Document pp1ZZ7GZKnvqn1zQMw4MkNv06

STA'.'t or Mi ;gan V/IUIAM O. V.IILIKLN', Cuvwi.u. DePAJOVU-NT Or NATJAAL AiiSGlA - .'OSH V. Y/i'.Ov SVLVmNS T. /AASON S'.UILD.'NG, LANSING, MICHIGAN /.S926 RAID! A. MAC M'JUAN, Olive:*/ September 23, 1959 * gec-ic. r. jX`: . K " . .' \:'-' l ' ''ai'.-IN, T'ioorlo . ,.i .tri .1 FA>,. tif Kn^inccriny Section til facers Corporation Aroit, Michigan }). (;,, . - i X..A / f * / '/ .<Mr. Tiberio: u H 'A Uii week representatives of a large chornical manufacturing firm visited oar office to discuss possible problems related to products involving .-..i'. -ina-.i.d biphenyls which are manufactured by this company. It was lu'.r-.ad that these materials are finding increased use in industry as hydraulic fluids and coolants. Their concern, and now our concern, lies in f.a fact that chlorinated biphenyls, commonly referred to as PCB's, are i-.igh'.y toxic to aquatic life and are chemically similar to DOT and persistant pesticides. ' are not yet in a position to evaluate the significance of the use of e!,lurinated biphenyls.by industry nor to make ar.y judgment as to what pollution*! hazard, if any, may exist. At this point we arc trying to find out whether these materials are actually being used. It is our uno'cstending that Monsanto is presently .marketing a hydraulic fluid i'.ii..,:. ised largely of PCB's under the trade name of Aroclor. We would greatly appreciate knowing if your company is presently using this or .ar products, and if so, what the extent of this usage might be. ar.h you for your cooperation in this .matter. - ' ' Very truly yours, ' ,.\V/ y-o' rf > ii /! o, fuf/Sb IM'uf: SiSOOSCES COMMISSION :/ : t'.st .. .1 ... mincer . . xfv' /^ /*v> - IN '' 'N MQNS 090804