Santa Fe Dam and Flood- Control Reservoir, Los Angeles County Drainage Area, California

| ,/t't t ;". .t'' .1. ?'b7-s4 m f / u;"i ,?UL/r*-; LADM NO.I t30-2-20

LOSANGELES COUNTY DRAINAGE AREA, CALIFORNIA

OPERATIONAND MAINTENANCE MANUAL FOR SANTAFE DAM SANGABRIEL RIVER IMPROVEMENT

U.S. ARMYENGINEER DISTRICT, LOSANGELES CORPSOF ENGINEERS JULY r963 li' U, S, AltliY mGWm QISTRICT, US APaGELES, AUGUST 1963

FOREWORD

1, This r0aaua.l prescribes standard procedures for the operation and maintenance of tine federally constructed Santa Fe Dam and Flood- Control Reservoir, Los Angeles County Drainage Area, California. All previously issued operation and maintenance manuals for this dam are superseded by this mnual.

2, The Dams Section, Design Branch, Engineering Mvision, 5.8 responsible for the preparation of this manual and for keeping this mmal up-to-date, Suggested revisions should be f oxwarded through channels, to that section. FOR THZ DISTRICT EXGINEJB:

$ELTON B. BILES Major, Corps of Engineera Assistant District Engineer TABLE

SECTION 1 .INTRODUCTION Authwi~ation...... ~.~~~.~~~~~~.~. PTo~~c~l~cation~..~ ...... Foundation of Santa Fe Dm site...... Description of project...... a. Principal structures and ewpmenf...... b. ~rdrogmphfcinsteLIlatio1~8 .re.OOe**aeee*eeeoeea C. Communication facflities...... Protection provided...... Basic design reports ...... Construction histmy ...... Pertinent dab...... SECTION 2 .Gm PROCEDURES ApprOP.ed reguhtim...... *.. Purpose of ~~anual...~...... Defmtiorjg ...... Reference drawings and maLs...... Functions of the Construction Division...... a.e... Functions of the Engbeering Didsion...... Functions of the Real Estab Division ...... Functfons of the U.S. GeologicrrL Smvey ...... Inspections and maintgnanoe...... Duties of the dam tender...... Routine test operations ......

Flood control bash...... Access roads...... * ...... I...... o.. Access stMays...... Fejl~e~ea0emo.e.e.. e*a*ee**eeee****ee*e**ao*m****e********** Inspections and msintenance...... a. Emt)~~1~s.c.c*.**.*******************.**********.** b . Conemte and rgpap...... ~ .. Emb~ntdrd *~..~~~~~~.~.~~~~.~~~~~~~~~~..~~~~~~ d. Access roads and berms...... 8. Fences ...... f . BwOtJ33.Lg w ...... g. IIamrdous obstructions...... SECTION 4 .OUTLET STftUCTURES . Gemd....e.e.e...... oe.....e~~~...e...... ~.. Approach che1.oo~~~~~~.~~~o~eer.~~~~~~.~~~e~~~e~**~~* 0. Intake structure...... Gate ~wers..~...... O...... ~ Access gdllery...... Float recorder intake well4...... Float recorder housg ...... Gated outlets...... Outlet works stilling bas$n...... Diversion intake ...... Serv;Lce buflding ...... Inspection and -we ...... a* CmeIs.ooo...... be Weep holes ...... SECTIOX 5 .SPIIif-HAY General...... Approach channeI ...... Control section...e...... O...... e.a....~~ Spillway stf3Xng basin...... Spillway &t C-1 ...... Counterforb and cantilever Ws...... Inspections and main%emce...... SECTION 6 .GAT325 AND HOISTS Gates ...... e...... Reservoir Regulation Bbmd...... Hoist cylinders and appurtenances...... Electric motors and acoessories ...... Inspections. tests. and nr~bbnance...... a . Genera...... e...... b . Ga-s ...... o...... O...... ~...... ~~ C. Hoists and errs...... d . Pa5ntiX1&...... e...... SECTION 7 .ELEeTRICaL FAC1:LM'IB Electrical supply and semrices ...... oo. Staadby power unft ...... ~ Switchboard...... Light fixtures ...... Convenience outlets...... ~~~ Ground ssire ...... o..O...... Wansfomera ...... ELECTRICAL FACILITIES.. Continued Inspections. tests. aPld maintenance ...... a. General ...... b. Electrical supply and service ...... ~ C. S%andby power unit .engiares ...... d. Stsurdby power unit = gene~atw...... e. Switchboard and lighting fmmes...... f. Trmferr&ng phtto standby sdce...... g . Transfeming plant to =son Company service ...... h. Shutting down plant durAng emergencies...... SECTION 8 .HYMiWHIC INSTUTIOMS

SWf gages ..e..emae.r...aoo.e..o.e...e.ae.....aee...*.... Reservoir water-stage recmdess ...... O...... Gate position recarders...... OO...... Gate positbn indicators...... 0U.eflow gaging station...... Standard rain [email protected]~.~..~...... Automatic ra3.11gam...... S&bentation mmnts...... Inspection. serdebg. &knan~e~ and reporting ...... ab By the chu tend^..^...... ~...~...... be By .tb Ue S. Geob~kjscdPSw ...... C. By the Engineering Di81aion...... e...... FACILITIES

tenderas houmeeeeacemeee..eeseoe.amcrc.oce.e.cooo.e o. Electrh~alserv%ee and e~pdeeeQQ...... ~...... Inspectioma. ~eot~f~...... and ~~~~cQ.....Q...... m...... b . ?at- ~d~ede~0~8bt~~~~.~~~...... c. 'VePlic1es and e@pm% ...... d. T.and.Q~apw....*...... O...... e...... 8. MseeUBTaeo~...... TABLE 33' CONTE3TS-4ontItnuedt

SECTIGN U - WAm SUPPLY AND S3JAGE

Tdate~-s~ppJ.Y~~~~eeaoeceeooeeaoae~.e.e~ee~so~eooeo~.ee~.~ Sewage system,,, ,...... O.....eO...o...... , Inspections ancl ~intenan~e,...,...... ~...... ,......

Service buil~g...... o..oe...... Gate c~ere,,.,,,,.ODe.,~~.~~BOe..~O~aO...e.~.e.e.~..o..o Dam tender1s house,. ., . . , ...... Inspections, tests, and maintenance...,...... ,...... a. Fire ext~shePseoO.O.O.Oe.~..~e~...... ~o..~~..~... b. Fire hoses and bibbs...... C. Fire prevention, ...... ,...... Accident prevention,.....,...... ,..,...... SiXTIOE? 13 - RESERVOIR REGULATION XND FLOOD E3BRCEXCY RaU-S

amITS

Project Location Plan of Flood Contfnol Basin Inspeetion Check Us% Test-Opera%ion Reporbs Deleted Drawings - "As Constm~ted"at~d Index (unattached) Sef erence lianuals (unattached) Instructions for Operation of Service Gates (revised) Snshction Mual - &%in Engine General Saf ebj Requirements, Bl 385-1-1 Corps of Engineers, U. S, Array (~nattetched) QPERATIQN AND MAINTENANCE YrANUAL

FOR

SAMTA FE DAIvi AND FEOOD-CONTHOL RESERVOIR

LOS ANGELES COUNTY, CALIFORNIA

SECTION 1 - INTWDUCTSQN

1.01. Authorizcation. The Flood Control Act of 22 June 1936, as amended 28 June 1938, authoriaed a flood-control plan of improvement for protection of rnstropolitan areas in Los Angeles County; Santa Fe Ilam and Flood-Control Rewrvoir is part of this authorized plan; it was constructed by the Corps of Engineers, Los Angeles Mstrict, between August 194l and January 1949. 1.02. Project location. me Santa Fe flood control basin is located on the outwash area of the San Gabriel Mver in the eastern part of Los Angeles County, Cabifornia, about 5 miles downstream from the mouth of San Gabriel canyon, about 15 miles northeasterly from Los Angeles and 3 miles southwesterly from the town of Armsa. It is bounded on the north by the Atchison, Topelm and Santa Fe Raflway, on the west by the suburban development of Duarte, and on the east by the industrial plants, homes, highways and orchards of the area between Azuser. and Baldwin Park. The location of the project is shown in exhibit B and drawing file, No. 483/2, exhibit F.

1.03. Foundation of Santa Fe Dam site. The formation at this site is Recent alluvium consisting primarily of gravel and boulders up to-4 feet in diameter, together with considerable quantities of loose sand and very little clay or silt. The records of deep water wells drilled in the vicinity indfcate that this gravel and boulder type of materid. extends from the surface to depths of several hundred feet. The majority of these records shows the formation to be loose and unconeolidated although layere of "tight sand" and "cemented gmve1,fl lying at intervals between 100 feet and 400 feet deep, have been repoP%gdl, 10Bescri~tion sf project, a. Princimal structures and equiment. Principal structures and equipment include (1) an earthfill dam, approximately 23 800 feet long wfth a maximum height of 92 feet above streambed; (2j an outlet works, consisting of an approach channel, an intake structure, a float recorder house, 16 gated outlet conduits, hoisting equipment, a standby power unit, a stilling basin, a downstream channel, and a service building; (3) er spillway, structure, consisting of an approach chernnel, an overflow ogee spillway, a stilling basin and an exit channel, (see drawing,. file NO. 439/2, exhibit F, and sections 3, 4 and 5 of this manual),

b, Hydrographic installations. Hydrographic installations include (1) two reservoir water stage recorders, (2T-szxteen gate opening recorders, (3) an outflow gaging station, (4) two standard glass-tube rain gages, (5) a recording rain gage, and (6) ds- cellaneous staff gages, indicators and sedimentation monuments, (see drawing, file No. 43$/2, exhibit F and also section 8, titled flHydrographic Installations, ") c, Codeation facilitf es. Communication facilities include a radio transmitting and receiving station and telephones in the service building and in the dam tender's house. (see drawings, file Nos. 4.40146 to &0/51, inclusive, exh5bit F and also section 9, titled fiCommunication FaciUties, n,

1.65, Protection ~rovided. The %nta Fe flood control basin is an important unit in the flood-control plan for the LQS Angeles County drainage area. It provides protection for the Sm Gabriel Valley and the coastal plain area adjacent to the lower course of the San Gabriel River.

