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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