Cholla Unit 1

Table 2. Control Options (per EPA Region 9) and Corresponding Emission Reductions Relative to Base Used in Visibility Modeling 

Controls Technology Used

-Emissions 

(TPY, max day) $/year

Base Case Base LNB+SOFA 0 $0

SNCR u.1 + BART Ctrl2-1 SNCR+LNB+SOFA 309 $999,045

SCR u.1 + BART Ctrl2-2 SCR+LNB+SOFA 797 $4,237,867

Rev Base+FFSpec Rev Base-2 LNB+SOFA; FFSpec 0 $0

SNCR u.1 Ctrl2-3 SNCR+LNB+SOFA 309 $999,045

SCR u.1 Ctrl2-4 SCR+LNB+SOFA 797 $4,237,867

Table 3(b). NOx Control Technologies for Cholla Unit 1 (from Andover Technology Partners Report Table 5-10) version 9/19/12

SNCR SCR

Capacity Factor 86% 86%

Control Efficiency 30% 77%*

Uncontrolled Rate

NOx Rate (lb/hr) 274 274

NOx Rate (lb/MMBtu) 0.22 0.22

NOx (TPY) 1032 1032

Controlled Rate

NOx Rate (lb/hr) 192 62

NOx Rate (lb/MMBtu) 0.15 0.05

NOx (TPY) 723 235

Tons/Year Removed 310 798

Total Cost, $/year $999,045 $4,237,867

$/Ton $3,226 $5,313

$/Ton (incremental) $3,226 $6,638

Cholla Unit 1

visibility method 6, annual average background

Using dv from max impact area (13 areas)

Controls

Control 

Option ton/yr reduction

cost, $/yr 

(millions)

$/ton 

reduction

visibility 

impact, dv 

visibility 

benefit, dv $/dv (millions)

# areas w/ 

improvement 

≥ 0.5 dv

Base Case Base 0 $0.0 2.85

SNCR u.1 + BART Ctrl2-1 309 $1.0 $3,233 2.79 0.06 $17 0

SCR u.1 + BART Ctrl2-2 797 $4.2 $5,317 2.70 0.14 $29 0

Rev Base+FFSpec Rev Base-2 0 $0.0 3.85

SNCR u.1 Ctrl2-3 309 $1.0 $3,233 3.73 0.12 $9 0

SCR u.1 Ctrl2-4 797 $4.2 $5,317 3.63 0.22 $19 0

(same tons & costs as above) Using dv sum over all areas (13 areas)

Controls

Control 

Option ton/yr reduction

cost, $/yr 

(millions)

$/ton 

reduction

visibility 

impact, dv 

visibility 

benefit, dv $/dv (millions)

Base Case Base 0 $0.0 9.79

SNCR u.1 + BART Ctrl2-1 309 $1.0 $3,233 9.55 0.23 $4.3

SCR u.1 + BART Ctrl2-2 797 $4.2 $5,317 9.24 0.55 $7.7

Rev Base+FFSpec Rev Base-2 0 $0.0 15.41

SNCR u.1 Ctrl2-3 309 $1.0 $3,233 15.07 0.35 $2.9

Cholla 1 – NOx

Unit 1

* SCR is actually capable of 90% removal. The model that we used set a lower limit of 0.05 

lb/MMBtu, but lower NOx levels should be achievable

Control 

Option
SCR u.1 Ctrl2-4 797 $4.2 $5,317 14.67 0.74 $5.7
Cholla Unit 1

visibility method 6, annual average background (this page edited from vis6.annav sheet)

Table 1(a). Visibility Impairment (98th Percentile) for 2001-2003 Base Case Emissions and Control Options

 Change relative to base (dv)

