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The Private Water Supplies (Wales) Regulations 2017

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Dyma’r fersiwn wreiddiol (fel y’i gwnaed yn wreiddiol).

Sampling

1.—(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

AluminiumIf used as a water treatment chemical
AmmoniumIf chloramination is used
Clostridium perfringens (including spores)Where the water originates from, or is influenced by, surface waters
Coliform bacteriaIn all supplies
Colony countsIn all supplies
ColourIn all supplies
ConductivityIn all supplies
Escherichia coli (E. coli)In all supplies
Hydrogen ion concentrationIn all supplies
IronIf used as a water treatment chemical
ManganeseWhere the water originates from, or is influenced by, surface waters
NitrateIf chloramination is used
NitriteIf chloramination is used
OdourIn all supplies
Pseudomonas aeruginosaOnly in the case of water in bottles or containers
TasteIn all supplies
TurbidityIn all supplies

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