Water Wells
Groundwater in Gillespie County Is Managed by a Local District
If you drill a water well in Gillespie County, you must deal with the Hill Country Underground Water Conservation District.
The Hill Country Underground Water Conservation District covers all of Gillespie County. Voters created it in 1987. It tracks wells, sets drilling rules, and watches groundwater levels. It monitors several aquifers, including the Ellenburger and the Hensel.
If you drill a well for home use or livestock, you do not need a permit. But you must register the well with the district. Registration is required.
If you drill for commercial, irrigation, or municipal use, you need a permit. You must also meet spacing and production limits. The district has monitored about 120 wells across the county to track aquifer health.
Before you buy rural land in Gillespie County, ask about the well depth and which aquifer it draws from. Call the district at 830-997-4472 for current rules.
Source to confirm: Hill Country Underground Water Conservation District — Gillespie County Wells