For decades, the health of South Puget Sound waters has been a critical focus of the State of Washington’s Department of Ecology. It is remarkable how clear these waters have been maintained due to the efforts of our counties to regulate residential septic systems. Thurston County has been a mentor to other county’s efforts to provide the necessary guidelines to keep our water free of pollutants but it is up to the individual home owner to understand how they can do their part.
Operation & Maintenance
Learn to properly operate and maintain your septic system.
- Septic System Basics
- The Drainfield
- Inspecting Your Septic Tank
- Septic Systems Dos and Don’ts
- Special Conditions
Septic System Videos
- Gravity Flow System, Understanding and Maintaining Your [VIDEO]
- Pressure Distribution System, Understanding and Maintaining Your [VIDEO]
- Mound System, Understanding and Maintaining Your [VIDEO]
- Sand Filter System, Understanding and Maintaining Your [VIDEO]
Types of Septic Systems
Learn about the different types of septic systems.
- Conventional Systems
- Gravity System [PDF]
- Pressure Distribution System [PDF]
- Alternative Systems
- Other Systems (Proprietary)
