p. 1



# OAR Box 1313 Prepped by LaTeia Shed



## Document

Number: 

# 54 ) ll-B-2 8

Docket Number: 

# A-88-0 2

Printed 6/12/2008 9:03:29 AM

Sheet 54 of 99P. 2



# p i E 

# (? E 0 WE
\j

. ,- aaa 

## JAN 

## I 8199 | 

## j EF AAi R DOCKE

T TS-fc-2 8

A-88-0 2

Informatio n o n healt h o r ris k assessmen t wa s remove d from th e docket

. Thi s informatio n wa s compile d befor e th e Clea n Ai r Ac t Amendment s (1990 ) bu t wa s no t use d i n th e developmen t o f th e chromiu

mNESHAP
.P. 3 

# MRI ® 3i - e>-»:z 8 

# I € ^ilD V A-88-0

2 I f l l U •j MIDWES TRESEARC H INSTITUT E Suit e 35 0 40 1 Harriso n Oak

s Boulevar

d Cary , Nort h Carolin a 2751 3 Telephon e (919 ) 467-521 5 Facsimil e (919 ) 467-806 0



### Date : Jun e 24 , 198 7 Subject : Ris k Assessmen t Input s fo r Chromiu m Electroplatin g Operation s Chromiu m Electroplatin g NESHA P EP A Contrac t 68-02-3817 ; ESE D Projec t 85/02 a MR I Projec t 7717- K8 , r ^ i j \\ ] J.

From : Randy

Strait-^* " 

## JA N

# ! 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
Th e ris k assessmen t Input s fo r modelin g aggregat e exposur e an d incidenc e fo r chromiu m electroplatin g operation s wer e develope dfo r th e jo bsho pStandar dIndustria l Classificatio n(SIC ) cod e 347 1 an d fiv e two digi t SI C code s fo r captiv e shops . Tabl e 1 present s nationwid e hexavalen t chromiu m baselin e emissio nestimate s fo r al l jo bshop s tha t perform har d an ddecorativ e chromiu m plating , an

d Tabl e 2 present s baselin e emissio n estimate s fo r al l captiv e shops . Emissio nestimate s fo r captiv e har d platin g shop s ar e provide dfo r SI C code s 3 5 an d 37 , an

d estimate s fo r captiv e decorativ e platin g shop s ar e provide dfo r SI C code s 3 4 throug h 38 . Th e specifi c categorie s covere db y eac hSI C cod e ar e itemize d1 n Attachmen t 1 . Th e emissio nrate s shoul db e use da s Input s t o th e area sourc e algorith

m o f th e Huma nExposur e Mode l tha t wil l b e use dt o allocat e nationwid e emission s t o eac hcount y i nth e countr y

o nth e basi s o f employe e populations . Separat e ris k estimate s shoul db e generate dfo r hardan d decorativ e platin g operation s fo r bot hjoban d captiv e shops . Th e ris k assessmen t Input s fo r modelin g maximu m individua l risk s associate dwit huncontrolle dhexavalen t chromiu m emission s fro

m har dan d decorativ e chromiu

m platin g operation s ar e presente d1 nTable s 3 an d 4 , respectively . Input s ar e provide dfo r thre e mode l plant s (small , medium , an dlarge ) eac hfo r hardan d decorativ e platin g operation s tha t ar e representativ e o f differen t size s o f bot hjoban d captiv e shops . Th e base s fo r th e aggregat e exposur e an d incidenc e an

d maximu m individua l ris k input s wil l b e documente di na followu pmemorandum . Attachmen t

/ •

# fc TABL E 1 . NATIONWID E HEXAVALEN T CHROMIU M BASELIN E EMISSION

ESTIMATE S FORJO B SHOP S (SI C COD E 3471 )

Typ e o f operatio n
Hard chromiu

mplating , Mg/y r (tons/yr ) Decorativ e chromiu

mplating , Mg/y r (tons/yr ) Totals , Mg/y r (tons/yr ) Smal l plant s 6 0 (66 )

2. 0 (2.2 )

6 2 (68 ) Medium

plant s 8 0 (88 )

2. 3 (2.5 )

8 2 (90 ) Larg e plant s 26 0 (286 )

3. 0 (3.3 )

26 3 (290 ) Total s

40 0 (440 )

7. 3 (8.0 )

40 7 (448 )

