OOWA has taken our most requested homeowner resources and most visited webpages and provided access to them all on one page! We welcome you to print copies for display or distribution. If you would like to request professionally printed copies, email us at info@oowa.org. […]
Industry Partners To Release New Septic System Safety Resources During Septic Awareness Week
Collaborative checklists and public education brochure respond to Chief Coroner Review recommendations and reinforce shared responsibility for septic safety. The Ontario Onsite Wastewater Association(OOWA), Concrete Precasters Association of Ontario (CPA), and the Ontario Association of Sewage Industry Services (OASIS), have developed two new septic system safety resources to help strengthen public awareness, clarify industry best […]
Another New OOWA Guidance Document: Means of Detection
OOWA’s new Means of Detection guidance document helps ensure onsite sewage system components can be accurately located for future maintenance, repairs, and property development activities. The publication explains Ontario Building Code detection requirements and provides recommendations on the use of tracer wire, magnetic markers, and other locating methods. By improving the ability to identify buried system components, […]
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New OOWA Guidance Document: Greywater Systems
This much-anticipated addition to OOWA’s Guidance Document Series, produced by the OOWA Onsite Technical Committee, provides practical information on greywater systems in Ontario, including regulatory requirements, design considerations, system configurations, and emerging trends in water reuse. […]
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OOWA Submits Comments on Proposed 2026 Ontario Building Code Changes for Combined Treatment and Dispersal Systems
On direction from the Board of Directors, OOWA struck a task group to review the proposed 2026 Ontario Building Code Part 8 changes related to Combined Treatment and Dispersal Systems. The task group brought together a cross-section of member perspectives from across the onsite wastewater industry, with a focus on helping ensure the proposed code […]
OOWA Welcomes a New Membership Coordinator
OOWA is excited to introduce the newest member to our team, Lance Nachoff, who will be taking on the role of Membership Coordinator. Born and raised in Toronto, Lance has been proud to call Millbrook home for the past 16 years. Lance brings a diverse skill set and broad knowledge base to this position, having worked […]
OOWA Releases 2026–2030 Strategic Plan
OOWA is pleased to share our 2026–2030 Strategic Plan with the membership. This plan represents a comprehensive planning effort by the Board of Directors, OOWA committees, and staff to define the Association’s priorities and direction for the next five years. Informed by Member Insight The development of the 2026–2030 Strategic Plan was informed by a […]
Ontario Building Code Updates
April 20, 2026 The Minister of Municipal Affairs and Housing has amended Ontario’s 2024 Building Code (OBC) to clarify requirements and create greater certainty in building permit and inspection processes. The following changes surrounding Part 8 of the OBC came into effect on April 20, 2026:1. Clarifying technical requirements for pipes when leaching chambers are used […]
OOWA Releases Draft Standardized Forms
When applying for an Ontario Building Code (OBC) sewage system permit, the OBC prescribed application forms satisfy regulatory requirements, but they do not capture the detailed technical information required to properly document and review a proposed sewage system. To address this gap, sewage system regulators across the province have developed their own methods for collecting […]
OOWA’s 2026 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/2026/03/2026-Post-Convention-Summary-Package-1.pdf […]
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OOWA’s 2026 Convention edition of the Onsite Newsletter out now!
In this edition you’ll find: The Test Pit Was Perfect. The Title Wasn’t.Onsite Bites – ScarificationCode Corner – Residential Occupant Load in the Design of On-site Sewage SystemsCompliance in a Wilderness Called the Little North https://www.oowa.org/wp-content/uploads/2026/03/DIGITAL-SINGLES-OOWA-Convention26.pdf […]
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