Ontario’s Water & Wastewater Conference & Exposition 2027

Ontario’s water and wastewater sector will come together once again as the Ontario Water Works Association (OWWA) and the Water Environment Association of Ontario (WEAO) partner to host their Joint Conference & Trade Show, May 10-13, 2027 in Toronto.

This collaborative event brings together water, wastewater, biosolids, and stormwater professionals under one roof—creating a unique opportunity for cross-sector learning, innovation, and collaboration at a time when Ontario’s communities are experiencing significant growth, aging infrastructure, and evolving regulatory demands.

The Call for Abstracts is now open! Submissions are open until October 9th.

The 2027 Sponsorship Program is Now Open!