USGS Water-Year Summary 2020
11371700 Whiskeytown Lake near Igo, CA
LOCATION - Lat 40°37'03", long 122°31'31" referenced to North American Datum of 1927, in SE 1/4 NE 1/4 sec.22, T.32 N., R.6 W., Shasta County, CA, Hydrologic Unit 18020112, in Whiskeytown-Shasta-Trinity National Recreation Area, at outlet works to Spring Creek Powerplant on Clear Creek, 1.8 mi downstream from Whiskey Creek, and 7.8 mi northeast of Igo.
DRAINAGE AREA - 200 mi².
PERIOD OF RECORD - May 1963 to current year. Prior to October 1964 published as "Whiskeytown Reservoir near Igo".
GAGE - Water-stage recorder. Datum of gage is NGVD of 1929 (levels by U.S. Bureau of Reclamation). Contents based on capacity table dated April 1962 provided by U.S. Bureau of Reclamation.
COOPERATION - Records were provided by U.S. Bureau of Reclamation, not rounded to U.S. Geological Survey standards.
EXTREMES FOR PERIOD OF RECORD - (at 2400 hours) Maximum contents, 258,600 acre-ft, Mar. 2, 1983, elevation, 1,215.34 ft; minimum since first filling, 145,562 acre-ft, Dec. 27, 1992, elevation, 1,176.05 ft.