A new online tool now allows residents in France to identify the chemical pollutants present in their tap water at the scale of a specific address. Launched on 16 October 2025 by the organisations Générations Futures and Data for Good, this unprecedented interactive map responds to growing demands for transparency regarding drinking water quality.
The platform is based on official health monitoring data collected by the Regional Health Agencies (ARS) and makes them accessible to the general public in a clear and user-friendly way. By entering an address, users can consult information on the presence of several categories of contaminants, including pesticides and their metabolites, nitrates, PFAS (so-called “forever chemicals”), vinyl chloride monomer and perchlorates.
For each substance, the tool provides:
- the latest available monitoring results,
- information on potential exceedances of regulatory or health thresholds,
- and, when available, historical data covering several years.
Beyond individual access to information, the map highlights significant territorial disparities in drinking water quality, with certain areas more frequently affected by pollutant exceedances. Its launch also comes in a broader context of increased regulatory and public scrutiny, as France has recently been urged by the European Commission to improve public access to mandatory drinking water quality data.
The interactive map is publicly available online and can be consulted by entering a specific address to better understand local drinking water quality.
