Article 6Monitoring and analysis
1.Member States shall take all measures necessary to ensure that monitoring for radioactive substances in water intended for human consumption is undertaken in accordance with the monitoring strategies and frequencies set out in Annex II, in order to check whether the values of radioactive substances comply with the parametric values laid down pursuant to Article 5(1).
Member States shall ensure that monitoring is undertaken so as to ensure that the measured values obtained are representative of the quality of the water consumed throughout the year. For water intended for human consumption that is put into bottles or containers intended for sale, this shall be without prejudice to the principles of HACCP as required by Regulation (EC) No 852/2004 and to the principles of official controls as laid down in Regulation (EC) No 882/2004.
2.Monitoring for the ID shall be carried out, and analytical performance characteristics shall be in accordance with the requirements set out in Annex III.
3.Member States shall ensure that any laboratory at which samples are analysed has a system of analytical quality control that is subject to checking by an external organisation approved by the competent authority for that purpose.