USGS Water-Year Summary for Site 08188500

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	Available Parameters
	00045 Precipitation(Sum)
	00060 Discharge(Mean,Max.,Min.)
	00065 Gage height(Mean)

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Water year 2024: 2024-10-01 to 2025-09-30

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USGS Water-Year Summary 2024

08188500 San Antonio River at Goliad, TX

LOCATION - Lat 28°38'57.43", long 97°23'05.49" referenced to North American Datum of 1983, Goliad County, TX, Hydrologic Unit 12100303, on right bank at upstream end of bridge on U.S. Highway 183, 1.2 mi southeast of courthouse in Goliad, 11.7 mi upstream from Manahuilla Creek, and 66.5 mi upstream from mouth.

DRAINAGE AREA - 3,921 mi².

REVISIONS HISTORY - WSP 1923: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - June 1924 to Mar. 1929, Feb. 1939 to current year. PERIOD OF RECORD, Water-Quality.-- CHEMICAL DATA: Dec. 1941 to Dec. 1942, Nov. 1944 to Sept. 1946, Sept. 1958 to Sept. 1996, Dec. 2006 to Oct. 09, 2007. BIOCHEMICAL DATA: Jan. 1968 to Sept. 1996. PESTICIDE DATA: Jan. 1968 to May 1982. SEDIMENT DATA: Apr. 1959, Oct. 1974 to Aug. 1994. RADIOCHEMICAL DATA: Dec. 2006 to Oct. 09, 2007.

GAGE - Water-stage recorder. Datum of gage is 91.08 ft above NGVD of 1929. Prior to Mar. 31, 1929, nonrecording gage at Texas and New Orleans Railroad Co. bridge 1.1 mi upstream at same datum. Satellite telemeter at station.

REMARKS - Since installation of gage in 1924, at least 10% of contributing drainage area has been regulated. There are many diversions above station. Some records listed in the "Period of Record" for surface water and water quality may not be available electronically.

EXTREMES OUTSIDE PERIOD OF RECORD - Floods in Oct. 1913 and June 15, 1935, reached about the same stage as flood in 1942. Maximum stage since about 1800 occurred in 1869 and was several feet higher than flood of Sept. 23, 1967. Maximum stage since 1869, that of Sept. 23, 1967. Flood of July 9, 1942, reached a stage of 44.9 ft.

CLIMATOLOGICAL RECORDS

PERIOD OF RECORD - PRECIPITATION DATA: Oct. 2021 to present.

INSTRUMENTATION - Unshielded, standard 8-in. diameter, tipping-bucket raingage, mounted above the top of the gage shelter 10 ft. above land surface, with satellite telemeter. Datum of gage is 89.34 ft above NGVD of 1929.

WATER-QUALITY RECORDS

PERIOD OF RECORD - CHEMICAL DATA: Dec. 1941 to Dec. 1942, Nov. 1944 to Sept. 1946, Sept. 1958 to Sept. 1996, Dec. 2006 to Oct. 09, 2007. (discontinued). BIOCHEMICAL DATA: Jan. 1968 to Sept. 1996. PESTICIDE DATA: Jan. 1968 to May 1982. SEDIMENT DATA: Apr. 1959, Oct. 1974 to Aug. 1994. RADIOCHEMICAL DATA: Dec. 2006 to Oct. 09, 2007. (discontinued).

REMARKS - Water-quality data collected at this location are associated with Investigations Project: Surface Water - Ground Water Interaction in the Lower San Antonio River Watershed. Water-quality data collection began in Water Year 2007 and was discontinued in Water Year 2008, as noted above in the Period of Record.