s 100 Meaning of “drainage” in certain enactments.
(1) In the definition of “ drainage ” in section 113(1) of the Water Resources Act 1991, after paragraph (c) there shall be added the words and (d) the carrying on, for any purpose, of any other practice which involves management of the level of water in a watercourse; (2) For the definition of “ drainage ” in section 72(1) of the Land Drainage Act 1991 there shall be substituted— “ drainage ” includes— defence against water (including sea water); irrigation, other than spray irrigation; warping; and the carrying on, for any purpose, of any other practice which involves management of the level of water in a watercourse;