Ina Vertommen is a scientific researcher in the Water Infrastructure (WIS) team. She works with her colleagues on the development of the Gondwana optimisation platform and translates water-practice problems, such as the design of network blueprints and DMAs, into mathematical optimisation problems. Ina also researches the impact of the weather, holidays and vacation periods on water consumption, and the use of customer complaints as alternative indicators of water-quality problems. Moreover, Ina is experienced in the detection of leakages and changes in consumption patterns based on the CFPD method, contamination source identification for water-quality incidents, and the registration and analysis of failures in USTORE. As a basis, Ina holds a Master’s in Environmental Engineering from the University of Coimbra in Portugal. Her Master’s graduation research, at Sapienza University in Rome, focused on scale effects in water consumption. Her doctoral research (at both Coimbra and Sapienza) deals with the uncertainty in water consumption and the optimal design of distribution networks. During her course of studies, Ina has built up a knowledge base about the uncertainty in water consumption, statistics and optimisation problems and techniques. Thanks to her international background, Ina also speaks Portuguese, English and Italian, besides Dutch.