FILE PHOTO May 2014: This shows the primary coal ash basin at Duke Energy’s now-retired Riverbend power plant on Mountain Island Lake.
FILE PHOTO May 2014: This shows the primary coal ash basin at Duke Energy’s now-retired Riverbend power plant on Mountain Island Lake. Robert Lahser rlahser@charlotteobserver.com
FILE PHOTO May 2014: This shows the primary coal ash basin at Duke Energy’s now-retired Riverbend power plant on Mountain Island Lake. Robert Lahser rlahser@charlotteobserver.com