The United States Geological Survey document, “Estimated Use of Water in the United States in 1995,” states that, of the 40 billion gallons of water withdrawn each day by water utilities, only 34 billion gallons made it to the end-use customers. While 15% is not considered a ‘bad’ non-revenue water number, those 6 billion gallons represent a level of waste and lost revenue no water manager would feel comfortable with.

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