Robyn HANNIGAN, Professor, PhD, is the Dean of the School for the Environment at the University of Massachusetts Boston, USA. She is actively engaged at the national and international level in both environmental service and research. As a geochemist, Robyn's research focuses on studying groundwater, groundwater – surface water interrelation in geological and climatically dynamic environments, and surface climate change-ocean interactions through the chemistry of water. Water resources protection, including ground water, is constantly in her scientific focus. She has valuable professional publications and contributions in groundwater geochemistry. Dr. Hannigan R. is internationally recognized water quality specialist. Constantin MORARU, Dr. habilitatus, PhD, is the Head of the Laboratory of Hydrogeology at the Institute of Geology and Seismology of the Republic of Moldova. He is a Hydrogeologist with a wide range of international scientific experience. His research focuses on Low Temperature Hydrogeochemistry, Ground and Surface water contamination and water resources protection. As a researcher he contributed with many significant publications in hydrogeology areas, including 6 books. Dr. Moraru conduct hydrogeochemistry research and mentor undergraduate and graduate students.