Brownfield Site Redevelopment
The former Garbose Metal property is a brownfield site where a recyclable metal salvage yard operated from 1958 to 1998. Testing found contamination on a significant portion of this 10+ acres property. Those impacts include PCBs, heavy metals, and petroleum compounds extending to two on-site stream channels. The site is part of the City’s Mill Street Corridor Redevelopment Project and is scheduled to be redeveloped for commercial use.
Tighe & Bond provided Licensed Site Professional (LSP) services, site/civil engineering, and wetlands permitting services for this project. LSP and environmental consulting services have included:
- Phase I due diligence
- Phase II sampling
- Phase II, III, and IV reporting to Massachusetts Department of Environmental Protection (MassDEP) under the MCP
The Phase IV cleanup plan includes EPA TSCA regulations for addressing the PCB impacts. Our findings indicated that over 30,000 cubic yards of soils polluted with PCBs and other contaminants (heavy metals, petroleum compounds) were above regulatory thresholds across 5 acres, with an additional 650+ cubic yards of sediments present in two stream channels. The groundwater table had an isolated area of floating petroleum product identified at the location of a former automobile crushing operation.
The cleanup plan included:
- Removing the most contaminated soils for off-site disposal
- Removing impacted sediments for consolidation on-site
- Consolidating the footprint of the remaining soil impacts
- Capping of the area
- Completing HBMA abatement
Our team also oversaw permitting for the cleanup, including the Massachusetts Environmental Policy Act (MEPA) with an Environmental Notification Form submittal.
Other permitting included were:
- Notice of Intent under the Massachusetts Wetlands Protection Act
- Section 401 Water Quality Certification
- Section 404 of the Clean Water Act
Tighe & Bond called on their environmental consultants and engineers to provide site/civil engineering, wetlands permitting, and the cleanup of contaminated soils as part of the Mill Street Corridor Redevelopment Project. The project team formed multi-step plans to ready the site for future commercial use.