Since 1957, the North East Mental Health Centre (NEMHC) located in North Bay, Ontario, has been used as a long-term health care facility. In 2011, as part of an expansion plan to accommodate 275 acute care beds, an expanded emergency department and a consolidated ambulatory care centre, construction of facilities were undertaken at a new location. As part of decommissioning the old NEMHC property, Cole Engineering was retained to conduct Environmental Phase I and II Studies and a Designated Substance and Hazardous Materials Survey (DSHMS) to address and mitigate potential risks associated with the land use and the building structures.
To meet the Terms of Reference (ToR) of the project, Cole Engineering conducted a comprehensive environmental study of the NEMHC property, including the existing structures. Part 1 of this assignment included a DSHMS Survey, a Phase I Environmental Site Assessment (ESA) and a Phase II ESA. Part 2 involved the development of a decommissioning and remediation plan to address the abatement of designated substances and remediation of contaminated soil and groundwater. Abatement involved removal of Asbestos-Containing Materials (ACMs) & other hazards throughout the facility. A Remedial Action Plan (RAP) was developed to evaluate each of the Areas of Potential Environmental Concerns as well as the feasibility of available remedial options. Based on the feasibility study, it was recommended that the most practical and efficient way of managing contaminated soil and groundwater was through a combination of bulk excavation and risk management strategies. During decommissioning, Cole Engineering supervised the demolition and remediation activities throughout the implementation of the plan and successfully completed all aspects of the ToR for the assignment. A total of 858 tonnes of contaminated soils were removed from the site.