A $21,000 Water Bill in Idaho: Billing Error or a Real Leak? The Meter Test Settles It

In November 2026 a Glenns Ferry, Idaho homeowner received a water bill of about $21,000 for 9.4 million gallons, against a usual 4,000 gallons. The city said a software problem after the October readings processed some accounts incorrectly; 11 customers were impacted, the error was identified and corrected. Glenns Ferry is not in Nampa, and its water system is separate from the City of Nampa — but the question is the same for Nampa homeowners: the meter test settles whether the water actually flowed. Turn off taps, showers, washing machine, dishwasher and ice makers, note the reading and whether the leak indicator is moving, wait without using water, then recheck. Movement means water was used somewhere; no movement means it was not. Call the water provider first when the usage figure is impossible for your home, when the meter is still with everything off, or when neighbours report the same jump. Call for leak detection when the meter moves with everything off, when a running toilet has been ruled out, or when damp, a stain or a warm floor has appeared alongside the bill rise. Nampa Water Leak Detection Pros covers water leak detection for Nampa homes in ZIPs 83651, 83686 and 83687, with 24/7 call help. The service is water and plumbing leak detection only — not gas, not roof, not pool. Call (208) 544-9851, open 24/7. Website: https://waterleakdetectionnampaid.com/ — guide: https://waterleakdetectionnampaid.com/blog/21000-water-bill-billing-error-or-leak-nampa/