USGS Water-Year Summary 2020
08109900 Somerville Lake near Somerville, TX
LOCATION - Lat 30°19'20", long 96°31'32" referenced to North American Datum of 1927, Burleson County, TX, Hydrologic Unit 12070102, in intake structure of Somerville Dam on Yegua Creek, at the southwest edge of the city limits of Somerville, and 20.0 mi upstream from mouth.
DRAINAGE AREA - 1,007 mi².
PERIOD OF RECORD - Feb. 1966 to Sept. 2000 (midnight contents furnished by U.S. Army Corps of Engineers), Oct. 2000 to Jan. 2004 (daily mean contents). Oct. 2000 to current year. Prior to Oct. 1970, published as "Somerville Reservoir".
PERIOD OF RECORD, Water-Quality.--
CHEMICAL DATA: Mar. 1970 to Sept. 1977.
BIOCHEMICAL DATA: Mar. 1970 to Sept. 1977.
GAGE - Water-stage recorder. Datum of gage is NGVD of 1929. Satellite telemeter at station.
COOPERATION - Prior to Oct. 1, 2000, record of contents furnished by the U.S. Army Corps of Engineers and reviewed by the U.S. Geological Survey. A new capacity table, provided by Texas Water Development Board, was put into use Oct. 1, 1995.
EXTREMES FOR PERIOD OF RECORD - Feb. 1966 to Sept. 2002: Maximum contents, 547,600 acre-ft, Mar. 6, 1992; minimum contents 88,800 acre-ft, Oct. 5, 1984; Feb. 1966 to current year: maximum elevation, 259.60 ft, Mar. 6, 1992, minimum elevation, 228.26 ft, Sep. 30. 2011.