Impact Of Artificial Recharge Of Roof Top Rain Water On Ground Water

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For the study of impact of artificial recharge of roof top rainwater on the quantity and quality of groundwater, the geomatic approach was employed for identifying sites for construction of roof top rainwater harvesting structures by preparing various spatial maps. Monitoring and assessment of groundwater levels was carried out in the study area. Normal annual rainfall in the campus of Jawaharlal Nehru Technological University Hyderabad is 821mm with unutilized non-committed surplus monsoon runoff. Artificial recharge of ground water through rooftop rainwater harvesting was done by constructing three recharge structures each with a capacity of 1, 00, 000 litres. A total rainfall of 658.1 mm has been found to be recorded and a total quantity of 23, 96, 160 liters of groundwater has been found to be recharged during the four months period in the campus.

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