# The Natural Mineral Water, Spring Water and Bottled Drinking Water (England) Regulations 2007, Paragraph 2

Extent: E+W

Treatment of natural mineral waters and spring waters with ozone–enriched air shall not—
(a) modify the physico–chemical composition of the water in terms of its characteristic constituents; or
(b) leave residues in the water which could pose a risk to public health, or, in the case of the substances listed below, above the levels specified.
Treatment residue
Maximum limit (µg/l)
Dissolved ozone
50
Bromate
3
Bromoform
1

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Source: https://www.legislation.gov.uk/uksi/2007/2785/schedule/1/paragraph/2 (the official version)
Page: https://openlegislation.uk/natural-mineral-water-spring-water-and-bottled-drinking-water-england-regulations-2007/schedule-1/paragraph-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.