1 

Technical Support Document (TSD) 

for the June Revisions to the Transport Rule 

Docket ID No. EPA-HQ-OAR-2009-0491 

Final June Revisions Rule Significant Contribution Assessment TSD 

U.S. Environmental Protection Agency 

Office of Air and Radiation 

June 2012 
2 

This Technical Support Document (TSD) presents quantitative assessments of the 

relationship between the final February revisions to the Transport Rule, the final June revisions 

rule, and the original analysis conducted for the final Transport Rule informing the Rule’s 

determination of emissions that significantly contribute to nonattainment or interfere with 

maintenance of the National Ambient Air Quality Standards (NAAQS) in downwind states. As 

conducted for the final Transport Rule, EPA re-iterated its analysis of the downwind air quality 

impacts resulting from the rule’s projected SO2 emission reductions using the Air Quality 

Assessment Tool (AQAT) and taking the final February revisions rule and the final June 

revisions rule into account. In this document, EPA also assesses the relationship between the 

NOx emission inventories in each affected state and the finalized February revisions and final 

June revisions to annual NOx and ozone-season NOx budgets under the Transport Rule programs. 

This technical support document uses results for the revisions described in the final 

February revisions rule1

,

2

, as well as those revisions described in the final June revisions rule.3 

The final February revisions rule included increases to 2014 SO2 budgets for Texas, New York, 

and Wisconsin. For the final June revisions rule, EPA has assessed the collective impact of all of 

the revisions being finalized. The final June revisions rule includes increases to 2014 SO2

budgets for Georgia, Indiana, Kansas, Nebraska, New York, Ohio, and South Carolina. EPA has 

assessed the emission increases collectively, for the remedy scenario, the $500/ton cost threshold 

scenario, and the $2,300/ton cost threshold scenario. 

For purposes of assessing the impact of state SO2 budget increases under the final June 

revisions rule in AQAT (including the budget increases under the final February revisions rule), 

EPA assumed that the state SO2 budget increases would result in an equivalent, ton for ton, 

increase in 2014 SO2 emissions (beyond the level previously projected in the final Transport 

Rule). Therefore, this TSD refers to the “final emission increases” assumed to result from the 

final budget increases and analyzes the impact of these emission increases. 

This TSD is organized as follows: 

A. Summary of EPA’s Analysis to Quantify Emissions that Significantly Contribute to 

Nonattainment or Interfere with Maintenance for the Final June Revisions Rule.

B. Analysis of Significant Contribution and Interference with Maintenance for SO2 Emissions 

from Georgia, Indiana, Kansas, Nebraska, New York, Ohio, and South Carolina Using 

AQAT for the Final June Revisions Rule.

C. Presentation of Annual and Ozone-Season NOx Emission Increases Relative to Annual and 

Ozone-Season Total NOx Emissions for the Final June Revisions Rule.

 

1

 See preamble to the “Revisions to Federal Implementation Plans to Reduce Interstate Transport of Fine Particulate 

Matter and Ozone”, 77 FR 10324. 

2

 See the “Final Revisions Rule Significant Contribution Assessment Technical Support Document (TSD)” (EPAHQ-OAR-2009-0491-4956). 

3

 See preamble to the “Revisions to Federal Implementation Plans to Reduce Interstate Transport of Fine Particulate 

Matter and Ozone“, 77 FR 10350, where the June revisions were first proposed as well as the final preamble to the 

“Federal Implementation Plans to Reduce Interstate Transport of Fine Particulate Matter and Ozone” where those 

revisions were finalized. 
3 

A. Summary of EPA’s Analysis to Quantify Emissions that Significantly Contribute to 

Nonattainment or Interfere with Maintenance for the Final June Revisions Rule.

Sections V and VI of the final Transport Rule (TR) preamble (Federal Implementation 

Plans: Interstate Transport of Fine Particulate Matter and Ozone and Correction of SIP 

Approvals, 76 FR 48208 (August 8, 2011)) describe EPA’s approach to identify upwind states’ 

emissions that significantly contribute to downwind nonattainment or interfere with downwind 

maintenance of the 1997 and 2006 fine particle (PM2.5) National Ambient Air Quality Standard 

(NAAQS) and the 1997 ozone NAAQS. This is further described in the related Significant 

Contribution and State Emissions Budgets Final Rule TSD (EPA-HQ-OAR-2009-0491-4456). 

As described in the preamble for the final TR, the approach uses air quality modeling to identify 

monitoring sites with projected nonattainment and maintenance problems (receptors) for the 

PM2.5 and ozone NAAQS as well as upwind states whose contributions to these receptors meet 

or exceed specified threshold amounts. See sections V.C and V.D in the TR preamble and the 

associated TR Air Quality Modeling Final Rule TSD (EPA-HQ-OAR-2009-0491-4140) for a 

detailed discussion of these air quality analyses. 

As described in TR preamble section VI, after identifying upwind-to-downwind linkages, 

EPA uses a multi-step process to quantify each state’s significant contribution to nonattainment 

and interference with maintenance. First, EPA identifies the power sector emissions projected to 

remain at ascending cost thresholds of emissions reductions for each state. See section B in the 

Significant Contribution and State Emissions Budgets Final Rule TSD for discussion of this 

analysis. Next, EPA uses an AQAT to estimate the air quality impact of the upwind emission 

reductions at each cost threshold on downwind receptors with problems attaining and 

maintaining the applicable NAAQS. See section C in the Significant Contribution and State 

Emissions Budgets Final Rule TSD for discussion of the development and use of AQAT. 

The analysis in this TSD uses the annual PM2.5 and 24-hour PM2.5 AQAT to estimate 

the impacts of the final SO2 emission increases on downwind air quality (including the emissions 

from the final February revisions rule) in the context of the air quality component of the 

determination of significant contribution in 2014; it also provides an estimate of the effect of 

these final SO2 budget revisions on the “remedy” control scenario analyzed for the final 

Transport Rule in 2014. For the final June revisions rule, the final budget increases were 

investigated in a collective manner to show the estimated air quality impacts from all of the 

state’s emissions following the finalization of the June revisions rule on the downwind monitors 

(inclusive of the final February revisions rule). Two assessments were performed: 

 Significant Contribution Assessment: Following the methodology and using the 

emissions for the air quality assessment of significant contribution and interference 

with maintenance from the final TR and the final February revisions rule, we assess 

whether the SO2 emission increases have the potential to change the patterns of 

attainment, nonattainment, and maintenance projected at the $500/ton and $2,300/ton 

cost threshold levels for annual PM2.5 and for 24-hour PM2.5 in 2014 (compared 

with the AQAT analysis from the final TR and the final February revisions rule). 

Specifically, we investigate if each state’s significant contribution and interference 

with maintenance is resolved at $500/ton and/or $2,300/ton to the receptor(s) to 

which they are linked (as was concluded in the multi-factor assessment for the final 

TR). For each cost threshold level analyzed, on a receptor-by-receptor basis, the 
4 

emissions reductions for each upwind state are associated with one of two cost 

threshold levels (either the 2014 base case emissions level or the particular threshold 

cost level being analyzed) depending on whether the upwind state is “linked” to that 

receptor or if the receptor is located within the state. States that are contributing 

above the respective air quality threshold (i.e., greater than or equal to 1 percent 

contribution of total sulfate and nitrate for the annual and 24-hour PM2.5 to the 

monitor), as well as the state containing the monitor, make SO2 emissions reductions 

available at the particular cost threshold level. The emissions for all other states are 

at the 2014 base case level. 

 “Remedy” Control Scenario Assessment: In this case, we estimate the resulting air 

quality and patterns of attainment, nonattainment, and maintenance when the 

emissions from all states are at the level from the 2014 remedy control scenario 

(regardless of whether or not they are linked to a particular receptor). Emissions are 

at the level for the final TR remedy control scenario except for emissions from the 

states affected by the final February revisions rule or the final June revisions rule, 

where their emissions are increased by the amount of the related revisions. 

For the final June revisions rule, this analysis reaches the same conclusion as EPA’s 

assessment of significant contribution to nonattainment and interference with maintenance from 

the final TR and from the final February revisions rule. There are no estimated changes in the 

patterns of attainment, nonattainment, and maintenance at the $500/ton cost threshold level for 

any receptors linked to Georgia, Indiana, Kansas, Nebraska, New York, Ohio, and South 

Carolina. Furthermore, there are no estimated changes in the patterns of attainment, 

nonattainment, and maintenance at the $2,300/ton cost threshold level for any receptors linked to 

Indiana, New York, and Ohio (relative to the analysis from the final TR and the final February 

revisions rule). 

EPA concludes that the SO2 emission budget increases in the final June revisions rule 

(added incrementally to the final February revisions rule emissions) would not substantially 

affect the air quality component of the multifactor test and, thus, would not affect EPA’s 

conclusions in the final TR identifying $2,300/ton and $500/ton as the appropriate SO2 cost 

thresholds for “Group 1” and “Group 2” states, respectively. 

Therefore, for Georgia, Kansas, Nebraska, and South Carolina, significant contribution 

and interference with maintenance is the amount of emissions that can be removed at the 

$500/ton cost threshold. For Indiana, New York, and Ohio, EPA concludes that for these states, 

their significant contribution and interference with maintenance is the amount of emissions that 

can be removed at the $2,300/ton cost threshold. In addition, there are no estimated changes in 

the patterns of attainment, nonattainment, and maintenance in the 2014 “remedy” control 

scenario for any of the final individual emission changes for Georgia, Indiana, Kansas, Nebraska, 

New York, Ohio, and South Carolina. 

. 

B. Analysis of Significant Contribution and Interference with Maintenance for SO2 Emissions 

from Georgia, Indiana, Kansas, Nebraska, New York, Ohio, and South Carolina Using 

AQAT for the Final June Revisions Rule.
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EPA assessed the impacts of the SO2 budget changes in the final June revisions rule, 

collectively. The total budget changes are presented in Table 1 (see the preamble of the final 

June revisions rule for details about the emission changes). The states that EPA investigated 

were Georgia, Indiana, Kansas, Nebraska, New York, Ohio, and South Carolina. The budget 

changes were assessed using the 2014 $500/ton and $2,300 cost threshold scenarios and the 

“remedy” control emissions scenario. All of these scenarios included the emission increases 

from the final February revisions rule. Note that the 2014 base case emissions were also used 

and that, for this case, EPA assumed no emission increases would be made to account for either 

of the final revisions rules. 

As described in section A, EPA performed two assessments, a Significant Contribution 

Assessment and a “Remedy” Control Scenario Assessment. For each scenario for the two 

assessments, for comparison to see the affect of the emissions in the final June revisions rule, 

EPA also presents the results of the AQAT assessment from the final February revisions rule and 

from the final TR. 

Collective Assessment: EPA used AQAT to estimate the air quality impacts in the 

significant contribution and remedy assessments when all states included in the final June 

revisions rule simultaneously increased their emissions. The specific receptors to which each of 

the states included in the final June revisions rule are “linked”are listed in the following 

paragraphs. 

Georgia: Georgia was “linked” to the 24-hour PM2.5 receptors 10730023 and 10732003 

in Jefferson County, Alabama and to the same receptors for annual PM2.5. There is also a 

receptor located in Georgia, identification number 131210039. 

Indiana: Indiana contributed above the threshold to all 24-hour PM2.5 receptors with 

base case maximum design values greater than or equal to 35.5 g/m3

 (except for receptor 

420710007 in Lancaster County, Pennsylvania). Indiana also contributed at or above the 

threshold to all of the annual PM2.5 receptors with 2012 base case design values greater than or 

equal to 15.05 g/m3. 

Kansas: Kansas was “linked” to the 24-hour PM2.5 receptors identification numbers 

550790010, 550790026, 171191007, 170316005, and 170310052 in Wisconsin and Illinois. 

Kansas did not contribute to any of the annual PM2.5 receptors with 2012 base case design 

values greater than or equal to 15.05 g/m3

. 

