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?

  1. Go to the postal code finder on the website ofwww.waterschappen.nl – my water board.
  2. Select Open the postal code finder
  3. 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.