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Refinery Alerts

Normal operations resuming at Detroit refinery

February 15, 2019

Marathon Petroleum has begun startup activities at its Detroit refinery after conducting extensive safety testing. A normal part of startup activities includes flares that may be larger than they would be during day-to-day operations. This flaring is a safety measure that ensures materials fully combust. As the plant resumes full operations over the next week, flaring will return to normal levels.

De-activation of malfunctioning flare complete

February 8, 2019

Marathon Petroleum has completed the de-activation of the malfunctioning flare. There were no additional unexpected emissions during the process.

De-activation of flare to be complete today

February 8, 2019

Marathon Petroleum continues to conduct air monitoring in nearby communities, and continues to share results with the Michigan Department of Environmental Quality, U.S. Environmental Protection Agency, and the City of Detroit’s Buildings, Safety, Engineering and Environmental Department. We plan to begin repairs to the malfunctioning flare this afternoon. As a precautionary measure, we will continue air monitoring for several hours after we de-activate the flare, in case there is any residual gas in the flare during the final de-activation process. We have notified local emergency response agencies of our plans.

Marathon Petroleum’s statement to the Detroit City Council on Feb. 5, 2019

February 5, 2019

Below are comments from Marathon Petroleum at the Feb. 5, 2019, Detroit City Council meeting regarding the malfunctioning flare at the company’s refinery:

On Sunday , we implemented processes that significantly reduced the amount of material flowing to the flare. By Sunday evening, we had reduced it to zero, which addressed the odor concerns that affected the area. We believe the odor was largely from mercaptan, a substance added to natural gas to give it a detectable odor. We deployed air-monitoring resources on a constant basis, and at no time did they detect dangerous levels of any substances. The U.S. EPA and the Michigan Department of Environmental Quality confirmed that there were no readings of concern. We also worked closely with the City of Detroit on this matter. This included the city’s Homeland Security office and the Buildings, Safety, Engineering and Environmental Department.

When we began our response to this incident, we notified the MDEQ, the Detroit Fire Department, the Dearborn Fire Department, Michigan State Police, Homeland Security and others. We worked to ensure a briefing was sent to the members of this honorable council, as well as his honor the mayor’s office. We also notified members of the community by updating our refinery website and sending text messages, phone calls and emails to those who have subscribed to receive those alerts. Throughout our response, we have kept emergency responders, regulatory agencies, and our neighbors informed of our efforts. We have made our air-monitoring data available to the regulatory and emergency response agencies.

As of yesterday evening, we finished removing the contents of various vessels that are connected to the flare. This means we can now de-activate the flare and begin making repairs.

Once we start making repairs, one of our top priorities will be to determine how this incident happened. We believe it was linked to the extreme cold that affected the area last week, but we will rely on our investigation to confirm that. Once we know the cause, we will take corrective actions so that this does not happen again.

After we make the repairs, test the flare, and confirm it is safe, we will begin the process of re-establishing normal operations at the refinery. Our highest priority is the safety of the community where we operate and those who work at our refinery. We apologize to the community for the odor and the inconvenience.

Michigan Department of Environmental Quality press statement regarding Detroit release

February 4, 2019

The Michigan Department of Environmental Quality issued a press statement regarding their response to the release at Marathon Petroleum’s Detroit refinery. Please see the statement here: https://content.govdelivery.com/accounts/MIDEQ/bulletins/22cc75b?fbclid=IwAR3lMODzRf9XZanRyZHV69QA0W2bWsuo9GRnUx6TvnyzHFXyJLEwYnIyv-I

 

Refinery implemented processes to stop release

February 3, 2019

Marathon Petroleum has implemented processes at its Detroit refinery to stop a release from a flare that is not functioning properly. These processes have significantly reduced the amount of material flowing to the flare since this morning. In order to conduct repairs to the flare, we are also removing the contents of various vessels connected to the flare. We are conducting this work as safely and as quickly as possible, and we anticipate completion by the end of the day tomorrow, Feb. 4. Although there has been an odor from the release, our ongoing air monitoring has not detected dangerous levels of any substances. We believe the odor is largely from mercaptan, a substance added to natural gas to give it a detectable smell. We will continue to conduct air monitoring on a constant basis in nearby communities as a precaution, and are making our air-monitoring data available to regulatory and emergency response agencies. We apologize for the inconvenience to the community, and we are conducting a thorough investigation to determine what caused this release. Once determined, will implement the necessary corrective actions so that this does not happen again.

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