Find a Professional

OOWA is dedicated to providing access to a large network of onsite wastewater professionals throughout Ontario. Our members include a wide range of disciplines such as sewage (septic) system design and installation to septic tank pump-outs, repair, and inspections.

Find a Professional

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Membership

When you become a member of OOWA, you are joining a network of engaged professionals who are leaders in the onsite industry and in their communities. Our members have access to leading continuing education resources and association benefits.

Learn More about Joining

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Homeowner Resources

Our goal is to help homeowners find resources about septic systems. Learn more about how septic systems work, how to prolong their life, how to get one installed on your property, and why onsite wastewater management is good for your property and the environment.

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Video Library

Are you a rural homeowner looking to learn more about your sewage (septic) system? Are you an industry professional looking for resources? OOWA continues to populate our YouTube channel with content for various audiences. Check back often for our latest releases!

Training

Our members have access to quality education and training across the province. OOWA recognizes a number of educational providers who offer a wide variety of courses and training schedules. Courses delivered by these recognized providers may be used towards accreditation and experience requirements needed to qualify for the Registered Professional Program.

Learn More About Training

Guidance Documents

OOWA’s Onsite Technical Committee (OTC) has prepared many peer-reviewed guidance documents with the goal of providing clarification and uniform practices regarding many industry undertakings including the installation of sand filter beds, pump chambers, and site evaluation to name a few.

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Newsletters

Find older issues of OOWA’s newsletter in our archive.

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Latest News & Events

Driving Change: Highlights from Our First-Ever Golf Tournament

On September 19, 2025, we teed off at Harbourview Golf and Country Club in Gilford for our very first Golf Tournament—and what a day it turned out to be! With 62 attendees, sunny skies, and a shared spirit of generosity, the event brought together community, camaraderie, and a powerful purpose: raising funds for our Scholarship […]

Read More… from Driving Change: Highlights from Our First-Ever Golf Tournament

OOWA’s 2025 Summer edition of the Onsite newsletter out now!

In this edition, you’ll find:Ontario’s Hauled Sewage Industry: Challenges & SolutionsTips for New Sewage System InstallersOOWA newsRethinking Milking Centre Wash Water for On-Farm Septic SystemsThe Red Tag: Ensuring Code Compliance in Precast Tanksand more! WEB-2025-OOWA-Summer-Newsletter-Spreads.pdf […]

Read More… from OOWA’s 2025 Summer edition of the Onsite newsletter out now!

OOWA’s 2025 Convention Summary Package is now available!

Explore our Summary Package for a complete recap of this year’s convention. https://www.oowa.org/wp-content/uploads/2025/05/2025-Post-Convention-Summary-Package-Final-1.pdf […]

Read More… from OOWA’s 2025 Convention Summary Package is now available!

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