Project results have been presented at the EGU General Assembly 2020 in the online format Sharing Geoscience Online. Abstract and presentation material “Use of flow cytometry and DNA sequencing as a proxy for characterising microbial communities during managed aquifer recharge” presented by Christoph Sprenger is available online at https://meetingorganizer.copernicus.org/EGU2020/displays/35512. For further information, please contact: christoph.sprenger@kompetenz-wasser.de.