse >tallrace near Potter Valley, Calif. Location.- Electrical output meters, lat. 39°21', long. 123°07', In NWi sec. 6, T. 17 N., R. 11 W., at powerhouse of Pacific Gas & Electric Co., 3 miles northwest of town of Potter Valley. Altitude of gage, about 1,000 feet (from topographic map). Records available.- October 1922 to September 1943. ' Average discharge.- 21 years, 191 second-feet. Extremes.- Maximum dally discharge during year, 215 second-feet at times each month ft-om November to June; minimum dally, 60 second-feet Nov. 7. 1922-43: Maximum dally discharge, 321 second-feet Aug. 26, 1933; no flow at times In several years. Remarks.- This water Is diverted from Eel River above Van Arsdale Dam; after passing tnrough power plant, part of It Is used for Irrigation In Potter Valley a"d remainder flows -Into East Fork Russian River. Water for Irrigation diverted from fllrace Is Included In figures of discharge. Cooperation.- Record of dally discharge, computed from powerhouse output, furnished by Pacific uas & Electric Co., obtained In connection with a Federal Power Commission project. Discharge, in second-feet, water year October 1942 to September 1945 Day Oct. Nov. Dec. Jan. Feb. liar. Apr. May June July Aug. Sept. 1 160 91 215 215 197 215 210 215 215 123 119 153 J> 160 160 215, 215 215 215 211 215 215 123 167 158 . South Forte Eel River near Miranda, Calif. Location..- Staff gage, lat. 40°12', long. 123°46«, In NWi sec. 30, T. 3 S., R. 4 E., at syivandale camp grounds on u. S. Highway 101, 0.9 mile south of Rocvy Glen Creek, 6 miles south of Miranda, and 20 miles upstream from mouth. Drainage area.- 547 square miles. t Records available^- May 1940 to September 1943. Extremes .- Maximum discharge observed during year, 69,200 second-feet Jan. 21 (gage neight, 26.95 feet), from rating curve extended above 30,000 second-feet by logarith mic plotting; minimum observed, 21 second-feet Oct. 17. 1940-43: Maximum discharge, that of Jan. 21, 1943; minimum observed, 16 second- feet Sept. 2, 1940. Remarks.- Records fair. Qage read twice dally, with additional readings In periods of nign water. No diversion; low flow regulated at Benbow Dam and powerhouse. Rating tablea, fitter year 1942-43 (gage height. In feet, and discharge, In second- feet) Oct. 1 to Jan. 21 30 2. S 42 4.0 1,000 12.0 14,400 2.2 28 3.6 580 2.4 63 4.5 1,520 14.0 19,700 2.3 40 4.0 940 2.6 234 5.0 2,090 17.0 29,100 2.5 70 4.6 1,460 2.8 200 6.0 3,450 20.0 39,700 2.7 118 5.0 2,040 3.1 325 6.6 4,870 23.0 61,500 2.9 182 9.6 2,700 3.4 490 B.O 6,400 3.1 265 6.0 3,400 10.0' 10,000 3.3 $70 6.6 4,270 Hjoje.- Same a^ preceding table «t>ove 6.6 feet. Discharge, in eecond-feet, water year October 1942 to September 1943 Daj Oct. Nov. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 52 70 1,480 7,830 5,700 931 2,480 1,730 3,050 256 97 48 2 42 68 1,890 7,120 4,420 886 2,090 1,500 2,360 247 90 72 3 40 291 1,740 6,470 3,570 841 1,850 1,370 1,400 238 92 67 4 57 134 1,460 4,420 3,610 814 Iy660 1,230 1,060 229 97 S3 S 96 110 1,300 3,710 3,290 814 3,180 1,130 868 224 92 26 6 40 97 2,210 3,070 2,730 814 2,670 1,040 742 212 88 48 7 39 79 3,290 2,640 3.97Q 1,040 2,180 970 662 212 92 46 8 36 97 2,650 2,310 4,420 - 2,240 2,050 904 590 205 92 33 9 37 140 5,470 2,100 4,090 3,290 1,840 850 o32 197 88 26 10 70 118 3,850 1,910 3,580 6,240 1,640 773 493 816 92 74 11 93 110 2,960 1,780 3,180 5,170 1,490 742 465 179 flfl 67 12 95 83 2,030 1,680 2,730 3,640 1,370 706 444 168 Be 29 13 65 85 8,010 1,540 2,390 2,730 1,250 661 430 102 S8 25 14 61 170 1,720 1,440 2,120 2,560 1,170 625 406 181 51 47 15 66 1,410 1,500 1,390 1,910 2,240 1,090 598 394 142 64 30 16 36 2,970 1,360 1,310 1,740 1,880 1,020 680 388 146 67 47 17 50 8,410 1,220 1,860 1,640 1,700 950 S48 364 145 87 72 18 90 6,240 1,100 1,190 1,490 1,600 904 516 348 145 44 26 19 86 4,420 1,030 Second- Runoff in Month foot-days MaxUuw Kinimua ifoan ; acre-feat December...... 149,510 18,900 1,030 4,033 296,600 Calendar year 1942 ...... 766,010 41,600 31 2,099 1,619,000 llaroh...... 63,920 ART) May...... 44,100 69.0 September...... 1,254 74 22 41.8 2,490 Water year 1942-43 ...... 667,905 50,100 22 1,850 1,325,000' Pacific war time. To convert w»r tiM to standard time, subtract 1 hour. EEL RIVER BASIN 379 Van Duzen River at Brldgevllle, Calif. Location.- Wlrennelghfr gage, lat. 40°28'05", long. 123°47'55", In NWi sec. 13, T. IN., RnnJ., at highway bridge at Brldgevllle, 1 mile downstream from,Little Larrabee Creek. Datum of gage Is 590.66 feet above mean sea level, datum of 1929. X Drainage area.- 200 square miles. Records ayallable.- September 1911 to August 1913, December 1939 to September 1943. Extremes.- Maximum discharge during year, 21,600 second-feet- Jan. 21 (gage height, 25.5 rest, from floodmarks), from rating curve extended above 12,000 second-feet by logarithmic plotting; minimum observed, 8 second-feet Oct. 5-10, Sept. 23-26. 1939-43: Maximum discharge, that of Jan. 21, 1943; minimum, 7.5 second-f^et Aug. 29 to Sept. 2, Sept. 10, 1940, Sept. 23, 34, 1942. Reaarks.- Records fair, wire-weight gage read twice dally, with additional rea-ttngs In periods of high water. No large diversions. Rating tables, water year 1942-43 (gage height, In feet, and discharge, In second-feet) Oct. 1 to Jan. 21 Jan. 22 to Sept. 30 3.0 7 4.0 98 9.0 2,490 2.8 9.5 3.6 114 6.5 1,040 3.1 10 4.2 136 11.0 3,840 2.9 15 4.0 152 7.0 1,300 3.2 15 4.5 204 13.0 5,470 3.0 4.4 240 7.4 1,520 3«3 20 5.0 330 15.0 7,380 3.1 4.8 348 3.4 26 5.5 510 1S.O 10,800 3.2 5.2 474 3.6 43 6.0 740 22.2 16,500 3.4 5.6 630 3.8 66 7.0 1,280 Sote.- Same as preceding table above 7.4 feet. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nojr. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 8.5 13 1,520 3,700 1,630 334 1,240 940 2,590 761 5 2 S.S 15 2,030 3,350 1,510 314 1,040 769 1,380 § 5 B 3 8.5 54 1,130 2,300 1,180 29S 1,000 654 787 74 25 12 8.5 45 810 1,600 4 2,720 B66 895 594 59S 71 24 11'12 5 e 35 655 1,530 2,180 582 2,820 514 518 66 24 6 8 29 1,460 1,180 1,550 658 1,610 454 408 64 24 11 7 1,050 885 2,620 1,130 1,190 408 366 61 24 10 8 72 2,090 750 2,180 2,460 1,220 381 326 57 24 10 9 S 58 2,680 680 1,540 2,880 1,040 342 292 55 24 10 10 45 1,820 606 1,310 3,240 850 314 250 53 23 10 11 13 38 1,300 550 1,140 1,920 733 303 240 51 22 10 12 16 31 984 478 1,090 1,390 646 271 228 49 21 10 13 13 28 1,180 430 1,050 1,120 574 256 214 49 19 10 14 13 62 780 402 990 1,100 526 245 201 47 18 10 18 14 1,490 690 354 659 990 481 245 190 43 18 10 16 13 1,470 650 324 800 800 440 235 176 43 17 10 17 12 4,270 518 306 796 706 390 218 162 41 16 , 10 18 11 4,460 451 281 662 658 ' 363 205 156 39 16 10 19 10 1,400 381 266 614 574 390 194 144 37 16 10 20 10 715 595 4,820 582 510 519 185 134 37 15 9.5 21 9.5 462 572 16,500 550 474 1,440 176 136 35 15 9 22 9.5 388 1,050 9,120 630 460 715 164 134 34 15 9 23 9.5 381 1,550 5,740 542 427 782 154 121 34 15 8 24 9.5 1,250 9,060 3,140 496 396 670 144 114 34 16 8 25 9.5 690 5,010 2,390 450 366 570 132 111 32 16 8 26 9.5 1,130 4,150 2,590 414 1,050 492 125 114 30 16 8.5 27 10 2,940 5,180 3,110 387 850 1,040 121 118 30 15 9.5 28 19 1,610 5,880 3,210 369 630 2,090 118 100 29 14 11 29 21 1,430 3,280 3,630 _ 2,030 1,360 114 91 28 14 11 30 16 1,340 3,800 3,490 _ 1,820 1,160 217 84 27 13 9.5 31 14 - 3,4«0 2,150 - 1,410 - 1,180 26 13 Second- Runoff in Month foot-daya Maximum Minimum Mean aore-^eet 21 8 11.1 684 4,460 13 867 51,560 December...... 65,799 9,060 381 2,123 130,500 Calendar year 1942 ..'...... 320,408.0 10,600 7.5 878 635,500 30,841 61,170 2,820 56,100 May...... July...... 46.2 1 o o September...... 302.0 13 8 10.1 599 Water year 1942-43 ...... 286,447.0 16,500 8 785 568,100 Pacific war time. To convert war time to standard time, subtract 1 hour. 380 KLAMfcTH RIVER BASIN Wllliamson River below Sprague River, near Chlloquln, Ore?.' Location.- Water-stage recorder, lat. 42°34', long. 121°52', In sec. 3, T. 34 S., R. 7 s., a^ quarter of a mile downstream from Sprague River and three-quarters of a mile southwest of Chlloquln. Datum of gage Is 4,155.66 feet above mean s Rating table, water year 1948-43 (gage height, In feet, and discharge. In aecond-feet) 2.3 607 2.9 955 3.6 1,700 4.5 2,850 6.0 5,300 8.6 690 3.2 1,260 4.0 8,170 5.0 3,610 7.0 7,110 Discharge. In second- feet, water year October 1942 to September 1943 Dftj Oct. Nov. Dec. Jan. Feb. Mar. Apr. Hay June July .Aug. Sept. 1 S34 596 1,120 1,420 779 1,490 7 ,620 3,990 1,890 1,060 634 608 528 602 1,210 1,400 815 1,410 7 ,260 4,190 1,940 1,020 t»87 608 SIS 596 1,860 1,350 788 1,390 6 ,670 4,360 1,950 976 J27 608 516 590 1,380 1,380 770 1,41O (6 ,330 4,600 1,980 IMW 523 590 1,560 1,380 754 1,480 6 ,580 4,680 2,060 936 634 614 6 52S 584 1,340 1,310 754 1,560 6 ,760 4,800 2,220 888 634 608 7 539 602 1,310 al,220 779 1,700 6 ,630 3,860 2,430 860 634 614 8 5S9 608 1,140 al,030 797 1,890 S ,400 3,610 S.-SffO 797'884 696 614 9 534 602 946 a910 797 2,220 6 ,110 3,510 2,560 678 687 10 544 614 797 a 860 833 2,470 S,820 9,360 8,390 779 S96 748 11 544 614 746 a 800 815 3,000 5 ,S90 3,280 e,eeo 770 608 683 12 549 606 738 768 788 3,590 5 ,320 3,100 2^070 738 608 634 738 806 779 3,980 4 ,910 8,980 1,930 738 ( 14 648 714 770 768 3,770 4 ,480 2,900 1,800 714 t 14 634 IS 786 754 3,480 4;iao S,790 1,710 698 608 634 16 555 655 706 806 738 3,270 4 ,030 2,720 1,620 683 608 634 17 662 706 690 738 3,140 4 ,010 2,650 1,640 683 tK)8 a626 IS 69S 641 746 2,960 4 no 2,580 1,450 676 t OR a620 19 676 663 668 770 2,770 4 ,260 2,510 1,410 669 e(OR _ 20 6O2 669 676 669 788 8,580 4 ,330 2,430 1,340 668 60S a615 21 596 668 669 728 906 2,460 4 ,380 £,350 1,300 662 602 22 57S 662 669 788 1,020 8,380 4 380 8,260 1,260 6S5 f108 23 676 824 1,180 ,2,330 4 360 2,170 1,820 6S5 Z4 676 696 860 1,270 2,330 4 260 2,100 1,190 648 «ftft 25 683 696 946 1,330 2,340 4 210 2,000 1,190 648 608 a60S 26 596 714 706 936 1,390 8,530 4,040 1,920 i/170 641 608 a610 27 806 754 898 1,490 2,750 3 910 1,870 1,170 648 fOR a61S 28 936 884 886 1,540 3,020 960 1,830 1,160 648 608 a 600 870 886 3,640 1O< 910 1,800 1,180 641 a 02 a605 30 1,080 975 a840 - 5,050 3 880 1,790 1,100 641 < 02 a608 31 " 1,2SO aeoo - 6,940 - 1,890 634 608 Seccnd- Runoff in Month , foot-days Maxinua ttbUOBB Mean acre-feet October...... 17,492 608 20,370 1,080 40,400 December...... 87,673 1,360 669 899 54,890 350,591 2,460 467 960 696,300 January 23,914 1,420 641 933 57,350 25,612 1,540 738 91S 50,800 March...... 85,350 6,940 1,390 2,753 169,300 Hay...... 90,210 July...... 23,246 634 610 September...... 18,640 746 586 621 36,970 Water year 1942-45 ...... 560,070 7,«20 818 1,634 1,111,000 , a Nc .gage-height raoordj dlacharge computed on baal» of recorded range In «t»g<> fcher recorda. and records for Sprague RiTer near Ohlloquln. Time ba«l«» Pacific war time-. To convert war tlsre to standard time, oubtraoe j. hour. KLAMATH RIVER BASIN 581 Upper Klamath Lake near Klamath Falls, Oreg. Location.- Water-stage recorder, lat. 42°15', long. 121°48', In SWi sec. 19, T. 38 8., R. 9 E., 1 mile upstream from outlet of Upper Klamath Lake and 2 miles northwest of Kla math Falls. Datum of gage Is 4,098.22 feet above mean sea level, datum of 19R9, or 4,100.00 feet above datum of Bureau of Reclamation. Cfage readings have been reduced to elevations above Bureau of Reclamation datum. Records available.- May 1904 to September 1943. Extremes.- Maximum elevation during year, 4,143.86 feet June 1; minimum, 4,137.21 feet Nov. 16; maximum dally, 4,143.23 feet June 3; minimum dally, 4,138.02 feet No". 2, 6, 14. 1904-43: Maximum elevation recorded, 4,144.98 feet about Apr. 20. 1&04, from high- water marks; minimum recorded, 4,135.6 feet Oct. 9, 1926, at Buena Vista Landing; max imum and minimum dally elevations occurred during periods when recorder was not xln operation. Remarks.- Records excellent. Reservoir Is formed by concrete dam at outlet of natural lake";' completed In 1921, replacing a temporary dam built In 1919; storage begrn Apr. 15. 1919. Capacity, 584,000 acre-feet between elevations 4,135.0 and 4,143.3 feet. Dead storage below elevation 4,135 feet not known; lake level ordinarily maintained between elevations 4,137 (contents, 118,600 acre-feet) and 4,143.3 feet. Watar stored may be diverted through "A" canal for Irrigation of land under Klamath project of Bureau of Reclamation, or released to Link River through dam or power plants at Kla math Falls. Area of lake at high stages Is partly controlled by diking. Lake eleva tions, particularly extremes, are very much affected by wind. Contents given herein represent those above elevation 4,135 feet. Cooperation.- Capacity table and water-stage recorder Inspections furnished by The Call- rornia Oregon Power Co. Elevation, In feet, water year October 1942 to September 1943 Da? Oct. NOV. Dec. Jan. Feb. liar. Apr. Hay June July Aug. Sept. 1 38.82 38.20 39.30 41.02 41.97 41.36 41.74 42.85 43.05 42.92 42. ?2 40.99 2 38.67 3S.02 39.65 41.22 41.95 41.36 41.80, 42.90 43.09 42.90 42.12 40.96 3 38.60 38.31 39.59 41.26 41.92 41.31 42.04 42.95 43.23 42.93 42. Ce 40.96 4 38.53 38.11 39.66 41.31 41.94 41.29 41.97 43.01 43.15 42.68 41.97 40.91 5 38.51 38.13 39.64 41.34 41.93 41.26 42.16 42.94 43.08 42.90 41.S* 40.87 6 38.42 38*02 39.70 41.41 41.95 41.22 42.34 42.96 43.02 42.82 41.97 40.81 7 38.43 38.16 39; 70 41.46 42.02 41.21 42.37 42.97 43.03 42.81 41.69 40.78 8 3S.43 3S.35 39.76 41.49 42.02 41.24 42.63 42.88 43.04 42.84 41.95 40.84 9 38.34 38.41 39.89 41.52 42.00 41.40 42.76 42.90 43.11 42.82 41. r? 40.70 10 38.81 38.40 39.99 41.57 41.96 41.36 42.62 43.03 43.14 42.88 , 41. 64 40.66 11 38.50 38.36 40.07 41.59 41.94 41.36 42.58 42.93 43.17 42.86 41.77 40.68 12 38.48 38.33 40.09 41.60 41.92 41.33 42.61 42.97 43.08 42.74 41.78 40.62 J3 38.37 38.27 40.14 41.61 41.90 41.41 42.66 42.98 43.07 42.67 4i.e Monthly elevation and content*, water year October 1942 to September'1943 Change in content* Elevation Content* during Month Date (feet) (aere-feet) (acre-feet) 189 600 Dec. 31...... 4,140.94 577,600 +117,300 Calendar year 1942. .... - - +38,700 4 1 A1 OR 4 142 87 Ibv *%1 4 1 jn QI Sept. 30...... 4,139.96 301,200 -83,100 ' Water year 1942-43..... _ . +80.000 Note.- To compensate for wind effect, elevation given for end of month Is mean of elevation for last 3 days of that month and first 3 day* of following month. Time baglsi Paoific war time. To convert war* time to standard time, subtract 1 hour. 382 KLAMATH RIVER BASIN Link River at Klamath Falls, Oreg. Location.- Water-stage recorder, lat. 42°13', long. 121°48', In sec. 32, T. 38 S., R. 9 £., 200 yards upstream from outlet of Keno Canal and three-eighths of a mile upstream from Main Street Bridge at Klamath Falls. Datum of gage Is 4,083.71 feet above mean sea level, datum of 1929, or 4,085.50 feet above datum of Bureau of Reclamation. Drainage area.- 3,812 square miles (Including crater Lake Basin). Records available.- May 1904 to September 1943. Average discharge.- 39 years, 1,570 second-feet (Including Keno Canal). Extremes.- Maximum combined discharge of Link River and Keno,Canal during year, 5,910 secona-feet May 4; minimum, 27 second-feet Dec. 29, 30, Jan. 4-M3; minimum daily, 37 second-feet Jan. 1. 1904-43: Maximum discharge, 9,400 second-feet May 12, 1904 (gage height at bridge, 7.30 feet); minimum, 16 second-feet Dec. 13, 1937; minimum dally, 17 second-feet Dec. 13, 1937. Remarks.- Records excellent except those below 400 second-feet, which ars good. Regula- Lion since April 1919 by Upper Klamath Lake. Water diverted above stitlon by the main or "A" canal and Keno Canal (see pp. 289, 290). Other small diversions above lake. Records of discharge Include flow of Keno Canal. Cooperation.-Col Water-stage recorder Inspected by employee of The California Oregon Power Discharge, In seoond-feet, of Link River, Including Keno Canal, at Klamath Falls, Oreg. water year October 1942 to September 1943 Day Oct. Nor. