Permitting Process for Texas Septic Systems

Permitting process for septic system in Texas:

Step 1: Site/Soil Evaluation

This is where a qualified professional acceptable to the permitting agency will conduct a site and soil evaluation. You will need to contact a licensed site evaluator for this step.

Step 2: Selection of an OSSF System

The selection of an OSSF system will be based on the conditions found during the site and soil evaluation. The primary determining factors as to whether a septic or an aerobic system is selected is lot size and soil type.

Step 3: System Planning

A system will typically be planned by a professional designer. A professional designer is either a registered professional engineer or a registered sanitarian. It is common for the site evaluator to also be a professional designer. 

Step 4: Submit Permit Application

Once system plans are prepared they must be submitted along with a permit application to the local permitting authority. (river authorities, courthouses, etc.) Permit applications are typically available at the local permitting authority.

Step 5: Review of Permit Application

The application and planning materials will be reviewed by the permitting authority. This may include a visit to the site by a designated representative (DR) of the permitting authority. The application must be approved or denied within 30 days.

Step 6: Authorization to Construct issued

An authorization to construct must be granted before construction can begin. The authorization to construct is valid for one year. This is where you hire a licensed installer to get the job done.

Step 7: Construction

The system must be constructed according to the approved plans and permit application. If changes are necessary, approval of the permitting authority must be obtained prior to change.

Step 8: Inspection

The system must be inspected by the permitting authority at appropriate phases of construction.

Typically inspection of a conventional septic system include, but not limited to:

  • House sewer- Material, depth, grade, and clean-outs
  • Treatment tank- material, size, level, depth, water tightness, tees and baffles, set backs and clean-out ports
  • Drainfields- material, dimension, grade, type and size of aggregate, soil barriers, setbacks backfill and landscaping

Step 9: Notice of Approval

A notice or approval or license to operate will be issued by the permitting authority within seven days when the completed system has passed all inspections.