Incidents, exceedances and derogations of drinking water quality standards

Incidents, exceedances and derogations of drinking water quality standards

17 Aug 2026

The dashboard presents the results of the data electronically reported by Member States under the recast Drinking Water Directive in 2023 , in particular: data about incidents related to drinking waters affecting the population, at EU and Country level, the major causes of incidents and the remedial actions data about exceedances of drinking water quality standards, at EU and Country level, the major causes of exceedances and the remedial actions data about derogations from established drinking water quality standards, at EU and Country level. Member States that have reported are listed in the Note at the bottom of the page.

Overview of the number of incidents reported by Member States

Overview of the number of incidents reported by Member States

17 Aug 2026

The dashboard presents an overview of the number of incidents related to drinking water reported by Member States under the recast Drinking Water Directive in 2023 . Member States that have reported are listed in the Note at the bottom of the page.

Overview of exceedances covered or not covered by a derogation

Overview of exceedances covered or not covered by a derogation

17 Aug 2026

The dashboard presents an overview of the exceedances covered or not covered by a derogation as reported by Member States under the recast Drinking Water Directive in 2023 . Member States that have reported are listed in the Note at the bottom of the page.

Overview of derogations per Member States

Overview of derogations per Member States

17 Aug 2026

The dashboard presents an overview of the number of derogations reported by Member States under the recast Drinking Water Directive in 2023 . Member States that have reported are listed in the Note at the bottom of the page.

WSZs where derogations from drinking water quality standards are observed

WSZs where derogations from drinking water quality standards are observed

17 Aug 2026

The dashboard presents the results of the data electronically reported by Member States under the recast Drinking Water Directive in 2023 , in particular the water supply zones, where derogations from drinking water quality standards are observed, related derogations and population affected.Member States that have reported are listed in the Note at the bottom of the page.

WSZs where exceedances of drinking water quality standards are observed

WSZs where exceedances of drinking water quality standards are observed

17 Aug 2026

The dashboard presents the results of the data electronically reported by Member States under the recast Drinking Water Directive in 2023 , in particular the water supply zones, where exceedances of drinking water quality standards are observed in various percentage of the samples, related derogations and population affected. Member States that have reported are listed in the Note at the bottom of the page.