Soil Recharge Factor

Hydrologic

Soil Group

A

B

C

D

Soil Recharge Factor

S = 18/(annual rainfall in inches)

S = 12/(annual rainfall in inches)

S = 6/(annual rainfall in inches)

S = 3/(annual rainfall in inches)

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The soil recharge factor is derived by dividing the annual recharge volume by the total annual rainfall of the region.