A study with the objective of identifying the hydro-geochemical processes and their relation with existing quality of groundwater was carried out in an intensively partially hilly region of the district of Tamilnadu, India. The study area is one of the backward city in our state. The study approach includes conventional graphical plots and multivariate analysis of the hydrochemical data to define the geochemical evaluation of aquifer system based on the ionic constituents, water types, and factors controlling groundwater quality. Groundwater quality maps are effective for identifying locations that involve the threat of contamination. The study area situated in central part of Tamilnadu, India. Study area lies between 11°06’11” N to 11°80’05”N in latitude and in longitude from 78°39’28” E to 79°39’19” E. The groundwater samples were collected from different location of our study area and the locations having a coordinates point. It’s obtained by using handheld global positioning system (GPS) receiver. The analysed geochemical data were to be discussed in the various methodologies like USSL, Piper. The above analytical methods to give the solution to our ground water quality.

Keywords: Groundwater Quality; Physico-Chemical Analysis; Perambalur;