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Water-Year Summary for Site 11295250

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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 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
11295250 Collierville Powerplant near Murphys, CA
LOCATION - Lat 38°08'33", long 120°22'39" referenced to North American Datum of 1927, in NE 1/4 SE 1/4 sec.01, T.3 N., R.14 E., Calaveras County, CA, Hydrologic Unit 18040010, 800 ft upstream from Stanislaus River, and 4.4 mi east of Murphys.
SURFACE-WATER RECORDS
PERIOD OF RECORD - February 1990 to current year.
GAGE - Discharge record is computed from power generation record. Elevation of powerplant is 1,120 ft above NGVD of 1929, from topographic map.
COOPERATION - Records were collected by Northern California Power Agency, under general supervision of the U.S. Geological Survey, in connection with Federal Energy Regulatory Commission project no. 2409.
REMARKS - Flow is diverted from McKays Point Reservoir (station 11295260) through Collierville Tunnel to powerplant. A portion of the flow in the tunnel is diverted to Utica Canal (station 11295240) through a pressure tap near Mill Creek in SW 1/4 SW 1/4 sec.17, T.4 N., R.15 E. See schematic diagram of Stanislaus River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum daily discharge, 1,610 ft³/s, May 8, 2000; no flow for many days most years.