Marco Petitta is Associate Professor of Hydrogeology at La Sapienza University of Rome, Italy, and is author of about 50 papers on international journals. After obtaining a PhD in groundwater modeling, his researches are focusing on groundwater management, interaction between stream and groundwater, human influences on groundwater quantity and quality, remediation of polluted sites, isotope techniques for groundwater studies, role of groundwater in environmental and ecological studies. He is Chairman of the Italian Chapter of the IAH (International Association of Hydrogeologists), Coordinator of the Panel of Experts in Hydrogeology of the EFG (European Federation of Geologists) and Member of the Working Group of Groundwater of the European Union, for the Common Implementation Strategy of Water Directives.  He is coordinator of the H2020 project KINDRA on groundwater knowledge gaps, financed by the European Commission. He is active in international collaborations with California, USA (University of Davis), Canada (University of Waterloo and University of Guelph), China (Peking University) and with several European Universities.