$(30$ points$)$ A well is pumped with $Q=1,100\frac{m^3}{d}$ for $30hrs$ in an aquifer with $T=19\frac{m^2}{d}$ and

$S=4\mathrm{.}3{10}^{-4}.$ Pumping is then stopped and allowed to recover for $18hrs.$ Calculate the

drawdown observed at that point in time at a monitoring well $30m$ away from the pumped well.