历史上，水质建模仅限于大型骨架水 由于成本、数据需求和建模软件，配电系统 局限性这不再是案例研究中说明的情况 这里讨论。Freese和Nichols，Inc.进行了水力和水质测试 德克萨斯州布朗伍德市（人口20000）建模，以确定 适当的系统改进。该市部分地区的水资源开发 由于水管线腐蚀，配电系统的水质很差 导致余氯损失。这项研究的目的是 找出这些问题领域，制定资本改善计划，以改善 整个配水系统的水质。本文描述了 为小型河流进行水质建模所涉及的步骤和约束条件 城市这些步骤包括现场测试、模型校准、液压和水处理 质量建模、资本改善计划制定、验证和评估 操作测试。包括3个参考文献、图表。

Historically, water quality modeling has been limited to large skeletonized water distribution systems due to cost, data requirements and modeling software limitations. This is no longer the case as illustrated in the case study discussed here. Freese and Nichols, Inc. conducted hydraulic and water quality modeling for the City of Brownwood, Texas (population 20,000) to determine appropriate system improvements. Older developed parts of the City's water distribution system had experienced poor water quality from water line corrosion resulting in a loss in chlorine residual. The purpose of the study was to pinpoint these problem areas and devise a capital improvement program to improve water quality throughout the water distribution system. This paper describes the steps and constraints involved in conducting water quality modeling for a small city. These steps included field testing, model calibration, hydraulic and water quality modeling, capital improvement plan development, and verification and operation testing. Includes 3 references, figures.