Pre-development drainage peak flow rates definition
Pre-development drainage peak flow rates means the estimated rates at which stormwater and other runoff flowed on the site assuming the site was covered in grassland vegetation, as estimated in the Drainage Concept Plan, with the exception that for drainage Basins 5 and 9 only, it means the estimated rates at which stormwater flowed on the site prior to certification of this CLRDP, as estimated in the Drainage Concept Plan.