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Mansfield Trail Dump Site
Byram Township, NJ

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Public Meeting

Next CAG Meeting is scheduled for Monday, Oct. 20, 2014 at 7 pm at the Byram Twp. Municipal Building.

Your Community
Involvement Coordinator

Pat Seppi (212) 637-3679
seppi.pat@epa.gov

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TCE contamination was first discovered in a Brookwood Road home during a routine water test as part of a real estate transaction. In 2005, the Sussex County Health Department and New Jersey Department of Environmental Protection (NJDEP) sampled 75 private wells along Brookwood and Ross Roads in Byram Township. Sampling results found that 18 of the residential drinking wells were contaminated by trichloroethylene (TCE), a colorless liquid typically used in industrial processes.

In an effort to locate the source of the contamination and to protect public health, NJDEP identified four areas of concern (AOCs) within various dump trenches in a wooded area where sludge from an unknown origin was disposed of, causing groundwater contamination and affecting a number of homes in an adjacent residential neighborhood.  Sampling results in one of the dump areas and monitoring wells on-site found evidence of TCE above state screening levels in two of the four trenches, along with other volatile organic compounds.  NJDEP collected further samples from the soil underneath and inside of basements across the affected neighborhood, where they discovered that some homes and soil beneath certain basements showed elevated TCE levels.

In response to their findings, NJDEP installed carbon water filtration and treatment systems in 17 homes to remove contaminants from the drinking water. Additionally, NJDEP installed sub-slab depressurization systems to safely vent vapors to the atmosphere in the five homes that tested positive for air pollutants.

EPA's Involvement

After receiving a letter from the State of New Jersey supporting the inclusion of the Mansfield Trail Dump site on the Superfund list, EPA collected residential well samples from 21 homes as part of the Hazard Ranking System (HRS) package to document off-site contamination. EPA confirmed the presence of TCE in 15 of the residential wells, which serve 56 residents in the Brookwood and Ross Roads neighborhood.

On October 21, 2010, The Mansfield Trail Dump site was proposed to the National Priorities List (NPL) of sites with known or threatened releases of hazardous substances, pollutants, or contaminants. EPA periodically proposes sites to the Superfund list, and after responding to public comments, designates them as final Superfund sites, enabling them to be eligible to receive funds to conduct long-term cleanups.

The site was listed as final on the NPL on March 10, 2011.



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