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# OAR Box 1194 Prepped by Candice Davis



### Document

Number: 

# 72 ) ll-C- 1 Docket Number: 

# A-90-1 5

Printed 5/13/200810:52:15AM Sheet 72 of 89P. 2

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### Docket &9°*t5 AN N ARBOR

. MICHIGA N 4810 5



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_i f EP AAI R DOCKE T OFFIC E O F AI R AN D RADIATIO N

Dr . Mark D . Levi n Manager , Technolog

yPlanning an

d Developmen t Fue l Product s Grou

p Lubrizo l Busines s Developmen t Compan y 2940 0 Wickliffe , O

H 44092-229 8 Dea r Dr . Levin : Thi s i s t o advis e yo u o f th e statu s o f your reques t fo r a n EP Areactio n t o an

d some typ e o f preliminaryapprova l o f th e Lubrizo l coppe r base d diese l fue l additiv e fo r us e i n particulat e trap-equippe d mediu man d heav ydut ytrucks , busses , an d ligh t dutydiese l vehicle s an d trucks . i t i s understandabl e tha t yo u woul d lik e t o know a t thi s stag e EPA' s reactio n t o your additiv e s o tha t yo u can approac h companie s tha t migh t us e i t t o mee t EP Astandards . Whe n yo u firs t me t wit h u s in An n Arbo r i n Augus t 1989 , w e discusse d the typ e o f tes t dat a yo u shoul d collec t an d the issue s tha t woul d nee d t o b e addresse d b yLubrizo l fo r EP

At o conside r allowing us e o f th e coppe r additiv e system . Base d o n thos e discussion s plu s thos e wit h othe r intereste d partie s suc h a s the Californi a Ai r Resource s Board , yo u the n collecte d dat a on emissions , exposure , an d healt h effects . Thi s informatio n wa s compile d an

d presente d t o u s i n Ann Arbo r (an d simultaneousl yt o EPA' s Fiel d Operation s an d Suppor t Division) . Fro m th e informatio n yo u hav e supplie d t o us , th e coppe r additiv e used in conjunctio n wit h a suitabl e tra p appear s t o produc e larg e reduction s i n diese l vehicl e particulat e emission s relative t o us e withou t tra p an d additive . Also , w e

DVCI I AJ . IllUltJ f UlU f J n^LV . L. V « A ^ J Al * *->- ^ J L l- l V . *_

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w du e t o th e lo

w concentratio n o f additiv e i n th e fuel . Th e healt h relate d analysi s yo u presente d als o appeare d encouraging . However , we need t o obtai n furthe r inpu t t o verif yyou

r facts .P. 3

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- According t o your analysi s an d data , regulate d an d unregulate d emission s ar e no t increase d b ythe additive , excep t fo r coppe r oxid e emissions , an d the coppe r oxid e emissio n rat e i s s o lo

w eve n wit h a hig h us e scenari o tha t huma n exposure s woul d be negligibl e compare d t o norma l die t intake . I f al l tha t yo u tol d u s i s true , an d w e se e no error s fro mour ow

n readin g o f your document , the n I woul d se e no reaso n fo r EPAt o objec t t o the us e o f thi s or a simila r additive . Indeed , i t seem s t o represen t a ver yusefu l approac h t o particulat e control . Th e nex t step i s fo r u s t o allo w review o n a veryinforma l basi s o f al l your informatio n b yothe r part s o f EP A(such a s the Offic e o f Researc h an d Developmen t an

d the Offic e o f Toxi c Substances) , the Nationa l Highwa yTraffi c Safet y Administration , an d intereste d publi c parties . T o facilitat e the publi c review w e plan t o plac e al l th e informatio n int o a publi c docke t an

d announc e the availabilit yo f the informatio n in the Federa l Register . W e wil l b e surprise d i f substantiv e advers e comment s ar e received . Th e review proces s t o be followe d fo r the Lubrizo l copper-base d additiv e i s the same proces s tha t w e hav e bee n following fo r the iron-base d diese l fue l additiv e system develope d b

yVolkswagen . However , a s accounte d fo r i n you r analysis , the potentia l quantitie s o f coppe r additiv e t o b e used ar e greate r than thos e fro mth e nea r ter

m us e o f th e iro n additive . Thi s i s becaus e the coppe r additiv e i s intende d fo r us e in the larg e numbe r o f trap-equippe d heav ydut ydiese l vehicle s possibl e wit h the 199 4 EP Aparticulat e regulations , wherea s the V

W iron additiv e i s currentl yonl yintende d fo r us e i n ligh t dut ytrap-equippe d diese l vehicles , whic h constitut e a muc h smalle r numbe r an d hav e muc h lowe r averag e fue l consumption , an

d thu s les s additiv e usage . Eac h manufacture r applying fo r certificatio n o f an engin e famil ytha t relie s on the Lubrizo l coppe r additiv e woul d hav e t o show tha t the fact s presente d b yLubrizo l wer e applicabl e t o it , bu t no t necessaril yb ysuc h complet e testing . I n particular , dat a or analysi s woul d nee d t o b e presente d indicatin

g tha t the additiv e composition(s ) t o b e use d woul d no t diffe r fro

mthe compositio n use d i n your testing i n a wa y tha t coul d substantiall yaffec t the emissions , exposure , or healt h effects . Also , w e migh t lik e t o se e some coppe r retentio n dat a on eac h significantl ydifferen t tra p design fo r compariso n t o the 97 % retentio n rat e foun d i n you r testing . Also , i f a ligh t dutyvehicl e manufacture r o r especiall ya bu s engin e manufacture r wante d t o us e you r additive , w e migh t lik e t o se e exposur e modeling don e fo r a parking garag e scenario , sinc e thi s wa s no t don e i n your analysi s fo r heav ydut ytruck s becaus e suc h a scenari o i s no t ver yappropriat e fo r suc h vehicles .P. 4

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- A s w e discusse d i n the meeting on Ma y7 , fina l EP

A approva l woul d consis t o f granting a certificat e o f conformit y t o eac h vehicl e o r engin e usin g the coppe r additive . O f cours e al l norma l certificatio n requirement s wil l hav e t o b e me t an d a n applicatio n fo r certificatio n submitte d befor e EPAca n officiall yconside r certification . Also , a s wit h an yEP A certification , EP

Aapprova l woul d be fo r onl yon e yea r a t a time , an

d migh t no t b e renewe d i f new evidenc e regarding the possibilit yo f unreasonabl e ris k came t o light . Also , i f i t shoul d happe n tha t s o man ymanufacturer s adop t a simila r system on suc h a larg e numbe r o f vehicle s tha t publi c exposur e woul d be projecte d t o b e muc h mor e substantia l tha n no w expected , a rulemaking woul d no t be necessar yt o ceas e granting approval s i f EP Adetermine d tha t an unreasonabl e ris k wer e posed . An y decisio n t o ceas e granting approva l woul d nee d t o weigh the appropriatenes s o f providing lea d tim e notic e t o the manufacturer s agains t the gravit yo f an yhealt h effect s concer n tha t migh t be identifie d befor e concluding ho w quickl y approval s shoul d b e stopped . I hop e thi s informatio n i s helpfu l t o yo u an d m ystaf f loo k forward t o an

yfutur e discussion s wit h yo u on th e us e o f thi s additive . Sincerel yyours ,
Charle s L . Gray , Jr . Directo r Emissio n Contro l Technolog yDivisio n cc : Rober t Maxwell , Certificatio n Divisio n Jame s Caldwell , FOS D