Paragraph 1 SamplingI1
England and Wales
(1)
A local authority must undertake monitoring for Group A parameters in accordance with this Part.
(2)
“Monitoring for Group A parameters” means sampling for each parameter listed in column 1 of Table 1 in the circumstances listed in the corresponding entry for that parameter in column 2 of that Table, in order to—
(a)
determine whether or not water complies with the concentrations or values in Schedule 1;
(b)
provide information on the organoleptic and microbiological quality of the water; and
(c)
establish the effectiveness of the treatment of the water, including disinfection.
Table 1
Group A parameters
Parameter | Circumstances |
|---|---|
| Aluminium | If used as a water treatment chemical |
| Ammonium | If chloramination is used |
| Clostridium perfringens (including spores) | Where the water originates from, or is influenced by, surface waters |
| Coliform bacteria | In all supplies |
| Colony counts | In all supplies |
| Colour | In all supplies |
| Conductivity | In all supplies |
| Escherichia coli (E. coli) | In all supplies |
| Hydrogen ion concentration | In all supplies |
| Iron | If used as a water treatment chemical |
| Manganese | Where the water originates from, or is influenced by, surface waters |
| Nitrate | If chloramination is used |
| Nitrite | If chloramination is used |
| Odour | In all supplies |
| Pseudomonas aeruginosa | Only in the case of water in bottles or containers |
| Taste | In all supplies |
| Turbidity | In all supplies |
Annotations
Commencement
- I1
Sch. 2 para. 1 in force at 20.11.2017, see reg. 1