Surface Water Supply of the United States, 1966-70
Part 11. Pacific Slope Basins in California
Volume 1. Basins From Tijuana River to Santa Maria River
GEOLOGICAL SURVEY WATER-SUPPLY PAPER 2128 Prepared in cooperation with the State of California and with other agencies
UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1976 UNITED STATES DEPARTMENT OF THE INTERIOR
THOMAS S. KLEPPE, Secretary
GEOLOGICAL SURVEY
V. E. McKelvey, Director
Library of Congress catalog-card No. GS 76-608285
For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 Stock Number 024-001-02773-9 PREFACE
This report was prepared by the U.S. Geological Survey in cooperation with the State of California and other agencies, by personnel of the Water Resources Division, J. S. Cragwall, Jr., chief hydrologist, G. W. Whetstone, assistant chief for Scientific Publications and Data Management, under the general direction of G. A. Billingsley, chief, Reports Section, and B. A. Anderson, chief, Data Reports Unit.
The data were collected and computed under supervision of L. R. Peterson, district chief, Water Resources Division, Menlo Park, Calif.
Ill
Page Preface...... Ill List of gaging stations, in downstream order, for which records are published...... VI Scope of work...... 1 Cooperation...... 1 Division of work...... 2 Definition of terms and abbreviations ...... 2 Downstream order and station number...... 3 Explanation of data...... 3 Accuracy of field data "and computed results...... 7 Publications...... '...... 7 Other data available...... 11 Records of discharge collected by agencies other than the Geological Survey...... 12 Gaging-station r cords ...... "...... 13 Discharge at par ial-record stations ...... 537 Crest-stage pa tial-record stations...... 537 Santa Ana Rive seepage investigations...... 541 Santa Ana Rive absorption studies ...... 543 Index...... 549
ILLUSTRATIONS Page Figure 1. Map of the United States showing area covered by the volumes in the series on surface-water supply...... 8 Figure 2. Schematic diagram showing diversions and storage in Santa Ana River basin...... 129 Figure 3. Schematic diagram showing diversions and storage in San Gabriel and Los Angeles River basins ...... RAGING STATIONS, IN DOWNSTREAM ORDER, FOR WHICH RECORDS ARE PUBLISHED
PACIFIC SLOPfc BASINS IN CALIFORNIA TIJUANA RIVER BASIN Page Cottonwood Creek (head of Tijuana River) at Horena Dam, Calif...... 13 Wilson Creek: Wilson Creek tributary near Dulzura, Calif...... 14 Cottonwood Creek at Barrett Dam, near Dulzura, Calif...... 14 Potrero Creek: Potrero Creek tributary near Barrett Junction, Calif...... 15 Cottonwood Creek above Tecate Creek, near Dulzura, Calif...... 16 Tecate Creek: Campo Creek near Campo, Calif...... 19 Tijuana River near Dulzura, Calif...... 21 Rio de las Palmas: Tijuana River near Nestor, Calif...... !...... !...... 25 OTAY RIVER BASIN Jamul Creek (head of Otay River) near Jamul, Calif...... 26 SWEETWATER RIVER BASIN Sweetwater River: Japacha Creek near Descanso, Calif...... 29 Sweetwater River near Descanso, Calif...... 31 Sweetwater River at Loveland Dam, near Alpine, Calif...... 36 Sweetwater River at Sweetwater Dam, Calif...... 37- SAN DIEGO RIVER BASIN San Diego River: Boulder Creek at Cuyamaca Reservoir, near Julian, Calif...... 38 San Diego River at El Capitan Dam, Calif...... '..... 39 San Diego River near Santee, Calif...... 40 LOS PENASQUITOS CREEK BASIN Los Penasquitos Creek near Poway, Calif...... 43 SAN DIEGUITO RIVER BASIN Santa Ysabel Creek (head o f San Dieguito River) at Sutherland Dam, Calif...... 46 Santa Ysabel Creek near Ramona, Calif...... 47 Santa Ysabel Creek near San Pasqual, Calif...... 50 Guejito Creek near San Pasqual, Calif...... 53 Santa Maria Creek near Ramona, Calif,...... 56 San Dieguito River near San Pasqual, Calif...... 59 San Dieguito River at Lake Hodges, Calif...... 60 SAN LUIS REY RIVER BASIN San Luis Rey River: Agua Caliente Creek near Warner Springs, Calif...... 61 West Fork San Luis Rey River near Warner Springs, Calif...... 64 San Luis Rey River at Lake Henshaw, near Mesa Grande, Calif...... 67 Pauma Creek near Pauma Valley, Calif...... 68 San Luis Rey River tributary near Pala, Calif...... 74 San Luis Rey River at Monserate Narrows, near Pala, Calif...... 75 San Luis Rey River near Bonsall, Calif...... 78 San Lui's Rey River at Oceanside, Calif...... 81 SANTA MARGARITA RIVER BASIN Temecula Creek (head of Santa Margarita River) near Aguanga, Calif...... 84 Temecula Creek at Vail Dam, Calif...... 87 Hurrieta Creek at Temecula, Calif...... 88 Santa Margarita River near Temecula, Calif...... 91 Santa Margarita River near Fallbrook, Calif...... 94 De Luz Creek near Fallbrook, Calif...... 97 Santa Margarita River at Ysidora, Calif...... 99 LAS FLORES CREEK BASIN Las Flores Creek near Oceanside, Calif...... 102 SAN ONOFRE CREEK BASIN San Onofre Creek near San Onofre, Calif...... 104 San Onofre Creek at San Onofre , Calif...... 106 SAN MATED CREEK BASIN San Mateo Creek near San Clemente, Calif...... 107 Cristianitos Creek near San Clemente, Calif...... 109 San Mateo Creek at San Onofre, Calif...... Ill SAN JUAN CREEK BASIN San Juan Creek near San Juan Capistrano, Calif...... 113 Arroyo Trabuco near San Juan Capistrano, Calif...... 119 Oso Creek at Crown Valley Parkway, near Mission Viejo, Calif...... 122 ALISO CREEK BASIN Aliso Creek at El Toro, Calif...... 123 PETERS CANYON WASH BASIN Peters Canyon Wash: San Diego Creek near Irvine, Calif...... 126 SANTA ANA RIVER BASIN Santa Ana River: Bear Creek: ake near Big Bear Lake, Calif...... 130 ver near Mentone, Calif...... 131 Santa Ana River spreading diversion near Mentone, Calif...... 137 Mill Cree near Yucaipa, Calif...... :...... 140 Plunge Cr ek near East Highlands, Calif...... 146 City Cree near Highland, Calif...... 152 Santa Ana R ver at Waterman Avenue, at San Bernardino, Calif...... 158 San Timot o Creek: Little an Gorgonio Creek near Beaumont, Calif...... 161 San Timot o Creek near Redlands, Calif...... 164 San Timot o Creek near Loma Linda, Calif...... 165 Warm Cree : East Tw n Creek near Arrowhead Springs, Calif...... 167 Waterman Canyon Creek near Arrowhead Springs, Calif...... 170 Warm Creek floodway at San Bernardino, Calif...... 173 Santa Ana River at E Street, near San Bernardino, Calif...... 176 Warm Creek near San Bernardino, Calif...... 179 Meeks and Daley Canal near Colton, Calif...... 180 Lytle Creek near Fontana Calif ...... 183 Cajon Creek near Keenbrook, Calif.!....!...... 189 Lone Pine Creek near Keenbrook, Calif...... 192 Devil Canyon Creek near San Bernardino, Calif...... 195 Lytle Creek at Colton, Calif...... 198 Santa Ana River at Colton, Calif...... 201 Santa Ana River at MWD Crossing, near Arlington, Calif...... 202 Riverside Water Quality Control Plant at Riverside Narrows, near Arlington, Calif...... 203 GAGING STATIONS, IN DOWNSTREAM ORDER, FOR WHICH RECORDS ARE PUBLISHED VII
PACIFIC SLOPE BASINS IN CALIFORNIA--Continued SANTA ANA RIVER BASIN--Continued Page Santa Ana River at Riverside Narrows, near Arlington, Calif...... 206 Day Creek near Etiwanda, Calif...... 209 Santa Ana River at Auburndale Bridge, near Corona, Calif...... 215 South Fork San Jacinto River: Lake Hemet near Idyllwild, Calif...... 217 South Fork San Jacinto River: South Fork San Jacinto River tributary near Valle Vista, Calif...... 218 San Jacinto River near San Jacinto, Calif...... 219 Bautista Creek near Hemet, Calif...... 225 Bautista Creek near Valle Vista, Calif...... 226 Perris Valley Storm Drain at Nuevo Road, near Perris, Calif...... 227 San Jacinto River near Elsinore, Calif...... 228 Elsinore Lake at Elsinore, Calif...... 231 Temescal Creek near Corona, Calif...... 231 Temescal Creek at Corona, Calif...... 234 Chino Creek: San Antonio Creek near Claremont, Calif...... 236 San Antonio Creek below San Antonio Dam, Calif...... 242 Chino Creek at Schaefer Avenue, near Chino, Calif...... 245 Chino Creek near Chino, Calif...... 246 Cucamonga Creek near Upland, Calif...... 248 Cucamonga Creek near Mira Loma, Calif...... 251 Santa Ana River below Prado Dam, Calif...... 253 Carbon Creek below Carbon Canyon Dam, Calif...... 256 Santiago Creek at Modjeska, Calif...... 257 Santiago Creek at Santiago Dam, near Villa Park, Calif...... 260 Santiago Creek at Santa Ana, Calif...... 261 Santa Ana River at Santa Ana, Calif...... 263 SAN GABRIEL RIVER BASIN East Fork San Gabriel River near Camp Bonita, Calif...... 267 West Fork San Gabriel River at Camp Rincon, Calif...... 270 San Gabriel River near Azusa, Calif...... 273 Fish Creek near Duarte, Calif...... 274 San Gabriel River below Santa Fe Dam, near Baldwin Park, Calif...... 277 Walnut Creek: Dalton Creek: San Dimas Creek below San Dimas Dam, Calif...... 280 Little Dalton Creek near Glendora, Calif...... 283 San Jose Creek near El Monte, Calif...... 286 San Gabriel River above Whittier Narrows Dam, Calif...... 289 Rio Hondo flood-flow channel at Whittier Narrows Dam, Calif...... 292 San Gabriel River at Pico, Calif...... 295 San Gabriel River at Spring Street, near Los Alamitos, Calif...... 298 Coyote Creek: Brea Creek below Brea Dam, near Fullerton, Calif...... 301 Brea Creek at Fullerton, Calif...... 304 Fullerton Creek below Fullerton Dam, near Brea, Calif...... 307 Fullerton Creek at Richman Avenue, at Fullerton, Calif...... 310 Coyote Creek at Los Alamitos, Calif...... 313 LOS ANGELES RIVER BASIN Los Angeles River at Sepulveda Dam, Calif...... 316 Pacoima Creek near San Fernando, Calif...... 319 Tujunga Creek: Mill Creek: North Fork Mill Creek near La Canada, Calif...... 322 Tujunga Creek below Mill Creek, near Colby Ranch, Calif...... 325 Tujunga Creek near Sunland, Calif...... 328 Little Tujunga Creek near San Fernando, Calif...... 331 Tujunga Creek below Hansen Dam, Calif...... 334 Los Angeles River at Los Angeles, Calif...... 337 Arroyo Seco near Pasadena, Calif...... 340 Los Angeles River near Downey, Calif...... 343 Rio Hondo: Santa Anita Creek near Sierra Madre, Calif...... 346 Eaton Creek near Pasadena, Calif...... 349 Rio Hondo above Whittier Narrows Dam, Calif...... 350 Rio Hondo near Montebello, Calif...... 353 Mission Creek near Montebello, Calif...... 356 Mission Creek below Whittier Narrows Dam, Calif...... 359 Rio Hondo below Nhittier Narrows Dam, Calif...... 362 Rio Hondo near Downey, Calif...... 365 Los Angeles River at Long Beach, Calif...... 368 BALLONA CREEK BASIN Ballona Creek near Culver City, Calif...... 371 TOPANGA CREEK BASIN Topanga Creek near Topanga Beach, Calif...... 374 MALIBU CREEK BASIN Malibu Creek at Crater Camp, near Calabasas , Calif...... 377 CALLEGUAS CREEK BASIN Calleguas Creek: Arroyo Simi near Simi, Calif...... 380 Calleguas Creek at Camarillo State Hospital, Calif...... 382 SANTA CLARA RIVER BASIN Santa Clara River at Los Angeles-Ventura County line, Calif...... 384 Piru Creek above Lake Piru, Calif...... 387 Lake Piru near Piru, Calif...... 390 Piru Creek near Piru, Calif...... 391 Hopper Creek near Piru, Calif...... 394 Sespe Creek near Wheeler Springs, Calif...... 397 Sespe Creek near Fillmore, Calif...... 400 Santa Paula Creek near Santa Paula, Calif...... 406 Saticoy diversion near Saticoy, Calif...... 409 Santa Clara River at Montalvo, Calif...... '...... 410 VENTURA RIVER BASIN Matilija Creek [head of Ventura River) above reservoir, near Matilija Hot Springs, Calif.... 414 Matilija Creek at Matilija Hot Springs, Calif...... 417 North Fork Matilija Creek at Matilija Hot Springs, Calif...... 420 Ventura River near Meiners Oaks.Calif...... 423 San Antonio Creek at Casitas Springs, Calif...... 426 Coyote Creek near Oak View, Calif...... 429 Santa Ana Creek near Oak View, Calif...... 432 Coyote Creek near Ventura, Calif...... 435 Ventura River near Ventura, Calif...... '...... 436 GAGING STATIONS, IN DOWNSTREAM ORDER, FOR WHICH RECORDS ARE PUBLISHED
PACIFIC SLOPE BASINS IN CALIFORNIA--Continued CARPINTERIA CREEK BASINPage Carpinteria Creek near Carpinteria, Calif...... 442 ATASCADERO CREEK BASIN Atascadero Creek near Goleta, Calif...... 445 SAN JOSE CREEK BASIN San Jose Creek near Goleta, Calif...... 448 GAVIOTA CREEK BASIN Gaviota Creek near Gaviota, Calif...... 451 JALAMA CREEK BASIN Jalama Creek near Lompoc, Calif...... '..... 454 SANTA YNEZ RIVER BASIN Santa Ynez River a Jameson Lake, near Montecito, Calif...... 457 Santa Ynez River a ove Gibraltar Dam, near Santa Barbara, Calif...... 459 Santa Ynez River b low Gibraltar Dam, near Santa Barbara, Calif...... 460 Santa Ynez River b low Los Laureles Canyon, near Santa Ynez, Calif...... 463 Santa Cruz Creek near Santa Ynez, Calif...... 466 Lake Cachuma near anta Ynez, Calif...... 469 Santa Ynez River n ar Santa Ynez, Calif...... 471 Santa Agueda Cre k near Santa Ynez, Calif...... 474 Alisal Creek nea Solvang, Calif...... 477 Santa Ynez River a Solvang, Calif...... 480 Zaca Creek near uellton, Calif...... 483 Santa Ynez River n ar Buellton, Calif...... 485 Santa Ynez River a Cooper's Reef, near Lompoc, Calif...... 488 Salsipuedes Cree near Lompoc, Calif...... 491 Santa Ynez River a narrows, near Lompoc, Calif...... 494 Santa Ynez River a 13th Street, near Lompoc, Calif...... 497 Santa Ynez River a Pine Canyon, near Lompoc, Calif...... 500 SAN ANTONIO CREEK BASIN San Antonio Creek near Casmalia, Calif...... 503 San Antonio Creek tributary near Casmalia, Calif...... 506 SANTA MARIA RIVER BASIN Cuyama River (head of Santa Maria River): Aliso Canyon Creek near New Cuyama, Calif...... 507 Cuyama River below Buckhorn Canyon, near Santa Maria, Calif...... 508 Alamo Creek near Nlpomo, Calif...... 511 Huasna River near Arroyo Grande, Calif...... 514 Cuyama River below Twitchell Dam, Calif...... 517 Sisquoc River near Sisquoc, Calif...... 520 La Brea Creek near Sisquoc, Calif...... 523 Foxen Creek near Sisquoc, Calif...... 526 Tepusquet Creek near Sisquoc, Calif...... 529 Sisquoc River nt..r Garey, Calif...... 532 Santa Maria River at Guadalupe, Calif...... 535 PACIFIC SLOPE BASINS IN CALIFORNIA FROM TIJUANA RIVER TO SANTA MARIA RIVER
SCOPE OF WORK
This report is one of a series of 37 reports presenting records of stage and discharge of streams, and of stage and contents of lakes and reservoirs in the United States during the 1966-70 water years; it contains the records for gaging stations and partial-record stations in the Pacific slope basins in California from Tijuana River to Santa Maria River.
Since 1888, when the U.S. Geological Survey first studied streamflow in relation to problems of irrigation, similar records have been obtained at more than 19,500 gaging stations in the 50 States. On September 30, 1970, the Geological Survey and cooperating organizations were maintaining 10,000 gaging stations. Partial-record stations for low flow or for floodflow have been operated at many other points.
COOPERATION
Many State, municipal, and private organizations have cooperated with the Geological Survey in this work by either furnishing or helping to collect data. Organizations that assisted in the collection of data through cooperative agreements with the Survey in California are as follows:
California Department of Water Resources; Monticito County Water District; Orange County Flood Control District; Riverside County Flood Control and Water Conservation District; San Bernardino Valley Municipal Water District; San Bernardino Valley Conservation District; San Diego County, Department of Sanitation and Flood Control; City of San Diego, Utilities Department; Santa Barbara City Water Department; Santa Barbara County Water Agency; Santa Maria Valley Water Conservation District; Santa Ynez River Conservation District; Ventura County Department of Public Works; and Ventura County Municipal Water District.
Assistance in the form of funds and services was given by the Corps of Engineers, U.S. Army, in collecting records published herein; by the U.S. Navy; and by the Bureau of Reclamation, U.S. Department of the Interior.
The following organizations aided in collecting records:
Bear Valley Mutual Water Company; Fontana Union Water Company; Helix Irrigation District; Irvine Ranch; Los Angeles County Flood Control District; Metropolitan Water District of California; Pacific Gas and Electric Company; Rancho California; Serrano and Carpenter Irrigation District; Southern California Edison Company; United Water Conservation District; Ventura County Flood Control District; and Vista Irrigation District.
Organizations that supplied data are acknowledged in station descriptions. 2 SURFACE WATER SUPPLY', 1966-70, PART II, VOLUME 1
DIVISION OF WORK
The stream-gaging work was done by the Water Resources Division of the Geological Survey under the direction of personnel cited in the preface. The data for stations in California were collected and prepared for publication in the district office located at 855 Oak Grove Avenue, Menlo Park, California 94025.
DEFINITION OF TERMS AND ABBREVIATIONS
Terms related to streamflow and other hydrologic data, as used in this report, are defined as follows:
ACRE-FOOT (AC-FT. ACRE-FT) is the quantity of water required to cover an acre to the depth of 1 foot and is equivalent to 43,560 cubic feet or about 326,000 gallons.
CFS-DAY is the volume of water represented by a flow of 1 cubic foot per second for 24 hours. It is equivalent to 86,400 cubic feet, approximately 1.9835 acre-feet, or about 646,000 gallons, and represents a runoff of approximately 0.0372 inch from 1 square mile.
CONTENTS is the volume of water in a reservoir or lake. Unless otherwise indicated, volume is computed on the basis of a level pool and does not include bank storage.
CONTROL designates a feature downstream from the gage that determines the stage-discharge relation at the gage. This feature may be a natural constriction of the channel, an artificial structure, or a uniform cross section over a long reach of the channel.
CUBIC FEET PER SECOND PER SQUARE MILE (CFSM) is the average number of cubic feet of water flowing per second from each square mile of area drained, assuming that the runoff is distributed uniformly in time and area.
CUBIC FOOT PER SECOND (CFS) is the rate of discharge representing a volume of 1 cubic foot passing a given point during 1 second and is equivalent to approximately 7.48 gallons per second or 448.8 gallons per minute.
DISCHARGE is the volume of water in a stream which passes a given point in a unit of time.
DRAINAGE AREA of a stream above a specified location is that area, measured in a horizontal plane, enclosed by a topographic divide from which direct surface runoff from precipitation normally drains by gravity into the river above the specified point. Figures of drainage area given herein include all closed basins, or noncontributing area, within the area unless otherwise noted.
GAGE HEIGHT is the surface-water elevation referred to some arbitrary gage datum. Gage height is often used interchangeably with the more general term "stage," although gage height is more appropriate when used with a reading on a gage.
GAGING STATION is a particular site on a stream, canal, lake, or reservoir where systematic observations of gage height or discharge are obtained. When used in connection with a discharge record, the term is applied herein only to those gaging stations where a continuous record of discharge is computed.
HYDROLOGIC BENCH-MARK STATION is one that provides hydrologic data for ' a basin in which the hydrologic regimes will likely be governed solely by natural EXPLANATION OF DATA 3
conditions. Data collected at a bench-mark station may be used to separate effects of natural from manmade changes in other basins which have been developed and in which the physiography, climate, and geology are similar to those in the undeveloped bench-mark basin.
INTERNATIONAL HYDROLOG1CAL DECADE (IHD) RIVER STATIONS provide a general index of runoff and materials in the water balance (discharge of water, and dissolved and transported solids) of the world. In the United States, IHD Stations provide indices of runoff and of the general distribution of water in the principal river basins of the conterminous United States and Alaska.
PARTIAL-RECORD STATION is a particular site where limited streamflow data are collected systematically over a period of years for use in hydrologic analyses.
RUNOFF IN INCHES (IN.) is the depth to which the drainage area would be covered if all the runoff for a given time period were uniformly distributed on it.
STAGE-DISCHARGE RELATION is the relation between gage height and the volume of water per unit of time flowing in a channel.
WSP is used as an abbreviation for "Water-Supply Paper" in reference to previously published reports.
DOWNSTREAM ORDER AND STATION NUMBER
Beginning with the series of reports for the water year ending September 30, 1951, the order of listing gaging-station records is in a downstream direction along the main stream. All stations on a tributary entering upstream from a main-stream station are listed before that station. A station on a tributary that enters between two main-stream stations is listed between them. A similar order is followed in listing stations on first rank, second rank, and other ranks of tributaries. The rank of any tributary on which a gaging station is situated with respect to the stream to which it is immediately tributary is indicated by an indention in a list of gaging stations. Each indention represents one rank. This downstream order and system of indention show which gaging stations are on tributaries between any two stations and the rank of the tributary on which each gaging station is situated.
The order of listing used before the publication of the 1951 report listed first all stations on the main stem from headwaters toward mouth, then all stations on the upper most tributary to the main stem from the tributary's source to mouth, and then all stations from source to mouth of the uppermost tributary to the tributary.
As an added means of identification, each gaging station and partial-record station has been assigned a station number. These are in the same downstream order used in this report. In assigning station numbers, no distinction is made between partial-record stations and gaging stations; therefore, the station number for a partial-record station indicates downstream-order position in a list made up of both types of stations. Gaps are left in the series of numbers to allow for new stations that may be established; hence, the numbers are not consecutive. The complete 8-digit number for each station such as 11098500, which appears just to the left of the station name, includes the 2-digit part number "11" plus the 6-digit downstream order number "098500". The part numbers refer to the areas whose boundaries are outlined in Figure 1.
EXPLANATION OF DATA
The base data collected at gaging stations consist of records of stage and measure ments of discharge of streams or canals, and stage, surface area, and contents of 4 SURFACE WATER SUPPLY, 1966-70, PART 11, VOLUME 1 lakes or reservoirs. In addition, observations of factors affecting the stage-discharge relation or the stage-capacity relation, weather records, and other information are used to supplement base data in determining the daily flow or volume of water in storage. Records of stage are obtained from direct readings on a nonrecording gage or from a water-stage recorder that gives either a continuous graph of the fluctuations or a tape punched at 15-, 30-, or 60-minute intervals. Measurements of discharge are made with a current meter, using the general methods adopted by the Geological Survey on the basis of experience in stream gaging since 1888. These methods are described in standard textbooks, in Water-Supply Paper 888, and in U.S. Geological Survey Techniques of Water Resources Investigations, book 3, chapter A6. Surface areas of lakes or reservoirs are determined from instrument surveys using standard methods. The configuration of the reservoir bottom is determined by sounding at many points.
For stream-gaging stations, rating tables giving the discharge-for any stage are prepared from stage-discharge relation curves. If extensions to the rating curves are necessary to express discharge greater than measured, they are made on the basis of indirect measurements of peak discharge (such as slope-area or contracted- opening measurements, computation of flow over dams or weirs), velocity-area studies, and logarithmic plotting. The daily mean discharge is computed from gage heights and rating tables, then the monthly and yearly mean discharge are computed from the daily figures. If the stage-discharge relation is subject to change because of frequent or continual change in the physical features that form the control, the daily mean discharge is computed by the shifting-control method, in which Correction factors based on individual discharge measurements and notes by engineers and observers are used in applying the gage heights to the rating tables. If the stage-discharge relation for a station is temporarily changed by the presence of aquatic growth or debris on the control, the daily mean discharge is computed by what is basically the shifting-control method."
At some gaging stations the stage-discharge relation is affected by the backwater from reservoirs, tributary streams, or other sources. This necessitates the use of the slope method in which the slope or fall in a reach of the stream is a factor in computing dis charge. The slope or fall is obtained by means of an auxiliary gage set at some distance from the base gage. At some stations the stage-discharge relation is affected by changing stage; at these stations the rate of change in. stage is used as a factor in computing discharge.
At some stream gaging stations the stage-discharge relation is affected by ice in the winter, and it becomes impossible to compute the discharge in the usual manner. Discharge for periods of ice effect is computed on the basis of gage-height record and occasional winter discharge measurements, consideration being given to the available information on temperature and precipitation, notes by gage observers and hydrologists, and comparable records of discharge for other stations in the same or nearby basins.
For a lake or reservoir station, capacity tables giving the contents for any stage are prepared from stage-area relation curves defined by surveys. The application of the stage to the capacity table gives the contents, from which the daily, monthly, or yearly change in contents is computed.
If the stage-capacity curve is subject to changes because of deposition of sediment in the reservoir, periodic resurveys of the reservoir are necessary to define new stage-capacity curves. During the period between reservoir surveys the computed contents may be increasingly in error due to the gradual accumulation of sediment.
For some gaging stations there are periods when no gage-height record is obtained or the recorded gage height is so faulty that it cannot be used to compute daily discharge EXPLANATION OF DATA 5 or contefnts. This happens when the recorder stops or otherwise fails to operate pr<§perly, intakes are plugged, the float is frozen in the well, or for various other reasons. For such periods the daily discharges are estimated on the basis of recorded range in stage, adjoining good record, discharge measurements, weather records, and comparison with other station records from the same or nearby basins. Likewise daily contents may be estimated on the basis of operator's log, adjoining good record, inflow-outflow studies, and other information.
The data in this report generally comprise a description of the station and tabula tions of daily and monthly figures. For gaging stations on streams or canals a table showing the daily discharge and monthly and yearly discharge is given, gor gaging stations on lakes and reservoirs a monthly summary table of stage and contents or a table showing the daily contents is given. Tables of daily mean gage heights are included for some streamflow stations and for some reservoir stations. Records are published for the water year, which begins on October 1 and ends on September 30.
The description of the gaging stations gives the location, drainage area, period of record, type and history of gages, average discharge, extremes of discharge or contents, general remarks, and notations of revisions of previously published records. The location of the gaging station and the drainage area are obtained from the most accurate maps available. River mileage, given under "LOCATION" for some stations, is that determined and used by the Corps of Engineers or other agencies. Periods for which there are published records for the present station or for stations generally equivalent to the present one are given under "PERIOD OF RECORD." The type of gage currently in use, the datum of the present gage above mean sea level, and a condensed history of the types, locations, and datums of previous gages used during the period of record are given under "GAGE." In references to datum of gage, the phrase "mean sea level" denotes "Sea Level Datum of 1929" as used by the Topographic Division of the Geological-Survey unless otherwise qualified. The average discharge for the number of years indicated is given, under "AVERAGE DISCHARGE"; it is not given for stations having fewer than 5 complete years of record or for stations where changes in water development during the period of record cause the figure to have little significance. In addition, the median of yearly mean discharges is given for stream-gaging stations having 10 or more complete years of record if the median differs from the average by more than 10 percent. Under "EXTREMES" are given, usually in tabular form, the maximum instantaneous discharge (or contents) and gage height for the current water years (1966-70); the minimum instantaneous discharge if there is little or no regulation (or minimum contents); the minimum daily discharge if there is, extensive regulation (also the minimum instantaneous discharge if it is abnormally low); and the minimum gage height if it is also abnormally low. For stations for which peak discharges are published, all independent peaks above the selected base and the time of occurrence and corresponding gage heights are published in the first table under "EXTREMES." The base discharge, which is given in parentheses in the table heading, is selected so that an average of about three peaks a year will be presented. Peak discharges are not published for any canals, ditches, drains, or for any stream for which the peaks are subject to substantial control by man. Time of day is expressed in 24-hour local standard time; for example, 12:30 a.m. is 0030, 1:30 p.m. is 1330. The minimums for these stations are published in a separate table following the table of peaks. In the paragraph following the current data, the data given are for the periods listed in the "PERIOD OF RECORD" paragraph. Reliable information concerning major floods that have occurred outside the period of record is given in the last paragraph under "EXTREMES." Unless otherwise qualified, the maximum discharge (or contents) corresponds to the crest stage obtained by use of a water-stage recorder (graphic or digital), a crest-stage gage, or a non- recording gage read at the time of the crest. If the maximum gage height did not occur at the same time as the maximum discharge (or contents), it is given separately. Information pertaining to the accuracy of the discharge records, to conditions which affect the natural flow at the gaging station, and to availability of Water-Quality records, is given under "REMARKS." For reservoir stations information on the dam forming the reservoir, the capacity, outlet works and spillway, and purpose and use of the reservoir is given under "REMARKS." 6 SURFACE WATER SUPPLY, 1966-70, PART 11, VOLUME 1
Previously published records of some stations have been found to be in error on the basis of data or information later obtained. Revisions of such records are usually published along with the current records in one of the annual or compilation reports. In order to make it easier to find such revised records, a paragraph headed "REVISIONS (WATER YEARS)" has been added to the description of all stations for which revised records have been published. Listed therein are all the reports in which revisions have been published, each followed by the water years for which figures are revised in that report. In listing the water years only one number is given; for instance, 1965 stands for the water year October 1, 1964, to September 30, 1965. If no daily, monthly, or annual figures of discharge are affected by the revision, the fact is brought out by notations after the year dates as follows: "(M)" means that only the instantaneous maxi mum discharge was revised; "(m)" that only the instantaneous minimum was revised; and "(P)" that only peak discharges were revised. If the drainage area has been revised, the report in which the revised figure was first published is given. It should be noted that for all stations for which cubic feet per second per square mile and runoff in inches are published, a revision of the drainage area necessitates corresponding revision of all figures based on the drainage area. Revised figures of cubic feet per second per square mile and runoff in inches resulting from a revision of the drainage area only are usually not published in the annual series of reports.
The daily table for stream-gaging stations gives the mean discharge for each day and is followed by monthly and yearly summaries. In the monthly summary below the daily table, the line headed "TOTAL" gives the sum of the daily figures. The line headed "MEAN" gives the average flow in cubic feet per second during the month. The lines headed "MAX" and "MIN" give the maximum and minimum daily discharges, respectively, for the month. Discharge for the mo'nth also may be expressed in cubic feet per second per square mile (line headed "CFSM"), or in inches (line headed "IN"), or in acre-feet (line headed "AC-FT"). Figures for cubic feet per second per square mile and runoff in inches are omitted if there is extensive regulation or diversion, if the drainage area includes large noncontributing areas, or if the average annual rainfall over the drainage basin is usually less than 20 inches.
In the yearly summary below the monthly summary, the figures following "MAX" are the maximum daily discharges for the calendar and water years; likewise, those following "MIN" are the minimum daily discharges. Footnotes to the table of daily discharge are introduced by the word "NOTE." Foot notes are used to indicate periods for which the discharge is computed or estimated by special methods because of no gage-height record, backwater from various sources, or other unusual conditions. Periods of no gage-height record are indicated if the period is continuous for a month or more or includes the maximum discharge for the year. Periods of backwater from an unusual source, of indefinite stage-discharge relation, or of any other unusual condition at the gage site are indicated only if they are a month or more in length and the accuracy of the records is affected. Days on which the stage- discharge relation is affected by ice are not indicated. The methods used in computing discharge for various unusual conditions have been explained in preceding paragraphs.
For most gaging stations on lakes and reservoirs the data presented comprise a description of the station and a monthly summary table of stage and contents. For some reservoirs a table showing daily contents or stage is given. A skeleton table of capacity at given stages is published for all reservoirs for which records are published on a daily basis, but is not published for reservoirs for which only monthly data are given.
Data collected at partial-record stations are given at the end of this report. Data for partial-record stations are presented in two tables. Thefirst is a table of discharge measurements at low-flow partial-record stations, and the second is a table of annual maximum stage and discharge at crest-stage stations. Occasionally, a series of discharge measurements are made within a short time period to investigate the seepage gains or losses along a reach of a stream or to determine the low-flow characteristics of an area. Such measurements are given in special tables following the tables of partial- record stations. PUBLICATIONS 7
ACCURACY OF FIELD DATA AND COMPUTED RESULTS
The accuracy of streamflow data depends primarily on (1) the stability 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 discharge, and interpretations of records.
The station description under "REMARKS" states the degree of accuracy of the records. "Excellent'1 means that about 95 percent of the daily discharges are within 5 percent; "good", within 10 percent; and "fair" within 15 percent. "Poor" means that daily discharges have less than "fair" accuracy.
Figures of daily mean discharge in this report are shown to the nearest hundredth of a cubic foot per second for discharges of less than 1 cfs; to tenths between 1.0 and 10 cfs; to whole numbers between 10 and 1,000 cfs; and to 3 significant figures above 1,000 cfs. The number of significant figures used is based solely on the magnitude of the figure. The same rounding rules apply to discharge figures listed for partial- record stations.
Discharge at many stations, as indicated by the monthly mean, may not reflect natural runoff due to the effects of diversion, consumption, regulation by storage, increase or decrease in evaporation due to artificial causes, or to other factors. For such stations, figures of cubic feet per second per square mile and of runoff in inches are not published unless satisfactory adjustments can be made for diversions, 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 reser voir contents, unless it is so stated. Even at those stations where adjustments are made, large errors in computed runoff may occur if adjustments or losses are large in comparison with the observed discharge.
PUBLICATIONS
Through September 30, 1960, the records of discharge and stage of streams and contents and stage of lakes and reservoirs were published in an annual series of U.S. Geological Survey water-supply papers entitled "Surface Water Supply of the United States." Prior to 1951, there were 14 volumes in the series; one for each of the 14 parts whose boundaries coincided with certain natural drainage lines within the con terminous United States. From 1951 to 1960, there were 20 volumes in the series, including one each for the States of Alaska (Part 15) and Hawaii (Part 16).
This report is one of the second series of water-supply papers to be published on a 5-year basis. The first series covered the 5-year period October 1, 1960, to September 30, 1965. This series covers the period October 1, 1965, to September 30, 1970. To meet interim requirements, streamflow and related data have been released by the Geological Survey in annual reports, beginning with the 1961 water year, by State. These reports are entitled, "Water Resources Data for (state), Part 1. Surface Water Records." Distribution of these reports is limited and primarily for local needs. Any revision or corrections found necessary to the records published in these annual State reports have been made and published herein without reference.
These two series of 5-year water supply papers consist of 37 volumes each. The boundaries of the various parts and volumes within the parts are indicated in the fol lowing list and on the map in Figure 1.
Part 1. North Atlantic slope basins, in three volumes: Vol. 1: Basins from Maine to Connecticut Vol. 2: Basins from New York to Delaware Vol. 3: Basins from Maryland to York River Figure 1. Map of the United States showing area covered by the volumes in the series on surface-water supply. The area covered by this report is shaded. PUBLICATIONS 9
Part 2. South Atlantic slope and eastern Gulf of Mexico basins, in three volumes: Vol. 1: Basins from James River to Savannah River Vol. 2: Basins from Ogeechee River to Carrabelle River Vol. 3: Basins from Apalachicola River to Pearl River Part 3. Ohio River basin, in four volumes: Vol. 1: Ohio River basin above Kanawha River Vol. 2: Ohio River basin from Kanawha River to Louisville, Kentucky Vol. 3: Ohio River basin from Louisville, Kentucky, to Wabash River Vol. 4: Ohio River basin below Wabash River Part 4. St. Lawrence River basin, in two volumes: Vol. 1: Basins of streams tributary to Lakes Superior, Michigan, and Huron Vol. 2: St. Lawrence River basin below Lake Huron Part 5. Hudson Bay and Upper Mississippi River basins, in three volumes: Vol. 1: Hudson Bay basin Vol. 2: Upper Mississippi River basin above Keokuk, Iowa Vol. 3: Upper Mississippi River basin below Keokuk, Iowa Part 6. Missouri River basin, in four volumes: Vol. 1: Missouri River basin above Williston, North Dakota Vol. 2: Missouri River basin from Williston, North Dakota, to Sioux City, Iowa Vol. 3: Missouri River basin from Sioux City, Iowa, to Nebraska City, Nebraska Vol. 4: Missouri River basin below Nebraska City, Nebraska Part 7. Lower Mississippi River basin, in two volumes: . Vol. 1: Lower Mississippi River basin except Arkansas River basin Vol. 2: Arkansas River basin Part 8. Western Gulf of Mexico basins, in two volumes: Vol. 1: Basins from Mermentau River to Colorado River Vol. 2: Basins from Lavaca River to Rio Grande Part 9. Colorado River basin in three volumes: Vol. 1: Colorado River basin above Green River Vol. 2: Colorado River basin from Green River to Compact Point Vol. 3: Lower Colorado River basin Part 10. The Great Basin Part 11. Pacific slope basins in California, in four volumes: Vol. 1: Basins from Tijuana River to Santa Maria River Vol. 2: Basins from Arroyo Grande to Oregon State line except Central Valley Vol. 3: Southern Central Valley basins Vol. 4: Northern Central Valley basins Part 12. Pacific slope basins in Washington, in two volumes: Vol. 1: Pacific slope basins in Washington except Columbia River basin Vol. 2: Upper Columbia River basin Part 13. Snake River basin Part 14. Pacific slope basins in Oregon and Lower Columbia River basin Part 15. Alaska Part 16. Hawaii and other Pacific areas Water-supply papers and other publications of the Geological Survey containing data on the water resources of the United States may be purchased or consulted as follows:
1. Copies may be purchased from the Superintendent of Documents, Government Printing Office, Washington, D. C. 20402, who will, on application, furnish lists giving prices. A list of Geological Survey publications may also be obtained by applying to the Director, Geological Survey, National Center, Reston, Va. 22092.
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 offices of the Water Resources Division of the Geological Survey. Addresses of the offices in the area covered by this report are given on page 2.
Early records of the flow of streams in the United States are published in the reports that follow. In many of these reports records for years earlier than those indicated 10 SURFACE WATER SUPPLY, 1966-70, PART 11, VOLUME 1
have been included for some streams. Most of these reports are out of print, but may be available for consultation in the district offices and in public libraries.
Streamflow data for the years 1884-1901, in reports of the Geological Survey (A - Annual Report; B - Bulletin)
Report Character of data Year
10th A, pt. 2 Descriptive information only llth A, pt. 2 .Monthly discharge and descriptive information ...... 1884-90. 12th A, pt. 2 .... do ...... 1884-91. 13th A, pt. 3 .... do ...... 1884-92. 14th A, pt. 2 Monthly discharge...... 1888-93. B 131 . . . Descriptions, measurements, gage heights, and ratings .... 1893-94. 16th A. pt. 2 Descriptive information only. B 140 . . . Descriptions, measurements, gage heights, ratings and 1895. monthly discharge. WSP 11..' Gage heights...... 1896. 18th A. pt. 4 Descriptions, measurements, ratings, and monthly discharge 1895-96. WSP 15 . . Descriptions, measurements, and gage heights of streams 1897. east of the Mississippi River, and Missouri River and tributaries above Kansas River. WSP 16 . . Descriptions, measurements, and gage heights of streams 1897. west of the Mississippi River, except Missouri River and tributaries above Kansas River. 19th A, pt. 4 Descriptions, measurements, ratings and monthly discharge 1897. WSP 27 . . Measurements, ratings, and gage heights of streams east of 1898. the Mississippi River, and Missouri River and tributaries. WSP 28 . . Measurements, ratings, and gage heights of streams west of 1898. the Mississippi River, except Missouri River and tribu taries. 20th A. pt. 4 Monthly discharge...... 1898. WSP 35 to 39 Descriptions, measurements, gage heights, and ratings .... 1899. 21st A, pt. 4 Monthly discharge...... 1899. WSP 47 to 52 Descriptions, measurements, gage heights, and ratings .... 1900. 22nd A, pt. 4 Monthly discharge...... 1900. WSP 65, 66. Descriptions, measurements, gage heights, and ratings . . . . 1901. WSP 75. .. Monthly discharge...... 1901.
Reports on surface water supply containing records from 1878 to date for drainage basins in this report are listed below. The data for any particular gaging station will, in general, be found in the reports covering the years during which the station was maintained.
Number of water-supply papers containing results of stream measurements in Pacific slope basins in California, Tijuana River to Santa Maria River, 1878-1965
Year WSP Year WSP Year WSP Year WSP Year WSP
1878-1911. .300 1922. . 551 1932. . 736 1942. . 961 1952. . 1245 1912. . . . .331 1923. . 571 1933. . 751 1943. . 981 1953. . 1285 1913. . . . .361 1924. . 591 1934. . 766 1944. .1011 1954. . 1345 1914. . . . .391 1925. . 611 1935. . 791 1945. .1041 1955. . 1395 1915. . . . .411 1926. . 631 1936. . 811 1946. .1061 1956. . 1445 1916. . . . .441 1927. . 651 1937. . 831 1947. .1091 1957. . 1515 1917. . . . .461 1928. . 671 1938. . 861 1948. .1121 1958. . 1565 1918. . . . .481 1929. . 691 1939. . 881 1949. .1151 1959. . 1635 1919-20. . .511 1930. . 706 1940. . 901 1950. .1181 1960. . 1715 1921. . . . .531 1931. . 721 1941. . 931 1951. .1215 1961-65. 1928 OTHER DATA AVAILABLE . 11
Records for the area covered by this report have been compiled through September 1950 and for the period October 1950 to September 1960 and published in Water-Supply Papers 1315-B and 1735. respectively. These reports contain a summary of monthly and annual discharges for all previously published records as well as some records not contained in the annual series of water-supply papers. All records were reexamined and revised where warranted. Estimates of discharge were made to fill short gaps when ever practical.
The reports listed 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 in special reports OB these floods published by the Geological Survey. The more recent of these special reports also contain other pertinent hydrologic information and analyses and compilations of data relating to earlier notable floods. The following list gives the numbers and titles of these reports:
WSP Title
426...... Southern California floods of January 1916. 771...... Floods in the United States, magnitude and frequency. 796-C .... Flood in La Canada Valley, Calif., January 1, 1934. 847...... Maximum discharges at stream-measurement stations through September 1938. 1530 ..... Summary of floods in the United States during 1956. 1650 ..... Floods of December 1955-January 1956 in the far Western States. 1660-B. . . . Summary of floods in the United States during 1958. 1685 ..... Magnitude and frequency of floods in the United States. 1850-E. . . . Summary of floods in the United States during 1965. 1866-B. . . . Floods of December 1964 and January 1965 in the far Western States. 1870-D. . . . Summary of floods in the United States during 1966. 2030 ..... Summary of floods in the United States during 1969.
Reports giving records of chemical quality and temperature of surface water and suspended-sediment loads of streams, in the area covered by this volume for the water years 1941-70 are listed below:
Numbers of water-supply papers containing water-quality records in the Pacific slope basins in California from Tijuana River to Santa Maria River, 1941-70 Year WSP Year WSP Year WSP Year WSP Year WSP
1941. ... 942 1947. . . 1102 1953. . . 1293 1959. , . 1645 1965. . . .1965 1942. ... 950 1948. . . 1133 1954. . . 1353 1960. , . 1745 1966. . . .1995 1943. ... 970 1949. . . 1163 1955. . . 1403 1961. . . 1885 1967. . . .2015 1944. . . 1022 1950. . . 1189 1956. . . 1453 1962. . . 1945 1968. . . .2099 1945. . . 1030 1951. . . 1200 1957. . . 1523 1963. . . 1951 1969. . . . 2149 1946. . . 1050 1952. . , 1253 1958. . . 1574 1964. . . 1958 1970. . . . 2159
OTHER DATA AVAILABLE
Information of a more detailed nature than that published for most of the gaging stations such as discharge measurements, gage-height records, and rating tables is on file in the district offices. Also most gaging-station records are available in computer-usable form and many statistical analyses have been made.
Water-quality records also are collected at or near some gaging stations. Data are obtained on the chemical quality of the stream water, on water temperature, and on 12 SURFACE WATER SUPPLY, 1966-70, PART 11, VOLUME 1 sediment. Under "Remarks" of the station description, reference is made to water* quality records collected on a regular basis for the station. Results of the data collected are published in annual water-supply papers entitled "Quality of Surface Waters of the United States" and in annual reports issued by States beginning with 1964 water year; the state reports are entitled, "Water Resources Data for (state), Part 2. Water Quality Records."
Information on the availability of unpublished data, statistical analyses, or quality of water records, may be obtained from the district offices listed on page 2.
RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY
Records of. discharge not published by the Geological Survey were collected at many additional sites by many other Federal, State, County, City, and local agencies, and by private organizations. A listing of stream-gaging stations and the agencies operat ing them are contained in a publication by the California Department of Water Resources, Bulletin 157, Index of Stream-Gaging Stations in and Adjacent to California, 1970, and in publications by the Office of Water Data Coordination, Water Resources Division, U.S. Geological Survey, National Center, Reston, Virginia22092. Information on records available on specific sites can be obtained upon request. GAGING-STATION RECORDS
TIJUANA RIVER BASIN
11010000 COTTONWOOD CREEK AT MORENA DAM, CALIF. LOCATION.--Lat 32°41'01", long 116°32'45", in NEH sec. 23, T.17 S. , R.4 E. , San Diego County, on Morena Dam outlet tower. DRAINAGE AREA.--114 sq mi. PERIOD OF RECORD. --January 1916, October 1936 to September 1968 (discontinued). GAGE.--Nonrecording gage. Datum of gage is 2,882.4 ft above level. AVERAGE DISCHARGE. --32 years (1936-68), 9.71 cfs (7,030 acre-ft per year); median of yearly mean discharges, 2.1 cfs (1,500 acre-ft per year). REMARKS. --Records of discharge represent all water reaching Morena Reservoir, including precipitation voir surface. Discharge computed on basis of records of storastorage, release (draft), spill, leakage, and evapo ration. Evaporation from reservoir surface computed on basis of evaporation from Colorado land pan using a coefficient of 1.00 excepting the period January 1962 to June 1963, when the mass-transfer method was used. Prior to October 1963 a coefficient of 0.80 was used. Area and capacity tables for reservoir are based on a survey made in 1948. Dam completed and storage began in 1910. Capacity of reservoir at permanent spillway level (gage height, 157.00 ft), 50,210 acre-ft. Dead storage, 654 acre-ft below outlet No. 3 at gage height 70.5 ft. No regulation or diversion above reservoir. Water is released down Cottonwood Creek to Barrett
COOPERATION.--Records computed in cooperation with city of San Diego. REVISIONS (WATER YEARS).--WSP 1091: 1946. WSP 1285: 1948. WSP 1928: Drainage area. MONTHLY DISCHARGE, MATER YEARS OCTOBER 1965 TO SEPTEMBER 1968 MONTH IN RATION PLUS CONTENTS (ACRE- LEAKAGE (ACRE- (ACRE- MORENA RESERVOIR FEET) FEET) FEET) OCTOBER 1965. 62.3 203 -19 +171 +102 CAL YR 1965.
JANUARY 1966. 69.3 572 +96 FEBRUARY..... 70.8 676 +104 MARCH...... 71.6 734 +58 APRIL...... 71.4 719 -15 MAY...... 71.0 690 -29 JUNE...... 70.4 647 -43 JULY...... 69.7 599 AUGUST...... 546 SEPTEMBER.... 507 WTR YR 1966.
OCTOBER.. 67.8 476 NOVEMBER. 67.8 476 DECEMBER. 78.6 1.362 CAL YR 1966.
JANUARY 1967.. ,415 FEBRUARY...... ,426 MARCH...... ,447 APRIL...... ,534 MAY...... ,512 JUNE...... ,447 JULY...... ,394 AUGUST...... ,341 SEPTEMBER..... ,300 WTR YR 1967.
OCTOBER.. ,249 NOVEMBER. ,269 DECEMBER. ,341 CAL YR 1967. JANUARY 1968.. ,352 FEBRUARY...... ,373 MARCH...... ,383 APRIL...... ,373 -10 MAY...... ,321 -52 JUNE...... ,259 -62 JULY...... ,200 -59 AUGUST...... ,142 -58 SEPTEMBER..... ,076 -66 WTR YR 1968. -224 513 25 314 t GAGE HEIGHT AT 0800 HOURS ON LAST DAY OF MONTH. NOTE. FOR MONTHS WHEN INFLOW TO THE RESERVOIR WAS SMALL AND OTHER QUANTITIES WERE LARGE. DISCORDANT FIGURES OF DISCHARGE MAY APPEAR. THIS ARISES PRIMARILY FROM THE DIFFICULTY OF COMPUTING DISCHARGE AS THE RESIDUAL OF SEVERAL LARGER QUANTITIES, WHICH ARE NOT SUSCEPTIBLE TO MEASUREMENT WITH A PRECISION NECESSARY TO PRODUCE A FINAL ANSWER WITHIN DESIRABLE LIMITS OF ACCURACY. TIJUANA RIVER BASIN
11010900 WILSON CREEK TRIBUTARY NEAR DULZURA, CALIF. LOCATION. --Lat 32°43'22", long 116°42 ' 06" , in NEfcSEWJWi sec. 5, T.17 S., R.3 E., San Diego County, on n on Japatul Lyons Valley Road, 6.6 miles northeast of Dulzura. DRAINAGE AREA. --0. 61 sq mi. , ,. v. imn PERIOD OF RECORD. --Annual maximums, water years 1962-67. October 1967 to September 1970. GAGE. --Water-stage recorder and culvert control. Altitude of gage is 2,200 ft (from topographic map). EXTREMES. --Maximums and minimums (discharge in cubic feet per second, gage height in teet) tor tne wate 1966-70 are contained in the following table: Minimum Wtr yr Date Discharge G.H. Date Discharge 1966 Nov. 22 1965 62 10.63 - 1966 98 12.22 - 1968 Dec. 19 1967 4.5 7.73 Mo st of time 1969 Feb. 25 1969 49 10.17 do. 1970 Mar. 5 1970 .80 7.28 do. urn discha rge, 98 cfs D ec. 6, 1966 (ga 8ofheight, 12. 22 ft, fro« « crest-st age gage) , from rating cu rve extended above 1.6 cfs of basis of computation flow throu gh culvert at gage h eights 8.0 10.67, and 12. 22 ft; no flow for all or most of e ach year. REMARKS. --Records poor. No re gulation or diversion district offic e. DISCHARGE, IN CUBIC FEET PER SECOND , WATER YEARS OCTOBER 1967 TO SEPTEMBER 1970 DEC. 19, 1967... 1.3 JAN. 28, 1969... .15 FEB. 24, 1969... 3 .2 MAR. 10, 1969... .29 29...... 10 25...... 14 11...... 22 JAN. 14, 1968... .02 FEB. 6...... 84 26. .02 7...... 23 27. 8...... 01 28. 19. HI R. 1...... ; 20...... 45 21...... 09 . 3 ...... 29 4. .: 4 27...... 1.0 23...... 1.1 5. 9 MAR. 5, CFS-DAYS MAXIMUM MINIMUM MEAN RUNOFF IN MONTH ACRE-FEET DECEMBER 1967...... 1 40 .3 0 .045 2.8 40 .3 0 .004 2.8 .... 0 92 1 0 .55 34 68 73 .6 0 .22 13 33 1 33 1 .15 .15 0 .005 .3 .15 .15 0 .0004 .3
NOTE. FLOW OCCURRED ONLY ON DAYS LISTED ABOVE.
11011000 COTTONWOOD CREEK AT BARRETT DAM, NEAR DULZURA, CALIF. LOCATION.--Lat 32°40'46", long 116°40'11", in SEfcNWkNWfc sec.22, T.17 S., R.3 E. , San Diego County, on Barrett
RIOD OF RECORD.--January 1906 to December 1915, October 1945 to September 1966 (discontinued"). Published Sep- from Cottonwood Creek basin below Morena Dam (drainage area, 130 sq mi). different datum (prior to completion of dam). REMARKS.--Records of inflow represent all water reaching Barrett Reservoir, including precipi storage, release (draft), spill, leakage, and evaporation. Evaporation from reservoir surface computed on basis of evaporation from Colorado land pan using a coefficient of 0.76. Prior to October 1964, a coefficient of 0.80 was used except for the period.January 1962 to June 1963 when the mass-transfer method was used. Area-capacity tables for reservoir are based on a resurvey made in 1948, 1951, and 1955. Barrett Dam was com- 168.88 ft), 44,760 acre-ft. Dead storage, 719 acre-ft below lowest outlet at gage height 58.88 ft, included in these records. Flow partly regulated by Morena-.Reservoir (see station 11010000). Water drawn from Barrett COOPERATION.--Records computed in cooperation with city of San Diego. REVISIONS (WATER YEARS).--WSP 1395: 1949-54. WSP 1928: Drainage area. MONTHLY INFLOW, WATER YEAR OCTOBER 1965 TO SEPTEMBER 1966
MONTH INFLOW HEIGHT (ACRE- IN (ACRE- RATION PLUS (ACRE- (FEET) * FEET) (ACRE- FEET) (ACRE- BARRE rr RESERVOIR FEET) FEET) 1,335 -32 0 31 0 -1 75 2,094 IT 59 0 11 0 770 2,477 +383 0 7 5 390
+1,434 0 290 5 1,724
2,986 + 509 0 14 524 3,832 +846 0 19 866 4,274 +442 0 40 482 4,351 +77 0 63 140 3,711 . -640 545 68 1,460 -2,251 2,450 58 257 841 660 37 0 78 816 0 34 0 9 SEPTEMBER...... 798 -18 0 25 0 7
WTR YR 1966. -569 3,655 407 2.2- 3,495
t GAGE HEIGHT AT 0800 HOURS ON LAST DAY OF MONTH. NOTE. FOR MONTHS WHEN INFLOW TO THE RESERVOIR WAS SMALL AND OTHER QUANTITIES WERE LARGE, DISCORDANT FIGURES OF INFLOW MAY APPEAR. THIS ARISES PRIMARILY FROM THE DIFFICULTY OF COMPUTING INFLOW AS THE RESIDUAL OF SEVERAL LARGER QUANTITIES, WHICH ARE NOT SUSCEPTIBLE TO MEASUREMENT WITH A PRECISION NECESSARY TO PRODUCE A FINAL ANSWER WITHIN DESIRABLE LIMITS OF ACCURACY. TIJUANA RIVER BASIN
11011900 POTRERO CREEK TRIBUTARY NEAR BARRETT JUNCTION, CALIF. LOCATION.--Lat 32°36'04", long 116°41'04", in SWjNE^SWs sec.16, T.18 S., R.3 E., San Diego County, State Highway 94, 1.4 miles southeast of Barrett Junction. DRAINAGE AREA.--0.78 sq mi. PERIOD OF RECORD.--Annual axiraum water years 1962-66. February 1966 to September 1969. Annual maximum water year 1970. GAGE.--Crest-stage gage. Altitude of gage is 1,220 ft (fr topographic map). Dec. 12, 1961, to Feb. 17, 1966, crest-stage gage and Feb. 18, 1966, to Sept. 30, 1969, ter-stage recorder, at present site and datum. EXTREMES. --Haxiraums and minimums (discharge in cubic feet per second, gage height in feet) for the water years 1966-70 are contained in the following table: Minimum daily Wtr yr Date charge G.H. Date Discharge 1966 Nov. 294 15.25 Entire period 1967 122 13.42 Most of year 1968 104 13.16 do. 1969 7.0 10.82 do. 1970 Mar. 1970 2.3 10.43 do. Per rd: Maximum discharge, 294 cfs Nov. 22, 1965 (gage height, 15.25 ft), from rating curve xtended above 0.2* cfs- on basis of- culvert computation' of- peak fl- flow for most of time in each yea REMARKS.--Records poor. No regulation or diversion above station.
DISCHARGE! IN CUBIC FEET PER SECOND, FEBRUARY 1966 TO SEPTEMBER 1969
.0 MAR. 8, 1968. FEB. 25, 1969. .90 MAR. 5, 1969. JAN. 14, 1969... .80 26...... 60 .20 25...... 2.8 .50 .20 26...... 1.2 .20 APR. 11, 1967... .0 27...... 60 MAR. 1...... 10 NOV. 26...... 20 28...... 30 2...... DEC. 19...... 2.1 29...... 20 3...... FEB. 13, 1968... .10 30...... 10 4......
MONTH CFS-DAYS MAXIMUM RUNOFF IN ACRE-FEET NOVEMBER 1966...... 2.0 2.0 4.0 DECEMBER...... 23.1 16 CAL YR 1966......
APRIL 1967...... 1.0 1.0 WTR YR 1967...... 26.1 16
NOVEMBER 1967...... 20 .20 .007 DECEMBER...... 2.1 2.1 .068 CAL YR 1967...... 3.30 2.1 .009
FEBRUARY 1968...... 10 .10 MARCH...... 8.3 8.3 WTR YR 1968...... 10.70 8.3 CAL YR 1968...... 8.4 8.3
JANUARY 1969...... 5.28 2.8 .27 FEBRUARY...... 2.40 .90 .086 MARCH...... 2.50 .'30 .081 HTR YR 1969...... 10.18 2.8 .028
NOTE. FLOW OCCURRED ONLY ON DAYS LISTED ABOVE. TIJUANA RIVER BASIN
11012000 COTTONWOOD CREEK ABOVE TECATE CREEK, NEAR DULZURA, CALIF. LOCATION.--Lat 32°34'30", long 116°45'11", in NWWsSWJs sec.26, T.18 S., R.2 E. , San Diego County, on right bank 0.8 mile upstream from confluence with Tecate Creek and 5.1 miles south of Dulzura. DRAINAGE AREA.--310 sq mi. PERIOD OF RECORD.--October 1936 to September 1970. GAGE.--Water-stage recorder. Datum of gage 569.40 ft mean sea level (levels by International Boundary and Water Commission). AVERAGE DISCHARGE.--34 years, 6.77 cfs (4,900 acre-ft per year); edian of yearly mean discharges, 1.0 cfs (720 acre-ft per year). EXTREMES.--Maximums and minimums (discharge in c 1966-70 are contained in the following table: Minimum Wtr yr G.H. Date Dischargi 1966 1965 3.90 Long periods I 1967 1966 832 5.66 do. 1 1968 1968 117 3.10 do. 1 1969 791 5.58 do. 1 1970 18 2.13 "do. 1 Period of record: Maximum discharge, 4,340 cfs Feb. 7, 1937 (gage height, 9.65 ft), from rating curve extended above 1,500 cfs; no flow for part of each year. REMARKS.--Records good. Flow regulated by Morena Reservoir (capacity, 50,210 acre-ft) and Barrett Reservoir (capacity, 44,760 acre-ft). Water released from Barrett Reservoir through Dulzura conduit is diverted to Lower Otay Reservoir. REVISIONS (WATER YEARS).--WSP 1245: 1937-38. WSP 1928: Drainage area.
DISCHARGE, IN CUBIC FEET PER SECOND, HATER YEAR OCTOBER 1965 TO SEPTEMBER 1966 DAY 1 a 2.8 .6 .90 .70 .10 2 3 .1 .60 1.2 .10 3 0 .1 0 .80 .10 4 G .4 . 0 .50 .10 5 0 .7 0 .50 .10 6 0 .2 0 .50 0 7 0 .7 . .40 0 8 0 .3 .30 0 9 0 .0 .30 0 10 0 .9 .30 0 11 0 .6 . .30 0 12 0 .5 . .30 0 13 a .3 .30 0 It a .3 .30 0 15 0 .3 . .30 0 16 0 1 .2 .20 0 17 0 1 .1 .20 0 18 0 1 .1 . .20 0 19 0 .0 .10 0 20 0 .2 .10 0 21 0 1.2 .90 .10 0 22 3.1 .90 .70 .10 0 23 127 .80 .60 .10 0 24 28 .70 .70 .10 0 25 23 .60 .70 .20 0 26 16 .50 .90 .20 0 27 10 .70 .80 .20 0 28 6.4 .50 .60 .20 0 29 4.7 .40 .20 0 30 3.5 1 1.4 .10 0 31 3 1.6 .10 TOTAL 0 221.7 155.2 60.90 30.80 9.40 .50 0 0 0 0 MEAN 0 7.39 9.01 1.96 1.10 .30 .017 0000 MAX 0 127 16 7.6 2.5 1.2 .10 0 0 0 0 NIN 0 0 1.1 .40 .40 .10 00000 AC-FT 0 440 308 121 61 19 1.0 0 0 0 0 CAL YR 1965 TOTAL 448. BO MEAN 1.23 NAX 127 MIN 0 AC-FT 890 TIJUANA RIVER BASIN
11012000 COTTONWOOD CREEK ABOVE TECATE CREEK, NEAR DULZURA, CALIF.--CONTINUED DISCHARGE. IN CUBIC FEET PER SECOND. WATER VEAR OCTOBER 1966 TO SEPTEMBER 1967 OCT NOV DEC JAN FEB MAR APR' MAY JUN JUL AUG 1 0 .50 2.0 .10 .60 .30 2 0 .50 1.7 .10 .50 .20 3 0 .40 1.5 .10 .30 .20 4 0 .40 1.3 .40 .30 .20 5 39 .40 1.2 .40 .30 .20 6 238 .40 .90 .30 .20 .20 7 259 .30 .80 .20 .20 .10 8 42 .30 .60 .20 .20 .10 9 23 .30 .60 .20 .20 .10 1C IS .30 .60 .20 . .20 .10 11 10 .30 .50 .30 3.0 .10 12 7.0 .30 .40 .30 3.5 .10 13 S.4 .30 .40 .40 1.0 () 14 4.2 .30 .40 2.0 .50 15 3.4 .30 .40 .80 .30
16 2. .30 .30 .40 .20 17 2. .30 .30 .30 .20 IB 1. .20 .20 .30 .20 19 1. .20 .20 .30 .80 20 1. .30 .20 .20 .80 21 1.2 .30 .20 .20 .60 22 1.0 1.2 .20 .20 1.7 23 .90 11 .20 .20 1.1 24 .80 3.4 .20 .20 1.0 25 .70 7.1 .20 .20 .90 26 .70 4.9 .20 .20 .60 27 .60 3.7 .20 .20 .50 28 .SO 3.2 .20 .20 .50 29 .50 2.5 _»__ .40 .50 30 .BO 2.3 _. .30 .50 . 31 . 50 2.2 .30 _____ TOTAL 0 0 663.70 48.40 16.10 10.10 21.40 L.90 MEAN 0 0 21.4 1.56 .58 .33 .71 061 MAX 0 0 259 11 2.0 2.0 3.5 .30 HIM 000 .20 .20 .10 .20 0 AC-FT 0 0 1.320 96 32 20 42 3.8
HTR YR 1967 TOTAL 761.60 MEAN 2.09 MAX 259 MIN 0 AC-FT 1.510
DISCHARGE. IN CUBIC FEET PER SECOND, HATER YEAR OCTOBER 1967 TO SEPTEMBER 196B NOV DEC JAN FEB MAR APR MAY JUN JUL
7 0 .40 .10 .10 .10 8 0 .30 .10 16 .10 9 0 .30 .10 8.3 0 10 0 .30 .20 2.8 0 11 0 .30 .20 1.7 0 12 0 .30 .20 1.1 0 13 0 .20 .60 .80 0 14 0 .20 .70 .80 0 15 0 .20 .20 .70 0 16 .10 .20 .20 .60 0 17 .60 .20 .20 .60 .10 18 8.6 .10 .20 .70 .20 19 44 .10 .20 1.2 .10 20 18 .10 .20 .50 .10 21 10 .10 .20 .30 .10 22 6.4 .10 .20 .30 .10 23 4.7 .10 .20 .20 0 24 3.9 .10 .10 .20 0 25 3.2 .10 .10 .20 0 26 .6 2.7 .10 .10 .20 0 27 .30 2.3 .20 .10 .20 0 28 2.2 .30 .20 .10 0 29 2.0 .20 .10 .10 0 30 1.7 .20 -»_#__ .10 0 31 1.6 .20 -_____ .10 _____ TOTAL 0 1.90 112.00 10.60 5.40 38.20 4.70 MEAN 0 .063 3.61 .34 .19 1.23 .16 MAX 0 1.6 44 1.5 .70 16 2.0 MIN 000 .10 .10 0 0 AC-FT 0 3.8 222 21 11 76 9.3 CAL YR 1967 TOTAL 211.80 MEAN .58 MAX 44 MIN 0 AC-FT 420 HTR VR 1968 TOTAL 172.80 MEAN .47 MAX 44 MIN 0 AC-FT 343 TIJUANA RIVER BASIN
11012000 COTTONWOOD CREEK ABOVE TECATE CREEK, NEAR DULZURA, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEET PER SECOND. MATER VEAR OCTOBER 1968 TO SEPTEMBER 1969
5.1 4.8 4.8 4.6 4.4 4.4 4.4 9.1 4.1 7.4 3.9 5.8 3.9 5.1 4.1 4.1 3.9 3.7 3.7 .20 3.2 3.6 .20 2.8 3.2 .10 2.7 2.0 1.7
.10 .10 .10 .10
8.3 7.7 13 6.9 5.8 S.4 TOTAL 0 189.60 1.186.5 926.9 79.20 MEAN 0 6.12 42.4 29.9 2.64 - HAX 0 .56 472 81 5.1 MIN 0 0 1,9 5.4 .40 AC-FT 0 376 2.350 1.B40 157
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1969 TO SEPTEMBER 1*70 NOV DEC JAN FEB MAR APR MAV JUN ' JUL
0 .05 .33 .01 0 .06 .33 .05 0 .07 .33 .10 0 .07 .25 .10 0 .05 .25 .06 0 .05 .22 .04 0 .07 .22 .03 0 .09 .17 .03 0 .10 .17 .01 .01 .12 .17 0 .02 .14 .17 0 .03 .14 .17 .06 .04 .57 .12 .19 .05 _«_« .10 .09 .05 -_ .10 .04 .05 .10 TOTAL 0 .25 2.82 22.09 1.20 MEAN 0 .008 .10 .71 .040 MAX 0 .05 .57 6.0 .19 MIN 0 0 .04 .10 0 AC-FT 0 .5 5.6 44 2.4 CAL VR 1969 TOTAL 2,390.00 MEAN 6.55 MAX 472 MIN 0 AC-FT 4.740 WTR VR 1970 TOTAL 26.39 MEAN .07 MAX 6.0 MIN 0 AC-FT 52 TIJUANA RIVER BASIN
11012500 CAMPO CREEK NEAR CAMPO, CALIF. LOCATION.--Lat 320 35'28", long 116°31'29", in SWsNE'iiSE'i; sec.24, T.18 S., R.4 E., San Diego County, on left ba just upstream from bridge on State Highway 94, 3.5 miles southwest of Campo. DRAINAGE AREA.--85.0 sq mi, of which 3 sq mi is in Mexico. PERIOD OF RECORD.--October 1936 to September 1970. GAGE.--Water-stage recorder and broad-c sted weir. Datu 3f gage 2,178.92 ft above mean sea level. Prio Dec. 1, 1954, at datum 1 ft higher. AVERAGE DISCHARGE.--34 years, 1.86 cfs (1,350 acre-ft per year); median of yearly discharges, 0.1 cfs (72 acre-ft per year). EXTREMES,--Maximums and minimums (discharge in cubic feet per second, gage height in feet). Annual maximum discharge (*) and peak discharges above base (20 cfs), water years 1966-70 Date Time Disch. Date Disch. Date Nov. 22, 1965 2400 *1.0 Nov. 19, 1967 0700 *.60 Mar. 5, 1970 Sept.29, 1967 0600 .50 1.20 Feb. 26, 1969 1600 *10 1.78 Annual minimum daily discharge, water years 1966-70 Wtr yr Date Discharge Wtr y Date Discharge 1966 Most of time 1969 Long periods 0 1967 do. 1970 Sept. 26-30, 1970 .04 1968 Entire year 0 Period of record: Maximum discharge, 880 cfs Feb. 6, 1937 (gage height, 4.80 ft, present datum), from rating curve extended above 110 cfs on basis of velocity mean-depth relation and cross-sectional area at con trol; no flow for part of most years. REMARKS.--Records good. No gage-height record Mar. 1 to Apr. 9, 1969. Flow partly regulated since August 1956 by small conservation reservoir. No diversion above station. REVISIONS (WATER YEARS).--WSP 1635: 1937-38, 1940(m). WSP 1928: Drainage area.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEARS OCTOBER 1966 TO SEPTEMBER 1968
NOV. 22, 1965.... .30 MAR. 22, 1967.... .10 APR. 8, 1967... APR. 30, 1967.... MAY 1......
j_ 2 3 . . . 4. 5» ...... 7...... 1
9 2
MONTH CFS-DAYS MAXIMUM .013 .007 .0030 2.2
.2 1.4
.068 4.2 .087 5.2 .077 4.8 .020 7.10 .20 .020
NOTE. FLOW OCCURRED ONLY ON DAYS LISTED ABOVE. TIJUANA RIVER BASIN
11012500 CAMPO CREEK NEAR CAMPO, CALIF.--CONTINUED
DISCHARGE, IN CUBIC FEET PER SECOND, MATER YEAR OCTOBER 1968 TO SEPTEMBER 1969
MOV DEC JAN FEB MAR APR MAY JUN JUL
.70 1.0 .70 .60 .20 Z 0 .50 1.0 .70 .50 .20 .20 .20 3 0 .40 1.0 .70 .50 .20 .20 .20 4 0 .40 1.0 .80 .50 .20 .20 .20 5 0 .40 1.0 .90 .50 .20 .20 .20
6 0 .40 1.0 1.0 .50 .20 .20 .20 7 0 .40 1.0 1.0 .60 .20 .20 .20 8 0 .40 1.0 .80 .60 .20 .30 .20 9 0 .40 1.0 .80 .60 .20 .20 .20 10 0 2.0 1.0 .70 .60 .20 .20 .20
11 0 1.3 1.0 .70 .60 .20 .20 .20 12 0 1.2 1.0 .70 .70 .20 .20 .20 13 0 1.3 1.0 .60 .60 .20 .20 .20 14 0 1.2 1.0 .60 .50 .20 .20 .20 15 0 1.1 1.0 .60 .40 .20 .20 .20
16 0 1.1 .80 .60 .40 .20 .20 .20 17 0 1.1 .80 .60 .40 .20 .20 .20 18 0 1.0 .80 .60 .30 .20 .20 .20 19 0 1.0 .BO .60 .30 .20 .20 .20 20 0 1.0 .80 .60 .30 .30 .20 .20
21 0 1.1 .80 .70 .30 .20 .20 .20 22 0 1.1 .80 .70 .30 .20 .20 .20 23 0 1.0 .80 .70 .30 .20 .20 .20 24 0 1.0 .80 .70 .30 .20 .20 .20 25 .20 0 1.0 .80 .80 .30 .20 .20 .20
26 2.2 1.0 .80 .BO .30 .20 .20 .20 27 4.9 1.0 .70 .80 .20 .20 .20 .20 1.8' 28 . 1.0 .70 .80 .20 .20 .20 .20 29 1.0 -" .80 .20 .20 .20 .20 30 ______1.0 .70 .70 .20 .20 .20 .20 31 - ______1.0 .60 .20 .20
TOTAL 0 0 .20 8.9 28.50 26.60 22.40 12.60 6.30 6.30 6.00 MEAN 0 0 .007 .32 .92 .89 .72 .42 .20 .20 .20 MAX 0 0 .20 4.9 2.0 1.0 1.0 .70 .30 .30 .20 MIN 0 0 0 0 .40 .70 .60 .20 .20 .20 .20 AC-FT 0 0 .4 18 57 53 44 25 13 13 12
CAL YR 196B TOTAL o.oo MEAN .000 MAX .00 MIN 0 AC-FT 0 HTR VR 1969 T07AL 117.80 MEAN .32 MAX 4.9 MIN 0 AC-FT 234
DISCHARGE f IN CUBIC FEET PER SECOND, HATER YEAR OCTOBER 1969 TO SEPTEMBER 1970
DAY OCT NOV JUL AUG SEP
1 .17 .05 .09 .09 .1 .24 .09 .14 .09 .06 .06 .07 2 .14 .05 .09 .09 .1 .24 .09 .11 .09 .06 .06 .07 3 .14 .05 .09 .09 .1 .17 .09 .11 .09 .06 .06 .07 4 .11 .05 .09 .09 .1 .17 .09 .14 .09 .06 .09 .07 5 .11 .05 .09 .09 .1 .56 .09 .14 .09 .06 .09 .06
6 .09 .06 .09 .09 .1 .39 .09 .14 .09 .06 .09 .06 7 .09 .09 .09 .09 .1 .24 .11 .14 .09 .05 .09 .06 8 .06 .09 . 09 .09 .1 .24 .11 .14 .09 .05 .09 .06 9 .06 .09 .09 .09 .1 .05 .09 .06 10 .11 .05 .09 .06
11 .06 .10 .09 .11 .17 12 .06 .10 .09 .11 .17 .20 .14 .11 .09 .06 .09 .05 13 .05 .09 .09 .11 .17 .20 .14 .09 .09 .06 .06 .05 14 .05 .09 .09 .11 .17 .20 .14 .09 .09 .06 .06 .05 19 .05 .08 .09 .11 .17 .20 .14 .09 .09 .06 .11 .06
16 .06 .10 .09 .11 .17 .17 .14 .09 .09 .06 .09 .05 17 .06 .10 .09 .14 .17 .17 .14 .09 .06 .05 .09 .05 18 .06 .09 .09 .11 .17 .14 .14 .09 .06 .09 .09 .05 19 .06 .09 .09 .11 .17 .14 .14 .09 .06 .06 .09 .05 20 .06 .09 .09 .11 .17 .14 .14 .09 .06 .11 .09 .05
21 .06 .09 .09 .11 .17 .14 .14 .09 .06 .09 .09 .05 22 .06 .09 .09 .11 .17 .14 .14 .09 .06 .09 .09 .05 23 .06 .09 .09 .11 .17 .11 .14 .09 .06 .09 .09 .05 24 .06 .09 .09 .11 .17 .11 .14 .09 .06 .09 .OB .05 25 .06 .09 .09 .11 .17 .11 .14 .09 .06 .09 .08 .05
26 .05 .09 .09 .11 .17 .11 .14 .09 .06 .09 .08 .04 27 .05 .09 .09 .14 .17 .11 .24 .09 .06 .09 .08 .04 28 .05 .09 .09 .14 .20 .09 .20 .09 .06 .09 .OB .04 29 .05 .09 .09 .14 .09 .17 .09 .06 .09 .08 .04 30 .05 .09 .09 .14 _____ .09 .17 .09 .06 .09 .07 .04 31 .05 .09 .14 _____ .09 _____ .09 .09 .07
707 AL 2.20 2.52 2.79 3.44 4.55 5.75 4.06 3.30 2.30 2.22 2.56 1.61 MEAN .071 .084 .090 .11 .16 .19 .14 .11 .077 .072 .083 .054 MAX .17 .11 .09 .14 .20 .56 .24 .14 .11 .11 .11 .07 MIN .05 .OS .09 .09 .14 .09 .09 .09 .06 .05 .06 .0* AC-FT 4.4 5.0 5.5 6.8 a n 11
CAL YR 1969 TOTAL 125.31 MEAN .34 MAX 4.9 MIN 0 AC-FT 249 H7R YR 1970 TOTAL 37.30 MEAN .10 MAX .56 MIN .04 AC-FT 74 TIJUANA RIVER BASIN
11013000 TIJUANA RIVER NEAR DULZURA, CALIF. LOCATION.--Lat 32°33'56", long 116°46'27", in E% sec.33, T.18 S., R.2 E., San Diego County, on left bank 0.5 mile downstream from confluence of Cottonwood and Tecate Creeks and 5.5 miles south of Dulzura. DRAINAGE AREA.--481 sq mi, of which 70 sq mi is in Mexico. PERIOD OF RECORD.--October 1936 to September 1970. GAGE.--Water-stage recorder. Datum of gage is 542.42 ft above mean sea level (levels by International Boundary and Water Commission). Prior to Sept. 19, 1939, at datum 2.00 ft higher. AVERAGE DISCHARGE.--34 years, 10.9 cfs (7,900 acre-ft per yea dian of yearly mean discharges, 1.1 cfs (800 acre-ft per year). EXTREMES.--Maximums and minimums (discharge in cubic feet per second, gagi it in feet) for the water ye 1966-70 are contained in the following table: Minimum daily Wtr yr Date Discharge G.H. Date Discharge 1966 Nov. 23 1965 251 3.67 Long periods 1967 Dec. 7 1966 1,770 5.56 Many days 1968 Mar. 8 1968 2,130 5.83 Oct. 1 to Nov 18, 1967 1969 Feb. 26 1969 1,330 5.45 Several days 1970 Mar. 5 1970 21 2.69 Sept. 8, 1970 Period of record: Maximum discharge, 4,700 cfs Feb. 7, 1937 (gage height, 8.50 ft, present datum), from rating curve extended above 300 cfs on basis of velocity, mean-depth, and area studies; no flow for part of most years. REMARKS.--Records good. Flow regulated by Morena Reservoir (capacity, 50,210 acre-ft) and Barrett Reservoir (capacity, 44,760 acre-ft). Water diverted from Cottonwood Creek at Barrett Dam by Dulzura conduit to Jamul Creek. COOPERATION.--Thirty-six discharge measurements furnished by International Boundary and Water Commission. REVISIONS (WATER YEARS).--WSP 1635: 1939-41(M), 1943(M), 1948-49. WSP 1928: Drainage area.
DISCHARGE, IN CUBIC FEET PER SECOND, HATER YEAR OCTOBER 1965 TO SEPTEMBER 1966
DAY OCT NOV DEC JAN FEB MAR APR NAY JUN JUL Aue 1 0 3.1 .0 .2 2. .30 2 0 2.4 8 .4 2. .30 3 0 1.9 .9 .9 2. .20 4 0 1.6 .5 .7 1. .20 9 0 1.2 .1 .B 1. .20 6 0 .BO .6 .4 1. .20 7 0 .70 .9 .3 1. .10 B 0 .60 .5 .0 1. .10 9 0 1.1 ' .4 .4 1. .10 10 0 1.3 2 .1 1. .10 11 0 .BO 1 9 .8 1. .1C 12 0 .70 .6 .9 1. 13 0 1.1 .4 .5 \ m 14 0 3.4 .3 .2 1. 15 0 5.1 3 .9 1. 16 0 14 .9 .7 1. IT 0 IS .9 .7 1. 18 0 11 .9 .6 .90 19 0 B.I .9 .6 .80 20 0 6.9 .3 .6 .70 21 0 5.5 .6 .4 .70 22 0 7.B .0 .8 .60 23 142 6.9 .0 .7 .40 24 28 5.5 .8 .B .40 25 21 4.B .7 0 .60 26 16 4.2 .8 .7 .40 27 11 3.7 ,4 w 3 .40 28 7.2 3.4 .1 , 1 .40 29 5.1 5.7 .0 .40 30 3.9 20 .2 .40 31 9.4 .3 .30 TOTAL 0 234.2 157.70 10 .2 8 .5 31.50 1.90 MEAN 0 7.81 5.09 3 33 2 95 1.02 .063 MAX 0 142 20 .0 .0 2.7 .30 MIN 0 0 .60 .7 .7 .30 0 AC-FT 0 465 313 205 164 62 3.B CAL YR 1965 TOTAL 433.40 MEAN 1.19 MAX 142 MIN 0 AC-FT B60 NTR YR 1966 TOTAL 611.00 MEAN 1.67 MAX 142 MIN 0 AC-FT 1,210 TIJUANA RIVER BASIN
11013000 TIJUANA RIVER NEAR DULZURA, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEET PER SECOND, MATER YEAR OCTOBER 1966 TO SEPTEMBER 1967
JUN JUL AUG SEP 1 0 .5 3.8 .70 .40 .90 .20 .10 .10 2 0 .5 3. .60 .40 .90 .20 .10 .10 3 0 .4 3. .60 .30 .90 .20 .10 .10 4 0 .4 3. .70 .30 .90 .20 .10 .10 5 43 .5 3. .60 .20 .90 .20 .10 .10
6 476 .4 2. .60 .20 .80 .20 .10 .10 7 657 .1 2. .60 .20 .70 .20 .10 .10 8 63 .90 2. .60 .10 .70 .20 .10 .10 9 32 .0 2. .60 .10 .60 .20 .10 .10 10 27 .0 1. .60 .ID .60 .20 .10 .10
11 13 .1 1. .70 1.7 .60 .20 .10 .10 12 9.8 .3 1. .60 6.8 .50 .20 .10 .10 13 6.8 .3 1. .60 3.4 .50 .30 .10 .10 14 5.3 .2 1. 1.8 1.5 .40 .30 .10 0 15 4.3 .2 1. .90 1.0 .30 .30 .10 0 16 3.4 .3 1. .60 .70 .20 .20 .10 0 17 3.2 .2 1. .40 .50 .20 .20 .10 0 18 2.9 .0 1. . 0 .50 .20 .20 .10 0 19 2.5 .0 1. . 0 1.7 .20 .20 .10 0 20 2.5 .2 1. . 0 2.1 .20 .20 .10 0 21 2.4 .4 .80 . 0 1.4 .20 .20 .10 0 22 2.1 .4 .80 . 0 2.2 .20 .20 .10 0 23 1.9 3 .80 .30 2.1 .20 .10 .10 0 2* 1.9 .4 .80 .30 1.5 .20 .10 .10 0 25 1.8 1 .70 .30 1.4 .20 .10 .10 0 26 t.9 .8 .70 .30 1.1 .20 .10 .10 0 27 1.7 .2 .70 .30 .90 .20 .10 .10 0 28 1.7 .1 .70 .30 .90 .20 .10 .10 0 29 1.8 , 5 «.__. .40 .90 .20 .10 .10 0 30 2.7 1 .40 .90 .20 .10 .10 0 31 1.8 1 . 30 .20 .10 0 TOTAL 16.70 35.50 13 .40 5.50 3.10 1.30 MEAN 0 0 44.3 3.60 - 1.70 .54 1.18 .43 .18 .10 .042 MAX 0 0 657 31 3.8 1.8 6.8 .90 .30 .10 .10 MIN 000 .90 .70 .30 .10 .20 .10 .10 0 AC-FT 0 0 2,720 221 94 33 70 27 11 6.2 2.6
DISCHARGE, IN CUBIC FEET PER SECOND, MATER YEAR OCTOBER 1967 TO SEPTEM ER 196B DAY
1 0 .10 1.2 .50 .90 .30 .20 .10 .10 .10 2 0 .10 1.1 .50 4.8 .30 .20 .i TOTAL 0 1.50 ~ ITS. 80 35.00 36.90 463.20 29.40 6 .70 4.80 3.10 3.10 3.00 MEAN 0 .050 5.67 1.13 1.27 14.9 .98 .22 .16 .10 .10 .10 MAX 0 .20 B6 1.5 3.8 364 4.8 .30 .20 .10 .10 .10 MIN 0 0 .10 .60 .60 .40 .20 .20 .10 .10 .10 .10 AC-FT 0 3.0 349 69 73 919 SB 13 9.5 6.2 6.2 6.0 CAL YR 1967 TOTAL 411.80 MEAN 1.13 MAX 86 MIN 0 AC-FT B17 TIJUANA RIVER BASIN 11013000 TIJUANA RIVER NEAR DULZURA, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEET PER SECOND, MATER YEAR OCTOBER 1968 TO SEPTEMBER 1969 DAY DCT NOV DEC JAN FEB MAR APR HAY JUN JUL 1 .20 .20 0 .10 11 94 7.2 .0 .40 .10 2 .20 .10 0 .10 8.2 77 7.2 .0 .50 .10 3 .20 .20 0 .10 5.9 66 T. 8 .90 .30 .10 4 .20 .30 .10 .10 5.3 60 7.5 .0 .30 .10 5 .10 .30 .10 .10 5.6 SO 6.8 .1 .30 .10 6 .10 .20 .10 .10 22 44 7.5 .1 .60 .20 7 .10 .20 .10 .10 30 42 6.8 .1 .60 .20 8 .10 .20 .10 .10 19 38 6.8 .0 .50 .20 .10 9 .20 .10 .10 .10 16 31 6.8 .90 .40 .20 .10 10 .20 .20 .10 .10 13 44 7.2 .80 .40 .20 11 .20 .10 .10 .10 11 62 7.2 .80 .40 .20 12 .20 .10 .10 .10 10 43 6.5 .60 .50 .20 13 .20 .10 .10 .10 8. 60 5.9 .60 .50 .20 14 .10 .20 .10 .60 .40 .20 15 .10 .20 .10 .10 6. 45 4.5 .60 .40 .20 16 .20 .20 .10 .10 6. 38 4.1 .60 .30 .20 17 .10 .10 .10 .10 4. 33 3.6 .60 .20 .20 18 .10 .10 .10 .10 11 31 3.6 .50 .20 .20 19 .20 .10 .10 .10 43 26 3.4 .50 .10 .20 20 .10 0 .20 .10 33 21 3.4 .50 .10 .20 21 .10 0 .20 .10 31 22 3.2 .60 .10 .20 22 .10 .10 .20 1.7 104 42 3.2 .60 .10 .20 23 .10 .10 .10 1.3 112 32 3.2 .70 .10 .20 24 .20 .10 8.2 96 21 3.0 .60 .10 .20 25 .20 .10 82 150 15 2.7 .60 .10 .20 26 .20 .20 95 814 11 1.9 .60 .10 .20 27 .10 .10 47 239 9.4 1.4 .40 .10 .20 28 .10 .10 27 123 9.0 1.0 .40 .10 .20 29 .10 .10 24 8.2 1.0 .40 .10 .20 30 .10 .10 16 7.5 1.0 .40 .10 .20 31 .10 .10 12 » 7.2 .40 .20 .10 155.3 140.5 21.50 a. 40 5 .70 3.30 MEAN .15 .11 .10 10.2 69.5 37.3 4.68 .69 .28 .18 .11 MAX .20 .30 .20 95 814 94 7.8 1.1 .60 .20 .20 KIN .10 0 0 .10 4.8 7.2 1.0 .40 .10 .10 .10 AC-FT 2, 290 279 43 17 11 6.6 DISCHARGE, IN CUBIC FEET PER SECOND, MATER YEAR DCT08 ER 1969 TO SEPTEMBER 1970 DAY OCT NOV DEC JAN FEB MAR, APR HAY JUN JUL 1 .16 .14 .11 .16 .16 2.3 1.0 .28 .16 .11 .08 z .22 .14 .11 .14 .16 4.6 .94 .25 .14 .11 .08 3 .25 .14 .11 .14 .14 1.5 .86 .22 .14 .11 .08 4 .19 .11 .11 .16 .14 .94 .78 .22 .11 .11 5 .19 .14 .11 .19 .14 9.2 .64 .22 .11 .11 .19 .14 .14 .11 .16 .58 .28 .22 .14 .19 .16 .11 .11 .25 1.3 .25 .22 .16 .19 .16 .14 .11 .28 1.5 .22 .22 .14 .19 .14 .16 .14 .28 .86 .19 .22 .11 .19 .11 .14 .14 .32 .70 .22 .22 .11 .16 .11 .14 .14 .37 .64 .19 .22 .11 .16 .14 .14 .16 .37 .64 .19 .19 .11 .19 .14 .14 .16 .37 .64 .22 .16 .11 .16 .14 .14 .19 .37 .70 .25 .16 .11 .19 .14 .16 .19 .37 .64 .22 .16 .11 .16 .14 .16 .19 .37 .58 .25 .16 .11 .16 .14 .14 .19 .37 .58 .25 .19 .11 .16 .16 .14 .19 .42 .64 .22 .19 .11 .16 .16 .19 .19 .42 .64 .22 .19 .14 .19 .16 .19 .19 .42 .86 .22 .22 .14 .16 .16 .16 .16 .22 .19 .47 1.1 .19 .19 .14 .16 .14 .22 .19 .47 1.3 .37 .22 .14 .16 .14 .19 .19 .58 .94 .37 .22 .14 .16 .11 .19 .19 .»« 1.0 .42 .19 .14 .16 .11 .16 .19 . .« 1.2 .32 .16 .14 .14 .19 .16 1.1 .16 5.48 4.30 4.69 5.01 8.76 42.36 10.73 6.34 3.89 2.66 .18 .14 .15 .16 .31 1.37 .36 .20 .13 .086 .25 .19 .22 .19 .58 9.2 1.0 .28 .16 .11 .14 .11 .11 .11 .14 .58 .19 .16 .11 11 8.5 9.3 9.9 17 84 21 13 7.7 >9 TOTAL 3,614.87 MEAN 9.90 MAX 814 MIN . 10 AC-FT 7,170 MTR YR 1970 TIJUANA RIVER BASIN 11013200 RODRIGUEZ RESERVOIR AT RODRIGUEZ DAM, BAJA CALIFORNIA, MEXICO LOCATION.--Lat 32°26'40", long 116°54'25", Baja California, Mexico, at Rodriguez Dam on Rio de las Palmas, 0.2 mile upstream from Arroyo Matanuco and 10 miles southeast of Tijuana, DRAINAGE AREA.--977 sq mi, of which 10 sq mi is in the United States. PERIOD OF RECORD.--April 1937 to September 1970. Published with record for Tijuana River near Nestor, Calif., October 1953 to September 1957. Monthend contents for April 1937 to September 1950 published in WSP 1315-B and for October M50 to September 1960 in WSP 1735. GAGE.--Nonrecording gage. Altitude of gage is 250 ft (from topographic map). EXTREMES.--Maximum and minimum contents, in acre-feet, for the water years-1966-70 are contained in the following table: Maximum Minimum Wtr yr ents Date 1966 . 2-5, 1966 ,640 Oct. 1 to Nov. 22, 1965 1967 . 12, 1966 ,160 Sept.30, 1967 1968 . 1, 1967 ,432 'Sept.30, 1968 1969 . 24-28, 31, Apr. 6-20, 1969 ,210 Jan. 25, 1969 1970 1, 1969 ,620 Sept.30, 1970 2,190 Period of record: Reservoir spilled during March 1938, September 1940, February to May 1941, March 1942, February and March 1944; reservoir dry Apr. 2, 1964, to Apr. 9, 1965, Aug. 21 to Nov. 22, 1965. REMARKS.--Reservoir is formed by a thin-shell concrete-arch dam completed in 1936; storage began in 1937. Capac ity table is based on surveys made in 1927. Maximum storage at crest of spillway gates (elevation, 410.10 ft), 111,070 acre-ft; at spillway lip (elevation, 380.08 ft), 74,580 acre-ft; dead storage below outlet (elevation, 267.39 ft), 1,650 acre-ft included in contents. Reservoir stores water for irrigation of 3,000 acres on both banks O.S to 5.5 miles downstream and for municipal supply for city of Tijuana. REVISIONS.--WSP 1928: Drainage area. MONTHEND CONTENTS, MATER YEARS OCTOBER 1965 TO SEPTEMBER 1970 MONTH CONTENTS CHANGE IN MONTH CONTE* *TS CHANGE IN (ACRE-FEET) CONTENTS (ACRE- EET) CONTENTS (ACRE-FEET) (ACRE-FEET) OCT. 31, 1965...... 0 269 -135 NOV. 30...... 1,765 175 -94 DEC. 31...... 4,122 110 -65 -1,197 JAN. 31, 1966..... +202 672 +762 FEB. 26...... 4,631 +307- .290 +5,416 -136 ,210 +920 APR. 30...... 4,293 -202 ,150 -60 .... 4,153 -140 ,960 -190 JUNE 30...... 3,967 -166 ,730 -230 -654 ,310 -420 -554 ,900 -410 SEPT. 30...... 2,350 -409 ,630 -270 +5,226 -397 ,300 -330 NOV. 30...... 1,726 -225 ,050 -250 DEC. 31...... +2,316 ,660 -190 CAL YR 1966...... -76 CAL YR 1969...... 4,126 +62 ,670 -190 FEB. 28...... 4,041 -65 ,360 -310 MAR. 31...... 3,675 -366 ,340 -20 .... 3,330 -345 ,200 -140 -536 ,050 -150 JUNE 30...... 2,356 -438 ,540 -510 JULY 31...... 1,673 -463 ,060 -460 AUG. 31...... 1,619 -254 ,600 -460 -167 ,190 -410 .... -916 OCT. 31...... 1,274 DEC. 31...... 1,307 .... JAN. 31, 1966...... 1,203 -104 FEB. 29...... 1,111 -92 .... 1,012 -99 -156 -79 JUNE 30...... 692 -65 JULY 31...... 625 -67 .... 513 -112 SEPT. 30...... 404 -109 WTR YR 1966...... TIJUANA RIVER BASIN 11013500 TIJUANA RIVER NEAR NESTOR, CALIF. DRAINAGE AREA.--1,690 sq i, of which 1,236 sq mi is in Mexico. PERIOD OF RECORD.--Octobe 1914 to September 1915, October 1936 to September 1970. changes prior to Aug. 6, 1958. AVERAGE DISCHARGE.--35 years, 32.1 cfs (23,260 acre-ft per year); median of yearly mean discharges, 3.1 cfs (2,200 acre-ft per year). EXTREMES.--Maximums and minimums (discharge in cubic feet per second, gage height in feet) for the water years 1966- 70 a Minimum Wtr yr Date Discharge G.H. Date Dischai 1966 Nov. 73 1965 267 5.75 Most of time 1967 Dec. 7, 1966 2,020 8.35 do. 1968 Df>r 18, 1967 150 3.61 do. 1969 Ffih, 26, 1969 553 5.43 do. 1970 Mar. 5, 1970 20 2.90 do. no fl 1970 are published in reports of the Geological Survey. COOPERATION.--Seven discharge measurements furnished by San REVISIONS.--WSP 1928: Dr DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEARS OCTOBER 1965 TO SEPTEMBER 1970 NOV. 23, 1965.... 91 FEB. 7, 1966.... 2.8 JAN. 25, 1969... .10 .10 8.6 3.4 1.4 23, 1967.... 18 12 8.3 6.1 2.7 .30 , 2.4 334 7.2 329 4.7 182 .20 1968 124 1, 1970.... 5.0 6.3 1969 6.3 0 22. RUNOFF IN ACRE-FEET NOVEMBER 1965...... 107.20 3.57 213 DECEMBER...... 169.90 5.48 337 CAL YR 1965...... 276.80 .76 553 JANUARY 1966...... 8.10 3.9 .26 16 FEBRUARY...... 3.10 2.8 .11 SEPTEMBER...... 10 .10 .003 WTR YR 1966...... 288.40 .79 DECEMBER 1966...... 1,129.20 CAL YR 1966...... 1,140.50 JANUARY 1967...... 4.1 4.1 .13 APRIL...... 3.2 1.6 .11 6.4 WTR YR 1967...... 1,136.50 907 3.11 2,250 NOVEMBER 1967. 44.80 1.49 DECEMBER...... 55.60 1.79 CAL YR 1967. 107.70 .30 MARCH 1968.... 20.5 .66 WTR YR 1968. 120.90 .33 CAL YR 1968. 20.50 .05 JANUARY 1969...... 37.20 1.20 74 FEBRUARY...... 1,275.20 334 45.5 2,530 MARCH...... 580.30 124 18.7 1,150 WTR YR 1969...... 1,892.70 334 5.19 3,750 CAL YR 1969...... 1,892.70 334 5.19 3,750 35 NOTE. FLOW OCCURRED ONLY ON DA.YS LISTED ABOVE. OTAY RIVER BASIN 11014000 JAMUL CREEK NEAR JAMUL, CALIF. DRAINAGE AREA.-- 70.3 sq lni . .--April GAGE.--Water-sta EXTREMES .- -Maximurns and ininimums (discharge in cubic feet per second, gage height in feet) for the water years Maximum Minimum Wtr yr Date Discharge G.H. Date Discharj 1966 Nov. 23, 1965 680 3.60 Long periods 1967 Dec. 6, 1966 2,720 5.56 do. 1968 Mar. 8, 1968 230 3.36 do. 1969 Feb. 26, 1969 1,060 4.07 Many days 1970 Apr. 27, 1970 34 2.23 Long periods Period of record: Maximum discharge, 4,000 cfs Dec. 1, 1947 (gage height, 6.42 ft, present datum), from REMARKS. --Re cord discharges in Creek via Dulzura Creek and is included in discharge for this station (see station 11012000). REVISIONS (WATER YEARS).--WSP 1565: 1952, 1954. WSP 1715: 1944, 1946. WSP 1928: Drainage are DISCHARGE. IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1965 TO SEPTEMBER 1966 DAY JUN JUl 0 .51 .3 Z. . 20 0 17 40 0 .5 1 .7 3. 20 0 37 40 0 .5 1 .2 3. 0 .5 .2 .0 2. 20 0 39 39 0 .9 B .90 2. 2-0 0 39 41 0 .9 .BO 2. 20 0 39 37 0 .9 4 1. . 20 0 "4139 30 0 .B 3 1. 20 0 22 0 .4 2 1 ^ f 20 0 41 15 0 .7 2 1. 10 0 40 12 0 .90 2 !. . 10 0 39- 9.4 0 .BO 1 1. . 10 0 39 6.6- 3B 4.5 0 .5 1 1. 0 0 3".0 0 2 1 L 0 0 39 0 1 .2 1. 0 0 28 2.2 0 3 .1 1. 0 0 4.4 1.2 0 1 .0 1. 0 0 2.3 .50 0 . .3 1. 0 6.4 28 .30 0 .B 0 0 15 35 .20 0 .2 .80 0 12 39 .10 0 . .9 .70 0 3.7 44 0 .10 , ; .2 .60 0 2.B 46 0 193 .1 .50 0 2.B 45 0 IB <0 .B .50 0 1.9 44 0 9.2 0 .6 .70 0 1.9 43 0 7.3 .70 .9 .70 0 31 41 0 4. 4 .90 .B .70 0 39 41 0 2.5 .70 .5 .60 0 40 45 0 2.0 .60 .40 0 35 43 0 1.7 3 a. s .40 o 5.3 41 0 31 --..