Regulation 7 Monitoring: Group A and Group B monitoring
In this Part, “monitoring of a Group A parameter” (Group A monitoring) means monitoring for the purpose of obtaining information at regular intervals—
as to the organoleptic and microbiological quality of water;
as to the effectiveness of drinking-water treatment (particularly of disinfection) where it is used;
as regards indicator parameters, whether water supplied for regulation 5(1) purposes meets the specifications for those parameters; and
in respect of certain other parameters which may be identified as relevant by a water undertaker in the monitoring programme.
The purpose of monitoring of a Group A parameter is to determine whether the presence of such a parameter in water supplied for regulation 5(1) purposes satisfies the provisions of Part 3 of these Regulations or, if a departure has been authorised under Part 8 in relation to that supply, those provisions as read with the terms of that departure.
In this Part, “monitoring of a Group B parameter” (Group B monitoring) means monitoring each parameter listed in Schedule 1 (other than a parameter being monitored under Group A monitoring) for the purpose of obtaining information from which it may be established—
whether water supplied for the purposes of regulation 5(1) satisfied the provisions of Part 3 of these Regulations or, if a departure has been authorised under Part 8 in relation to that supply, those provisions as read with the terms of that departure; and
as regards indicator parameters, whether water supplied for regulation 5(1) purposes meets the specifications for those parameters.