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 1,870 1,350 700 37 2,550 4,000 3,160 5,500 1,610 961 1,060 1,660 2 1,850 1,340 740 38 2,560 4,020 3,160 5.560 1,860 972 1,110 1.S50 3 1,850 1,350 713 205 8,560 4,020 3,820 5,61O 8,590 £*57 1,170 1,880 4 1,850 1.1OO 741 54S 2,560 4,02O 3,330 5,660 2.57O 1,020 1,180 1,810 S 1,840 1,350 920 564 2,030 3,990 3,620 5,610 2,560 1,060 1,190 1,810 6 1,830 1,330 845 589 294 3,980 4,100 5,610 2,560 1,050 1,340 1,830 7 1,840 1,140 904 496 1,110 3,970 3,600 5,450 2,560 1,080 1,480 1,920 8 1,770 1,030 913 292 2,750 3,650 3,870 4,640 3,560 1,080 1,590 1,920 9 1,650 1,130 935 471 3,150 3,400 3,870 3,960 2,57O 1,100 1,760 1,910 10 894 1,040 756 393 3,060 3,400 3,840 3,050 2,570 1,010 1,870 1,920 11 1,020 1,000 867 644 3,O60 3,430 3,840 2,370 2,570 1,050 1,870 1,910 12 1,610 1,100 745 640 3,040 3,410 3,840 2,560 3,570 1,050 1,660 1,850 13 1,740 1,070 732 639 3,040 3,730 3,840 2,360 3,570 1,050 1,730 1,S10 14 1,740 968 789 640 3,040 4,070 3,870 1,880 3,460 1,040 1,360 1,940 15 1,770 669 S64 555 3,430 4,080 3,870 1,590 3,430 1,130 1,680 2,020 16 1,740 921 854 566 4,100 4,060 3,370 1,590 2,350 1,P30 1,850 2,080 17 1,740 866 897 291 4,100 4,060 4,350 1,620 1,780 1,830 1.830 8,010 18 1,740 689 94S 719 4,100 4,060 4,860 1,610 1,450 663 1,870 2,010 19 1,680 706 eso 792 4,050 4,060 4,850 1,620 1,470 1,240- 1,940 2,010 20 1,470 832 800 903 4,050 4,060 4,740 1,620 1,470 1,230 1,940 2,000 21 1,520 996 919 1,550 4,060 4,030 4,890 1,630 1,310 1,800 1,930 2,030 22 1,470 860 868 2,130 4,040 4,030 4,760 1,630 946 1,070 1,980 3,060 23 1,350 856 772 8,590 4,040 3,710 4,980 1,630 1,050 1,140 1,920 8,070 24 1,370 737 664 3,590 4,040 3,160 4,880 1,680 1,030 1,880 1,850 3,060 25 1.080 996 313 2,600 4,060 3,170 4,930 1,630 1,000 1,190 1,780 8,060 26 1,500 678 308 8,590 4,030 3,130 4,770 1,610 958 1,140 1,710 8,050 2T 1,480 594 178 8,580 4,010 3,140 4,470 1,610 1,060 1,140 1,660 8,180 28 1,490 557 114 2,870 4,000 3,000 4,880 1,500 1,180 761 1,660 2,140 29 1,380 307 181 2,580 . 3,090 4,900 1,680 1.06& P45 1,780 8,140 30 1,350 619 280 8,660 _ 3,110 5,080 1,590 989 948 1,860 2,120 31 1,350 318 2,580 - 3,150 - 1,590 - 1,040 1,900 " River* Including Keno and River Including Keno Oanal "A" Oanal (runoff "A" Canal* Month Runoffr in Runoff Maximum Minimum Mean In aere-feet) In Hean acre- feet ae-e-feet 1,870 894 1,578 96,660 139 96,790 3 ,574 1,350 ' 307 9*6 66,890 0 56,390 946 948 114 685 43,010f 0 42,010 683 Oalendar year 1942 3,110 31 1,256 909,800 199,300 1.109,000 ]1,531 2,600 37 1 , iv100 £ 73,870 0 73,870 L.192 4,100 3,847 180,300 0 180,300 J1,347 tUrch...... 4,080 3,000 3,686 886,600 0 886,600 * !1,686 April...... 8,020 3,160 850,300 25B 350,600 4t,311 5,880 *946 8,887 173*900 199,100 I1,236 2,590 1,866 110,400 se'oso 146,500 £!,461 July...... 1,840 781 1,070 69,880 85,800 181,100 3L,969 1,940 1,060 1,687 101,900 49,480 151,400 i!,468 8,140 1,810 1,969 117,800 89,880 141,100 £',370 Mater year 1943-43 5,680 37 8,064 1,495,000 190,300 1.668,000 £',327 Pacific war time, To convert war tia» to standard tine, subtract 1 hour. KUMM-H RIVER BASIN 383 Klamath River at Keno, Oreg. Location.- Water-stage recorder, lat. 42°08', long. 121°58', In SEi sec. 35, T. 39 S., R. v E., 2 miles west of Keno and 5 miles upstream from Spencer Creek. Drainage area.- 3,920 square miles, not including Lost River or Lower KLamath Lrke Basins. Records available.- June 1904 to December 1913, January 1930 to September 1943. Average aiscnarge.^- 22 years, 1,567 second-feet. tatremes.- naxla discharge during year, 6,440 sepond-feet May 7 (gage height, 9.85 reet); minimum, 162 second-feet July is (gage height, 2.35 feet); minimum dally, 470 second-feet Dec. 26. 1904-13. 1930-43: Maximum discharge, 6,830 second-feet May 1-6, 1938 (gare height, 10.10 feet); minimum, 35 second-feet Aug. 4, 1934; minimum dally, 60 second-feet May 19, 1934. Remarks.- Records excellent. Diversions above station for Irrigation. Lost River diver- sion canal enters or diverts from KLamath River above station. (See records for Lost River diversion canal near Olene and diversion from Klamath River to Lost River near Olene.) The following diversions. In acre-feet, through Klamath Strait into Lower Klamath Lake in year ending Sept. 30, 1943, were computed by Bureau of Redaction from gate openings at Ady: October, 2,580; November, 942; December, 63; Janrnry, 1,090; February, 6,090; March, 1,150; April, 819; May, 637; June, 1,930; July, 1,650; August, 494: September, 216; water year 1943, 17,660. The following diversions, In' acre-feet, to Klamath River through pumps at Ady (operated for first time in 1943) in year ending Sept. 30, 1943, were computed by Bureau of Reclamation from hours of pump operation: July, 387; August, 119;' September, 1,030; water year 1943, 1,536. Flow regulated by Upper Klamath Lake since 1919 and Lake Ewauna and Klamath I Ivor above Keno since September 1931. Cooperation.- Water-stage recorder inspected by employee of The California Oregon Power uo. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. NOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 1,920 1,160 1,150 820 2,760 5,290 4,240 5,640 1,690 968 910 2,040 2 1,950 1,220 1,070 776 2,790 6,290 4,260 6,920 1,880 899 996 2,050 S 1,980 1,190 970 715 3,030 5,540 4,510 6,080 2,700 952 1,010 2,050 4 1,940 1,270 893 1,150 5,210 6,550 4,540 6,240 5,010 960 1,010 2,030 5 1,940 1,480 1,120 1,290 3,580 5,550 4,580 6,510 3,060 1>000 1,010 2,050 6 1,940 1,480 1,300 1,230 2,190 5,340 5,220 6,560 2.950 971 i,r?o 2,050 7 1,940 1»110 1,110 1,260 1,590 5,290 6,100 6,370 2,810 945 1,3<0 2,120 ft 1,960 1,140 1,140 923 2,660 6,070 4,990 6,120 2,S10 912 1,4^0 2,110 9 1,850 1,560 1,340 762 5,740 4,860 4,990 5,660 2,740 905 1,610 2,120 10 1,110 1»060 1,130 300 5,850 4,S50 5,000 4,850 2,640 S64 1,7*0 2,100 11 945 1,200 771 830 5,630 4,850 4,900 3,770 2,620 786 1,7^0 2,130 12 1,660 1,230 1,090 1,040 3,770 4,850 4,820 5,260 2,620 876 1,7?0 2,140 13 1,870 1,180 950 1,100 3,750 6,040 4,780 2,970 2,470 848 1,6^0 2,140 14 1,900 1,140 826 1,170 5,680 5,310 4,780 2,390 2,260 865 i>r>o 2,240 15 1,940 1,120 1,000 1,120 5,920 5,430 4,740 2,000 2,090 967 1,470 2,550 16 1,940 1,160 1,070 926 4,640 5,420 4,710 1.890 1,950 1,020 1,8^0 2,36% 17 1,920 972 1,140 796 4,710 5,520 4,740 1,700 1,420 1,070 1,710 2,520 18 1,890 Ik 100 1,210 1,100 6,010 5,200 5,000 1,750 1,100 809 1,8-X) 2,310 19 1,640 905 1,180 1,360 6,070 5,100 5,130 1,820 1,220 984 Ik 8-<0 2,500 20 1,660 950 978 1,620 6,110 4,990 6,210 1,800 1,210 1,050 1,8^0 2,280 21 1,660 1,500 947 2,210 6,080 4,900 6,270 1,790 998 1,050 1,8^0 2,280 22 1,680 1.160 992 3,160 5,210 4,760 5,510 1,630 599 888 i.e^o 2,290 23 1,420 964 1,090 5,700 5,430 4,520 5,150 1V 490 580 985 1,8^0 2,290 24 1,260 1,160 944 5,620 5,430 5,960 5,210 1,500 720 1,080 1,8"0 2,290 25 1,020 978 796 5,360 5,450 4,000 6,170 1,440 844 1,120 IfS-'O 2,280 26 1,540 894 470 5,240 5,340 4,020 5,140 U290 790 1,160 1,8<0 2,280 27 1,520 871 560 3,130 5,250 4,060 5,000 1,540 838 1>120 l.SX) 2,520 2ft 1,480 949 766 5,170 5,250 4,080 4,970 1,460 944 812 US^O 2,570 29 1,580 673 700 5,180 4,050 6,170 1,500 968 635 1,8-iO 2,380 30 1,550 994 714 5,130 . 4,170 5,290 1,490 1,010 786 2,0^0 2,380 31 1,260 - 704 2,950 - 4,220 ~ 1,520 - 830 2,0<0 * Seoond- Runoff in Month foot-daye Maximum ]fi,niiun Mean acre-feet 1,1U December...... e 29,9S2 1,540 470 967 59,470 Calendar year 1942 ...... 615,767 3,600 290 1,408 1,019,000 January 114,800 5,430 1,390 4,100 227,700 4,847 298,000 4,240 99.300 6,570 1,290 3,203 197,000 53,611 3,060 580 1,784 106,100 29,045 1,160 635 957 67,610 49,666 2,040 900 1,599 98,510 September...... 66,410 2,380 By 050 2,214 131,700 Water year 1942-48 ...... 880,526 6,570 470 2,412 1,747,000 Tl»e taala; Pacific irar time. To convert irar time to standard tlae, eubraet 1 hour. 384 KLAMATH RIVER BASIN Klamath River below Fall Creek, near Copco, Calif. Location.- Water-stage recorder, lat. 41°58', long. 122°22', In NEi sec. 36, T. 48 N., R. b W., 500 feet downstream from Fill Creek, half a mile downstream from Copco No. 2 plant of The California Oregon Power Co., and 1 mlla south of Copco post office. Altitude of gage, 2,310 feet (from river-profile map). Drainage area.- 4,370 square miles. Records available.- October 1928 to September 1943. October 1923 to Faptember 1928 at site aoove rail Creek. Average discharge.- 20 years, 1,478 second-feet (Including Fall Creek). Extremes.- Maximum discharge recorded during year, 9,260 second-feet (regulated) Apr. 22 Cgage~"helght, 7.25 feet); minimum recorded, 191 second-feet (regulrteo) Aug. 8 (gage height, 1.46 feet); minimum dally, 284 second-feet July 11. 1923-43: Maximum discharge, 9,660 second-feet Apr. 27, May 3, 1938 (gage height, 7.39 feet); minimum, about 10 second-feet above Fall Creek several times In 1925 and 1926; minimum dally, 83 second-feet at present site Aug. 2, 1931. Remarks.- Records good. Diversions and regulation above station. Cooperation.-cS~. Water-stage recorder Inspected by employee of The California Oregon Power Discharge, In second-feet, water year October 1942 tc September 1943 Day Oct. NOT. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 8.800 P69 1,720 1,460 3,020 6.140 4,310 6,960 1,880 1,470 344 8,390 2 2,260 1,760 1,630 1.640 2,970 6.800 4,210 6,120 2,170 1,580 1,660 8,470 ' 3 2,220 1,620 1,670 1.120 3,280 6.170 4,080 6,280 2,940 1,410 1,530 8,450 4 1,170 1,810 1,700 1,770 3.680 6-. 170 4,400 6,320 3,460 778 1,630 8,250 5 2,130 1,810 1,280 1,670 3,840 6,160 4,410 6,660 3,620 790 1,760 1,660 6 2,210 1,840 623 1,680 2,760 6.190 6,160 6,480 3,260 1,330 1,980 1,910 7 2,160 1,660 1,610 1,660 2,440 6. ISO 4,990 6,480 3,060 1,410 1,760 8,360 8 2,190 406 1,730 1,620 2,620 6,260 6,020 6,370 2,880 1,430 576 2,400 9 2,160 1,360 1,620 1,200 3,910 6,180 4,680 6,960 3,060 1,840 1,780 2,460 10 1,410 1,560 1,630 618 4,340 6,800 4,660 5,180 8,950 664 1,900 2,470 11 96S 1,610 1,500 1,640 4,000 4,900 4,780 4,010 2,930 884 1,910 2,400 12 2,010 1,820 1,260 1,470 3,960 6,060 4,810 3,580 2,670 1,580 8,140 SavXOO 13 2,190 1,680 361 1,460 4,000 4,970 4,570 3,040 2,960 1,480 8,880 S w4O 14 2,160 1,480 1,610 1,440 3,740 5.310 4,660 8,610 2,670 1,540 8,060 2*540 15 2,120 394 1,610 1,410 3,940 6,460 4,660 8,460 2,430 1,600 1,070 8,680 16 2, ISO 1,470 1,620 990 4,460 -6.460 4,700 8,490 2,160 1,66O 1,890 8,670 17 2,010 1,460 1,660 464 4,920 6,860 4,660 8,110 1,960 1,940 8,830 8,700 18 696 1,620 1,680 1,470 6,080 6,140 4,920 8,040 1,670 S98 2,200 8,400 19 2,030 1,540 1,360 1,460 5,310 6,080 6,030 8,010 1,470 1,510 2,230 2,060 20 2,080 1,800 690 1,170 6,140 4,960 6,140 2,320 666 1,570 2,190 2,600 21 1,660 1,570 1,660 4,390 6,310 . 4,860 5,240 2,200 1,720 1,840 8,870 2,640 1,660 620 1,660 4.140 5,760 4,880 5,540 1,940 1,330 1,470 749 8,640 23 1,860 1,600 1,610 3,960 6,780 4,670 5,230, 1,890 1,260 1,500 1,980 8,680 24 1,290 1,630 1,580 3,760 5,480 3,880 5,900 1,980- 1,180 1,400 8,480 8,640 25 816 1,670 612 3,800 5,380 4,280 6,060 1,780 1,160 364 8,460 8,690 26 2.860 1,380 920 3.570 5,110 5,950 5,4X0 1,680 1,260 It 960 2,400 8,280 27 1,680 1,640 1,160 3,370 6.140 3,980 6,160 1,630 386 1,400 3,610 8,690 28 1,900 1,110 8,050 9.780 4,680 4.010 5,140 1,800 1,900 1,900 8,860 8,640 29 1,620 658 1,770 5,500 » ' 4,890 8,180 1,800 1,930 1,890 1,860 8,690 SO 1,610 1,640 1,780 5,400 - 4,820 6,590 1,670 1,880 1,180 8,860 8,710 31 1,490 1,560 3,160 " 4,140 " 1.960 1,860 8,480 Seoondr Runoff la Month foot-days Maximam LTTTW^ Miniaua Mean ao re-feet Qotofaor 57,040 8,880 516 1,840 1«, 100 November...... 48,7|1 1,880 894 1,426 84,880 December...... 44,066 8,050 961 1,421 87,980 Calendar year 1948 ...... 618,849 '3,900 891 1,694 1,886,000 January ' 67,688 4,500' 464 2,188 194,800 February...... 120,100 5,780 8,440 4,889 898,800 March...... 160,580 6,460 9,880 4,866 898,600 April...... 146,800 5,540 4,080 4,876 890,800 May.MM...... 108,710 6,580 1,660 8,607 815,600 June ...... 69,498 386 8,114 185,800 July...... t...... 98,869 . 1,600 884 1,264 77,080 August...... 68,848 8,510 844 1,882 115,700 September...... 73,670 8,710 1,880 2,468 146,900 Hater year 1948-49 ...... 971,978 6,660 884 8,661 it*a7,oo» Note.- Ho gage-height record Dec. 19-89, 88, 29, J*B» 26 te Fe%. 7, Fee. f-11, Fe»» 88 to Mtr, 25» dleeoavge ewpated cm fcaalc ef eleotrleal output and «ptll from foraeay *t Oop^ So. 1 paver plant and reoorda for Pall Creek at Copoo. Paalfle war ti*e. To convert war tl*e te etaadard tfc»tr *ubtr*n 1 bour. KLAJftTH RIVER BASIN 385 Klamath River at Somesbar, Calif. Location.- Water-stage recorder, lat. 41°23', long. 123°29', in NEi sec. 4, T. 11 N., R. 6 K.",'"300 feet downstream trim Salmon River and 1 mile west of Somesbar po'Jt office. Altitude o£ gage, about 450 feet (from topographic map). Drainage area.- 8,480 equare miles, rt&cb'jftw available.- October 1927 to September 1943. eT- 15 years (1927-29, 1930-43), 6,684 second-feet. uffi discharge during year, 68,400 second-feet Jan. 21 (gage height, 30.45 minimum, 1,330 second-feet (regulated) Oct. 27. 1927-43: Maximum discharge, 73,700 second-feet Dec. 11, 1937 (gage height, 32.3 feet), from rating curve extended above 49.000 second-feet by velocity-area studies; minimum, 218 second-feet (regulated) Aug. 26, 1931. Flood of Feb. 21, 1927, reached a stage of 50.8 feet. Remarks.- Records good exeept those for periods of no gage-height record, which are fair. Storage, large diversions for irrigation, and considerable regulation by p"wer plants , _ above station. Rating table, water year 1942-43 (gage height, In feet, and discharge. In second-feet) 1.780 7.2 3,460 9.0 7,200 14.0 21,200 2,040 7,6 4,200 10.O 9,660 1S.O 32,400 6.5 2.330 8.0 5,000 11.0 12,800 23.0 46,400 6.S 2,790 8.5 6,060 12.0 15,600 61,000 Discharge, in sacond-feet, water year October 1948 te S«pte«fe»r 1943 Daj Oct. Ncv. Dec. Jan. Feb. liar. Apr. Hay JtWk* July Aug. Sept. 1 3,120 2,300 18,900 50,000 18,200 14,200 16, 600 14,800 14,900 4,360 8,690 3,500 2 3,070 8,000 28,000 41,700 17, 000 14,100 16,400 14,900 18,800 4,320 8,800 3,500 3 3,090 2,730 15,700 31,600 15,600 14,000 16,600 14,800 10,300 4,440 2,270 3,500 4 3,120 2,790 18,400 24,300 18,400 13,900 16, 100 15,080 9,890 4,840 8,900 3,500 5 2,110 2,890 10,600 21,300 21,400 13,800 19,400 14, WO 9,S«0 3,760 8,900 3,300 6 2,740 2,860 9,610 17,800 19,500 13, 800 18,800 14,800 9,680 3,480 3,080 2,900 7 3,020 3,180 8,630 15,600 19,700 14,600 16,300 14,400 8,990 3,640 3,280 3,100 8 8,980 5,380 12,500 14,400 19,900 17,800 17,700 14,000 8,660 3,930 3,180 3,400 9 2,980 3,020 14,300 13,600 17,600 18,300 16,600 13,800 8,490 3,910 2,330 3,500 10 3,020 2,300 13,500 12, 300 17, 4OO 18,500 15, 400 13,400 8,380 3,710 2,390 3,600 11 2,600 2,870 11,900 11,000 16,100 17,700 14,800 12,400 8,120 3,260 3,090 3,500 1?. 1,990 8,770 10,800 11, 100 15, 600 16,300 14,900 11,000 7,780 2,660 3,160 3,600 13 2,710 3,040 11,300 10,500 15,200 16,000 15,500 10,400 7,440 2,930 3,240 3,100 14 3,820 4,620 10,800 10, 100 15,400 15,700 16,500 9,440 7,870 4,000 3,410 3,300 15 3,170 11, 100 10,500 9,970 15,500 16, 800 17,300 8,940 7,010 4,000 3,190 3,600 16 3,120 S, 990 10,500 9,610 15, 700 14,600 16,500 8,570 6,680 4,800 8,330 3,600 17 3,100 8,360 10,400 8,800 16,700 14,100 15, 700 6,280 6,190 4,100 2,770 3,700 ia 2,930 11, 700 9,780 7,810 17,600 13,600 15,400 7,760 6,170 4,000 3,310 3,800 19 2,100 7,730 9,160 8,300 17,900 13,100 16,800 7,660 5,770 2,500 3,290 3,800 20 8,680 5,730 8,960 13,400 17,900 12,800 16,600 7,780 5,380 8,740 3,320 8,600 21 2,850 5,140 8,170 54,400 17,900 18,400 21,800 8,280 4,740 3,290 3,290 3,600 22 2,820 7,320 11,300 60,000 18,600 18,100 18,100 6,410 6,000 3,860 3,410 3,700 ?3 2,710 14,700 16,900 41,200 18,900 11,900 17,700 9,060 6,500 3,860 2,440 3,700 24 2,730 23,300 87,000 30,000 17,700 11,500 16,600 9,600 4,800 3,240 2,480 3,700 25 2,220 12,500 86,600 23,700 16,600 11,100 15,600 9,830 4,800 3,120 3,480 3,700 26 1,820 11,400 19,100 81,100 16,700 17,800 14,700 9,190 4,300 8,420 3,870 3,700 27 2,440 32,300 38,700 80,700 15,000 16,700 15,100 8, 490 4,600 8,460 3,600 3,800 28 8,690 22,100 58,800 88,600 14,600 16,400 16,600 8,860 3,960 2,870 3,800 3-, 400 as 8,850 19,900 87,000 88,900 M 16,800 14,900 7,940 4,800 2,840 30 2,810 81,700 39,900 85,000 _ 18,300 14,600 8,430 4,660 2,810 2,600 3,680 "* 31 8,600 - 60, 800 80,800 ~ 17,100 - 18,400 " Second- Runoff ia Month foot-days Maximum Minima* Mean acre-feet 169,900 December...... 580,810 60,800 8,170 18,74") 1,162,000 Calendar year 1042 ...... * 3,160,980 60,300 1,880 8,661 6,270,000 884,090 60,000 7,810 22,07-) 1,367,000 February 483,700 21,400 14,600 17,880 869,400 torch...... 