水管理模型（WATMAN）为解决供水和处理问题提供了一种评估传统和新水处理技术经济性的方法。WATMAN最初是为了解决适用于服务于2万人以上的供水系统的成本函数而开发的，现已扩展应用于服务于100至1万人口的小型供水系统。为了证明WATMAN的有效性，本文给出了两个假设案例和两个实际情况，其中模型选择了最经济的首选供水方案。WATMAN分析的小型水系统的单元工艺和技术包括区域化、替代水源、额外的常规处理、成套装置、双水系统、点- 瓶装水的使用、处理和分配。包括20个参考文献、表格和图表。

The WATer MANagement model (WATMAN) provides a method for evaluating the economics of conventional and new water treatment technologies for solving water supply and treatment problems. Initially developed to address the cost functions applicable to water systems serving more than 20,000 persons, WATMAN has been expanded for application to small water systems serving populations of 100 to 10,000. To demonstrate the effectiveness of WATMAN, this article presents two hypothetical cases and two actual situations in which the model selects the most economical of preferred water supply options. Unit processes and technologies analyzed by WATMAN for small water systems include regionalization, alternative water sources, additional conventional treatment, package plants, dual water systems, point-of-use treatment, and distribution of bottled water. Includes 20 references, tables, figures.