Edwards BFZ Aquifer (Barton Springs segment)Groundwater Availability Model (GAM)

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 Report

"Groundwater Availability of the Barton Springs Segment of the Edwards Aquifer, Texas: Numerical Simulations Through 2050."

Model Files

Please contact David Thorkildsen (512-936-0871) for a copy of model files. The model files are available in an electronic format with a small processing fee per CD/DVD.

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. The raw/source data may be requested on CD(s) in an electronic format with a processing fee by contacting David Thorkildsen (512-936-0871).

Stakeholder Advisory Forums (SAF)

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

Other Resources

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

For model runs see the GMA 10 page.