Development of a hydrogeological model of Lagos, Nigeria

groundwater is a very important resource for Lagos, Nigeria, both in domestic, industrial, and agricultural use. The fast rate of urbanization and growth in the population of Lagos City, the understanding of its aquifer systems is requiered. The study will seek to develop a three-dimensional hydrogeological model of Lagos, improve the understanding of the distribution and connectivity of the aquifers, and their spatial variability. The present research has integrated the spatial analysis through QGIS and 3D visualization using Leapfrog Geo software with borehole and lithological data sourced from existing studies. The aquifer boundaries were delineated and the subsurface geology reconstructed by cross-sections developed from lithological data. This 3D model gives a fair representation of the aquifer systems in Lagos and gives an insight into the stratigraphic relationships and zones of potential groundwater storage. The results of this study are expected to support sustainable groundwater management by providing actionable information on the aquifer distribution and connectivity in Lagos.