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Comment Period Opens on PolyMet Mine Dam Safety Permits

The public now has 30 days to comment on proposed dam safety permits for PolyMet. The public now has 30 days to comment on proposed dam safety permits for PolyMet. |  Photo: WDIO-TV file

September 15, 2017 03:27 PM

ST. PAUL, Minn. (AP) - 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.

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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.

The Minnesota Center for Environmental Advocacy calls the dam one of the riskiest parts of PolyMet's proposal and says a catastrophic failure would cause long-lasting damage downstream.

PolyMet says the tailings basin is one of the most-studied parts of the project, and that it has taken extra steps to ensure a safe and stable design.

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

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


WDIO

Copyright 2017 The Associated Press. All rights reserved.

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