Base Ctrl2-1 Ctrl2-2 Rev Base-2 Ctrl2-3 Ctrl2-4 Base Rev Base-2 Ctrl2-1

CIA Class I Area Base Case

SNCR u.1 + 

BART

SCR u.1 + 

BART

Rev 

Base+FFSpec SNCR u.1 SCR u.1 Base Case

Rev 

Base+FFSpec

SNCR u.1 + 

BART

care Capitol Reef 0.56 0.54 0.51 1.15 1.11 1.09 0.00 0.00 0.02

gali Galiuro 0.28 0.28 0.28 0.42 0.42 0.41 0.00 0.00 0.00

gila Gila 0.42 0.42 0.40 0.56 0.55 0.55 0.00 0.00 0.00

grca Grand Canyon 0.90 0.87 0.79 1.71 1.66 1.61 0.00 0.00 0.04

maza Mazatzal 0.73 0.71 0.70 1.10 1.09 1.06 0.00 0.00 0.03

meve Mesa Verde 0.48 0.46 0.44 0.93 0.90 0.89 0.00 0.00 0.02

moba Mount Baldy 0.57 0.56 0.56 0.92 0.91 0.91 0.00 0.00 0.01

pefo Petrified Forest 2.85 2.79 2.70 3.85 3.73 3.63 0.00 0.00 0.06

pimo Pine Mountain 0.51 0.50 0.49 0.78 0.76 0.73 0.00 0.00 0.01

sagu Saguaro 0.23 0.23 0.23 0.29 0.29 0.29 0.00 0.00 0.00

sian Sierra Ancha 0.80 0.79 0.77 1.27 1.25 1.21 0.00 0.00 0.01

supe Superstition 0.76 0.75 0.73 1.21 1.21 1.18 0.00 0.00 0.02

syca Sycamore Canyon 0.69 0.68 0.66 1.23 1.19 1.13 0.00 0.00 0.01

Total 9.79 9.55 9.24 15.41 15.07 14.67 0.23

Max 2.85 2.79 2.70 3.85 3.73 3.63 0.06

# CIAs w. -dv >0.5 9 8 8 11 11 11 0

Table 5(a). Control Opon Cost Effecveness (million $/dv)†

Ctrl2-1 Ctrl2-2 Ctrl2-3 Ctrl2-4

CIA

SNCR u.1 + 

BART

SCR u.1 + 

BART SNCR u.1 SCR u.1

care Capitol Reef 40 77 22 63

gali Galiuro 250 848 N/A 424

gila Gila 333 249 125 326

grca Grand Canyon 29 37 19 39

maza Mazatzal 38 121 77 109

meve Mesa Verde 45 109 37 115

moba Mount Baldy 143 424 333 471

pefo Petrified Forest 17 29 9 19

pimo Pine Mountain 77 193 50 90

sagu Saguaro N/A 1059 N/A 706

sian Sierra Ancha 83 146 45 74

supe Superstition 62 121 999 128

syca Sycamore Canyon 83 118 27 44

$/dv_sum 4.3 7.7 2.9 5.7 ($/yr) / (sum of dv benefits over all areas)

$/dv_max 17.2 29.4 8.6 19.4 ($/yr) / (max dv benefit of any area)

†$/dv = $ per year from Table 3 divided by delta dv from Table 1(a) for each control option, in millions

Class I Area

98th Percentile -dv

Number of Class I Areas with visibility im
Ctrl2-2 Ctrl2-3 Ctrl2-4

SCR u.1 + 

BART SNCR u.1 SCR u.1

0.05 0.04 0.07

0.00 0.00 0.01

0.02 0.01 0.01

0.12 0.05 0.11

0.04 0.01 0.04

0.04 0.03 0.04

0.01 0.00 0.01

0.14 0.12 0.22

0.02 0.02 0.05

0.00 0.00 0.01

0.03 0.02 0.06

0.04 0.00 0.03

0.04 0.04 0.10

0.55 0.35 0.74

0.14 0.12 0.22

0 0 0

Number of Class I Areas with visibility improvement ≥ 0.5 dv
Base Ctrl2-1 Ctrl2-2 Rev Base-2 Ctrl2-3 Ctrl2-4

care 0.533 0.512 0.478 1.092 1.074 1.045

gali 0.347 0.334 0.327 0.440 0.432 0.424

gila 0.317 0.312 0.307 0.515 0.505 0.501

grca 1.489 1.426 1.338 2.930 2.891 2.829

maza 0.733 0.705 0.662 1.102 1.087 1.063

meve 0.336 0.323 0.307 0.697 0.685 0.667

moba 0.568 0.530 0.488 1.087 1.060 0.998

pefo 2.970 2.869 2.703 3.936 3.849 3.709

pimo 0.443 0.438 0.425 0.745 0.740 0.732

sagu 0.290 0.284 0.283 0.354 0.351 0.346

sian 0.796 0.772 0.751 1.333 1.314 1.284

supe 0.857 0.850 0.804 1.291 1.266 1.229

syca 0.649 0.648 0.646 1.226 1.189 1.129

Total 10.328 10.003 9.519 16.748 16.443 15.956

98th Percentile -dv

Table 1(a). Visibility Impairment (98th Percentile) at Each Class I Area (CIA) Within APS Cholla-1's Zone of Influence (300 km

CIA

2001
Ctrl2-1 Ctrl2-2 Ctrl2-3 Ctrl2-4 Base Ctrl2-1 Ctrl2-2

0.021 0.055 0.018 0.047 0.324 0.317 0.305

0.013 0.020 0.008 0.016 0.278 0.278 0.277

0.005 0.010 0.010 0.014 0.427 0.426 0.418

0.063 0.151 0.039 0.101 0.874 0.831 0.766

0.028 0.071 0.015 0.039 0.686 0.680 0.638

0.013 0.029 0.012 0.030 0.492 0.472 0.454

0.038 0.080 0.027 0.089 0.573 0.572 0.570

0.101 0.267 0.087 0.227 2.725 2.666 2.586

0.005 0.018 0.005 0.013 0.554 0.544 0.524

0.006 0.007 0.003 0.008 0.192 0.188 0.181

0.024 0.045 0.019 0.049 0.770 0.744 0.719

0.007 0.053 0.025 0.062 0.762 0.746 0.727

0.001 0.003 0.037 0.097 0.805 0.780 0.740

0.325 0.809 0.305 0.792 9.462 9.244 8.905

 Change relative to base (-dv) 98th Percentile 

a-1's Zone of Influence (300 km) for 2001-2003 Base Case Emissions and Control Options (listed in Table 2)
Rev Base-2 Ctrl2-3 Ctrl2-4 Ctrl2-1 Ctrl2-2 Ctrl2-3 Ctrl2-4

0.710 0.698 0.679 0.007 0.019 0.012 0.031

0.355 0.349 0.342 0.000 0.001 0.006 0.013

0.576 0.566 0.549 0.001 0.009 0.010 0.027

1.624 1.591 1.542 0.043 0.108 0.033 0.082

1.067 1.044 1.027 0.006 0.048 0.023 0.040

0.950 0.941 0.927 0.020 0.038 0.009 0.023

0.964 0.944 0.913 0.001 0.003 0.020 0.051

3.471 3.456 3.419 0.059 0.139 0.015 0.052

0.923 0.905 0.876 0.010 0.030 0.018 0.047

0.246 0.237 0.232 0.004 0.011 0.009 0.014

1.268 1.246 1.211 0.026 0.051 0.022 0.057

1.245 1.225 1.193 0.016 0.035 0.020 0.052

1.389 1.376 1.358 0.025 0.065 0.013 0.031

14.788 14.578 14.268 0.218 0.557 0.210 0.520

2002

 Percentile -dv Change relative to base (-dv)
Base Ctrl2-1 Ctrl2-2 Rev Base-2 Ctrl2-3 Ctrl2-4 Ctrl2-1

0.639 0.638 0.638 1.441 1.406 1.352 0.001

0.219 0.215 0.207 0.370 0.358 0.339 0.004

0.421 0.406 0.384 0.602 0.600 0.596 0.015

0.677 0.675 0.673 1.169 1.151 1.105 0.002

0.767 0.752 0.716 1.098 1.089 1.074 0.015

0.576 0.550 0.511 1.138 1.114 1.076 0.026

0.562 0.562 0.561 0.707 0.692 0.669 0.000

2.861 2.826 2.816 3.929 3.803 3.709 0.035

0.495 0.490 0.444 0.622 0.620 0.619 0.005

0.168 0.166 0.162 0.256 0.254 0.251 0.002

0.797 0.791 0.790 1.140 1.138 1.135 0.006

0.633 0.629 0.628 0.914 0.903 0.871 0.004

0.553 0.546 0.539 0.864 0.847 0.822 0.007

9.368 9.246 9.069 14.250 13.975 13.618 0.122

2003

98th Percentile -dv Change relati
Ctrl2-2 Ctrl2-3 Ctrl2-4 Base Ctrl2-1 Ctrl2-2 Rev Base-2

