Superfund Site Designation

Montana has nine Superfund sites the EPA has designated:

• Bozeman-Idaho Pole plant, penta leaks into ground and groundwater.
• Butte, Anaconda-mining waste from 150 years of mining reaching to Milltown dam.
• Butte-Montana Pole and Treatment Plant.
• Anaconda-smelter site and mine waste settling ponds.
• Milltown-toxic waste seeping in water wells from Milltown dam near Missoula.
• Sommers-Burlington Northern Railroad wood treatment plant at north end Flathead Lake.
• Libby-Champion International mill.
• Columbus-Mowat mine and chromium pollution.
• East Helena-ASARCO, American Smelting and Refining Co. on Prickly Pear Creek.

There are 211 Superfund sites recognized by the State of Montana that are not federally designated sites, including:

• Railroad fueling facilities.
• Old oil refinement plants.
• Post and pole treatment plants.
• Toxic spill sites.
• Unauthorized toxic waste disposal sites.