Pollution of ground water either from geogenic or anthropogenic sources has become a thingrnof health concern in the city of Addis Ababa. This study assesses the quality hazards of groundrnwater resource by sampling some boreholes from Yaka-Kotebe and Summit-Bole area of thernAddis Ababa. Collected samples were analyzed for water quality parameters using standardrnprocedures. The parameters determined were Electrical Conductivity (EC), pH, TotalrnDissolved Solids (TDS), potassium (K+), sodium (Na+), calcium (Ca2+), magnesium (Mg2+),rniron (Fe), chloride (Cl-), floride (F-), nitrate (NO3rn-) and sulphate (SO4rn-2).rnResults were subjected to evaluations using Arcgis, Aquachem and SPSS for descriptive andrnanalysis of the results. Ca-Na-HCO3 and Na -Ca-HCO3 were the dominate water type in thernstudy area. The mean value of iron (0.55 mg/l) and floride (3.2 mg/l) were above WorldrnHealth Organization standards for drinking water in Yaka-Kotebe area. Similarly, the meanrnvalue of TDS (862 mg/l) and EC (1356 mg/l) for water samples from Summit-Bole wererngreater than maximum permissible standards for drinking water Guide Line of World HealthrnOrganization. It was also observed from EPA secondary data upstream to downstream alongrnAkaki rivers increase in the concentrations of heavy metals, TDS, EC, pH, and temperaturernand associated with the generally declining DO level.rnGenerally, in the study area from water sample analysed about 50% of water samples wererngreater than World Health Organization maximum permissible standards for drinking waterrnfor water quality parameters such as Fe, F-, NO3rn-, EC, and TDS. Therefore, elevated values ofrnthese parameters are of great concern to public health when the water from these boreholes isrnconsumed by people without treatment.