Zone Establishment

• To prepare the network drawings and identified potential area to be sectored.

• To carryout the establishment of NRW zones such as:-

   -  Pressure & Flow Survey

   -  Zero Pressure Test

   -  Identified meter location

   -  Carryout N1 and N2 Step Test

•  Water Balance Analysis & Determined Leakage level

•  Leak detection & Repair

•  Pipe & Communication Replacement

•  Final Measurement NRW level

 Mapping

• Confirmation the accuracy of the pipe route, location of valves, underground hydrant etc

• Data Collection

• Digitized base map in mapping software

• GPS Survey

• Network Information System Database

• Confirmation on Information from the base map such as road, street, house lot numbers, building, name and etc

• Site investigation & verification

Monitoring & Maintenance 

• Monitoring Progress

• Download Pressure & Flow

• Plan routine zones maintenance (Meter, PRV, Logger etc)

• Carry out analysis on minimum night flow

• Zones Pressure

• Plan and prioritizing NRW Intervention level

• Repair on Zones with higher leakage level