Duties of person laying pipes
46.—(1)  Any person who lays any pipe in the vicinity of another pipe shall, if one of the pipes is or is to be used to convey water for human consumption and the other pipe is or is to be used to convey water for any other purpose, or any other substance or thing, clearly mark the pipes such that they can be distinguished from each other.
(2)  A person who lays, repairs, modifies or replaces any pipe in the vicinity of another pipe shall, if one of the pipes is or is to be used to convey water for human consumption and the other pipe is or is to be used to convey water for any other purpose, or any other substance or thing, ensure that the pipes do not become connected or cross-connected to each other.
(3)  Any person who contravenes subsection (1) or (2) shall be guilty of an offence.