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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
08164300 Navidad River near Hallettsville, TX
LOCATION - Lat 29°28'00", long 96°48'45" referenced to North American Datum of 1927, Lavaca County, TX, Hydrologic Unit 12100102, on right bank at downstream end of bridge on U.S. Highway 90-A, 0.8 mi downstream from Mixon Creek, 1.2 mi southwest of Sublime, and 8.0 mi northeast of Hallettsville.
DRAINAGE AREA - 332 mi².
REVISIONS HISTORY - WSP 2123: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Oct. 1961 to current year.
PERIOD OF RECORD, Water-Quality.--
CHEMICAL DATA: Oct. 1967 to Feb. 1968.
BIOCHEMICAL DATA: Oct. 1967 to Feb. 1968.
GAGE - Water-stage recorder. Datum of gage is 159.257 above NADV 88 done by RTK on Mar. 13, 2024. Datum of gage is 159.28 ft above NGVD of 1929. Satellite telemeter at station. RTK were run on March 13, 2024, with a new Datum of NAVD88 of 158.26 ft.
REMARKS - No known regulation or diversions. 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 1860, 40 ft in June 1940; flood in July 1936 reached a stage of 39 ft, from information by local residents and Southern Pacific Railroad Company.
WATER-QUALITY RECORDS
PERIOD OF RECORD - CHEMICAL DATA: Oct. 1967 to Feb. 1968.
BIOCHEMICAL DATA: Oct. 1967 to Feb. 1968.
