Document vBXaGvN1xRDZe33pp7Rv57ma6

r cc: C. L. Brad fordy" September 30, 1971 Nr. Sd la trait* Carpenter Technology Corporation P. oT Box 66s Reading, Pennsylvania 19603 Daar Nr. Kstrakai This lattar confirms your talscon with Nr. Noors concerning Carpenter's uaa of Santovao 3 vacuum pump fluid. Aa Indicated on thalr labals, Santovao 1 and Santovao 2 contain polychlorinated biphenyls (PCBa) of various typas. As you are aware, pCBs have increasingly aoma under the scrutiny of various governmental agsncles and selentlflo laboratories. In soma studies, certain FOBS have been found 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 tha food chain. Wo vent to remind your firm of the extrema care that must be taken by users of Santovao 1 and Santovao 2 fluids to prevent any entry Into the envlronaant through spills, leakage, uaa, disposal, vaporisation or otherwise. Soma specIfla applications where these flulda should definitely not be used are In vaeuum systems Involving food or food-related products, animal feeds, pharmaceutical produeta, paokaglng materials involving any or auoh items and buildings whare any of these items are manu factured or stored. If your vacuum ays tom Involves any of tha mentioned applloatlona, or if your system Is such that entry Into the environment can not be prevented, you should replace Santovao 1 and 2 with nonPCB fluids Immediately. Please 0ontact your pump supplier for his recommended replacement product. Used Santovao 1 and 2 should be returned to Nonsanto company, W. a. Krummrloh Plant, Sauget, Illinois 62901, Attentloni Supervisor Dept, 246 for proper disposal. This service Is per formed at cost, which la $0.03 per pound. Vary truly yours. R. I. Hatton Technical Manager MONS 094143