Brazos River Alluvium Groundwater Availability Model (GAM)

This map shows the extent and location of the Brazos River Alluvium Groundwater Availability Model.The Texas Water Development Board (TWDB) contracted with INTERA, Inc. to develop a groundwater availability model (GAM) for the Brazos River Alluvium Aquifer. The numerical model and the final report were released in January 2017.

Current GAM

Numerical Model Report

"Numerical Model Report for the Brazos River Alluvium Aquifer Groundwater Availability Model"


Conceptual Model Report

"Conceptual Model Report for the Brazos River Alluvium Aquifer Groundwater Availability Model"


Model Files and Associated Data

Please see the GAM files download page for the current model files and associated data.

Aquifer data are only available as a package for the entire model area and require GIS software for processing. Please see the GAM files download page for aquifer data.


Stakeholder Advisory Forums (SAF)

ID Date Location
SAF 1 1/22/2014 College Station, Texas - Texas Water Resources Institute (TWRI) (1500 Research Parkway)
SAF 2 1/22/2015 Milano, Texas - Milano Civic Center
SAF 3 5/26/2016 Milano, Texas - Milano Civic Center

Other Resources

Please see the Brazos River Alluvium Aquifer page for other reports and publications.

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