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Public Notice: Arizona State Implementation Plan; Proposed Approval of Revisions; Emissions from Hayden and Miami Copper Smelters

Publish Date: 03/30/2018


EPA is proposing to approve revisions to the Arizona State Implementation Plan (SIP). These revisions concern emissions of lead and sulfur dioxide (SO2) from the copper smelter at Hayden, AZ and SO2 from the copper smelter at Miami, AZ. We are proposing to approve State rules to regulate these emission sources under the Clean Air Act (CAA or the Act). We are taking comments on this proposal and plan to follow with a final action.


Proposed Rule


Any comments must arrive by April 30, 2018.

For Further Information Contact

Kevin Gong (, EPA Region IX, (415) 972 3073.

Applicant or Respondent

State of Arizona

Docket Number: 

Federal Register Citation: