- Hazardous waste collection and disposal (7)
- Acid waste, collection and disposal (2)
- Chemical detoxification (1)
- Refuse collection and disposal services (1)
- Garbage: collecting, destroying, and processing (5)
- Liquid waste, collection and disposal (3)
- Nonhazardous waste disposal sites (2)
- Sanitary landfill operation (1)
- Incinerator operation (1)
- Medical waste disposal (5)
- Recycling, waste materials (25)
