PolyMet announces environmental improvements

PolyMet Mining announced Thursday that it has accomplished “numerous improvements” in solving potential environmental problems at its proposed copper mine and processing plant near Hoyt Lakes.

The Vancouver-based company said the advancements will reduce environmental impacts of the project, help ready its long-delayed draft Environmental Impact Statement for release this coming summer and should help move the project along through permitting and toward construction.

Company officials say the latest advancements include reductions in sulfur dioxide, mercury and greenhouse gas emissions, groundwater seepage containment and all water discharged from the project will be treated using reverse osmosis.