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# OAR Box 1158 Prepped by RyanDugan



### Document

Number: 

# 30 ) l-C- 6

Docket Number: 

# A-88-0 2

Printed 4/28/2008 2:34:12 PM

Sheet 30 of 349P. 2 

## A-88-0 2

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____•_ •MIDWES T RESEARC H INSTITUT E

• ? i ff$ Csi I DliC l mZ'C'io 450 5 Creedmoo rRoa o

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. . ____~_T____

I Raleigh , N.C

. 2761 2 Telephon e (919 ) 781-575 0 

# 0

Februar y 21 , 198 5

Mr . Joh nKer y

-- • ' Chevrole t Moto r Compan y Bumpe r Divisio n 1300 0 Eckle s Roa d Livonia , Michiga n4815 1
Dea r Mr . Kery : Midwes t Researc hInstitut e (MRI ) i s currentl y unde r contrac t (Contrac t No . 68-02-3817 ) wit hth e U . S . Environmenta l Protectio nAgenc y (EPA ) t o study

ai r emission s o f chromiu m fro m severa l differen t sourc e categorie s includin g chromiu m platin g operations . A s note di n Enclosur e 1 , MR I ha s bee ndesignate da s an authorize drepresentativ e o f EPA t o perform thi s study

unde r Sectio n11 2 o f th e Clea nAi r Act . I nou r telephon e conversatio non Februar y 19 , 1985 , I explaine d tha t w e ar e presentl y collectin g informatio no n chromiu m platin g processe s an demissio ncontro l technique s and tha t w e ar e intereste di n visitin g you r platin g facilit y in Livonia , Michigan . I wil l b e contactin g yo u agai nwithi nth e nex t wee k t o discus s this . Th e informatio nyo u provid e wil l b e use di n decidin g whethe r o r no t t o procee dwit hth e developmen t o f a n ai r emissio nstandar dfo r chromiu m platin g operations . W e appreciat e an

y assistanc e yo u ca n giv e u s i n thi s matter . I f yo uhav e an

y questions , pleas e contac t me a t (919 ) 781-5750 . Sincerely ,

Barbar a W . Duletsky Environmenta l Enginee r Enclosur e

/ •P. 3

Enclosure

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# w \ UNITE D STATES ENVIRONMENTA L PROTECTIO N AGENC Y 3 Offic e o f Ai r Quality? , lannin g an

d Standard

s % «w* & Researc hTriangl e Park , Nort hCarolin

a 2771 1

DESIGNATION

O F AUTHORIZE D REPRESENTATIV E FORSTANDARD S O F PERFORMANC E FO R NE W STATIONARYSOURCE S (SECTIO N 111 ) AN D NATIONAL EMISSION

STANDARD S FO R HAZARDOU S AI R POLLUTANT S (SECTION 112 )

Midwes t Researc hInstitut e i s hereb y designate da n Authorize d Representativ e o f th e Administrato r o f th e Unite dState s Environmenta l Protectio nAgenc y

fo r th e purpos e o f assistin g i n th e developmen t o f standard s o f perfonnanc e unde r 4 2 U.S.C . 741 1 an d nationa l emissio n standard s fo r hazardou s ai r pollutant s unde r 4 2 U.S.C . 741 2 fo r calciner s an d dryers , mercury , asphal t concrete , magneti c tapes , plasti c parts , aluminu

m extrusions , elastomeri c fabrics, - secondar y bras s and bronze, portlan dcement , resilien t flooring , ethylen e dichloride , epichlorohydri nan d chromiu m unde r Contrac t Numbe r 68-02-3817 . Thi s designatio ni s mad e pursuan t t o th e Clea nAi r Act , 4 2 U.S. C 7414 . Th e Unite dState s Cod e provide s that , upo npresentationo f thi s credential , th e Authorize dRepresentativ e name dherein : (1 ) shal l hav e a righ t o f entr y

to , upon , o r throug han y premise s 1 n whic ha n emissio n sourc e i s locate do r i n whic hrecord s require dt o b e maintaine dunde r 4 2 U.S.C . 7414(a)(1 ) ar e located , and (2 ) may a t reasonabl e time s hav e acces s t o an d copy

an y records , inspec t an y monitorin g equipmen t o r metho drequire dunde r 4 2 U.S.C . 7414(a)(1) , an d sampl e an y emission s whic hth e owne r o r operato r o f suc hsourc e 1 s require dt o sample . Authorize dRepresentative s o f th e Administrato r ar e subjec t t o th e provision s o f 4 2 U.S.C . 7414(c ) respectin g confidentialit y o f method s o r processe s entitle dt o protectio na s trad e secrets , a s implemente db y 4 0 CF R 2.301(h ) (4 1 F R 36912 , Septembe r 1 , 1976) . 

### Date : OC T 1 8 198 4 Designatio nExpires : Septembe r 30 , 198 7

'YirA GeraldA . Em i son Di recto r Offic e o f Ai r Qualit y Plannin g andStandard s

r-Z.