# The Natural Mineral Water, Spring Water and Bottled Drinking Water (England) Regulations 2007, Parametric concentrations and values for indicator parameters


Parameter
Parametric concentration or value
Units of
measurement
Further provision
Additional requirements
Aluminium
200
µg/l
Ammonium
0.50
mg/l
Chloride
250
mg/l
The water must not be aggressive.
Clostridium perfringens and spores of Clostridium perfringens
0
number/100ml
This parameter only needs to be checked if the water originates from, or is influenced by, surface water.
Colour
Acceptable to consumers and no abnormal change
Conductivity
2,500
µS cm-1 at 20°C
The water must not be aggressive.
Hydrogen ion concentration
9.5
pH units
The pH of the water must not be lower than 4.5.
The water must not be aggressive.
Iron
200
µg/l
Manganese
50
µg/l
Odour
Acceptable to consumers and no abnormal change
Oxidisability
5.0
mg/l O2
This parameter does not need to be checked if total organic carbon is analysed.
Sulphate
250
mg/l
The water must not be aggressive.
Sodium
200
mg/l
Taste
Acceptable to consumers and no abnormal change
Colony Count 22° C
No abnormal change
Coliform bacteria
0
number/250ml
Total organic carbon
No abnormal change
This parameter does not need not be checked for supplies of less than 10,000m3 a day.
Turbidity
Acceptable to consumers and no abnormal change

---
Source: https://www.legislation.gov.uk/uksi/2007/2785/schedule/12/part/9/crossheading/parametric-concentrations-and-values-for-indicator-parameters (the official version)
Page: https://openlegislation.uk/natural-mineral-water-spring-water-and-bottled-drinking-water-england-regulations-2007/schedule-12/part-9/crossheading-parametric-concentrations-and-values-for-indicator-parameters
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.