- Y Diweddaraf sydd Ar Gael (Diwygiedig)
- Gwreiddiol (a wnaed Fel)
Dyma’r fersiwn wreiddiol (fel y’i gwnaed yn wreiddiol).
“Regulation 17
Regulations 2(1), 11, 12 and 16
1. Water satisfies the requirements of this Schedule if–
(a)the water does not contain–
(i)any micro organism (other than a parameter) or parasite; or
(ii)any property, element or substance (other than a parameter),
at a concentration or value which would constitute a potential danger to human health;
(b)the water does not contain any substance (whether or not a parameter) at a concentration or value which, in conjunction with any other property, element, substance or organism it contains (whether or not a parameter), would constitute a potential danger to human health;
(c)the water does not contain concentrations or values of any of the parameters listed in Tables A to D in Part II of this Schedule in excess of the prescribed concentrations or values; and
(c)in the case of water prepared from water which has been softened or disalinated, its hardness is not below a minimum concentration of 60mg Ca/l.
2. The concentrations or values of the parameters listed in Tables A to D in Part II of this Schedule shall be read in conjunction with the notes thereto.
Column 1 | Column 2 | Column 3 | Column 4 |
---|---|---|---|
Item | Parameters | Units of Measurement | Concentration or Value (maximum unless otherwise stated) |
NOTES
| |||
1. | Colour | mg/1 Pt/Co scale | 20 |
2. | Turbidity | NTU | 4 |
3. | Odour | Dilution number | 3 at 25°C |
4. | Taste | Dilution number | 3 at 25°C |
5. | Sulphate | mg So4/l | 250 |
6. | Sodium | mg Na/l | 200 |
7. | Nitrate | mg/N03/l | 50 (note 1) |
8. | Nitrite | mg NO2/l | 0.5 (note 1) |
9. | Aluminium | μg Al/l | 200 |
10. | Copper | mg Cu/l | 2 |
11. | Fluoride | mg F/l | 1.5 |
12. | Hydrogen ion concentration | pH units | 6.5 (minimum) 9.5 (maximum) |
13. | Tritium (for radioactivity) | Bq/l | 100 |
14. | Total indicative dose | mSv/year | 0.10 (note 2) |
15. | Manganese | μg Mn/l | 50 |
Column 1 | Column 2 | Column 3 | Column 4 |
---|---|---|---|
Item | Parameters | Units of Measurement | Maximum Concentration |
NOTES
| |||
1. | Arsenic | μg As/l | 10 |
2. | Cadmium | μg Cd/l | 5 |
3. | Cyanide | μg Cn/l | 50 |
4. | Chromium | μg Cr/l | 50 |
5. | Mercury | μg Hg/l | 1 |
6. | Nickel | μg Ni/l | 20 |
7. | Selenium | μg Se/l | 10 |
8. | Antimony | μg Sb/l | 5 |
9. | Lead | μg Pb/l | 10 |
10. | Pesticides and related products: | ||
(a)individual substances | μg/l | 0.10 (notes 1 and 2) | |
(b)total substances | μg/l | 0.50 (notes 1 and 3) | |
11. | Polycyclic aromatic hydrocarbons | μg/l | 0.1 sum of concentrations of specified compounds (note 4) |
12. | Bromate | μg Br03/l | 10 |
Column 1 | Column 2 | Column 3 | Column 4 |
---|---|---|---|
Item | Parameters | Units of Measurement | Maximum Concentration |
NOTES
| |||
1. | Escherichia coli (E.coli) | number/250 ml | 0/250 ml |
2. | Enterococci | number/250 ml | 0/250 ml |
3. | Colony count 22°C | number/ml | 100 ml (notes 1 and 2) |
4. | Colony count 37°C | number/ml | 20 ml (notes 1 and 3) |
5. | Pseudomonas aeruginosa | number/250 ml | 0/250 ml |
Column 1 | Column 2 | Column 3 | Column 4 |
---|---|---|---|
Item | Parameters | Units of Measurement | Maximum Concentration |
NOTES
| |||
1. | Boron | mg B/l | 1.0 |
2. | Benzo (a) pyrene | μg/l | 0.010 |
3. | Tetrachloroethene and Trichloroethene | μg/l | 10 (note 1) |
4. | Tetrachloromethane | μg/l | 3 |
5. | Benzene | μg/l | 1.0 |
6. | 1,2 dichloroethane | μg/l | 3.0 |
7. | Trichloromethane, Dichlorobromomethane, Dibromochloromethane and Tribromomethane | μg/l | 100 (note 1) |
8. | Epichlorohydrin | μg/l | 0.10 (note 2) |
9. | Vinyl chloride | μg/l | 0.50 (note 2) |
10. | Acrylamide | μg/l | 0.10 (note 2) |
Y Diweddaraf sydd Ar Gael (diwygiedig):Y fersiwn ddiweddaraf sydd ar gael o’r ddeddfwriaeth yn cynnwys newidiadau a wnaed gan ddeddfwriaeth ddilynol ac wedi eu gweithredu gan ein tîm golygyddol. Gellir gweld y newidiadau nad ydym wedi eu gweithredu i’r testun eto yn yr ardal ‘Newidiadau i Ddeddfwriaeth’.
Gwreiddiol (Fel y’i Deddfwyd neu y’i Gwnaed): Mae'r wreiddiol fersiwn y ddeddfwriaeth fel ag yr oedd pan gafodd ei deddfu neu eu gwneud. Ni wnaed unrhyw newidiadau i’r testun.
Gallwch wneud defnydd o ddogfennau atodol hanfodol a gwybodaeth ar gyfer yr eitem ddeddfwriaeth o’r tab hwn. Yn ddibynnol ar yr eitem ddeddfwriaeth sydd i’w gweld, gallai hyn gynnwys:
Defnyddiwch y ddewislen hon i agor dogfennau hanfodol sy’n cyd-fynd â’r ddeddfwriaeth a gwybodaeth am yr eitem hon o ddeddfwriaeth. Gan ddibynnu ar yr eitem o ddeddfwriaeth sy’n cael ei gweld gall hyn gynnwys:
liciwch ‘Gweld Mwy’ neu ddewis ‘Rhagor o Adnoddau’ am wybodaeth ychwanegol gan gynnwys