Perfect World

Superfund / Montana

NPL Site · EPA Region 8

ACM Smelter and Refinery

Black Eagle, Cascade County, Montana

Industry (inferred)Mining & Ore Processing
Smelting & refining
EPA IDMTD093291599
HRS score54.26
ProposedMarch 4, 2010
ListedMarch 10, 2011
Construction complete
Deleted

Regulatory timeline

  1. March 4, 2010Proposed for the NPL
  2. March 10, 2011Established on the NPL (final listing)

Projected reinspection cycle

CERCLA requires a five-year review while hazards remain on site. These dates are projected from this site's cleanup timeline — they are estimates, not EPA-published dates. Check the site progress profile for the actual review schedule.

  1. March 10, 2026Projected five-year review (reinspection), cycle 3
  2. March 10, 2031Projected five-year review (reinspection), cycle 4
  3. March 10, 2036Projected five-year review (reinspection), cycle 5

Official EPA records