The ground water quality of some villages of Petlad Tahsil, of Gujarat, India,are determined by physico-chemical methods. Fifteen water samples from different villages are under studied for assessment of ground water. One sample from each village is under assessment of Physico-chemical solution and various quality parameter are measured including pH, electrical conductivity (EC), total dissolved solids (TDS), total hardness(TH), content of calcium(Ca2+), magnesium(Mg2+), total alkalinity(TA), chloride(Cl-) and sulphate(SO4 2-) concentration present in water. The chemical analysis of water samples show considerable variations and also most of the samples comply with WHO standards for the parameter measured. The results of physico-chemical analysis of water are discussed.