用水效率已被广泛描述为 包括需求侧管理（保护） 项目和激励）和供应方管理 （公共设施泄漏检测和维修计划） 以及水循环）。效率的逻辑是 探索了适用于所有这些实践的 提供了组织信息的框架 关于用水效率。 寻求规划、设计和实施成功的 水资源效率项目常常难以实现 理清定义效率的成本和收益，尤其是 关于效用的不同观点， 项目参与者和社会。除了提供 定义水资源效率和效率的实践方法 通过分析成本和收益，本文突出了实际应用 从研究项目演变而来的工具。包括5个参考文献、图表。

Water efficiency has been broadly described to include both demand-side management (conservation programs and incentives) and supply-side management (utility leak detection and repair programs and water recycling). The logic of efficiency that applies to all of these practices is explored and a framework is offered for organizing information about water-use efficiency. Utilities seeking to plan, design, and implement a successful water efficiency program have often struggled to sort out the costs and benefits that define efficiency, especially with regard to the varying perspectives of the utility, program participants, and society. In addition to providing a hands-on approach to defining water efficiency and analyzing costs and benefits, the article spotlights the practical tools that evolved from the research project. Includes 5 references, figures.