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Water-Year Summary for Site 11416590

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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
00054 Reservoir storage(Ins.,Obs.)  

Water year 2023: 2022-10-01 to 2023-09-30
 

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USGS Water-Year Summary 2023
11416590 Lower Rock Lake near Graniteville, CA
LOCATION - Lat 39°25'43", long 120°37'18" referenced to North American Datum of 1927, in SW 1/4 NW 1/4 sec.15, T.18 N., R.12 E., Nevada County, CA, Hydrologic Unit 18020125, in Tahoe National Forest, on outlet structure on Lower Rock Lake Dam on Texas Creek, and 6.4 mi east of Graniteville.
DRAINAGE AREA - 0.36 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1999 to current year. Unpublished records for water years 1966-99 available in the files of the U.S. Geological Survey.
GAGE - Water-stage recorder. Prior to April 2015, nonrecording gage observed intermittently during the summer months. Elevation of gage is 6,622 ft above NGVD of 1929, from topographic map.
COOPERATION - Records were collected by Pacific Gas and Electric Company, under general supervision of the U.S. Geological Survey, in connection with Federal Energy Regulatory Commission project no. 2310.
REMARKS - Records not computed during the winter months. Lake is formed by earth-fill dam completed in 1855. Contents based on capacity table dated April 1965. Usable capacity, 48 acre-ft, between elevation 6,617.3 ft, invert of outlet valve, and 6,625.8 ft, crest of spillway. Figures given represent usable contents. See schematic of South Yuba River Basin available from the California Water Science Center.