Colorado Smelter

Regulatory timeline

1. May 12, 2014Proposed for the NPL
2. December 11, 2014Established 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. December 11, 2024Projected five-year review (reinspection), cycle 2
2. December 11, 2029Projected five-year review (reinspection), cycle 3
3. December 11, 2034Projected five-year review (reinspection), cycle 4

Official EPA records