Document 8RjmJ5jq58ov0qqmMG6a6Ym7d

.r`- .: I ' . -- ^ t e a s s o c ia t e d e t h y l c o m pa n y l i m i t e d *-/ / ' *MMf-E DIjl*%f A* IL tSf?EerRoVv/Ii/C-*ErS ELLESMERp PORT, CHESHIRE X.- H e a d O f f i c e : 20 BERKELEY SQUARE, LONDON, W. I t e l e ph o n e : ELLESMERE PORT 3611 TELEX NO'- 6 2 3 8 - D r . P. s . I. BARRY Chief Medical Officer TELEGRAM S: O C TEL, ELLESM ERE PO RT, TELEX CABLES: OCTEL, ELLESMERE PORT OUR REF. TOUR REF. Dear Dr. Kehoe, 5th January, 19&L. I enclose copy of some information that our Sales Department has obtained on work done by Ethyl Corporation on the decontamination by weathering of sludge from leaded gasoline storage tanks. Ethyl Corporation evidently appear to be advocating this method of sludge decontamination as an alternative to the old method of burying the material. I shall be most grateful for your comments and any views you may have to offer on the acceptability of this method of decontamination, which I may incorporate in my recommendations to the Sales Department relating to this method of decontamination. I note on the last page of the enclosed copy that it is suggested that there is no danger to persons or animals in the spread-out sludge, even if they were to lie down in the material. I must say I find this rather difficult to accept. With kindest regards, Yours sincerely, I Dr.R.A. Kehoe, The Kettering Laboratory, University of Cincinnati, College of Medicine, Eden Avenue, Cincinnati, 19, . Ohio. .. Enc. PSIB/pby /{ir 0 6 3 4 4 ,i %? -S'W^'^'- - - , ., ?,.* >.*-. .v PROCEDURE'TOR i 4 J6. ' i. *? DECONTAMIRATIOn ''BYf^M-- --T H----^ I--E--G- `;''~ ' '^6XZf'Z/ff?c' -. & 'VS ' *' ' SLUDGE FROM LEADED G A gollH E STORAGE TANKS" <~ I W$mM? M[!%&/? . ...................... T he . d i s p o s a l : o f - s l u d g e T rom le a d e ^ " - g a s o iin e ; i8 t o r a g e ta n k s & 8 :p r!esen ted i:a n iifefta a e v e r -in c r e a s in g problem ;to th e ypetroleujw i^dU s^, ' <-. **> e n o u g h s p a c e t o ;d ig . h o l e s f o r b u r y ij ^ 'i "3,'rr d ifficu lt to fin d su ita b le d isp osal^ ! c a s e s i t h a s b e e n n e c e s s a r y , *-- -the slu d g e has b een b u r ie d . ?. \ \ # i ` ,, ,, _ _ ..... ^ . _____ w .....____________ ,..... . ^ , } " - ' W ith a l l - t h i s i n mind', *E t h y i ^ C o r p o r a '|i^ ^ a y 'f b e e n "malting -a''d e t a i l e d ' s t u d y o f XF& .t h e s l u d g e d i s p o s a l ] p r o b le m a n d h a s d e v e l o p e d a p r o c e d u r e v h l c h V i s s a t i s f a c t o r y , s a f e * i$ / an d ; i t i s .b e lie v e d , more eco n o m ica l th a n 'p resen t* 'm eth o d s. T h is method o f d is p o s a l ia-V o u t lin e d ]i.h|:the f o llo w in g p a ra g ra p h s . (The o ld ' m ethod c o n tin u e s t o b e a c c e p t a b le i f -^^v-1 p referr ed .) *.