A large proportion of the investment was used for the implementation of a sophisticated monitoring and maintenance system, which included the implementation of 300 district metered areas (DMAs), the installation of a large number of electronic data loggers, mechanical and electro magnetic flow meters and pressure control valves. 

The water supply and distribution network is monitored at a state-of-the-art Data Management Centre utilising the NRWManager Management System. This system integrates all the logged data, GIS and customer billing data for 24/7 monitoring of the NRW levels in all parts of the water supply and distribution network.

Scope of Work Summary:

• Implement GIS
• Implement Hydraulic Network Model 
• Establish 300 DMAs 
• Implement NRW Management System
• Install 650 Data Loggers

Achievements:

• Reduced the NRW from 47% to 29% equivalent to 49 MLD
• Reduced the NRW volume from 150 to 101 MLD
• Increased the Billed Metered Authorised Consumption from 176 to 239 MLD