Resources
The AWWA Free Water Audit Software
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The AWWA Free Water Audit Software (v6.1 2025) is the industry standard tool for conducting a water loss audit and using the results to guide a program for cost-effective water loss control and revenue recovery. The original version was released nearly 15 years ago, and the current version is now used throughout North America and in other countries around the world.
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Key features of the water loss audit version 6.1 include an Interactive Data Grading feature, a Performance Indicator Dashboard providing more visibility into how well you are doing and how you can improve, and overall, a streamlined user experience.
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Download the AWWA Free Water Audit Software (V6.1)
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AWWA M36​
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Preparing for your Water Audit Validation
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It's time to schedule a remote session to review your completed 2024 water loss audits! Here are some helpful resources to assist with preparing your documents.
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How to Prepare - Guidance Document
Examples of Supporting Documentation
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Direct Technical Assistance
This program offers the following water loss control direct technical assistance. To qualify, utilities must complete a CY2024 water loss audit and review it with the FWLP team.
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Supply Meter Testing: Also known as production flowmeter verification, is the process of confirming the measurement accuracy of devices that handle bulk water volumes, including water from a utility's own sources, imported, and exported water. Our team will work with participants to determine the appropriate supply meter test method and schedule to conduct the test.
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Billing Data Analysis: Often performed as a data-mining analysis, involves extracting and reviewing a utility's customer consumption database, typically in a digital format and identifies anomalies, suspicious billing patterns, or other inconsistencies. Our team will consult participants who have adequate consumption data to review their raw billing data to the account level.
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Customer Meter Test Analysis: Quantifies the volume of under-registered water due to customer metering inaccuracies (CMI), which improves the validity of the water audit and helps identify individual meters or cohorts that require repair or replacement to reduce apparent losses. Our team will work with participants who have adequate customer meter test records for analysis and to inform customer metering inaccuracies in the water audit.
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Customer Meter Test Design: Crucial for accurately assessing the collective precision of a utility's meters, aiming to quantify apparent losses and pinpoint individual units needing repair or replacement. Our team will request meter inventory data to help prioritize a customer meter testing program.
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Real Loss Component Analysis (RLCA): A detailed method that analyzes the occurrence of various leakage components within a water distribution system to help identify cost-effective leakage control strategies and frequencies. Our team will request break data from participating utilities to conduct the RLCA. This will help the utility understand what real loss intervention strategies they should consider.
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Leak Detection: A proactive process aimed at identifying and pinpointing hidden, unreported leaks within a water distribution system, including on customer service lines, before they become visible and disruptive. Our team will assess participant's level of real losses and reliability in their water audit data to determine if a leak detection survey is appropriate. If it is, then we will work with your utility to identify a portion of your system to survey.
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