RSG Oakville Holdings Inc. - Certificate of property use

A risk assessment was undertaken for this property to establish the risks that the contaminants identified on the property may pose to future users and to identify appropriate risk management measures to be implemented to ensure that the property is suitable for the following intended uses: “Residential Use”, “Parkland Use”, “Commercial Use”, “Community Use” and/or “Institutional Use”, as defined by O. Reg. 153/04 (the "Regulation"), as amended, made under the Environmental Protection Act (the "Act").

Based on the documents provided to the Ministry as part of the risk assessment report, the reviewers confirmed that the risk assessment has been conducted in accordance with the Act, the Regulation, and the associated guidance documents.

The Director provided the proponent with written Notice of the Director’s Decision to accept the risk assessment relating to the property in accordance with s.168.5 of the Act on September 4, 2025.

The Director is considering issuing a Certificate of Property Use (CPU) in relation to the property. The CPU incorporates the risk management measures proposed in the risk assessment and other conditions proposed by the Director. A Section 197 Order is included and requires that a certificate be registered on the property title in accordance with section 197 of the Act and that before dealing with the property in any way, a copy of the CPU must be given to any person who will acquire an interest in the property.

The proposed risk management measures include:

• property use restrictions
• maintaining a barrier to site soils
• building construction restrictions for future buildings on the property to address the soil vapour intrusion pathway
• building construction requirements to mitigate ongoing migration of contaminated groundwater off the property
• implementing an indoor air quality monitoring program, or a sub-slab vapour monitoring program
• requirement that all underground utilities be constructed in a manner so as to prevent migration of contaminants of concern within the backfilled utility trench
• restrictions on using ground water for potable purposes
• implementing a health and safety plan
• implementing a soil and ground water management plan
• reporting requirements
• requirement to provide financial assurance

The proposed draft CPU No. 2664-DLBJW5 including the Section 197 Order, is provided as a link under the Supporting Materials section of this notice.