Changes

#[[Infiltration trenches]], [[Infiltration chambers| chambers]] and [[bioretention cells]] have a maximum recommended I/P ratio of 20.

#[[Infiltration trenches]], [[Infiltration chambers| chambers]] and [[bioretention cells]] have a maximum recommended I/P ratio of 20.

==Determine the effective infiltration coefficient==

==Do things==

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:

:<math>q'=\frac{q}{SCF}</math>

:<math>q'=\frac{q}{SCF}</math>

*''A_p'' = Area of the infiltration practice in m²

*''A_p'' = Area of the infiltration practice in m²

*''A_c'' = Catchment area in m²}}

*''A_c'' = Catchment area in m²}}

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|To calculate the require facility area or footprint where the depth is constrained:

|To calculate the require facility area or footprint where the depth is constrained: