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stewards of environment


AOWMA was incorporated in 1998, with a mission to improve the practices within the private sewage industry through training and certification.

In 2008, the AOWMA incorporated an umbrella organization, the Western Canada Onsite Wastewater Management Association (WCOWMA) to aid in servicing the private sewage industry across the Western provinces.


With the increase in population density, changing government regulations and new technology, the installers of onsite sewage disposal systems have increasingly felt a need to address industry concerns. These concerns include training, representation to government at all levels, and the preservation of the environment.

AOWMA members focus on strengthening and shaping the onsite wastewater industry through their role as important stewards of the environment and key players in rural land use planning.

Membership is open to anyone with an interest in private sewage. Currently the membership is comprised of installers, designers, maintenance providers, inspectors, pumpers, engineers, geoscientists, regulators, and educators.

Representation Benefits

Setting the national standard for onsite training. Our training program is recognized throughout Canada as the premier onsite wastewater certification program.

Influencing provincial and municipal regulations. The AOWMA participates in a variety of stakeholder groups that provide input to policy makers when regulatory changes that impact the onsite wastewater are being considered. The AOWMA administration consults with local, regional and provincial governing agencies providing information on onsite wastewater technologies and resources to help them build effective and sustainable wastewater treatment and disposal policies.

A key component of having a healthy and effective onsite industry is ensuring that homeowners have access to the information they need to make sound decisions regarding their onsite wastewater systems. The AOWMA provides that information to the general public, acting as a resource and providing referrals to our member professionals.

In order to maintain open lines of communication with our membership, AOWMA will continue to communicate through education days, notifications, social media, and direct communication.

Monthly newsletters are emailed or mailed out, keeping members abreast with advancements in the onsite industry.

Semi-annual industry magazine.

Business Benefits

Members are listed on our website directory in the regions in which they work.  Homeowners utilize this directory service daily to locate contractors in their area.

The AOWMA regularly receives calls from homeowners requesting referrals to contractors in their region.  The AOWMA only refers callers to AOWMA members.

Referrals and access to customized business insurance programs that provide those coverages not generally available through business insurance such as Errors and Omissions coverage and Pollution Liability.

You can save 10% on work clothes by presenting the wallet card included in your membership package at the till with your purchases from any Mark’s outlet.

WCOWMA members can take advantage
of preferred pricing customized merchant services for your business through Merchant 1 Payments.

Take advantage of discounts up to 35% off the list price on supplies and parts from NAPA through your WCOWMA membership. Deliveries of products will be free of charge. Freight charges may apply to garage equipment and emergency orders of automotive parts and accessories. 

Every company has an office to provide infrastructure to their business and every office uses business supplies. Through a partnership with Staples Advantage/Corporate Express, AOWMA members may take advantage of savings of 60% or more on stationery and shop supplies. Staples Advantage/Corporate Express delivers your order right to your door, saving you time. Even if your small office uses only $1000/year in supplies, a savings of 60% more than pays for your annual association membership fees.

Complimentary subscription to Onsite Installer Magazine.

We have partnered with Perkopolis to provide you with over 5000 exclusive perks! Perkopolis is Canada’s largest employee perk program with offers available across Canada and globally. Save on top brands including Apple, Lenovo, Adidas, Westjet, IHG Hotels and Resorts, and more.

We have partnered with two great companies, giving you options for soils testing. Take advantage of member discounts for soil sampling with either of the following companies: Down To Earth Labs (403-328-1133) or ALS Environmental Labs (306-668-8370)

Become a Member

Access membership benefits today, including training, marketing opportunities and our discount program incentives.

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