0.001 0.035 0.089 0.564 0.539 0.509 1.153

0.012 0.012 0.031 0.282 0.278 0.277 0.418

0.037 0.002 0.006 0.419 0.416 0.402 0.562

0.004 0.018 0.064 0.904 0.869 0.788 1.714

0.051 0.009 0.024 0.731 0.705 0.696 1.102

0.065 0.024 0.062 0.479 0.457 0.440 0.930

0.001 0.015 0.038 0.571 0.564 0.561 0.915

0.045 0.126 0.220 2.847 2.789 2.703 3.846

0.051 0.002 0.003 0.508 0.495 0.486 0.779

0.006 0.002 0.005 0.231 0.231 0.227 0.291

0.007 0.002 0.005 0.797 0.785 0.768 1.268

0.005 0.011 0.043 0.762 0.746 0.727 1.209

0.014 0.017 0.042 0.692 0.680 0.656 1.226

0.299 0.275 0.632 9.787 9.554 9.240 15.413

98th Change relative to base (-dv) Percentile -dv
 Change relative to base (dv)

Ctrl2-3 Ctrl2-4 Ctrl2-1 Ctrl2-2 Ctrl2-3 Ctrl2-4

1.108 1.086 0.025 0.055 0.045 0.067

0.418 0.408 0.004 0.005 0.000 0.010

0.554 0.549 0.003 0.017 0.008 0.013

1.660 1.605 0.035 0.116 0.054 0.109

1.089 1.063 0.026 0.035 0.013 0.039

0.903 0.893 0.022 0.039 0.027 0.037

0.912 0.906 0.007 0.010 0.003 0.009

3.730 3.628 0.058 0.144 0.116 0.218

0.759 0.732 0.013 0.022 0.020 0.047

0.291 0.285 0.000 0.004 0.000 0.006

1.246 1.211 0.012 0.029 0.022 0.057

1.208 1.176 0.016 0.035 0.001 0.033

1.189 1.129 0.012 0.036 0.037 0.097

15.067 14.671 0.233 0.547 0.346 0.742

All Years
Table 2. Control Options (per EPA Region 9) and Corresponding Emission Reductions Relative to Base Used in Visibility Mo

Base LNB+SOFA 0 $0

Ctrl2-1 SNCR+LNB+SOFA 309 $999,045

Ctrl2-2 SCR+LNB+SOFA 797 $4,237,867

Rev Base-2 LNB+SOFA; FFSpec 0 $0

Ctrl2-3 SNCR+LNB+SOFA 309 $999,045

Ctrl2-4 SCR+LNB+SOFA 797 $4,237,867

Table 3. NOx Control Technologies for Cholla Unit 1 (from Andover Technology Partners Report Table 5-10) version 9/19/1

SNCR SCR

Capacity Factor 86% 86%

Control Efficiency 30% 77%*

Uncontrolled Rate

NOx Rate (lb/hr) 274 274

NOx Rate (lb/MMBtu) 0.22 0.22

NOx (TPY) 1032 1032

Controlled Rate

NOx Rate (lb/hr) 192 62

NOx Rate (lb/MMBtu) 0.15 0.05

NOx (TPY) 723 235

Tons/Year Removed 310 798

Total Cost, $/year $999,045 $4,237,867

$/Ton $3,226 $5,313

$/Ton (incremental) $3,226 $6,638

* SCR is actually capable of 90% removal. The model that we used set a lower limit of 0.05 

lb/MMBtu, but lower NOx levels should be achievable

Control

NOx -Emis 

(TPY) $/year

Control Option

Cholla 1 – NOx

Unit 1
ative to Base Used in Visibility Modeling 

Report Table 5-10) version 9/19/12
Cholla Unit 1

Table 2. Control Options (per EPA Region 9) and Corresponding Emission Reductions Relative to Base Used in Visibility Modeling 

