TM99-10 Consolidation of aroclor 1016 and aroclor 1242 in lab schedules 1608 (NPDES organochlorine pesticides with individual PCB aroclors in water) and 1364(individual PCB aroclors in water)

This technical memorandum announces that the National Water Quality Laboratory (NWQL) will no longer report polychlorinated biphenyls (PCBs) in lab schedules 1364 and 1608 as either separate Aroclor 1016 or Aroclor 1242 equivalents. Instead, the NWQL will report PCBs identified as containing components of these two Aroclors as the new parameter Aroclor 1016/1242.