Solve Problems $5-10$ and $5-11$ on p$.82$ of the text, or see below.

$5-10.$ A reservoir with a $35,000-f{t}^2$ area is underlain by layers of stratified soils as depicted in Figure $5-23.$ Compute the water loss from the reservoir in $1$ year. Assume that the pore pressure at the bottom sand layer is zero.

$5-11.$ For the reservoir described in Problem $5-10,$ estimate the average coefficient of permeability in the horizontal direction.

Calculate the seepage and uplift force on the dam seen below if:

$k=6\mathrm{.}82{10}^{-3}c\frac{m}{s}$

$H=45ft.$

$,$ width of dam$=80ft.$

upstream depth to bottom of water $=50ft.$

upstream depth below bottom of water to bottom of dam $=5ft.$

downstream depth to bottom of dam $=5ft.$

depth from bottom of dam to sheet pile cutoff $=10ft.$