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Geochemical Studies of Groundwater Present in Upper Thirumanimuthar Sub-Basin, Tamil Nadu, India


Affiliations
1 Department of Earth Sciences, Annamalai University, Annamalai Nagar-608 002, T.N., India
2 Institute for Ocean Management, Anna University, Chennai, T.N., India
 

Geochemical analysis of groundwater is employed to evaluate the postmonsoon 2005 water quality of upper Thirumanimuthar subbasin. Thirty two representative groundwater samples were collected from dug and bore wells. The samples were analysed to monitor the water chemistry of major ions. The results were evaluated in detailed and compared with WHO water quality standards. An overall assessment of the water samples indicated that all parameters are within the permissible limit except in some locations. According to the USSL diagram most of the samples falls in C3-S1 class, which indicates its suitable nature. Piper trilinear diagram interpretations were made to know the chemical type of the groundwater. It reveals that the subsurface water is alkaline earth (Ca+Mg) exceeds alkalies (Na+K) type.

Keywords

Groundwater, Geochemical Studies, Piper Trilinear Diagram, Kalley’s Ratio, Sodium adsorption ratio, Magnesium Hazards, Sodium Percentage.
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  • Geochemical Studies of Groundwater Present in Upper Thirumanimuthar Sub-Basin, Tamil Nadu, India

Abstract Views: 198  |  PDF Views: 2

Authors

B. Gurugnanam
Department of Earth Sciences, Annamalai University, Annamalai Nagar-608 002, T.N., India
M. Suganya
Department of Earth Sciences, Annamalai University, Annamalai Nagar-608 002, T.N., India
M. Suresh
Department of Earth Sciences, Annamalai University, Annamalai Nagar-608 002, T.N., India
K. Dharanirajan
Institute for Ocean Management, Anna University, Chennai, T.N., India

Abstract


Geochemical analysis of groundwater is employed to evaluate the postmonsoon 2005 water quality of upper Thirumanimuthar subbasin. Thirty two representative groundwater samples were collected from dug and bore wells. The samples were analysed to monitor the water chemistry of major ions. The results were evaluated in detailed and compared with WHO water quality standards. An overall assessment of the water samples indicated that all parameters are within the permissible limit except in some locations. According to the USSL diagram most of the samples falls in C3-S1 class, which indicates its suitable nature. Piper trilinear diagram interpretations were made to know the chemical type of the groundwater. It reveals that the subsurface water is alkaline earth (Ca+Mg) exceeds alkalies (Na+K) type.

Keywords


Groundwater, Geochemical Studies, Piper Trilinear Diagram, Kalley’s Ratio, Sodium adsorption ratio, Magnesium Hazards, Sodium Percentage.