地表水处理和总大肠菌群法规严重影响了水厂和配水系统运营商的角色和责任。本文讨论了新法规，并介绍了底特律供水和污水处理系统运行的案例研究，以说明合规性以及实现遵守新法规的问题。

The Surface Water Treatment and Total Coliform Regulations impacted heavily on the role and responsibilities of the water plant and the distribution system operator. This paper discusses the new regulations and presents case studies from operating the Detroit Water and Sewerage system to illustrate compliance as well as problems achieving compliance with the new rules.