Water with high concentration of minerals is hard water. Water is essential for life. But water with very high degrees of hardness is harmful to health. 120 samples of ground water samples were collected from one town and two different villages. Hardness of water can be determined by EDTA tritrimetric method.Out of all the samples tested 39 (32.5%) samples were moderately hard, 76 (63.33%) samples were hard water and 5 (4.16%) samples were very hard water. Extreeme degrees of hardness is dangerous to health.The present study did not revealed any soft water. There is a false notion that hard water is harmful to health, its not hard water, its very hard water (>180ppm). The minerals that are supplemented to body through water will be beneficial to health in several ways. So public should be educated about degrees of hardness
