# Directive (EU) 2020/2184 of the European Parliament and of the Council of 16 December 2020 on the quality of water intended for human consumption (recast) (Text with EEA relevance), Division 1: List of parameters

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

Group A
The following parameters (Group A) shall be monitored in accordance with the monitoring frequencies set out in Table 1 of point 2:
(a) Escherichia coli (E. coli), intestinal enterococci, coliform bacteria, colony count 22 °C, colour, turbidity, taste, odour, pH and conductivity;
(b) other parameters identified as relevant in the monitoring programme, in accordance with Article 5(3) and, where relevant, through a risk assessment of the supply system as set out in Article 9 and Part C of this Annex.
Under specific circumstances, the following parameters shall be added to the Group A parameters:
(a) ammonium and nitrite, if chloramination is used;
(b) aluminium and iron, if used as water treatment chemicals.
Escherichia coli (E. coli) and intestinal enterococci are considered ‘core parameters’ and their monitoring frequencies shall not be the subject of a reduction due to a risk assessment of the supply system in accordance with Article 9 and Part C of this Annex. They shall always be monitored at least at the frequencies set out in Table 1 of point 2.
Group B
In order to determine compliance with all parametric values set out in this Directive, all other parameters not analysed under Group A and set in accordance with Article 5, except for parameters in Part D of Annex I, shall be monitored at least at the frequencies set out in Table 1 of point 2, unless a different sampling frequency is determined on the basis of a risk assessment of the supply system carried out in accordance with Article 9 and Part C of this Annex.

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Source: https://www.legislation.gov.uk/eudr/2020/2184/annex/II/part/B/division/1 (the official version)
Page: https://openlegislation.uk/eu-directive-2020-2184/annex-II/part-B/division-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.