2024 Onsite Wastewater Mega-Conference
‹ Back to CalendarDoubleTree by Hilton Spokane City Center
Spokane, WA
In cooperation with Washington On-Site Sewage Association (WOSSA).
DoubleTree by Hilton Spokane City Center
Spokane, WA
In cooperation with Washington On-Site Sewage Association (WOSSA).
Join the country's go-to onsite wastewater organization for training opportunities, industry updates, & professional services—and to make sure your voice is heard in Washington.
Become a Member