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Artificial
recharge is the process whereby surface water is transferred
underground to be stored in an aquifer.The most common
methods used involve injecting water into boreholes and transferring
water into spreading basins where it infiltrates the subsurface.
Underground water
storage is an efficient way to store water because it is not vulnerable
to
evaporation losses and it is relatively safe from contamination.
Internationally,
artificial recharge is becoming an increasingly recognised form of
water storage and conservation. South Africa has one major established
artificial recharge scheme (Atlantis), however, this technology is
underutilised and together with proper groundwater management,
artificial recharge can contribute significantly towards maximising the
use and
sustainability of available water resources. The purposes and methods
of artificial
recharge, and local and international examples are described in Section B
of the
Artificial Recharge Strategy.
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