468,600 18,500 11,100 14,981 917,600 495,600 21,800 14,600 16,681 982,800 wt_r 336,960 15,000 7,680 10,840 «W,40* 216,000 14,900 3,960 7,800 488,409 106,480 4,440 8,480 3,431 811,800 92,410 3,600 2,200 2,981 183,300 September...... -;...... 103,610 3,800 8,800 3,460 806,300 Water yew 1948-48 ...... 3,910,390 60,800 1,820 10,710 7,766,000 Peah disc: .- How. S* (18)30 a.m.) 34,400 sec.-ft.; HOT. 87 (3 a.m.) 38,300 sec.-ft.; Dee. 86 ;sec,-ft.) Bee. 87 (9:30 p.m.) 61,400 see.-ft.) Dec. 31 (7 a.m.) 68,700 sec.-ft.J Jan. 81 (18:30 p*n.) 68,400 sec.-ft Hote.- Bo gage-height record June 88-86, July 14-19, Aug. 89 to Sept. 88; discharge c-mputed OB basis of recorded range la stage and record* for station near Oopco. ~' pasta; Paclfle war tiat. To convert war time to standard tlaw, subtract 1 hour- 586 KL&MATH RIVER BASIN Smaller reservoirs In Klamath River Basin, Oreg. Fourmlle Lake Reservoir.- staff gage, lat. 4e°27', long. 122°14', In NWi sec. 9, T. 36 a., R. 5k., at aam at outlet of Fourmlle Lake, 8 miles west of Recreation. Gage readings are elevations above mean sea level, Irrigation company datun. Records available, June 1923 to September 1930, June 1932 to September 1943. Maximum con tents observed during year, 16,120 acre-feet June 2, 4, 6 (elevation, 6,003.0 feet); minimum observed, 3,336 acre-feet Oct. 27 (elevation, 5,985.95 feet), Maximum con tents observed during periods 1983-30, 1932-43, 16,220 acre-feet May 18, 1938 (elevation, 6,003.1 feet); no usable contents at times. Reservoir Is formed on natural lake by rock-faced earth dam, completed by Rogue River Valley Canal Co. about 1922. Capacity, 18.100 acre-feet betweer elevations 5,980 feet (sill of outlet gate) and 6,005 feet (crest of spillway). Figures given herein represent usable contents. Water Is used for Irrigation of lards near Medford. Gage read once to four times weekly May to September and occasionally at other times. Hyatt Prairie Reservoir.- Staff gage, lat. 42°10', long. 122°28' T In sec. 16, T. 39 S., K. a £., at aam 6r -raient Irrigation District on Keene Creek, 3 miles north of Ashland- KLamath Falls highway and 20 miles east of Ashland. Oage readings are elevations above mean sea level, datum of Talent Irrigation District. Records available, December 1922 to September 1943. Maximum contents observed during year, 16,140 acrerfeet May 20 (elevation, 5,015.95 feet): minimum observed, 5,325 acre-feet Oct. 2, 3, 17, 22, 28, Nov. 24 (elevation, 5,001.1 feet). Maximum contents observed during period 1922-43, 17,410 acre-feet May 29, 1938 (elevation, 5,017.37 feet); no usable ccntents at times. Reservoir Is formed by rock-faced earth dam, completed by Talent Irrigation Dis trict In 1923; storage began In December 1922. Capacity, 16,180 acre-feet between elevations 4,981.7 feet (sill of gate, approximate) and 5,016.0 feet (spillway crest). Dead storage negligible. Water used for Irrigation near Ashland and Talent. Oage read once to three tines weekly. Other reservoirs.- There ar« alx other small reservoirs In Wllllamson Rlveu Basin and eigflt in LOST; River Basin, having a total capacity of 12,300 acre-feet. Eletation and contents, water year October 1942 to September 194? Ptnundle Lake Reservoir Hyatt Pralrlo Reservoir Bl«- Change In Change In Contents eontenta Ele Date vatfon (acre-feet) during month vation (acre-feet) during month (fett)t (aore-feet) (feet)t (aore-feet) 3,440 6,001.3 5,5ie 3,366 -76 6,325 -191 -_ 3,586 f221 6,008.76 6,89f +973 Dec, 31...... 3,784 +198 6,004.7 7,88? +1,8^6 Calendar year 1948 - - +891 - - *1,889 3,986 +141 S,7Tr +1,843 4,137 +212 »,8gJ> +1,046 4,704 +687 I8,osr +8,808 11,880 +7, 146 ' - 18,4Sf +8,400 16,760 +3,910 16,S6C +430 16,690 +130 14,960 -900 6,998.8 18,880 -3,610 18,160 -e,soo 11,800 1-1,080 7,Wf -4,164 Sept. BO...... 10,940 -860 6,767 -8,889 Water year 1942-45 - - +7,600 - - +261 t Hour of reading not known. Hote.- Contents Interpolated for days on which gage was not read. """' "" la> Pacific war tine, fo convert war time to standard tl»e, subtract 1 hour. KLAMATH RIVER BASIN 387 Sprague River near Chlloquln, Oreg. Location.- Water-stage recorder, lat. 42°35', long. 121°51', In NEi sec. 35, T. 34 S., R. 7 s. , li miles east of Chlloquln and 4 miles upstream from Modoc Point Canal Intake. Drainage area.- 1,580 square miles. Records available.- August 1931 to September 1943. July 1920 to September 1921 at site at ncureaoy Ranch, 12 miles upstream; records equivalent except for extremely low stages. Average discharge.- 22 years (1921-43), 460 second-feet. Eictreafls.- Maximum discharge during year, 6,430 second-feet Apr. 1 .{gage height, 7.47 jeer;; minimum, 217 second-feet Aug. 8, 9 (gage height, 1.53 feet). 1920-43: Muclmum discharge, that of Apr. I, 1943; minimum dally, 50 second-feet (estimated), ,May 26, 27, 1926. .- Records good except those for periods Jan. 7-11, 31, which are fair. Diver sions above station for irrigation; regulation by ponding at Irrigation dan«. Cooperation.- Water-stage recorder Inspected by employee of The California Oregon power Co. Rating table, water year 1948-43, except period of. Ice effect (gage height, iii feet, and discharge, in second-feet) 1.5 204 2.9 1,010 5.4 3,480 1.6 248 3.5 1,500 6.1 4,390 2.0 443 4.1 2.050 6.8 5,400 2.4 665 4.7 2,670 7.5 6,480 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Deo. Jan. Feb. Mar. Apr. ay June July A»«. Sept. 1 230 271 730 940 b420 1.010 6,350 2,340 1,130 8*8 304 266 2 230 276 800 975 b4&0 954 &,780 3,060 1,160 650 504 266 3 230 280 849 966 402 940 &,100 3,190 1,170 534 399 266 4 230 276 898 961 402 968 4 ,780 3,490 1,200 512 394 266 5 230 276 933 975 412 1,030 5,000 3,500 1,280 491 294 266 6 230 280 918 968 423 1,110 5,140 3,080 1,460 474 294 262 7 839 299 877 b850 438 1,210 4,980 2,680 1,670 464 394 262 8 236 308 724 b660 464 1,390 4,740 2,460 1,790 433 339 262 9 230 299 566 D&20 b445 1,670 4,500 2,370 1,780 418 339 294 10 235 294 459 b460 474 1,920 4,250 2,280 1,640 407 262 402 11 235 294 428 b420 464 2,470 4,070 2,160 1,490 392 266 328 12 235 294 423 *b400 443 3,0&0 3,830 2,030 1,360 387 271 289 13 236 294 428 *b430 433 3,320 3,600 1,910 1,240 382 380 289 14 236 323 412 b400 428 3,180 3,120 1,830 1,140 362 380 289 15 239 318 408 407 418 2,820 2,880 1,760 1,060 367 276 289 16 239 323 402 b420 407 2,600 2,780 1,720 982 342 276 286 17 244 337 407 b320 407 2,480 2,340 1,660 926 337 J76 285 18 248 367 397 bS70 412 a2,260 8,960 1,590 884 332 !376 876 19 876 see 382 bS80 433 a2,020 3,060 1,530 835 328 !876 271 20 276 aS46 377 D290 459 al,S20 3,170 1, 400 793 328 271 271 21 253 a340 367 bSSO 550 al,690 3,230 1,420 758 323 271 276 22 248 a340 362 b400 629 al,610 3,260 1,350 717 308 266 262 23 263 a346 367 b420 724 al,5&0 3,260 1,280 678 313 ;266 236 24 876 aseo 372 b460 849 1,540 3,180 1,200 647 313 271 262 25 271 *3S5 362 D660 905 1,540 3,080 1,130 635 318 271 26? 26 857 aSSO 367 b660 954 1.660 2,910 1,070 629 323 271 271 27 257 a 440 488 623 1^030 1,310 2,780 1,030 623 328 !371 271 28 262 a660 486 618 1,070 1,960 2,310 1,010 623 323 !276 263 29 266 a630 523 507 2,470 2,760 1,000 617 31S !371 262 30 280 a690 572 486 - 3,960 2,710 1,030 594 - 308 im 271 31 271 - 766 W60 " 5,790 - 1,070 " 308 266 " Seocnd- Runoff in Month foot-days Maximum Minimum Mean acre-feet October...... 7,675 260 230 246 15,220 November...... 10,516 690 271 361 20,860 December...... t ..... 16,816 933 362 642 33,350 Calendar year 1942 ...... 221,284 1,960 149 606 438,900 January...... 17,097 976 270 562 33,910 February » 15,335 1,070 402 546 30,420 March. . 63,722 6,790 940 2,056 126,400 April 1X0 810 6,350 2,710 3,760 223,800 May 59)200 3,600 1,000 1,910 117, 400 June...... 31, 491 1,790 OW*RQA 1,060 July...... 11,875 572 308 383 23*650 August ...... 8,542 304 839 276 16,940 September. . 8,313 402 235 277 16,490 Water year 1942-43 ...... 363,392 6,360 230 996 720,800* * Winter discharge measurement mde on this day. a Ho gage-height record) discharge computed on basis cf recorded range in stage, weather records, and records for williaason RiTer below Sprague River, near Chlloquln. b Stage-discharge relation affected by ice. gj»e ba»i»i Pacific war tiae. To convert war ti«e tc standard time, subtract 1 hour. 388 KLAMATH RIVER BASIN Cascade Canal near Fish Lake, Dreg. Location.- Water-stage recorder, lat. 42°24', long. 122°16', In SEi sec. 30, T. 36 S., R. & E., at divide between Rogue River and Klamath River Basins, 3 miles upstream from Fish lake a»d 10 miles downstream from point of diversion. Records available.- June 1924 to September 1943 (Irrigation seasons only). Extremes.- Maximum discharge during year, 75 second-feet June 1 (gage teight, 2.58 feet); practically no flow during periods October to March, Aug. 7 to Sept. 30. 1924-43: Ifexlmum discharge recorded, that of June 1, 1943; no flow at times. Remarks.- Records fair for period July 8 to Aug. 6, poor for period Mar 25 to July 7. water stored in Fourmlle Lake Reservoir was released to canal durlnf part of Way and during period July 8 to Aug. 6. Canal diverts water from Fourmlle Creek, in Klamath River Basin, and discharges into lava bed li miles above Fish Lake, In Rogue River Basin. Also some runoff from melting snow Intercepted and diverted. Entire flow sinks In lava bed, reappearing In springs at head of Fish Lake. Cooperation.- Water-stage recorder Inspected by employee of Bedford Irrigation District. Discharge, in second-feet, water year October 1942 to September 1943 Day Dot. Nov. Dec. Jan. Feb. Mar. Apr. May June Jt-ly Aug. Sept. 1 _ a!6 0.1 a35 2 .. 17 .1 a34 3 - 17 a.l a34 4 _ 9.3 a.l 34 6 - 3.7 rO 35 6 _ 9.3 aO 37 7 - 12 aO 0 B _ 10 6.0 0 9 - 9.3 28 0 10 - a9.0 33 0 n _ a8.2 33 0 12 a7.5 33 0 13 - a6.7 34 0 14 a6.4 34 0 15 - a6.0 34 0 . a5.7 34 0 17 - a5.4 33 0 aS.O 34 0 19 , - 4.7 53 0 20 - a4.4 34 0 21 _ a4.0 34 0 I 22 - a3.7 34 0 23 - a3.4 34 0 24 - a20 34 0 25 32 alO 34 0 2fi 33 5.2 54 0 27 se 4.1 34 0 34 34 0 29 86 .1 34 0 30 age .1 34 0 31 a!9 *' 36 0 SecoDd- ..,.._ Runoff IB Month foot-days Maximum Minimum "eain aere-feet Doteb«r Hov*__Hftttl- ... D*o«tb*f ...... + ...... Calendar year ...... _ _ February . . _ _ _ _ March ..... ^ _ . _ » Apr! 1...... Hay 157 35 19 32.4 *311 232.1 20 .1 7.74 460 July 777.4 35 0 25.1 1,540 Augu 199 36 0 6.42 395 Septw**r...... 0 0 0 0 0 1,365.5 - - - 3,710 a Ho gage-height record; discharge Interpolated er computed on feasla of recorded range In' stage, Interpolation, extrapolation, and gage readings at head of canal. floe basis: Pacific war tlae. To convert war time to standard tine, subtract 1 hour. KLAMMH RIVER BASIN 389 "A" canal at KLamath Falls, Oreg. Location.- water-stage recorder, lat. 42°14', long. 121°48', in NEi sec. 30, T. 38 S., H. 9 y., 300 feet downstream from head gates of canal and 1 mile northwest o^ KLamath Falls. Records available.- October 1910 to September 1943. Average discharge.- 33 years, 184 second-feet. Extremes.- Maximum daily discharge during year, 1,010 second-feet July 14, 15 (gage height, 10.1 feet); no flow Oct. 2 to Apr. 23. 1910-43: Maximum discharge, 1,100 second-feet July 20, 1937; maximum gag Discharge, in second-feet, water year October 1943 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Auif. Sept. i 65 0 B6 580 653 £10 445 2 0 0 34 490 754 f43 414 7> 0 0 64 419 718 £73 420 4 0 0 76 384 594 £46 405 5 °4 0 77 381 617 F63 399 "S3D 6 0 0 80 379 779 393 7 0 0 80 368 896 F04 389 8 0 0 75 366 926 F74 481 9 0 0 77 482 959 £86 448 10 0 0 103 606 964 C94 441 11 0 0 181 602 928 £26 408 12 0 258 635 933 F08 370 13 0 0 330 599 971 F96 366 14 0 0 352 650 1,010 FS3 354 15 0 0 343 774 1,010 F43 349 16 0 0 342 912 987 F64 350 17 0 0 400 962 960 F93 344 18 0 0 467 955 916 F83 341 19 0 499 885 984 F66 334 20 0 ' 0 655 808 966 871 353 21 0 0 624 734 997 V70 364 22 0 0 669 742 987 686 395 ?X 0 0 683 764= 936 710 407 PA 0 19 707 697 885 683 424 25 0 21 739 6 IS 845 634 438 26 0 17 800 558 890 . 622 471 P7 0 6 860 506 955 614 483 28 13 855 470 991 603 468 29 25 861 49S 997 561 439 TiO , 39 803 543 982 539 414 31 0 675 - 946 482 - Second- Runoff in Month foot-days Maximum Minimum Mean ao re-feet 65 0 2.1 139 0 0 0 0 December ...... 0 0 0 0 0 Calendar year 1942 ...... 100,472 967 0 275 199,300 0 0 0 0 0 0 0 C 0 0 March ...... 0 0 0 0 0 Apri 1...... 130 29 0 4.3 258 May 12,684 861 26 409 35,160 18,190 963 366 606 56,080 July 27,876 1,010 594 899 55,390 Augu St...... 24,947 972 482 805 49,480 September...... 12,039 482 334 401 23,830 Water year 1942-43 .'...... 95,931 . 1,010 0 263 190,300 Time-basis! Pacific war time. To convert war time to standard time, subtract 1 hour. 390 KLAMMH RIVER BASIN Keno Canal at Klamath Falls, Oreg. Location.- Watt-hour1meter, lat. 42°13', long. 121°48', In SWi sec. 32, T. 38 S., R. 9 E., in west-side plant of The California Oregon Power Co., a quarter of a mile upstream from Link River bridge at Klamath Falls, with staff gage In canal 200 feet above penstock. Records available.- October 1923 to September 1943. Average discharge.- 20 years, 205 second-feet. ' Extremes.- Maximum dally discharge during year, 302 second-feet Dec. 2; minimum daily, 2 second-feet Dec. 28-31, Jan. 4-17. 1923-43: Maximum dally discharge, 339 second-feet Feb. 1, 1940; ro flow at times. Remarks.- Records good. Discharge determined by combining flow through power plant, as computed from record- of electrical output, with flow spilled from caril at wasteway above penstock. Canal diverts water from Upper Klamath Lake at Link River storage dam In SEi sec. 30. Water Is used for developing power and returned to Link River in SWi sec. 32. Flow controlled by gates at head of canal. Watt-hour meter read dally at midnight; staff gage read once or twice dally. Coaipe ration.- Oage readings and record of electrical output furnished by The California uregon power Co. Combined discharge, In second-feet, of Keno Canal and spillway at Klamath Falls, Oreg. water year October 1942 to September 19 Day Oct. tiov. Deo. Jan. Feb. Mar. Apr. Hay June July Aug. Sept. 1 290 278 276 4 264 263 280 269 277 281 -877 878 2 268 272 308 4 266 274 876 272 877 282 276 877 3 267 287 293- 3 266 271 877 269 278 281 274 877 4 269 274 232 2 266 267 289 280 877 287 276 877 5 266 276 280 2 263 267 §91 268 874 288 282 278 6 264 276 278 2 261 263 298 269 878 287 283 880 7 266 881 280 2 261 268 296 281 877 283 282 880 B 262 836 280 2 269 266 292 276 877 279 289 881 267 284 279 2 269 280 298 273 260 286 294 870 10 264 884 262 2 267 281 286 277 277 281 294 278 11 277 280 276 2 266 261 286 883 230 282 886 269 18 270 281 275 2 267 270 886 230 880 P79 284 278 13 269 868 277 2 268 278 886 279 276 T78 232 880 14 265 246 267 2 267 B74 289 874 171 281 we 28£ ,16 269 269 268 . 2 263 x 278 287 277 137 278 888 861 16 264 848 268 2 266 277 289 877 880 878 881 278 17 260 266 269 2 266 280 289 290 879 P79 881 874 269 268 269 73 280 18 266 283 281 882 P69 '282282 873 19 262 886 264 98 266 280 269 282 280 876 876 20 123 284 267 196 267 283 276, 277 280 276 282 874 21 47 .286 269 286 269 283 263 ' 282 278 276 279 876 2?. 262 279 266 269 262 277 264 277 278 P76 880 874 25 280 273 266 261 261 880 261 888 880 rao 288 277 286 293 270 260 260 883 266 888 282 PfiQ <, 881 269 25 294 280 280 266 ass 280 ,271 . 284 sea 279 981 272 25 269 274 277 263 263 271 271- ess 888 ?77 877 868 27 274 292 142 266 860 861 267 882 ~287884 m 877 876 28 278 284 2 263 888 269 270 881 277 278 29 275 277 2 266 - 861 869 874 888 fT7 883 875 30 278 280 2 266 _ 264 873 876 283 ?79 861 869 31 277 - 2 26S ", 269 - 377 " m 878 T Seoond- Runoff in Month foot-doys 'Maximum MlniBUB Itean aore-faet 7,998 294 47 OCA 8,262 December...... 7,310 302 8 836 14,600 Calendar year 1942 ...... 86,107 317 0 236 170,800 January , 3,337 286 Z 103 6,680 7,386 269 863 864 14,660 8,481 889 853 874 16,880 3,986 898 261 280 16,630 8,618 290 868 278 17,080 8,139 288 137 871 16,140 8,671 288 869 280 17,800 8,736 294 274 888 17,330' September...... 8,270 282 868 276 16,400 Rater year 1942-43 ...... 95,677 302 Z 256 189,600 Time basis; Pacific war tin*. $o convert war time to standard tine, subtract 1 hour. KLAMATH RIVER BASIN 391 Lost River diversion canal near Olene, Dreg. Location.- Staff gage above and below head gates at Intake of canal at Lost R'ver Dam, iat. 4'2°09', long. 121°40', in SWi sec. 29, T. 39 S., R. 10 E., 4 miles southwest of Olene. Water-stage recorder li miles downstream from intake operating Jarnary 1 to May 11, 1943. Records available.