Background and objective: Eleyele Lake is a multipurpose lake in the metropolitan city of Ibadan that receives
wastes from the surrounding communities. The objective of the study was to check the quality of the lake water with
respect to different physico-chemical parameters and also determine the Water Quality Index of the lake.
Materials and methods: Water samples were collected for three months at three different sites and analyzed for
physico-chemical parameters using standard methods. These sites were selected to assess the quality of the waterbefore
the lake, on the lake and after the lake. Samples were taken with proper measures such as preservation,
storage and labeling, were taken. Collected data were analyzed using Microsoft Excel 2013. Statistical analysis was
performed with SPSS software using one-way ANOVA.
Results: The study showed that most of the physico-chemical parameters were significantly different (P<0.05)
between the sites. Water Quality Index showed that the water quality at the sites was poor.
Conclusion: The results indicate that the lake is polluted and not totally safe for human consumption without