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Question

What happens if the ground water is used in excess?

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Solution

Groundwater depletion is primarily caused by sustained groundwater pumping. Some of the negative effects of groundwater depletion:

  • Lowering of the Water Table

    Excessive pumping can lower the groundwater table, and cause wells to no longer be able to reach groundwater.

  • Increased Costs

    As the water table lowers, the water must be pumped farther to reach the surface, using more energy. In extreme cases, using such a well can be cost prohibitive.

  • Reduced Surface Water Supplies

    Groundwater and surface water are connected. When groundwater is overused, the lakes, streams, and rivers connected to groundwater can also have their supply diminished.

  • Land Subsidence

    Land subsidence occurs when there is a loss of support below ground. This is most often caused by human activities, mainly from the overuse of groundwater, when the soil collapses, compacts, and drops.

  • Water Quality Concerns

    Excessive pumping in coastal areas can cause saltwater to move inland and upward, resulting in saltwater contamination of the water supply


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