1,06, &sic dssian rewrts, A Hydrology Report entitled I1iiydrol- ogy - San Gabriel River above SaYlta Fe Flood Control Basintt was made 7 BecembtPr 1940, An NAndysis of Design for the Santa Fe bm,fl volumes I and 11, was submitted April 19a. An addendum "8" was made August 1942 and addendum "Btl was made Yay 19&, An I1AnaPysis of Design of 6' x 9° Slide Gates for Sank Fe Dam" was compiled in June 1947. 1.07. Constmction history, The project was accomplished under several contracts, copies of wMch are on file in the office of the District Engineer, Los hgsles District, Corps of Engineers, Lns Angeles, California. Pertinent data on the principal contracts are as follows : a, Dm and a~mtenantwork, Contractor8 Farrison-Knudsen Company Contract No.: W.-509-Engm 1574 Work startedt 8 August 19W Work completed: 23 September 1943 b, ColmpLetion of emaent and s~illway. Contractor: Guerin Brothers Contract No,: W-04-353-Ibg. 1849 Work startedt 24 June 19& Work completed: 14 February 1947 c. Channels and levees. Contractor t Kacco Corporation Contract No.: W-04-353-Eng. 1981 Work started: 1 Ihy 1947 Work completed: 24 Uecember 1947 d. Slide pates and a~~urtenances. Contractor: Guy F. Atkinson Company Contract No.: W-04-353-Eng. 2115 Work started: 23 September 1947 Work completed: 26 January 1949

8OTEr The construction of Sank Fe Dam was curtailed in 19A3, prior to its completion by order of the Chief of Engineers at the recommendation of the riar Production Board, and was resuslled in 1946. 1.08, Pertinent data.

Drainane area, Sq. miles Flood control basin. Area at spillway crest (elevation 496) Acres Capacity at spillway crest Acre-f eet Area at maxLmnun water surface (elevation 508) Acres Capacity at maximum water surface Acre-fee t Area at top of dam (elevation 513) Acres Capacity at top of dam Acre-feet

&!A* Type Earth Top elevation Feet, m.s.1, 513 Height above streambed Feet 92 Length at crest Feet 23,800 S?3i llway. Typs Crest elevation Feet, m.s.1, bngth Feet Idaximum water surface elevation Feet, m,s.l. Surcharge on crest (meximum water surface) Feet Discbarge (maximum wter surface) c.f.s. Outlets, Gates - type Slide Gates Gates - number 16 Gates - si~e Feet 6x9 Gates - enLreunce invert elevation Feet, m.s.1. 421 Conduits - nwber 16 Conduits - size Feet 7e33 x 7.33 C~nduits- lmgth Feet I%ximum capacity at spillway crest c,f.s. Regulated discharge at spillway crest c.f.s.' Ultimate renulation (revised reservoir design floodl. Length of design storm Days Inflow of storm Acre-f eet Inflow peak c,f .so Ou%flow peak c.f.8. Reduction in peak c.f .so SECTION 2 - GEhERAL PBOCEDURES

2.01. Approved redations8 a. Project Operation Ibintenance Guide EI4 1130-2-303, 20 3une 1960.

b. Emergency Flood Control,Activities, LAD14 500-1-1, Annex A Part 1 - U. S. Army Engineer District, Corps of Engineers, 110sAngeles. c, Fire-fighters Training Ifanual.

d. General Safety Requirements, EM 385-1-1, 13 ikrch 1958. e. Motor Vehicle Inspection - Technical l*ianu&l18-660-1 Operatorls Yaintenance Instructions and Procedures for Administrative Xotor Vehicles, 16 Aprfl 1957.

f. Mre -vention Code M.B.F.U.

g. National Electrical Code, N.F.P.B. h. Reservoir Regulation I4amm.l for Santa Fe Dam. (see paragraph 6.02).

i. Chemical, Biological, Radiological Ihnitoring P Responsibilities - See Annex D, Civil Defense, Fart 11, EM 500-1-1 (to be published). * 2.02. FUmose of manual. The purpose of this manual is to supply the dam tender and the district operating personnel with instructions for proper inspection, operation, and maintenance of the Santa Fe Dam and flood control reservoir. These instructions will.insure the continuous maintenance of structures and equipment and their operation in such a manner and at such times as will obtain optimurn benefits. Speciali~edterns wed in this manual are "Engineering Mvisionw, "Construction Divisionn and "Real Estate Division" refer to organiziations within the U. 8. Amy Engineer District, Los Angeles. (b) tlFlood season" refers to the period from 15 October to 15 April when most past floods have occurred. (c) ttEmergency Flood Conditionn refers to periods during which the reservoir water surface rises above the crest of the spillway at elevation 4%. All elevations refer to mean sea level datum. -2,04, Reference drawings and muds, Pratsing file numbers in this manual refer to *as constmcted~.d.ratPrPngs;half-size reduc- tions are included as exhibit F and separately bound, Drawings, manuals, and instructions of rmufacturerst equipment are listed in exhibit G and are on file in the district office and at the project,

2,05, F'Lll?ctisns of the Conatnuction Division, Operation and maintenance and all inspections are under the supervision of the constmction division, with %he exception of those for hydrologic insUationer (see section $1, The general duties include the following :

a, Keg perasme% shall be trained in ordsr that regular inspection, operation, and xaintemce work all be performed effi- ciently and to inwe that unexpected problems relaud to flood control my be handled in an expeckitisus and orderly manner, The men shall become feuniliar with the provisione of this manual, the construction specif5cations md the constmctedv~drawings.

b, There. shall be DO encroachment OF trespass which will adve~selyaffect the efficient opka%ionand maintenance of the project, The Chief, Constmctiow L&vision, ~kialltherefore cause notices to be pated at conspicusus places dong the project right-of- wary dh?eo%iraggarblie attontfsn $0 this mesquh-ement and la@ shd.1 arrange for the proetsaution of offsrndere and mpo* csotione taken to the Distriet bgimgtr. AU treepeeee or violatione of outgrants tiis- covenad by oon~tsu~%iondivi~ion ps~omel be reported to the ReaL E~ta%csUe@iono

c. The CmsWct%onB%vSeblm review plans and furnishes comments to the ba% Estate Mvirsisn on requests from publtc or PEL- vate intere~tafor 001hbaurn ~f land aPId =tor meas, and per- forms inspectione during aonetru~tionto assure compliance with approved plans dm The Chief, Construction Division, shall establish a file of all reports and meorde concez-ning the maintenance and operation of the project works,

a, The Engineering 1XvSsion perfom engineering resews of csll plans and furnishes engineering comments to the Real Estate Division an mqueosts from public or private interests for collateral Use of ~3'0j~ctlandso b, It conducts periodical project, These surveys serve a condition of the various parts of the project and (2) to see if all the repairs and improvements have been carried out that were previously recommended,

c. It shall also train key personnel in the_-,peration of service gates, hoists, standby power units and codcation facilities and in the opmtion and maintenance of hydrologic, installations and f lood-fighting equipment. They shall become familiar with this manual, the Annex A to EM 500-1-1, the Reservoir Regulations Pianual, which is revised periodically, and the "as".. constructedfl drawings,

d. It prepares and executes all flood-fighting plans and through the Hydrology & Reservoir Regulation Secti'on directs the dam tender or his assigned alternate in the operation of the gates. It keeps records of reservoir stages, inflow to th* reservoir, releases through the outlet structures and spi.llway overflow,

e, The Engineering Division is responsible for the inspection, servicing, and maintenance of all hy&ologic installations. Their routine inspections are done by the dam tender.

f, The supervfsion and maintenance of radio installations is also a ftmction of the engineering division, 2.0'7. Functions of the Real Estate Division,

a. The Real Estate Division processes all. permits, licenses, easements, or leases through appropriata channels and fadministers completed instruments.

be It insures compliance through periodic inspections and acts upon dl vi~lationsof outgrants, em It furtxlshes to the Construction MvisPon, copies of ail perndts, licenses, easements or leases.

