萨斯卡通市位于加拿大中部平原，于2007年初竣工 利用内部员工进行IWA/AWWA水资源审计和AWWA水资源审计 免费软件。2007年夏天，该市保留了Veritec的服务 咨询公司将完成临时区域计量试点的实施 （DMA）以提供潜在可回收泄漏的详细概述 在系统内部。 该研究还包括完成成分分析，并结合 DMA实施提供了一个“自下而上”的实际损失评估，用于验证 “自上而下”的水资源审计。这些结果也被用来确定经济损失 水平（ELL）和长期减少水损失计划。 本文详细介绍了研究方法和结果，并给出了一个具体的例子 专注于“自下而上”的组件分析和临时DMA实现 实际损失计算。包括表格、数字。

The City of Saskatoon, located in the plains of central Canada, completed in early 2007 an IWA/AWWA water audit utilizing in-house staff and the AWWA Water Audit Freeware software. In the summer of 2007, the City retained the services of Veritec Consulting Inc. to complete the implementation of pilot temporary district metered areas (DMA) in order to provide a detailed overview of the potential recoverable leakage within the system. The study also included the completion of a component analysis which coupled with the DMA implementation provided a "bottom-up" real loss assessment used to validate the "top-down" water audit. The results were also utilized to establish the economic leakage level (ELL) and a long term water loss reduction program. This paper provides details of the study approach and results with a particular focus on the component analysis and temporary DMA implementation for the "bottom-up" real loss calculation. Includes tables, figures.