1. Council Directive 98/83/EC of 3 November 1998 on the quality of water intended for human consumption.
2. Council Directive 76/160/EEC of 8 December 1975 concerning the quality of bathing water.
3. Council Directive 80/68/EEC of 17 December 1979 on the protection of goundwater against pollution caused by certain dangerous substances.
4. The Effectiveness of European Union Environmental Policy;W Grant,2000
5. Council Directive 2000/60/EC of 23 October 2000 establishing a framework for Community action in the field of water policy (Water Framework Directive)