12b+annotated+groundwater+problems

12b+annotated+groundwater+problems - Groundwater Depletion...

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Earth: Portrait of a Planet, 3 rd edition, by Stephen Marshak Chapter 19: A Hidden Reserve: Groundwater Groundwater Depletion Severe water table decline can alter surface water flow. By capturing flow, wells may dewater streams and lakes. Especially problematic in arid and semi-arid regions. San Pedro River, SE Arizona.
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Earth: Portrait of a Planet, 3 rd edition, by Stephen Marshak Chapter 19: A Hidden Reserve: Groundwater Groundwater Depletion Cones of depression are capable of reversing flow. An expanding cone may capture pollutants.
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Earth: Portrait of a Planet, 3 rd edition, by Stephen Marshak Chapter 19: A Hidden Reserve: Groundwater Groundwater Depletion Beneath coastal land, fresh water l floats z on salt water. Pumping causes the fresh/salt boundary to rise. Eventually, salt water may enter the pumping well. Salt water intrusion renders the water unpotable.
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Earth: Portrait of a Planet, 3 rd edition, by Stephen Marshak Chapter 19: A Hidden Reserve: Groundwater Groundwater Depletion Water in pore space acts to hold grains apart. When ground water is removed Sediment grains compress, pores collapse. The land surface cracks and sinks. Subsidence is mostly irreversible.
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rd edition, by Stephen Marshak Chapter 19: A Hidden Reserve: Groundwater Groundwater Depletion Dramatic examples of subsidence are well-known.
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This note was uploaded on 02/22/2012 for the course CE 70 taught by Professor Johnson during the Fall '07 term at University of California, Berkeley.

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12b+annotated+groundwater+problems - Groundwater Depletion...

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