- Draft legislation
This is a draft item of legislation. This draft has since been made as a Scottish Statutory Instrument: The Public Water Supplies (Scotland) Regulations 2014 No. 364
Regulations 2(1), 2(4) and 15(5)
(1) Item | (2) Parameter | (3) Method | ||||||||||||||||||||||||||
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(a) The composition of m-CP agar is: Basal medium— Dissolve the ingredients of the basal medium, adjust pH to 7.6 and autoclave at 121°C for 15 minutes.
Allow the medium to cool and add—
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1. | Clostridium perfringens (including spores) | Membrane filtration followed by anaerobic incubation of the membrane on m-CP agar(a) at 44 ± 1°C for 21 ± 3 hours. Count opaque yellow colonies that turn pink or red after exposure to ammonium hydroxide vapours for 20 to 30 seconds. | ||||||||||||||||||||||||||
2. | Coliform bacteria | ISO 9308-1 | ||||||||||||||||||||||||||
3. | Colony count 22°C — enumeration of culturable microorganisms | prEN ISO 6222 | ||||||||||||||||||||||||||
4. | Colony count 37°C — enumeration of culturable microorganisms | prEN 6222 | ||||||||||||||||||||||||||
5. | Enterococci | ISO 7899-2 | ||||||||||||||||||||||||||
6. | Escherichia coli | ISO 9308-1 | ||||||||||||||||||||||||||
Notes— |
(1) Item | (2) Parameter | (3) Trueness % of prescribed concentration or value | (4) Precision % of prescribed concentration or value | (5) Limit of detection % of prescribed concentration or value |
---|---|---|---|---|
Notes— | ||||
(a) The method of analysis should determine total cyanide in all forms. | ||||
(b) The capabilities required apply in relation to each individual pesticide. | ||||
(c) The capabilities required apply in relation to each individual substance comprising PAH: Total at 25% of the prescribed concentration or value for PAH: Total. | ||||
(d) The capabilities required apply at 50% of the prescribed concentration or value for PAH: Total. | ||||
(e) The capabilities required apply in relation to prescribed concentration or value in Table B. | ||||
(f) The capabilities required apply in relation to prescribed concentration or value in Table C. | ||||
In this Schedule “Pesticide”, “PAH: Total” and “THM: Total” have the meanings given in Schedule 1. | ||||
1. | Aluminium | 10 | 10 | 10 |
2. | Ammonium | 10 | 10 | 10 |
3. | Antimony | 25 | 25 | 25 |
4. | Arsenic | 10 | 10 | 10 |
5. | Benzene | 25 | 25 | 25 |
6. | Benzo(a)pyrene | 25 | 25 | 25 |
7. | Boron | 10 | 10 | 10 |
8. | Bromate | 25 | 25 | 25 |
9. | Cadmium | 10 | 10 | 10 |
10. | Chloride | 10 | 10 | 10 |
11. | Chromium | 10 | 10 | 10 |
12. | Colour | 10 | 10 | 10 |
13. | Conductivity | 10 | 10 | 10 |
14. | Copper | 10 | 10 | 10 |
15. | Cyanide(a) | 10 | 10 | 10 |
16. | 1,2-dichloroethane | 25 | 25 | 10 |
17. | Fluoride | 10 | 10 | 10 |
18. | Iron | 10 | 10 | 10 |
19. | Lead | 10 | 10 | 10 |
20. | Manganese | 10 | 10 | 10 |
21. | Mercury | 20 | 10 | 20 |
22. | Nickel | 10 | 10 | 10 |
23. | Nitrate | 10 | 10 | 10 |
24. | Nitrite | 10 | 10 | 10 |
25. | Pesticide(b) | 25 | 25 | 25 |
26. | PAH: Total(c) | 25 | 25 | 25 |
27. | Selenium | 10 | 10 | 10 |
28. | Sodium | 10 | 10 | 10 |
29. | Sulphate | 10 | 10 | 10 |
30. | Tetrachloroethene(d) | 25 | 25 | 10 |
31. | Tetrachloromethane | 20 | 20 | 20 |
32. | Trichloroethene(d) | 25 | 25 | 10 |
33. | THM: Total(c) | 25 | 25 | 10 |
34. | Turbidity(e) | 10 | 10 | 10 |
35. | Turbidity(f) | 25 | 25 | 25 |
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