### TABL E 2 . NATIONWID E HEXAVALEN T CHROMIU M BASELIN E EMISSION

ESTIMATE S FORCAPTIV E SHOP S BYSI C COD E

Typ e o f operation/SI C cod e
Hard chromiu

m plating , Mg/y r (tons/yr ) SI C cod e 3 5 SI C cod e 3 7 Subtotal s Decorativ e chromiu

mplating , Mg/y r (tons/yr ) SI C cod e 3 4 SI C cod e 3 5 SI C cod e 3 6 SI C cod e 3 7 SI C cod e 3 8 Subtotal s Totals , Mg/y r (tons/yr ) Smal l plant s

3 4 (37 ) 9 (10 ) 4 3 (47 )

1. 0 (1.1 ) 0.1 3 (0.14 ) 1. 5 (1.6 ) 0.0 2 (0.02 ) 0.1 7 (0.19 ) 2. 8 (3.1 )
4 6 (50 ) Mediu m plant s

4 7 (52 ) 1 3 (14 ) 6 0 (66 )

1. 0 (1.1 ) 0.1 4 (0.15 ) 1. 6 (1.8 ) 0.0 1 (0.01 ) 0.1 5 (0.16 ) 2. 9 (3.2 )
6 3 (69 ) Larg e

plant s

15 4 (170 ) 4 6 (51 ) 20 0 (221 )

1. 4 (1.5 ) 0.1 0 (0.11 ) 2. 0 (2.2 ) 0.0 2 (0.02 ) 0.4 0 (0.44 ) 3. 9 (4.3 )
20 4 (225 ) Total s

23 5 (259 ) 6 8 (75 ) 30 3 (334 )

3. 4 (3.7 ) 0.3 7 (0.41 ) 5. 1 (5.6 ) 0.0 5 (0.05 ) 0.7 2 (0.80 ) 9. 6 (10.6 )
31 3 (344 )



# u

- o CJ lP. 6



### TABL E 3 . RIS KASSESSMEN T INPUT S FORMODELINGMAXIMU M LIFETIM E RIS K ASSOCIATE D WIT H HEXAVALEN T CHROMIU M EMISSION S FROM HAR D CHROMIU

M PLATINGOPERATION S

Typ e o f sourc e Uncontrolle demissio n rat e pe r stack , kg/y r
Discharg e parameter s No . o f stack s Stac k height , m Stac k diameter , m

Vertica l area , m

Ven t typ e Ga s exi t velocity , m/ s
Ga s temperature , K Smal l
H (stack ) 

## 320

1 9. 1 1. 0



## 9. 1

0 (vertical )



## 1 5 300 Mode l



## 0 plan t siz e Mediu m
H (stack ) 1,52 0

1 9. 1 1. 1

10. 0

(vertical ) 

## 1 5 300 Larg e

H (stack ) 2,00 0 5,00 0 3,00 0

3 9. 1 0. 4 1. 1 1. 6
3. 6 10. 0 14. 6
0 (vertical )



## 1 5 300

/ /P. 7



### TABL E 4 . RIS KASSESSMEN T INPUT S FORMODELIN GMAXIMU M INDIVIDUAL RIS K ASSOCIATE D WIT H HEXAVALEN T CHROMIUM EMISSION S FRO

M DECORATIVE CHROMIU

M PLATINGOPERATION S

Typ e o f sourc e Uncontrolle demissio n rat e pe r stack , kg/yr
Discharg e parameter s No . o f stack s Stac k height , m Stac k diameter , m

2 

### Vertica l area , m

Ven t typ e Ga s exi t velocity , m/ s
Ga s temperature , K Smal l
H (stack ) 

## 1 3

1 9. 1 0. 7



## 6. 4

0 (vertical )



## 1 5 300 Mode l



## 0 plan t siz e Mediu m
H (stack )
2 5 2 6 2 6

3 9. 1 0. 7 0. 7 0. 7
6. 4 6. 4 6. 4 (vertical ) 

## 1 5 300 Larg e

H (stack )
6 0 12 0 12 0

3 9. 1 0. 6 0. 8 0. 8
5. 5 7. 3 7. 3
0 (vertical ) 

## 1 5 300Attachmen t 1

Title : ESTIMATED NUMBERO F HARD CHROMIU M EL£CTR0PU)T1N 6 CAPTIVE OPERATION S FORSI C CODE S 3 5 AN D 3 7 P. 8

SI C Cod e Industr y Tota l O f Al l Establishment s Electroolating

Establishment s Reoorte d (al l types ) Estiwte d.

