A confined aquifer has a potentiometric surface (instead of a water table), which is defined as the level to which water would rise if a well were drilled into the confined aquifer. The theoretical ve...A confined aquifer has a potentiometric surface (instead of a water table), which is defined as the level to which water would rise if a well were drilled into the confined aquifer. The theoretical velocity of flow in an aquifer is defined by Darcy’s law as the hydraulic conductivity (a measure of permeability) times the hydraulic gradient (V = K * i).
