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Water-Year Summary for Site 11315000

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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
11315000 Cole Creek near Salt Springs Dam, CA
LOCATION - Lat 38°31'09", long 120°12'42" referenced to North American Datum of 1927, in SW 1/4 NE 1/4 sec.28, T.8 N., R.16 E., Amador County, CA, Hydrologic Unit 18040012, in Eldorado National Forest, on left bank, 200 ft downstream from bridge, 0.3 mi upstream from diversion dam, 1.4 mi north of Salt Springs Dam, 3.2 mi upstream from mouth, and 6.5 mi southwest of Mokelumne Peak.
DRAINAGE AREA - 21 mi².
REVISIONS HISTORY - WSP 1515: 1928, 1930-31, 1938 (instantaneous maximum discharge), 1944, 1947. WSP 1930: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - July 1927 to November 1942, October 1943 to current year. Prior to October 1958, published as "Cold Creek near Mokelumne Peak". October 1958 to September 1960, published as "near Mokelumne Peak".
GAGE - Water-stage recorder and concrete control since Oct. 30, 1974. Elevation of gage is 5,920 ft above NGVD of 1929, from topographic map. Prior to Oct. 30, 1974, at site 0.4 mi upstream at different datum.
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 - Occasional pumping upstream from station for domestic use in summer-home tract began in September 1961. See schematic diagram of Mokelumne River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 6,140 ft³/s, Dec. 23, 1964, gage height, 10.21 ft, site and datum then in use, from rating curve extended above 900 ft³/s, on basis of slope-area measurement at gage height 9.69 ft; no flow for many days in some years.