Septic Application Turnaround Times

Current Turnaround Times

  • New Septic System Application: 10 Weeks
  • Building Construction Clearance Review:  10 Weeks

    Septic_Rectangle Buttons_Check Application Status Opens in new window

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.

The Snohomish Health District reviews septic system designs for single-family homes and small businesses (systems less than 3,500 gallons per day). The Washington Department of Health regulates larger septic systems in Snohomish County.