Water (surface water and ground water) is an important parameter for a sustainability and ecological balance of biodiversity. Ground water samples were collected from selected locations of Addis Zemen city and the physicochemical factors were characterized by employing standard research methods. The groundwater quality and its appropriateness for drinking and irrigation purposes was investigated. The average physicochemical properties of groundwater were about a conductivity of 1137 µs/cm, a total hardness of 439 mg/l, a magnesium of 179.5 mg/l, a calcium of 309.5 mg/l, a total dissolved solid of 887 mg/l, a pH of 8.40, a total alkalinity of 691 mg/l, a sodium of 109 mg/l, a phosphate of 0.28 mg/l, a chloride of 56mg/l, a potassium of 5 mg/l, a sulphate of 64 mg/l, a nitrate of 19 mg/l. bicarbonates alkalinity value of 565 mg/L. Moreover, calculated parameters such as exchangeable sodium percentage, percentage sodium, residual sodium carbonate, sodium adsorption ratio, langelier saturation index and aggressive index were used to check the suitability of ground water for drinking, domestic, irrigation and industrial purpose. The research showed that the majority of the groundwater samples were inappropriate for irrigation and for drinking. Finally, ground water pollution management options were recommended. Keywords: Groundwater, Physico-chemical, Characterization, Pollution Management, Addis Zemen City.