Example: An aquitard consists of two soil layers. The upper layer is $10$ m thick with a hydraulic

conductivity of $5\mathrm{.}010-6c\frac{m}{sec}.$ The lower layer is $15$ m thick, with a hydraulic conductivity of

$2\mathrm{.}510-7c\frac{m}{sec}.$

a$)$ Determine the equivalent hydraulic conductivities of the aquitard for horizontal and

vertical flow

b$)$ B$).$ At some location in the aquitard the water pressure head at the top of the aquitard

is $30$ m $,$ and the water pressure head at the bottom of the aquitard is $56$ m $.$ Determine

the water pressure head at the interface between the layers at this location.

c$)$ If the upper aquitard was fractured with $100$ micron fractures spaced $50$ cm apart,

determine the vertical effective hydraulic conductivity of the aquitard.

B$)$ and C$)$ please