- May 1912 to September 1943. Average discharge.- 27 years (1912-15, 1919-43), 118 second-feet. Extremes.- Maximum daily discharge during year, 1,250 eecond-feet Feb. 23; no flow at 1912-43: Maximum dlsqharge, 1,320 second-feet Apr. 11, 1935; no flow at times. Remarks'.- Records fair. Discharge computed from daily record of openings and head on gates. Canal diverts water from Lost River in SWi sec. 29, T. 39 S., R. 10 E., and discharges into Klamath River to aid in reclamation of bed of Tule Lake. Discharge includes water occasionally wasted from "C" canal flume below intake. At times direction of flow is reversed and water diverted from Klamath River into Lost River. (See record for diversion from Klamath River to Lost River near Olene.) Cooperation.- Records furnished by Bureau of Reclamation. Discharge, In second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. ^Feh. Mar. Apr. May June July A-IB- Sept. 1 126 127 182 463 269 1,020 970 609 0 36 0 178 107 125 20O 455 459 1,070 970 710 84 34 0 190 3 109 124 211 466 550 1,110 980 970 175 33 0 195 107 1S1 214 492 622 1.13O 994 988 314 48 0 167 S 107 121 218 595 676 1,150 998 900 S95 59 0 177 fi 115 121 206 570 696 1,140 986 7S4 374 0 C 182 7 115 204 548 757 1,130 976 ,747 345 0 0 183 8 US 117 460 757 1,090 928 740 850 0 C 189 ft ISO 121 178 273 752 1,200 883 696 117 0 C 193 10 120 121 174 239 730 1,240 S38 613 71 0 C 215 11 121 121 153 228 732 1,230 79S 496 26 0 0 225 12 US 118 113 335 747 1,210 780 496 0 0 0 242 13 117 118 103 410 743 1,200 775 548 0 0 0 862 14 117 116 124 441 745 1,230 760 456 0 0 0 271 15 117 115 130 451 751 1,170 745 330 0 0 0 264 16 116 121 136 449 767 1,12,0 673 291 0 0 0 857 17 114 122 142 451 791 959 509 196 0 0 0 248 18 114 125 147 439 853 S58 490 198 0 0 0 242 19 118 130 146 400 928 797 496 221 0 0 0 240 20 118 135 141 394 956 728 517 216 0 0 11 238 21 128 137 144 413 930 666 470 179 0 0 29 233 22 137 144 140 699 1,060 636 366 83 0 0 36 219 23 138 139 143 774 1,250 634 253 28 0 0 45 807 24 137 22S 149 737 1,230 651 169 0 0 0 119 204 25 140 840 155 564 1,180 730 138 O 0 0 158- 199 26 137 199 176 511 1,070 791 132 0 0 0 199 801 27 137 188 350 491 994 , 836 125 0 20 0 230 206 2R 136 152 386 393 975 868 227 0 49 0 206 812 2ft 134 160 390 408 S32 325 0 35 0 161 217 30 132 168 507 390 _ 944 517 0 37 0 152 215 31 131 - 480 318 - 986 - 0 - 0 138 " Second- Runoff in Month foot-days Maximum Minimum Mean acre-feet 3,798 140 107 123 7,530 Novoi&ber 4,195 240 115 140 8,320 December...... 6,322 507 103 204 12,540 Calendar year 1942 ...... 63,301 1,280 0 173 125,600 228 461 28,370 1,250 269 S20 45,560 1,240 979 60,210 18,780 994 125 626 37,250 May 11, 495 gee 0 371 22 ,'800 2,292 395 0 76.4 4,550 July...... 210 59 0 6.8 417 1,47S 230 0 47.7 2,930 September...... 6,486 271 173 216 12,860 Water year 1942-43 ...... 122, 683 1,850 0 336 843,500 392 KLAMATH RIVER BASIN Diversion from Klamath River to Lost River near Olene, Oreg. Location.- Staff gage above rectangular gate at wasteway, lat. 42°09' long, 121°42', In SWt sec. 30, T. 39 S., R. 10 E., 5 miles southwest of Olene. Records available.- April 1931, when diversion began, to September 1943. Average discharge.- 13 years, 39.2 second-feet. Extremes.- Maximum dally discharge during year, 235 second-feet June 15; no flow at times. 1931-43: raximum dally discharge, 564 second-feet Apr. 13, 1933; no flow at times. Remarks.- Records fair. Discharge computed from record of gate openings and once-daily gage readings at wasteway. Canal was built to divert water from Lost River to Klamath River and thereby aid in reclamation of bed of Tule Lake. (See record for Lost River diversion canal near Olene.) Beginning in April 1931, water has been diverted at times from Klamath River and released into drain which empties Into Lost River, from which It Is rediverted for Irrigation of lands near Tule Lake. Cooperation.- Records furnished by Bureau of Reclamation. Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 0 0 0 0 2 ° 0 0 6 3 * 0 0 0 55 4 0 0 0 57 5 0 0 0 50 6 0 0 28 50 7 0 0 72 50 8 0 0 85 48 9 0 0 54 48 10 0 0 33 59 11 0 0 33 66 12 0 67 32 75 13 0 160 13 53 14 0 1S9 0 16 IS -> 0 235 0 0 16 0 234 0 0 17 0 207 0 0 18 0 163 0 0 19 0 133 0 0 20 0 147 0 0 21 0 157 0 0 22 0 158 0 0 23 0 SOS 0 0 24 0 184 0 0 25 0 66 0 0 26 24 0 0 0 27 45 0 0 0 28 * 43 0 0 0 29 42 0 0 0 30 18 0 0 0 31 0 - 0 0 Seoond- Runoff in Month foot-days Maximum Mininum Mean acre-feet October...... 0 0 0 0 0 November...... 0 0 0 0 0 December ...... 0 0 0 0 0 Calendar year 1942 ...... 7,052 240 0 19.3 13,990 January ...... 0 0 0 0 0 February...... 0 0 0 0 0 March...... 0 o 0 0 0 April ...... 0 0 0 0 0 tt^...... ^...... 172 46 0 e.6 341 June ...... 2, 302 235 0 78.7 4,570 July...... 350 85 0 11.5 DV4RQA August ...... 633 75 0 20.4 1,260 September...... 0 0 0 0 0 -Water year 1942-43 ...... 3,487 235 0 9.6 6,850 Time basis; Pacific war tiae. To convert war tine to standard tine, subtract 1 hour. KLMWTH RIVER BA.SIN 393 Fall Creek at Copco, Calif. .Location.- Staff gage, lat. 41°58', long. 122022', in NEf sec. 36, T. 48 N., R. 5 W., 1,500 feet upstream from mouth and 0.8 mile south of Fall Creek power plan*; and Copco post office. Records available.- July 1628 to September 1943. Average discharge.- 15 years, 33.7 second-feet. Extremes.- Maximum discharge observed during year, 213 second-feet Dec. 27 (gage height, 3.50 feet); minimum observed, 30 second-feet Oct. 4, 6-9, 12. - 1928-43: Maximum discharge, 241 second-feet Feb. 28, 1940 (gage height, 2.64 foet, observed at peak), from rating curve extended above 80 second-feet; minimum observed, 12, second-feet {regulated) May 21, 1941 (gage height, 0.76 foot), from rating curve extended below 28 second-feet; minimum daily, 24 second-feet on many days during June to September 1937. Remarks.- Records good below, and fair above, 100 second-feet. Gage read one-* dally. No diversion above station for irrigation. Occasional diurnal fluctuation ca-ised by power plant and fish ponds half a mile upstream. Cooperation.- Gage readings furnished by The California Oregon Power Co. Rating table, water year 1942-43 (gage height, In feet, and discharge, In second-feet) 1.1 29 1.6 74 2.2 159 1.2 35 1.8 99 2.4 194 1.4 52 2.0 128 2.5 213 Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 31 33 848 79 54 60 55 45 35 34 33 34 2 31 33 48 90 54 60 55 a42 35 33 34 34 3 31 33 41 69 53 a 61 aS5 40 35 34 34 33 4 30 32 39 a64 86 a62 855 40 35 34 33 34 5 31 3S 37 58 74 a62 55 38 a3S 33 33 034 6 30 33 37 50 67 a63 55 38 a34 34 33 a33 7 30 34 37 48 114 a64 a51 37 a34 33 33 33 8 30 34 37 47 79 64 47 38 34 34 33 34 9 30 a34 43 45 64 69 43 38 34 34 34 33 10 a30 33 a45 43 60 a6S a42 as 8 34 34 a34 33 11 830 33 47 842 58 67 41 a38 33 34 33 33 12 30 33 43 41 54 62 43 38 34 34 32 «S5 13 3S 33 43 41 aS6 62 41 38 34 34 34 37 14 32 33 43 41 59 62 a41 35 34 34 34 a36 15 33 41 a40 41 59 862 41 37 35 34 33 34 16 31 35 38 40 62 a62 41 40 35 34 37 34 17 32 34 38 40 a67 62 40 34 35 a34 «S5 34 19'18 33 50 37 37 72 52 39 34 34 33 a33 34 31 37 35 37 72 60 41 35 34 34 31 a 34 20 32 34 35 41 a72 855 40 37 34 34 31 34 21 32 34 38 159 72 50 41 35 35 34 31 34 22 32 35 37 96 96 47 40 35 a34 35 32 34 23 32 36 50 84 81 47 a40 35 34 34 32 34 24 32 50 113 68 81 47 40 35 35 34 34 34 25 31 40 62 64 72 47 40 35 35 834 34 34 26 32 54 50 60 67 48 40 34 35 a34 33 34 27 32 78 213 63 a64 a48 40 a34 34 34 a33 34 28 a33 48 86 79 a62 47 a40 a35 a34 34 a34 34 29 a34 72 62 a74 _ 58 840 35 a34 34 a34 a34 30 34 48 58 69 - 54 40 35 34 33 34 a34 31 31 - 74 58 - 52 - 35 - 34 34 ~ Seoond- _ Runoff in Month foot-daya Maximum Minimum Hean aore-feet Ootober ...... 974 34 30 31.4 1,930 November ...... 1,189 78 32 3f.6 2,360 December ...... 1,654 213 35 5!\4 3,280 Calendar year 1942 ...... 13,074 213 29 35.8 25,930 January.' ...... 1,868 159 37 6C.3 3,710 February...... 1,931 114 S3 6f.O 3,830 March...... 1,784 69 47 ST. 5 3,540 April...... 1,328 55 39 44.3 2,620 May...... 1,143 45 34 36.9 2,270 June...... 1,031 35 33 34.4 £,040 July...... 1,050 35 33 3f.9 2,080 August ...... 1,032 37 31 35.3 2,050 September ...... 1,020 3V 33 34,0 2,020 Water year 1942-43 ...... 15,998 213 30 4J.B 31,730 a No gage-height record; discharge Interpolated. Time basisi Pacific war time. To convert war time to standard time, subtract 1 hour. 394 KLAMATH RIVER BASIN Keene Creek Canal near Ashland, Oreg. Location.- Water-stage recorder, lat. 42°09", long. 122°30', In NWi sec. 29, T. 39 S., H. a &., 400 feet upstream from short tunnel through Cascade Divide, 2 miles north of Ashland-Klamath Falls highway, and 16 miles southeast of Ashland. Records available.- June 1923 to September 1943 (some years Incomplete). Extremes.- Ifexlnum discharge during year, 74 second-feet July 28 (gage height, 2.52 feet); no now at times. 1923-43: Maximum discharge, 91 second-feet Aug. 2, 3, 1938, July 23, 1939; no flow at times. 'Remarks.- Records fair. Water released from Hyatt Prairie Reservoir is diverted by this "canal from Keene Creek In SEi sec. 20, T. 39 S., R. 3 E., and discharged Into Emigrant Creek Basfn for Irrigation of lands near Ashland and Talent. Stored writer released from reservoir Oct. 1, 2, May 20 to Sept. 30. Discharge, in second-feet, water year October 1948 to Septsober 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 30 _ 17 21 71 32 2 26 _ 17 22 72 32 3 2.3 - 17 22 72 30 4 .5 - 17 22 72 27 5 .2 - 17 21 73 16 _ 16 21 72 . 15 6 .2 _ 2-5 7 .2 16 2-5 72 14 8 .2 - 16 72 14 9 .1 _ 16 26 72 14 10 .2 - 16 . 26 71 14 2-3 11 .3 _ 16 71 14 12 .2 5 16 26 72 22 13 .2 8 16 21 69 56 14 .2 4.2 16 26 70 56 15 .2 3.4 L6 27 70 56 16 .2 2.9 16 27 69 56 17 .2 2.6 16 26 69 66 18 .2 1.8 as 27 69 53 19 .2 1.3 22 87 70 42 20 .2 4.9 as 39 69 43 21 _ 10 aa 60 69 42 22 _ 11 aa 69 69 44 23 _ 16 za 49 69 44 24 _ 16 as e Second- M-WJ Runoff la Month foot-days Maximum Miniau* ore-feet October 1-20, , ...... 68.0 SO O.I 3.10 133 November ...... - - Deoenber...... - - - - - Calendar year ...... - t - - - January...... _ _ _ _ ' _ February _ _ _ - March...... _ _ - :. Aprl 1...... May 12-31 ...... 199.1 16 1.3 , 10. C 395 June 663 22 16 13.8 1,120 July...... 1,827 74 22 39.6 2,430 Augu St...... 1,899 73 32 61.3 3,770 September...... 925 56 a 30.8 1,330 Water year ...... ------Tims baslai Pacific war tlms. To convert war tJaae to standard time, subtract 1 boor* KLAMATH RIVER BASIN 395 Scott River near Fort Jones, Calif. Location.- Water-stage recorder, lat. 41°38'35", long. 123°00'35", in NWJ- s?C. 28, T., '&L N., R. 10 W., 150 feet south or road from Fort Jones to Scotts Bar, 1,8 miles , upstream from Snow Creek, and 10.5 miles downstream from Fort Jones. , Datum of gage Is 2,625.80 feet above mean eea level (levels by Corps of Engineers, U. S. Army). Drainage area.- 656 square miles. Records available.- December 1941 to September 1943. Extremes.- Maximum discharge during year, 7,340 second-feet Jan. 22 (gage hsight, 11.65 feet), from rating curve extended above 3,600 second-feet; minimum, 58 second-feet Sept. 26-30. 1941-43: Maximum discharge, that of Jan. £2, 1943; minimum, that of Sept. 26-30, 1943. Floodmarks indicate stages of about 14 feet, dates not known. Remarks.- Records good. Many small diversions for Irrigation in Scott Valley during Elating table, water year 1942-43 (gage height, in feet, and discharge, In second-feet) l.fi 54 3.6 454 6.5 2,210 1.8 84 4.0 586 7.0 2,650 3.1 123 4.5 790 8.0 3,550 2.4 170 5.0 1,060*. 9.0 4,550 2.8 246 5.5 1,410* 10. 0 5,550 S.2 340 6.0 1,81O 1O.7 6,290 Discharge, in second-feet, water year October 1942 to Sept saber 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 61 70 1,720 3,710 1,490 1,080 1,460 1,030 1,920 421 126 74 2 61 71 2,490 3,260 1.41O 1,040 1,390 968 1,600 394 122 73 3 62 72 1,63O 2,490 1,330 1,000 1,480 1,040 1,120 580 119 73 4 62 77 1,630 2,100 1,390 962 1,510 1,130 915 361 116 71 5 68 82 935 1,810 1,580 958 2,030 1,070 81O 348 113 71 6 62 84 860 1,540 1,510 946 1,980 1,040 745 335 110 70 7 62 89 795 1,350 1,730 994 1,750 1,050 718 324 108 69 8 62 94 7S1 1,210 1,750 1,260 1,640 958 700 312 102 68 9 62 129 610 1,100 1,520 1,580 1,470 910 716 295 100 67 10 64 119 763 1,010 1,390 1,620 1,310 925 732 266 1OO 68 11 65 109 692 920 1,300 1,590 1,210 900 718 259 96 69 12 66 102 641 S60 1,220 1,450 1,190 S25 666 244 95 69 13 66 104 656 810 1J170 1,380 1,300 772 615 233 94 67 14 66 115 649 776 1,150 1,340 1,550 732 576 223 92 66 15 66 S47 611 758 1,160 1,220 1,830 696 549 213 S9 65 16 66 358 593 740 1,170 1,120 1,780 666 542 207 66 64 17 66 372 593 692 1,270 1,050 1,650 633 538 196 S5 63 18 69 460 586 630 1,430 970 1,630 597 542 1S5 84 62 19 74 427 572 626 1,440 915 1,730 579 525 ISO S3 61 20 74 322 569 672 1,440 87O 1,630 611 496 177 82 61 21 78 268 569 3,060 1,470 840 2,110 664 489 173 81 61 22 70 300 590 6,220 1,63O 810 1,790 714 486 175 61 61 23 66 635 745 3,460 1,700 781 1,640 905 464 173 S2 60 24 66 1,910 1,550 2,570 1,580 768 1,600 1,140 448 167 61 60 25 66 1,130 1,660 2,O70 1,430 772 1,430 1,200 460 160 81 59 69 918 1,330 1,850 1,320 1,270 1,270 1,120 460 159 80 58 s> 69 3,080 3,O50 1,820 1,210 1,810 v 1,190 1,000 430 154 76 58 26 70 2,210 5,770 1,670 1,140 1,590 1,220 952 418 144 77 58 29 71 1,980 3,510 1,S70 1,910 1,120 900 415 136 76 58 30 71 2,440 2,900 1,690 2,110 1,040 660 421 132 75 58 31 70 4,070 1,650 1,640 1,300 1S9 75 Seoond- y^ Runoff in Month foot-days Maximum Miniaun Mean aero-feet Ooto bar 2,063 74 61 63.5 4,090 Hove ber. .10...... 18,474 3,080 70 616 36,640 Deoe:nb«r...... 44,310 5,770 569 1,421 87,890 Calendar year 1942 269,717 5,770 61 73'} 535,000 Jaau fitry 55,394 6,22O 626 1,767 10a,900 Febr 39,330 1,750 1,140 1.4OI5 78,010 Hare 37,686 2,110 768 1,216 74,750 Apri 45,930 2,110 1,040 1,53~ 91,100 ay. 27,909 1,300 579 900 55,360 Jane 80,258 1,920 415 67 f 40,160 July 7,255 421 129 23'* 14,390 Augu St...... 2,869 126 75 9f?. 5 5,690 Septeater...... 1,942 74 56 64.7 3,850 ffater year 1942-43 ...... 303,420 6,220 58 S3.i 601,800 Peak discharge.- J ov. 27 (7 p.m.) 3,530 sec. -ft.; Dec. 08 (1 p.m.) 6,380 sec. -ft.; Jan. 22 (5SSO a.m.J 7,340 ae c.-ft. Time basis: Pacif Ic war time. To convert war time to standard time, subtract 1 hour. 396 KLAMATH RIVER BASIN Salmon River at Somesbar, Calif. Location.- Water-stage recorder, lat. 41°23I , long. 123°28', In NWi sec. 2. T. 11 N., R. 6 E.,^half a mile east of Somesbar post office and li miles upstream from mouth. Altitude of gage, about 500 feet (from topographic map). Drainage area.- 737 square miles. Records available.- September 1911 to September 1915, October 1927 to September 1943. Average discharge.- 17 years (1911-13, 1927-29, 1930-43), 1,563 second-fee1:. Extremes.- Maximum discharge during year, 22,400 second-feet Dec. 27 (gage height, 13.20 reet); minimum, 155 second-feet Oct. 9, 10. 1927-43: Maximum discharge, 27,000 second-feet Dec. 11, 1937 (gage height, 14.80 feet), from rating curve extended above 7,000 second-feet: minimum, 70 second-feet Aug. 25, Sept. 4, 5, 1931. Remarks.- Records good. No large diversions above station. Rating tables, water year 1942-43 (gage height, In feet, and discharge, In second-feet) Oct. 1 to Dec. 27 Dec. 28 to Sept. 30 2.S 138 3.7 780 7.0 6,800 2.7, 170 3.7 900 6.0 4,680 2.9 180 4.0 1,100 S.O 9,000 2.9 265 4.0 1,250 7.0 6,800 3.0 230 4.5 1,780 9.0 11,400 3.1 390 4.5 1,980 3.2 345 5.0 2,680 10.0 13,900 3.4 630 6.0 2,790 3.4 495 6.0 4,700 11.1 16,800 Hote.- Same as preceding table above 7.0 fe Discharge, in second-feet, water year October 1942 to September 1943 Day Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. 1 172 195 5,880 13,000 4,080 2,440 3,300 2,960 6,600 4,010 390 255 2 167 210 7,320 10,900 3,840 2,380 3,360 2,640 3,860 980 390 245 3 167 345 4,720 6,250 3,520 2,350 3,600 3,050 2,910 960 384 240 4 167 303 3,640 6,710 4,360 2,300 3,620 3,140 2,460 900 377 236 5 163 258 2,840 5,620 4,910 2,300 4,630 2,960 2,280 862 384 235 fi 163 241 2,640 4,330 4,420 2,320 4,160 2,620 2,120 662 377 230 7 169 280 2,460 4,240 4,500 2,620 3,840 2,820 2,110 662 370 225 8 159 902 2,940 3,820 4,280 3,940 3,760 8,670 2,120 814 358 225 9 165 540 3,660 3,460 3,380 3,900 3,370 2,640 2,170 778 344 225 10 172 366 3,72O 3,210 3,560 3,840 3,120 2,790 2,090 738 353 225 11 230 316 3,160 2,980 3,360 3,650 2,940 2,690 2,010 706 ! 