SCHEDULE 1Concentrations or Values
PART 2Indicator Parameters
TABLE CPrescribed concentrations, values or states
Parameters | Maximum concentration or value or state (unless otherwise stated) | Units of measurement |
|---|---|---|
Ammonium | 0.50 | mg/l |
Chloride (i) | 250 | mg/l |
Clostridium perfringens | 0 | Number/100ml |
(including spores) | ||
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 22°C |
No abnormal change | Number/ml at 37°C | |
Conductivity (i) | 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 | |
Sulphate (i) | 250 | mg/l |
Total indicative dose (for radioactivity) (ii) | 0.10 | mSv/year |
Total organic carbon (TOC) | No abnormal change | mgC/l |
Tritium | ||
(for radioactivity) | 100 | Bq/l |
Turbidity(iii) | 1 | NTU |