Source: https://www.greatamericaninsurancegroup.com/

Following a flight, an aircraft was moved into the hangar for the evening. Shortly after, the plane caught fire due to an electrical shortage. In order to put out the fire, the airport’s ARFF crew had to use large quantities of firefighting foam. The chemicals in the firefighting foam leaked into the groundwater through drainage systems, causing regulatory parties to investigate and require that environmental testing be performed. The airport was held liable for testing and clean-up costs. Read more.