-. 2 3.6 .30 3.2 0 TOTAL MEAN 0 7.94 7.66 3.79 B.B7 1.33 .070 6.45 36.5 11.0 MAX MIN 0 0 .BO .60 .BO .30 0 0 2.3 0 AC-FT .2 397 2,170 67B OTAY RIVER BASIN 11014000 JAMUL CREEK NEAR JAMUL, CALIF.--CONTINUED DISCHARGE, IN CUBIC F66T PER SECOND, WATER YEAR OCTOBER 1966 TO SEPTEMBER 1967 OCT NOV DEC JAN FEB MAR APR MAY JUN JUL 1 0 15 20 3D .3 .1 .10 2 0 15 20 32 .3 .9 .10 3 0 15 20 31 .2 .8 .10 4 0 15 20 31 .0 .8 0 5 28 15 20 31 .0 .6 0 6 853 15 1 30 .9 .6 0 7 536 15 1 33 .9 .2 0 8 60 15 1 32 .8 .4 0 9 25 15 1 31 .7 .4 0 10 10 14 1 32 .5 .4 0 11 7> 14 1 30 .6 .3 0 12 5. 14 1 30 .9 .2 0 13 4. 14 1 30 .8 .0 0 14 3, 14 1 18 .8 .80 .10 15 3. 14 1 21 .6 .60 .10 16 2. 14 22 30 .6 .40 .10 17 2. 14 22 30 .5 .20 0 18 2, 14 22 24 .9 .20 0 19 2. 14 22 18 .7 .20 0 20 2. 14 21 13 .6 .20 0 21 2. 14 21 10 .4 .20 0 22 l^ 17 25 B.2 .B .20 0 23 1. 25 26 6.B .2 .20 0 24 4. 7.5 30 5. .1 .20 0 25 5. 19 30 4. .6 .20 0 26 g B 18 29 3. .9 .20 0 27 4. 18 28 2, 1 .6 .20 0 28 4, 18 31 .4 .20 0 29 13 18 2. .4 .20 0 30 15 19 .2 .20 0 31 21 2. .20 TOTAL 0 0 1.619. 4B3. 619 607. 10 .2 31.50 .60 MEAN 0 0 52. 15. 22.1 19. 3 34 1.02 .020 MAX 0 0 85 2 31 33 .9 3.1 .10 MIN 0 0 7. 19 2.3 .5 .20 0 AC-FT 0 0 3,210 95 1.2 DISCHARGE, IN CUBIC FEET PER SECOND. HATER YEA( 1 0 0 15 .20 0 .0 2 0 0 15 .20 0 .7 3 0 0 18 .20 0 .80 4 0 0 17 .20 0 .50 5 0 0 16 .20 0 .40 6 0 0 15 .10 0 .30 7 0 0 14 .10 0 .20 B 0 0 12 .10 36 .20 9 0 0 11 .10 $.1 .20 10 0 0 10 .20 1.8 .10 11 00 8.7 .20 1.3 .10 12 00 7.5 .20 1.0 .10 13 00 6.4 .40 .90 .10 14 0 1.7 5.7 .20 .80 15 0 8.5 5.1 .10 .70 16 0 12 3.4 .10 .60 17 0 13 1.8 .10 .50 18 0 28 1.2 .10 .40 19 0 50 .90 .10 .30 20 0 14 .70 .10 .20 21 0 17 .60 2.6 22 0 19 .60 5.3 23 0 19 .40 5.7 24 0 19 .40 6.6 25 0 18 .30 8.2 26 0 18 .30 6.0 27 .10 17 .5 0 4.4 28 0 17 .60 3.2 29 0 17 .40 2.5 30 0 16 .3 2.0 31 16 .3 1.5 TOTAL .10 320.2 1B9.1 3.20 97.60 >.70 0 MEAN .003 10.3 6.1 .11 3.15 .19 0 MAX .10 50 IB .40 36 1.7 0 MIN 0 0 .30 0 0 0 0 AC-FT .2 635 375 6.4 194 11 0 4.290 HTR YR 1968 TOTAL 615.90 MEAN 1.6B MAX 50 MIN 0 AC-FT 1,220 OTAY RIVER BASIN 11014000 JAMUL CREEK NEAR JAMUL, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEET PER SECOND. HATER YEAR OCTOBER 1968 TO SEPTEMBER 1969 NOV DEC JAN FEB MAR APR MAY JUN JUL I 0 0 3.0 65 36 30 31 28 19 2 0 0 2.4 48 35 31 31 29 23 3 0 0 2.0 41 36 32 31 28 25 4 0 0 2.1 5 0 0 2.0 30 33 35 31 28 28 6 0 0 35 26 35 37 30 25 27 7 0 0 56 24 34 37 30 25 27 8 0 0 23 22 33 36 30 25 27 9 0 0 13 21 34 35 30 21 27 10 0 0 9.6 28 34 35 30 20 29 11 0 0 7.2 .09 12 0 0 6.1 20 34 34 34 21 29 .04 13 0 0 4.5 .04 14 0 3.2 3.8 .02 IS 0 .33 3.7 23 33 36 33 20 29 16 0 .16 3.5 20 31 35 32 20 28 IT 0 .17 3.3 19 31 35 33 19 28 18 0 .23 17 18 34 34 32 20 28 19 0 .24 64 20 32 33 31 19 28 20 .08 .30 63 21 31 33 31 20 27 21 .16 .45 41 27 31 33 31 20 26 22 .10 .34 24B 40 31 34 30 19 29 23 .10 .30 125 38 32 32 30 19 34 24 .04 .77 123 37 31 32 30 19 25 25 .04 68 271 26 .23 68 673 37 30 32 29 21 25 27 .24 46 163 38 30 32 29 18 25 28 .16 13 90 38 29 32 29 18 25 29 .10 11 38 29 32 29 19 11 30 0 5.9 i. - 1. . 38 30 32 28 18 5.8 31 0 3.5 36 31 19 3.8 TOTAL MAX 29 34 MIN 000 2.0 18 29 30 2B IB 3.8 CAL YR 589 DISCHARGE, IN CUBIC FEET PER SECOND, HATER YEAR OCTOBER 1969 TO SEPTEM )ER 1970 DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUC 1 0 0 0 6.0 10 2B 27 28 1.7 2 0 0 0 6.2 l! 1 27 27 28 1.1 3 0 0 0 1.1 6. 5 26 30 27 .71 4 0 0 .21 .71 15 26 30 26 .46 5 0 0 .20 6.4 21 21 30 26 .26 6 0 0 .18 1.2 25 31 29 28 .11 7 .04 0 .31 .71 26 31 28 28 .09 a .04 0 .13 .54 27 31 30 28 .03 9 .03 0 .10 .46 27 31 29 29 .03 10 .02 0 .37 .53 28 31 30 28 .04 11 .01 0 .29 .40 28 31 29 28 .02 12 0 0 .16 .29 2B 31 29 27 13 0 .04 .16 .32 28 31 28 26 14 0 .02 .12 .32 28 31 28 25 15 0 .05 .10 .32 31 30 27 28 16 0 .19 .10 .29 31 30 27 27 .01 17 0 .10 .10 .24 31 29 27 25 .04 18 0 .13 .05 .24 30 29 27 24 .04 19 0 .10 .04 .24 30 29 26 24 20 0 .10 .04 .17 30 29 26 24 21 0 .10 0 .16 29 29 25 24 22 0 .10 0 .16 29 29 25 25 23 0 .10 0 .16 29 29 26 23 24 0 .10 0 .11 28 29 25 20 25 0 .10 0 .10 28 28 25 18 26 0 .10 0 .10 30 28 24 17 27 0 .04 0 .16 32 29 24 13 28 0 .04 0 .16 30 28 24 9.6 29 0 .04 ..... _ .16 30 2B 25 7.0 30 0 .01 ...... 13 29 27 29 3.9 31 0 ------.10 27 2.5 TOTAL 0 .14 0 1.46 2.66 2B.1B 765. 70 894 B16 697.0 4.64 MEAN 0 .005 0 .047 .095 .91 25 .5 28.8 27.2 22.5 .15 MAX 0 .04 0 .19 .37 6.4 32 31 30 29 1.7 MIN 0000 0 .10 . 10 21 24 2.5 0 AC-FT 0 .3 0 2.9 5.3 56 1,520 1,770 1,620 1.380 9.2 UTR YR ,370 SWEETWATER RIVER BASIN 11014850 JAPACHA CREEK NEAR DESCANSO, CALIF. LOCATION.--Lat 32°55'04", long 116°34'14", San Diego C State Highway 79, 5.1 miles northeast of Descanso. DRAINAGE AREA.--2.40 sq mi. PERIOD OF RECORD.--Annual rs 1962-64. October 1964 to September 1967. Annual years 1968-70. GAGE.--Crest-sta ge gage. Sept? 30, 1967, water-stageP recorder. P EXTREMES. --Maxim in feet) for the water years 1966-70 are c Wtr yr Date Discha rge G.H. Date Discharge 1966 Nov. 23 965 3 5 3.80 Long periods 0 1967 Dec. 6 966 17 J 8.56 do. 0 1968 Dec. 18 967 2.4 2.37 - 1969 Feb. "25 969 9 7 5.55 - 1970 Mar. 14 970 a 3 - a Estimated. Period of d M ' d' 5 cfs Dec. 6, 1966 (gage height, 8.5 6 ft), from rating curve to Oct. 18, 1 DAY OCT DEC JUN JUL AUG SEP 1 0 .10 2.2 .60 . .50 .30 .10 2 0 .10 1.6 .70 . .50 .30 .10 3 0 .10 1.4 .70 . .50 .30 .10 4 0 .10 1.2 .70 . .50 .30 .10 5 0 .10 1.1 .70 . .40 .30 .10 6 0 .10 1.0 .6 . .40 .30 .10 7 0 .10 .90 .9 . .40 .30 .10 8 0 .10 .80 .8 . .40 .30 .10 9 0 .20 .70 .4 . .40 .30 .10 10 0 .3D .60 .4 . - .40 .30 .10 11 0 .30 .60 .1 . .40 .30 .10 12 0 .30 .50 .2 . .40 .30 .10 13 0 .60 .50 .0 . .40 .20 .10 14 0 .50 .50 .0 . .40 .20 .10 15 0 .50 .50 .8 . .40 .20 .10 16 0 .50 .50 .8 . .40 .20 17 0 .40 .50 .7 . .40 .20 18 0 '.40.40 .50 .6 . .40 .20 19 0 .50 .5 . .40 .20 20 0 .40 .50 .5 .80 .40 .20 21 0 .40 .50 .5 .80 .40 .20 22 1.6 1.2 .50 .4 .80 .40 .20 23 9.8 .90 .50 .4 .80 .40 .20 24 25 2.1 .60 .40 .4 .80 .40 .20 26 .70 .60 .40 .6 .80 .40 .10 27 .40 .50 .40 .5 .70 .40 .10 28 .40 .50 .40 .5 .60 .30 .10 29 .20 3.8 .40 .60 .30 .10 30 .20 6.7 .70 .50 .30 .10 31 2.7 .60 .50 .10 TOTAL 15. 80 24.20 21.80 4 .40 34.70 12.10 6.80 L.SO 00 MEAN .53 .78 .70 .66 1.12 .40 .22 050 0 0 MAX 9.8 6.7 2.2 3.9 1.7 .50 .30 .10 00 MIN 0 .10 .40 .60 .50 .30 .10 0 00 AC-FT 31 48 43 92 69 24 13 3.0 00 SWEETWATER RIVER BASIN 11014850 JAPACHA CREEK NEAR DESCANSO, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1966 TO SEPTEMBER 1967 AY OCT NOV DEC 1 0 .10 .30 .10 30 .3 .50 2 D .10 .20 .10 .40 .2 .40 3 0 .10 .20 .10 30 .2 .40 4 c .10 .20 .30 40 .0 .40 5 6.7 .10 .20 .20 .40 .0 .40 6 76 .10 .20 .10 30 .BO .40 7 24 .10 .20 .10 30 .70 .40 3.2 9 l.B .10 .20 .10 20 .60 .40 10 1.1 .10 .20 .10 20 .70 .40 1 .70 .10 .20 .10 .40 .70 .40 2 .60 .10 .20 .10 50 .60 .40 3 .50 .10 .20 .10 0 .60 .40 4 .40 .10 .20 .60 .50 .30 5 .30 .10 .20 .30 .50 .30 6 .30 .10 .20 .20 .40 .30 7 B .20 .10 .20 .20 0 .40 .20 9 .20 .10 .20 .20 .40 .20 0 .20 .10 .20 .20 .50 .20 1 .20 .10 .20 .20 .50 .20 2 .10 .10 .20 .10 .50 .10 3 .10 .40 .20 .10 .50 .10 4 .10 .20 .10 .10 .50 .10 5 .10 .70 .10 .10 .50 .10 6 .20 .40 .10 .10 .40 .10 7 .10 .40 ;ic .10 .40 .10 B .10 .30 .10 .10.20 .50 .10 9 .10 .30 .50 0 0 .10 .20 ______.10 .50 0 1 . 10 .30 .20 .50 TAL 0 0 AN 0 0 3.80 .17 .19 .16 1 31 .63 .26 0 0 0 X 0 0 76 .70 .30 .60 >.4 1.3 .50 0 0 0 N 000 .10 .10 .10 20 .40 0 0 C 0 C-FT 0 0 233 11 10 9.7 78 39 16 0 0 0 SWEETWATER RIVER BASIN 31 11015000 SWEETWATER RIVER NEAR DESCANSO, CALIF. LOCATION.--Lat 32°50'05", long 116°37'20", in NW^SESj sec.25, T.15 S., R.3 E., San Diego County, on right bank at DRAINAGE AREA.--45.5 sq mi. ;r 1956 to September 1970. GAGE. --Water-stage recorder on river; water-st; is 3,269.24 various da turns. AVERAGE DISCHARGE. --Creek only, 36 years, 11.1 cfs (8,040 acre--ft per year); median of yearly megin discharge: (2,960 acre-ft per year); median of yearly inean discharges, 1.0 cfs (720 acre-ft per year). EXTREMES.--Ma (discharge in feet pe econd, gage height in feet). 00 River only Combined Time Discharge G.H. Date Di icharge 1965 0700 *1,230 6.53 Nov. 23, 1965 *1,230 1965 0500 700 5.70 Dec. 30, 1965 700 1966 2330 *3,890 8.93 Dec, 6, 1966 *3,890 Apr 1967 1200 125 4.34 Apr. 22, 1967 125 1967 1400 *39 4.15 Dec. 19, 1967 *39 1969 1700 1,160 6.92 Jan , 25, 1969 1,160 1969 2400 195 4.90 Feb. 6, 1969 195 1969 2300 *1,750 7.62 Feb. 25, 1969 *1,750 1969 0500 164 4.63 Mar. 1, 1969 164 1970 0330 *48 4.02 Mar. 5, 1970 16, 1927 (gage height, 13.2 ft, from ement of peak flow; no flow for many 6, 1966; no flow for many days in each REMARKS.--Re REVISIONS (WATER YEARS).--WSP 1315-B: 1922(M). WSP 1928: Drainage DISCHARGE, IN CUBIC FEET PER SECOND, NATER YEAR DC DAY OCT 0 1.1 91 11 8.4 .4 2. C 1.0 59 9.2 14 .0 0 .80 41 9.2 12 .2 .10 0 .80 30 7.3 12 .7 . .10 0 .70 24 6.4 {2 .2 .90 .10 0 .70 21 13 12 .2 .90 0 .50 IB 58 12 .2 .90 0 .$0 16 40 12 .2 1.1 0 .8 14 33 10 .2 1.4 0 .8 12 39 9.5 .2 1.4 0 f j 12 37 B.B .5 1.3 0 .1 10 33 B.O .5 .90 0 .8 8.0 32 7.3 .2 .80 o .a 6.7 28 7.3 .0 . .70 D .8 6.4 27 6.4 .4 . .40 0 .0 6.7 24 5.8 .2 0 .8 7.6 22 5.0 .8 0 .i B.4 20 4.7 .5 . 0 .0 B.B 18 4.2 .0 0 .8 11 IB 3.8 .5 o .8 10 14 3.4 .5 67 1 B.4 12 3.2 .2 548 1 8.4 10 3.1 .2 . 15 7.6 8.8 13 .2 33 7.0 B.4 19 .2 36 . 7.0 11 16 .2 10 f B.4 12 14 .2 5.5 . B.O B.B 10 .1 3.4 2 6.7 B.4 .7 2.1 33 14 7.3 .7 . 31 11 16 6.7 TOTAL 720.0 577.70 513.1 570.1 279.3 12 .3 6 . MEAN 24.0 18.6 16.6 20.4 9.01 4 OB 19 MAX 548 331 91 58 19 4 . MIN 0 .50 6.4 6.4 3.1 .7 . AC-FT 1,430 1,150 1,020 1,130 554 243 122 CAL YR 1965 TOTA SWEETWATER RIVER BASIN 11015000 SWEETWATER RIVER NEAR DESCANSO, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1966 TO SEPTEMBER 1967 MAR APR MAY JUN JUL I 0 .20 3.6 5.8 1.7 6.4 10 8.8 .5 2 0 .20 3.4 5.5 1.7 6.7 8.8 7.3 .3 3 0 .BO 3.1 5.2 1.8 5.8 8.4 6.0 .1 0 71 3.2 4.7 4.7 6.4 7.0 5.8 .1 7 .50 681 2.9 4.5 3.4 4.5 5.2 5.5 .1 8 9 .20 25 2.7 4.2 3.1 5.5 .90 10 .20 15 2.7 4.2 3.1 4.7 5.0 5.5 .90 2 .10 2.9 3.B 3.4 15 5.5 5.5 1.1 3 .10 2.7 3.8 4.0 14 5.5 5.B 1.1 4 .10 2.4 3.6 14 17 5.5 5.5 .BO 5 .10 2.1 3.6 8.0 IB 5.5 5.0 .70 7 .10 2.1 3.1 5.0 12 5.5 4.0 .50 S .10 2.1 3.4 4.7 12 5.5 3.8 .40 9 .10 . ) 2.1 3.6 4.2 24 5.5 3.4 .40 0 .10 2.2 3.1 3.8 28 5.5 3.2 .40 1 .10 2.2 2.7 3.8 24 5.5 2.9 .20 2 .10 4.2 2.1 3.6 84 5.5 2.6 .20 3 .10 12 3.1 3.6 53 6.7 2.6 .20 4 .1C 8.4 2.7 3.4 39 B.O 2.4 .20 5 .10 17 3.1 3.4 27 7.0 2.4 .20 6 .10 10 2.7 3.6 20 7.3 2.1 .20 7 .10 7.6 2.0 3.6 18 7.3 2.0 .20 8 .10 7.0 1.8 3.4 16 8.0 2.0 .20 9 .10 6.0 4.7 16 8. 8 2.1 .20 0 .10 5.5 4.0 13 8.8 2.1 .20 TAL 131.1 19.90 2.10 AN .068 X 0 .50 1,620 17 5.8 14 84 10 8.8 1.5 .50 IN C 0 .20 2.1 1.8 C-FT ),250 DISCHARGE, IN CUBIC FEET PER SECOND, HATER YEAR OCTOBER 1967 TO SEPTEMBER 1968 NOV DEC JAN FES MAR APR MAY JUN JUL 1 0 .20 .60 .1 .0 .4 .1 .90 .40 2 0 .20 .40 .1 .0 .4 .7 .90 .40 3 0 .20 .40 .1 .9 ^ .7 .90 .40 4 0 .20 .40^ .1 .8 .4 .5 .90 .30 5 0 .20 .40 .0 .7 .5 .1 .90 .30 6 C .20 .40 .9 .7 .6 .0 .90 .30 7 0 .20 .40 .9 .7 .7 .9 .90 .40 8 0 .20 .40 .8 .8 .3 .8 .90 .40 9 0 .20 .20 .8 .9 .6 .7 .90 .40 10 0 .20 .20 .8 .9 .5 .7 .90 .30 11 .10 .20 .30 .a .8 .0 .6 1.0 .30 12 .10 .20 .30 .8 .8 .7 .5 1.6 .20 13 .10 .20 .40 .8 .1 .7 .0 2.5 .20 14 .10 .20 .40 .8 .0 .9 .3 2.0 .20 15 .10 .20 .40 .9 .8 9 .3 1.6 .20 16 0 .20 .60 .9 .6 B 9 .3 1.5 .10 17 0 .20 1.2 .9 .4 , 9 .4 1.4 .10 IB 0 .20 2.7 .9 .3 .9 .4 1.2 .10 19 0 .40 19 .9 .1 .9 .4 l.l .10 20 .10 .30 4.4 .9 .0 .7 .4 1.0 .10 21 .10 .50 2.7 .9 .0 . 5 .4 1.0 .10 22 .10 .70 2.4 .9 .0 .0 .3 .90 .10 23 .10 .60 2.4 .8 .90 .6 .2 .90 .10 24 .10 .40 2.4 .7 .1 .4 .1 .80 .10 25 .10 .30 2.4 .8 .1 .4 .1 .80 .10 26 .20 .60 2.4 .9 .1 .3 .0 .70 .10 27 .20 .80 2.4 .2 .2 .2 .0 .70 .10 28 .20 .60 2.2 .7 .4 .1 .0 .60 .10 29 .20 .50 2.2 .5 .3 .0 .90 .60 0 30 .20 .50 2.2 3 __ .0 .90 .50 0 31 .20 2.1 . 2 " .90 .50 TOTAL- 2.30 9.80 59.30 6 .1 4 MAX .20 .80 19 .7 2.1 3.8 4.7 2.5 .40 MIN 0 .20 .20 .7 .90 .90 .90 .50 0 AC-FT 4.6 19 118 21 88 129 97 63 12 SWEETWATER RIVER BASIN 11015000 SWEETWATER RIVER NEAR DESCANSO, CALIF.--CONTINUED DISCHARGE, IN CUBIC FECT PER SECOND, WATER YEAR OCTOBER 1968 TO SEPTEMBER 1969 NOV DEC JAN FE8 MAR APR MAY JUN JUL 0 .25 .56 14 132 35 16 8.4 .80 0 .19 .56 12 100 34 16 8.0 .90 0 .17 .42 10 80 40 16 7.6 1.0 6 0 .17 .51 62 58 37 21 7.4 1.2 0 7 0 .17 .51 92 54 34 21 7.2 1.1 0 a 0 .19 .51 49 50 31 20 7.1 .20 0 9 0 .31- .51 42 54 29 17 6.8 .50 .04 ID 0 .25 .34 35 79 28 16 6.8 .30 .27 11 0 .28 .38 32 82 28 15 6.7 .30 .18 12 0 .25 .51 31 81 26 14 6.4 .81 0 13 0 .22 .56 29 93 26 12 5.1 .81 0 14 0 .19 4.9 27 82 24 11 4.2 .34 0 15 .09 .19 2.5 26 76 24 10 3.4 .17 0 16 0 .25 1.4 29 75 24 9.9 3.4 .30 0 17 .09 .51 l.l 24 69 22 9.9 3.4 .23 0 18 .11 .34 1.0 28 66 21 9.6 3.2 .rt 0 19 .11 .22 1.4 39 63 21 9.2 2.9 .30 0 20 .09 .61 1.8 40 5B 20 8.6 2.9 .55 0 21 .09 .66 8.2 39 64 19 8.8 2.9 .34 0 22 .07 .56 2.5 43 74 19 9.0 2.9 .20 0 23 .05 .42 2.0 74 58 18 8.6 2.4 .17 0 24 .C5 .28 21 385 51 18 9.1 1.8 .12 0 25 .05 .42 382 698 48 18 9.0 2.1 .05 0 26 .05 1.7 163 607 46 17 8.5 2.0 .17 0 27 .09 1.0 119 178 46 16 8.2 2.0 .34 0 28 .19 .84 46 122 44 16 8.5 2.0 .17 0 29 .17 .72 32 42 16 8.3 1.8 .05 0 30 .19 .66 21 40 16 7.9 1.4 .03 0 31 .61 18 39 .01 0 TOTAL 0 1.49 13.13 750 13.61 .84 MEAN 0 .050 MAX 0 .19 1.7 382 698 132 40 21 8.4 1.2 .27 KIN 0 0 .17 .34 9.2 39 16 7.9 1.4 .01 0 1.7 DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1969 TO SEPTEMBER 1970 OCT NOV DEC JAN FEB MAR APR MAY JUN JUL .12 .97 .61 .44 20 .81 1.4 .23 .12 .74 .61 .49 26 .89 1.8 .03 .27 .«! .61 .49 12 1.2 1.6 .03 .44 .74 .61 .61 5 1.2 1.2 .03 .23 .61 .49 .49 2 1.0 1.0 -Cl .30 .61 .44 .49 .74 1.0 .02 .97 .49 .44 .61 .89 1.0 .01 .74 .49 .44 .67 .89 1.0 .01 .74 .97 .49 .34 .89 1.2 .03 1.0 »67 .97 1.0 .89 1.2 .05 .74 .61 .89 1.0 1.0 .74 .05 .27 .61 .55 .89 .55 .67 .55 .04 .61 .55 .89 .67 .44 .55 .04 .89 1.2 .49 .97 .39 .81 .34 .05 .74 .44 1.4 .44 .34 .02 .67 .81 .49 .89 .55 .39 .61 .55 .61 .81 .55 .30 .39 .39 .61 .61 .55 .30 .23 .74 .61 .39 .55 9 .27 .20 .55 .67 .49 .67 .44 .81 .34 .55 .34 .61 .55 .61 .74 .39 .30 .81 .67 .34 .67 .89 .44 .15 .81 .67 .49 7.6 .97 .49 .44 .89 .61 .49 1.0 .39 . l > TOTAL MEAN .026 MAX .23 MIN 0 AC-FT 282 1.5 HIN 0 11015000 SWEETWATER RIVER NEAR DESCANSO, CALIF.--CONTINUED COMBINED DISCHARGE, IN CUBIC FEET PER SECOND, OF SWEETWATER RIVER AND SWEETWATER RIVER DIVERSION, NEAR DESCANSO, CALIF., WATER YEAR OCTOBER 1965 TO SEPTEMBER 1966 DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 0 1.1 91 11 8.4 6.4 1.4 .10 2 c 1.0 59 9.2 14 . 6.0 1.3 .10 3 0 .80 41 9.2 12 5.2 1.1 .10 4 0 .80 30 7.3 12 4.7 . 1.0 .10 5 0 .70 24 6.4 12 4.2 .90 .10 6 0 .70 21 13 12 4.2 .90 .10 7 c .50 18 58 12 4.2 .90 0 8 c .50 16 40 12 4.2 1.1 0 9 0 1.8 14 33 10 4.3 ; . 1.4 0 10 0 1.8 12 39 9.5 4.5 1.4 0 11 0 2.1 12 37 4.7 1.3 0 12 0 2.1 10 33 8.0 4.6 .90 0 13 c 3.8 8.0 32 7.3 4.3 .80 . 0 1* 0 5.8 6.7 28 7.3 4.1 .70 0 15 0 5.8 6.4 27 6.4 3.5 .40 0 16 0 8.0 6.7 24 5.8 3.3 .40 0 17 0 5.8 7.6 22 5.0 3.9 .30 0 18 0 4.5 8.4 20 4.7 4.5 .30 0 19 {} 4.0 8.8 18 4.2 5.1 . .70 0 20 0 3.8 11 18 3.8 4.6 . .40 0 21 0 3. 8 10 14 3.4 4.6 . .20 0 22 67 11 8.4 12 3.2 4.2 . .20 0 23 548 13 8.4 10 3.1 3.4 B .20 0 24 15 7.3 7.6 a. 8 13 3.4 .20 0 25 33 6.0 7.0 8.4 19 3.4 .20 0 26 36 5.0 7.0 11 16 3.4 . .20 0 27 10 4.2 8.4 12 14 3.4 .20 0 28 5.5 4.0 8.0 8.8 10 3.3 .10 0 29 3.4 26 6.7 8.4 2.9 .10 0 2.1 331 14 7.3 3.0 .10 0 31 111 16 6.7 0 TOTAL .60 0 0 MEAN .64 .019 0 0 ^ MAX 0 548 331 91 58 19 6.4 1.4 .10 0 0 MIN 0 0 .50 6.4 6.4 3.1 2.9 .10 0 0 0 AC-FT 0 1,430 1,150 ItUlU l«13U 3^t 249 38 1.2 0 0 IN 0 AC-FT 5, 690 COMBINED DISCHARGE, IN CU£ 1C FEET PER SECOND , OF SWEETWATER RIVER AND SWEETWATER RIVER DIVERSION, NEAR DESCANSO, CALIF. , WATER YEAR OCTOBER 1 966 TO SEPTEMBER 1967 DAY OCT NOV 1 0 .20 3.6 5.8 1.7 6.4 10 8.8 1.5 .10 2 0 .20 3.4 5.5 1.7 6.7 7.3 1.3 .10 3 0 .80 3.1 5.2 1.8 5.8 8^4 6.0 l.l .10 4 0 .90 3.2 5.0 6.2 5.5 7.6 5.8 1.0 .10 5 C 71 3.2 4.7 4.7 6.4 7.0 5.8 1.1 .10 6 .1C lt62Q 3.1 4.5 3.4 5.2 6.7 6.0 1.1 .10 7 .50 681 1.1 .10 8 .20 73 .90 .10 9 .20 25 2.7 4.2 3.1 3.8 4.5 5.5 .90 .10 10 .20 15 2.7 4.2 3.1 4.7 5.0 5.5 .90 .10 11 .20 12 .SO .10 12 .10 9.2 2.9 3.8 3.4 15 5.5 5.5 1.1 .10 13 .10 6.4 2.7 3.8 4.0 14 5.5 5.8 1.1 .10 1* .10 5.2 2.4 3.6 14 17 5.5 5.5 .80 .10 15 .10 4.2 2.1 3.6 8.0 18 5.5 5.0 .70 .10 16 .10 4.2 2.2 3.4 5.5 15 5.5 4.5 .50 .10 17 .10 4.2 2.1 3.1 5.0 12 5.5 4.0 .50 0 18 .10 4.2 2.1 3.4 4.7 12 5.5 3.8 .40 0 19 .10 4.0 2.1 3.6 4.2 24 5.5 3.4 .40 0 20 .10 4.0 2.2 3.1 3.8 28 5.5 3.2 .40 0 21 .10 4.0 2.2 2.7 3.8 24 5.5 2.9 .20 0 22 .10 4.0 4.2 2.1 3.6 84 5.5 2.6 .20 0 23 .10 4.0 12 3.1 3.6 53 6.7 2.6 .20 .50 24 .10 4.0 8.4 2.7 3.4 39 8.0 2.4 .20 0 25 .10 4.0 17 3.1 3.4 27 7.0 2.4 .20 0 26 .10 4.2 10 2.7 3.6 20 7.3 2.1 .20 0 27 .10 4.2 7.6 2.0 3.6 18 7.3 2.0 .20 0 28 .10 4.2 7.0 1.8 3.4 16 8.0 2.0 .20 0 29 .10 4.0 6.0 _ __ 4.7 16 8.8 2.1 .20 0 30 .10 4.2 5.5 - 4.0 13 8.8 2.1 .20 0 31 4.0 6.4 4.5 8.8 .20 0 TOTAL 0 3.30 MEAN 0 .11 .64 .068 MAX 0 .50 1,620 17 5.8 14 84 10 8.8 1.5 .50 MIN 0 0 .20 2.1 1.8 1.7 3.8 4.5 2.0 .20 0 AC-FT 0 6.6 5,140 279 205 257 1,050 406 260 39 4.2 HTR YR 1967 TOTAL 3.851.80 MEAN 10.6 MAX 1,620 MIN 0 AC-FT 7,640 SWEETKATER RIVER BASIN 11015000 SKEETKATER RIVER NEAR DESCANSO, CALIF.--CONTINUED COMBINED DISCHARGE, IN CUBIC FEET PER SECOND, OF SWEETWATER RIVER AND SWEETWATER RIVER DIVERSION, NEAR DESCANSO, CALIF., WATER YEAR OCTOBER 1967 TO SEPTEMBER 1968 JY JUN JUL AUG SEP 1 0 .20 .60 2.3 .1 1.5 1.1 1. .50 2 C .20 .40 2.3 .1 1.5 5.1 1. .40 3 0 .20 .40 2.3 .0 1.5 4.0 1. .40 4 0 .20 .40 2.3 .9 1.5 2.9 1. .30 5 0 .20 .40 2.2 .8 1.6 2.4 1. .30 6 C .20 .40 2.1 .7 1.7 2.2 1. .30 7 0 .20 .40 2.1 .7 1.8 2.1 1. .40 8 0 .20 .50 2.0 .8 3.6 1.9 1. .40 9 C .20 .60 2.0 .9 4.0 .8 1. .40 10 0 .20 .70 2.0 .9 3.6 .8 1. .30 11 .10 .20 .50 2.0 .8 3.1 .7 1. .30 12 .10 .20 .50 2.0 .8 2.8 .8 1. .20 13 .10 .20 .60 2.0 .1 2.8 .4 2. .20 14 .10 .20 .60 1.9 .0 3.0 .7 2. .20 15 .10 .20 .60 2.0 .8 3.0 .7 2. .20 16 0 .20 .80 2.0 .6 3.0 .7 1. .10 17 0 .20 1.4 2.0 .4 3.0 .8 1. .10 18 0 .20 2.9 2.0 .3 2.9 .8 1. .10 19 0 .50 19 2.0 .1 2.9 .8 1. .10 20 .10 .30 4.6 2.0 .0 ' 2.7 .8 1. .10 21 .10 .50 2.9 2.0 .1 2.5 .8 1. .10 22 .10 .80 2.5 2.0 .1 2.0 .7 1. .10 23 .10 .60 2.4 1.9 .0 1.6 .6 1. .10 24 .10 .40 2.5 1.8 .2 1.4 .5 1. .10 25 .10 .30 2.6 1.9 .4 1.4 .5 1. .10 26 .20 .70 2.6 2.0 .3 1.3 1.4 .90 .10 27 .20 .80 2.6 2.3 .4 1.2 1.4 0 .10 28 .20 .60 2.4 2.8 .6 1.1 1.4 .1 0 .10 29 .20 .50 2.4 2.6 .4 1.0 1.2 ro o 30 .20 .50 2.4 2.4 1.0 1.2 .60 0 0 0 MAX .20 .80 19 2.8 2.1 4.0 5.1 2.9 .50 0 0 MIN 0 .20 .40 1.8 1.0 .90 1.1 .60 0 0 0 0 CAL YR 1967 TOTAL 1 335 30 MEAN 3 66 MAX 84 MIN 0 AC FT 2 650 COMBINED DISCHARGE, IN CUBIC FEET PER SECOND, OF SWEETWATER RIVER AND SWEETWATER RIVER DIVERSION, NEAR DESCANSO, CALIF., WATER YEAR OCTOBER 1968 TO SEPTEMBER 1969 AUG SEP 1 0 .25 .57 14 132 36 16 8.4 1.8 .82 .10 2 0 .24 .57 12 100 35 16 8.3 1.7 .59 .13 3 .05 .21 .57 10 80 40 16 8.2 1.6 .31 .15 8.0 1.4 .38 .15 5 0 .27 .56 13 61 34 19 7.8 1.4 .45 .16 6 .06 .24 .55 62 58 37 21 .6 1.3 .47 .17 7 .08 .24 .55 92 54 35 21 .4 1.2 .49 .16 8 .01 .24 .55 49 50 31 20 .3 1.1 .54 .13 9 0 .34 .59 42 54 29 18 .2 .98 .32 .10 10 0 .33 .54 35 79 29 17 .0 1.0 .31 .08 11 0 .40 .46 32 82 28 15 .0 .98 .33 .08 12 0 .35 . 2 31 81 26 14 .7 .83 .30 .11 13 0 .32 . 6 29 93 26 12 .4 .83 .30 .24 14 0 .31 . 27 82 24 11 .4 1.0 .28 .22 15 .09 .31 . 26 76 25 10 .6 1.2 .31 .30 16 0 .33 . 29 75 24 10 17 .09 .51 . 24 69 22 .08 18 .11 .40 . 28 66 21 .6 1.1 .24 .25 19 .11 .38 . 39 63 21 8 .3 .77 .24 .25 20 .09 .72 .40 58 20 6 .1 .57 .20 .25 21 .09 .66 . 39 64 19 5 .9 .82 .17 .13 22 .09 .56 . 43 74 20 4 .9 .95 .12 .16 23 .13 .51 . 74 58 18 3 .8 .89 .10 .28 24 .13 .43 2 385 51 18 2 .8 .89 .12 .24 25 .14 .50 38 698 48 18 1 .8 1.0 .12 .20 26 .14 1.8 16 607 46 17 9. 0 .6 .56 .11 .18 27 .12 1.0 11 178 46 16 8. 9 .4 .35 .10 .17 28 .19 .86 4 122 45 16 8. 8 .0 .64 .12 .16 29 .17 .74 32 42 17 8. 7 .8 .82 .12 .17 30 .19 .68 21 40 17 8. 7 .8 .85 .12 .17 .83 .11 8.94 5.19 EAN 0 .072 .49 27.0 99.6 65.6 25.3 12. 7 4 88 1.01 .29 .17 AX 0 .19 1.8 382 698 132 40 2 1 .4 1.8 .82 .30 IN 00 .21 .46 9.2 39 16 8.4 .8 .35 .10 .08 90 62 18 10 SWEETWATER RIVER BASIN 11015000 SWEETWATER RIVER NEAR DESCANSO, CALIF.--CONTINUED COMBINED DISCHARGE, IN CUBIC FEET PER SECOND, OF SWEETWATER RIVER AND SWEETWATER RIVER DIVERSION, ' .01 2 .15 6 .91 .61 .69 26 .8 .35 .05 0 .01 3 .17 7 .89 .61 .69 12 .6 .35 .0 0 .01 4 .17 6 .64 .62 .70 % 5 .6 .37 .0 0 .01 .01 6 .11 I .62 .59 .64 6 .3 .34 .0 0 7 .16 9 .59 .59 .65 .3 .31 .0 0 6 .17 6 .62 .59 .70 .3 .33 .05 0 9 .21 6 1.0 .64 .70 \ .2 .35 .04 0 10 .30 1. .70 1.1 1.2 .2 .43 .04 ' 0 11 .12 6 .64 .90 1.2 .2 .41 .03 0 12 .43 9 .56 1.0 .94 .0 .32 .03 .06 4 .26 3 .56 .90 .75 .68 .26 .03 .03 5 .30 1 .58 .94 .75 .62 .31 .02 .04 6 .30 1 . .59 1.1 .75 .70 .29 .02 .03 7 .30 6 .62 1.4 .75 .66 .24 .02 .03 6 .49 7 .62 1.0 .75 .64 .19 .02 .02 9 .67 15 .61 .90 .75 .73 .16 .02 .03 1 .59 >1 .62 .77 .75 . .62 .15 .02 .02 3 .55 4 .66 .69 .74 .56 .09 .02 .01 4 .55 .1 3 .59 .9 .66 ; .56 .06 .02 .02 6 .55 .1 >6 .62 . 7 ..67 .57 .06 .02 .03 7 .55 4 .66 . 6 .67 .60 .06 .01 .02 8 .50 3 .66 . 0 7.6 .64 .06 .01 .02 .OB .003 AX .67 1 2 1.0 1.4 7.6 >6 .( 2.0 .43 .05 .14 .01 IN .11 11015500 SWEETWATER RIVER AT LOVELAND DAM, NEAR ALPINE, CALIF. DRAINAGE AREA. --98. 1 sq mi. PERIOD OF RECORD. --October 1944 to September 1966 (discontinued). GAGE. --Nonrecording gage. Datum of gage is 1,215 ft above mean sea level. AVERAGE DISCHARGE. --22 years, 4.50 cfs (3,260 acre-ft per year); median of yearly mean discharges, 1. (900 acre-ft per year). REMARKS.--Records of discharge represent all water reaching Loveland Res , including precipitation on the id evapora- using a coefficient of 0.66, excepting the period October 1960 to June 1963'when the mass-transfer method i 'as used, and dated April 1946. Loveland Dam was completed in July 1945; storage began in March 1945. Capacity of reser voir at spillway level (gage height, 140.00 ft), 25,387 acre-ft. Dead storage, 125 acre-ft below lowest out- eight is ed. COOPERATION.--Records of stage, draft, and spill plus leakage furnished by California-American Water Co. REVISIONS (WATER YEARS).--WSP 1091: 1945-46. WSP 1928: Drainage area. MONTHLY DISCHARGE, WATER YEAR OCTOBER 1965 TO SEPTEMBER 1966 MONTH ELEVA- CONTENTS CHANGE DRAFT EVAPO- 5P ILL DISCHARGE TION (ACRE- IN (ACRE- RATION P LUS (ACRE (FEET)t FEET) AGE FEET) (ACRE- FEET) (AC »E- LAKE LOVELAND FEET) FE ET) ,259.91 1,980 -37 0 31 0 ,259.47 1,9*3 +438 0 13 0 45 ,264.20 2,381 +586 0 13 0 59 +1,601 0 271 0 1,67 ,269.42 2,967 +616 0 19 0 63 ,274.10 3,563 +1,217 0 23 0 1,24 ,282.16 4,600 +663 0 40 0 70 APRI L ,266.08 5,463 -5,264 5,516 31 0 26 ,218.40 179 +184 0 7 0 19 ,228.37 363 +20 0 9 0 2 ,229.24 363 +8 0 10 0 1 ,229.54 391 -4 0 11 0 ,229.40 387 +5 0 9 0 1 -1,586 5,516 216 0 4,144 t ELEVATION ON FIRST DAY OF MONTH. NOTE. FOR MONTHS WHEN INFLOW TO THE LAKR WAS^SMALL AND OTHER C UANTITIES MERE LARGE, DISCORDANT FIGURES OF DIS- LARGER QUANTITIES, 'WHICH ARE NOT SUSCEPTIBLE TO MEASUREMENT WITH A PRECISION NECESSARY TO PRODUCE A FINAL ANSWER WITHIN DESIRABLE LIMITS OF ACCURACY. SWEETWATER RIVER BASIN 11016500 SWEETWATER RIVER AT SWEETWATER DAM, CALIF. DRAINAGE AREA.--182 sq mi. PERIOD OF RECORD.--October 1887 to September 1966 (discontinued). GAGE.--Nonrecording gage. Datum of gage is 149.12 ft above mean sea level. REMARKS.--Records of total inflow represent all water reacning Sweetwater Reservoir, including precipitation o reservoir and supplemental Colorado River water delivered through aqueduct of San Diego County Water Author ity. Total inflow computed on basis of records of storage, release (draft), spill, leakage, and evaporatio Records of net inflow exclude supplemental water from Colorado River. Monthly evaporation from reservoir s face computed on basis of evaporation from Colorado land pan using coefficient of 0.80. Area and capacity tables for reservoir are dated December 1947. Capacity of reservoir at spillway level (gage height, 89.70 ft), 27,690 acre-ft. Dead storage, 4 acre-ft below lowest outlet at gage height 19.7 ft, included in these records. Diversions for irrigation. Regulation at Loveland Reservoir (see station 11015500). Water released as required for irrigation and domestic use in Chula Vista, National City, and contiguous areas. COOPERATION.--Records furnished by California-American Water Co. REVISIONS (WATER YEARS).--WSP 811: 1928-32. WSP 1091: 1944-46. WSP 1928: Drainage area. MONTHLY NET INFLOW, WATER YEAR OCTOBER 1965 TO SEPTEMBER 1966 MONTH GAGE NET HEIGHT (ACRE- IN (ACRE- SWEETWATER RESERVOIR FEET) FEET) (ACRE- FEET) 0 163 71 31 2,379 + 559 51 32 0 642 102 5 63 2', 938 +496 277 32 0 805 95 7 +960 1,490 1,017 0 3,467 1,811 1,6 3,434 -281 576 47 0 342 152 1 48 3,153 +13 390 39 0 442 90 3 53 3,166 -367 505 75 0 213 99 1 07 2,799 + 549 504 105 0 1,158 82 1,0 23 3,348 -494 621 98 0 225 184 29 2,854 -424 525 128 0 229 178 53 2,430 -39 79 143 0 183 145 36 2,391 -12 10 145 0 143 119 31 2,379 41 121 0 119 93 -336 3,918 1,082 0 4,664 1,410 3,25 t ELEVATION ON FIRST DAY OF MONTH. NOTE. FOR MONTHS WHEN INFLOW TO THE RESERVOIR WAS SMALL AND OTHER OUANTITIES WERE LARGE, DISCORDANT FIGURES OF NET INFLOW MAY APPEAR. THIS ARISES PRIMARILY FROM THE DIFFICULTY OF COMPUTING NET INFLOW AS THE RESIDUAL OF SEVERAL LARGER OUANTITIES, WHICH ARE NOT SUSCEPTIBLE TO MEASUREMENT WITH A PRECISION NECESSARY TO PRODUCE A FINAL ANSWER WITHIN DESIRABLE LIMITS OF ACCURACY. SAN DIEGO RIVER BASIN 11017000 BOULDER CREEK AT CUYAMACA RESERVOIR, NEAR JULIAN, CALIF. LOCATION.--Lat 32°S9'20", long 116°35'10 1J , \ sec.5, 1.14 S. , R.4 E., San Diego County, on outlet towe Cuyamaca Dam, 7 miles south of Julian. DRAINAGE AREA.--12.1 sq mi. AVERAGE DISCHARGE.--28 year (1935-39, 1944-68), 4.10 cfs (2,970 cre-ft per year); median of yearly mean di charges, 1.5 cfs (1,100 cre-ft per year). REMARKS.--Re ity of reservoir at spillway level (gage height, 35.4 ft), 11,540 acre-ft. No dead storage. Small d: .dded purpo apit COOPERATION.--Records of reservoir operation furnished by Helix Irri District. REVISIONS (WATER YEARS).--WSP 1011: 1943. WSP 1928: Drainage area. ~MQNTHLY RUNOFF, WATER YEARS OCTOBER 1965 TO SEPTEMBER 1968 MONTH GAGE CONTENTS CHANGE DRAFT EVAPO- SPILL DIS- HEIGHT (ACRE- IN (ACRE- RATION PLUS CHARGE (ACRE- CUYAMACA RESERVOIR FEET) FEET) 0 0 0 0 0 +667 0 0 0 667 +1,261 0 154 0 1,415 CAL YR 1965...... +1,897 1,100 309 0 3,306 JANUARY 1966...... 23.0 2,537 +609 0 79 0 688 FEBRUARY...... - 24.8 3,459 +922 0 167 0 1,089 MARCH ...... 25.2 3,685 +226 - 0 160 0 386 -1,757 1,615 0 44 -1,928 1,804 109 0 -15 JUNE...... - 0 0 0 0 0 0 AUGUST...... - 0 0 0 0 . 0 0 SEPTEMBER...... - 0 0 0 0 0 0 ...... 0 3,419- 855 0 4,274 OCTOBER.. NOVEMBER. DECEMBER. +2,447 Z.506 CAL YR 1966. 519 4,698 JANUARY 1967. 2,586 218 FEBRUARY..... 2,586 33 MARCH...... 2,684 194 APRIL...... 3,920 +1,236 1,373 MAY...... 2,270 -1,650 158 JUNE...... -2,270 -172 JULY...... AUGUST...... SEPTEMBER.... WTR YR 1967. OCTOBER.. NOVEMBER. DECEMBER. CAL YR 1967. JANUARY 1968.. 154 FEBRUARY...... 163 MARCH...... 177 APRIL...... 447 MAY...... 588 JUNE...... 569 JULY...... 542 AUGUST...... 497 SEPTEMBER..... 471 WTR YR 1968. +471 195 666 t GAGE HEIGHT AT 0800 HOURS ON LAST DAY OF MONTH. NOTE. FOR MONTHS WHEN INFLOW TO THE RESERVOIR WAS SMALL AND OTHER OUANTITIES WERE LARGE, DISCORDANT FIGURES OF DISCHARGE MAY APPEAR. THIS ARISES PRIMARILY FROM THE DIFFICULTY OF COMPUTING DISCHARGE AS THE RESIDUAL OF SEVERAL LARGER OUANTITIES, WHICH ARE NOT SUSCEPTIBLE TO MEASUREMENT WITH A PRECISION NECESSARY TO PRODUCE A FINAL ANSWER WITHIN DESIRABLE LIMITS OF ACCURACY. SAN DIEGO RIVER BASIN 11020500 SAN DIEGO RIVER AT EL CAPITAN DAM, CALIF. LOCATION.--Lat 32°53'00", long 116°48 r 2S", in NE*5SEJsNE>5 sec.7, T. 15 S., R.2 E., San Diego County, on outlet towe of El Capitan Dam, 7 miles east of Lakeside. DRAINAGE AREA.--188 sq mi. PERIOD OF RECORD.--October 1945 to September 1966 (discontinued). October 1936 to September 1945 records not GAGE.--Nonrecording gage. Datum of gage is 553.0 ft above mean s (ARKS.-- Records of tot£ ling El Capitan I n£ c ^ ns ^ e cipi Lng1 doimWBSulder6 Creek 1 frome cuyama1 rsuprp?emen1 i uppl Colorado River water, October 1957 to June 1963 and sirice October 1964 evaporatioi surface computed by mass-trans rea and capac ity spillway level (gage t let at gage height 21.0 ft, indue tly by Cuyamaca Reservoir (see station 11017000). Water is released as reqt11 red for miinicipal use and n COOPERATION.--Records computed in cooperation with city of San Diego. REVISIONS (WATER YEARS).--WSP 1091: 1946. WSP 1715: 1958-59. WSP 1928: Drainage area MONTHLY NET INFLOW, WATER YEAR OCTOBER 1965 TO SEPTEMBER 1966 MONTH GAGE CONTENTS CHANGE DRAFT EVAPO- SPILL TOTAL COLORADO NET HEIGHT (ACRE- IN (ACRE- RATION PLUS INFLOW RIVER INFLOW (FEET)t FEET) CONTENTS FEET) (ACRE- LEAKAGE (ACRE- WATER (ACRE- (ACRE- FEET) (ACRE- FEET) INCLUDED FEET) FEET) .... 97.73 15,873 +1,978 2 134 0 2,114 0 2,114 CAL YR 1965...... - - +9,180 645 2.357 0 12,182 2,697 9,485 2,177 2,177 FEBRUARY...... 4,724 2,109 2,615 MARCH...... 