On September 10, 2025, Many Waters LLC notified the Michigan Department of Environment, Great Lakes, and Energy (EGLE), Water Resources Division (WRD), Aquatic Nuisance Control (ANC) that they suspected non-native watermilfoil in Bass Lake, Gogebic County had been treated using a pesticide. ANC staff confirmed no ANC permit had been issued for Bass Lake, Gogebic County.
ANC staff immediately began an investigation to gather information from residents, local officials, and Lac Vieux Desert Tribe. Sampling of water, sediment, and plant tissue took place on October 16, 2025. Samples of water, sediment, and plant tissue were delivered to the Michigan Department of Agriculture and Rural Development (MDARD) Pesticide Laboratory and Eurofins Scientific Laboratory on October 17, 2025.
Click here to review the staff report from EGLE>