Article 4General obligations
Without prejudice to the provisions laid down in point a of Article 6(3) of Directive 96/29/Euratom(1), Member States shall take all measures necessary to establish an appropriate monitoring programme for water intended for human consumption, to ensure that in the event of non-compliance with the parametric values laid down pursuant to this Directive:
it shall be assessed whether that poses a risk to human health which requires action and,
remedial action shall be taken, where necessary, to improve the quality of water to a level which complies with requirements for the protection of human health from a radiation protection point of view.
Council Directive 96/29/Euratom of 13 May 1996 laying down basic safety standards for the protection of the health of workers and the general public against the dangers arising from ionizing radiation (OJ L 159, 29.6.1996, p. 1).