Private water supplies

Private water supplies - list of pollutants tested

Monitoring required for commercial and larger domestic supplies

 

When is it tested for?

Aluminium When used as a flocculant, or where the water originates from, or is influenced by, surface waters
Ammonium In all supplies
Clostridium perfringens (including spores) Where the water originates from, or is influenced by, surface waters
Coliform bacteria In all supplies
Colour In all supplies
Conductivity In all supplies
Escherichia coli (E. coli) In all supplies
Hydrogen ion concentration (pH) In all supplies
Iron When used as a flocculant, or where the water originates from, or is influenced by, surface waters
Manganese Where the water originates from, or is influenced by, surface waters
Nitrate Where chloramination is practised
Nitrite Where chloramination is practised
Odour In all supplies
Taste In all supplies
Turbidity In all supplies
Disinfectant residual Where disinfection treatment is practised

Monitoring required for smaller domestic properties

Conductivity In all supplies
Enterococci In all supplies
Escherichia coli (E. coli) In all supplies
Hydrogen ion concentration (pH) In all supplies
Turbidity In all supplies
Any other parameter from the commercial and larger domestic supplies list shown to be at risk of exceeding the relevant values as a result of a risk assessment In all supplies
Any other parameter that may be a risk to health identified as a result of a risk assessment In all supplies