Document k9v37Jmozrmz8RnanO62R40En

cc: C. L. Bradford R. A. Oarcla - 1010 October 11, 1971 Hr. William P. Hindi Bechtel Corporation P. 0. Box 173 Delta, Pa. 1731* Dear Mr. Hindi#t This letter eonfirms your telecon of October 6 with Mr. Moore concerning 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 com 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 fIra of the extreme oare 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, vaporisation or otherwise. Some specific applications where these fluids abould definitely not be used ere 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 factured or stored. If your vacuum system involves any ef the mentioned applica tions, or If your system is such that entry into the environment cannot be prevented, you should replace Santovac 1 and 2 with non-PCB fluids immediately. Please contact your pump supplier for his recommended replacement product. DSW 017861 STLCOPCB4004406 Mr. William F. Hlndle October 11, 1471 Page Two Used Santovac 1 and 2 should be returned to Monsanto Company, W. 0. Krumrurlch Plant, Sauget, Illinois 62201, Attentions Supervisor Dept. 246 for proper disposal. This service Is performed at coat, which Is $0.03 per pound. Very truly yours. R. K. Hatton Technical Manager Hydraulics and Lubricants /pep cci Mr. Ed Farnhon - Bechtel Corporation OSW 017862 STLCOPCB4004407