Document KYdk95aBY0pNX9Nb7zOkY746

Copy April 11, 1939. Mr. D. J . H oose, The Texas Company, 135 East 42nd S t . , New York C it y . Dear S i r : Our Sa fe t y En gin eer , Mr. Co le , t e l l s me he h ad a d iscu ssio n w ith you y ester d ay regard in g th e gath er in g o f slu d ge sam ples from r e fin e r y and t e r m in al g a so lin e st o r a ge t a n k s. Our M ed ical Departmen t in for m s u s t h a t in t h e ir op in ion t h e y h ave enough sam ples a t t h e p r e se n t tim e t o cover t h e problem t h e y a r e st u d y in g. T h e r e fo r e , i f you r men in t h e f i e l d ar e co n t in u in g t o gat h e r t h e se slu d ge sam p le s, you may d e sir e t o n o t ify them t h a t th ey ar e no lon ger n ecessar y as fa r as bein g u sefu l to our research people i s concerned. At one t im e a st u d y w as made o f t h e d e p o sit s in gaso lin e tan k c a r s and i t was foun d t h er e was ver y l i t t l e sign ific a n t lead accum ulation . Cars under ob servation were fr e q u e n t ly c le an e d g iv in g no o p p o r t u n it y fo r an y amount o f m aterial to gath er in th e bottom o f the c a r s. I f, in your experien ce, you fin d c e r t a in car s ar e n ot clean ed fr eq u en t ly and con seq u en t ly accu m u late an ap p r e c ia b le amount o f slu d ge , sc a le , or ot h er m a t e r ia l, I b e lie v e se v e r a l such sam ples w ould be i n t e r e s t i n g . lsfe w ould b e g la d t o h ave one o f our sa fe t y en gin e e r s p r e se n t a t su ch tan k c a r c le a n in g, i f agr e e ab le w ith you , an d he co u ld d o u b t le ss go o v e r w ith you r r e p r e se n t a t iv e th e gen eral safety precau tion s bein g taken . Very t r u ly you rs, 0 . B. Lew is. KF 0022302