Paragraph 40 Ground subsidence
No part of the authorised development comprised in Work No. 6 may commence, save for the permitted preliminary works, until a scheme for monitoring ground subsidence in and around the flood defences for the River Aire has been submitted to, and following consultation with the Environment Agency, approved by the relevant planning authority.
The scheme must set out—
the details of the work which is to be subject to monitoring;
the extent of land to be monitored;
the manner in which ground levels are to be monitored;
the duration of monitoring activities; and
the extent of ground subsidence which, if exceeded, will require the undertaker to submit a ground subsidence mitigation scheme for the Environment Agency's approval in accordance with sub-paragraph (3).
If the monitoring identifies that ground subsidence has exceeded the level described in sub-paragraph (2)(e), a scheme setting out mitigation measures in relation to the ground subsidence must be submitted as soon as is reasonably practicable to and, following consultation with the Environment Agency, approved by the relevant planning authority.
The mitigation scheme approved pursuant to sub-paragraph (3) must be implemented as approved unless otherwise agreed in writing with the relevant planning authority.