10342900  INDEPENDENCE LAKE NEAR TRUCKEE, CA

LOCATION.--Lat 39°27'07", long 120°17'23", in NW 1/4 SW 1/4 sec.35, T.19 N., R.15 E., Sierra County, Hydrologic
   Unit 16050102, on right bank of outlet channel, 60 ft upstream from outlet gates, and 10.5 mi northwest of
   Truckee.

DRAINAGE AREA.--7.51 mi2.

PERIOD OF RECORD.--November 1988 to current year.

GAGE.--Water-stage recorder.  Datum of gage is sea level (levels by Sierra Pacific Power Co.).

REMARKS.--Lake levels regulated by an earthfill dam at the outlet constructed in 1939.  Usable capacity,
   17,300 acre-ft between elevations 6,921.0 ft, invert of outlet gate and 6,949.0 ft, normal maximum storage
   level.  Water is used for irrigation and power development downstream.  Records, including extremes, represent
   usable contents.  See schematic diagram of Truckee River basin.

EXTREMES FOR PERIOD OF RECORD.--Maximum contents, 17,700 acre-ft, Aug. 4, 1995, elevation, 6,949.51 ft; minimum,
   4,750 acre-ft, Nov. 10, 11, 1988, elevation, 6,929.39 ft.

EXTREMES FOR CURRENT YEAR.--Maximum contents, 17,500 acre-ft, Jul. 13, elevation, 6,949.34 ft; minimum,
   12,300 acre-ft, Apr. 7, elevation, 6,941.69 ft.

                         Capacity table (elevation, in feet, and contents, in acre-feet)
                    (Based on table provided by Sierra Pacific Power Co., dated Nov. 5, 1941)

                                   6,921          0           6,940     11,240
                                   6,925      2,220           6,945     14,530
                                   6,930      5,110           6,950     18,000
                                   6,935      8,110


                    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     16600    15600    14900    15200    15300    16100    12600    12700    16200    17400    17000    16000
  2     16600    15600    14800    15200    15300    15900    12500    12800    16400    17500    17000    15900
  3     16500    15500    14800    15200    15300    15700    12500    12900    16500    17500    17000    15900
  4     16500    15500    14800    15200    15600    15600    12400    13000    16700    17500    16900    15800
  5     16500    15500    14800    15100    15900    15500    12400    13000    16800    17500    16900    15800

  6     16400    15400    14800    15100    15900    15300    12400    13100    17000    17500    16900    15700
  7     16400    15400    14800    15100    16000    15100    12300    13100    17100    17500    16900    15700
  8     16400    15400    14800    15100    16000    15000    12400    13200    17200    17500    16900    15600
  9     16300    15400    14700    15100    16000    14800    12400    13300    17300    17500    16800    15600
 10     16300    15300    14700    15000    16000    14600    12400    13300    17400    17500    16800    15600

 11     16300    15300    14900    15000    16000    14500    12400    13400    17400    17500    16800    15500
 12     16200    15300    15500    15000    16000    14400    12400    13500    17400    17500    16800    15400
 13     16200    15300    15500    15000    16100    14200    12400    13700    17400    17500    16800    15400
 14     16200    15300    15500    14900    16100    14000    12400    14000    17300    17500    16800    15300
 15     16100    15200    15500    14900    16100    13800    12400    14500    17300    17400    16700    15300

 16     16100    15200    15500    15000    16200    13600    12500    15200    17300    17400    16700    15300
 17     16100    15200    15500    15000    16200    13500    12500    15900    17300    17300    16700    15300
 18     16000    15100    15500    15100    16400    13300    12500    16200    17400    17300    16600    15300
 19     16000    15100    15500    15100    16500    13200    12500    16300    17300    17300    16600    15200
 20     16000    15100    15400    15100    16600    13000    12400    16500    17300    17300    16600    15200

 21     15900    15000    15400    15100    16700    12900    12400    16600    17300    17300    16500    15100
 22     15900    15000    15400    15100    16700    12900    12400    16600    17300    17300    16500    15100
 23     15900    15000    15400    15100    16700    12800    12400    16400    17400    17300    16500    15000
 24     15800    15000    15300    15300    16700    12800    12400    16300    17400    17200    16400    15000
 25     15800    15000    15300    15300    16700    12700    12400    16200    17400    17200    16400    15000

 26     15800    15000    15300    15300    16600    12700    12400    16200    17400    17200    16300    14900
 27     15800    15000    15300    15400    16600    12700    12500    16100    17400    17100    16200    14900
 28     15700    15000    15200    15400    16500    12700    12500    16000    17400    17100    16200    14900
 29     15700    14900    15200    15300    16300    12600    12500    16000    17400    17100    16200    14800
 30     15700    14900    15200    15300      ---    12600    12600    16000    17400    17100    16100    14800
 31     15600      ---    15200    15300      ---    12500      ---    16100      ---    17100    16000      ---

MAX     16600    15600    15500    15400    16700    16100    12600    16600    17400    17500    17000    16000
MIN     15600    14900    14700    14900    15300    12500    12300    12700    16200    17100    16000    14800
 a    6946.62  6945.51  6946.02  6946.17  6947.52  6941.94  6942.12  6947.27  6949.20  6948.66  6947.21  6945.37
 b      -1000     -700     +300     +100    +1000    -3800     +100    +3500    +1300     -300    -1100    -1200

CAL YR 1995   MAX 17700  MIN 10300  b +4800
WTR YR 1996   MAX 17500  MIN 12300  b -1800

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