Summary

EPA is taking final action 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 approving a state rule and associated appendix to regulate these emissions under the Clean Air Act (CAA or the Act).

Action

Final Rule

Dates

This rule is effective on March 26, 2018.

Addresses

EPA has established a docket for this action under Docket ID No. EPA-R09-OAR-2017-0468. All documents in the docket are listed on the http://www.regulations.gov website. Although listed in the index, some information is not publicly available, e.g., Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Certain other material, such as copyrighted material, is not placed on the internet and will be publicly available only in hard copy form. Publicly available docket materials are available through http://www.regulations.gov, or please contact the person identified in the FOR FURTHER INFORMATION CONTACT section for additional availability information.

For Further Information Contact

Ashley Graham (graham.ashleyr@epa.gov), EPA Region IX, (415) 972-3877