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Superfund Site Report: SOMERSWORTH SANITARY LANDFILL
 
 
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  • Site Description
    Stage of Clean-up: Construction Underway

    Conditions at listing (December l982): The Somersworth Sanitary Landfill covers 24 acres in Somersworth, New Hampshire. Originally, the town burned residential, commercial, and industrial wastes on the site. In l950, the dump was converted to a sanitary landfill. Unknown quantities of sludges, solvents, acids, dyes, metals, laboratory or pharmaceutical wastes, and potash were deposed of at this site. Both surface water and ground water are contaminated. On-site monitoring wells detected moderate levels of CARBON TETRACHLORIDE, ethyl BENZENE, TOLUENE, and metals. Leachate was observed at the eastern edge of the site. Status (July l983): EPA recently completed a Remedial Action Master Plan outlining the investigations needed to determine the full extent of cleanup required at the site. EPA and the State are negotiating a Cooperative Agreement for a remedial investigation/feasibility study to determine the type and extent of contamination at the site and identify alternatives for remedial action. At the same time, EPA is completing a search for parties potentially responsible for wastes associated with the site.

    Sources of Contamination:
    • Landfill
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  • Threats and Contaminants
    The groundwater is contaminated with VOCS and inorganic chemicals. Sediments were found to contain low levels of ARSENIC, CHROMIUM, and LEAD. The on-site soil is contaminated with VOCS, polycyclic aromatic HYDROCARBONS (PAHS), and HEAVY METALS. Peter's Marsh Brook and Tate's Brook have been shown to contain VOCS and HEAVY METALS including ARSENIC and MERCURY unrelated to the landfill. Peter's Marsh Brook is considered to be the primary receptor of groundwater contamination.  More...


    Contaminants Detected

      Ground
    Water
    Surface
    Water
    Air Soil Other
    1,2-TRANS-DICHLOROETHYLENEX    
    CARBON TETRACHLORIDEX    
    CHLOROFORM X   
    ETHYLBENZENEX    
    TOLUENEXX   
    TRICHLOROETHYLENEX    


    Groundwater and Drinking Water

    Were drinking water wells shut down due to contamination? No
    Are drinking water wells potentially threatened? No
    Aquifer discharges into: Surface water
    Population served by water wells in the aquifer: 1 - 24
     
    List ground water uses.
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  • Pre-Cleanup Rankings
    EPA Hazard Ranking System scores for SOMERSWORTH SANITARY LANDFILL:

    Less Hazard National Average More Hazard
    0%         50%         100%

    Overall site:
    Surface water migration:
    Ground water migration:


    Rank Superfund sites in the U.S., NEW HAMPSHIRE, or in STRAFFORD County by EPA Hazard Ranking Scores.

    *Note: EPA's Hazard Ranking System is designed to screen and prioritize sites for the Superfund program, based on limited data available at time of listing. These scores are not based on a comprehensive risk assessment of the site and do not reflect conditions after initiation of cleanup work.
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  • Site Information
    Site Name: SOMERSWORTH SANITARY LANDFILL
    EPA ID: NHD980520225
    Address: BLACKWATER RD
    SOMERSWORTH, NH 03878
    Site Ownership: Other
    Category of Site: Landfill
    Date of Final Listing on the NPL: September 08, 1983
     
    List Standard Industrial Classifications (SIC) associated with current and past activities at the SOMERSWORTH SANITARY LANDFILL Superfund site.
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  • Potentially Responsible Party (PRP) Involvement
    Number of PRPs currently associated with this site: 33
    Hazardous waste received from off-site generators/transporters? Yes
    Number of past and present PRPs who contributed less than 1% of the waste: 0
    Number of owners/operators which are also municipalities: 1

    List Potentially Responsible Parties identified by U.S. EPA as associated with the SOMERSWORTH SANITARY LANDFILL Superfund site.
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