How can the relative positions of an aquifer and aquiclude result in the presence of a spring?

Springs occur naturally and are found where an aquifer and an aquiclude intersect the surface. Or where a confining layer is broken and water rises to the surface by itself. “Artesian Spring”
 
A well is a pipe inserted by people. Using a pump, water is drawn to the surface. In the case of an Artesian Well, the water rises into the pipe by itself from a confined aquifer.

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Master planned communities outside of chicago. note: population density means people living in an area per square mile. chicago, an urban and highly populated area has a much more higher density than a desert, amish community, settlement, or nomadic region.