 Nebraska: Nebraska was “linked” to the 24-hour PM2.5 receptors 550790010 and 

550790026 in Wisconsin. Nebraska did not contribute to any of the annual PM2.5 receptors with 

2012 base case design values greater than or equal to 15.05 g/m3

. 

New York: The monitors for 24-hour PM2.5 to which New York was linked in the TR 

were: 261470005; 261610008; 261630016; 261630019; 261630033; 390350045; 390350060; 

390350065; 420710007; and 421330008. The monitors for annual PM2.5 to which New York 

was linked in the TR were: 390350038; 390350045; 390350060; 390350065; and 420030064. 

Ohio: Ohio contributed above the threshold to all 24-hour PM2.5 receptors with base case 

maximum design values greater than or equal to 35.5 g/m3

. Ohio also contributed at or above 

the threshold to all of the annual PM2.5 receptors with 2012 base case design values greater than 

or equal to 15.05 g/m3

. 

South Carolina: South Carolina did not contribute above the threshold to any of the 24-

hour PM2.5 receptors identified in the TR (i.e., it was not “linked”). For annual PM2.5, South 

Carolina was “linked” to receptor 131210039 in Fulton County, Georgia. 
6 

As seen in Tables 2 and 3 for annual PM2.5 average and maximum design values and for 

Tables 4 and 5 for 24-hour PM2.5 average and maximum design values, the resulting change in 

concentration at each of the TR receptors was not sufficient to alter the conclusions about its 

status (i.e., estimated to be in attainment, maintenance, or nonattainment) at the $500/ton or 

$2,300/ton cost threshold levels in 2014. EPA concludes that assessment of alternative cost 

threshold levels were unnecessary. EPA also concludes that each state appropriately maintains 

its classification as “Group 1” or “Group 2” from the final TR. 

Similarly, As seen in Tables 2, 3, 4, and 5 under the remedy assessment, the estimated 

patterns of attainment, maintenance, and nonattainment were unchanged relative to the final TR 

assessment (including the final February revisions rule). 

C. Presentation of Annual and Ozone-Season NOx Emission Increases Relative to Annual and 

Ozone-Season Total NOx Emissions for the Final June Revisions Rule.

The final June revisions rule revises the state budgets for annual and ozone-season NOx. 

These changes represent very limited shares of the total NOx emissions from all source-sectors in 

each affected state, as modeled in the air quality projections under the final Transport Rule 

“remedy” control scenario analysis in 2014, and very limited shares of the total NOx emissions 

from all source-sectors in each affected state (when the final February revisions rule is also 

considered). See the excel workbook “EmissionsSummaries_TR_remedyNOx_OS.xlsx” for the 

ozone-season emission summary for the 2014 remedy control scenario for NOx. See the excel 

workbook “TransportRuleFinal_EmissionsSummaries”, EPA-HQ-OAR-2009-0491-4206, for the 

2014 remedy control scenario for annual NOx. See the Emissions Inventory Final Rule 

Technical Support Document (TSD), EPA-HQ-OAR-2009-0491-4522, for additional details 

about the emissions inventories. 

Tables 6 and 7 illustrate the relationship of the final June revisions rule state budget 

revisions to each state’s total emissions (from all sources) for annual NOx and ozone-season NOx

respectively. The total emissions include the NOx from the final February revisions rule 

(assuming that there is a one-to-one correlation between the budget increase and an increase in 

emissions). The state budget revisions in the final June revisions rule represent small 

percentages of each state’s total emissions; therefore, EPA believes that the impact of these 

revisions would be limited to comparatively small changes to the 2014 ozone design values 

projected in the final Transport Rule air quality analysis. 
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Table 1. SO2 EGU Emissions From Fossil and Biomass Units* Used in AQAT (tons of SO2) in 

2014 in the Final TR Including the Emissions in the Final February Revisions Rule as well as the 

Additional Emission Increases in the Final June Revisions Rule. 

2014 Base 

Case 

$500/ton 

Cost 

Threshold 

$2,300/ton 

Cost 

Threshold 

“Remedy” 

Control 

Scenario 

Emission 

Increase 

Examined 

in AQAT 

State 

Alabama 417,340 200,905 213,593 173,566 

Arkansas 99,411 103,431 103,431 106,685 

Connecticut 3,774 3,883 3,883 3,883 

Delaware 2,172 2,088 2,088 2,172 

District of Columbia 0 0 0 0 

Florida 143,601 137,705 136,825 148,069 

Georgia 170,288 94,691 95,834 93,208 40,334 

Illinois 141,606 138,815 128,997 132,647 

Indiana 727,786 262,386 179,539 195,045 5,338 

Iowa 133,083 117,830 81,137 83,827 

Kansas 69,819 55,308 60,870 45,740 452 

Kentucky 488,006 160,582 106,299 116,927 

Louisiana 118,231 135,803 139,204 139,204 

Maine 2,355 2,355 2,355 2,355 

Maryland 42,926 32,187 28,203 30,368 

Massachusetts 13,365 13,364 13,363 13,363 

Michigan 269,434 210,163 148,232 162,632 

Minnesota 70,937 47,720 50,213 49,622 

Mississippi 30,972 32,454 32,455 32,109 

Missouri 390,287 221,689 175,480 186,898 

Nebraska 73,073 69,466 71,475 71,340 3,110 

New Hampshire 6,453 7,100 7,199 6,742 

New Jersey 38,857 7,069 6,611 6,243 

New York** 42,887 26,708 17,931 18,687 5,444 

North Carolina 126,048 109,612 63,577 69,377 

North Dakota 103,633 102,816 103,633 103,624 

Ohio 851,199 313,193 166,691 178,975 5,163 

Oklahoma 137,981 137,981 138,072 138,072 

Pennsylvania 509,650 296,596 114,431 125,545 

Rhode Island 0 0 0 0 

South Carolina 213,281 96,504 107,114 100,787 8,013 

South Dakota 29,711 29,711 29,711 29,711 

Tennessee 284,468 82,159 58,838 64,721 

Texas** 453,332 331,815 334,649 317,165 

Vermont 263 263 263 263 

Virginia 77,256 71,505 47,639 51,144 

West Virginia 498,507 158,445 76,778 84,344 

Wisconsin** 130,538 65,175 53,962 57,893 

*Source: Integrated Planning Model run by EPA, 2011. See Appendix A in the TR Significant 

Contribution and State Emissions Budgets Final Rule TSD (EPA-HQ-OAR-2009-0491-4456) for 

list and description of the IPM $500/ton and $2,300/ton cost threshold and control scenario IPM 

runs. Emissions are shown for all fossil and biomass units. These “final cost curve” runs have 

NOx and ozone season NOx cost thresholds at $500/ton (all years), SO2 Group 2 at $500/ton (all 

years), and SO2 Group 1 (2012-2013) at $500/ton. 

