- Latest available (Revised)
- Original (As made) - English
- Original (As made) - Welsh
The Water Supply (Water Quality) Regulations 2010
You are here:
- 2010 No. 994 (W. 99)
- SCHEDULE 4
- Table A2
What Version
Status:
This is the original version (as it was originally made). Wales Statutory Instruments are not carried in their revised form on this site.
Table A2Parameters for which, Subject to Regulation 16(7), Methods of Analysis are Prescribed
| (1) | (2) | (3) | (4) |
|---|---|---|---|
| Parameters | Trueness % of prescribed concentration or value or specification | Precision % of prescribed concentration or value or specification | Limit of detection % of prescribed concentration or value or specification |
| Notes: | |||
a The method of analysis should determine total cyanide in all forms. | |||
b The performance characteristics apply to each individual pesticide and will depend on the pesticide concerned. | |||
c The performance characteristics apply to the individual substances specified at 25% of the parametric value in Part I of Table B in Schedule 1. | |||
d The performance characteristics apply to the individual substances specified at 50% of the parametric value in Part I of Table B in Schedule 1. | |||
e The performance characteristics apply to the prescribed value of 4NTU. | |||
f The performance characteristics apply to the specification of 1NTU for water leaving treatment works. | |||
| Aluminium | 10 | 10 | 10 |
| Ammonium | 10 | 10 | 10 |
| Antimony | 25 | 25 | 25 |
| Arsenic | 10 | 10 | 10 |
| Benzene | 25 | 25 | 25 |
| Benzo(a)pyrene | 25 | 25 | 25 |
| Boron | 10 | 10 | 10 |
| Bromate | 25 | 25 | 25 |
| Cadmium | 10 | 10 | 10 |
| Chloride | 10 | 10 | 10 |
| Chromium | 10 | 10 | 10 |
| Colour | 10 | 10 | 10 |
| Conductivity | 10 | 10 | 10 |
| Copper | 10 | 10 | 10 |
| Cyanide a | 10 | 10 | 10 |
| 1,2-dichloroethane | 25 | 25 | 10 |
| Fluoride | 10 | 10 | 10 |
| Iron | 10 | 10 | 10 |
| Lead | 10 | 10 | 10 |
| Manganese | 10 | 10 | 10 |
| Mercury | 20 | 10 | 20 |
| Nickel | 10 | 10 | 10 |
| Nitrate | 10 | 10 | 10 |
| Nitrite | 10 | 10 | 10 |
| Pesticides and related products b | 25 | 25 | 25 |
| Polycyclic aromatic hydrocarbons c | 25 | 25 | 25 |
| Selenium | 10 | 10 | 10 |
| Sodium | 10 | 10 | 10 |
| Sulphate | 10 | 10 | 10 |
| Tetrachloromethane | 20 | 20 | 20 |
| Trichloroethene d | 25 | 25 | 10 |
| Trihalomethanes: Total c | 25 | 25 | 10 |
| Turbidity e | 10 | 10 | 10 |
| Turbidity f | 25 | 25 | 25 |
Options/Help
Print Options
Print The Whole Instrument
Print The Whole Schedule
Print This Part only
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. The revised version is currently only available in English.
Original (As Enacted or Made) - English:The original English language version of the legislation as it stood when it was enacted or made. No changes have been applied to the text.
Original (As Enacted or Made) - Welsh:The original Welsh language version of the legislation as it stood when it was enacted or made. No changes have been applied to the text.
Opening Options
Different options to open legislation in order to view more content on screen at once
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
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