GHOLAM A. KAZEMI is Assistant Professor at the Faculty of Earth Sciences, Shahrood University of Technology, Northeastern Iran. He teaches advanced hydrogeology, hydrogeochemistry, and environmental tracers. He has industry experience as a geologist and has authored several relevant publications.

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 Neuchâtel, Switzerland, where he teaches groundwater dynamics, transport processes, and mathematical modeling.