Septic Systems
For information regarding Septic Systems, please select from the options below:
Septic Systems Permits & Resources
Septic system permitting resources, financial assistance, and applications for new on-site septic systems and repairs.
Care & Maintenance of Your Septic System
How to care, maintain, and protect a septic system.
Homeowner Maintenance & Requirements
Maintenance & requirements - not all systems within Thurston County require an Operational Certificate (OPC).
Hiring a Septic Professional
Current lists of septic system professionals certified to perform services in Thurston County, check with your contractor to make sure they are still certified.
Information & Guidance for Septic Professionals
Information to operate as a septic designer, installer, monitoring specialist or pumper in Thurston County.
Time of Transfer
Required process when selling a home. The Time of Transfer process requires the septic system to be pumped and inspected by a Thurston County certified septic system professional prior to application submittal.
Frequently Asked Questions
Frequently Asked Questions about septic systems, time of transfer, maintenance & care, and more.
3D Models of Healthy and Unhealthy Common Septic Systems
Tacoma-Pierce County Health Department provides popular 3D models.
Contact our department or email us at environmental_health@co.thurston.wa.us if you have additional questions.
| Building Development Center | (360)-786-5490 | Craft 3 Loan | (360)-867-2170 |
| General Questions/Failing System | (360)-867-2673 | Operation and Maintenance | (360)-867-2626 |
| Septic Help Line | (360)-867-2669 | Septic, Land Use, and Drinking Water | eh_tech@co.thurston.wa.us |