332 225 12 220 285 2,360 2,770 3,190 3,360 3,000 2,400 1,840 664 319 325 13 205 285 3,440 2,600 3,180 3,230 3,360 S,320 1,650 630 313 225 14 210 874 3,260 2,540 3,280 3,100 3,940 2,220 1,620 613 307 215 15 230 2,690 3,040 2,510 3,410 2,820 4,220 S,140 1,470 613 295 215 16 215 1,310 3,140 2,400 3,450 2,640 3,840 2,010 1,470 579 295 216 205 2,020 3,100 2,250 3,540 2,510 3,540 1,900 1,540 662 289 216 18 195 3,100 2,860 2,120 3,520 2,360 3,520 1,890 1,640 654 283 210 19 190 1,620 2,540 2,080 3,430 2,220 3,780 1,940 1,400 670 277 210 20 190 1,030 2,460 3,210 3,370 2,140 3,750 2,140 1,260 570 277 210 ?1 185 850 2,330 16,600 3,460 2,040 4,730 2,350 1,2,20 554 277 206 ?,? 180 1,790 2,820 13,400 3,730 1,980 4,200 2,460 1,280 604 283 202 23 176 3,940 4,410 8,560 3,480 1,920 4,140 3,OOO 1,130 579 283 202 P4 176 6,950 8,360 6,300 3,25,0 1,900 3,800 3,280 1,070 529 295 202 25 176 3,180 6,780 6,290 3,000 1,960 3,450 3,270 1,110 497 283 197 172 3,200 5,620 4,780 2,790 4,120 3,160 2,980 1,020 473 271 197 185 9,960 12,800 4,720 2,640 3,920 3,210 2,740 1,000 450 265 206 Oft 210 5,540 16,000 4,970 2,620 3,430 3,410 2,640 1,020 428 265 206 29 206 6,620 10,000 4,970 - 3,840 3,140 2,400 1,070 412 260 aSOO vn 210 6,440 10,900 5,000 - 3,670 3,050 2,670 1,070 406 260 a200 31 205 * 14,500 4,640 - 3,370 - 4,500 - 398 256 - Second- Runoff in Month foot-days Maximum Minimum Mervn acre-foot December...... 164,000 16,000 2,330 5,290 326,300 Calsndar year 1942 ...... 784,654 16,000 165 2,051,, 1,486,000 99,940 4,910 2,520 3,669 198,200 April ...... May...... 82,530 4,««D 1,890 2,662 54,300 1,000 July...... 20,151 1,010 398 650 9,696 Septeaber ...... 6,523 255 197 217 12,940 Water year 1942-43 ...... 874,463 16,600 165 2,396 1,756,000 Peak o;isehar«e.- Hov. 24 (3 a.m.) 9.740 sec. -ft.; Hov. 27 (Z a.m.) 18.1OO see. -ft.: Dec. 8 . 30" a.m.") 9,890 sec.-ft.. . . sec.-ft.; Jan. 21 (2 p.m.) 21,000 sec.-ft. a No gage-height record; discharge interpolated. ., Time baa is: Pacific war time. To «onvort war time to standard tfc», subtract 1 hour. KLAMTH RIVER BASIN 397 Trinity Rlwr at Lewlston, Calif. Location.- Water-stage recorder, lat. 40°42', long. 122°48', In NEi sec. 19, T. 33 N., R. H W., at highway bridge at Lewlston, ©.8 mile downstream trom Deadwood Creek. Datum of gage is 1,794.10 feet above man sea level, datum of 1929. Drainage area.- 724 s SeooBd- Runoff in Month foot-days NaxiBUB Minima Mean acre-feet dcto her...... 8,390 144 174 10,690 Hove 22,048 2,660 186 7*"5 43,730 DeceBber...... 42,370 2,980 770 1,817 84,040 Calendar year 1942 ...... 814,117 18,400 144 2,2^0 1,615,000 Janu ary 61,094 4,710 994 1,971 121,200 Febr 70,870 4,500 1,680 2,6.n 140,600 97,150 6,390 1,820 5,134 192,700 Apr! 118,310 6,940 2,920 5,9'« 884,700 ay. 79,040 5,150 1,780 2,6^0 156,800 June 38,996 3,180 756 1,3X> 77,360 July 15,966 740 261 4V> 27,700 Augu 6,596 241 142 181 11,100 September...... 3,664 140 111 182 7,870 «ater year 1942-43 ...... 568,493 6,940 111 1 6^> 1,108.000 Peak dlaebar&e.- Jcin. 81 (3r30 p.m.) 6,680 sec. -ft.; Mar. 29 (3 p.m.) 7,360 se«.-rt»< Apr. 6 UOS30 a.m.) 6,840 at»c.-ft. gage. Pacific war tine. *o convert war time to standard tine, subtract 1 396 KLAMaTH RIVER BASIN Trinity River near Hoopa, Calif. Location.- Water-stage recorder, lat. 41°02', long. 123°39', in SEi sec. 31, T. 8 N., R. 5~Trr7~on Hoopa Indian Reservation, half a mile downstream from Campbell Creek and 2 miles southeast of Hoopa. Altltudef of gage, about 315 feet (from river-profile map). Drainage area.- 2,840 square miles. Records available.- October 1931 to September 1943. October 1911 to January 1914 and Novemoer isie to August 1918 at site at Hoopa, 2 miles downstream. Average discharge.- 14 years (1911-13, 1931i43), 5,474 second-feet. Extremes.- Maximum discharge during year, 64,100 second-feet Jan. 21 (gagr> height, 22.45 reetj; minimum, 429 second-feet Sept. 26 (gage height, 3.19 feet). 1911-14, 1916-18, 1931-43: Maximum discharge, 124,000 second-feet Feb. 28, 1940 (gage height, 31.2 feet), from rating curve extended above 60,000, second-feet; minimum, 162 second-feet Oct. 4, 1931. Remarks.- Records excellent. Small diversions above station for mlnlmg and irrigation. Rating table, water year 1948-43 (gage height, In feet, and discharge, In seeend-feet) 3.8 438 4.6 1,OOO 7.0 3,010 14.0 21,C50 3.4 498 5.0 1,230 8.0 4,600 15.0 SO.fOO 3.6 564 5.5 1,56O 9.0 6,800 18.O 40,C"0 3.9 680 6.0 1,950 10.0 9,300 80.0 50,?"0 4.8 806 6.5 8,400 18. 0" 14,800 Discharge, in second- fe«t, water year October 1942 to September 1943 Day Oct. Nor. Dec. Jan. Feb. Mar. Apr. Hay June July Aug. , Sept. 1 535 668 8,550 83,900 14,700 8,000 9,900 3,800 9,130 2,14") 910 550 2 538 678 10,900 84,600 13,300 7,620 9,650 8,220 7,950 2,083 895 535 3 588 834 8,950 18,900 12,000 7,420 9,700 7,980 5,900 2,051 871 -528 4 681 S71 6,640 14,900 13,300 7,480 9,300 7,950 4,990 2,010 652 518 5 581 S84 5,840 18,500 16,600 7,650 11,900 7,750 4,490 1,930 843 508 6 , 517 784 4,950 10,800 14,900 7,800 13,800 7,550 4.200 1,910 829 497 7 606 754 4,990 9,650 15,800 3,300 11,400 7,400 4,080 1,92') 884 488 6 503 1,040 5,120 8,550 16,800 12,100 10,900 7,100 3,920 1,891 811 478 9 498 1,090 7,420 7,760 14,300 15,300 10,800 6,680 3,890 1,800 797 472 10 584 990 3,200 7.1SO 12,800 15,800 9,280 6,560 3,900 1,710 766^ 468 11 579 895 7,080 6,680 11,500 15,100 8,680 . 6,560 3,860 1,630 745 468 12 610 624 6,150 6,180 10,700 13,200 8,280 6,080 3,730 1,600 784 468 13 617 802 6,370 5,790 10,300 11,900 8,600 5,680 3.5OO 1,680 708 488 14 636 1,060 6,220 5,490 10,400 11,500 9,380 5,420 3,260 1,440 688 468 15 658 5,890 5,760 5,380 10,800 10,500 10,200 5,240 3,080 1,430 678 478 16 672 4,000 5,42Q 5,'S1O 11,200 9,660 10,200 5,030 310OO 1,401 666 . 478 17 664 4,870 5,800 5,140 11,400 6,880 9,650 4,730 8,950 1,340 640 468 18 648 7,600 4,870 4,810 11,900 8,320 9,200 4,490 2,980 1.S1O 689 465 19 629 5,900 4,460 4,550 11,900 7,750 9,820 4,340 2,900 1,310 610 462 20 617 3,660 4,340 7,480 11,400 7,320 9,150 4,460 8,700 1,310 610 469 21 617 2,690 4,340 40,600 11,800 6,900 11,200 4,680 2,680 l,87f> as 466 22 , 610 2,580 4,660 50,800 11,700 8,680 10,800 4,930 8,600 1,880 615 463 23 602 4,000 9,780 34,900 13,006 ' 6,870 8,960 5,480 2,620 1,810 . SIS 460 24 694 8,180 86,300 86,100 18,100 6,130 9,100 6,139 8,330 1,840 681 438 SS 58? 6,760 84,700 18,700 11,000- 6,060 8,420 6,100 8,260 1.W 626 498 26 ' 687 5,460 16,800 16, COO 9.9OO 7,980 7,7BO 6,960 2,880 l,18»V 61? 489 2T 594 13,400 83,100 16,100 9,060 11,800 7,900 6,380 2,190 i»06f» BOB 438 28 640 10,600 35,700 16,800 8,490 10,000 10,800 5,100 2,160 1,091 691 438 29 656 8,550 85,700 17,500 10,100 10,100 4,760 8,160 1,000 668 444 30 676 10,100 83,000 20,700 12,700 9,800 4,710 8,160 9W» 564 480 ' 31 660 85,200 17,400 10,700 6,040 930 660 Second- Runoff in Month fcot-days MaxiauB Minima Mr«n acre-feet Octc her! ...... 18,326 676 498 591 36,360 Move her...... 113,612 13,400 658 3,787 285,300 Dece her...... 345,130 35,700 4,340 11,130 684,600 Calendar year 1942 ...... ' 2,485,189 62,900 498 6,809 4,929,000 Janu ary 468,880 60,200 4,560 16,130 930,000 Febr uary 342,230 16,800 8,48ft 1^,880 678,800 Haro 296,830 16,300 6,080 9,543 586,800 Apri 891.460 13,800 7,780 9,716 578,100 May. 187,160 8,800 4,940 6,037 871,800 June 107,640 9,180 8,1(50 3,568 813,600 July 46,130 2,140 930 1,488 91,600 Augu at...... i ...... 21,667 910 660 698 48,980 Septeober. '...... :...... 14,181 860 489 471 £8,030 Rater year 1942-43 ...... '...... 8,868,176 60,200 489 6,170 4 ..467. 000 Peak discharge,- IX»o- 24 (ii a .«.) 31,600 .eo.-ft.; £*«. 80 £7(50 a.m.) »,#» *x>.-ft j -.MB* 81 {8 p.m.) 64,100 aec -ft.: Jan, 80 (f a.m.) 88.000 aee.-ft. Mmo basis i f»»UIje war time, to eenwrt *»r tl»e to tMdard tl*», ittbtrw** 1 temp. SMITH RIVER BASIN 399 Smith River near Crescent City, Calif. 3 Location.- Water-stage recorder, lat.' 41°47', long. 124°04', In SHJ- sec. ID, T. 16 W,, R. IE., half a. mile dowistream from South Fork and 9 miles east of Crescent City. Drainage area.- 613 square miles. Records available.- October 1931 to September 1943. Average discharge.- 11 years (1931-37, 1938-43), 3,345 second-feet. Extremes.- Maximum discharge during year, 91,400 second-feet Dec. 31 (gage height, 30.9 feet), from rating curve extended above 24,400 second-feet; minimum, 222 second-feet Oct. 6 (gage height, 3.64 feet). 1931-43: Maximum discharge, that of Dec. 31, 1942; minimum, 168 second-feet Oct. 21, 1931. Remarks.- Records excellent. No diversion or regulation. Hating table*, water year 1948-43 (gaga height. In feet, and discharge. In second-feet) Oct. 1 to Dec. 31 Jan. 1 to Si">t. 30 3.6 212 6.0 1,110 10.0 5,280 18.0 25,200 3.7 868 6.0 1,130 4.0 314 6.S 1,430 11.0 6,900 SO.O HE,600 4.1 377 6.5 1,430 4.S 465 7.0 1,830 \2.0 8,850 22.0 41,000 4.5 499 S.O 650 S.O 2,780 14.0 13,400 84.0 51,000 5.0 682 5.5 865 9.0 3,940 16.0 18,900 26.1 62,300 5.5 890 Hote.- Sane as preoed- Ing table abov<> 6.5 feet. Discharge, In second-feet, water year October 1948 to September 1943 Da? Oct. NOV. Dec. Jan. Feb. Mar. Apr. Hay June July Alg. Sept. 1 239 267 18,000 41,900 8,070 2,010 10,000 3,480 18,700 908 467 345 2 236 450 17,600 29, £00 8,490 1,900 7,680 3,120 10,000 878 470 337 3 234 1,300 10,700 18,100 7,680 1,840 7,170 8,850 5,610 840 461 331 4 289 320 7,560 13,100 15,900 1,760 5,830 2,640 4,150 832 464 386 5 224 586 6,240 11,500 14,000 1,690 6,410 2,430 3,380 800 697 320 B 222 476 3,510 9,380 10,800 1,690 5,790 8,880 2,850 784 569 315 7 224 1,740 18,100 7,600 13,300 2,660 5,000 2,130 2,580 764 493 315 8 224 6,970 26,600 6,400 11,800 4,910 5,490 1,990 8,850 748 467 306 9 824 1,970 24,000 5,550 8,570 4,420 5,400 1,880 8,060 736 468 309 10 306 1,150 16,700 4,930 6,940 3,870 4,790 1,770 1,880 712 449 309 11 440 870 11,200 4,400 6,020 3,290 4,200 ' 1,680 1,720 690 440 309 12 345 702 S,870 3,950 5,640 2,820 3,750 1,610 1,630 667 431 309 13 293 662 10,000 3,640 5,610 2,940 3,410 1,540 1,540 643 419 898 14 280 8,600 7,720 3,380 5,340 4,930 3,180 1,480 1,440 636 410 296 15 293 15,400 6,380 3,130 5,000 3,960 8,930 1,520 1,350 626 404 293 16 £72 10,600 5,580 2,910 4,660 3,480 8,640 1,460 1,890 610 404 896 XT 262 19,100 4,890 8,630 4,360 3,130 2,450 1,370 1,250 591 401 298 18 252 19,200 4,270 8,440 4,060 2,800 2,300 1,300 1,200 573 389 -293296 19 246 10,300 3,760 2,300 3,760 2,550 8,700 1,250 1,170 566 383 20 241 5,990 4,840 21,900 3,500 2,340 5,860 1,280 1,130 568 383 266 21 239 4,890 5, MO 60,600 3,340 2,190 11,900 1,180 1,160 555 398 280 22 236 7,340 12,000 86,800 3,200 8,060 6,830 1,140 1,320 569 485 273 27! 234 81,300 17,400 15,200 2,940 1,940 6,750 1,120 1.8*0 576 401 273 24 231 80,700 24,400 10,400 2,700 1,840 7,130 1,080 1,160 544 392 870 25 234 9,970 20,200 8,090 2,500 1,790 5,460 1,050 1,160 534 383 270 26 241 14,500 13,800 7,770 2,340 7,360 4,500 1,020 1,110 527 371 290 27 891 28,500 33,700 11,600 2,810 5,600 4,280 995 1,040 506 368 317 28 462 14,100 30,000 16,500 2,100 4,380 4,290 966 990 499 354 301 29 336 21,600 IS, 900 14,900 - 7,810 4,310 940 966 480 336 893 30 891 17,400 55,700 15,700 . 9.180 3,880 1,750 944 473 395 288 31 27S - 62,000 10,600 - 11,400 - 10,600 - 467 r 357 - Second- Runoff in Month foe t-days Maximum MiniwiB Mean aore-feet 16,680 267 589,300 DeoeBber...... 509,150 68,000 3,760 16,420 1,010,000 Calendar year 1948 ...... 1,638,694 62,000 882 4,473 3,239,000 Jwwmry . , . 766,600 February 6,199 344,300 March. April...... 313,900 rtQ Ofjf\ QAA. 19 894 Qrta 426 86,330 September. .... i ...... 9,048 345 270 301 17,930 Hater year 1942-43 ...... 1,798,516 68,000 222 4,987 3,567,000 Peak dlacharge.- Dse.. 8 (2 o.m.) 31.100 sec. -ft.: Dec. 27 (4 p.m.) 44,500 ec.-ft.} Dei. 31 "see.-ft.; Jan. 21 (5:30 a.m.) 66,300 sec.-ft. Time baglai Pacific war time. To convert war time to standard time, subtract 1 hour. 400 MISCELLANEOUS DISCHARGE MEASUREMENTS Measurements of stream flow In the Pacific slope basins In California made at points other than gaging stations are given In the following table: Miscellaneous discharge nwaatiFwiteiits in the Pacific slope baa ins in California during water year October 1942 to September 1943 STREAMS SOOTH OP SAH FRANCISCO BAY Cottonwood Creek at Horena Dam spillway, Calif. Discharge | Mte Discharge Discharge Discharge Date (sec. -ft.) y (sec. -ft.) Date (sec. -ft.) Date (sec. -ft.) Dec. 10 0.58 | Jan. 14 1.0 Apr. 1O 122 Apr. 26 1.2.6 Cottonwood Creek 4$ niles below Barrett Dam, Calif. Hay 11 17.6 | Bay 21 9.6 || II 1 Teeats Creek at Cottonwood Creek, near Dulzura, Calif. Bar. 19 26.3 | Apr. 15 20.2 j| II Santa Ysabel Creek near Ramona, Calif. Hov. 25 2.8 1 Aug. 6 1.7 Aug. 26 0.45 Dec. 4 4.2 | I 18 .40 I Sept. 8 .34 San Dleguito River below Hodges Dam, Calif. Mar. 25 98 Apr. 27 49.1 || II M Arroyo Seco at Higger Canyon, near Temecula, Cal3,f Oct. 20 0.08 Feb. 16 1.9 Hay 13 0.91 Aug. 18 0.11 Hov. 17 .08 Mar. 16 9.4 June 14 .43 Sep'i.lS .07 Dec. 15 .16 Apr. 13 7.3 July 15 .19 Santa Ana River at Haxmer Avenue, near Corona, Calif .t Dec. 4 51 jan. S 47.3 Apr. 9 412 | - 18 59 I Feb. 16 125 t Furnished by Orange County Flood Control District. Santa Ana River at Auburndaln Bridge, near Corona, Calif. t Deo. 4 63 jan. S 61 Apr. 9 423 18 76 Feb. 16 145 UI I u t Furnished by Orange County Flood Control District. Santa Ana River near Prado, Calif. Dec. 1 90 May 12 ±73 July 6 ±60 Sop*.. 1 $66 3 ±95 20 £55 15 ±62 6 58 4 t96 26 187 21 186 9 ±57 14 106 June 3 J76 29 $53 IS X52 Apr. 24 £202 4 88 Aug. 3 46.2 23 J66 28 XI 93 17 ±47.3 & 155 28 62 May 1 pai 23 163 12 jjjiEQ 29 ±77 7 124 28 X61 18 171 29 ?79 S ±141 July 6 65 24 ,166 Furnished by Orange Ooilnty Flood Control Di at riot. Furnished by Orange County Water District. - Santa ABB giver Just above Anaheia union Water Co. diversion, near Frado, Calif. Hay 8 124 June 17 50 July 21 49.9 S*p*.. 1 51 8 121 23 94.8 Aug. 12 42.7 9" 56 20 47.3 09 28.9 IS 49.9 16 68 26 85 July 6 39.6 24 4S.2 23 62 June 3 47.7 15 40.S ± Furnished by Orange County Mater District. Santa Ana River at Yorba Bridge, near Yorba, Calif.ft Dec. 29 1.1 Feb. 23 1,510 Apr. 5 155 Apr. 30 119 Jan. 23 2,120 Mar. 1 236 6 320 Hay 1 125 25 2,100 5 2,010 9 430 3 97 27 1,850 S 1.76O 12 310 6 eg 29 1,540 10 1,580 16 268 7 31.3 Feb. 1 570 15 317 19 226 S 44.7 3 242 19 344 23 1S8 10 22.6 v 8 225 22 284 24 178 14 .1 15 125 29 191 26 172 17 0 19 1S4 Apr. S 148 28 146 t't Discharge measurements of April 6, 24,. 28, Hay 1, 6, 8, furnished by Orange County Hater District; all others by Orange County Flood Control District. MISCELLANEOUS DISCHARGE MEASUREMENTS 401 Miscellaneous discharge measurements in the Pacific slope basins in California during water year October 1942 to September 1948 Cont.inued STREAKS SOUfH OP SAH PRAHOISOO BAY Continued Santa Ana River at Jefferson Street Bridge, near Atwood, Calif.t Date Discharge Date Discharge Date Discharge Pate Discharge (sec. -ft.) (see. -ft.) (sec. -ft.) (soc.-ft.) Feb. 1 870 Har. S 1,820 Apr. 2 66 Apr. 26 108 8 158 10 1,570 5 69 Hay . 8 36.1 8 119 15 244 12 286 7 0 15 104 19 252 16 189 19 38.2 22 164 19 150 Har. 1 169 29 96 23 86 t Furnished by Orange Oounty Flood Control District. Santa Ana River at Anaheim-Olive Bridge, near Olive, Oalif.t Jan. 23 1,060 Feb. 15 86 Har. 29 9.7 Apr. 23 6.S 27 1,800 19 2.5 Apr. 2 1.7 26 6.9 29 1,080 Mar. 1 67 5 5.1 Hay 3 1.2 Feb. 1 178 16 68 IS 39.3 7 0 3 61 19 69 16 29.1 8 53 22 33.5 19 18.8 t Furnished by Orange Oounty Flood Control District. Santa Ana River at Chapman Bridge, near Orange, Oalif.t Jan. 25 695 Feb. 19 0.4 Har. 19 3.3 Apr. 23 0.7 27 762 28 866 22 2.4 26 .6 29 708 25 B72 29 1$.5 Hay 3 $$.5 Feb. 1 64 Har. 1 4.0 Apr. 5 4^1.0 7 0 3 20.1 5 1,490 12 3.7 8 11.8 8 1,090 16 5.2 15 1.8 15 9.2 19 1.9 t Furnished by Orange County Flood Control District. Estimated. Lone Pine Creek near Keenbrook, Oalif. Hov. 6 "1.3 Har. 25 11.8 || Aug. 25 4.0 || Dee. 39 1.6 I July 15 4.0 || Sept. 16 2.9 | Day Creek diversion near Etiwanda, Calif. Oct. 1 2.1 Dec. 14 2.8 June 2 4.5 Aug. 16 2.0 14 2.3 Jan. 11 2.8 11 8.8 30 1.6 22 1.8 Hay 13 1.4 July 8 4.2 Sept .14 2.4 Hov. 10 2.5 20 4.3 23 8.0 Dec. 1 1.9 27 5.6 29 2.2 Oarplnteria Greek in canyon, near Oarpinterla, Oalif. July 6 0.28 July 29 0.28 || Aug. 23 0.20 || Qobernador Creek in canyon, near Carpinteria, Calif, July 6 0.63 July 29 0.54 |J Aug. 23 0.07 || Haria Ygnaoio Greek at Old San Hareoa Pass Road, near Gtoleta, Calif. July 28 0.17 Aug. 23 0.23 || II San Jose Greek in canyon above diversion, near Ooleta, Oalif. July 6 0.35 July 28 6.38 || Aug. 23 0.34 || San Jose Creek in canyon below diversion, near Qoleta, Calif. July 6 0.12 July 28 0.04 || Aug. 23 0.13 || Santa Ynez River above mouth of Santa Oruz Greek, near Se-,ta Ynea, Oalif. July 10 tH.5 || July 14 JJl.O || Aug. 13 #0.3 Aug. SI ttO.5 J! Estimated. Santa Ynez River at Solvang, Oalif. Oct. 15 6.9 Dee. 11 9.7 Apr. 14 235 June 5 47.9 Hov. 6 8.5 Jan. 6 10.9 28 158 17 33.1 24 8.4 Feb. 11 243 Hay 12 92 Santa Ynez River at Buellton, Calif. Oct. 15 4.5 Dec. 11 10.0 July 10 9.4 1 Aug. 21 3.4 Hov. 6 7.B Jan. 5 11.4 S2 6.9 Sept. 24 S.O 24 9.0 | June 17 29.6 Aug. 7 3.1 Santa Inez River at Donovan ' a, near Santa Rosa, Oalif. Oct. 16 1.9 Jan. 5 15.1 Hay 13 93 July 22 5.1 Hov. 5 8.8 Feb. 12 256 June 4 48.6 Aug. 6 1.6 25 1C. 8 Apr. 14 254 16 31.1 20 .89 Dee. 11 12.6 161 July 10 9.4 Sept. 23 402 MISCELLANEOUS DISCHARGE MEASUREMENTS Miscellaneous discharge measurements In the Pacific slope basins In California during water year October 1942 to September 1943 Continued STREAMS SOOTH OP SAH PRAHCISCO BAY Continued Santa Ynez River (site E) at ford near Rinconada School, Calif. Discharge Discharge Date Discharge Date Discharge Pate (sec. -ft.) Date (sec. -ft.) (sec. -ft.) (sec. -ft.) Oct. 15 3.8 Dec. 11 13.8 Aug. 6 1.4 Uov. 5 8.9 July 1O 10.8 20 1.5 25 11.4 82 3.7 Sept. 23 .61 Santa Ynez River 1 mile upstream from Qreco Crossing, near Lompoo, Calif July 9 10.4 || Aug. 20 2.3 || II Santa Ynez River (site D) at Qreco crossing, near Lompoc, Calif. Oct. 15 4.2 || July 10 10.9 || Aug. 6 2.3 || July 9 10.8 || 22 5.6 || 20 2.7 || Santa Ynez River (site C) 4 miles upstream from mouth of Salslpuedes Oreek, near Lompoc, Calif. Oct. 15 4.6 Nov. 25 12.3 || July 9 11.9 Aug. 20 2.8 Hov. 5 9.8 Dec, 1O 14.2 If 22 6.1 Sept ,.23 1.6 Santa Ynez River 2 miles upstream from mouth of Salalpuedes Oreek, -near Lompoc, Calif. July 9 , 12.4 || Aug. 20 3.0 || II Santa Ynez River (site B)» 1& miles upstream from mouth of Salslpuedes Creek, near Lompoc, Calif. Oct. 14 il::i July 22 5.8 Aug. 30 3.3 July 9 Aug. 6 3.2 Sept. 23 l.S » Designated as si .e A previous to water year 1942-43. Sant . Yne ; River above mouth of Salsipuedes Creek, near Lompoc, Calif. Oct. 15 4. > || Dec. 10 14.3 Aug. 6 3.4 Hov. 5 9.3 July 9 12.0 20 3.3 25 12.5 || 22 6.2 Sept. 23 1.7 Santa Ynez River (site A)* between Robinson Bridge and Salslpuedes Creek, near Lompoc, Calif. / Oct. 14 6.1 U July 22 8.5 Aug. 20 5.4 || July 9 15.2 I) Aug. 6 5.8 Sept. 23 2.8 | » Designated as site B previous to water year 1942-43. Santa Ynez Hiver between Backer's crossing and Robinson Bridge, at Lampoc, Calif. Oct. 14 4.8 || July 23 7.8 Aug. 19 3.4 II July 8 14.0 || Aug. 6 4.1 Sept. 23 1.0 || Santa Ynez River at Rucker'a crossing, near Lampoc, Calif. Oct. 14' 5.1 || Dec. 10 15.5 II Aug. 6 3.6 Hov. 5 10.0 July 8 13.2 19 3.4 25 13.3 || 23 7.8 || Sept. 23 .91 Santa Yne a River at H Street Bridge, 'near Lompoe, Calif. Oct. 14 4.2 July 8 15.4 Aug. 5 1.8 Sept. S3 1.1 Hov. 5 10.0 23 7.3 19 3.4 Santa Ynez River at Barrier, near Sarf, Calif. Oct. 14 6.1 || Dec. 10 17.6 H July ,8 10.0 (I Aug. 19 .8.2 Nov. 5 11.8 Jan. 6 22.7 H ^3 7.0 Sept -28 2.1 25 16.4 U Feb. 12 303 jj Aug. 5 5.2 U \ Hot Efpring Oanyon Oreek at- Santa ynsz Elver, near flanta Barbara, Oalif . dot. 16 0.86 Feb. il 1.8 11 Ray 25 0.66 ' 11 Aug. 7 0.39 lov. 6 .37 Har. 26 1.9 11 June 5 ,64 sa .31 . . 24 .44 Apr. 13 1.1 . H 17 .44 ' Sept- 84 .31 bee. 11 .40 28 .99 H July 10 .38 Jan. S .42 Hay 12 .84 § 21 .48 SantiL Cota Creek at Santa Ynez River, near Santa Ynez, Calif. Oct. if 3.5 Feb. 11 6.7 Hay 25 3.9 Aug. 7 2.7 Nov. S 5.0 Har. 26 6.8 June 5 5.8 21 4.2 5.0 Apr. 14 6.3 17 5.0 Sept. 24 2.4 Dec. l| 5.3 28 6.6 July 10 4.5 Jan. 6 6.0 May 12 4.7 21 2.6 MISCELLANEOUS DISCHARGE MEASUREMENTS 403 Miscellaneous discharge measurementa In the Pacific slope basins In California during water year October 1942 to September 1943 Continued STREAMS SOOTH OP SAH FRANCISCO BAY Contlnued Alamo Pintado Creek 1.1 miles above Santa Ynez River, near Solvang, Calif. Discharge Discharge Discharge II Ilscharge Date (sec. -ft.) Date (sec. -ft.) Date (sec. -ft.) »*te (sec. -ft.) Oct. 16 1.7 Feb. 11 3.1 May 25 1.1 Aug. 7 1.1 Kov. 6 2.2 Mar. 26 3.3 June 5 1.3 21 1.2 24 2.4 Apr. 14 3.1 17 1.3 Sept. 24 1.0 Dec. 11 2.4 28 2.5 July 10 1.1 1 Jan. 6 2.6 May 12 1.8 21 1.4 Alisal Creole at Santa Ynez River, near Solvang, Calif. Oct. 15 0.12 Feb. 11 5.6 May 25 0.64 Aug. 7 0.26 NOT. 6 .13 Mar. 26 9.1 June 5 .73 21 .22 24 .11 Apr. 14 5.1 17 .41 Sept. 24 .17 Dec. 11 .10 28 2.3 July 10 .33 Jan. 6 .09 May 12 1.3 21 .36 Kojoqul Creek at Santa Ynez River, near Buellton, Calif. HOT. 6 £10.1 II Feb. 12 3.5 || Hay 13 1.3 july 22 0 24 -:±.2 Mar. 26 9.4 June 5 ±1.2 Aug. 4 0 Dac. 11 :±.2 Apr. 14 6.3 17 JJ.2 Jan. 5 : :|.2 29 2.8 July 10 tt -05 Jt Estimated. I Salalpuedes Creek at Santa Ynez River, near Lompoe, Calif. Oct. 15 1.5 II Dec. 10 1.3 || Aug. 6 . 1.4 || Kov. 5 1.5 July 9 2.7 20 1.7 25 1.3 || 22 2.0 || Sept. 23 .38 1 Ouyama River at Ozena Bridge, near Guyana, Calif. June 30 3.2 || July 27 2.0 || Aug. 31 2.0 : Sept. 28 2.3 Guyana River below Cottonwood Creek, near Cuyama, Calif. Oct. 3 1.8 Jan. 30 25.8 Apr. 27 11.6 July 27 3.4 Kov. 30 7.6 Feb. 5 23.0 June 1 7.2 Aug. 31 3.3 Dec. SB 10.5 25 22.9 30 6.2 Sept. 28 5.5 Cuyama River below Qypsum Creek, near Cuyama, Calif. June 30 3.5 || Aug. 31 0.81 ' || Sept. 28 2.3 || Santa Maria River at Suey Bridge, near Santa Maria, Calif. Feb. 13 Feb. 23 fioo Apri 15 t£8 j May 14 «0.2 21 Mar. 2 22 «* 22 £30$ Apr. 1 30 0 $t Estimated. Santa Maria River at U. S. Highway 101, near Santa Maria, Calif. Feb. 13 0 || Mar. 3 It5 || Apr. 30 0 21 Jt.2 I] apr. 15 & II J$ Estimated. Alamo Creek at Cuyama River, near Santa Maria, Calif. Oct. 7 2,6 Feb. 5 35.1 May 14 5.8 Aug. 5 3.1 24 2.5 21 8.6 26 5.0 18 2.3 Kov. 4 2.4 Mar. 2 7.4 June 4 5.0 Sept. 29 2.4 17 2.4 23 57 15 4.5 Dac. 9 2.3 apr. 1 26.6 July 7 3.6 28 2.5 15 16.1 24 3.7 Slsquoo RlveT 2.3 miles above Labrea Creek, near Sisquoc, Calif.* apr. 1 123 Hay 26 23.6 July 7 4.6 || 16 98 June 3 22.0 Aug. 18 1.8 May 14 35.3 15 16.2 Sept . 30 1.2 1 * Former gaging station "Sisquoc River near Sisquoc, Calif." Sisquoc River below Labrea Creek, near Gary, Calif. Feb. 20 47.5 I] apr. 1 130 || May 14 27.3 june 3 9.6 Mar. 2 %40 || 16 109 || 26. 16.5 I 15 5.3 Sisquoc River diversion to Sisquoc Ranch, near Sisquoc, Calif. July 24, 0.15 second-foot t Labrea Creek near mouth-, near Qary, Calif. Feb. 20 3.9 || Apr. 1 20.8 || Hay 14 0.96 |l Mar. 2 8.7 ||. 16 14.7 || 26 «-05 [I 1$ Estimated. 404 MISCELLANEOUS DISCHARGE MEASUREMENTS Hlsoellaneous discharge measurements In the Pacific slope basins in California during water year October 1942 to September 1943 Continued STREAMS SOOTH OF SAN FRANCISCO BAY Continued Foxen Creek near mouth, near Gary, Calif. Date Discharge Date Discharge Date Discharge Date Discharge (eeo.-ft.) (sec. -ft.) (sec. -ft.) (sec. -ft.) July 24 tto.i Aug. 18 80.1 Sept. 30 tto.s ft Ba tint ted. Tepusquet Creek at bridge 1 mile above mouth, near Qary, Calif. Mar. £4 11.0 II Hay 14 2.7 June 16 1.5 Aug. 18 0.68 Apr. £ 6.2 £6 2.1 July 7 l.£ Sept. 30 .49 16 5.1 || June 3 l.£ 24 .96 Tepusquet Creek at mouth, near Gary, Calif. Mar. 2, 2.1 second-feet 3ALIHAS RIVEH BA3IH Sallnas River at point 4 miles upetream from Atasoadero, Calif. Oct. 17 2.9 HOT. 27 4.8 Aug.^6 12.3 Sept. 11 1.0 HOT. 9 4.6 July 1« 4.0 .4 Sallnas Riyer at bridge near Atasoadero, Calif. Oct. 17 6.6 lev. 27 6.1 July 28 1.3 II Aug. 28 1.7 HOT. 6 16.1 July 16 1.9 Aug. 6 1.6 || Sept. 11 1.7 Sallnas River at Templeton, Calif. Oct. 17 6.7 11 KOT. 28 11.0 || Aug. 6 0.4 II Sept. 11 1.3 HOT. 6 29.0 || July 16 2.1 I) 28 .9 || Sallnas River 200 feet above bridge at Paso Robles, Calif. July 10 0.8 || July 12 ' 0.7 || July 17 0.6 || Sallnas River at San Mlguel, Calif. Oct. 16 19.9 Hov. 28 30.6 || Aug. 6 0.2 Sept. 12 0 Hov. 7 48.6 July 14 .3 || 28 0 Sallnas River above Haclmlento River near' Ban Htguel* Calif. Oct. 16 £8.21 || HOT. 88 91.5 Aug. 6 0.9 Sept. 18 0 HOT. 7 49.6 || fOy 14 .1 86 .2 Sallnas River at highway bridge at Bradley, Calif. Oct. 14 33.4 || HOT. 28 72 Aug. 5 4.2 Sept. 12 4.1 HOT. 7 60 || July 14 7.0 £6 3.8 Sallnas River at highway bridge at San Ardo, Oalif. Oct. 14 26.2 1 Hov. 25 93 || Aug. 6 0 || Aug. 26 0 Fov. 4 90 || July 14 0 || Sallnas River at bridge near San Lucas, Calif. Oct. 14 86.8 fl KOT. 26 109 || Aug. 6 1.2 Aug. 26 0.7 KOT. 4 107 (I July 14 s.i II aallnas River at highway bcldge at King City, Calif. Oet. 14 0 }j HOT. 86 107 Aug. 4 o IJAug. 26 0 Koir. 9 68 II July 14 Q Sallnas River at highway bride* a**? Solo&ad, Oalif. Oct. 13 7.0 HOT. 8« 9.8 Aug. 4 0.6 3»pt-lS 8.5 Hov. 3 7.8 July 14 8.S E6 8.0 Bstwlla Cr*ek at mouth, near San.Hlgwil, Oalif. Dot. 15 6.0 || HOT. 28 9.1 Aug. 6 0 II Sept. 12* °, Hov. 7 9.9 || July 14 0 £6 o 11 Haclmlento River at mouth,near San Higuel, Calif. Oct. 16 2.7 HOT. 28 29.9 Aug. 6 2.2 Sept. 12 1.6 HOT. 7 3.4 July 14 3.7 26 1.8 San Antonio River at mouth, near Bradley, Oalif . Oct. 14 0 Bov. 28 0 || Aug. 6 0 Aug. 26 0 KOT. 7 0 July 14 0 I) MISCELLANEOUS DISCHARGE IffiASUREMENTS 406 JJlscellaneous discharge measurements In the Pacific slope basins In California during miter year October 1942 to fc&teaber 1942 Continued KERB RIVER BASIN South Pork Kent River at former gaging station near Onyx, Oallf. Dec. 4, 38.7 second-feet. TOLAHE LASS BASIN Southern California Edison Co.'3 Tule River conduit near Sprlngyllle, Oalif. Sept. 8, 29.6 second-feet SAH JOAQJJIH RIVBR TRIBUTARIES ABOVE FRBSHO RIVBR North Fork Willow Creek above Crane Valley Reservoir, Calif. Sept. 16, 6.4 second-feet 3ACHAMENTO RIVER BASIN f . _ Sacramento River at former gaging station at Kennett, Calif. Nov. 10, 3,970 second-feet INDEX Page Page "A* Canal at Klamath Falls, Oreg...... 389 Bldwell Bar, Calif., Middle For* Feather Academy* Calif., Dog Creek near...... 192-195 River at...... 314 Dry Creek near...... 194-195 Big Bar, Calif., North Fork Feather Accuracy of field data and computed River at...... 300 results...... 6 Big Bend* Call*., Pit River at...... 282 Acre-foot, definition of...... 1 Big Creek, Calif., Florence Lake near.. 202 Agencies other than Qeologlcal Survey, Huntlogton Lake near...... 208 records collected by...... 18-13 San Joaquln River above...... 196 Alameda Creek near Nlles, Calif...... 174 Shaver Lake near...... 211 Alameda Creek Basin, Calif., gaglng- Big Creek below Huntlngton Lake, Calif. 209 statlon record In...... 174 Big trees, Calif., San Lorenzo River at 164 Alamltos Creek near Edenvale, Calif.... 169 Bcnsall, Calif., San Luls Key River Alamo Creek, Calif., discharge measure near...... 28 ments cf...... 403 Borel Canal at Tllley Creek, Calif..... 179 Alamo Pintado Creek, Calif., discharge Boulder Oreek at Ouyamaca Reservoir, measurements of...... 403 near Julian, Calif...... 24 Alascadero Creek near Qoleta, Calif.... 128 Bowman Lake, Calif., Canyon Creek below 330 Alascadero Creek Basin, Calif., gaglng- Bowman Lake near Oranltevllle, Calif... 329 statlon record In...... 128 Bowman-Spauldlng Canal at Intake, Calif. 331 Alder Creek near Whitehall. Calif...... 350 Brand forte Creek at Santa Cruz, Calif. 166 Allsal Creek, Calif., discharge meas Brea, Calif., Fullerton Creek near..... 94 urements of...... 403 Brea Creek at Fullerton, Calif...... 93 Allso Creek at El Tore, Calif...... 37 below Brea Dam, near Fullerton, Calif. 9S Allso Creek Basin, Calif., gaglng- Brldgevllle, Calif., Van Duzen Rlvc" at 379 statIon record In...... 37 Buchanan dan site, Calif., Chowcallla American River at Fair Oaks, Calif..... 338 River at...... 221 at Sacramento, Calif...... 339 Bucks Creek Reservoir near Bucks Ranch, Middle Fork, near Auburn, Calif...... 4*340 Calif...... 307 North Fcrk, at North Fork Dam, Calif. 538 Buellton, Calif., La Zaca Creek at.*... 138 at Rattlesnake Bridge, Calif...... 557 Butt Creek above Almanor-Butt Creel' Sliver Fork of (touth Fork, near tunnel, near Frattvllle, Calif... 303 iytrara, Calif...... 347 below Almanor-Butt Creek tunnel, near South Pork, near Camlno, Calif...... 348 Prattvllle, Calif...... 304 near Xyburz, Calif...... 341 Butte City, Calif., Sacramento River at 276 American River BaaIn, Calif., gaglng- Butte Creek near Chlco, Calif...... 297 statlon records In...... 336-364 Butte Creek Basin, Calif., gaging- American River flume near Camlno, station record In...... 297 Calif...... 354 Antelope Creek near Red Bluff, Calif... 291 Cache Creek at Yolo, Calif...... 359 Antelope Creek Basin, Calif., gaglng- North Fork, near Lower Lake, Calif... 3,360 statlon record In...... 291 Cajon Creek near Keenbrook, Calif...... 65 Arlington, Calif., Santa Ana River near 41 Calabasas, Calif., Mallbu Creek nerr... 116 Arrowhead Springs, Calif., Strawberry Calaveras River at Jenny Lind, Caljf... 256 Creek near...... 55 Calaveras River Basin, Calif., goging- Waterman Canyon Creek near...... 56 statIon records In...... 256-257 Arroyo Grande at Arroyo Orande, Calif.. 145 Calpella, Calif., East Fork Russlar Arroyo Grande Basin, Calif., gaglng- River near...... 365 statlon record In...... 145 Camlno, Calif., American River flur* Arroyo 6eeo (Los Angeles River Baeln) near...... 354 near Pasadena, Calif...... 107 South Fork American River near...... 342 Arroyo Seco (Sallnas River Basin) near Camp Bonlta, Calif., East Fork San Soledad, Calif...... 168 Oabrlel River near...... 78 Arroyo Seco (Santa llargarlta River Camp Rlnccn, Calif., West Fork San Basin), discharge measurements of 400 Gabriel River at...... 83 Artesla, Calif., Coyote Creek near..... 91 Campbell Creek at Saratoga, Calif...... 171 Ashland, Oreg., Eeene Creek Canal near. 394 Campo Creek near Campo, Calif...... 20 Auburn, Calif., Bear River near...... 333 Canby, Calif., Pit River near...... 4,280 Middle Fork American River near...... 4,340 Canyon Creek below Bowman Lake, Calif.. 330 Avery, Calif., Middle Fork Stanis Carplnterla Oreek, Calif., discharge laus River near...... 845 measurements of...... 401 North Fork Stanislaus River near..... 849 near Carplnterla, Calif...... 187 Azusa, Calif., Rogers Creek near...... 84 Carplnterla Creek Basin, Calif., San Gabriel River near...... 79 gaglng-statlon record In...... 127 Cascade Canal near Fish Lake, Oreg..... 388 Balrd, Calif., McCloud River at...... 287 Cherry Creek near Hetoh Hetchy, Calif.. 236 Bakerefleld, Calif., Kern River near... 177 Chlco, Calif., Butte Creek near...... 897 Baldwin Park, Calif., San Gabriel Chlco Creek near...... 295 River near...... 80 Chlco Creek near Chlco, Calif...... 295 Ballona Creek near Culver City, Calif.. 114 Chlco Creek Basin, Calif., gaglng- Ballona Creek Basin, Calif., gaglng- statlon record In...... 295 statlon record In...... 114 Chlloqxiln, Oreg., Sprague River near... 387 Battle Creek near Cottonwood, Calif.... 290 Willlamson River near,...... 380 Battle Creek Basin, Calif., gaglng- Chlttenden, Calif., Pajaro River neir.. 159 statlon record In...... 890 Chowchllla River at Buchanan dam site, Bear Creek near Vermilion Valley, Calif. 806 Calif...... 221 Bear River (Feather River Basin) near Chowohllla River Basin, Calif., gaglng- Auburn, Calif...... 333 statlon record In...... 881 near Wheatland, Ca,llf...... 334 City Creek near Highland, Calif...... 57-58 Bear River (Mokelumne River Basin) at City Creek Water Co. 'e canal near Pardoe Camp, Calif...... 866 Highland, Calif...... 59 Bear River Canal (Feather River Basin) Claremont, Calif., San Antonio CreeV near Coifax, Calif...... 335 near...... 73-74 407 408 INDEX Page Page Claremont, Calif., Southern Califor Deer Creek Basin, Calif., gsgiag- nia Edison Co.'a conduit near.... 75' statlon record in...... 294 Clear Creek near Igo, Calif...... 288 Devil Canyon Creek near Sat BtJ-nardlno, Clear Creek Basin, Calif., gaging- Calif.,...,.....,.....,..,....,.. 60 station record in...... 288 Dog Creek near Academy, Calif...... 192-193 Clear Lake at Lakeport, Calif...... 368 Don Pedro Reservoir near I« Orange, Clements, Calif., Mokelumne River near. 262 Calif...... 232 Cliff Camp, Calif., North Fork Kings Downey, Calif., Los Angeles River near. 99 River near...... 19C Rio Hondo near...... 112 Clio, Calif., Middle Fork Feather River Drew Creek near Lakevlew, dreg...... 271 near...... 312 Dry Creek near Academy, Calif...... 