Controls

Technology 

Used

-Emissions 

(TPY, max day) $/year

Base Case Base LNB+SOFA 0 $0

SNCR u.1 + BART Ctrl2-1 SNCR+LNB+SOFA 309 $999,045

SCR u.1 + BART Ctrl2-2 SCR+LNB+SOFA 797 $4,237,867

Rev Base+FFSpec Rev Base-2 LNB+SOFA; FFSpec 0 $0

SNCR u.1 Ctrl2-3 SNCR+LNB+SOFA 309 $999,045

SCR u.1 Ctrl2-4 SCR+LNB+SOFA 797 $4,237,867

Table 3(b). NOx Control Technologies for Cholla Unit 1 (from Andover Technology Partners Report Table 5-10) version 9/19/12

SNCR SCR

Capacity Factor 86% 86%

Control Efficiency 30% 77%*

Uncontrolled Rate

NOx Rate (lb/hr) 274 274

NOx Rate (lb/MMBtu) 0.22 0.22

NOx (TPY) 1032 1032

Controlled Rate

NOx Rate (lb/hr) 192 62

NOx Rate (lb/MMBtu) 0.15 0.05

NOx (TPY) 723 235

Tons/Year Removed 310 798

Total Cost, $/year $999,045 $4,237,867

$/Ton $3,226 $5,313

$/Ton (incremental) $3,226 $6,638

Cholla Unit 1

visibility method 8, 20% best background

Using dv from area with highest impact (13 areas)

Controls

Control 

Option

ton/yr 

reduction

cost, $/yr 

(millions)

$/ton 

reduction

visibility 

impact, dv 

visibility 

benefit, dv 

$/dv 

(millions)

# areas w/ 

improvemen

t ≥ 0.5 dv

Base Case Base 0 $0.0 3.4

SNCR u.1 + BART Ctrl2-1 309 $1.0 $3,233 3.3 0.10 $10 0

SCR u.1 + BART Ctrl2-2 797 $4.2 $5,317 3.2 0.20 $22 0

Rev Base+FFSpec Rev Base-2 0 $0.0 4.7

SNCR u.1 Ctrl2-3 309 $1.0 $3,233 4.6 0.13 $8 0

SCR u.1 Ctrl2-4 797 $4.2 $5,317 4.4 0.33 $13 0

(same tons & costs as above) Using dv sum over all areas (13 areas)

Controls

Control 

Option

ton/yr 

reduction

cost, $/yr 

(millions)

$/ton 

reduction

visibility 

impact, dv 

visibility 

benefit, dv 

$/dv 

(millions)

Base Case Base 0 $0.0 11.4

SNCR u.1 + BART Ctrl2-1 309 $1.0 $3,233 11.1 0.33 $3.0

SCR u.1 + BART Ctrl2-2 797 $4.2 $5,317 10.6 0.75 $5.7

* SCR is actually capable of 90% removal. The model that we used set a lower limit 

of 0.05 lb/MMBtu, but lower NOx levels should be achievable

Cholla 1 – NOx

Control 

Option

Unit 1
Rev Base+FFSpec Rev Base-2

0 $0.0 $0 18.8

SNCR u.1 Ctrl2-3 309 $1.0 $3,233 18.4 0.36 $2.8

SCR u.1 Ctrl2-4 797 $4.2 $5,317 17.9 0.89 $4.8
Cholla Unit 1

visibility method 8, 20% best background (this page edited from vis8.20best sheet)

Table 1(b). Visibility Impairment (98th Percentile) for 2001-2003 Base Case Emissions and Control Options

