$5\mathrm{.}0(20$ marks$)$

An earth dam section is shown in Figure $5\mathrm{.}0.$ Determine the rate of seepage through the earth dam

$(\frac{m^3}{m}\frac{?}{\text{m}\text{i}\text{n}})$ given that $k_x=4{10}^{-5}\frac{m}{m}in$ and $k_z=1{10}^{-5}\frac{m}{m}in.$

Figure $5\mathrm{.}0$