Lo-Hingham Shipyard
Project: Hingham Shipyard PCB Area Clean-up
Client: Lennar Hingham Holdings, LLC
Contract Value: $2,800,000
Project Completed: August – September 2006
Boston Environmental recently completed a fast-track project for Lennar Hingham Holdings (LLH), LLC at the Hingham Shipyard located off Route 3A in Hingham.The former shipyard is being redeveloped by a consortium of five developers (Samuels, Avalon, Roseland, Sea Chain and MBTA) into a mixed-use development. The complete project will include the following:
- 650,000 square feet of retail use
- 15 to 20 restaurants
- 4000 units of housing and condominium housing
- 1500 units of rental housing
- 2 public parks
- Rehabilitation of MBTA commuter boat docks and parking facilities
- New marina
- 3 miles of new roadways, parking lots, all new utilities
The area being cleaned up by Boston Environmental on the Roseland parcel consisted of materials disposed during the 1940’s and 1950’s from shipbuilding operations and during the operation of an on-site incinerator. Boston Environmental was contracted to remove and properly dispose of PCB-contaminated soils and debris from a former dumping ground on the shipyard property where LHH plans to develop residential properties. The PCB-area contained two distinct areas with respect to cleanup requirements; areas where PCB levels were between 2 and 50 parts per million (ppm) and areas where PCB’s exceeded 50 ppm. In addition, some of the materials contained levels of leachable lead requiring treatment to render them non-RCRA.
Boston Environmental completed the cleanup within 4 weeks. Over 6,000 tons of soils with PCB levels greater than 50 ppm were excavated under an EPA Self-Implementing Plan and shipped via rail to a TSCA - landfill in Indiana. An additional 8,200 tons of material with PCB levels between 2 and 50 ppm were shipped to a recycling facility and a landfill, based on the physical condition of the material.
TSCA level materials were cleaned up under an EPA Self-Implementing Plan, and the remainder of the site was cleaned up via a Release Abatement Measure (RAM) Plan under Massachusetts Department of Environmental Protection’s Massachusetts Contingency Plan (MCP) requirements. The work was completed both quicker than scheduled and below the project budget.
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