Stack #405141
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| Aquifer | a body of rock or sediment that stores groundwater and allows the flow of groundwater
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| Groundwater | the water that is beneath Earth's surface
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| Permeability | the ability of rock or sediment that allows water to pass through its open spaces or pores
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| Water Table | top of the layer of rock that is saturated with groundwater
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| porosity | the amount of open pore spaces in a rock
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| impermeable | rocks that stop the flow of water, water cannot pass through pore spaces
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| water pollution | the introduction of waste matter or chemicals that are harmful to those who drink or are exposed to the water
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| point source pollution | pollution that comes from a specific site
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| waste water | water that contains waste from homes or industry
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| sewage sludge | the solid material that remains after waste water treatment
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| Clean water act of 1972 | goal was to make all surface water clean enough for fishing and swimming by 1983
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| Recharge zone | an area in which water travels downward to become part of an aquifer
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fernandeskotler