本幻灯片概述了埃尔多拉多灌溉区全系统水资源审计的案例研究。这是AwwaRF项目#2928泄漏管理技术的一部分。项目范围包括两个阶段:标准IWA/AWWA建议的水平衡和审计，2005年9月收到的最终报告；以及泄漏检测和干预、区域计量区域（DMA）监测和分析的试点适用性，以及先进的压力管理技术。概述了系统输入容量（SIV），以及小型和大型仪表的表观损失和泄漏和/或破裂的实际损失。概述的其他主题包括:泄漏检测；经济泄漏水平（ELL）；EID的短期ELL；EID的中/长期ELL；以及绩效指标。

This slide presentation outlines a case study of a system-wide water audit at the El Dorado Irrigation District. It was part of AwwaRF Project #2928, Leakage Management Technologies. The scope of the project included two phases: standard IWA/AWWA recommended Water Balance and Audit, final report received September 2005; and, Leak Detection and Intervention, pilot testing applicability of district metered area (DMA) monitoring and analysis, and advanced pressure management technology. System input volume (SIV) is outlined, along with apparent losses from small and large meters and real losses from leaks and/or breaks. Further topics outlined include: leak detection; economic level of leakage (ELL); short-term ELL for EID; medium/long term ELL for EID; and, performance indicators.