SAN MARCOS RIVER @ FM 20 (TXSTRMTM_WQX-15503) site data in the Water Quality Portal
Data Provider: STORET (Learn more about Water Quality Portal Data Providers)
This river/stream site, maintained by the Texas Stream Team (identifier TXSTRMTM_WQX), has the name "SAN MARCOS RIVER @ FM 20" and has the identifier TXSTRMTM_WQX-15503. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC) 12100203. You can learn more about what is happening in this HUC at the EPA's Surf Your Watershed site or at the USGS Science In Your Watershed site.
This site is located in Caldwell County County, Texas at 29.7513900000 degrees latitude and -97.7808300000 degrees longitude using the datum NAD83. No horizontal location accuracy metadata is available.
To download the metadata about this site along with water quality data, go to the Portal Page and enter "TXSTRMTM_WQX-15503" into the "Site ID" box under Site Parameters
What other monitoring locations are upstream or downstream from this one?
This map shows all Water Quality Portal stations that are 10 miles upstream (dashed dark blue) and 10 miles downstream (solid light blue) of this monitoring location (indicated by the large blue circle). The upstream and downstream functionality is provided by the National Linked Data Index, part of the Open Water Data Initiative.
|Characteristic Group||Date Range*|
|Information||2016 - 2022|
|Organics, Other||2018 - 2022|
|Physical||2016 - 2022|
What other information is available for this location?
For the definitions of the metadata elements, please go to the Water Quality Portal user guide
|OrganizationFormalName||Texas Stream Team|
|MonitoringLocationName||SAN MARCOS RIVER @ FM 20|