## AEPCO Apache units 2 and 3

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

### Controls **Technology Used**  **-Emissions**

**(TPY, annual) Technology** 

**Used** **-Emissions**

**(TPY, annual)** **-Emissions**

**(TPY, annual) $/year**  Pre-LNB NOx u.2 **Base Case** OFA 0None (current) 0 0 $0 Pre-LNB 2; LNB 3 **Ctrl-1** OFA 0LNB 908 908 $1,280,825 SNCR u.3 **Ctrl-2** LNB 700LNB + SNCR 1544 2244 $4,411,902 Pre-LNB 2, SCR **Ctrl-3** LNB + SCR 2019LNB + SCR 2682 4701 $13,034,430 SNCR u.3 **Ctrl-4** OFA 0LNB + SNCR 1544 1544 $3,142,336 SCR u.3 **Ctrl-5** OFA 0LNB + SCR 2682 2682 $6,626,847 Pre-LNB 2, SCR 3 **Ctrl-6** LNB 700LNB + SCR 2682 3382 $7,896,413 Post-LNB 2, LNB 3 **Ctrl1-R** LNB 700LNB 908 1608 $2,550,391 Post-LNB 2, SNCR **Ctrl2-R** LNB+SNCR 1190LNB+SNCR 1544 2734 $5,971,695 Pre-LNB 2, SCR+H2SO4 **Ctrl3-S** LNB+SCR 2019LNB+SCR 2682 4701 $13,034,430 **Table 3. NOx Control Technologies for AEPCO Apache Units 2-3**(from Andover Technology Partners Report Table 4-4)
LNB LNB/SNCR LNB/SCR LNB LNB/SNCR LNB/SCR Capacity Factor 0.62 0.62 0.62 0.71 0.71 0.71 Control Efficiency 0.3 0.51 0.87 0.3 0.51 0.89 **Uncontrolled Rate** NOx Rate (lb/hr) 859 859 859 974 974 974 NOx Rate (lb/MMBtu) 0.37 0.37 0.37 0.44 0.44 0.44 NOx (TPY) 2333 2333 2333 3028 3028 3028 **Controlled Rate** NOx Rate (lb/hr) 601 421 116 682 477 111 NOx Rate (lb/MMBtu) 0.26 0.18 0.05 0.31 0.21 0.05 NOx (TPY) 1633 1143 314 2120 1484 346
**Tons/Year Removed** 700 1190 2019 908 1544 2683
**Total Cost, $/year** $1,269,566 $2,829,359 $6,407,583 $1,280,825 $3,142,336 $6,626,847 **$/Ton** $1,814 $2,378 $3,174 $1,410 $2,039 $2,477 **$/Ton (incremental)** $1,814 $3,184 $3,896 $1,410 $2,934 $3,022



## AEPCO Apache units 2 and 3 * 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**  **Unit 2 Unit 3** 

**Apache 2 - NOx Apache 3 - NOx** 



## AEPCO Apache units 2 and 3

visibility method 6, annual average background Using dv from area with highest impact (9 areas)

Controls **Control Option**  

### ton/yr

**reduction cost, $/yr** 

**(millions) $/ton** 

**reduction visibility** 

**impact, dv visibility** 

**benefit, dv dv/TPY** 

**(x 1000) $/dv** 

**(millions)** # CIAs w/

improvement ≥0.5 dv **Pre-LNB NOx u.2 Base Case**  

### 0 $0.0 3.1 **Pre-LNB 2; LNB 3 Ctrl-1**  

### 908 $1.3 $1,411 2.9 0.20 0.221 $6.4 0 **SNCR u.3 Ctrl-2**  

### 2244 $4.4 $1,966 2.5 0.62 0.274 $7.2 2 **Pre-LNB 2, SCR Ctrl-3**  

### 4701 $13.0 $2,773 1.6 1.50 0.320 $8.7 4 **SNCR u.3 Ctrl-4**  

### 1544 $3.1 $2,035 2.7 0.33 0.210 $9.7 0 **SCR u.3 Ctrl-5**  

### 2682 $6.6 $2,471 2.5 0.65 0.241 $10.2 2 **Pre-LNB 2, SCR 3 Ctrl-6**  

### 3382 $7.9 $2,335 2.2 0.96 0.284 $8.2 4 **Post-LNB 2, LNB 3 Ctrl1-R**  

### 1608 $2.6 $1,586 2.6 0.45 0.279 $5.7 0 **Post-LNB 2, SNCR Ctrl2-R**  

### 2734 $6.0 $2,184 2.3 0.84 0.308 $7.1 3 **Pre-LNB 2, SCR+H2SO4 Ctrl3-S**  

### 4701 $13.0 $2,773 1.7 1.32 0.281 $9.9 4 (same tons & costs as above) Using dv sum over all areas (9 areas) Controls **Control Option**  

### ton/yr

**reduction cost, $/yr** 

**(millions) $/ton** 

**reduction visibility** 

**impact, dv visibility** 

**benefit, dv dv/TPY** 

**(x 1000) $/dv** 

**(millions) Pre-LNB NOx u.2**  **Base Case** 

### 0 $0.0 12.0 **Pre-LNB 2; LNB 3 Ctrl-1**  

### 908 $1.3 $1,411 11.2 0.80 0.882 $1.6 **SNCR u.3 Ctrl-2**  

### 2244 $4.4 $1,966 9.5 2.50 1.113 $1.8 **Pre-LNB 2, SCR Ctrl-3**  

### 4701 $13.0 $2,773 5.9 6.09 1.295 $2.1 **SNCR u.3 Ctrl-4**  

### 1544 $3.1 $2,035 10.7 1.38 0.891 $2.3 **SCR u.3 Ctrl-5**  

### 2682 $6.6 $2,471 9.4 2.59 0.964 $2.6 **Pre-LNB 2, SCR 3 Ctrl-6**  

### 3382 $7.9 $2,335 8.3 3.68 1.089 $2.1 **Post-LNB 2, LNB 3 Ctrl1-R**  

### 1608 $2.6 $1,586 10.1 1.89 1.174 $1.4 **Post-LNB 2, SNCR Ctrl2-R**  

### 2734 $6.0 $2,184 8.7 3.29 1.202 $1.8 **Pre-LNB 2, SCR+H2SO4 Ctrl3-S**  

### 4701 $13.0 $2,773 6.6 5.47 1.164 $2.4AEPCO Apache units 2 and 3 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**
Base Case Ctrl-1 Ctrl-2 Ctrl-3 Ctrl-4 Ctrl-5 Ctrl-6 Ctrl1-R Ctrl2-R Ctrl3-S Base Case Ctrl-1 Ctrl-2 Ctrl-3 Ctrl-4 Ctrl-5 Ctrl-6 Ctrl1-R Ctrl2-R Ctrl3-S CIA **Class I Area** Pre-LNB NOx u.2 Pre-LNB 2;

