From the Document: "Every year, natural disasters, such as wildfires, floods, earthquakes, hurricanes, tornadoes, and winter storms, challenge American communities. [...] Natural disaster debris refers to the material and waste streams resulting from a natural disaster. Disaster debris often includes building materials, sediments, vegetative debris, and personal property. Large quantities of debris can make recovery efforts difficult by, for example, hindering emergency personnel, damaging or blocking access to necessary infrastructure, and posing threats to human health and the environment. Cleaning up this debris can be time-consuming and costly, extending the recovery from the disaster."
EPA 530-F-19-003; Environmental Protection Agency 530-F-19-003
United States Environmental Protection Agency: https://www.epa.gov/