sylvester

GILSON RD

The 28-acre Sylvester hazardous waste dump site is located in a rural, residential area of Nashua, New Hampshire. The site was operated as a sand borrow pit for an undetermined number of years. During the late 1960s, after much of the sand had been removed from the property, the owner began an illegal waste disposal operation within a six-acre portion of the site apparently intending to fill the excavation. Household refuse, demolition materials, chemical sludges, and hazardous liquid chemicals were dumped at the site. The household refuse and demolition materials usually were buried, while the hazardous liquids were allowed to percolate into the ground adjacent to the old sand pit or were stored in steel drums that were placed on the ground. Approximately 1,000 people live in an adjoining mobile home park. The site is adjacent to Lyle Reed Brook, which flows through the trailer park and enters the Nashua River, a source of drinking water. The Merrimack River is 11 miles downstream and is also a source of drinking water.

Hazardous Ranking Score

0 / 100

A score of 28.5 or higher qualifies a site for the Superfund National Priority List.

Regional Contact

Region 1
Phone: (888) 372-7341
Fax: (617) 918-0101

Outside New England:
(617) 918-1111

Contact Region

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Timeline

Discovery
Site Inspection
Preliminary Assessment
Final Listing On NPL
Removal

Contaminants & Health Effects

      Carcinogen
      Endocrine Disrupter
      Neurotoxic
      Sensitiser
      Reproductive Toxin
      Persistent, bioaccumulative and toxic
      VOC
      Mutagen

        Census

        White
        African American
        Asian
        American Indian and Alaska Native
        Native Hawaiian
        Other

        3,240

        People living
        within a 1 mile radius

        $93,635

        Average Income

        1,387

        Occupied homes

        Potentially Responsible Parties

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