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Water Portal / Rainwater Harvesting / Groundwater recharge / Infiltration ponds

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[[Image:aquifer rch icon.png|right|80px]]

[[Image:InfiltrationBasin.jpg|thumb|right|200px| An infiltration basin in Omdel, Namibia. The aquifer provides water to the coastal towns of Walvis Bay, Swakopmund and Henties Bay, and a large open pit mine at Rössing.]]

'''Infiltration ponds ''' (also called infiltration basins or percolation ponds) are large open water ponds that are either excavated or in an area of land surrounded by a bank, and normally will not exceed 15,000 m3. They store rainwater but with the main aim of infiltrating the water to aquifers where it can be extracted using boreholes, hand-dug wells, or nearby springs. They are constructed in areas where the base of the pond is permeable and where the aquifer to be recharged is at or near the surface.

===Suitable conditions===

===Manuals, videos and links===

* [http://www.livnetregs.acorg.uk/surcaselibrary_of_topics/themes_actionswater/sustainable_drainagesustainable_urban_drain_system/what_are_suds.html aspx Sustainable Drainage Systems (SUDS)]. University of Liverpool.

* [http://www.artificialrecharge.co.za/strategydocument/ARStrategySectB.pdf The Artificial Recharge Concept, its Application and Potential] Some examples from Africa, Europe, the Middle East, Australia and USA.

* [http://www.portlandoregon.gov/bes/article/127474 Vegetated infiltration basins.] Use plants to filter the water and control flooding.

===Acknowledgements===

* CARE Nederland, Desk Study: [[Resilient WASH systems in drought-prone areas]]. October 2010.

* [http://www.washdoc.info/docsearch/title/169828 Smart Water Harvesting Solutions: Examples of innovative, low cost technologies for rain, fog, and runoff water and groundwater.] (or [http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=9&ved=0CGsQFjAI&url=http%3A%2F%2Fwww.arcworld.org/downloads/smart%2Fdownloads%2Fsmart%2520water20water%2520harvesting20harvesting.pdf&ei=NXNzT7CYEIiTiQKdxviYCw&usg=AFQjCNECS9O4gaRRQadp5dd4B5RDPxTwQA&sig2=QwWuUbra7my8Dpq5c_0baw alternative link]) Netherlands Water Partnership, Aqua for All, Agromisa, et al. 2007.

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