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AQD | Copper World, Inc. | Permit of Interest

Air Quality Permits of Interest

Copper World, Inc.

Revised On: July 17, 2024 - 10:04 p.m.

This permit of interest online resource provides interested parties easy access to information about the Copper World Project, owned by Copper World, Inc.

Facility Information

The Copper World Project is located approximately 28 miles southeast of Tucson, Arizona in Pima County and about 12 miles southeast of Sahuarita, Arizona. The Copper World Project will be developed as an open-pit mining operation. Both sulfide and oxide ore will be mined and beneficiated. The project will include a milling and flotation circuit for the processing of sulfide ore along with conventional tailings disposal. A heap leach facility (HLF) is planned that includes a lined heap leach pad (HLP) and associated lined ponds for the leaching of copper from oxide ore. The project also includes a solvent extraction and electrowinning (SX-EW) plant for processing of copper-rich solutions from the heap leach circuit and from a separate copper concentrate leach circuit. Sulfuric acid will be produced by an onsite sulfuric acid plant.

Location

9025 E. Santa Rita Road
Sahuarita, Arizona 85629

Permitting

The facility has the potential to emit 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), sulfuric acid mist (H2SO4) and hazardous air pollutants (HAPs).

Documents

On Oct. 21, 2022, ADEQ received the Class II Air Quality Permit application for the Copper World Project from Copper World, Inc.:

Permit Application | View/Download > 
Project Modeling Report | View/Download > 

Request Letter | View/Download >
Response Letter | View/Download >
Revised Modeling Report | View/Download >
Revised Project Description | View/Download >
Blasting NOx Emission Factor | View/Download >
Dust Control Plan | View/Download >
Tailings Dust Management Plan | View/Download >

Request Letter | View/Download >
Response Letter | View/Download >
Revised Modeling Report | View/Download >
Revised Project Description | View/Download >
Updated Dust Control Plan | View/Download >

Submission Cover Letter (January 2024) | View/Download >
Revised Modeling Report (January 2024) | View/Download >
Submission Cover Letter (March 2024) | View/Download >
Revised Modeling Report (March 2024) | View/Download >

Permit Application (Revised Section) | View/Download >
Final Modeling Report | View/Download >
Quality Assurance Plan | View/Download >
Appendix F — Emissions Inventory

Submission Cover Letter | View/Download >
Revised Dust Control Plan | View/Download >
Revised Tailings Dust Management Plan | View/Download >

Public Participation

The public comment period for the proposal to issue an air quality control permit to Copper World, Inc. for the construction and operation of the Copper World Project is July 15, 2024 – Sept. 15, 2024 | View Public Notice >

On Aug. 14, 2024, ADEQ held an informal community meeting to discuss the draft air quality permit | View Fact Sheet > | View Presentation >

On Sept. 10, 2024, ADEQ held an in-person public hearing to accept formal public comments on the draft permit.


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