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Traditional hand-dug wells

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→‎Suitable conditions

==Suitable conditions==

* Layers of sand and gravel tend to provide good locations for wells and boreholes. Other good locations are in weathered rock in granite areas, along the edges of valleys in mountainous areas or in a river valley where there may be sandy deposits under the banks.

* Care should be taken to avoid siting wells in perched aquifers (shallow aquifers with limited recharge capacity and water storage).

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