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May 20th, 2011
Bentley Institute Press – New Guide to Water Loss Reduction

Written by a prestigious group of water loss experts from around the world, the book addresses the needs of water utility managers, a wide range of engineers (including water resources, hydraulic, and environmental), as well as teachers and students of the water engineering disciplines. It joins the many other widely acclaimed water books in the Bentley Institute Press catalog, including the Water Resources Modeling collection. What makes Water Loss Reduction stand far above other books on the subject is its comprehensive scope, covering in detail everything from the basics of water loss to almost every method of reducing it, including conventional device-based approaches, data management, simulation and optimization analysis, online monitoring, pressure management, and pipeline condition assessment and renewal planning. To orderWater Loss Reductionclick here.
The authors of this extensive work include: Zheng Yi Wu, Ph.D., Bentley Fellow, research director, Bentley, U.S.A.; Malcolm Farley, CEng, CEnv, C.WEM and FCIWEM, principal consultant at Malcolm Farley Associates, U.K., and leader of the Publications, Communication and Conferences team of IWA Water Loss Task Force; David Turtle, BA (Oxon), CEng, MICE, supply planning manager, United Utilities, U.K.;Sanjay Dahasahasra, Ph.D., member secretary, Maharashtra Jeevan Pradhikaran, India; Madhuri Mulay, Ph.D., head of IT Cell, Maharashtra Jeevan Pradhikaran, India; Joby Boxall, Ph.D., professor of Water Infrastructure Engineering, University of Sheffield, U.K.; Stephen Robert Mounce, Ph.D., research associate, University of Sheffield, U.K.; Yehuda Kleiner, Ph.D., senior research officer and group leader at National Research Council, Canada; and Zoran Kapelan, Ph.D., professor in Water System Engineering, Centre for Water Systems at the University of Exeter, U.K.
In reviewing the book, Kobus van Zyl, professor, University of Cape Town, South Africa, said, “Water Loss Reduction provides an excellent exposition of water loss modeling and management from an engineering perspective. It neatly fills the gap that existed in the literature between the fields of water losses and network modeling. All the important topics, including water losses, data management, hydraulic modeling, leak detection, and pressure and asset management, are covered in an integrated and practical way. I welcome this book and recommend it as an essential resource for engineers and managers working in water distribution systems.”
Water loss affects everyone on the planet. Right now, distribution systems around the world are losing an average of 26 percent of treated water, which amounts to almost $14 billion in lost revenues. But reducing water loss is not just about increasing revenue. It is also about conserving water and energy, reducing carbon footprints, and supplying clean water to the global population.
To successfully address water loss problems, water utilities are challenged to be cost-effective and efficient in implementing long-term programs that consistently reduce both commercial losses (from, for example, theft) and physical losses from leakages. Well-developed information management, water system simulation and optimization modeling technology, and increasingly improved monitoring of systems are valuable tools that can help engineers effectively execute water loss reduction programs. For example, Bentley’s award-winning modeling technology leverages the usage of asset information and enables engineers to quickly construct hydraulic models, simulate leakage with pressure-dependent demand analysis, and identify the likely leakage hotspots during the model calibration process.
Commenting on the problem, Ian Costigan, water asset management director for United Utilities in the U.K., said, “Leakage in England and Wales has been reduced primarily through a combination of managing water pressures in distribution networks and water mains rehabilitation programs. However, it is becoming increasingly difficult to detect leaks that remain in distribution systems, and so we must turn our attention to leakage modeling and detection technology. This book, written by a group of outstanding engineers and researchers from around the world, describes important advances that have been made in these areas. I believe that these technologies will form an essential part of leakage management and water loss reduction strategies, helping all of us move toward an even more sustainable and efficient industry that meets the expectations of consumers.”
Added Dr. Zheng Yi Wu, Bentley Fellow, technical editor and co-author of Water Loss Reduction, “Model-based leakage detection is a growing activity in utilities, as it enables them to send their engineers to locations along pipelines where there’s a high probability they’ll find a leak. This book explains the process and techniques of conducting such programs.”
Wu continued, “Other water loss reduction best practices, such as pressure management, water balance or water audit (which is recommended by the International Water Association), minimum night flow monitoring, and various device-based leakage detection methods, are also discussed in this comprehensive technical reference. Without question, Water Loss Reduction is an essential guide for utilities committed to detecting, managing, and limiting water loss.”
To order Water Loss Reduction, visit
For additional information about Water Loss Reduction, visit
For additional information about Bentley’s water loss solution, visit