JAY H. LEHR is the Senior Scientist on the Technical Advisory Board at Earthwater Global, LLC and a Senior Scientist at the Heartland Institute. He is the author of fourteen books and over 500 articles on environmental science.

PIERRE PERROCHET has twenty years of experience in the field of groundwater flow and transport modeling within various world-renowned research institutions. His scientific interests focus on theoretical and computational developments related to hydro-thermo-chemical phenomena, with numerous applications to environmental and hydrogeological engineering issues. He is presently Professor at the Centre of Hydrogeology, University of Neuchatel, Switzerland, where he teaches groundwater dynamics, transport processes, and mathematical modeling.

Jack Keeley is the former Chief of Groundwater Research at the USEPA Kerr Water Resource Research Laboratory in Ada, Oklahoma.