14.—(1) Each part of the authorised development must not commence until a written scheme for the mitigation of flood risk during the construction and operation of that part has been submitted to and, after consultation with the Environment Agency, approved by the planning authority.
(2) Each scheme submitted and approved must be in accordance with the principles and strategy set out in Appendix 12A to the environmental statement.
(3) Each approved scheme must be maintained throughout the construction and operation of the relevant part of the authorised development.