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Run off Water Harvesting * Surface Water Harvesting
Disruption of the natural hydrological cycle due to the reduction of infiltration rate and ground water recharge invariably has increased the surface run off.
The volume of the surface run off has been further augmented by rapid urbanization, shrinking of open area, conversion of water bodies for human settlements, obstruction of natural flow of water by construction of elevated roads and streets, paving of open areas by concrete slabs, etc. This large quantity of water, which is otherwise wasted, can be fully utilized for recharge purpose by constructing innovative and cost effective recharge structures like percolation pits.
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