Onsite Wastewater Treatment System Information

NEWS:

NOWRA recently launched an online version of their homeowner OSS training. It is free after creating an account. Concepts covered include: the importance of wastewater treatment, an overview of treatment in an onsite system, typical onsite system features, final treatment and dispersal, management, maintenance, safety, and system troubleshooting. Click link for more info: Onsite Wastewater Treatment System Homeowner Education - NORWA

The course handbook is also is available as a flipbook: Onsite Wastewater Treatment System User Guide

Please visit Skamania County for Revisions of the On-Site Sewage System Rule Revision. 

On-site Sewage System Rule Revision - Washington State Department of Health

Chapter 246-272A WAC On-site Sewage Systems Washington State Board of Health adopted proposed changes to chapter 246-272A, On-site Sewage Systems, on January 10, 2024. The adopted revisions incorporate recommendations from the Onsite Rule Revision Committee and other issues raised by interested parties. Go to doh.wa.gov for more information.