Part 2Provisions relating to supply of drinking water
Duties of drinking water suppliers
21Duty to supply safe drinking water
A drinking water supplier must ensure that the drinking water supplied by the supplier is safe.
If there is a reasonable likelihood that a supplier’s drinking water is or may be unsafe, the supplier must—
- take immediate action to ensure that public health is protected; and
- notify the Water Services Authority that the drinking water is or may be unsafe; and
- investigate the source or cause of the problem; and
- take remedial action to rectify the problem; and
- identify and implement measures required to ensure that the problem does not reoccur; and
- take all practicable steps, to the satisfaction of the Water Services Authority, to advise affected consumers and drinking water suppliers that drinking water is or may be unsafe and what measures should be taken to protect public health (for example, boiling).
The duty under subsection (1) does not apply beyond the point of supply.
Notes
- Section 21(2)(b): amended, on , by section 111(2) of the Local Government (Water Services) (Repeals and Amendments) Act 2025 (2025 No 43).
- Section 21(2)(f): amended, on , by section 111(2) of the Local Government (Water Services) (Repeals and Amendments) Act 2025 (2025 No 43).