194-195 Cloverdale, Calif., Dry Creek near..... 369 near Cloverdale, Calif...... 369 Colter Ranch, Calif., Tujunga Creek near 102 Duarte, Calif., Fish Creek near...... 3,85 Cold Creek near Mokeluane Peak, Calif.. 266 Dulzura, Calif., Cottonwool Creek near. 15,16 Colfaz, Calif., Bear River Canal near*. 335 Dulzura conduit near...... 19 Colgate diversion dam, Calif., North Tla Juana River near...... 17 Fork Tuba River at...... 326-327 Dulzura conduit near Dulzu^a, Calif..,. 19 Colton, Calif., Lytle Creek (west chan- Dunnevllle, Calif., Paohee-? Creek near. 160 nel) at...... 64 Heeka 4 Daley Canal near...... 66 East Highlands, Calif,, Plunge Creek Warm Creak near...... 53-54 near...... 51 Colasa, Calif., Sacramento River at.... 276 Eaton Creek near Pasadena, Calif...... 11C Coluaa and Tolo Basins, Calif., gaglttg- Echo Lake flume near Vade, Calif...... 343 station reeorda in...... 355-362 Edeavale, Calif., Alamitos Creek near.. 169 Computations, accuracy of results of... 6 Coyote Creek near...... 173 Concow Creek near Yankee Hill, Calif... 310 Bel River at Hullvllle, Calif...... 374 Conn Creek near St. Helena, Calif...... 364 at Scotia, Calif...... 376 Contents, definition of...... 1 at Van Ardsdale Dam, near Potter Control, definition of...... 1 Valley, Calif...... 375 Cooperation, record of...... 14 South Fork, near Miranda- Calif...... 378 Copoo, Calif., Fall Creek at...... 393 Eel River Basin, Calif., giglag-atatlen Klamath River near...... 384 records in...... 373-379 Corona, Calif., Santa Ana River near... 42,43 El Capitan Dam, Calif., Ban Diego River Temeseal Creek near...... 72 at...... 33 Cosgrove Creek near Valley Springs, El Dorado Canal near Kybur% Calif..... 349 Calif...... 257 El Toro, Calif,, Aliso Cre?k at...... 37 Cosumnes River at Michigan Bar, Calif.. 270 Eleanor Creek near Hetch Hitchy, Calif. 238 Cottonwood, Calif., Battle Creek near.. 290 Elslnore, Oallf,, San Jaclntc River ' Cottonwood Creek near...... 289 near...... 70 Cottonwood Creek (Qoose Lake Basin) Elslnore Lake at Elslnore, Calif...... 71 near Lakevtew, dreg...... 272 Enterprise, Calif., Paleran Canal at... 316 Cottonwood Creek (San Joaqutn River South Fork Feather River at...... 315 Basin) near Frlant, Calif...... 216-217 Estrella Creek, Calif., discharge meas Cottonwood Creek (Tia Juana River urements of...... 404 Basin) above Tecate Creek, near Etlwanda, Calif., Day Creev near...... 67 Dulsura, Calif...... 16 Exchequer, Calif., Lake MO "lure at...... 225 at Horena Dam, Calif...... 15 Merced River at...... 2E6 discharge measurements of...... 400 near Dulzura, Calif...... 15 Fair Caks, Calif., American River at... 338' Cottonwood Creek (Sacramento River Fall Brook, Calif., Santa Margarlta Basin) near Cottonwood, Calif.,.. 889 River near...... 31 Cottonwood Creek Basin, Calif., gaglng- Fall Creek at Capco, Calif...... 393 statlon record in...... 289 Falls Creek near Hetch Hetfhy, Califi.. 835 Coyote Creek (tributary to San Francis Fall River Mills, Calif., Pit River at. 281 co Bay) near JSenvale, Calif..... 173 Feather River at Nlcolaus, Calif...... 302 near Hadrone, Calif...... 172 Middle Fork, at Bidwell Bar, Calif... 314 Coyote Creek (tributary to San Gabriel below Sloat, Calif..,..'...... 313 Rive*:} aear Arteela, Calif...... 91 near Clio, Calif...,...... 312 Coyote Creek (tributary to Ventura j- near Orovllle, Calif...,...,.,.....,.. 301 Rlver) near ventura, Calif...... 126, North Fork, at Big Bar, Calif...... 300 Coyote Creek Mala, Calif., gaglng- . near Prattvllle, Calif...... 299 station records in...... 172-173 South Fork, at Enfcerprlai. Calif..... 315 Craftoaville, Calif., Mill Creek power West Branch, near Yankee Hill, Calif. 309 canal 1 near...... SO Feather River Basin, Calif., gaging- Hill Creek power canals B and S near. 49 fcation records ia...... S0S-53& Crane Valley Reservoir, Calif., Pacific Flllmere, Calif., Plllmore Irrigation Gas & Electric Co. conduit No. 3 Co.'e eanal near...... 181 near.,...,....,...... ,.,., 214 Sespe Creek near*.,...... ISO Willow Creek below...... 213 Flllmore Irrigation Co.'a canal near Crescent City, Calif., Smith River near 399 Flllmore, Calif...... 121 Crescent Mills, Calif,, Indian Creek Fine Bold Creek near Frlant, Calif..... 215 near...... 305 Fish Creek near Duarte, Calif...... 3,85 Cucamonga Creek near Upland, Calif..... 68 Fish Lake, Oreg., Cascade Canal near... 368 Culver City, Calif., Ballona Creek near 114 Floods, apeelal reports on-,...,...... 12 Cupertlno, Calif., Stevens Creek near.. 166 Florence Lake, Calif.,1 Soii*.h Fork San Cuyama River, Calif., discharge meas Joa Page Page Prlant, Calif., Gottonwood Creek noar.216-217 Kerekhoff powerhouse, Calif., San Fin* Gold Creek near...... 215 Joaquln Rlrer below...... 8 Llttla Dry Creek near...... 818-219 Kern Rlrer near Bakersfield, Calif..... 177 Mlllerton Lain at...... 197-198 near Kernville, Calif...... 176-176 San Joaquia River below...... 199 South Fork, at Isabella, Calif...... 180 Pullerton, Calif., Brea Greek at...... 92,93 discharge measurement of...... 406 Fullerton Creek at Fullerton, Calif.... 95 Kern Rlrer Basin, Calif., discharge below Fullerton Dam, Bear Brea, Calif. 94 peasureaient In...... 405 gaglng-statlon records In...... 175-180 Gary, 0allf,, Sisquoe Hirer near...... 144 Kern Rlrer No. 3 Canal near Kernville, Qlendora;, Calif., Dalton Greek near.... 88 Calif...... 178 Little Dalton Creek near...... 89 Kernrllle, Calif., Kern Hirer near.-... 175-176 Oobernador Creek, Gallf., discharge Kern Hirer No. 3 Canal near...... 1,78 measurements of...... 401 Keswlck, Calif., Sacramento Rlrer at... 273 Qoleta, Calif., Alaaoadero Creek near., 128 Kings Rlrer above North Fork, Calif.... 188 San Jose Greek near/...... 129 at Pledra, Calif...... 189 Ooodyears Bar, Calif » North Fork Tuba North Fork, below Raneherla Creek, River below...... 324 Calif...... 191 Qoose Lake Basin, Oreg., gaglng-statlon near Cliff.Camp, Calif...... 190 records In...... S71-S72 Klrkwood, Calif., seepage from SUver Oraniteville, Calif., Bowman Lake near. 329 Lake near...... 346 Graton, Calif., Laguna de Santa Rosa Silver Lake Outlet near...... 345 near...... 870-372 Twin Lakes Outlet near...... 348 Qreenspot pipe line1. See Southern Klttrldge, Calif., Merced Hirer at..... 224 California Bdlsori Co. 's canal Klamath Falls, Oreg., "A" Canal at..... 389 and Greenapot pipe line. Keno Canal at...... 390 drizzly Creek near Storrle, Calif....;. 308 Link Rlrer at...... 382 Quadalupe, Calif., Quadalupe Creek at.. 167 Upper Klamath Lake near...... 381 Santa Maria River at...... 142 Klamath Hirer at Keno, 'Oreg...... 383 Quadalupe Creek at Guadalupe, Calif.... 167 at Somestar, Calif...... 386 at San Jose, Calif...... 168 below Falls Creek, near Copeo, Calif. 384 Quadalupe Creak Basin, Calif., gaglng- dlrerslon from, to Lost River nrar station records In.,...... 167-171 Olene, Oreg...... 392 Guenec, Calif., Putah Creek near...... 361 Klamath Rlrer Baaln, Calif.-Oreg., Onerneville, Calif., Russian River at.. 368 gaglng-statlon records In.,*....380-398 smaller reservoirs In...... 386 Haines Creek near Tujunga, Calif...... 1C6 Knights Ferry, Calif., Oakdale Caral Hamilton City, Calif., Stony Creek near 296 near...... 266 Hansen Dan, Calif., Tujunga Creek below 104 South San Joaquln'Canal near...... 254 Harris, Calif., San Antonio Creek at... 140 Knights Landing, Calif., Knights land Hat. Creek near Hat Creek, Calif...... 286 ing Ridge Cut at...... 365 Bealdsburg, Calif., Russian Hirer near. 367 Sacramento River at...... 278 Hetoh Hetohy, Calif., Cherry Creek near 236 Enlghts Landing Ridge Cut at- Knlglfra Eleanor Creek near...... 238 Landing, Calif...... 3S6 Falls Creek near...... 235 Knowles, Calif., Fresno River near..... 220 Hetoh Hetchy Reservoir at...... 230 Kyburi, Calif., El Dorado Canal nrar... 349 Lake Eleanor near...... 837 Silver Fork of South Fork American Tuolumne Rlrer near...... 231 River near...... 347 Hetch Hetohy Reservoir at Hetch Hetohy, South Fork American River near...... 341 Calif...... 7.. 230 Highland, Calif., City Creek near...... 67-58 La Orange, Calif., Don Pedrc Reservoir City Creek Water Co.'s canal near.... 69 near...... 232 Hoopa, Calif., Trinity Rlrer near...... 398 Modesto Canal near...... 242 Hopland, Calif., Russian Rlrer near.... 366 Tuolumne River near...... 233 Hopper Creeic near Plru, Calif...... 119 Turlock- Canal near...... 243 Hot Spring Canyon Creek, Calif., dis La Zaca Creek at Buellton, Calif...... 138 charge measurements of...... 402 Laguna de Santa Rosa near Graton, Suaana River near Santa Maria, Calif... 143 Calif...... 370-372 HullYllle, Calif., Bel Hirer at...... 374 Lake'Almanor near Prattvllle, Calif.... 298 Lake Plllsbury at...... 373 Lake Eleanor near Hetch Hetchy, Crllf.. 237 HuntIngton Lake, Calif,, Big Creek Lake Hodges, Calif., San Diegulto River below...... 209 at...... 27 Huntlngton Lake near Big Creek, Calif.. 208 Lake MeClure at Exchequer, Calif...... 225 Huntlngton-Sharer conduit at outlet, Lake Plllsbury at Hullvllle, Calif..... 373 Calif...... 212 Lakeport, Calif., Clear Lake at...... 368 Hyatt Prairie Reservoir, Oreg., con Lakeview, Oreg., Cottonwood Creek near. 27S tents of...... 386 Drew Creek near...... 271 Lancha Plana, Calif., Mokelumne Rl-er Ice House, Calif., South Fork Silver at...... 261 Creek near...... 363 Lewiston, Calif., Trinity River at..... 397 Igo, Calif., Clear Greek near...... 288 Likely, Calif., South Fork Pit Hirer Indian Creek near Crescent Mills, Calif. 305 near...... 284 Isabella, Calif., South Fork Kern Link River at Klamath Falls, Oreg...... 382 Rlrer at...... little Dalton Creek near Qlendora, Calif...... 89 Jacksonville, Calif., Woods Creek near. 241 Little Dry Creek near Frlant, Calif...218-219 Jamul Creek near Jamul, Calif...... 21 Little Santa Anita Creek near Sierra Jenny Llnd, Calif., Calareras Rlrer at. 256 Madre, Calif...... 109 Jones Bar, Calif., South Fork Tuba Little Tuiunga Creek near San Ferrando, Rlrer at...... 328 Calif...... 105 Julian, Calif., Boulder Creek near..... 24 Livingston, Calif., Merced Hiver rear.. 227 Lompoc, Calif., Salslpuedes Creek near. 139 Kaweah Hirer near Three Hirers, Calif.. 186 Santa Ynez River near...... 134,135 Korth Fork, at Kaweab, Calif...... 187 Lone Pine Creek, Calif., discharge Eeddle, Calif., Spanish Creek at...... 306 measurements of...... 401 Keenbrook, Calif., Cajon Creek near.... 65 Long Barn, Calif., South Fork Star 1s- Keene Creek Canal near Ashland, Oreg... 394 laus River near...... 251 Kennedy Meadows, Calif., Middle Fork Tuolumne Canal near...... 253 Stanislaus Hirer at...... 244 Long Beach, Oallf., Los Angeles Rl^er Keno, Oreg., Klamath Rlrer at...... 383 at...... 100 Keno Canal at Klamatb. Falls, Oreg...... 390 Lcs Alamltos, Calif., San Gabriel River near...... 82 410 INDEX Page Page Los Angeles River at Long Beach, Oalif. 100 Montebello, Oalif., Rio Hondi Slough at Los Angeles, Oalif...... 98 near...... 113 at Sepulveda Dam, Oalif...... 96 Montecltc, Calif., Santa Yner* River below Sepulveda Dan, Oalif...... 97 near...... 130 near Downey, Oalif...... 99 Mcrena Dam, Oalif., Oottonwoid Creek at 15 Los Angeles River Basin, Calif., gaging- Morgan Hill, Oalif., Dvas Oriek near... 161 station recorde in...... 96-113 Harrieta Creek at Temeoula, Oalif...... 33 Los Gatos Greek (Quadalupe Creek Basin) at Los Gat03, Calif...... 170 Nacimlento River, Oalif., discharge Los Mollnos, Oalif., Kill Creek near... 292 measurements of...... 404 Loat River diversion Canal near Olene, near San Mlguel, Oalif...... 156 Oreg...... S91 Napa River near St. Helena, Calif...... 363 Lower Lake, Calif., North Fork Oaehe Napa River Baaln, Calif., gaTing- Creek near...... 3,360 statioa records in...... 363-364 Lytle Greek, east channel of, at San Narrows Dam, Calif., Yuba River at..... 319 Bernardlno, Calif...... 63 Nestor, Oalif., Tia Juaha River near... 18 near Fontana, Calif...... 61-62 Newman, Calif., Orestimba Or^ek near... 229 west channel of, at Oolton, Calif.... 64 San Joaquin River near...... 200 Nicolaua, Calif'., Feather River at..,.. 302 MeCloud River at Baird, Calif...... 287 Niles, Oalif., Alameda Greek near...... 174 near IfcCloud, Calif...... 286 Nojcqul Creek, Calif., discharge meas Madrone, Calif., Coyote Creek near..... 172 urements of...... 403 Malibu Creek at Crater Gamp, near North Fork, Calif., Kings River above.. 188 Oalabasas, Calif...... 116 North Fork Dam, Calif., Nort"i Fork Malibu Cre«,k Basin, Calif., gaging- American River at...... 336 station record In...... 116 North San Juan, Calif., Oregon Creek Maria Ygnacio Creek, Oalif., discharge near...... 322 measurements of...... 401 Marysville, Calif., Yuba River at...... 320 Oakdale Canal near Knights F*>try, Calif. 255 Matlllja Creek at Ifatlllja, Oalif...... 123 Oakland Recreation Camp, Calif., Middle North Fork, at Mat111Ja, Oalif...... 125 Tuolumne River at...... 240 Medley Lakes Outlet near Vade, Calif... 344 South Fork Tuolumne River near...... 239 Meets & Daley Canal near Colton, Oalif. 66 Olene, Oreg., diversion from Klamath Melones powerhouse, Calif., Stanislaus River to Loat River ne^r...... 392 River below...... 247 Lost River diversion canal near...... 391 Melones Reservoir at Melones Dam, Calif. 246 O'Neill ditch near Ysidora, Calif...... 34 Mentone, Oalif., Mill Creek near...... 48 Oregon Creek, Calif., Middle Fork Santa Ana Rive. near...... 38-39 Yuba River above...... 318 Southern California Edison Co. 'a Oregon Creek near North San Juan, Cali£ 322 canal and Oreenspot pipe line Orestimba Creek near Newman, Oalif..... 229 near...... 46-47 Orestimba Creek Basin, Calif., gaging- Merced River at Exchequer, Calif...... 226 atation record in...... 229 at Happy Isles Bridge, near Yoaemite, Orovllle, Calif., Feather River near... 301 Calif...... 222 Otay River at Savage Dam, Calif...... 22 at Klttrldge, Calif...... 224 Otay River Basin, Calif., gating- at Pohono Bridge, near YoSemite, station records in...... 21-22 Calif...... 223 near Livingstcn, Calif...7...... 227 Pacheco Ore elf near Dunnevlll'*, Oalif... 160 Merced River Basin, Oalif., gaglng- Pacific Gas & Electric Co. crtidult; near statloa records in...... 222-228 Springvllle, O.lif...... 184 Mesa Grande, Calif., San Luie Rey River Pacific Oaa ft Electric Co. conduit near...... 27 No. 3 near Qrane Valle-' Reservoir, Santa Ysabel Creek near...... 26 Calif...... 214 Michigan Bar, Calif., Coaumnea River at 270 Paeoima Creek near 8cm Fernaido, Calif. 101 Middle Tuolumne River at Oakland Recre Pajaro River near Chittenden Calif,... 159 ation Camp, Calif...... 240 Pajaro River Baa in, Calif., gaglng- Mill Creek (Sacramento River Basin) atation records in...... 159-163 near Loa Molinos, Calif...... 292 Palermo Canal at Enterprise, Calif..... 316 Mill Creek Basin, Calif., gaging- Pardoe Camp, Calif., Bear Rl'er at..... 266 station record in...... 292 Pasadena, Calif., Arroyo Sect near..... 107 Mill Creek (Santa Ana River Basin) near Eaton Creek near...... 110 Mentone, Calif...... 48 Paakenta, Calif., Thomas Cretk at...... '293 Mill Creek power canal 1 near Crafbon- Paso Robles, Calif., Salinaa River at.. 151 ville, Calif...... 50 Philadelphia Canal near Strawberry, Mill Creek power canals 2 and 3 near Oalif...... 4...... 852 Craftonville, Calif...... 49 Pico, Calif., San Gabriel Ri'er at..... 81 Mlllerton Lake at Friant, Calif...... 197-198 Piedra, Calif., Kings River at...... 189 Milton, Calif., Middle Fork Yuba Piru, Calif., Hopper Creek' n-tar...... 119 River at...... 317 Piru Creek near...... 118 Milton-Bowman tunnel at outlet, Calif.. 321 Piru Creek near Piru, Calif...... 118 Miranda, Calif., South Fork Eel River 'Pit River at Big Bend, Oalif...... 282 near...... 378 at Fall River Mllle, Oalif...... 281 Modesto Canal near La Orange, Calif.... 242 near Conby, Calif...... 4, 280 Mokeluvne Hill, Calif., Mokelumne River near Ydalpom, Calif...... 283 near...... 26C South Fork, near Likely, 0-llf...... 284 Mokelumne Peak, Calif., Cold Creek near 265 Pit River Baa In, Calif., gftg4wg-statioa Hfokelumne River at Lancha -Plana, Oalif. 261 records in...... 4.280-287 , at Woodbrldge, Calif...... 263 Pitman Creek below Tamarack Creek, Middle Fork, at West Point, Calif.... 267 Calif...... 210 near Clements, Calif...... 362 Placerville, Calif., Silver Creek near. 362 near Mokelumne Hill, Calif...... 