** Emission estimates at the $500/ton cost threshold, $2,300/ton cost threshold, and “remedy” 

control scenario include emissions from the Final February Revisions Rule. 
8 

Table 2. Average Annual PM2.5 DVs (g/m3) in 2014 for SO2 Emission Scenarios Assessed Using AQAT ** 

Monitor 

Identification 

Number* 

State County 

CAMx 

2012 Base 

Case 

(g/m3) 

AQAT 2014 Average Annual PM2.5 Design Values (g/m3). 

$500/ton 

Final 

July TR 

$500/ton 

With 

Feb. 

Revisions 

$500/ton 

With 

Feb. and 

June 

Revisions 

$2,300/ton 

Final July 

TR 

$2,300/ton 

With Feb. 

Revisions 

$2300/ton 

With 

Feb. and 

June 

Revisions 

Control 

Scenario 

Final 

July TR 

C

Sc

Re

420030064 Pennsylvania Allegheny 17.94 15.78 15.78 15.79 15.03 15.03 15.04 14.86 390350038 Ohio Cuyahoga 15.99 14.10 14.10 14.12 13.60 13.60 13.62 13.51 

10730023 Alabama Jefferson 16.15 14.33 14.33 14.36 14.31 14.31 14.34 13.89 

390618001 Ohio Hamilton 16.01 13.54 13.55 13.56 13.01 13.01 13.02 12.96 261630033 Michigan Wayne 15.73 14.35 14.36 14.36 13.87 13.87 13.88 13.77 390350060 Ohio Cuyahoga 15.67 13.75 13.76 13.77 13.25 13.25 13.27 13.16 390610014 Ohio Hamilton 15.76 13.29 13.29 13.31 12.75 12.75 12.76 12.70 390610042 Ohio Hamilton 15.40 12.97 12.97 12.99 12.44 12.44 12.46 12.36 171191007 Illinois Madison 15.46 13.83 13.85 13.85 13.56 13.57 13.58 13.39 

10732003 Alabama Jefferson 15.16 13.55 13.55 13.58 13.52 13.52 13.55 13.13 

390350045 Ohio Cuyahoga 15.14 13.23 13.24 13.25 12.73 12.73 12.75 12.64 180970081 Indiana Marion 14.86 12.68 12.69 12.70 12.26 12.27 12.28 12.24 131210039 Georgia Fulton 15.07 13.35 13.35 13.43 13.20 13.20 13.28 13.07 390617001 Ohio Hamilton 14.74 12.30 12.30 12.31 11.76 11.76 11.77 11.71 390350065 Ohio Cuyahoga 14.67 12.79 12.79 12.80 12.28 12.28 12.30 12.19 180970083 Indiana Marion 14.71 12.53 12.54 12.55 12.11 12.12 12.13 12.09 

*Monitors are in order of decreasing 2012 base case Maximum DV. **Including the Additional Texas, New York, and Wisconsin Emissions from the Final February Revisions Rule and the Additional Georgia, Indiana, Kansas, Nebraska, 

Carolina Emissions from the Final June Revisions Rule. 
9 

Table 3. Maximum Annual PM2.5 DVs (g/m3) in 2014 for SO2 Emission Scenarios Assessed Using AQAT**. 

Monitor 

Identification 

Number* 

State County 

CAMx 

2012 Base 

Case 

(g/m3) 

AQAT 2014 Maximum Annual PM2.5 Design Values (g/m3). 

$500/ton 

Final 

July TR 

$500/ton 

With 

Feb. 

Revisions 

$500/ton 

With Feb. 

and June 

Revisions 

$2,300/ton 

Final July 

TR 

$2,300/to

n With 

Feb. 

Revisions 

$2300/ton 

With 

Feb. and 

June 

Revisions 

Control 

Scenario 

Final 

July TR 

C

Sc

Re

420030064 Pennsylvania Allegheny 18.33 16.17 16.17 16.18 15.42 15.42 15.43 15.25 390350038 Ohio Cuyahoga 16.66 14.77 14.77 14.79 14.27 14.27 14.29 14.18 

10730023 Alabama Jefferson 16.46 14.64 14.64 14.67 14.62 14.62 14.65 14.20 

390618001 Ohio Hamilton 16.33 13.86 13.87 13.88 13.33 13.33 13.34 13.28 261630033 Michigan Wayne 16.32 14.94 14.95 14.95 14.46 14.46 14.47 14.36 390350060 Ohio Cuyahoga 16.18 14.26 14.27 14.28 13.76 13.76 13.78 13.67 390610014 Ohio Hamilton 15.98 13.51 13.51 13.53 12.97 12.97 12.98 12.92 390610042 Ohio Hamilton 15.77 13.34 13.34 13.36 12.81 12.81 12.83 12.73 171191007 Illinois Madison 15.73 14.10 14.12 14.12 13.83 13.84 13.85 13.66 

10732003 Alabama Jefferson 15.64 14.03 14.03 14.06 14.00 14.00 14.03 13.61 

390350045 Ohio Cuyahoga 15.61 13.70 13.71 13.72 13.20 13.20 13.22 13.11 180970081 Indiana Marion 15.16 12.98 12.99 13.00 12.56 12.57 12.58 12.54 131210039 Georgia Fulton 15.10 13.38 13.38 13.46 13.23 13.23 13.31 13.10 390617001 Ohio Hamilton 15.10 12.66 12.66 12.67 12.12 12.12 12.13 12.07 390350065 Ohio Cuyahoga 15.10 13.22 13.22 13.23 12.71 12.71 12.73 12.62 180970083 Indiana Marion 15.06 12.88 12.89 12.90 12.46 12.47 12.48 12.44 

*Monitors are in order of decreasing 2012 base case Maximum DV. **Including the Additional Texas, New York, and Wisconsin Emissions from the Final February Revisions Rule and the Additional Georgia, Indiana, Kansas, Nebraska, 

Carolina Emissions from the Final June Revisions Rule. 
10 

Table 4. Average 24-hour PM2.5 DVs (g/m3) in 2014 for SO2 Emission Scenarios Assessed Using AQAT ***. 

