Brazos River AlluviumGroundwater 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.

Model Files

Please contact the GAM Section (512-936-0871) for a copy of model files.

Model Grid

Model grid cells are geographically assigned to counties, groundwater conservation districts, river basins, groundwater management areas, and regional water planning areas within the model study area using a centroid-based approach. The model grid is available in ESRI® shapefile format and comma-delimited text file.

Download model grid

Aquifer Data

Aquifer data are only available as a package for the entire model area and require GIS software for processing. Due to the size of raw/source data files for this model, this information has not been posted on the web. To request the raw/source data, contact the GAM Section (512-936-0871).

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.