"This fifth edition of M36 features detailed instructions on Version 6.0 of the AWWA Free Water Audit Software - released in 2020 - and updated guidance on the use of key performance indicators, instructions for water audits for wholesale water suppliers, and updated leakage and pressure management methods and technology. As in the third and fourth editions, the fifth edition explains the AWWA water audit methodology in a user-friendly manner and provides an overview of some of the best loss control techniques used to implement a sustainable non-revenue water (NRW) management program. Now, more than ever, water utility managers are being called upon to carefully evaluate inefficiencies in their water system and to take corrective actions to control excessive NRW. The methods contained in this manual will help them do it reliably"--