SCHEDULE 1PRESCRIBED CONCENTRATIONS AND VALUES
(1)Item | (2)Parameter | (3)Concentration orvalue (maximum) | (4)Units ofmeasurement | (5)Point ofcompliance |
|---|---|---|---|---|
Part 1 | ||||
1. | Enterococci | 0 | Number/100ml | Consumer's tap |
2. | Escherichia coli | 0 | Number/100ml | Consumer's tap |
Part 21 | ||||
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— | ||||
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 orvalue (maximum) | (4)Units ofmeasurement | (5)Point ofcompliance |
|---|---|---|---|---|
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— | ||||
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 orvalue (maximum)or state | (4)Units ofmeasurement | (5)Point ofmonitoring |
|---|---|---|---|---|
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 | mSvF1... | Supply point2 |
F2 14A. | Radon5 | 100 | Bq/l | Supply point(b) |
15. | Tritium F3(f) | 100 | Bq/l | Supply point2 |
Notes— | ||||
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. | ||||
F45 Remedial action is to be deemed justified on radiological protection grounds, without further consideration, where radon concentrations exceed 1,000 Bq/l. | ||||
F46 If the concentration of tritium exceeds this value, an analysis of the presence of other artificial radionuclides must be also carried out by Scottish Water. | ||||
In this Schedule—
F5...
“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.