Amaechi, O.M. et al. 2026. Comparative Effects of Rainwater and Borehole Water on Concrete Construction: A Case Study of the Niger Delta Region, Nigeria. Faculty of Natural and Applied Sciences Journal of Applied and Physical Sciences. 3, 1 (Mar. 2026), 57–62. DOI:https://doi.org/10.63561/japs.v3i1.1183.