Document r991EgMZRLDQ0Y64oarvzKQa

cc: C. L. Bradford R. A. Oarlca - 1010 October 18, 1971 Mr. Bill Wright National Lead Company of Ohio P. 0. Box 391&G Cincinnati, Ohio 45239 Dear Mr. Wright 1 Thte letter confirms your telecon of October 18 with Mr. Moore concerning your firm's uae of Santovac 2 vacuum pump fluid. Aa Indicated on their labels, Santovac 1 and Santovac 2 contain polychlorinated biphenyls (PCBs) of various types. As you are aware, PCBs have Increasingly come under the scrutiny of various governmental agencies and scientific laboratories. In some studies, certain PCBs have been found to be persistent, an environmental contaminant and possibly Injurious to certain rorms of bird, aquatic and animal life. Accordingly, It Is Important that PCBs be kept out of the food ohaln. We want to remind your firm of the extreme care that must be taken by users of Santovac 1 and Santovac 2 fluids to prevent any entry Into the environment through spills, leakage, use, dlspooal, vaporisation or otherwise. Some specific applications where these fluids should definitely not be used are In vacuum systems Involving food or food-related products, animal feeds, pharmaceutical products, packaging materials involving any of such Items and buildings where any of these items are manu factured or stored. If your vacuum system involves any of the mentioned applications, or If your system Is such that entry Into the environment can not be prevented, you should replace Santovac 1 and 2 with nonPCB fluids immediately. Please contact your pump supplier for his recommended replacement product. Used Santovao 1 and 2 should be returned to Monsanto Company, W. 0. Krummrlch Plant, Sauget, Illinois 62201, Attentloni Supervisor Dept. 246 for proper disposal. This servlca la per formed at coat, which la *0.03 per pound. MOMS 092U3 Mr. B1U Wright October lfa, 1V71 Page Two Any unused fluid can be returned to the following address: Monsanto Company, Queeny Plant, 100 Lafayette Avenue, St. Louis, Missouri, 6^101, Attention: John Kucsynskl, Building 22. Very truly yours. /pep R. . Hatton Technical Manager Hydraulics and Lubricants MQNS 09ili4