seattle municipal landfill (kent highlands)

NE OF MILITARY RD AND KENT DES MOINES RD

The Seattle Municipal Landfill (Kent Highlands) site is located in the city of Kent, Washington, approximately 14 miles south of Seattle. From 1968 to 1986, the City of Seattle leased the site and disposed of refuse on about 60 acres of a 90-acre ravine located on a hillside above the Green River. In addition to municipal wastes, the landfill accepted paint residues, industrial sludge, and other industrial wastes. In 1984, contaminants reached monitoring wells, and leachate (contaminated liquids) was leaking from the eastern side of the landfill. The leachate mixed with storm water runoff was collected in a pond, which discharged into a sanitary sewer system permit by the city of Kent. Site Responsibility: This site is being addressed through state and municipal actions.

Hazardous Ranking Score

52 / 100

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

Regional Contact

Region 10
Phone: (800) 424-4372

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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

        10,440

        People living
        within a 1 mile radius

        $75,987

        Average Income

        4,364

        Occupied homes

        Potentially Responsible Parties

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