Public Comment Form

Commenting open: September 19, 2022 12:00AM CT - October 19, 2022 11:59PM CT.

Marathon Saint Paul Park Refinery - Air Permit

We invite you to comment on the draft air quality permit for Marathon Saint Paul Park Refinery.

Marathon's Saint Paul Park refinery is located in the cities of Saint Paul Park and Newport, Washington County, Minnesota. It has a crude oil refining capacity of 105,000 barrels per calendar day The refinery processes foreign and domestic crude oil into various products, including propane, gasoline, diesel fuel, jet fuel, asphalt, and industrial-grade sulfur.

This draft permit includes major, minor, and two administrative amendments. The major amendment incorporates permit conditions from a 2018 US EPA Administrative Consent Order. The minor amendment adds temporary portable vapor combustion units for refinery degassing. The use of this temporary portable vapor combustion control equipment will control volatile organic compounds that get released into the atmosphere during infrequent and intermittent maintenance activities on storage tanks, vessels, and piping. 

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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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 Tarik Hanafy
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.


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