- Latest available (Revised) - English
- Latest available (Revised) - Welsh
- Point in Time (15/06/2018)
- Original (As made) - English
- Original (As made) - Welsh
Point in time view as at 15/06/2018.
There are currently no known outstanding effects for the The Water Supply (Water Quality) Regulations 2018, SCHEDULE 2.
Revised legislation carried on this site may not be fully up to date. At the current time any known changes or effects made by subsequent legislation have been applied to the text of the legislation you are viewing by the editorial team. Please see ‘Frequently Asked Questions’ for details regarding the timescales for which new effects are identified and recorded on this site.
Regulations 2, 6, 12, 15 and 19
1 The water should not be aggressive. | ||||
2 Where treatment to reduce the level of radionuclides in water intended for human consumption has been taken, monitoring must be carried out to ensure the continued efficacy of the treatment. | ||||
3 Remedial action may be taken by the Welsh Ministers on radiological protection grounds without further consideration and deemed to be justified where radon concentrates exceed 1,000 Bq/1. | ||||
4 If tritium concentration exceeds its parametric value, an investigation (which may include analysis) of the presence of artificial radionuclides is required. | ||||
5 May be monitored from samples of water leaving treatment works or other supply point, as no significant change during distribution. | ||||
Item Parameters | Specification | Concentration or Value (maximum unless otherwise stated) or State | Units of Measurement | Point of compliance |
1 | Ammonium | 0.50 | μgAl/l | Consumers' taps |
2 | Chloride 1 | 250 | mgCl/l | Supply point 5 |
3 | Clostridium perfringens (including spores) | 0 | Number/100 ml | Supply point 5 |
4 | Coliform bacteria | 0 | Number/100 ml | Consumers' taps |
5 | Colony counts | No abnormal change | Number/1 ml at 22°C | Consumers' taps, service reservoirs and treatment works |
6 | Conductivity 1 | 2500 | μS/cm at 20°C | Supply point 5 |
7 | Hydrogen ion | 9.5 | pHvalue | Consumers' taps |
6.5 (minimum) | ||||
8 | Indicative dose 2 | 0.10 | mSv | Supply point 5 |
(a) gross alpha | 0.1 | Bq/l | Supply point 5 | |
(b) gross beta | 1 | Bq/l | Supply point 5 | |
9 | Radon 3 | 100 | Bq/l | Supply point |
10 | Sulphate 1 | 250 | mgSO4/l | Supply point 5 |
11 | Total organic carbon (TOC) | No abnormal change | mgC/l | Supply point |
12 | Tritium (for radioactivity) 4 | 100 | Bq/l | Supply point |
13 | Turbidity | 1 | NTU | Treatment works |
Notes: |
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.
Point in Time: This becomes available after navigating to view revised legislation as it stood at a certain point in time via Advanced Features > Show Timeline of Changes or via a point in time advanced search.
Geographical Extent: Indicates the geographical area that this provision applies to. For further information see ‘Frequently Asked Questions’.
Show Timeline of Changes: See how this legislation has or could change over time. Turning this feature on will show extra navigation options to go to these specific points in time. Return to the latest available version by using the controls above in the What Version box.
Access essential accompanying documents and information for this legislation item from this tab. Dependent on the legislation item being viewed this may include:
This timeline shows the different points in time where a change occurred. The dates will coincide with the earliest date on which the change (e.g an insertion, a repeal or a substitution) that was applied came into force. The first date in the timeline will usually be the earliest date when the provision came into force. In some cases the first date is 01/02/1991 (or for Northern Ireland legislation 01/01/2006). This date is our basedate. No versions before this date are available. For further information see the Editorial Practice Guide and Glossary under Help.
Use this menu to access essential accompanying documents and information for this legislation item. Dependent on the legislation item being viewed this may include:
Click 'View More' or select 'More Resources' tab for additional information including: