USGS Water-Year Summary 2023
08211000 Nueces River near Mathis, TX
LOCATION - Lat 28°02'17", long 97°51'36" referenced to North American Datum of 1927, San Patricio County, TX, Hydrologic Unit 12110111, at downstream side of bridge on State Highway 359, 0.6 mi downstream from Wesley E. Seale Dam, 4.0 mi southwest of Mathis, and at mile 46.7.
DRAINAGE AREA - 16,503 mi².
REVISIONS HISTORY - WDR US-2007: Drainage Area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Aug. 1939 to current year.
PERIOD OF RECORD, Water-Quality.--
CHEMICAL DATA: Oct. 1959 to Oct. 1991.
BIOCHEMICAL DATA: Oct. 1959 to Sept. 1973.
PESTICIDE DATA: Sept. 1966, Nov. 1971, Feb. 1989.
RADIOCHEMICAL DATA: Dec. 1980, Feb. 1981 to May 1981.
SEDIMENT DATA: May 2006 to July 2007.
GAGE - Water-stage recorder. Datum of gage is 26.53 ft above NGVD of 1929. Datum of gage is 25.948 ft. above NAVD88. Aug. 5, 1939, to Aug. 29, 1984, on left bank 9.0 ft upstream at datum 1.0 ft higher. Aug. 29 to Nov. 5, 1984, on left bank 9.0 ft upstream at present datum. Nov. 5, 1984, to Aug. 5, 1987, on left bank 154 ft downstream at present datum. Satellite telemeter at station.
EXTREMES OUTSIDE PERIOD OF RECORD - A stage of about 41 ft, present datum, occurred Sept. 20, 1919, from information by Texas and New Orleans Railroad Co. and is the second highest known. Maximum stage since at least 1888, that of Sept. 24, 1967.
WATER-QUALITY RECORDS
PERIOD OF RECORD -
CHEMICAL DATA: Oct. 1947, Oct. 1959 to Oct. 1991.
BIOCHEMICAL DATA: Oct. 1959 to Sept. 1973.
PESTICIDE DATA: Sept. 1966, Nov. 1971, Feb. 1989
RADIOCHEMICAL DATA: Dec. 1980 to May 1981.
SEDIMENT DATA: May 2006 to current year.