GRAND JUNCTION, Colo. (AP) — Conservation groups have filed a federal lawsuit against Arch Coal over methane and other toxic air emissions at the company’s West Elk Mine in Colorado’s North Fork Valley.
The plaintiffs include WildEarth Guardians, the Sierra Club, the Center for Biological Diversity and High County Conservation Advocates. They contend the mine is violating the federal Clean Air Act by not sufficiently restricting emissions of methane, a greenhouse gas, and smog-forming volatile organic compounds. The West Elk Mine is Colorado’s largest coal mine, producing more than 4 million tons of coal in 2019. Arch Coal didn’t immediately respond for comment on the suit, which was filed in U.S. District Court in Denver.