Seasonal Variation of Groundwater Hardness in Mahakalapara Block, Kendrapara District, Odisha, India: A Geospatial Approach: -Prabhu Prasad Das, H.K.Sahoo, P. P. Mohapatra

06-10

Seasonal Variation of Groundwater Hardness in Mahakalapara Block, Kendrapara District, Odisha, India: A Geospatial Approach

 Prabhu Prasad Das¹, H.K.Sahoo², P. P. Mohapatra³

^{1, 2} Department of Geology, Utkal University, Bhubaneswar, Odisha, India ³Department of Earth Sciences, Pondicherry University, Puducherry, India

Abstract: The present research involves hydrochemical analysis of 148 representative groundwater samples across the monsoonal season from quaternary alluvial aquifer system of Mahakalapara Block, coastal Kendrapara district, Odisha. The hydrogeochemical as well as the spatial analysis indicates widespread occurrences of moderately hard to hard groundwater across the entire study area with practically total absence of soft groundwater horizon. The total hardness of the subsurface water displays a distinct increase from premonsoon to postmonsoon season. The southern and western parts of the study area show a greater variation of groundwater hardness than the eastern part. This higher concentration of total hardness of subsurface water is attributed to the greater activity of Calcium and Magnesium divalent cations which seem to be originating from the underground limestone terrain upstream of the western part and from the dissolution of calcrete nodules.See More

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