Parametric concentrations and values for indicator parameters Parametric concentrations and values for indicator parametersF1
| 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 |
Annotations
Textual amendments
- F1
Sch. 12 inserted (6.4.2018) by The Natural Mineral Water, Spring Water and Bottled Drinking Water (England) (Amendment) Regulations 2018 (S.I. 2018/352), reg. 1(1), Sch. 2