5,422 2,952 2,470 2,642 484 2,158 2,320 Al,680 640 37 37 JULY...... 103.92 18,984 -2,707 2 350 364 16,719 -250 6 339 WTR YR 1966...... - - +2,346 16,690 2,925 0 21,961 7,240 14,721 t GAGE HEIGHT AT 0800 HOURS ON LAST DAY OF MONTH. A RELEASE FROM CUYAMACA RESERVOIR. NOTE. FOR MONTHS WHEN INFLOW TO THE RESERVOIR WAS SMALL AND OTHER QUANTITIES WERE LARGE, DISCORDANT FIGURES OF INFLOW MAY APPEAR. THIS ARISES PRIMARILY FROM THE DIFFICULTY OF COMPUTING INFLOW AS THE RESIDUAL OF SEVERAL LARGER QUANTITIES, WHICH ARE NOT SUSCEPTIBLE TO MEASUREMENT WITH A PRECISION NECESSARY TO PRODUCE A FINAL ANSWER WITHIN DESIRABLE LIMITS DF ACCURACY. SAN DIEGO RIVER BASIN 11022500 SAN DIEGO RIVER NEAR SANTEE, CALIF. LOCATION.--Lat 32°49 T 29", long 117°03 1 17", in Ex Mission San Diego Grant, San Diego County, on right bank in DRAINAGE AREA.--377 sq mi. PERIOD OF RECORD.--May 1912 to December 1915, March 1916 to September 1970. Monthly discharge only for some periods and yearly estimates only for 1924-25, published in WSP 1315-B. map). Pr 1920, to AVERAGE DISCHARGE.--57 years, 23.1 cfs (16,740 e-ft pe ); median of yearly mean discharges, 4.8 (3,500 acre-ft per year). econd,- gage height in feet) for the water ing table: iy Wtr yr Date Discharge G.H. Date Discharge 1966 Nov. 23, 1965 1,800 7.55 Long periods 0 1967 Dec. 6, 1966 3,400 9.30 do. 0 1968 Dec. 18, 1967 626 5.24 do. 0 1969 Feb. 25, 1969 1,830 7.59 Oct. 1-8, 1968 0 1970 Mar. 5, 1970 626 5.24 Several days .01 Period of scharge, 45,40( , 16, 1927 (gage height, 18.1 ft, from f loodmark) ; no flow at times in most years, A discharg e of 70,200 cfs occiirred Jan. 27, 1916 (gajje height, 25.1 ft, site and datum then in use), based eyance computation. RE MARKS. --Record REVISIONS (WATER YEARS).--WSP 1565: 1955-56. WSP 1635: 1922, 1926(M), 1927. WSP 1928: Drainage area. DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1965 TO SEPTEMBER 1966 DAY 1 0 1 57 12 7. 2.9 .70 2 0 .4 3B 8.0 9. 2.7 .60 3 0 .5 31 6.4 8. 3.5 .60 4 G .9 26 6.3 6. 3.2 .60 5 0 .7 20 5.5 5. 2.2 .60 6 0 .5 17 101 5.7 2.2 .80 J 0 .9 16 96 6.6 2.8 .90 a 0 .1 14 57 5.9 2.5 1.0 9 0 37 12 26 6.4 2.3 1.1 10 0 39 11 25 5.9 2.3 1.1 11 0 190 11 31 5.5 2.2 .70 12 0 90 10 18 5.2 2.3 .90 13 0 158 8.6 17 5.0 2.0 .80 l*> 0 356 8.4 15 5.4 1.7 .80 15 0 227 7.3 13 4.0 1.3 .90 16 2* 357 6.9 12 3.8 1.2 1.3 17 78 163 8.4 11 4.6 1.6 1.1 IB 27 84 6.8 11 .6 2.0 1.1 19 10 57 6.4 9.7 .2 1.4 .80 20 4.3 45 16 8.9 .1 .70 .70 21 2.8 35 7.6 9.0 .9 1.1 .50 .50 22 130 70 5.9 8.3 .1 .90 .30 .30 23 872 40 5.8 T.8 4.6 .80 .60 .20 2* 1*7 30 5.5 7.4 3.5 1.2 .80 .10 25 110 25 $.8 7.4 $.0 1.1 .70 26 57 19 5.5 8.2 3.9 .50 .60 27 36 16 14 8.3 4.1 .70 .90 28 27 15 9.4 7.4 4.4 .80 .50 29 20 30 5.0 4.2 .70 .20 30 16 113 31 __-. » 4.5 .60 .10 31 _____ 39 44 _____ 3.5 _____ .50 TOTAL 0 1,561.1 2,988.0 471.3 553.6 160.7 51.60 22.80 MEAN 0 52.0 96.4 15.2 19.8 5.18 1.72 .74 MAX 0 872 392 57 101 9.4 3.5 1.3 KIN 0 0 5.9 5.0 5.5 3.5 .50 .10 C»l YR 1965 TOTAL 5,393. 00 MEAN 14.8 MAX 672 KIN 0 AC-FT 10,700 ,530 SAN DIEGO RIVER BASIN 11022500 SAN DIEGO RIVER NEAR SANTEE, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1966 TO SEPTEMBER 1967 DAY OCT NOV DEC JUN JUL 1 0 2.1 8.1 10 3.7 17 4.4 .80 2 0 .40 7.3 9.5 3.7 11 4.1 .90 3 0 .30 .80 4 0 21 6.2 7.9 4.4 5.8 3.3 l.D 5 0 383 1.2 6 0 1 ,040 6.1 4.7 4.6 6.2 3.2 1.2 T 0 554 8 22 122 2.9 1.3 9 2.7 53 5.4 5.1 3.9 4.6 2.8 1.0 10 .80 35 11 .50 25 5.1 5.4 3.6 56 2.6 .80 12 .50 19 5.0 5.5 3.7 54 2.6 1.0 13 .70 15 5.0 5.8 3.9 13 2.4 .80 14 1.1 13 5.0 5.7 20 7.5 2.2 1.2 15 1.1 12 5.3 5.9 7.0 6.5 2.1 1.6 16 1.1 10 17 18 19 1.0 .9 3.9 4.B 5.0 21 2.1 l.B 20 1.1 .5 1.9 1.6 21 1.2 .7 2.5 4.9 5.0 8.2 1.5 1.0 22 1.4 .4 19 4.5 5.0 72 1.4 1.3 23 2.9 .9 200 4.3 4.9 13 1.0 1.0 24 3.6 .4 18 4.4 4.8 8.9 1.3 .90 25 3.0 .1 .60 26 2.7 .1 24 4.4 4.6 .1 .60 .40 27 2.3 .1 16 4.5 4.6 .5 .40 .30 28 3.1 .1 13 4.4 4.2 .2 .30 .20 29 3.7 .1 13 ««__ 5.4 .4 .80 .20 30 2.9 .1 11 5.1 .3 .80 .10 31 .3 .80 TOTAL 0 61.50 2 ,407.00 568.4 157.9 162.0 411.5 65.00 29.50 0 MEAN 0 2.05 77.6 18.3 5.64 5.23 13.7 2.10 .98 0 MAX 0 22 1,040 200 10 20 72 4.4 1.8 0 MIN 0 0 .30 2.5 4.3 3.6 4.3 .30 .10 0 AC-FT 0 122 4,770 1,130 313 321 816 129 59 0 MTR YR 1967 TOTAL 3,862.80 MEAN 10.6 MAX 1,040 MIN 0 AC-FT 7,660 DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1967 TO SEPTEMBER 1968 DAY DCT NOV DEC JAN FEB MAR APR MAY JUN JUL 1 D 4.5 2.4 .0 1.9 .34 .67 .47 .03 2 0 2.6 3.0 .0 1.6 35 .59 .34 .03 3 0 2.2 2.3 .1 1.8 6.0 .65 .39 .03 4 0 2.1 1.7 .03 5 0 1.8 1.5 .1 1.9 2.7 .49 .32 .03 6 0 1.6 1.2 .8 1.7 2.2 .55 .18 .03 7 .01 1.5 1.0 .5 1.5 1.8 .73 .17 .03 8 .01 1.6 1.4 .2 45 1.7 .61 .16 .03 9 .01 l.B 1.5 .0 12 1.3 .64 .15 .03 10 .01 1.5 1.6 . 1 5.0 .53 1.1 .15 .03 11 .01 1.4 2.8 .1 4.3 .54 1.0 .14 .03 12 .01 1.4 2.7 .6 3.6 .70 .93 .13 .02 13 .01 1.3 2.1 .8 3.1 .71 2.0 .11 .02 14 .01 1.3 1.6 .1 3.7 .75 1.6 .11 .02 15 .01 1.3 1.5 .8 3.0 .82 1.4 .09 .01 16 .01 1.6 1.5 .7 2.3 .70 1.2 .09 0 17 .01 7.0 1.4 .2 2.3 1.0 1.1 .09 0 18 .01 62 1.4 .9 2.3 .89 1.1 .09 0 19 .01 159 1.4 .6 2.3 .95 l.l .07 0 20 10 3B 1.3 .9 2.5 .93 1.3 .07 0 21 27 12 1.1 .4 1.8 .96 1.2 .07 0 22 63 7. 1.0 .7 1.7 .69 .96 .06 0 23 IB 5. .75 .6 1.7 .74 .68 .06 0 24 5.6 4. .76 .6 1.3 .77 .78 .06 0 25 3.9 4. 1.1 .5 .98 .61 .81 .05 0 26 24 4. 1.3 .3 .77 .63 .49 .05 0 27 30 3. 2.3 .4 1.2 .64 .46 .05 0 2B 5.0 3. IB .6 1.1 .67 .66 .04 0 29 3.9 3. 4.7 ,5 .96 .78 .58 .04 0 30 3.2 3. 2.7 .34 .78 .53 .03 0 31 -" - 2. 2.1 "~ .26 .39 D 70.25 2T.11 4.41 .40 MEAN 6.46 11. 2.29 2 74 3.74 2.34 .67 .15 .013 MAX 63 159 18 .6 45 35 2.0 .56 .03 MIN D 1.3 .75 .0 .26 .34 .39 .03 0 AC-FT 364 696 141 157 230 139 54 a.B .6 CAL YR 1967 TOTAL 1,936. 93 MEAN 850 HTR YR 1968 TOTAL 913. 24 MEAN 2.50 MAX 159 MIN D AC-FT 1, 810 SAN DIEGO RIVER BASIN 11022500 SAN DIEGO RIVER NEAR SANTEE, CALIF.--CONTINUED DISCHARGE DAY OCT NOV DEC JAN FE8 MAR APR HAY JUN JUL AU6 SEP 1 0 .99 1.2 3. 27 101 6.6 .8 1.7 1.7 .12 .01 2 0 .80 1.4 3. 21 57 6.7 .1 1.7 1.1 .10 .01 3 0 .86 1.5 3. 17 44 7.8 .1 1.5 .72 .07 .01 4 0 .88 1.2 3. 13 37 7.1 .1 .94 .50 .06 .02 5 0 1.1 1.4 2. 11 29 6.1 .6 .81 .63 .12 .02 6 0 1.1 1.3 3. 261 24 12 5.1 .73 1.1 .08 .02 7 0 .81 1.4 2. 125 21 7.4 5.2 .94 1.1 .05 .02 8 0 .91 1.3 2. 51 16 .02 9 .01 .85 1.6 2. 36 IB .02 10 .58 .71 1.5 2. 33 76 6.6 3.0 2.5 .36 .02 .02 11 .76 .75 1.4 2. 27 40 6.6 3.4 2.5 .27 .02 .02 12 .74 .80 1.9 1. 25 18 6.9 3.9 2.2 .21 .10 .02 13 .74 .67 2.8 1. 24 75 B.I 3.2 1.7 .12 .28 .02 14 .84 1.1 2.0 235 19 34 B.6 2.6 1.5 .18 .36 .02 15 1.2 1.2 1.8 66 13 16 7.5 2.1 2.1 .50 .50 .02 16 2.2 12 2.1 21 18 13 .02 17 1.6 4.3 2.4 15 16 12 3.2 1.8 2.5 .12 .08 .02 IB 1.3 2.6 2.3 13 60 10 3.9 2.3 2.0 .09 ..04 .02 19 1.2 2.0 2.9 20 182 11 4.2 2.5 1.4 .06 .33 .02 20 1.1 1.7 3.3 21 291 9.9 4.7 2.0 1.3 .06 .25 .02 21 1.3 1.7 3.4 98 76 25 5.0 1.6 1.2 .04 .16 .02 22 1.2 1.7 2.7 29 577 78 4.6 2.0 1.6 .03 .04 .02 23 .97 1.4 2.8 14 174 20 3.7 2.1 2.3 .02 .03 .47 24 .75 1.5 2.7 50 313 IS 3.8 2.2 2.1 .02 .02 .40 25 .66 1.5 2.8 517 490 8.6 4.1 .1.9 1.6 .02 .02 .11 26 .56 1.3 23 447 622 7.0 4.1 2.0 1.3 .27 .02 .08 27 .86 1.5 7.7 332 166 4.5 3.9 1.9 1.3 .29 .01 .10 28 .88 1.1 3.3 106 102 6.9 3.6 1.6 .96 .52'.44 .01 .30 29 .85 1.1 2.9 96 6.3 3.2 1.0 1.1 .01 .81 30 .91 1.0 2.7 56 »«. 6.1 2.6 1.2 l.S .21 .01 1.0 31 .97 2.7 40 . 7.0 1.7 .14 .01 12.81 3.40 3.68 MEAN .72 1.66 3.01 71.3 135 27.3 5.59 2.66 1.63 .41 .11 .12 MAX 2.2 12 23 517 622 101 12 5.2 2.5 1.7 .50 1.0 HIM 0 .67 1.2 l.f 11 4.5 2.6 1.0 .73 .02 .01 .01 AC -FT 44 99 185 4t380 7,520 1,680 333 164 97 25 6.7 7.3 DISCHARGE . IN CUBIC FEET PER SECOND , MATER YEAR OCTOBER 1969 TO SEPTEMBER 1970 JUN "" DAY OCT NOV tJUI. AU6 SEP 1 .84 .12 4.1 2.7 .91 212 2.6 2.3 1.1 .72 .04 .01 2 .82 .12 4.7 2.5 .83 157 2.4 2.0 1.1 .63 .03 .01 3 .68 .21 3.5 -2.6 .72 20 2.4 2.1 1.5 .63 .03 .10 4 .47 .40 3.0 2.4 .93 11 2.4 2.3 1.8 .57 .02 .09 5 .12 .71 2.5 2.2 .1.5 183 2.3 2.3 1.6 .52 .11 .09 6 .08 .78 2.2 2.0 1.1 26 2.8 2.4 1.5 .49 .14 .03 7 .06 9.9 2.2 1.9 1.1 23 2.5 2.0 1.5 .46 .27 .07 8 .17 15" 1.8 .42 .35 .07 9 .36 2.5 5.0 2.1 1.1 2.8 1.3 1.6 .40 .06 .11 10 .47 7.0 3.0 2.7 6.6 26 2.9 1.9 1.1 .36 .03 .09 11 .39 4.0 2.3 3.8 21 16 3.1 1.8 .92 .33 .03 .07 12 .19 2.8 2.1 4.0 4.5 12 3.2 l.S .70 .27 .03 .11 13 .35 .51 .23 .03 .05 14 .62 .92 .20 .03 .03 15 .40 2.4 2.3 3.6 1.9 7.3 2.7 .96 .77 .17 .03 .08 16 .35 5.9 2.1 4.1 1.8 6.8 2.4 .61 .68 .69 .02 .16 17 .47 3.4 1.7 IS 1.7 6.5 2.5 .73 .74 .50 .02 .29 18 .45 2.5 1.7 5.2 1.5 6.1 2.4 .69 .81 .46 .02 .35 19 2.4 .64 .92 .16 .02 .51 20 .31 2.0 1.7 4.6 1.1 5.S 2.5 .86 1.1 .06 .02 .51 21 2.2 1.1 .67 22 .48 1.7 2.1 3.S 1.2 3.7 2.5 1.2 .93 .03 .02 .69 23 .39 .03 .02 .65 24 .35 25 .32 1.3 1.9 2.3 1.5 5.1 2.2 .84 1.4 .02 .01 1.0 26 .11 1.2 2.4 1.9 1.7 4.4 2.0 .70 1.4 .02 .02 .40 27 .31 1.1 1.3 .02 .01 .15 28 .77 1.1 3.4 1.6 18 3.4 3.1 .77 1.0 .02 .01 .08 29 .57 .96 3.1 1.4 3.4 2.8 .63 .91 .02 .01 .19 30 .30 1.0 3.0 1.2 .... 3.0 2.5 .84 .79 .02 .01 .06 31 .14 2.8 .93 2.9 -84 .04 .01 TOTAL 12.13 69.70 80.2 100.43 83.69 821.2 77.4 40.37 34.08 8.56 1.48 - 7.82 MEAN .39 2.32 2.59 3.24 2.99 26.5 2.58 1.30 1.14 .28 .048 .26 MAX .84 9.9 5.0 15 21 212 3.2 2.4 1.8 .72 .35 1.1 HIN .06 .12 1.7 .93 .72 2.9 2.0 .63 .51 .02 .fll .01 AC-FT 24 138 159 199 166 1,630 154 BO 68 17 2.9 16 LOS PENASQUITOS CREEK BASIN 11023340 LOS PENASQUITOS CREEK NEAR POWAY, CALIF. LOCATION.--Lat 32°56'35", long 117°07'15", in Los Penasquitos Grant, San Diego County, on left bank 1.0 mile downstream from Cypress Creek and 5.5 miles southwest of Poway. DRAINAGE AREA.--42.1 sq mi. PERIOD OF RECORD.--October 1964 to September 1970. GAGE.--Water-stage recorder. . Altitude of gage is 260 ft (from topographic map). AVERAGE DISCHARGE.--6 years, 4.35 cfs (3,150 acre-ft per year). EXTREMES. --Max imums md minimiins (dis charge in cubic feet p r second , gage height in f jet). Annual m iximua di. charge (*) and peak dis charge > above b ase (60 cfs), v»ater years 1966 70 Date Time Disch. G.H. Date Time Disch. G.H. Date Time Disch. G.H. Nov. 23 1965 0500 1,610 7.40 Jan. 23, 1967 0500 64 2.24 Feb. 6, 1969 1700 291 a3.78 Dec. 9 1965 1000 676 4.62 Jan. 25, 1967 - 271 3.27 Feb. 19, 1969 2300 138 3.02 Dec. 14 1965 1700 523 4.11 Apr. 11, 1967 1630 75 2.36 Feb. 22, 1969 0600 291 3.78 Dec. 30 1965 0030 202 2.94 Feb. 25, 1969 2030 963 a5.97 Feb. 6 1966 1515 101 2.59 Mar. 8, 1968 1215 *256 3.22 Feb. 28, 1970 2045 *260 3.64 Dec. 6, 1966 2000 *2,100 a6.90 Jan. 25, 1969 1415 632 b5.04 Mar. 5, 1970 0600 112 2.80 a In gage well, 7.70 ft from profile of floodmarks. b From outside gage. ininmm daily discharge, water years 1966-70 Wtr yr Date Discharge Wtr yr Date Discharge 1966 Dec. 8, 1965 .20 1969 Aug. 8, 1969 .48 1967 Aug. 7, 1967 .13 1970 Apr. 15, 1970 .28 1968 May 16, 17, 1968 Period of record: Maximum discharge, 2,100 cfs Dec. 6, 1966 (gage height, 6.90 ft, in gage well, 7.70 ft, from profile of floodmarks), from rating curve extended above 400 cfs on basis of slope-area measurement at gage height 6.23 ft, in gage well (7.40 ft, from outside gage); no flow May 16, 17, 1968. REMARKS.--Records good. Flo partly regulated by several conservation reser station. Pumping from igation. Flow augmented by reclaimed water fro way are DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1965 TO SEPTEMBER 1966 NOV DEC JAN FEB MAR APR MAY JUN JUL 1 .40 .50 2.5 5 4.0 .8 .90 .50 .60 .60 2 .50 .50 1.5 3 2.6 .9 .90 .50 .60 .50 3 .50 .50 1.0 2 2.0 .3 .80 .50 .60 .40 4 .50 .50 .70 2 1.6 .7 .90 .50 .50 .40 5 .60 .50 .50 2 1.6 .6 .80 .50 .60 .40 6 .50 .40 .40 1 36 .9 .90 .50 .60 .50 7 .60 .40 .30 1 25 .8 .80 .50 .50 .50 8 .70 .30 .20 1 35 .7 .80 .80 .60 .50 9 .70 .40 285 8 12 .2 .80 .60 .60 .60 10 .80 .30 243 .6 16 .2 .90 .70 .50 .50 11 .70 .30 62 .8 19 .2 .90 .60 .50 .40 12 .70 .30 40 11 .4 .80 .60 .60 .40 13 .60 .30 77 8.6 .4 .80 .60 .50 .50 14 .60 .40 201 6.7 .4 .80 .70 .50 .50 15 .60 1.5 79 5.5 .4 .70 .60 .60 .40 16 .50 3.4 169 4.6 .3 .70 .60 .60 .50 17 .60 2.2 63 4.2 .3 .70 .50 .60 .40 18 .50 5.0 40 3.7 .5 .60 .50 .50 .40 19 .50 2.4 29 3.5 .1 60 .60 .60 .40 20 .50 .80 23 3.1 .7 .60 .50 .60 .50 21 .40 .40 18 3.0 .8 .50 .60 .60 .50 22 .40 44 32 2.8 .7 .50 .40 .60 .40 23 .40 4 17 23 2.7 .7 .90 .50 .40 .50 .50 24 .40 49 16 2.7 .3 .90 .50 .40 .50 .50 25 .40 49 14 3.5 .8 1.0 .50 .40 .50 .50 26 .40 30 13 4.1 .8 .90 .60 .50 .60 .40 27 .40 17 11 3.4 .7 .90 .60 .50 .50 .40 28 .40 11 11 2.7 .8 .90 .50 .50 .50 .50 29 .40 6.8 30 .»»_ .6 .90 .50 .70 .70 .50 30 .40 4.3 72 12 . .6 .80 .40 .80 .70 .60 31 .40 42 15 .5 .60 ___ .70 .50 MEAN .52 21.6 51.6 9. 3 8.24 2 29 1.13 .69 .55 .57 .47 MAX .80 417 285 f 36 .9 1.5 .90 .80 .70 .60 MIN .40 .30 .20 1 1.6 .5 .80 .40 .40 .50 .40 AC-F7 32 1,290 3.170 6 ) 457 41 67 42 33 35 29 CAL YR 1965 TOTAL 2.512. 10 MEAN 6.88 MAX 417 MIN .10 AC-FT 4,980 HTR YR 1966 TOTAL 2,991.70 MEAN 8.20 MAX 417 MIN .20 AC-FT 5.930 LOS PENASQUITOS CREEK BASIN 11023340 LOS PENASQUITOS CREEK NEAR POWAY, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1966 TO SEPTEMBER 1967 DAY OCT MAY JUN JUL AUb itr 1 .50 .28 .60 .9 12 1.9 1.7 2.7 .4 .75 .76 .65 2 .60 .26 .50 .4 10 1.9 2.7 2.5 .6 .73 .90 .81 3 .60 .25 10 .2 1.9 2.7 3.1 .8 .75 1.2 .63 4 .60 .30 13 .2 8. 1.9 2.3 3.0 .1 .66 1.3 .46 5 .50 .40 392 .1 6. 1.8 4.6 2.9 .1 .61 1.2 .47 6 .60 .40 728 .1 5- 1.8 2.7 2.8 .2 .66 .43 .51 7 .60 7.3 159 .0 4! 1.8 2.3 2.8 .2 .67 .13 .37 8 .50 15 38 .0 4.: 1.8 1.8 2.6 .97 .63 .82 .22 9 .60 2.8 27 .0 1.8 2.1 2.6 .SB .99 .86 .42 10 1.5 .80 21 .0 3. 2.1 2.2 2.5 .84 1.1 .98 .41 11 .90 .50 14 1.0 3. 1. 25 2.5 .93 .70 .80 .26 12 .90 .50 10 .96 3. 1. 27 2.3 .97 .35 .84 .51 13 .90 .50 8.3 .94 3. 2. 7.2 2.3 1.1 .41 .88 .55 14 .60 .50 .8 .92 2. 18 3.6 2.2 1.1 .47 .89 .50 15 .60 .50 .5 .90 2. 6. 2.9 2.1 1.0 .57 1.4 .60 2.0 2.0 1.1 .83 1.5 .45 16 .40 .50 .88 2. 1. 2.-0 17 2.8 .50 .87 2. 1. 2.0 .88 .67 .83 .37 18 2.0 .50 t .86 2. 1. 3.4 1.8 .94 .60 .31 .64 19 1.7 .50 f .83 2. 1. 12 1.8 .SB .48 .33 .44 20 1.5 .50 . i .BO 2. 1. 12 1.7 1.0 .57 1.3 .4B 21 1.2 .50 2.1 2. 1. 3.3 1.7 .74 .63 .4 .27 22 1.0 .50 ^ 5.6 2. 1. 5.4 1.5 .85 .53 .6 .44 23 .90 .50 ^ 30 2. 1. 3.9 1.5 .81 .47 .3 .34 24 .80 .50 14 2 . 1. 2.8 1.4 .79 .61 .1 .41 25 .70 -.50 150 2. 1. 2.9 1.4 .94 .68 .58 .49 26 .60 .50 80 2 . 1. 2.9 1.3 .86 .75 .1 .61 27 .50 .50 ^ 50 2 B 1. 2.6 1.3 .97 .84 .3 .69 2B .40 .50 ^ 30 I. 1 1. 2.8 1.2 1.1 .64 .4 .64 29 .35 .50 . 20 1. 3.0 2.9 l.C .67 .3 .63 30 .30 .50 15 ""»__ 1. 2.8 3.2 .78 .93 .58 .63 31 .29 14 3. 1.9 .60 .46 MEAN .64 1.26 8.0 14.0 3.96 2.3 5.15 2.18 1.03 .67 .96 .50 MAX 2.8 15 728 150 12 1 27 3.2 1.8 1.1 1.6 .85 MIN .29 .25 .50 .80 1.9 1. 1.7 1.2 .74 .35 .13 .22 AC-FT 51 75 2,950 860 220 14 307 134 61 41 59 30 MIN .25 AC-FT 4,520 NOTE. NO GAGE-HEIGHT RECORD JAN. 25 TO MAR. 9. DISCHARGE, IN CUBIC FEET PER SECOND, MATER YEAR OCTOBER 1967 TO SEPTEMBER 196B DAY OCT NOV DEC JUN JUL AUG 1 .63 .70 1. .88 1.1 .6 3.6 1.1 .90 .BO .70 2 .63 .85 1. .68 .1 .4 32 1.1 .90 .80 .70 3 .63 .88 1. .88 .4 .9 5. 1.1 .90 .80 .70 4 .63 .88 1. a .6 .5 1. 1.1 .90 .80 .70 5 .63 .87 1. .7 .3 1. .80 .90 .BO .BO 6 .63 .88 1. # .4 .4 1. 2.3 .' 0 .90 .70 7 .63 . 0 1. f .2 .1 1. 4.2 .90 .70 8 .63 , 1. f .2 5 . 9 4.0 ^ .90 .70 9 .63 . 1. . .2 2 1. 3.6 ^ .9 .70 10 .63 1. .3 .0 . 7 2.8 . .8 .60 11 .63 1. ^ .3 .6 . 1 .70 ^ .B .70 12 .63 . 1. . .3 .8 1. .60 ^ .8 .70 13 .63 . 1. . .1 .7 1. .20 9 .8 .BO 14 .63 , 1. t .8 .6 .10 B g .70 15 .63 1. .B .5 I 7 .10 . .8 .60 16 .63 f 1. . .5 .5 . 7 0 .70 .70 17 .63 . 1. ^ .4 .5 . 8 0 B .70 .80 18 .63 . 12 . .5 .8 .10 f .70 .60 19 .63 , 20 a .5 .4 I 7 .20 t .70 .60 20 .63 10 .7 .3 . 7 .20 .< .60 .70 21 .63 f 3> .8 .2 1.1 .20 .70 .60 22 .63 . 1. , .8 .3 .99 .30 f .70 .80 23 .63 . 1. . .8 .3 .79 .90 ^ .80 .60 24 .63 # 1. ^ .3 .3 .79 .90 .60 .60 25 .63 1. .85 .4 .79 .90 1. .70 .60 26 .66 1.0 . .80 .3 .90 .90 .90 .70 .60 27 .70 . .90 m .SB .3 .67 .90 .90 .80 .60 28 .70 . .B8 . .B .1 .90 .90 .90 .90 .60 29 .71 m .88 a .5 .1 .90 .90 .90 .90 .60 30 .71 . .68 . . .2 1.0 .90 .90 .90 .60 31 .70 .88 .2 .90 .80 .60 119.6 68. B6 32.90 24.40 20.70 MEAN .64 1.27 2.43 1. 3 1.57 3.86 2.30 1.06 .96 .79 .67 MAX .71 4.0 20 2 5 4.8 52 32 4.2 1.0 .90 .80 WIN .63 .70 .88 . 8 .80 1.1 .79 0 .90 .60 .60 AC-FT 40 75 149 6 91 237 137 65 57 4B 41 WTR YR 1968 TOTAL 535. 22 MEAN 1.46 MAX 52 MIN 0 AC-FT 1,060 NOTE. NO GAGE-HEIGHT RECORD NOV. 7 TO JAN. 4. LOS PENASQUITOS CREEK BASIN 11023340 LOS PENASQUITOS CREEK NEAR POWAY, CALIF.--CONTINUED DISCHARGE. IN CUBIC FEET PER SECOND, MATER YEAR OCTOBER 1968 TO SEPTEMBER 1969 .70 .64 1.1 .71 5.8 33 4.4 2.8 1.2 1 .1 . .70 .69 1.1 .80 4.4 22 4.3 2.8 1.3 .99 . .70 .82 1.2 .75 2.4 19 5.4 2.8 1.2 .95 . .70 .81 .81 .62 i.e 16 4.8 3.4 1.2 .93 . .72 .74 .88 .78 1.6 12 4.4 3.5 1.2 .71 .76 .71 .94 .86 88 11 5.5 2.8 1.2 .55 . .81 .70 1.2 .84 33 9.4 4.4 3.0 1.2 .49 .75 .76 .80 .80 14 8.6 4.2 2.4 1.2 .48 .6.9 .71 .88 .75 .68 4.8 2.0 1.2 .58 .70 .75 .79 .75 5.3 13 5.1 1.7 1.4 .57 . .71 .66 21 5.2 1.6 1.6 .71 ". .82 .79 .70 17 3.5 15 4.6 1.5 1.5 .66 .72 .65 .81 .62 .91 .70 1.6 2.6 6.9 4.0 1.4 1.4 8 .92 . .64 .92 .80 1.6 8.3 6.1 4.0 1.5 1.3 9 .1 . .70 .96 .73 1.6 29 5.5 4.1 1.4 1.3 1. .1 . .76 .89 .95 1.7 37 5.7 3.9 1.4 1.3 1. .1 .75 .83 .70 14 17 14 4.0 1.4 1.3 .0 . .70 .92 .73 5.7 119 17 3.8 1.4 1.3 .0 .67 .91 .77 2.1 34 7.5 4.0 1.4 1.3 .2 . .67 .99 .81 6.5 179 6.0 3.8 1.4 1.3 .1 .71 1.0 1.3 196 312 5.0 3.7 1.3 1.3 .2 .75 .92 1.9 105 175 4.4 3.4 1.4 1.2 9 .2 . .80 .96 .90 89 51 4.2 3.1 1.3 1.2 .2 . .76 .94 .8! 37 35 4.1 2.8 1.3 1.2 .3 .72 .95 .90 36 4.0 2.7 1.2 1.1 .3 '. .83 1.1 .87 15 4.2 2.6 1.2 1.2 .3 31 .75 .73 7.7 4.5 .4 TOTAL MEAN .72 .86 .90 17.9 42.5 10.6 4.16 1.85 1.3D 1. 14 .93 1 2 MAX .83 1.1 1.9 196 312 33 5.5 3.5 1.8 1 .3 1.4 . MIN .62 .64 .70 .62 1.6 4.0 2.6 1.2 1.1 98 .48 AC-FT 44 51 56 1.100 2.360 TOTAL 476.23 MEAN 1.31 MAX 52 HIN 0 DISCHARGE, IN CUBIC FEET PER SECOND, HATER YEAR OCTOBER' 1969 TO SEPTEMBER 1970 .1 1.1 1.4 51 2.0 1.5 1.7 .2 1.2 1.3 .2 1.1 1.3 53 2.0 1.5 1.6 .2 1.2 1.3 .2 1.2 1.3 5.2 2.0 1.4 1.5 .2 1.2 1.3 .2 1.2 1.3 SO 1.9 1.4 1.6 .2 1.1 1.3 .3 1.2 1.3 16 1.8 1.4 1.6 .3 1.1 1.3 .9 1.2 1.3 13 1.8 1.4 1.6 .2 1.1 1.3 .5 1.2 1.3 10 1.8 1.4 1.7 .2 1.1 1.5 .3 1.2 1.3 7.1 1.8 1.4 1.6 .2 1.1 1.4 .9 1.7 3.7 5.7 1.8 1.4 1.5 .3 1.1 1.3 .4 1.5 11 4.9 1.8 1.3 1.3 .3 1.2 1.3 .2 1.4 1.7 1.9 .53 1.2 1.3 .3 1.1 1.3 .2 1.4 1.5* .85 .30 1.2 1.3 .3 1.1 1.4 .4 1.7 1.5 .66 .28 1.2 1.3 .2 1.1 1.3 .7 2.1 1.5 .57 .3 1.2 1.3 .2 1.1 1.3 .4 .2 1.7 1.4 .55 .5 1.2 1.3 .2 1.2 1.3 .2 1.6 1.4 .56 .5 1.2 1.3 .2 1.2 1.3 .2 1.6 1.3 .77 .5 1.2 1.3 .3 1.2 1.3 .2 1.6 1.4 .86 .5 1.2 1.3 .3 1.2 1.4 .2 1.7 1.4 .93 .4 1.1 1.2 .2 1.2 1.3 .3 1.7 1.4 .98 .6 1.3 1.2 .2 1.2 1.2 .4 1.6 1.5 .3 .9 1.2 1.2 .2 1.3 1.3 .3 1.6 1.5 .7 .3 1.3 1.2 .2 1.3 1.3 .3 1.6 1.5 .7 .3 1.3 1.2 .2 1.3 1.3 .3 1.5 1.5 .8 .3 1.4 1.2 .2 1.3 1.3 .3 1.4 37 .6 .5 1.4 1.2 .2 1.3 1.3 .3 1.4 .7 .3 1.3 1.2 .2 1.4 1.3 .3 1.4 .7 .6 1.3 1.2 .2 1.3 1.3 31 1.3 .8 1.4 .2 1.4 TOTAL 1.9 3 46.9 87.8 250.61 61.51 40.5 40.9 3 .0 37.1 39.3 MEAN .40 1 i 1.51 3.14 8.08 2.05 1.31 1.36 1 23 1.20 1.31 MAX 3.9 3.4 37 S3 6.9 1.5 1.7 .3 1.4 1.5 HIN 1.1 1.1 1.3 .48 .28 1.1 1.2 .2 1.1 1.2 AC-FT 83 r 93 174 497 122 80 81 75 74 78 AC-FT 4,980 MTR YR 1970 TOTAL 756.05 MEAN 2.07 MAX 53 MIN .28 AC-FT 1,500 46 SAN DIEGUITO RIVER BASIN 11024000 SANTA YSABEL CREEK AT SUTHERLAND DAM, CALIF. LOCATION.--Lat 33°07'06", long 116°47'11", in SlftSVWWs sec.21, T.12 S. , R.2 E., San Diego County, Sutherland Dam, 1.6 miles upstream from Black Canyon Creek and 7 miles northeast of Ramona. DRAINAGE AREA.--53.9 sq mi. 1970 (discontinued). Prior to October 1953, published as "near Mesa Grande." See WSP 1928 for history of changes pr-ior to Nov. 30, 1954. AVERAGE DISCHARGE. -- 49 years (1913-28, 1936-70), 16.9 cfs (12,230 acre-ft per year) ; median of yearly mean dis- charges, 6.6 cfs (4,800 acre-ft per year). 1 ing (gage height, 145 .00 ft), 29,680 acre-ft. Dead stora ge, 176 a cre-ft below lowest outlet at gage height 28.00 ft, include eased a. required f COOPERATION. --Records furnished by city of San Diego. REVISIONS. --WSP 1928 : Drainage area. MONTHLY DISCHARGE, WATER YEARS OCTOBER 1965 TO SEPTEMBER 1970 MONTH GAGE CONTENTS CHANGE DRAFT EVAPO SPILL DIS HEIGHT (ACRE- IN (ACRE- RATION PLUS CHARGE (ACRE- FEET) (ACRE- FEET) SUTHERLAND RESERVOIR FEET) FEET) ...... 69.23 3,266 -65 0 80 0 15 NOVEMBER...... 75.15 4,264 +998 0 34 0 1,032 DECEMBER...... 5,102 + 838 0 32 0 .870 ...... - +2,308 .1 704 0 3,012 JANUARY 1966...... 83.39 5,947 + 845 0 44 0 889 6,868 +921 0 52 0 973 MARCH...... 86.38 6,646 -222 597 84 0 459 APRIL...... ;... 85.83 6,514 -132 199 94 0 161 3,676 -2,838 2,840 97 0 99 2,019 -1,657 1,671 66 0 80 1,967 -52 0 78 0 26 AUGUST...... 58.91 1,902 -65 0 72 0 7 SEPTEMBER...... 1,855 -47 0 54 0 7 ...... - -1,476 5,307 787 0 4,618 1,825 -30 0 44 0 14 ...... 58.23 1,829 +4 0 25 0 29 DECEMBER...... 5,969 +4,140 811 65 0 5,016 ...... - + 867 6,118 775 0 7,760 ...... -64.15 2,538 47 0 747 FEBRUARY...... 60.56 2,091 -447 640 33 0 226 ...... 64.10 2,531 +440 0 28 0 468 APRIL...... 3,958 +1,427 0 33 0 1,460 2,872 -1,086 1,492 77 0 483 ...... 61.63 2,218 -654 912 52 0 310 ...... 61.46 2,198 -20 0 77 0 57 2,130 -68 0 78 0 10 SEPTEMBER...... 60.53 2,087 -43 0 *8 0 5 ...... - +232 7,986 607 0 8,825 OCTOBER...... 2,032 -55 0 62 0 7 ...... 60.22 . 2,051 +19 0 29 0 48 DECEMBER...... 2,480 +429 0 27 0 456 ...... - -3,489 7,175 591 0 4,277 JANUARY 1968...... 64.56 2,593 +113 0 32 0 145 ...... 60.12 2,039 -554 665 27 0 138 ...... 61.23 2,1TO +131 0 35 0 166 ...... 62.06 2.2TO +100 0 44 0 144 MAY...... 62.34 2,306 +36 0 57 0 93 ...... 62.01 2,264 -42 0 70 0 28 ...... 61.43. 2,194 -70 0 80 0 10 2,114 -80 0 76 0 -4 SEPTEMBER...... 60.18 2,046 -68 0 61 0 -7 ...... -41 665 600 0 1,224 OCTOBER...... 59.84 2,007 -39 0 41 0 2 1,990 -17 0 32 0 15 DECEMBER...... 60.06 2,032 +42 0 25 0 67 ...... - -448 665 580 0 797 5,125 +3,093 0 24 0 3 117 12,269 +7,144 0 26 0 ...... 110.79 13,951 +1,682 2 796 108 0 4 586 ...... 110.29 13,773 ' -178 1 381 117 0 1 320 13,508 -265 1 427 150 0 1 312 UNE...... 93.66 8,538 -4,970 5 104 112 0 246 ...... 67.20 2,961 -5,577 5 739 124'92 0 286 2,618 -343 282 0 31 2,570 -48 0 69 0 21 ...... - +524 16,729 920 0 18,173 OCTOBER...... 2,530 -40 0 53 0 13 NOVEMBER...... 64.53 2,590 +60 0 49 0 109 DECEMBER...... 2,670 +80 0 31 0 111 ...... - +640 16,732 955 0 18,327 JANUARY 1970...... 2,770 +100 0 28 0 128 FEBRUARY...... 66.48 2,860 +90 0 39 0 129 MARCH...... 2,610 -250 446 46 0 242 ...... 65.18 2,680 +70 0 45 0 115 MAY ...... 65.15 2,670 -10 0 65 0 55 JUNE...... 64.70 2,610 -60 0 70 0 10 2,530 -80 0 88 0 AUGUST...... 63.51 2,450 -80 0 82 0 2 2,370 -80 0 82 0 2 ...... - -200 446 678 0 924 t GAGE HEIGHT AT 0800 HOURS ON LAST DAY OF MONTH. NOTE. FOR MON-THS WHEN DISCHARGE TO THE RESERVOIR WAS SMALL AND OTHER ELEMENTS WE'RE LARGE, DISCORDANT FIGURES OF DISCHARGE MAY APPEAR. THIS ARISES PRIMARILY FROM THE DIFFICULTY OF COMPUTING DISCHARGE AS A RESIDUAL OF SEVERAL LARGER QUANTITIES WHICH ARE NOT SUSCEPTIBLE TO MEASUREMENT WITH A PRECISION NECESSARY TO PRODUCE A FINAL ANSWER WITHIN DESIRABLE LIMITS OF ACCURACY. SAN DIEGUITO RIVER BASIN 11025500 SANTA YSABEL CREEK NEAR RAMONA, CALIF. LOCATION.--33"06'25", long 116°51'S5", in SWWIWWE't sec.27, T.12 S., R.I E., San Diego County, on left bank 1.6 miles downstream from Temescal Creek and 4.5 miles north of Ramona. DRAINAGE AREA.--112 sq mi. PERIOD OF RECORD.--February 1912 to February 1923, October 1943 to September 1970. Monthly discharge only for February 1912, published in WSP 1315-B. n sea level (levels by city of San Diego Water Department) . See WSP 1928 for history of changes prior to Feb. 4, 1923. EXTREMES .- -Maximums and minimums (discharge in cubic feet per second, gage height in feet) for the water years 1966-70 are contained in the following table: Maximum Minimum daily Wtr yr Date Discharge G.H. Date Tlischa rge 1966 Nov. 23, 1965 4,570 . 10.06 Long periods 0 1967 Dec. 6, 1966 6,050 11.44 do. 0 1968 Mar. 8, 1968 78 3.02 do. 0 1969 Jan. 25, 1969 6,180 11.55 Many days 0 1970 Mar. 5, 1970 88 3.09 do. 0 27, 1M16 (gage height, 14.0 ft, datum then in use) from rating curve extended above 1,500 cfs based on slope -conveyance computation of peak flow; no flow at times in some years. REMARKS. --Records good. Flow regulated since July 1954 by Sutherland Reservoir (see station 11024000). Some small diversions above station. REVISIONS.- -WSP 1928: Drainage area. DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1965 TO SEPTEMBER 1966 DAY OCT NDV DEC JAN FEB MAR APR MAY JUN JUL AU6 SEP 1 0 2.8 25 8.5 5.8 1.4 2 0 2.4 16 7.0 11 1.1 3 0 2.D 13 6.0 8.7 1.0 4 0 1.6 12 5.0 .8 .90 % D 1.4 10 5.0 .9 .90 6 0 1.2 9 8.0 .6 .80 7 0 1.1 8 31 .3 .60 8 0 1.1 24 .0 .60 9 0 7.1 16 .8 .90 10 0 18 15 .3 1.1 11 0 14 12 .3 1.2 12 D 9.1 9.9 .3 1.1 13 0 13 9.1 .3 .90 14 0 IS 8.3 .3 .70 IS 0 13 T.9 .0 .60 16 0 15 T.I .0 .50 17 0 10 6.8 .8 .40 18 .10 8.3 6.4 .6 .30 19 .20 6.8 6.1 .4 .20 20 .10 6.1 5.8 .4 .20 21 .10 5.8 5.5 .4 .10 22 170 9.5 4.9 .2 .10 23 1,060 9.9 4.9 .0 .10'.10 24 22 6.4 4.9 .9 25 19 6.1 6.1 .9 .10 26 14 5.8 7.5 .8 .10 27 6.8 5.2 6.4 .5 .10 28 4.9 4.9 5.5 .6 .10 29 4.0 7.1 «.».»_ .0 .10 30 3.3 83 _ .5 .10 31 18 17 - .0 0 ~* TOTAL 0 1,304.50 310.7 238.6 2S0.6 13 .4 5 16.40 0 MEAN 0 43.5 10.0 7.70 8. 95 4 34 1 .53 0 MAX 0 1,060 83 25 31 11 1.4 0 MIN 0 0 1.1 4.2 4.9 .0 0 0 AC-FT 0 2.590 616 473 497 67 118 33 0 CAL YR 1965 TOTAL 1,849.80 MEAN 5.07 MAX 1,060 MIN 0 AC-FT 3,670 HTR YR 1966 TOTAL 2,314.50 MEAN 6.34. MAX 1,060 MIN 0 AC-FT 4,590 SAN DIEGUITO RIVER BASIN 11025500 SANTA YSAEEL CREEK NEAR RAMONA, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEET PER SECOND. HATER YEAR OCTOBER 1966 TO SEPTEMBER 1967 1 0 4.3 8.3 1.6 2 0 4.3 6.4 1.4 6.8 13 5.2 3 0 4.0 5.8 1.6 5.8 12 4.3 4 0 4.0 5.5 3.3 5.5 12 3.8 5 469 4.0 5.2 3.0 8.7 11 3.5 6 11 3.5 7 455 3.8 4.3 3.3 5.5 9.1 3.5 8 9 37 3.3 .0 3.0 4.9 7.1 3.8 10 30 3.0 .3 2.8 4.6 8.3 4.6 0 11 24 3.3 .0 3.3 31 10 4.9 12 20 3.3 .8 3.5 44 8.7 5.5 13 17 3.8 .8 6.4 32 7.1 6.1 14 14 3.8 .8 47 21 6.1 6.8 15 12 3.8 .8 14 16 5.2 5.2 16 11 3.8 .8 8.7 14 4.9 4.3 17 9.8 4.0 .3 7.1 13 4.6 3.8 18 9. 3.5 .3 6.8 12 4.3 3.5 19 8. 3.3 .3 6.1 33 4.6 2.8 20 T« 3.3 .3 5.8 36 4.6 2.4 21 6. 3.0 .0 5.5 25 4.3 2.2 22 6. 4.8 .8 5.2 79 3.5 1.7 23 5. 23 .6 4.9 37 3.5 1.4 24 5. 14 .6 4.6 30 4.0 1.2 25 4. 95 .0 4.6 25 3.8 1.1 26 4. 18 2.4 4.6 22 3.5 1.0 27 4. 12 1.7 4.6 18 3.5 .80 28 3. 9.9 1.6 4.3 17 4.3 .60 29 4. 8.3 5.2 19 5.5 .60 30 5- 7.5 5.8 17 6.4 .40 31 7.5 TOTAL 0 3.858. 278.1 108.6 189.5 601.9 215.3 98.80 2 MEAN 0 12 8.97 3.88 6.11 20.1 6.95 3.29 MAX 0 ( 2.62 I iy 0.3 *tr MIN 0 0 3.0 1.6 1.4 4.6 3.5 .40 AC-FT 0 7,650 552 215 376 1,190 427 196 AC-FT 9, 040 HTR YR 1967 TOTAL 5,352.80 MEAN 14.7 MAX 2.620 MIN 0 AC-FT 10, 620 DISCHARGE, IN CUBIC FEET PER SECOND, HATER YEAR OCTOBER 1967 TO SEPTEMBER 196B MOV DEC JAN FEB MAR APR MAY JUN JUL .10 .90 .10 .90 .10 .80 3.3 2.4 4.3 .20 .20 9.8 11 0 .20 .60 .20 12 0 .20 .60 .20 13 0 .20 .90 .20 14 0 .20 1.0 .10 15 0 .20 .90 .10 16 0 .20 .80 .10 17 0 .20 .80 .10 18 1.0 .20 .80 .10 19 15 .20 .70 .10 20 10 .20 .70 .10 21 2.4 .20 .70 .10 22 1.4 .20 .70 .10 23 .60 .20 .60 .10 24 .30 .10 .50 .10 25 .20 .10 .30 .80 0 26 .10 .20 .30 .60 0 27 .10 .40 .30 .50 0 28 .10 1.2 .30 .30 0 29 .10 1.7 .30 .30 0 30 .10 1.4 . 30 0 31 .10 1.1 . 30 TOTAL 0 0 31.50 10.50 18.10 48.00 19.70 MEAN 0 0 1.02 .34 .62 1.55 .66 MAX 0 0 15 1.7 1.0 9.8 4.3 MIN 000 .10 .30 .20 0 AC-FT 0 0 62 21 36 95 39 CAL YR 1967 TOTAL 1.526.10 MEAN 4.18 MAX 95 MIN 0 AC-FT 3.030 HTR YR 1968 TOTAL 127.80 MEAN .35 MAX 15 MIN 0 AC-FT 253 SAN DIEGUITO RIVER BASIN 11025500 SANTA YSABEL CREEK NEAR RAMONA, CALIF.--CONTINUED DISCHARGE. IN CUBIC FEET PER SECOND, MATER YEAR OCTOBER 1966 TD SEPTEMBER 1969 DAY DCT JUN JUL AUG 1 0 .01 .08 17 200 26 11 5.5 3.0 .01 2 0 .01 .09 13 133 26 11 5.5 2.8 0 3 0 .01 .09 12 117 37 11 5.5 2.6 0 4 0 .01 .09 11 103 37 14 5.5 2.5 0 5 0 .01 .09 12 B9 26 16 5.5 2.3 0 6 c .02 .09 141 77 29 16 5.5 2.2 0 7 0 .01 .09 114 72 28 16 6.1 2.0 0 8 0 .01 .09 47 65 27 12 5.8 1.6 0 9 0 .01 .09 30 55 24 11 6.1 1.4 0 10 0 .01 .09 22 77 24 11 7.1 1.2 0 11 0 .02 .09 18 70 25 10 9.5 1.2 0 12 0 .02 .10 15 60 24 9.5 8.7 1.1 0 13 0 .02 .13 14 64 22 9.5 7.9 .98 0 14 0 .02 1.6 13 60 20 8.7 7.1 .87 0 15 0 .02 .08 12 16 0 .02 .04 16 52 18 8.3 6.8 .48 0 17 0 .02 .02 13 49 17 7.9 6.8 .41 0 18 0 .02 .02 38 46 16 7.1 6.8 .28 0 19 0 .03 .09 .17 0 20 0 .03 .08 73 41 15 6.8 6.4 .09 0 21 0 .02 35 48 48 15 7.1 6.4 .09 0 22 0 .02 78 72 85 14 7.1 6.1 .04 0 23 0 .02 13 109 60 13 7.1 6.1 .02 0 24 0 .02 81 1.550 50 13 6.8 5.8 .02 0 25 0 .05 1, 810 1.970 40 12 6.4 5.8 .01 0 26 .01 .06 349 687 35 12 6.4 5.5 .01 0 27 .01 .06 208 339 30 11 .1 5.5 .01 0 .06 28 .01 .06 80 250 30 11 .1 4.9 .01 0 .02 29 .01 .06 76 29 11 .8 4.1 .01 0 .01 30 .01 .06 40 ...... 28 11 .8 3.5 .01 0 31 - .08 25 27 .5 .01 0 TOTAL 0 .05 .84 2. 798.14 5,738 1,994 599 281.7 185.7 28.08 .01 .79 MEAN 0 .002 027 90.3 205 64.3 20.0 9.09 6.19 .91 .0003 .026 MAX 0 .01 .08 1.810 1.970 200 37 16 9.5 3.0 .01 .06 MIN 0 0 .01 .02 11 27 - 11 5.5 3.5 .01 0 56 .02 CAL YR 1968 TOTAL 97.19 MEAN .27 MAX 9 MIN 0 AC-FT 193 DISCHARGE. IN CUBIC FEET PER SECOND, MATER YEAR OCTOBER 1969 TO SEPTEMBER 1970 DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG I .01 .01 .04 .06 1.2 48 .4 .98 .04 .04 0 2 .01 .02 .04 .02 1.1 47 .3 .72 .03 .04 0 3 .01 .01 .04 .02 1.1 21 .3 .57 .02 .03 .01 4 .01 .01 .04 .09 .88 13 .3 .49 .02 .03 .01 5 .01 .01 .04 .09 .76 45 .3 .48 .01 .03 .01 6 .01 .01 .01 .13 .88 16 .3 .54 .01 .03 0 7 .01 .01 .01 .17 .80 11 .3 .57 .01 .03 .01 8 .01 .01 .01 .17 .69 .3 .57 .01 .03 0 9 .01 .01 .02 .17 .69 .3 .55 .03 .04 0 10 .01 .01 .02 .34 3.4 .3 .43 .04 .04 0 11 .01 .01 .02 .34 10 .98 .38 .03 .04 .01 12 .01 .01 .02 .66 4.4 .87 .32 .02 .04 .01 13 .01 .01 .02 .66 3.4 .87 .29 .02 .04 0 14 .01 .01 .02 3.B 3.0 .87 .24 .02 .04 0 15 .01 .01 .02 2.2 2.4 .87 .16 .02 .04 0 16 .01 .01 .06 2.2 2.0 . 