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→Size a bioretention cell for constrained ground area
{{Plainlist|1= Where:
{{Plainlist|1= Where:
*''R'' = Ratio of catchment impervious area to practice pervious footprint area
*''R'' = Ratio of catchment impervious area to practice pervious footprint area, also referred to as 'I/P ratio'
*''A<sub>p</sub>'' = Practice pervious footprint area in m<sup>2</sup>
*''A<sub>p</sub>'' = Practice pervious footprint area in m<sup>2</sup>
*''A<sub>i</sub>'' = Catchment impervious area in m<sup>2</sup>}}
*''A<sub>i</sub>'' = Catchment impervious area in m<sup>2</sup>}}