[1] University of Kentucky, Center for Applied Energy Research, United States
[2] East Georgia College, United States
[3] Office of Mine Safety and Licensing
[4] Kentucky Division of Water, United States
[5] Morehead State University, United States
[6] University of Georgia, United States
[7] University of California, Irvine, United States
[8] NewFields Environmental Forensics Practice, LLC, United States