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USGS Water-Year Summary 2024
11451290 Indian Valley Reservoir near Clearlake Oaks, CA
LOCATION - Lat 39°04'50", long 122°32'02" referenced to North American Datum of 1927, in SE 1/4 SW 1/4 sec.04, T.14 N., R.6 W., Lake County, CA, Hydrologic Unit 18020116, 8.6 mi northeast of Clearlake Oaks.
DRAINAGE AREA - 120 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - December 2002 to current year. December 2002 to September 2010, stage only.
GAGE - Water-stage recorder. Datum of gage is 2.73 ft above NAVD of 1988.
REMARKS - Reservoir is formed by earth-fill dam; storage began October 1983. Storage capacity is 300,000 acre-ft. Water is released down North Fork Cache Creek for agricultural use.
EXTREMES FOR PERIOD OF RECORD - Maximum contents, 305,000 acre-ft, Apr. 25, 2006, gage height, 1,486.03 ft; minimum contents, 12,200 acre-ft, Dec. 10, 11, 12, 2009, gage height, 1,352.05 ft.
Capacity table (Gage Height in feet and contents in acre-feet) (Based on table provided by Yolo County Flood Control and Water Conservation District, dated November 1970) Gage Height Contents Gage Height Contents Gage Height Contents Gage Height Contents 1,300 16 1,360 18,280 1,420 95,400 1,480 280,800 1,310 190 1,370 25,200 1,430 118,900 1,490 322,000 1,320 995 1,380 34,700 1,440 145,700 1,501 371,000 1,330 2,825 1,390 45,200 1,450 175,300 1,340 6,185 1,400 59,000 1,460 208,400 1,350 10,980 1,410 76,000 1,470 243,200
