|
<br />0013:5Q
<br />
<br />
<br />,
<br />
<br />and data obtained includes daily sUB,pended sediment concentrations and loads,
<br />occasional particle size -analyses, ,and'daily observations 0 f wa tel' temper-
<br />ature. Collection of chemical~uality,record,s wall continued at 11 slirface-
<br />water stations, and daily observations of water temperature were made at all
<br />but one of theSe. s,tations. Stuciies,ofthe quality of ground waters in the
<br />Navajo Reservations and a,t various other locations in Arizona were continued.
<br />"
<br />
<br />-.,'..'-'
<br />:;f:~fi..
<br />;::~~';:::;~
<br />~1(:;::).'
<br />j.\{";
<br />~?fY;
<br />r;;,_<\~
<br />
<br />Ca,lifomia
<br />
<br />Work has continued on the routine operation and maintenance of 671
<br />stream. flow and rel;lervoir meaS\l1'Elmentstations 'and the computation of the
<br />correspo!i?-ing records. The total ,of 671 stations includes 30 stations for'
<br />which computed ,'recorclsarefurnished bY other agencies for publication in
<br />the WaterooSuPply Papers. It includes also 109 stations operated mairily for
<br />licensees of the Federal Power, CommiSSion, resll1ts of which are not published.
<br />
<br />, Qther, surface-w&ter investigations' and special projects continued during
<br />the report period have includecl: (1) correlation studies in an evaluation
<br />of the gaging-station network, (2) d,etermination of ,low-flow and peak- ,
<br />discharge characteristios at S6lec.ted stream sites not equipped as complete-'
<br />record gaging stations, 0) the Comp:1lation Report ot runoff records through
<br />1950, (4) studies Of the J.ower Santa Yn$z River tor the Bureau of Reclamation,
<br />(5) ,study and report on the ,flOw of springs in the vicinity of Tecolote
<br />'funnel -inSan'ta Barbara County, -(6) pr,aparation of the yearly Water Summary
<br />for l;l'oUthern California; that. for 1956 to be published as a circular, (7)
<br />study of 'thEl interchange of ,surface and~und water along selected alluVial
<br />streams in.the Sacramento and San Joaquin Valleys, (8) investigation of '
<br />tidal-afte_cted ,flow of. the SaC:I'amen,to River at Sacramento, (9) re-
<br />determin9-tion,and coordination with othell' agencies, of drainage areas up-
<br />stream from ~aging stations and other strategic points, (10) preparation of
<br />the California section of the rept:l't on "Floods of December 1955 _ January
<br />1956 in Far-1flTestern States." .
<br />
<br />Recommendations were made for a proposed expanded data collection pro-
<br />gram for small drainage areas in CaUfornia. The general Qbjective ,of this
<br />program is to ob~ain suf.t'1c1ent basic hydrologic data to define the
<br />magnitude and frequency of floods on a regional baSis tor the entire state;'
<br />and to obtain fiood hydrograph data on, a state-wide basis for any anticipated' '
<br />fuU!"scale !1Ydrologic, study.
<br />
<br />Pliinswere :initiated tor a survey of Salton Sea up to elevation minus
<br />200 to 'define accurate capacity curves and tables. Field work and pre-
<br />paration of a contour map with five-foot contoursisbeing done by the
<br />Topographic Di,vision.
<br />
<br />'-:~- .:-;...
<br />
<br />Ground~water investigations in co opera tie:n with the state, with local
<br />agencies-; and with tj1e,DefenseDepartment. hive continued without major
<br />change. New inves,tigations begun dUring the -report period are as follows:
<br />.' " , .
<br />
<br />~}~~~:
<br />
<br />
<br />
<br />
<br />i};trs'i
<br />
<br />-
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />''''11;'
<br />
<br />I
<br />
<br />:'_:{~fl.,'._-.:<.:
<br />:: ;":~.:;:::;-':'
<br />
<br />;tit~}
<br />
<br />-.:, 'l!,
<br />
<br />,.",".',
<br />
<br />;~-};;?;
<br />
<br />-3-
<br />
<br />.::-,:'::::.,:'-~
<br />"," '-'.
<br />
<br />.,:,,"
<br />
<br />", ..:~!~.~--",
<br />
<br />
<br />';".".;
<br />
<br />.... "..;. ":</';~:~,~:,',\~;,.,~"~,;:;.,:"",,,?;~~::~;
<br />.,', ,,'<<' -;~:>>:;'. . '. ",' -~;.
<br />
<br />, ,. ~
<br />
|