1. Directive 2000/60/EC of the European Parliament and of the Council of 23 October 2000, establishing a framework for Community action in the field of water policy
2. Council Directive 91/271/EEC of 21 May 1991, concerning urban waste water collection and treatment
3. Council Directive 91/676/EEC of 12 December 1991 concerning the protection of waters against pollution by nitrates from agricultural sources
4. Council Directive 98/83/EC of 3 November 1998 on the quality of water intended for human consumption
5. Directive 2006/118/EC of the European Parliament and of the Council of 12 December 2006 on the protection of groundwater against pollution and deterioration