Start a septic project with the local permitting authority

A house without sewer service needs more than a tank and a backhoe. Texas calls a septic system an on-site sewage facility, or OSSF. TCEQ sets the state rules. Caldwell County handles permits and inspections in its service area. Check the exact address first, since a city may be in charge.

Start with the county OSSF packet. It has the permit steps, fees, site-evaluator list, installer list, sewage-facility form, and development form. A permit can come after the site review checks the soil and the site. If the design does not need changes, the packet gives the office five days to review it.

Texas has a narrow 10-acre exception. It may cover one home when all parts of the system sit at least 100 feet from a property line and every other rule is met. A licensed site expert must still check the land. Some sound older systems may also be grandfathered. Ask the local office before counting on either path.

For a permitted job, plan for inspection. The county packet calls for 24-hour notice and an installer or apprentice on site during construction and inspection. When buying land with an existing OSSF, ask for its permit, planning papers, and maintenance records before closing.