2.08, Furncti~nsof the U, S. Geological survey. By agreement between the Corps of Engineers and the U. S. G. S. the latter will service the outflow gaging station, make discharge measurements and compile and publish the ~utflowrecords in the U. S. Geological Water supply Papere. 2.09. fnsuect5one and nudntenanee. a, Bs the Conetmetlon and Enafneerin~Divisions. PerAodic inspection8 ahall be made by the Chief, Construction Mvision, or his authorized representatives in cooperation with the Chief, Engineering Mvision, or his authorized representative, as required, in order to determine maintenance measures necessary to insure ser- viceability of the works in the of flood, Such inspections shall be made immediately fsllowlng each major highwater period, and at intervals 2-3 not to exceed 6 months and at such times as my be necessary. Immediate steps ahall be Wen to comect dangerous conditions disclosed by such inspections and regular maintenance repair meammer sha31 be accomplished during the appropriate season as scheduled by the chief of the division. AU. repairs shall be made in accordance with s engineering prac%ice, to line and grade and in accordance with details shown on "as ~onstructed~~drawings, exhibit F.

be BY the daa tender, Periodic rou%%neinspections of structures and equipment and of the project area shall be made by the dam tender or his assishts to determine maintenance measures that are required, These inspections during the non-flood season shall be made at in'cerrals of not more than 90 days; during the flood season, beginning 15 October, at intemals of not more than 30 days; also immediately following each flood, 1Jbre frequent inspections shall be made if required for the safety and efficient maintenance of some features of the project. During each inspection, items requiring maintenance shall be checked and descrfbed on the inspection check lists included as exhibit C, After each inspection, one set of the inspection lists shall be promptly submitted to the Chief, Ydntenance Section, who will route it to the Design Branch, Engineer- ing Mvfsion; one set shall be submitted to the Chief, Operations Branch; and one set hall be retained by .the dm tender, Faintenance shall be performed by the dam tender if feasible. If maintenance requires hiring additional labor or equipment, the dam tender shall rauMt to the Chief, Operations Branch, a list of proposed maintenance measures, Nomoal min-tewe shall be made without delay during the non-flood season.

c a . All first aid activities in connection with flood emerryeolcies are under the supervision of the Chief, Safety Bmch, At the beginrdng of each flood season and peri&cally thereafter, as mqpired, he will inspect the project, see that proper equipment is at hand, and see that the dam tender and his assistants me adequately inshcbd in first aid procedures and safety. Appropriate equipment includes (but is not limited to) standard first-aid lefts and such items as blankets, stretchers, safety belts, life lines and kapok vests. Grappling irons are provided from the base yard and gas detectors and oxygen deficiency lamps (Wolf lamps) are provided by the bs Angeles District office* (see Flood Emergency YanuaL, paragmfi 6,06), 2.10, Duties of the dram tenderr, The dam tender or his alternate is required to perform the following dutisso

a, Be present at the tiam when rainfall or sunoff is OCCUT&~*

b, See that all equipment at the project, including recording and indicating gages, gate mschebnism, power units, radio, etc., is 4n operating condition, c, Perfom routine test operations,

d, Operate the gates in accordance with instructions from the Hydrology & Reservoir Regulations Section, e, Follow the fixed gate operation schedule posted in the control house in the absence of communications with the Hydrology & Resemir Regulations Section or in the absence of a representative from that group, f, Service all gages and recorders, wind the clocks, install new records paper, etc,

8;. Guard the project against vandalism, sabotage and fjtres,

h, Guard against unsafe conditions in the project area, i. Report on trespassing and encroachment of right-of-way,

j. Naintain routine records, including water surface elevations, outflow gage heights, precipitation amounts, gate openings and logs on prescribed form.

k, Keep the premises clean, painted, and in good rep*,

2,U. The dam tender or his alternate shall test- adelectrical facilities in the control house every 30 dap-and the standby power unit every 15 days, Test opmathon reports (exhibit D) shall be completed in triplicate eLfter each test, One copy shall be promptly submitted to the Chief, Engineering Division, one copy to the Chief, Construction Division, and one oopy shall be retafied by the dam tender. SECTION 3

PROJECT ANII RB~VOIR AREA

3*01, Flod control basin, The flood-control basin is fomd by a rolled earth-fill dam having a crest length of 23,800 feet at elevation 513.0, and a maximum height above ground of 88 feet, or 92 feet above the bottom of the outlet conduits. The basin site is on the sloping plah of dluv5al fan of the Sm Gabriel Canyon where no abutments are available. The approach channel ts the reservoir is designed to cam all discharges up to 98,000 cubic feet per second, the peak ra%e of the channel design flood from the mouth of the San Gabriel Canyon to the flocd control basin, IPRprovements to tbe channel heve been made by the Los Angeles Conrrty Flood Control Dis- trict at various times during the past 20 years. The ends of the dam have been turned upstream and give the dam ar! approxhmte horse- shoe shape, with the spillway section located in the right wing. The area and capacity of the basin at spillway crest (elevation 496) is approximately 1,060 acres and 33,400 acre-f eet, respectively; at maximum water surface (elevation 508), 1,250 acres and 47,400 acre- feet; and at top of dam (elevation 513), 1,315 acres and 53,400 acre-feet. (see drawing, file No. 439/2, exhibit F, )

3.02, Access roads, The area immediately surrounding the darn site 5s accessible on the north v9a Foothill Avenue, on the east via IrwindaLe Avenue, on the south via Arrow Highway and on the west via Duarte Road. A 3Moot wide servfce road runs on top of the dam along its entire length. This service road is connected with the Arrow Highway by an 18-foot wide grouted rock ramp roadway, (see drawSngs, file Nos. 439/2, 439/40, exhibit F. )

38@3* APL access stairway OR the upstream face of the the center of the intake structure of the outlet works goes up to the service road on the dam crest. From a point direct across the service road, a stairway descends on the downstream face to the 20-foot berm at elevation 475, From there the walk ramp exhnds down the slope of the dam to a short stairway leading to the area 191 front of the slervdce building. Along the east wall of the Sntake stmtures a stairway and a walk ramp go down to the water stage recorder intake well. (s@ drawings, file NOS, 4381172 Rev. A, 439/1319 exhibit F. ) 3.ae Fmce~a Safety guard fences line both sides of the spillway for- the entire length, and also both sides of the stilling basin of the outlet wmh, The fences consist of 2-inch dia- mond mesh chain aink geLa.d%edwire screens, 36 inches wide, topped by two strands 02 palvainized barbed wire, They are supported by 1-5/8-inch galvanized steel tubing fence posts. and strengthened with 1-5/8-inch steel tubing braces at each change in grade 6r alinement. Posts and braces are set in 2-inch pipe sleeves which are set in the top of the wall. (see drawings, file Nos. 438/173, 439126, 439/198, and 439/200, exhibit F.)

3.05. Inspections and maintenance. The dam tender or his alternate sm perform periodic inspectiom and maintenance and shall complete inspection check list w shown in exhibit C. Main- tenace work is described in detail in the following paragraphs,

a. ErPbankplewts. PIaintenance nethods for repair or reoonst~uctionof the ~~ntsshall depend upon the extexit of the damaged section, If the damage is small, sand and gravel or other coarse granular material may be used for rep&. If the damage is large, the fill shall be nade In the same manner as the original construction: homogenous material from borrow pits approved for the project shall be used and compacted to a density equaL to the original section.

b, Concrete and riprap, Damaged concrete or riprap structures shallbey,Broken concrete surfaces and exposed reinforcement steel shall be .thoroughly cleaned by chipping or sandblasting and -shallbe built up to the original dimensions; pnewmtiually placed Portland cement mrtar is satisfactory for this work, Srnall cracks in the concrete may be filled with asphlt. Any indication of settlement, uplif't, or failure of ctoncrete structaarers shall be reported by the Chief, Construc.i;ion Division, to the Chid, Engineering Division, for aalysi&asad for recommendation on remecllral action. c. Side drains. Drains have been aonstructed through the embankment 03 the righ$ wing of the dam at Flower Avenue and Highland Avenue. Since the inlets of the drains are below me;rdmuw water swface elevation, automatic drahage gates have been installed at the outlets. Any indAcation of seepage through the dam embank- ments shall be reported by tkie Chief, Construction Division, to the Chief, Engineering Division, for recommendation of remedial action, The clJ.a5ns shall be kept free from any obstructions that would affect a free flow through the drain pipes or the operation of the automatic gates. Automatic drainage gates on the outlets at Flower and IIighland Avenues shall be oiled and checked during each inspection, (see drawings, f Ue Nos. 439/L3, and h39/ltL, exhibit F. ) d. Aecess roads arndberms, Aecess roads and embmt berm shall be adequately maintained for vehicular travel so that ordinary maintenance of %he project and flood-fighting operatiom will be facilitated, The crest with the roadway on the dam shall be well crowned and maintained to drain readily. e, Fences. Wn%enance of the rigbts-of-way and safety guard fences smludekeep- (a) line posts fZnaly set and gates hung in good alinemnt; (b) barbed wire tight and broken strands repahed; (c) corner posts, gate posts, and braces firmly set; (d) chains and loch attached to all gates; and (e) gate keys avaflable at the dam tender1s house to permit authorised travel throughout the property, Cfdvanised posts, braces, and gates should not be painted unless galvanizing fails, in which cascthe surfaces shall be properly prepared before painting, / f, Burrowing anjmdls. Burrowing animals in or near the dam shall be exterminated. Their rimwags and dens shall be opened and thoroughly compacted at the same t& they are backfilled~ Trap- ping and poisoning may be used for the extermination of burrowing animdls. Information about other methods of animal extermination may be obtained from the county agricultural agent,

g, Razmdow obstructions, Reservation area used by authorised personnel shall be kept free from obstructions that may cause injury or impede inspections, maintenance, or flood-fighting operations, Materials, equipment, and auxiliary items' shall be stored in such a way tht they are not hazardous to personnel. SECTION 4 - OUTLET STRUCTURES

