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Regulation 5
SCHEDULE 1Concentrations and Values
This schedule has no associated Explanatory Memorandum
PART 1Wholesomeness
TABLE A
MICROBIOLOGICAL PARAMETERS
Directive requirements – Prescribed concentrations and values
Parameters | Maximum concentration or value | Units of Measurement |
---|
Escherichia coli (E. coli) | 0 | Number/100ml |
Enterococci | 0 | Number/100ml |
TABLE B
CHEMICAL PARAMETERS
Directive requirements – Prescribed concentrations and values
Parameters | Maximum concentration or value | Units of Measurement |
---|
|
|
|
|
|
|
|
Acrylamide | 0.10 | μg/l |
Antimony | 5.0 | μgSb/l |
Arsenic | 10 | μgAs/l |
Benzene | 1.0 | μg/l |
Benzo(a)pyrene | 0.010 | μg/l |
Boron | 1.0 | mgB/l |
Bromate | 10 | μgBrO3/l |
Cadmium | 5.0 | μgCd/l |
Chromium | 50 | μgCr/l |
Copper | 2.0 | mgCu/l |
Cyanide | 50 | μgCN/l |
1, 2 dichloroethane | 3.0 | μg/l |
Epichlorohydrin | 0.10 | μg/l |
Fluoride | 1.5 | mgF/l |
Lead | (a) 25 until immediately before 25th December 2013 | μgPb/l |
(b) 10, on and after 25th December 2013 | μgPb/l |
Mercury | 1.0 | μgHg/l |
Nickel | 20 | μgNi/l |
Nitrate | 50 | mgNO3/l |
Nitrite | 0.5 | mgNO2/l |
Pesticides | | |
| 0.030 | μg/l |
| 0.030 | μg/l |
| 0.030 | μg/l |
| 0.030 | μg/l |
| 0.10 | μg/l |
| 0.50 | μg/l |
Polycyclic aromatic hydrocarbons | 0.10 | μg/l |
Selenium | 10 | μgSe/l |
Tetrachloroethene and Trichloroethene | 10 | μg/l |
Trihalomethanes: Total | 100 | μg/l |
Vinyl chloride | 0.50 | μg/l |
National requirements – Prescribed concentrations and values
Parameters | Maximum concentration or value or state | Units of Measurement |
---|
|
Aluminium | 200 | μgAl/l |
Colour | 20 | mg/l Pt/Co |
Iron | 200 | μgFe/l |
Manganese | 50 | μgMn/l |
Nitrite | 0.10 | mgNO2/l |
Odour | Acceptable and no abnormal change | |
Sodium | 200 | mgNa/l |
Taste | Acceptable and no abnormal change | |
Tetrachloromethane | 3 | μg/l |
Turbidity | 4 | NTU |
PART 2Indicator Parameters
Parameters | Maximum concentration or value or state (unless otherwise stated) | Units of measurement |
---|
|
|
|
Ammonium | 0.50 | mgNH4/l |
Chloride | 250 | mgCl/l |
Clostridium perfringens
(including spores)
| 0 | Number/100ml |
Coliform bacteria | 0 | Number/100ml |
Colony counts | No abnormal change
No abnormal change
| Number/1ml at 22°C
Number/1ml at 37°C
|
Conductivity | 2,500 | μS/cm at 20°C |
Hydrogen ion | 9.5 | pH value |
| 6.5 (minimum) | pH value |
Sulphate | 250 | mgSO4/l |
Total indicative dose (for radioactivity) | 0.10 | mSv/year |
Total organic carbon (TOC) | No abnormal change | mgC/l |
Tritium
(for radioactivity)
| 100 | Bq/l |
Turbidity | 1 | NTU |
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