Directive 2006/118/EC of the European Parliament and of the Council on the protection of groundwater against pollution and deterioration.

Pursuant to article 17, paragraphs 1 and 2 of Directive 2000/60/EC, this Directive lays down measures to prevent and control groundwater pollution, including: (a) criteria for the assessment of good groundwater chemical status; and (b) criteria for the identification and reversal of significant and sustained upward trends and for the definition of starting points for trend reversals. Moreover, the Directive complements the provisions preventing or limiting inputs of pollutants into groundwater contained in Directive 2000/60/EC, and aims to prevent the deterioration of the status of all bodies of groundwater.