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groundwater well

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  • Well drainage — means drainage of agricultural lands by wells. Agricultural land is drained by pumped wells (vertical drainage) to improve the soils by controlling water table levels and soil salinity. Contents 1 Introduction 2 Design 3 Flow to wells 4 …   Wikipedia

  • Groundwater-related subsidence — is the subsidence (or the sinking) of land resulting from groundwater extraction. One estimate has 80% of serious land subsidence problems associated with the excessive extraction of groundwater [http://water.usgs.gov/ogw/pubs/fs00165/] , making… …   Wikipedia

  • Well logging — Gamma ray logging Spontaneous potential logging Resistivity logging Density logging Sonic logging Caliper logging Mud logging LWD/MWD v · …   Wikipedia

  • Groundwater — Shipot, a common source of drinking water in a Ukrainian village. Groundwater is water located beneath the ground surface in soil pore spaces and in the fractures of rock formations. A unit of rock or an unconsolidated deposit is called an… …   Wikipedia

  • Groundwater flow equation — Used in hydrogeology, the groundwater flow equation is the mathematical relationship which is used to describe the flow of groundwater through an aquifer. The transient flow of groundwater is described by a form of the diffusion equation, similar …   Wikipedia

  • Groundwater recharge — Water balance Groundwater recharge or deep drainage or deep percolation is a hydrologic process where water moves downward from surface water to groundwater. This process usually occurs in the vadose zone below plant roots and is often expressed… …   Wikipedia

  • Well test — This article discusses water well testing; the testing of other wells, eg. petroleum wells, is a separate field.A well test is conducted to evaluate the amount of water that can be pumped from a particular water well. More specifically, a well… …   Wikipedia

  • well —   a hole dug or drilled into the ground to allow access to groundwater …   Geography glossary

  • groundwater — ground′wa ter or ground′ wa ter n. gel the water beneath the surface of the ground, the source of spring and well water • Etymology: 1885–90 …   From formal English to slang

  • Water well — Village pump redirects here. For information on Wikipedia project related discussions see Wikipedia:Village pump. Water well at the Wald monastery in Germany. A water well is an excavation or structure created in the ground by digging, driving,… …   Wikipedia

  • Arsenic contamination of groundwater — is a natural occurring high concentration of arsenic in deeper levels of groundwater, which became a high profile problem in recent years due to the use of deep tubewells for water supply in the Ganges Delta, causing serious arsenic poisoning to… …   Wikipedia

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