The Water Planner builds a hydrologic and hydraulic model in SOBEK and produces time series of random variables. The results are processed into water level statistics and are presented as inundation, risk and bottleneck maps. Subsequently, measures such as increasing water retention areas, lowering the water level or locally raising the surface level can simply be entered in the schematisation. Results with and without measures can be compared. This provides a quick overview of the opportunities in the region to meet the standards set by law. The Water Planner is a tool in ArcMap.