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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WOSSA Lobbyist Fundraiser

WOSSA is the only organization in the State of Washington representing the interests of the Onsite Industry and we need your support to make sure that when some thing happens in Olympia when the legislature is in session, that we know about it.

Please donate today!

        Click Here to Donate  

...more WOSSA events

Don't Miss out on the Last Scheduled Training Event of the Spring


Confined Space Entry Training for Workers in OSS:
Discuss the rule requirements as they apply to CSE in the OSS industry in our state. Discuss the roles of: Entrant, Attendant and Supervisor. Review Examples of OSS Confined Spaces: Septic and Pump Tanks, Pump Trucks and Sewer lines. Application of Confined Space rules to Excavations and Trenches: Tank Excavations, Trenches and Soil Log Test Pits. Review Personal Protective Equipment (PPE): Selection, Fit for use and Maintenance. Practice and demonstrate proficiency doing a confined space entry and using CSE equipment.

...more WOSSA news 

The Spring 2016 Schedule is  Almost Over!

        2015-2016 Schedule
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     Upcoming Training Events

Confined Space Entry for Workers in the OSS Industry   06.01.16
Puyallup, WA
...full class schedule



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