Perfect World

Superfund / Wyoming

NPL Site · EPA Region 8

F.E. Warren Air Force Base

Cheyenne, Laramie County, Wyoming

Industry (inferred)Defense, Aerospace & Federal
Military installation
EPA IDWY5571924179
HRS score39.23
ProposedJuly 14, 1989
ListedFebruary 21, 1990
Construction complete
Deleted

Regulatory timeline

  1. July 14, 1989Proposed for the NPL
  2. February 21, 1990Established 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. February 21, 2025Projected five-year review (reinspection), cycle 7
  2. February 21, 2030Projected five-year review (reinspection), cycle 8
  3. February 21, 2035Projected five-year review (reinspection), cycle 9

Official EPA records