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Riverbed jetted and driven wells

9 bytes added, 05:28, 17 January 2013
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[[Image:dry riverbed well.jpg|thumb|right|300px|Halima Bidu collects water from a deep earth well on a dry river bed. Photo: Siegfried Modola/Shoot the Earth/[http://www.actionaid.org/2011/08/why-drought-about-power-not-rain ActionAid]]]
[[Image:JettedDrivenWellPoint.jpg|thumb|right|370px|Jetted / driven well point. Photo: WEDC © Ken Chatterton.]]
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This category includes short small diameter cylindrical screens (slotted or perforated pipes) that are inserted into unconsolidated sediments using water pressure or physical force, usually vertically or obliquely. Digging is not needed in this case.
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