Logo for: NOWRA

Onsite Wastewater Mega-Conference

Thank you for a great 2023 conference. See you in Spokane October 20-23! Bookings under our hotel room block are now available. Call for Abstracts will open soon - tentatively March 1. Exhibitor and Attendee registration expected to open late spring / early summer of 2024.

The Onsite Event of the year!

The Onsite Wastewater Mega-Conference is a national, collaborative effort between the National Onsite Wastewater Recycling Association (NOWRA), the National Association of Wastewater Technicians (NAWT), and the State Onsite Regulators Association (SORA). The Mega-Conference is the largest event of its kind and offers onsite/decentralized professionals the highest quality education and training available. The 2024 Onsite Wastewater Mega-Conference will be held October 20 - 23, 2024 in Spokane, Washington in cooperation with NOWRA's state affiliates, the Washington On-Site Sewage Association (WOSSA) and the Oregon Onsite Wastewater Association (O2WA).

For future Onsite Wastewater Mega-Conferences dates and locations, refer to our Future Mega-Conference web page. 

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