Monitor 

Identification 

Number* 

State County 

CAMx 

2012 Base 

Case 

(g/m3) 

AQAT 2014 Average 24-hour PM2.5 Design Values (g/m3). 

$500/ton 

Final 

July TR 

$500/ton 

With Feb. 

Revisions 

$500/ton 

With Feb. 

and June 

Revisions 

$2,300/ton 

Final July 

TR 

$2,300/ton 

With Feb. 

Revisions 

$2300/ton 

With Feb. 

and June 

Revisions 

Control 

Scenario 

Final July 

TR 

420030064** Pennsylvania Allegheny 56.71 47.57 47.57 47.59 45.54 45.54 45.56 45.4420030093** Pennsylvania Allegheny 39.11 32.19 32.19 32.21 30.25 30.25 30.27 29.8390350038** Ohio Cuyahoga 39.46 34.18 34.18 34.19 33.51 33.51 33.53 33.4261630016** Michigan Wayne 38.99 34.42 34.42 34.42 33.93 33.93 33.94 33.8390350060 Ohio Cuyahoga 37.78 31.50 31.50 31.53 30.60 30.61 30.64 30.5170311016** Illinois Cook 37.58 34.13 34.14 34.16 33.13 33.14 33.16 32.9261630033** Michigan Wayne 39.48 36.31 36.32 36.34 35.00 35.01 35.03 34.7180890022** Indiana Lake 34.94 32.79 32.80 32.82 32.38 32.39 32.40 32.3540090011 West Virginia Brooke 37.57 30.60 30.60 30.62 29.07 29.07 29.10 28.8420710007** Pennsylvania Lancaster 35.98 35.19 35.19 35.19 34.95 34.95 34.95 34.8390350045 Ohio Cuyahoga 34.80 27.69 27.69 27.73 26.30 26.30 26.32 26.2390811001 Ohio Jefferson 34.56 27.64 27.64 27.67 25.79 25.79 25.82 25.5261630019** Michigan Wayne 37.34 35.27 35.28 35.29 34.93 34.93 34.94 34.8390350065 Ohio Cuyahoga 34.91 27.65 27.66 27.69 26.11 26.11 26.15 25.9170313301 Illinois Cook 34.97 31.11 31.11 31.13 30.54 30.54 30.55 30.3420070014 Pennsylvania Beaver 36.21 29.28 29.28 29.30 27.59 27.59 27.60 27.3420033007 Pennsylvania Allegheny 32.40 26.27 26.27 26.29 24.88 24.88 24.90 24.7010730023 Alabama Jefferson 36.96 31.93 31.93 31.99 31.61 31.61 31.67 31.1550790026 Wisconsin Milwaukee 33.62 30.48 30.51 30.52 30.15 30.18 30.19 30.0180970043 Indiana Marion 35.76 28.64 28.64 28.69 27.16 27.16 27.21 27.1261470005 Michigan St Clair 36.23 33.35 33.35 33.37 32.78 32.78 32.80 32.6550790043 Wisconsin Milwaukee 36.21 32.49 32.53 32.54 31.85 31.89 31.90 31.8180890026 Indiana Lake 34.08 30.91 30.91 30.92 30.52 30.52 30.53 30.4180970081 Indiana Marion 35.85 28.44 28.44 28.47 27.35 27.35 27.39 27.3180970066 Indiana Marion 35.73 29.22 29.22 29.26 28.13 28.13 28.17 28.1171191007 Illinois Madison 36.59 29.92 29.94 29.95 29.32 29.34 29.35 29.3550790010 Wisconsin Milwaukee 35.47 31.50 31.54 31.55 30.82 30.86 30.87 30.8390170003 Ohio Butler 34.40 28.07 28.07 28.11 26.49 26.49 26.52 26.4170316005 Illinois Cook 34.12 32.72 32.72 32.73 32.41 32.41 32.42 32.0420031008 Pennsylvania Allegheny 35.04 26.95 26.95 26.98 24.69 24.69 24.72 24.4261610008 Michigan Washtenaw 35.05 29.40 29.40 29.44 28.54 28.55 28.56 28.4170312001 Illinois Cook 33.62 29.84 29.85 29.85 29.58 29.58 29.59 29.5170310052 Illinois Cook 34.94 30.11 30.12 30.12 29.78 29.79 29.79 29.6421330008 Pennsylvania York 33.38 31.60 31.60 31.61 31.03 31.03 31.04 30.9261630015 Michigan Wayne 35.55 32.23 32.23 32.25 31.10 31.10 31.11 31.0010732003 Alabama Jefferson 35.31 31.42 31.42 31.47 31.10 31.10 31.16 30.6390618001 Ohio Hamilton 35.29 27.63 27.63 27.67 26.11 26.11 26.14 25.9171190023 Illinois Madison 35.11 29.23 29.23 29.25 28.49 28.49 28.50 28.4420031301 Pennsylvania Allegheny 33.95 27.16 27.16 27.19 25.21 25.21 25.24 24.9391130032 Ohio Montgomery 33.68 24.40 24.40 24.44 23.15 23.15 23.17 23.0420030116 Pennsylvania Allegheny 35.59 27.97 27.97 28.00 26.34 26.34 26.36 26.1
11 

*Monitors are in order of decreasing 2012 base case Maximum DV. ** Identify receptors that have maximum design values greater than or equal to 35.5 g/m3 at the $500 cost threshold in 2014 (as modeled in AQAT in the TR). ***Including the Additional Texas, New York, and Wisconsin Emissions from the Final February Revisions Rule and the Additional Georgia, Indiana, Kansas, NebraskCarolina Emissions from the Final June Revisions Rule. 
12 

Table 5. Maximum 24-hour PM2.5 DVs (g/m3) in 2014 for SO2 Emission Scenarios Assessed Using AQAT ***

Monitor 

Identification 

Number* 

State County 

CAMx 

2012 Base 

Case 

(g/m3) 

AQAT 2014 Maximum 24-hour PM2.5 Design Values (g/m3). 

