EU Drinking Water Directive
In its Communication on the European Citizens' Initiative "Right2Water", COM(2014)177 final, the Commission announced its intention to launch an EU-wide public consultation on the Drinking Water Directive, notably in view of improving access to quality drinking water in the EU.
'Drinking water' covers all water intended for human consumption or other domestic purposes. The 'Drinking Water Directive' aims at the protection of human health from the adverse effects of any contamination. It ensures that water at the consumer tap is wholesome and clean. Natural mineral waters are excluded. Bottled water including natural mineral water has to satisfy the requirements of food law.
For more information, the full text of the Drinking Water Directive 98/83/EC directive is available in all official languages here