Document 71weapJR3G3p0zDMN7xVMeK5g

e St.(LOCiTtONP Louis Mn SUSJUT ; March 30, :' aiPIBtnci : TO W. B. Panageorce WPAPA ` * H. S. Bergen - KEE?o H. L. Minckler - h.mi.'.c P. S. Park - PPAnK J. E. Springga te - JSPP.I Vie have been in cocanunication with a Dr. Hill ef the Ohio State Board of Health. He has found PCE, particularly Aroclor 1254, in samples of milk from at least three herds in Ohio. He has traced this contamination back to silage from three different siles. Dr. Hill reported concentrations of 0.2 ppm of PCB in the silage in the center of the silo and up to 20 ppm in the material next to the walls. He also stated that concentrations in the milk were between 0.1 per, and 0.6 ppm and that some of the milk had been destroyed'." The silos are concrete silos whose interior surfaces ware painted in 1967 using a formulation that contained 1254. I don't know if there was any other Aroclor in the formulation nor do we knew the coating manufacturer; although, this could be found out if important. The presence of PCI in the sillge came from flaking off ef the material and oessiblv from leaching eut during the silage storace. At oresent they will have te destroy about 150 tens f silage which is valued at about 130 per ton. As a rough guess, they consider there be 50 other silos involved in Ohio that were painted with the same formulation. They are also looking into the fat con tamination of the cows themselves. A_ll in all, this could ha suite a serious problem, having legal and publicity overtones. This brings us to a very serious point. '.Then are we going to tell our customers set to use any Aroclor in any paint formulation that contacts food, feed, or water for animals cr humans? I thlnk.it is very imeortant that this be dent. It say be that sere f the customers will assure theirs elves on the basis of non-extractability that a particular formulation might be safe but 1 think w@ should sake a blanket recom mendation against these uses. REE/In 1-' / \^f- P.. Emmet Kelly, M. D. IN li HIV, STR 029900 HARTOLDMON0027485