The 43 selected papers in this volume, grouped into six topics, address the following issues:
-Large aquifers, resource assessment
-Large aquifers, water salinity and evolution
-Karstic and carbonate aquifer systems
-Geothermal aquifer systems
-Aquifer contamination studies
-Aquifer monitoring systems and management
They were first presented at the International Association of Hydrogeologists Dijon Symposium (30 May - 1 June 2006), to celebrate the 50th anniversary of IAH and the 150th anniversary of the publication of Darcy's Law. The volume also includes a summary of Darcy's life and his contribution to science, and five invited contributions on modern methods to estimate the hydraulic conductivity of aquifers.