Question of the Week: PCB Waste Management
Q. We are doing some building maintenance and have removed or replaced a number of our fluorescent lighting fixtures. As a result, we have an assortment of lighting ballasts. I know that polychlorinated biphenyls (PCBs) are regulated under TSCA and not RCRA. Can I presume that our lighting ballasts contain less than 50 ppm PCBs? If not, how do I determine whether the ballasts contain PCBs?
A. As you indicated in your question, discarded electrical equipment containing PCBs are subject to the Toxic Substances Control Act (TSCA) regulations at 40 CFR Part 761. If this equipment exhibits the toxicity characteristic only, then it may be excluded from the Resource Conservation and Recovery Act (RCRA) hazardous waste regulations [40 CFR 261.8]. It is important to note that this is a Federal exclusion. Some states have hazardous waste management regulations that are more stringent than the Federal rules and may still regulate them under their RCRA hazardous waste rules. In these cases, the waste would be subject to both TSCA and State hazardous waste management regulations.
Under the TSCA rule, you cannot presume that your discarded lighting ballasts have less than 50 ppm PCBs. The PCB regulations do not create any assumptions about the PCB concentrations in fluorescent light ballasts. Fluorescent light ballasts are regulated for disposal under 40 CFR 761 when they contain > 50 ppm PCBs when disposed. Disposal options depend on whether the PCBs are found in an intact and non-leaking PCB small capacitor, a non-intact or leaking PCB small capacitor, or in the potting material [40 CFR 761.50(b)(2)].
If there is no label indicating that there are no PCBs (ballasts manufactured after July 1, 1979 were required by the EPA to be labeled “No PCBs”), the EPA has recommended two options. First, you could assume that the potting material contains PCBs at 50 ppm or greater and dispose of the ballast as PCB bulk product waste in accordance with 40 CFR 761.62. Alternatively, you could conduct a survey of the manufacturer and type of ballasts in use in the building and develop a random sampling plan for each manufacturer and type of ballast found and analyze the samples for PCBs. However, regardless of the results of the survey, you are responsible for the proper disposal of each ballast.
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