Deep groundwater of the Taoudenni Basin

01Background

The Taoudenni Basin holds deep groundwater potential that remains poorly understood.

The challenge was to assess this potential and guide the design of water abstraction structures suited to great depths.

02Issues

Sustainably mobilizing and securing the resource requires precise knowledge of its geometry, productivity and quality.

The challenge was to strengthen decision-making by reducing hydrogeological uncertainties.

03Mission objectives

• Establish the hydrogeological baseline of the basin
• Conduct targeted geophysical investigations
• Assess mobilizable water resources
• Design and monitor deep boreholes

04Services delivered by EAU-GEF

• Synthesis and baseline assessment
• Deep geophysical investigations
• Water resources assessment
• Technical design and monitoring of deep boreholes

05Approach & methodology

The approach combined documentary analysis, field investigations, geophysics and hydrogeological interpretation to clarify the system's functioning.

Results were spatially mapped to inform decision-making and guide the design of structures.

06Results & added value

The mission provided the client with a solid and well-reasoned foundation for sustainable management and mobilization of the resource.

It demonstrates EAU-GEF's expertise across the entire hydrogeological study chain.