The Air Quality Division regularly tracks several Permit to Install (PTI) applications deemed especially noteworthy due to their potential air emissions and public impact. These applications are now available for review through the MiEnviro Portal and are subject to New Source Review and encourage informal public comments to help inform EGLE’s decision-making process
Following are announcements related to air permits, including updates and other valuable information.
The Michigan Department of Environment, Great Lakes, and Energy (EGLE) approved an air permit for EES Coke Battery, LLC (EES Coke) with changes in response to public comments on June 11, 2025. The company requested a secondary screener and associated equipment at their existing facility. EES Coke is located at 1400 Zug Island Road in River Rouge.
The permit changes include the following additional requirements:
Information on the final permit, including the final conditions, can be found on the Air Quality Public Notice webpage, under PTI Final Decisions, or in MiEnviro Portal.
EGLE sought public input during the comment period. The comment period included a hybrid information session and a public hearing. A recording of the informational session and hearing is available to view. The AQD does not have the regulatory authority to make every change to the permit suggested during the public comment period. Currently, existing laws, rules, and regulations may not allow such changes.
If you have questions about the air permit, contact Grace Knauss at KnaussG@Michigan.gov or 517-643-6174.
Information about other air quality actions open for public comment can be found at Michigan.gov/EGLEAirPublicNotice.
The Michigan Department of Environment, Great Lakes, and Energy (EGLE) approved an air permit for Eagle Mine with changes in response to public comments on May 15, 2025. Eagle Mine submitted an air permit application to install and operate a paste backfill process and to increase the ore trucking limit in their existing permit. The mine is located on AAA Road in Michigamme Township, Michigan
The permit changes include the following additional requirements:
Information on the final permit, including the final conditions, can be found on the Air Quality Public Notice webpage, under PTI Final Decisions or in MiEnviro Portal.
EGLE sought public input during the comment period. The comment period included a virtual information session and a public hearing. A recording of the informational session and hearing is available to view. The AQD does not have the regulatory authority to make every change to the permit suggested during the public comment period. Currently, existing laws, rules, and regulations may not allow such changes.
Additional questions may be directed to Andy Drury at DruryA@Michigan.gov or 517-648-6663.
The Michigan Department of Environment, Great Lakes, and Energy (EGLE) approved an air permit for Copperwood Resources, Inc. (Copperwood), with changes in response to public comments, on February 27, 2025. Copperwood submitted an air permit application to install and operate an underground copper and silver mine and an above ground ore processing facility in Gogebic County, Michigan.
The following requirements were added to the final permit based on comments:
Information on the final permit, including the final conditions and the complete responses to public comments, can be found on the Air Quality Public Notice webpage, under PTI Final Decisions.
EGLE sought public input during the comment period. The comment period included an online information session and public hearing. A recording of the informational session and hearing is available to view. The AQD does not have the regulatory authority to make every change to the permit suggested during the public comment period. Currently, existing laws, rules, and regulations may not allow such changes.
Additional questions may be directed to Andy Drury at DruryA@Michigan.gov or 517-648-6663.
The Michigan Department of Environment, Great Lakes, and Energy (EGLE) Air Quality Division (AQD) approved an air permit for FCA US LLC – Detroit Assembly Complex - Mack, with changes in response to public comments, on November 8, 2024. The permit changes include the following requirements:
The AQD does not have the regulatory authority to make every change to the permit suggested during the public comment period. Currently, existing laws, rules, and regulations may not allow such changes.
Information on the final permit, including the final conditions and the complete responses to public comments, can be found on the Air Quality Public Notice webpage, under PTI Final Decisions.
EGLE sought public input during the comment period. A hybrid informational session and a public hearing were held as part of the public comment period. A recording of the informational session and hearing is available to view.
Additional questions may be directed to Dave Thompson at ThompsonD22@Michigan.gov or 517-582-5095.
More information can be found at Michigan.gov/EGLEStellantis.
On September 10, The Michigan Department of Environment, Great Lakes, and Energy (EGLE) approved air permits for Marathon’s Detroit Permitting Project. The Marathon Petroleum Company LP (Marathon) and MPLX Terminals LLC – Detroit LP Terminal (MPLX) permits were issued with changes in response to public comments. The permit for Air Products and Chemicals, Inc. (Air Products) was issued with no changes. The companies submitted air permit applications to allow Marathon to operate at its physical capacity, to add new criteria pollutant emission caps, and for some pollution control projects at 1001 South Oakwood Boulevard Detroit, Michigan.
The Marathon permit changes include:
MPLX’s permit was changed to show the vapor recovery unit stack height has been increased to 35 feet.
