The Groundwater Management Area 9 (GMA-9), includes all or part of 9 counties in the Texas Hill Country, was established in 2002. The Texas Water Development Board created 16 Groundwater Management Areas across Texas, each with a number of groundwater conservation districts (GCDs) included in their boundaries.
Current Planning Documents
The 2026, 4th joint planning cycle is in progress. As documents are made available you will find them here.
GMA-9 - 2021 Explanatory Report for Desired Future Conditions for Major and Minor Aquifers
3rd Cycle (2021) *Submitted to the TWDB, in TWDB Review Process*
Modeled Available Groundwater
GAM Task 10-031 Supplemental to GAM Task 10-005
TWDB's Administratively Complete Letter