LNB 3 SNCR u.3 Pre-LNB 2, SCR SNCR u.3 SCR u.3 Pre-LNB 2, SCR 3 Post-LNB 2,

LNB 3 Post-LNB 2,

SNCR Pre-LNB 2,

SCR+H2SO4 Pre-LNB

NOx u.2 Pre-LNB

2; LNB 3 SNCR u.3 Pre-LNB 2, SCR SNCR u.3 SCR u.3 Pre-LNB 2, SCR 3 Post-LNB 2,

LNB 3 Post-LNB 2,

SNCR Pre-LNB 2,

SCR+H2SO4 chir Chiricahua NM **3.06** 2.90 2.48 1.55 2.74 2.45 2.19 2.62 2.29 1.74 0.00 0.16 0.58 1.50 0.31 0.60 0.87 **0.44 0.77**  **1.32** chrwChiricahua 3.02 2.82 2.41 1.55 2.70 2.38 2.06 2.57 2.18 1.71 0.00 0.20 0.62 1.47 0.33 0.65 0.96 0.45 0.84 1.31 gali Galiuro 1.90 1.75 1.50 0.92 1.65 1.49 1.36 1.57 1.40 1.02 0.00 0.15 0.40 0.98 0.25 0.41 0.54 0.33 0.49 0.88 gila Gila 0.48 0.44 0.35 0.18 0.40 0.35 0.30 0.37 0.32 0.20 0.00 0.04 0.13 0.30 0.08 0.13 0.18 0.11 0.16 0.28 mazaMazatzal 0.25 0.22 0.19 0.12 0.21 0.19 0.16 0.21 0.17 0.13 0.00 0.02 0.06 0.13 0.03 0.06 0.08 0.04 0.08 0.12 mobaMount Baldy 0.22 0.19 0.15 0.07 0.18 0.15 0.12 0.17 0.13 0.08 0.00 0.02 0.06 0.14 0.04 0.07 0.10 0.05 0.09 0.14 sagu Saguaro 2.31 2.15 1.84 1.16 2.06 1.83 1.63 1.96 1.70 1.27 0.00 0.16 0.47 1.15 0.25 0.48 0.68 0.35 0.61 1.04 sian Sierra Ancha 0.25 0.23 0.19 0.12 0.21 0.19 0.16 0.20 0.17 0.13 0.00 0.02 0.06 0.13 0.03 0.06 0.09 0.04 0.08 0.12 supe Superstition 0.56 0.52 0.43 0.26 0.50 0.42 0.37 0.47 0.38 0.28 0.00 0.04 0.13 0.30 0.06 0.14 0.19 0.09 0.18 0.27 **Total** 12.03 11.22 9.53 5.94 10.65 9.44 8.34 10.14 8.74 6.56 0.80 2.50 6.09 1.38 2.59 3.68 1.89 3.29 5.47 **Max** 3.06 2.90 2.48 1.55 2.74 2.45 2.19 2.62 2.29 1.74 0.20 0.62 1.50 0.33 0.65 0.96 0.45 0.84 1.32 **# CIAs w/ D-dv ≥ 0.5**  5 5 4 4 4 4 4 4 4 4 0 2 4 0 2 4 0 3 4
**Table 4(a). Control Option Visibility Benefits (dv/thousand TPY)*** Ctrl-1 Ctrl-2 Ctrl-3 Ctrl-4 Ctrl-5 Ctrl-6 Ctrl1-R Ctrl2-R Ctrl3-S CIA Pre-LNB 2; LNB 3 SNCR u.3 Pre-LNB 2, SCR SNCR u.3 SCR u.3 Pre-LNB 2, SCR 3 Post-LNB 2,

LNB 3 Post-LNB 2,

SNCR Pre-LNB 2,

SCR+H2SO4 chir Chiricahua NM 0.173 0.258 0.320 0.203 0.224 0.257 0.273 0.281 0.281 chrwChiricahua 0.221 0.274 0.314 0.210 0.241 0.284 0.279 0.308 0.279 gali Galiuro 0.161 0.177 0.207 0.160 0.152 0.159 0.203 0.180 0.186 gila Gila 0.046 0.058 0.063 0.050 0.049 0.054 0.067 0.059 0.060 mazaMazatzal 0.024 0.025 0.027 0.021 0.022 0.025 0.023 0.028 0.025 mobaMount Baldy 0.024 0.029 0.030 0.024 0.024 0.028 0.030 0.031 0.030 sagu Saguaro 0.171 0.208 0.244 0.163 0.180 0.200 0.215 0.222 0.220 sian Sierra Ancha 0.023 0.026 0.027 0.022 0.022 0.026 0.027 0.029 0.025 supe Superstition 0.039 0.058 0.063 0.038 0.050 0.055 0.056 0.064 0.058 **Average** 0.098 0.124 0.144 0.099 0.107 0.121 0.130 0.134 0.129 average of all area's (dv/annual TPY) **dv_sum/TPY** 0.882 1.113 1.295 0.891 0.964 1.089 1.174 1.202 1.164 (sum of dv benefits over all areas) / (annual TPY) **dv_max/TPY** 0.221 0.274 0.320 0.210 0.241 0.284 0.279 0.308 0.281 (max dv benefit of any area) / (annual TPY) *Uses the formula: dv/thousand TPY = 1000 * (dv change relative to base) / (TPY reduction relative to base) **Table 5(a). Control Option Cost Effectiveness (million $/dv)†** Ctrl-1 Ctrl-2 Ctrl-3 Ctrl-4 Ctrl-5 Ctrl-6 Ctrl1-R Ctrl2-R Ctrl3-S CIA Pre-LNB 2; LNB 3 SNCR u.3 Pre-LNB 2, SCR SNCR u.3 SCR u.3 Pre-LNB 2, SCR 3 Post-LNB 2,

LNB 3 Post-LNB 2,

SNCR Pre-LNB 2,

SCR+H2SO4 chir Chiricahua NM 8 8 9 10 11 9 6 8 10 chrwChiricahua 6 7 9 10 10 8 6 7 10 gali Galiuro 9 11 13 13 16 15 8 12 15 gila Gila 30 34 44 41 50 43 24 37 46 mazaMazatzal 58 79 103 98 114 95 69 79 111 mobaMount Baldy 58 69 92 85 102 82 52 70 94 sagu Saguaro 8 9 11 12 14 12 7 10 13 sian Sierra Ancha 61 76 103 92 112 91 58 76 111 supe Superstition 37 34 44 54 49 42 28 34 48 **$/dv_sum** 1.6 1.8 2.1 2.3 2.6 2.1 1.4 1.8 2.4 ($/yr) / (sum of dv benefits over all areas) **$/dv_max** 6.4 7.2 8.7 9.7 10.2 8.2 5.7 7.1 9.9 ($/yr) / (max dv benefit of any area) **98 th** **Percentile****-dv Change relative to base (dv)** 

Number of Class I Areas with visibility improvement≥0.5 dv

†$/dv = $ per year from Table 3 divided by delta dv from Table 1(a) for each control option, in millions Number of Class I Areas with visibility impairment≥0.5 dv

**Class I Area Class I Area** 

Chiricahua NM Chiricahua Galiuro Gila Mazatzal Mount Baldy Saguaro Sierra Ancha Superstition Base Case Pre

