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Water-Year Summary for Site 10287700

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Available Parameters
00054 Reservoir storage(Obs.)  

Water year 2020: 2020-10-01 to 2021-09-30

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USGS Water-Year Summary 2020
10287700 Tioga Lake near Lee Vining, CA
LOCATION - Lat 37°55'41", long 119°15'01" referenced to North American Datum of 1927, in SE 1/4 SE 1/4 sec.19, T.1 N., R.25 E., Mono County, CA, Hydrologic Unit 18090101, in Inyo National Forest, at left abutment of dam, on Glacier Creek, and 7.4 mi west of Lee Vining.
DRAINAGE AREA - 3.67 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 Unpublished records prior to October 1990 available in files of Southern California Edison Co.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 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. 1388.
REMARKS - No record is maintained when the lake is drained and the release valve is completely open. Reservoir is formed on natural lake by rock-fill dam completed in 1928. Contents based on capacity table dated Aug. 19, 1981. Usable capacity, 1,254 acre-ft, between elevations 9,626.72 ft, invert of outlet, and 9,650.28 ft, crest of spillway. Figures given represent usable contents. Water is used for power development downstream.