Document xdz0nG7MGKLxgQYRODeV6dnmE

WILLIAM W E IN G A R T E N , M. D., F. A. C. F., F. A. . C. 1 0 7 N ELSO N AVEN UE Gr e a t Kil l s STA T EN ISLA N D , N . Y. P h o n e Yu k o n 4 - 4 4 3 3 August 19, 1963 Dr. Robert A. Kehoe U niversity of C incinnati K ettering Laboratory, C ollege of M edicine C in c in n a ti 1 9 , Ohio Dear Dr. Kehoe: ^ I w ish to thank you fo r your comprehensive le t t e r o f August 9, 1963 addressed to Mr. J . P. Warner o f th e Nassau S m eltin g & R e fin in g Co. I n c . I am c e r t i f i e d by th e Board o f I n te r n a l M edicine and a c tin g a s M edical D ir e c to r o f t h i s company on a p a r t tim e b a s i s . I am f a m ilia r w ith th e problem s o f t h i s p la n t and w ith th e im portance o f a r o u tin e check-up o f th e p erso n n el exposed to l e a d . I welcome you r o f f e r -to h e lp us i n ch eck in g th e blood and u r in e le a d le v e ls on our workers sin c e we have been r e ly in g p rim a rily on s tip p le c e l l c o u n ts and u rin a r y p rop h yrin l e v e l changes p r io r t o o rd erin g le a d blood l e v e l s . I t i s ob viou s th a t you r ty p e o f sp o t ch eck in g may g iv e us more adequate super v is io n of our op eration s. The p la n t works on a 3 s h i f t b a s is and we s h a l l endeavor t o send you blood sam ples o f le a d c o n ta c ts whenever th e y r e tu r n to th e day s h i f t . We have a c e r t a in number o f permanent em ployees who a re w orking i n our le a d departm ent and th ey are 'as fo llo w s : Moving Grate Sweater M ixipg K e ttle s and C asting K e ttle s S trip p er Department S p lic e C utting Machine Large K ettles Cable Sorting Department 4 Operators 5 Operators 24 Uperators 3 Operators 3 Operators 12 S o rters We a ls o have a number o f em ployees engaged on a tem porary b a s is fo r p e r io d s o f 2 weeks to a month a t a tim e and- th e y are a s f o llo w s : Moving Grate Sweater S trip p er Department S p lic e G utting Machine Large K ettles 4 Helpers 24 Helpers 3 Helpers 2 Helpers We would l i k e to ch oose ap p roxim ately 15 o f th e above em ployees f o r }rour stud y Dr. R. Kehoe Page Two August 19, 1963 and I wonder i f you co u ld g iv e us your o p in io n which ones of t h e s e would be best suited for i t . ' I w ould a p p r e c ia te i t v e r y much i f you send me th e m a te r ia l f o r c o l l e c t i n g the blood and u r in e saniples to ray o f f i c e a t Nassau Sm elting. & R e fillin g C o ., I n c . , 1 Nassau P la c e , S ta te n I sla n d 7 , N. Y. Thank you fo r your k ind a t t e n t io n , I remain Very tr u ly yours, l./ o / <y eh cc: R. H. McCrea e n c lo su r e : We a re e n c lo s in g a d e s c r ip t io n o f th e above o p e r a tio n s which probably w ill be h e lp fu l to you in evaluating the lead exposure ,o f th e em ployees m entioned ab ovece KE 0018747 Moving Grate Sweater A r e fr a c to r y lin e d en closu re 4 8 1 long x 40* wide through which p asses a con v ey o r b e lt lo a d ed w ith le a d encased c a b le . The le a d i s m elted o f f th e c a b le and c o l l e c t e d i n 2000# m olds o u t s id e th e fu r n a c e . The rem aining copper w ire i s c o l l e c t e d a t th e end o f th e e n c lo s u r e . The le a d covered