-LNB NOx u.2 3.06 3.02 1.90 0
.48 0
.25 0.22 2
.31 0.25 0
.56 Ctrl1

-R Post

-LNB 2, LNB 3 2
.62 2.57 1
.57 0
.37 0.21 0.17 1.96 0.20 0.47 Ctrl2

-R Post

-LNB2, SNCR 2
.29 2.18 1
.40 0.32 0
.17 0.13 1
.70 0.17 0
.38 Ctrl3

-S Pre

-LNB2, SCR+H2SO4 1.74 1.71 1.02 0.20 0.13 0
.08 1
.27 0.13 0
.28

0.00 0
.50 1.00 1
.50 2.00 2
.50 3
.00 3.50**V i** **s i** **b i** **l i** **t y** **I m** **p a** **i r** **m e** **n t** **(****- d** **v )**  **Apache: 98th Percentile Visibility Impairment, IMPROVE Method 6 Ann. Avg. Background**

Chiricahua NM Chiricahua Galiuro Gila Mazatzal Mount Baldy Saguaro Sierra Ancha Superstition Base Case Pre

-LNB NOx u.2 0
.00 0.00 0.00 0.00 0.00 0
.00 0
.00 0.00 0
.00 Ctrl1

-R Post

-LNB2, LNB3 0.44 0
.45 0.33 0
.11 0.04 0
.05 0
.35 0.04 0.09 Ctrl2

-R Post

-LNB 2, SNCR 0.77 0
.84 0
.49 0.16 0
.08 0
.09 0.61 0
.08 0.18 Ctrl3

-S Pre

-LNB2, SCR+H2SO4 1.32 1
.31 0
.88 0.28 0.12 0.14 1.04 0
.12 0
.27

0.00 0
.20 0
.40 0.60 0
.80 1.00 1
.20 1.40**V i** **s i** **b i** **l i** **t y** **B e** **n e** **f i** **t ,** **d v**  **Apache: Visibility Benefit of Controls, IMPROVE Method 6** **Ann. Avg. Background Table 2. Control Options (per EPA Region 9) and Corresponding Emission Reductions Relative to Base Used in Visibility Modeling**  Conversion (lb/day to TPY) : **All Units All Units**  **Base Ctrl-1**  **Ctrl-2 Ctrl-3**  **Ctrl-4 Ctrl-5**  **Ctrl-6 Ctrl1-R**  **Ctrl2-R Ctrl3-S**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6**  **Ctrl1-R Ctrl2-R**  **Ctrl3-S Base**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6**  **Ctrl1-R Ctrl2-R**  **Ctrl3-S Ctrl-1**  **Ctrl-2 Ctrl-3**  **Ctrl-4 Ctrl-5**  **Ctrl-6 Ctrl1-R**  **Ctrl2-R Ctrl3-S**  **Base Ctrl-1**  **Ctrl-2 Ctrl-3**  **Ctrl-4 Ctrl-5**  **Ctrl-6 Ctrl1_R**  **Ctrl2_R Ctrl3_S**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6**  **Ctrl1-R Ctrl2-R**  **Ctrl3-S Base**  **Ctrl-1 Ctrl-3**  **Ctrl-4 Ctrl-5**  **Ctrl-6 Ctrl1-R**  **Ctrl2-R Ctrl3-S**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6**  **Ctrl1-R Ctrl2-R**  **Ctrl3-S Technology**  **Used** 

