Apparent water losses are typically caused by which of the following?

• A. Regular maintenance
• B. Seasonal rainfall
• C. Unknown leaks, inaccurate meters, unauthorized consumption
• D. High water pressure

Answer: (C)

Apparent losses come from how we measure and bill water, not from water actually leaking out of the pipes. They show up when water is produced but not properly accounted for in billing. This includes unknown leaks that the system can’t detect or measure, meters that misreport the flow, and unauthorized consumption that isn’t billed. Regular maintenance helps keep meters and billing accurate, while high water pressure and seasonal rainfall relate more to physical leakage or demand patterns rather than measurement errors.