Introduction Hydrogeology of Israel.- The mountain carbonate aquifers of Israel.- The coastal aquifers of Israel, including seawater intrusion and SGD.- The vast regional desert Nubian Sandstone aquifer.- The hydrogeological system of the Dead Sea Rift base level.- Recharge processes in the desert and Mediterranean environments.- Groundwater contamination and environmental aspects.- Dating of different groundwater bodies.- Monitoring of groundwater level and salinity changes, related to tides, exploitation and earthquakes.- Paleohydrology of Israel.- Engineering and infrastructural aspects related to groundwater processes (watering, subsidence, sinkholes).- Hydrogeophysics (borehole logging, TDEM, TEM).- Ancient groundwater exploitation systems discovered in archaeological sites.- Groundwater resources management.