4.01. General. The outlet works are located near the geomet- rical centerline of the Santa Fe basin, They include an approach channel, an intake structure, a water stage recorder intake well, a water stage recorder house, sixbeen gated oonduits, a stilling basin, a service building and an outlet channel, Descriptions of the various parts mantioned above are given in the following paragraphs, (see drawing, file No. 439/131, exhibit F, ) ach cE.banne1. The elevation of t'ne a2proach channel .O feet, The approach channel is lined Kith muted rock with side slopes exbending u to elevation 431.0. (see drawing, file No. ~39/131, e*bit Fey

h.03. Intake struuture. The intake structure is a reinforced concrete d,located at the toe of the upstream slope of the dam symmetrically-to the centerline of the outlet works. -It is 206 feet long, 71.75 feet wide and 53 feet high and consists of four equal units, each one having four gated inlets, 6 feet wide and 9 feet high, Trash racks are provided in the upstream face of the inlet structure. A stairway along the east Wall and a grouted rock walk ramp lead to a water stage recorder intake well, located at the foot of the approach channel. A stairway leads from the intake structure to the watm stage recorder house near the tor, of the dam, (See drawings, file Nos. 439/31, 439/45, exhibit F. ) 0,Gate chamber$, Four gate chambers fom the intake structure, kach gate chamber contains four gates, totaling sixbeen gates. These gates are operated by hydraulJ.c oil cylinders with all operating and control equipment located in the gate chmibers, Parts may be nowd with a heavy dolly running on a serxlce car track which extends through the four chambers. An overhead trolley beam with a 5-ton, 20-foot U-b hoist runs from gate chamber tWt into the access gallery. (see drawings file Nos, &0/1.1, &0/15.12 &0/20.1, W10/33, 440/36, u0/38, h0/39, and .!1.40/41, exhibit F.) 4.05~ Aocess gallery, An access galleryo along the centerline of one of the center sections of the conduits, connects the gate chambers wh6h the s&ce building, It is approximately 398 feet long, 12 feet wide and 12 feet 4 inches high, A short stairway with a removable gwrdrail descends from the floor of the gate chamber nBn at elevation 439, 27 to %he floor of the access gallery at elevation 434,O. (See drawings, file NQS. 439/LS, 439/U1,1 and 439/131, exhibit F. ) 4.06. Water stage recorder intake well. The water stage recorder intake well is a reinforced concrete wit, located at station 7*&.b5, near the outer end of the east wing wall of the intake structures of the outlet works, It is approximately 33 feet deep, but 'only about 8 feet protrude abwe the embankment. The upper part, which is the reoorder house proper, measures 4 feet by $ feet inside and the lower part, being the well, is 3 feet by b feet inside, An access ladder, consisting of steel rungs, extends fromthe bottom of the well to the floor of the reoorder house, A trap door in the floor affords entrance to the well. Wbr enters the well through a series of six 12-inch by 1-inah slots, spaced 3 feet apt, in the north wall. (see drawings, file Nos. 439/&6, and &O/L1, exhibit F. ) 4.07. Water stage recorder hoke. The water stage recorder house is bddreinforced concrete shaft, located in the outlet works on the upstream side, near the top of dam, at station 977.0, A flight of oomete stairs, 3 feet wide, provides approach from the access gallery to the spbl stabwag in the float recorder shaft. An 18-inch diameter floatwell pipe forms the core of the structure with the spiral stairuey wound around it, leading to the top floor of the shaft, Windows in the no~thhslf of the recorder house afford the operator a view of the intake, The lights in the recorder house and shaft are contfoued from a three-way switch at the head of the spiral stairway. The top floor oonW,m the water stage recorder, an interphone, a radio transnitter and receiver, a convenience outlet md a flush mounted panelboard, controllhg two 2,000-watt floodlights, mounted on the roof, (see drawings, file Nos, 439/99, 439/136, and 438/174, exhibit F*1 4-08, Gabd outlets. The outlet conduits, one for each gate, pass stre~igh%through the embankment section in a cut 10 to 15 feet below nor& sound-surface at invert elevation 420 to 421.0, The s3xlaen conduits are grouped in four 4-basreled sections, At the gates they are 6 feet wide by 9 feet Ugh, changing to 7.33 feet square conduits and extend L73 feet dowmtxesm from the entrwe portal at station && to the outlet portal at station 13+37 and empty into the stilling basin, (see drawings, file Nos. 439/55, k39/118, and 439/160, exhibit F. ) 4.09. &let works stilling basin, The st3ULhn basin is appro-tely 195 feet wide and 173 feet long from station 13+37 to 1$10. The drop from the outlet portal at elevation 420.0 to the floor of the stfll3q basin at elevation 401,O ie in the form of a parabolic arc with a circu4r reverse curve at the bottom, Two rows of baffle blocks, one row staggered in relation to the other, are inserted to aid in the formartion of a hydraulic jump for the mdwtmMI possible discharge fromthe outlet conduits, At the lower end of the basin a 9-foot high and 4-foot wide end sill across the entire width is providedto control the hydraulic jump, UpWt of the slabs of the stilling basin and approach is relieved by a series of weep holes, (see drawing, file No, 49/26, exhibit F, ) 4 .lo. Diversion intake. Frovision for a diversion of a certain amount of wahr to the Rio Hondo chmel in order to satisfy existing water rights is accomplishedthrough a diversion channel consisting of a series of five &-inch square gated outlets contained in a concrete block and equipped with five 5-foot square Calco slide headgates. The diversion charmel branches off from the wet,wall- of the stilling basin with the centerline at station l4i90.50 on a cum having a radiua of 150'feet. Invert elevation of the square outlets is 405.0. The slide gates are being operated by the Los hgeles County Flood @oatml District. (see drawings, file Bos , 439/131, 439/160, exhibit F,) 4.U. Service butlding. !3!he seTvSce buildhg, consisting of two edjacent redangplar units, is a reinforced concrete structure, covering a floor space of approximately 2,000 square feet. It is located at the base of the downstream slope of the outlet works, mar the stilling basin. The smaller of the two units, or west wing, containa a storeroom, a toilet and service sink. Separated by a wall is the larger unit cont-g a switchboard, a standby unit, a telephone desk, and a S-ton, 20-foot lift, trolley hoist for servicing the stmdby dt. The traveling crane requires a 10 hp, hhO-volt, 3-phase sqtll"frrsl cage motor. An @-inch up-blast ventilating f ztn, drimn by a 1/3 hp, ll0-volt motor, provides ventilation for the gate chambers, A 20-inch exhaust fan, driven by a a hp, IlO-voPt fan motor, is located on the floor of this wing. A large sliding steel door with orire glass panels provides access to an adjacsrrt parking space, approximately 200 feet wide and 50 feet long. An opening in the wall fpposite the door leads lntb the access gallery. A waterline of 1s-inch galvadzed steel pipe, extending from tMs wing of the service building to the upstream end of %]he aecess galleqr, supplies three, 3/L-inch hose bibbs in the gallery as well ips one 3/4-hch bibb in each of the four gab chambers. [See drawings, file Nos. 439/80, 439/lllel, 439/u9, and 440/13, e-Lt F) . 4-12, BspecWon and maintenance, The dam tender or his alternate shall inspect each year, before the flood season starts,- the interior of the-outlet sttmet& and the full length of the outlet conduits aad shall eonplete inspection check list, as shown in exhibit C. Hn addit9on to inspection and maintenance work described in paragraph 345a for embankmen%s, paragraph 34% for concrete and riprap, adparagraph 3-053 for fences, the dam tender shall perform m.htewce mrk perbahdng mostly $0 the outlet structures.

a. Channels. Channels shall be kept free of drift- mod, trash, silk., and other debris. Driftwood, brush, weeds and other co&ustible trash on the proJect shall be bmdsafely in areas remved from project stmctmes. Inco&ustible accuuxulat ions shall be hauled away and duped in approved disposal amas. b. Wee holes. Weep holes in the linings of the approach and outlet ch-m bpt open. Plant growth, birdat nests and animal-den accumulations shall be removed from the weep holes, using weed killer to keep dmplant growth, and a piece of heavy wire bent into a hook at one end to remm birds' nests and animal- den acmmlations. Silt deposits shall be removed from the holes, 5.01. General, The spillway is an overflow gravity ogee section located near tihe right abutllfant. The structure is rectan- gular in shape, apysrosrisnately 250 feet long and 1,200 feet wide, Idhen the spiUEsayis in operation, its discharge is directed at what has been called the head of El Monte Island, so that the flow would &.vide naturally down the San Gabriel River and the Rio Hondo. For purposes of dismssjeom, the spillway is divided in the following sectionso approach channel, ogee control section, upstream gravity walls, dowtream gravity warn, stilling baab, and exit channel. These p&s are described in the folloPsing paragraphs. (See drawings, fCLe Nos, 439/337, and 439/198, exhibit F.)

