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Water-Year Summary for Site 11401050

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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
11401050 Butt Valley Reservoir near Caribou, CA
LOCATION - Lat 40°06'59", long 121°08'42" referenced to North American Datum of 1927, in SE 1/4 SW 1/4 sec.12, T.26 N., R.7 E., Plumas County, CA, Hydrologic Unit 18020121, on center intake tower in Butt Valley Reservoir, 2.5 mi north of Caribou, and 5.4 mi southwest of Canyon Dam.
DRAINAGE AREA - 83.5 mi².
REVISIONS HISTORY - WDR CA-00-4 (discharge through Caribou Powerplants).
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1985 to current year. Unpublished records for water years 1983-85 available in files of the U.S. Geological Survey.
GAGE - Water-stage recorder. Datum of gage is 10.23 ft below NGVD of 1929 (levels by Great Western Power Co.).
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. 2105.
REMARKS - Lake is formed by earth-fill dam. Storage began in 1924. Contents based on capacity table dated 1924. Usable capacity, 49,900 acre-ft, between elevations 4,075.9 ft, invert of outlet tunnel, and 4,132.1 ft, crest of spillway. Water is diverted by tunnel and penstock to Caribou Powerplants (station 11401110). Figures given, including extremes, represent total contents at 2400 hours. See schematic diagram of North Fork Feather River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum contents, 52,667 acre-ft, Feb. 18, 19, 1986, elevation, 4,133.80 ft; minimum, 4,284 acre-ft, Mar. 3, 1997, elevation, 4,094.95 ft.