# The Natural Mineral Water, Spring Water and Bottled Drinking Water (England) Regulations 2007, Part 3: Parametric concentrations for chemical parameters Parameter Parametric concentration Unit of measurement Further provision Acrylamide 0.10 µg/l Antimony 5.0 µg Sb/l Arsenic 10 µg As/l Benzene 1.0 µg/l Benzo(a)pyrene 0.010 µg/l Boron 1.0 mg/l Bromate 10 µg/l BrO3/l Cadmium 5.0 µg Cd/l Chromium 50 µg Cr/l Copper 2.0 mg Cu/l Cyanide 50 µg CN/l 1,2-dichloroethane 3.0 µg/l Epichlorohydrin 0.10 µg/l Fluoride 1.5 mg F/l Lead 10 µg Pb/l Mercury 1.0 µg Hg/l Nickel 20 µg Ni/l Nitrate 50 mg NO3/l The concentration (mg/l) of nitrate divided by 50 added to the concentration (mg/l) of nitrite divided by 3 must not exceed 1. Nitrite 0.50 mg NO2/l The concentration (mg/l) of nitrate divided by 50 added to the concentration (mg/l) of nitrite divided by 3 must not exceed 1. Pesticides— Only those pesticides which are likely to be present in a given water must be monitored. (a) individual substances— (i) in the case of aldrin, dieldrin, heptachlor and heptachlor epoxide 0.030 µg/l The parametric concentration applies to each individual pesticide. (ii) in the case of other individual pesticides 0.10 µg/l The parametric concentration applies to each individual pesticide. (b) total pesticides 0.50 µg/l The concentration for “total pesticides” refers to the total sum of the concentrations of all the individual pesticides detected and quantified in the monitoring procedure. Polycyclic aromatic hydrocarbons 0.10 µg/l The parametric concentration applies to the total sum of the concentrations of all the individual polycyclic aromatic hydrocarbons detected and quantified in the monitoring procedure. Selenium 10 µg Se/l Tetrachloroethene and trichloroethene 10 µg/l The parametric concentration applies to the total sum of the concentrations of both of the parameters specified in the first column. Trichloromethanes 100 µg/l The parametric concentration applies to the total sum of the concentrations of all the individual trichloromethanes detected and quantified in the monitoring procedure. Vinyl chloride 0.50 µg/l --- Source: https://www.legislation.gov.uk/uksi/2007/2785/schedule/2/part/3 (the official version) Page: https://openlegislation.uk/natural-mineral-water-spring-water-and-bottled-drinking-water-england-regulations-2007/schedule-2/part-3 Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.