PUBLIC NOTICE | Proposed Air Quality Significant Permit Revision for Freeport-McMoRan Morenci Inc. in Greenlee County

ADEQ proposes to issue Air Quality Control Significant Permit Revision No. 89504 to Freeport-McMoRan Morenci Inc., for the continued operation of the copper ore mining and processing operations facility located in Greenlee County. The facility is subject to the requirements of the Federal Clean Air Act, Code of Federal Regulations, Arizona Revised Statute 49-426, and the Arizona Administrative Code, Title 18, Chapter 2. The facility emits the following air contaminants: particulate matter with an aerodynamic diameter equal to or less than 10 microns (PM10), particulate matter with an aerodynamic diameter equal to or less than 2.5 microns (PM2.5), nitrogen oxides (NOX), carbon monoxide (CO), sulfur dioxide (SO2), volatile organic compounds (VOCs) and hazardous air pollutants (HAPs).

Permittee

Freeport-McMoRan Morenci Inc.

Facility Location

4521 U.S. Highway 191
Morenci, AZ 85540
Greenlee County

Permit Type

Class I Air Quality Control Permit

Review Documents

Original Published Public Notice | View >
Draft Permit | View >
Draft Technical Support Document | View > 
Permit Application | View >

You may also review the above documentation in person at the ADEQ Record Center | Learn How >

Public Comment Period 

Dates: Aug. 2, 2021 – Sept. 1, 2021

Comments may be submitted as follows:
     Email | Send Email >  
     Mail (Must be postmarked or received by Sept. 1, 2021):

       ADEQ
       Balaji Vaidyanathan
       Facilities Emissions Control Section
       1110 W. Washington St.
       Phoenix, AZ  85007

People who file comments on the permit will have the right to appeal the final decision as an appealable agency action to the Office of Administrative Hearing (OAH) pursuant to §41.1092.03, and the appeal must be filed within 30 days after the issuance of the final decision. The OAH may sustain, modify or reverse the final decision.

EPA Petition Process

This permit is subject to review by the Environmental Protection Agency (EPA) pursuant to 40 CFR 70.8 and Arizona Administrative Code R18-2-307. If EPA does not object to the issuance of this permit, you may petition to EPA within 60 days after the expiration of EPA's 45-day review period. A petition shall be based only on objections to the permit that were raised with reasonable specificity during the public comment period, unless the petitioner demonstrates that it was impracticable to raise such objections within such period, or unless the grounds for such objection arose after such period. Any person who petitions to EPA pursuant to 40 CFR 70.8(d) shall notify ADEQ by certified mail within 10 days after such petition.

Comments may be submitted to EPA according to the process for Title V Petitions | Learn More >