消费者对饮用水质量的了解变得越来越重要。处理水平和残留消毒剂、混合水或混合水的质量以及污染物在整个分配系统中的可能扩散，都是运营、设计、科学人员和管理人员感兴趣的问题。了解系统水质的一个相对较新的工具是配电系统的水质建模。水质建模是加拿大一个大型区域市政当局进行的全系统消毒研究的重要内容。本研究的目的是检查当前的水力、水质和处理实践，并在建模、预测、系统集成和开发的基础上，推荐合适的全系统消毒策略，将该地区带入未来20年。

Knowledge of the quality of drinking water reaching consumers is becoming increasingly important. Levels of treatment and residual disinfectant, the quality of blended or mixed waters and the likely spread of contaminants across a distribution system are all of interest to operations, design, scientific staff and management. A relatively new tool in understanding system water quality is water quality modeling of the distribution system. Water quality modeling was an important element in a system-wide disinfection study for a large regional municipality in Canada. The purpose of this study was to examine the current hydraulic, water quality and treatment practices and recommend a suitable system-wide disinfection strategy based on modeling, prediction, system integration and development that would take the region well into the next two decades.