paragraph (1) the reasons why the consultation responses have not been reflected in the submitted  details.  14. —(1) Development must not be commenced within the 1% plus 30% for climate change  flood extent of the Main Dyke, illustrated in Figure D8 of the Flood Risk Assessment (document  reference TR010035/APP/5.2–v1) until details of a temporary compensatory flood storage scheme  is submitted to and approved in writing by the Secretary of State. The scheme must include details  of the design, function, construction and, as appropriate, decommissioning of the temporary  compensatory flood storage area, to ensure that a suitably engineered solution is provided that will  not impede access to Main Dyke (Skippool Creek) for maintenance purposes and will allow for  the storage and subsequent drain down of flood waters that would be displaced by the  development.  (2) The scheme must be fully implemented as approved and subsequently maintained in  accordance with the approved details until it is decommissioned.  15.  —(1) No part of the authorised development is to commence until an agricultural land  classification and soil survey has been undertaken and a soil mitigation plan has been prepared and  has been submitted and approved in writing by the Secretary of State following consultation with  Natural England.  (2) The undertaker must implement the soil mitigation plan prepared under sub-paragraph (1)  during construction of the authorised development.  16. —(1) Where an application has been made to the Secretary of State for any consent,  agreement or approval required by a requirement (including consent, agreement or approval in  respect of part of a requirement) included in this Order, the Secretary of State must give notice to  the undertaker of the decision on the application within a period of 8 weeks beginning with—  (2) Subject to sub-paragraph (3), in the event that the Secretary of State does not determine an  application within the period set out in sub-paragraph (1), the Secretary of State is taken to have  granted all parts of the application (without any condition or qualification at the end of that  period).  (3) Where—  47 (c) the application is accompanied by a report from a body required to be consulted by the  undertaker under the requirement that considers it likely that the subject matter of the  application would give rise to any materially new or materially different environmental  effects in comparison with those reported in the environmental statement,  (b) the Secretary of State does not determine such application within the period set out in  sub-paragraph (1); and  (a) an application has been made to the Secretary of State for any consent, agreement or  approval required by a requirement included in this Order;  (a) the day immediately following that on which the application is received by the Secretary  of State;  (b) the day immediately following that on which further information has been supplied by the  undertaker under paragraph 17; or  (c) such longer period as may be agreed between the parties.  Temporary compensatory flood storage system  Soil survey and mitigation plan  PART 2  PROCEDURE FOR DISCHARGE OF REQUIREMENTS  Applications made under requirements 