$500/ton 

Final 

July TR 

$500/ton 

With Feb. 

Revisions 

$500/ton 

With Feb. 

and June 

Revisions 

$2,300/ton 

Final July 

TR 

$2,300/ton 

With Feb. 

Revisions 

$2300/ton 

With Feb. 

and June 

Revisions 

Control 

Scenario 

Final 

July TR 

420030064** Pennsylvania Allegheny 59.93 50.72 50.72 50.74 48.63 48.63 48.65 48.52 420030093** Pennsylvania Allegheny 44.40 36.85 36.85 36.88 34.80 34.80 34.83 34.28 390350038** Ohio Cuyahoga 41.84 35.93 35.93 35.94 35.41 35.41 35.42 35.39 261630016** Michigan Wayne 41.28 36.20 36.20 36.20 35.65 35.66 35.66 35.61 390350060 Ohio Cuyahoga 40.85 33.69 33.70 33.72 33.04 33.04 33.07 32.94 170311016** Illinois Cook 40.44 37.40 37.41 37.43 36.54 36.55 36.56 36.40 261630033** Michigan Wayne 39.81 36.59 36.59 36.62 35.23 35.23 35.26 34.95 180890022** Indiana Lake 39.58 37.00 37.01 37.03 36.51 36.51 36.54 36.30 540090011 West Virginia Brooke 38.39 32.23 32.23 32.27 30.02 30.02 30.06 29.63 420710007** Pennsylvania Lancaster 38.37 37.43 37.43 37.43 37.18 37.18 37.18 37.08 390350045 Ohio Cuyahoga 38.13 29.48 29.49 29.53 27.60 27.60 27.63 27.43 390811001 Ohio Jefferson 37.88 30.27 30.27 30.31 28.03 28.03 28.06 27.76 261630019** Michigan Wayne 37.83 36.20 36.21 36.22 35.83 35.83 35.84 35.74 390350065 Ohio Cuyahoga 37.67 28.79 28.80 28.84 27.00 27.00 27.04 26.81 170313301 Illinois Cook 37.67 33.36 33.36 33.37 32.84 32.85 32.86 32.70 420070014 Pennsylvania Beaver 37.42 30.46 30.46 30.49 28.70 28.70 28.72 28.49 420033007 Pennsylvania Allegheny 37.40 30.73 30.73 30.75 28.81 28.81 28.83 28.63 010730023 Alabama Jefferson 37.33 32.50 32.50 32.58 32.12 32.12 32.19 31.57 550790026 Wisconsin Milwaukee 37.24 33.54 33.57 33.58 33.21 33.24 33.25 33.10 180970043 Indiana Marion 37.20 29.00 29.00 29.05 27.82 27.82 27.85 27.76 261470005 Michigan St Clair 37.14 34.16 34.16 34.19 33.38 33.38 33.39 33.29 550790043 Wisconsin Milwaukee 37.10 34.22 34.26 34.27 33.92 33.96 33.96 33.92 180890026 Indiana Lake 37.06 33.67 33.67 33.68 33.37 33.37 33.38 33.39 180970081 Indiana Marion 36.96 28.83 28.83 28.87 27.59 27.59 27.63 27.54 180970066 Indiana Marion 36.92 30.40 30.40 30.45 29.13 29.13 29.18 29.11 171191007 Illinois Madison 36.83 31.19 31.20 31.21 30.66 30.68 30.70 30.64 550790010 Wisconsin Milwaukee 36.71 33.47 33.50 33.51 33.13 33.16 33.17 33.13 390170003 Ohio Butler 36.59 28.71 28.71 28.73 27.33 27.33 27.35 27.29 170316005 Illinois Cook 36.42 35.09 35.10 35.10 34.82 34.82 34.83 34.45 420031008 Pennsylvania Allegheny 36.35 28.15 28.15 28.19 25.62 25.62 25.66 25.38 261610008 Michigan Washtenaw 36.32 30.20 30.20 30.23 29.33 29.33 29.34 29.26 170312001 Illinois Cook 36.12 32.71 32.71 32.72 32.33 32.34 32.35 32.21 170310052 Illinois Cook 36.07 30.62 30.62 30.63 30.31 30.32 30.33 30.20 421330008 Pennsylvania York 36.06 34.55 34.56 34.56 33.91 33.92 33.92 33.79 261630015 Michigan Wayne 36.00 33.04 33.04 33.06 31.99 31.99 32.00 31.91 010732003 Alabama Jefferson 35.94 32.23 32.23 32.28 31.91 31.91 31.97 31.46 390618001 Ohio Hamilton 35.85 28.23 28.23 28.27 26.73 26.73 26.75 26.64 171190023 Illinois Madison 35.81 30.23 30.23 30.25 29.50 29.50 29.51 29.41 420031301 Pennsylvania Allegheny 35.65 28.05 28.05 28.08 26.15 26.15 26.17 25.85 391130032 Ohio Montgomery 35.61 25.99 25.99 26.02 24.62 24.62 24.64 24.54 420030116 Pennsylvania Allegheny 35.59 27.97 27.97 28.00 26.34 26.34 26.36 26.13 
13 

