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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
08183200 San Antonio River near Floresville, TX
LOCATION - Lat 29°06'36", long 98°10'28" referenced to North American Datum of 1983, Wilson County, TX, Hydrologic Unit 12100303, on right bank at upstream side of bridge on Hwy 97, 2.0 mi southwest of Floresville, and at mile 175.8.
DRAINAGE AREA - 1,964 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - Jan. 2006 to current year.
GAGE - Water stage recorder. Datum of gage is 327.455 ft. above NAVD of 1988. The NAVD of 1988 datum was determined by a level 2 GNSS survey (Reference Frame NAD_83 (2011) (EPOCH:2010.0000). (GEOID18) by USGS on December 18,2024 and tied to TBM. Prior to December 18, 2024, the datum of gage was 327.687 ft. Satellite telemeter at station. Some records listed in the "Period of Record" for surface water and water quality may not be available electronically.
REMARKS - Since installation of gage in Jan. 2006, at least 10% of contributing drainage area has been regulated. Some diversions for municipal uses and irrigation above station (amount unknown). Some records listed in the "Period of Record" for surface water and water quality may not be available electronically.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - Oct. 2010 to Current
INSTRUMENTATION - Unshielded, standard 8-in. diameter tipping-bucket raingage, mounted 3 ft above the gage shelter, with satellite telemetry. Datum of gage is 327.69 ft. above NAVD 88.
