# The Water Supply (Water Quality) Regulations 2016, Regulation 12: Sampling for particular substances and parameters

Extent: E+W

(1) For the purposes of establishing the quality of water to be supplied to any of its water supply zones, a water undertaker must take or cause to be taken, and analyse or cause to be analysed, not less than the number of samples specified in this Part.
(2) For the purposes of establishing the quality of water to be supplied in any supply system into which a wholesale licensee introduces water, the wholesale licensee must take or cause to be taken, and analyse or cause to be analysed, not less than the number of samples specified in this Part.

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Source: https://www.legislation.gov.uk/uksi/2016/614/regulation/12 (the official version)
Page: https://openlegislation.uk/water-supply-water-quality-regulations-2016/regulation-12
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.