kerr-mcgee chemical corp. (soda springs plant)

HIGHWAY 34, 3 MILES N OF CY

The Kerr-McGee Site (Soda Springs Plant) covers 158 acres and is located one mile north of Soda Springs, Idaho. The Site lies in a broad, flat valley near the western base of the Aspen Range. Since 1963, the plant generated a number of liquid wastes and stored them in on-site ponds. The Monsanto Chemical Company, another large industrial complex nearby that also is on the NPL, supplied Kerr-McGee with the by-product, ferrous-phosphate ore, used to extract vanadium for beneficial uses. During operations, the two largest on-site ponds held 5.5 million gallons of industrial waste water and 2,500 tons of tailings. The chemicals of concern found in these ponds included vanadium, arsenic, molybdenum, manganese, tributyl phosphate and total petroleum hydrocarbons. Ground water beneath the Site has been affected by chemicals leaking from the unlined holding ponds. Approximately 23 people live within one mile of the Site, and the city of Soda Springs, with about 3,000 people, is within 3 miles of the Site. Significant agricultural crops in the area include wheat and hay. Investigations have shown that neither Soda Springs public drinking water supplies nor private wells are impacted by releases from the Site. Site Responsibility: This site is being addressed through federal oversight by EPA. Property formerly owned by Tronox Inc. LLC (successor to Kerr-McGee) near Soda Springs is currently owned and maintained by the Greenfield Environmental Multistate Trust LLC (Trust) for the benefit of the United States and the State of Idaho. The Trust is responsible for activities related to the Site.

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

        25

        People living
        within a 1 mile radius

        $58,045

        Average Income

        7

        Occupied homes

        Potentially Responsible Parties

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