-*'' -r ' - . . ^. ' VlvS". PURPOSE: P r o v id e a m eth od f o r s a f e l y d i s p o s i n g o f s l u d g e t a k e n fr o m ta n k s t h a t h a v e W-4 c o n t a i n e d le a d e d g a s o l i n e . : i i . . x /., ' ' l-,~. S tan d ard p r a c t ic e up t o now h a s -b e e n t o b u ry th e slu d g e ' in th e grou n d n ea r th e. tank b e in g c le a n e d . The o b je c tiv e o f th e fo llo w in g p rocedure i s to provide a ;s a fe way to d isp o se o f lead ed g a so lin e ta n k .slu d g e , so th a t b u ryin g-.w ill, n o t'be n e c e ssa r y . , " **,, ** $$ w - , ' T S # v--i^PROCEDURE: - - w - - ; **' ;* f- - i* \ ,, .^ 1 . . S e l e c t a ;s i e o n ? w h ic h t h e s l u d g e c a n b e s p r e a d . pf- h-. . - -1 r . - ^ 4 /' . . - 4-;^* : aV'yThe s i t e s e le c t e d fo r slu d g e d isp o sa l:* sh o u ld .b e in a rem ote .p art. r '-^ o f . th e p r o p e r ty a n d , o f c o u r s e , s h o u ld b e ^ w ith in p r o p e r ty l i m i t s ^ ^ w h e r e T 4 |.v ^ l ; b e ^eneecL^off^from th e p u b lic . I t sh ould be lo c a te d 1 ^ 4 '' ^F.W '-'^w ay from o f f ic e 'b T u iid in g s ^ a n d ti f ^ s p r e a d r n e a r -th e , ta n k b e in g c le a n e d 't&zm ( 4 5 | b , t^fcar orsco; i s s "o r r .c o n c r e t e . /^ jg 7% ~ f lp r ^ Iran it;w a ter w ill'n o t stand . 44=-> ..4/e'. 4T hevtp - ?. .% - --t^ p g e .S tt -f - stag ' i c i e n t l y - i ' The..- ^35fq<rg ;t&nk^ -9-% .sitrl ' t? f < sated . ......... ................. ..............J , ----------- Hi. -^ 1. H! . M i - ' ,''O f .th e th lu d g e . E xposu re tO the.iunTis d e s ir a b le o u t n o t pcowsaruyr*fa'mc em^ - ' '~ '*'#*>* % ^ -4 2 .^ R em o v e s lu d g e ^ fr o m th e ta n k in t h e u s u a l m anner f o ll o w i n g * t h e safet*^frecOimane*n| ." ................................................... 3- The s lu d g e can h e r.oved from t h e t a n k t o t h e s p r e a d i n g a r e a in a v a i l a b l e p la n t equipment. Wheelbarrows, buckets or other small containers nay be u s e d f o r moving i t a s h o r t d i s t a n c e . Dump t r u c k s , l u g g e r b u c k e t s , e t c . may be u s e d f o r l o n g e r d i s t a n c e s . The c o n t a i n e r s u s e d s h o u ld be m e t a l . A fte r u se , they should be washed thoroughly w ith w ater. . k . The sludge can be spread w ith ho es, rak es or s h o v e ls. I t should be spread a s u n if o r m l y a s p o s s i b l e t o a maximum t h i c k n e s s o f t h r e e i n c h e s . I f t h e area perm its i t , a thinner .spreading is d esirab le. , 5 . P e r s o n n e l h a n d l i n g a'r.d s p r e a d i n g t h e s lu d g e s h o u ld be d r e s s e d i n s p e c i a l c lo th in g a s recommended f o r ta n k c le a n in g . Masks w i l l n e t u s u a ll y be n e c e s s a ry u n le s s t h e r e i s no a i r movement and vapors can be d e t e c te d by odor a t face lev el. ; 6 . A f^er th e sp read in g i s com pleted th e sludge patch c r patches should be . roped