The potential of knowing more – a review of data- driven urban water management Sven Eggimann 1,2 *, Lena Mutzner 1,2 , Omar Wani 1,2 , Mariane Yvonne Schneider 1,2 , Dorothee Spuhler 1,2 , Matthew Moy de Vitry 1,2 , Philipp Beutler 1,2 , Max Maurer 1,2 1 Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland. 2 Institute of Civil, Environmental and Geomatic Engineering, ETH Zürich, 8093 Zurich, Switzerland. TOC/Abstract Art Abstract: The promise of collecting and utilising large amounts of data has never been greater in the history of urban water management (UWM). This paper reviews several data- driven approaches which play a key role in bringing forward a sea change. It critically investigates whether data-driven UWM offers a promising foundation for addressing current This document is the accepted manuscript version of the following article: Eggimann, S., Mutzner, L., Wani, O., Schneider, M. Y., Spuhler, D., Moy de Vitry, M., … Maurer, M. (2017). The potential of knowing more – a review of data-driven urban water management. Environmental Science and Technology, 51(5), 2538-2553. http://doi.org/10.1021/acs.est.6b04267 1