### Interagency Review Material

-- DRAFT Summary of RTR Residual Risks

Interagency Review Material

- Provided in Response to OMB Request

This table is intended to be a summary of risk information provided in the RTR Federal Register notices for each covered RTR source category as of 10/ 2 1/11 . It may be incomplete, it may contain errors

, and may

not reflect the precise details of the rules for each source category. For more detailed and accurate information check the appropriate Federal Register notice for information relevant to each source category.



### Page 1 Rule Dates Baseline risk (a, b) Risk after RTR (a, b)

Prop Final MIR (in 1

million)

(driver) HI

(driver) Incidence K Pop.

> 10 - 6 Risk

Accepta bility

Decision Ample Margin of

Safety Decision Notes MIR (in 1

million)

(driver) HI

(driver) Incidence K Pop.

> 10 - 6

Coke ovens 8/9/2004 4/15/2005 300

(coke oven

emissions) 0.4 0.06 500 acceptable adopt LAER limits

for MACT

- track

sources 300

(coke oven

emissions) 0.4 0.06 300

Gasoline

Distribution 8/10/2005 4/6/2006 5

(benzene) 0.2 0.004 6 acceptable no controls; re

propose MACT 5

(benzene) 0.2 0.004 6

Cooling towers 10/24/2005 4/7/2006 0.4 0.002 NIA 0 acceptable no controls; re

propose MACT 0.4 0.002 NIA 0

Hospital

sterilizers 10/24/2005 4/7/2006 90

(ethylene oxide) 0.03 0.04 250 acceptable no controls; re

propose MACT 90

(ethylene oxide) 0.03 0.04 250

Mag tape 10/24/2005 4/7/2006 0.01 0.3 NIA 0 acceptable no controls; re

propose MACT 0.01 0.3 NIA 0

Dry Cleaners 12/21/2005 7/27/2006

----- ----- ----- ----- ----- ----- c

----- ----- ----- -----

major

----- ----- 50

- 400

(perc) 2

(perc) NIA 40

- 400 "risks are

acceptable

after

application of

Option 1

controls" require enhanced

LDAR 20

- 200

(perc) 0.2 0.002

-

0.003 2

- 55

area

----- ----- 30

- 220

(perc) 0.1 0.4

- 4 960

- 56,000 acceptable require enhanced

LDAR; eliminate

transfer machines 20

- 200

perc) NIA NIA NIA

co

- res

----- ----- 4,000

- 30,000

(perc) 20

(perc) 0.2

- 2 NIA unacceptable eliminate PCE

emissions d 0 0 0 0

HON 6/14/2006 12/21/2006 100

(many, see

note) 1

(maleic

anhydride) 0.14 2,000 acceptable no controls; re

propose MACT e 100

(many, see note) 1

(maleic

anhydride) 0.14 2,000

### Interagency Review Material

-- DRAFT Summary of RTR Residual Risks

Interagency Review Material

- Provided in Response to OMB Request

This table is intended to be a summary of risk information provided in the RTR Federal Register notices for each covered RTR source category as of 10/ 2 1/11 . It may be incomplete, it may contain errors

, and may

not reflect the precise details of the rules for each source category. For more detailed and accurate information check the appropriate Federal Register notice for information relevant to each source category.



### Page 2 Rule Dates Baseline risk (a, b) Risk after RTR (a, b)

Prop Final MIR (in 1

million)

(driver) HI

(driver) Incidence K Pop.

> 10 - 6 Risk

Accepta bility

Decision Ample Margin of

Safety Decision Notes MIR (in 1

million)

(driver) HI

(driver) Incidence K Pop.

