FILE - In this Aug. 12, 2015, file photo, water flows through a series of retention ponds built to contain and filter out heavy metals and chemicals from the Gold King Mine spill near Silverton, Colo. Environmental groups challenged the Trump administration in federal court Wednesday, May 16, 2018, over its rejection of an Obama-era proposal that would have required mining companies to prove they have enough money to clean up their pollution.
FILE - In this Aug. 12, 2015, file photo, water flows through a series of retention ponds built to contain and filter out heavy metals and chemicals from the Gold King Mine spill near Silverton, Colo. Environmental groups challenged the Trump administration in federal court Wednesday, May 16, 2018, over its rejection of an Obama-era proposal that would have required mining companies to prove they have enough money to clean up their pollution. Brennan Linsley, File AP Photo
FILE - In this Aug. 12, 2015, file photo, water flows through a series of retention ponds built to contain and filter out heavy metals and chemicals from the Gold King Mine spill near Silverton, Colo. Environmental groups challenged the Trump administration in federal court Wednesday, May 16, 2018, over its rejection of an Obama-era proposal that would have required mining companies to prove they have enough money to clean up their pollution. Brennan Linsley, File AP Photo

Trump reversal of mining pollution rule challenged in court

May 16, 2018 01:57 PM