Municipal sewer system

The Hague has an extensive sewer system that ensures healthy living in the city. The system that collects and removes sewage and rainwater encompasses about 1,300 km of underground pipes and features 20,000 inspection shafts under the city’s streets.

All households and businesses in The Hague are connected to this system.

For more information about how the local sewer system functions, please visit the Dutch part of our site: Hoe werkt het riool?

To learn which areas of the city's sewer system are slated for replacement, pleae visit the information under Rioolwerkzaamheden. If the sewer system in your street is scheduled to be replaced, you will receive a letter before the work begins. The letter will contain information about the timing and the contact person for the project.

History of the Sewer System

When people began living in cities, the need arose for better facilities. In The Hague a sewer system was laid from approximately 1880.

FAQ – Replacement of the sewer system

The underground municipal sewer system is more than 1,300 km long and is continuously being monitored and maintained. Here you will find the most frequently asked questions about repair works.

NOT a garbage disposal

All buildings in The Hague are connected to the municipal sewer system. You can contribute to its upkeep and good functioning by obeying a few simple rules.