o f f and marked so t h a t no one w i l l walk through c r stan d in th e s lu d g e . T. The spread sludge should be l e f t f o r a t l e a s t fo u r weeks. A fte r t h a t the s lu d g e may be t r e a t e d a s any o t h e r n c n t o x i c w a s te m a t e r i a l . I t i s s a t i s f a c to ry to remove s ig n s , fe n c e s, e t c . , i f any, and leave the sludge in the p r e s e l e c t e d a r e a p e rm a n e n tly . The four-w eek w e a th e rin g p e rio d a p p l i e s when the ambient tem perature is above 32F. T herefore, i f tem peratures under 32. e x ist during the period of weathering th is period of subfreezing temperatures w ill not be in cluded in the recommended U weeks o f w eath e rin g . you. Your "Ethyl" re p re s e n ta tiv e w ill be glad to d iscu ss fu r th e r d e t a ils w ith i ... K E 0006366 ?^p'y' ~ 'nxLs&sf-1. r-~T -. B,, U.ffig W. B&BB&- IJP - - --- -- jss&sg . Ix eerp ts from F ield B u lletin "Sludge seuspl e s sh ou ld b taken and l ly s e d a t th e s e t l m s t 1 . When th e slu d g e la f i r s t reaoved fr o th e tank fo r w e a th e r in g , or as soon afterw ards as p o s s ib le . .. , 2 . Four weeks ( - a fuv days) from th e tim e i t I s f i r s t sp read . 3 I f th e sawpl taken a f t e r fou r weeks o f w eath erin g has a le a d coc- t e n t o f .002 Wt.V or l e s s , no more saBiples need be ta k en . I f i t i s . 003 Wt.^t or mere, a d d it io n a l sam ples sh ould he token and a n a ly sed ... a t a p p roxim ately two week in t e r v a l s u n t i l th e lead c o n te n t o f th e slu d ge drops to .002 V t . $ or below . . ',, At each o f th e se t in e s th ree sludge - eaaples should be taken and an alyzed In order to confirm the fin d in g s .^ In a d d itio n to the sludge sam pling and a n a ly z in g , two Le%d-in-Alr checks should be m d e a t th e aame t i n e . The a i r sam ples sh ou ld be tak en a t a p o in t U" above th e su rface o f the sludge In the middle of the la r g e s t p atch . I f t h is sample should g iv e a read in g o f fou r or more on the H e llig e Comparator o th er sam ples should be taken to determine the boundary of the contaminated a ir . ( I t is not expected th a t a U reading w ill be found, but I f I t i s , i t is Important to f o l- Icv th is in stru ction .)" . "In order to gwt a good r e p r e se n ta tiv e ample o f sludge a f t e r I t Is spread fo r w eathering, the fo llo w in g procedure should be follow ed j Take sosw slu d g e free: 12 d if f e r e n t p o in ts over the e n t ir e p atch o f s lu d g e . At each p o in t, tr y t g e t m a teria l from th e to p , middle and b e tto n o f th e / . slu d g e la y e r . Thoroughly ml* th e m a te r ia l taken fr o th e s e 12 p o in ts In a bu ck et or o th er c o n ta in e r . The req u ired amount o f slu d g e fo r th e a n a ly s e s can then be taken from t h i s com p osite f i x t