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Water-Year Summary for Site 11404300

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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
11404300 Grizzly Creek below Diversion Dam, near Storrie, CA
LOCATION - Lat 39°53'29", long 121°17'35" referenced to North American Datum of 1927, in SW 1/4 NE 1/4 sec.34, T.24 N., R.6 E., Plumas County, CA, Hydrologic Unit 18020121, Plumas National Forest, on right bank, 0.2 mi downstream from Grizzly Forebay Diversion Dam, and 2.4 mi southeast of Storrie.
DRAINAGE AREA - 14.4 mi².
REVISIONS HISTORY - WDR CA-01-4 (discharge through Bucks Creek Powerplant).
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1985 to current year. Unpublished records for water years 1970, 1976-85 available in files of the U.S. Geological Survey.
GAGE - Water-stage recorder and concrete control with Cipolletti weir. Elevation of gage is 4,320 ft above NGVD of 1929, from topographic map. Prior to Oct. 8, 1987, at datum 1.79 ft higher.
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. 619.
REMARKS - Flow regulated by diversion dam 0.2 mi upstream. There is considerable inflow upstream from the diversion dam from Bucks Creek Tunnel outlet and Grizzly Powerplant (station 11404240). Most of the flow is diverted to Bucks Creek Powerplant on North Fork Feather River. See schematic diagram of North Fork Feather River Basin available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 6,300 ft³/s, Jan. 1, 1997, gage height, 7.33 ft, from rating curve extended above 260 ft³/s, on basis of computation of peak flow over dam, maximum gage height, 9.54 ft, Feb. 17, 1986, datum then in use; minimum daily, 1.9 ft³/s, June 14, 1988.