Aquifers 1 Artificial tracers Environmental regulations 1 Groundwater flow 1 Groundwater resources 1 Hydraulics 1 Hydrogeological mapping 1 Hydrogeology 1 Karst water 1 Karst water source 1 Landforms 1 Mapping 1 Methodological approach 1 Natural and artificial tracers 1 Natural tracers 1 Potable water 1 Protection zoning 1 Vulnerability assessment 1 Vulnerability assessments 1 Water balance 1 Water source 1 Zoning 1 aquifer 1 drinking water 1 groundwater flow 1 hydrogeology 1 karst 1 methodology 1 spatial planning 1 water flow 1