260 Pleyto, Calif., San Antonio River at... 157 Norbh Fork, below Salt Springs Dam, Plunge Creek near East Highlands, Oalif. 51 Calif...... 259 Porterville, Calif., Tule Rl">er near... 183 Soubh Fork, near West Point, Calif... 268 Potter Valley, Oalif., Eel R'.ver near.. 375 Uokelumne River Basin, Calif., gaging- Potter Valley powerhouse t^ilrace station records in...... 258-270 near...... 377 Mono Creek near Vermilion Valley, Potter Valley powerhouse tailrace near Calif..,...... v ...... 207 Potter Valley, Oalif...... '377 Monrovia, Calif., Sawpit Creek pear.... S6 Pozo, Calif., Sallnas Reservoir bear... 148 Hontebello, Calif., Rio Hondo near..... Ill Salina's River near...... ' 147 Toro Creek near...... *.... 153 INDEX1 411 Page Prado, Calif., Saata Ana River near...* 44 San Dlegulto River Basin, Calif., Prattrllle, Calif., Butt Creek above gaging-station records in...... 86-27 Almanor-Butt Creek tunnel, near.. 303 San Divas Creek near San Dlmaa, Calif.. 87 Butt Creek below Almanor-Butt Creek San Fernando, Calif., Little Tuguina tunnel, near...... **...... 304 Creek near...... 106 Lake Alaanor near...... 298 Pacoima Creek near...... 101 Berth Fork Feather River near...... 290 San Gabriel River at Plco, Calif...... 81 Publications on etream flow by Oeolog- at Spring Street, near Los Alamitos, loal Surrey...... 6-10,12 Calif...... 62 by State agencies. .» ...... «.». 10-11 below Santa Fe Dam, near Baldwin Park, Putah Creek near (Juenoo, Calif...... MX Calif...... 80 near Winter*, Calif...*...... 86S Bast Fork, near Camp Bonlta, Cal'f... 78 near Acusa, Calif...... 70 Ranoberla oreefc Oallf., North Fork West Fork, at Camp Rlnoon, Calif..... 89 Klnge Hlver belor...... 19X San Gabriel River Basin, Calif., Rattlesnake Bridge, Calif., North Pork gaging-station records in...... 78-96 American River at*...... 337 San Jaclnto River near Elsinore, C-llf. 70 Red Bluff, Calif., Antelope Creek near. 291 near San Jaclnto, Calif...... 60 Sacramento Hirer near...... 274 San Joaquln River above Big Creek, Redlands, Calif., San Tlmoteo Creek Calif...... 196 near...... 62 below Friant, Calif...... 199 Rio Honilo near Downey, Calif...... 112 below Kerokhoff powerhouse, Calif. 3 near Montebello, Calif...... Ill near Neman, Calif....~...... 200 Rio; Hend» Slough near Montebello, Calls 118 near Vernal!*, Oallf...... 201 Kipon, Calif., Stanislaus River at..... 246 South Fork, near Florence Lake, Calif. 203 Rogers Creek near Azuaa, Calif...... 84 tributaries above Fresno River, dis Runoff In inches, definition of...... 1 charge measurement of...... 406 Russian River at Suerneville, Calif.... 368 gaging-statioa records on...... 2C2-219 East Pork, near Oalpella, Calif...... 365 San Joaquln River Basin, Calif., near Bealdsburg, Calif...... 367 gaging-station records In...... 196-270 near Hopland, Calif...... /.. 366 San Jose, Calif., Quadalupe Creek at... 168 Russian River Basin, Calif,, gaging- San Jose Creek (San Gabriel River station records In...... 365-372 Basinl near Whittier, Calif...... 90 San Jose Creek (directly tributary to Sacramento, Calif., American Kivwp at** 330 Pacific Ocean), Oallf., dis Sacramento River at Butte City, Oallf.. 276 charge measurements of...... 401 at Oolusa, Calif...... 276 near Oeleta, Calif...... 129 at Keswick, Calif...... 273 San Jose Creek Basin, Calif., gagiig- at Knights Landing, Calif...... 278 statlon record in...... 129 at Verona, Calif...... 279 San Juan Capistrano* Calif., San Jian below Wilklns Slough, Calif...... 277 Creek near...... 36 discharge measurement of...... 406 Trabueo Creek near...... 36 near Red Bluff, Calif...... 274 San Juan Creek near San Juan Caplstrano, Sacramento River Basin, Calif., dis Calif...... 35 charge measurement In...... 405 San Juan Creek Basin, Calif., gaglia;- gaging-station records In...... 273-362 statlon records in...... ;.... 36-36 St. Helena, Calif., Conn Creek near.... 364 San Lorenco River at Big Trees, Calif.. 164 Napa River near...... 363 San Lorenzo River Basin, Calif., gaging- Sallnas Reservoir near Pozor Calif..... 148 station records In...... 164-166' Salinas River above Pilltas Creek, near San Luis Oblspo, Calif., Steiner C^eek Santa liargarlta, Calif...... 140 near...... 146 at Paso Robles, Calif...... 151 San Luis Oblspo Creek Basin, Calif., discharge measurements of...... 404 gaging-station record In...... 146 near Pozo, Calif...... 147 San Luis Key River at Lake Henshaw. near Santa Margarlta, Calif...... 160 near Mesa Qrande, Calif...... 27 near Spreckels, Oallf...... 152 near Bonsall, Calif...... 28 Salinas River Basin, Calif., discharge San Luis Hey River Basin, Calif., measurements In...... 404 gaging-station records in...... 27-26 gaging-station records In...... 147-166 San Mlguel, Calif., NacIndento Rlvtr Salmon River at Somesbar, Calif...... ^. 396 near...... 166 Salsipnedes Creek, Calif., discharge San Tlmoteo Creek near Redlands, Cnif. 52 measurements of...... 403 San Vlcente Creek at San VI cente D"n, near Lompoc, Calif...... 139 at Foster, Calif...... 25-26 Salt Springs Dam, Calif., North Fork near Foster, Calif...... 26 Hokelumne River below...... 259 near Santa Ynez, Calif...... 133 Tiger Creek powerhouse conduit below. 264 Santa Agueda Creek near Santa Ynes. Salt Springs Reservoir near West Point, Calif...... 137 Calif...... ;....., 258 Santa Ana, Calif., Santa Ana River at.. 45 San Antonio Creek (Santa Ana River Santiago Creek at...... 7? Basin) near Clarement, Calif..... 73-74 Santa Ana River at Auburndale Brld-">, San Antonio Creek (tributary to Pacific near Corona, Calif...... 43 Ocean) at Harris, Calif...... 140 at E Street Bridge, near San San Antonio Creek Basin, Calif., gag Bernardlno, Calif...... 40 ing-station record In...... 140 at Hamner Avenue, near Corona, C^llf. 42 San Antonio River at Pleyto, Calif..... 157 at Riverside Harrows, near Arlington, discharge measurements of...... 404 Calif...... 41 San Benlto River below Willow Creek at Santa Ana, Calif...... 45 School, Calif...... 163 below Prado Dam,'near Prado, Calif... 44 San Bernardlno, Calif., Devil Canyon discharge measurements of...... 400-401 Creek near...... 60 near Mentone, Calif...... 38-39 Lytle Creek (east channel) at...... 63 Santa Ana River Basin, Calif., gaging- Santa Ana River near...... 40 station records in...... 38-7V San Diego River at El Capltan Dam, Santa Anita Creek near Sierra Madr% Calif...... 23 Calif...... 108 near Santee, Calif...... 23-24 Santa Barbara, Calif., Santa Ynez San Diego River Basin, Calif., gaging- River near...... 131,132 station records In...... 23-26 Santa Clara River near Saugus, Calif... ' 117 San Dlegulto River at'Lake Hodges, Santa Clara River Basin, Calif., , Calif...... 27 gaging-station records In...... 117-122 discharge measurements of...... 400 Santa Cota Creek, Calif., discharge measurements cf...... 402 412 INDEX Page Pag* Santa Cruz, Calif,, Brand forte Creek Southern California Edison Co. 'a rule at...... 165 River conduit near Sprlngvllle, Santa Cruz Creek near Santa Ynez, Calif., discharge measurement of. 405 Oallf...... 156 Spanish Creak at Keddle, Calif...... 306 Santa Margarlta, Calif., Sallnas River Sprague River near Chlloqulc. Oreg..... 387 near...... 149,150 SpreokeIs, Calif., Sallnas Diver near.'. 152 Santa Margarlta Creek near...... 154 Spring Valley ditch near Yankee Hill, Tassajero Creek near...... 155 Calif...... 311 Santa Hargarlta Creek near Santa Sprlngvllle, Calif., North F-rk of Margarlta, Calif...... 154 Kiddle Fork Tule River near...... 182 Santa Iwrgarlta River at Ysldora, Calif. 32 Pacific Gas k Electric Co. conduit near Fall Brook, Calif...... 31 near...... 184 Santa Margarlta River Baa In, Calif., Stage-discharge relation, definition of 1 gaglng-statlon records In...... 29-34 Stanislaus River at Rlpon, Calif...... 248 Santa Maria, Oallf., Cuyaoa River near. 141 below Helonea powerhouse, Calif...... 247 Huaana River near...... 143 Middle Fork, at Kennedy Meadows, Oallf. 244 Santa Maria River at Quadalupe, Calif.. 142 at Sand Bar Flat, near ivery, Oallf. 245 discharge measurements of...... 403 North Fork, near Avery, Calif...... 249 Santa Maria River Basin, C&L1&, gaging- South Fork, at Strawberry, Calif..... 250 atatlon records In...... 141-144 near Long Barn, Calif...... 251 Santa Paula Creek near Santa Paula, Stanislaus River Basin, Calif., gaglng- Calif...... 122 statlon records in...... 244-255 Santa Ynez, Calif., Santa Agueda Creek Stelner Creek near San Luis Oblspo, near...... 137 Calif...... 146 Santa Cruz Creek near...... 136 Stevens Oreek near Oupertlnc, Calif.... 166 Santa Ynez River near...... 133 Stevens Oreek Basin, Oallf., gaglng- Santa Ynez River at Jaaeson Lake, near statlon record in...... 166 Honteolto, Calif...... 130 Stony Creek near Hamilton City, Calif.. 296 at Pine Canyon, near Lompoc, Calif... 135 Stony Creek Basin, Calif., gaging- below Gibraltar Dam, near Santa > station record In...... 296 Barbara, Calif...... 132 Storrle, Calif., Grizzly Creek near.... 308 discharge measurements of...... 401-402 Strawberry, Calif., Philadelphia Oanal near Lompoc, Calif...... 134 near...... 252 near Santa Barbara, Oallf...... 131 , South Fork Stanislaus River at...... 250 near Santa Ynez, Calif...... 133 Strawberry Creek near Arrowhead Springs, Santa Ynez River Basin, Calif., gaging- Calif...... 55 atatlon records In...... 130-139 Success, Calif., South Fork Tule River Santa Ysabel Creek, Calif., discharge near...... 185 measurements of...... 400 Sunland, Calif., Tujunga Creek near.... 103 near Mesa Grande, Calif...... 26 Sweetwater River at Sweetwater Dam, Santee, Calif., San Diego River near... 23-24 Calif...... 22 Santiago Creek at Santa Ana, Calif..... 77 Sweetwater River Basin, Calif., gaglng- near Villa Park, Calif...... 76 statlon record in...... 22 Saratoga, Calif., Oampbell Creek at.... 171 Saugus, Oallf., Santa Clara River near. 117 Tamarack Creek, Calif., Plta-*n Oreek Savage Dan, Calif., Otay River at...... 22 below...... Sawplt Creek neer Monrovia, Oallf...... 86 Tassajera Creek near Santa I'-rgarlta, Scotia, Calif., Bel River at...... 376 Calif...... 155 Scott River near Fort Jones, Calif..... 395 Teoate Creek, Calif., disohsrga Baoond-feet per square mile, definition measurements of...... 400 of...... 1 Temeoula, Oallf., Murrleta Creek at... 33 Second-foot, definition of...... 1 Teneeula Creek near. 29-30 Seeend-foot-day, definition of...... 1 Temeeula Creek at Bigger Cat yon, near Sepulveda Dam, Calif., Loa Angeles Temecula, Calif....,....,...... River at...... 96 at Railroad Canyon, near Twneoula, Los Angeles River below...... 97 Calif...... 30 Seape Creek near Flllmore, Calif...... 120 Temescal Creek near Oorona» Calif...... 72 Shaver Lake near Big Creak, Oallf,...,. 211 Tenaya Creek near Yos«alte, Calif...... 228 Sierra City, Calif., North Pork Yuba Tepusquet Creek, discharge n«a8ur«m«»ts River near...... ?.... 323 of...... *.....,.....,.. 404 Sierra Madre, Oallf., Little Santa Terms, definition of...... 1 Anita 'Creek near...... 109 Thomas Oreek at Paakenta, Oelif...... 298 Santa Anita Creek near...... 108 Thomas Creek BaaIn, Calif., gaging- Sliver Creek at Union,Valley, Calif.... 351 Btatlon record in...... 293 near Plaeorvllle, Calif...... 352 Three Rivers, Calif.> Kaweat River near ,186 South Fork, near Ice House, Calif.... 355 Tia Juana River near Duliurs, Calif.... 17 Sliver Fork. See American River, near Nestor, Calif...... 18 Silver Fort" of South Forfe...... Tla Juaaa River Basis, Oallf., gaglae* Silver Lake Outlet near Klrkwood, Oallf. 345 station records In...... 16-20 seepage from, near Klrtorood, Calif... 346 Tiger Creek powerhouse conch;it below Slsquoo River, Oallf., discharge meas Salt Springs Dam, Calif...... 264 urements of...... 403 Tilley Creek, Calif., Borel Canal at... 176 near Gary, Calif...... 144 Time oasis of records...... 5 Sloat, Oallf., Middle Fork Feather Topanga Creek near Topanga E«aoh, Oallfi. 115 River below...... 313 Topanga Creek Basin, Calif., gaging- ' Smartvllle, Calif., Deer Creek near.... 332 station record In...... 116 Smith River near Crescent City, Calif.'. 396 Toro Oreek near Paso, Oallf...... 163 Smith River Basin, gaglng-statlon Trafruoo Creek near San Juan Capietrano, record In...... 369 Calif...... 36 Boledad, Calif. t Arroyo Seeo near...... 168 Tree Plnoa Creek Bear Tres Itaoa, Somesbar, Calif., Klamath River at,..,. 385 oaiif...... :.,...,.... y» Salmon River at...... 396 Trinity River at Lewlston, C-llf...... 30T South San Joaqulu Canal near Knights near Hoopa, Qallf...... 368 Parry, Oallf...,,...,...... 864 Tujoaga, Calif., Halrws CraeV: near..... 106 Southern California Bfllaon Cer,'» canal Tulanga Oreek below Sanaen I«aor Oallf,. 104 and Qreeaspot etpe Una near near Oolby Ranch, 0«llf...... 106 Ifentoae, Calif..,... ,....,...... 46-47 a«ar Sunland, Oallf...... 109 Southern California Bdlson 0»»'» conduit fulare Lake in Kinga Count*, Oallf....* 1S1 near Claremont. Calif.*...,*.....* 75 Tular* Lak« Basin, Oallf^ discharge » measurement In...... 405 INDEX 413 Page Page Tulare Lake Basin, Calif., gaging- Waterman Canyon Creek near Arrowhead statIon records in...... 181-195 Springs, Calif...... 66 Tule River near Portervllle, Calif.,.. 183 West Point, Calif., Middle Fork Middle Pork of north Fork, near Mokelunne River at...... 267 aprlngvllle. Calif...... 188 Salt Springs Reservoir near...... 258 South Fork, near Success, Calif..... 185 South Fork Itokeluame River near... 268 Tuoluane Canal near Long Barn, Calif.. 253 Wheatland, Calif., Bear River hear... 334 Tuolumne City, Calif., Tuoluame'Rives Whitehall, Calif., Aider Creek near.. 350 at...... 834 Whittler, Calif., San Jose Creek near 9P Tuolunm^ River above La Orange Dam, Wilklns Slough, Calif., Sacramento near La Grange, Calif...... 233 River below...... 277 at Tuolumne City, Calif...... 834 Willlantson River below Sprague River, neai* Hetoh Hetehy, Calif...... 231 near Chiloquln, Oreg...... 380 South Fork, near Oakland Recreation Willow Creek below Crane Valley Hese~- Camp, Calif...... 23? volr, Calif...... 213 Tuoluwne River Basin, Calif., gaglng- North Fork, above Crane Valley Reser statlon records In...... 230-243 voir, Calif., discharge measure Turlock Canal near La Orange, Calif... 243 ments of...... 405 Twin Lakes Outlet near Klrkwood, Calif. 348 Willow Creek School, Calif., San Benlto River near...... 163 Upland, Calif,, Cucamonga Creek near.. 6S1 Winters, Calif., Putah Creek near...... 362 tfpper Klanath Lake near Klaoath Falls, Woodbrldge, Calif., Mokelumne River at 863 Oreg...... 381 Woodbrldge Canal at...... 269 Union Valley, Calif., Silver Creek at. 351 Wocdbrldge Canal at Woodbridge,-Calif.. 269 Ovas Creek near Morgan Hill,'calif.... 161 Woodland, Calif., Yolo bypass near....356-357 Woods creek near Jacksonville, Calif... 241 Vade, Calif., Echo Lake flume near.... 343 Work, division of...... 14 Medley Lakes Outlet near..,...... 344. scope of...... 1 Valley Springs, Calif., Cosgrove Creek near...... 257 Yankee Hill, Calif., Concow Creek near. 310 Van Duzen River at Bridgevllle, Calif. 379 Spring Valley ditch near...... 811 Ventura, Calif., Coyote Creek near..-.. 126 West Branch FeatherBiver near...... 309 Ventura River near...... 124 Ydalpom, Calif., Pit River near...... 283 Ventura River near Ventura, Calif..,.. 124 Yolo, Ca^if., Cache Creek at...... 389 Ventura River Baain, Calif., gaglng- Yolo bypass near Woodland, Calif...... 356-357 atatlon records in...... 123-126 Yosealte, Calif., Merced River near: ..222,223 Vermilion Valley, Calif., Bear Creek Tenaya Creek near...... 228 near...... 206 Ysidora, Calif., O'Neill ditch near.... 34 Mono Creek near...... 207 Santa Margarlta River at...... 32 Vemalls, Calif., San Joaquin River Yuba River at Baryavllle, Calif...... 320 near...... 201 at Narrows Dam, Calif...... 319 Verona, Calif., Sacramento River at... 279 Kiddle Fork, above Oregon Creek, Villa Park, Calif., Santiago Creek Calif...... 318 near...... 76 at Milton, Calif...... 317 Vlna, Calif., Deer Creek near...... 294 North Fork, at Colgate diversion dam, Calif...... 325-327 ffard tunnel at Intake, Calif...... 204 below Goodyears Bar, Oallf...... 324 at outlet, Calif...... 205 near Sierra City, Calif...... 323 Warm Creek near Colfcon, Calif,..,...., 53-54 South Fork, at Jones Bar, Calif...... 328 o