Heavy metal sludges are likely to be hazardous wastes. Reference Environmental Regulations in the Resources section for more information. This section lists companies that buy or accept industrial lubricants. Most companies that handle used motor oil will also handle uncontaminated industrial lubricants. Motor oil is listed under the Motor Vehicle Items section.
Industrial lubricants are potential hazardous wastes.
A hazardous waste determination should be made on any waste industrial lubricants. If they are determined to be hazardous, these lubricants must be managed as hazardous waste. All other waste lubricants should be managed as solid waste. If NR 590 applies to the lubricants and they are recycled, the lubricants are exempted from many of the solid and hazardous waste rule agreements. Additional regulations apply to waste lubricants that contain PCBs or CFCs.