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When sizing the area of permeable paving based on the contributing drainage area, the following equation may be used:
When sizing the area of permeable paving based on the contributing drainage area, the following equation may be used:
<math>A_p= \frac{Q_c\times A_c}{Vr \times dp – P + q'\times t}</math>
<math>A_p= \frac{Q_c\times A_c}{V_R \times dp – P + q'\times t}</math>
[[category:modeling]]
[[category:modeling]]