c a b le i s hand loaded onto a conveyor b e lt , fh is op eration consumes approxim ately 1 ,0 0 0 ,0 0 0 lb s of lead covered cab le per month. Mixing K e ttle A bowl shaped c o n ta in e r th a t h o ld s a p p roxim ately 1 0 ,0 0 0 # o f m e ta l. Some r e f i n i n g and a llo y in g d on e. They a re hooded arid exh au sted by n a tu r a l d r a f t to a 200 f o o t s ta c k . M a ter ia l i s hand lo a d ed , le a d d ross which forms on th e su rfa ce i s removed m anually by a bowl shaped scoop and dumped in t o sm a ll (.approxim ately 3 0 u x 1 8 x 8" d eep ) open m eta l c o n ta in e r s fo r d is p o s a l . A pproxim ately 3 4 0 ,0 0 0 lb s . of m a teria l i s processed per month. Casting K ettle C a p a city 2 ,0 0 0 # , k e t t l e hooded and exh au sted by n a tu r a l d r a f t to a 200 f t . s t a c k . No r e f in in g done h e r e . M a te r ia l i s handed lo a d e d , le a d d ro ss w hich forms on th e s u r fa c e i s removed m anually by a bowl shaped scoop and dumped in t o sm a ll (a p p ro x im a tely 3 0 1! x 1 8 11 x 8" d eep ) open m eta l c o n ta in e r s fo r d is p o s a l . Approx im ately 45,000 lb s . of m a teria l i s processed per month. Large K ettles Same a s m ixing k e t t l e e x ce p t 5 0 ,0 0 0 # c a p a c ity . M a ter ia l i s both hand load ed and tru ck loaded and c o n s i s t s of le a d c a b le , le a d b lo ck s and v a r io u s oth er le a d p r o d u c ts. Removal o f d ro ss from th e s u r fa c e o f th e c a b le i s manual and done by u se o f a bowl shaped sco o p . The d ross, i s dumped i n b in s f o r d is p o s a l . Approx im a tely 2,7 0 0 ,0 0 0 lb s . of m a teria l i s p rocessed per month. S tr ip p e r Lead sh eath i s cu t o f f te le p h o n e c a b le . The b u ild in g i s 120 x 20 x 14 f t . a t th e ea v e s and c o m p le te ly open fo r 120 f t . on th e so u th ern f a c e . The le a d covered c a b le i s hand fe d in t o th e s tr ip p in g m achine and undergoes a s l i c i n g o p era tio n betw een two r e v o lv in g c ir c u la r b la d e s . The w ir e i s fo r c e d out and th e le a d c a sin g i s retu rn ed to th e op erator by r e v o lv in g w heels u sin g a cru sh in g p r o c e s s . Approxim ately 1,8 0 0 ,0 0 0 lb s . of m aterial i s processed per month. ^able S orting A v isu a l in sp ectio n fo r s p lic e s in lead covered cable of sm all s iz e . S p lices are chopped o f f and s c u t to s p l i c e c u t t in g m ach in e. The above o p e r a tio n i s done in th e open. A ll c a b le i s m anually handled and s o r t e d . D if f e r e n t s i z e s and m eta l c o n te n ts are s e g r a te d and r e lo a d e d . The chopping o p e r a tio n i s done by th e u se o f a h a tc h e t w ield ed by th e w orker. A pproxim ately 2 ,5 0 0 ,0 0 0 lb s o f m a te r ia l i s processed per month. N19733 S p lice Cutting The ends o f s p l i c e s are c u t w ith a r o ta tin g k n i f e . T his i s done i n an area which i s a le a n - t o w ith 3 open s id e s The o p era to r p h y s ic a lly in tr o d u c e s each s p lic e in to a ro ta tin g k n ife , c u ttin g th e ends one a t a tim e. M aterial i s then re stacked fo r fu rth er p r o c e ssin g . 75,000 lb s. of m a teria l i s processed each month. KF 0018749