| http://www.w3.org/ns/prov#value | - PCBs, which are mainly found in transformers and capacitors manufactured prior to 1977, were determined by the U.S. Environmental Protection Agen-cy to be hazardous waste and banned from manufacturing. ???There was a site in North Carolina [Carolina Transfor-mer/Faytranco] that LCUB had sent some transformers to [for reconditioning] and it has been determined there was some contamination at that p
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