Phases III-V Detroit, Michigan – 2013-2021
The project involved the redevelopment of the largest (140-acres) public housing project, the former Herman Gardens, in Detroit, Michigan. ECS was retained for development Phases III through V to provide pre-purchase environmental due diligence (Phase I/II/BEA) and prepare Response Activity Plans, No Further Action Reports and Documentation of Due Care Compliance reports. These efforts were associated with securing state and federal funding.
The Site was found to contain widespread heavy metals and semi-volatile compounds that exceeded the Michigan Generic Residential Cleanup Criteria for the Direct Contact exposure pathway. In addition, one area on Phase V also had volatile organic compounds that exceeded the Volatilization to Indoor Air exposure pathway screening levels.
ECS designed engineered exposure barriers to address the Direct Contact exposure pathway and designed a passive Vapor Intrusion Mitigation System (VIMS). In addition, ECS performed oversight of the installation of the systems and completed the System Prove Out program for the VIMS. This resulted in securing funding which allowed for construction of the project, which is now fully occupied.