Hatheway and Patterson
Mansfield/Foxboro, MA

Site Description

Hatheway and Patterson Company (HPC) site is a former wood preserving facility located in a mixed residential and industrial area in Mansfield, Bristol County, MA. The Rumford River roughly divides the 40-acre site. When HPC stopped operating in 1993, the company left abandoned wood treating solvents, chemicals, sludges, tanks, sumps and drums on-site. Releases of contaminants, including dioxins, from the facility to the Rumford River have affected fisheries and wetlands. HPC's operations and abandoned materials have caused releases of site-related contaminants to soils, ground water and surface water.

Current Site Status and Cleanup Actions to Date

• In 1993, EPA conducted a time-critical short-term cleanup action to remove approximately 100,000 gallons of liquid and solid wood-treating wastes. These wastes were shipped off-site to licensed facilities.
• A second short-term action in 2003 addressed arsenic-contaminated soil located off-site. A total of 376 tons of soil was removed, and the areas where soil had been removed were lined with geotextile and backfilled with clean soil.
• In 2005, EPA selected a long-term cleanup approach that calls for, among other actions, the excavation of 31,000 cubic yards of soil; demolition of the former manufacturing building; and long-term monitoring of ground water, surface water, fish tissue and sediment.
• Under current conditions, potential or actual human exposures are under control.

Current Funding Status

• Excavation of contaminated soil and demolition of the former manufacturing building were not funded in Fiscal Year 2008.
• To date, EPA has obligated more than $1.3 million for cleanup activities at this site.

For more information on this site, please read the Hatheway and Patterson site fact sheet (http://yosemite.epa.gov/r1/npl_pad.nsf/701b6886f189ceae85256bd20014e93d/3a9f2ae060d6521b85256aca0055688f!OpenDocument) on the Region 1 Superfund web site.