MCP Response Actions

Concord, MA

Project Highlights

  • LSP-of-record for MCP response actions related to historical releases of fuel oil and gasoline
  • Performed preliminary and comprehensive response actions to characterize environmental impacts, and human and ecological health risks
  • Developed MCP closure strategy to remediate environmental impacts, including insitu methods to address impacts under a major road and office building
  • Dating back to 1998, Richard J. Wozmak, P.E., P.H., LSP, LEP has directed MCP response actions at a 600,000-gallon capacity fuel oil and gasoline storage and transfer facility related to numerous historical releases to the environment. Response actions have included:

    1. Phased site investigations to develop an understanding of the magnitude and extent of environmental impacts;
    2. Wetland characterization to delineate the wetland and magnitude of wetland impacts;
    3. Risk characterization to assess the health risks to facility workers and visitors, and ecological risks to habitat that are present in the wetland;
    4. Remedial programs including Immediate Response Actions to remove oil detected in a wetland and remedial action plans to address impacted ground water and non-aqueous-phase oil in the subsurface.

    An iterative approach to environmental characterization was performed whereby initial environmental data was collected and used to direct subsequent data collection needs. This approach was taken to minimizing the risk of collecting data that was later determined to be unnecessary, thus reducing the overall investigation costs to the client.  At each phase of the characterization, a Conceptual Site Model (CSM) was developed that included a representation of the environmental system and distribution of environmental contamination. The CSM was used to identify unsuspected releases, pathways of contaminant migration, potential human and ecological receptors, and ultimately, human and environmental risk.

    The CSM was an important tool in minimizing the collection of unnecessary data, in selecting the most appropriate remedial action plan, and in developing a focused risk characterization study. The CSM was also an important element in demonstrating the nature of historical releases and the cost-magnitude of the environmental damage for use by the Massachusetts Department of Environmental Protection and the facility’s insurance company in handling this site.