Summary
EPA is proposing to approve a revision to the Arizona Department of Environmental Quality (ADEQ) portion of the Arizona State Implementation Plan (SIP). This revision concerns emissions of lead-bearing fugitive dust from roads, storage piles and other activities associated with the primary copper smelter located in Hayden, Arizona. We are proposing to approve a state rule and associated appendix to regulate these emissions under the Clean Air Act (CAA or the Act). We are taking comments on this proposal and plan to follow with a final action.
Action
Proposed rule.
Dates
Any comments must arrive by December 27, 2017.
For Further Information Contact
Christine Vineyard (vineyard.christine@epa.gov)
EPA Region IX
(415) 947-4125