Regulation 2(1) and (4)
SCHEDULE 1SPRESCRIBED CONCENTRATIONS AND VALUES
TABLE A
MICROBIOLOGICAL PARAMETERS
1 The parametric values in Part 2 are not required to protect human health (since the parametric values in Part 1 are sufficient for that purpose). The values in Part 2 are not therefore set for the purposes of Article 5(3) of the Directive. | ||||
2 Compliance required as to 95% of samples from each service reservoir (regulation 4(4)). | ||||
| (1) Item | (2) Parameter | (3) Concentration or value (maximum) | (4) Units of measurement | (5) Point of compliance |
|---|---|---|---|---|
| Part 1 | ||||
| 1. | Enterococci | 0 | Number/100ml | Consumer's tap |
| 2. | Escherichia coli | 0 | Number/100ml | Consumer's tap |
| Part 2 1 | ||||
| 3. | Coliform bacteria | 0 | Number/100ml | Service reservoir2 |
| 0 | Number/100ml | Treatment works | ||
| 4. | Escherichia coli | 0 | Number/100ml | Service reservoir |
| 0 | Number/100ml | Treatment works | ||
| Notes— | ||||
TABLE B
CHEMICAL PARAMETERS
1 The parametric value refers to the residual monomer concentration in the water as calculated according to specifications of the maximum release from the corresponding polymer in contact with the water. This is controlled by product specification. | ||||
2 See also regulation 6(6). | ||||
3 See also regulation 4(2)(c). | ||||
4 The corresponding parametric value applies to each ‘other pesticide’ individually. | ||||
5 The parametric values in this Part are not required to protect human health (since the parametric values in Part 1 are sufficient for that purpose). The values in Part 2 are not therefore set for the purposes of Article 5(3) of the Directive. | ||||
| (1) Item | (2) Parameter | (3) Concentration or value (maximum) | (4) Units of measurement | (5) Point of compliance |
|---|---|---|---|---|
| Part 1 | ||||
| 1. | Acrylamide1 | 0.10 | μg/l | Consumer's tap |
| 2. | Antimony | 5.0 | μgSb/l | Consumer's tap |
| 3. | Arsenic | 10 | μgAs/l | Consumer's tap |
| 4. | Benzene | 1.0 | μg/l | Consumer's tap |
| 5. | Benzo(a)pyrene | 0.010 | μg/l | Consumer's tap |
| 6. | Boron | 1.0 | mgB/l | Consumer's tap |
| 7. | Bromate | 10 | μgBrO3/l | Consumer's tap |
| 8. | Cadmium | 5.0 | μgCd/l | Consumer's tap |
| 9. | Chromium | 50 | μgCr/l | Consumer's tap |
| 10. | Copper2 | 2.0 | mgCu/l | Consumer's tap |
| 11. | Cyanide | 50 | μgCN/l | Consumer's tap |
| 12. | 1,2-dichloroethane | 3.0 | μg/l | Consumer's tap |
| 13. | Epichlorohydrin1 | 0.10 | μg/l | Consumer's tap |
| 14. | Fluoride | 1.5 | mgF/l | Consumer's tap |
| 15. | Lead2 | 10 | μgPb/l | Consumer's tap |
| 16. | Mercury | 1.0 | μgHg/l | Consumer's tap |
| 17. | Nickel2 | 20 | μgNi/l | Consumer's tap |
| 18. | Nitrate3 | 50 | mgNO3/l | Consumer's tap |
| 19. | Nitrite3 | 0.50 | mgNO2/l | Consumer's tap |
| 0.10 | mgNO2/l | Treatment works | ||
| 20. | Pesticide— | |||
| Aldrin | 0.030 | μg/l | Consumer's tap | |
| Dieldrin | 0.030 | μg/l | Consumer's tap | |
| Heptachlor | 0.030 | μg/l | Consumer's tap | |
| Heptachlor epoxide | 0.030 | μg/l | Consumer's tap | |
| Other pesticide4 | 0.10 | μg/l | Consumer's tap | |
| 21. | Pesticides: Total | 0.50 | μg/l | Consumer's tap |
| 22. | PAH: Total | 0.10 | μg/l | Consumer's tap |
| 23. | Selenium | 10 | μgSe/l | Consumer's tap |
| 24. | Tetrachloroethene and Trichloroethene | 10 | μg/l | Consumer's tap |
| 25. | THM: Total | 100 | μg/l | Consumer's tap |
| 26. | Vinyl chloride1 | 0.50 | μg/l | Consumer's tap |