5.02, Approah chamel, The natural ground surface upstream from the spillway is on a slope adoffers a constricbd approach. A reinforced concrete apron, at elevation 475.0, extends 38 feet 6 inches upstream fmm ogee and is 1,2QO feet wide. Gravity walls em, provided on both sides of the structure to retain the earbh ~~ntxpstreen from %he ogeeo (See drawings, file Nos. 439/197 a~za439m8, embit F. ) 5.03* Control section, Tlhe control section, located at the upstream end of the spillway, is a gra~eyogee section with a crest elevstion of &96*0 fee%, crest length of 1,200 feet and height of 21 feet above the approach slab. A l0-foot concrete cutoff, at the upstream toe, wa provided to reduce seepage under the struc- tm. Wing wall cutoffs extend into the errjbankrnent on either side of the ope to prevent percolation behind the walls, A secondary drop structure of parabolic shape connects the spfllway bucket (bottom elevation b73.0) ~5ththe floor of the stilling basin, at elevation 460,0, (See drawings, file Nos . 439/198$ and 439/200, exhibit F,)

5e040 Tlhe stiUgbasin, located at the downs , is pmvided to dissipate the emxa and to reduce scouring in the domtmam channel. It ia 70 feet lag and 1,208 fee% wide, with an end siU 9 feet high, Two rows of baffle piers, 5 feet in height and 3 feet wide, are placed at 6 feet center to center, one row being staggered in relation to the other, (see drawings, file Nos. 439/200 and &39/201, exhibit F.) 5*05e From the end sill of the sti-g b 1approximately 5,000 feet long, with grouted stone-p~obctedside slops, is provided to carry the spillmy discbarge pas% the lower par% of the embank- mnt. The levee heights provide approximately 2 feet of freeboard above the &er surface for the mimimum possible discharge over the spillway. In order to provide added safety to that portion of the dam which paralleb the spLllway channel an the east side, the levee toe has been Eadg I& feet deep on the east side and 8 feet deep on the west side, Tke first ZOO feet of chamel below the end sill am f iUed with derrick stone across the channel bottom to prevent scouring below the end sin. (See drawing, file No. 439/198, exh%bit Fa) 5,06, Counterfort and cantilever wallrs. Upstream and downstream counterfort walb am prodded on each side of the structure to retain the adjacent earth e&a-n% upstman and .downstream from the ogee. Safety guard fences are strung on top of the walls on both sides of the spillway, The walls at either end of the ogee section were designed as cantilever and monolithic eth the ogee. (See &wing, fLle No. 439/200, exhibit F,) 5.07. Inspections and maintenance. The dam tender or h3.a alternate shall perform periodic inspections and &nten~~~.ce according to par&paph 2:~~titled -"~loutineinspections and main- tenawn and shall cong,le%e ZPsspsdion check list as shown in eabit C. The spjlI.lw51y shall be inspected at least once each par during the dry season. Inspection and maintenance of concmte and brrick stone stracfms, channels and weep holes, and the ew ination of hazardous obstmc%~o~~have been described in paragraph 3-05 (g). In addition, the swface d3.ains through the right gJslg of the dam shall be kept free from weeds, trash and accumlations of soil from the exeava%edb -ken or displaced concrete shall be pro*w mpaimd* SECTION 6 - GAT= AND HOISTS

6.01. Gabs* The control structure consfsts of 16 redtmgular conduits wLth invert elevation at 421,0, All of the 16 conduits am 6 feet by 9 feet in cross section and controlled by slide gat_es, also 6 feet wide by 9 feet high, For con%rol of the openings, hydraulicsUy operated slide gates have been selected by reason of their simplicity, low mintenance cost, and the fact that this type of gate is less subject to damage under careless or inexperienced handling, Relief valves am provided in the pressure control systen to prevent the developnt of excessive pressure and no damage Mil result if a gate leaf closes againat an obstruction as the pressure simply builds up until the relief valves discharge. The gates are designad for madmum average hydrostatic head of 87 feet above the conduit invert,

Hotor driven high-pressure rotary pumps sup~3yoil to the slide gate hoist cy3bdexs. The 16 gates are set Gp- on 2 batteries of 8 gates each. Each battery bas a separate oil pressure system, including a sePvPce pimp and m%or and a standby pump and notar. Each gate is operabd by a manually controlled 4-wy valm located mar its hoist qbder in the gate chaaiber. Four of the slide ga%es, Nos, 3, 7, 10, and a, can be locked at any positTcan between the including fully cXosed and fWI.7 open. This is accomp3is&ed by hy&aul=Lo automat5a gate holdem mounted on the head of the hydraulic operating cylLnders and controlled by the oil used to operate the gates. 'Plae remhing 32 gates, when not closed, can be looked in fully owned position OW. This is accompUshed by antomatic gate hange attached to the ceiling directly above %he gate o rating kderS. (~sa&awlngs, fib Nos. &0/1.1, &0/15~1. 6/20.la ZT/3;0/36. and &0/38, exhibit P. ) A msemir regalation emir RsguaaLion Section. eludes the following tables and curves r

be OperaS1ion of Iss Ang Pes County Flood COH1tm1 DiB- trict dams* e c, Outlet gate operatioIi schedule. d. Elevation - dischargi curve. e. Outlet gate &SC~GP 9 ctLT"8esv f, Resemir storage t .&I g, Outflow gaging station discharge cum. h. SpUway &scharge table,

6,O3* The gates are operated by sixteen nders with all operathg and control equipment located in the gate chambers, which are separated into two complete systems of eight units each. Pres- sure and return pipes of both systems are connected by mans of interconnection valve so that any gate can be operated by any one of the four punping zrnjts at the rate of about 1foot per minute, Each hoist cylinder is equipped Wth a gate position indicator, (see drawings, file nos. &0/1.1 and 440/38, exhibit F) , 6.04, Electric motors and accessorieso Electric motor driven high-pressure rot- pumps supgly oil to the 16 slide gate hoist cylinders, grouped in two batteries of eight. Each battery has a separate oil pressure system, incl~idjnga service pump and motor and a standby pump arid motor. Each one of 'the two pump units includes a squirrel cage hduction motor, 10 horsepo~rea, 1,000 revolutions per ndnute, volts, totally enclosed, with f memomted vane type rotary plaaqp, The pump suction adoil return lines are eon- mctsd to a 250-ga31on tank, which is filled to a level of approximately 160 gaU~y38mhimm when the eight gates are fully open, (See dr , file Ho. &0/fjl, exhibit F. ) 6.05, The dam tender or his alternate shall perfom periodic inspections, tests and maintenance, as described in paragraph 2-EO and 2-~l,-andshall complete inspection check list as shorn in exhibit C, Additional information is given in booklet titled '8mLa Fe Dam, Ins~ructionsfor Operation of Service Gates,!' 2~exhibit 0-2, Maintenance work pertaining to service gates and hoists is described in detail in the following P=-asa~bo a, General* The gate and hoist assemblies shall be maintained in the best possible operating coz~dit;ion. They shall. be tes%ed once every month and %he report (see exhibit B) shall be submLtted to the 3ngLneesing Division through the Cons-bruction Division, Repairs, wWch shall be made by electricians and mchanics frorathe District base yard, shall con.tomto the standards specified in the eontract specifications for the original. work. hose, damaged, wsemiceabPe, or missing parts shall be promptly tightened, repaired, or replaced, b. Gates. Gates must come to a true watertight closure agabst the bottom seal, The Chief, Engineering Div'lsion, shall be notified by the Chief, Constm%ionDivision, whenever the gates fail ta close tightly or whenever the seals am damaged, Gate- seal surfaces shall be kspt clean and Tree from mud and sand, and the bottom sealing surface shaU be kept free from rocks or other obstructions. To dnlmize the adhesion of abrasive dust and sand, the gate seals, and f ram seals shall hlEV5R be lubricated.

c. Hoists and motors. Hoist rimtors shall be kept properly luBFicafad. Before attaching the grease gun to the grease fittfng, wipe the fitting carefully to remove all accumulated dirt and grit. Each hoist assenib3y shall operate smoothl;g. and without abnormal noise or vibration. The gate position indicators shallbe adjusted to show the actual height of the bottom of each gate above the intake hvert. Each gate shall stop automtically at the fully open position and shall close tightly wlthout shock. F&ll bearings of the hoist motors shall be checlced every 3 months. The hoist moto~sshall be lubricated and maintahed by qualified electricians from the District base yard. (See paragraph 7-08.) d. Painting. Painting of exposed raetal surfaces shall be done as required. Surfaces shall be thoroughly cleaned before painting; oil and grease shall be removed with suitable solvents and clean cotton rags, and rust spots and loose paint, with stiff wire brushes. Paint shall be applied in a workmanlike manner and in accordance with the applicable paragraph of the oziginal construction and supply specifications. Gates, gate frames, trash racks, and other metal surfaces emsed to water shall be painted with rust preventims. SECTION 7 - EUCTIU;CiiL FACILITIES

7001. Electrical energy ig qpUed at by the Southern Cali- fornia Edison Compaqy to a wood pole stepdown transformer rack, located on the south side of Arrow Highway, about 60 feet east of the bridge over the outlet channel, The single-phase lighting transformer is attached to a pole 180 feet east of the meter pole. The 3-phase power lead and. the single-phase lighting lead pass through mebr boxas mounted on a short pole 25 feet east of the transforxner rack. From this point both leads are carried under- ground in the same trench in rigid steel conduPb to the switchboard in the service building. Although the Southern California Edison Conpany converted its system in 1947-48 from 50 cycles to 60 cycles, the existing SO-cycle equipment in the control house is satisf actom and was not changed. (See drawings, file TTos . 4.40/46 to &0/51, inclusive, 439/69,1 and 439/lX6.1:, exhibit F.) 7.02, Standby mrmito The standby power unit is located in the east corner of the service bullding. It consists of a sb- cylinder water-cooled diesel engine, rated at 138 horsepower, direct connected to a 93.8-kv.-ae, 2,400-volt, 3-phase, 60-cycle generator. Full load speed is 900 revolutions per Il-dmre, The exciter, 3 kilo- watt shunt wound, 1% volts doc., 1,750 revolutions per rainute, is driven by V-belt from the generator shaft. II 2-cylinder gasoline engine is munted on the diesel engine as a starting engine. A 1,000-gallon fuel oil tank, 48 inches in diameter by ll feet long is located abou-b 100 feet south of the service building, and connected by *-inch diameter copper tubing, placed in a 2-inch steel tube, with the standby unit, (See drawings, file Paos, h.40/43 and &o/&, exhibit F.) -7.03. Switchbod ewitchboard, located -in the service building near the standby unit, contmls all the power and Ughting ciscuits, Separate air clrcuft breakers eoxu2;rol incoming power and light serdees from both the power cowany and the standby generator. Transfer sal.2,ches pmd,t selection of either source of energy for both power and Ugh*, Air circuit breakem are also on each hoist motor circuit, on the standby generator, on the step-down transformer forthe lighting aircuits, on the service building crane, the sexw ice building, %he recorder house, and the gate cheer circuits, Other instmnts on the ;srsJritchboa-Pd aclude 3 ground detector lamjps, a 13-cbcuit lighting distribution panel, 2 a,@, voltmeters, 2 a.c. amoaeters, 1 doc, voltmbr, 1 doceanmeter, 1 voltage regulator, and %he respective switches . (see drawings, file Nos. &O/Lr6, 440/48, e,xMbit F and e~&%bitG,) 7.04, Ught f fxtmso Ught fixbures hclu& two 2,000-watt floodlights on the roof of %he recorder house, four 100-watt lights

