The study area, Lokoja metropolis is the capital of Kogi state. As a result of commercial activities and developmental projects on going in the area, large liquid wastes are generated on the daily bases without any form of management and treatment at the risk of water bodies. In this study, water samples are taken from sources close to liquid wastes disposal points in order to evaluate the extent of contamination. WHO criteria and water quality index technique was used to evaluate the water samples. Water samples are taken from wells, surfaces and boreholes, prepared and stored in a refrigerator before being transferred to the Department of Earth Sciences Kogi State University Anyigba, for laboratory analysis. Physical elements (pH, TDS, EC, and Temperature) were analysed insitu, while the chemical elements were analysed using titration and Atomic absorption spectrometry. The results indicated pH of the water to be slightly acidic to alkaline (5.0 - 8.0), while the concentration of of E.C, TDS, Na, K, were generally low. The concentration of Ca (101- 306 mg/l) and Mg (107 – 215 mg/l are very high; this may be due to hardness of water. The concentration of SO42-, HCO3-, Fe, Mn, As, Pb and Zn are below the WHO permissible limit. Elements like Co, Cr, Ni and Al, are below detectable levels. The water quality Index indicated that 80 % of the water in the area is good and portable.
Keywords: Liquid wastes, Disposal, Physico-Chemical, Property, Water Quality Index