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. Some septic contractors are certified in more than one area. For more information on becoming certified you can email Water and Wastewater.

  • Septic installers must meet Snohomish Health District examination and certification requirements (PDF)
  • Sewage pumpers: Certified by Snohomish Health District and must pass an exam and show proof of insurance
  • Designers and engineers: Licensed by the Washington State Department of Licensing
  • Monitoring and maintenance specialists: Certified by the Snohomish Health District and must pass both portions of the Washington On-Site Sewage Association exam in addition to meeting the 2-year experience requirement and showing proof of current registration with the Washington State Department of Labor and Industries