Perfect World

Superfund / Montana

NPL Site · EPA Region 8

East Helena Site

East Helena, Lewis and Clark County, Montana

Industry (inferred)Uncategorized
EPA IDMTD006230346
HRS score61.65
ProposedSeptember 8, 1983
ListedSeptember 21, 1984
Construction complete
Deleted

Regulatory timeline

  1. September 8, 1983Proposed for the NPL
  2. September 21, 1984Established 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. September 21, 2024Projected five-year review (reinspection), cycle 8
  2. September 21, 2029Projected five-year review (reinspection), cycle 9
  3. September 21, 2034Projected five-year review (reinspection), cycle 10

Official EPA records