3M agrees to pay $12.5 million for new Bemidji water treatment plant to handle chemicals The city of Bemidji and 3M came to an agreement for the company to pay the city $12.5 million to support operations at a new water treatment plant. The facility will remove chemicals, produced by 3M, from the city's water wells. 10:13 am, Mar. 10, 2021 × The water treatment plant is at 3115 Gillett Drive NW, near the Bemidji Regional Airport. (Jillian Gandsey / Bemidji Pioneer) BEMIDJI, Minn. — After nearly five months of negotiating, the city of Bemidji and Minnesota-based 3M have reached a settlement related to chemicals in local water systems.