$6\mathrm{.}5\mathrm{.}5$ A pumping test was performed to determine the transmissivity and the storativity of a confined aquifer. The drawdown versus time data in an observation well $100m$ away from the pumping well are given in the following table. The discharge from the pumped well was at a constant rate of $3\mathrm{.}6\frac{m^3}{m}in$ throughout the test. Determine the aquifer properties.

$6\mathrm{.}5\mathrm{.}7$ A fully penetrating production well located in a confined aquifer is pumped at a constant rate of $\frac{641}{s}.$ Aquifer characteristics include a transmissibility of $1240\frac{m^2}{?}$ day and coefficient of storage of $4{10}^{-4}.$ Determine the drawdown at a distance of $200m$ from the pumped well after $30$ days of pumping. Compare results using the Theis and the Cooper$-$Jacobs procedures.