EPA Proposes Approval of Arizona Air Plan Revisions to Regulate Lead Emissions from Copper Smelter

Summary

The Environmental Protection Agency (EPA) is proposing to approve a revision to the Arizona Department of Environmental Quality (ADEQ) portion of the Arizona State Implementation Plan (SIP) to regulate emissions of lead-bearing fugitive dust from a primary copper smelter in Hayden, Arizona, in accordance with the Clean Air Act (CAA or the Act).