Marathon Aquifer Groundwater Availability Model (GAM)

This map shows the extent and location of the Marathon Aquifer.The Texas Water Development Board (TWDB) contracted with Daniel B. Stephens & Associates (DBS&A) to develop a conceptual model of the Marathon Aquifer in Texas. The conceptual model report will be available in 2022. TWDB will use this information to develop a Groundwater Availability Model for the Marathon Aquifer.

Conceptual Model Report

Marathon Aquifer Conceptual Model Completion Report

Model Files and Associated Data

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

Stakeholder Advisory Forums (SAF)

The second SAF for the Marathon Aquifer Conceptual Model occurred in-person on Thursday, August 4, 2022 at 6:00 p.m. at the Marathon Elementary School Auditorium and was followed by a field trip on Friday, August 5, 2022 at 9:00 a.m. The draft Marathon Aquifer Conceptual Model Completion Report is available for stakeholder review. Please submit written comments and suggestions by September 30, 2022 to Jean Perez

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

ID Date Location
SAF1 December 3-4, 2020 Marathon High School and Online meeting (view video recording)
SAF2 August 4-5, 2022 Marathon Elementary School Auditorium