The city of Kalamazoo claims approximately 1,500 to 2,000 gallons of liquid industrial waste were believed to have been dumped by Graphic Packaging International into the Kalamazoo River. It is believed this dumping was an accidental liquid release to a nearby storm sewer. The company is claiming the incident happened due to a "minor incident involving a sump." The city of Kalamazoo Department of Public Services and the Kalamazoo County Health and Community Services Department are advising people to avoid potentially impacted areas.

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