Rural Septic Work Needs an El Paso County OSSF Permit

A private septic system goes by a more formal name in Texas rules: an on-site sewage facility, or OSSF. In El Paso County it sits among the permits handled by Planning and Development, and you need written authorization in hand before any construction starts.

Getting there takes more than a quick form. The application calls for site information and a soil-and-site evaluation done by a TCEQ-licensed site evaluator or a professional engineer, and only someone licensed by TCEQ and authorized to construct may actually build the system.

All of this lands hardest on homes beyond public sewer service, which in El Paso County usually means the unincorporated areas. The county's On-Site Sewage Facility Program can tell you which records, plans, inspections, and license-to-operate steps your particular situation triggers — a five-minute call that's a lot cheaper than learning the answer after you've bought the land or torn out a failing tank.