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Water Wells Practical

New Water Wells in Karnes County Need District Approval

If you plan to drill a water well on rural property in Karnes County, you fall under the rules of the Evergreen Underground Water Conservation District (EUWCD). Karnes County joined the district in 1998. The district covers four counties: Atascosa, Wilson, Frio, and Karnes. Some wells are exempt from permits; others require one before you drill. Rules and fees can change, so check with the district before you start any well project.

The EUWCD manages several aquifers in the area, including the Gulf Coast Aquifer, which runs through Karnes County. Water quality can vary across the county, with some areas having higher salt content. The district's main office is in Pleasanton. Contact them or visit their website to find out what applies to your parcel.

Content last revised 2026-07-11

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