A silty-sand aquifer has a hydraulic conductivity of 10-4 cm/s. Two piezometers are located 300 m apart and indicate groundwater elevations of 12m and 10m above a datum. The porosity of the aquifer is 0.30. (a) What is the specific discharge in this aquifer? (b) What is the maximum velocity that a salt tracer would move in this aquifer? (c) Assuming that the aquifer is 8 m in depth, what is the discharge per meter perpendicular to the water flow?

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Principles of Seepage

In hydrology, when water flows down in a pore or crack of unsaturated soil due to gravity, the deep layer of soil is called seepage. It is the slow movement of water in the soil layer. Seepage is mainly found near hydraulic structures and is responsible for the stability of earthen-type hydraulic structures.