美国大约8000个供水系统已经建成，为3300或更多人口提供服务 他们的环境保护局要求进行脆弱性评估（VA）和应急响应计划（ERP）。许多废水 系统自愿进行VAs并准备EOP。现在怎么办？水和废水系统是什么 还需要做些什么来解决他们的安全和备灾需求和弱点？本文介绍了 水和废水系统仍然需要确保其系统的安全性 以及为可能发生的安全和灾难事件做好准备。

The approximately 8,000 water systems in the United States serving populations of 3,300 or more have completed their EPA-required Vulnerability Assessments (VA) and Emergency Response Plans (ERP). Many wastewater systems have voluntarily conducted VAs and prepared EOPs. Now what? What do water and wastewater systems still need to do to address their security and disaster preparedness needs and weaknesses? This paper presents the top things that water and wastewater systems still need for the security of their systems and preparedness for possible security and disaster incidents.