Septic / OSSF
Septic Systems Require a County Permit
Most rural properties in Polk County are not on a public sewer, so a new septic system needs a county on-site sewage permit before installation.
In Texas, a septic system is called an On-Site Sewage Facility, or OSSF. If your property is not served by a city sewer line, you need an OSSF permit from Polk County before installing or repairing a system. This applies to both new construction and repairs to existing systems.
Polk County's permits department handles residential OSSF permits, commercial OSSF permits, and aerobic system maintenance permits. Contact the permits office at 936-327-6820, ext. 1, or email permits@co.polk.tx.us. Hours are Monday through Friday, 8 a.m. to 4 p.m.
Source to confirm: Polk County Permits — polktx.gov