Letter to the community: RTO installation complete

June 26, 2023

Community Residents:

As you know, we have been working diligently to install a second regenerative thermal oxidizer (RTO) and ducting at the Detroit Assembly Complex – Mack plant to address odor concerns raised by the community.

Today, we are pleased to report that installation is complete, and the system is now fully operational to remove odors from sources identified through our investigation.

The exhaust from two existing stacks will be routed to this new system to destroy odor contributing compounds. Additionally, actual volatile organic compound (VOC) emissions will be reduced through this process.

We know this has been a lengthy process and we want to thank you for your patience as we worked to identify and resolve this issue.

As always, you can reach out to us on the Mack Assembly Community Hotline at (833) 310-2313 if you have any questions or concerns.

Additionally, as a result of our supplemental environmental project, the Detroit Public Schools Community District will begin installing a new building management system at Southeastern High School in the coming weeks that will improve the functionality and efficiency of the building’s heating, ventilation and air conditioning system. We expect that work to be complete by the start of the new
school year.

From the beginning, we committed to making this right and will continue to comply to the fullest extent with the terms of our air permit.

Linda Trbizan
Senior Vice President and Head of North America Assembly Operations

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