Dr Kostas Voudouris is an Assistant Professor at the Department of Geology; Laboratory of Engineering Geology & Hydrogeology, Aristotle University of Thessaloniki, Greece. He received his Bachelor of Science Degree in Geology and Mathematics from the University of Patras and a PhD degree in Hydrogeology from the Department of Geology, University of Patras. His primary research interests are in Groundwater Quality, Field Hydrogeology, Aquifer Vulnerability to Pollution, Groundwater Management and Environmental Hydrogeology. He is a professional member of International Association of Hydrogeologists, Hellenic Committee of Hydrogeology, International Association of Mathematical Geosciences and European Water Resources Association. He has a number of papers published in the proceedings of international conferences and international scientific journals. He published a book on “Environmental Hydrogeology” in 2009 and has participated in a lot of European and National projects during the last years.