Septic

1. As-Built Records

   The Snohomish Health District offers an online database of septic system records for properties in Snohomish County.

2. Septic & Wastewater

   Nearly 1 in 4 U.S. households depend on an individual on-site sewage system or a small community cluster system to treat their wastewater. If properly built and maintained, decentralized wastewater treatment systems have many benefits.

3. Septic Contractors

   Septic professionals such as pumpers, installers, and monitoring and maintenance specialists receive individual certifications. On this page, we list companies with certified professionals on staff who are certified in Snohomish County.

4. Septic Maintenance

   State law requires that homeowners inspect and maintain their septic systems to ensure it is functioning properly. The longevity of your on-site septic system relies heavily on the way that you care for it.

5. Septic Permits

   Designing and building an on-site sewage system (OSS) on your property can be a lengthy process. State and local rules and regulations require that you first hire a licensed professional who will evaluate your site, design a system, and complete the permit application process with our office.

6. Sewer & Water Districts

   Most occupied properties in Snohomish County are within an existing sewer district. These properties may be able to, or may even be required to, connect when a property is developed or an existing septic system fails. See the sewer and water districts within the county as well as each district’s contact information.