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Water-Year Summary for Site 11428400

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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
11428400 Little Rubicon River below Buck Island Dam, near Meeks Bay, CA
LOCATION - Lat 39°00'18", long 120°15'19" referenced to North American Datum of 1927, in SW 1/4 NW 1/4 sec.06, T.13 N., R.16 E., El Dorado County, CA, Hydrologic Unit 18020128, in Eldorado National Forest, at outlet structure on Buck Island Diversion Dam, and 7.4 mi southwest of Meeks Bay.
DRAINAGE AREA - 6 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1990 to current year (low-flow records only). Unpublished records for water years 1964-90 available in files of the U.S. Geological Survey.
GAGE - Water-stage recorder and V-notch sharp-crested weir. Elevation of gage is 6,420 ft above NGVD of 1929, from topographic map. Aug. 14, 1964, to Oct. 4, 1973, nonrecording gage at site 60 ft downstream at different datum. Nonrecording gage at present site Oct. 4, 1973, to Aug. 26, 1986, at different datum, and Aug. 27, 1986, to Sept. 30, 1990, 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 - Records not computed above 10 ft³/s. Prior to October 2014, records not computed above 2 ft³/s. Flow regulated by Buck Island Reservoir. Most of the water is diverted at Buck Island Reservoir via Buck-Loon Tunnel (station 11428300) to Loon Lake (station 11429350). Buck Island Lake receives water from Rubicon River via Rubicon-Rockbound Tunnel (station 11427940). See schematic diagram of Middle Fork American and Rubicon River Basins available from the California Water Science Center.