Faced with the combined effects of climate change, population growth and increasing pressure on water resources, Niger is confronting major challenges in the sustainable management of groundwater. In the Tahoua region, improving understanding of this resource has become a priority in order to secure the water supply and guide management decisions.

Against this backdrop, UNICEF has initiated the development of a groundwater monitoring system designed to provide reliable data on the availability and trends of this resource. The study aimed to identify the most suitable sites for the installation of monitoring wells using an approach combining hydrogeological analyses, GIS tools and multi-criteria analysis.

Type of services provided

• Collection and analysis of geological, hydrogeological and hydrological data for the Tahoua region.

• Conducting a multi-criteria analysis using GIS to identify suitable locations for monitoring wells.
• Assessment of key parameters such as aquifer recharge, soil permeability and topographical characteristics.
• Validation of shortlisted sites through geophysical investigations.
• Support for the design of the groundwater monitoring network and the selection of exploration sites.
• Drafting of the terms of reference for drilling works.
• Assistance to the client in the supervision and monitoring of drilling operations.