USGS Water-Year Summary 2021
08017400 Lake Tawakoni near Wills Point, TX
LOCATION - Lat 32°48'31", long 95°55'10" referenced to North American Datum of 1927, Rains County, TX, Hydrologic Unit 12010001, in stairwell at left end of spillway of Iron Bridge Dam on Sabine River, 750 ft upstream from bridge on Farm Road 47, 3.8 mi upstream from McBee Creek, 9.0 mi northeast of Wills Point, and at mile 514.5.
DRAINAGE AREA - 756 mi².
PERIOD OF RECORD - Oct. 1960 to current year.
PERIOD OF RECORD, Water-Quality.--
CHEMICAL DATA: Dec. 1961 to Apr. 1984.
BIOCHEMICAL DATA: Dec. 1961 to June 1973.
RADIOCHEMICAL DATA: May 1981.
GAGE - Water-stage recorder. Datum of gage is NGVD of 1929. Satellite telemeter at station.
COOPERATION - Capacity Table No. 1, based on a 1984 survey was prepared by Forrest and Cotton, Inc., Consulting Engineers, for Sabine River Authority. Table No. 1 was replaced with Table No. 2, provided by the Texas Water Development Board from a survey conducted in Apr. 1997, and put into use Oct. 1, 2000. Capacity Table No. 3, a 0.61 ft. extension of Capacity Table No. 2 was put into use Feb. 16, 2017. Capacity Table No. 4, based on a survey by the Texas Water Development Board, was put into use Jan. 1, 2021.
EXTREMES FOR PERIOD OF RECORD - Maximum contents, 1,130,400 acre-ft, May 1, 1966, elevation, 442.58 ft; minimum contents since lake first filled in May 1965, 489,500 acre-ft, Dec. 28,29, 2006, elevation, 424.88 ft.