Document jyLdBVy5VOOgBXd0XY9y5gOR9

Monsanto Monunto Company 800 N. Lindbargh Boulevard Stv Lowlt. Miaaouri 63166 Phono. (314) 884-1000 June 11, 1970 .OffOAMC CHOJtCMJ Dear Cuatome r: In February we advised you of the newspaper and magazine articles indicating that polychlorinated biphenyls (PCBs) have been discovered at some points in some marine, aquatic and wildlife environments and might be environmental contaminant*. It was claimed that the PCBs found strongly resembled chlorinated biphenyls containing 54% and 60% chlorine by weight. . Pydraul 625, Pydraul AC, Pydraul AC Winter Grade and Pydraul 540 have historically been formulated with these polychlorinated biphenyls. New formulations have now been developed and tested. These replacement products provide equal or superior performance. The new formulations will be designated Pydraul 625-A, Pydraul AC-A, Pydraul AC-A Winter Grade and Pydraul 540-A. These formulations are completely compatible with the old formulations. During the next 90 days, as inventory is depleted in warehouses around the country, the new formulations will be shipped to fill your orders. After this period, we will market only the newly formulated products. We thank you for your consideration in this matter. If we can be of further assistance or answer any questions you might have please contact our local representative who can provide additional technical information about the new formulations or contact me in St. Louis. Very truly yours, N^C Johnson Marketing Manager Industrial Fluids lb MONS 088465 2