A river is located in an area where its route parallels that of a nearby canal. The elevation of the water surface in the river is . In the canal, the water surface is at elevation . A stratum of...

A river is located in an area where its route parallels that of a nearby canal. The elevation of the water surface in the river is . In the canal, the water surface is at elevation . A stratum of coarse-grained soil 10 ft thick is sandwiched between relatively impermeable fine-grained soils, and extends between the canal and the river. The distance between the river and the canal is 500 ft, and the coefficient of permeability of the buried coarse stratum is 0.01 ft per hour.

(a) Make a sketch of the described conditions.

(b) Calculate the seepage loss from canal to river, in gallons per day per mile of river canal length.