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Superfund Site Report: STANDARD CHLORINE OF DELAWARE,INC
 
 
  • Map Locating Superfund Site
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  • Site Description
    Stage of Clean-up: Design Underway

    Conditions at proposal (September 18, 1985): Standard CHLORINE of Delaware, Inc., manufactures chlorinated benzenes on a 46-acre site in Delaware City, New Castle County, Delaware. In September l98l, about 5,000 gallons of MONOCHLOROBENZENE spilled from a railroad tanker car onto the Standard CHLORINE property. Subsequent testing by the company and the State has detected chlorobenzenes in on-site soils, ground water underlying the site, and Red Lion Creek, which is about 1,000 feet north of the site. Ground water within 3 miles of the site supplies private and public wells serving an estimated 152,000 people. Standard CHLORINE has retained a consultant to study the site and recommend remedial alternatives. Status (July 22, 1987): EPA's preliminary plan for fiscal year 1987 includes a remedial investigation/feasibility study (RI/FS) to determine the type and extent of contamination at the site and identify alternatives for remedial action. The State is negotiating with Standard CHLORINE to conduct the RI/FS.

    Sources of Contamination:
    • Discharge to sewer/surface water
    • Inadvertent spill
    • Waste pile
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  • Threats and Contaminants
    Chlorobenzenes from spilled material have been found in the ground water, soil, sediments, and surface water. People may be exposed to the chemicals by direct contact with contaminated soil or accidentally ingesting contaminated soil or water. Wetlands near the site are threatened by contamination emanating from the spill areas. The levels of contamination in the soils, surface water, and sediment may impact the quality of the wildlife and the ecosystems along the Red Lion Creek. Chlorobenzenes have been found in tissue of fish obtained from Red Lion Creek.


    Contaminants Detected

      Ground
    Water
    Surface
    Water
    Air Soil Other
    1,2,4-TRICHLOROBENZENE    X
    1,2-DICHLOROBENZENEXX  X
    1,4-DICHLOROBENZENE    X
    BENZENEX    
    CHLORINATED BENZENES,NOS1 X   
    CHLOROBENZENEX    


    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: 0
     
    List ground water uses.
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  • Pre-Cleanup Rankings
    EPA Hazard Ranking System scores for STANDARD CHLORINE OF DELAWARE,INC:

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

    Overall site:
    Surface water migration:
    Ground water migration:


    Rank Superfund sites in the U.S., DELAWARE, or in NEW CASTLE 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: STANDARD CHLORINE OF DELAWARE,INC
    EPA ID: DED041212473
    Address: GOVERNOR LEA RD POB 319
    DELAWARE CITY, DE 19706
    Site Ownership: Private
    Category of Site: Chemical Plant
    Date of Final Listing on the NPL: July 22, 1987
     
    List Standard Industrial Classifications (SIC) associated with current and past activities at the STANDARD CHLORINE OF DELAWARE,INC Superfund site.
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  • Potentially Responsible Party (PRP) Involvement
    Number of PRPs currently associated with this site: 6
    Hazardous waste received from off-site generators/transporters? No
    Number of past and present PRPs who contributed less than 1% of the waste: 2 - 10
    Number of owners/operators which are also municipalities: 0

    List Potentially Responsible Parties identified by U.S. EPA as associated with the STANDARD CHLORINE OF DELAWARE,INC Superfund site.
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  • Links
    EPA Site Information Scorecard reports for this site on: Scorecard reports for NEW CASTLE County on:
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