Information on the final permits, including the final conditions and the complete responses to public comments, can be found on the Air Quality Public Notice webpage, under PTI Final Decisions (English only).
The comment period was held from April 17 to June 3, 2024, and included a hybrid (in-person and online) information session and public hearing. A recording of the informational session and hearing is available to view. We do not have the regulatory authority to make every change to the permit suggested during the public comment period. Currently, existing laws, rules, and regulations may not allow such changes.
Additional questions may be directed to Andy Drury at DruryA@Michigan.gov or 517-648-6663.
Air Quality information related to the Marathon Detroit Refinery can be found at Michigan.gov/EGLEMarathon.The Michigan Department of Environment, Great Lakes, and Energy (EGLE) approved an air permit for Carmeuse Lime and Stone (Carmeuse), with changes in response to public comments, on July 25, 2024. Carmeuse submitted an air permit application to add the ability to burn coke oven gas (COG) at 25 Marion Avenue, River Rouge, Michigan.
Information on the final permit, including the final conditions and the complete responses to public comments, can be found on the Air Quality Public Notice webpage, under PTI Final Decisions.
The changes in the final permit include the following requirements:
EGLE sought public input during the comment period. The comment period included a hybrid (in-person and online) information session and public hearing. A recording of the informational session and hearing is available to view. The AQD does not have the regulatory authority to make every change to the permit suggested during the public comment period. Currently, existing laws, rules, and regulations may not allow such changes.
Additional questions may be directed to Andy Drury at DruryA@Michigan.gov or 517-648-6663.
The Michigan Department of Environment, Great Lakes, and Energy (EGLE) approved an air permit for Edw. C, Levy Co. (Levy), with changes in response to public comments, on November 30, 2023. Levy submitted air permit Application No. APP-2023-0070 for a new blast furnace slag grinding facility located at 8941 West Jefferson in Detroit, Michigan.
The permit changes include the following requirements:
In deciding whether to approve the air permits, EGLE sought public input during the comment period. The comment period included an online information session and public hearing with simultaneous interpretation into American Sign Language, Arabic, and Spanish. A recording of the informational session and hearing is available to view.
Information on the final permit, including the final conditions and the complete responses to public comments, can be found on the Air Quality Public Notice webpage, under PTI Final Decisions (English only). Please note that some may be experiencing difficulties accessing the website. We are actively working to resolve the issue.
The AQD does not have the regulatory authority to make every change to the permit suggested during the public comment period. In many cases, existing laws, rules, and regulations do not allow for such changes.
Additional questions may be directed to Jacob Young at YoungJ30@Michigan.gov or 517-582-5218.
The Michigan Department of Environment, Great Lakes, and Energy (EGLE) has approved an air permit for a proposed Ajax Materials Corp. asphalt plant in Genesee Township with a host of site-specific conditions and restrictions. These additional restrictions provide safeguards to ensure compliance with the law and to better protect the community.
Simultaneously, the agency sought guidance and support from the United States Environmental Protection Agency (USEPA) in providing tools and strategies to improve public health in at-risk communities.
Ajax plans to locate in a neighborhood of color in social and economic distress. And while the permit was appropriately issued after the applicant met all requirements of air regulations, a letter sent from EGLE Director Liesl Clark to the USEPA today notes that the process “…highlights the limitations of Federal and State environmental regulations in addressing the concerns raised by Flint residents.”
The permit received more than 340 comments from residents, environmental advocates and government agencies during the extended 83-day comment period, overwhelmingly opposed to the facility. Most objections were outside the scope of EGLE’s authority to consider under applicable laws.
“It is vital that air permitting rules ensure consistent, clear rules so that they are not subject to arbitrary decisions,” said Clark. “But it is abundantly clear in this situation, and many others across the nation, that the tools we are given to protect particularly distressed communities should be strengthened.”
Clark said the agency took every measure it could within existing laws to protect residents in the plant’s vicinity. As the permit was developed, EGLE consulted with the Michigan Department of Attorney General (MDAG) and other legal experts, other states that have faced similar situations and USEPA staff.
“While applying Federal and State laws according to our department’s longstanding practice and consistently validated precedent—EGLE broke new ground on this permit in applying location-based environmental justice considerations to the process. In addition to our standard high level of attentiveness to public comment, including those offered by EPA Region 5, we were more proactive in our engagement with the community and use of our legal authority in this matter than we have been for any minor source permit in institutional memory.”
Among the permit conditions:
The approval starts a 90-day period during which anyone may appeal the decision to circuit court.