**- Emissions** 

**(TPY) Technology** 

**Used** 

**- Emissions** 

**(TPY)** 

**-**

**Emissions $/year**  chir 3.112 2.898 2.444 1.481 2.744 2.413 2.077 2.616 2.205 1.59 0.214 0.668 1.631 0.368 0.699 1.035 0.496 0.907 1.522 2.826 2.690 2.431 1.634 2.598 2.419 2.249 2.524 2.308 1.799 0.136 0.395 1.192 0.228 0.407 0.577 0.302 0.518 1.027 3.055 2.926 2.476 1.527 2.740 2.454 2.186 2.607 2.288 1.668 0.129 0.579 1.528 0.315 0.601 0.869 0.448 0.767 1.387 3.055 2.898 1.552 2.742 2.454 2.186 2.616 2.288 1.735 0.157 0.579 1.503 0.313 0.601 0.869 0.439 0.767 1.320 Base Case OFA 0 None 0 0 $0 chrw 3.023 2.812 2.355 1.550 2.658 2.326 2.056 2.529 2.146 1.715 0.211 0.668 1.473 0.365 0.697 0.967 0.494 0.877 1.308 2.943 2.822 2.408 1.475 2.698 2.376 2.061 2.574 2.182 1.593 0.121 0.535 1.468 0.245 0.567 0.882 0.369 0.761 1.350 2.975 2.761 2.320 1.398 2.610 2.293 1.976 2.485 2.094 1.51 0.214 0.655 1.577 0.365 0.682 0.999 0.490 0.881 1.465 3.023 2.822 1.549 2.698 2.376 2.061 2.574 2.182 1.712 0.201 0.615 1.474 0.325 0.647 0.962 0.449 0.841 1.311 Ctrl-1 OFA 0 LNB 908 908 $1,280,825 gali 1.576 1.478 1.224 0.748 1.398 1.214 1.123 1.322 1.155 0.833 0.098 0.352 0.828 0.178 0.362 0.453 0.254 0.421 0.743 1.832 1.651 1.323 0.869 1.527 1.317 1.232 1.426 1.261 0.953 0.181 0.509 0.963 0.305 0.515 0.600 0.406 0.571 0.879 2.297 2.170 1.896 1.138 2.078 1.879 1.664 2.001 1.745 1.224 0.127 0.401 1.159 0.219 0.418 0.633 0.296 0.552 1.073 1.895 1.749 0.920 1.648 1.488 1.356 1.568 1.402 1.02 0.146 0.398 0.975 0.247 0.407 0.539 0.327 0.493 0.875 Ctrl-2 LNB 700 LNB + SNCR 1544 2244 $4,411,902 gila 0.509 0.444 0.330 0.170 0.402 0.329 0.259 0.368 0.28 0.18 0.065 0.179 0.339 0.107 0.180 0.250 0.141 0.229 0.329 0.567 0.515 0.411 0.218 0.479 0.406 0.328 0.451 0.355 0.234 0.052 0.156 0.349 0.088 0.161 0.239 0.116 0.212 0.333 0.388 0.351 0.289 0.172 0.329 0.288 0.242 0.311 0.26 0.181 0.037 0.099 0.216 0.059 0.100 0.146 0.077 0.128 0.207 0.479 0.437 0.182 0.402 0.347 0.297 0.371 0.318 0.197 0.042 0.130 0.297 0.077 0.132 0.182 0.108 0.161 0.282 Ctrl-3 LNB + SCR 2019 LNB + SCR 2682 4701 $13,034,430 maza 0.263 0.238 0.205 0.135 0.223 0.204 0.179 0.211 0.19 0.144 0.025 0.058 0.128 0.040 0.059 0.084 0.052 0.073 0.119 0.240 0.226 0.200 0.133 0.217 0.199 0.182 0.209 0.187 0.144 0.014 0.040 0.107 0.023 0.041 0.058 0.031 0.053 0.096 0.199 0.187 0.163 0.104 0.179 0.163 0.142 0.172 0.15 0.11 0.012 0.036 0.095 0.020 0.036 0.057 0.027 0.049 0.089 0.245 0.223 0.119 0.213 0.187 0.162 0.208 0.169 0.128 0.022 0.056 0.126 0.032 0.058 0.083 0.037 0.076 0.117 Ctrl-4 OFA 0 LNB + SNCR 1544 1544 $3,142,336 moba 0.212 0.190 0.147 0.067 0.175 0.146 0.118 0.162 0.128 0.07 0.022 0.065 0.145 0.037 0.066 0.094 0.050 0.084 0.142 0.224 0.203 0.154 0.098 0.185 0.151 0.129 0.171 0.133 0.102 0.021 0.070 0.126 0.039 0.073 0.095 0.053 0.091 0.122 0.176 0.157 0.121 0.070 0.145 0.121 0.098 0.134 0.105 0.074 0.019 0.055 0.106 0.031 0.055 0.078 0.042 0.071 0.102 0.216 0.194 0.074 0.179 0.151 0.120 0.167 0.131 0.077 0.022 0.064 0.142 0.037 0.065 0.096 0.049 0.085 0.139 Ctrl-5 OFA 0 LNB + SCR 2682 2682 $6,626,847 sagu 2.113 1.995 1.741 1.046 1.910 1.725 1.462 1.838 1.58 1.152 0.118 0.372 1.067 0.203 0.388 0.651 0.275 0.533 0.961 2.503 2.359 2.038 1.166 2.254 2.017 1.752 2.163 1.854 1.308 0.144 0.465 1.337 0.249 0.486 0.751 0.340 0.649 1.195 2.239 2.106 1.837 1.254 2.027 1.823 1.600 1.946 1.68 1.413 0.133 0.402 0.985 0.212 0.416 0.639 0.293 0.559 0.826 2.308 2.153 1.161 2.056 1.826 1.630 1.963 1.7 1.273 0.155 0.466 1.147 0.252 0.482 0.678 0.345 0.608 1.035 Ctrl-6 LNB 700 LNB + SCR 2682 3382 $7,896,413 sian 0.247 0.218 0.185 0.111 0.199 0.184 0.154 0.191 0.165 0.122 0.029 0.062 0.136 0.048 0.063 0.093 0.056 0.082 0.125 0.271 0.245 0.211 0.140 0.233 0.209 0.187 0.223 0.194 0.149 0.026 0.060 0.131 0.038 0.062 0.084 0.048 0.077 0.122 0.242 0.221 0.182 0.120 0.207 0.181 0.155 0.196 0.163 0.127 0.021 0.060 0.122 0.035 0.061 0.087 0.046 0.079 0.115 0.247 0.226 0.121 0.213 0.188 0.160 0.203 0.168 0.13 0.021 0.058 0.126 0.034 0.059 0.087 0.044 0.079 0.117 Ctrl1-R LNB 700 LNB 908 1608 $2,550,391 supe 0.543 0.492 0.407 0.257 0.457 0.405 0.371 0.428 0.382 0.28 0.051 0.136 0.286 0.086 0.138 0.172 0.115 0.161 0.263 0.622 0.573 0.482 0.244 0.541 0.477 0.399 0.515 0.427 0.263 0.049 0.140 0.378 0.081 0.145 0.223 0.107 0.195 0.359 0.451 0.416 0.351 0.275 0.393 0.351 0.335 0.373 0.34 0.3 0.035 0.100 0.176 0.058 0.100 0.116 0.078 0.111 0.151 0.557 0.522 0.259 0.499 0.422 0.371 0.467 0.382 0.283 0.035 0.131 0.298 0.058 0.135 0.186 0.090 0.175 0.274 Ctrl2-R LNB+SNCR 1190 LNB+SNCR 1544 2734 $5,971,695 Ctrl3-S LNB+SCR 2019 LNB+SCR 2682 4701 $13,034,430 **2001 Table 3. NOx Control Technologies for AEPCO Apache Units 2-3** (from Andover Technology Partners Report Table 4-4) **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6**  **Ctrl1-R Ctrl2-R**  **Ctrl3-S Ctrl-1**  **Ctrl-2 Ctrl-3**  **Ctrl-4 Ctrl-5**  **Ctrl-6 Ctrl1-R**  **Ctrl2-R Ctrl3-S**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6**  **Ctrl1-R Ctrl2-R**  **Ctrl3-S Ctrl-1**  **Ctrl-2 Ctrl-3**  **Ctrl-4 Ctrl-5**  **Ctrl-6 Ctrl1-R**  **Ctrl2-R Ctrl3-S**  chir 0.236 0.298 0.347 0.238 0.261 0.306 0.308 0.332 0.324 0.150 0.176 0.254 0.148 0.152 0.171 0.188 0.189 0.218 0.142 0.258 0.325 0.204 0.224 0.257 0.279 0.281 0.295 0.173 0.258 0.320 0.203 0.224 0.257 0.273 0.281 0.281 LNB LNB/SNCR LNB/SCR LNB LNB/SNCR LNB/SCR chrw 0.232 0.298 0.313 0.236 0.260 0.286 0.307 0.321 0.278 0.133 0.238 0.312 0.159 0.211 0.261 0.229 0.278 0.287 0.236 0.292 0.335 0.236 0.254 0.295 0.305 0.322 0.312 0.221 0.274 0.314 0.210 0.241 0.284 0.279 0.308 0.279 Capacity Factor 62% 62% 62% 71% 71% 71% gali 0.108 0.157 0.176 0.115 0.135 0.134 0.158 0.154 0.158 0.199 0.227 0.205 0.198 0.192 0.177 0.252 0.209 0.187 0.140 0.179 0.247 0.142 0.156 0.187 0.184 0.202 0.228 0.161 0.177 0.207 0.160 0.152 0.159 0.203 0.180 0.186 Control Efficiency 30% 51% 87% 30% 51% 89% gila 0.072 0.080 0.072 0.069 0.067 0.074 0.088 0.084 0.070 0.057 0.070 0.074 0.057 0.060 0.071 0.072 0.078 0.071 0.041 0.044 0.046 0.038 0.037 0.043 0.048 0.047 0.044 0.046 0.058 0.063 0.050 0.049 0.054 0.067 0.059 0.060 **Uncontrolled Rate** maza 0.028 0.026 0.027 0.026 0.022 0.025 0.032 0.027 0.025 0.015 0.018 0.023 0.015 0.015 0.017 0.019 0.019 0.020 0.013 0.016 0.020 0.013 0.013 0.017 0.017 0.018 0.019 0.024 0.025 0.027 0.021 0.022 0.025 0.023 0.028 0.025 NOx Rate (lb/hr) 859 859 859 974 974 974 moba 0.024 0.029 0.031 0.024 0.025 0.028 0.031 0.031 0.030 0.023 0.031 0.027 0.025 0.027 0.028 0.033 0.033 0.026 0.021 0.025 0.023 0.020 0.021 0.023 0.026 0.026 0.022 0.024 0.029 0.030 0.024 0.024 0.028 0.030 0.031 0.030 NOx Rate (lb/MMBtu) 0.37 0.37 0.37 0.44 0.44 0.44 sagu 0.130 0.166 0.227 0.131 0.145 0.192 0.171 0.195 0.204 0.159 0.207 0.284 0.161 0.181 0.222 0.211 0.237 0.254 0.146 0.179 0.210 0.137 0.155 0.189 0.182 0.204 0.176 0.171 0.208 0.244 0.163 0.180 0.200 0.215 0.222 0.220 NOx (TPY) 2333 2333 2333 3028 3028 3028 sian 0.032 0.028 0.029 0.031 0.023 0.027 0.035 0.030 0.027 0.029 0.027 0.028 0.025 0.023 0.025 0.030 0.028 0.026 0.023 0.027 0.026 0.023 0.023 0.026 0.029 0.029 0.024 0.023 0.026 0.027 0.022 0.022 0.026 0.027 0.029 0.025 **Controlled Rate** supe 0.056 0.061 0.061 0.056 0.051 0.051 0.072 0.059 0.056 0.054 0.062 0.080 0.052 0.054 0.066 0.067 0.071 0.076 0.039 0.045 0.037 0.038 0.037 0.034 0.049 0.041 0.032 0.039 0.058 0.063 0.038 0.050 0.055 0.056 0.064 0.058 NOx Rate (lb/hr) 601 421 116 682 477 111 *Uses the formula: dv/1000 TPY≡ NOx Rate (lb/MMBtu) 0.26 0.18 0.05 0.31 0.21 0.05 TPY reduction relative to base NOx (TPY) 1633 1143 314 2120 1484 346 sjb 2012-07-12: fixed SCR formula, updated unit 2 LNB+SNCR cost **Table 5(a). Control Option Cost Effectiveness (million $/dv) †** **for Each Class I Area Within AEPCO Apache's Zone of Influence (300 km) for 2001-2003** (see "EGU BART Costs_Apache_Cholla_Coronado_FINAL2.xlsx") **Tons/Year Removed** 700 1190 2019 908 1544 2683 unit 2 unit 3 **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6**  **Ctrl1-R Ctrl2-R**  **Ctrl3-S Ctrl-1**  **Ctrl-2 Ctrl-3**  **Ctrl-4 Ctrl-5**  **Ctrl-6 Ctrl1-R**  **Ctrl2-R Ctrl3-S**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6**  **Ctrl1-R Ctrl2-R**  **Ctrl3-S Ctrl-1**  **Ctrl-2 Ctrl-3**  **Ctrl-4 Ctrl-5**  **Ctrl-6 Ctrl1-R**  **Ctrl2-R Ctrl3-S**  $/yr LNB/SNCR LNB/SCR LNB/SNCR LNB/SCR chir 6 7 8 9 9 8 5 7 9 9 11 11 14 16 14 8 12 13 10 8 9 10 11 9 6 8 9 8 8 9 10 11 9 6 8 10 **Total Cost, $/year**$1,269,566 $2,829,359 ########## $1,280,825 ########## ########## should be $2,829,359 $6,407,583 $3,142,336 $6,626,847 chrw 6 7 9 9 10 8 5 7 10 11 8 9 13 12 9 7 8 10 6 7 8 9 10 8 5 7 9 6 7 9 10 10 8 6 7 10 **$/Ton** $1,814 $2,378 $3,174 $1,410 $2,039 $2,477 was $2,829,359 $6,697,809 $3,145,366 $7,213,488 gali 13 13 16 18 18 17 10 14 18 7 9 14 10 13 13 6 10 15 10 11 11 14 16 12 9 11 12 9 11 13 13 16 15 8 12 15 **$/Ton (incremental)** $1,814 $3,184 $3,896 $1,410 $2,934 $3,022 difference $0 -$290,226 -$3,030 -$586,641 gila 20 25 38 29 37 32 18 26 40 25 28 37 36 41 33 22 28 39 35 45 60 53 66 54 33 47 63 30 34 44 41 50 43 24 37 46 maza 51 76 102 79 112 94 49 82 110 91 110 122 137 162 136 82 113 136 107 123 137 157 184 139 94 122 146 58 79 103 98 114 95 69 79 111 % difference 0.00% -4.53% -0.10% -8.85% moba 58 68 90 85 100 84 51 71 92 61 63 103 81 91 83 48 66 107 67 80 123 101 120 101 61 84 128 58 69 92 85 102 82 52 70 94 sagu 11 12 12 15 17 12 9 11 14 9 9 10 13 14 11 8 9 11 10 11 13 15 16 12 9 11 16 8 9 11 12 14 12 7 10 13 sian 44 71 96 65 105 85 46 73 104 49 74 99 83 107 94 53 78 107 61 74 107 90 109 91 55 76 113 61 76 103 92 112 91 58 76 111 supe 25 32 46 37 48 46 22 37 50 26 32 34 39 46 35 24 31 36 37 44 74 54 66 68 33 54 86 37 34 44 54 49 42 28 34 48 **Notes**

