Hydrogeology is the science of the behaviour of water in the underground irrespective of whether the condition of the water is solid (ice), fluid (groundwater) or gaseous. Hydrogeology also includes the interchange between groundwater and surface water (receiving water and bank-filtrated water). In general, water moves in the underground within the cavities or voids of the soil, the fissures and joints of the rock and the cave systems of the karst …