What must be done if a spill occurs during aircraft refueling operations at O'Hare?

In the event of a spill during aircraft refueling operations, it is crucial to contact the appropriate disposal authority. This step ensures that the situation is managed according to environmental regulations and safety protocols. The appropriate disposal authority has the resources and expertise to handle hazardous materials safely, mitigating risks associated with spills, such as fire hazards or environmental contamination.

While it could seem logical to contact 911 for immediate emergencies, the specific nature of a fuel spill requires specialized response handling that goes beyond general emergency services. Similarly, contacting operation centers may help in internal reporting but does not address the spill's environmental management as effectively as involving the disposal authority directly. Therefore, the best course of action is to ensure the spill is managed by professionals trained to deal with such incidents.