acm smelter and refinery

RIVER ROAD NORTH, 1 MILE EAST OF 15TH ST

The site is a former metals refinery adjacent to the unincorporated community of Black Eagle along the Missouri River in Cascade County, Montana. The city of Great Falls is located across the Missouri River from the site. The Boston & Montana Consolidated Copper and Silver Mining Company began construction of the first smelter at the 427-acre metals refinery site in 1892, which was operated by many in the adjacent community of Black Eagle. Primary products from activities at the site were copper, zinc, arsenic and cadmium. Operations began in 1893 when ore from mines in Butte, Montana was concentrated, smelted and refined. Electrolytic and furnace refineries also operated at the site. The property was acquired by Anaconda Copper Mining Company in 1910. Copper was made into commercially useful shapes. Smelting and refining activities continued at the facility until the early 1970s. The property again changed hands in 1977, when these holdings were purchased by Atlantic Richfield Company (ARCo). The plant began closure in 1973. ARCo has conducted minor cleanup of the former facility, and the site has never been under an approved cleanup program with the EPA or state. Only a recycling facility and golf course currently remain on site.

Hazardous Ranking Score

54 / 100

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

Regional Contact

Region 8
Phone: (303) 312-6312

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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

        3,278

        People living
        within a 1 mile radius

        $35,936

        Average Income

        1,378

        Occupied homes

        Potentially Responsible Parties

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