A mountain of coal next to Duke Energy's Marshall Steam Station on Lake Norman .
A mountain of coal next to Duke Energy's Marshall Steam Station on Lake Norman . Davie Hinshaw dhinshaw@charlotteobserver.com
A mountain of coal next to Duke Energy's Marshall Steam Station on Lake Norman . Davie Hinshaw dhinshaw@charlotteobserver.com

Duke Energy to cap two-thirds of N.C. coal ash. Critics say dig it up.

November 11, 2016 4:28 PM