Riverain Developments Inc. - Certificate of property use

A risk assessment was undertaken for this property to determine the risks that the contaminants identified in the risk assessment may pose to existing and future users and to establish appropriate risk management measures to ensure that the property is suitable for the existing residential use, as defined in Ontario Regulation 153/04 (the "Regulation"), as amended, and made under the Environmental Protection Act (the "Act").

Based on the documentation presented to the ministry in the form of risk assessment reports, the reviewers confirmed that the risk assessment has been conducted in accordance with the Act, the Regulation, and the associated guidance documents.

On March 20th, 2025, the director issued to the proponent a written Notice of the Director's Decision to accept the risk assessment relating to property in accordance with section 168.5 of the act.

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 additional measures specified 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 such 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:

• barriers to property soils, such as a fill cap and hard cap
• a barrier inspection and maintenance program
• a minimum continuous ventilation of 3.9 litres per second per square metres in the storage garage of a newly built multistory building and a future multistory building
• a passive soil vapour intrusion management system for another building
• a health and safety plan
• a soil and groundwater management plan
• restrictions on the production of plants
• an absence of groundwater use

The draft CPU number 1784-DH3SEV, which includes the section 197 Order, can be accessed from the Supporting Materials section of this notice.