Higher pre-LNB NOx emissions on Unit 2 Incremental visibility impact of LNB on Unit 3 (compared to Base Case) Incremental visibility impactof SCR for all units (compared toCtrl2-R)

* 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 **Ap ache 2 – NOx**  **Ap ache 3 - NOx** Post-LNB NOx emissions+SNCR on both units H2SO4fugitive emissions sensitivity w.r.t. Base Case; SCR on both units **All Years** Incremental impact of LNB on Unit 2 (compared to Ctrl-4)

**2003 2003** 

**All Years** Per conf call with Uma on 4/11, already completed. Per conf call with Uma on 4/11, already completed. Incremental visibility impact of SCR on Unit 3 (compared to Ctrl-2) Post-LNB NOx emissions on both units

†million$/dv = $/year ( in millions) from Table 3 divided by change in dv from Table 1(a) for each control option. **CIA**

**CIA CIA** 

**2001 2002**  **2002 98** **th Percentile** **-dv Change relative to base (dv)**  **2001 Change relative to base (dv)**  **98 th**  **Percentile****-dv 2002** 

1000 * dv change relative to base **98 th**  **Percentile****-dv Change relative to base (dv)**  **Unit 3 2003**  **Change relative to base (dv) All Years**  **Table 1(a). Visibility Impairment (98** **th Percentile) at Each Class I Area (CIA) Within AEPCO Apache's Zone of Influence (300 km) for 2001-2003 Base Case Emissions and Control Options**  (listed in Table 2)

**Table 4(a). Control Option Visibility Benefits (dv/1000 TPY)* for Each Class I Area Within AEPCO Apache's Zone of Influence (300 km) for 2001-2003** **Unit 2 Control Option**  **98 th**  **Percentile****-dv**

