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Superfund Program Implements the Recovery Act

Hatheway & Patterson

Mansfield and Foxborough, Massachusetts

Site Description
The 40-acre Hatheway & Patterson Company (HPC) site is a former wood-preserving facility located in a mixed residential and industrial area in the town of Mansfield, MA, approximately 30 miles southwest of Boston.  HPC ceased operations at the site in 1993.  However, the company left behind abandoned materials, including drip pads, treated lumber storage areas, above ground tanks and numerous underground storage tanks.  These materials have contaminated the site’s soils with dioxins, furans, phenols and metals.

Cleanup Activities to Date
In 2002, EPA listed the site on the National Priorities List.  In 1993, EPA conducted a time-critical removal action at the site.  As part of this action, EPA drummed and/or pumped into tank trucks approximately 100,000 gallons of liquid and solid wood-treating wastes, which were shipped to off-site hazardous waste disposal facilities.  In 2003, EPA conducted another short-term removal action to address nearly 400 tons of arsenic-contaminated soil located off of the site property.  EPA selected a comprehensive remedy for the site in 2005, calling for demolition of remaining on-site buildings as well as excavation and disposal of approximately 31,000 cubic yards of soil exceeding cleanup levels.      

Recovery Act Project Activity
The site work funded by the Recovery Act ($20 million) and a 10 percent cost share provided by the Massachusetts Department of Environmental Protection (MDEP) began during the late summer of 2009. The US Army Corps of Engineers (USACE) is managing the work for the US EPA.

FY2011 highlights include:

  • Some contaminated soils from the site were consolidated on-site under an asphalt cover which has been reused by the town of Foxborough, Massachusetts for a commuter rail parking lot. The remainder of the soil was disposed of off-site.
  • Monitoring of plant survival and replanting of stressed and dead plants was also conducted during this time period.
  • In addition, wells constructed during the remedial action were monitored.
  • The project was declared operational and functional by September 2011 and was turned over to MDEP for long term operation and maintenance (O&M).

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