Hydrogeochemical Evaluation of Mahanga Block, Cuttack District, Odisha, India

K.M. Nayak¹ and H.K. Sahoo^2,

¹Central Ground water Board, Ahmedabad

²P.G.Departmet of Geology, Utkal University, Bhubaneswar

Cite this paper:
K.M. Nayak and H.K. Sahoo. Hydrogeochemical Evaluation of Mahanga Block, Cuttack District, Odisha, India. Journal of Geosciences and Geomatics. 2014; 2(5A):16-21. doi: 10.12691/jgg-2-5A-4

Abstract

Water quality analysis in the Mahanga block of Cuttack district indicate that, ground water quality is controlled by natural geochemical processes such as mineral weathering, dissolution/precipitation reaction, ion-exchange process. The chemical parameters such as Ca, Mg, Na, K, Cl, HCO₃, and SO₄ of groundwater play a significant role in classifying and assessing water quality. With respect to drinking water quality in comparison to BIS (1991) standards, TDS, TA, TH, Ca, Mg, Cl, F, NO₃ are found to exceed the highest desirable limits in some cases but not the maximum permissible limit. With respect to irrigation indices such as residual sodium carbonate (RSC), percent sodium (%Na), permeability index (PI), potential soil salinity (PSS), sodium adsorption ratio (SAR), the groundwater are suitable for irrigation purpose. The relative concentrations such as Ca/Mg, Na/Cl, Cl/(HCO₃+CO₃) and base exchange index are used to assess the salinity of groundwater in the study area.

Keywords:
groundwater quality Mahanga block residual sodium carbonate irrigation permeability index Doneen diagram magnesium hazards

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