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USGS Water-Year Summary 2024
08193000 Nueces River near Asherton, TX
LOCATION - Lat 28°30'00", long 99°40'54" referenced to North American Datum of 1927, Dimmit County, TX, Hydrologic Unit 12110103, on right bank 28 ft downstream from bridge on Farm Road 190, 0.1 mi downstream from El Moro Creek, 5.8 mi northeast of Asherton, and at mile 266.0.
DRAINAGE AREA - 4,082 mi².
REVISIONS HISTORY - WSP 1118: 1944.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Oct. 1939 to current year.
PERIOD OF RECORD, Water-quality.--
CHEMICAL DATA: Nov. 1964 to May 1968.
BIOCHEMICAL DATA: Nov. 1964 to May 1968.
GAGE - Water-stage recorder. Datum of gage is 470.532 ft. above NAVD88, 470.92 ft above NGVD of 1929. Prior to Feb. 2, 1940, nonrecording gage at same site and datum. Satellite telemeter at station.
REMARKS - Since Mar. 1948, at least 10% of contributing drainage area has been regulated. Part of the flow of the Nueces River and its headwater tributaries enters the Edwards and associated limestones in the Balcones Fault Zone that crosses the basin between Nueces River at Laguna (station 08190000) and Nueces River below Uvalde (station 08192000). Some loss of flow into various permeable formations occurs downstream from the Balcones Fault Zone. There are many small diversions above station for irrigation. No flow at times. Some records listed in the "Period of Record" for surface water and water quality may not be available electronically.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum stage since at least 1900, 33 ft June 17, 1935; flood of June 30, 1913, reached about same stage, from information by local residents.
EXTREMES FOR PERIOD PRIOR TO REGULATION -
WATER YEARS 1940-1948: Maximum discharge, 24,000 ft³/s Sept. 2, 1944 (gage height 30.40 ft). No flow at times.
AVERAGE DISCHARGE FOR PERIOD PRIOR TO REGULATION - 8 years (water years 1940-48), 140 ft³/s (101,700 acre-ft/yr).
WATER-QUALITY RECORDS
PERIOD OF RECORD -
CHEMICAL DATA: Nov. 1964 to May 1968.
BIOCHEMICAL DATA: Nov. 1964 to May 1968.
