News Details

On 11 May 2026, the revised EU water protection framework came into force, granting the European Chemicals Agency (ECHA) new scientific responsibilities concerning the identification and assessment of chemical pollutants in surface water and groundwater.

The revised framework is established through Directive (EU) 2026/805, which amends the Water Framework Directive, the Environmental Quality Standards Directive and the Groundwater Directive.

These amendments strengthen the EU’s approach to chemical pollution in rivers, lakes, coastal waters and groundwater by updating pollutant lists, introducing additional monitoring obligations and reinforcing the scientific basis for future water-related legislation.

ECHA to Develop Scientific Basis for Water Pollutant Decisions

Under the revised framework, ECHA will support the European Commission in identifying priority pollutants, developing environmental quality standards and reviewing substances proposed for EU water watch lists. According to the Directive, ECHA has been given a ‘permanent and clearly circumscribed role’ in prioritising substances for watch lists and pollutant lists under EU water legislation, as well as in deriving science-based quality standards.

ECHA will report every six years on potential updates to the main pollutant lists and associated water quality standards. Within the same cycle, the Agency may also propose harmonised environmental quality standards and groundwater threshold values for regional pollutants. The Agency will also identify and review substances for watch lists substances for both surface water and groundwater every three years. These watchlists are intended to support the monitoring of substances that may pose risks to water quality before they are formally added to EU pollutant lists.

ECHA states that it will consider monitoring data, scientific publications, information from other regulatory frameworks and remote sensing data when preparing scientific reports. Opinions from ECHA’s Committee for Risk Assessment (RAC) and Committee for Socio-Economic Analysis (SEAC) will also inform the development of proposed quality standard values. Based on these reports, the European Commission may then prepare legislative proposals to update the relevant Directives.

New Measures for PFAS and Pharmaceuticals

The revised legislation introduces additional measures targeting PFAS, pharmaceuticals and other emerging pollutants. The Directive states that PFAS have been detected at more than 70% of groundwater measuring points across the EU and that existing national threshold values are exceeded in a considerable number of locations. The revised framework introduces provisions for adding additional PFAS to pollutant lists for both groundwater and surface waters. It also introduces new provisions concerning pharmaceuticals, microplastics, antimicrobial resistance indicators and mixtures of pollutants.

The Directive also states that Bisphenol A should be added to the list of priority substances and designated a priority hazardous substance. The Commission is also instructed to further assess the cumulative risks of to groups of bisphenols and pesticides in future reviews.

Additionally, the legislation expands the use of watchlists and effect-based monitoring approaches to better address mixture effects and emerging contaminants.

Expanded Monitoring and Reporting Requirements

The revised framework also introduces more frequent electronic reporting obligations and an increased use of digital monitoring tools. Member States will be required to provide validated monitoring data on chemical quality elements in surface water and groundwater every two years, while biological monitoring data for surface waters must be reported every three years.

The Directive also encourages the use of remote sensing technologies, online monitoring systems, AI-supported analysis and earth observation tools, such as Copernicus services, for water quality monitoring.

Member States must transpose the revised legislation into national law by 22 December 2027.