(Solved): 3. A confined stratified aquifer has a total thickness of 15m and is made up of three layers. The ...

3. A confined stratified aquifer has a total thickness of $15\mathrm{m}$ and is made up of three layers. The bottom layer has a coefficient of permeability of $24\mathrm{m}/$ day and a thickness of $5\mathrm{m}$.the middle and top layers have permeability of $20\mathrm{m}/$ day and $45\mathrm{m}/$ day respectively and are equal thickness. Calculate the coefficient of transmissivity of the confined aquifer and the equivalent permeability, if the flow is along the stratification