# The Private Water Supplies (England) Regulations 2016, Regulation 12: Sampling and analysis

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

(1) When a local authority monitors a private water supply in accordance with regulations 8 to 11, it must take a sample—
(a) if the water is supplied for domestic purposes, from a tap normally used to supply water for human consumption (and which, if there is more than one tap, is representative of the water supplied to the premises);
(b) if the water is used in a food-production undertaking, at the point at which it is used in the undertaking;
(c) if the water is supplied from a tanker, at the point at which it emerges from the tanker;
(d) in any other case, at a suitable point.
(2) The local authority must ensure that the sample is analysed in accordance with Schedule 3.
(3) The further provisions for sampling and analysis in Schedule 3 apply.
(4) Compliance samples for chemical parameters including copper, lead and nickel must take the form of a random daytime sample of one litre volume taken at a consumer’s tap without prior flushing.
(5) All sampling under this regulation—
(a) for chemical parameters in the distribution network must, other than where the sample is taken at a consumer’s tap, be undertaken in accordance with international standard ISO 5667-5 entitled “Water quality. Sampling. Guidance on treatment of drinking water from treatment works and piped distribution systems”;
(b) for microbiological parameters in the distribution network and at a consumer’s tap must be undertaken in accordance with European standard EN ISO 19458 entitled “Water Quality – Sampling for microbiological analysis” using sampling procedure A in the distribution network and sampling procedure B at a consumer’s tap.

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Source: https://www.legislation.gov.uk/uksi/2016/618/regulation/12 (the official version)
Page: https://openlegislation.uk/private-water-supplies-england-regulations-2016/regulation-12
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.