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# OAR Box 1313
Prepped by LaTeia Shed



### Document

Number: 

# 38 ) ll-B-1 2

Docket Number: 

# A-88-0 2

Printed 6/12/2008 9.03:29 AM

Sheet 38 of 99P. 2

$ 

### A-88-0 2 

## A-88-0 2
MIDWES T RESEARC H INSTITUT I 450 5 Creedmoo r Ro a Raleigh

. N.C

. 276 1 Telephon e (919 ) 781-57 5


# V
Date : Septembe r 2 , 198 6

(Finalize dFebruar y

5 , 1987 ) Subject : Sit e V1s1t--Br1gg s an d Stratto n Chromiu m Electroplatin g NESHA P i EPA Contrac t 68-02-3817 ; ESE D Projec t 85/02 * MR I Projec t 7717- K From : Robi nBarke r

Charle s Heste r
To : A l Vervaer t

ESED/ISB/SS S (MD-13 ) U . S . Environmenta l Protectio nAgenc y Researc hTriangl e Park , N.C . 2771 1
I . Purpos e Th e purpos e o f th e visit s wa s t o determin e th e suitabilit y o f th e plan t a s a sit e fo r chromiu m emission s testin g t o asses s th e effectivenes s o f a mis t suppressan t 1 n inhibitin g misting . II . Plac e an

d Dat e Brigg s an

d Stratto n 333 3 Wes t Goo dHop e Roa d Glendale , Wisconsi n5320 9 (414 ) 352-301 4 Initia l plan t visit : Jun e 5 , 198 6 Followu ptestin g visit : Augus t 2 , 198 6
III . Attendee s Brigg s an

d Stratto n Cathy McConnell , Chemis t (Augus t 2 , 1986 ) Ala nHaase , Chie f Chemis t an d Environmenta l Enginee r (Jun e 5 an

d Augus t 2 , 1986 ) Pos t Offic e Bo x70 2 Milwaukee , Wisconsi n5320 1
To m Drews , Platin g Supervisor , Glendal e (Augus t 2 , 1986 )
Peterso nAssociate s Albert a Schumacher , (Augus t 2 , 1986 )

/ •P. 3

U . S . Environmenta l Protectio nAqenc y (EPA )
A l Vervaert , IS B (June 5 an d Augus t 2 , 1986 ) Midwes t Researc hInstitut e (MRI ) Charle s Heste r (June 5 , 1986 ) Robi nBarke r (Augus t 2 , 1986 )
IV . Discussio n Meeting s wer e hel dwit hplan t personne l t o discus s th e decorativ e chromiu m plating operatio nan

d possibl e emissio ntesting a t Brigg s an d Stratton . A . Genera l Th e Brigg s an

d Stratto nfacilit y

1 s a captiv e sho pprimaril y engage d 1ndecorativ e chromiu

m plating o f automotiv e doo r an d Ignitionlock s fo r Genera l Motor s an

d others . Th e plan t manufacturer s abou t 180,00 0 lock s pe r day . Decorativ e chromiu m plat e 1 s applie dt o zinc-cas t loc k component s an

d keys . Ther e ar e 84 0 employee s a t thi s plant , wit h approximatel y

2 2 1 nthe plating shop . Th e plating sho poperatin g schedul e 1 s 2 shifts/day , 5 days/week , 5 2 weeks/year . B . Proces s Descriptio n Ther e 1 s on e decorativ e chromiu m platin g Hn e a t thi s plant . Th e line i s equippe dwit hanautomati c hois t tha t transfer s eac hrac k o f part s throug ha serie s o f tanks . I t take s 7 0 t o 8 0 minute s fo r eac hrac k o f part s t o complet e th e plating cycle . Th e plating Hn e consist s o f the following tank s 1nseries : ( 1 ) alkalin e soa

k clean * ( 2 ) electroclean * ( 3 ) ad dpickl e ( 4 ) coppe r strik e (5 ) coppe

r plat e ( 6 ) chlorinate dwate r rinse * ( 7 ) ad dpickl e ( 8 ) brigh t nicke l plate * ( 9 ) chromiu

m plat e (10 ) bisulfit e rinse *

•Following Tank s 1 , 2 , 3 , 6 , an d 8 ar e a serie s o f 2 t o 3 countercurren t col dwate r rins e tanks . Following Tank 1 0 ar e a col drins e tan k an d a ho t rins e tank . Th e chromiu

m plating tan

k 1 s 2. 4 meter s (m ) ( 8 fee t [ft] ) long , 0. 9 m ( 3 ft ) wide , an

d 1. 3 m (4. 3 ft ) hig

han d ha s a capacit y

o f abou t 2,19 5 liter s (i ) (58 0 gallons ) o f plating solution . Th e platin g tan k



