How is PCB transformer oil identified and safely disposed during decommissioning?

PCB transformer oil is identified by reviewing equipment history, nameplates, and sampling the oil for laboratory PCB analysis. If PCBs are detected above regulatory thresholds, the unit is classified as PCB contaminated and handled as hazardous waste. During decommissioning, crews use spill control, sealed containers, and dedicated pumps and hoses to avoid cross contamination. The oil is transported under manifest to licensed facilities for approved treatment, dechlorination, or high temperature destruction. Documentation, labeling, and chain of custody are required throughout.