San Marcos Rv at San Marcos, TX - 08170500
Scale
Continuous data
San Marcos Rv at San Marcos, TX - 08170500
Subscribe to WaterAlert March 25, 2025 - April 1, 2025
Gage height, feet
3.68 ft - Apr 01, 2025 12:45:00 PM CDT
Important Data may be provisional
Value
Status
Time
Latest value
3.68 ft
Provisional
Apr 01, 2025
12:45:00 PM CDT
Selected
3.68 ft
Provisional
Apr 01, 2025
12:45:00 PM CDT
Compare
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Median
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Statistics for April 1, 2025 based on 29 years of data
Gage height, ft
low (2023)
3.73 ft
25th percentile
4.54 ft
median
5.07 ft
75th percentile
5.57 ft
mean
5.04 ft
high (2005)
6.26 ft
Available data
Select data types to graph from categories based on the way the data were collected.
Learn about the data collection categories Continuous data
2 data types available - data from 1994-10-01 to 2025-04-01
Continuous data are collected via automated sensors installed at a monitoring location.
Data type
Data date range
Gage height, feet
2007-10-01 - 2025-04-01
Discharge, cubic feet per second
1994-10-01 - 2025-04-01
Daily data
2 data types available - data from 1915-07-01 to 2025-03-31
Field measurements - Coming soon
0 data types available
Discrete sample data
95 Observed properties (data types) available - with data from 1994-08-18 to 1996-10-18
4 Sampling activities
- Monitoring Location
- Active Monitoring Locations
5 km
3 mi
Leaflet USGS The National Map: National Boundaries Dataset, 3DEP Elevation Program, Geographic Names Information System, National Hydrography Dataset, National Land Cover Database, National Structures Dataset, and National Transportation Dataset; USGS Global Ecosystems; U.S. Census Bureau TIGER/Line data; USFS Road data; Natural Earth Data; U.S. Department of State HIU; NOAA National Centers for Environmental Information. Data refreshed February, 2025.
Interested in understanding how to access the upstream/downstream data? Learn about the Network-Linked Data Index (NLDI)
| 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 | 2025-04-01 |
| n/a | Peak Measurements | 1995-09-20 | 2023-10-26 |
| n/a | Site Visits | 1993-10-05 | 2025-03-13 |
| n/a | USGS Annual Water Data Reports Site | 2005-01-01 | 2024-01-01 |
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
|
San Marcos | 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 |
