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(1) These Regulations may be cited as the Water Supply (Water Quality) (Amendment) Regulations (Northern Ireland) 2010 and shall come into operation on the 20th April 2010.
(2) In these Regulations, “the principal Regulations” means the Water Supply (Water Quality) Regulations (Northern Ireland) 2007.
(3) The Interpretation Act (Northern Ireland) 1954 shall apply to these Regulations as it applies to an Act of the Northern Ireland Assembly.
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(1) The principal Regulations are amended as follows:
(2) In regulation 2 (Interpretation), in paragraph (1) omit the definition for regional health and social services care trust.
(3) In regulation 8, for paragraph (1) substitute—“
(1) The Department, being satisfied that analysis of samples taken from—
(a) any blending point;
(b) the water leaving any service reservoir which receives water from a treatment works before its supply to any consumer; and
(c) the water leaving any treatment works,shall produce data in respect of the parameters specified as items 7, 8, 9 to 15, and 17 to 25 in column (1) of Table 3 in Schedule 3 which are unlikely to differ in material respect from the data that would be produced in respect of those parameters from analysis of samples obtained from sampling points, and hereby authorises the use for the purposes of regulation 6 of samples in relation to those parameters taken from a water supply zone from a blending point, a service reservoir of that description or a treatment works.”
(4) In regulation 17 (investigations: Schedule 1 parameters) omit paragraph (8).
(5) In regulation 18 (investigations: indicator parameters)—
(a) in paragraph (1) after the words “indicator parameters set out in Schedule 2, it shall”, insert “immediately”; and
(b) omit paragraph (4).
(6) In regulation 19 (action by the Department)—
(a) In paragraph (1)(a)(i) omit the words “Part II of Table A or”
(b) In paragraph (2)(a)(i) omit the words “Part II of Table A or”
(c) In paragraph (3)(b) for “risk to human health” substitute “potential danger to human health” and substitute “may” with “shall”.
(7) In regulation 20 (authorisation of temporary supply that is not wholesome), in paragraph (1)(a) omit the words “Part II of Table A or”.
(8) After regulation 26(1) insert—“
(1A) A water undertaker must—
(a) design, operate and maintain the disinfection process so as to keep the presence of disinfection by-products as low as possible without compromising the effectiveness of the disinfection; and
(b) verify the performance of the disinfection process.”.
(9) In regulation 33(6)(a)(ii) for regional health and social services trust substitute—“the Regional Agency for Public Health and Social Well-being (established by section 12 of the Health and Social Care (Reform) Act (Northern Ireland) 2009).”
(10) For Table 2 in Schedule 3 substitute the table in Schedule 1.
(11) For Table 3 in Schedule 3 substitute the table in Schedule 2.
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For Article 31(3)(b) of the 2006 Order substitute—“
(b) publish in such manner as the enforcement authority considers appropriate for the purpose of bringing the matters to which the notice relates to the attention of persons likely to be affected by them—
(i) a copy of the notice, and
(ii) where the enforcement authority is satisfied as mentioned in sub-paragraph (b) of paragraph (1) above, a summary of the undertaking describing the steps to be taken in it; and”
Sealed with the Official Seal of the Department for Regional Development on 29th March 2010
John Mills
A Senior Officer of the
Department for Regional Development

SCHEDULE 1
Regulation 9
“
TABLE 2
Note: This table sets out the annual sampling frequencies for all the substances and parameters in column 1. These are determined for each water supply zone according to its estimated population (column 2). The number of samples is either the standard number in column 4 or the reduced number in column 3 (if one is given). Regulation 9 provides for the circumstances in which the reduced number of samples may be taken.

(1)Substances and parameters subject to monitoring (2)Estimated populationof water supply zone (3)Reduced (4)Standard
Subject to check monitoring
E. coli < 100≥ 100  412 per 5,000 population
Coliform bacteria
Residual disinfectant
Aluminium <100100–4,9995,000–9,99910,000–29,99930,000–49,99950,000–79,99980,000–100,000 12612182638 241224365276
Ammonium
Clostridium perfringens (including spores)
Colony counts
Colour
Conductivity
Hydrogen ion
Iron
Manganese
Nitrate
Nitrite
Odour
Taste
Turbidity
Subject to audit monitoring
Aluminium <100100–4,9995,000–100,000  148
Antimony
Arsenic
Benzene
Benzo(a)pyrene
Boron
Bromate
Cadmium
Chromium
Clostridium perfringens (including spores)
Copper
Cyanide
1,2 dichloroethane
Enterococci
Fluoride
Iron
Lead
Manganese
Mercury
Nickel
Nitrate
Nitrite
Pesticides and relatedproducts
Polycyclic aromatic hydrocarbons
Selenium
Sodium
Trichloroethene/
Tetrachloroethene
Tetrachloromethane
Trihalomethanes
Chloride
Sulphate
Total organic carbon
Tritium
Gross alpha
Gross beta





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SCHEDULE 2
Regulation 8
“
Table 3
Note 1: Sampling is at treatment works for the substances and parameters shown in column (1) of the Table as items (1) to (6) and at supply points for the other substances and parameters, except nitrite subject to footnotes (ii) and (ii)(a) to the Table below.

Note 2: This table sets out the annual sampling frequencies for all the substances and parameters in column 2 at treatment works or supply points. The frequencies are determined according to the volume of water supplied at each treatment works or supply point (column 3). The number of samples is either the standard number in column 5 or the reduced number in column 4 (if one is given). Regulation 9 provides for the circumstances in which the reduced number of samples may be taken.

(1)Item (2)Substances and parameters (3)Volume of water supplied m3/d (4)Reduced (5)Standard
1. E. coli <2020–1,9992,000–5,9996,000–11,999≥12,000 -1252104104 452104208365
2. Coliform bacteria
3. Colony counts
4. Nitrite
5. Residual disinfectant
6. Turbidity
Subject to check monitoring
7. Clostridium perfringens <2020–9991,000–1,9992,000–5,9996,000–9,99910,000–15,99916,000–32,99933,000–49,99950,000–67,99968,000–84,99985,000–101,999102,000–119,999120,000–241,999242,000–484,999485,000–728,999 -2612182652781041301561833657301,095 24122436521041562082603123657301,4602,190
8. Conductivity
Subject to audit monitoring
9. Benzene <2020–9991,000–49,99950,000–89,99990,000–299,999300,000–649,999≥650,000  14812243648
10. Boron
11. Bromate
11A. ClostridiumPerfringens (including spores)
12. Cyanide
13. 1,2 dichloroethane
14. Fluoride
15. Mercury
16. Nitrite
17. Pesticides and related products
18. Trichloroethene/Tetrachloroethene
19. Tetrachloromethane
20. Chloride
21. Sulphate
22. Total organic carbon
23. Tritium
24. Gross alpha
25. Gross beta





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