# The Water Supply (Water Fittings) Regulations 1999, Paragraph: Fluid category 5


Fluid representing a serious health hazard because of the concentration of pathogenic organisms, radioactive or very toxic substances, including any fluid which contains–
(a) faecal material or other human waste;
(b) butchery or other animal waste; or
(c) pathogens from any other source.

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Source: https://www.legislation.gov.uk/uksi/1999/1148/schedule/1/paragraph/wrapper5n1 (the official version)
Page: https://openlegislation.uk/water-supply-water-fittings-regulations-1999/schedule-1/paragraph-wrapper5n1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.