environmental engineering /hydrology

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estimate the volume of water that will infiltrate into a soil before surface saturation occurs using the Green-Ampt equation.The following data are known ;
1-saturated moisture content is 0.25
2-the initial moisture content is 0(zero)
3-the average rainfall rating is 2 in./hr
4-the average capillary suction head is 4 in.
5-K=1 in/h
What is the max. soil storage volume if the soil is homogeneous to a water table depth of 5 ft.?

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