Retrieve detailed water quality information for the entire Colorado River basin

Click on any of the icons on the map to the right to retrieve detailed water quality data for that location. You can zoom and pan around the map as you can with any other Google Maps application. Or you can skip the map and go directly to the table listing stream segments and sites.
Default Map Areas


Toggle map data below

   Monitoring Stations

   Monitoring Icon LCRA
   Monitoring Icon UCRA
   Monitoring Icon CRMWD
   Monitoring Icon Bay Data
   Monitoring Icon Real Time Salinity


   Base Map Data

   Stream Overlay
   Watershed Overlay
   County Boundaries


Show Frequently Asked Questions
Default Map Areas:

LCRA's Water Quality Data website allows you to select one of eight map locations to highlight. The maps range from the Upper Northeast region near Abilene to the Highland Lakes area to the City of Austin and down to the Gulf Coast at Matagorda Bay.
Stream Overlay:

Toggle this checkbox to add and remove water features from the map. As you zoom in further on the map the water features become more detailed.
County Boundaries:

Toggle this checkbox to add and remove counties from the map. County boundaries are available for the entire state of Texas.
Watershed Overlay:

Toggle this checkbox to add and remove watersheds from the map. Watersheds are available for the Colorado River basin and are more detailed in and around the City of Austin.
LCRA Monitoring Locations:

Toggle this checkbox to add and remove water quality sites monitored by the Lower Colorado River Authority.
UCRA Monitoring Locations:

Toggle this checkbox to add and remove water quality sites monitored by the Upper Colorado River Authority.
CRMWD Monitoring Locations:

Toggle this checkbox to add and remove water quality sites monitored by the Colorado River Municipal Water District.
Bay Monitoring Locations:

Toggle this checkbox to add and remove water quality sites in Matagorda Bay.
Real Time Salinity Monitoring Locations:

Toggle this checkbox view salinity data for the Colorado River at Winchell and San Saba.