Public Comment Form

Commenting open: August 12, 2024 07:00AM CT - September 11, 2024 11:59PM CT.

MagIron - Air Permit

We invite you to comment on the draft air quality permit for MagIron in Grand Rapids.


MagIron is a scram mining company and plans to restart the previously named Magnetation Plant 4 (also previously known as ERP Iron Ore LLC Plant 4) located near Grand Rapids. Scram mining is an operation that produces iron concentrates from previously deposited waste rock and tailings. The facility will make use of material handling equipment, such as front-end loaders, crushers, screens, and conveyors.


The draft air permit is a new operating permit for the facility. It authorizes installation of new crushing equipment, limits particulate matter emissions, and requires testing and monitoring for particulate matter emissions. 


An air quality operating permit is required for certain existing facilities or the construction of new facilities that have the potential to emit a significant level of any regulated pollutant. The permit includes all requirements for operation and procedures, applicable rules, emission standards, monitoring, recordkeeping, and reporting. If additional conditions change and modifications are necessary, the MPCA may review and amend the permit.



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Thank you for providing feedback on this project. We value your comments and will use them to assess this project further.


In your comments, please state your interest in the permit application or the draft permit; the explicit actions you wish the MPCA to take, including specific references to the section of the draft permit you believe should be changed; and the reasons supporting your position, stated with sufficient specificity as to allow the MPCA to investigate the merits of the position.


If you want to submit a letter, you can upload the letter on this website or submit it via US Mail to the following address:


Minnesota Pollution Control Agency
c/o Benjamin Wenkel
520 Lafayette Road
Saint Paul, MN 55155

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