## AEPCO Apache units 2 and 3

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

### Controls **Technology Used**  **-Emissions**

**(TPY, annual) Technology** 

**Used** **-Emissions**

**(TPY, annual)** **-Emissions**

**(TPY, annual) $/year**  Pre-LNB NOx u.2 **Base Case** OFA 0None (current) 0 0 $0 Pre-LNB 2; LNB 3 **Ctrl-1** OFA 0LNB 908 908 $1,280,825 SNCR u.3 **Ctrl-2** LNB 700LNB + SNCR 1544 2244 $4,411,902 Pre-LNB 2, SCR **Ctrl-3** LNB + SCR 2019LNB + SCR 2682 4701 $13,034,430 SNCR u.3 **Ctrl-4** OFA 0LNB + SNCR 1544 1544 $3,142,336 SCR u.3 **Ctrl-5** OFA 0LNB + SCR 2682 2682 $6,626,847 Pre-LNB 2, SCR 3 **Ctrl-6** LNB 700LNB + SCR 2682 3382 $7,896,413 Post-LNB 2, LNB 3 **Ctrl1-R** LNB 700LNB 908 1608 $2,550,391 Post-LNB 2, SNCR **Ctrl2-R** LNB+SNCR 1190LNB+SNCR 1544 2734 $5,971,695 Pre-LNB 2, SCR+H2SO4 **Ctrl3-S** LNB+SCR 2019LNB+SCR 2682 4701 $13,034,430 **Table 3. NOx Control Technologies for AEPCO Apache Units 2-3**(from Andover Technology Partners Report Table 4-4)
LNB LNB/SNCR LNB/SCR LNB LNB/SNCR LNB/SCR Capacity Factor 0.62 0.62 0.62 0.71 0.71 0.71 Control Efficiency 0.3 0.51 0.87 0.3 0.51 0.89 **Uncontrolled Rate** NOx Rate (lb/hr) 859 859 859 974 974 974 NOx Rate (lb/MMBtu) 0.37 0.37 0.37 0.44 0.44 0.44 NOx (TPY) 2333 2333 2333 3028 3028 3028 **Controlled Rate** NOx Rate (lb/hr) 601 421 116 682 477 111 NOx Rate (lb/MMBtu) 0.26 0.18 0.05 0.31 0.21 0.05 NOx (TPY) 1633 1143 314 2120 1484 346
**Tons/Year Removed** 700 1190 2019 908 1544 2683
**Total Cost, $/year** $1,269,566 $2,829,359 $6,407,583 $1,280,825 $3,142,336 $6,626,847 **$/Ton** $1,814 $2,378 $3,174 $1,410 $2,039 $2,477 **$/Ton (incremental)** $1,814 $3,184 $3,896 $1,410 $2,934 $3,022



## AEPCO Apache units 2 and 3 * 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**  **Unit 2 Unit 3** 

**Apache 2 - NOx Apache 3 - NOx** 



## AEPCO Apache units 2 and 3

visibility method 6, 20% best background Using dv from area with highest impact (9 areas)

Controls **Control Option**  

### ton/yr

**reduction cost, $/yr** 

**(millions) $/ton** 

**reduction visibility** 

**impact, dv visibility** 

**benefit, dv dv/TPY (x** 

**1000) $/dv** 

**(millions)** # areas w/

improvement > 0.5 dv **Pre-LNB NOx u.2 Base Case**  

### 0 $0.0 3.8 **Pre-LNB 2; LNB 3 Ctrl-1**  

### 908 $1.3 $1,411 3.6 0.26 0.281 $5.0 0 **SNCR u.3 Ctrl-2**  

### 2244 $4.4 $1,966 3.1 0.77 0.344 $5.7 3 **Pre-LNB 2, SCR Ctrl-3**  

### 4701 $13.0 $2,773 2.0 1.84 0.391 $7.1 4 **SNCR u.3 Ctrl-4**  

### 1544 $3.1 $2,035 3.4 0.42 0.272 $7.5 0 **SCR u.3 Ctrl-5**  

### 2682 $6.6 $2,471 3.1 0.81 0.302 $8.2 4 **Pre-LNB 2, SCR 3 Ctrl-6**  

### 3382 $7.9 $2,335 2.7 1.19 0.352 $6.6 4 **Post-LNB 2, LNB 3 Ctrl1-R**  

### 1608 $2.6 $1,586 3.3 0.57 0.354 $4.5 2 **Post-LNB 2, SNCR Ctrl2-R**  

### 2734 $6.0 $2,184 2.9 1.03 0.378 $5.8 4 **Pre-LNB 2, SCR+H2SO4 Ctrl3-S**  

### 4701 $13.0 $2,773 2.2 1.61 0.343 $8.1 4 (same tons & costs as above) Using dv sum over all areas (9 areas) Controls **Control Option**  

### ton/yr

**reduction cost, $/yr** 

**(millions) $/ton** 

**reduction visibility** 

**impact, dv visibility** 

**benefit, dv dv/TPY (x** 

**1000) $/dv** 

**(millions) Pre-LNB NOx u.2**  **Base Case** 

### 0 $0.0 15.2 **Pre-LNB 2; LNB 3 Ctrl-1**  

### 908 $1.3 $1,411 14.1 1.01 1.109 $1.3 **SNCR u.3 Ctrl-2**  

### 2244 $4.4 $1,966 12.0 3.11 1.387 $1.4 **Pre-LNB 2, SCR Ctrl-3**  

### 4701 $13.0 $2,773 7.6 7.55 1.607 $1.7 **SNCR u.3 Ctrl-4**  

### 1544 $3.1 $2,035 13.5 1.70 1.102 $1.8 **SCR u.3 Ctrl-5**  

### 2682 $6.6 $2,471 11.9 3.22 1.202 $2.1 **Pre-LNB 2, SCR 3 Ctrl-6**  

### 3382 $7.9 $2,335 10.6 4.60 1.360 $1.7 **Post-LNB 2, LNB 3 Ctrl1-R**  

### 1608 $2.6 $1,586 12.8 2.36 1.470 $1.1 **Post-LNB 2, SNCR Ctrl2-R**  

### 2734 $6.0 $2,184 11.0 4.11 1.502 $1.5 **Pre-LNB 2, SCR+H2SO4 Ctrl3-S**  

### 4701 $13.0 $2,773 8.4 6.77 1.440 $1.9AEPCO Apache units 2 and 3 visibility method 6, 20% best background (this page edited from vis6.20best sheet) **Table 1(b). Visibility Impairment (98th Percentile) for 2001-2003 Base Case Emissions and Control Options**

Base Case Ctrl-1 Ctrl-2 Ctrl-3 Ctrl-4 Ctrl-5 Ctrl-6 Ctrl1-R Ctrl2-R Ctrl3-S Base Case Ctrl-1 Ctrl-2 Ctrl-3 Ctrl-4 Ctrl-5 Ctrl-6 Ctrl1-R Ctrl2-R Ctrl3-S CIA **Class I Area** Pre-LNB NOx u.2 Pre-LNB 2;

