Document 3Qz5xkOyzv1QwDEjOowoVqaLa

Wc i Destroy [ JT G W H Hi MNJ' REK RA M : ,E P VI I' - 1 bcc: D. F. SMlfch - DoIHT December 5, 1963 Itr. Oeorgo Kellis Sinclair Refining Conany 600 fifth Avenue lfew Yorlt, New York Dear Hr. Kellis1 Our New York Office hoe asked me to forward, in writing, the comments concerning Ifydraul AC which were relayed to you by telephone recently; The problem, as it was described to me, involved the uso of air from compressors lubricated with Pydrsul AC to move potable water. I am not sure whether your question indicated that. In this application, you had already noted tastes and odors in the water or whether or not you were concerned about tho potential of such a problem. In limited tests which we have conducted analyzing the air streams from a compressor using Pydraul AC, we found no detectable levels of vapor of the lubricant. In this particular case, with this particular conpreoaor and the conditions under which it was operating, we felt assured that no lubricant was being carried along with the com pressed air streenu It la conceivable that with other compressors operating at different tenperatures or with different degrees of wear of parts of the compressor some minute amounts of the lubricant could be present in tho compressed air. Because of this possibility, we have already recommended that if the compressed air is to be used for industrial air-supplied masks or other breathing equipment, a filter should be incorporated in tho line to remove any vapors or other foreign matter. We would suggest that similar precautions be token regardless of tho type of lubricant--synthetic or otherwise. It is logical to assume in your case you may be talking about volumes of sir that could not be economically filtered with activated charcoal or other absorbing devices. In such a case then, one would raise the quosticn moms 09X086 Mr. Oeorga Kellis - Pag* 2 - Decanter 5, 1963 of bh* toxicity hasard of any Pydrwul AC in the potable water. Our animal toxicity data Indicate that, from an acute Btan int, it Mould he difficult for a human to Ingest auf lent Pydraul to oaua* aerioua lllneae. The data le auch, however, that we could not recommend that anyone drink, on a dally baala, water containing a fixed or "aafa" amount of such a contaminant. From a praotloal standpoint, it appears to ua that any water sufficiently contaminated to cauae any toxlo effact would be ao un palatable because of taate and odor* that peopla would refuse to drink It. The real problem then becomes one of aeathetloa rather than potantlal toxlolty. If I have misunderstood your question or problem or If I can provide any further evidence, pleaaa do not hesitate to let ms know. Sincerely, Elmer P. Wheeler, Manager Environmental Health Medical Department EPVldf cot New York Salsa Offloa MOWS 091087