Updated guide on rainfall runoff management for developments.
Ref: LIT 8866 ZIP, 5.97MB
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This updated guide advises regulators, developers and local authorities on the requirements for storm water drainage design for new developments, based on the current Defra/Environment Agency position on storm water management and discharge control for developments. The guidance draws on advancing scientific understanding that will enable non-drainage experts to obtain a quick assessment of the principal drainage requirements needed for a proposed development.