Published October 22, 2026
Research question
Unusual usage can come from a leak, a meter error, a change in occupancy, or irrigation. A single bill cannot tell which.
Method
Use at least three billing cycles. Record the meter reading, the billed usage, the occupancy, the maintenance check, and the repair date. Compare the same lot before and after the repair.
Comparison table
| Measure | Definition | Evidence | Limit |
|---|---|---|---|
| Event date | When the event occurred | System record | Missing dates |
| Cycle time | From request to completion | Log | Clock source |
| Completeness | Required fields present | Checklist | Self-report |
