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Water-Year Summary for Site 11441100

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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
11441100 Ice House Reservoir near Kyburz, CA
LOCATION - Lat 38°49'51", long 120°21'35" referenced to North American Datum of 1927, in SE 1/4 NW 1/4 sec.01, T.11 N., R.14 E., El Dorado County, CA, Hydrologic Unit 18020129, in Eldorado National Forest, in powerplant intake structure near right bank, 0.5 mi north of Ice House Dam on South Fork Silver Creek, and 5.2 mi northwest of Kyburz.
DRAINAGE AREA - 27.2 mi².
REVISIONS HISTORY - WSP 1931: 1960.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1959 to current year.
CHEMICAL ANALYSES: Water year 1996.
GAGE - Water-stage recorder. Datum of gage is NGVD of 1929 (levels by Sacramento Municipal Utility District). Prior to July 15, 1985, at site 0.5 mi downstream at Ice House Dam at same datum.
COOPERATION - Records were collected by Sacramento Municipal Utility District, under general supervision of the U.S. Geological Survey, in connection with Federal Energy Regulatory Commission project no. 2101.
REMARKS - Reservoir is formed by an earthfill dam; storage began Dec. 15, 1959. Contents based on capacity table dated June 2000. Capacity, 43,500 acre-ft at 5,450.0 ft, top of spillway gates. Reservoir is used to store water for power development. Reservoir is also forebay for Jones Fork Powerplant (station 11440900), which diverts up to 350 ft³/s to powerplant completed in April 1985, then to Union Valley Reservoir (station 11441001). Records, including extremes, represent total contents at 2400 hours. See schematic diagram of South Fork American River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum contents, 46,400 acre-ft, June 27, 1971, elevation, 5,450.6 ft; minimum since reservoir first filled, 1,450 acre-ft, Dec. 8, 1983, elevation, 5,347.9 ft.