SCHEDULE 3 Monitoring for Group A and Group B Parameters

Part 1 Monitoring for Group A parameters

1 Sampling
(1) The Department must monitor for a Group A parameter in accordance with this Part.
(2) “Monitoring for a Group A parameter” means sampling for—
(a) each parameter listed in column 1 of Table 1 of this Schedule in the circumstances listed in the entry which corresponds with that parameter in column 2 of Table 1 of this Schedule; and
(b) any other parameter which may be identified as relevant by the Department in the monitoring programme.

TABLE 1 Group A parameters
(1) Parameter	(2) Circumstances
Aluminium	If used as water treatment chemicals or where the water originates from, or is influenced by, surface waters
Ammonium	Where chloramination is practised
Coliform bacteria	In all supplies
Colony Counts	In all supplies
Colour	In all supplies
Conductivity	In all supplies
Disinfectant residual	When disinfection treatment is practised
Escherichia coli (E. coli)	In all supplies
Indicative Dose	Where there is treatment in place to reduce the level of radionuclides in water intended for human consumption.
Iron	If used as water treatment chemicals or where the water originates from, or is influenced by, surface waters
Manganese	Where the water originates from, or is influenced by, surface waters
Nitrite	Where chloramination is practised
Odour	In all supplies
pH (Hydrogen ion)	In all supplies
Radon	Where there is treatment in place to reduce the level of radionuclides in water intended for human consumption.
Taste	In all supplies
Tritium	Where there is treatment in place to reduce the level of radionuclides in water intended for human consumption.
Turbidity	In all supplies
(1) A supply which consists of both groundwater and surface water shall be deemed to be a supply which consists only of surface water.	