It was at the end of October when MEPs approved the revision to the Drinking Water Directive with 300 votes to 98 and 274 abstentions.
The next stage will see the European Parliament enter negotiations with the Council once EU ministers have set their own position on the issue.
The development follows the European Commission (EC) adopting a proposal for a revised drinking water directive on February 1 earlier this year, following a REFIT evaluation of the drinking water Directive.
Commenting on revision, the EC said: “The Directive has been relatively well implemented by Member States, but its approach to monitoring quality at the point of consumption uses parameters determined over 20 years ago.
“This calls for an examination of whether the Directive deals effectively with existing and emerging pressures and ensures that people living in and visiting European Union countries can continue to enjoy high-quality drinking water for decades to come.”
The revised directive will sit alongside other remaining regulations covering water in Europe, including the Water Framework Directive, the Marine Strategy Framework Directive, the Urban Waste Water Treatment Directive and the Nitrates Directive.