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Waste Site Cleanup & Reuse in New England

Navy Yard Mill Site

Former Navy Yard Mill Site

At the request of the Mass. Dept. of Environmental Protection (MADEP), EPA in Oct. 2008 investigated contamination in several buildings at the former Navy Yard Mill site in Dracut. In Dec. 2008, EPA collected soil, groundwater, soil gas, indoor air and asbestos samples. Follow up sampling was conducted in Jan. 2011, April 2011 and July 2011. Results confirmed high levels of vapors of PCE, TCE and other volatile organic compounds (VOCs) above acceptable levels in buildings, soil and groundwater. Groundwater contamination exceeding health standards was found in samples across the site, and threatened Beaver Brook. The cleanup plan called for treatment through a chemical oxidation system. Air sampling showed levels that were significantly higher than acceptable.

EPA installed six injection wells in various buildings, removed parts of one basement's concrete floor and excavated and removed contaminated soils. EPA consulted with the federal Agency for Toxic Substances and Disease Registry (ATSDR), which recommended taking immediate steps to stop or reduce exposures to tenants. With help from the U.S. Army Corps of Engineers, EPA relocated two tenants, one off-site and the other to different office space on-site. Pipe cavities under the floor were filled and floors were sealed in both buildings to prevent vapor infiltration and to allow the soil vapor extraction (SVE) unit to operate properly. New heating and air units were put into the two buildings, creating a controlled space to allow fresh air intake and exhaust of indoor air to assist in the prevention of vapor intrusion. An automatic fan was installed one building's basement at the site of the original TCE/PCE spill. One building was demolished to help control vapors entering into occupied buildings. Another building was renovated and tenants returned. This work was finished in April, 2013. Final indoor air samples were collected on June 24, 2013. MADEP will continue to manage the site.

Location: Dracut, MA
EPA Mobilization Date*: 11/28/2011
EPA Demobilization Date*: 06/24/2013
Contact: Claudia Deane (deane.claudia@epa.gov)

*The information contained on this website is merely informational; any dates found on the website cannot be relied upon to create any rights, substantive or procedural, enforceable by any party in litigation with the United States. EPA reserves the right to change such dates at any time without public notice.

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