# The Water Supply (Water Quality) Regulations 1989, Regulation 15: Interpretation


In this Part–
“the standard number” means such number specified in the column headed “Standard” in Table 7 as is applicable to the parameter in question by reference to the volume of water supplied for domestic purposes from the relevant water supply zone during the preceding year; and
“reduced number” means the relevant reduced number (if any) shown in Table 7.

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Source: https://www.legislation.gov.uk/uksi/1989/1147/regulation/15 (the official version)
Page: https://openlegislation.uk/water-supply-water-quality-regulations-1989/regulation-15
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.