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Water Portal / Rainwater Harvesting / Groundwater recharge / Contour trenches

237 bytes added, 18:43, 29 March 2012

→‎Suitable conditions

* Locate trenches in natural runoff areas, but not on slopes over 10%.

* Soil in vicinity needs to have sufficient infiltration capacity and potential sub-surface storage capacity.

* In areas which have very heavy storms it may be dangerous to prevent the water completely from flowing down a slope. Build waterways or drains at a slight angle (1⁄2 degrees - 1 degrees) so that excess water is safely channeled away.

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