This manuscript deals with the case study – Evaluating Water Meters Performance – as proposed by a Portuguese water utility for the 140th European Study Group with Industry (ESGI140), which took place in Barreiro School of Technology, Polytechnic Institute of Setu´bal (ESTBarreiro/IPS). The objective is to evaluate water meters performance using historical data, knowing that, like any other mechanical device, the water meters suffer a deterioration with time and use, losing accuracy throughout its cycle of use. We intend to approach a problem capable of identifying anomalies on water consumption pattern. The insight gained with this study should help the water utility to identify malfunctioning water meters.

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arima,water comsumption modeling,water meter performance