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Water-Year Summary for Site 08171350

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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.
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Available Parameters
00060 Discharge(Max.,Min.,Mean)  

Water year 2022: 2021-10-01 to 2022-09-30

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USGS Water-Year Summary 2022
08171350 Blanco River at San Marcos, TX
LOCATION - Lat 29°52'46.24", long 97°54'38.71" referenced to North American Datum of 1983, Hays County, TX, Hydrologic Unit 12100203,
PERIOD OF RECORD - Jan. 2015 to current year.

Water-stage recorder. Datum of gage is 542.97 ft above NAVD of 1988. Satellite telemeter at station.


Records rated fair. 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.