Wastewater - Water Quality Resources
A failing wastewater disposal system can pollute more than just your yard—it can impact local water quality.
When not properly maintained and used, septic systems and your sewer lines can leak harmful bacteria, viruses, and nutrients into groundwater and nearby waterways. This can contaminate drinking water sources and harm aquatic life. Regular inspections, pumping, and knowing what to put down your drains can help keep your system working right, and protect your health, your property, and the environment.
Find additional resources to protect water below.
Resource Links
- Basics of Septic Systems (WA DOH)
- Drip System (King County)
- Gravity Septic System (TC)
- How to inspect your system? (WA DOH)
- Landscaping your Drainfield (TC)
- Mound Septic System (WA DOH)
- Pressure Septic System (TC)
- Riser Installation Instructions (TC)
- Sand Filter Septic System (WA DOH)
- Septic Permitting (TC)
A majority of the sewer systems in Thurston County are handled by municipalities or private entities. Find your applicable service below:
- Craft3 - Loan/Grant Funding
- Riser Rebate (TC)
- Critical Home Repairs - Repayment/Loan Program (South Puget Sound Habitat for Humanity)
- Homeowner Maintenance Grant (TC)
- Tank Pumping Coupon (TC)
- Rural Housing Repairs - Loan/Grant Funding (USDA)
Contact Us
Contact our Water Quality program at (360) 867-2626 or email us at environmental_health@co.thurston.wa.us if you have additional questions.