Document Yr7wMLDzQZwa2m9Ozdd4dnm9O

cc: C. L. Bradford^ R. A. Garcia - 1010 October 8, 1971 Mr. Dave Krlcks Vacuum Foundry Manager Wisconsin Centrifugal yog E. St. Paul Waukesha, Wisconsin 53186 Dear Mr. Krlck: This letter confirms your telecon with Mr. Moore on October 7 con cerning your firm's use of Santovac 2 vacuum pump fluid. As 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 forma of bird, aquatic and animal life. Accordingly, It Is Important that PCBs be kept out of the food chain. 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, disposal, vaporization or otherwise. Some specific applications where these fluids should definitely not be used are In vacuum systems Involv ing food or food-related products, animal feeds, pharma ceutical products, packaging materials Involving any of such Items and buildings where any of these Items are manufactured 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 reoommended replacement product. Used Santovac 1 and 2 should be returned to Monsanto Company, W. 0. Krummrlch Plant, Sauget, Illinois 62201, Attentions Supervisor Dept. 246 for proper disposal. This service Is per formed at cost, which Is f0.03 per pound. Very truly yours. /pep R. E. Hatton Technical Manager Hydraulics and Lubricants MONS 094336