Our crew is trained to clean up biohazardous waste such as oil spills, body fluids, sewage backups, toilet overflows and toxic chemicals. In this photo, crew chief Davi is in protective gear cleaning up black water flooding. If your toilet overflows or you have a septic system back up, the water may contain bacteria and pathogens that are harmful to your health. Don't take a chance trying to clean it up yourself. Black water damage is usually covered by homeowner's insurance and we will work with your provider.