8 .15 .02 .04 0 17 .01 .01 .06 3.8 1.9 .06 .02 .02 0 IB .01 .01 .06 2.6 1.8 .03 .01 .02 0 19 .01 .01 .06 1.7 1.3 .03 .01 .01 0 20 .01 .01 .06 2.0 1.2 .03 .02 .01 0 21 .01 .02 .06 1.9 1.2 .03 .02 .02 0 22 .01 .04 .06 1.9 1.1 .03 .02 .02 0 23 .01 .04 .06 1.7 1.3 .05 .02 .01 0 24 .01 .06 .06 1.6 1.2 .09 .02 .01 0 25 .01 .06 .06 1.4 1.1 . 3 .07 .03 .01 0 26 .01 .04 .06 1.4 1.1 . 9 .10 .03 .01 0 27 .01 .06 .06 1.2 1.2 .17 .03 .01 0 28 .01 .04 .06 1.1 6.9 .20 .03 .01 0 29 .01 .04 .09 .98 .15 .03 .01 0 30 .01 .02 .09 1.1 __ ... .10 .03 .01 0 31 .01 .09 1.2 ...... 01 0 .77 .06 MEAN .010 .021 046 1.18 2.07 8.' 1.25 .28 .022 .025 .002 MAX .01 .06 .09 3.8 10 t 2.2 .98 .04 .04 .01 MIN .01 .01 .01 .02 .69 I .87 .03 .01 .01 0 AC-FT .6 1.3 2.8 73 115 5 75 17 1.3 1.5 .1 CAL YR 1969 TOTAL ll.627.7B MEAN 31.9 MAX 1,970 MIN 0 AC-FT 23,060 HTR YR 1970 TOTAL 406.67 MEAN 1.11 MAX 48 MIN 0 AC-FT 807 SAN DIEGUITO RIVER BASIN 11026000 SANTA YSABEL CREEK NEAR SAN PASQUAL, CALIF. LOCATION.--Lat 33°05'10", long 116°54'56", in NEV)WS<;SE»(S :.31, T.12 S., R.I E., San Diego County, on left bank east of San Pasqual. DRAINAGE AREA.--128 sq mi. PERIOD OF RECORD.--December 1905 to September 1910 and May 1911 to September 1912 (published as "near Escon- dido"), April 1947 to November 195S (irrigation seasons only), April 19S6 to September 1970. Records for October to December 1910, published in WSP 447, have been found to be in error and should not be used. GAGE.--Water-stage recorder. Concrete control since April 1947. Altitude of gage is 510 ft (from topographic 1966-70 are contained in the following table Maxitou Wtr yr Discharge G.H. Date Discharge 1966 23, 196S 5,260 10.98 Long periods 1967 6, 1966 6,130 11.56 do. 1968 8, 1968 a2.04 1969 25, 1969 12.19 1970 5, 1970 2.34 From floodmarks Period of record: discharge observed, 8,000 cfs Mar. 24, 1906 (gage height, 6.3 ft, site and datum en in use); no flo» most ye REMARKS.--Records good. No gage-height record Dec 24, 1967, to Jan. 26, 1968, Feb. 7 to Mar. 18, 1968. Flo regulated since July 1954- by Sutherland Reserve r (see station 11024000). Small diversion above station. REVISIONS (WATER YEARS).--See PERIOD OF RECORD. DISCHARGE. IN CUBIC FEET PER SECOND, HATER YEAR OCTOBER 1965 TO SEPTEMBER 1966 DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL 1 0 3. 26 .9 . ,80 2 0 2. IB ? . 3 0 2. 1 .3 1 4 0 1. 1 .5 , S 0 . 0 . 1 .3 6 0 . 0 .2 . 7 0 . 0 3 , 8 0 . 0 2 . 9 0 .3. 1 t 10 0 32 1 11 0 16 1 B 12 0 8.0 1 . 1 13 0 11 . 14 0 IS , 15 0 13 16 0 IS 17 0 9.2 . 18 0 7.5 , 19 0 6.8 . 20 0 6 TOTAL 0 1.425.8 323.90 244.3 271.1 141. 5 . 10 MEAN 0 47. S 10.4 7.86 9.68 4.5 MAX MIN 0 0 .70 4.2 5.2 2. AC-FT i WTR YR 1966 TOTAL 2,470 .60 MEAN 6.77 MAX 1.330 MIN AC-FT 4,900 SAN DIEGUITO RIVER BASIN 11026000 SANTA YSABEL CREEK NEAR SAN PASQUAL, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEET PER SECOND DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL 1 0 3.9 9.2 1. 7.7 15 7.7 .20 2 0 3.9 7.7 1. 8.0 14 5.7 .10 3 0 3.7 7.0 1. 7.0 13 4.6 .10 * 0 3.5 6.3 3, 6.1 12 3.B .10 5 549 3.6 6.1 3- B.6 11 3.3 0 6 1,980 3.6 5.9 3. 7.7 11 3.2 0 7 686 8 109 3.2 5.0 j a 6.1 7.5 3.1 0 9 98 10 81 2.9 5.3 3. 4.8 7.7 4.3 0 11 56 2.9 5.0 J. 29 10 5.0 0 12 41 3.0 4.6 3. 57 8.6 5.5 0 13 24 3.0 4.4 4. 42 7.7 6.1 0 1* 16 3.3 4.2 55 25 6.5 7.0 0 15 11 3.0 4.4 18 18 5.7 5.3 0 16 8.9 3.1 4.4 9. 16 5.0 4.4 0 IT 7.0 3.8 3.8 8. 14 4.7 3.7 0 18 6.5 3.2 3.7 7. 13 4.3 3.5 0 19 6.1 3.0 3.6 7. 34 4.2 3.0 0 20 5.2 3.0 3.6 6. 44 4.7 2.6 0 21 4.8 3.1 3.4 6. 26 4.4 2.2 0 22 4.8 3.8 3.0 5 a 102 3.8 1.8 0 23 4.6 26 3.0 5. 54 3.6 1.5 0 24 4.4 12 3.0 4. 33 3.9 1.3 0 25 4.4 140 3.0 4. 28 3.6 1.0 0 26 4.7 29 2.9 4. 22 3.5 .90 0 27 4.3 15 2.2 4. 18 3.3 .80 0 28 4.2 11 1.8 4. 17 3.7 .60 0 29 4.2 8.9 5. 18 5.3 .40 0 30 4.6 8.6 _____ 6. 17 6.8 .20 0 31 8.9 5. 7.7 0 TOTAL 0 0 3,734.1 332.4 126.7 209. 694.8 218.3 99.10 .50 MEAN 0 0 120 10.7 4.53 6.7 23.2 7.04 3.30 016 MAX 0 C 1,980 140 9.2 5 102 15 7.7 .20 HIN 000 2.9 1.8 1. 4.8 3.3 .20 0 AC-FT 0 0 7,410 659 251 41 1,380 433 197 1.0 CAL YR 1966 TOTAL 4,455.00 MEAN 12.2 MAX 1.980 HIN AC-FT 8,840 DISCHARGE, IN CUBIC FEET PER SECOND , WATER YEAR OCTOBER 1967 TO SEPTEMBER 1968 DAY OCT NOV DEC JUL 1 0 .10 .60 .20' .40 0 0 2 0 .10 .50 .20 2. 0 0 3 0 .10 .40 .20 2. 0 0 * 0 .10 .40 .20 2. 0 0 5 0 .10 .30 .20 3. 0 0 6 0 .10 .30 .20 2. 0 0 7 0 .10 .30 .20 1. 0 .10 8 0 .10 .30 10 .80 0 .10 .40 31 TOTAL 19.90 .20 MEAN .66 .007 MAX 3.2 .10 MIN AC-FT MAX IB MIN 0 AC-FT SAN DIEGUITO RIVER BASIN 11026000 SANTA YSABEL CREEK NEAR SAN PASQUAL, CALIF. --CONTINUED DISCHARGE, IN CUBIC FEET PER SECOND HATER YEAR OCTOBER 1968 TO SEPTEMBER 1969 DAY 1 0 .01 17 188 28 12 4.9 .2 .02 2 0 .02 14 131 28 12 4.9 .2 .01 3 0 .02 11 113 40 12 5.0 .1 .01 4 0 .02 12 99 33 15 4.9 .9 .02 5 0 .02 15 84 27 18 5.3 .9 .01 6 0 .02 139 78 31 19 .1 .9 .01 7 0 .01 175 72 28 19 .9 .9 .01 8 0 .02 52 65 26 16 .6 .7 ) 9 0 .02 29 62 26 14 .5 .5 .01 10 0 .02 22 81 27 12 .3 .4 .01 11 0 .03 18 77 27 11 8.6 .2 12 0 .02 17 63 25 11 10 .1 13 0 .02 15 71 23 9.8 9.7 .98 14 0 .20 13 68 25 9.3 8.3 .84 15 0 ,C6 13 57 24 9.0 7.2 .76 16 0 .04 19 52 22 8.6 6.6 .64 17 0 .03 14 49 20 8.2 6.9 .57 18 0 .03 18 47 21 6.9 6.7 .48 19 0 .04 88 45 19 6.5 5.8 .43 2D 0 .06 86 42 17 7.0 5.0 .38 21 0 21 45 49 15 7.3 4.6 .30 22 0 101 84 87 15 7.6 4.5 .26 23 0 9.3 104 54 15 7.3 4.5 .21 24 0 36 1.640 45 IS 6.9 4.7 .18 25 0 1, 850 2,120 38 15 6.7 6.0 .15 26 0 427 849 35 14 6.3 5.2 .11 27 0 242 297 34 13 6.1 4.1 .08 28 0 72 207 33 12 5.8 3.5 .06 29 0 66 ______31 12 5.3 2.8 .05 30 01 31 -.. . 29 12 S.I 2.3 .03 31 _____ 01 21 29 5.0 .02 TOTAL 0 0 02 2, 877.01 6,133 2,008 655 305.7 171.4 27.53 .11 0 MEAN 0 0 .0<106 92.8 219 64.8 21.8 9.86 5.71 .89 004 0 MAX 0 D 01 1,850 2,120 188 40 19 10 2.2 .02 0 MIN 0 0 0 .01 11 29 12 5.0 2.3 .02 0 0 AC-FT 0 0 .04 5,710 12,160 3,980 1,300 606 340 55 .2 0 DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1969 TO SEPTEMBER 1970 DAY JUN JUL AUG SEP 1 0 .04 .87 59 1.9 1.4 .02 2 0 .03 .85 60 1.8 1.2 .02 3 0 .03 .77 28 1.8 1.0 .02 4 0 .04 .89 14 1.5 .80 .02 5 0 .04 .93 S3 1.4 .60 .02 6 0 .04 .92 20 1.3 .60 .02 7 0 .03 .91 13 1.2 .64 .02 8 01 .03 .84 9.2 1.2 .60 .02 9 . 03 .04 .82 7.7 1.2 .60 .02 10 04 .06 2.5 8.1 1.2 .51 .03 11 .04 .05 12 7.1 1.0 .37 .02 12 . 04 .06 S.8 6.4 .98 .04 .02 13 . 04 .05 3.8 S.4 .95 .04 .02 14 . 04 1.2 3.4 4.S .98 .04 .01 15 04 1.5 2.8 4.1 1.0 .04 .01 16 .04 1.5 2.2 3.6 1.2 .03 .01 17 . 04 3.0 2.0 3.4 1.7 .04 .01 18 . 05 2.5 1.9 3.3 1.8 .03 .01 19 . 06 1.7 1.6 2.6 1.4 .03 .01 20 07 1.6 1.3 2.5 l.S .02 .01 21 9 07 1.7 1.2 2.4 l.S .02 .01 22 . 07 1.6 1.2 2.4 1.5 .02 23 . 03 1.5 1.3 2.3 1.2 .02 24 . 03 1.2 1.3 2.3 1.1 .02 25 03 1.2 1.2 2.3 1.0 .02 26 04 1.1 1.1 2.4 1.0 .02 27 . 03 1.0 1.2 2.7 2.5 .02 28 . 03 .99 5.5 2.1 2.8 .02 29 . 03 .71 ______2.2 2.3 .02 30 . 03 .69 . . 2.3 1.8 .02 31 03 .78 ______2.4 ' .02 .35 0 ( MEAN 0 .031 .84 2.18 11.0 1.46 .29 .012 MAX 0 .07 3.0 12 60 2.8 1.4 .03 0 MIN 0 0 .03 .77 2.1 .95 .02 0 o AC-FT 0 1 .9 52 121 676 B7 18 .7 0 CAL VR 1969 TOTAL 12,178.71 MEAN 33.4 MAX 2,120 MIN 0 AC-FT 24,160 WTR VR 1970 TOTAL 481.68 MEAN 1.32 MAX 60 MIN 0 AC-FT 9SS SAN DIEGUITO RIVER BASIN 11027000 GUEJITO CREEK NEAR SAN PASQUAL, CALIF. LOCATION --Lat 33°06'57", long 116°57'08", in NWjNWjSE*; sec.23, T.12 S., R.I W., San Diego County, on left bank 0.3 mile upstream from Rockwood Canyon Creek-and 1.8 miles north of San Pasqual. DRAINAGE AREA.--22.5 sq mi. PERIOD OF RECORD.--December 1946 to September 1970. GAGE.--Water-stage recorder and concrete control. Altitude of gage 560 ft (from topographic map). AVERAGE DISCHARGE.--23 years (1947-70), 1.60 cfs (1,160 acre-ft per year); median of yearly mean discharge 0.4 cfs (290 acre-ft per year). EXTREMES.--Maximums and minimums (discharge in cubic feet per second, gage height in feet). Annual maximum discharge (*) and peak discharges above base (30 cfs), water years 1966-70 Date Time Disch. G.H. Date Time Disch. G. H. Date Time Disch. G.H. Nov. 22, 1965 2300 »2,S50 7.45 Dec. 19 , 1967 1315 28 2. 34 Feb. 25, 1969 1900 1,760 5.92 Dec. 10, 1965 1100 66 2.70 Mar. 10, 1969 1645 35 2.43 Dec. 29, 1965 2400 110 2.95 Jan. 21 , 1969 1315 112 2. 96 Jan. 25 , 1969 1330 *2,100 6. 20 Feb. 28, 1970 *100 2.90 Dec. 6, 1966 2015 *2,920 6.78 Feb. 6 , 1969 2100 126 3. 03 Mar. 5, 1970 Apr. 22, 1967 0845 45 2.54 Feb. 19 , 1969 1545 55 2. 62 ninimiam daily d ischarj;e, water years 1966-70 Wtr yr Date Di scharge Wtr yr Date 1966 Long periods 0 1969 Long periods 1967 do. 0 1970 Aug. 8- 25, 1970 1968 Oct. 1 to Dec. 9, 1967 Period of record: Maximum discharge, 2,920 cfs Dec. 6, 1966 (gage height, 6.78 ft), from rating curve extended above 440 cfs on basis of slope-area measurements at gage heights 5.83 and 6.30 ft; no flow at times in most years. REMARKS.--Re REVISIONS (WATER YEARS).--WSP 1315-E: 1947-48(M). WSP1715: 1956. WSP1928: Drainage area. DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1965 TO SEPTEMBER 1966 DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL 1 .30 .5 .90 .40 .10 0 .20 .2 1.4 .30 .10 0 3 .20 .0 1.4 .4 .10 0 4 .20 .80 .90 .4 .10 0 5 .10 80 .70 .3 i .10 .10 6 .10 8 .80 i3 .10 .10 7 .10 .70 .3 .10 .10 8 .10 .70 .3 .10 .10 9 9.6 .70 .30 .10 .10 10 25 .70 .30 .10 .10 11 6. .70 .30 .10 .10 12 2. , .60 .20 .20 0 13 4. , .60 .20 .10 0 14 4, t .60 .20 .10 0 IS 3. .60 .10 .10 0 16 10 0 .60 .10 .10 0 IT 3. 0 .60 .10 .10 0 18 2. 0 .50 .10 .10 0 19 1. 0 .50 .30 .10 0 20 1. 1 .50 .20 .10 0 21 1. .90 .90 .40 .20 .10 0 22 17 2. .80 .80 .40 .10 .10 0 23 24 2. .90 .70 .30 .10 0 24 .6 1. .80 .80 .50 .10 0 25 1 1. .80 1.0 1.6 .10 6 26 .5 1. .70 1.0 .90 .10 0 27 .2 1. .90 1.0 .80 .10 0 28 .70 .90 .80 .80 .70 .10 0 29 .50 5.9 .70 .70 .10 0 30 .40 26 2.3 .60 .10 .10 0 31 5.4 3.2 .50 0 TOTAL 0 448.90 124.80 53.50 50.10 22.10 6.20 2.40 .70 MEAN 0 15.0 4.03 1.73 1.79 .71 .21 .077 .023 MAX 0 249 26 9.1 8.6 1.6 .40 .20 .10 MIN 0 0 .10 .70 .70 .30 .10 0 0 AC-FT 0 890 248 106 99 44 12 4.8 1.4 WTR VR 1966 TOTAL 708.70 MEAN 1.94 MAX 249 HIM 0 AC-FT 1,410 NOTE. NO GAGE-HEIGHT RECORD NOV. 22-24. SAN DIEGUITO RIVER BASIN 11027000 GUEJITO CREEK NEAR SAN PASQUAL, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1966 TO SEPTEMBER 1967 MAY JUN JUL AUG SEP 1 0 .1 .8 .70 1.4 .0 1.2 .10 .02 2 0 .1 .6 .70 1.7 .8 .84 .10 .03 3 .40 .0 .5 .70 1.2 .7 .66 .10 .03 4 1 .0 .0 .4 1.4 1.0 .6 .57 .10 .03 5 774 .1 .4 1.1 1.0 .5 .51 .09 .04 6 1.15C .1 1.2 .80 1.2 .5 .49 .09 .04 7 161 .0 1.2 .70 1.0 .3 .47 .09 .04 8 16 .90 1.0 .70 1.1 .3 .47 .OB .05 9 8.0 .80 1.1 .70 .86 .2 .54 .08 .05 10 4 .7 .80 1.2 .70 .81 .5 .73 .07 .05 11 6 .4 .80 1.1 .80 7.1 .6 .90 .07 .04 12 10 .70 1.0 .80 11 .3 1.0 .07 .04 13 2 .6 .70 1.0 2.5 4.9 .2 1.2 .07 .04 14 2 .4 .70 1.1 9.0 2.9 .0 1.1 .07 .05 15 2 .1 .70 1.0 2.0 2.2 .84 .86 .07 .04 16 2 .0 .60 1.0 1.4 1.9 .79 .73 .07 .04 17 1 .B .60 .90 1.2 1.6 .72 .66 .07 .04 18 I .7 .60 .90 1.1 1.8 .70 .63 .06 .02 19 1 .6 .60 .90 1.0 4.B .73 .53 .06 .02 20 1 .5 .60 .90 1.0 5.5 .73 .42 .06 .02 21 1 .4 .60 .80 1.0 3.4 .67 .36 .06 .02 22 1 .3 5.0 .80 .90 20 .57 .30 .05 .01 23 1 .3 15 .90 .90 8.2 .52 .26 .05 .01 24 1 .2 4.0 .80 .80 4.4 .59 .27 .05 .01 25 1 .2 12 .80 .74 3.5 .54 .20 .06 .01 26 1 .3 4.0 .'80 .75 3.0 .55 .18 .04 .01 27 1.1 2.7 .70 .77 2.6 .53 .14 .03 0 28 1 .1 2.2 .60 .75 2.3 .62 .11 .02 0 29 1 .1 2.0 .97 2.7 .86 .10 .02 0 30 1 .3 1.8 .75 2.2 I .2 .10 .02 0 31 1 .1 2.2 1.1 1.2 .02 0 TOTAL 0 2, 160.60 68.00 29.40 38.43 107.27 32.86 16.53 1.99 .80 0 MEAN 0 6 9.7 2.19 1.05 1.24 3.58 1 .06 .55 .064 .026 0 MAX 0 1, 150 15 1.8 9.0 20 2.0 1.2 .10 .05 0 MIN g 0 .60 .60 .70 .81 .-52 .10 .02 0 0 AC-FT 0 4,290 135- 58 76 213 65 33 4.0 1.6 0 WTR YR DISCHARGE. IN CU8IC FEET PER SECOND, WATER YEAR OCTOBER 1967 TO SEPTEMBER 1968 DAY OCT NOV DEC JAN FED MAR APR MAY JUN JUL AUG SEP 1 2 0 3 0 .54 .56 .35 1.0 15 .07 .06 .03 .02 4 0 .54 .53 .31 .63 .18 .07 .06 .03 .02 5 0 6 0 .54 .46 .32 .46 15 .07 .06 .03 .02 7 0 8 0 .52 .49 4.5 .36 .14 .06 .06 .03 .02 9 0 10 10 .52 .67 1.0 .24 13 .06 .06 .03 .02 11 . 10 .52 .64 .74 .21 13 .06 .05 .03 .02 12 13 9 90 .52 .73 .59 .23 48 .06 .05 .03 .02 14 1. 0 .52 1.0 .72 .23 36 .06 .05 .03 .02 15 * 80 .52 .74 .59 .22 24 .06 .05 .03 .02 16 17 1. 18 6. B .50 .58 .59 .34 12 .06 .04 .02 .02 19 18 .45 .54 .55 .29 .10 .06 .04 ' .02 .02 20 3. 21 1. 22 90 .47 .57 .36 .28 09 .06 .04 .02 .'01 23 . 60 .43 .51 .35 .23 09 .07 .04 .02 .01 24 60 .39 .46 .34 .18 09 .06 .04 .02 .01 25 28 .54 1.3 .50 .29 .19 .08 .06 .04 .02 .01 29 .54 .79 .47 .26 .17 .08 .06 .04 .02 .01 31 ;54 .64 .28 .07 .04 .02 MEAN 1.33 .56 .56 .64 .37 .14 .062 .048 .025 .017 MAX 18 1.3 1.0 4.5 2.2 .4B .07 .06 .03 .02 MIN 0 .39 .41 .26 .14 .07 .06 .04 .02 .01 AC-FT 82 34 32 39 22 8.9 3.7 3.0 1.5 J.O SAN DIEGUITO RIVER BASIN 11027000 GUEJITO CREEK NEAR SAN PASQUAL, CALIF.--CONTINUED DISCHARGE f IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1968 TO SEPTEMBER 1969 DAY OCT NOV AUG SEP 1 .01 .01 .01 .01 7.6 40 6.1 2.9 1.5 .75 .16 .04 2 .01 .01 .01 .01 6.1 3D .0 2.9 1.6 .72 .16 .04 3 .01 .01 .01 .01 5.0 26 .0 3.1 1.6 .69 .12 .04 4 .01 .01 .01 .01 4.4 24 .5 3.5 1.5 .63 .10 .04 5 .01 .01 .01 .01 5.0 21 .0 3.7 1.7 .65 .08 .03 6 .01 .01 .01 .01 50 20 .0 3.8 1.9 .73 .08 .03 T .01 .01 .01 .01 ?6 19 .6 3.7 1.7 .73 .07 .03 8 .01 .01 .01 .01 12 IB .5 3.3 1.6 .63 .08 .03 9 .01 .01 .01 .01 9.4 18 .3 2.9 1.6 .56 .10 .03 10 .01 .01 .01 .01 7.2 22 .1 2.7 1.8 .52 .17 .03 11 .01 .01 .01 .01 6.1 26 .8 2.5 2.2 .53 .08 .03 12 .01 .01 .01 .01 5.7 22 .4 2.4 2.3 .63 .07 .03 13 .01 .01 .01 .01 5.1 25 .0 2.4 2.1 .44 .07 .03 14 .01 .01 .01 6.5 4.5 23 .4 2.4 .9 .40 .06 .03 15 .01 .01 .01 2.3 4.8 19 .B 2.3 .8 .38 .06 .03 16 .01 .01 .01 .93 6.3 16 .5 2.2 .7 .37 .08 .03 17 .01 .01 .01 .63 4.2 14 .2 2.1 .9 .35 .06 .03 18 .01 .01 .01 .52 8.0 13 .3 2.0 .8 .29 .06 .03 19 .01 .01 .01 1.2 27 12 .1 1.9 .5 .27 .05 .03 20 .01 .01 .02 2.0 18 12 .B 1.9 1.5 .33 .05 .03 21 .01 .01 .01 31 11 11 3.7 2.0 1.4 .53 .05 .02 22 .01 .01 .01 24 28 23 J.8 2.0 .5 .33 .05 .02 23 .01 .01 .01 3.1 26 16 ).8 1.9 .5 .26 .04 .02 24 .01 .01 .01 57 607 8.0 1.7 1.9 .6 .24 .04 .02 25 .01 .01 .02 727 718 7.9 3.7 1.8 .8 .25 .04 .02 26 .01 .01 .02 150 181 7.7 3.3 1.7 .5 .28 .04 .02 27 .01 .01 .02 50 45 7.3 J.O 1.7 .3 .33 .04 .02 28 .01 .01 .02 17 35 6.9 2.9 1.6 .2 .30 .04 .02 29 .01 .01 .01 24 6 . 7 Z . 9 1.5 .1 .30 .04 .02 30 .01 .01 .01 13 O.5 .24 .04 .02 31 .01 .01 10 1C .17 .04 TOTAL .31 .30 .36 1 .120.31 1.873.4 S27.3 157.2 73.7 49.00 13.83 2.22 .84 MEAN .010 .010 .012 36.1 66.9 17.0 5 24 2.38 1.63 .45 .072 .028 MAX .01 .01 .02 727 718 40 9.0 3.8 2.3 .75 .17 .04 HIN .01 .01 .01 .01 4.2 6.3 2.9 l.S .90 .17 .04 .02 AC-FT .6 .6 .7 2,220 3.720 1,050 312 146 97 27 4.4 1.7 WTR YR 1969 TOTAL 3,818.77 MEAN 10.5 MAX 727 MIN .01 AC-FT 7,57p DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1969 TO SEPTEMBER 1970 DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 .02 .11 .41 .57 .72 25 74 .34 .14 .05 .02 .02 2 .02 .13 .40 .56 .56 26 68 .32 .09 .04 .02 .02 3 .02 .13 .44 .56 .51 g.O 71 .31 .08 .03 .01 .01 4 .02 .14 .51 .57 .60 4.0 67 .31 .11 .03 .01 .01 5 .02 .20 .50 .57 .60 25 61 .30 .12 .03 .01 .01 6 .02 .39 .47 .57 .58 6.0 62 .33 .11 .03 .01 .01 7 .02 1.9 .48 .57 .58 3.0 68 .41 .12 .03 .01 .01 8 .02 .69 .57 .58 .54 2.5 67 .38 .16 .04 0 .01 9 .02 .59 1.1 .58 .52 2.0 69 .38 .28 .03 0 .01 10 .03 1.2 .71 .93 1.8 1.9 65 .37 .42 .03 0 .01 11 .04 .60 .61 .92 5.4 1.7 61 .32 .44 .03 0 .01 12 .04 .45 .58 1.1 1.6 1.4 62 .27 .28 .03 0 .01 13 .04 .46 .56 .85 1.2 1.2 60 .25 .31 .03 0 .01 14 .05 .48 .53 .79 .90 1.1 58 .23 .24 .03 0 .01 15 .06 .68 .53 .94 .84 l.l 55 .17 .19 .04 0 .01 16 .07 .96 .53 1.0 .82 1.0 58 .11 .15 .04 0 .01 17 .09 .62 .55 1.4 .80 .95 54 .09 .13 .04 0 .01 IB .09 .38 .58 .94 .80 .94 52 .08 .11 .04 0 .01 19 .09 .20 .60 .64 .80 .72 50 .09 . 10 .04 0 .01 20 .09 .20 .64 .80 .80 .76 48 .10 .08 .03 0 .01 21 .10 .26 .64 .77 .80 .78 47 .11 .08 .04 0 .01 22 .16 .37 .66 .76 .79 .82 50 .11 .08 .04 0 .01 23 .20 .38 .65 .76 .78 .81 45 .12 .07 .04 0 .01 24 .23 .38 .63 .75 .77 .80 43 .14 .06 .04 0 .01 25 .26 .33 .61 .76 .76 .83 41 .14 .06 .04 0 .01 26 .26 .34 .63 .74 .75 .91 SO .27 .05 .04 .01 .01 27 .29 .35 .62 .72 .75 .99 45 .43 .05 .04 .02 .01 28 .28 .31 .59 .69 18 .76 40 .48 .05 .04 .02 .01 29 .24 .30 .54 .55 .81 . 36 .39 .05 .04 .02 .01 30 .14 .35 .52 .54 « .89 35 .27 .05 .04 .02 .01 31 .10 .57 .59 .96 .20 .03 .02 TOTAL 3.13 13.88 17.96 23.27 44.37 120.63 16. 62 7.82 4.26 1.12 .20 .32 MEAN .10 .46 .58 .75 1.58 3.89 55 .25 .14 .036 .007 .011 MAX .29 1.9 1.1 1.4 18 26 74 .48 .44 .05 .02 .02 HIN .02 .11 .40 .54 .51 .72 35 .08 .05 .03 0 .01 AC-FT 6.2 28 36 46 88 239 33 16 8.5' 2.2 .4 .6 CAL YR 1969 TOTAL 3,852.77 MEAN 10.6 MAX 727 MIN .01 AC-FT 7,640 WTR YR 1970 TOTAL 253.58 MEAN .69 MAX 26 MIN 0 AC-FT 503 NOTE. NO GAGE-HEIGHT RECORD FEB. 14 TO NAR. 9. SAN DIEGUITO RIVER BASIN 11028500 SANTA MARIA CREEK NEAR RAMONA, CALIF. LOCATION. --Lat 33°03'08", long 116°S6'41", in SE'nSESiiSE'6 sec.11, T. 13 S. , R.I W. , San Diego County, on 3.8 miles northwest of Ramona and 4.6 miles upstream from mouth. DRAINAGE AREA.--57. 6 sq mi. PERIOD OF RECORD.--November 1912 to September 1920, October 1946 to September 1970. GAGE.--Water-stage recorder. Concrete control since October 1946. Datum of gage is 1,294.44 ft above level. Prior to Oct. 1, 1946, at datum 1.78 ft lower. AVERAGE DISCHARGE.--31 years (1913-20, 1946-70), 3.76 cfs (2,720 acre-ft per year); m of yearly mean dis- charges, 0.1 cfs (72 acre-ft per year). EXTREMES.--Maximums and minimums (discharge in cubic feet per second, gage height in feet). Annual maximum discharge (") and peak discharges above base (20 cfs), water years 1966-70 Date Time Disch. G..H. Date Time Disch. G.H. Date Time Disch. G.H. Nov. 23, 1965 0630 »1,170 4. 56 Jan. 25 , 1967 0200 48 2.08 Feb . 6 , 1969 2045 238 2.76 Dec. 10, 1965 1330 72 2. 29 Feb . 20 , 1969 0100 155 2.46 Dec. 30, 1965 0100 120 2. 54 Dec. 18 , 1967 1700 *22 1.78 Feb . 25 , 1969 2000 *1,400 4.80 Jan. 5, 1966 1100 62 2. 18 Mar . 10 , 1969 1430 93 2.18 Jan. 21 , 1969 1100 27 1.76 Dec. 6, 1966 2100 *1,800 5. 18 Jan. 25 , 1969 1445 1,220 4.62 Mar . 1 , 1970 0830 162 2.49 Mar . 5 , 1970 0430 *190 2.60 No flow for several months in ea ch year, Period of record: Maximum di scharge, 7, 140 cfs 27, 1916 (gage hei ght, 14. 1 ft, from flo odmarks , pres- ent datum) , from rating curve extended above 600 c ffon basis of slope-are a me asurement of peak flow; no flow for several months in each year. REMARKS.--Records good, No regulation above station. City of Ramona pumps water from stream above station for municipal supply. REVISIONS (WATER YEARS).--WSP 1285: 1952. WSP 1928: Drainage area. DISCHARGE, IN CUBIC FEET PER SECOND, HATER YEAR OCTOBER 1965 TO SEPTEMBER 1966 JUN Ml 1 0 .20 .8 1.6 .40 2 0 .20 .4 1.2 .70 3 0 .10 .2 1.0 .60 4 0 .10 .0 .90 .30 5 0 .10 .5 .80 .20 6 0 .10 .0 ^. .20 7 0 0 .6 8. .20 8 a 0 .3 5. .20 9 0 33 .2 2. .10 10 0 42 .1 1. .10 11 0 11 .0 1. .10 12 0 3.3 .0 1. .10 13 0 13 .90 .80 .10 14 0 22 .80 .60 .10 15 0 10 .80 .60 .10 16 0 20 .80 .50 .10 IT 0 10 .60 .40 .10 18 0 7.5 .60 .40 .10 19 0 2.0 .60 .40 .10 20 0 2.0 .80 .40 21 0 1.5 .70 .40 22 3.5 1.5 .70 .30 23 280 3.0 .70 .30 24 8.8 2.0 .70 .30 0 25 22 1.5 .60 .40 .10 26 10 1.1 .60 .50 .10 27 1.8 .90 .80 .40 .10 28 .80 .80 .70 .30 .10 29 .50 12 .60 .10 30 .40 40 3 . 1 0 31 6.1 3 0 TOTAL 0 327.80 247.00 52 .50 36.00 4.30 .10 MEAN 0 10.9 7.97 .69 1.29 .14 003 MAX 0 280 42 9.B 8.0 .70 .10 HIM 0 0 0 .60 .30 0 o AC-FT 0 650 490 104 71 8.5 .2 SAN DIEGUITO RIVER BASIN 11028500 SANTA MARIA CREEK NEAR RAMONA, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1966 TO SEPTEMBER 1967 NOV DEC JAN FEB MAR APR HAY JUN JUL 11 .9 . 20 .40 .20 2.2 .40 .10 12 .4 20 .40 .20 9.0 .40 .10 13 .9 ^ 20 .40 .50 3.2 .40 .10 14 .7 . 20 .50 6.9 1.3 .30 .10 15 .3 20 .40 1.7 .80 30 .10 16 .1 ^ 20 .40 .90 .60 .30 .10 17 .0 , 20 .30 .50 .50 .30 .10 18 .0 . 20 .30 .40 .40 .30 .10 19 .90 . 20 .30 .40 1.5 .30 .10 20 .80 20 .30 .30 2.7 .30 .10 21 .80 20 .20 .30 1.5 .20 22 .70 , 80 .20 .20 1.9 .20 23 .60 16 .20 .20 2.6 .20 24 .60 4. a .20 .20 1.4 .10 25 .60 27 .20 .20 1.0 .10 26 .90 5. 6 .20 .20 .70 .10 27 .70 2. 9 .20 .20 .70 .10 28 .90 1. 6 .10 .20 .60 .10 29 .90 1. 3 .20 .70 .20 30 .60 1. 3 ... .20 .70 .20 31 . 50 1. 3 .20 .20 TOTAL 0 0 822.30 67.40 11.40 1-6.70 38.20 10.60 2.10 MEAN 0 0 26.5 2. 17 .41 .54 1.27 .34 070 MAX 0 0 505 27 1.2 6.9 9.0 .60 .20 HIN 000 . 20 .10 .10 .20 .10 0 AC -FT 0 0 1,630 134 23 -33 76 21 4.2 -FT 1,820 DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1967 TO SEPTEMBER 1968 NOV DEC JAN FEB MAR APR MAY JUN JUL 0 .10 0 0 1.9 0 0 .20 0 .10 .10 .10 .10 .10 .10 .10 .10 .10 .10 .10 .10 .10 .10 .10 .10 .10 .10 TOTAL 0 8.90 0 1.00 2.70 1.10 MEAN 0 .29 0 .039 .087 .036 MAX 0 2.9 0 .10 1.7 .10 MIN 0 0 0 0 0 AC-FT 0 18 0 2.0 5.4 HTR YR 1968 TOTAL 17.80 MEAN .049 MAX 2.9 MIN 0 AC-FT 35 SAN DIEGUITO RIVER BASIN 11028500 SANTA MARIA CREEK NEAR RAMONA, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEET PER SECOND, HATER YEAR OCTOBER 1968 TO SEPTEHIIER 1969 JUN JUL t 0 1.5 66 3.4 .26 .15 .01 2 0 1.1 44 3.2 .26 .15 .01 3 0 .78 35 6.8 .32 .13 .02 4 0 .73 28 4.7 .45 .07 .01 5 0 .85 23 5.7 .47 .08 .02 6 0 104 21 4.1 .53 .08 .02 7 0 50 19 3.6 .51 .06 .02 8 0 9.7 15 3.2 .39 .04 .02 9 0 5.0 14 2.9 .28 .03 .02 10 0 3.1 50 2.9 .23 .04 .02 11 0 2.6 49 3.0 .18 .07 .02 12 0 2.5 25 2.6 .21 .02 .02 13 0 2.2 46 2.4 .16 .02 .02 14 1.1 1.7 34 2.4 .11 .02 .03 15 .04 1.6 20 2.2 .10 .02 .03 16 .01 1.9 15 1.9 .09 .04 .03 17 .01 1.6 13 1.5 .08 .05 .02 IB .01 16 12 1.5 .08 .03 .02 19 .01 64 12 1.3 .08 .02 .02 20 .01 59 11 1.1 .07 .02 .02 21 8.2 13 22 .93 .05 .03 .02 22 2.4 138 44 .73 .05 .02 .01 23 .21 47 21 .77 .06 .01 .01 24 1.0 269 13 .63 .0.7 .02 .01 25 270 582 7.5 .54 .07 .02 .03 26 59 278 6.5 .39 .08 .03 .03 27 24 80 5.4 .29 .12 .01 .02 28 11 58 5.4 .22 .14 .01 .02 .03 2.1 .-15 .04 TDTAL 0 0 400.20 1.794.86 688.9 65.39 5.92 1.31 MEAN 0 0 12.9 64.1 22.2 2.18 .19 .044 MAX 0 0 270 582 66 6.8 .53 .15 MIN 0 0 0 .73 3.7 .22 AC-FT 0 0 794 3.560 1,370 130 HTR YR 1969 TOTAL 2,958.12 MEAN 8.10 MAX 582 MIN 0 AC-FT 5,870 DISCHARGE, IN CUBIC FEET PER SECOND, HATER YEAR OCTOBER 1969 TO SEPTEMBER 1970 APR MAY JUN JUL 1 0 .04 .01 .01 101 2 .01 .04 '.01 .01 59 3 .01 .08 .01 .01 9.7 4 .02 .08 .01 ..01 2.4 5 .01 .12 .01 .01 69 6 .05 .01 .03 .01 7.6 7 .06 .01 .03 .01 2.4 8 .05 .01 .01 .01 1.5 9 .04 .01 .03 .01 1.2 .98 .06 .63 .01 .01 .43 .02 .01 .33 .01 .37 .11 .09 .07 .04 .05 .05 31 .04 TOTAL 259.71 MEAN 8.38 .012 MAX 101 .03 MIN .04 .01 AC-FT 515 SAN DIEGUITO RIVER BASIN 59 11029000 SAN DIEGUITO RIVER NEAR SAN PASQUAL, CALIF. LOCATION.--Lat 33°04 1 00", long 117°02 1 05", in San Bernardo Grant, San Diego County, on right bank 1.5 miles down stream from Bach Creek, 4.5 miles southeast of Escondido, and 5 miles west of San Pasqual. DRAINAGE AREA.--249 sq mi. PERIOD OF RECORD.--April 1947 to April 1956 (irrigation seasons only), May 1956 to September 1966 (discontinued). GAGE.--Water-stage recorder. Altitude of gage is 325 ft (from topographic map). EXTREMES.--Maximum discharge during water year 1966, 4,160 cfs Nov. 23 (gage height, 7.40 ft), from rating curve extended above 1,000 cfs on basis of field estimate at gage height 7.35 ft; no flow for most of time in each year. Period of record: Maximum discharge, 4,160 cfs Nov. 23, 1965 (gage height, 7.40 ft), from rating curve extended above 1,000 cfs on basis of field estimate at gage height 7.35 ft; no flow for most months in each year. REMARKS.--Records poor. Flow regulated since July 1954 by Sutherland Reservoir (see station 11024000). Diver sions for irrigation and pumping from wells along river in San Pasqual Valley above station. REVISIONS.--WSP 1928: Drainage area. DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1965 TO SEPTEMBER 1966 NOV. 23, 1965... 1,380 DEC. 13, 1965... 2.8 DEC. 17, 1965... 34 DEC. 30, 1965... 130 DEC. 9...... 1.8 14...... 80 18...... 8.0 31...... 20 10...... 50 15...... 74 19...... 2.4 JAN. 1, 1966... 4.1 11...... 48 16...... 66 20...... 20 2...... 1.0 12...... 7.0 MONTH CFS-DAYS MAXIMUM MINIMUM MEAN RUNOFF IN ACRE-FEET NOVEMBER 1965...... 1,380 1,380 0 46.0 2,740 DECEMBER...... 445 130 0 14.4 883 CAL YR 1965...... 1,825 1,380 0 5.00 3,620 ...... 5.1 4.1 0 .16 10 ...... 1,830.1 1,380 0 5.01 3,630 NOTE. FLOW OCCURRED ONLY ON DAYS LISTED ABOVE. 60 SAN DIEGUITO RIVER BASIN 11030000 SAN DIEGUITO RIVER AT LAKE HODGES, CALIF. LOCATION.--Lat 33°02'48", long 117'07'33", in NE!(SE>i;NW3i; sec.18, T.13 S. , R.2 W. , San Diego County, on right bank 800 ft upstream from Lake Hodges Dam and 6.2 miles southwest of Escondido. DRAINAGE AREA.--303 sq mi. PERIOD OF RECORD.--January 1916 to September 1968 (discontinued). Published a ar Bernardo" prior to October 1920 and as "near Escondido" October 1920 to September 1925. GAGE.--Nonrecording gage. Datum of gage is 200.0 ft above n a level. Prior to January 1919, at different datum (prior to completion of dam). REMARKS.--Records of total inflow represent all the water reaching Lake Hodges, including precipitation on the lake and supplemental water from Colorado River delivered through aqueduct of San Diego County Water Author ity. Total inflow computed on basis of records of storage, release (draft), spill, leakage, and evaporation. Records of net inflow exclude supplemental water from Colorado River. Area and capacity tables for lake are based on a resurvey in 1948. Evaporation from reservoir surface computed on basis of evaporation from Colo rado land pan using a coefficient of 0.80, excepting the period October 1957 to June 1963, when the mass- transfer method was used. Lake Hodges Dam was completed and storage began Feb. 1, 1919. Capacity of lake at spillway level (gage height, 115.0 ft), 33,550 acre-ft. Dead storage, 1,160 acre-ft below lowest outlet at age height 54.0 ft, included in these records. Water drawn from Lake Hodges passes through a conduit to fan Dieguito re-regulating reservoir, from which it is released as required for municipal use. Flow regulated since July 1954 by Sutherland Reservoir (see station 11024000). Diversions for irrigation above Lake Hodges. COOPERATION.--Records computed in cooperation with city of San Diego. REVISIONS (WATER YEARS).--WSP 1091: 1946. WSP1121: 1947. WSP173S: 1958-60. MONTHLY NET INFLOW, WATER YEARS OCTOBER 1965 TO SEPTEMBER 1968 MONTH I6HT (ACRE- IN (ACRE- RATION PLUS EETlt FEET) FEET) INCLUDED LAKE HODGES (ACRE- FEET) CAL YR 1965. .... 71.25 4,508 -13 27 47 APRIL...... 65.80 3,186 -804 81 96 MAY...... 60.95 2,207 -979 ' 90 91 JUNE...... 56.54 1,488 -719 63 82 459 -474 42 48 198 -261 24 16 .... - -950 4,658 677 114 -84 72 7 121 +7 0 4 DECEMBER...... 82.65 8,403 +8,282 104 42 .... - +3,747 4,779 620 JANUARY 1967...... 83.08 8,585 +182 134 72 391 8,590 +5 0 95 102 8,508 -82 171 105 196 386 .... 80.50 7,535 -931 867 179 116 6,636 -899 817 151 JULY...... 74.20 5,342 -1,294 1,150 192 AUGUST...... 72.50 4,850 -492 308 162 .... 72.10 4,738 -112 0 116 HTR YR 1967...... - +4,540 3,934 1,241 3,882 -856 767 115 NOVEMBER...... 3,356 -526 580 56 DECEMBER...... 66.70 3,391 +35 316 29 CAL YR 1967. JANUARY 1968.. 65.00 3,010 -381 397 55 55 FEBRUARY...... 63.75 2,750 -260 331 104 104 MARCH...... 62.70 2,542 -208 549 401 401 APRIL...... 58.34 1,758 -784 698 -14 -14 MAY...... 53.54 1,104 -654 487 -101 -101 JUNE...... 47.20 531 -573 476 -52 -52 JULY...... 37.62 150 -381 300 -61 -61 AUGUST...... 37.10 139 -11 SEPTEMBER..... 36.43 126 -13 WTR YR 1968. -4,612 4,901 557 849 849 t GAGE HEIGHT AT 0800 HOURS ON LAST DAY OF MONTH. NOTE. FOR MONTHS WHEN INFLOW TO THE LAKE WAS SMALL AND OTHER QUANTITIES MERE LARGE, DISCORDANT FIGURES OF NET INFLOW MAY APPEAR. THIS ARISES PRIMARILY FROM THE DIFFICULTY OF COMPUTING NET INFLOW AS THE RESIDUAL OF SEVERAL LARGER QUANTITIES WHICH ARE NOT SUSCEPTIBLE TO MEASUREMENT WITH A PRECISION NECESSARY TO PRODUCE A FINAL ANSWER WITHIN DESIRABLE LIMITS OF ACCURACY. SAN LUIS REY RIVER BASIN 11031500 AGUA CALIENTE CREEK NEAR WARNER SPRINGS, CALIF. LOCATION.--Lat 33°17'19", long 116°39'11', in San Jose del Valle Grant, San Diego County, on downstream end of righfpier of Warner Springs. DRAINAGE AREA.--19.0 sq mi. PERIOD OF RECORD.--February 1961 to September 1970.. GAGE.--Water-stage recorder. Altitude of gage is 2,950 ft (from topographic map). Prior to Jan. 29, 1966, at site 120 ft upstream at present datum (used as supplementary gage since Dec. 12, 1968). AVERAGE DISCHARGE.--9 years, 1.44 cfs (1,040 acre-ft per year. EXTREMES.--Maximums and minimums (discharge in cubic feet per seco ige height in feet). Annual maximum discharge (*) and peak discharges above (50 cfs), water years 1966-70 Dat e Time Disch. G.H. Date Time Disch. .H. Date Time Disch. Nov . 23, 1965 0030 *740 aS. 60 Dec. 19, 1967 0300 1.2 .10 Sept. 5, 1969 1900 114 Dec 29, 1965 - 136 4.78 Jan. 25, 1969 1430 495 5.92 Mar. 2, 1970 1130 Dec . 6, 1966 2030 *1,200 5.18 Feb. 6, 1969 1900 116 4.93 Jan . 24, 1967 - Feb. 25, 1969 2300 564 6.36 a At p resent site. No fl Pe rd: Maxi charge, 1,200 cfs :. 