ABSTRACT
Water wells function through drawing groundwater from the aquifer and pumping it
out through the well. This water being extracted from the well is creating an impact
on the groundwater still resident in the aquifer. In the act of pumping water out of the
well (or in the case of an injection well pushing water into the aquifer), a sphere of
influence is created in the aquifer. The static water level is affected and declines in
the immediate surroundings of the borehole (well) from which the water is being
extracted. With a routine production demand on the aquifer, there is a shifting with
the static water level around the well being pulled down periodically in harmony
with the demand. A sphere of influence now exists around the active well that will
change the microbiology and even the hydraulic characteristics. These changes in
demand can materially affect both the quality and the quantity of water emerging
from that well, but often the changes occur very slowly that the signals indicating
degeneration can easily be missed.
