WildEarth Guardians et al v. Mountain Coal Company et al

  1. September 30, 2021

    Enviro Groups Allowed To Continue Colo. Mine Pollution Suit

    Environmental groups have standing to continue a suit accusing coal mine owners Arch Resources of violating environmental laws but haven't met the heavy burden necessary to win the case outright, a Colorado federal judge said Thursday.

  2. January 27, 2021

    Colo. Judge Says Mine Suit Decades Too Late

    A Colorado magistrate judge has recommended dismissal of a suit accusing an Arch Resources-owned coal mine of violating environmental law, finding that an expansion project can't restart the clock on claims stemming from the initial construction of the mine decades ago.

  3. September 15, 2020

    Colo. Public Health Dept. Says Arch Mine Suit Not Time Barred

    The Colorado Department of Public Health and Environment urged a federal court to preserve its ability to hold an Arch Resources Inc.-affiliated mine accountable for potential air pollution permit violations even if the court determines green groups waited too long to challenge the mine's air permits under federal law.

  4. July 15, 2020

    Arch Says Green Groups' Colo. Mine Suit Decades Too Late

    Arch Resources Inc. told a Colorado federal court that environmental groups waited decades too long to accuse a western Colorado coal mine it owns of violating environmental law and that new construction at the site doesn't make the claims timely.

  5. May 13, 2020

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

    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.