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Groundwater access

11 bytes added, 00:07, 5 March 2013

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Rainwater (if given the chance to infiltrate) eventually becomes groundwater. Groundwater is advantageous to harvest as it is always around (in spite of the timing of the rainy season), has a high storage capacity with good water quality (usually), is resilient to inter-annual climate variability and has a low cost relative to alternative sources.

However, the height of the water table depends on a lot of factors: type of soils or rock beneath the surface, nearby reservoirs or rivers, and frequency or overall total abstraction of water from populations nearby. Also consider the quality of the groundwater. Is it too salty or near an agricultural runoff or sewage water area? Locate the infiltration or abstraction points where the water is least likely to be affected by pollutants.

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