Posted at: 01/24/2014 6:12 PM
MINNEAPOLIS (AP) - Opponents of the proposed PolyMet copper-nickel mine charge that new data show the state's new draft environmental review for the project underestimates how much contaminated water could flow from the mine, raising serious questions about the long-term costs of treating it.
Tribal hydrologists have been telling regulators for some time that the hydrological model on which the analysis rests underrepresents the true "baseflows" of water at the mine site near Babbitt and need to be fixed. The Timberjay newspaper, which first reported the concerns, says redoing the work could delay completion of the review and push back the start of the permitting process.
But the Department of Natural Resources defends the water modeling in the review and says concerns expressed about it will help it create a better final version.
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