The workshop provides an overview of the Federal Research Program Wasser: N and presents current projects from ongoing funding measures: "Water Extreme Events (WaX)", "Sustainable Groundwater Management (LURCH)" and "SME-innovative". Technologies, concepts and strategies for drought, heavy rainfall and flood risk management as well as for sustainable management of groundwater resources will be presented. The workshop will open with a keynote address, followed by three presentations. Between presentations, short discussion blocks will provide time for exchange with the audience.