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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
11451300 North Fork Cache Creek near Clearlake Oaks, CA
LOCATION - Lat 39°04'32", long 122°31'59" referenced to North American Datum of 1927, in SE 1/4 NW 1/4 sec.09, T.14 N., R.6 W., Lake County, CA, Hydrologic Unit 18020116, on right bank, 1,900 ft downstream from Indian Valley Dam, and 8 mi northeast of Clearlake Oaks.
DRAINAGE AREA - 121 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1983 to September 1985 (operated as a low-flow station only), October 1985 to September 2009 (daily). October 2009 to 2013 (operated as stage only). October 2013 to current year.
CHEMICAL DATA: Water year 2000.
SEDIMENT DATA: Water year 2000.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 1,274.25 ft above NAVD of 1988. Recording rain gage (station 390500122321601) located on top of Indian Valley Dam.
REMARKS - Flow completely regulated by Indian Valley Reservoir, capacity 300,000 acre-ft. See schematic diagram of lower Sacramento River Basin available from the California Water Science Center.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Jan. 26, 1983, reached a stage of 12.74 ft, present datum, discharge about 9,500 ft³/s.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 7,950 ft³/s, Feb. 11, 1998, gage height, 10.61 ft, maximum gage height, 10.62 ft, Jan. 2, 1997; minimum daily, 0.37 ft³/s, Oct. 15, 1994.