Electrocutin g Establishment s • (al l types ) EstiMte dChromiu a

Electroolating Establishment s (40 * o f Est . Estab. )

3S1 1 Turbine s an

dTurbin e Generato r Set s 351 9 Interna l CombustionEngines , n.e.c. c 354 1 Machin e Tools , Heta l Cutting Type s 354 2 Machin e Tools , Meta l Forming Type s 354 4 Specia l Dies , Tools , Jigs , an dFixture s 354 5 Machin e Too l Accessorie s 354 6 Powe r Drive nHan

dTool s 354 7 Rollin

g Mil l Machinery 354 9 Metalworking Machinery , n.e.e . 3 9 9 Specia l Industr

y Machinery , n.e.c . 356 2 Bal l an

dRolle r Bearing s 336 6 SpeedChangers , Drives , an d6ear s 356 6 Powe r TransmissionEguipment , rue.c . 356 9 Genera l Industr

y Machinery , n.e. c 359 2 Carburetors , Pistons , Rings , Valve s 359 9 Machinery , excep t Electrical , n.e.c .
3 5 Subtota l 25 3 94 2 45 2 7,23 5 1,62 0 20 3 6 3 44 6 1,82 4 16 2 30 9 29 3 1,45 8 17 1 22,07 6
37,61 5 3 1 9 1 0 5 1 7 3 7 1 0 1 4 1 9 1 2 5 1 0 1 0 1 8 8 4

26 4 3

2 7 3 1 1 2 13 4 7 8 2 0 2 8 5 1 1 6 9 2 3 1 4 3 6 62 3
1,28 7 1 11 1 2 5 5 4 3 1 8 1 3 2 0 6 4

32 $
51 5

371 4 Moto r Vehicl e Part s an dAccessorie s 372 1 Aircraf t . 372 4 Aircraf t Engine s an dEngin e Part s 372 8 Aircraf t Equipment , n.e.c . 376 1 GuidedMissile s an dSpac e Vehicle s 376 4 Spac e PropulsionUnit s an dPart s 376 9 Soac e Vehicl e Equipment , rue.c . 379 5 Tank s an

dTan k Component s 379 9 TransportationEquipment , n.e.c . 3 7 Subtota l 2,42 0 16 5 34 0 96 6 2 9 2 7 4 9 4 4 42 5
4,46 5 7 6 1 9 2 8 35
. 8 5 2 2 1 16

7 2 3 3 9 7 7 1 7 7 4 3 3
17 6 34

2 6 7

1 0 1 6 3 1 7 3 2 1 1
13 7

Tota l for SI C 3 5 through3 7 42,08 0 44 0 1,62 9 65 2

a . Reference : 198 2 Censu s o f Manufacturers , Selecte dMeta l Finishing Operations .

U . S . Departmen t o f Commerce , Burea uo f Census . N C 82-S-8 . (Dat a fro m Table s 1 4 3 o f report) . b . Nuabe r o f establishment s wer e estiMte db y adjustin g establishment s reoorte dt o correc t fo r les s than10 0 oercent survey resoons e rat e an

destablishment s wit hles s thanfiv e eaoloyee s tha t wer e no t surveyed . c . No t elsewher e classified .Title i ESTINATE DNUMBE RO F DECORATIVE CHROMIU M ELECTROPLATINGCAPTIV E OPERATION S FO RSI C CODE S 3 4 THROUG H3 8 P. 9

SI C Cod e

342 1 342 3 342 5 342 9 343 1 343 2 344 2 344 4 3451 . 345 2 346 5 346 9 348 2 348 3 348 4 348 9 349 4 349 8 349 9
3 4

357 3 357 4 357 6 357 9 Industry

Cutler y Handan dEdg e Tools , rue.c . HandSaw s an

dSaw Blade s Hardwar e , n.e.c . Meta l Sanitary

War e Plumbing Fitting s an

dBras s Good s Meta l Doors , Sash , an

dTri m Shee t Heta l Wor k Screw Machin e Product s Bolts , Nuts , Rivets , an

dWasher s Automotiv e Stamping s Heta l Stampings , rue.c . SMI I Arms , Ammunition Ammunition , excep t Smal l Arms , rwe.c . SMI I Arm s Ordnanc e an

dAccessories , n.e.c . Valve s an dPip e Fitting s Fabricate dPip e an

dFitting s Fabricate dHeta l Products , rue.c . Subtota l

Electroni c Computing Equipmen t Calculatin g an

dAccountin g Machine s Scale s an dBalances , excep t Laboratory Offic e Machines , n.e.c. , an dTypewriter s Tota l O f Al l Establishment s

13 2 78 6 13 5 1,18 5 6 6 16 6 1,73 8 3,79 5 1,76 7 90 3 66 8 2,84 3 6 6 7 4 14 4 6 5 1,16 1 77 9 2,98 2
19,51 5

