本文讨论了美国环境保护局（USEPA）风险管理计划（RMP）法规和相关的职业安全与健康管理局（OSHA）过程安全管理（PSM）规则，该规则要求工业和私营水和废水处理厂处理危险化学品的综合管理系统。下表列出了水处理厂使用的几种常见化学品的美国环保局RMP和联邦OSHA PSM阈值。勘误表——表1（第18页）中给出的氯的阈值应为2500磅（1134千克），而不是1500磅（680千克）。包括6个参考文献，表1。

This article discusses the US Environmental Protection Agency (USEPA) risk management program (RMP) regulations and a related Occupational Safety and Health Administration (OSHA) Process Safety Management (PSM) rule that requires comprehensive management systems for the handling of hazardous chemicals by industry and privately operated water and wastewater treatment plants. A table lists the USEPA RMP and federal OSHA PSM thresholds for several common chemicals used at water treatment plants. Erratum -- The threshold value given in Table 1 (page 18) for chlorine should have been 2,500 lb (1,134 kg) and not 1,500 lb (680 kg). Includes 6 references, table.