USGS Water-Year Summary 2024
08202700 Seco Creek at Rowe Ranch near D'Hanis, TX
LOCATION - Lat 29°22'14", long 99°17'15" referenced to North American Datum of 1927, Medina County, TX, Hydrologic Unit 12110107, on left bank 2.9 mi north of D'Hanis and 8.0 mi downstream from Rocky Creek.
DRAINAGE AREA - 168 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - Nov. 1960 to current year.
PERIOD OF RECORD, Water-Quality.--
CHEMICAL DATA: Sept. 1991 to May 1992.
BIOCHEMICAL DATA: Sept. 1991 to May 1992.
BIOLOGICAL DATA: Sept. 1991 to May 1992.
PESTICIDE DATA: Sept. 1991 to May 1993.
SEDIMENT DATA: Sept. 1991 to May 1993.
GAGE - Water-stage recorder. Datum of gage is 901.16 ft above NAVD88; 900.88 ft above NGVD of 1929. Prior to Oct. 1970, published as "at Crook Ranch, near D'Hanis". Satellite telemeter at station.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum stage since at least 1852, 35.7 ft, May 31, 1935, from information by local resident. Other floods occurred Aug. 31, 1894, 33 ft; Sept. 1919, 28 ft; July 2, 1932, 28.2 ft (discharge, 35,800 ft³/s, by slope-area measurement); and June 17, 1958, 32.4 ft.
WATER-QUALITY RECORDS
PERIOD OF RECORD -
CHEMICAL DATA: Sept. 1991 to May 1992.
BIOCHEMICAL DATA: Sept. 1991 to May 1992.
BIOLOGICAL DATA: Sept. 1991 to May 1992.
PESTICIDE DATA: Sept. 1991 to May 1993.
SEDIMENT DATA: Sept. 1991 to May 1993.