# The Water Supply (Water Quality) Regulations 2000, Regulation 10: Sampling: further provisions


As soon as a water undertaker has reasonable grounds for believing that any element, organism or substance, other than residual disinfectant or a parameter, whether alone or in combination with a parameter or any other element, organism or substance, may cause the supply within any of its water supply zones to be a supply which does not satisfy—
(a) the provisions of Part III of these Regulations or,
(b) if a departure has been authorised under Part VI, those provisions as read with the terms of that authorisation,
it shall take, or cause to be taken, sufficient samples from water within that zone (whether from a service reservoir, a treatment works or otherwise) in respect of that element, organism or substance, in order to establish whether that water is wholesome.

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Source: https://www.legislation.gov.uk/uksi/2000/3184/regulation/10 (the official version)
Page: https://openlegislation.uk/water-supply-water-quality-regulations-2000/regulation-10
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.