An average percentage range for unaccounted-for water in a fully metered system is which range?

An average percentage range for unaccounted-for water in a fully metered system is which range?

• A. 9 to 5%
• B. 6 to 10%
• C. 11 to 15%
• D. 16 to 20%

Answer: (C)

Unaccounted-for water is the portion of water produced that isn’t billed or sold, reflecting losses in the system plus any metering or billing gaps. In a fully metered system, you’ll still have some losses from leaks and minor metering inaccuracies, but metering helps keep these under control. The typical average range for UfW is in the low-teens, specifically around 11 to 15 percent. This range acknowledges that losses exist even with good measurement, but aren’t extreme. The 6 to 10 percent range suggests better-than-average performance and isn’t the standard average for most utilities, while the 16 to 20 percent range indicates substantially higher losses and is outside the normal average.

Unaccounted-for water is the portion of water produced that isn’t billed or sold, reflecting losses in the system plus any metering or billing gaps. In a fully metered system, you’ll still have some losses from leaks and minor metering inaccuracies, but metering helps keep these under control. The typical average range for UfW is in the low-teens, specifically around 11 to 15 percent. This range acknowledges that losses exist even with good measurement, but aren’t extreme. The 6 to 10 percent range suggests better-than-average performance and isn’t the standard average for most utilities, while the 16 to 20 percent range indicates substantially higher losses and is outside the normal average.