10338400 DONNER LAKE NEAR TRUCKEE, CA 

LOCATION.-Lat 39°19'30", long 120°16'53", in SE 1/4 NW 1/4 sec.14, T.17 N., R.15 E., Nevada County, Hydrologic Unit 16050102, on north 
  shore, 2.5 mi upstream from outlet gates and 4.9 mi west of Truckee. 
DRAINAGE AREA.-14.0 mi2. 
PERIOD OF RECORD.-January 1989 to current year. 
GAGE.-Water-stage recorder. Datum of gage is sea level (levels by Westpac Utilities). 
REMARKS.-Lake levels regulated by a concrete dam at the outlet constructed in 1928. Usable capacity, 9,490 acre-ft between elevations 5,923.8 
  and 5,935.8 ft, 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, 12,800 acre-ft, Jan. 2, 1997, elevation, 5,938.64 ft; minimum, 2,510 acre-ft, 
  Jan. 24, 28-31, 1991, elevation, 5,927.23 ft. 
EXTREMES FOR CURRENT YEAR.-Maximum contents, 12,800 acre-ft, Jan. 2, elevation, 5,938.64 ft; minimum, 3,100 acre-ft, Nov. 16, 
  elevation, 5,927.98 ft. 
  Capacity table (elevation, in feet, and contents, in acre-feet)
  (Based on table provided by Westpac Utilities, dated Aug. 22, 1980)
	5,923.8	0	5,934	7,970
	5,926.0	1,600	5,936	9,670
	5,928.0	3,120	5,938	12,000
	5,930.0	4,690	5,940	14,700
	5,932	6,310	

                   RESERVOIR STORAGE (ACRE-FEET), WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997

                                        DAILY OBSERVATION AT 2400 HOURS
 
DAY       OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP
 
  1      5230     3460     3640    10300     4090     3590     4370     6240     9350     9210     8920     8500
  2      5130     3420     3620    12800     4070     3610     4420     6230     9340     9210     8920     8420
  3      5050     3380     3590    11600     4030     3590     4250     6260     9400     9220     8900     8410
  4      4940     3330     3710    10300     4000     3560     4160     6290     9610     9210     8920     8380
  5      4860     3290     4340     9280     3940     3510     4120     6330     9620     9210     8910     8360
 
  6      4790     3270     4380     8440     3910     3530     4090     6360     9590     9210     8880     8350
  7      4710     3240     4340     7670     3850     3510     4080     6440     9470     9250     8880     8320
  8      4610     3230     4260     7010     3840     3510     4050     6630     9440     9220     8870     8320
  9      4540     3220     4310     6440     3810     3550     4060     6880     9400     9190     8840     8310
 10      4460     3190     4500     5970     3770     3570     4030     7130     9340     9230     8830     8280
 
 11      4380     3180     4810     5590     3760     3620     3970     7380     9300     9190     8830     8250
 12      4310     3170     5440     5280     3720     3620     3970     7670     9280     9180     8880     8160
 13      4250     3130     5520     5010     3710     3650     3940     7880     9300     9180     8920     7990
 14      4180     3130     5340     4810     3670     3670     3970     8040     9310     9170     8830     7850
 15      4120     3120     5120     4660     3670     3720     4020     8120     9330     9150     8860     7710
 
 16      4030     3100     4930     4510     3660     3780     4100     8170     9310     9190     8860     7570
 17      4000     3480     4740     4380     3680     3810     4190     8230     9290     9120     8820     7360
 18      3950     3820     4570     4270     3670     3860     4370     8280     9270     9120     8830     7170
 19      3920     3850     4430     4170     3670     3890     4760     8320     9240     9120     8740     7060
 20      3860     3860     4360     4170     3650     3940     4900     8450     9240     9120     8710     6910
 
 21      3820     3910     4430     4150     3660     4000     5160     8550     9260     9100     8710     6750
 22      3770     4010     4380     4430     3630     4060     5330     8650     9230     9060     8690     6600
 23      3730     4000     4300     4350     3610     4120     5720     8810     9250     9070     8650     6470
 24      3690     3960     4190     4300     3600     4200     5800     8920     9230     9040     8630     6330
 25      3690     3900     4110     4420     3630     4270     5860     9020     9210     9040     8620     6160
 
 26      3590     3820     4190     4530     3590     4370     5940     9080     9220     9060     8590     5960
 27      3600     3760     4250     4430     3610     4440     6100     9150     9230     9090     8580     5790
 28      3550     3690     4170     4350     3590     4480     6210     9220     9210     9040     8550     5650
 29      3590     3640     4430     4270      ---     4490     6220     9290     9210     8990     8530     5480
 30      3550     3590     5200     4190      ---     4460     6240     9310     9210     8980     8570     5300
 31      3490      ---     6390     4130      ---     4460      ---     9330      ---     8940     8580      ---
 
MAX      5230     4010     6390    12800     4090     4490     6240     9330     9620     9250     8920     8500
MIN      3490     3100     3590     4130     3590     3510     3940     6230     9210     8940     8530     5300
 a    5928.50  5928.62  5932.10  5929.31  5928.63  5929.72  5931.92  5935.62  5935.48  5935.16  5934.73  5930.77
 b      -1840     +100    +2800    -2260     -540     +870    +1780    +3090     -120     -270     -360    -3280

CAL YR 1996   MAX  9700  MIN 3100  b +2840
WTR YR 1997   MAX 12800  MIN 3100  b   -30