Document pa7g77ZGDxLwoxDdXMjK44vk

ees C. L. Bradford P. L. Slayton - 1650 October 12, 1971 Mr. Leo R. Calvlnl Varlan Vacuum Division NHC Operation 160 Charlemont Newton, Massachusetts 02161 Dear Mr. Calvlnlt This letter confirms a talecon between Mr. Moore of Monsanto and Mias Eleanor Olbson of Varlan Vacuum Division on October 11 con cerning Varlan*a use of Santovae 2 vacuus pump fluid. Aa Indicated on their labels, Santovae 1 and Santovae 2 contain polyahlorlnated biphenyls (PCBs) of various types. As you are aware, PCBs have increasingly cose under the scrutiny of various governmental agencies and aolentlfle laboratories. In some studies, certain PCBs have been fouftd to be persistent, an environmental contaminant and possibly Injurious to certain forms of bird, aquatic and animal life. Accordingly, It la Important that PCBs be kept out of the food chain. Ve want to remind your firm of the extraam cere that must be taken by Users of Santovae 1 and Santovae 2 fluids to prevent any entry Into the environment through spills, leakage, use, disposal, 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 produota, packaging materials Involving any of such items and buildings where any of these items are factored or stored. If your vacuum system involves any of the mentioned applications, or if your system la such that entry Into the environment can not be prevented, you should replace Santovae 1 and 2 with monPCB fluids immediately. Please contact your pump supplier for his recommended replacement product. Used Santovae 1 and 2 should be returned to Monsanto Company, V. 0. Krumarlch Plant, Sauget, Illinois 62201, Attention! Supervisor Dept. 246 for proper disposal. Ibis service la per formed at cost, which Is |0.03 per pound. Very truly yours, mons 092101 It. E. Hatton Technical Manager Hydraulics and Lubricants