| Part 25 | ||||
| 27. | Aluminium | 200 | μgAl/l | Consumer's tap |
| 28. | Colour | 20 | mg/l Pt/Co | Consumer's tap |
| 29. | Iron | 200 | μgFe/l | Consumer's tap |
| 30. | Manganese | 50 | μgMn/l | Consumer's tap |
| 31. | Sodium | 200 | mgNa/l | Consumer's tap |
| 32. | Tetrachloromethane | 3 | μg/l | Consumer's tap |
| 33. | Turbidity | 4 | NTU | Consumer's tap |
| Notes— | ||||
TABLE C
INDICATOR PARAMETERS
1 The water should not be aggressive. | ||||
2 In the event that the use of samples from a point within a water supply zone has not been authorised for this parameter under regulation 8, the point of monitoring is instead the consumer's tap. | ||||
3 This value, in so far as the point of monitoring is a service reservoir, is not set for the purposes of Article 5(3) of the Directive. | ||||
4 This value, in so far as the point of monitoring is a treatment works, is not set for the purposes of Article 5(3) of the Directive. | ||||
| (1) Item | (2) Parameter | (3) Concentration or value (maximum) or state | (4) Units of measurement | (5) Point of monitoring |
|---|---|---|---|---|
| Part 1 | ||||
| 1. | Ammonium | 0.50 | mgNH4/l | Consumer's tap |
| 2. | Chloride1 | 250 | mgCl/l | Supply point2 |
| 3. | Clostridium perfringens (including spores) | 0 | Number/100ml | Supply point2 |
| 4. | Coliform bacteria | 0 | Number/100ml | Consumer's tap |
| 5. | Colony count | No abnormal change | Number/1ml at 22°C and at 37°C | Consumer's tap |
| Service reservoir3 | ||||
| Treatment works4 | ||||
| 6. | Colour | Acceptable to consumers and no abnormal change | Consumer's tap | |
| 7. | Conductivity1 | 2500 | μS/cm at 20°C | Supply point2 |
| 8. | Hydrogen ion | 9.5 | pH value | Consumer's tap |
| 6.5 (minimum) | ||||
| 9. | Odour | Acceptable to consumers and no abnormal change | Consumer's tap | |
| 10. | Sulphate1 | 250 | mgSO4/l | Supply point2 |
| 11. | Taste | Acceptable to consumers and no abnormal change | Consumer's tap | |
| 12. | Total organic carbon | No abnormal change | mgC/l | Supply point2 |
| 13. | Turbidity | 1 | NTU | Treatment works |
| Part 2 | ||||
| 14. | Indicative dose | 0.10 | mSv/year | Supply point2 |
| 15. | Tritium | 100 | Bq/l | Supply point2 |
| Notes— | ||||
In this Schedule—
“Indicative dose” means the committed effective dose for one year of ingestion resulting from all the radionuclides (whose presence has been detected in water supplied for human consumption purposes) of natural and artificial origin, but excluding tritium, potassium-40, radon and radon decay products;
“NTU” means Nephelometric Turbidity Unit;
“PAH: Total” means the sum of the concentrations of the following polyaromatic hydrocarbons: benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(ghi)perylene and indeno(1,2,3-cd)pyrene;
“Pesticide” means an organic insecticide, herbicide, fungicide, nematocide, acaricide, algicide, rodenticide, slimicide, molluscicide or related product (including a growth regulator), and includes the relevant metabolites, degradation and reaction products of that pesticide;
“Pesticides: Total” refers to the sum of the concentrations of each pesticide detected and quantified in the monitoring procedure;
“Tetrachloroethene and Trichloroethene” means the sum of the concentrations of tetrachloroethene and trichloroethene; and
“THM: Total” means the sum of the concentrations of the following trihalomethanes: chloroform, bromoform, dibromochloromethane and bromodichloromethane.