Assume $1-$dimensional flow in the vertical direction. Compute the following:

a$.$ Porewater pressure at point $A(kPa)$

b$.$ Flow rate in the clay layer in $\frac{m^3}{?}$ day $\frac{?}{m^2}$

c$.$ Hydraulic gradients in the clay and silt layers

d$.$ Depth of groundwater surface from the ground surface

e$.$ A summary table of $h_t,h_z,$ and $h_p$ at points $A,B,$ and $D$