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Water-Year Summary for Site 11316605

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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
11316605 Tiger Creek below Regulator Reservoir, near Pioneer, CA
LOCATION - Lat 38°28'37", long 120°27'11" referenced to North American Datum of 1983, in SW 1/4 NE 1/4 sec.08, T.7 N., R.14 E., Amador County, CA, Hydrologic Unit 18040012, in Eldorado National Forest, on right bank, 200 ft downstream from outlet valve on Regulator Dam, 7.2 mi northeast of Pioneer, and 12.9 mi west of Salt Springs Reservoir.
DRAINAGE AREA - 7.35 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 2001 to current year (low-flow records only).
GAGE - Water-stage recorder and concrete control. Elevation of gage is 3,510 ft above NGVD of 1929, from topographic map.
COOPERATION - Records were collected by Pacific Gas and Electric Co., under general supervision of the U.S. Geological Survey, in connection with Federal Energy Regulatory Commission project no. 137.
REMARKS - No records computed above 50 ft³/s. Flow regulated since 1931 by Salt Springs Reservoir (station 11313500) 18.3 mi upstream. Some water is diverted through Tiger Creek Powerplant Conduit (station 11314000). Additional water is diverted out of Bear River and several smaller tributaries into Tiger Creek Powerplant Conduit. All the water enters the North Fork Mokelumne River at Tiger Creek Powerplant (station 11316610) 0.4 mi downstream. Water is occasionally diverted at the weir for cooling at Tiger Creek Powerplant. See schematic diagram of Mokelumne River Basin available from the California Water Science Center.