5.—(1) In this Part, “audit monitoring” means monitoring for the purpose of obtaining information from which it may be established–
(a)as regards the parameters listed in Tables A and B in Schedule 1, whether water supplied for regulation 4(1) purposes satisfies the provisions of Part III of these Regulations or, if a departure has been authorised under Part VI in relation to that supply, those provisions as read with the terms of that departure; and
(b)as regards indicator parameters in Schedule 2, whether water supplied for regulation 4(1) purposes meets the specifications for those parameters.
(2) In this Part, “check monitoring” means monitoring for the purpose of obtaining information at regular intervals–
(a)as to the organoleptic and microbiological quality of water; and
(b)where relevant, as to the effectiveness of drinking-water treatment (particularly of disinfection),
for the purpose of determining–
(i)as regards the parameters listed in Tables A and B in Schedule 1, whether water supplied for regulation 4(1) purposes satisfies the provisions of Part III of these Regulations or, if a departure has been authorised under Part VI in relation to that supply, those provisions as read with the terms of that departure; and
(ii)as regards indicator parameters listed in Schedule 2, whether water supplied for regulation 4(1) purposes meets the specifications for those parameters.
(3) This Part applies to water supplied for regulation 4(1) purposes by a water authority in the performance of its duties under Part VI A of the Act.