West Texas Bolsons and Igneous Aquifers
The Texas Water Development Board is updating the groundwater availability models of the West Texas Bolsons and Igneous aquifers in Texas. The model is expected to be completed in the Fall of 2025.
Draft Model (v 2.01)
The draft groundwater availability model (GAM) for the Igneous and West Texas Bolsons aquifers is currently under public review. The deadline to submit comments to the TWDB is end of day on September 1, 2025.
Please send any comments to gam@twdb.texas.gov.
| Draft Model Files |
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| Model Files (13.7MB zipped) |
| Conceptual Model Report |
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| Conceptual model report |
Stakeholder Advisory Forums (SAF)
The third Stakeholder Advisory Forum (SAF) for the Igneous and West Texas Bolsons aquifers groundwater availability model (GAM) was held online on July 29, 2025 at 10:00am CDT. Please submit comments and questions to Dr. Ian Jones (512-463-6641). The slides and recording will be posted to this webpage when available.
Send us an email if you would like to receive SAF notifications.
| ID | Date | Location | Slides | Video |
|---|---|---|---|---|
| SAF 1 | 01/19/2023 | Online meeting | SAF 1 slides | Video recording |
| SAF 2 | 04/04/2024 | Online meeting | SAF 2 slides | Video recording |
Other Resources
Please see the Igneous and West Texas Bolsons aquifer pages for other reports and publications.
For model runs see the GMA 4 page.