About Water supply

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Title Water supply
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Water supply is the process of self-provision or provision by third parties in the water industry, commonly a public utility, of water resources of various qualities to different users. Irrigation is covered separately. In 2004 about 3.5 billion people worldwide (54% of the global population) had access to piped water supply through house connections. Another 1.3 billion (20%) had access to an improved water source through other means than house, including standpipes, "water kiosks", protected springs and protected wells. Finally, more than 1 billion people (16%) did not have access to an improved water source, meaning that they have to revert to unprotected wells or springs, canals, lakes or rivers to fetch water. Access to an improved source of water does not necessarily imply that it is safe to drink from that source. Water supply systems get water from a variety of locations, including groundwater (aquifers), surface water (lakes and rivers), conservation and the sea through...
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