ST. PAUL, Minn. (AP) — The Minnesota Court of Appeals is deciding whether to grant requests by opponents of the proposed PolyMet copper-nickel mine to cancel two of its most important permits and order further proceedings.

Ann Cohen, representing several environmental groups, told a three-judge panel Wednesday that PolyMet’s permit to mine and its dam safety permit lack enforceable terms and conditions needed to protect the public and environment.

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And Paula Maccabee, of the environmental group WaterLegacy, argued that the Department of Natural Resources was legally obligated to hold a contested case hearing with a neutral administrative law judge before deciding whether to approve the permits.

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But attorneys for the DNR and PolyMet argued that the project has met the legal requirements.

The Court of Appeals usually rules within 90 days of hearing oral arguments.

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