(Saint Paul, MN) -- Environmental groups are challenging the state permits issued for the proposed PolyMet copper-nickel mine in northeastern Minnesota.

They delivered a legal filing to the DNR and Minnesota Pollution Control Agency Thursday calling for the permits to be suspended until the state Court of Appeals considers their case. The DNR issued a number of necessary permits for the project last week including the permit to mine. The clean water groups claim state officials failed to analyze PolyMet's mega-mine plan which they say wasn't released until after the public comment periods were closed. They also want another environmental impact statement on the risks to water quality and public health.

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