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1. Introduction
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1.1 Background
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Site Number: |
01FD |
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Contract Number: |
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D.O. Number: |
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Action Memo Date: |
3/26/2010 |
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Response Authority: |
CERCLA |
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Response Type: |
Time-Critical |
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Response Lead: |
EPA |
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Incident Category: |
Removal Action |
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NPL Status: |
Non NPL |
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Operable Unit: |
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Mobilization Date: |
11/28/2011 |
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Start Date: |
11/28/2011 |
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Demob Date: |
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Completion Date: |
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CERCLIS ID: |
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RCRIS ID: |
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ERNS No.: |
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State Notification: |
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FPN#: |
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Reimbursable Account #: |
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1.1.1 Incident Category
1.1.2 Site Description
See previous Pollution Reports for the Site.
1.1.2.1 Location
See previous Pollution Reports for the Site.
1.1.2.2 Description of Threat
See previous Pollution Reports for the Site.
1.1.3 Preliminary Removal Assessment/Removal Site Inspection Results
See previous Pollution Reports for the Site.
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2. Current Activities
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2.1 Operations Section
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2.1.1 Narrative
See previous Pollution Reports for the Site.
2.1.2 Response Actions to Date
See previous Pollution Reports for the Site.
With assistance from the U.S. Army Corps of Engineers, EPA has relocated two tenants located at the site. One tenant has been relocated from space within building #19 to an off site location. Another tenant has been relocated from building #4 to alternate office space at the site while EPA attempts to mitigate vapor intrusion issues within building #4 and an adjacent office in building #1. This tenant will be returned to building #4 when EPA mitigation activities are completed and indoor air levels for TCE and PCE no longer present a threat.
EPA continues to sample indoor air, sub slab soil gas and groundwater. Based on this data, EPA is currently assessing the need to install soil vapor extraction units at buildings #6 and 19 after mitigation activities within buildings #1 and 4 are completed.
2.1.3 Enforcement Activities, Identity of Potentially Responsible Parties (PRPs)
See previous Pollution Reports for the Site.
2.1.4 Progress Metrics
See previous Pollution Reports for the Site.
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2.2 Planning Section
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2.2.1 Anticipated Activities
EPA will continue to conduct mitigation activities within buildings #1 and 4 at the site to mitigate vapor intrusion issues which are presenting a threat to the tenants. EPA will also assess and install additional soil vapor extraction units at buildings #6 and 19, as necessary, based on the results of indoor air and sub slab soil gas data.
2.2.1.1 Planned Response Activities
EPA is continuing to conduct the following activities to address vapor intrusion pathways within buildings #1 and 4: Adjusting and reinstalling the soil vapor extraction unit; sealing of the floors and other vapor intrusion pathways; installation of HVAC units to allow a proper air exchange; sampling of indoor air to monitor TCE and PCE levels during the course of the removal action;
Other actions planned at the site: Continue sampling of sub slab soil gas, indoor air and groundwater; Assess, design and install soil vapor extraction units at buildings #6 and 19.
2.2.1.2 Next Steps
EPA will complete mitigation and relocation activities within buildings #1 and 4 by the end of February 2013. The tenant which was relocated to alternate office space at the site will be moved back to their original space within building #4 after these activities are completed.
Assessment and design options for soil vapor extraction units at buildings #6 and 19 are currently being conducted. Determination of the most appropriate options and implementation of the selected design will be implemented during Spring 2013.
The EPA OSC will continue to work with CIC and ATSDR to provide information to the public regarding the status of the removal activities and any potential threats from contamination at the site.
2.2.2 Issues
See previous Pollution Reports for the Site.
Relocation activities are completed for the off site tenant. It is anticipated that the tenant in building #4 which was relocated to alternate office space on site will be returned to their original space in February 2013.
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2.3 Logistics Section
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No information available at this time.
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2.4 Finance Section
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No information available at this time.
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2.5 Other Command Staff
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2.5.1 Safety Officer
2.6 Liaison Officer
2.7 Information Officer
2.7.1 Public Information Officer
2.7.2 Community Involvement Coordinator
The On Scene Coordinator is working closely with the EPA Regional Public Affairs and Government Relations staff to ensure the public and other appropriate government agencies are informed as to the status of EPA activities being conducted at the Site.
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3. Participating Entities
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3.1 Unified Command
3.2 Cooperating Agencies
EPA requested public health support from ATSDR and is communicating and coordinating its activities with MassDEP and the MA Department of Public Health throughout the course of the removal action.
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4. Personnel On Site
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EPA (1)
Weston Solution, Inc. (1)
Guardian Environmental Services (GES) (3)
GES subcontractors (number of personnel varies by date and subcontractor)
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5. Definition of Terms
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No information available at this time.
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6. Additional sources of information
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No information available at this time.
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7. Situational Reference Materials
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No information available at this time.
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