SCHEDULE 1Prescribed concentrations or values
PART 2Indicator parameters (excluding radioactive substances)
Table CPrescribed concentrations, values or states
Parameters | Maximum concentration or value or state (unless otherwise stated) | Units of measurement |
|---|---|---|
Ammonium | 0.50 | mg/l |
Chloride1 | 250 | mg/l |
Clostridium perfringens (including spores) | 0 | Number/100ml |
Number/100ml (Number/250 | ||
Coliform bacteria | 0 | ml in the case of water put into bottles of containers) |
No abnormal change | Number/ml at 22° | |
Colony counts | No abnormal change | Number/ml at 37°C |
Conductivity1 | 2500 | μS/cm at 20°C |
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 | |
Sulphate1 | 250 | mg/l |
Total organic carbon (TOC) | No abnormal change | mgC/l |
Turbidity2 | 1 | NTU |
1 The water should not be aggressive. | ||
2 Only in the case of surface water or groundwater that has been influenced by surface water. | ||