Zoom into your area of interest and click on any of the icons on the map to the right to view and download detailed water quality data for that location.
Or you can skip the map and go directly to a table listing sites by TCEQ stream segments.
Available data on this website is collected by trained volunteers and is subject to revision.
To view water quality data collected by water quality professionals visit LCRA’s
Water Quality data viewer.
Monitoring Sites
Currently Monitored
Index Site
Not Currently Monitored
Inactive Index Site
Base Map Data
Stream Overlay
Watershed Overlay
County Boundaries