> 10 - 6

Halogenated

solvent cleaners 8/17/2006

10/20/08 NA 100

(perc, MC,

TCE) 0.2

- 7.0 0.55 8,000 acceptable proposed facility

wide emission limit s

on carcinogenic HAP

from halogenated

solvent cleaners f

Petroleum

refineries 9/4/2007 NA 70

(Bz, naph,

POM, EDB 0.3 0.04

- 0.09 460 acceptable proposed (1) no

controls or (2)

controls for storage

vessels, EBUs, and

cooling towers g, h

Polysulfide

Rubber 12/12/2007 12/16/2008 0 <.01 0 0 acceptable no controls; re

propose MACT 0 <.01 0 0

Ethylene

Propylene

Rubber 12/12/2007 12/16/2008 0 0.5 0 0 acceptable no controls; re

propose MACT 0 0.5 0 0

Butyl Rubber 12/12/2007 12/16/2008 0 0.2 0 0 acceptable no controls; re

propose MACT 0 0.2 0 0

Neoprene 12/12/2007 12/16/2008 0 0.8 0 0 acceptable no controls; re

propose MACT 0 0.8 0 0

Epoxy Resins 12/12/2007 12/16/2008 0.1 0.08 0.00002 0 acceptable no controls; re

propose MACT 0.1 0.08 0.00002 0

Non

- nylon

Polyamides 12/12/2007 12/16/2008 0.4 0.3 0.00003 0 acceptable no controls; re

propose MACT 0.4 0.3 0.00003 0

Acetal Resins 12/12/2007 12/16/2008 0.3 0.2 0.00004 0 acceptable no controls; re

propose MACT 0.3 0.2 0.00004 0

Hydrogen

Fluoride 12/12/2007 12/16/2008 0 <.01 0 0 acceptable no controls; re

propose MACT 0 <.01 0 0

Marine Tank

Vessel Loading 10/21/2010 4/21/2011 20

(benzene) 0.3 0.02 140 acceptable no controls; re

propose MACT i 50

(benzene) 0.3 0.02 140

Pharmaceuticals 10/21/2010 4/21/2011 3

(ethylene

dichloride) 0.2 0.0008 2 acceptable no controls; re

propose MACT 3

(ethylene

dichloride) 0.2 0.0008 2

### Interagency Review Material

-- DRAFT Summary of RTR Residual Risks

Interagency Review Material

- Provided in Response to OMB Request

This table is intended to be a summary of risk information provided in the RTR Federal Register notices for each covered RTR source category as of 10/ 2 1/11 . It may be incomplete, it may contain errors

, and may

not reflect the precise details of the rules for each source category. For more detailed and accurate information check the appropriate Federal Register notice for information relevant to each source category.



### Page 3 Rule Dates Baseline risk (a, b) Risk after RTR (a, b)

Prop Final MIR (in 1

million)

(driver) HI

(driver) Incidence K Pop.

> 10 - 6 Risk

Accepta bility

Decision Ample Margin of

Safety Decision Notes MIR (in 1

million)

(driver) HI

(driver) Incidence K Pop.

> 10 - 6

Printing &

Publishing 10/21/2010 4/21/2011 4

(ethyl benzene) 0.08 0.0006 0.3 acceptable no controls; re

propose MACT 4

(ethyl benzene) 0.08 0.0006 0.3

Epichlorohydrin

Elastomers

Production 10/21/2010 4/21/2011 10

(ethylene oxide) 0.1 0.0001 0.8 acceptable no controls; re

propose MACT 10

(ethylene oxide) 0.1 0.0001 0.8

HypalonTM

Production 10/10/2008 4/21/2011 1

(carbon

tetrachloride) 0.1 0.0004 0.4 acceptable no controls; re

propose MACT j NA NA NA NA

Nitrile

Butadiene

Rubber

Production 10/21/2010 4/21/2011 2

(acrylonitrile,

1,3

- butadiene) 0.009 0.0004 0.07 acceptable no controls; re

propose MACT 2

(acrylonitrile,

1,3

- butadiene) 0.009 0.0004 0.07

Polybutadiene

Rubber

Production 10/21/2010 4/21/2011 30

(1,3

- butadiene) 0.3 0.003 24 acceptable no controls; re

propose MACT 30

(1,3

- butadien e) 0.3 0.003 24

Styrene

But adiene

Rubber and

Latex

Production 10/21/2010 4/21/2011 10

(1,3

- butadiene) 0.2 0.004 25 acceptable no controls; re

propose MACT 10

(1,3

- butadiene) 0.2 0.004 25

Steel Pickling

--

HCl Process

Facilities and

Hydrochloric

Acid

Regeneration

Plants 10/21/2010 NA 2

(chlor ine) NA 0.05

(HI>1) acceptable no controls; re

propose MACT l

Hard Chromium

Electroplating 10/21/2010 70

(Cr VI) 0.06 0.1

- 0.8 360

- 14,200 acceptable no controls; re

propose MACT k, l

### Interagency Review Material

-- DRAFT Summary of RTR Residual Risks

Interagency Review Material

- Provided in Response to OMB Request

This table is intended to be a summary of risk information provided in the RTR Federal Register notices for each covered RTR source category as of 10/ 2 1/11 . It may be incomplete, it may contain errors

, and may

not reflect the precise details of the rules for each source category. For more detailed and accurate information check the appropriate Federal Register notice for information relevant to each source category.



