Document RJ7GEG2ppyg8wRJ56zzQrdq1B

May 31, 1972 Dr. James Lichtenberg , U. S. Environmental Protection Agency National Environmental Research Center Cincinnati, Ohio *15268 Dear Jim, I am sending under separate cover the sample of Aroclor 1016 you requested. I have enclosed a copy of Monsanto's analytical methodology for the determination of polychlorinated biphenyls which I hope you find useful. If I can be of further service, please let me know. Sincerely, VJBP: cc Enclosure W. B. Papageorge Manager ' Environmental Protection DSW 010335 ~n ;, STLCOPCB4001718