Alan L. Mayo is Professor Emeritus of Hydrogeology, Brigham Young University, Provo, UT. He is also a Managing Partner at Mayo and Associates, LLC, Lindon, UT where he consults in Hydrogeology. From 2011 to 2019 he was Vice President and Chief Technical Officer at HydroGeo Group, LLC, where he consulted to mining, energy, and water resources industries. He received his Ph.D. in Hydrogeology, in 1982, from the University of Idaho. He has published many articles and has received several awards from international associations.