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→Determine the effective infiltration coefficient
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Determine the I/P ratio:
−:<math>R=\frac{A_{c}}{A_{p}}</math>
−{{Plainlist|1= Where:
−*''R'' = Ratio of catchment area (''A<sub>c</sub>'') to BMP footprint area (A<sub>p</sub>) syn. I/P ratio.
−*''A<sub>p</sub>'' = Area of the infiltration practice in m<sup>2</sup>
−*''A<sub>c</sub>'' = Catchment area in m<sup>2</sup>}}
+----+ + +
==Determine the effective infiltration coefficient==
==Determine the effective infiltration coefficient==
−----
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Apply an appropriate [[safety correction factors| safety correction factor]] to the measured infiltration rate:
Apply an appropriate [[safety correction factors| safety correction factor]] to the measured infiltration rate:
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Determine if there is a constraint to the depth (d) of the bioretention practice:
Determine if there is a constraint to the depth (d) of the bioretention practice:
−'''or'''if the land area is limited, determine the I/P ratio:
−:<math>R=\frac{A_{c}}{A_{p}}</math>
−{{Plainlist|1= Where:
−*''R'' = Ratio of catchment area (''A<sub>c</sub>'') to BMP footprint area (A<sub>p</sub>) syn. I/P ratio.
+*''A<sub>p</sub>'' = Area of the infiltration practice in m<sup>2</sup>
+*''A<sub>c</sub>'' = Catchment area in m<sup>2</sup>}}