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An areas rate of groundwater recharge exceeds its rate of groundwater discharge?
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How does a aquifer recharge?
Groundwater recharge, or deep drainage, is the process in which water percolates from the surface down into the groundwater supplies. Recharge does occur naturally, but it can also be achieved through anthropogenic methods, called artificial recharge. In artificial recharge, surface water is rerouted to the subsurface. This is normally done by creating "dug-wells", which are very wide wells that are used to allow water to percolate into the ground at a much faster pace. This is commonly performed in areas with depleted groundwater levels, such as India.
Are areas of alluvial fans found where groundwater erodes limestone to form valleys sinkholes and caverns?
no
Why is groundwater pollution difficult to clean?
Groundwater is difficult to clean because, the water is dispersed throughout large areas of rock, and also because the pollutants can cling to the materials that make up the aquifer.
Explain why polluted groundwater is difficult to clean?
Groundwater is difficult to clean because, the water is dispersed throughout large areas of rock, and also because the pollutants can cling to the materials that make up the aquifer.
Does some groundwater return to the surface?
Some ground water will return to the surface, especially during flooding. At times, areas near bodies of water will have returning ground water in spots.
Can you give me a sentence for groundwater?
Groundwater recharge has begun in some areas
Is precipitation the major groundwater source?
Yes, but run-offs (like from oceans and rivers) help too.Answer:Ultimately all water is from precipitation but it can reach the groundwater through several routes.First off groundwater systems have recharge areas (where the water enters) and discharge areas (where the water comes out). Generally the recharge areas are higher than the discharge areas. This is fortunate as water from the sea (the lowest level of water) returning to the groundwater would make it salty and unfit for agriculture or drinking.Recharge areas can be:* Where the rain or snow falls on porous ground * The bottoms of lakes or rivers * The base of glaciers Groundwater can also be perched (essentially in a pocket of impervious soil or rock where the water is essentially trapped) or in an aquider which has a very low permeability (the flow is very slow). In some areas this water may have been there for several thousand years and laid down in the last glaciation (ice age).
How does a aquifer recharge?
Groundwater recharge, or deep drainage, is the process in which water percolates from the surface down into the groundwater supplies. Recharge does occur naturally, but it can also be achieved through anthropogenic methods, called artificial recharge. In artificial recharge, surface water is rerouted to the subsurface. This is normally done by creating "dug-wells", which are very wide wells that are used to allow water to percolate into the ground at a much faster pace. This is commonly performed in areas with depleted groundwater levels, such as India.
Why does the rate of natural groundwater recharge decrease as urban areas develope?
the rate of natural groundwater recharge decreases as urban areas develop because human clear natural environments such as trees, and replace them with material such as concrete. In order for groundwater to recharge the water has to be able to permeate the soil and sink downwards to aquifers. So by replacing permeable material such as soil with material such as concrete the water can not permeate the soil and travel down to aquifers.
What has the author Peter Meyboom written?
Peter Meyboom has written: 'Patterns of groundwater flow in seven discharge areas in Saskatchewan and Manitoba' -- subject(s): Groundwater
What has the author Thomas E Reilly written?
Thomas E. Reilly has written: 'Factors affecting areas contributing recharge to wells in shallow aquifers' -- subject(s): Groundwater flow, Aquifers 'Guidelines for evaluating ground-water flow models' -- subject(s): Computer simulation, Groundwater flow
Salt water from the ocean may seep into the groundwater in coastal areas if?
groundwater is used faster than it is replaced
Groundwater is the most effective erosion agent in what areas?
Groundwater erosion occurs most often in areas with an abundance of limestone and rainfall. This erosion can create large cavities and caves.
Groundwater is used most by people in which of these areas?
rural
In volcanic areas groundwater heated by magma is source of?
geothermal energy
What has the author J F Ruhl written?
J. F Ruhl has written: 'Simulation of ground-water flow and delineation of areas contributing recharge within the Mt. Simon-Hinckley Aquifer to well fields in the Priarie Island Indian Community, Minnesota' -- subject(s): Mathematical models, Groundwater flow 'Simulation of ground-water flow and delineation of areas contributing recharge within the Mt. Simon-Hinckley aquifer to well fields in the Prairie Island Indian Community, Minnesota' -- subject(s): Artificial groundwater recharge, Computer simulation, Groundwater flow 'Nitrate and pesticides in surficial aquifers and trophic state and phosophorus sources for selected lakes, eastern Otter Tail County, west-central Minnesota, 1993-96' -- subject(s): Environmental aspects, Environmental aspects of Nitrates, Environmental aspects of Pesticides, Groundwater, Nitrates, Pesticides, Quality, Water quality management 'Quantity and quality of seepage from two earthen basins used to store livestock waste in southern Minnesota during the first year of operation, 1997-98' -- subject(s): Animal waste, Environmental aspects, Environmental aspects of Animal waste, Groundwater, Pollution, Seepage 'Hydraulic properties of the Prairie du Chien-Jordan aquifer, Shakopee Mdewakanton Sioux Community, southeastern Minnesota, 1997' -- subject(s): Hydrogeology, Water-supply, Aquifers 'Estimates of recharge to unconfined aquifers and leakage to confined aquifers in the seven-county metropolitan area of Minneapolis-St. Paul, Minnesota' -- subject(s): Artificial groundwater recharge, Hydrogeology, Water table 'Water resources of the White Earth Indian Reservation, northwestern Minnesota' -- subject(s): Hydrology, Groundwater, Groundwater flow
Where does the majority of drinking water comes from in rural areas in North Carolina?
groundwater