1,73 9 7 0 12 8 23 2 Electroplatin g Establishment s Reporte d (al l types )

1

7 5 0 1 1 10 9 3 27 9 1 4 1 8 8 6 22 67 5 7 5 4 4 6 8 2 8
53 8

4 7 3 2 1 6 Estiute d Electroplatin g Establishments' * (al l types )

3

2 U O 2 6 27 3 8 5 4 4 1 7 3 6 5 16 7 3 3 18 1 1 5 1 3 1 3 1 4 7 8 2 3 10 1
1,32 2

15 0 1 2 4 3 2 Estiaate dChromiu

m Electroolating Establishment s (40 Xo f Est . Estab. )

1 3 4 4 1 0 10 9 3 2 2 1 6 2 9 2 6 6 7 1 3 7 2 6 5 

# I
3 1 1 0 4 0

1
6 0 5 2 1 3
Subtota l 2,16 9 

### 7 0 19

8 ir%§



# 7Title i ESTIMATE D NUWE RO F DECORATIVE CHROMIU M ELECTR0PLAT1N 6 CAPTIV E OPERATION S FO RSI C CODE S 3 4 THROUG H 3 8 (CONTINUED ) P.1 0

SI C Cod e Industry Tota l O f Al l Establishment s

64 9 47 2 91 3 41 5 22 6 64 3 24 3 8 4 23 3 33 3 2,38 8 10 2 76 6 13 0 10 3 38 6 19 8 3,77 0 Electroplating Establishment s Reporte d (al l types )

77

2 7 3 0 3 6 2 6 2 6 5 7 4 2 4 9 8 1 3 4 4 1 1 1 1 2 4 7 26 8 Estiute d Electroplatin g Establishment s (al l types )

12

3 4 3 7 5 6 8 4 2 10 4 9 1 2 9 4 6 21 6 2 7 IS O 1 9 1 7 5 7 5 1,12 6 EstiMte dChromiu m Electroplating Establishment s (40 * o f Est . Estab. )

4 9 1 7 3 0 2 7 1 7 4 2 4 5 4 1 8 8 6 1 1 6 0 6 7 2 3 0 45 0 361 3 Switchgea r an

dSwitchboar dApparatu s 362 1 Motor s an

dGenerator s 362 2 Industria l Control s 364 3 Current-Carryin g Wirin g Device s 364 4 Noncurrent-Carryin g Wirin g Device s 364 5 Residentia l Lightin g Fixture s 364 6 Commercia l Lightin g Fixture s 364 7 Vehicula r Lightin g Equipmen t 364 8 Lightin g equipment , rue.c . 366 1 Telephon e an

dTelegraphApparatu s 366 2 Radi o an

dT V Communicatio nEquipmen t 367 1 Electro nTubes , al l Type s 367 4 Semiconductor s an dRelate dDevice s 367 5 Electroni c Capacitor s 367 6 Electroni c Resistor s 367 7 Electroni c Coil s andTransformer s 367 8 Electroni c Connector s 367 9 Electroni c Components , rue.c . 3 6 Subtota l 12,05 4 75 6 2,16 6 86 6

375 1 Motorcycles , Bicycles , an dPart s
3 7 Subtota l 27 3
27 3 1 1

1 1 4 1

4 1 1 6

1 6

381 1 Engineerin g andScientifi c Instrument s 382 2 Environmenta l Control s 382 3 Proces s Contro l Instrument s 382 4 Flui dMeter s an

dCounting Device s 382 5 Instrument s t o Measur e Electricit y 382 9 Measuring an

dControllin g Devices , n.e.c . 387 3 Watches , Clocks , an dWatchcase s
3 8 Subtota l 77 1 24 5 62 7 14 5 74 9 71 7 23 7
3.49 1 9

1 6 1 1 4 2 5 9 1 5
8 9 3 6

3 4 3 1 7 5 5 3 0 4 5

23 8 1 4

1 4 1 2 3 2 2 1 2 I B
9 5

Tota l fo r SI C 3 4 through3 8 37,50 2 1.46 4 3,96 3 1,56 6
Reference s 198 2 Census^* / Manufacturers , Selecte dMeta l Finishin g Ooerations .

U . S . Departmen t o f Commerce , Burea uo f Census . M C 82-S-8 . (Oat a fro m Table s 1 ( 3 o f reoort) . Nuabe r o f establishment s wer e estiMte db y adjustin g establishment s reoorte dt o correc t fo r les s tha n10 0 oercen t survey respons e rat e an

destablishment s wit hles s tha nfive employee s tha t wer e no t surveyed .

c . No t elsewher e classified .