# The Water Supply (Water Quality) Regulations 2018, Regulation 11: Sampling for particular substances and parameters


(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 supplementary licensee introduces water, a supplementary 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/wsi/2018/647/regulation/11 (the official version)
Page: https://openlegislation.uk/water-supply-water-quality-regulations-2018/regulation-11
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.