6, 1966 (gage height, 5.18 ft), from rating extended above 240 cfs; no flow for most of time in each year. above station DAY OCT NQV DEC iIMn 1 0 1.0 .0 .40 .4 .40 .30 .20 2 0 1.0 .5 .50 .4 .30 .30 .20 3 0 1.0 .0 .60 .4 .40 .30 .10 4 0 1.0 .7 .50 .4 .40 .40 .10 5 0 1.0 .3 .70 .4 .40 .40 .10 6 0 1.0 .5 1.4 .3 .30 .40 .10 7 0 1.0 .2 3.4 .3 .30 .40 .10 8 0 1.0 .1 1.4 .2 .30 .40 .10 9 0 4.5 .0 .80 .2 .20 .40 .10 10 0 5.0 .7 .70 .1 .20 .30 .10 tl 0 2.5 .5 .70 .1 .20 .30 .10 12 0 1.5 .4 .70 .1 .20 .30 .10 13 0 1.2 .2 .70 .0 .20 .30 .10 14 0 1.0 .1 1.1 .0 .20 .30 .10 15 0 .90 .0 1.3 .0 .20 .30 .10 16 0 .90 .90 2.0 .90 .20 .20 .10 17 0 .90 .80 2.0 .90 .20 .20 .10 18 0 .90 .80 2.0 .80 .20 .20 .10 19 0 .90 .70 2.0 .80 .30 .20 .10 20 0 .90 .70 1.9 .80 .30 .20 .10 21 0 .90 .60 1.9 .70 .30 .10 .10 22 81 .90 .60 1.9 .70 .30 .10 .10 23 164 .90 .50 1.7 .60 .30 .10 .10 24 7.0 .90 .50 1.7 .60 .30 .10 .10 25 3.7 .90 .50 1.7 .60 .40 .10 .10 26 2.4 .90 .50 1.6 .60 .40 .10 .10 27 1.4 .90 .50 1.6 .60 .40 .30 .10 28 1.2 .90 .50 1.4 .60 .40 .20 .10 29 1.1 40 .50 .50 .40 .20 .10 30 1.0 10 .50 .50 .40 .20 .10 31 6.0 .30 .40 .20 TOTAL 0 262.8 92.30 46.60 38.30 28.90 9.00 7.80 3.20 0 MEAN 0 8.76 2.98 1.50 1.37 .93 .30 .25 .11 0 MAX 0 164 40 5.0 3.4 1.4 .40 .40 .20 0 HIN 0 0 .90 .30 .40 .40 .20 .10 .10 0 AC-FT 0 521 183 92 76 57 18 15 6.4 0 994 HTR VR 1966 TOTAL 488.90 MEAN 1.34 MAX 164 MIN 0 AC-FT 970 NOTE. NO GAGE-HEIGHT RECORD NOV. 24 TO JAN. 29. SAN LUIS REV RIVER BASIN 11031500 AGUA CALIENTE CREEK NEAR WARNER SPRINGS, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1966 TO SEPTEMBER 1967 DAY OCT NOV DEC JAN FEB MAR APR HAY JUN JUL AUG SEP 1 0 0 0 .10 0 .20 3.6 .60 .20 .10 .10 2 0 0 0 .10 0 .30 3.1 .50 .20 .10 .10 3 0 0 0 .10 .20 .30 2.6 .40 .20 .10 .10 4 0 0 0 .10 .30 .30 2.6 .40 .20 .10 0 5 0 31 0 .10 .30 .10 2.4 .40 .20 .10 0 6 0 315 0 .10 .20 0 2.2 .40 .20 .10 0 7 c 116 0 .10 .20 0 2.1 .40 .20 .10 0 a .10 21 0 .10 .20 .10 2.0 .40 .20 .10 0 9 0 12 0 .10 0 0 1.6 .30 .20 .10 0 10 0 11 0 .10 .10 0 2.0 .30 .20 .10 0 11 0 6.0 .10 .10 .10 .30 .9 .30 .20 .10 0 12 0 6.0 .10 .10 .10 .60 .6 .30 .10 .10 0 13 0 4.5 0 0 2.5 .70 .6 .30 .10 .10 0 14 0 3.5 0 0 2.6 1.6 .5 .30 .10 .10 0 15 0 2.0 0 0 1.0 2.1 .4 .20 .10 .10 0 16 0 1.0 0 0 .20 2.1 1.3 .20 .10 1.1 0 17 0 .50 0 0 .10 2.2 1.1 .20 .10 .'10.10 0 IB 0 .10 0 0 .10 2.4 1.0 .20 .10 0 19 0 0 0 0 .10 3.0 1.0 .20 .10 .10 0 20 0 0 0 0 .10 3.9 .90 .20 .10 .10 0 21 0 0 C 0 .10 5.1 .60 .20 .10 .10 0 22 0 0 .10 0" .10 14 .60 .20 .10 .10 0 23 0 0 .20 0 .10 10 .70 .20 .10 .10 0 24 0 0 .10 0 .10 9.5 .70 .20 .10 .10 0 25 0 0 13 0 .10 9.5 .70 .20 .10 .10 0 26 0 0 15 0 0 6.1 .50 .20 .10 .10 0 27 0 0 5.0 0 0 7.0 .60 .20 .10 .10 0 26 0 0 1.0 0 0 5.7 .70 .20 .10 .10 0 29 0 0 .70 0 4.9 .70 .20 .10 .10 0 30 0 0 .40 ----- 0 4.1 .60 .20 .10 .10 0 31 0 .20 .10 .60 .10 .50 TOTAL 0 .10 .30 MEAN 0 .003 17.1 1.16 .043 .29 3.28 1.45 .26 .14 .15 .010 MAX 0 .10 315 15 .10 2.6 14 3.6 .60 .20 1.1 .10 MIN 0 0 0 0 0 0 0 .50 .20 .10 .10 0 AC-FT 0 .2 1,050 71 2.4 IB 195 69 17 8.3 B.9 .6 OISCHARff- '" « " 1C FEET PER SEC DND, MATER YEAR OCTOB ER 1967 0 SEPTEH 3ER 1966 DAY OCT NOV DEC JUN JUL AUG SEP 1 0 .10 C 0 0 .10 0 0 2 0 »10 0 0 .10 .10 0 0 3 0 .10 0 0 .10 .10 0 0 4 0 0 0- 0 0 .10 0 0 5 0 0 0 0 0 .10 0 0 6 0 D 0 0 0 .10 .10 0 7 0 0 0 0 0 .10 .10 0 B 0 0 0 .20 0 .20 .ID 0 9 0 0 0 .20 0 .20 .10 0 10 0 0 .10 .20 0 .20 .10 0 11 0 0 .10 .10 0 .10 0 0 12 0 0 .10 .10 0 .10 0 0 13 0 0 .10 .10 0 .10 0 0 14 0 0 .20 .10 0 .10 0 0 15 0 0 .20 .10 0 .10 0 0 16 0 0 .10 .10 0 .10 0 0 17 0 0 .10 .10 0 0 0 0 IB .10 0 .10 .10 0 0 0 0 19 .40 0 .10 .10 0 0 0 0 20 .20 0 .10 .10 0 0 0 0 21 .10 0 .10 0 0 0 0 0 22 .10 0 .10 0 0 0 0 .10 23 .10 0 .10 0 0 0 0 0 24 .10 0 .10 0 0 0 0 0 TOTAL 0 2.20 .30 1.60 1.60 .70 .90 MEAN 0 .071 .010 .062 .052 .023 .017 MAX 0 .40 .10 .20 .20 .10 HIN 0 0 0 0 0 0 AC-FT 0 4.4 .6 3.6 3.2 1.4 CAL YR 1967 TOTAL 209 20 MEAN . 7 MAX 15 H N 0 AC-FT 415 IB SAN LUIS REY RIVER BASIN 11031SOO AGUA CALIENTE CREEK NEAR WARNER SPRINGS, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEET PER SECOND. MATER YEAR OCTOBER 1968 TO SEPTEMBER 1969 OCT NOV DEC JAN FEB MAR APR HAY JUN JUL 1 0 21 114 .5 3.4 .3 .37 2 0 20 3D .2 3.4 .3 .48 3 0 18 28 .8 3.6 .4 .48 .05 4 0 16 26 .2 4.2 .3 .48 .05 5 0 20 25 .6 4.9 .2 .48 9.2 6 0 56 24 .9 6.3 .0 .48 5.5 7 0 32 22 .4 4.7 .0 .48 2.9 8 0 21 20 .1 3.8 .0 .42 1.9 9 0 18 18 .8 3.4 .1 .42 10 0 16 20 .1 3.4 .2 .37 11 0 15 18 .5 2.9 .3 .42 12 0 14 16 .9 2.7 .2 .42 13 0 13 15 .9 2.7 .0 .37 14 1.1 12 14 15 .11 11 13 .9 2.7 .76 .37 16 0 10 12 17 0 9.1 12 .5 2.6 .76 .48 18 0 8.1 12 .5 2.4 .60 .37 19 0 7.0 11 .2 2.3 .54 .27 20 .25 6.5 10 .8 2.3 .48 .27 21 5.5 8.B 12 .8 2.3 .42 .27 22 1.2 11 16 .8 2.1 .37 .27 23 .23 25 14 .8 2.1 .37 .27 24 2.0 263 12 .6 2.1 .37 .27 25 178 31B 10 .8 2.0 .37 . .27 26 122 281 10 .4 1.9 .37 .27 27 60 114 8.9 .1 1.9 .37 7.4 28 46 126 8.2 .1 1.9 .37 .32 29 40 7.8 .4 1.6 .37 .13 30 32 7.8 .4 1.6 .37 .13 31 25 " 7.5 1.4 .11 .05 T07AL 0 0 0 .81 25.82 MEAN 0 0 0 16.6 53.2 16.5 4 99 2.84 .60 .58 091 .86 MAX 0 0 0 178 318 114 .8 6.3 1.4 7.4 .13 9.2 HIM 0 0 0 0 6.5 7.5 .1 1.4 .37 .11 .05 .05 AC-FT 0 0 0 1,020 2,960 1.140 97 174 47 35 5.6 51 WTR YR 1969 TOTAL 2,686.12 MEAN 7.91 MAX 318 MIN 0 AC-FT 5,720 DISCHARGE , IN CUBIC FEET PER SECOND , WATER YEAR OCT06ER 1969 TO SEPTEMBER 1970 OCT JUN JUL 1 .04 .01 .02 0 .04 14 .34 .20 .13 2 .04 .01 .02 0 .05 34 .34 .20 .13 3 .05 .01 .02 0 .06 12 .33 .20 .13 4 .05 .01 .02 0 .06 6.9 .33 .20 .13 5 .04 .02 .02 0 .06 6.6 .33 .20 .13 6 .04 .04 .02 0 .06 7.5 .32 .20 .13 7 .02 .05 .02 0 .06 4.2 .32 .20 .13 8 .02 .04 .02 0 .06 2.5 .27 .20 .13 9 .02 .04 .02 0 .06 1.0 .27 .20 .11 10 .03 .05 .02 .01 .13 .60 .23 ' .20 .11 11 .03 .03 .02 .01 .06 .60 .27 .20 .11 12 .03 .02 .02 .01 .05 .50 .32 .20 .11 13 .04 .02 .02 .01 .05 .48 .32 .20 .11 14 .04 .02 .02 .01 .05 .45 .32 .16 .11 15 .05 .03 .02 .01 .05 .43 .32 .16 .11 16 .04 .03 .02 .02 .04 .41 .27 .13 .11 17 .04 .02 .02 .02 .04 .39 .23 .13 .08 18 .05 .02 .02 .01 .04 .39 .23 .13 .08 19 .05 .02 .02 .01 .04 .38 .23 .13 .06 20 .05 .02 .02 .01 .04 .37 .23 .16 .06 21 .04 .02 .02 .02 .04 .36 .20 .16 .06 22 23 24 .04 .02 .01 .02 .05 .35 .16 .16 .04 25 .04 .02 0 .02 .05 .35 .16 .16 .04 26 .03 .02 0 .03 .05 .35 .16 .16 .04 27 .03 .02 0 .03 .05 .35 .20 .16 .02 . 26 .02 .02 .01 .03 .08 .34 .20 .13 .02 29 .01 .02 0 .03 .. » .34 .20 .13 .02 30 .01 .02 0 .03 » .34 .20 .13 3 31 .01 0 .03 .34 .13 TOTAL 1.08 .71 .48 .41 1.50 97.54 7.66 5.24 2.56 MEAN .035 .024 .016 .013 .054 3.15 .26 .17 .066 MAX .05 .05 .02 .03 .13 34 .34 .20 .13 MIN .01 .01 0 0 .04 .34 .16 .13 0 AC-FT 2.1 1.4 1.0 .8 3.0 193 15 10 5.1 WTR YR 1970 TOTAL 117.20 MEAN .32 MAX 34 MIN 0 AC-FT 232 64 SAN LUIS REY RIVER BASIN 11033000 WEST FORK SAN LUIS REY RIVER NEAR WARNER SPRINGS, CALIF. LOCATION.--Lat 33°17'50", long 116°45'30", in San Jose del Valle Grant, San Diego County, on left bank 0.1 mile downstream from small unnamed tributary, 2.5 miles upstream from mouth, and 7.5 miles west of Warner Springs. DRAINAGE AREA.--25.5 sq mi. PERIOD OF RECORD.--January 1913 to November 1915, October 1956 to September 1970. GAGE.--Water-stage der. Altitude of gage is 2,800 ft (from topographic map). Prior to Oct. 1, 1956, at different datum. AVERAGE DISCHARGE.--15 years (1913-15, 1957-70), 8.29 cfs (6,010 acre-ft per year) median of yearly mean dis- charges, 2.4 cfs (1,700 acre-ft per year). EXTREMES.--Maximums and minimums (discharge in cubic feet per second, gage height in feet). Annual maximum discharge (*) and peak discharges above base (100 cfs), water years 1966-70 Date Time Disch. G.H. Date Time Disch. G.H. Date Time Disch. G.H. Nov. 22, 1965 2200 *1,690 10.25 Apr. 11, 1967 1315 167 5.41 Jan 25, 1969 1330 3,900 alO.12 Dec. 29, 1965 2200 442 7.13 Apr. 22, 1967 0500 295 6.03 Feb. 6, 1969 1145 485 5.70 Feb. 25, 1969 1730 3,180 9.50 Dec. 6, 1966 1930 *4,200 11.87 Mar. 8, 1968 1230 *315 6.13 Mar. 21, 1969 1545 158 4.33 Jan. 24, 1967 2315 670 7.41 Mar. 13, 1967 2245 371 6.37 Jan. 21, 1969 1100 260 5.85 Mar. 2, 1970 0930 *260 4.98 urn daily discharge, water y Discharge Wtr yr Date Discharge 1966 Many days 1969 Dec. 11-19, 1968 .03 1967 Oct. 9-21, 1966 1970 Dec. 11, 1969 .03 1968 Oct. 23, 1967 Period of record: Maximum discharge, 4,200 cfs Dec. 6, 1966 (gage height, 11.87 ft), from rating CUT extended above 250 cfs on basis of slope-area measurement of peak flow; no flow at times in most years. REVISIONS.--WSP 1928: Drainage area. DISCHARGE. IN CUBIC FEET PER SECOND. WATER VEAR OCTOBER 1965 TO SEPTEMBER 1966 OAT OCT NOV DEC JAN 1 .10 .10 10 34 13 9.4 4.6 .9 .70 .30 .20 .20 2 .10 .10 10 24 12 10 4.3 .8 .60 .30 .20 .20 3 .10 .10 9.0 22 11 11 4.2 .60 .30 .20 .20 4 .10 .10 9.0 21 11 11 4.0 .60 .30 .20 .10 5 .10 .10 9.0 20 11 12 3.8 .60 .30 .20 .10 6 .10 .10 9.0 18 10 11 3.7 .60 .30 .20 .10 7 .10 .10 9.0 16 10 10 3.7 .50 .30 .20 .10 8 .10 .10 9.0 15 20 9 3.5 .60 .30 .20 .10 9 .10 .10 20 14 18 8 3.4 .60 .30 .20 .10 10 .10 .10 27 13 17 8. 3.5 .60 .30 .20 .10 11 .10 .20 20 12 16 3.3 .50 .30 .20 .10 12 .10 .20 18 11 14 3.3 .50 .30 .20 .10 13 .10 .20 16 10 13 3.2 .50 .40 .20 .10 14 .20 .20 14 9.4 12 3.0 .40 .40 .10 .20 15 .20 .30 13 9.2 12 3.0 .40 .40 .10 .20 16 .20 .40 13 9.2 12 2.8 .40 .40 .10 .20 IT .20 .50 12 9.0 12 2.8 .40 .30 .10 .20 18 .20 .50 12 9.0 12 2.9 .40 .30 .10 .20 19 .20 .50 11 9.0 11 3.6 .40 .30 - .10 .20 20 .20 .40 11 8.9 11 3.7 .40 .30 .10 .20 21 .10 .40 10 8.8 11 3.1 .90 .40 .30 .10 .20 22 .10 346 12 8.4 10 3.2 .90 .40 .30 .10 .20 23 .10 236 11 8.2 10 3.0 .90 .40 .30 .10 .20 24 .20 28 11 8.0 10 2.7 .90 .40 .30 .10 .20 25 .20 63 10 7.5 9.8 2.4 .80 .40 .30 .10 .20 26 .20 20 10 7.2 9.7 2.3 .BO .40 .30 .20 .10 27 .10 12 10 7.0 9.5 2.2 .BO .30 .30 .10 .10 28 .10 11 10 6.8 9.3 2.1 .80 .30 .30 .10 .10 29 .10 10 102 6.6 - . 2.0 .70 .30 .30 .10 .10 30 .10 10 94 11 . . 2.0 .70 .30 .30 .10 .10 31 .10 41 15 .70 .30 .20 TOTAL 4.10 740.80 582.0 388.2 337.3 242. 95.3 37.80 13.90 9.70 4.60 4.50 MEAN .13 24.7 IB. 8 12.5 12.0 7.1 3.18 1.22 .46 .31 .15 .15 MAX .20 346 102 34 20 4.6 1.9 .70 .40 .20 .20 MIN .10 .10 9.0 6.6 9.3 4. 2.0 .70 .30 .30 .10 .10 AC -FT 8.1 1.470 1.150 770 669 48 189 75 28 19 9.1 B.9 CAL YR 1965 TOTAL 2,237 .60 MEAN 6.13 MAX 346 MIN .10 AC-FT 4,440 NOTE. NO GAGE-HEIGHT RECORD JAN. 3 TO FEB. 17. SAN LUIS REY RIVER BASIN 11033000 WEST FORK SAN LUIS REY RIVER NEAR WARNER SPRINGS, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1966 TO SEPTEMBER 1967 DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 .10 .10 .40 8.4 25 5.9 19 39 13 2.1 .44 .20 2 .10 .10 .40 8.3 24 5.9 24 34 11 2.0 .40 .22 3 .10 .20 3.5 B.2 22 5.7 IB 32 10 2.0 .38 .21 4 .10 .30 4.3 B.I 20 12 16 30 9.0 1.9 .36 .21 5 .10 .30 330 B.O 19 11 35 30 9.0 1.9 .34 .19 6 .10 .10 1,180 7.6 IS 9. 21 28 9.1 1.8 .32 .18 7 .10 .10 690 7.4 13 B. IB 26 8.8 1.8 .30 .18 8 .10 .10 297 7.1 12 7. IB 25 8.6 1.8 .29 .18 9 0 .10 100 6.6 12 7. 16 24 8.4 1.7 .26 .IB 10 0 .10 SO 6.3 11 6. 14 29 8.2 1.7 .27 .18 11 (3 .10 30 6.0 10 13 56 25 8.0 1.6 .26 .17 12 0 .1C 20 5.7 10 12 42 23 8.3 1.6 .25 .17 13 0 .10 17 5. 5 10 95 49 21 11 1.6 .25 4.3 14 0 .10 16 5.3 9.2 100 4B 19 9.6 1.5 .26 2.B IS 0 .10 15 5.1 9.1 32 38 18 8.1 l.S .27 .21 16 0 .10 14 5.1 9.2 24 34 17 7.0 1.4 .26 .20 17 0 .10 13 4.9 8.6 21 30 16 6.3 1.4 .26 .20 18 0 .10 12 4.B 8.7 18 32 16 5.4 1.3 .26 .20 19 0 .10 11 4.6 8.3 16 51 IS 5.1 1.3 .26 .20 20 0 .10 11 4.6 7.7 14 47 14 5.1 1.2 .25 .19 21 0 .10 10 4.5 7.1 13 66 13 S.I 1.1 .24 .19 22 .10 .10 9.6 17 7.0 13 174 13 4.B 1.0 .27 .19 23 .10 .10 9.2 56 7.1 12 76 12 4.3 1.0 .25 .19 24 .10 .10 9.0 153 7.0 11 65 13 4.1 .90 .24 .19 25 .10 .20 8.5 171 6.5 11 57 12 3.5 .80 .24 .20 26 .10 .30 8.3 70 6.5 11 53 11 3.0 .70 .23 .IB 27 .10 .30 8.0 61 5.9 11 SO 10 2.5 .65 .22 .IB 2B .10 .30 7.8 53 5.9 10 46 10 2.4 .60 .21 .IB 29 .10 .40 7.6 4B 14 51 11 2.3 .55 .20 .19 30 .10 .40 7.4 44 12 42 12 2.2 .52 .19 .IB 31 .10 8.5 34 15 13 .48 .20 TOTAL l.BO 4.80 2,908.50 841.1 316.8 SSB.2 1,306 611 203.2 41.40 8.45 12.44 MEAN .058 .16 93. B 27.1 11.3 1B.O 43.5 19.7 6.77 1.34 .27 .41 MAX .10 .40 1,180 171 25 100 174 39 13 2.1 .44 4.3 MIN 0 .10 .40 4.5 5.9 5.7 14 10 2.2 .4B .19 .17 AC-FT 3.6 9.5 5,770 1,670 628 1,110 2,590 1,210 403 B2 17 25 CAL YR 1966 TOTAL 4,048.60 MEAN 11.1 MAX 1,180 MIN 0 AC-FT 8,030 H7R VR 1967 TOTAL 6,813 .69 MEAN 18.7 MAX 1,180 MIN 0 AC-FT 13,510 NOTE. NO GAGE-HEIGHT RECORD DEC. 7 TO JAN. 12, JUNE 26 TO AUG. 14. DISCHARGE, IN CUBIC FEET PER SECOND, HATER YEAR OCTOBER 1967 TO SEPTEMBER 1968 NOV DEC JAN FEB MAR APR ' MAY JUN JUL .11 .36 4.0 5.3 1.8 3.5 .11 .33 3.7 4.3 1.6 30 .10 .33 3.5 4.0 l.B 1 .10 .33 3.2 3.8 1.8 .3 .08 .33 2.9 3.6 l.B .4 .07 .30 2.9 3.4 1.8 .1 .06 .29 2.7 3.4 2.4 .6 .07 .29 2.7 3.4 73 .1 .08 .27 2.9 3.4 27 .9 .OB .26 2.9 3.5 16 .8 .OB .28 4.9 3.5 11 .7 .08 .26 5.2 3.4 8.6 .6 .07 .24 4.0 4.5 7.6 .4 .07 .24 3.6 B.4 8.9 .3 .08 .24 3.6 5.0 6.B .0 .08 .2* 4.2 4.0 6.1 .0 .08 .24 3.7 3.5 6.1 .2 .07 .OB .40 3.3 3.1 5.6 .0 .OB .96 50 3.0 2.8 5.3 .8 6.8 10 2.9 2.6 4.7 .1 .06 .08 4.1 5.0 2.9 2.3 4.2 .8 .05 .09 .06 .OB .57 4.1 2.9 2.1 4.2 .4 .51 4.9 2.9 2.0 4.0 .4 .46 6.5 2.9 1.9 3.7 .4 27 .45 6.8 6.4 1.9 3.6 .4 28 .41 7.2 11 1.8 3.5 .0 29 .37 6.7 6.5 l.B 3.3 a q 30 .36 5. 5 4.5 3.2 B 9 31 .10 -- 4.7 5. 5 3.1 TOTAL 6. 20.67 126.93 121.1 97.3 241.5 168.5 6 MEAN .69 4.09 3.91 3.36 7.79 5.62 2 MAX I 6.8 SO 11 B.4 73 30 MIN .06 .24 2.7 1.8 l.B 2.9 AC-FT 41 252 240 193 479 334 1 CAL YR 1967 TOTAL 4,052.32 MEAN 11.1 HTR YR 1968 TOTAL B70.60 ' *£AN 2.38 SAN LUIS REY RIVER BASIN 11033000 WEST FORK SAN LUIS REY RIVER NEAR WARNER SPRINGS, CALIF.--CONTINUED DISCHARGE , IN CUBIC FEET PER SECOND , MATER YEAR OCTOBER 1968 TO SEPTEMBER 1969 DAY OCT NOV DEC j«n SEP 1 .11 .12 5.4 1.2 .25 .16 2 .11 .12 .06 .17 31 125 42 20 5.4 1.2 .22 .16 3 .13 .12 .06 .17 26 115 42 19 5.5 1.1 .20 .16 4 .13 .12 .06 .17 23 101 41 18 5.4 .93 .19 .15 5 .13 .12 .05 .17 50 87 41 18 5.2 .86 .18 .19 6 .13 .12 .05 . 7 240 B5 40 22 5.0 .89 .18 .IB 7 .13 .12 .05 . 7 108 78 39 17 .0 .78 .20 .24 8 .13 .12 .04 . 7 68 73 39 15 .1 .70 .20 .23 9 .11 .12 .0* . 7 57 72 3B 13 .5 .64 .20 .25 to .11 .12 .04 . 7 49 76 37 13 .2 .60 .20 .24 11 .11 .12 .03 .17 45 76 36 12 .5 .64 .20 .23 12 .11 .12 .03 .17 43 79 35 11 .B .68 .21 .IB 13 .11 .12 .03 .17 39 75 34 11 .7 .59 .22 .18 1* .11 .13 .03 31 35 69 33 10 4.6 .46 .22 .18 15 .13 .16 .03 11 38 64 32 10 4.3 .41 .22 .18 16 .12 .13 .03 3.4 54 61 31 9. 4.3 .35 .19 .18 17 .12 .13 .03 2.0 36 59 31 8. 4.3 .39 .18 .18 .12 .13 .03 1.5 .IB 18 19 .12 .13 .03 6.7 48 57 29 7. 3.3 .4 .18 .18 20 .12 .12 .05 23 49 56 29 7. 3.0 .4 .16 .18 21 .12 .09 .05 137 47 95 28 7.5 3.2 .4 .15 .IB 22 .12 .09 .05 48 48 90 27 7,3 3.2 .4 .12 .22 23 .12 .09 .04 16 121 66 26 6.8 3.0 .4 .12 .22 24 .12 .09 .04 180 932 59 25 6.5 2.7 .4 .11 .22 25 .12 .09 .05 856 1,480 54 25 6.5 2.5 .4 .11 .22 26 .12 .08 4.3 450 342 51 24 5.9 2.2 .46 .10 .22 27 .12 .08 1.3 200 194 49 23 6.4 2.1 .46 .09 .22 28 .12 .08 .26 100 167 47 22 6.3 2.1 .43 .09 .22 29 .12 .07 .20 58 46 22 6.1 1.9 ..37 * * .22 30 .12 .07 .18 46 44 21 5.5 1.6 .33 .22 31 .12 .17 40 5.4 .32 Il6 5.97 MEAN .12 .17 .20 MAX .13 .16 4.3 856 1,480 163 42 22 6.B 1.2 .25 .25 KIN .11 .07 .03 .17 23 42 21 5.4 1.6 .32 .09 .15 AC-FT 7.4 6.6 15 37 11 12 NOTE NO GAGE-HEIGHT RECORD APR 3 TO MAY 5. DISCHARGE > IN CUBIC FEET PER SECOND , WATER YEAR OCTOBER 1969 TO SEPTEMBER 1970 DAY 1 .22 .27 .07 .25 .90 81 .5 2.3 .46 .29 .07 .08 2 .22 .27 .07 .22 .90 110 .2 2.0 .46 .29 .07 .07 3 .22 .27 .07 .22 .90 25 .C l.a .46 .25 .07 .07 4 .22 .27 .07 .22 .90 13 .OB 5 .22 .27 .OB .20 .90 31 .9 1.4 .45 .20 .08 .07 6 .22 .23 .08 .22 .94 19 .9 1.5 .42 .19 .05 .06 7 .22 .19 .08 .22 .83 14 .8 1.4 .44 .19 .04 .06 B .22 .12 .11 .22 .80 10 .9 1.4 .44 .20 .05 .07 9 .22 .10 .12 .22 .82 8.4 .9 1.3 .42 .17 .04 .05 10 .22 .15 .14 .67 1.7 10 .9 1.2 .39 .14 .06 .05 11 .22 .12 .8 1.1 .40 .11 .07 .03 12 .22 .11 .14 1.2 3.B 7.1 .B 1.1 .39 .10 ' .07 .06 13 .22 .11 .14 1.1 2.6 6.1 .7 .99 .46 .12 .OB .06 14 .22 .08 .14 .91 2.0 4.7 .6 .90 .43 *12 .07 .07 15 .09 .07 16 .22 .08 .14 .66 1.0 3.9 .7 .71 .43 .13 .12 .07 17 .22 .08 .20 1.4 .81 3.4 .9 .68 .39 .14 .10 .07 18 .22 .08 .29 1.2 .57 3.1 .0 , .62 .37 .15 .08 .OB 19 .22 .11 .37 .94 .75 2.9 .0 .59 .35 .15 .09 .07 20 .27 .10 .26 .89 .70 2.9 .7 .56 .34 .15 .07 .05 21 .27 .08 .35 .90 .42 2.7 .0 .57 .35 .17 .06 .06 22 .27 .07 .45 1.0 .51 2.5 .7 .58 .35 .18 .OB .06 23 .27 .07 .23 .96 .43 2.3 .2 .54 .32 .17 .07 .06 24 .27 .07 .23 .90 .51 2.2 . I .54 .33 .19 .09 .06 25 .27 .37 .33 1.0 .54 2.1 .8 .50 .28 .16 .14 .07 26 .27 .05 .33 1.0 .52 2.1 .6 .49 .27 .15 .12 .07 27 28 .27 .09 .IB 1.0 a. 3 1.9 .B .42 .25 .10 .13 .17 29 .27 .05 .34 1.0 ~«_« 1.9 .7 .47 .26 .09 .10 .22 30 .27 .05 .33 .97 ~. . 1.9 .B .46 .29 .OB .OB .18 31 .27 .23 .94 2.3 ~ .46 .07 .08 TOTAL 7.42 3.7* 6.18 23.26 43.24 394.6 6 .6 29.43 11.34 4.95 2.56 2.34 MEAN .24 .12 .20 .75 1.54 12.7 2 15 .95 .38 .16 .083 .078 MAX .27 .27 .45 1.4 8.4 110 .B 2.3 .46 .29 .16 .22 KIN .22 .05 .07 .20 .42 1.9 .6 .42 .24 .07 .04 .03 AC-FT 15 7.4 12 46 86 783 12B 58 22 9.8 5.1 4.6 NOTE. NO GAGE-HEIGHT RECORD OCT. i TO NOV. 6. SAN LUIS REY RIVER BASIN 11035000 SAN LUIS REY RIVER AT LAKE HENSHAW, NEAR MESA GRANDE, CALIF. LOCATION.--Lat 33°14'20", long 116°45'43", in Valle de San Jose Grant, San Diego County, at Henshaw Dam, 4 miles north of Mesa Grande. DRAINAGE AREA.--206 sq mi. PERIOD OF RECORD.--October 1922 to September 1968 (discontinued). October 1911 to September 1922 at site 1 mile downstream published as "near Mesa Grande"; records not equivalent owing to change in natural water losses resulting from creation of Lake Henshaw. Monthly net discharge only October to December 1922, published in WSP 1315-B. GAGE.--No rding te 1 mile downstream at different datum. AVERAGE DISCHARGE. --11 years (1911-22), 59.6 cfs (43,160 acre-ft per year), below damsite; 46 years (1922-68), 24.2 cfs (17,550 acre-ft per year), discharge at Lake Henshaw, excluding 90 percent of precipitation on lak surface; median of year mean discharges, 14 cfs (10,400 acre-ft per year). REMARKS. --Records of net discharge represent all water reaching Lake Hensh cluding 90 percent of rainfall on water surface of lake and supplemental water obtained by pumping ground water from ake bed. Net discharge computed on basis of records of storage, release (draft), spill, leakage, evaporation, precipitation, and ground-water pumpage. Monthly evaporation from lake surface computed on basis of evaporation from a floating pan using a coefficient of 0.87, except during periods when winds swamp the floating pan. Net evaporation for these periods is computed on basis of Colorado land pan using coefficient of 0.80. Storage began on Oct. 7, 1922. Area and capacity tables for lake are based on resurvey made in October 1951. Capacity of lake at spillway level (gage height, 107.00 ft), 194,300 acre-ft. No dead storage. No flow over spillway since dam was completed. Water is released down San Luis Rey River for diversion downstream for irrigation, power, and domestic use. No diversion above Lake Henshaw. COOPERATION. --Records furnished by Vista Irrigation District. REVISIONS.- -WSP 1715: Drainage area. MONTHLY NET DISCHARGE, WATER YEARS OCTOBER 1965 TO SEPTEMBER 1968 MONTH GAGE CONTENTS CHANGE DRAFT NET SPILL PUMPED NET HEIGHT (ACRE- IN DISCHARGE (FEET) FEET) CONTENTS RATION LEAKAGE WATER (ACRE- (ACRE- FEET) LAKE HENSHAW FEET) FEET) FEET) OCTOBER 1965...... 38.40 5,060 +174 283 762 -84 NOVEMBER...... 42.96 9,072 +4,012 -728 593 2,703 DECEMB ER...... 44.90 11,293 +2,221 -433 192 1,596 6,698 +1,148 0 22 201 969 FEBRUARY...... 0 19 233 1,262 277 527 184 94 ...... 44.75 11,112 -1,493 959 711 128 138 JULY...... 7,011 721 108 ...... 39.25 5,686 -1,325 838 630 12,719 1,542 48 74 563 1,211 APR I L 3,218 1,223 480 165 244 SEPTEMBER...... 43.22 9,353 -2,171 1 591 535 -61 WTR YR 1967...... 18,056 OCTOBER...... 42.69 8,787 -566 167 465 NOVEMBER...... 41.89 7,979 -808 974 -32 DECEMBER...... 42.70 8,797 +818 -328 CAL YR 1967...... 9,226 JANUARY 1968...... 42.48 8,569 -228 440 276 FEBRUARY...... 41.49 7,596 -973 1,138 186 331 MARCH...... 40.77 6,940 -656 1,321 267 852 APRIL...... 40.83 6,993 +53 643 292 513 475 MAY...... 40.01 6,291 -702 1,101 476 742 133 JUNE...... 39.06 5,542 822 -74 JULY...... 36.75 3,988 1,554 2,002 515 990 -27 AUGUST...... 36. 30 3,725 -263 768 439 1,015 -71 SEPTEMBER...... 35.95 3,529 -196 706 360 987 -117 WTR YR 1968...... -5,824 10,201 3,279 5,237 2,419 NOTE. THE AMOUNT OF PRECIPITATION EXCLUDED DURING WATER YEARS 1966-68 WAS 1,862, 2,467, AND 952 ACRE-FT, RESPECTIVELY. FOR MONTHS WHEN INFLOW TO THE LAKE WAS SHALL AND OTHER OUANTITIES WERE LARGE, DISCORDANT FIGURES OF NET DISCHARGE MAY APPEAR. THIS ARISES PRIMARILY FROM THE DIFFICULTY OF COMPUTING NET DISCHARGE AS THE RESID UAL OF SEVERAL LARGER OUANTITIES, WHICH ARE NOT SUSCEPTIBLE TO MEASUREMENT WITH A PRECISION NECESSARY TO PRODUCE A FINAL ANSWER WITHIN DESIRABLE LIMITS OF ACCURACY. SAN LUIS KEY RIVER BASIN 11037700 PAUMA CREEK NEAR PAUMA VALLEY, CALIF. LOCATION.--Lat 33°20'10", long 116°58'25", in Pauma Grant, San Diego County, on right bank 0.3 mile downstream from unnamed DRAINAGE AREA.- 11.0 sq mi. PERIOD OF RECORD. --October 1964 to Septemher 1970. GAGE.--Water-st, ge recorder; water-stage recorder and Parshall flume on diversion. Altitude of gage is 1,240 ft (fr >m topographic map). AVERAGE DISCHARGE. --6 years ( creek only) , 4.76 cfs (3,450 acre-ft per year) . 6 years (combined creek and d ive'r - sion), 5.57 .fs (4,040 acr e-ft per year). EXTREMES.- -Max i mums and minimums (discharge in cubic feet per second, g< ge height in feet). Annu al maximum dis charge (*) and peak discharges above base (50 cfs), water years 1966-70 Cre ek only Combined Wtr yr Date Time Discharge G.H. Date Discharge G.H. 1966 Nov. 22 1965 0100 *620 6.12 Nov. 22, 1965 *620 Dec. 29 1965 2300 74 3.62 Dec: 29, 1965 74 - Feb. 6 1966 1800 52 3.36 Feb. 6, 1966 52 - 1967 Dec. 6 1966 2200 *2,100 8.60 Dec. 6, 1966 *2,100 Jan. 25 1967 0030 120 4.06 Jan. 25, 1967 120 Mar. 13 1967 2230 121 3.99 Mar. 19, 1967 121 Apr. 22 1967 0500 72 3.40 Apr. 22, 1967 72 1968 Mar. 8 1968 1200 *80 3.60 Mar. 8, 1968 *80 1969 Jan. 21 1969 1200 53 3.30 Jan. 21, 1969 53 Jan. 25 1969 1315 1,360 7.26 Jan. 25, 1969 1,360 Feb. 6 1969 1830 105 3.56 Feb. 6, 1969 105 Feb. 25 1969 1830 *1,450 7.41 Feb. 25, 1969 *1,450 _ Mar. 21 1969 1730 73 3.29 Mar. 21, 1969 73 Apr. 3 1969 0800 67 3.23 Apr. 3, 1969 67 1970 Mar. 1 1970 1600 »78 3.34 Mar. 1, 1970 *78 " Annual min rs 1966-70 Creek only Combined Wtr yr Date Discharge Date Discharge 1966 Most t f time 0 Many days .10 1967 c 0 Several days .20 1968 c o! 0 Sept. 8, 1968 .21 1969 c 0 Oct. 24, 1968 .47 1970, do. 0 Aug. 9, 1970 .10 Period of record: Maxi mum discharge (creek only), 2,100 cfs Dec. 6, 1966 (gage height, 8.60 ft), fro t at gage height 7.26 ft; no flow f or many days in each year. Maximum discharge (combined flow), 2,100 cfs Dec. 6, 1966; minimum daily, 0.10 cfs at times in most years. REMARKS. --Records good except those for periods of no gage-height record Jan. 26-28, Apr. 3 to May 5, 1969, which are poor. N< regulation above station . Pauma Valley Water Co. diverts from a site 0.2 mile downstream For records c g herein. DISCHARGE. IN CUBIC FEET PER SECOND. WATER YEAR OCTOBER 1965 TO SEPTEMBER 1966 DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 0 5.5 18 6.8 2. .60 2 0 .0 13 7.1 2. .40 3 D .5 12 7.1 2. .40 4 0 .9 10 7.5 2. .40 5 D .9 9.5 6.8 1. .40 6 0 .9 9.1 22 1. .40 7 0 .8 8.6 24 1. .30 8 0 .3 8.2 13 1. .50 9 0 .7 7.7 9.8 1. .60 10 0 1 7.3 9.3 1. .70 11 o .3 7.1 7.9 1. .80 12 0 .1 6.8 7.3 1. .80 13 o .8 6.6 6.9 1. .60 14 o .5 6.4 6.4 1. .50 15 .10 .4 6.2 6.4 1. ) .50 16 .80 .6 6.8 5.8 1. .40 17 5.0 .3 7.5 5.8 1. .30 18 4.8 .1 7.7 5.8 1. .20 19 3.4 .6 7.1 5.6 1. .20 20 1.2 .9 7.1 5.5 1. .10 21 .90 .3 6.6 5.2 1. .10 22 80 1 6.4 5.2 1. .10 23 142 .8 6.2 5.2 1. .10 24 17 .3 6.6 4.8 1. .10 25 29 .3 5.8 5.2 . 0 .10 26 16 .3 5.6 5.2 .80 .10 27 9.3 .9 5.6 5.0 .80 .10 28 7.9 .8 5.8 5.0 .80 .10 29 6.9 2 I 5.5 ... » .70 .10 30 6.0 40 7.3 .60 0 31 TOTAL 0 330.30 287.8 241.2 217.6 12 39.40 10.00 000 MEAN 0 11.0 9 28 7.78 7.77 3 9 1.31 .32 0 0 0 MAX 0 142 40 18 24 2.2 .80 0 0 0 MIN 0 0 J.3 5.5 4.8 .60 0000 AC-FT 0 655 571 478 432 »4 78 20 0 0 0 MTR YR 1966 TOTAL 1.249.20 MEAN 3.42 MAX 142 MIN AC-FT 2.480 SAN LUIS REY RIVER BASIN 11037700 PAUMA CREEK NEAR PAUMA VALLEY, CALIF.--CONTINUED DISCHARGE. IN CUBIC FEET PER SECOND. HATER YEAR OCTOBER 1966 TO SEPTEMBER 1967 NOV DEC JAN FEB MAR APR HAY JUN JUL 1 0 0 9. 3.7 9.8 24 .9 2 0 0 B. 3.B 13 21 .2 ;| 3 0 7.6 7. 3.7 13 20 .6 . 4 0 4.5 6. *.4 18 19 .5 . 5 0 112 6. 5.6 21 IB .5 6 0 656 6. 5.6 14 17 .5 ^ 7 C 50 6. 4.8 13 16 .3 . a l.C 15 6. 4.5 13 15 .2 . 9 .30 10 6. 4.2 12 15 .2 . 10 .1C 9.5 6. 4.1 11 18 .5 11 .10 9.0 6. 6.4 20 15 .5 . 12 0 8.5 6. 6.9 19 14 .5 . 13 0 8.0 6. 36 17 13 .6 « |4 0 7.8 6. 38 19 11 .B . 15 0 7.6 6. 18 20 10 .0 16 0 7.4 5. 14 22 9.8 .7 9 17 0 7.2 5. 12 22 8.6 .5 . 18 0 7.0 5. 12 22 8.4 .2 . 19 0 6.9 5. 11 24 8.2 .1 20 0 6.8 5. 10 22 7.5 .9 I 21 0 6.6 4 4. 9.3 27 .3 .6 . 22 0 6.0 8 4. 9.1 49 .9 .4 23 0 5.8 1 4. B.6 39 .8 .3 !; 24 0 5.5 21 4. B.6 35 .B .0 .2 25 0 5.3 45 4. 8.2 36 .6 .0 .2 26 0 5.3 17 4. 8.2 38 .4 .8 .1 27 0 5.3 14 4. 7.5 35 .4 .6 .1 28 0 5.0 12 3. 9 6.9 30 .4 .5 .1 29 0 4.8 10 ~« 8.8 30 .8 .4 .1 30 0 4.7 9 a 8.4 26 .3 .2 .1 31 4.5 12 9.1 .3 0 TOTAL MEAN 0 .050 32.2 7. 25 5.B I 9.79 23.0 11.7 4 50 .9 MAX 0 1.0 656 »5 9. L 3B 49 24 .9 2. MIN 0 0 02 2 3. B 3.7 9.8 6.4 .2 6 KIN 0 AC-FT 5,770 DISCHARGE, IN CUBIC FEET PER SECOND, MATER YEAR OCTOBER 1967 TD SEPTEMBER 1968 NOV DEC JAN FEB MAR APR MAY JUN JUL 0 4.1 2.4 .8 1.0 .5 1. 0 2.0 2.2 .0 .90 .9 1. 0 1.9 2.2 .9 .90 .3 1. 0 1.4 2.1 ,5 .70 .9 1. 0 1.2 1.8 .1 .70 .7 1. 0 1.1 1.7 .0 .90 .1 1. 0 1.1 1.7 .0 1.5 .8 1. .40 0 1.2 1.6 .0 29 .6 1. .60 0 1.2 1.7 .9 15 .4 1. .60 0 .90 1.7 .2 9.1 .4 . 0 .90 2.0 .2 7.3 .6 1. 0 .90 2.4 .0 6.2 .9 2. 0 1.4 2.4 .B 5.5 .5 4. 0 1.5 2.4 .7 6.8 .4 2. 0 1.4 2.4 .4 5.5 .2 1. 0 0 0 5.2 1.9 .7 4.2 .7 2 10 1.8 .5 3.4 .5 7.4 5.6 1.7 .1 3.0 .4 . 4.2 3.4 1.8 .1 2.8 .4 .7 3.4 2.8 1.6 .0 2.4 .2 .8 2.8 2.7 1.5 .8 1.9 .9 .8 2.1 2.7 1.5 .7 1.7 .7 .7 2.1 2.7 1.4 .7 1.7 .6 .6 1.7 2.7 1.4 .7 1.6 .5 .5 1.7 2.7 4.5 .2 1.5 .6 .4 2.0 2.7 5.8 .3 1.4 .5 .3 2.8 2.7 2.9 ._ 1.2 .2 .2 31 2.6 3.6 1.2 - .2 TOTAL 68.0 130.30 90.9 MEAN 3.03 MAX 8.9 MIN 1.2 AC-FT 180 CAL YR 1967 TOTAL 2,031.40 MEAN 5.57 MAX 49 MIN 0 AC-FT 4,030 SAN LUIS REY RIVER BASIN 11037700 PAUMA CREEK NEAR PAUMA VALLEY, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEE-T PER SECOND, WATER YEAR OCTOBER 1968 TO SEPTEMBER 1969 NOV DEC JAN FEB MAR APR MAY JUN JUL 1 0 .02 .80 17 76 21 12 4.0 1.7 .04 2 0 .02 .80 16 63 20 12 3.7 1.4 .02 3 0 .02 .80 15 60 39 11 3.2 1.3 .01 4 0 .02 .46 15 53 25 11 3.1 1.2 0 5 0 .02 .20 22 50 23 10 3.0 1.3 0 6 0 .01 .20 62 48 38 10 2.8 1.4 o 7 0 .01 .16 50 41 25 9.4 2,7 1.4 o 8 0 .01 .12 34 38 23 9.0 2.7 1.1 o 9 0 .01 .12 28 36 21 8.5 2.8 .85 0 1 10 0 .01 .12 23 37 23 8.0 3.0 .72 0 11 0 .01 .12 23 36 20 7.7 3.5 .64 .08 12 0 0 .12 21 36 18 7.3 3.5 .80 .13 13 0 G .20 20 36 18 7.0 3.2 .72 .05 14 0 0 14 18 32 IT 6.5 2.8 .60 .01 15 0 0 6.5 18 33 17 6.3 2.6 .56 .01 16 0 0 2.9 32 32 17 6.0 2.6 .52 .01 17 0 0 1.8 18 31 17 5.6 2.6 .49.46' .01 18 0 0 1.5 19 30 16 5.5 2.2 .01 19 0 0 3.8 19 29 16 5.2 2.0 .42 .01 20 0 .01 18 .01 .01 21 0 .05 29 18 42 15 5.0 2.7 .49 .01 .02 22 0 .06 14 19 47 16 4.9 2.8 .26 .01 .02 23 0 .05 7.9 28 37 15 4.5 2.2 .21 .01 .02 24 .01 .04 84 275 31 15. 4.4 2.1 .17 0 .03 25 .01 .04 455 694 29 15 4.3 2.2 .17 0 .03 26 .02 3.7 193 135 27 14 4.0 2.0 .17 0 .03 27 .02 2.0 96 28 .02 1.3 50 77 25 13 3.7 l.B .15 0 .03 29 .02 1.1 35 24 13 3.6 l.B .11 0 .02 30 .02 .86 23 23 13 3.4 1.9 .08 0 .01 31 .86 20 22 3.4 .07 0 TOTAL 0 .12 10.23 1 ,051.42 1,824 MEAN 0 .004 .33 33.9 65.1 37.4 19.1 6.72 2.64 .65 .014 .008 MAX 0 .02 3.7 4S5 694 76 39 12 4.0 1.7 .13 .03 MIN 0 0 0 .12 15 22 13 3.4 1.8 .07 0 0 2,300 1,130 413 157 40 .9 .5 CAL YR 1968 TOTAL 406.75 MEAN 1.11 MAX 29 MIN 0 AC-FT 807 DISCHARGE , IN CUBIC FEET PER SECOND, MATER YEAR OCTOBER 1969 TO SEPTEMBER 1970 DAY OCT NDV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 .01 .01 .02 2 .01 .01 .02 .07 .34 6.6 1.1 .23 .30 .01 .02 .04 3 .02 .01 .02 .07 .19 9.1 .80 .17 .34 .01 .02 .04 4 .02 .01 .02 .O'T.07 .15 11 .64 .13 .22 .01 .02 .04 5 .01 .01 .02 .13 14 .56 .13 .13 .01 .02 .04 6 0 .02 .02 .08 .10 10 .49 .11 .17 .01 .01 .04 7 .01 2.4 .02 .10 .08 8.0 .42 .13 .15 0 0 .03 8 0 1.7 .02 .10 .06 6.4 .42 .15 .06 0 0 .03 9 0 1.3 .47 .10 .06 5.3 .36 .15 .04 0 0 .02 10 0 1.5 .31 1.2 2.0 5.8 .28 .15 .04 0 0 .02 11 .01 1.4 .15 1. 4.5 5.8 .21 .13 .04 0 0 .01 12 .01 .68 .11 2. 2.5 4.5 .23 .11 .04 0 .01 .01 13 0 .31 .07 2. 1.4 3.9 .19 .10 .04 0 .03 .01 14 .01 .28 .05 1. 1.2 3.6 .21 .10 .04 0- .01 .01 15 .01 .36 .05 1. 1.0 3.3 .23 .08 .04 0 .01 .01 16 .02 .56 .04 1.4 .85 2.7 .21 .07 .04 0 .01 .01 17 .02 .49 .04 1.9 .76 2.2 .34 .06 .04 0 .02 .01 18 .03 .26 .04 1.4 .72 2.2 .36 .05 .04 0 .03 .01 19 .04 .19 .04 1.2 .64 2.0 .31 .04 .04 0 .05 .01 20 ' .04 21 .04 .15 .04 1.0 .56 .8 .63 .04 .04 1 .02 .07 .02 22 .04 .17 .04 1.0 .56 .8 .46 .04 .04 .03 .07 .02 23 .04 .07 24 .04 .11 .23 .04 .04 .03 .07 25 .04 .07 .05 .85 .60 .4 .19 .04 .04 .03 .07 .04- 26 .04 .05 .06 .80 .68 1.3 .17 .04 .03 .06 27 .05 .02 .06 .68 .68 1.4 .58 .04 .03 .03 .06 28 .05 .02 .06 .68 7.0 1.4 .89 .04 .02 .03 .06 29 .05 .02 .07 .64 _ 1.4 .94 .04 .02 .03 .05 30 .03 .02 .07 .60 _w«. 1.0 .80 .04 .02 .03 .05 31 .03 .07 .56 1.6 .04 ' .03 .04 TOTAL .72 12.51 2.19 26.87 29.00 139.8 14.03 3.03 2.22 .40 1.02 .49 MEAN .023 .42 .071 .87 1.04 4.51 .47 .098 .074 .013 .033 .016 MAX .05 2.4 .47 2.5 7.0 15 1.1 .46 .34 .03 .07 .04 MIN 0 .01 .02 .07 .06 1.0 .17 .04 .02 0 0 0 AC-FT 1.4 25 4.3 53 58 277 28 6.0 4.4 .B 2.0 1.0 CAL YR 1969 TOTAL 4,930.09 MEAN 13.5 MAX 694 MIN 0 AC-FT 9,780 WTR YR 1970 TOTAL 232.28 MEAN .64 MAX 15 MIN 0 AC-FT 461 SAN LUIS REY RIVER BASIN 11037700 PAUMA CREEK NEAR PAUMA VALLEY, CALIF.