Search Legislation

The Water Supply (Water Quality) (Amendment) Regulations (Northern Ireland) 2010

What Version

 Help about what version
  • Latest available (Revised)
  • Original (As made)

Status:

This is the original version (as it was originally made). This item of legislation is currently only available in its original format.

Regulation 9

SCHEDULE 1Table 2 in Schedule 3 of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007

This schedule has no associated Explanatory Memorandum

TABLE 2Annual Sampling Frequencies: Water Supply Zones

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 population

of water supply zone

(3)

Reduced

(4)

Standard

(*)

Sampling for these parameters may be within water supply zones or at supply points as specified in Table 3, subject to notes (ii) and (iii) below.

(i)

Where the population is not an exact multiple of 5,000, the population figure should be rounded up to the nearest multiple of 5,000.

(ii)

Check monitoring in water supply zones is required only where chloramination is practised. In other circumstances audit monitoring is required.

(iii)

Audit monitoring in water supply zones is required only where sodium hypochlorite is added after water has left the treatment works. In other circumstances, audit monitoring is required at supply points.

(iv)

To monitor for total indicative dose (for radioactivity).

Subject to check monitoring
E. coli

< 100

≥ 100

4

12 per 5,000 population(i)

Coliform bacteria
Residual disinfectant
Aluminium

<100

100–4,999

5,000–9,999

10,000–29,999

30,000–49,999

50,000–79,999

80,000–100,000

1

2

6

12

18

26

38

2

4

12

24

36

52

76

Ammonium
Clostridium perfringens (including spores)(*)
Colony counts
Colour
Conductivity(*)
Hydrogen ion
Iron
Manganese
Nitrate(ii)
Nitrite(ii)
Odour
Taste
Turbidity
Subject to audit monitoring
Aluminium

<100

100–4,999

5,000–100,000

1

4

8

Antimony
Arsenic
Benzene(*)
Benzo(a)pyrene
Boron(*)
Bromate(iii)
Cadmium
Chromium
Clostridium perfringens (including spores)
Copper
Cyanide(*)
1,2 dichloroethane(*)
Enterococci
Fluoride(*)
Iron
Lead
Manganese
Mercury(*)
Nickel
Nitrate(ii)
Nitrite(ii)

Pesticides and related

products(*)

Polycyclic aromatic hydrocarbons
Selenium
Sodium
Trichloroethene/
Tetrachloroethene(*)
Tetrachloromethane(*)
Trihalomethanes
Chloride(*)
Sulphate(*)
Total organic carbon(*)
Tritium(*)
Gross alpha(*) (iv)
Gross beta(*) (iv)

Back to top

Options/Help

Print Options

Close

Legislation is available in different versions:

Latest Available (revised):The latest available updated version of the legislation incorporating changes made by subsequent legislation and applied by our editorial team. Changes we have not yet applied to the text, can be found in the ‘Changes to Legislation’ area.

Original (As Enacted or Made):The original version of the legislation as it stood when it was enacted or made. No changes have been applied to the text.

Close

Opening Options

Different options to open legislation in order to view more content on screen at once

Close

Explanatory Memorandum

Explanatory Memorandum sets out a brief statement of the purpose of a Statutory Rule and provides information about its policy objective and policy implications. They aim to make the Statutory Rule accessible to readers who are not legally qualified and accompany any Northern Ireland Statutory Rule or Draft Northern Ireland Statutory Rule laid before the UK Parliament during the suspension of the Northern Ireland Assembly.

Close

More Resources

Access essential accompanying documents and information for this legislation item from this tab. Dependent on the legislation item being viewed this may include:

  • the original print PDF of the as enacted version that was used for the print copy
  • lists of changes made by and/or affecting this legislation item
  • confers power and blanket amendment details
  • all formats of all associated documents
  • correction slips
  • links to related legislation and further information resources
Close

More Resources

Use this menu to access essential accompanying documents and information for this legislation item. Dependent on the legislation item being viewed this may include:

  • the original print PDF of the as made version that was used for the print copy
  • correction slips

Click 'View More' or select 'More Resources' tab for additional information including:

  • lists of changes made by and/or affecting this legislation item
  • confers power and blanket amendment details
  • all formats of all associated documents
  • links to related legislation and further information resources