# The Private Water Supplies (England) Regulations 2016, Paragraph 4: Frequency of sampling for Group B parameters

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

Monitoring for a Group B parameter must be undertaken at the frequencies specified in Table 3.
Table 3
Sampling frequencies for a Group B parameter
Volume m3/day
Sampling frequency per year
≤ 10
1
> 10 ≤ 3,300
2
> 3,300 ≤ 6,600
3
> 6,600 ≤ 10,000
4
> 10,000 ≤ 100,000
3 + 1 for each 10,000m3/day of the total volume (rounding up to the nearest multiple of 10,000m3/day)
> 100,000
12 + 1 for each 25,000m3/day of the total volume (rounding up to the nearest multiple of 25,000m3/day)

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Source: https://www.legislation.gov.uk/uksi/2016/618/schedule/2/paragraph/4 (the official version)
Page: https://openlegislation.uk/private-water-supplies-england-regulations-2016/schedule-2/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.