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Questions and Answers

What is made at Crimson Holdings?

We produce powdered eggs for pet food products.

How long has Crimson Holdings owned and operated this facility?

Crimson Holdings purchased the facility from Dairy Farmers of America in December 2021 with no judgement of existing permit issues. Prior to the purchase, the facility’s previous owners manufactured powered milk.

When did the odor issue come about?

When the state of Michigan visited the facility in March 2022 to conduct an air permit inspection, we were notified the stack, which was installed by the previous owners, no longer met the state’s requirements. Crimson Holdings took immediate action to correct the findings.

What has been done to address the odor?

Since Crimson Holdings received its first violation letter associated with odors from the plant, the company has undertaken several projects to reduce odors and assure neighbors that the facility is environmentally safe. These activities include: 

  • Replaced the stack to allow it to exhaust unobstructed vertically upward and raising it 16 feet from its previous height. 
  • Installation of an odor neutralizer system to treat odors from powdered egg manufacturing. 
  • Performed stack testing to ensure toxic air contaminants meet the associated acceptable ambient concentrations associated with Michigan’s air toxics rules. 
  • Documented required maintenance activities at the plant and created checklists to ensure proper record keeping. 
  • Developed a Nuisance Odor Minimization Plan (NOMP) to outline required air pollution control equipment operation and activities needed to address odors when they are reported. 
  • Developed a form that can be completed online for residents to provide feedback on plant odor control activities. 
  • Improved onsite wastewater treatment plant (WWTP) performance to reduce odors from the operation of the WWTP and the sludge produced at the plant. 
  • Changed the sludge storage tank stack and developed a routine to periodically replace carbon filters associated with the tank. 
  • Placed carbon filters on exhaust coming from the onsite WWTP. 

What are the continued plans to address odor at the facility, including the taller stack?

Several experts, including environmental consultants and the Michigan Department of Environment, Great Lakes, and Energy, evaluated the potential effectiveness of the taller stack and determined it should decrease the pungency of the odor by 95%. 

We are in the process of construction and installation for the stack and plan for it to be fully operational later this month. From there, we will continue to run tests and receive feedback from the city, its residents and state, to evaluate the effectiveness of the stack. While we are not putting all our “eggs” in one basket, we plan to thoroughly monitor any improvements to determine its efficacy after installation. 

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