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Water-Year Summary for Site 10270700

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00054 Reservoir storage(Obs.)  

Water year 2023: 2022-10-01 to 2023-09-30
 

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USGS Water-Year Summary 2023
10270700 South Lake near Bishop, CA
LOCATION - Lat 37°10'21", long 118°33'52" referenced to North American Datum of 1927, Inyo County, CA, Hydrologic Unit 18090102, unsurveyed, in 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.
SURFACE-WATER RECORDS
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 Unpublished records prior to October 1990 available in files of Southern California Edison Co.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 NGVD of 1929 (levels by Southern California Edison Co.).
COOPERATION - Records collected by Southern California Edison Co., under general supervision of the U.S. Geological Survey, in connection with Federal Energy Regulatory Commission project no. 1394.
REMARKS - Reservoir is formed on natural lake by rock-fill dam completed in 1910. Contents based on capacity table dated Aug. 5, 1981. 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 at 2400 hours. Water is used for power development downstream. See schematic diagram of Bishop Creek Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum contents, 13,040 acre-ft, Jul. 23, 2018, elevation, 9,752.22 ft; no storage on many days in 2013-2015 and 2022.