7-3. fn the sehice building storeroom, one XOO-watt light in the toilet, fourhen fluorescent units in the south wing of the service building, none soffit lights in front of the service building, twenty-one 200- watt lights in the access gallery, fourteen 60-watt stairway lights and sixteen 200-watt Ughts in the four gate chanhrs. (See dmw- ings, file Nos. 440/46 to U0/51, inclusive and 439/69.1, exhibit F. ) 7.05. Convenience outlets. Convenience outlets consist of I2 outlets in the semice building, 8 in the gate chambers and 1 in the recorder house. (See drablings , file Nos. Ws0/46 to &0/51, 0 inclusive, exhibit F,)

7.06. Ground wire. All the conduits behind the switchboard are tied together with a copper strapping which is grounded to the water system on the north side of the entrance to the access galle in the service buil-g. (See drawing, file No. &0/46, exhibit F.7 7.07, Traazsfo~lgers~The generator voltage of 2,400 volts is reduced to 480 wlts by three 25-kilovolt-ampwe, single-phase air- cooled tramfornmers, which are energized by s S9000-volt, 200- ampere, gag-operated c3rcruit breaker, all located in the northeast corner of the south wing of the service builang, adgacent to the standby unit, A dry type 48/&0/120-m>lt, 15 K.B,A. transforsner is located on the wall behind the main switchboard for electrjtcal service to Ught paasla in the servfce building, gate chamber and the recorder house. (See drawings, fih Nos. Wc0/46, &0/47, exhibit F.) 7&8. Inspectioxxi, tests and malntenancer. The dam tender and the electrician from the base yard shall perform periodic inspections, tests and maintenance of the electrfcal facilities, and shall complete inspection check list ss shorn in exhibit C. The dam tender shall complete tes%-operation report for the standby power .rmit, as shorn I 5x1 exhibit D, Maintemce work is descrfbed in detail in the follm- I ing paragraphs : I a. General. Defects in the power-supply, mechanical l and electrfcal facilities should be detected and remedied BSFORE I f&lwoccurs. The standby power unit shall be tested every 15 days, around the lst and 16th of each month and the reports, as shorn in exhibit D, shall be sub~ttedtothe Engineering Division through the Constructfon Division, The fuel tank for the standby unit shall KEBER be less than half fill. Other mchmiczll and electrical equipment shall be tested every 30 days, or oftener, if a defects develop. Equipment removed. for repair or alteration aha11 be replaced dthout delay and tested after reinstallation. If wbbg becornes damp, mgger tests shall be made of insulation, Service building windows and doors shall be kept in good repair and locked to protect the e@pment from dust, rain and vandalism.

be Electrical su Ig and service. Any evidence of trouble developing in the ele%rical supply lines or transformers 7-2 shell bo Lwndiatelsr repoded to the loca1 representative of the Southern CaAlforuia Edlson Conpar5rand to the Chief, l{alntenance Section. Mainterence of the poler-service lines frorn tbe Southern Callforrota Edison Coryantrrtsmeter box into the servico bullding ls the responsibiltty of the g9v€rnmento

unit,,- . The mail englne and tbe st'arting cated. Before otther engLne is started b,y a,ny alte:mate dam tender, wtro is not fad.Iiar with the sta,rttng. of tbe standby engLnes, should read the instnrctlon manuaL,oxhiblt G.

The folloning work shall be

Tbe generator shalJ bo cleaned utth corpressed air evel7. J2 rpnths and must alwa3rsbs prcperly 3nbricated sith high-quality turbine oiJ- equal to S"A"E. No. 20" or as reconmgndedby the nanrfacturors. The oil shall be added to the bearlngs until it shors f,u].l on tho orerflow, Wtrerever oll- ln the reservolr becores dtrty, it shallbe rercved. Tho generator exciter bnrshes shall be f,reguent3y-inopected and replaced BEFORSthey r,rear downto the netal ends or to r+bero the bmsh holders scratch the oornnrtator. the excitor cormrrtatoru w?rtch shal-L be kept elean and smoothr gen- era116r ts poltshed and chocolate brovm j-n color drere the bnrshes r{.de on it3 blutsh eolor indtcates ovorh€atlng. €o ffi.tchboard alrd Ll"ehtinE fixtrrres. The swltchboard sha l be cleane , Cabinot doors sha1.l-be kept tigbtly cloeed," Keep switchos, llgbts, convenj.ence outletsl and wfuC.ngclncrrltss in flrst cl"ass operating condltisn. Defecttva parts Ehatl be replaoed witb new parts equaL J.n qrality to those in the origlnal installation" to servicg" In trans- ferring tbo Conpeqrservice, use instnrotions shown on plate 1, erihlblt G" 6hock voltneter oa gonerator si-de to ua,lce eertai.n tbat generator is up to fulL voltage.

En Transferri.:aE plent to Edison Gorlgsay service. To transfer to Edtson soffice@ shom on plate L, exhlbit G.,

NOIE: - The voltage regulator and the field rheostat aro not to be touched at aqr tine except by authorLaed personnel from the baEE 3rard"

hn $hattinE dour, plant &rnine smersenci€so Ia shutting ciorm tfre pi shosn oa plB.te 3., oxlribit G"

CAUTIONT-- lfever uso transfer s1{itches to otrmu a circrrit under ]oad. T*3 8.01. Staff gages* On the upstream face of the dam, adjacent to the south end of the trash racks, are 13 staff gages, each 5 feet high, indicating the resemof r water surf ace elevation from 4.45 feet to 510 feet, In addition there are four vertical staff gages ; one is located on the left wing wall at the intake to the float WU, reading from elevation 421 to 451 feet, one is located inside the float well reading from elevation 421 to 449 feet, and two are located on the wing walb of the spillway. -4ll these staff gages are graduated in feet and tenths of feet,

8,02. ReservoiP water-stage recorders, There are two Friez water-stage recorders, mdel FA-4. One, located in the upper float recorder house near the top of the dam, - is equipped with 2 tapa gage and a Selsyn motor and records water-stage elevations from b1.S feet to maxim water surface, The other mcorder is located in the gate cheer "BH and is operated by a Selsyn motor from the lower float recorder intake mlP, and records water surface elevation from 421 to 4.45 feet. Two Selsyn indicators are in tho ga-be chamber "Bn; oneg which indicates reservoir water surface elevation above &l,5 feet to xwdmmn water suf.face, is connected to the mcorder in the upper float recorder house, as mentioned before; and the other Selsyn indicates the water elevation at the gaging station in the outlet charmnel, (See drawings, file NOS, 439/69.1, 439/46, and 439/1.36, exhibit F) 8,03. , akrelve Gurley and four Uetz horizontal alled adjacent to their respective gate cylinders 5n the gate hoist chamber, recod operations of the semlce gates. These recorders requZfe weekl;g re-win- and daUy or weekly chart changes according to whichever time chart and the setting is used, The tim elelnent on &hese reaorders is hori- zontaland the height e1ermsn-b is verl;ical. The gate position recorders are operated by perforated tape attached to the gate open- ine; indicators. During the time of no gate operation, recorders need not be opepate$. For flood operation do not operate gates without obtaining an autographic record of such operations. 8.04, Gate position indicators, Each of the 16 gates is provided wi%ha gate position indicator, consisting of an indicating rod, connected directQ- ~5ththe gate leaf, and a gage panel mounted on the side of the hoist cylinder. This panel is graduated in feet and tenths of feet, so that the position of each gate leaf can be accurately determined at any time, . 8.05. Outflowaag~~station,AStsve~smbr-stage =corder, model A-~S-B,equipped with tape gage, two staff gages, a float actuated Selsyn motor and a cable car are located at a gaging station in the outflow channel. The U. S. Geological Survey Ls main- Ixining and operating this station,

8,06. Standard rab ganes, There are two glass tube rain gage80 One is located at the dam tender's house, and has an 8-inch diameter collector ring, fastened to a tripod on the house roof. It is connected to a glass tube graduate inside the office by *-inch copper tubing, The other gage, also equipped with an 8-hch collector pg, is located on the service building roof and is connected by 0 5-inch tubing to a glass tube graduate in the service building,

8,07, Recording rain gage. A dual traverse recording rah gage with the capacity of 12 inches, is located near the dam tender's residence, 8.08, Sedimentation monuments Sedimentation monuments are being used as reference points in the basin and dam for sediments- tion smys. In the basin they consist of short square concrete posts capped ~5thbrass disks, whereas on top of the dam, along the road, they are 2-inch iron pipes wLth caps,

