Samples and analyses for the main part of the monitoring of natural mineral waters are carried out by a laboratory that meets the requirements defined by order of the Minister for Health. These samples and analyses are carried out by the laboratory located in the water conditioning plant or in the spa establishment or, failing this, by a laboratory accredited by the French Accreditation Committee or by any other accreditation body that has signed a multilateral recognition agreement within the framework of the European Coordination of Accreditation Bodies, for carrying out samples and analyses of the parameters concerned.
Samples may be taken by an employee of the water conditioning plant or the spa, provided that the sampling activity is included in the scope of the quality management system set up by the operator.
The results of the analyses for the main part of the monitoring are sent to the Director General of the Regional Health Agency, who informs the Prefect as necessary.