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Important for you to know:

  • New to WDFN: see current water conditions throughout the state using the new State Pages. Filter by continuous data type and age of data, view latest values, and link to graphing options to explore the data further. To learn more, read our announcement on the Water Data for the Nation blog.
Important Legacy real-time page

USGS Parameter Group Data Types Start Date End Date
Information Water-quality 1994-08-18 1996-10-18
Inorganics, Major, Metals Water-quality 1994-08-18 1996-10-18
Inorganics, Major, Non-metals Water-quality 1994-08-18 1996-10-18
Inorganics, Minor, Non-metals Water-quality 1994-08-18 1996-10-18
Inorganics, Minor, metals Water-quality 1994-08-18 1996-10-18
Nutrient Water-quality 1994-08-18 1994-08-18
Organics, PCBs Water-quality 1994-08-18 1994-08-18
Organics, other Water-quality 1994-08-18 1994-08-18
Organics, pesticide Water-quality 1994-08-18 1994-08-18
Physical Daily Values, Unit Values, Water-quality 1915-07-01 2024-11-21
n/a Peak Measurements 1995-09-20 2023-04-21
n/a Site Visits 1993-10-05 2024-11-06
n/a USGS Annual Water Data Reports Site 2005-01-01 2024-01-01
Water Data for the Nation inventory

Monitoring location 08170500 is associated with a Stream in Hays County, Texas. Current conditions of Discharge and Gage height are available. Water data back to 1915 are available online.

The elevation of this station has been determined to be 557.67 feet above NAVD 1988. To obtain stream water-surface elevation values in NAVD 1988 add 557.67 feet to gage height values.
Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
08170500 n/a
Site name
San Marcos Rv at San Marcos, TX n/a
Site type
Stream
ST
DMS latitude 295320 n/a
DMS longitude 0975602 n/a
Decimal latitude 29.88910804 n/a
Decimal longitude -97.9341718 n/a
Latitude-longitude method
Interpolated from MAP. M
Latitude-longitude accuracy
Accurate to + or - 5 sec. F
Latitude-longitude datum
North American Datum of 1927 NAD27
Decimal Latitude-longitude datum North American Datum of 1983 NAD83
District
Texas 48
State
Texas 48
County
Hays County 209
Country US n/a
Land net location description n/a
Name of location map San Marcos North, TX n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 557.67 feet n/a
Method altitude determined Reported method of determination. R
Altitude accuracy 99 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
12100203
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site NNNNYNNNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
n/a
Date site established or inventoried n/a
Drainage area
48.9 square miles n/a
Contributing drainage area 48.9 square miles n/a
Time Zone abbreviation CST n/a
Site honors Daylight Saving Time
Y n/a
Data reliability
n/a
Data-other GW files NYNNNNNN n/a
National aquifer n/a
Local aquifer n/a
Local aquifer type
n/a
Well depth n/a
Hole depth
n/a
Source of depth data n/a
Project number 8653-00170 n/a

Operated in cooperation with:

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Edwards Aquifer Authority
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USGS - Federal Priority Streamgages