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Rivers and aquifers

Rivers and aquifers . Reagan Richter Kevin Campbell. Aquifer. An aquifer is an underground layer of water-bearing permeable rock or unconsolidated materials such as gravel, sand, silt, or clay from which groundwater can be usefully extracted using a water well. Aquifer. Aquifer.

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Rivers and aquifers

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  1. Rivers and aquifers Reagan Richter Kevin Campbell

  2. Aquifer • An aquifer is an underground layer of water-bearing permeable rock or unconsolidated materials such as gravel, sand, silt, or clay from which groundwater can be usefully extracted using a water well.

  3. Aquifer

  4. Aquifer Wells can be drilled into the Aquifers and water can be pumped out. Precipitation eventually adds water (recharge) into the porous rock of the aquifer. The rate of recharge is not the same for all aquifers, though, and that must be considered when pumping water from a well. Pumping too much water too fast draws down the water in the aquifer and eventually causes a well to yield less and less water and even run dry. In fact, pumping your well too fast can even cause your neighbor's well to run dry if you both are pumping from the same aquifer.

  5. Aquifer • Saturated means the pressure head of the water is greater than atmospheric pressure (it has a gauge pressure > 0). The definition of the water table is surface where the pressure head is equal to atmospheric pressure (where gauge pressure =0). • Unsaturated means the zone is held in place by surface adhesive forces and it rises above the water table (the zero gauge pressure isobar) by capillary action to saturate a small zone above the phreatic surface (the capillary fringe) at less than atmospheric pressure.

  6. Aquifer • Groundwater can become contaminated in many ways. If surface water that recharges an aquifer is polluted, the groundwater will also become contaminated. Contaminated groundwater can then affect the quality of surface water at discharge areas. Groundwater can also become contaminated when liquid hazardous substances soak down through the soil into groundwater. • http://www.accuweather.com/video/82206127001/aquifers-and-caves.asp

  7. Aquifer • When it rains the rain seeps into the ground through a process and drains into the aquifer. That’s how we get our drinking water. Some of it is contaminated because of pollution. • Your asking who and what pollutes the aquifer? YOU DO!!! DON’T POLLUTE OUR DRINKING WATER WE NEED IT TO SURVIVE!!! • SAVE YOUR WATER DO NOT CONTAMINATE!!!

  8. Aquifer

  9. = Fountain Darter

  10. Barton Salamander

  11. Aquifers • http://www.eoearth.org/article/Aquife • http://en.wikipedia.org/wiki/Aquifer • http://ga.water.usgs.gov/edu/earthgwaquifer.html • http://www.edwardsaquifer.net/ • http://www.answers.com/topic/aquifer

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