NRW

What is the term of NRW?
Non-Revenue Water (NRW) = “Net Production” - “Revenue Water”
The difference between the volumes of water delivered in to a Network and billed authorized consumption

How can create a NRW?
Real Losses
- Distribution main Leaks (Visible/Invisible/Un reported)
- Transmission main Losses (Visible/Invisible/Un reported)
- Reservoirs Leakage & Over Flows.

Main Leak	Minor Leak

Apparent Losses
- Production metering in accuracies
- Customer metering inaccuracies
- Unbilled authorized consumption
- Illegal Connections
- Administrative Errors

How to reduce the NRW?
- Reduction of Real losses and Apparent Losses.
- Mainly Repairing of any kind of Leaks with in the minimum time duration
- Using Good effective preventive maintenance programme.
- Water balancing work at DMA systems.

Transfer the NRW at Massages to Authorized officers
- If you see the any kind of Water Leaks Please Call 1939 using any phone. (this is a free of charge call)

If you are living at Dehiwala, Moratuwa or Kalutara District, If can’t achieve 1939 Free Call Number,
Please Call Hot Line