Septic Work Needs an OSSF Permit and Inspection

In Texas rules a private septic system goes by a clunkier name: an on-site sewage facility, or OSSF. Building one, altering it, repairing it, extending it, even operating it all needs a permit and an approved plan under TCEQ rules, with only narrow exceptions.

Out here that comes up constantly: rural homes, small acreage, colonias, anything past a public sewer line. The county's construction application spells out that septic-tank installation takes its own separate permit, plus verification that the finished system was installed the way the law requires.

On any tract you're eyeing, ask who the local permitting authority is for that address and whether the existing system has records on file. A failing or unpermitted septic, discovered after closing, is the kind of surprise that stalls utility clearance and turns into a five-figure repair.