List of Superfund sites in Montana

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This is a list of Superfund sites in Montana designated under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) environmental law. The CERCLA federal law of 1980 authorized the United States Environmental Protection Agency (EPA) to create a list of polluted locations requiring a long-term response to clean up hazardous material contaminations.[1] These locations are known as Superfund sites, and are placed on the National Priorities List (NPL). The NPL guides the EPA in "determining which sites warrant further investigation" for environmental remediation.[2] As of March 10, 2011, there were 16 Superfund sites on the National Priorities List in Montana.[2] One additional site has been proposed for entry on the list.[2] No sites have yet been removed from the list following clean up.[2]

Superfund sites[edit]

  Proposed for addition to National Priorities List
CERCLIS ID Name County Reason Proposed[3] Listed[4] Construction
MTD093291599 Anaconda Copper Mine Smelter and Refinery Cascade Soil and surface water contamination by arsenic, lead and other heavy metals.[8] 04/03/2010 03/10/2011
MTD093291656 Anaconda Co. Smelter Site Deer Lodge Soil and groundwater contamination by arsenic, copper, cadmium, lead and zinc.[9] 12/30/1982 09/08/1983
MTD982572562 Basin Mining Area Jefferson Mine wastes contaminated Basin and Cataract Creeks and the soils within the town of Basin. Contaminants include arsenic, cadmium, copper, lead and other metals.[10] 07/22/1999 10/22/1999
MT6122307485 Barker Hughesville Mining District Cascade and Judith Basin Ground water, sediment, surface water, and soils are contaminated with metals including zinc and arsenic.[11] 12/1/2000 09/13/2001
MTD986066025 Burlington Northern Livingston Shop Complex Park Petroleum hydrocarbons and volatile organic compounds have contaminated the soil and the Livingston Aquifer.[12][13] 08/23/1994
MT0001096353 Carpenter-Snow Creek Mining District Cascade Groundwater, soil and watercourse contamination by arsenic and heavy metals.[14] 12/1/2000 09/13/2001
MTD006230346 East Helena Lewis and Clark Soil, surface water and groundwater contamination by lead, other heavy metals and arsenic at ASARCO lead smelter.[15] 09/08/1983 09/21/1984
MT0012694970 Flat Creek IMM Mineral Soil, groundwater and surface water contamination by arsenic, antimony, lead and manganese from mine tailings, some of which was used as fill and construction material in the nearby town of Superior.[16] 04/09/2009 09/23/2009
MTD006232276 Idaho Pole Gallatin Groundwater, sediment, surface water and soil contamination by PCP, PAHs and dioxins from wood treatment plant.[17] 10/15/1984 06/10/1986 03/26/1998
MT0009083840 Libby Asbestos Lincoln Asbestos contamination from vermiculite processing plants.[18] 02/26/2002 10/24/2002
MTD980502736 Libby Ground Water Lincoln Groundwater, sediment, surface water and soil contamination by PCP, PAHs and heavy metals from the wood and paper industry.[19] 12/30/1982 09/08/1983 09/20/1993
MT0007623052 Lockwood Solvents Yellowstone Groundwater, sediment, surface water and soil contamination by VOCs.[20] 05/11/2000 12/01/2000
MTD980717565 Milltown Reservoir Sediments Missoula Groundwater and reservoir sediments contamination by arsenic and copper from historic mining activity.[21] 12/30/1982 09/08/1983
MTD006230635 Montana Pole Silver Bow Groundwater, sediment, surface water and soil contamination by PCP, PAHs, dioxins, and furans from wood treatment.[22] 06/10/1986 07/22/1987 09/27/2001
MTD021997689 Mouat Industries Stillwater Soils and groundwater were contaminated with hexavalent chromium.[23] 10/15/1984 06/10/1986 09/27/1996 proposed
MTD980502777 Silver Bow Creek/Butte Silver Bow Groundwater, surface water and soil are contaminated with arsenic, copper, zinc, cadmium, and lead from mining and smelting. Silver Bow Creek and the Clark Fork River contain metals from the cities of Butte to Milltown. Mine tailings in the creek and river have caused fish kills in the river.[24] 12/30/1982 09/08/1983
MTSFN7578012 Upper Tenmile Creek Lewis and Clark Heavy metal and arsenic contamination from mining.[25] 07/22/1999 10/22/1999

See also[edit]


  1. ^ P.L. 96-510, 42 U.S.C. §§ 96019675), December 11, 1980.
  2. ^ a b c d "National Priorities List". United States Enivironmental Protection Agency. Retrieved March 10, 2011. 
  3. ^ "Proposed NPL sites". EPA. Retrieved 2010-05-01. 
  4. ^ "Final NPL sites". EPA. Retrieved 2010-05-01. 
  5. ^ "Construction Completions at NPL sites". EPA. Retrieved 2010-05-01. 
  6. ^ "Partial deletions at NPL sites". EPA. Retrieved 2010-05-01. 
  7. ^ "Deleted NPL sites". EPA. Retrieved 2010-05-01. 
  8. ^ "ACM Smelter and Refinery". EPA. Retrieved 2010-04-30. 
  9. ^ "Anaconda Co. Smelter". EPA. Retrieved 2009-12-19. 
  10. ^ "Basin Mining Area". EPA. Retrieved 2009-12-19. 
  11. ^ "Barker Hughesville Mining District". EPA. Retrieved 2009-12-09. 
  12. ^ "Burlington Northern Livingston Shop Complex Superfund site progress profile". EPA. Archived from the original on June 16, 2011. Retrieved May 2, 2010. 
  13. ^ "Burlington Northern Livingston Shop Complex NPL site narrative". EPA. Retrieved May 2, 2010. 
  14. ^ "Carpenter-Snow Creek Mining District". EPA. Retrieved 2010-04-30. 
  15. ^ "East Helena". EPA. Retrieved 2010-04-30. 
  16. ^ "Flat Creek Iron Mountain Mine and Mill". EPA. Retrieved 2010-04-30. 
  17. ^ "Idaho Pole". EPA. Archived from the original on 2010-05-14. Retrieved 2010-04-30. 
  18. ^ "Libby Asbestos". EPA. Retrieved 2010-04-30. 
  19. ^ "Libby Ground Water". EPA. Retrieved 2010-04-30. 
  20. ^ "Lockwood Solvents Ground Water Plume Site". EPA. Retrieved 2010-04-30. 
  21. ^ "Milltown Reservoir Sediments". EPA. Archived from the original on 2009-12-24. Retrieved 2009-12-19. 
  22. ^ "Montana Pole and Treating Plant". EPA. Retrieved 2009-12-19. 
  23. ^ "Mouat Industries". EPA. Retrieved 2009-12-19. 
  24. ^ "Silver Bow Creek/Butte Area". EPA. Retrieved 2009-12-20. 
  25. ^ "Upper Tenmile Creek". EPA. Retrieved 2010-04-30. 

External links[edit]