Consider two strata of the same soil material that lie between two channels. The first stratum is confined and the second one is unconfined, and the water surface elevations in the channels are 24 m and 16 m above the bottom of the unconfined aquifer. What should be the thickness of the confined aquifer for which (1) the discharge through both strata are equal? (2) the discharge through the confined aquifer is half of that through the unconfined aquifer?

Fig: 1

Fig: 2

Fig: 3