onsite sewage program

KItsap County Health District Certified Contractors

The Health District licenses on-site sewage installers, operation and maintenance contractors and on-site sewage pumpers to do specific types of on-site sewage related work which fall within the purvey of their license. The on-site sewage regulations state the requirements and expectations for each type of license obtained.

You may download a current list of contractors
based upon contractor type here:

On-Site Sewage Installers

Operation And Maintenance Specialists

Onsite Sewage Pumpers

Onsite Sewage Designer-Engineer Referral List

Retro-fit LIst (for upgrading/updating your system to meet maintenance requirements)

The Washington State Department of Licensing now licenses the on-site sewage designers. Below is a link to the Washington State Department of Licensing contractors search engine.

On-Site Wastewater Treatment System Designer