The ADES website managed by the BRGM with thefinancial support of AFB, provides public access to data on groundwater chemicalquality and groundwater levels,the mapped results, metadata,and a series of information updates. As a one-stop point of access to relevant information, itconstitutes an essential tool for optimalmanagement of water resources, enhancesunderstanding of groundwater changes, andcontributes solutions for local, national,societal and European issues.