Line 3:
Line 3:
;A<sub>p</sub> :Area of the practice e.g. footprint area of a bioretention cell (usually in m<sup>2</sup>)
;A<sub>p</sub> :Area of the practice e.g. footprint area of a bioretention cell (usually in m<sup>2</sup>)
;d :Depth e.g. of an infiltration practice (units of length, usually m)
;d :Depth e.g. of an infiltration practice (units of length, usually mm or m)
;f :Infiltration rate (usually mm/hr)
;f :Infiltration rate (usually mm/hr)