# The Private Water Supplies (Wales) Regulations 2017, Paragraph 2: Frequency of sampling

Extent: E+W

Sampling for Group A parameters must be carried out at frequencies specified in Table 2.
Table 2
Sampling frequency for Group A parameters
Volume m3/day
Sampling frequency per year
≤10
1
˃ 10 ≤ 100
2
˃ 100 ≤ 1,000
4
˃ 1,000 ≤ 2,000
10
˃ 2,000 ≤ 3,000
13
˃ 3,000 ≤ 4,000
16
˃ 4,000 ≤ 5,000
19
˃ 5,000 ≤ 6,000
22
˃ 6,000 ≤ 7,000
25
˃ 7,000 ≤ 8,000
28
˃ 8,000 ≤ 9,000
31
˃ 9,000 ≤ 10,000
34
˃ 10,000
4 + 3 for each 1,000 m3/day of the total volume (rounding up to the nearest multiple of 1,000 m3/day)

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Source: https://www.legislation.gov.uk/wsi/2017/1041/schedule/2/paragraph/2 (the official version)
Page: https://openlegislation.uk/private-water-supplies-wales-regulations-2017/schedule-2/paragraph-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.