**4. Conclusions**

This study assessed the physicochemical characteristics and selected contamination patterns of thirty-three water samples from three southwest states in Nigeria. Additionally, in the study, the EF, CF, and MI were determined. The physicochemical and elemental levels obtained were within the standard limits of WHO and NISDQW. The EFs of the water samples were moderately to significantly enriched. All elemental CFs were below the Level 1 pollution threshold. The MI rating showed that they are suitable for human and animal consumption and also for irrigation purposes. Although the present study concluded that the water samples were good, efforts should be put in place to prevent them from being polluted.

**Author Contributions:** Conceptualization, F.O.A.; methodology, A.A. (Akinyinka Akinnusotu) and S.D.O.; formal analysis, E.A.A. and S.D.O.; investigation, S.O.M.; data curation, K.M.A.; writing— original draft preparation, F.O.A.; writing—review and editing, E.A.A., K.M.A., S.D.O. and A.A. (Akinyinka Akinnusotu); supervision, A.A. (Ademola Adamu) and S.O.M. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research received no external funding.

**Institutional Review Board Statement:** Not applicable.

**Informed Consent Statement:** Not applicable.

**Data Availability Statement:** The raw data are available upon request. Please contact the corresponding authors.

**Acknowledgments:** The authors are grateful for the permissions granted by the owners of the dug wells and boreholes to obtain samples from their homes and offices.

**Conflicts of Interest:** The authors declare no conflict of interest.
