Mutual Interference of Water Wells

A general equation is developed which describes the relationship between the drawdown of any one well in an array which is pumping at a decreasing rate, the duration of pumping, the distance from the well to the other wells, and the aquifer characteristics for infinite, homogeneous, confined aquifer. The decrease in discharge is introduced by means of the head-capacity curve for each pump. These relationships can be used to predict future drawdown and discharge for any individual well, existing or proposed, in an array having a given geometrical pattern. An example is provided for the case of three wells located at the vertices of an equilateral triangle. The variation of discharge with time for various well spacings for each of the three wells is presented.