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Water-Year Summary for Site 08207500

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

Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023
08207500 Atascosa River near McCoy, TX
LOCATION - Lat 28°51'53", long 98°20'17" referenced to North American Datum of 1927, Atascosa County, TX, Hydrologic Unit 12110110, on left bank at downstream side of bridge on Farm Road 541, 0.6 mi northeast of McCoy, and 40.2 mi upstream from mouth.
DRAINAGE AREA - 530 mi².
PERIOD OF RECORD - July 1951 to Sept. 1956 (daily mean discharge below 100 ft³/s), Oct. 1956 to Sept. 1957 (daily mean discharge below 74 ft³/s), Aug. 2002 to current year.
GAGE - Water-stage recorder. Datum of gage is 272.4 ft above NGVD of 1929. July 1951 to Sept. 1957, water-stage recorder at site 2.2 mi downstream at datum 29.3 ft. lower. Satellite telemeter at station.
REMARKS - Water year records fair.