GWD - Article 3.4
Keywords: identification, reference conditions, groundwater, cooperation, water quality status, transboundary
4. Where a body or a group of bodies of groundwater extends beyond the territory of the Community, the Member State(s) concerned shall endeavour to establish threshold values in coordination with the non-Member State(s) concerned, in accordance with Article 3(5) of Directive 2000/60/EC.