State Regulators Open 30-Day PolyMet Comment Period

State Regulators Open 30-Day PolyMet Comment Period Photo: AP

September 15, 2017 02:53 PM

Minnesota regulators have opened a 30-day public comment period on draft dam safety permits for the proposed PolyMet copper-nickel mine in northeastern Minnesota.

The most important permit deals with the tailings basin, which would use the site of the existing basin for the defunct LTV iron ore mine near Hoyt Lakes. The other deals with a processing facility.

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RELATED: Nolan Bill Would Force Completion of PolyMet Mine Land Swap

Environmental groups have already objected, saying the dam design has changed substantially from what was described in the final environmental impact statement for the project. PolyMet says the changes won't have significant environmental effects, and refinements are a normal part of the permitting process.

The Department of Natural Resources will accept written public comments on the draft permits until Oct. 16.

RELATED: Another Lawsuit Seeks to Block PolyMet Mine Land Exchange

The project needs several state, federal and local permits to proceed.

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Associated Press

(Copyright 2017 by The Associated Press. All Rights Reserved.)

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