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California Department of <br />Toxic Substances Control • juty 1w2 <br />PCB <br />Handling, <br />Treatment, <br />and <br />DISpOSa� <br />Class cation <br />The Department of Toxic Substances Control (DISC) has <br />classified polychlorinated biphenyls (PCBs) as a hazardous <br />waste when the concentrations are equal to or greater than 5 <br />mg/l in liquids or when the total concentrations are equal to <br />or greater than 50 mg/kg in nonliquids (Title 22, California <br />Code of Regulations (CCR), §66261.24). The 5 mg/l and 50 <br />mg/kg figures can also be expressed as 5 ppm and 50 ppm, <br />respectively. When the total concentrations of PCBs are <br />equal to or greater than 5,000 ppm in a waste, DTSC then <br />regulates this waste as an Extremely Hazardous Waste (Title <br />22, CCR, §66261.113). <br />There are, however, situations in which waste wieh PCB <br />concentrations below 5 ppm are ftirther restricted or regulated <br />bY DTSC, the U.S. Environmental Protection Agency (U.S. <br />EPA), or other State regulations. In California, burning of <br />used oil that contains PCBs above their detection limit (>— 2 <br />ppm) can only be done at DTSC—authorized facilities that <br />have also met the Federal requirements for this type of <br />activity as outlined in Division 40 of the Code of Federal <br />Regulations (CFR), Part 761. Materials which contain any <br />detectable concentrations of PCBs are prohibited from being <br />released into sources of drinking water under Proposition 65 <br />guidelines (Health & Safety Code §252495 et seq.). Califor. <br />nia's Office of Environmental Health Hazard Assessment is <br />the lead agency concerning Proposition 65 regulations. <br />Information regarding the Proposition 65 regulations can be <br />obtained by calling (916) 445-6900. <br />