Definition
Water Systems Infrastructure failure is an undesirable or unintended event, occurrence, or situation involving the city’s water infrastructure or the discontinuation or significant disruption of water services that could seriously compromise public safety. This infrastructure is public utility infrastructure and, if compromised, would result in a temporary loss of essential function and/or services.
Location and Extent of the Hazard
Miles of water, sewerage, and gas pipes, as well as a vast network of generators, transformers, and treatment and distribution facilities, means that water infrastructure failure can happen virtually anywhere in the City of New Orleans. Often these incidents are not limited to a small localized region but instead affect large areas of the City, with up to tens of thousands of people at a time.
Severity of Infrastructure Failure
The severity of infrastructure failure can range from very isolated occurrences with limited impacts on the City to large-scale events with catastrophic impacts on lives, property, and operations. Since all citizens and businesses are dependent on the public infrastructure, especially the provision of sewerage and water services, these are essential services, and failure is severe. When one or more of these independent, yet interrelated systems fail due to disaster or other cause, even for a short period of time, it can have devastating consequences. When the water or wastewater treatment systems in a community are inoperable, serious public health problems arise that must be addressed immediately to prevent outbreaks of disease. When storm drainage systems fail due to damage or an overload of capacity, serious flooding can occur.
Hazard Impacts
Impact on Life and Property
The direct and indirect effects of water systems failure are difficult to quantify. The loss of water utility, for example, does negatively affect businesses, homes, and critical facilities – with serious consequences from long-term outages. Hotels and restaurants, for example, may have to provide bottled water for guests and diners in the event of a water utility failure, and this can be extremely costly. However, the majority of infrastructure failures are limited in scale and do not present long-term impacts.