Public Comment Form

Commenting open: July 26, 2022 12:00AM CT - August 25, 2022 04:30PM CT.

Co-operative Plating - Air Permit

We invite you to comment on the draft air quality permit for Co-operative Plating Company in St. Paul.

Co-operative Plating Company is a metal finishing facility that operates 18 separate metal coating lines that process different base metals, including steel, brass, copper, and aluminum. Pollutants of concern from Co-operative Plating are particulate matter (PM), PM less than 10 microns (PM10), PM less than 2.5 microns (PM2.5), hazardous air pollutants, and acid and metal particulates.

The new draft air permit for Co-operative Plating has an annual operating limit for plating operations equipment and degreasing equipment of 8,000 hours to ensure the facility’s emissions are below the Minnesota Department of Health’s health benchmark values. The permit also requires the Co-operative Plating to change its degreaser from trichloroethylene (TCE), which is now banned in Minnesota, to N-Propyl bromide (nPB, also known as 1-Bromopropane). 

An air quality operating permit is required for existing facilities that emit or potentially emit 10 tons per year or more of hazardous air pollution, or 25 tons per year or more of a combination of hazardous air pollution. The permit includes all requirements for operation and procedures, applicable rules, emission standards, monitoring, recordkeeping, and reporting. If additional conditions change and modifications to the permit are necessary, the MPCA may review and amend the permit.


Contact Information

All fields are optional unless otherwise indicated.

Submitted by Value

First Name (Required)

Last Name (Required)

Address (Required)

City (Required)


ZIP (Required)


Your Comment

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 Hannah Braatz
520 Lafayette Road
Saint Paul, MN 55155

*Uploading a file is optional*

You may attach up to five 30 MB files to accompany your submission. Allowed formats are pdf, jpg, jpeg, png, txt, gif, doc, docx. If you experience technical difficulties submitting your comment, please contact the person listed at the bottom of this page.

Thank you for subscribing to the Co-operative Plating - Air Permit mailing list.