# Directive 2000/60/EC of the European Parliament and of the Council of 23 October 2000 establishing a framework for Community action in the field of water policy, Division 2.4.5: Interpretation and presentation of groundwater chemical status

Extent: E+W+S+N.I.

In assessing status, the results of individual monitoring points within a groundwater body shall be aggregated for the body as a whole. Without prejudice to the Directives concerned, for good status to be achieved for a groundwater body, for those chemical parameters for which environmental quality standards have been set in Community legislation:
the mean value of the results of monitoring at each point in the groundwater body or group of bodies shall be calculated, and
in accordance with Article 17 these mean values shall be used to demonstrate compliance with good groundwater chemical status.
Subject to point 2.5, Member States shall provide a map of groundwater chemical status, colour-coded as indicated below:
Good green
Poor red
Member States shall also indicate by a black dot on the map, those groundwater bodies which are subject to a significant and sustained upward trend in the concentrations of any pollutant resulting from the impact of human activity. Reversal of a trend shall be indicated by a blue dot on the map.
These maps shall be included in the river basin management plan.

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Source: https://www.legislation.gov.uk/eudr/2000/60/annex/V/division/2/division/2.4/division/2.4.5 (the official version)
Page: https://openlegislation.uk/eu-directive-2000-60/annex-V/division-2/division-2.4/division-2.4.5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.