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Ch 11.3

Ch 11.3. Water Underground. Ground water. Water located within the rocks below the Earth’s surface is an important resource and plays a role in erosion and deposition. Water accumulates in an area know as the zone of saturation the top of which is the water table .

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Ch 11.3

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  1. Ch 11.3 Water Underground

  2. Ground water • Water located within the rocks below the Earth’s surface is an important resource and plays a role in erosion and deposition. • Water accumulates in an area know as the zone of saturation the top of which is the water table. • The water table rises and falls with the seasons.

  3. Aquifers • A rock layer that stores and allows the flow of water is called an aquifer. • Usually the rock layer above an aquifer must be porous and permeable such as sandstone or limestone.

  4. Groundwater Erosion and Deposition • Ground water can dissolved certain types of rock such as limestone forming caves. • Sometimes the water drips and forms stalactites on the ceilings of caves, or stalagmites on the floors.

  5. Ch. 11.4 Using Water Wisely

  6. Cleaning Polluted Water • Sewage treatment plants are factories that clean the waste materials out of water that comes from the sewer or drains. • Primary Treatment removes solid material such as paper and plastic or oil on top. • Secondary Treatment aerates the water and it is treated with bacteria and chlorine.

  7. Where the water goes

  8. What’s goin’on? • Lake Mead is shrinking. • Levels are becoming a major concern.

  9. The Southern Nevada Water Authority • Patricia Mulroy is heading the plan to build the pipeline from White Pine County to Las Vegas

  10. The Plan • SNWA has plans to build a pipeline to Las Vegas from the aquifer in White Pine county.

  11. The Opposition Great Basin Water Network (GBWN) - Stop Nevada Water Grabs!

  12. What do you think?

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