Since its establishment in 1999, the Ontario Onsite Wastewater Association has been dedicated to providing access to a large network of onsite wastewater professionals. Our members are at the front lines of rural development, supporting onsite systems as sustainable, affordable and permanent wastewater servicing options.

An Industry Professional’s Guide to Membership – Download

OOWA’s volunteers work with government ministries and agencies by ensuring wise policies are developed and implemented to help protect Ontario’s environment and the health of its residents.

OOWA has over 500 members and growing while addressing the most important topics in the wastewater industry today. Our membership is made up of a wide array of industry professionals, including:

Installers iconInstallers
Engineers iconEngineers & Designers
Students iconStudents & Academics
Precaster iconsPrecasters
Regulators IconRegulators
Manufacturers IconManufacturers & Suppliers
Maintenance IconMaintenance Providers & Pumpers

To encourage young people to consider a career in the onsite wastewater industry, OOWA is now offering memberships to students at no charge. This free membership gives students access to all the benefits of OOWA membership as well as an excellent opportunity to learn more about the industry and to connect with professionals.

Special rates for Young Professionals are also available. This membership is for individuals under the age of 30, who are between graduating and securing their first job or for those who are just breaking into the industry and want to contribute while connecting with established professionals.


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.

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There are two ways to join:

  1. Follow this link to our online membership portal, create a log-in and then proceed to register and pay with a credit card or request an invoice. This portal then becomes your interface with the association where you can renew your membership and register for our events.
  2. Complete and return the membership form (below) via email or mail.

Please contact us if you have any questions or would like more information.

* Important Note! Membership fees are in Canadian Dollars and are non-refundable. We accept payments by Visa, Mastercard, direct deposit, e-transfer and cheque.

Membership Benefits

OOWA is proud to offer its members a wide suite of benefits.

OOWA’s  Communications Products

In addition to the discounted services and products list below, members also get access to our publications.

On the first of every month, our members receive an e-Bulletin that provides regulatory updates, details on emerging industry trends, and a list of skills development courses provided by our education partners.  Being a member means being in the know about your industry.

‘Onsite’ is our association’s tri-annual print newsletter.  It is distributed both digitally and in hard copy to our 550+ members. It is the only publication in Ontario that addresses the onsite and decentralized wastewater industry. ‘Onsite’ features member profiles, case studies, technical articles and industry updates.


Perkopolis is a discount program with hundreds of available discounts across the country on things like entertainment, car rentals, hotel stays, electronics, flights, food, wellness and attractions. To sign up, visit and use your OOWA Member ID to create an account.

OOWA Insurance Program

The OOWA Insurance Plan is administered by SeptiGuard, a company within the Verge Group which has been in business since 1953 as an independent broker. Coverage includes: General Liability, Pollution/ Environmental, Impairment/ Underground tank policies, Contractors Equipment, Barging and Waterborne Risks, Professional Liability (Errors and Omissions) for inspectors, designers etc., Vehicle/ Fleet coverage and Discount Home and Auto rates.  Get more details by visiting the OOWA Insurance Program website or by checking out the information flyer below.  To get a no-obligation quote, contact Scott McMullen at 1-866-717-7889 or via email at contact[@]

Insurance Program Flyer (PDF)

Imagewear by Mark’s

With your Pay-As-You-Go Discount Card get 10% off the following items and more at any Mark’s; Carhart merchandise, Dakota Workware, Coveralls and Overalls, casual wear, work gloves and all CSA footwear.  Discounts are also available on some bulk orders.  Contact Carol Hickey, Imagewear Corporate Sales Manager at 647-267-3530 for more details or check out the benefit letter below.

Imagewear by Mark’s Benefit Letter (PDF)

Enterprise Rental Car

OOWA Members get guaranteed and discounted rates on car and truck rentals.
Enterprise Benefits Letter (PDF)

Grand & Toy

OOWA’s partnership with G & T provides preferred pricing on 240 commonly consumed essentials, plus 10% off market competitive web pricing. Each member can add a customized price list of up to 25 items reflecting your business needs. Receive an additional 10% off your purchases for the first 90 days. Your savings could easily offset OOWA membership dues!
Grand and Toy Benefits Letter (PDF)

Ontario Rural Wastewater Centre

Get 10% of any ORWC Course offerings (cannot be used in conjunction with other discounts).  See their course offerings here or contact ORWC at 519-824-4120 Ext. 52040.

Canadian Automobile Association (CAA)

A new CAA Plus membership is reduced to $99.00 for the first year ($39.00 savings!) or a CAA Plus Associate Membership is reduced to $75.00 for the first year.  Contact our Corporate Representative at 1-800-267-6394 ext. 6394 to sign up.

CAA Offer Letter (PDF)               CAA List of Partners (PDF)

OOWA Job Board

We advertise your job postings to our 500+ members on our OOWA Job Board

Affiliated Association Member Rates

OOWA collaborates with other associations in communicating to government with one united voice on issues that are of mutual concern to our industries.  OOWA is proud to inform our members that you can now access membership rates for events provided by our association partners: