Framework legislation includes:

Natural Mineral Water and Spring Water: Directive 2009/54/EC of the European Parliament and of the Council on the exploitation and marketing of natural mineral waters, sets the requirements for the exploitation and marketing of natural mineral waters and spring waters. This specifies their safety requirements and mandatory controls.

In the UK, this is also covered by The Natural Mineral Water, Spring Water and Bottled Drinking Water Regulations 2007.

The Drinking Water Directive (DWD), Council Directive 98/83/EC, sets quality standards for drinking water quality at the tap (microbiological, chemical and organoleptic parameters) and the general obligation that drinking water must be wholesome and clean.