# The Private Water Supplies Regulations (Northern Ireland) 2017, Regulation 6: Use of products or substances in private supplies


(1) Any product or substance used in the preparation or distribution of a private supply of water, or impurities associated with such products or substances, must not be present in water at the point at which a sample is taken in accordance with regulation 12 that would make it unwholesome or constitute a potential risk to human health.
(2) Where disinfection forms part of the preparation or distribution of a private supply, the relevant person must—
(a) design, operate and maintain the disinfection process so as to keep disinfection by-products as low as possible without compromising the effectiveness of the disinfection;
(b) ensure that the effectiveness of the disinfection process is maintained; and
(c) verify the effectiveness of the disinfection process.

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Source: https://www.legislation.gov.uk/nisr/2017/211/regulation/6 (the official version)
Page: https://openlegislation.uk/private-water-supplies-regulations-northern-ireland-2017/regulation-6
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.