On-Site Sewage Facilities (OSSF)

On-Site Sewage Facilities (OSSF) An On-Site Sewage Facility permit is required for all installation, modification, and replacement of On-Site Sewage Facilities. 

View commonly asked questions by homeowners regarding their on-site sewage septic systems as well as tips to use in selecting an installer on the Texas Commission on Environmental Quality website.


Online Forms Related to On-Site Sewage Facilities