Former STC Property, Chelmsford, MA, Chelmsford, MA


  • Phase II Investigations
  • LSP Services
  • Hazardous Materials Survey
  • Groundwater Monitoring
  • Drilling Oversight
  • Groundwater Sampling
  • Building Demolition

Chelmsford, MA

The Silicon Transfer Corporation (STC) facility is a former electronics manufacturing company located in Chelmsford, Massachusetts, that has been deemed a disposal site due to impacts attributed to the former use and storage of solvents and petroleum during historic manufacturing operations. Nobis has provided investigation and remedial planning activities at the site under contracts with the U.S. EPA, The Town of Chelmsford, and the Massachusetts Department of Environmental Protection (MassDEP) and MassDevelopment.

Nobis was awarded a task order under EPA Region 1 Remedial Action Contract (RAC) to perform a Targeted Brownfields Assessment (TBA) at the facility. Nobis prepared a Field Task Work Plan (FWTP), Quality Assurance Project Plan (QAPP), and performed a hazardous materials building survey to evaluate the presence of asbestos containing materials (ACM), lead-based paint (LBP), and other hazardous materials within the facility. Nobis implemented a subsurface investigation on exterior portions of the site advancing soil borings, installing monitoring wells, and collecting soil and groundwater samples. Nobis prepared its findings in the TBA report which included recommendations for hazardous materials abatement and building demolition in order to easily access and further investigate subsurface conditions underneath the facility.

Nobis was subsequently retained by the Town of Chelmsford in 2011 to provide demolition oversight under a $200K EPA Cleanup Grant. In addition, the Town was awarded SARRS funding from MassDEP to complete further investigations into the source contamination area underneath the former facility. Nobis was then contracted to provide Phase II site assessment activities, and in 2011 completed an extensive subsurface investigation at the site collecting and analyzing soil and groundwater.

In Massachusetts the Brownfields Support Team (BST) Initiative was developed to help communities clean up contaminated sites and prepare them for redevelopment. The BST includes members of the MassDEP, the Executive Office of Housing and Development, and MassDevelopment. For the STC site the Town of Chelmsford is represented and Nobis Engineering serves as the LSP representative. The team allows for communication between the various offices on issues pertaining to the site including regulatory, funding, project direction, and redevelopment.

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