The new Drinking Water Directive (DWD) and important developments from 2026 onwards
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The quality and safety of drinking water have been high on the European agenda for years. With the introduction of the revised European Drinking Water Directive (EU 2020/2184), also known as the Drinking Water Directive (DWD), the requirements for drinking water management are being further tightened. From 2026, important parts of this directive will come into effect, with direct consequences for building managers, installers, property owners, and organizations responsible for collective piped water systems.
These developments reinforce the focus on risk-based management, material safety, and monitoring of contaminants. For organizations, this means that insight, control, and demonstrable control measures will become more important than ever.
What is the Drinking Water Directive (DWD)?
The Drinking Water Directive is a European directive that sets requirements for the quality of drinking water within the European Union. The objective of this directive is to protect public health by ensuring that drinking water is safe for consumption and use.
The revised directive (EU 2020/2184) replaces the previous version from 1998 and introduces a more modern, risk-based approach. This not only considers the quality of the drinking water itself but also the entire chain: from source to tap.
This means that piped water systems within buildings are explicitly part of the responsibility to ensure drinking water safety.
Mandatory monitoring of new substances, including PFAS
A significant development within the new directive is the introduction of stricter standards for chemical substances, including PFAS (per- and polyfluoroalkyl substances). These substances are widely used in industrial applications and can persist in the environment for a long time.
From 2026, European limit values for PFAS in drinking water will apply. This means that drinking water companies and competent authorities are obliged to systematically monitor these substances and take measures when exceedances are identified.
While this obligation primarily rests with drinking water companies, it emphasizes the broader trend towards stricter control and transparency within the entire drinking water chain.
Stronger focus on risk-based management of installations
One of the most important changes is the obligation for a risk-based approach to drinking water management. This means that potential risks must be systematically identified, assessed, and managed.
For piped water systems within buildings, this includes:
- insight into the structure and operation of the installation
- identification of risky components and conditions
- implementation of appropriate control measures
- periodic inspection and evaluation
This approach aligns closely with existing obligations under Dutch legislation, such as the Drinking Water Decree and the duty of care for building owners and managers. The new European directive strengthens these obligations and emphasizes the importance of demonstrable and structured management.
Stricter requirements for materials and components
In addition to monitoring and risk management, the directive also imposes stricter requirements on materials that come into contact with drinking water. Materials must comply with new hygienic and chemical requirements to prevent harmful substances from entering the drinking water.
This has implications for:
- pipes and fittings
- valves and couplings
- taps and shower facilities
- filters and other components
Manufacturers and installers must demonstrably comply with these requirements, which contributes to higher reliability and safety of piped water systems.
What does this specifically mean for building managers and installers?
The introduction of the new Drinking Water Directive means that organizations must pay even more attention to the management and safety of their piped water systems.
Key points of attention include:
- keeping risk analyses up-to-date
- correctly implementing control measures
- preventing stagnation and reduced flow
- ensuring the technical condition of the installation
- documenting management and maintenance
Organizations must be able to demonstrate that they are taking their responsibility and that the installation is operated in a safe and controlled manner.
Drinking water safety as a continuous process
The revised Drinking Water Directive underlines that drinking water safety is not a one-off action, but a continuous process of monitoring, management, and improvement. Installations change, usage patterns vary, and legislation and regulations are further developed. This requires a structural and professional approach.
By having timely insight into the installation, managing risks, and correctly implementing control measures, organizations can comply with applicable legislation and, at the same time, ensure the safety of users.
Support for compliance and safe management
At H2O Enterprise, we support organizations in gaining insight into, assessing, and managing piped water systems in accordance with applicable laws and regulations and the latest European developments.
We closely follow developments around the Drinking Water Directive and national implementation and help organizations ensure safe, compliant, and future-proof drinking water installations.
Would you like to know what these developments mean for your installation or organization? Feel free to contact us for advice or support.