Williamson County, TX septic permits and regulations

Septic permit program

• Program type: County Program
• Authorized agent: Williamson County / TCEQ Region
• Own septic program: Yes
• Local rules beyond the state: No
• Population: 609,017

• Williamson County Engineer's Office - OSSF Program website
• Official fee schedule

Permit fee comparison

Average septic permit fee in Williamson County: $504. Texas average: $285.

Local rules

Has own 'Williamson County Engineer's On-Site Sewage Facility Rules' adopted by 2021 County Order. Applications only through MyGovernment Online (mgoconnect.org) - no paper applications. Excludes City of Austin areas. Fee schedule, guide, and 10+ downloadable resource documents available. License Renewal and Transfer Form available for property transfers. Contact: 512-943-3330, [email protected].

What SepticPro has on file for Williamson County

• 15 permit fees with sources
• The agency phone, email and office address
• Setback distances
• Soil and perc test requirements
• Allowed system types
• System design rules
• Inspection requirements
• Maintenance and pumping rules
• Point-of-sale rules
• Installer, designer and pumper licensing

Create a free account to see the full details.

Draw a permit-ready site plan for Williamson County

Enter the address, draw the system on the aerial with the parcel lines and topo, and print it to scale for Williamson County Engineer's Office - OSSF Program. See how SepticPro site plans work.

Other Texas counties

• Anderson County
• Andrews County
• Angelina County
• Aransas County
• Archer County
• Armstrong County
• Atascosa County
• Austin County
• Bailey County
• Bandera County
• Bastrop County
• Baylor County
• Bee County
• Bell County
• Bexar County
• Blanco County
• Borden County
• Bosque County
• Bowie County
• Brazoria County
• Brazos County
• Brewster County
• Briscoe County
• Brooks County