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For the Netherlands, Belgium
and North Rhine-Westphalia

Water worksheets on drinking water installations

May 19, 2026 | From the editors

In the Netherlands, drinking water installations are subject to strict guidelines and standards, as laid down in the Building Decree and the Drinking Water DecreeAn important standard is NEN 1006, which defines the general requirements for drinking water installations. This standard, published by the Dutch Standardization Institute (NEN), ensures consistency and quality in the drinking water supply.

The Water Worksheets provide a detailed elaboration of NEN 1006 and are important for realizing safe and functional drinking water installations. These worksheets include both provisions and guidelines, which serve as standard conditions for the execution of these installations. This helps to standardize the execution and ensures that the requirements are met.

Since the revision of NEN 1006 in 2015, the Water Worksheets have been updated in various phases. This has resulted in a series of documents specifically designed to support professionals in their work. The version dates of the worksheets, such as 'Dec 2015' and 'Jan 2018', indicate the updates that have been implemented.