ANN ARBOR – The city of Ann Arbor announced that late Thursday morning, its public works staff was notified of a sewage overflow in the University of Michigan Nichols Arboretum near Nichols Drive.
When a crew arrived to the scene, they discovered that the discharge was caused by a root ball and that an estimated 500 gallons flowed to the ground surface.
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No sewage reached any storm sewer or watercourse, city officials said.
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They covered the affected area with lime to neutralize any bacteria and cordoned off the area with tape. Signs were also placed to restrict people from entering the area and explain why access to the area is prohibited.
City staff notified the Michigan Department of Environment, Great Lakes and Energy, following regulatory protocols.