Perfect World

Superfund / Arizona

NPL Site · EPA Region 9

Williams Air Force Base

Chandler, Maricopa County, Arizona

Industry (inferred)Defense, Aerospace & Federal
Military installation
EPA IDAZ7570028582
HRS score37.93
ProposedJuly 14, 1989
ListedNovember 21, 1989
Construction complete
Deleted

Regulatory timeline

  1. July 14, 1989Proposed for the NPL
  2. November 21, 1989Established 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. November 21, 2024Projected five-year review (reinspection), cycle 7
  2. November 21, 2029Projected five-year review (reinspection), cycle 8
  3. November 21, 2034Projected five-year review (reinspection), cycle 9

Official EPA records