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Enhanced Tabletop Exercise
Scenario 8
Interdependency
Natural Disaster

As discussed in the Response Protocol Toolbox, the threat warning, or the occurrence or discovery that indicates a potential contamination threat that triggers an evaluation of the threat, can come from several sources. In this scenario, the threat warning originates from the occurrence of a natural disaster (a weather phenomena) that will affect utility operations.

In this scenario, a March storm causes severe wind and flooding damage within Zenith City. The storm cripples communication and transportation lines, making it difficult for the water utility to disseminate information to the public and to receive needed water treatment chemicals. In addition, a water main break affects a critical customer. The wastewater flow to the sewage treatment plant, greatly increased by stormwater flow, begins to exceed the capacity of the plant. The exercise participants must establish alternate communications, potable water supplies and alternate ways to receive needed treatment chemicals.

The following are some useful links to flood and disaster information:

Floods
(Source: Centers for Disease Control and Prevention, Emergency Preparedness & Response)

Hurricane Preparation & Recovery (Source: U.S. Environmental Protection Agency)

Wind & Flood - Prevention Techniques for Rebuilding
(Source: Federal Emergency Management Agency, Hazards Information)

Fact Sheets on Natural Disaster Recovery: Flood Cleanup
(Source: Department of Labor, Occupational Safety & Health Administration)

Article: NIOSH Warns of Hazards of Flood Cleanup Work
(Source: Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health)