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OOWA is an industry leader in education and advocacy for onsite sewage systems, commonly known as septic systems, and decentralized wastewater management in Ontario

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.

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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 has started populating our new YouTube channel with content for various audiences. Check back often for our latest releases!

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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.

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Guidance Documents

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

OOWA’s Summer 2022 Newsletter out now!

In this edition, you’ll find the following content: Partnering with community, building for better living Installers Corner, featuring Dan Friesen of ESI Group Meet the OOWA new staff member Passive technology helped two rural schools managing their wastewater OOWA’s annual scholarship and industry award announcements Six things to consider when acquiring a skid steer Managing […]

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Introduction to Design

Are you looking to upgrade your skills, expand your list of provided services? Join us for a one day course builds on the 5 day Part 8 Ontario Building Code Installer/Inspector licensing course and helps participants develop skills with design calculations contained in the building code. Suggested Pre-Requisite: Five-Day Part 8 Licensing Course or equivalent […]

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