German water levels of federal waterways from pegelonline.wsv.de. The 'Wasserstraßen- und Schifffahrtsverwaltung des Bundes (WSV)' provides unchecked raw values, accordingly there is no liability or guarantee for the correctness, accuracy, up-to-dateness, reliability and completeness of the data. This data is freely available under the DL-DE->Zero-2.0 license (see: https://www.govdata.de/dl-de/zero-2-0).