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Water-Year Summary for Site 11230520

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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
00060 Discharge(Mean)  

Water year 2020: 2019-10-01 to 2020-09-30

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USGS Water-Year Summary 2020
11230520 Bear Creek Conduit near Lake Thomas A. Edison, CA
LOCATION - Lat 37°20'10", long 118°58'28" referenced to North American Datum of 1927, Fresno County, CA, Hydrologic Unit 18040006, unsurveyed, in Sierra National Forest, on right bank, at diversion dam, 2.2 mi east of Mono Hot Springs, and 2.5 mi south of Lake Thomas A. Edison.
PERIOD OF RECORD - October 1986 to current year.
GAGE - Water-stage recorder. Elevation of gage is 7,340 above NGVD of 1929. During frequent periods of indefinite stage-discharge relation, discharge computed as difference between flows at Bear Creek near Lake Thomas E. Edison (station 11230500) and Bear Creek below diversion dam (station 11230530).
COOPERATION - Records were collected by Southern California Edison Co., under general supervision of the U.S. Geological Survey, in connection with Federal Energy Regulatory Commission project nos. 67 and 120.
REMARKS - Conduit diverts at diversion dam on Bear Creek to Ward Tunnel and Huntington Lake (station 11236000) via Portal Powerplant (station 11235500) for further power development in Big Creek powerplants. See schematic diagram of upper San Joaquin River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum daily discharge, 537 ft³/s, May 29, 2003; no flow at times in most years.