Crosstown Center Soil Remediation and Underground Storage Tank Removal
Location: Boston, Massachusetts
Context: Real Estate Remediation
The Crosstown Center occupies 6 acres and is adjacent to the Boston Medical Center. Historically, the site has been occupied by several gasoline stations and several lead manufacturers, including paint pigment manufacturers and plumbing equipment suppliers. The Crosstown Center site development plan includes a premier office, rental, and hotel; however, the value and safety of the site was diminished considerably by the assumed use limitations and liabilities associated with environmental and infrastructure costs.
TerraSure Development, LLC performed the environmental assessment. Our firm discovered that the levels of contamination in soil hotspots were above the Massachusetts Contingency Plan (MCP) upper concentration limits (UCL) and posed significant risks to public welfare and the environment. The contaminants were lead, polycyclic aromatic hydrocarbons, and extractable petroleum hydrocarbons. Our firm, using the Method 3 risk characterization, identified significant soil, air, and groundwater risks.
Our firm prepared a feasibility study incorporating the concepts and standards specified in the MCP, and the selected method to perform the remediation involved soil hotspot and underground storage tanks (UST) removal, followed by on-site treatment and chemical stabilization, off-site recycling or on-site reuse, and institutional control. The remedial action was implemented through a release abatement measure (RAM) plan. An integral part of the RAM plan was the excavated soil and material management plan to stipulate the procedures for safe handling, treatment, and disposal of contaminated soil and excavated materials, during the remediation and construction phases.
Our firm’s guaranteed fixed-price remediation (GPRR) approach provided protection from cost overruns, as well as insurance against long-term environmental liabilities. Unforeseen and potentially expensive challenges were encountered during the remediation, and our firm was able to overcome each challenge at a fixed price, without submitting change orders. The GFPR strategy resulted in early site closure that was obtained in a third less time than the conventional remediation approach.