Drinking water

Drinking water is our most important foodstuff. The drinking water supply is therefore categorised as critical infrastructure. The cantons are responsible for overseeing the supply of drinking water, while local communes are responsible for the supply of water to the public. In the event of a severe shortage, the cantons, communes and water supply companies work together to ensure that the public receives an adequate supply.

The Ordinance of 19 August 2020 on Guaranteeing Supplies of Drinking Water in Situations of Severe Shortage (DWSO; SR 531.32) sets out the responsibilites of the Confederation, cantons, communes and others in this area. The measures it contains boost the resilience of the drinking water supply in normal operation, meaning that any potential severe shortage can be avoided or quickly remedied.