OOWA's Regional Meetings are back! Join us in-person to network with colleagues and hear from fellow industry professionals. Learn More

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

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Latest News & Events

OOWA’s Fall/Winter 2022 Onsite Newsletter released!

In this edition, you’ll find the following content: An insider’s look into Clearford’s First Nations operations Site evaluation, loading determination, and treatment train components Funding sources for property owners to repair or replace onsite sewage systems Finding malfunctioning septic systems New guidance for source protection for non-municipal drinking water Employee recruitment, retention, and turnover Ontario […]

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OOWA’s Regional Meetings are back!

Join us in-person throughout the Province to network with colleagues and learn from fellow industry professionals. In a casual setting, enjoy socializing over a beer and burgers with the folks you likely haven’t seen in over two years. Each Regional Meeting will feature two or three speakers addressing industry and region specific topics. We’ve missed […]

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Submit a presentation proposal for our Annual Convention!

Here are the details for submitting a presentation proposal. The deadline has been extended to November 14, 2022 for submissions. Email outreach@oowa.org with your presentation abstract (one page, up to 500 words), and include a brief bio of yourself and a photo. […]

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