1996 California Hydrologic Data Report

11214550 COURTRIGHT RESERVOIR NEAR NELSON MOUNTAIN, CA - 1996 WY

                             11214550  COURTRIGHT RESERVOIR NEAR NELSON MOUNTAIN, CA

LOCATION.--Lat 37°04'45", long 119°58'07", in NW 1/4 NW 1/4 sec.7, T.10 S., R.28 E., Fresno County, Hydrologic
   Unit 18030010, Sierra National Forest, at left end of dam on Helms Creek, 2.5 mi upstream from mouth, 4.6 mi
   east of Nelson Mountain, and 9.7 mi west of Blackcap Mountain.

DRAINAGE AREA.--39.7 mi2.

PERIOD OF RECORD.--October 1958 to September 1982 (monthend elevation and contents only), October 1982 to current
   year.

GAGE.--Water-stage recorder.  Datum of gage is sea level (levels by Pacific Gas & Electric Co.).

REMARKS.--Reservoir is formed by rockfill dam completed in 1958.  Usable capacity, 123,286 acre-ft between
   elevations 7,902 ft, invert of tunnel, and 8,184 ft, elevation of spillway.  Dead storage negligible.
   Records, including extremes, represent total contents at 2400 hours.  See schematic diagram of Kings River
   basin.

COOPERATION.--Records were provided by Pacific Gas & Electric Co., under general supervision of the
   U.S. Geological Survey, in connection with a Federal Energy Regulatory Commission project.  Records not
   rounded to U.S. Geological Survey standards.

EXTREMES FOR PERIOD OF RECORD.--Maximum contents, 124,220 acre-ft, Sept. 26, 1982, elevation, 8,184.57 ft; no
   contents in 1961-62, 1968, 1970.

EXTREMES FOR CURRENT YEAR.--Maximum contents, 121,921 acre-ft, June 10, elevation, 8,183.16 ft; minimum,
   53,587 acre-ft, Dec. 15, elevation, 8,128.52 ft.

                         Capacity table (elevation, in feet, and contents, in acre-feet)
                  (Based on table provided by Pacific Gas & Electric Co., dated Apr. 13, 1959)

        7,902          0           7,970        736           8,035      6,269           8,115     42,141
        7,950        267           7,990      1,617           8,060     12,298           8,150     75,878
        7,960        462           8,010      3,129           8,085     22,584           8,184    123,286


                    RESERVOIR STORAGE (ACRE-FEET), WATER YEAR OCTOBER 1995 TO SEPTEMBER 1996
                                        DAILY OBSERVATION AT 2400 HOURS

DAY       OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP

  1     86987    57411    58165    69757    59359    61567    72493    68882   117964   120822   100421    80350
  2     83432    56855    59064    71027    59636    63219    72560    70021   121226   119172   100806    82762
  3     80653    56845    60082    71305    60003    62256    73171    73023   120485   118107   101677    84057
  4     79397    56826    59854    71618    61860    62900    73443    77257   120405   118949   103451    83994
  5     78667    56798    57671    72088    63528    61073    73967    82750   120421   118981   105028    84082

  6     78619    56769    57478    72088    65456    61223    73864    83944   117663   117347   106770    83258
  7     78393    56769    56058    71920    64753    62440    73967    84647   120051   119507   108323    81641
  8     78536    56655    57584    70783    61223    64732    73978    84886   121016   118774   107723    78274
  9     74344    57046    57932    69955    60611    68501    73864    85798   120967   117458   107619    73171
 10     68980    57027    56731    69691    62675    70021    73590    88707   121921   117316   105101    71852

 11     69603    57008    57633    69154    67315    70550    74104    88265   120051   116560   104559    71472
 12     69319    58342    59182    66333    68469    70375    74448    85748   120517   116905    99755    70429
 13     67723    59074    57209    65277    66897    70971    74264    81592   120887   116623    93847    70462
 14     66567    59379    53917    65319    61153    67670    74093    83857   120405   118678    89400    70436
 15     65793    59359    53587    63301    54748    65413    71305    88903   120517   118043    86820    70372

 16     66450    59339    54083    62369    54970    64994    72673    96127   120485   117996    83146    69933
 17     65078    59319    54729    62993    58359    64805    74919   103002   120469   118218    82874    69340
 18     62358    59300    55008    61375    59359    62931    75473   113860   120517   117837    85253    68980
 19     60311    59270    55278    62655    61962    62563    77081   117189   120469   115525    86525    68860
 20     60501    59250    57104    63796    62787    61952    79349   117142   120180   110407    86845    64128

 21     61173    59221    57517    65435    63610    61597    81360   115447   119347   110483    86218    63065
 22     63869    59201    58029    64586    59636    64784    79229   113751   119124   108203    84886    65456
 23     64107    59182    59379    60631    60231    67251    76577   110225   118949   107828    81556    64952
 24     63734    59162    59458    59953    63147    68871    74150   104325   120340   108188    81727    64920
 25     63807    59136    60182    60341    64994    70010    71517   104602   120437   104896    83669    65848

 26     63590    58720    61860    60251    63765    68534    69450   105970   120164   106651    84383    65761
 27     63734    58554    62675    63321    62206    68828    69900   107022   118981   106978    84446    65424
 28     61365    58476    63106    65245    61809    68296    71372   106414   120308   105072    84221    65392
 29     59399    58975    63590    65572    61962    68882    71060   109347   120935   105395    81531    62777
 30     58242    58340    65793    62655      ---    71573    68317   111796   121322   102886    79289    60461
 31     58058      ---    68177    60661      ---    72786      ---   114979      ---   100592    78524      ---

MAX     86987    59379    68177    72088    68469    72786    81360   117189   121921   120822   108323    84082
MIN     58058    56655    53587    59953    54748    61073    68317    68882   117663   100592    78524    60461
 a    8133.27  8133.56  8143.13  8135.91  8137.20  8147.30  8143.26  8178.79  8182.79  8169.15  8152.25  8135.71
 b     -30480     +282    +9837    -7516    +1301   +10824    -4469   +46662    +6343   -20730   -22068   -18063

CAL YR 1995   b   +3905
WTR YR 1996   b  -28077

  a Elevation, in feet, at end of month.
  b Change in contents, in acre-feet.



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