本文讨论了俄亥俄州西南部巴特勒县环境服务部（BCDES）制定的供水系统总体规划。服务领域一直在快速增长，BCDE面临着独特的运营和规划挑战。他们目前从两个不同的地区购买水 供应商，并受与各供应商的合同条件约束，包括 最低购买要求。有三个主要的电源连接点与 水供应商。未来的改进将至少增加两个主要供应 在BCDES系统中提供冗余并增强供应商能力的连接 能够通过分流输送峰值流量。讨论了需求预测、配电系统分析、优化方法和备选方案分析。 包括3个参考文献，表，图。

This paper discusses the Water System Master Plan developed by the Butler County Department of Environmental Services (BCDES) in southwestern Ohio. The service area has been experiencing rapid growth, and BCDES faced unique operational and planning challenges. They currently purchase water from two different regional suppliers and are governed by contractual conditions with each supplier, including minimum purchase requirements. There are three main supply connection points with the water suppliers. Future improvements will add at least two more major supply connections to provide redundancy in the BCDES system and to enhance the suppliers' ability to deliver peak flows through flow splitting. Demand projections, distribution system analysis, optimization approach, and alternatives analysis are discussed. Includes 3 references, table, figure.