LNB 3 SNCR u.3 Pre-LNB 2, SCR SNCR u.3 SCR u.3 Pre-LNB 2, SCR 3 Post-LNB 2,

LNB 3 Post-LNB 2,

SNCR Pre-LNB 2,

SCR+H2SO4 Pre-LNB

NOx u.2 Pre-LNB

2; LNB 3 SNCR u.3 Pre-LNB 2, SCR SNCR u.3 SCR u.3 Pre-LNB 2, SCR 3 Post-LNB 2,

LNB 3 Post-LNB 2,

SNCR Pre-LNB 2,

SCR+H2SO4 chir Chiricahua NM **3.82** 3.61 3.10 1.98 3.43 3.07 2.74 3.27 2.87 2.21 0.00 0.22 0.73 1.84 0.39 0.75 1.08 **0.56 0.96**  **1.61** chrw Chiricahua 3.78 3.53 3.01 1.96 3.36 2.98 2.59 3.21 2.75 2.17 0.00 0.26 0.77 1.83 0.42 0.81 1.19 0.57 1.03 1.61 gali Galiuro 2.39 2.21 1.89 1.18 2.08 1.88 1.72 1.98 1.78 1.31 0.00 0.18 0.50 1.21 0.31 0.51 0.67 0.41 0.61 1.08 gila Gila 0.61 0.56 0.45 0.24 0.52 0.44 0.38 0.47 0.41 0.26 0.00 0.05 0.17 0.38 0.09 0.17 0.24 0.14 0.21 0.36 mazaMazatzal 0.32 0.29 0.25 0.15 0.28 0.24 0.21 0.27 0.22 0.17 0.00 0.03 0.07 0.17 0.04 0.08 0.11 0.05 0.10 0.15 mobaMount Baldy 0.28 0.25 0.20 0.10 0.23 0.20 0.16 0.22 0.17 0.10 0.00 0.03 0.08 0.19 0.05 0.09 0.13 0.06 0.11 0.18 sagu Saguaro 2.90 2.73 2.35 1.50 2.62 2.33 2.07 2.50 2.15 1.64 0.00 0.17 0.55 1.40 0.28 0.57 0.83 0.40 0.75 1.26 sian Sierra Ancha 0.32 0.29 0.25 0.16 0.28 0.24 0.21 0.26 0.22 0.17 0.00 0.03 0.08 0.16 0.04 0.08 0.11 0.06 0.10 0.15 supe Superstition 0.72 0.67 0.55 0.34 0.65 0.55 0.48 0.60 0.49 0.37 0.00 0.05 0.17 0.39 0.08 0.18 0.25 0.12 0.23 0.36 **Total** 15.15 14.15 12.04 7.60 13.45 11.93 10.55 12.79 11.05 8.38 1.01 3.11 7.55 1.70 3.22 4.60 2.36 4.11 6.77 **Max** 3.82 3.61 3.10 1.98 3.43 3.07 2.74 3.27 2.87 2.21 0.26 0.77 1.84 0.42 0.81 1.19 0.57 1.03 1.61 **# CIAs w/****-dv ≥ 0.5**  6 6 5 4 6 5 4 5 4 4 0 3 4 0 4 4 2 4 4
**Table 4(b). Control Option Visibility Benefits (dv/thousand TPY)*** Ctrl-1 Ctrl-2 Ctrl-3 Ctrl-4 Ctrl-5 Ctrl-6 Ctrl1-R Ctrl2-R Ctrl3-S CIA Pre-LNB 2; LNB 3 SNCR u.3 Pre-LNB 2, SCR SNCR u.3 SCR u.3 Pre-LNB 2, SCR 3 Post-LNB 2,

LNB 3 Post-LNB 2,

SNCR Pre-LNB 2,

SCR+H2SO4 chir Chiricahua NM 0.239 0.324 0.391 0.254 0.281 0.319 0.346 0.349 0.343 chrw Chiricahua 0.281 0.344 0.389 0.272 0.302 0.352 0.354 0.378 0.343 gali Galiuro 0.198 0.221 0.257 0.198 0.189 0.198 0.252 0.225 0.231 gila Gila 0.058 0.075 0.080 0.060 0.064 0.069 0.086 0.076 0.076 mazaMazatzal 0.032 0.033 0.035 0.027 0.028 0.033 0.032 0.037 0.033 mobaMount Baldy 0.032 0.037 0.039 0.031 0.032 0.037 0.040 0.041 0.039 sagu Saguaro 0.184 0.244 0.299 0.183 0.212 0.246 0.248 0.274 0.269 sian Sierra Ancha 0.032 0.034 0.035 0.028 0.029 0.033 0.037 0.038 0.032 supe Superstition 0.053 0.076 0.082 0.050 0.066 0.072 0.074 0.084 0.076 **Average** 0.123 0.154 0.179 0.122 0.134 0.151 0.163 0.167 0.160 average of all area's (dv/annual TPY) **dv_sum/TPY** 1.109 1.387 1.607 1.102 1.202 1.360 1.470 1.502 1.440 (sum of dv benefits over all areas) / (annual TPY) **dv_max/TPY** 0.281 0.344 0.391 0.272 0.302 0.352 0.354 0.378 0.343 (max dv benefit of any area) / (annual TPY) *Uses the formula: dv/thousand TPY = 1000 * (dv change relative to base) / (TPY reduction relative to base) **Table 5(b). Control Option Cost Effectiveness (million $/dv)†** Ctrl-1 Ctrl-2 Ctrl-3 Ctrl-4 Ctrl-5 Ctrl-6 Ctrl1-R Ctrl2-R Ctrl3-S CIA Pre-LNB 2; LNB 3 SNCR u.3 Pre-LNB 2, SCR SNCR u.3 SCR u.3 Pre-LNB 2, SCR 3 Post-LNB 2,

LNB 3 Post-LNB 2,

SNCR Pre-LNB 2,

SCR+H2SO4 chir Chiricahua NM 6 6 7 8 9 7 5 6 8 chrw Chiricahua 5 6 7 7 8 7 4 6 8 gali Galiuro 7 9 11 10 13 12 6 10 12 gila Gila 24 26 34 34 39 34 18 29 36 mazaMazatzal 44 60 79 77 88 72 50 60 85 mobaMount Baldy 44 53 70 65 78 63 40 54 72 sagu Saguaro 8 8 9 11 12 9 6 8 10 sian Sierra Ancha 44 58 80 71 85 71 43 57 86 supe Superstition 27 26 34 41 38 32 21 26 37 **$/dv_sum** 1.3 1.4 1.7 1.8 2.1 1.7 1.1 1.5 1.9 ($/yr) / (sum of dv benefits over all areas) **$/dv_max** 5.0 5.7 7.1 7.5 8.2 6.6 4.5 5.8 8.1 ($/yr) / (max dv benefit of any area)
†$/dv = $ per year from Table 3 divided by delta dv from Table 1(b) for each control option, in millions

**Class I Area Change relative to base (dv)**  **98 th** **Percentile****-dv**

**Class I Area** Number of Class I Areas with visibility impairment≥ 0.5 dv Number of Class I Areas with visibility improvement≥ 0.5 dv

