use semilog graph paper to hand plot the data.

$3)$ Drawdown measurements were carried out in an observation well $61$ m from a pumped well. The pumped well discharged at a constant rate of $500$ gpm $.$ Use the Jacob's method to determine the hydraulic conductivity in m $/$day if the saturated zone is $8$ ft thick. The data are presented in Table $1.$

$(8$ pts$)$

Table $1.$ Drawdown Measurements

$\backslash$begin$\{$tabular$\}\{|$c$|$c$|\}$

$\backslash$hline $\backslash$begin$\{$tabular$\}\{$c$\}$

Time since $\backslash \backslash$

pumping started $\backslash \backslash$

$\backslash ((\backslash$mathrm$\{$min$\})\backslash )$

$\backslash$end$\{$tabular$\}$ & Drawdown $($ft$)\backslash \backslash$

$\backslash$hline $1$ & $0\mathrm{.}16\backslash \backslash$

$\backslash$hline $1\mathrm{.}5$ & $0\mathrm{.}27\backslash \backslash$

$\backslash$hline $2$ & $0\mathrm{.}38\backslash \backslash$

$\backslash$hline $2\mathrm{.}5$ & $0\mathrm{.}46\backslash \backslash$

$\backslash$hline $5$ & $0\mathrm{.}77\backslash \backslash$

$\backslash$hline $10$ & $1\mathrm{.}12\backslash \backslash$

$\backslash$hline $30$ & $1\mathrm{.}70\backslash \backslash$

$\backslash$hline $80$ & $2\mathrm{.}24\backslash \backslash$

$\backslash$hline $100$ & $2\mathrm{.}38\backslash \backslash$

$\backslash$hline $120$ & $2\mathrm{.}49\backslash \backslash$

$\backslash$hline $150$ & $2\mathrm{.}62\backslash \backslash$

$\backslash$hline $180$ & $2\mathrm{.}72\backslash \backslash$

$\backslash$hline $240$ & $2\mathrm{.}88\backslash \backslash$

$\backslash$hline

$\backslash$end$\{$tabular$\}$