CERN’s Drinking Water

CERN’s drinking water is monitored on a regular basis. A certified independent laboratory takes and analyses samples to verify that the water complies with national and European regulations for safe drinking water. Nevertheless, the system that supplies our drinking water is very old and occasionally, especially after work has been carried out on the system, the water may become cloudy or discoloured, due to traces of corrosion.

For this reason, we recommend:

  • Never use hot water from the tap for drinking or cooking. If you need hot water, then draw water from the cold water tap and heat it.
  • Only drink or cook with cold water. Let the cold water run until it is clear before drinking or making your tea or coffee.

If you have any questions about the quality of CERN’s drinking water, please contact: Jerome Espuche (GS/SEM), Serge Deleval (EN/CV) or Jonathan Gulley (DG/SCG).


by GS Department