8.09. Tnspection, servicing, maintenance, and reporbinge lnspo- tion, servicing, maintenance, and reporting are done b$ the dm tender, the U. S, Geological Survey, and the Hydrology & Rsservofr Regulation Section of the Engineering Division. Thjls work is described in detail in the foUaparagraphs.

a. Ig. %he dam tender, The diun tender or his alternate shm perform periodic inspections and maintenance of the -0- graphic instaUations, and shall complete inspection check fist as shown in eSitC. 9n addition, he shall keep the back%oards for the staff gages firm and painted white; gage faces clean; silt accumulationgi removed from flea$ wells and intakes to float wells; outflow gaging station and appurtenances pain-bed with outdoor paint and repaired; and weeds cleased near gaging stations. Upon receiving mitten instructions fromthe ?ydrology & Reservoir Regu- lation Section, the dam tender shall perform routine servicing of the gages, except the water level recorder at the outflow gaginp; station (see following paragraph), and shaU. make radio and mitten reports to the Qdrolom & Beservoir Regulation Section.

b, I& the U. S. Geological Smg. The U. S, Geological Smyis responsible for servicfng the outflow gaging station and for pubus& outflow records of this station the-U. S. Geologioal Water Supply papers , c, By the Engineering Division. Designated personnel of the Engineering Division shall inspect, service, and ad3ust all recorders at 304y intervals or more of ten if necessary during the flood season, 15 October to l5 April. Also, they shall complete inspectLon check list as shown in 8j.Ubi.t Co 8-2 SECTION 9 - (30f@NNICATION FACILTTm

9,01. Radio station* A radio transmitting and receiving station, which permits communication between the dam tender and the Hydrology and Reservoir Regulation Section, is located in the float recorder house on top of the dam at %he outlet works. Remote controls for the radio are located at the telephone desk in the sez-vice building and in the gate hoist cheer flBfl.The station, which operates on a frequency of L0,060 kilocycles, is a pa& of the Corps of Engi- neers radio-reporting net~~ork.The call letters of Santa Fe Daan are WIJK 4230 9.02. Telephones. The telephone communication equipment is housed in a booth in the service building and consists of a remote contxolfor the radio, an intercommunication station, an Associated Telephone Company set, and a magneto set, The two latter sets extend to the dam tender's residence. The intercodcation system connects the service building wLth the gate hoist chamber "Bit and the float recorder house mar top of the dm. One telephone howler is installed on the roof or" the servfccs 'building and another howler of the intercommunication ~ysternis located in the phone booth in the service building; they go on s~taneously~5th the telephone calls, A telephone buzzer is 1oca"cd on the wall of the gate hoist chasriber ltBn wear the entrance of Dhe access gallery, (See drawings, file Nos 4.40/46 and &0/k~~exhibit F, ) 9.03. Maintenance of radio facflifieso The maintenance of radio facilities, including periodic inspecting, testing, and servicing, is the responsibiUty of technicians from the base yard. When trouble develops irn %he radio faciU%ies, the dam tender shall notify the 'iiydrology and Resemo5x Regulation Section of the Engi- neehng Dixision immdiaialyo

9eO4. Telephone maintenance, The telephone maintenance is the responsibiEty of the Associated Telephone Cornpang. When tsouble develops in the telephone sePvim, the dam tender shall immediately notify the conrpangrls service depesl;mnt. Farther, during storm, priority for repairs shall be requested of the company, Inspection and maintenance of the Sntercomrmxnicating and magneto sets are the responsibility of the eleotPicalma5ntenance section of the base gard. SECTION 10 - BUILDINGS

10.01. Dam tender*^ house. The dam tender's house is located approximately 2,4OO feet northwest of the service building. The house is a single story frame stucco, consisting of sir. rooms, semr- ice porch, bathroom, and a shingled roof. The foundation consists of concrete waUs and cast-in-place concrete piling. A central heating system with fuel storage tanks and piping is prodded. Sew- age disposal is by mans of a septic tank and field distribution pipe. The house has the customary plumbing facilities, and is wired for complete electrical semce, including electric range, Adjacent to the house, at the rear, is a concrete slab covered by a asphalt roof, which is supported by 4-by 4-inch posts, Outbuildings consist of a small building used for paint storage; a 2-car garage; a long, narrow lean-to used as a cofiination worlshop, tool storage, and garage; and a small building used for tool storage. A 3-inch pipeline carries domestic water to the house, Access is afforded by a driveway to the house and guage, and walks between gasage and ~OUS~

10.02. Electrical sera and eqgipment. Ehctrical service, consisting of a single-phase, 220-110-volt service, is furnisbd by the Edison Company from a transformer mo~mtedon a pole just south of the dam tender's house, supplybg domes%ic electricity for the lights, the heaters, and the electric range.

10.83. fnspections and maintenance, The dam tender or his alternate shall perf om periodic inspe ctf ons and maintenance as described in paragraph 2.10, and shall complete inspection cheek list as shown in exhibit C, Naintenance pertaining especially to clam tender's house and adSacent irrprovemnts is described in detail in the f ollotdng paragraphs, a, Electrical. Electrical circuits are protected by fuses or automatic circuit breakers of the correct ca2acity for the particular circuif. Ebctrical maintemance, including installation of new xiring, shall be in strie% conformity with the IJational Electrical Code, Cards shall be replaced BIZFORE the insulation becomes so worn as to leave wires eqosed, and shall NEVZR be hung over nails or shqmetal objects, be Painting, redecorating, and similar type hg the dry season, preferably during May and June,

c. Vehicles and equipment. Vehicles and equipment, including tools, shall be kept in first-class condition. Govern- ment-owned motor vehdsles will be inspected and maintained by the base yard in accordance with Technical Manual 38-660-1 titled Operator's Maintenance Instructions and Procedures for Administra- tive Xotor Vehicles. d. Landscaping . Landscaping znaintenan ce work includes irrigating, pruning, t-g, and other work required to keep trees, Shrubs, flowers, and grass in first-class condition.

e, ~cellaneous~Minor structures and facilities not specif icallgT described in %his .manual shall be inspected at the same the that major adjacent structures and facilities are inspected; maintenance work shall be performed in accordance with that prescribed for structms of sjlmilar material. The dam tender shall seek assistance from the Cbxief, Xaintenance Section, when maintenance problems occur that are either beyond his experience or not described in this manual. The dam tender shall be familiar with approved safety measures and first-aid treatment, which are under the supervision of the Safety Branch of the District. The SafeLy Branch shall arrange for essenkial hstructions in safety and first aid for the dam tender and other key personnel, SECTION 11

WATER SUPPLY I.LND SEWAGE

Water is supplied to the project District through a 3-inch standard galvanized pipe which COI~~C~Sto a s+inch water main on Arrow Highway, approximately 2,770 feet south of the service building.

11.02. Sewa e s stem. The sewage system consists of two sewage disposa-T++- uni s one for the service building and one for the dam tender's house, Tbsystem fen. the service-buUding includes a 4-inch cast iron pipe that extends into a septic tank located about 100 feet south of the serrvfce building; a k-inch vitrified ulay pipe that carries effluent from the septic tank into a distribution box; and three SOIfoot runs cf 4-inch open-joint vitrified clay pipe distributing the effluent into gravel-filled trenchee,

The system for the cUi.sn Lender's house includes a 4-inch metal. pipe carrying sewage into a septic tank about 25 feet southwest of the house; a h-inch vitrified clay pipe that carries effluent from the septic tank into a distribution box nearby; and three runs of 4-inch open-joht vitrified clay pipe distributing effluent into gravel-filled trenches, 11.03. The darn tender or his altemraLe s ons of drainpipes, sewer lines, and septic tanks, and shall complete iA?spection check list es shown in exhibit C, Yiintenance work shall include keeping (1) leaking water pipes and valves pruqtly rewed, (2) pipe hangers and supports Sirmlg. in lace, (3) drabs, sewers, and traps clean and properly repaired, the system free from harmful materials and eMca3a, and 5) excess sludge erceucrulations removed from septic tanks, Keep system free of materials apt to clog the pipes. These rm%eriala include grease, rags, and pieces of wood9 also chemicals ba.mtul to pipes and to digesting bacteria, These include lye, acid, salt, oil, and gasoline. Sludge accumulations fn septic tanks 9Ube inspected each year before the flocd season begins, preferably dwhg SepternTDer or October; man- hole covers shall be removed for this inspection, If sludge accu- rrmlations in either tank are halfway up to the inlet or outlet pipes - or about 10 inches deep - the acclnrmzlations shall be either bailed or pumped out an6 buried in trenches, If annual inspections inacate tbt aco~tionsin either tank are not suffictent to warrant annual removal, the inspections of that tank may be extended to 2-yeas periods, FIFE-FDGIITZEJG EQUmTT AHD FIRE AND ACCDmT PRE.EdTIOM

