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Subsurface harvesting systems

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A subsurface reservoir in Pernambuco, Brazil has an average depth of 4m, is 50m wide, and 500m long, storing about 4,000m3 of water.

==Reference manuals, videos, and links====

* [http://www.wateraid.org/uk/what_we_do/sustainable_technologies/technology_notes/247.asp Technology Notes: Subsurface Dams]. Water Aid.

==Acknowledgements==

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