It is necessary for Flanders to map out the Flemish water management in a structural way, both quantitatively and qualitatively, and to prepare not only for droughts, but also for floods. These two phenomena seem to be occurring more and more often. Although the quality of surface and groundwater is improving in Flanders, there is still work to be done to comply with the European directives. Work for which VITO has the right experts in house.