The Council may use any watercourse or any public sewer or drain for the drainage of water in connection with the construction or maintenance of the authorised works and for that purpose may on any land within the limits of land to be acquired lay down, take up and alter pipes and make openings into, and connections with, the watercourse, sewer or drain.

The Council shall not discharge any water into any watercourse, public sewer or drain except with the consent of the authority to which it belongs; and such consent may be given subject to such terms and conditions as the authority may reasonably impose but shall not be unreasonably withheld.

The Council shall not make any opening into any public sewer or drain except in accordance with plans approved by, and under the superintendence (if provided) of, the authority to which the sewer or drain belongs, but such approval shall not be unreasonably withheld.

The Council shall take such steps as are reasonably practicable to secure that any water discharged under the powers conferred by this article is as free as may be practicable from gravel, soil or other solid substance or oil or matter in suspension.

This article does not authorise the entry into controlled waters of any matter whose entry or discharge into controlled waters is prohibited by section 85(1), (2) or (3) of the Water Resources Act 19919.