Part 2 Indicator ParametersI1
England and Wales
TABLE C:
Prescribed concentrations, values or states
Parameters | Maximum concentration or value | Units of Measurement |
|---|---|---|
(1) The water should not be aggressive. | ||
(2) Only in the case of surface water or groundwater that has been influenced by surface water. | ||
| Ammonium | 0.50 | mg/l |
| Chloridef1 | 250 | mg/l |
| Clostridium perfringens (including spores) | 0 | Number/100ml |
| Coliform bacteria | 0 | Number/100ml (Number/250ml in the case of water put into bottles or containers) |
| Colony counts | No abnormal change | Number/ml at 22ºC |
| Conductivity | 2500 | µS/cm at 20ºC |
| Hydrogen ion | 9.5 (maximum) | pH value |
6.5 (minimum) (in the case of still water put into bottles or containers the minimum is 4.5) | pH value | |
| Sulphate | 250 | mg/l |
| Total organic carbon (TOC) | No abnormal change | mgC/l |
| Turbidityf2 | 1 | NTU |
Annotations
Commencement
- I1
Sch. 1 Pt. 2 in force at 20.11.2017, see reg. 1
Footnotes
- f1
(1)
The water should not be aggressive.
- f2
(2)
Only in the case of surface water or groundwater that has been influenced by surface water.