The study scrutinizes the groundwater evolution and its relation in the Kerian irrigation scheme of Perak region using isotope and hydrochemical analyses. Nine representative groundwater samples were collected from nine different wells that cover the Kerian area. The samples are analyzed on geochemical characteristics, ionic composition and hydrofacies. Resistivity image profiling (RIP) surveys were carried out in tracing the existing of aquifer layer. The major ionic compositions show a wide variation in the hydrochemical properties of groundwater of the area. The degree correspondences among cations and anions have been estimated in order to evaluate their mutual relationship. The important hydrogeophysical parameters have been estimated for reasonable assessment of groundwater quality for irrigation purposes. Piper Diagrams have been plotted to classify the hydrofacies and Wilcox plot as well to quickly determine the viability of water for irrigation used. Interpretations of environmental isotope (18O and 2H) are applied to groundwater studies in the study area. The isotopic composition of 18O and 2H of groundwater and surface water have small variations and plot close to the global meteoric water line as well as local meteoric water line.