由于1986年对《安全饮用水法案》（SDWA）的修订，饮用水行业面临许多新的技术挑战。在这些挑战中，需要在不牺牲维持所需消毒水平的能力的情况下，满足不断增加的消毒副产物（DBP）限制。为了应对挑战，公用事业公司需要仔细规划并考虑长期的，而不仅仅是短期的，与越来越多的被识别的DPs相关的影响。本文重点讨论了四个步骤的前三个步骤，公用事业公司应考虑以满足短期。 长期和长期DBP法规。这四个步骤包括:了解问题；定义系统的位置；评估替代方案；灵活设计和建造。

As a result of the 1986 Amendments to the Safe Drinking Water Act (SDWA), the drinking water industry faces many new technical challenges. Among these challenges is the need to meet an increasing number of disinfection by-product (DBP) limits without sacrificing the ability to maintain required levels of disinfection. In order to meet the challenge, utilities will need to plan carefully and consider the long-term, not just the short-term, implications associated with the ever-increasing number of DBPs being identified. This paper focuses on the first three steps of a four-step process that utilities should consider in an effort to meet short-term and long-term DBP regulations. The four steps include: develop an understanding of the issues; define where the system stands; evaluate alternatives; and design and build with flexibility.