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Conditions or Reasons for Planning Application - CB/26/00475/DOC
Conditions or Reasons:
26) No development shall commence (excluding the Sports Hall) until a final detailed design of the surface water drainage scheme, to manage surface water runoff from the development for up to and including the 1 in 100-year event (+40%CC), has been submitted to and approved in writing by the Local Planning Authority. The approved drainage works shall be completed prior to the completion or occupation of the approved classroom block on site whichever is the sooner. The final detailed design shall be based on the agreed '119330 - Woburn Sands - Fulbrook MS - Flood Risk Assessment-3.0' and DEFRAs Non-statutory technical standards for sustainable drainage systems (March, 2018), and shall be subsequently implemented and maintained as approved.
The detailed drainage to be provided shall include, at a minimum:
Where infiltration such as infiltration trenches and soakaways forms part of the drainage system, the results of soakage tests (carried out in accordance with BRE digest 365/CIRIA 156).
Total required volume of attenuation (m3) for the new impermeable areas and total volume of attenuation being provided (m3)

Reason: To ensure the approved system will function to a satisfactory minimum standard of operation and maintenance and prevent the increased risk of flooding both on and off site, in accordance with CBC Local policy CC3 to CC5 and NPPF Paras 159 to 169 Inclusive of foot notes 54 to 56 and its supporting technical guidance.


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