Southern portion of the Carrizo-Wilcox Aquifer Groundwater Availability Model | Texas Water Development Board

Southern Portion of the Carrizo-Wilcox AquiferGroundwater Availability Model (GAM)This map shows the extent and location of the southern portion of the Carrizo-Wilcox Aquifer GAM.

In 2019, the Texas Water Development Board (TWDB) contracted with GSI Environmental, Inc. to update the groundwater availability model of the southern part of the Carrizo-Wilcox, Queen City, and Sparta aquifers in Texas. A final report and model will be released in late 2023.

The current groundwater availability model, which includes the Carrizo-Wilcox Aquifer can be accessed at Carrizo-Wilcox, Queen City, Sparta Aquifers Groundwater Availability Model. However, model users interested in details about the development of the Carrizo-Wilcox Aquifer Groundwater Availability Model should still refer to the groundwater availability model report (Version 1) listed below.

Southern portion of the Carrizo-Wilcox Aquifer GAM Update

Stakeholder Advisory Forums (SAF)

Send us an email if you would like to receive SAF notifications.

ID Date Location
SAF 1 8/2/2019 Pleasanton, Texas

 

Southern portion of the Carrizo-Wilcox Aquifer GAM Version 1

Model Files

The Carrizo-Wilcox Aquifer Groundwater Availability Models (all three portions) have been incorporated into the Carrizo-Wilcox, Queen City, Sparta Aquifers Groundwater Availiability Models. See the Carrizo-Wilcox, Queen City, Sparta Aquifers Groundwater Availability Models page for 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.

See the Carrizo-Wilcox, Queen City, Sparta Aquifers Groundwater Availability Models page for the model grid.

Aquifer Data

The Carrizo-Wilcox Aquifer Groundwater Availability Models (all three portions) have been incorporated into the Carrizo-Wilcox, Queen City, Sparta Aquifers Groundwater Availability Models. See the Carrizo-Wilcox, Queen City, Sparta Aquifers Groundwater Availability Models page for aquifer data.

Stakeholder Advisory Forums (SAF)

ID Date Location
SAF 8 1/13/2003 Austin, Texas
SAF 7 11/4/2002 San Antonio, Texas - San Antonio River Authority Board Room (100 East Guenther Street)
SAF 6 8/5/2002 San Antonio, Texas - San Antonio River Authority Board Room (100 East Guenther Street)
SAF 5 5/30/2002 Gonzales, Texas - Guaranty Bank Community Room (1711 North Sarah DeWitt Drive)
SAF 4 3/1/2002 Pleasanton, Texas - Evergreen Underground Water Conservation District
SAF 3 11/27/2001 Carrizo Springs Civic Center
SAF 2 8/7/2001 San Antonio, Texas - San Antonio River Authority
SAF 1 4/24/2001 San Antonio, Texas - San Antonio River Authority

Other Resources

Please see the Carrizo-Wilcox, Sparta, and Queen City aquifer pages for other reports and publications.

For model runs see the GMA 13 page.

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