Globally, water lost from the drinking water supply networks through leakages amount to 346,000,000,000 liters per day!
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Globally, water lost from the drinking water supply networks through leakages amount to 346,000,000,000 liters per day!
If these losses were reduced by only 30%,
800 million people could be supplied with already treated water!
What do we mean when we talk about water loss?
Water loss is often referred to as non-revenue water (NRW) – water that is produced in a network but never reaches the consumer. This might be due to aging networks which haven’t been properly managed, metering inaccuracies, theft or unmetered authorised consumption, like water used from fire hydrants.
It’s not a problem restricted only to the developing world either – Montreal, for example, loses 40% of the water it produces (pdf).
But Louise Whiting from WaterAid was keen to make sure the word “lost” is properly defined. “Very often”, she said, “water is used but then returned to the system in virtually the same quantity”.
So when we speak of water loss in an industrial sense, we’re referring to that which is not returned to the system through natural processes?
Every day, about 91 billion gallons of drinking water are lost through leaks, according to the International Water Association.
The US Environmental Protection Agency reports that, on average, 14 percent of treated water in the United States leaks out. In some water systems, as much as 60% of water is lost.
Leaks can spring up anywhere along water’s piped journey from reservoirs or desalination centers to water mains to indoor plumbing.
It’s never been more critical to conserve water. The UN estimates 2.3 billion people already live in water-stressed countries and water use has been growing globally at more than twice the rate of population increase in the last century.
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