As part of the modernization of the transit system in the Regional Municipality of York (York Region), York Region Rapid Transit Corporation (YRRTC) has undertaken plans to expand the current major roadways to accommodate rapid transit construction. Cole Engineering was retained by YRRTC to develop and execute contaminated soil and groundwater management plans in order to manage York Region’s short-term (construction) and long-term exposure to environmental risks. To meet the Terms of Reference for the assignment, Cole Engineering performed a Contaminant Overview Study (COS) and Phase II Environmental Site Assessments (ESAs). Cole Engineering also developed Remedial Action Plans (RAPs) during construction for several properties, roadways and strip widening allowances along Highway 7 in Vaughan, and Davis Drive in Newmarket.
The COS was used to identify Areas of Potential Environmental Concerns which allowed the Project Team to target specific locations for Phase II ESAs. Once the ESAs were completed, RAPs were developed to manage the clean-up of contaminated soil and groundwater at locations that exhibited
exceedances of regulatory standards. The focus of the project was to address and mitigate environmental issues during construction and also identify and manage long-term risks to the Region.