Washington On-Site Sewage Association

Washington On-Site Sewage Association - Wastewater Systems


"Voice of the Industry" for Members, Consumers, Our Communities & the Environment

Washington State has approximately 1.5 million decentralized wastewater systems in use, it is our mission as an Association, with the help of our members, consumers and local government; to ensure that we put the water back into our communities the way we found it. Helping to replenish nature’s support system with a long term sustainable approach to wastewater disposal and treatment.

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Calendar of Events
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Congratulations to the Newly Elected 2015 WOSSA Board Members!!!

President: Jerry Stonebridge
Vice President: Mike Moren
Past President: Bill Creveling
Treasurer: JR Inman
Secretary: Keith Pelzel
Pumper Rep: Julie Toaves
Regulatoy Rep: Dave Tipton
Eastern Region Rep: Adam Johnson
Supply / MFR. Rep: Dave Lowe

Thank you for your support and voting for WOSSA's 2015 "Voices of the Industry."  

Washington State DOH Issues 2012 RS&G's

The Washington State Department of Health has issued updated RS&G's which are available below in PDF form. WOSSA has consolidated all 15 of the new RS&G sections into one document. Bookmarks have been added for each section of this 500 page update. We hope that this will help to make your use of the RS&G's a little more efficient.

           2012 WA DOH RS&G

...more WOSSA events

Apply now for the 2015 WOSSA Education Scholarship


We are Excited to Announce that the 2015 WOSSA Education Scholarship Registration has Begun.
        Application Deadline is
               April 30, 2015

Click Here for More Info!!!

...more WOSSA news 

The 2014 Fall - 2015 Spring Training Schedule is Here!

         2014 - 2015 Schedule
                 Click Here 

     Upcoming Training Events

Mounds / Drip Mounds   06.03.15
Bremerton, WA
I-202: WAC & RS&G Contemporary Installation Issues   06.11.15
Bremerton, WA
...full class schedule



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