. Fire-fighting equipment in the sew size carbon dioxide extinguishers

l2.02. Gate chambers. Fire-fighting equipment inside the gate cheers includes four 15-pound size carbon dioxide extinguishers, one for each set of four gates, and eight 3/4-inch hose bibbs, one bibb for each two gates. 12.03. Dam tender's house. Fire-fighting equipment in (1) the dam tender's house includes six 1-inch hose bibbs with hose and two 2-inch hose bibbs with hose, (2) the tool shed includes three @pga~on soda-acid extinguishers and four l-inch hose bibbs, and (3) the gasage includes three 1-inch hose bibbs with SO-foot hose and one l$-inch hose bibb with 50-foot hose. 12.04. Inspections, tests, and maintenance. The dam tender or his alternate shall perfom periodic inspections and maintenance of the fire-fighting equipment, and shall complete inspection check list as shown 51 exhibit C, Fire-fighting equipment shall be kept in first-class condition at all times. Vkaintenance is described in the f ollo~Jingparagraphs :

a. Fire extinguishers. Fire exbinguishers inside the buildings shall be placed near doorways or windows that are easily accessible from outside. All exbingubhers shall be inspected once each month bg the dam tender and annu- by the Safety Branch, and inspection date recorded on attached card. Inspection will. determine whether they are fully charged. They shall be recharged inme- &lately after use and shall be replaced promptly if defective. 14ah.i;enance of the soda-acid extinguishers shall include (1) re- ~novingthe cap and inspecting the conten%s once every six months and (2) emptying, cleanjag, and recharging the extinguishers, in accordance with the manufacturer's instructions, once each year.

b. Fire hoses and bibbs. Fire hoses and bibbs shall be inspected once each SIXmonths and promp~lyrepaired or lwplaced .ff defective. Hoses shall be replaced BEP~RZ-the$ are badly -&racked.

c. Fire prevention. $very precaution shall be taken to prevent the destruction of proprly by fire: All personnel nmt be constantly alert to the dangers inherent in fire hazards and the necessity for their prompt removal. Precautionary measures include (1) removing dry grass and weeds from the vicinity of buildings and conbustible sPructures, (2) removing Wmole trash promptly and. storing inflsunnaable m%erials safely, and (3) preventing sh& circuits in electrical wiring and eqaipment, fnflarn- mabls trash inc1;zding wastepaper and oily rags shall be placed in covered fkeproof contahers and burned daily in the incinerator before 11 a,& Inflamable 8latez-ial.s inc2;lding gasoline and pain* shll be stored O1GP in the paint storage shed in tightl;jT sealed safety conta-iners placed, if necessary, in locked compa~tmentsout of the reach of children, laflar,mble materials shall NEVER be stored in the clam tencier' s house or the garage building, Short circuits shall be prevented b;r keeping electrical wiring and equtp- ment in first-class cond-.%ion, by not overloading any circuit, and by protecting circuits wit11 proper fuses or circu-it breakers,

12&, Operating personnel will. assure continnous ac eh.lutques in the operation of the Sawla Fe Dam and will apply every practical mans for the promotion of safety of the facility, a. The agpkkation of safety will be in oonfomnance wi%h the Corps of Engineers ancl Los Bngeles District Safety Program and PoUU~~S~ b. EH 385-3L-9, General Safety Re& s,dated 13 114arch 1958, establishes the general safety reqvirenents for all. activities and operations of Smta Fe Dam, c, RequSPemgnts outuried below do not detract from the above directives but are enphzbsized as they pertain to pre- doninate hazards which require foremos-t considepation: (1) Personal probctive equipment such as hard hats, goggles, safety belts azd lines, ete,, shall be furn5-shed employees as requAmd and their use enfopced; (2) reciprocating, rotatfng or mo- parts of equipment shall be guarded, V suoh parts are exposed to contact with persons, or otherwise create a hazard; (3) portable electrical tools and equipment shall be grounded; (h) rubber mats will. be positioned at all times in front of electrical control panels;

(5) whsn an individual is required to work alone in a renrote section of the darn structure or the reservation, he shall inform other residing at Sank Fe Dam where he is going to work and the approxbmte %3mhe sirill return, The iraformed pereon will check on his whereabouts if he does not repost, back at the approxbmte time; (6) paint and other flammable matsrials shall be stored in locations approved by the Safety Branch; (7) wire rope used in connection with operations at the derm shall be inspected in accordance with section XVII of EM 385-1-1, General. Safety Requirements; (8) signs, fencing, and barrfcades wiJl be adequately maintained, Protection of the public (visitors) will be given foremost consideration, (9) Notor vehicles will not be used on steep roads or ramps if they are not properly tuned and if the breaking system is not in good condition, (10) Ruergency eQufpment (fbst aid and rescue) willbe adequately maintained; (11) Doctors', ambulance service and hospftal names, addresses and telephone numbers will be posted at telephones; (12) accidents will be reported in accordance with District instructions, PubUlcations relative to such reporting procedures will be kept on file, SECTION 13 FESERVOIR REGULATION AND FI#D ZIERGEMCY REQUIR-S

13.01. Reservoir regulation. The regulation of Santa Fe Dam t o aff ectvperationof the proj ect is a respon- si'oility of the Chlef, Engineering Division. He has delegated this responsibility through the Chief, Plannfng and Reports Branch to the Chief, Hydrology &Reservoir Regulation Section. Information pertaining to the regulation of Santa Fe Dam is given in the Reservoir Re~niLationManual for that ?reject. This manual contains: (a) detafls on the district's organization and neth hods for effect- ing the regulation of the project; (b) an explanation of the plan of operation and (c) pertinent data required for the operation of the dam. These operating data include a gate apesation schedule, area and capacity curves, an outlet discharge curve, a splllway discharge curve, the reservoir design flood routing, the spillway design flood routing and other fnformation. The dan tender shall transnit hydraulic data necessary for the operation of the darn to the Hydrology & Reservok Regulation Section, including water sur- f ace elevations, gate settings and rainfall amounts, During severe floods, trafned engineers are dispatched to the Santa Fe Dam to assist in the flood fight and to supervise operation of the project if co:munications vit'n the District office are interrupted. In addition to the Rersm5.r Regulation Manual, the dam tender has been supplied with a book of operating data for the reservoir, which has been cowi-fled primarily for use if co~~m~~ni-ationsshould be disrupted during a flood, It is important that the dani tender and the district personnel assigned to assist hi= dur- high water periods shall be thoroughly fanrlliar aththe contents of this Operation and Naintenance manual, the WH500-1-1, Emergency Flood Control Activitiee Phmal and the Reservoir Regulation I"famalfor Santa Fe Dm, 13.02, Flood emergency preparations. Flood emergency preparations inclub storing adequ&Le quantities of flood-fighting materials and equipment on the project BEFORE the flood season. If needed, additional materials and equipment shall be obtained from nearby dealers. Construction of flood damage preventing structwee is also described in the flood emgency meunral. 13.03. During flood emergencies, the dam tender and his assi keep the dam, the outlet works, and the spillway under constant surveillance to quickly detect and remedy (1) sand boils or unusual wetness on the downstream slope of the dam; (2) incipient slides or sloughs; (3) stream or .wave erosion; and (4) any other conditions that co~zldendanger the enibankment. 13.dc0 The U. S. Weather Bureau is the Govern- ment agericy sible for issuing flood warnings and weather forecasts to the public,

13.05 Mobilization, Detailed bstmctions on mobilization of &strict forces for emergency duty during floods are given in the LADM !.320-1-1, Ehergency Flood Control Activfties,

13.06. Notification of reservoir releases, The dm tender shal3 notify governmental and private organizations of anticipated water releases frorl the reservoir, Organizations i terested in such notifications include (1)Federal agencies; (2f water con- servation districts* (3) law enforcement agencies; (4) highway departments; and (5) recreaticnal licensee. (see IgDM 500-1-1, Emergency Flood Control Activfties, issued by Corps of Engineers, U. S. Amy, Los Angeles District).

IN$PECT$O BY

10, GA~ES- ~crrrrosion, distertioh of leave's, dates or Jtame~, gote creep, missing bolts cr nub, ail leakage, *ighthss OF beals, clean sieuiing sutfa-ces, lubrichtion, pbint

21. HOiSTINC EOUIPMENT -hoist cables, {metion af chdins and spreekats, vibratieh ulf Qeat boxes, drive shahs, bubrikation, gate s'tem, enc6ssive wear, corrosion, rust, @in4 22, HYDRAUtiG SYSTEM - eiping leaks, rohtrol system, pumps & motors, lubr~cution,~~arking, excessive heat 23. ELECTRICAL EQUIPMENT - motors, heiaters, gate pohitlon indicators, panels, loose wives, insuiatibn, switchbeard, defective parts, burnt fuse*, broken switches, sparking, overheating, cleanliness r" ' 24 ~IYIZROMETR~~EQUlPMENT - correlotci setkings, clutomatic recbrdihgs, ckcks, tope, ink in pms, chbrts 25. T ELEPH~NEoRAO~O* defects in tadia pr telephone communication system, volume, ouaiMe howlers

,2f. €?LE,VATOR - ma lfrtnctioaing, shrt, rbn qnd slop, bake&, paint, lubriratlon, eleq~lli~ss 28, FEN~~NG- damoge'd kbric, wires, post$, ;cablea, chains, gates, missihg hncing accessorie?r, ~llnement~ pbint I I

M DATE

Engim Fuel on hand gall~ns- m911bm

Operate at least 30 mi.nu%eson Is% and X6th of each mnnr$k, Prepare in taPiglf~~tgi2 cop&ea $0 Op~%isnsBranche CORPS OF EKGINEERS U.S. dRMP LOS AKGELES DISTRICT

GATE OPERATIONS REPOE FOR ALL TYPES GATE HOISTS DATE

Is gate opening indicator operating correctly? NOTE2 All gates vill be test-operated at least once a month. Reports shall be made of operations daring stom as well as during routine tests. - Of particular importance is the form required to start or acrack* Damtender the gate fmmthe closed position when there is water pressure against the gate. Under remarks, report all malfunctions or unusual operating characteristics. Prepare reports in triplicate; 2 to Operations Branch, 1 retainsd by Damtender.