Warning: Javascript must be enabled to use all the features on this page!

Page Loading - Please Wait...

* We've detected you're using a mobile device. Find our mobile dedicated web site here.
Click to hideNews Bulletins
  • Due to a lapse in appropriations, the majority of USGS websites may not be up to date and may not reflect current conditions. Websites displaying real-time data, such as Earthquake and Water and information needed for public health and safety will be updated with limited support. Additionally, USGS will not be able to respond to inquiries until appropriations are enacted. For more information, please see www.doi.gov/shutdown.

  • Please see news on new formats
  • Full News RSS icon

USGS 08170500 San Marcos Rv at San Marcos, TX

  Stream Site

Latitude 29°53'20",   Longitude 97°56'02"   NAD27
Hays County, Texas, Hydrologic Unit 12100203
Drainage area: 48.9 square miles
Contributing drainage area: 48.9 square miles,
Datum of gage: 557.67 feet above   NGVD29.
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    1994-10-01  2019-01-16  
 Daily Data
    Discharge, cubic feet per second  1915-07-01  2019-01-15  22798 
    Gage height, feet  1995-10-01  2019-01-15  20168 
 Daily Statistics 
    Discharge, cubic feet per second  1915-07-01  2018-10-01 10954 
    Gage height, feet  1995-10-01  2018-11-05 8366 
 Monthly Statistics 
    Discharge, cubic feet per second  1915-07  2018-10  
    Gage height, feet  1995-10  2018-11  
 Annual Statistics 
    Discharge, cubic feet per second  1915  2019  
    Gage height, feet  1996  2019  
 Peak streamflow 1995-09-20  2017-04-11  23 
 Field measurements 1993-10-05  2018-12-11  489 
 Field/Lab water-quality samples 1994-08-18  1996-10-18  4 
 Water-Year Summary 2005  2018  14 
 Revisions  Loading...
Record for this site is maintained by the USGS Texas Water Science Center
Email questions about this site to Texas Water Science Center Water-Data Inquiries