Base Ctrl2-1 Ctrl2-2 Rev Base-2 Ctrl2-3 Ctrl2-4 Base Rev Base-2 Ctrl2-1

CIA Base Case

SNCR u.1 + 

BART

SCR u.1 + 

BART

Rev 

Base+FFSpec SNCR u.1 SCR u.1 Base Case

Rev 

Base+FFSpec

SNCR u.1 + 

BART

care Capitol Reef 0.71 0.67 0.62 1.46 1.43 1.38 0.00 0.00 0.04

gali Galiuro 0.30 0.29 0.29 0.47 0.46 0.45 0.00 0.00 0.01

gila Gila 0.48 0.48 0.48 0.72 0.71 0.69 0.00 0.00 0.01

grca Grand Canyon 1.14 1.09 1.02 2.22 2.18 2.12 0.00 0.00 0.05

mazaMazatzal 0.79 0.78 0.75 1.25 1.23 1.22 0.00 0.00 0.02

meveMesa Verde 0.65 0.62 0.60 1.33 1.30 1.26 0.00 0.00 0.03

mobaMount Baldy 0.71 0.70 0.69 1.23 1.23 1.21 0.00 0.00 0.01

pefo Petrified Forest 3.38 3.28 3.18 4.73 4.60 4.40 0.00 0.00 0.10

pimo Pine Mountain 0.55 0.55 0.52 0.88 0.86 0.84 0.00 0.00 0.01

sagu Saguaro 0.23 0.23 0.23 0.31 0.30 0.29 0.00 0.00 0.00

sian Sierra Ancha 0.87 0.85 0.81 1.43 1.41 1.37 0.00 0.00 0.02

supe Superstition 0.81 0.78 0.75 1.30 1.27 1.23 0.00 0.00 0.03

syca Sycamore Canyon 0.76 0.74 0.69 1.46 1.45 1.43 0.00 0.00 0.03

Total 11.39 11.06 10.64 18.77 18.42 17.88 0.33

Max 3.38 3.28 3.18 4.73 4.60 4.40 0.10

# CIAs w. -dv >0.5 10 10 10 11 11 11 0

Table 5(b). Control Opon Cost Effecveness (million $/dv)†

Ctrl2-1 Ctrl2-2 Ctrl2-3 Ctrl2-4

CIA

SNCR u.1 + 

BART

SCR u.1 + 

BART SNCR u.1 SCR u.1

care Capitol Reef 26 48 30 51

gali Galiuro 100 385 125 184

gila Gila 200 605 100 177

grca Grand Canyon 22 36 25 40

mazaMazatzal 59 112 77 141

meveMesa Verde 36 74 27 60

mobaMount Baldy 91 212 200 212

pefo Petrified Forest 10 22 8 13

pimo Pine Mountain 200 146 62 128

sagu Saguaro N/A N/A 167 303

sian Sierra Ancha 59 74 45 67

supe Superstition 32 76 42 67

syca Sycamore Canyon 37 61 77 128

$/dv_sum 3.0 5.7 2.8 4.8 ($/yr) / (sum of dv benefits over all areas)

$/dv_max 10.3 21.7 7.7 12.8 ($/yr) / (max dv benefit of any area)

†$/dv = $ per year from Table 3 divided by delta dv from Table 1(d) for each control option, in millions

Class I Area

Class I Area

98th Percentile -dv Change relative to base (dv)

Number of Class I Areas with visibility imp
Ctrl2-2 Ctrl2-3 Ctrl2-4

SCR u.1 + 

BART SNCR u.1 SCR u.1

0.09 0.03 0.08

0.01 0.01 0.02

0.01 0.01 0.02

0.12 0.04 0.11

0.04 0.01 0.03

0.06 0.04 0.07

0.02 0.01 0.02

0.20 0.13 0.33

0.03 0.02 0.03

0.00 0.01 0.01

0.06 0.02 0.06

0.06 0.02 0.06

0.07 0.01 0.03

0.75 0.36 0.89

0.20 0.13 0.33

0 0 0

 Change relative to base (dv)

Number of Class I Areas with visibility improvement ≥ 0.5 dv

Base Ctrl2-1 Ctrl2-2 Rev Base-2 Ctrl2-3 Ctrl2-4

care 0.629 0.624 0.587 1.305 1.281 1.243

gali 0.367 0.360 0.349 0.489 0.475 0.456

gila 0.391 0.382 0.373 0.660 0.646 0.641

grca 1.956 1.880 1.760 3.889 3.837 3.755

maza 0.814 0.792 0.740 1.245 1.227 1.198

meve 0.455 0.435 0.406 0.985 0.967 0.944

moba 0.724 0.688 0.631 1.458 1.404 1.320

pefo 3.525 3.405 3.141 4.733 4.626 4.453

pimo 0.495 0.489 0.473 0.859 0.852 0.843

sagu 0.296 0.286 0.275 0.357 0.356 0.354

sian 0.882 0.854 0.810 1.524 1.501 1.466

supe 0.898 0.888 0.858 1.411 1.383 1.338

syca 0.764 0.737 0.664 1.460 1.448 1.429

Total 12.196 11.820 11.067 20.375 20.003 19.440

98th Percentile -dv

Table 1(b). Visibility Impairment (98th Percentile) at Each Class I Area (CIA) Within APS Cholla-1's Zone of Influence (300 km

