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:Refers to a system that accepts all of the flow from a drainage area and conveys larger event flows through an overflow outlet.
:Refers to a system that accepts all of the flow from a drainage area and conveys larger event flows through an overflow outlet.
;I:P ratio
;I/P ratio
:The ratio of the catchment (impervious area) to the footprint area of the receiving BMP (pervious area).
:The ratio of the catchment (impervious area) to the footprint area of the receiving BMP (pervious area).