Overview
- The advisory covers roughly 125,000 service connections across specified postcodes in parts of Utrecht, Bilthoven, Bosch en Duin, Bunnik, De Bilt, Groenekan, Maarssen, Oud Zuilen, Tienhoven, Westbroek and Zeist.
- Residents should boil tap water for three minutes before drinking, cooking or brushing teeth, according to Vitens.
- The affected storage reservoir has been taken out of service to prevent further contamination of the network.
- The notice remains in place until two consecutive clean samples are confirmed, a process that may take several days, with a status update expected by 4 November.
- Supermarkets report queues and temporary shortages of bottled water as Vitens urges those able to boil at home to leave supplies for people who cannot, and vulnerable groups are advised to exercise extra caution and consult a GP or the GGD if needed.