EN$306$

Assignment $1$

Q$1)$ Explain the following terms!

$($i$)$ Aquifer

$($ii$)$ Aquitard

$($iii$)$ Aquichide

$($iv$)$ Aquifige

Q$2)$ For confined aquifer prove

$Q=\frac{2T{S}_{}}{ln\frac{R}{r}}$

Q$3)$ For unconfied aquifer prove

$Q=\frac{2T(s_1-s_2)}{ln(\frac{r_2}{r_1})}$

Q$4)$ A $30cm$ well completely penetrets a confined aquifer of permeability $42\frac{m}{d}.$ The length of the straimer is $20m.$ Under steatly state of pumping the drandown at the well was fould to be $3m$ & the radius of influence was $300m.$ Calculate the discharge