*Monitors are in order of decreasing 2012 base case Maximum DV. ** Identify receptors that have maximum design values greater than or equal to 35.5 g/m3 at the $500 cost threshold in 2014 (as modeled in AQAT in the TR). ***Including the Additional Texas, New York, and Wisconsin Emissions from the Final February Revisions Rule and the Additional Georgia, Indiana, Kansas, NebraskCarolina Emissions from the Final June Revisions Rule. 
14 

Table 6. The Percentage of the Final June Revisions Rule Annual NOx Emission Increase (tons) 

as a Function of Total Annual NOx Emissions from all Source Sectors (tons) (Including the Final 

February Revisions Rule).4

State 

2014 “Remedy” 

Control Scenario Total 

Annual NOx Emissions 

Final June 

Revisions 

Rule Annual 

NOx Budget 

Increase 

Final June Revisions 

Rule Annual NOx

Budget Increase as a 

Percentage of 2014 

“Remedy” Total 

Emissions 

Alabama 315,155 

Arkansas 194,964 

Connecticut 80,793 

Delaware 31,744 

District of Columbia 9,773 

Florida 616,154 

Georgia 395,764 13,198 3.3% 

Illinois 540,361 

Indiana 424,250 

Iowa 217,221 

Kansas 240,384 5,794 2.4% 

Kentucky 286,806 

Louisiana 466,098 

Maine 61,657 

Maryland 181,533 

Massachusetts 175,316 

Michigan 447,772 

Minnesota 338,438 

Mississippi 216,224 

Missouri 352,631 26 0.0% 

Nebraska 173,170 

New Hampshire 47,482 

New Jersey 210,520 

New York 461,412 694 0.2% 

North Carolina 317,230 

North Dakota 127,127 

Ohio 508,054 2,765 0.5% 

Oklahoma 305,859 

Pennsylvania 514,563 

Rhode Island 18,808 

South Carolina 202,118 

South Dakota 65,500 

Tennessee 293,339 

Texas 1,369,987 2,731 0.2% 

Vermont 22,824 

Virginia 333,985 

West Virginia 155,245 

Wisconsin 257,462 

 

4

 For additional details about emission budgets and unit-level allocations see the Final June Revisions Rule State 

Budgets and New Unit Set-Asides TSD and the Final June Revisions Rule Unit-Level Allocations under the FIPs in 

the docket to this rulemaking. 
15 

Table 7. The Percentage of the Final June Revisions Rule Ozone-Season NOx Emission Increase 

(tons) as a Function of Total Ozone-Season NOx Emissions from all Source Sectors (tons) 

(Including the Final February Revisions Rule).5

State 

2014 “Remedy” Control 

Scenario Total OzoneSeason NOx Emissions 

Final June Revisions 

Rule Ozone-Season 

NOx Budget Increase 

Final June 

Revisions Rule 

Ozone-Season 

NOx Budget 

Increase as a 

Percentage of 2014 

“Remedy” Total 

Emissions 

Alabama 126,382 

Arkansas 87,920 73 0.1% 

Connecticut 31,133 

Delaware 13,693 

District of 

Columbia 3,805 

Florida 261,497 

Georgia 161,301 5,762 3.6% 

Illinois 221,011 

Indiana 176,143 

Iowa 97,478 

Kansas 97,635 

Kentucky 117,179 

Louisiana 199,940 89 0.0% 

Maine 24,427 

Maryland 74,401 

Massachusetts 68,324 

Michigan 180,549 

Minnesota 144,960 

Mississippi 91,480 115 0.1% 

Missouri 149,213 26 0.0% 

Nebraska 74,095 

New Hampshire 18,785 

New Jersey 84,110 

New York 184,723 127 0.1% 

North Carolina 130,132 

North Dakota 59,336 

Ohio 208,281 1,221 0.6% 

Oklahoma 125,457 859 0.7% 

Pennsylvania 208,800 

Rhode Island 7,251 

South Carolina 83,215 

South Dakota 31,739 

Tennessee 119,966 

Texas 578,301 1,142 0.2% 

Vermont 8,796 

Virginia 136,976 

West Virginia 63,770 

Wisconsin 104,890 

 

5

 For additional details about emission budgets and unit-level allocations see the Final Revisions Rule State Budgets 

and New Unit Set-Asides TSD and the Final Revisions Rule Unit-Level Allocations under the FIPs in the docket to 

this rulemaking. 
16 

Appendix A. 

Documents, worksheets, and workbooks used in this analysis (with documents from the final TR 

that were used listed with their relevant document identification number). In addition, a list of 

abbreviations along with brief descriptions of the various AQAT simulations used in this 

assessment is included at the end of this appendix. 

Annual and Quarterly Emissions for all AQAT Simulations. EPA-HQ-OAR-2009-0491-4530 

AQAT_emissions_final_June_revrule.xlsx 

contains the emissions and fraction of emissions for each scenario in the final february revisions 

rule and the final june revisions rule relative to the total emissions in the 2012 base case from the 

final TR. 

These files contain the 24-hour PM2.5 2012 base case and 2014 AQAT Calibration Scenario 

contributions. 

QTR1_base_and_AQAT_calibration_scenario_contributions.xlsx EPA-HQ-OAR-2009-0491-

4531 

QTR2_base_and_AQAT_calibration_scenario_contributions.xlsx EPA-HQ-OAR-2009-0491-

4532 

QTR3_base_and_AQAT_calibration_scenario_contributions.xlsx EPA-HQ-OAR-2009-0491-

4533 

QTR4_base_and_AQAT_calibration_scenario_contributions.xlsx EPA-HQ-OAR-2009-0491-

4534 

The annual PM2.5 and 24-hour PM2.5 calibration factors can be found in the respective files in 

the TR docket. The annual PM2.5 calibration factors are also included in the AnnualPM2.5 

AQAT workbook. 

