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AWWA Water Loss (Water Audit) Program Checklist

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Helps a water utility complete a standardized AWWA water audit, validate input data, quantify apparent and real losses, and set economically justified loss-reduction targets.

AWWA M36AWWA Free Water Audit SoftwareState Water Loss Reporting Rules

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Audit Scope & Data Sources

  • Is the audit period defined and aligned to a full 12-month reporting year? *
  • Is volume-from-own-sources metered and, where possible, master-meter validated? *
  • Are all water imported and exported volumes accounted for? *
  • Are billed metered and billed unmetered consumption records compiled? *

Water Balance & Loss Components

  • Is authorized consumption (billed + unbilled) separated from water losses? *
  • Are apparent losses (metering inaccuracy, data errors, unauthorized use) quantified? *
  • Are real losses (leakage, overflows, main breaks) quantified? *
  • Reported non-revenue water percentage for the period: *

Data Validity & Grading

  • Is each audit input assigned a data-validity grade (1-10) per the AWWA method? *
  • Are the lowest-grade inputs identified as priorities for improvement? *
  • Has the audit been reviewed/validated by a qualified third party where required? *

Performance Indicators & Targets

  • Is the Infrastructure Leakage Index (ILI) calculated? *
  • Are apparent-loss and real-loss economic targets established? *
  • Is a leak detection / meter replacement / loss-control program funded and scheduled? *

Reporting & Follow-Up

  • Is the completed audit submitted to the state as required? *
  • Are year-over-year results trended to measure program effectiveness? *
  • Document data gaps and improvement actions: *

AWWA Water Loss (Water Audit) Program Checklist 체크리스트 전체 다운로드

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