# Council Directive 98/83/EC of 3 November 1998 on the quality of water intended for human consumption, Division: Group A parameters

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

The following parameters (Group A) shall be monitored in accordance with the monitoring frequencies set out in Table 1 of point 3:
(a) Escherichia coli ( E. coli ), coliform bacteria, colony count 22 °C, colour, turbidity, taste, odour, pH, conductivity;
(b) other parameters identified as relevant in the monitoring programme, in accordance with Article 5(3) and, where relevant, through a risk assessment as set out in Part C.
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.

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Source: https://www.legislation.gov.uk/eudr/1998/83/annex/II/part/B/division/2/division/1 (the official version)
Page: https://openlegislation.uk/eu-directive-1998-83/annex-II/part-B/division-2/division-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.