IWA/AWWA Water Audit

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IWA/AWWA Water Balance & Audit

Flowmetrix Technical Services leads the municipal water industry conducting detailed IWA/AWWA M36 water balances or complete audits for small-medium-to large utilities’. Flowmetrix draws specific expertise ranging from flow meter calibrations to leak detection to water distributions services. Using our expertise, allows Flowmetrix to leverage our intimate skillset within a water distribution utility to best suit the outcome of the balance or audit.

Leading the direction of the balance/audit with all key stakeholders involved will allow Flowmetrix to:

FAQ

What is the difference between a Balance and an Audit?

A Balance is a report outlining all components of a water system accounting for 100% of the water used after production, by means of operational use, theft and inaccuracies, demand and real losses.

An Audit is reviewing the information obtained that forms the balance  providing clarity of numbers providing 95% confidence against each component in the balance.  This process ensures the best numbers are presented to complete the balance addressing priorities to increase revenue and reduce losses while becoming a more efficient operation.

What are the main categories that make up an IWA/AWWA Balance?

Supply Input Volume, Authorized Consumption, Water Losses, Revenue Water and Non-revenue Water.

What are the sub-categories that make up an IWA/AWWA Balance?

Billed Authorized Consumption, Un-billed Authorized Consumption, Apparent Losses and Real Losses.

Definitions

BACM/UM Billed Authorized Consumption (metered/un-metered),
A thorough lag-analysis is performed on all individual accounts to match the supply cycle. Individual meter consumption throughout the audit period is reviewed; outlining anomalies, perform corrections based on ledger.

UBAC Unbilled Authorized Consumption,
Flowmetrix standard UBAC tool based on the AWWA M36 Standard is used to estimate all un-metered water use by the utility.

UAC Unauthorized Consumption,
Utilities’ process for finding and accounting is evaluated against the AWWA/IWA standards. An in-house estimation technique based on Canadian utilities’ is used.

AL Apparent Losses,
Based on the utilities’ customer meters, readings accounts, and billing processes, a tailored approach to estimating potential apparent losses is developed. A ROI is developed to identify the benefits to undertake a more frequent meter repair, replacement, and/or calibration program.

AL Apparent Losses,
Based on the utilities’ customer meters, readings accounts, and billing processes, a tailored approach to estimating potential apparent losses is developed. A ROI is developed to identify the benefits to undertake a more frequent meter repair, replacement, and/or calibration program.

CARL Current Annual Real Loss
All leak loss components are analyzed to assist in the return on investments on conducting best management active leakage control programs.

ILI/KPI Infrastructure Leakage Index/Key Performance Indicators
AWWA/IWA standards for setting ILI targets are used to provide utilities’ specific recommendations. Based on budgetary restrictions, suitable KPIs will be set for the utilities’ short/long-term water loss management targets.

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