--CONTINUED COMBINED DISCHARGE, IN CUBIC FEET PER SECOND, OF PAUMA CREEK AMI PAUMA VALLEY WATER CO.,'S DIVERSION NEAR PAUMA VALLEY, CALIF., WATER YEAR OCTOBER 1965 TO SEPTEMBER 1966 JUN JUL AUG SEP 1 .20 .30 5.9 18 7.4 5.1 3.3 2.2 1.1 .40 .10 .10 2 .20 .30 5.2 14 7.7 6.1 3.1 2.0 1.1 .30 .10 .10 3 .20 .30 4.8 12 7.7 5.8 3.1 2.0 1.0 .30 .10 .10 4 .20 .30 4.4 11 8.1 5.8 3.1 2.0 1.0 .30 .10 .10 5 .20 .30 4.4 10 7.4 5.9 3.1 2.0 .90 .30 .10 .10 6 .20 .30 4.4 9 a 22 6.1 3.0 2.0 .90 .20 .10 .10 7 .20 .30 4.5 9 3 24 5.7 3.0 1.9 .90 .20 .10 .10 a .20 .40 4.3 8 9 14 5.2 3.0 2.0 1.1 .20 .10 .10 9 .30 .40 9.5 8 3 10 5.2 3.0 2.1 1.4 .30 .10 .10 10 .30 .40 16 7 9 9.8 5.1 3.0 2.2 1.3 .30 .10 .10 11 .30 .40 9.7 7 7 8. 2 5.0 3.0 2.3 .90 .30 .10 .10 12 .20 .40 .90 .20 .10 .10 13 .20 .40 10 7 2 7.2 4.7 3.0 2.0 .80 .20 .10 .10 14 .30 .70 .20 .10 .10 15 .30 .90 8.8 6 a 6.7 4.6 2.6 1.9 .70 .20 .10 .10 16 .30 1.2 IT .30 .70 .10 .10 .10 18 .30 4.9 7.5 7 9 6.1 3.9 2.8 i.a .60 .10 .10 .10 19 .30 3.5 7.0 7 3 5.9 3.8 3.3 1.8 .60 .10 .10 .10 20 .30 1.3 7.4 7 3 5.8 3.8 3.2 1.7 .60 .10 .10 .20 21 .60 .10 .10 .10 22 .10 80 12 6 5 5.5 3.8 2.7 1.6 .60 .10 .10 .10 23 .10 142 9.4 6 3 5.5 3.6 2.6 1.6 .60 .10 .10 .10 24 .10 IT 7.9 6 6 5.1 6.2 2.3 1.5 .60 .10 .10 .10 25 .10 29 .60 .10 .10 .10 26 .10 16 7.9 6 3 5.5 5.5 2.4 1.4 .50 .10 .10 .10 27 .20 .50 .10 .10 .10 28 .20 .40 .10 .10 .10 29 .20 7.3 22 6 2 ___ _ 3.9 2.3 1.3 .40 .20 .10 .10 30 .20 6.4 40 8 0 3.8 2.2 1.1 .40 .20 .10 .20 31 .20 ----- 22 7 7 _____ 3.3 1.1 .20 .10 - TOTAL 6.70 339.00 301.9 256 1 227.7 148.4 84.0 55.3 23.10 5.90 3.10 3.20 MEAN .22 11.3 9.74 8. >6 8. 13 4.79 2.80 1.78 .77 .19 .10 .11 MAX .30 142 40 18 24 6.2 3.3 2.3 1.4 .40 .10 .20 MIN .10 .30 4.3 6 2 5.1 3.3 2.2 1.1 .40 .10 .10 .10 AC -FT 13 672 599 508 452 294 167 110 46 12 6.2 6.4 2,750 COMBINED DISCHARGE, IN CUBIC FEET PER SECOND, OF PAUMA CREEK AND PAUMA VALLEY WATER CO.,'S DIVERSION NEAR PAUMA VALLEY, CALIF., WATER YEAR OCTOBER 1966 TO SEPTEMBER 1967 OAV OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 .20 .20 .50 9.4 5. 10 24 g 9 3.1 1.3 .80 2 .20 20 .50 8.7 5. 13 22 3 .20 .20 8.1 8.5 5. 13 22 a. 2.8 .2 .9 4 .30 .20 4.6 8.5 a. 18 21 jf 2.7 .2 .6 5 .30 .30 112 8.2 7. 22 20 ' 1 1 2.6 .2 .2 6 .30 .30 656 7.6 7. 15 19 7 B 2.5 .2 .0 7 .30 .80 50 7.3 6. 14 18 7, 2.4 .2 .0 8 .20 1.8 15 7.3 6. 14 17 7. 2.3 .2 .90 9 .20 .70 10 7.3 6. 13 17 7. 2.2 .1 .90 10 .60 .50 9.5 7.3 6. 12 20 7. 2.1 .1 .90 11 .40 .70 9.0 6.9 a. 20 17 7. 2.0 .1 .90 12 .40 .60 8.5 6.7 8. 19 16 7. 2.0 .1 .90 13 .40 .50 a.o 6.9 38 17 15 9. 1.9 .1 .90 14 .30 .50 8.2 6.6 38 20 13 a. 1.8 .1 .90 15 .30 .50 8.2 6.5 18 20 12 7. 1.7 . .0 .80 16 .30 .50 8.0 6.5 14 22 12 7. 1.7 .0 .80 17 .20 .50 7.8 6.3 12 22 11 6. 1.6 .0 .90 18 .20 .50 7.6 6.3 12 22 11 6. 1.6 .0 .0 19 .20 .40 7.5 6.2 11 24 11 5. 1.5 .0 .0 20 .20 .40 7.4 6.6 10 22 9.9 5^ 1.5 .0 .0 21 .20 .50 7.2 4 22 .20 .50 6.6 a 23 .20 .50 24 .20 .50 6.1 21 6.2 9.0 35 9. 1.4 .90 .0 25 .20 .50 5.9 45 6.0 a. 7 36 4. 1.4 .80 .0 26 .20 .50 5.9 17 6.0 8.7 38 8. 4. 1.4 .80 1.0 27 .20 .40 5.9 14 6.0 9.1 35 8. 3. 1.4. .80 .90 28 .20 .40 5.6 12 5.7 a. 6 30 a. 3. 1.3 .80 .90 29 .20 .50 5.4 10 ______9.6 30 9. 3. 1.3 .70 .90 30 .20 .50 5.1 9 g __ __ 9.1 26 9. 3. 1.3 .70 .80 31 .20 5.0 12 ______9.5 _____ 9. 1.3 .70 TOTAL 7.90 15.10 1.011.50 262 7 194.7 336.2 697 428. 193. 58.2 31. 4O 29.90 MEAN .25 .50 32.6 8.' 7 6.95 10.8 23.2 13. 6.4 1.88 1.01 1.00 MAX .60 1.8 656 <.5 9.4 38 49 2 9.3 3.1 1.3 1.9 KIN .20 .20 .50 3 9 5.7 5.6 10 8. 3.2 1.3 .70 .80 AC-FT 16 30 2,010 521 386 667 1,380 850 383 115 62 59 CAL VR 1966 TOTAL 1,841 .30 MEAN 5.04 MX 656 MIN .10 AC-FT 3,650 HTR VR 1967 TOTAL 3,266 .10 MEAN 8. 95 MAX 656 N1N .20 AC-FT 6,480 SAN LUIS REY RIVER BASIN 11037700 PAUMA CREEK NEAR PAUMA VALLEY, CALIF.--CONTINUED COMBINED DISCHARGE, IN CUBIC FEET PER SECOND. OF PAUMA CREEK AND PAUMA VALLEY WATER CO.,'S DIVERSION NEAR PAUMA VALLEY, CALIF., WATER YEAR OCTOBER 1967 TO SEPTEMBER 1968 DAY OCT NOV DEC JAN FES MAR APR MAY JUN JUL AUG SEP 1 .80 .68 5. 1 3.4 5.1 2.6 2.9 3.2 1.6 .94 .59 .37 2 .BO .72 3.0 3.2 4.3 2.5 10 3.2 1.5 .88 .53 .38 3 .80 .48 .41 4 .80 .79 2.4 3.1 3.8 2.3 7.2 3.3 1.3 .80 .46 .47 5 .80 .68 2.2 2.8 3.4 2.3 5.4 3.2 1.4 .77 .46 .42 6 .80 .47 .31 7 .80 .90 2.0 2.7 3.3 3.1 4.7 3.2 1.9 1.2 .47 .24 8 .80 .S4 2.1 2.6 3.3 30 4.4 3.1 2.1 1.2 .48 .21 9 .SO .83 2. I 2.7 3.2 15 4.2 2.4 2.1 .87 .44 .22 10 .80 .85 1. 8 2.7 3.6 9.3 4.2 2.4 2.0 .76 .41 .22 11 .80 .82 1. .41 .22 12 .72 .82 1. .41 .22 13 .72 1.6 .66 .41 .22 14 .72 .46 .36 19 .68 .90 2.2 3.4 4.8 5.8 4.3 3.0 1.3 .73 .50 .43 16 .63 .56 .43 17 .62 .96 3.5 3.2 4.0 5.3 4.7 2.5 1.1 .69 .57 .42 18 .62 .99 6.0 3.2 4.0 5.0 4.8 2.4 1.0 .64 .59 .42 19 .64 12 11 3.0 .57 .43 20 .66 .93 .60 .57 .43 21 .74 .94 .56 .58 .43 22 .82 .95 .53 .57 .43 23 .79 2.9 3.5 2.8 '2.83.0 3.5 4.0 2.3 .96 .53 .47 .41 24 .77 2.2 3.5 2.8 3.2 3.S 2.2 1.0 .53 .39 .33 25 .76 2.1 .98 .54 .38 .26 26 .78 1.8 3.8 2.7 2.7 3.1 3.6 2.0 .94 .54 .36 .23 27 .80 1.8 3. 9 5.8 2.7 3.0 3.7 .9 .95 .54 .37 .22 28 .81 2.1 3. 7 7.1 3.0 2.9 3.6 .8 .96 .64 .36 .36 29 .78 2.6 3. r 4.9 2.8 2.8 3.3 .7 .97 .72 .34 .43 30 .63 3.9 3. 7 4.2 _«« __ 2.7 3.2 .6 .95 .64 .34 .43 31 .65 - 3.6 4.9 2.6 »_ .7 106.7 163.5 82.0 39.06 22.25 14.35 10.36 MEAN .75 2.08 3.42 3.40 3.68 5.27 4.63 2.65 1.30 .72 .46 .35 MAX .82 12 11 7.1 6.1 30 10 4.7 2.1 1.2 .59 .47 HIN .62 .68 1. 9 2.6 2.7 2.3 2.9 1.6 .93 .53 .34 .21 AC-FT 46 124 210 209 212 324 276 163 77 44 28 21 CAL YR 1967 TOTAL 2.423.05 MEAN 6.64 MAX 49 MIN .62 AC-FT 4 .810 MTR YR 1968 TOTAL 873.87 MEAN 2.39 MAX 30 HIN .21 AC-FT 1 ,730 COMBINED DISCHARGE, IN CUBIC FEET PER SECOND, OF PAUMA CREEK AND PAUMA VALLEY WATER CO. ,'5 DIVERSION NEAR PAUMA VALLEY, CALIF., WATER YEAR OCTOBER 1968 TO SEPTEH BER 1969 JUN JUL AUG SEP 1 .62 .79 .86 .97 17 76 22 14 5.6 3.9 .2 .62 2 .71 .75 .96 .97 16 63 21 14 4.8 3.6 .2 .57 3 .96 .71 .86 .97 15 60 40 13 5.0 3.5 .1 .55 4 .95 .75 .77 .96 15 53 26 13 5.0 3.4 .1 .55 5 .77 .81 .78 1.0 22 50 23 12 4.9 3.5 .1 .54 6 .53 .75 .77 .3 63 48 38 12 4.7 3.6 .1 .55 7 .54 .69 .76 .3 51 41 25 12 4.6 3.6 .1 .54 8 .68 .66 .75 .1 34 38 23 11 4.6 3.3 .1 .54 9 .69 .64 .75 .1 28 37 22 11 4.7 3.0 .3 .54 10 .67 .63 .76 .1 24 38 24 10 4.9 2.9 .0 .54 11 .72 .61 .86 .1 24 37 21 10 5.4 2.9 .77 .51 12 .65 .66 .96 .1 22 37 19 9.5 5.4 3.2 .0 .54 13 .54 .81 .91 .2 21 37 19 9.2 5.1 2.9 .0 .57 14 .77 .89 .81 1 19 33 18 8.7 4.7 2.8 .0 .69 IS 1.0 1.4 .80 .3 19 34 18 8.5 4.5 2.8 .99 .«3 16 .73 1.2 .7 33 33 18 17 .55 1.0 .6 18 32 18 7.8 4.5 2.7 .95 .86 18 .53 .87 .3 19 31 17 T.7 4.1 2.6 .95 .82 19 .53 .75 .6 19 30 17 7.4 3.9 2.4 .93 .75 20 .54 .70 1 18 30 17 7.3 3.7 2.5 .88 .79 21 .56 .68 29 18 43 16 7.2 4.0 2.5 .79 .93 22 .51 .71 14 19 47 17 7.1 3.6 2.1 .72 .98 23 .49 .71 8.1 28 37 16 6.7 3.4 1.8 .65 .87 24 .47 .71 84 275 31 16 6.6 3.8 1.6 .64 .80 25 .46 .74 455 694 29 17 6.5 4.1 1.5 .67 .76 26 .4B .74 193 135 27 16 6.2 3.9 1.6 .65 .73 2T .49 .75 96 90 26 15 6.1 3.9 1.6 .68 .69 29 .51 .75 50 77 25 15 5.9 3.9 1.6 .69 .61 29 .53 .73 35 . 24 IS 5.8 4.0 1.4 .70 .57 30 .83 .76 23 « 23 15 5.6 4.1 1.4 .68 .55 31 .86 . 20 23 ______5.6 1.4 , 66 _____ TOTAL 19.89 23.35 35.T6 1.067.77 1.833 1.173 604 275.6 133.3 80.3 2E .28 20.28 MEAN .64 .78 1.15 34.4 65.5 3T.8 20.1 8.89 4.44 2.59 .91 .68 MAX 1.0 1.4 4.3 455 694 76 40 14 5.6 3.9 1.3 .98 HIN .47 .61 .75 .96 15 23 15 5.6 3.4 1.4 .64 .51 »C-FT 39 46 71 2.120 3,640 2.330 1.200 547 264 159 56 40 CAL YR 1968 TOTAL 761.42 MEAN 2.08 MAX 30 HIN .21 AC-FT 1,510 HTR YR 1969 TOTAL AC-FT 10.500 SAN LUIS REY RIVER BASIN 11037700 PAUMA CREEK NEAR PAUMA VALLEY, CALIF.--CONTINUED COMBINED DISCHARGE, IN CUBIC FEET PER SECOND, OF PAUMA CREEK AND PAUMA VALLEY WATER CO. "S DIVERSION NEAR PAUMA VALLEY, CALIF., WATER YEAR OCTOBER 1969 TO SEPTEMBER 1970 1 .55 .76 .1 1.4 IS .4 .1 2 .66 .76 .1 1.5 6. .4 .1 3 .80 .61 .1 1.5 9. .1 .1 4 .80 .84 .1 1.6 11 .9 .1 5 .68 1.0 .0 1.5 14 .9 .1 6 .62 .1 .0 1.5 10 .9 .1 7 .60 .9 .0 1.4 8. .8 .1 8 .59 .1 .0 1.5 6. .8 .1 9 .60 .7 .0 1.5 5. .8 .1 10 .70 .8 .1 3.0 6. .7 .1 11 .77 .7 .4 4.8 6. .6 .1 -40 12 .70 .5 .6 3.5 4. .6 .0 .36 13 .69 .5 .2 2.7 4. .6 .0 .34 1* .75 .4 .3 2.4 4. .6 .0 15 .84 .6 .2 2.2 3. .6 .0 16 .91 .9 .2 2.0 3. .6 .0 17 .98 .8 .8 2.0 3. .6 .0 18 1.1 .4 .3 1.9 3. .7 .94 19 .1 .3 .1 1.9 3. .7 .90 .32 20 .2 .3 .0 1.9 2. .5 .80 .32 21 .0 .2 .9 1.8 2. .8 .73 22 .1 .3 .9 1.7 2. .8 .69 23 .1 .3 .9 1.8 2. .6 .64 24 .1 .2 .8 1.6 2. .5 .58 25 .1 .2 .8 1.7 2. .5 .53 26 .1 .2 .7 1.7 2. .5 .49 27 .0 .2 .6 1.7 2. .0 .47 28 .98 .2 .6 7.5 2. .4 .47 29 .92 .2 5 2. .4 .51 30 .78 .2 .4 2. .3 .55 TOTAL 26.60 4 .39 3 5 .1 61.2 159. 5 .6 4 26.40 MEAN .86 .38 1 I 1 71 2.19 5.1 j 82 1 .88 MAX 1.2 2.9 .8 7.5 1 .4 1.1 PIN .55 .76 .0 1.4 2. .5 .47 AC-fT 53 82 78 05 121 31 108 82 52 SAN LUIS REV RIVER BASIN 11039100 SAN LUIS REY RIVER TRIBUTARY NEAR PALA, CALIF. LOCATION.--Lat 33°21'45", long 117°02'55", in SWisNWsSWis sec.25, T.9 S. , R.2 W., San Diego County, DRAINAGE AREA.--1.01 sq mi. PERIOD OF RECORD.--Annual maximums, water years 1962-65. October 1965 to September 1970. (from topographic map). Dec. 8, 1961, to Sept. 20, 1965, crest-stage gage only at pr AVERAGE DISCHARGE.--5 years (1965-70), 0.008 cfs (5.8 acre-ft per year). EXTREMES.--Maximums and min 1966-70 are contained iti Wtr Yr Date Discharge G.H. Discharge 1966 Nov. 22, 1965 25 16.77 of ye 1967 Dec. 6, 1966 6.9 15.52 1968 Mar. 8, 1968 6.8 15.85 do! 1969 Feb. 25, 1969 15.95 do. 1970 Mar. 2, 1970 15.24 do. aximum discharge, 25 cfs Nov. 22, 1965 (gage height, 16.77 ft), from rating curve defined by computati of flow through culvert at gage heights 15.12, 15.58, 15.70, and 16.38 ft; no flo most of year. REMARKS.--Re DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEARS OCTOBER 1965 TO SEPTEMBER 1970 NOV. 22, 1965.... 2.1 JAN. 25, 1967.... .20 DEC 8, 1967.. 10 FEB. 22, 1969.... .03 23...... 1.1 MAR. 13...... 20 9. 20 .08 DEC. 5, 1966.... .80 14...... 20 MAR 8, 1968.. .20 ...... 25 1.5 APR. 2...... 20 JAN ' 1969.. .03 ..... 3.5 .70 11...... 10 , 1 .0 ...... 48 JAN. 22, 1967... .40 22~...... 30 .01 0.... .03 .40 23...... 10 .02 ...... 08 .60 NOV. 21...... 40 .05 ...... 05 CFS-BAYS MAXIMUM RUNOFF IN ACRE-FEET 3 2 2. 1 6.4 3 2 2. 1 6.4 3 00 1. 5 3 00 1. 5 JANUARY 1967.. 1 60 60 .052 MARCH...... 40 20 .013 APRIL...... 70 30 .023 WTR YR 1967. 5 70 1. 5 .016 NOVEMBER 1967. 40 40 .013 DECEMBER...... 30 20 .010 CAL YR 1967. 3 40 60 .0090 MARCH 1968.... 20 20 .007 WTR YR 1968. 90 40 .0030 CAL YR 1968. 20 20 .0005 JANUARY 1969.. 1 04 1. 0 .034 FEBRUARY...... 4 41 3. 5 .16 WTR YR 1969. 5 45 3. 5 .015 CAL YR 1969. 5 45 3. 5 .015 NOTE. FLOW OCCURRED ONLY ON DAYS LISTED ABOVE. SAN LUIS REY RIVER BASIN 11040000 SAN LUIS REY RIVER AT MONSERATE NARROWS, NEAR PALA, CALIF. o County, DRAINAGE AREA.--373 sq mi. PERIOD OF RECORD.--December 1935 to March 1938 (fragmentary), April 1938 to November 1941, October 1946 to September 1970. GAGE.--Water-stage recorder. Datum of gage is 270.82 ft above mean sea level (levels by State of California). Piior to October 1946, at same site at different datum and Oct. 22, 1946, to Nov. 30, 1954, at datum 1.0 ft higher. AVERAGE DISCHARGE.--27 years (1938-41, 1946-70), 7.49 cfs (5,430 acre-ft per year); median of yearly mean dis charges, 1.8 cfs (1,300 acre-ft per year). EXTREMES.--Maximums and minimums (discharge in cubic feet per second, gage height in feet) for the water years 1966-70 are contained in the following table: Maximum Minimum Wtr yr Date Discharge G.H. Date Discharge 1966 Nov. 23, 1965 2,850 4.80 Most of time 0 1967 Dec. 6, 1966 7,000 6.70 do. C 1968 Mar. 8, 1968 131 2.47 do. 0 1969 Feb. 25, 1969 3,250 7.26 do. 0 1970 Mar. 2, 1970 111 4.82 do. C Period of record: Maximum gage height, 8.7 ft Feb. 7, 1937, datum then in use (discharge not determined); maximum discharge, 7,000 cfs Dec. 6, 1966 (gage height, 6.70 ft); no flow at times in most years. REMARKS.--Records good except those for Dec. 6-8, 1966, which are poor. No gage-height record Dec. 7, 8, 1966. Flow regulated by Lake Henshaw (see station 11035000). Several diversions above station. COOPERATION.--One discharge measurement furnished by San Diego County Flood Control District. REVISIONS.--WSP 1928: Drainage area. DISCHARGE. IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1965 TO SEPTEMBER 1966 CAV OCT NOV DEC JUN JIM. AUG SEP 1 0 0 0 .10 .70 2 0 0 0 1.0 .70 I C 0 0 .50 .60 4 0 0 0 .50 .50 5 0 0 0 .50 .50 6 0 0 2.2 .50 .40 7 0 0 12 .50 .40 S 0 0 1.0 .50 .40 9 0 0 .50 .50 .40 10 0 0 .50 .50 .40 11 0 0 .40 .40 .40 12 0 0 .40 .40 .30 13 0 0 .40 .40 .30 14 0 0 .40 .40 .30 15 0 0 .40 .40 .30 16 0 0 .30 .30 .30 17 0 0 .30 .30 .20 IB 0 0 .30 .30 .20 19 0 0 .30 .30 .20 20 0 0 .30 .30 .10 21 0 0 .20 .30 0 22 0 0 .20 .30 0 23 705 0 .20 .30 0 24 .90 0 .20 1.0 0 25 0 0 .10 2.0 0 26 0 0 .10 1.1 0 27 0 0 .10 1.1 0 28 0 0 .10 1.0 0 29 0 0 .90 0 30 0 36 __~ __ .90 0 31 _____ 3.7 _____ .80 _____ TOTAL 0 705.90 39.7 0 20.90 18.30 7.60 0 MEAN 0 23.5 1.28 0 .75 .59 .25 0 MAX 0 705 36 0 12 2.0 .70 0 MIN 0 0 0 0 0 .10 0 0 AC -FT 0 1.400 79 0 41 36 15 0 SAN LUIS KEY RIVER BASIN 11040000 SAN LUIS REY RIVER AT MONSERATE NARROWS, NEAR PALA, CALIF.--CONTINUED DISCHARGE. IN CUBIC FFET PER SECOND, WATER YEAR OCTOBER 1966 TO SEPTEMBER 1967 OCT 10V DEC JUN JUL 0 0 .90 1.1 .90 1.6 .50 .10 0 0 .90 1.1 .70 1.6 .50 .10 0 0 .60 1.1 .60 1.5 .50 .10 0 0 .70 1.2 .80 1.3 .50 .10 668 0 .70 .90 .50 1.1 .40 .10 1,890 0 .90 .80 .50 1.1 .40 .10 96C 0 1.0 .80 .50 .70 .40 .10 .20 0 1.0 .80 .50 .80 .40 .10 0 0 l.C .70 .40 .90 .30 .10 0 0 1.0 .80 .40 1.0 .30 .10 0 0 .90 .80 20 .90 .30 .10 0 0 .90 .90 4.0 .90 .30 .10 0 0 1.1 4.1 2.5 .80 .30 .10 0 0 1.1 15 2.2 .70 .30 .10 0 0 1.1 .40 1.3 .70 .30 .10 0 0 1.3 .50 V.3 .70 .30 .10 0 0 1.3 .50 1.3 .70 .30 .10 0 0 1.2 .50 I."8 .60 .20 .10 0 0 1.2 .50 3.4 .50 .20 .10 0 0 1.2 .50 2.0 .40 .20 .10 0 0 1.1 .50 2.5 .40 .20 .10 0 0 1.1 .50 18 .40 .20 .10 0 0 1.1 .50 9.0 .40 .20 .10 0 B.2 1.1 .50 7.0 .40 .20 .10 0 85 1.1 .50 4.2 .40 .20 .10 0 3.4 1.1 .70 6.7 .40 .20 .10 0 1.7 1.1 .70 6.7 .40 .20 .10 0 1.3 1.1 .60 4.2 .40 .20 .10 0 1.0 s - .60 2.7 .50 .20 .10 0 1.1 .60 2.0 .60 .20 .10 31 0 1.1 .80 .60 0 TOTAL 0 0 3, 51B. 20 102.8 28.80 39.50 108.60 23.40 8.90 3.00 MEAN 0 0 113 3.32 1.03 1.27 3.62 .75 .30 .097 MAX 0 0 1,890 85 1.3 15 20 1.6 .50 .10 MIN 0 0 0 0 .60 .40 .40 .40 .20 0 AC-FT 0 0 6,980 204 57 78 215 46 IB 6.0 CAL YR 1966 TO! 565 .00 MEAN 9.77 MAX 1,890 MIN 0 AC-FT 7,070 NTR YR 1967 TOTAL 3,833.20833.20 MEAN 10.5 MAX 1,890 MIN 0 AC-FT 7,600 DISCHARGE, IN CUBIC FEET PER SECOND, HATER YEAR OCTOBER 1967 TO SEPTEMBER 196B NOV DEC JAN FEB MAR APR MAY JUN JUL 1 3 0 .20 .50 .30 .10 2 0 0 .20 .50 .30 .40 3 0 0 .20 .50 .20 .30 4 0 0 .20 .50 .20 .20 5 c 0 .20 .50 .20 .20 6 0 0 .20 .50 .20 .20 7 0 0 .30 .50 .20 .20 8 0 0 .30 .50 28 .20 9 c 0 .30 .50 13 .20 10 0 0 .40 .50 1.7 .10 11 0 0 .40 .50 1.0 .10 12 0 0 .40 .50 .90 .10 13 0 0 .40 .50 .90 0 14 0 0 .40 .50 .90 0 15 0 0 .40 .50 .BO 0 16 0 0 .40 .40 .70 0 17 0 c .40 .40 .80 0 18 0 4.2 .40 .40 .BO 0 19 0 20 .40 .40 .70 0 20 4.0 .50 .40 .40 .60 0 21 3.7 .40 .40 .40 .56 0 22 .80 .40 .40 .40 .50 0 23 0 .40 .40 .40 .50 0 24 0 .40 .40 .30 .40 0 25 0 .40 .40 .30 .30 0 26 0 .30 .40 .30 .40 0 27 0 .30 .40 .30 .30 0 28 0 .30 .40 .30 .20 0 29 0 .30 .50 .30 .20 0 30 0 .30 .50 .20 0 31 .30 .50 .10 TOTAL 0 8.50 28.50 11.20 12.50 56.00 2.30 MEAN 0 .28 .92 .36 .43 1.81 .077 MAX 0 4.0 20 .50 .50 28 .40 MIN 0 C 0 .20 .30 .10 0 AC-FT 0 17 57 22 25 111 4.6 WTR YR 196B TOTAL 119.00 MEAN .33 MAX 28 MIN 0 AC-FT 236 SAN LUIS REY RIVER BASIN 11040000 SAN LUIS REY RIVER AT MONSERATE NARROWS, NEAR PALA, CALIF. --CONTINUED DISCHARGE. IN CUBIC FEET PER SECOND, HATER YEAR OCTOBER 1968 TO SEPTEMBER 1969 DAY OCT NDV DEC JAN FEB MAR APR MY JUN JUL 1 0 19 135 16 2.6 .35 .15 2 0 10 113 16 2.3 .35 .10 3 0 10 113 18 2.3 .43 .05 * 0 9.5 96 16 2.6 .27 .05 5 0 11 94 16 3.1 .35 .05 6 0 53 SB 16 2-8 .43 .10 7 0 70 76 14 2.3 .35 .10 a 0 22 72 14 1.8 .27 .15 9 0 17 68 13 1.6 .35 .21 10 0 16 67 12 1.4 .43 .21 11 0 14 54 12 1.2 .43 .10 12 0 13 45 12 1.1 .43 .05 13 0 13 41 10 1.1 .43 .05 14 0 11 37 9.5 1.0 .35 0 15 0 10 28 8.6 1.0 .35 0 16 0 12 20 8.2 .85 .43 0 17 0 11 16 7.9 .73 .43 0 ia 0 15 16 7.5 .63 .43 0 19 0 20 16 7.2 .63 .43 0 20 0 IB 14 6.2 .63 .35 0 21 0 15 17 5.6 .63 .35 0 22 0 29 20 5.6 .63 .35 0 23 0 30 19 4.9 .63 .43 0 2* 19 654 17 4.9 .53 .53 0 25 836 1,780 17 4.4 .53 .53 0 26 241 782 17 4.1 .53 .53 0 27 109 149 17 3.9 .53 .35 0 28 22 141 29 14 14 3.6 .43 .21 0 30 12 16 3.1 .53 .15 0 31 10 15 .35 0 TOTAL 0 0 C 1,263 1.37 MEAN 000 4D.7 141 44.9 9.46 1.21 .38 .044 MAX 0 C 0 836 1,780 135 18 3.1 .53 .21 PIN 0000 9.5 14 - 3.1 .35 .15 0 AC-FT 000 2,510 2.7 KIN 0 AC-FT 163 DISCHARGE, IN CUBIC FEET PER SECOND , WATER YEAR OCTOBER 1969 TO SEPTEMBER 1970 DAY JUN JUL 1 0 .85 18 .98 .35 2 0 .85 53 .98 .27 3 0 .85 11 .98 .27 4 0 .98 6.6 .73 .15 5 0 .85 11 .63 .15 6 0 . B5 4.9 .73 . 5 7 0 .98 4.1 .63 . 5 8 0 1.1 4.1 .53 . 5 9 0 1.1 4.1 .43 . 5 10 0 2.3 3.9 .35 . 5 11 .23 4.4 3.6 .27 .15 12 .85 3.3 3.3 .27 .15 13 .85 3.1 3.3 .27 .15 14 .85 2.6 3.3 .21 .15 15 .85 2.3 2.B .21 .15 16 .85 1.9 2.3 .21 .10 17 1. 1.8 2.1 .21 .10 18 1. 1.8 2.1 .21 .05 19 1. 1.4 1.8 .10 .10 20 1. 1.2 1.4 .15 .05 21 1. 1.1 1.4 .21 .03 22 . 8 1.1 1.4 .15 0 23 1. 1.1 1.2 .15 0 24 1. 1.1 1.1 .15 0 25 1. 1.1 1.1 .21 0 26 1. 1.1 1.2 .21 0 27 1. 1.1 1.1 .53 0 28 1. 3.9 .98 .43 0 29 .85 .98 .43 0 30 .85 1.1 .43 0 31 .85 1.1 0 3.12 0 0 MEAN 0 0 0 .65 1.65 5.14 .40 .10 0 0 MAX 0 0 0 1.1 4.4 53 .98 .35 0 0 MIN 0000 .85 .98 .10 0 0 0 AC-FT 0 0 0 40 91 316 24 6.2 0 0 13,760 SAN LUIS KEY RIVER BASIN 11041000 SAN LUIS KEY RIVER NEAR BONSALL, CALIF. LOCATION.--Lat 33°15'13", long 117°14'48", in SW^NE^EH sec.l, T.ll S. , R.4 W. , San Diego County, on left bank 0.7 mile downstream from bridge on State Highway 76 and 2.8 miles southwest of Bonsall. DRAINAGE AREA.--5I3 sq mi (revised). PERIOD OF RECORD.--July 1916 to September 1918 (gage heights :d dis rge measurements only), October 1929 to September 1970. GAGE.--Water-stage recorder. Datum of gage i 108.10 ft above mean level. See WSP 1928 for history of changes prior to Sept. 17, 1946. AVERAGE DISCHARGE.--41 years (1929-70), 18.6 s (13,480 acre-ft per ar) ; median of yearly mean discharges, 4.1 cfs (3,000 acre-ft per year). EXTREMES.--Maximums and minimums Xdischarge in cubic feet per econd, gage height in feet) fo the wat£ 1966-70 are contained in the following table: Minimu Wtr yi Discharge G.H. Date 1966 Nov. 23 1965 2,650 9.63 Most of year 1967 Dec. 7 1966 6,080 10.84 Long periods 1968 Mar. 8 1968 485 6.40 do. 1969 Feb. 25 7,700 11.43 Oct. 1 to Nov. 14, 1968 1970 Mar. 1970 374 a7,92 Sept,30, 1970 a From floodt Period of record: Maximum discharge, 18,100 cfs Mar. 3, 1938 (gage height, 16.04 ft, present datum), from rating curve extended above 2,400 cfs; no flow for part of each year. REMARKS.--Records poor prior to Mar. 6, 1970, and good thereafter. Flow regulated by Lake Henshaw (capacity, 194,300 acre-ft). Several diversions above station. REVISIONS (WATER YEARS).--WSP 881: 1938. DISCHARGE, IN CUBIC FEET .PER SECOND, MATER YEAR OCTOBER 1965 TO SEPTEMBER 1966 DAY 1 0 .0 .0 .5 .8 2.0 .20 2 0 ,0 .0 .0 .1 1.9 .10 3 0 .0 ^5 .0 .6 1.9 .20 11041000 SAN LUIS REY RIVER NEAR BONSALL, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEET PER SECOND, MATER YEAR OCTOBER 1966 TO SEPTEMBER 1967 1 0 4.0 i .4 7.0 8 .8 .30 2 0 4.0 .9 7.5 . .30 3 0 4.0 .7 8.0 . .30 4 0 4.0 . 5 7.5 .30 5 286 .30 6 1, 500 4.0 .7 7.0 .30 T 1, 540 4.0 .5 5.5 .20 8 45 4.0 .2 5.5 .20 9 30 4.0 8 3.5 . .20 10 20 4.0 .5 2.6 .20 11 20 4.0 .5 59 .20 12 12 4.0 .5 33 . .20 13 8.0 4.5 .5 1 16 . .20 14 7.5 4.0 .2 2 13 . .20 15 7.0 4.0 .2 4 10 . 0 .20 16 6.5 4.0 .2 1 9. .90 .20 17 6.0 4.0 .2 .0 8. .90 .10 18 5.8 4.0 .2 .6 8. .80 .10 19 5.6 4.0 .2 .3 8. .80 .10 20 5.5 4.0 .2 .0 8. .70 .10 21 5.4 4.0 .0 .9 8. .70 .10 22 5.2 11 .8 .9 8. .60 .10 23 5.0 72 .6 .8 10 .60 .10 24 4.8 19 .4 .7 8. .50 .10 25 4.6 248 .2 .7 8. .50 .10 26 4.3 19 .0 .7 8. .50 .10 27 4.0 17 .6 .7 9. .50 .10 28 4.0 14 .2 .7 8. .40 .10 29 4.0 12 -... .7 7. .40 .10 30 4.0 10 .7 6. .40 0 31 4.0 0 TOTAL 0 3, 554.2 515.5 180.8 224.8 317. 10 29.40 5.10 0 .98 .16 MAX 1,540 248 8.5 40 5 1.8 .30 KIN 0 0 4.0 4.2 3.9 2. .8 .40 0 AC-F7 10 H7R YR NOTE NO GAGE-HEIGHT RECORD EXCEPT DEC. 5-8, JAN. 22-25, APR. 11-14. DISCHARGE , IN CUBIC FEET PER SECOND, MATER YEAR OCTOBER 1967 TO SEPTEM ER 1968 DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL 1 0 4.0 4.4 4.1 3.3 4.0 .3 .40 .10 2 0 3.0 4.3 ' .0 3.3 15 .3 .40 .10 3 0 2.5 4.2 '>.0 3.2 9.5 .2 .40 ..10 4 0 2.4 4. 1 3 .9 3.2 8.0 .2 .40 .10 5 0 2.3 4.1 3.8 3.1 6.5 .1 .40 .10 6 0 .10 7 0 3.0 3.9 3.7 10 4.5 .0 .30 .10 8 0 2.8 3.9 3.7 148 3.7 .0 .30 .10 9 0 2.5 3.9 3 .7 29 3.5 .0 .30 .10 10 0 2.3 3.8 3.7 20 3.0 .90 .30 .10 11 0 2.0 3.8 3.6 18 2.6 .90 .30 .10 12 0 2.0 3.8 3 .5 IS 2.4 .90 .30 .10 13 0 2.3 3.8 .0 14 2.3 .90 .20 .10 14 0 2.3 3.8 t .5 11 2.1 .80 .20 .10 15 0 3.1 3.8 4.3 10 2.0 .80 .20 .10 16 0 4.0 3.8 4.2 9.0 2.0 .80 .20 .10 17 0 10 3.8 ',.1 7.0 2.0 .70 .20 .10 18 0 40 3.8 ' .0 6.0 1.9 .70 .20 .10 19 12 96 3.7 .9 4.7 1.9 .70 .20 .10 20 13 40 3.7 3.8 4.5 1.8 .70 .20 .10 21 28 30 22 IT 20 3.7 3.6 4.4 1.7 .60 .20 23 4.7 15 3.7 3.6 4.3 1.7 .60 .10 24 3.3 10 3.7 3.$ 4.3 1.6 .60 .10 25 26 27 2.8 5.6 4.5 3.4 4.1 1.5 .50 .10 28 29 2.4 $.0 4.5 3.4 4.0 1.4 .50 .10 30 5.0 4.7 31 4.5 4.1 4.0 .50 TOTAL 0 97.0 342.5 122.5 110.7 371.3 99.5 25.10 7.00 2.00 MEAN 0 3.23 11.0 3.95 3. 82 12.0 3.32 .81 .23 < .065 MAX 0 28 96 4.5 ! .0 148 15 1.3 .40 .10 MIN 0 0 2.0 3.7 3 .4 3.0 1.4 .50 .10 0 AC-FT 0 192 679 243 220 736 197 50 14 4.0 CAL YR 1967 TOTAL 1,812.90 NEAN 4.97 MAX 248 MIN 0 AC-FT 3,600 WTR YR 1968 TOTAL 1,177.60 MEAN 3.22 MAX 148 MIN 0 AC-FT 2,340 SAN LUIS KEY RIVER BASIN 11041000 SAN LUIS REY RIVER NEAR BONSALL, CALIF.--CONTINUED DISCHARGEt IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1968 TO SEPTEMBER 1969 NOV DEC JAN FEB ) .04 .5 48 ISO 35 8.4 .3 2. .50 . 0 ) .04 .4 42 100 50 8.0 .2 1. .50 . 2 .04 .3 39 75 44 7.9 .2 1. .50 .4 ) .04 , 1 37 60 41 7.7 .2 I. .50 . 6 ) .04 .0 33 50 40 7.5 .1 1. .50 . 9 .04 .9 238 48 45 .3 .1 1. .50 .61 ) .04 .8 103 46 40 .1 .1 1. .50 .83 } .04 .7 80 44 36 .9 .0 t. .50 .86 .04 .6 70 90 32 .7 .0 1. .50 .88 .04 .5 60 60 30 .6 .0 1. .50 .91 ) .10 .4 55 50 28 .4 .0 1. .50 .94 .08 .3 50 70 25 .2 .9 . 4 .51 .97 .07 .2 47 55 23 .1 9 0 .51 .0 .06 .0 46 48 21 .0 .9 )5 .52 .0 .10 .05 .0 45 45 19 .8 .8 )1 .52 .0 .10 .05 .0 44 42 18 -7 .8 .77 .52 .1 .10 .05 .8 43 40 17 .6 .8 4 .53 .1 .10 .04 .6 42 38 16 * .7 .71 .54 .2 .09 .05 .0 70 37 15 .09 2.5 .5 80 36 14 .C9 2.0 1 68 120 13 ;t .6 .63 .56 .3 .08 1.8 .0 143 60 12 .0 .6 .( 1 .57 .4 .08 1.6 .0 49 50 12 ^9 .6 .59 .58 .4 .07 1.4 1 1,870 45 11 .07 2.0 1.39 3,160 40 11 IB .06 3.0 50 847 39 10 ff .2 .54 .62 .6 .06 3.0 16 346 38 9.4 6 .1 3 .63 .7 .05 2.8 8 249 37 9.1 .5 .9 2 .64 .6 .05 2.7 7 __-._*.. 36 8.9 9 5 .7 1 .66 .8 .05 2.6 6 _ v_ 36 8.6 4.4 .5 . )0 .67 .9 2.5 5 35 *** TOTAL MEAN MAX 0 .10 3.0 1,3901.390 3,160 150 50 8.4 .3 2.2 .68 1.9 MIN 0 0 .04 1.2 33 35 8.6 4.4 .5 .50 .50 .70 AC-FT 0 2.5 57 4,790 15,880 .3,4103,410 1,380 364 221 58 34 69 CAL YR 1968 TOTAL 768.19 MEAN 2.10 MAX 148 MIN 0 AC-FT 1,520 NOTE NO GAGE-HEIGHT RECORD NOV. 15 TO JAN. 24, FEE . 27 TO SEPT. 30 DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTO »ER 1969 TO SEPTEMBER 1970 1 2.0 2.3 3.9 4 7.4 200 4.4 .8 1.6 .3 .32 .16 2 2.0 2.3 3.9 4. 7.3 80 4.3 . .68 .3 .30 .18 3 2.0 2.3 3.9 4. 7.2 45 4.3 . .67 .4 .29 .16 4 2.0 2.3 3.9 4. 7.1 10 4.1 ^ .77 .1 .21 .17 5 2.0 2.3 3.9 4. 7.0 45 4.1 .95 .3 .20 .17 6 2.0 10 .8 4. 6.8 25 4.1 . 2.9 .1 .23 .14 7 2.0 7.0 .8 4. 6.7 IB 3.7 , 4.9 .66 .27 .10 8 2.0 6.0 .8 4. 6.6 16 3.2 , 5.2 .53 .19 .08 9 2.0 3.7 .8 4. 7.5 14 3.1 . 4.5 .0 .15 .09 10 2.0 5.0 .5 5. 8.5 15 3.1 4.1 .2 .10 .09 11 2.1 4.7 .4 6. 10 13 2.8 1. 4.5 .4 .OB .07 12 2.1 4.5 .4 5. 8.0 11 3.2 . 6 4.1 .9 .09 .09 13 2.1 4.4 .4 4.8 7.0 10 3.1 .81 3.5 .5 .10 .OB 15 2.1 4.3 4.3 6.0 5.5 10 2.4 .64 3.8 .1 .08 .07 17 2.1 4.2 4.3 14 4.5 8.7 2.8 .49 2.0 .4 .06 .12 18 2.2 4.2 4.2 12 4.2 7.9 3.1 .46 1.6 .1 .06 .13 19 2.2 4.2 4.2 11 3.9 5.9 3.1 .43 2.0 .3 .07 .16 20 2.2 4.1 4.2 10 3.4 5.2 3.4 .45 3.4 .0 .08 .18 21 .13 .16 23 .15 .16 24 2.2 4.0 4.1 B.8 3.2 5.9 1.6 .56 2.0 .85 .16 .20 25 2.2 4.0 4.1 8.5 3.2 5.5 1.7 .64 1.9 .81 .16 .15 26 2.3 3.9 4.1 8.3 3.2 5.5 1.9 .68 1.8 .99 .12 .18 27 2.3 3.9 4.1 8.1 3.1 5.1 3.1 1.1 1.7 1.4 .10 .11 28 2.3 3.9 4.1 7.9 10 4.5 2.8 1.4 1.6 1.0 .12 .05 29 2.3 3.9 4.1 7.7 5.9 2.1 1.6 1.5 .56 .16 .01 30 .17 0 31 2.3 4.0 7.5 5.5 1.9 .41 .15 TOTAL 66.1 126.0 128.4 223.3 162.4 618.5 90.2 33.42 76.37 37.37 4.58 3.58 MEAN 2.13 4.20 4.14 7.20 5.80 20.0 3.01 1.08 2.55 1.20 .15 .12 MAX 2.3 10 4.8 15 10 200 4.4 1.9 5.2 2.5 .32 .20 MIN .43 .67 .41 .06 0 »C-FT 131 250 255 443 322 9.1 7.1 WTR YR 1970 TOTAL 1,570.08 MEAN 4.30 MAX 200 MIN 0 AC-FT 3.110 NOTE. NO GAGE-HEIGHT RECORD OCT. 1 TO MAR.-6. SAN LUIS REY RIVER BASIN 11042000 SAN LUIS REY RIVER AT OCEANSIDE, CALIF. LOCATION. --Lat- 33°12'48", long 117°22'33", in SWSsSESijSWSs sec.14, T.ll S. , R.S W. , San Diego County, on right bank 0.7 mile upstream from bridge on U.S. Highway 101, 1.1 miles upstream from mouth, and 1.2 miles north of Oceanside. DRAINAGE AREA.--558 sq mi Crevised). PERIOD OF RECORD.--April 1912 to September 1914 (published as "near Oceanside"), January 1916, October 1929 to January 1942, October 1946 to September 1970. GAGE.--Water-stage recorder. Altitude of gage is 20 ft (from topographic map). April 1912 to September 1914 nonrecording gage at site 0.8 mile upstream at different datum. Janua-ry 1916 nonrecording gage 0.2 mile down stream at different datum. AVERAGE DISCHARGE.--38 ye (1912-14, 1929-41, 1946-70), 15.4 cfs (11,160 acre-ft per year); median of yearly mean discharges, zero. EXTREMES.--Maximums and minimums (discharge in cubic feet per second, gage height 3t) for the water years 1966-70 are contained in the following table: Maxi Minimum, daily Wtr yr Date Discharge G.H. Date Discharge 1966 Nov. 23 1965 624 13.31 1967 1966 4,680 16.69 1968 1968 147 9.63 Oct. 1 to Nov. 21, 1967 1969 11,500 Sept.30, 1969 .34 1970 530 7.53 Nov. 4, 1969 .11 Period of record: Maximum discharge, 95,600 cfs 27, 1916, from hydrograph based on discharge measure- ments; no flow for several months in most years. REMARKS.--Records good except those for periods of no gage-height record, which are poor. F ow regulated by Lake Henshaw (capacity, 194,300 acre-ft). Several diversions for irrigation and domestic use bove station. AVER- AGE DISCHARGE represents flow to ocean during period of record, regardless of upstream de elopment. DISCHARGE. IN CUBIC FEET PER SECOND. MATER YEAR OCTOBER 1965 TO SEPTEMBER 1966 JUS JUL AUG 0 .10 .7 0 .10 .8 0 Q .4 0 Q .2 0 0 6 0 0 .6 0 0 .6 0 0 .4 0 0 .2 < 0 .80 .8 0 3.4 .6 0 4.7 .5 0 4.7 .4 0 0 7.3'5.0 .2 0 0 .2 0 0 15 .1 .30 0 16 .0 .20 0 12 .90 .20 0 8.9 .90 .10 0 6.9 .1 .10 0 .7 .2 .10 0 .4 .1 .10 139 6 .1 .10 46 .8 .1 .10 12 .6 .90 .10 5.8 .0 .70 .10 2.8 .6 .60 0 1.0 .4 .30 0 .60 .5 .20 .30 .4 .50 31 - .2 j.5 TOTAL 207.50 11 .10 50.40 30.20 0 0 0 MEAN 6.92 .84 1.63 1.08 0 0 0 MAX 139 16 4.7 5.3 0 0 0 MIN 0 0 .20 000 0 AC-FT 412 236 100 60 0 0 0 I 326.60 MEAN .89 MAX 139 MIN 0 AC-FT 648 SAN LUIS REY RIVER BASIN 11042000 SAN LUIS REY RIVER AT OCEANSIDE, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1966 TO SEPTEMBER 1967 NOV DEC JAN* FEB MAR APR MAY JUN JUL 1 0 .10 2.4 0 .70 .50 2 0 .10 1.2 0 1.2 .50 3 0 .10 1.5 0 1.4 .50 4 C .10 2.6 0 .60 .40 5 0 .10 1.2 0 .70 .40 6 191 0 .70 0 .70 .30 7 1,700 0 .40 0 .60 .20 8 57 0 .30 0 .60 .20 9 16 0 .20 0 .50 .20 10 11 .10 0 .40 .20 11 12 0 .10 0 4.8 .20 12 4.8 0 .10 0 24 .20 13 3.0 0 0 .10 6.3 .10 14 2.4 0 0 4.6 3.2 .10 15 1.6 0 0 6.3 2.3 0 16 1.0 0 0 2.8 1.4 0 17 .90 0 0 1.9 1.0 0 18 .70 0 .10 1.5 .70 0 19 .50 0 .10 1.0 1.2 0 20 .40 0 0 .70 4.6 0 21 .30 0 0 .40 3.6 0 22 .20 .10 21 ' 0 .30 4.1 0 23 .10 .20 .30 8.0 0 24 .10 17 .40 .20 3.6 0 25 .10 195 .20 .20 2.1 0 26 .10 22 .20 .20 1.6 0 27 .10 12 .10 .20 1.2 0 28 .10 7.6 . 0 .20 1.0 0 29 .10 5.2 .20 .80 0 30 .10 4.4 .10 .70 0 31 .10 3.6 TOTAL 0 0 2,063.70 . 288.40 12.10 21.50 83.80 4.00 0 0 0 0 MEAN 0 0 64.6 9.30 .43 .69 2.79 .13 0 0 0 0 MAX 0 0 1,700 195 2.6 6.3 24 .50 0 0 0 0 MIN 0 0 0 0 0 0 .40 0 0 0 0 0 AC-FT 0 0 3,970 572 24 43 166 7.9 0 0 0 0 CAL YR 1966 TOTAL 2,084 .30 MEAN 5.71 MAX 1,700 MIN 0 AC-FT 4,130 NOTE . NO GAGE-HEIGHT RECORD DEC . 20 TO JAN. 21. OISCHA GE, IN CUt 1C FEET PER SECOND, WATER YEAR OCTOBER 1967 TO SEPTEMBER 1968 DAY OCT NOV DEC JUN JUL AUG SEP 1 0 .40 2 0 2.9 2.1 2.1 5.4 2.6 1.7 3.6 1.4 .30 3 0 1.6 2.8 2.1 2.1 6.0 2.6 1.6 3.0 1.4 .30 4 0 1.0 2.8 2.1 2.0 4.6 2.6 1.5 2.6 1.4 .30 5 0 .90 2.7 2.1 2.0 3.8 2.6 1.5 2.3 1.4 .30 6 0 .30 7 0 1.4 .40 8 0 1.2 2.5 1.9 36 3.2 2.6 1.4 1.8 1.2 .40 9 0 .80 2.4 1.9 77 3.2 2.6 1.3 1.7 1.2 .40 10 0 .70 2.4 2.0 36 3.2 2.6 1.3 1.6 1.1 .50 11 C .70 2.4 2.0 30 3.2 2.7 1.3 1.6 1.1 .50 12 0 .70 2.3 1.9 26 3.2 2.7 1.3 1..5 1.0 .50 13 0 1.0 2.3 2.5 21 3.2 2.7 1.2 1.5 1.0 .60 14 0 1.0 2.3 2.7 18 3.2 2.7 1.2 1.5 .90 .60 15 0 1.5 2.3 3.5 12 3.2 2.7 1.2 1.5 .90 .60 16 0 .90 .70 17 0 1.2 1.5 .90 .70 18 0 12 2.3 3.1 11 3.2 2.7 1.1 1.5 '.80 .70 19 0 74 2.3 3.0 4.1 3.2 2.7 1.1 1.5 .80 .60 20 0 52 2.2 2.9 4.0 3.2 2.7 1.1 1.5 .80 .80 21 0 25 2.2 2.8 3.8 3.0 2.8 1.1 1.4 .70 .90 22 1.2 18 2.1 2.7 3.7 3.0 2.8 1.1 1.4 .70 .90 23 3.8 14 24 1.9 25 .50 26 .10 4.8 .60 .1 27 .10 4.3 2.5 2.3 3.2 2.8 2.8 1.0 1.4 .50 .2 28 .10 .50 .2 29 .40 .50 .3 30 1.5 3.5 2.3 2.9 2.7 2.3 1.0 1.4 .40 .3 31 TOTAL 0 9.60 257.40 74.0 70.4 338.5 101.4 82.2 37.2 56.0 28.40 21.10 MEAN 0 .32 8.30 2.39 2.43 10.9 3.38 2.65 1.24 1.81 .92 .70 MAX 0 3.8 74 1.3 MIN 0 0 .70 .30 AC-FT 0 19 511 56 42 CAL YR 1967 TOTAL 676. 