OOWA is the fastest-growing network of onsite wastewater professionals in Ontario!

Onsite Wastewater Education & Representation

The Ontario Onsite Wastewater Association (OOWA) is dedicated to representing and educating members within the onsite and decentralized wastewater industry in Ontario. Our members are among the most well respected practitioners in the industry: Educators, regulators, engineers, contractors, manufacturers, suppliers, service providers, and other parties dedicated to providing the best onsite wastewater industry services available, while working to preserve Ontario’s water resources and environment.

2017 Convention and Expo Exhibitor Packages

The Ontario Onsite Wastewater Association is excited to announce that we will be returning to Niagara Falls for our annual gathering, this time hosted at the Scotiabank Convention Centre from Saturday, March 25th to Monday March 27th. Our annual conference and trade show is now the OOWA 2017 Convention and Expo. Read more

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