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hold s fou r rack s a t a time . Eac hrac k hold s abou t 10 0 work pieces . Th e platin g time pe r rac k pe r statio n1 s abou t 6 0 seconds . Th e norma l operatin g voltag e range s fro m 4 t o 5 volt s an

dth e amperag e range s fro m 1,20 0 t o 1,50 0 ampere s o f direc t current . Th e platin g solutio n1 s UDYLITE«' s CHROMYLITE * K-40-Z . Th e solutio n contain s abou t 27 0 gram s pe r Ute r (3 6 ounce s pe r gallon ) o f chromi c ad d an da smal l amoun t o f a fluoride catalyst . Th e norma l operatin g temperatur e o f th e solutio n1 s 42° C (107 8 F) . C . Emissio nContro l Brigg s an

dStratto nuse s a chemica l fume suppressan t (FOA M L0K ®L ) I nth e chromiu

m platin g solutio ntha t 1 s manufacture dandsupplie db y UDYLITE* . Th e fume suppressan t create s a laye r o f foam o nth e surfac e o f th e solutio nt o Inhibi t misting . Th e platin g operato r add s abou t 20 0 t o 50 0 milliliter s ( 7 t o 1 7 ounces ) o f FOAM-LOK * L t o th e bat hever y shift . Th e desire dthicknes s o f th e foam laye r 1 s approximatel y 2.5 4 centimeter s ( 1 inch ) t o contro l chromi c ad dmistin g adequatel y withou t creatin g a foa m drag-ou t problem

fro m th e platin g tank . Th e chromiu

m platin g tan k 1 s equippe dwit ha single-side dlatera l hoodwit htwo offtakes . Any chromi c ad demission s ar e capture db y th e hoodan dducte dt o a singl e packed-be dscrubber . Th e scrubbe r 1 s 1 3 year s ol dan dwa s manufacture db

y Ceilcote . D . Conclusion s Brigg s an

dStratto ni s a captiv e platin g sho pperformin g decorativ e chromiu m platin g o f locks . Emission s fro m th e chromiu

m platin g tank ar e controlle db

y a mis t suppressan t an da packed-be dscrubber . Ther e wer e no visibl e emission s fro

m th e chromiu

m platin g tank durin g th e visits . Therefore , thi s plan t 1 s a candidat e fo r emissio ntestin g t o obtai n uncontrolle demissio ndat a fo r a decorativ e chromiu m platin g operation , Inle t testin g woul dnee dt o b e performe dwhe nth e fum e suppressan t wa s no t 1 nuse . However , plan t personne l wer e ver y concerne dtha t Occupationa l Safet y an dHealt hAdministratio nguideline s fo r hexavalen t chromiu m ma y b e exceede dwhe nth e tank 1 s teste dfo r uncontrolle demission s withou t th e foa m blanket . A s a result , Brigg s an dStratton , th e EPA , an dMR I agree d t o conduc t ambien t ai r samplin g fo r chromiu m emission s Insid e th e platin g shopwhil e th e platin g tank wa s operate dwithou t a fume suppressant . I t wa s agree dtha t Peterso nAssociates , a consultan t t o th e Safet y Departmen t o f Brigg s an

dStratton , woul dperform th e ambien t ai r samplin g an dprovid e EP A wit ha tes t repor t summarizin g th e tes t condition s an dresult s o f th e ambien t ai r sampling . O nAugus t 2 , 1986 , Ms . Albert a Schumache r o f Peterso nAssociate s conducte dth e ambien t ai r samplin g unde r th e directio n o f Mr . Al Vervaer t o f EPA .



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