Abstract: Abstract Contrary to the popular image of caverns and underground rivers, ground water is the water that fills or saturates the soil in a specific location. Water level drawdown describes the effect on the actual or potential water surface of removing water from a well, trench, or sump. The water table is the interface between this saturated water/soil zone (or aquifer) and an unsaturated water/soil zone. The concept of an aquifer can be easily seen by filling a jar with rocks. Water can then be poured into the jar to fill up the empty spaces between the rocks. The level of the water in the jar is analogous to the subsurface water table, and the volume saturated with water is the aquifer. If one then placed a straw in the middle of the jar and began to pull out water, the water table would become depressed in a cone shape around the straw similar to the depression in the water level of a sink as the water goes down the drain. This depression in the water table is known as the cone of depression. The vertical difference, at any given point, between the original (or static) water level and the water surface formed by the cone of depression is called the drawdown .
Publication Year: 2004
Publication Date: 2004-10-15
Language: en
Type: other
Indexed In: ['crossref']
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