Callahan Mining Corp OU3 Draft ESD Public Comment

EPA Region 1 has released a draft Explanation of Significant Differences (ESD) for Operable Unit 3 of the Callahan Mining Corp Superfund Site for public review and comment. The ESD addresses proposed modifications to the remedy selected for the mine tailings contamination area. This draft document explains significant differences between the current remedial action plan and the proposed changes.

Affected parties including local communities, environmental organizations, and potentially responsible parties should review the draft ESD and submit comments during the public comment period. The EPA will consider public input before issuing the final ESD, which will establish updated remediation requirements for the site.