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Water-Year Summary for Site 11367740

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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
11367740 Lake McCloud near McCloud, CA
LOCATION - Lat 41°08'06", long 122°04'26" referenced to North American Datum of 1927, in SE 1/4 SW 1/4 sec.22, T.38 N., R.2 W., Shasta County, CA, Hydrologic Unit 18020004, Shasta National Forest, on McCloud Dam near spillway on McCloud River, 200 ft downstream from Panther Creek, and 8.8 mi southeast of McCloud.
DRAINAGE AREA - 403 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1965 to current year (monthend contents only from October 1965 to September 2013).
GAGE - Water-stage recorder. Datum of gage is NGVD of 1929 (levels by Pacific Gas and Electric Co.).
COOPERATION - Record of contents collected by Pacific Gas and Electric Co., under general supervision of the U.S. Geological Survey, in connection with a Federal Energy Regulatory Commission project no 2106. Contents not rounded to U.S. Geological Survey standards prior to water year 2003.
REMARKS - Reservoir is formed by a rock-fill dam completed in 1965. Usable capacity, 31,197 acre-ft, between elevations 2,472.42 ft, invert of sluice pipe, and 2,680.00 ft, maximum operational water surface. No dead storage. Water is diverted from Lake McCloud (station 11367740) through a diversion tunnel to Iron Canyon Reservoir (station 11363920) and then into the Pit River via James B. Black Powerplant (station 11363910). Figures given represent total contents. Water is used for power generation and recreation. See schematic diagram of Pit River and McCloud River Basins available from the California Water Science Center. Contents based on Capacity Table # 2, dated 2008.
EXTREMES FOR PERIOD OF RECORD - (at 2400 hours) Maximum contents, 35,967 acre-ft, Jan. 15, 1974, elevation, 2,681.40 ft; minimum since reservoir first filled, 13,017 acre-ft, Oct. 14-22, 1981, elevation, 2,632.50 ft.