September 30, 2021
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.
January 27, 2021
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.
September 15, 2020
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.
July 15, 2020
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.
May 13, 2020
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.