10270870 LAKE SABRINA NEAR BISHOP, CA
LOCATION.-Lat 38°12'44", long 118°36'42", unsurveyed, T.8 S., R.31 E., Inyo County, Hydrologic Unit
18090102, Inyo National Forest, in valve house, at base of dam, on Middle Fork Bishop Creek, and 15.8 mi
southwest of Bishop.
DRAINAGE AREA.-16.5 mi2.
PERIOD OF RECORD.-October 1990 to current year. Unpublished records prior to October 1990 available in files of
Southern California Edison Co.
GAGE.-Water-stage recorder. Datum of gage is sea level (levels by Southern California Edison Co.).
REMARKS.-Reservoir is formed on natural lake by rock-fill dam completed in 1908. Usable capacity, 7,350 acre-ft,
between elevations 9,068.42 ft, invert of outlet, and 9,131.62 ft, crest of spillway. Figures given represent
usable contents. Water is used for power development downstream. See schematic diagram of Bishop Creek Basin.
COOPERATION.-Records collected by Southern California Edison Co., under general supervision of the U.S.
Geological Survey, in connection with a Federal Energy Regulatory Commission project. Contents not rounded to
U.S. Geological Survey standards.
EXTREMES FOR PERIOD OF RECORD.-Maximum contents, 7,598 acre-ft, July 10, 1995, elevation, 9,132.89 ft; minimum,
no storage
Apr. 8-14, 1994.
EXTREMES FOR CURRENT YEAR.-Maximum contents, 7,399 acre-ft, July 15, elevation, 9,131.87; minimum, 631 acre-ft,
May 5, elevation, 9090.66 ft.
Capacity table (elevation, in feet, and contents, in acre-feet)
(Based on survey by Southern California Edison Co., dated Aug. 12, 1981)
9,068.42 0 9,100 1,926
9,070 1 9,110 3,501
9,080 15 9,120 5,196
9,090 558 9,135 7,912
RESERVOIR STORAGE (ACRE-FEET), WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
DAILY OBSERVATION AT 2400 HOURS
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 6899 6031 4422 3084 2118 1512 766 687 3232 7206 7088 6739
2 6884 5958 4382 3038 2094 1492 754 683 3379 7276 7096 6714
3 6859 5802 4339 2991 2074 1459 744 670 3466 7344 7097 6687
4 6834 5681 4292 2943 2048 1409 731 644 3527 7354 7097 6657
5 6725 5601 4260 2901 2042 1382 724 631 3562 7355 7082 6626
6 6727 5549 4207 2854 2024 1353 714 633 3598 7355 7067 6592
7 6748 5492 4165 2791 2011 1324 707 665 3633 7355 7048 6562
8 6718 5451 4125 2747 1988 1297 697 696 3689 7365 7021 6528
9 6680 5404 4084 2696 1982 1269 685 722 3740 7367 7001 6496
10 6634 5363 4042 2653 1944 1242 675 755 3795 7367 7001 6468
11 6581 5319 4002 2607 1927 1215 666 824 3878 7367 6997 6436
12 6505 5275 3959 2557 1909 1190 659 920 3989 7367 6990 6404
13 6505 5229 3927 2531 1896 1165 650 1006 4148 7357 6961 6376
14 6492 5185 3875 2502 1873 1139 644 1078 4344 7369 6936 6346
15 6455 5142 3830 2476 1852 1114 642 1109 4565 7399 6915 6314
16 6415 5096 3795 2445 1833 1088 637 1148 4776 7381 6901 6279
17 6374 5048 3753 2419 1814 1065 636 1210 4984 7355 6882 6249
18 6333 5001 3712 2399 1792 1040 634 1295 5201 7320 6871 6218
19 6292 4954 3669 2373 1763 1010 649 1389 5432 7279 6854 6190
20 6253 4909 3619 2357 1744 985 660 1489 5665 7229 6836 6158
21 6214 4876 e3577 2332 1720 955 672 1589 5871 7186 6821 6132
22 6192 4821 3535 2309 1697 924 685 1694 6046 7146 6808 6120
23 6179 4775 3493 2289 1672 896 692 1792 6227 7107 6796 6092
24 6164 4723 3451 2284 1648 873 697 1909 6413 7076 6781 6079
25 6155 4679 3414 2267 1619 854 700 2030 6592 7051 6775 6063
26 6142 4632 3369 2254 1591 845 710 2182 6739 7032 6777 6042
27 6138 4586 3325 2231 1565 832 711 2346 6854 7040 6783 6020
28 6121 4545 3278 2205 1540 822 709 2542 6957 7049 6785 5995
29 6103 4504 3234 2182 --- 811 700 2727 7040 7053 6785 5969
30 6074 4458 3182 2163 --- 801 697 2898 7123 7063 6775 5944
31 6053 --- 3140 2142 --- 781 --- 3063 --- 7067 6760 ---
MAX 6899 6031 4422 3084 2118 1512 766 3063 7123 7399 7097 6739
MIN 6053 4458 3140 2142 1540 781 634 631 3232 7032 6760 5944
a 9124.79 9115.72 9107.79 9101.44 9097.37 9091.83 9091.20 9107.32 9130.45 9130.16 9128.56 9124.19
b -864 -1595 -1318 -998 -602 -759 -84 +2366 +4060 -56 -307 -816
CAL YR 1998 MAX 7541 MIN 802 b -200
WTR YR 1999 MAX 7399 MIN 631 b -973
e Estimated.
USGS Water Resources of California
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