CIA

2001
Ctrl2-1 Ctrl2-2 Ctrl2-3 Ctrl2-4 Base Ctrl2-1 Ctrl2-2

0.005 0.042 0.024 0.062 0.395 0.379 0.364

0.007 0.018 0.014 0.033 0.298 0.292 0.292

0.009 0.018 0.014 0.019 0.489 0.489 0.489

0.076 0.196 0.052 0.134 1.130 1.073 0.983

0.022 0.074 0.018 0.047 0.758 0.742 0.710

0.020 0.049 0.018 0.041 0.652 0.624 0.596

0.036 0.093 0.054 0.138 0.714 0.710 0.705

0.120 0.384 0.107 0.280 3.208 3.172 3.094

0.006 0.022 0.007 0.016 0.618 0.606 0.580

0.010 0.021 0.001 0.003 0.195 0.191 0.184

0.028 0.072 0.023 0.058 0.851 0.821 0.780

0.010 0.040 0.028 0.073 0.809 0.778 0.730

0.027 0.100 0.012 0.031 0.937 0.937 0.902

0.376 1.129 0.372 0.935 11.054 10.814 10.409

98th Change relative to base (-dv) Percentile 

1's Zone of Influence (300 km) for 2001-2003 Base Case Emissions and Control Options (listed in Table 2)
Rev Base-2 Ctrl2-3 Ctrl2-4 Ctrl2-1 Ctrl2-2 Ctrl2-3 Ctrl2-4

0.894 0.879 0.855 0.016 0.031 0.015 0.039

0.397 0.391 0.383 0.006 0.006 0.006 0.014

0.742 0.729 0.707 0.000 0.000 0.013 0.035

2.081 2.039 1.974 0.057 0.147 0.042 0.107

1.213 1.187 1.158 0.016 0.048 0.026 0.055

1.363 1.323 1.270 0.028 0.056 0.040 0.093

1.280 1.253 1.219 0.004 0.009 0.027 0.061

4.166 4.135 4.068 0.036 0.114 0.031 0.098

1.051 1.028 0.994 0.012 0.038 0.023 0.057

0.269 0.258 0.242 0.004 0.011 0.011 0.027

1.434 1.408 1.367 0.030 0.071 0.026 0.067

1.351 1.328 1.292 0.031 0.079 0.023 0.059

1.659 1.644 1.622 0.000 0.035 0.015 0.037

17.900 17.602 17.151 0.240 0.645 0.298 0.749

 Percentile -dv Change relative to base (-dv)

