Practical Water Loss Performance Metrics & Benchmarks

-Bambos Charalambous & Stuart Hamilton-


This guide offers a clear, practical overview of key performance indicators (KPIs) and benchmarks which are currently being widely used for managing water losses in distribution systems, an essential resource for utilities striving for efficiency and sustainability. Aligned with the IWA Water Loss Specialist Group current methodologies, it outlines key metrics for Non-Revenue Water, apparent and real losses, and infrastructure leakage. It also tackles the unique challenges of intermittent supply systems and provides a solid framework for benchmarking and continuous improvement. For utilities aiming to cut losses, boost performance, and progress toward sustainable 24/7 water supply, this is a valuable reference.



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