This page helps prepare records for a utility inquiry or plumbing assessment. It does not calculate a bill, identify a hidden leak or promise savings.
Put comparable periods together
Keep the start and end dates, usage units and any indication that a reading was estimated or adjusted. Ask the utility to explain unfamiliar entries. Do not convert units or compare totals from unlike periods without preserving the original figures.
Add relevant household changes: guests, an absence, a newly installed appliance or known work. These are context, not automatic explanations. A careful record leaves room for a real leak while avoiding an unsupported conclusion from one bill.
Note visible plumbing changes separately
A continuously filling toilet, dripping faucet or water in an unusual area belongs on an observation list with its date. Do not multiply a guessed drip rate into a precise loss estimate. The provider needs to assess the actual condition, and the utility needs the actual account information.
EPA's Fix a Leak Week resource offers general leak awareness. It should not be used to claim that every billing increase comes from a fixture leak or that repairing one observed drip will resolve the entire account question.
Keep meter and monitor limits visible
Do not open utility equipment or enter an unsafe place to obtain a reading. Use the account tools or official guidance available for the actual system. If a private monitor supplies data, retain its measurement period and any known gaps rather than treating the chart as a complete record.
If the property is on a private well, household monitoring and a public water bill may not be comparable at all. Identify the source and what the available data actually measures before drawing a conclusion.
Send the right question to the right party
Ask the utility about readings, adjustments and account charges. Ask the plumbing provider about the observed fixture or system condition. If one party requests additional evidence, record precisely what is needed and why. The leak-repair notes help prepare a service request without turning a billing concern into a presumed concealed-pipe failure.