vannverk

Norwegian Wikipedia has an article on:

vannverk

Wikipedia ^no

From vann +‎ verk, compare with Danish vandværk.

vannverk n (definite singular vannverket, indefinite plural vannverk or vannverker, definite plural vannverka or vannverkene)

1. a waterworks (facility that treats and supplies clean water)

• vassverk

• “vannverk” in The Bokmål Dictionary.
• “vannverk” in Det Norske Akademis ordbok (NAOB).