Abstract
A hydro geochemical study was conducted in Ariyalur region situated in the southeast of Tamil Nadu, India to identify suitability of groundwater for drinking, domestic and agricultural purposes. To have a synoptic view of geochemical processes in the region, a total of 73 groundwater samples were collected and analyzed for cations and anions. The geochemical parameters were compared with WHO and it was found that most of the samples are unsuitable for drinking purpose. The samples were classified with parameters like sodium absorption ratio, residual sodium carbonate, total hardness, chloride, index to Base Exchange, electrical conductivity and faces to determine their suitability for irrigation purpose. The geochemical faces of the groundwater have been studied by Gibbs plot and reconstructed piper plot which shows that weathering, ion exchange and anthropogenic processes controlling the groundwater chemistry in the region.

201604011A study on the hydrogeochemical processes groundwater quality of Ariyalur pdf.