Spatio-temporal variability of tastes and odors of drinking water within a distribution system

► We combined measurements of taste and odor precursors and sensory tests for drinking water. ► Flavors were assessed by a panel and aggregated into global flavor intensity. ► We found that the global flavor intensity vary considerably spatially and seasonally within the water system. ► We found residual chlorine in the water system has a masking effect on other taste and odours detected.