The coefficients of permeability of soils of an unconfined aquifer and another confined aquifer were determined by pumping water from the wells and observing the effect of water table in two test wells at equal distances was found to be equal. The total height of confined aquifer H is given by

• H = h2 - h1
• H = h1 - h2
• H = h2 + h1
• (h1 + h2)