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PUBLIC NOTICE | Air Quality Permit | Freeport–McMoRan Morenci Mine

Public Notice

Air Quality Permit | Freeport–McMoRan Morenci Mine

Posted on: May 15, 2024 - 7:00 a.m.

On May 15, 2024, the comment period begins for the proposal to issue an Air Quality Control Permit to Freeport-McMoRan – Morenci for the continued operation of a mine located in Greenlee County. The comment period ends June 14, 2024.

Class I Air Quality Permit
Renewal Permit No.: 99245 

Permittee:

Freeport-McMoRan – Morenci 

Facility:

Freeport-McMoRan – Morenci Mine
4521 U.S. Highway 191
Morenci, AZ 85540
Greenlee County

The facility emits the following air contaminants: coarse particulate matter with diameters 10 micrometers or less (PM10), fine particulate matter with diameters 2.5 micrometers or less (PM2.5), volatile organic compounds (VOCs), nitrogen oxides (NOx), sulfur dioxide (SO2), carbon monoxide (CO) and hazardous air pollutants (HAPs).

Review Documents:

Public Comment Period:

Dates: May 15, 2024 – June 14, 2024

Comments may be submitted as follows:

  • By Email | Send Email >
  • By Mail (Must be postmarked or received by June 14, 2024):

ADEQ
Air Quality Division, Air Permits
Attn: Karla Murrieta
1110 W. Washington St.
Phoenix, AZ  85007

EPA Petition Process

This permit is subject to review by EPA pursuant to 40 CFR 70.8 (Code of Federal Regulations) 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 >

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