10270700 SOUTH LAKE NEAR BISHOP, CA
LOCATION.-Lat 37°10'21", long 118°33'52", unsurveyed, T.9 S., R.31 E., Inyo County, Hydrologic Unit 18090102, Inyo National Forest, near spillway at
right abutment of Hillside Dam on South Fork Bishop Creek and 16.0 mi southwest of Bishop.
DRAINAGE AREA.-12.9 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 Unpublished records prior to October 1990 available in files of Southern California Edison Co.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 1910. Usable capacity, 12,883 acre-ft between elevations 9,621.20 ft, invert of
outlet tunnel, and 9,751.31 ft, crest of spillway. Water is received from Green Creek via Green Creek Conduit (station 10270680). 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, 13,038 acre-ft, Aug. 4, 1993, elevation, 9,752.21 ft; minimum, 280 acre-ft, Apr. 18-25, 1993, elevation,
unknown.
EXTREMES FOR CURRENT YEAR.-Maximum contents, 13,002 acre-ft, Aug. 8, elevation, 9,751.00 ft; minimum, 860 acre-ft, Apr. 27, elevation, 9,637.67 ft.
Capacity table (elevation, in feet, and contents, in acre-feet)
(Based on survey by Southern California Edison Co., dated Aug. 5, 1981)
9,621.2 0 9,690 4,533
9,630 417 9,710 6,654
9,650 1,493 9,730 9,392
9,670 2,820 9,756 13,704
RESERVOIR STORAGE (ACRE-FEET), WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
DAILY OBSERVATION AT 2400 HOURS
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 12011 9985 7958 6395 4842 3816 2113 e915 1399 6513 12527 12876
2 11979 9914 7915 6337 4817 3769 2047 926 1473 6806 12556 12886
3 11949 9826 7858 6279 4776 3724 1970 939 1546 7105 12613 12857
4 11910 9755 7797 6222 4732 3679 1899 954 1598 7367 12673 12891
5 11865 9685 7760 6166 4697 3633 e1822 e964 1660 7609 12739 12905
6 11793 9609 7712 6123 4667 3590 e1754 e975 1729 7844 12857 12908
7 11747 9537 7666 6072 4640 3554 e1680 e986 1818 8081 12959 12888
8 11684 9463 7619 6024 4608 3513 e1607 e997 1879 8393 13002 12864
9 11611 9395 7568 5968 4582 3470 e1541 e1008 1964 8668 12999 12838
10 11523 9321 7522 5917 4551 3430 e1476 e1019 2061 8963 12974 12806
11 11443 9252 7476 5869 4509 3393 e1399 e1030 2107 9193 12959 12742
12 11407 9187 7431 5816 4467 3351 e1330 1052 2204 9400 12967 12687
13 11352 9115 7382 5766 4434 3309 e1289 1060 2256 9610 12964 12618
14 11298 9044 7332 5719 4390 3265 e1261 1067 2320 9798 12960 12542
15 11245 8969 7280 5675 4348 3227 e1227 1072 2436 9993 12955 12489
16 11171 8913 7235 5627 4315 3183 e1198 1072 2531 10219 12959 12482
17 11110 8846 7185 5577 4270 3141 e1159 1078 2623 10468 12945 12469
18 11052 8775 7124 5530 4233 3095 e1126 1083 2718 10765 12934 12448
19 11001 8713 7070 5472 4194 3055 e1093 1090 2819 11034 12921 12429
20 10980 8643 7021 5427 4156 2995 e1055 1100 2914 11298 12903 12405
21 10958 8578 6959 5384 4115 2919 e1027 1107 3003 11579 12883 12383
22 10772 8515 6907 5337 4076 2849 e989 1121 3500 11843 12864 12361
23 10661 8447 6861 5289 4046 2772 e951 e1140 3972 12097 12826 12322
24 10586 8381 6797 5237 4010 2704 892 e1168 4363 12265 12824 12294
25 10528 8318 6745 5191 3975 2639 898 e1190 4738 12323 12850 12270
26 10468 8269 6700 5136 3936 2574 872 e1215 5117 12344 12858 12226
27 10393 8209 6655 5087 3899 2487 860 e1241 5430 12344 12853 12204
28 10316 8151 6636 5038 3854 2405 865 1262 5692 12373 12846 12172
29 10186 8085 6636 4980 --- 2333 875 1280 5967 12422 12841 12141
30 10113 8010 6503 4936 --- 2263 e902 1309 6240 12467 12855 12118
31 10057 --- 6452 4884 --- 2189 --- 1343 --- 12498 12865 ---
MAX 12011 9985 7958 6395 4842 3816 2113 1343 6240 12498 13002 12908
MIN 10057 8010 6452 4884 3854 2189 860 915 1399 6513 12527 12118
a 9733.26 9719.70 9707.23 9692.54 9681.59 9660.17 9646.44 9705.33 9748.08 9750.21 9745.85
b -2010 -2047 -1558 -1568 -1030 -1665 -1287 +441 +4897 +6258 +367 -747
CAL YR 1997 MAX 13007 MIN 1089 b -2470
WTR YR 1998 MAX 13002 MIN 860 b +51
e Estimated.
a Elevation, in feet, at end of month.
b Change in contents, in acre feet.
USGS Water Resources of California
Contact:
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Last modified: Wed Aug 4 09:40:26 PDT 1999