u r e . I t can be sh ip ped to Lab oratory in conventional pressed lid tin container. Whenever the weathered slu d ge a n a ly zes .002 W t o r g a n i c lead or l e s s , i t cay be c o n sid ered s a fe and th e slu d g e may then be tr e a te d a s any o th e r . fp non-bexardous w aste m a te r ia l. U n t il th e le a d l e v e l i s reduced, to t h i s '1 r p oin t the sludge area should be roped o f f and trea ted as d escrib ed In 'th e? sludge weathering procedure attach ed . P le a s e keep in mind th a t t h i s i s a v o lu n ta ry program. I f fo r any r e a s o n , c u s tomers do n ot ehooee to d isp o se o f slu d ge In t h is sanner th e y , o f c o u rse, say continue to bury i t - /< 0 0 6 6 9 6 7 TtB Lt 1 - P8TSRKIKATI0N OF TEL AND OTBEB OROAOTC LEAD ID 3LUPQE - tounp. tel amp other oroani: leap, parts peb million ^>7s. rn Time Day 0* 2 ,{ti SIk t o - 6i 14 , 21 28* * . 'JtKt.e-ftee,i*:":-`>- ' W `-y 42 r in;.. Patch TEL Organic 6.4 296 * 3.1 202 7.6 10" 5.6 86 *9 **c ^u. VV * inch Patch TEL Organic 37* j*+ 2 6 3 4 .1 152 6.9 6*. 4 . 2 . *0 H #^ 1l- 2 inch Patch TEL M ^U Organic 2.5 'l' . -A 2.2 66 1.6 1.4 2,7 - a 2.7 V 3.1 ; ' : ' 1.4, Immediately a f t e r spreading sludge. For t h i s dat a, a n a l y t i c a l r e s u l t s were Qu e s t l o n a t l e and are not. r e p o r t ^ *> > ' *v - ,, ', 4 ;$ *>WM v t^c ^ ' **SNfe ? ' *>^ ^ w > ^ .* ^ Ixjijf^ -i. v >~ >- "- *<y- <i.*03>, *'*v**.'.*-%^V? ^^. < ... ,. ...;-;vr r : ^ ^ . 'SffU&iwMk&Hif _ **'- * H&Ai .TYPICAL DATA PROM SLUDOl WZATE3ERIM} ~tOT6? . r i s / j v.'*s>tx<z"Z,t- a.sctmffla. H,J*?*'yW & *3i-iXrhi'~ '5* Ss*.A r,,~ ^ *g'av-*S S * 3 ^ T+ i / j* ,r * Z - tv,V *iVi? W TABLE I I _? it Wi> _ - ; / ` , \ TEL1 & O th e r O r g a n ic Lead", PPM?, Ll Ii Aa J3 RE' ADING C a t ^ o f W e a th e r in g < 2 >rT h ic k P a t c h y , ^ " T h ick P a tc h M icro g ra m s p e r `t u t i i ^ "--D a*^..s. '- ' m m--TEL- "^ ;--O r"g--a nri--c"/*'"** .>-T-E--L->-.i,,v rOrrr"g--a n~ic-..w;/sswm/*B_$f._c' __"_______** ^ "* "'*"' * W a ist'L ev el < 3"?Above 3 8 . 0 * - O'. 2 - ^ C > 8 ^ 0 ^ S lr T ***1A bove S lu d g e v a ju d g e * ` -.1 \ ^ f l 0 . o 1 .1 ^ W 1 2 . 3 - ' . I . */ ' l i ' \ - 9 V ,. t :\-n 3 my , 1.(1? Day) 1 (2 Days) ' 1 (5 'W s) *,, 5 ^ -~s* r4^ k ZM& *i < &**1*''ilC-''"' TABLE I I I .TEL & O th e r O r g a n ic L e a d . PPM . ' . o f W e a t h e r in g ~2" T h i c k P a t c h l+ ^T hick P a t c h ^ ^ ^ yD ays. -. TEL. O r g a n ic TEL O r g a n ic <* 5&jt - li>: O .-'lasg 'm W m E ; > az .fx*-*. k^ ? l 16 L- - . . 2 . 2 : ,.' 66," ; Z ,r < 2 - m ^*.1 ' 1 . 3. `. 37u 3 -1 263 U-1 1?2 .- .V5..9 .W % '-uo ;."-V:i ' 15: h . 61. LIA READING ^ rs* " __ M icrogram s per, cu h i^ -jrV j'^ /if -. . . f o o t a i r - ----------------------------------------------------------- 1.0 . ItO % 2.0 '-;-Vw>h ` c; _ r f t V , . .ti-.i , -tra c e <-- '1 .0 jvv . S '-%MmZ2? K* ' ' N 7737.04