Geological Characteristics of Aquifers

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Aquifers allow for individuals to be able to get ground water from wells and other water sources. Aquifers consist of saturated rocks that allow for the passage of water through the small open spaces between them (Lutgen & Tarbuck 2011). This is of great importance when looking and analyzing an aquifer for its ability to be used. There are particular geological characteristics that aquifers and the land around them must possess in order for them to be usable. Porosity of the aquifer is immensely important as the holes in aquifers such as sandstone and fractured limestone, need to be big enough to allow water to flow through (Lutgen & Tarbuck 2011). However, although the permeability of the aquifer and the ground is very important, the holes that allow water to go through in order for the aquifer to be useful cannot exceed a particular size either. If the aquifer is too permeable, too much water will flow through too quickly, and the well that uses the aquifer will dry out; this is because the rate at which the water is being used is faster than the rate at which the water can be replaced (Lutgen & Tarbuck 2011). The numbers of small pores in between the aquifers are important for filtering the water as well. The smaller the holes in the aquifers are, the more bacteria that can be filtered therefore preventing these bacteria from reaching and endangering people. However, the size needs to be big enough for the water to flow through so that the water does not clog and have
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