40 CFR §240.201-2

1. (a)Provision for storing, handling, and removing hazardous or excluded wastes inadvertently left at the facility should be considered in design.
2. (b)Examples of wastes which should be considered for exclusion from the facility include: Hazardous wastes, very large carcasses, automobile bodies, dewatered sludges from water treatment plants, and industrial process wastes.