PolyMet has submitted the first three permit applications for its proposed copper-nickel mine near Hoyt Lakes, reports the Duluth News Tribune. It comes after the D-N-R in March decided the environmental review of the controversial project was adequate. Environmentalists say the analysis was flawed and the project could send acid-tainted water toward the B-W-C-A Wilderness. Supporters of the project respond modern technology will prevent that. Governor Mark Dayton has said before the project moves forward he wants iron-clad assurances that if there’s any problem, taxpayers won’t be on the hook for cleanup costs.