1. Each monitoring programme must—
(a)verify that—
(i)the measures in place to control risks to human health throughout the water supply chain (from the catchment area through abstraction, treatment and storage to distribution) are working effectively; and
(ii)water at the point of compliance meets the water quality standards;
(b)provide information on the quality of water supplied to demonstrate that—
(i)the water quality standards are being met; and
(ii)the parametric values in Table C are not being exceeded; and
(c)identify the most appropriate means of mitigating the risks to human health.
2.—(1) Each monitoring programme must fulfil the requirements of Part B of this schedule (and, where applicable, Part C of this schedule) by means of—
(a)the collection and analysis of the quality of discrete water samples; or
(b)measurements of the quality of water recorded by a continuous monitoring process.
(2) In addition, monitoring programmes may consist of—
(a)inspections of records of the functionality and maintenance status of equipment; and
(b)inspections of the catchment area, water abstraction, treatment, storage and distribution infrastructure.
3. An enforcing authority must ensure that each monitoring programme prepared by it is reviewed on a continuous basis, and updated or reconfirmed at least every 5 years.