Perham Arsenic Site

Regulatory timeline

1. September 8, 1983Proposed for the NPL
2. September 21, 1984Established on the NPL (final listing)
3. September 29, 1998Construction 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 29, 2023Projected five-year review (reinspection), cycle 5
2. September 29, 2028Projected five-year review (reinspection), cycle 6
3. September 29, 2033Projected five-year review (reinspection), cycle 7

Official EPA records