# 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 2: Sampling frequencies

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

Table 1. Minimum frequency of sampling and analysis for compliance monitoring
Note 1: A supply zone is a geographically defined area within which water intended for human consumption comes from one or more sources and within which the water quality can be considered as being approximately uniform.
Note 2: The volumes are calculated as averages taken over a calendar year. The number of inhabitants in a supply zone may be used instead of the volume of water to determine the minimum frequency, assuming water consumption of 200 l/(day*capita).
Note 3: The frequency indicated is calculated as follows: e.g. 4 300 m3/d = 16 samples for Group A parameters (four for the first 1 000 m3/d + 12 for additional 3 300 m3/d).
Note 4: For water suppliers, where an exemption has not been granted under point (b) of Article 3(3), Member States shall lay down the minimum sampling frequency for parameters of Groups A and B, provided that core parameters are monitored at least once per year.
Note 5: Member States may reduce the sampling frequency, provided that all parameters set in accordance with Article 5 are monitored at least once every six years and are monitored in cases where a new water source is integrated into the water supply system or changes to that system, as a result of which a potentially adverse effect on the quality of water is to be expected, are made.
Volume of water distributed or produced each day within a supply zone(See Notes 1 and 2) m3
Group A parameternumber of samples per year
Group B parameternumber of samples per year
< 10
> 0 (See Note 4)
> 0 (See Note 4)
≥ 10
≤ 100
2
1 (See Note 5)
> 100
≤ 1 000
4
1
> 1 000
≤ 10 000
4 for the first 1 000 m3/d
+ 3 for each additional 1 000 m3/d and part thereof of the total volume
(See Note 3)
1 for the first 1 000 m3/d
+ 1 for each additional 4 500 m3/d and part thereof of the total volume
(See Note 3)
> 10 000
≤ 100 000
3 for first 10 000 m3/d
+ 1 for each additional 10 000 m3/d and part thereof of the total volume
(See Note 3)
> 100 000
12 for first 100 000 m3/d
+ 1 for each additional 25 000 m3/d and part thereof of the total volume
(See Note 3)

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Source: https://www.legislation.gov.uk/eudr/2020/2184/annex/II/part/B/division/2 (the official version)
Page: https://openlegislation.uk/eu-directive-2020-2184/annex-II/part-B/division-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.