输水干管施工、更新和维修是例行的供水设施活动。主要休息时间是 常见，尤其适用于从秋季开始出现交替冻融循环的气候条件下的公用事业 春天来了。众所周知，主要断裂会导致一系列水质和水量问题， 包括故障事件期间外部化学和生物污染物的侵入 以及在施工、维修和重新调试过程中。自来水公司 接收与故障事件相关的所有客户投诉，包括 压力、过度浑浊、颜色、味道和气味，或供水服务完全中断。当地人 卫生当局可能会，也可能不会收到水务设施关于故障或事故的通知 后果。暴露事件的潜在公共健康后果通常仍然存在 尚未解决。水务设施和公共卫生专业人员面临的一个难题是水资源的水平和类型 通知和行动需要最好地维护市政供水基础设施，同时确保 保护公众健康免受故障事件的所有后果。 基础设施故障事件可能会导致受影响的当地居民暴露的可能性增加 故障以及系统故障导致的瞬态污染物 压力这种接触可能导致水传播疾病的临床或亚临床表现 如果没有采取及时和充分的预防措施，在局部或全部暴露人群中。 在没有公共卫生通知的情况下，局部暴发可能仍然未被发现，但仍会造成严重后果 即使在 病原体和可能的暴露途径仍然是个谜。还有可能是公共的 关于水质问题或供水后果的健康监管问题 因为受影响的用户可能包括私人用户和公共设施的短缺 客户通常由故障电源供电。 位于加拿大艾伯塔省埃德蒙顿的首都卫生地区卫生局，以及 区域公用事业用水客户群，由45家独立的中小型企业组成 水务公司和EPCOR正积极致力于开发和实施联合项目 重大水基础设施故障或事故通知的机构标准和协议 事件，尤其是在社区已知的敏感区域，如医院、学校、长期 护理设施等。这包括开发一个联合行动的合作框架 制定政策和决策，以确定最适当的评估和应对措施 故障事件，包括联合机构响应（如果需要）。包括21篇参考文献。

Water main construction, renewal and repair are routine water utility activities. Main breaks are common, especially for utilities in climates with alternating freeze-thaw cycles occurring from fall to spring. Main breaks have been known to cause a range of water quality and quantity issues, including intrusion of external chemical and biological contaminants during the failure event, as well as during construction, repair and re-commissioning processes. The water utility typically receives all customer complaints associated with the failure event, which can include loss of pressure, excess turbidity, color, taste and odor, or total interruption of water service. The local health authority may, or may not, receive water utility notification of the failure event or consequences. Potential public health consequences from the exposure event often remain unresolved. One dilemma for water utilities and public health professionals is the level and type of notification and actions needed to best maintain municipal water infrastructure, while ensuring protection of the public's health from all consequences of the failure event. An infrastructure failure event can result in an elevated exposure potential for the affected local neighborhood to transient contaminants introduced by the failure, as well as through loss of system pressure. This exposure may result in clinical, or sub-clinical, manifestations of waterborne illness in some, or all, of a locally exposed population if timely and adequate precautions are not taken. Without public health notification, localized outbreaks may remain undetected but still inflict a burden on the public health care system for treatment of waterborne disease even when the etiologic agent and possible route(s) of exposure remain a mystery. There may also be public health regulatory issues regarding consequences of water quality issues, or water supply disruptions/shortages for affected users, as users may include private and institutional utility customers normally supplied by the failed mains. Capital Health Regional Health Authority, in Edmonton, Alberta, Canada, together with the Regional Water Customer Group of utilities, comprised of 45 independent small to medium sized water utilities, and EPCOR are actively working towards developing and implementing joint agency criteria and protocols for notification of significant water infrastructure failures or incidents, especially in known sensitive areas of the community such as hospitals, schools, longterm care facilities, and others. This includes development of a collaborative framework for joint policy and decision making to determine the most appropriate level of assessment and response to the failure event, including joint agency response if required. Includes 21 references.