Annual PM Calibration Factors.xlsx EPA-HQ-OAR-2009-0491-4535 

Daily PM Calibration Factors.xlsx EPA-HQ-OAR-2009-0491-4464 

These files contain the quarterly contributions and calibrated Relative Response Factors (RRFs) 

for the 24-hour PM2.5 simulations (CT refers to cost threshold). The files from the final TR are 

listed here (along with their docket identification numbers), as well as the additional files that 

have been created and used for this assessment. The file name identifies whether the file is a 

cost threshold (CT) or a “remedy” control scenario (rem). 

dailyPM_adjusted sulfate contributions and RRF_2014_500CT.xlsx EPA-HQ-OAR-2009-0491-

4492 

dailyPM_adjusted sulfate contributions and RRF_2014_2300CT.xlsx EPA-HQ-OAR-2009-

0491-4488 

dailyPM_adjusted sulfate contributions and RRF_2014_2300_remedy.xlsx EPA-HQ-OAR-2009-

0491-4487 

dailyPM_adjusted sulfate contributions and RRF_2014_2300rem_febrev. xlsx (recreating the 

final February revisions rule rule) 

dailyPM_adjusted sulfate contributions and RRF_2014_2300rem_Junerev. xlsx 
17 

dailyPM_adjusted sulfate contributions and RRF_2014_2300rem. xlsx (recreating the final TR 

file) 

dailyPM_adjusted sulfate contributions and RRF_2014_2300CT_febrev. xlsx (recreating the 

final February revisions rule rule) 

dailyPM_adjusted sulfate contributions and RRF_2014_2300CT_Junerev. xlsx 

dailyPM_adjusted sulfate contributions and RRF_2014_2300CT. xlsx (recreating the final TR 

file) 

dailyPM_adjusted sulfate contributions and RRF_2014_500CT_febrev. xlsx (recreating the final 

February revisions rule rule) 

dailyPM_adjusted sulfate contributions and RRF_2014_500CT_Junerev. xlsx 

dailyPM_adjusted sulfate contributions and RRF_2014_500CT. xlsx (recreating the final TR 

file) 

dailyPM_allyears_high_quarters_Junerev.xlsx. This file contains a summary of the estimated 

98th percentile values and resulting average and maximum design values for all 24-hour PM2.5 

AQAT cost threshold level and remedy simulations. It also contains a summary worksheet, 

where the design values are sorted in order of decreasing maximum 2012 base case design value 

(the same key as used in the tables in this TSD). 

The following files apply the RRFs to each of the 32 days per year for each of the 5 years of 

available receptor estimates. The result is the estimated 24-hour PM2.5 concentration for that 

day. The 98th percentile day is also identified in these files. They are in 2014. 

dailyPM_all_years_all_quarters_base_500CT.xlsx EPA-HQ-OAR-2009-0491-4540 

dailyPM_all_years_all_quarters_base_2300CT.xlsx EPA-HQ-OAR-2009-0491-4505 

dailyPM_all_years_all_quarters_2300_remedy.xlsx EPA-HQ-OAR-2009-0491-4569 

The additional files in this assessment are: 

dailyPM_all_years_all_quarters_2300_rem_febrev. xlsx (recreating the final February revisions 

rule rule) 

dailyPM_all_years_all_quarters_2300_rem_junerev. xlsx 

dailyPM_all_years_all_quarters_2300_rem. xlsx (recreating the final TR file) 

dailyPM_all_years_all_quarters_2300_CT_febrev. xlsx (recreating the final February revisions 

rule rule) 

dailyPM_all_years_all_quarters_2300_CT_junerev.xlsx 

dailyPM_all_years_all_quarters_2300_CT. xlsx (recreating the final TR file) 

dailyPM_all_years_all_quarters_500_CT_febrev. xlsx (recreating the final February revisions 

rule rule) 

dailyPM_all_years_all_quarters_500_CT_junerev.xlsx 

dailyPM_all_years_all_quarters_500_CT. xlsx (recreating the final TR file) 

The file annualPM25 AQAT.xlsx file EPA-HQ-OAR-2009-0491-4458 

contains the base contributions, AQAT calibration scenario contributions, calibrated 

contributions, and estimated design values for all annual PM2.5 AQAT simulations for the final 

TR. 
18 

A new file, containing the annual AQAT estimates for this assessment (including the final 

February revisions rule and final June revisions rule) is called “annualPM25 

AQAT_June_rev.xlsx” 

A list of the abbreviations, used throughout the excel workbooks, which identify specific AQAT 

simulations used in this assessment: 

2300 rem Feb rev. This is a simulation of the 2014 "remedy" control scenario with the final 

Febrauary emission revisions made for Texas, New York, and Wisconsin. 

2300 rem June rev. This is a simulation of the 2014 "remedy" control scenario with the emission 

revisions in the final June revisions rule made for Georgia, Indiana, Kansas, Nebraska, New 

York, Ohio, and South Carolina as well as the emission changes for Texas, New York, and 

Wisconsin included in the final February revisions rule. 

2300 rem. This is a simulation of the 2014 "remedy" control scenario with emissions from the 

final Transport Rule. 

2300 CT Feb rev. This is a simulation of the 2014 $2,300/ton cost threshold scenario with the 

final Febrauary emission revisions made for Texas, New York, and Wisconsin. 

2300 CT June rev. This is a simulation of the 2014 $2,300/ton cost threshold scenario with the 

emission revisions in the final June revisions rule made for Georgia, Indiana, Kansas, Nebraska, 

New York, Ohio, and South Carolina as well as the emission changes for Texas, New York, and 

Wisconsin included in the final February revisions rule. 

2300 CT. This is a simulation of the 2014 $2,300/ton cost threshold scenario with emissions 

from the final Transport Rule. 

500 CT Feb rev. This is a simulation of the 2014 $500/ton cost threshold scenario with the final 

emission Febrauary revisions made for Texas, New York, and Wisconsin. 

500 CT June rev. This is a simulation of the 2014 $500/ton cost threshold scenario with the 

emission revisions in the final June revisions rule made for Georgia, Indiana, Kansas, Nebraska, 

New York, Ohio, and South Carolina as well as the emission changes for Texas, New York, and 

Wisconsin included in the final February revisions rule. 

500 CT. This is a simulation of the 2014 $500/ton cost threshold scenario with emissions from 

the final Transport Rule.