What is the correct method for disposing of hydraulic fluid contaminated with PCBs (polychlorinated biphenyls)?

Hydraulic fluid contaminated with PCBs (polychlorinated biphenyls) must be disposed of according to strict regulations outlined by the EPA (Environmental Protection Agency) under the Toxic Substances Control Act (TSCA). The correct method involves containment, labeling, and disposal at a permitted hazardous waste disposal facility that is specifically authorized to handle PCB waste. First, the contaminated fluid must be contained in sealed, leak-proof containers that are compatible with the fluid and PCBs. The containers must be clearly labeled with the words 'Caution: Contains PCBs,' the date of removal, and any other information required by federal, state, or local regulations. It is crucial to document the concentration of PCBs in the fluid through laboratory analysis, as this determines the specific disposal requirements. The waste must then be transported by a licensed hazardous waste transporter to a permitted disposal facility. The disposal facility will typically use incineration or chemical treatment methods approved by the EPA to destroy the PCBs. Under no circumstances should PCB-contaminated hydraulic fluid be disposed of through conventional means, such as dumping, pouring down drains, or sending to a regular landfill. Such disposal methods are illegal and pose a significant environmental and health hazard due to the persistence and toxicity of PCBs. Accurate record-keeping and documentation are essential throughout the entire disposal process to demonstrate compliance with regulations. For example, a manifest document tracks the waste from its point of origin to its final disposal location, ensuring proper handling and accountability.