What must be reported regarding a fuel spill during refueling?

Reporting any fuel spill that leaves a sheen on the water is crucial because such spills indicate the presence of harmful substances that can have detrimental effects on the environment. A sheen on the water is often a sign that oil or fuel is contaminating the aquatic ecosystem, which can impact wildlife and water quality.

Environmental regulations require that these types of spills be reported to ensure that appropriate measures can be taken to manage the spill and mitigate its impact. Responsiveness to spills, especially those that can visibly affect the water surface, is essential for environmental protection and public safety.

In the context of other reporting thresholds, specifying only larger spills or dismissing smaller ones might lead to significant environmental harm if smaller but still impactful spills are not monitored and reported. Therefore, the focus on any spill that results in a sheen provides a comprehensive approach to spill management and environmental stewardship.