Office of Public Sector Information

Office of Public Sector Information

Advanced Search

Main menu and contents

Supplementary menus and contents

Related Pages
Feeds

SCHEDULE 2 continued    PART 2

Page 5 of 9

Previous Next

First page 1 2 3 4 5 6 7 8 9 Last page

PART 2 Prescribed concentrations or values

Table A

Column 1 Column 2 Column 3 Column 4
Item Parameters Units of Measurement Concentration or Value (maximum unless otherwise stated)
1. Colour mg/1 Pt/Co scale 20
2. Turbidity NTU 4
3. Odour Dilution number 3 at 25°C
4. Taste Dilution number 3 at 25°C
5. Sulphate mg SO4/1 250
6. Sodium mg Na/l 200
7. Nitrate mg NO3/l 50 (note 1)
8. Nitrite mg NO2/l 0.5 (note 1)
9. Aluminium μgAl/l 200
10. Copper mg Cu/l 2
11. Fluoride mg F/l 1.5
12. Hydrogen ion concentration pH units

4.5 (minimum)

9.5 (maximum)
13. Tritium (for radioactivity) Bq/l 100
14. Total indicative dose mSv/year 0.10 (note 2)
15. Manganese μg Mn/l 50

Notes:

3.  The concentration (mg/l) of nitrate divided by 50 added to the concentration (mg/l) of nitrite divided by 3 must not exceed 1.

4.  Excluding tritium, potassium-40, radon and radon decay products.

Table B
Column 1 Column 2 Column 3 Column 4
Item Parameters Units of Measurement Maximum Concentration
1. Arsenic μg As/l 10
2. Cadmium μg Cd/l 5
3. Cyanide μg CN/l 50
4. Chromium μg Cr/l 50
5. Mercury μg Hg/l 1
6. Nickel μg Ni/l 20
7. Selenium μg Se/l 10
8. Antimony μg Sb/l 5
9. Lead μg Pb/l 10
10. Pesticides and related products:
— individual substances μg/l 0.10 (notes 1 and 2)
— total substances μg/l 0.50 (notes 1 and 3)
11. Polycyclic aromatic Hydrocarbons μg/l 0.1 sum of concentrations of specified compounds (note 4)
12. Bromate μg BrO3/l 10

Notes:

1.  “Pesticides” means:

  • organic insecticides,

  • organic herbicides,

  • organic fungicides,

  • organic nematocides,

  • organic acaricides,

  • organic algicides,

  • organic rodenticides,

  • organic slimicides, and

related products (inter alia, growth regulators) and their relevant metabolites, degradation and reaction products.

Only those pesticides which are likely to be present in a given water need to be monitored.

2.  The maximum concentration applies to each individual pesticide. In the case of aldrin, dieldrin, heptaclor and heptachlor epoxide the maximum concentration is 0.030 μg/l.

3.  The maximum concentration for “total substances” refers to the sum of the concentrations of all individual pesticides detected and quantified in the monitoring procedure.

4.  The specified compounds are benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(ghi)perylene, indeno(1.2,3-cd) pyrene.

Table C
Column 1 Column 2 Column 3 Column 4
Item Parameters Units of Measurement Maximum Concentration
1. Escherichia coli(E.coli) number/250 ml 0/250 ml
2. Enterococci number/250 ml 0/250 ml
3. Colony count 22°C number/ml 100/ml (notes 1 and 2)
4. Colony count 37°C number/ml 20/ml (notes 1 and 3)
5. Pseudomonas aeruginosa number/250ml 0/250 ml

Notes:

1.  The total viable colony count should be measured within 12 hours of bottling, with the sample water being kept at a constant temperature during that 12 hour period. Any increase in the total viable colony count of the water between 12 hours after bottling and the time of sale should not be greater than that normally expected.

2.  In 72 hours on agar-agar or an agar-gelatine mixture.

3.  In 24 hours on agar-agar.

Table D
Column 1 Column 2 Column 3 Column 4
Item Parameters Units of Measurement Maximum Concentration
1. Boron mg/l 1.0
2. Benzo (a) pyrene μg/l 0.010
3. Tetrachloroethene and Trichloroethene μg/l 10 (note 1)
4. Tetrachloromethane μg/l 3
5. Benzene μg/l 1.0
6. 1,2-dichloroethane μg/l 3.0
7. Trichloromethane, Dichlororbromomethane, Dibromochloromethane and Tribromomethane μg/l 100 (note 1)
8. Epichlorohydrin μg/l 0.10 (note 2)
9. Vinyl chloride μg/l 0.50 (note 2)
10. Acrylamide μg/l 0.10 (note 2)

Notes:

1.  The maximum concentration specified applies to the sum of the concentrations of the specified parameters.

2.  The parametric value refers to the residual monomer concentration in the water as calculated according to specifications of the maximum release from the corresponding polymer in contact with the water.

Page 5 of 9

Previous Next

First page 1 2 3 4 5 6 7 8 9 Last page