Perfect World

Superfund / Colorado

NPL Site · EPA Region 8

Marshall Landfill

Boulder County, Boulder County, Colorado

Industry (inferred)Waste Management
Landfill & dump
EPA IDCOD980499255
HRS score0.00
ProposedDecember 30, 1982
ListedSeptember 8, 1983
Construction completeAugust 25, 1993
Deleted

Regulatory timeline

  1. December 30, 1982Proposed for the NPL
  2. September 8, 1983Established on the NPL (final listing)
  3. August 25, 1993Construction completed

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. August 25, 2023Projected five-year review (reinspection), cycle 6
  2. August 25, 2028Projected five-year review (reinspection), cycle 7
  3. August 25, 2033Projected five-year review (reinspection), cycle 8

Official EPA records