Groundwater is the world’s most important source of freshwater, constituting 97% of the earth’s freshwater reserves. In many parts of the Mediterranean region, this resource is increasingly being polluted by human activities, causing the use of some aquifers to become endangered and undermining the role of groundwater in the hydrological cycle. While significant attention has been paid to national efforts to protect groundwater resources the role of local authorities has received considerably less attention. Given the large role they play in overseeing industrial and other polluting activities in their jurisdictions, local governments can in fact become significant actors in efforts to protect shared groundwater resources. This project aims to empowering a selection of Mediterranean municipalities with the technical and administrative skills to alleviate sources of groundwater pollution in their jurisdiction as well as enhancing cooperation across Mediterranean Basin municipalities to protect common natural heritage.