Barton Springs segment of the Edwards (Balcones Fault Zone) AquiferGroundwater Availability Model (GAM)This map shows the extent and location of the Barton Springs segment of the Edwards (Balcones Fault Zone) Aquifer Groundwater Availability Model.

In 2008, the Texas Water Development Board (TWDB), in collaboration with the Barton Springs/Edwards Aquifer Conservation District, contracted with Southwest Research Institute® to develop a groundwater flow model for the Barton Springs segment of the Edwards Aquifer utilizing the MODFLOW-DCM code. The model was completed in 2009.

Model Files

Please contact the GAM Section (512-936-0871) for a copy of the 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 is only available as a package for the entire model area and requires 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. For the raw/source data, contact David Thorkildsen (512-936-0871).

Stakeholder Advisory Forums (SAF)

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

ID Date Location
SAF 2 1/8/2009 Austin, Texas - Barton Springs Edwards Aquifer Conservation District (1124 Regal Row, Austin, TX, 78748)
SAF 1 5/28/2008 Austin, Texas - Stephen F. Austin Building (1700 North Congress Avenue)

Other Resources

Please see the Edwards (Balcones Fault Zone) Aquifer and the Barton Springs Segment of the Edwards (Balcones Fault Zone) Aquifer Alternative Groundwater Flow Model pages for other reports and publications.

For model runs see the GMA 10 page.