Water balance at DMA allows identifying abnormal water consumptions or possible leakages. This Digital Water Service compares water balance at each DMA based on calibrated hydraulic model with monitored flow data. For each DMA it allows visualizing the pattern of customers' demands identified from mass-balance calibration, the linear leakage index (M1a), the average pressure from the model (AvgPress), the asset management indicator (C) as the ratio M1a/AvgPress and key DMA features.