Limestone County Septic Permitting
Serving Groesbeck, Mexia. Who to contact, what it costs where the county publishes it, and the local requirements that catch people out.
Permitting authority
Limestone County OSSF — County Judge’s Office
Limestone County Courthouse
200 W State St
Groesbeck, TX 76642
What to know here
- Permitting runs through the county judge’s administration office.
- Floodplain management is a separate stop. Paperwork is filed there as well as with the permitting office — a step that surprises most applicants.
- Some matters are handled by TCEQ Region 9 (Waco) rather than the county.
Still being filled in. Fee schedule and full document list not yet verified. County processes change without notice — call before you rely on anything here, and tell us if you find something out of date.
Reviewed August 2026.
Before you call the county
Most permit applications need the same core set of documents: a site evaluation by a licensed site evaluator or professional engineer, planning materials showing the proposed system and its layout, a plat or survey with the legal description, a confirmed 911 address, the applicable fee, and a recorded affidavit to the public where the system type requires one. Aerobic systems also need an executed maintenance contract.
Details on each step are on the permitting page, and the design page covers what a site evaluation involves.