# The Surface Waters (Abstraction for Drinking Water) (Classification) Regulations 1996, Regulation 3: Compliance with relevant limits


(1) Subject to paragraphs (2) and (3) below, any waters classified under these Regulations shall be treated in any year as complying with the limit specified in Schedule 1 for the relevant class of waters in relation to a parameter if in that year—
(a) 95 per cent of the samples taken in relation to those waters in accordance with regulation 5 comply with the limit;
(b) none of the samples exceeds the limit by more than 50 per cent;
(c) there is no associated danger to public health where any of the samples exceeds the limit; and
(d) there have been no occasions on which consecutive samples so taken at statistically suitable intervals exceed the limit.
(2) Non-compliant samples shall be ignored for the purposes of paragraph (1) above if they are the result of a flood, natural disaster or abnormal weather conditions.
(3) Paragraph (1)(b) above shall not apply in the case of the limits specified in Schedule 1 in relation to temperature.

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Source: https://www.legislation.gov.uk/uksi/1996/3001/regulation/3 (the official version)
Page: https://openlegislation.uk/surface-waters-abstraction-for-drinking-water-classification-regulations-1996/regulation-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.