Green Groups Say Arch's Colo. Mine Expansion Is Illegal

By Morgan Conley (May 13, 2020, 2:33 PM EDT) -- A western Colorado mine owned by Arch Coal Inc. is breaking environmental law by charging ahead with an expansion without the proper permits, four environmental groups are claiming in a federal court.

Wildearth Guardians, Sierra Club, Center For Biological Diversity and High Country Conservation Advocates on Tuesday urged a Colorado federal court to declare that Arch violated the Clean Air Act by continuing work on a mine despite not securing required construction or operating permits. The suit also names Arch's Mountain Coal Co. unit, which operates the West Elk coal mine.

After running the mine for roughly 20 years, Arch put into...

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