2002
Base Ctrl2-1 Ctrl2-2 Rev Base-2 Ctrl2-3 Ctrl2-4 Ctrl2-1

0.789 0.768 0.748 1.806 1.762 1.692 0.021

0.228 0.227 0.222 0.403 0.390 0.368 0.001

0.530 0.511 0.481 0.754 0.749 0.749 0.019

0.843 0.808 0.805 1.491 1.467 1.430 0.035

0.841 0.832 0.789 1.243 1.232 1.215 0.009

0.809 0.783 0.724 1.653 1.617 1.562 0.026

0.682 0.682 0.681 0.937 0.917 0.885 0.000

3.458 3.363 3.273 4.883 4.821 4.766 0.095

0.508 0.508 0.488 0.675 0.674 0.672 0.000

0.170 0.169 0.167 0.270 0.268 0.264 0.001

0.824 0.820 0.814 1.227 1.224 1.220 0.004

0.669 0.651 0.639 0.968 0.959 0.945 0.018

0.542 0.535 0.524 1.011 0.993 0.966 0.007

10.893 10.657 10.355 17.321 17.073 16.734 0.236

98 Change relati

th Percentile -dv

2003
Ctrl2-2 Ctrl2-3 Ctrl2-4 Base Ctrl2-1 Ctrl2-2 Rev Base-2

0.041 0.044 0.114 0.705 0.667 0.617 1.461

0.006 0.013 0.035 0.303 0.293 0.292 0.470

0.049 0.005 0.005 0.483 0.478 0.476 0.716

0.038 0.024 0.061 1.138 1.092 1.021 2.220

0.052 0.011 0.028 0.792 0.775 0.754 1.245

0.085 0.036 0.091 0.652 0.624 0.595 1.332

0.001 0.020 0.052 0.710 0.699 0.690 1.231

0.185 0.062 0.117 3.379 3.282 3.184 4.729

0.020 0.001 0.003 0.553 0.548 0.524 0.876

0.003 0.002 0.006 0.228 0.228 0.228 0.307

0.010 0.003 0.007 0.871 0.854 0.814 1.430

0.030 0.009 0.023 0.809 0.778 0.753 1.296

0.018 0.018 0.045 0.764 0.737 0.694 1.460

0.538 0.248 0.587 11.387 11.055 10.642 18.773

 Change relative to base (-dv) 98th Percentile -dv
Ctrl2-3 Ctrl2-4 Ctrl2-1 Ctrl2-2 Ctrl2-3 Ctrl2-4

1.428 1.378 0.038 0.088 0.033 0.083

0.462 0.447 0.010 0.011 0.008 0.023

0.706 0.692 0.005 0.007 0.010 0.024

2.180 2.115 0.046 0.117 0.040 0.105

1.232 1.215 0.017 0.038 0.013 0.030

1.295 1.261 0.028 0.057 0.037 0.071

1.226 1.211 0.011 0.020 0.005 0.020

4.600 4.399 0.097 0.195 0.129 0.330

0.860 0.843 0.005 0.029 0.016 0.033

0.301 0.293 0.000 0.000 0.006 0.014

1.408 1.367 0.017 0.057 0.022 0.063

1.272 1.233 0.031 0.056 0.024 0.063

1.447 1.427 0.027 0.070 0.013 0.033

18.417 17.881 0.332 0.745 0.356 0.892

All Years

 Change relative to base (dv)
lookup tables

Cholla Control scenarios

scenarios unit 1 units 2-4 short

Base LNB+SOFA LNB+CCSOFA Base Case

Ctrl2-1 SNCR+LNB+SOFA SCR SNCR u.1 + BART

Ctrl2-2 SCR+LNB+SOFA SCR SCR u.1 + BART

Rev Base-2 Post-LNB;SO2corr Post-LNB;SO2corr;FGD-FFSpec Rev Base+FFSpec

Ctrl2-3 SNCR+LNB+SOFA LNB+CCSOFA SNCR u.1

Ctrl2-4 SCR+LNB+SOFA LNB+CCSOFA SCR u.1
Class I areas

abbr Class I area Class I area, medium Class I area, long

band Bandelier Bandelier NM Bandelier NM

brca Bryce Canyon Bryce Canyon NP Bryce Canyon NP

care Capitol Reef Capitol Reef NP Capitol Reef NP

chir Chiricahua NM Chiricahua NM Chiricahua NM

chrw Chiricahua Chiricahua Wild. Chiricahua Wilderness

gali Galiuro Galiuro Wild. Galiuro Wilderness

gila Gila Gila Wild. Gila Wilderness

grca Grand Canyon Grand Canyon NP Grand Canyon NP

jotr Joshua Tree Joshua Tree NP Joshua Tree NP

maza Mazatzal Mazatzal Wild. Mazatzal Wilderness

meve Mesa Verde Mesa Verde NP Mesa Verde NP

moba Mount Baldy Mount Baldy Wild. Mount Baldy Wilderness

pefo Petrified Forest Petrified Forest NP Petrified Forest NP

pimo Pine Mountain Pine Mountain Wild. Pine Mountain Wilderness

sagu Saguaro Saguaro NP Saguaro NP

sape San Pedro Parks San Pedro Parks Wild. San Pedro Parks Wilderness

sian Sierra Ancha Sierra Ancha Wild. Sierra Ancha Wilderness

supe Superstition Superstition Wild. Superstition Wilderness

syca Sycamore Canyon Sycamore Canyon Wild. Sycamore Canyon Wilderness

zion Zion Zion NP Zion NP
state

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UT

UT

AZ

AZ

AZ

NM

AZ

CA

AZ

CO

AZ

AZ

AZ

AZ

NM

AZ

AZ

AZ

UT