Perfect World

Superfund / Ohio

NPL Site · EPA Region 5

Chem-Dyne

Hamilton, Butler County, Ohio

Industry (inferred)Chemical Manufacturing
Pesticides & agricultural chemicals
EPA IDOHD074727793
HRS score0.00
ProposedDecember 30, 1982
ListedSeptember 8, 1983
Construction completeSeptember 11, 1992
Deleted

Regulatory timeline

  1. December 30, 1982Proposed for the NPL
  2. September 8, 1983Established on the NPL (final listing)
  3. September 11, 1992Construction 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. September 11, 2022Projected five-year review (reinspection), cycle 6
  2. September 11, 2027Projected five-year review (reinspection), cycle 7
  3. September 11, 2032Projected five-year review (reinspection), cycle 8

Official EPA records