Northern Segment of the Edwards (Balcones Fault Zone) Aquifer Groundwater Availability Model (GAM)

This map shows the extent and location of the northern segment of the Edwards (Balcones Fault Zone) Aquifer Groundwater Availability Model.The Texas Water Development Board is currently updating the 2003 groundwater availability model for the northern segment of the Edwards (Balcones Fault Zone) Aquifer.

Updated GAM: Northern Segment of the Edwards (Balcones Fault Zone) Aquifer GAM

Conceptual Model Report

Conceptual Model: Northern Segment of the Edwards (Balcones Fault Zone) and Associated Trinity Aquifers of Texas

Stakeholder Advisory Forums (SAF) - Update

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

ID Date Location
SAF 1 03/05/2018 Belton, Texas
SAF 2 08/04/2020 Online meeting (view video recording)

Original GAM: Northern Segment of the Edwards (Balcones Fault Zone) Aquifer

Model Report

Groundwater Availability Modeling: Northern Segment of the Edwards Aquifer, Texas.


Model Files and Associated Data

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

Aquifer data is only available as a package for the entire model area and requires GIS software for processing. Please see the GAM files download page for these data.


Stakeholder Advisory Forums (SAF)

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

ID Date Location
SAF 7 11/6/2003 Austin, Texas
SAF 6 7/17/2003 Salado, Texas - Salado Civic Center (601 North Main Street)
SAF 5 4/24/2003 Salado, Texas - Salado Civic Center (601 North Main Street)
SAF 4 1/15/2003 Salado, Texas - Salado Civic Center (601 North Main Street)
SAF 3 9/26/2002 Salado, Texas - Salado Civic Center (601 North Main Street)
SAF 2 6/27/2002 Austin, Texas - William B. Travis Building (1701 North Congress Avenue)
SAF 1 3/18/2002 Austin, Texas - William B. Travis Building (1701 North Congress Avenue)

Other Resources

Please see the Edwards (Balcones Fault Zone) Aquifer page for other reports and publications.

For model runs see the GMA 8 page.

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