Original Paper

Arabian Journal of Geosciences

, Volume 6, Issue 1, pp 101-108

Evaluation of hydrogeochemical parameters and quality assessment of the groundwater in Kottur blocks, Tiruvarur district, Tamilnadu, India

  • Thirunavukkarasu RamkumarAffiliated withDepartment of Earth Sciences, Annamalai University
  • , Senapathi VenkatramananAffiliated withResearch scholar, Department of Earth Sciences, Annamalai University Email author 
  • , Irudhayanathan AnithamaryAffiliated withResearch scholar, Department of Earth Sciences, Annamalai University
  • , Sheik Mohamed Syed IbrahimAffiliated withResearch scholar, Department of Earth Sciences, Annamalai University

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Abstract

A study was conducted to evaluate the water quality of Kottur block, Thiruvarur district, Tamilnadu. Groundwater samples from hand pumps and tube wells of 16 stations were analyzed during postmonsoon and premonsoon (2008) with the help of standard methods of APHA (1995). Dominance of cations are in the following order Na>Ca>K>Mg and Cl>SO4>HCO3>NO3 by anions in both the seasons. The analytical results shows higher concentration of total dissolved solids, electrical conductivity, sodium, chloride, and sulfate which indicate signs of deterioration but values of pH, calcium, magnesium, and nitrate are within permissible limit as per World Health Organization standards. From the Piper trilinear diagram, it is observed that the majority of groundwater samples are Na-Cl and Ca-Mg-SO4 facies clearly indicates seawater incursion. In Wilcox diagram, most of the samples fall in low to very high sodium hazard and low to very high salinity hazard indicates moderately suitable for agricultural activities. Kelly’s ratio and magnesium ratio indicates most of the samples fall in suitable for irrigation purpose.

Keywords

Groundwater chemistry Piper trilinear diagram Wilcox diagram Kelly ratio Magnesium ratio