Improvement of the water distribution infrastructures and reduction of non-revenue water

Strongly supported by the french government, a complete program of research, reduction and control of non-revenue water volumes was established for the city of Kragujevac (150,000 inhabitants, 480 km of distribution network) along with a preparatory mission for the city of Belgrade.

Both cities have water supply problems and periods of water shortage. Those proposals were in perfect accordance with the expectations of local decision makers to optimize the technical management of their existing facilities in order to conserve and improve the water distribution of water without investing heavily in new production equipment.

This project provides a technical identification of needs for projects financed by multilateral donors, particularly European Union.

Project execution dates

from November 2001 to August 2002
Localization

Kragujevac, Belgrade / Serbia
Expertise domains
- Operational assistance
- Technical optimization

Description of the WMI service

Verification, analysis and updating existing plans of distribution systems
Supplying of specialized equipment for flow/pressure measurements, audit of tanks and leak detection
General measurements campaigns in order to audit and diagnosis systems working
Establishing priorities of actions in identified and tested areas
Setting performance targets to be achieved with the water utility for the duration of the project
Definition of a strategy to reduce and control the volume of non-revenue water
Definition of an active strategy for monitoring physical losses (ALC)
Application of all the strategies identified in several areas
Leaks repairs campaign in some pilot areas
Analysis of demand in selected areas
Verification of metering systems and consumed volumes
Definition and order of hydraulic equipment for emergency repairs
Supervision of emergency repairs
Systematic control and evaluation of the improvements
Creation of a team “leak detection and maintenance systems”
Theoretical and continuous on-site training and technology transfer

Key Results

1,22

leaks per km ("Linear Leakage Indexe")
94 %

efficiency of leak detection
35 %

minimum night flow reduction
15 %

minimum night flow reduction

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