### Page 4 Rule Dates Baseline risk (a, b) Risk after RTR (a, b)

Prop Final MIR (in 1

million)

(driver) HI

(driver) Incidence K Pop.

> 10 - 6 Risk

Accepta bility

Decision Ample Margin of

Safety Decision Notes MIR (in 1

million)

(driver) HI

(driver) Incidence K Pop.

> 10 - 6

Decorative

Chromium

Electroplating 10/21/2010 70

(Cr VI) 0.06 0.01

- 0.08 30

- 390 acceptable no controls; re

propose MACT l

Chromium

Anodizing

Tanks 10/21/2010 5

(Cr VI) 0.004 0.001

-

0.003 0.5

- 2.7 acceptable no controls; re

propose MACT l

Shipbuilding &

Ship Repair

(surface coating) 12/21/2010 10/31/2011 10

(ethyl benzene) 0.5

(xylenes) 0.003 4 acceptable no controls; re

propose MACT 10

(ethyl benzene) 0.5

(xylenes) 0.003 3.7

Wood Furniture

Manufacturing

Operations 12/21/2010 10/31/2011 20

(formaldehyde) 0.4

(hexane) 0.005 20 acceptable proposed

formaldehyde

emission limit 10

(ethyl benzene,

formaldehyde) 0.4

(hexane) 0.005 20

Primary Lead

Production 2/17/2011 10/31/2011 30

(cadmium) 1

(cadmium)

50 (lead) 0.0008 4.9 unacceptable

(primarily

due to lead) to get to acceptable

level, proposed stack

emission cap and air

lead concentration

limit in order to

reduce ambient air

concentrations to

NAAQS level; no

additional controls

for AMOS 20

(cadmium) 1 (cadmium)

8 (lead) 0.008 110

### Interagency Review Material

-- DRAFT Summary of RTR Residual Risks

Interagency Review Material

- Provided in Response to OMB Request

This table is intended to be a summary of risk information provided in the RTR Federal Register notices for each covered RTR source category as of 10/ 2 1/11 . It may be incomplete, it may contain errors

, and may

not reflect the precise details of the rules for each source category. For more detailed and accurate information check the appropriate Federal Register notice for information relevant to each source category.



### Page 5 Rule Dates Baseline risk (a, b) Risk after RTR (a, b)

Prop Final MIR (in 1

million)

(driver) HI

(driver) Incidence K Pop.

> 10 - 6 Risk

Accepta bility

Decision Ample Margin of

Safety Decision Notes MIR (in 1

million)

(driver) HI

(driver) Incidence K Pop.

> 10 - 6

Secondary Lead

Smelting 5/19/2011 50

(arsenic) 0.6

(arsenic)

20 (lead) 0.02 128 unacceptable

(primarily

due to lead,

allowable

cancer risk of

200 in a

million) to get to acceptable

level, proposed to

reduce stack emis by

factor of 2 for non

lead HAP and order

of magnitude for lead

stack emis; no

additional controls

for AMOS

for fugitives

- total

enclosure or develop

monitoring program 10

(arsenic) 0.6 (arsenic)

1 (lead) 0.01

Oil and Natural

Gas Production 8/23/2011 40

(POM,

benzene) 0.1

(naphthale

ne) 0.007

- 0.02 160 unacceptable

due to

allowable

emissions

from glycol

dehydrators

(400 in a

million), but

acceptable

based on

actuals proposed to eliminate

the alternative

compliance option

from existing glycol

dehydrator MACT

requirements g

Natural Gas

Transmission

and Storage 8/23/2011 30

- 90

(benzene) 0.4

(benzene) 0.0003

-

0.001 2.5 acceptable proposed to eliminate

the alternative

compliance option

from existing glycol

dehydrator MACT

requirements g 30

- 90 0.4 0.0003

-

0.001 2.5

### Interagency Review Material

-- DRAFT Summary of RTR Residual Risks

Interagency Review Material

- Provided in Response to OMB Request

This table is intended to be a summary of risk information provided in the RTR Federal Register notices for each covered RTR source category as of 10/ 2 1/11 . It may be incomplete, it may contain errors

, and may

not reflect the precise details of the rules for each source category. For more detailed and accurate information check the appropriate Federal Register notice for information relevant to each source category.



