On-site Septic System Permits, Inspections & Education

Clallam County's On-site Program protects public health and the environment by making sure that septic systems function properly.

The On-site Program assures that septic systems are designed, installed, and maintained in ways that meet State and local standards. It is called the On-site Program because septic systems generally treat and dispose of sewage on the site where it is created. A household septic system properly designed, installed, and maintained on suitable soil is as effective as a sophisticated sewage treatment plant.

Let's get started!

Find my Septic System

Find my Inspection Status

Find a Licensed Professional

Become Septics 201 DIY Certified

File a Sewage Complaint

Submit my DIY Inspection Online

Looking for something else? Choose a topic below:

Codes and Regulations Opens in new window
Codes and Regulations
It's the law.


File, track and find permit-related documentation
Rebates, grants and loans
Resources for Professionals
Professional Resources
Let's get to work!
Resources for Homeowners
Homeowner Resources
Find all kinds of information on taking care of your system.


What else have we been working on?

OSS Inspections
Either by a professional or DIY, all systems must be regularly inspected!
Become Septic Smart
Become Septic Smart
Educational info from the EPA!

Some of these projects have been funded wholly or in part by the United States Environmental Protection Agency under assistance agreement PC-01J18001 to the Washington State Department of Health. The contents of these documents do not necessarily reflect the views and policies of the Environmental Protection Agency, nor does mention of trade names or commercial products constitute endorsement or recommendation for use.