Non-Revenue Water Assessment

Document Type : review paper

Author

• Fereydoun Abbaspour

Bachelor of Fluid Mechanics- Mashhad Water and Wastewater Authority, Iran

https://doi.org/10.22067/jwsd.v1i1.34605

Abstract

Why is Non-Revenue Water (NRW) assessment so important for any water utility? It is common knowledge that the NRW in any water utility is a percentage of the water volume pumped into the network - but this simple percentage figure just isn’t sufficient to understand the water utility’ problem and elaborate an appropriate reduction strategy. Therefore it was necessary to apply the nowadays available methods and tools which had helped to establish a first baseline. The following pages provide a brief overview on the methodology and the related terminology.

Keywords

• Non-Revenue Water
• Unaccounted-for Water
• The Standard Water Balance
• Leakage Management
• Pressure Management
• Real Loss Performance Indicators