3-D hydrogeological model of limestone aquifer for managed aquifer recharge in Raipur of central India


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April 2016


Raipur of Chhattisgarh state, central India, is facing water problems due to rapid urbanization and altered hydrological processes despite adequate rainfall. Deteriorated surface water, diminished recharge and elevated pumping have reduced water availability in the region. Therefore, proper measures like managed aquifer recharge (MAR) need to be successfully implemented to conserve rain water for long-term sustainability. Hydrogeological data, combined with geophysical investigations lead to the construction of a conceptual model of the Chandi limestone aquifer for this purpose. The results indicate that the compact and massive limestone has negligible primary porosity, but solution weathering (karstification) has developed secondary pores at variable depths that favour recharge, groundwater storage and movement. The study helped to locate potential recharge sites that have significance in optimizing MAR structures such as check dams and injection wells. The hydrogeological model has a great significance in managing these complex and heterogeneous aquifers for better future water supply in the region.


Hydrogeological Model, Managed Aquifer Recharge, Chandi Limestone, India

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