Evaluation of Surface Water Contamination by Leachate from Uncontrolled Landfills: A Case Study of Yenagoa Central Waste Dump, Nigeria

Recently, surface water pollution has generated grave concerns because of anthropogenic activities including inadequate management waste. Therefore, this study is concerned with the evaluation contamination by leachate from uncontrolled landfill in Yenagoa Bayelsa State, Nigeria. Three samples were taken a stream adjacent to an and analyzed. The Downstream point (SW 1) Upstream points 3) 50 meters southernmost northernmost ends landfill, while Central 2) was also central edge landfill. parameters analyzed were, pH, EC, TDS, COD, BOD, TH,NH4+, SO42-, NO3-, Phosphate, Cd, Cr, Cu2+, Pb, Zn, Ca2+, Mg2+, Na+, Fe2+, K+, as well Total coliform count using standard methods. concentration these compared NSDWQ WHO ascertain their levels within water. analysis across showed that like TA, TH, Na, K, Fe, Phosphate Coliform Count, recorded 7.18, 2,450 μS/cm, 1,225 mg/l, 534.9 270 122.92 69.42 9.48 25 16 7.5 mg/l 2.80 X 106 cfu/ml respectively. All values except pH above recommended for potable When SW 2 3, 1 had higher parameters. However, some metals heavy Cu, Cd Cr below equipment detectable limits all sampled locations. It confirmed therefore 1), most contaminated among three points, study. Pearson’s correlational indicated unity. sources around landfills should be properly monitored curb pollution.