12.—(1) No part of authorised development may be commenced within the 500m buffer zone for ponds known to support great crested newts, and shown on Figure 5.9.6 (Appendix 2A) of the ecological impact assessment report, until the relevant planning authority, in consultation with Natural England, has certified that the mitigation works described in paragraphs 5.5.8-5.5.18 of the ecological impact assessment report have been carried out to their reasonable satisfaction.
(2) The ecological management plan required under requirement 11 must include provision for a further site investigation in respect of white clawed crayfish prior to the commencement of any works in the vicinity of Scarfield Stream (culvert 11) and Shortwood Dingle Stream (culvert 13). If white clawed crayfish are found, then a scheme for mitigating impacts on them must be included in the ecological management plan.