Preparation of a program for non-revenue water reduction in 3 priority townships

The project aims establishing a comprehensive action plan for reducing the non-revenue water factor in Yangon City.
It is based on surveys and measurements done in 3 townships located downtown supposed to be the more affected by non-revenue water.
It includes commercial and technical aspects of the non-revenue water reduction strategy for a pilot zone representing:

394 km of network
50,719 domestic customers
676,019 persons

Project execution dates

from May 2014 to May 2015
Localization

Yangon / Myanmar
Expertise domains
- Commercial optimization
- Operational assistance
- Technical optimization

Description of the WMI service

Construction of one rudimentary domestic meters test bench (DN 15 & DN 20 mm)
Domestic meters accuracy assessment (different positions) for 12 meters DN 20 mm
Consumptions profiles (9 domestic and 19 non-domestic)
Pressure monitoring program in 3 townships (46 pressure measurements on hydrants)
Construction of 6 measurement chambers
Flow/pressure measurements during 10 days in one township (10 simultaneous measurement points)
3 ultrasonic flowmeters
7 in-pipe insertion electromagnetic flowmeters
Flow measurements during at least 4 days on 7 tube wells (ultrasonic flowmeter)
Hydraulic modeling of the 3 townships (394 km network length)
Pressure measurements during at least 4 days on 13 pumping stations (modelling)
Detecting and locating physical leakages using helium gas tracking method

Key Results

Non-revenue water reduction action plan established
Preliminary water balance established with non-revenue water at 75% (including more than 85% of commercial losses)
GIS and preliminary hydraulic model created for the project area
Rudimentary domestic test bench installed
YCDC staff trained for network optimization

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