本文回顾了英国大型私营供水公司Severn Trent Water在建立和应用其配水系统的基于计算机的水质网络模型方面的工作。这项工作涉及建立几个不同规模、详细程度和水源水质的系统氯衰变模型。该公司正在将这些模型应用于优化氯化策略的设计中，以提高客户满意度，同时确保有效消毒剂残留的维护。本文还举例说明了其他水质相关网络模型——包括水龄模型、物质追踪模型和水源混合模型——如何在公司内部作为分销管理的决策支持工具得到越来越多的应用。 包括17个参考文献、图表。

This article reviews the work of Severn Trent Water, a large private-sector water utility in the United Kingdom, in building and applying computer-based water quality network models of its distribution systems. This work has involved building several chlorine decay models of systems of differing size, level of detail, and quality of source water. The firm is applying these models in the design of optimized chlorination strategies to improve customer satisfaction while ensuring the maintenance of effective disinfectant residuals. The article also provides several examples of how other water quality related network models--including models of water age, substance tracking, and source blending--are growing in application within the company as decision support tools for distribution management. Includes 17 references, figures.