what is the function of shallow aquifers?
The shallow aquifer system typically is the first groundwater source encountered below the surface; it is the predominant water supply for a majority of wells in the county and is the primary source of water that supports the base flows of streams and ecologically sensitive wetlands and riparian areas.his valley aquifer system is the preeminent source of water for the greater Indianapolis area and supports the preponderance of manufacturing, energy-generation, and other water-intensive activities in the valley. Other aquifers and aquifer systems are also present at greater depth below the shallow aquifer system.