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Water-Year Summary for Site 11427940

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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
11427940 Rubicon-Rockbound Tunnel near Meeks Bay, CA
LOCATION - Lat 38°59'16", long 120°13'29" referenced to North American Datum of 1927, in NE 1/4 SE 1/4 sec.08, T.13 N., R.16 E., El Dorado County, CA, Hydrologic Unit 18020128, in Eldorado National Forest, on right bank at tunnel intake, 100 ft upstream from diversion dam on Rubicon River, 3.5 mi upstream from Rubicon Springs, and 6.4 mi southwest of Meeks Bay.
SURFACE-WATER RECORDS
PERIOD OF RECORD - December 1963 to September 2015 (discontinued).
GAGE - Water-stage recorder. Datum of gage is 6,533.23 ft above NGVD of 1929 (levels by Sacramento Municipal Utility District). Auxiliary water-stage recorder since Aug. 26, 1966, 220 ft downstream from tunnel outlet at different 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 - Tunnel diverts water from Rubicon River to Rockbound Lake which flows into Buck Island Lake. Water is then diverted via Buck-Loon Tunnel (station 11428300) to Loon Lake (station 11429350) for power development. See schematic diagram of Middle Fork American and Rubicon River Basins available from the California Water Science Center.