Water Resources Act 1991

5 (1) The Authority may make such byelaws in relation to any particular locality or localities as it considers necessary for securing the efficient working of any drainage system including the proper defence of any land against sea or tidal water.

(2) Without prejudice to the generality of sub-paragraph (1) above and subject to sub-paragraph (3) below, the Authority may, in particular, make byelaws for any of the following purposes, that is to say—

(a) regulating the use and preventing the improper use of any watercourses, banks or works vested in the Authority or under its control or for preserving any such watercourses, banks or works from damage or destruction;

(b) regulating the opening of sluices and flood gates in connection with any such works as are mentioned in paragraph (a) above;

(c) preventing the obstruction of any watercourse vested in the Authority or under its control by the discharge into it of any liquid or solid matter or by reason of any such matter being allowed to flow or fall into it;

(d) compelling the persons having control of any watercourse vested in the Authority or under its control, or of any watercourse flowing into any such watercourse, to cut the vegetable growths in or on the bank of the watercourse and, when cut, to remove them.

(3) No byelaw for any purpose specified in sub-paragraph (2)(a) above shall be valid if it would prevent reasonable facilities being afforded for enabling a watercourse to be used by stock for drinking purposes.

(4) Notwithstanding anything in this Act, no byelaw made by the Authority under this paragraph shall conflict with or interfere with the operation of any byelaw made by a navigation authority, harbour authority or conservancy authority.

(5) In this paragraph “banks” and “watercourse” have the same meanings as in Part IV of this Act.