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Water-Year Summary for Site 11351950

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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
11351950 Pit River below diversion to Muck Valley Powerplant, near Bieber, CA
LOCATION - Lat 41°00'55", long 121°09'13" referenced to North American Datum of 1927, in NE 1/4 SW 1/4 sec.27, T.37 N., R.7 E., Lassen County, CA, Hydrologic Unit 18020002, on right bank, 1.7 mi upstream from North Gulch, 2.2 mi upstream from Spring Gulch, and 7.4 mi south of Bieber.
DRAINAGE AREA - 2,475 mi². excluding Goose Lake Basin.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1994 to current year.
GAGE - Acoustic-velocity meter measures minimum bypass flow; water-stage recorder and Ogee weir for spillway. Elevation of gage is 4,120 ft above NGVD of 1929, from topographic map.
COOPERATION - Records were provided by Malacha Hydro Limited Partnership, under general supervision of the U.S. Geological Survey, in connection with Federal Energy Regulatory commission project no. 8296.
REMARKS - Records for 2015-18, 2020 water years were not provided or did not meet U. S. Geological Survey requirements and were not published. Flow at this station has two components which are combined for publication: low-flow release (station 11351946) and flow over Ogee weir (station 11351948). Water is diverted upstream of weir through Pit River Tunnel (station 11351945) to Collett Reservoir (station 11351600), for power generation. During powerplant operation, the minimum release is 50 ft³/s. See schematic diagram of Pit River and McCloud River Basins available from the California Water Science Center.
EXTREMES FOR PERIOD OF RECORD - Maximum daily discharge, 16,800 ft³/s, Jan. 3, 1997; no flow many days during most years.