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 […]

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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 […]

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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 […]

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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 […]

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OOWA’s 2025 Convention edition of the Onsite Newsletter out now!

In this edition you’ll find: Redefining Rural Water Management in OntarioCode Change – Composting ToiletsNew feature – Onsite Bites (Microlearning articles)Installing Onsite Systems with Maintenance in Mind https://www.oowa.org/wp-content/uploads/2025/04/2025-OOWA-Convention-Newsletter-v4-Web-Spreads.pdf […]

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