NAGRA Opalinus Clay (…002 - Version 1
FEP 18.1.5 Deep groundwater extraction

Deep groundwaters may be abstracted for human use (e.g. mineral water, household/drinking water, spas) and agricultural use (e.g. irrigation, animal watering). The deep groundwaters could be exploited as a water source for human consumption especially in the future if, for example, nearer surface groundwater and surface waters had become polluted. In this case the water would most probably be tested for various natural and artificial contaminants before use.