Septic system permits in Brazos County

Texas calls a septic system an on-site sewage facility, or OSSF. Brazos County Health District handles permits in the county except inside Wixon Valley. For a Wixon Valley site, confirm the permit office first.

A permit is needed for a new system, a repair, a major change, an added line, or use of the system. A licensed worker must test the site and soil. A separate plan must come from an engineer or registered sanitarian. Some systems need an engineer.

Send the fee with the full application. Work starts only after the district issues and posts its approval to build. A system with extra treatment usually needs service from a TCEQ-registered provider. State rules have a few owner exceptions.

A basic tank often needs pumping every three to five years. Tank size and home use change that timing. Brazos County Environmental Health lists 979-361-2361 for permit questions.