### Page 6 Rule Dates Baseline risk (a, b) Risk after RTR (a, b)

Prop Final MIR (in 1

million)

(driver) HI

(driver) Incidence K Pop.

> 10 - 6 Risk

Accepta bility

Decision Ample Margin of

Safety Decision Notes MIR (in 1

million)

(driver) HI

(driver) Incidence K Pop.

> 10 - 6

Ferroalloys

Production 10/31/2011 80

(arsenic, nickel,

Cr VI) 90

(manganes

e) 0.002 26 unacceptable to get to acceptable

level, proposed to

reduce fugitive

emissions by total

enclosure (or

fenceline

monitoring); no

additional controls

for AMOS m 5

(arsenic,

nickel, Cr 6) 2

(Mn) 0.0004 1,300

Mineral Wool

Production 10/31/2011 4

(formaldehyde) 0.04

(formaldeh

yde) 0.0004 1.7 acceptable no controls; re

propose MACT

Wool Fiberglass 10/31/2011 40

(Cr VI) 0.2

(formaldeh

yde) 0.05 850 acceptable proposed limit on lbs

of total chromium

compounds per ton of

glass pulled n 20

(formaldehyde) 0.2

(formaldehy

de) 0.02 282

Primary

Aluminum 10/31/2011 30

(PAH) 0.4

(HF) 0.005 41 acceptable after proposed

controls allowable

cancer risk will be 30

in 1 million; AMOS

achieved 30

(PAH) 0.4

(HF) 0.005 41

Notes:

Information in italics ha s not yet been published in the Federal Register and is still considered draft.

(a) Risks are based on actual emissions and are scaled up to represent the entire universe of facilities, where applicable

(b) NIA = no information available; NA = not applicable

(c) ranges of risk values due to range in perchloroethylene UREs

(d) preamble never explicitly said risks were unacceptable; this is actually an acceptability decision, not an ample margin of safety decision

(e) for the facilities with risks greater than 10 in 1 million, drivers include: ethylene oxide, 1,3

- butadiene, benzene, 4,4

- methylenedianiline, acrylonitrile, and ethylene dichloride

(f) re

- proposed and then remanded

(g) range of values due to range of benzene UREs

### Interagency Review Material

-- DRAFT Summary of RTR Residual Risks

Interagency Review Material

- Provided in Response to OMB Request

This table is intended to be a summary of risk information provided in the RTR Federal Register notices for each covered RTR source category as of 10/ 2 1/11 . It may be incomplete, it may contain errors

, and may

not reflect the precise details of the rules for each source category. For more detailed and accurate information check the appropriate Federal Register notice for information relevant to each source category.



### Page 7 Rule Dates Baseline risk (a, b) Risk after RTR (a, b)

Prop Final MIR (in 1

million)

(driver) HI

(driver) Incidence K Pop.

> 10 - 6 Risk

Accepta bility

Decision Ample Margin of

Safety Decision Notes MIR (in 1

million)

(driver) HI

(driver) Incidence K Pop.

> 10 - 6

(h) the final rule was withdrawn; not on RTR website; new proposal expected 1 2/15/11

(i) corrected emissions data received during comment period resulted in an increase in the source category MIR

(j) the one remaining Hypalon TM facility closed between original proposal and supplemental proposal

(k) range of incidence & pop exp #s due to conservative & supplemental analyses

(l) re

- proposal expected January 2010

(m) as a MACT "fix," also proposed limits for HCl, HF, and formaldehyde and ACI for Hg; as part of control technology review, proposed lower stack emission limits

(n) as a MACT "fix," limits were also set for formaldehyde to address MACT

- era HAP surrogacy issue