Which water authority do I fall under?
You can check which water board you fall under using the postal code search tool on the website www.waterschappen.nl.
Not sure which water authority you belong to?
- Go to the postal code finder on the website ofwww.waterschappen.nl – my water board.
- Select Open the postal code finder
- Enter your postal code (no space between the 4 digits and 2 letters) and you will see which water board you fall under.
Tip: the 'Open the postal code finder' option works best on your computer or laptop.
Area of operation
Each water authority operates in a specific area, also known as its working area. These areas consist of water catchment areas. The flow of water determines the boundaries of a water authority. The Noorderzijlvest Water Authority operates in a large part of Groningen, North and Central Drenthe, and a small part of Friesland.