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v. B. C. GOSS PRESIDENT Th e La k e E r i e C O M P A IY , PO< " C R A N T O N RD. ^ , ^ 4 ' '' C l e v e l a n d , O h i o D E L I V E R Y Z O N E 13 Septem ber 3 1943 CABLE ADOR ESS "LECCO CLEVELAND" D r. R obert A. Rehoe K e tte rin g L aboratory of A pplied P hysiology U n iv ersity of C incinnati C in c in n a ti, Ohio Dear D r. Kehoe: We a r e u n a b le t o a c c o u n t f o r t h ^ c o n t a m i n a t i o n o f t h e one u r i n ^ s ^ i o l ^ o b t a i n e d b y f l H L We h a d no accid en t or fH flH H iH lllB does not b eR 9 T ^ ^ n ^ sp 7 iled any of t h e TEL on h i m s e l f p r i o r t o A u g u st 6 t h . We h a v e h a d b u t one a c c i d e n t , w h ic h o c c u r e d on A u g u st 2 0 t h . On t h i s d a t e a r e a c t i o n got out o f c o n tro l and sprayed c o n s id e ra b l^ s o ^ itio n about the h o o d a n d on th e n e a r b y f l o o r . We,, and m y s e lf, l e f t th e la b , p u t on o v e ra lls , heavy ru b b e ^ g T ^ e s and sh o es, a n d g a s - m a s k s . We c le a n e d t h e a r e a w i t h b ro m in e s o l u t i o n and a l s o w i t h HTH s o l u t i o n . The o n ly tim e we h a n d l e t h e TEL i s w hen we p o u r tw o c a n s i n t o th e s o l v e n t i n th e f l a s k . As t h e r e a c t i o n proceeds the lead is p re c ip ita te d out as d ie th y l lead d ic h lo rid e , a heavy w hite s o lid . At the conclusion of the re a c tio n a ll the TEL i s c o n v e r te d i n t o t h i s com pound. T h is s o l i d i s f i l t e r e d o ff and s to re d o u ts id e in t i n c a n s. I t may be th a t a sm all amount of th is d ry powder con tam in ated the sam ple o f w hich y o u s p e a k . We a r e e x p o s e d t o t h e a r s e n i c com pound a g r e a t d e a l more in th e su b seq u en t ste p s o f th e p ro c e s s . I n th e n e x t few d ay s we w i l l o b t a i n u r i n e s a m p le s a n d s e n d th em t o y o u f o r y o u r a n a l y s i s . We s h a l l m ake e v e r y e n d e a v o r t o s e e t h a t no c o n ta m i n a ti o n o c c u r s . We e x p e c t to be fin is h e d w ith the production of the a rs e n ic a l in about 3 weeks S in cerely yours, THE LAKE ERIE CHEMICAL COMPANY f f. L . E . Edelm an D irecto r of R esearch