Document 6wMoo2eG6Yew8XgDryKzxZ3Go

Monsanto Monsanto Company 800 N. Llndbargh Boulevard St. Louis. Missouri 63166 Pbons: (3)4) 684-1000 0 S V > ? / -? <y\ Dear Customer: Recently several newspaper and magazine articles have been published Indicating that Polychlorinated Biphenyls (PCBs) have been discovered at some points In some marine, aquatic and wildlife environments. The quantities detected are said to be In the parts per million and parts per billion categories. It is claimed that the PCBs found strongly resemble chlorinated biphenyls containing 54$ and 60$ chlorine by weight. Products whlch-are sold by Monsanto under the tradenames of Aroclor GP 1254 and 1260 contain chlorinated biphenyls. As your supplier of Aroclor 1254 and 1260, we wish to alert you to the potential problem of environmental contamination as referred to In the newspaper and magazine articles. We would lilce to point out the following additional facts. 1. Certain Monsanto products which are sold under the Aroclor trademark, namely Aroclor 5060, 5442 and 5460, are not polychlorinated biphenyls. 2. PCBs with a chlorine content of less than 54$ have not been found In the environment and appear to present no potential problem to the environment. HONS 087774 2- W ful that all possible care should be taken In the application, prooeselng and effluent dlapoeal of theee products to prevant them beoomlng environmental contaminants. Of Interest to you may be an article In Chemical week. October 29, 1969 regarding water pollution standards set by each state In the union. It Is attaohed. This article reflects the view that good manufacturing practice in the future may require that no produota used by any company be lost or discharged In such a manner as to ultimately be found In waterwaya. Very truly yours W. E. Schalk Director of Sales Plasticizers mqns 087775