Samuels & Associates
6 months to 1 year
Greater than $10 Million
J. Derenzo Co. and Boston Environmental completed site work, utilities installation, drainage, roadway construction and a full site clean up at Hingham Shipyard as part of the redevelopment of the former ship yard into a mixed use retail and residential community
J. Derenzo Co. was involved with all aspects of both the on-site and off-site utilities installation. The company installed approximately 34,340 linear feet of public water and sewer lines in addition to 28,900 linear feet of drainage lines. The team cleaned and tested the new lines to ensure compliance with the project specification. J. Derenzo Co. also constructed 12,000 linear feet of new roads, which included all rough and final grading, drainage utilities, traffic signals and signage, asphalt paving, curbing and installation of pedestrian sideways. This portion of work encompassed The team developed the traffic plans used to maintain the heavy traffic flow and ensure the safety of workers and general public.
J. Derenzo Co. reconstructed the existing Coast Guard wooden pier, which involved the complete reconstruction for 250 linear feet of wooden pier into the harbor. All of the work was performed while the marina and 1,700-car MBTA Park and Ride parking lot remained operational. To maintain uninterrupted parking lot access, J. Derenzo Co. installed extensive traffic controls and detour signage.
J. Derenzo Co. worked closely with the Town of Hingham Water and Sewer Department throughout the project.
Boston Environmental cleaned up materials disposed during the 1940s and 1950s from shipbuilding operations and during the operation of an on-site incinerator. Boston Environmental removed and properly disposed of PCB-contaminated soils and debris from a former dumping ground on the shipyard property. 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 PCBs 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 in four weeks, under budget and ahead of schedule. 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 two 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.
With the site cleared and infrastructure complete, the new Hingham Shipyard includes: