Some of those who received piped water got it through illegal connections.
Edesur says 800,000 people using 210,000 illegal connections are getting free electricity.
There are also a number of illegal connections across the river.
The cause was attributed to the illegal electrical connections performed by workers of a private developer.
It is estimated that there could be another 900,000 illegal connections.
A large share of non-revenue water is due not to leakage, but to illegal connections.
This relatively high level of losses is mostly due to theft, fraud, and illegal connections.
The Governor said a massive program had been started to replace pipes and identify those people with illegal connections to the water system.
Water losses include illegal connections, some of which are used by the poor to serve their basic needs.
The remaining staff was encouraged to provide information about illegal connections and received incentive payments.