Onsite Sewage Systems

Chapter 246-272A WAC establishes standards for the siting, design, installation, use, care, and management of on-site sewage systems. In March 2018, the Board filed a CR-101, Preproposal Statement of Inquiry, to explore possible updates to the rules.

The Board and Washington Department of Health are using a collaborative rulemaking approach to gather input during the rulemaking process. The Department’s On-Site Sewage Rule Review Committee serves as the main stakeholder committee for this rulemaking project.

The Department most recently updated the Board in November 2019. The Department is finalizing rule language and readying accompanying rule analyses for further discussion and consideration by the Board. The rulemaking has been delayed by Covid response and other factors. Staff is currently resetting the project timeline and will post it on the Department's rulemaking page when available.

For more information or to join the interested parties’ list, visit the Department’s rulemaking web page.

Statutory Authority: RCW 43.20.050
State Board of Health Contact: Stuart Glasoe, 360-236-4111
Department of Health Contact: Peter Beaton, 360-236-4031

Related Links: Meeting Materials