80 MEAN 1.85 MAX 195 MIN 0 AC-FT 1,340 WTR YR NOTE. NO GAGE-HEIGHT RECORD FOR MOST OF YEAR. SAN LUIS KEY RIVER BASIN 11042000 SAN LUIS REY RIVER AT OCEANSIDE, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEE PER SECOND, WATER YEAR OCTOBER 1968 TO SEPTEMBER 1969 DAY 0CT NOV DEC JAI> FEB 1 1.9 1.5 2. 30 82 20 5.8 3. 2.5 1.9 1.1 2 1.9 1.5 2. 2B 66 IB 5.6 3. 2.5 1.9 l.l 3 1.9 1.5 2. 27 60 35 5.4 3. 2.5 .8 1.0 4 1.9 1.5 2. 27 58 20 5.2 3. 2.4 .B 1.0 5 1.9 1.5 2. 27 56 IB 5.0 3. 2.4 .B .97 6 2.0 1.6 2. 105 55 23 4.9 3. 2.4 .B .94 7 2.0 1.5 2. 197 54 IB 4.7 3. 2.4 .7 .91 8 2.0 1.4 2. 76 53 17 4.6 3. 2.4 .7 .90 9 2.0 1.2 2. 59 52 16 4.6 3. 2.4 1.7 .87 10 2.0 l.l 2. 52 51 15 4.5 3. 2.4 1.7 .84 11 2.0 1.2 2. 48 5C 14 4.5 3. 2.3 1.6 .81 12 2.0 1.2 2. 4? 50 13 4.5 2. 2.3 1.6 .77 13 2.0 1.6 2. 40 65 12 4.4 2. 2.3 1.6 .75 1* 2.0 1.8 3. 38 117 12 4.3 2. 2.3 1.6 .73 15 2.0 1.8 3. 37 34 12 4.2 2. ) 2.3 1.5 .70 16 2.0 1.8 2. 36 25 11 4.2 2. ) 2.3 1.5 .67 17 1.9 1.8 2. 37 20 11 4.1 2. 2.3 1.5 .65 IB 1.8 1.6 3. 46 20 10 4.0 2. ) 2.2 1.5 .62 19 1.7 1.6 4. 66 17 10 4.0 2. ) 2.2 1.4 .59 20 1.7 1.6 3. 93 17 10 3.9 2.- 2.2 1.4 .56 21 1.6 1.8 3. r 2.2 1.4 .54 22 1.6 1.8 3. 129 164 B.B 3.B 2. r 2.1 1.4 .52 23 1.6 1.9 2. 106 67 8.4 3.7 2. 2.1 1.3 .50 24 .47 25 .7 1.5 2.3 491 2,340 34 7.5 3.6 2.6 2.1 1.3 .45 26 .8 1.5 2.6 738 3,340 2B 7.2 3.6 2.6 2.0 1.2 .42 27 .8 1.5 2.6 1B4 202 27 6.B 3.5 2.6 ' 2.0 1.2 .40 28 .8 1.5 2.8 71 117 25 6.5 3.5 2.6 2.0 1.2 .38 29 .36 30 .6 1.5 2.B 35 23 6.0 3.4 2.5 2.0 1.1 .34 31 TOTAL 4 .7 54.0 56. B 1,658.4 8,686 1,516 3B9.9 132.0 B6.3 69.5 46.7 20. B6 MEAN 1 57 1.80 1.83 53.5 310 48. 9 13.0 4.26 2.88 2.24 1.51 .70 MAX .8 2.0 3.0 738 3,340 164 35 5.B 3.4 2.5 1.9 1.1 M1N .34 773 262 171 136 93 41 DISCHARGE. IN CUBIC FEET PER SECOND , HATER YEAR OCTOBER 1969 TO SEPTEMBER 1970 DAY OCT NOV DEC JAN FEB AUG SEP 1 .32 .32 1.5 3.8 2.1 45 2.B 2.B 3.6 4.3 2.5 3.0 2 .32 .23 i.a 3. 2.1 264 2.8 2.5 3.7 3.3 2.5 3.0 3 .32 .23 2.1 3. 2.5 67 3.3 2.1 3.8 2.5 2.5 3.0 4 .23 .11 2.5 3. 2.8 16 2.B 1.8 4.3 2.5 2.5 3.0 5 .16 .42 2.1 3. 3.3 53 2.5 l.B 3.3 2.8 2.5 3.0 6 .16 .54 2.1 3. 3.3 66 3.3 1.9 3.3 3.3 2.6 3.1 7 .85 1.8 2.1 3. 3.8 39 3.3 1.9 3.3 3.8 2.6 3.1 8 1.8 6.9 2.1 3. 3.B 13 2.8 2.D 3.B 4.3 2.6 3.1 9 2.8 8.4 2.B 3. 3.8 12 2.8 2.1 3.8 4.9 2.6 3.1 10 3.3 7.6 2.8 3.B 8.4 11 11 3.3 3.3 2.5 5.5 12 10 3.3 2.2 4.3 4.3 2.7 3.1 12 2.1 3.3 2.5 6.2 11 13 1.8 4.3 2.1 4.9 10 13 2.8 14 15 3.8 4.9 16 17 3.8 3.8 2.5 12 18 4.9 3.8 2.1 22 6.9 4.9 2.B 2.7 4.3 1.8 2.8 3.2 19 20 21 22 23 1. 24 2. 1 2.8 2.1 3.3 3.8 2.8 3.3 3.1 3.3 2.5 2.9 3.2 25 3. 3 2.8 2.1 2.5 3.8 2.8 3.8 3.1 3.8 2.1 2.9 3.2 26 3. 27 3. J 2.5 2.5 2.5 4.3 2.5 4.3 3.3 3.3 2.5 3.0 3.3 28 29 1.8 1.8 30 .85 1.5 2.5 2.1 3.8 2.B 3.5 3.3 2.5 3.0 3.3 31 3.3 2.1 2.8 3.5 2.5 3.0 DIAL 70.63 96.65 69.9 150.6 151.2 693.5 99.6 81.9 112.2 93.8 85.5 94.5 EAN 2.28 3.22 2. 25 4. B6 5. 40 22.4 3.32 2.64 3.74 3.03 2.76 3.15 AX IN .16 .11 C-FT 140 192 139 299 300 1,380 19B 162 223 186 170 187 CAL YR 1969 TOTAL 12,842.84 MEAN 35.2 MAX 3,340 MIN .11 . AC-FT 25,470 WTR YR 1970 TOTAL 1,799.98 MEAN 4.93 MAX 264 MIN .11 »C-FT 3,570 NOTE. NO GAGE-HEIGHT RECORD AUG. .1 TO SEPT. 30. SANTA MARGARITA RIVER BASIN 11042400 TEMECULA CREEK NEAR AGUANGA, CALIF. rside County, on right bank DRAINAGE AREA.--131 sq mi. PERIOD OF RECORD.--August 1957 to September 1970. rom topographic map). s, 5.02 cfs (3,640 acrf r); median of yearly i an discharges, 1.6 cfs (l',200 EXTREMES.--Maximums and minimums (discharge in cubic feet per second, gage height in feet). Annual maximum dischi rs 1966 -70 Date Time Disch. G.H. Date Time Disch. G.H. Date Dis ch. G.H. Nov. 22, 1965 2130 *2,320 6.37 Mar. 13, 1967 2345 140 2.12 Jan. 21, 1969 - 100 - Dec. 29, 1965 2300 295 2.80 Apr. 11, 1967 1130 168 2.28 Jan. 25, 1969 *2, 550 7.44 Apr. 22, 1967 0530 282 2.79 Feb. 6, 1969 1030 424 3.39 Dec. 6, 1966 2000 Feb. 25, 1969 2, 550 alO.6 Jan. 24, 1967 2400 Dec. 18, 1967 2000 *72 2.22 Mar. 8, 1968 1300 67 2.18 Mar. 2, 1970 1015 * 109 2.46 Annual minimum daily discharge, r years 1966-70 Wtr yr Date 1966 Long periods Oct. 1-9, 17, 1968 1967 Aug. 9, 1970 1968 do! od of cord: Maximum discharge, 3,540 cfs Apr. 3, 1958, from rating curve extended ab gage ight, 10.6 ft (from floodmarks) Feb. 25, 1969; no flow at times in each year. REMARKS.--Records good except those for water years 1969-70, which are poor. No gage-height reco REVISIONS.--WSP 1928: Drainage area. DISCHARGE, IN CUBIC FEET PER SECOND, MATER YEAR OCTOBER 1965 TO SEPTEMBER 1966 DAY 1 0 6.8 26 .6 .90 2 D 5.6 18 .9 .70 3 0 4.8 15 .2 .70 4 0 4.5 13 .0 .70 5 0 4.0 11 .7 .60 6 0 3.4 9. I .50 1 0 2.9 8. 2 .40 6 0 2.7 7. 1 ' .50 9 0 6.7 7. 1 .90 10 0 13 6. 1 .90 11 0 11 6. ! .90 12 0 B.9 5^ .0 .90 13 0 9.4 5. .8 .70 14 0 B.6 5. .3 .60 15 0 7.B 4. .9 .50 16 0 7.8 4. .3 .40 17 0 7.2 4, .9 .40 18 0 5.9 4. .B .30 19 0 5.1 4. .3 .20 20 0 4.6 4. .B .20 21 0 4.1 3, .3 .20 22 587 6.3 3. .1 .20 23 635 6.6 3. .2 .20 24 100 5.5 3^ .1 .20 25 50 5.3 3. .3 .20 26 20 5.0 3 B .1 0 .20 27 15 4.5 3. .1 .20 28 11 4.2 3. .0 .20 29 9.6 32 3. .20 30 8.3 92 8...... 20 31 ...... 36 8. ______.20 TDTAt 0 1,435.9 332.2 220.3 217.7 10 4 50 14.10 MEAN 0 47.9 10.7 7.11 7.78 3 1 52 .45 MAX 0 635 92 26 29 2.2 .90 MIN 0 0 2.7 3.4 4.0 .80 .20 AC-FT 0 2,850 659 437 432 21 90 2B SANTA MARGARITA RIVER BASIN 11042400 TEMECULA CREEK NEAR AGUANGA, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1966 TO SEPTEMBER 1967 APR MAY JUN JUL AUG SEP 1 0 3. 9.2 6.6 20 .4 .7 .04 .03 2 C 3. 8.9 . 8.4 1 .0 .5 0 .03 3 .1' 3. 8.4 7.2 1 .8 .2 0 .03 4 0 3. .9 . 8.6 I .8 .1 0 .03 5 335 3. ,4 19 1 .7 .1 0 .03 6 1,170 3. .6 . 11 1 .8 .93 0 .03 7 274 2. .5 9.1 I .6 .SB 0 .03 8 49 2. .0 .< 8.7 .7 .4 .74 0 .03 9 31 2. .6 ,' 7.7 .5 .5 .67 0 .03 10 25 2. .0 7.1 .7 .7 .57 0 .03 11 21 2. 6 . 48 , 2 .8 .50 0 .03 12 17 2. .4 34 , 1 .8 .75 0 .03 13 13 I. .4 1 26 .5 .6 .92 .01 .OB 14 12 2^ .3 4 22 *6 .6 .68 .01 .04 15 11 B 2 1 21 16 9.2 2> .1 1 18 ,9 .4 .39 .01 .03 17 8.8 2. .8 .6 17 .5 .4 .37 .01 .10 IB 7.8 2. .9 .2 17 . 5 .4 .34 .01 .14 19 6.8 2. .8 .9 32 .3 .1 .31 .01 .16 20 6.3 2. .6 .9 27 .1 .9 .27 .01 .16 21 5.9 2. ,3 .6 26 .7 .5 .23 .03 .12 22 $.4 5. .2 .0 125 .3 .2 .22 .03 .11 23 5.0 46 .2 .6 64 .5 .0 .20 .03 .12 24 4.7 58 .9 .3 46 .2 .6 .19 .03 .13 25 4.5 91 .8 .2 38 9 .6 .17 .03 .14 26 4.3 30 .0 .1 32 .1 .6 .16 .03 .10 27 4.1 18 .5 .0 27 .0 .3 .14 .03 .10 28 3.9 16 .3 .9 25 .3 .3 .12 .03 .10 29 3.7 13 .1 25 5 1 .11 .05 .20 30 3.5 10 .1 22 .6 .9 .10 .05 .20 31 3. 4 9.5 .6 .6 .09 .05 TOTAL 0 0 2.045.40 350.7 155.0 233.9 785.4 256.6 11 .7 17.18 .51 2.42 CEAN 0 C 66.0 11.3 5.54 7.55 26.2 8.28 3 96 .55 .017 .081 MAX 0 HIM 0 0 0 2.0 3.3 3.3 6.6 4.9 .9 .09 0 .03 AC-FT 0 0 4,060 696 307 464 1,560 509 235 34 1.0 4.8 CAL YR 1966 TOTAL 2,649.20 MEAN 7.26 MAX 1,170 HIM 0 AC-FT 5,250 , WATER DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 .20 .C3 1. 3. 2.0 1.8 3.1 .8 .39 .12 2 .15 .02 1. 3. 1.9 1.9 8.B .9 .34 .11 3 .15 .02 1. 3. 1.9 l.B 7.2 .8 .26 .11 4 .15 .05 1. 3. 1.8 1,7 5.2 .8 .28 .11 5 .14 .07 I. 2. 1.7 1.6 4.3 .8 .29 .10 6 .13 .OB 1. 2. 1.6 1.7 4.0 .8 .31 .13 7 .16 .09 1. 2. 1.6 2.0 3.6 .6 .38 .15 a .12 .07 1. 2. 1.8 23 3.4 .5 .47 .12 9 .OB .09 1. 2. 1.8 16 3.3 .5 .54 .10 10 .10 .09 1. 2. l.B 9.7 3.3 .5 .46 .08 11 .04 .09 1. 2. 1.9 7.3 3.1 .4 .32 .09 12 .01 .09 1. 2. 1.8 5.8 3.1 .9 .25 .06 13 0 .12 1. 2. 2.2 5.3 3.1 .0 .23 .07 14 0 .12 1. 2. 2.5 5.1 3.0 .6 .21 .09 15 0 .12 1. 2. 2.1 4.5 2.9 .4 .14 .10 16 0 .13 1.6 2. 2.1 4.1 3.0 1.3 .11 .07 17 0 18 0 .18 1$ 2 , 2.1 3.9 3.7 1.0 .09 .05 19 c .25 25 2. 2.0 3.9 3.0 .68 .09 .05 20 0 .22 12 2. 2.0 3.5 3.0 .83 .08 .Of 21 0 .24 7. 1. 2.0 3.3 2.9 .87 .08 .02 22 0 .71 5. 1. 2.1 3.1 2.8 .95 .10 .03 23 0 .77 4. 1. 2.0 3.0 2.5 .67 .13 .03 24 0 .65 4. 1. 1.9 3.0 2.4 .84 .14 .04 25 0 .58 4. 1. l.B 3.0 2.3 .74 .14 .04 26 .02 .58 4. 1. 1.8 3.0 2.3 .63 .10 .04 27 .04 .59 4. 2. 1.8 2.8 2.3 .4B .10 .06 28 .04 .96 4. 3. 1.9 2.6 2.2 .45 .08 .09 29 .07 1.0 4. 2. 1.8 2.6 1.9 .40 .08 .04 30 .07 1.1 4. 2. 2.6 l.B .42 .09 .02 31 _ns SANTA MARGARITA RIVER BASIN 11042400 TEMECULA CREEK NEAR AGUANGA, CALIF.--CONTINUED DISCHARGE , IN CU DAY OCT UN JUL AUG SEP 1 0 .06 .15 8.4 .4 . .29 .18 2 0 .06 .15 .9 4.5 110 13 8.2 .3 . .31 .17 3 0 .06 .15 .9 4.0 95 19 8.0 .3 . .29 .14 4 0 .07 .16 .9 3.5 80 15 9.0 .2 . .29 .14 5 0 .07 .17 .9 10 62 14 8.1 .1 . .26 .13 6 0 .07 .18 .9 280 55 17 9.0 .0 . .22 .12 7 0 .07 .19 .9 50 46 14 10 .0 . .22 .15 a 0 .07 .16 .9 35 45 13 9.4 .9 . .25 .19 9 0 .07 .16 1.0 25 44 16 8.3 .8 . .23 .16 10 .01 .08 .19 1.0 18 62 15 7.6 .8 . .22 .17 11 .01 .06 .20 1.0 14 50 14 7.3 .7 . .24 .17 12 .01 .09 .20 1.0 12 45 13 7.0 .7 . .20 .16 13 .01 .11 .21 1.2 12 38 12 6.7 .7 . .19 .15 14 .02 .11 .21 8.1 11 35 12 6.5 .6 . .20 .21 15 .02 .13 .22 5.0 11 33 12 6.3 .6 . .18 .23 16 .01 .12 .22 2.0 10 30 11 6.1 .5 . Z .16 .23 17 0 .12 .22 1.5 11 27 11 6.0 .5 . 1 .17 .23 18 .01 .10 .22 1.4 14 25 11 5.9 .4 .88 .18 . .20 19 .01 .10 .23 1.7 22 24 11 5.8 .4 .81 .18 .25 20 .02 .10 .32 41 30 23 11 5.7 .3 .76 .18 .28 21 .02 .10 .31 19 60 78 10 22 .01 .11 .50 7.0 120 50 10 5.4 .2 .38 .14 .28 23 .01 .11 .49 5.0 210 35 10 5.3 .2 .61 .11 .21 24 .01 .11 .59 8.2 1,070 31 9.8 5.2 .1 .67 .12 .21 25 .02 .12 .73 950 2,200 25 9.6 5.1 .1 .57 .15 .15 26 .02 .12 1.9 300 550 24 9.4 5.0 .0 .53 .15 .18 27 .02 .12 2.0 100 290 22 9.2 4.9 .0 .57 .16 .16 28 .02 .13 1.5 42 200 21 9.0 4.8 .8 .57 .19, .20 29 .03 .13 1.3 20 8.8 4.7 .4 .47 .19 .18 19 '8.6 30 .05 .13 1.2 10 18 4.6 .1 .37 .20 .16 31 5.70 MEAN .19 MAX .05 .13 2.0 950 2,200 150 19 10 .4 1.9 - .31 .31 MIN .12 AC-FT .8 5.8 31 3,060 10,480 2,810 719 405 209 63 12 11 DISCHARGE , IN CU 5IC FEET PER SECOND , MATER YEAR OCTOBER 1969 TO S EPTEMBER 1970 DAY OCT NOV DEC JUN JUL AUG SEP 1 .16 .55 1.4 2.1 1.8 49 2.9 2.4 1 0 .41 .19 .32 2 .17 .57 1.5 2.0 1.8 58 2.8 2.0 .73 .37 .17 .31 3 .22 .58 1.5 2.0 1.8 22 2.8 1.8 60 .36 .22 .34 4 .28 .61 1.5 2.0 1.8 12 2.5 1.7 70 .30 .29 .39 5 .23 .67 1.5 2.0 1.8 27 2.3 1.7 80 .29 .36 .45 6 .28 .91 1.6 2.0 l.B 14 2.3 1.8 80 .34 .34 .48 7 .28 1.8 1.6 2.0 1.8 9.7 2.3 2.0 86 .32 .27 .41 8 .28 1.7 1.2 2.0 1.7 8.0 Z.4 2.1 1 1 .35 .18 .40 9 .28 1.4 2 .43 . 14 .39 10 .33 1.4 1.5 2.2 1.8 6.8 2.2 2.1 1 3 .39 .17 .36 11 .37 1.3 2 .39 .24 .30 12 .38 , .36 13 .38 1.1 1.8 1.8 2.5 5.0 2.3 1.8 1.1 .37 .42 .44 14 .39 .59 15 .43 1.3 1.3 2.2 2.2 4.4 2.5 1.4 1 0 .29 .34 .58 16 .36 1.4 1.1 2.3 2.2 4.1 2.6 1.2 1 0 .33 .34 .52 17 .33 96 .34 .43 .46 18 .45 1.2 1.8 2.3 2.1 3.8 2.7 1.1 87 .38 .39 .40 19 .51 1.1 l.B 2.2 1.9 3.6 2.6 1.1 74 .26 .39 .39 20 .50 1.1 1.8 2.2 1.9 3.5 2.6 1.2 63 .30 .40 .40 21 .45 1.1 1.9 2.2 1.9 3.4 2.8 1.3 56 .37 .40 .51 22 .52 1.2 2.0 1.7 1.8 3.4 2.9 1.3 59 .41 .35 .54 23 .54 1.2 2.0 1.8 24 .55 1.2 1.7 2.1 1.9 3.1 2.4 1.3 .49 .38 .36 .50 25 .56 26 .62 1.7 .39 .35 ..46 .50 27 .59 .76 2.1 1.9 1.8 3.1 3.3 1.8 .35 .35 .57 .50 2B B.8 2.9 4.1 1.9 .37 .36 .47 .50 29 .53 1.2 2.1 1.7 2.9 3.5 1.8 .49 .31 .40 .50 30 .46 1.3 2.1 1.7 3.1 2.9 1.5 .48 .35 .29 .50 31 .51 2.1 1.7 3.1 1.3 .29 .33 13.32 MEAN .41 1.12 1.71 2.04 2.24 9.44 2.63 1.64 .76 .35 .33 .44 MAX .62 1.8 2.1 2.5 8.8 58 4.1 2.4 1.3 .43 .57 .59 MIN .16 .55 1.1 1.7 1.3 2.9 2.2 1.1 .'35 .26 .14 .30 AC-FT 25 67 105 125 124 581 156 101 46 . 21 20 26 WTR YR 1970 TOTAL 704.92 MEAN 1.93 MAX 58 MIN . 14 AC-FT 1,400 SANTA MARGARITA RIVER BASIN 11042500 TEMECULA CREEK AT VAIL DAM, CALIF. LOCATION.--Lat 33°29'44", long 116°58'33", in Pauba Grant, Riverside County, at Vail Dam, 0.2 mile downstream from Arroyo Seco and 10 miles east of Temecula. DRAINAGE AREA.--320 sq mi. PERIOD OF RECORD.--October 1948 to September 1970. January 1923 to October 1930 at site 200 ft downstream and October 1930 to September 1948 at site 500 ft downstream, published as "at Nigger Canyon, near Temecula"; on, near Temecula"; rec rds are for draft and spill only near Temecula." 500 ft downstream measures release and spill. AVERAGE DISCHARGE.--25 years (1923-48), 14.5 cfs [10,500 acre-ft per year); median of yearly mean discharges, 8.3 cfs (6,000 acre-ft per year), see PERIOD OF RECORD; 22 years (1948-70), 5.77 cfs (4,180 acre-ft per year); median of yearly mean discharges, 2.2 cfs (1,600 acre-ft per year). REMARKS.--Records of discharge represent all water reaching Vail Lake, including precipitation on lake surface. Discharge computed on basis of records of storage, release (draft), spill, and evaporation. Monthly evapora tion from lake surface computed on basis of evaporation from a class A evaporation pan using coefficient of 0.77, excepting the period June 1964 to September 1965 when a 24-inch diameter sunken screen pan with a coefficient of 0.98 was used. Area-capacity tables for lake are based on a survey made in 1947. Vail Dam ompleted in June 1949. Capacity of lake at spillway level (elevation, 1,470.00 ft), 49,370 acre-ft. Dead no spill since Nov. 13, 1948, date of closure. Water is released as re quired down Temecula Creek for diver- REVISIONS. --WSP 1928: Drainage area. MONTHLY DISCHARGE, WATER YE VRS OCTOI ER 1965 TO S EPTEMBER 1970 MONTH E LEVATION CONTENTS CHANGE DRAFT EVAPO- DISCHARGE FEETlt (ACRE- IN (ACRE- RATION (ACRE- FEET) ( ACRE- FEET) VAIL LAKE FEET) OCTOBER 1965...... ,387.29 1,982 -35 0 79 44 ,399.69 0 51 2,513 ,401.44 4,922 + 78 0 54 532 +3, 00 10 838 4,248 , 02. 0 5,223 + 01 0 55 356 , 04. 3 5,700 + 77 0 62 539 MARCH , 04. 4 5,883 + 83 0 104 287 APRIL. , 04. 6 5,859 -24 0 130 106 , 04. 9 5,808 -51 0 133 82 , 04. 4 5,703 -105 0 171 66 , 02. 6 5,355 -348 182 217 51 , 02. 7 5,157 -198 3 215 20 SEPTEMBER...... , 01.86 5,040 -117 0 156 39 MTR YR 1966...... ,401.70 4,995 -45 0 106 61 ,401.87 5,043 +48 0 73 121 ,417.19 10,232 +5,189 0 66 5,255 +5,310 185 1,488 6,983 ,419.26 11,083 +851 0 113 964 0 118 329 ,420.79 11,739 +445 0 98 543 ,425.94 14,180 +2,441 0 129 2,570 MAY...... ,425.95 14,185 +5 575 255 835 JUNE...... 246 254 267 144 13,242 375 239 SEPTEMBER...... ,423.48 12,966 -276 0 201 -75 ,423.05 12,762 -204 0 245 41 ,423.10 12,786 24 0 160 184 DECEMBER...... ,423.50 12,976 + 90 0 87 277 ,423.58 13,014 38 0 113 151 FEBRUARY ...... ,423.75 13,094 80 0 100 180 246 APRI L ,423.84 13,137 -62 0 189 127 ,423.10 12,786 -351 138 242 29 289 80 ,421.55 12,076 -289 48 316 75 ,421.01 11,834 -242 0 286 44 ,420.42 11,578 -256 0 280 24 MTR YR 1968...... -1,388 398 2,448 1,458 0 161 57 ,420.07 11,426 -48 0 109 61 ,420.19 11,478 +52 0 89 141 -1,498 398 2,315 1,215 ,428.90 15,769 +4,291 . 0 128 4,419 ,449.19 29,756 +13,987 0 150 14,137 ,452.60 32,606 +2,850 0 278 3,128 ,453.00 32,950 +344 168 319 831 ,452.80 32,778 -172 229 380 437 ,452.37 32,408 -370 182 370 182 ,451.65 31,796 -612 118 644 150 ,450.79 31,076 -720 0 613 -107 SEPTEMBER...... ,450.52 30,852 -224 0 497 273 ,449.94 30, 00 -450 0 308 -142 ,449.57 30, 00 -300 0 191 -109 DECEMBER...... ,449.43 29, 50 -150 0 141 -9 ,449.44 29, 60 +10 0 188 198 ,449.71 30, 80 +220 0 211 431 ,450. 0 30, 70 +490 0 270 760 ,449. 6 30, 60 -610 335 339 64 ,449. 2 29, 20 -440 240 481 281 ,448. 0 29, 30 -590 265 456 131 ,447. 5 28, 10 -520 0 611 91 ,447. 2 28, 00 -410 0 580 170 ,446.50 27, 10 -490 0 521 31 -3,240 840 4,297 1,897 A INTERPOLATED. NOTE. FOR MONTHS WHEN INFLOW TO THE LAKE WAS SMALL AND OTHER QUANTITIES WERE LARGE, DISCORDANT FIGURES OF DIS CHARGE MAY APPEAR. THIS ARISES PRIMARILY FROM THE DIFFICULTY OF COMPUTING DISCHARGE AS A RESIDUAL OF SEVERAL LARGER QUANTITIES, WHICH ARE NOT SUSCEPTIBLE TO MEASUREMENT WITH A PRECISION NECESSARY TO PRODUCE A FINAL ANSWER WITHIN DESIRABLE LIMITS OF ACCURACY. SANTA MARGARITA RIVER BASIN 11043000 MURRIETA CREEK AT TEMECULA, CALIF. LOCATION.--Lat 33°28'47", long 117°08'35", in ula Grant, Riverside County, on right bank 0.4 mile upstream from mouth and 1.0 mile south of Temecula. DRAINAGE AREA.--222 sq mi. 1970. Monthly discharge only October 1924 to September 1930, pub- GAGE.--Water-stage recorder. Concrete low-water control since August 1962. Altitude of gage 970 ft (from topographic map). See WSP 1928 for history of changes prior to Dec. 17, 1938. AVERAGE DISCHARGE.--46 years, 9.24 cfs (6,690 -ft per year); median of yearly mean discharges, 2.3 cfs (1,700 acre-ft per year). EXTREMES.--Maximums and minim ms (discharge in cubic feet per second, gage height in t). Annual maximum di charge [*) and peak discharges above base (55 cfs), wat 1966-70 Date Time Disch. G.H. Date Time Disch. G.H. Date Time Disch. G.H. Nov. 23, 1965 0100 3,710 6.87 Jan. 25, 1967 0030 1,010 4.22 Jan. 25, 1969 1500 6,660 9.94 Dec. 10, 1965 1400 112 2.06 Feb. 6, 1969 0900 6,320 9.70 Dec. 29, 1965 2100 *5,020 7.78 Mar. 8, 1968 1500 46 1.50 Feb. 25, 1969 1500 *10,400 12.34 Dec. 6, 1966 2030 *1,510 4.86 Jan. 21, 1969 1300 530 3.35 Mar. 1, 1970 2030 *2,200 5.98 Mar. 5, 1970 0330 494 3.34 Annual minimum d DISCHARGE, IN CUBIC FEET PER SECOND. HATER YEAR OCTOBER 1965 TO SEPTEMBER 1966 DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 .20 .30 .60 4.8 .60 .40 -.40 .20 .20 .20 .20 .20 2 .20 3 .20 .70 .50 1.5 .60 .30 .30 .20 .20 .20 .20 .20 4 .20 .60 .40 1.3 5 .20 .40 .40 1.0 .50 .30 .30 .60 .20 .20 .20 .20 6 .20 .40 .30 .80 .80 .30 .30 .40 .20 .20 .20 .20 7 .20 .60 .30 .80 2.1 .30 .30 .30 .20 .20 .20 .20 8 .20 .40 .30 .70 1.2 .30 .30 .30 .20 .20 .20 .20 9 .20 .30 .60 .BO 10 .20 .60 .60 .60 .30 .30 .30 .20 .20 .20 .20 11 .20 .70 1 .60 .60 12 .20 .60 .3 .60 .50 .30 .30 .20 .20 .20 .20 .20 13 .20 .70 .4 .50 .50 .30 .30 .20 .20 .20 .20 .20 14 .20 .BO .6 .50 .40 .30 .30 .20 .20 .20 .20 .20 15 .30 .90 .7 .50 .40 .30 .30 .20 .20 .20 .20 .20 16 .40 1.3 .8 .50 .50 .30 .30 .20 .20 .20 .20 .20 17 .30 2.0 .8 .50 .50 .30 .30 .20 .20 .20 .20 .20 IB .20 l.C .B .50 .50 .30 .30 .20 .20 .20 .20 .20 19 .30 .50 .0 .50 .50 .30 .30 .20 .20 .20 .20 .20 20 .30 .30 .BO .50 .50 .30 .30 .20 .20 .30 .20 .20 21 .40 .20 .60 .50 .40 .30 .30 .20 .20 .30 .20 .20 22 .40 *47 .60 .50 .40 .30 .30 .50 .20 .20 .20 .20 23 .30 940 .60 .40 .40 .30 .30 .30 .20 .20 .20 .20 24 .30 8.4 .60 .40 .40 .30 .30 .30 .20 .20 .20 .20 25 .20 4.1 .60 .40 .40 1.9 .30 .40 .20 .20 .20 .20 26 .30 3.0 .60 27 .30 1.7 .60 .40 .40 1.2 .30 .30 .20 .20 .20 .20 28 .20 1.0 .60 .40 .40 .60 .20 .20 .20 .20 .20 .20 29 .30 .80 798 .40 -» ___ .40 .20 .20 .20 .20 .20 .20 30 .20 .60 295 1.0 .»__ .40 .20 .20 .20 .20 .20 .20 31 .20 9.7 1.0 "~ .40 .20 .20 .20 IB. 00 8.30 6.00 6.40 6.20 6.00 MEAN .25 47.3 38.6 .81 .59 .5B 1 30 .21 .20 .21 .20 .20 MAX .40 940 79B 4.B 2.1 5.7 .40 .60 .20 .30 .20 .20 MIN .20 .20 .30 .40 .40 .30 .20 .20 .20 .20 .20 .20 AC-FT IS 2.820 3,370 50 33 36 18 16 12 13 12 12 CAL YR 1965 TOTAL 2,817 .50 MEAN 7.72 MAX 940 MIN .10 AC-F7 5.590 5.410 SANTA MARGARITA RIVER BASIN 11043000 MURRIETA CREEK AT TEMECULA, CALIF.--CONTINUED DISCHARGE. IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1966 TO SEPTEMBER 1967 DAY OCT NOV DEC JUN JUL AUG SEP 1 .20 .20 .20 .30 .40 .30 .30 .40 .20 .20 .20 .20 2 .20 .20 .20 .30 .40 .30 .30 .40 .20 .20 .20 .20 3 .20 .20 .80 .30 .40 .30 .30 .40 .20 .20 .20 .20 4 .20 .20 .50 .30 .30 -40 .40 .40 .20 .20 .20 .20 5 .20 .20 22 .30 .30 .30 .70 .40 .20 .20 .20 .20 6 .20 .20 315 .30 .30 .30 .50 .40 .20 .20 .20 .20 7 .20 .30 133 .30 .30 .30 .40 .40 .20 .20 .20 .20 8 .20 .20 4.8 .30 9 .20 .20 2.4 20 .20 10 .20 .20 1.5 .40 .30 .30 .30 .40 .20 .20 20 .20 11 20 .20 12 20 .20 13 " 20 .20 .60 .60 .30 1.0 1.7 .30 .20 .20 .20 .20 14 20 .20 .50 .80 .30 3.6 .90 .30 .20 .20 .20 .20 15 20 .20 .40 .80 .30 1.5 .60 .30 '.20 .20 .20 .20 16 20 .20 .70 .80 .30 .80 .40 .30 .20 .20 .20 .20 17 20 .20 .40 .60 .30 .60 .40 .30 .20 .20 .20 .20 IB .30 .20 .20 .20 .20 19 .20 .20 .4C .60 .30 .40 .80 .30 .20 .20 .20 .20 20 .20 .20 .30 .60 .30 .40 .80 .20 .20 .20 .20 .20 21 .20 .20 .30 .60 .30 .40 .60 .20 .20 .20 .20 .20 22 .20 .20 .30 2.1 .30 .30 .80 .20 .20 .20 .20 .20 23 .20 .20 .30 35 .30 .30 1.0 .20 .20 .20 .20 .20 24 .20 .20 .30 70 .30 .30 .60 .20 .20 .20 .20 .20 25 .20 .20 .30 219 .40 .30 .50 .20 .20 .20 .20 .20 26 .20 .20 .20 .20 27 20 .20 .30 1.9 .40 .30 .40 .20 .20 .20 .20 .20 28 '; 20 .20 29 20 .20 .30 .80 .30 .40 .20 .20 .20 20 .20 30 20 .20 .30 .60 .30 .40 .30 .20 .20 20 .20 31 TOTAL MEAN. 20 .20 15. B 11.2 .32 .51 .72 .30 .20 .20 20 .20 MAX 20 .30 315 219 .40 3.6 3.0 .40 .20 .20 20 .20 "43 20 .20 689 IB 32 18 12 12 12 12 MTR YR 1967 TOTAL 929.00 DISCHARGE , IN CUBIC FEET PER SECOND, MATER YEAR OCTOBER 1967 TO SEPTEMBER 1968 DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL UJG SEP 1 .20 .20 .30 .20 .20 .30 .30 .20 .20 .20 20 2 3 20 .20 .30 .20 .20 .30 .20 .20 .20 .20 20 4 20 .20 .30 .20 .20 .30 .20 .20 .20 .20 20 5 20 .20 .30 .20 .20 .30 .20 .20 .20 .20 30 6 20 .20 .30 .20 .20 .30 .20 .20 .20 .20 30 7 20 .20 .30 .20 .20 .30 .20 .20 .20 .20 30 8 20 .20 .30 .20 .20 13 .20 .20 .20 .20 20 9 20 .20 .30 .20 .20 4.3 .20 .20 .20 .20 20 10 20 .20 .30 .20 .20 1.1 .20 .20 .20 .20 30 11 20 .20 .30 .20 .20 .40 .20 .20 .20 .20 30 12 20 .30 .20 .20 .20 .20 30 13 ' 20 .20 .30 .20 .20 .30 .20 .20 .20 .20 60 14 10 .20 .30 .20 .20 .20 .20 .20 .20 .20 80 15 10 .20 .30 .20 .20 .20 .20 .20 .20 .20 90 16 10 .20 .30 .20 .20 .20 .20 .20 .20 .20 17 10 .20 .40 .20 .20 .20 .20 .20 .20 .20 IB 10 .20 1.8 .20 .20 .20 .20 .20 .20 .30 19 10 .50 9.2 .20 .20 .20 .20 .20 .20 .30 20 10 .20 6.0 .20 .20 .20 .20 .20 .20 .30 21 10 .50 .80 .20 .20 .20 .20 .20 .20 .30 22 10 .20 .30 .20 .20 .20 .20 .20 .20 .30 23 10 .20 .20 .20 .20 .20 .20 .20 .20 .30 24 .20 .30 25 .10 .20 .20 .20 .20 .20 .20 .20 .20 .10 26 .10 .20 .20 .20 .20 .10 27 .10 .20 .20 .20 .20 .20 .20 .20 .20 .20 28 .10 .20 .20 .30 .20 .20 .20 20 .20 .30 29 .10 .20 .20 .20 .20 .20 .20 .20 .20 .20 30 .10 .30 .20 .20 .20 .20 .20 .20 .20 31 .10 - .20 .20 .20 .20 .20 TOTAL 4.40 6.70 25.10 6.30 5. 80 2S.50 6.30 6.20 6.00 6.80 36 40 6 . MEAN .14 .22 .81 .20 .20 .82 .21 .20 .20 .22 1 17 20 MAX .20 .50 9.2 .30 .20 13 .40 .20 .20 .30 i.4 MIN .10 .20 .20 .20 .20 .20 .20 .20 .20 .10 20 AC-FT 8.7 13 50 13 12 51 13 12 12 13 72 121 CAL YR 1967 TOTAL 463.80 MEAN 1.27 MAX 219 MIN .10 AC-FT 920 HTR YR 1968 TOTAL 196.60 SANTA MARGARITA RIVER BASIN 11043000 MURRIETA CREEK AT TEMECULA, CALIF.--CONTINUED DISCHARGE, IN CUBIC FEET PER SECOND, HATER YEAR OCTOBER 1968 TO SEPTEMBER 1969 DAY OCT NOV DEC JUN JUL AUG SE 1 2.2 1.7 1.5 1.3 2.0 38 .40 .50 .41 .10 .08 .1 2 2.2 1.7 1.3 1.2 2.0 29 .40 .50 .23 .10 .08 .1 3 2.2 1.7 1.1 1.1 2.0 24 .50 .70 .20 .10 .08 .1 4 2.2 1.6 1.3 1.1 1.1 23 .50 .40 .46 .14 .08 .1 5 2.1 1.7 1.2 1.1 75 22 .50 .40 .55 .12 .08 .1 6 2.0 1.8 1.2 l.l 1,380 21 .60 .40 .29 .14 .10 . 7 2.0 1.8 1.2 1.0 147 21 .50 .40 .16 .14 .08 . 8 .0 l.B 1.2 1.0 24 20 .40 .30 .10 .14 .08 . 9 .9 1.8 1.5 1.0 7.6 20 .40 .30 .06 .14 .08 , 10 .8 l.B 1.8 1.0 3.0 17 .40 .30 .02 .14 .08 11 .8 1.9 1.8 1.0 1.1 15 .40 .30 .04 .14 .08 . 12 .8 1.9 1.8 1.1 .60 15 .50 .30 .04 .14 .08 , 13 .8 1.9 1.7 1.1 .50 12 .40 .30 .06 .14 .08 . 14 .B 1.9 1.7 1.7 .40 1 .40 .30 .08 .14 .08 15 .8 1.9 1.7 .B9 .40 .5 .40 .30 .10 .14 .10 16 .7 l.B 1.7 .89 .40 .5 .50 .20 .10 .14 .10 . 17 .7 l.B 1.7 .89 .40 .8 .50 .20 .20 .12 .10 IB .7 1.8 1.7 .92 7.9 .5 .50 .20 .46 .12- .10 19 .8 1.7 1.5 .95 45 .2 .40 .20 .38 .14 .10 20 .8 1.7 .10 21 .8 1.7 1.0 85 7.6 .9 .40 .12 .50 .14 .10 22 .8 1.7 1.0 3.3 206 .8 .50 .12 .41 .14 .10 23 .B 1.7 1.0 .21 !i 24 .8 1.7 1.0 9.6 25 .8 1.7 1.0 2, 530 7,050 .1 .70 .20 .23 .12 .10 .2 26 .B 1.5 1.1 520 1,150 .82 .60 .90 .12 .06 .10 .1 27 .8 1.2 1.0 119 164 .80 .46 .50 .35 .06 .10 .1 28 .8 1.4 1.0 8.4 68 .70 .46 .32 .23 .06 .1C .1 29 " 1.4 1.0 3.3 .60 .46 .32 .12 .06 .10 .1 30 * 1.4 1.0 2.6 .50 .50 .32 .12 .06 .10 .1 31 1.1 2.2 .40 .55 .06 .12 2.86 4.6 MEAN 1.87 .1 HAX 2.2 1.9 1.8 2,530 7,050 38 .70 .90 -.60 .14 .12 .2 MIN 1.7 1.2 .90 .21 .40 .40 .40 .12 .02 .06 .08 .1 AC-FT 115 101 81 6,560 33,550 672 28 20 14 7.3 5.7 9. 615 DISCHARGE, IN CUBIC FEET PER SECOND , WATER YEAR OCTOBER 1969 TO SEPTEMBER 1970 DAY JUN JUL AUG SE 1 .14 .12 .10 .08 .10 414 .14 .12 .16 .12 .06 .1 2 .16 .12 .10 .06 .10 689 .14 .12 .14 .12 .06 .1 3 .16 .08 .10 .06 .10 36 .14 .14 .14 .12 .06 .1 4 .12 .08 .1 5 .16 .04 .10 .06 .08 139 .14 .16 .12 .12 .08 .1 6 .16 .10 .12 .04 .10 9.0 .14 .16 .10 .12 .08 .1 7 .16 .08 .12 .04 .10 1.8 .14 .18 .12 .12 .08 .1 8 .16 .04 .12 .04 .10 .89 .14 .20 .12 .12 .08 .1 9 .16 .04 .12 .06 .10 .65 .14 .23 .12 .12 .08 .1 10 11 .16 .02 .12 .08 9.0 .55 .14 .29 .12 .12 .08 .1 12 .14 .02 .12 .10 .38 .38 .14 .32 .12 .12 .OB .1 13 .14 .02 .12 :OB .16 .32 .14 .32 .12 .12 .08 .1 14 .14 .04 .12 .OB .12 .26 .14 .32 .12 .10 .08 .1 15 .14 .08 .12 .10 .10 .23 .14 .29 .12 .10 .08 .1 16 .10 .08 .1 17 .14 .02 .12 .10 .10 .18 .14 .26 .10 .10 .10 .1 .14 .10 .1 19 .14 .02 .10 .10 .10 .14 .16 .23 .12 .10 .12 .1 20 .14 .04 .10 .10 .10 .16 .16 .20 .12 .10 .12 .1 21 .14 .04 .10 .08 .10 .35 .16 .20 .12 ,10 .12 .1 22 .14 .04 .10 .08 .12 .16 .16 .IB .12 .10 .12 .1 23 .14 .04 .10 .08 .12 .16 .23 .18 .12 .10 .12 .1 24 .14 .04 .10 .08 .14 .16 .41 .18 .12 .10 .12 .1 25 .14 .06 .10 .08 .14 .18 .70 .16 .12 .10 .12 .1 26 .14 .06 .10 .08 .16 .23 .41 .16 .18 .08 .12 .1 27 .14 .06 .10 .08 .16 .23 .18 .16 .18 .08 .12 .1 28 .14 .08 .10 .08 23 .20 .16 .16 .16 .08 .12 .1 29 .14 .08 .10 .08 _.._ _ .20 .14 .16 .16 .08 .12 .1 30 .12 .08 .10 .08 .18 .13 .16 .14 .08 .12 .1 31 .12 ___ .10 .08 .18 .16 .. .06 .12 OTAL EAN .15 .055 .11 .078 1.29 42.0 .18 .20 .13 .10 .096 .1 AX .16 .12 .12 .12 23 689 .70 .32 .18 .12 .12 .1 IN .12 .02 .10 .04 .08 .14 .13 .12 .10 .06 .06 .1 C-FT 8.9 3.3 6.7 4.8 72 2,590 11 13 7.7 6.4 5.9 7. CAL YR 1969 TOTAL 20,610.48 MEAN 56.5 HAX 7,050 HIN .02 AC-FT 40,880 SANTA MARGARITA RIVER BASIN 11044000 SANTA MARGARITA RIVER NEAR TEMECULA, CALIF. LOCATION.--Lat 33°28'26", long 117°08'29", in Temecula Grant, Riverside County, on left bank at uppe DRAINAGE AREA.--588 sq mi. PERIOD OF RECORD.--January 1923 to September 1970. Prior to October 1952, published as Teme a Creek at Rail- road Canyon, near Temecula. order. Altitu of gage is 950 ft (from topographic map). Pri 3, 1966, at te -ft p EXTREMES.--Maximums and minimums (discharge in ci 1966-70 are contained in the following table: Minimum Wtr yr Date scharge G.H. Date 1966 Dec. 29, 1965 5,040 8.00 Aug. 18-22, 1966 1967 Dec. 6, 1966 3,000 7.78 Oct. 14, 17, 1966 1968 Mar. 8, 1968 45 2.50 June 20, Aug. 1-8, 1968 1969 Feb. 25, 1969 14,600 15.32 Sept. 2, 5-12, 1969 1970 Mar. 2, 1970 2,100 6.77 May 23, 24, 1970 REMARKS.--Records good. Flow partly regulated since November 1948 by Vail Lake (see station 11042500). Pumping above station for irrigation. REVISIONS (WATER YEARS).--WSP 981: 1927(M). WSP 1928: Drainage area. DISCHARGE. IN CUBIC FEET PER SECOND, MATER YEAR OCTOBER 1965 TO SEPTEMBER 1966 DAY OCT NOV SEP 1 3.0 2.4 3.8 19 4.4 3.7 3.5 2.8 2.2 2.4 2.4 2.3 2 3.0 2.4 3.5 11 3 2.1 5 2.4 2.6 3.2 5.0 4.2 3.5 3.0 4.2 3.2 2.3 2.2 2.1 6 2.1 8 9 2.3 2.3 14 4.0 4.2 3.8 2.8 2.6 3.2 2.2 2.3 2.2 10 2.3 2.6 38 3.8 11 2.3 2.7 17 3.8 3.8 3.8 2.8 2.3 2.3 2.1 2.2 2.2 12 13 15 16 2.4 4.0 11 3.8 3.5 3.8 2.7 1.5 2.4 2.4 2.1 2.0 17 2.3 4.8 10 3.8 3.7 3.8 2.8 .60 2.3 2.2 1.6 2.0 18 2.1 .30 2.0 20 21 22 3.2 330 23 3.0 1,150 24 2.6 25 3.8 3.5 3.8 4.4 3.2 2.3 2.2 2.3 1.8 2.0 26 2.3 4.4 3.8 3.5 3.7 17 3.3 2.6 2.3 2.2 2.6 2.0 27 28 29 2.4 4.4 750 3.3 2.1 30 2.4 4.2 318 5.1 62.1 MAX MIN 2.0 2.0 .30 2.0 2,550 290 227 271 182 152 145 144 117 123 CAL YR 1965 TOTAL 3,873.00 MEAN 10.6 MAX 1,150 MIN 1.6 AC-FT 7,680 SANTA MARGARITA RIVER BASIN 11044000 SANTA MARGARITA RIVER NEAR TEMECULA, CALIF.--CONTINUED DISCHARGEi IN CUBIC FEET PER SECOND, HATER YEAR OCTOBER 1966 TO SEPTEMBER 1967 OCT NQV DEC JAN FEB MAR APR MAY JUN JUL 5 2.4 2.0 51 4.2 5.1 4.4 5.4 4.2 3.6 2.B 2.6 2.6 6 2.4 2.0 396 4.1 5.1 4.2 4.2 4.2 3.6 2.8 2.4 2.6 7 2.2 3.1 139 4.1 5.0 4.2 4.0 4.2 3.6 2.8 2.6 2.6 8 2.4 2.6 12 4.0 5.0 4.2 4.0 4.2 3.6 2.8 2.6 2.6 9 2.3 2.4 6.5 4*0 4.9 4.C 4.0 4.2 3.6 2*6 2.6 2.6 11 2.2 2.1 5.6 3.9 4.8 4.4 22 4.4 3.6 2.7 2.6 2.6 12 2.2 2.1 5.3 3.8 4.8 4.0 20 4.2 3.6 2.7 2.6 2.6 13 2.1 2.1 5.3 3.8 4.7 7.1 15 4.2 3.6 2.7 2.6 2.6 14 1.6 2.1 5.1 3.7 4.7 8.8 10 4.2 3.6 2.7 2.4 2.6 16 1.8 2.1 4.9 3.6 4.5 4.8 5.0 4.2 3.6 2.7 2.6 2.6 17 1.6 2.1 4.9 3.6 4.4 4.0 5.5 4.2 3.8 2.7 2.6 2.6 18 1.8 2.1 4.6 3.6 4.3 4.0 6.8 4.2 3.8 2.7 2.6 2*8 19 1.8 2.1 4.4 3.6 4.2 3.6 7.0 4.4 3.8 2.7 2.6 3.4 20 2.0 2.2 4.2 3.6 4.1 3.6 5.B 4.6 3.6 2.7 2.6 3.2 21 2.1 2.2 4.2 3.6 4.0 4.0 5.0 4.6 3.6 2.7 2.6 3.0 22 2.1 2.2 4.2 6.6 3.9 4.2 6.4 4.6 3.4 2.7 2.6 3.2 23 2.0 2.2 24 2.0 2.2 25 2.0 2.4 .2 234 26 1.8 2.4 Z7 1.8 2.6 .2 10 3.6 28 1.8 2.6 4.2 9.0 3.6 5.8 4.9 3.8 3.0 2.6 29 1.8 2.6 4.2 8.0 ~ - 6.9 4.6 4.0 3.0 2.6 30 1.8 2.6 4.2 7.0 5.6 4.4 4.0 3.0 2.6 31 1.8 4.2 6.5 4,6 4.0 2.6 TOTAL 63.7 66.7 724.7 495.7 127.9 146.4 204.0 132.2 104.8 84.6 80.2 82.5 MEAN 2.05 2.22 23.4 16.0 4.57 4.72 6.80 4.26 3.49 2.73 2.59 2.75 PAX 2.9 3.1 396 234 6.0 8.8 22 4.6 3.8 3.0 2.6 3.4 WIN 1.6 1.8 2.8 3.6 3.6 3.6 3.8 3.6 3.0 2.6 2.4 2.6 AC-FT 126 132 1,440 983 254 290 405 262 208 168 159 164 NOTE. NO GAGE-HEIGHT RECORD DEC. 8 TO JAN. 18, JAN 27 TO FEB. 28.330 8.9 . 24 31 6.3 ^ 25 21 6.1 26 16 5.9 . 27 10 5.7 . 28 6.0 5.5 f 29 4.5 6.B . , . 30 3.9 87 . . 31 22 20 __ -