Chiricahua NM Chiricahua Galiuro Gila Mazatzal Mount Baldy Saguaro Sierra Ancha Superstition Base Case Pre

-LNB NOx u.2 3
.82 3
.78 2
.39 0.61 0
.32 0.28 2.90 0.32 0
.72 Ctrl1

-R Post

-LNB 2, LNB 3 3.27 3
.21 1.98 0
.47 0.27 0
.22 2
.50 0
.26 0
.60 Ctrl2

-R Post

-LNB 2, SNCR 2
.87 2.75 1.78 0.41 0
.22 0.17 2.15 0
.22 0.49 Ctrl3

-S Pre

-LNB2, SCR+H2SO4 2.21 2
.17 1
.31 0
.26 0
.17 0.10 1
.64 0.17 0.37

0.00 0
.50 1.00 1.50 2
.00 2.50 3
.00 3.50 4
.00 4
.50**V i** **s i** **b i** **l i** **t y** **I m** **p a** **i r** **m e** **n t** **(****- d** **v )**  **Apache: 98** **th Percentile Visibility Impairment,**

**IMPROVE Method 6 20** **% Best Background**

Chiricahua NM Chiricahua Galiuro Gila Mazatzal Mount Baldy Saguaro Sierra Ancha Superstition Base Case Pre

-LNB NOx u.2 0
.00 0
.00 0
.00 0
.00 0
.00 0.00 0.00 0.00 0
.00 Ctrl1

-R Post

-LNB 2, LNB 3 0.56 0.57 0
.41 0.14 0
.05 0.06 0
.40 0
.06 0
.12 Ctrl2

-R Post

-LNB2, SNCR 0
.96 1.03 0.61 0.21 0
.10 0.11 0.75 0.10 0
.23 Ctrl3

-S Pre

-LNB 2, SCR+H2SO4 1
.61 1.61 1
.08 0
.36 0
.15 0
.18 1
.26 0.15 0.36

0.00 0
.20 0.40 0.60 0.80 1
.00 1.20 1
.40 1.60 1
.80**V i** **s i** **b i** **l i** **t y** **B e** **n e** **f i** **t ,** **d v** **Apache: Visibility Benefit of Controls, IMPROVE Method 6 20** **% Best Background**

# Base **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6** 

chir 3.862 3.605 3.056 1.896 3.419 3.019 2.609 chrw 3.784 3.529 2.971 1.975 3.342 2.936 2.594 gali 2.011 1.880 1.562 0.957 1.781 1.541 1.418 gila 0.659 0.576 0.424 0.217 0.521 0.423 0.333 maza 0.339 0.307 0.264 0.176 0.291 0.264 0.233 moba 0.276 0.247 0.192 0.088 0.228 0.190 0.154 sagu 2.690 2.543 2.221 1.351 2.437 2.197 1.878 sian 0.321 0.284 0.237 0.145 0.259 0.237 0.201 supe 0.702 0.636 0.523 0.332 0.590 0.521 0.477

**Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6**  **Ctrl1-R** chir 0.283 0.359 0.418 0.287 0.314 0.370 0.371 chrw 0.281 0.362 0.385 0.286 0.316 0.352 0.373 gali 0.144 0.200 0.224 0.149 0.175 0.175 0.202 gila 0.091 0.105 0.094 0.089 0.088 0.096 0.115 maza 0.035 0.033 0.035 0.031 0.028 0.031 0.041 moba 0.032 0.037 0.040 0.031 0.032 0.036 0.040 sagu 0.162 0.209 0.285 0.164 0.184 0.240 0.213 sian 0.041 0.037 0.037 0.040 0.031 0.035 0.047 supe 0.073 0.080 0.079 0.073 0.067 0.067 0.092 *Uses the formula:

**Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6**  **Ctrl1-R** chir 5 5 7 7 8 6 4 chrw 5 5 7 7 8 7 4 gali 10 10 12 14 14 13 8 gila 15 19 29 23 28 24 14 maza 40 59 80 65 88 74 39 moba 44 53 69 65 77 65 40 sagu 9 9 10 12 13 10 7 sian 35 53 74 51 79 66 34 **CIA 98** **th**

# Percentile**-dv**

**Table 5(b). Control Option Cost Effectiveness ($/dv) †** **for Each Class I Area Within AEPCO Apache's Zone of Influence (300 km) for 2001-2003** 

# 2001

**2001 CIA**  **Table 1(b). Visibility Impairment (98** **th**

# Percentile) at Each Class I Area (CIA) Within AEPCO Apache's Zone of Influence (300 km) for 2001-2003 Base Case Emissions and Control Options



# CIA **Table 4(b). Control Option Visibility Benefits (dv/1000 TPY)* for Each Class I Area Within AEPCO Apache's Zone of Influence (300 km) for 2001-2003**



# dv/1000 TPY≡ 1000 * dv change relative to base

TPY reduction relative to base

# supe 19 25 35 28 37 35 17

†million

# $/dv = $/year from Table 3 divided by change in dv from Table 1(b) for each control option, in millions.

# Ctrl1-R **Ctrl2-R Ctrl3-S**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5**

3.265 2.765 2.033 0.257 0.806 1.966 0.443 0.843 3.184 2.694 2.177 0.255 0.813 1.809 0.442 0.848 1.686 1.457 1.065 0.131 0.449 1.054 0.230 0.470 0.474 0.36 0.231 0.083 0.235 0.442 0.138 0.236 0.273 0.247 0.187 0.032 0.075 0.163 0.048 0.075 0.212 0.166 0.091 0.029 0.084 0.188 0.048 0.086 2.348 2.023 1.486 0.147 0.469 1.339 0.253 0.493 0.245 0.215 0.158 0.037 0.084 0.176 0.062 0.084 0.554 0.491 0.364 0.066 0.179 0.370 0.112 0.181

**Ctrl2-R Ctrl3-S**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6**  0.401 0.389 0.183 0.214 0.311 0.179 0.185 0.208 0.399 0.342 0.161 0.295 0.379 0.201 0.261 0.320 0.203 0.201 0.249 0.289 0.261 0.247 0.244 0.226 0.109 0.091 0.074 0.092 0.096 0.073 0.079 0.092 0.034 0.032 0.020 0.024 0.029 0.019 0.020 0.022 0.040 0.039 0.029 0.039 0.034 0.030 0.034 0.036 0.244 0.256 0.193 0.254 0.351 0.198 0.222 0.273 0.039 0.035 0.039 0.036 0.036 0.033 0.030 0.033 0.077 0.072 0.068 0.080 0.104 0.067 0.069 0.085

**Ctrl2-R Ctrl3-S**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6**  5 7 8 9 9 11 13 11 5 8 9 7 7 10 9 7 11 14 6 7 11 8 10 10 20 30 19 21 29 28 31 25 65 86 71 83 95 105 125 105 54 70 49 50 81 67 73 65 9 11 7 8 8 10 11 9 56 80 37 55 76 62 82 72 **for Each Class I Area Within AEPCO Apache's Zone of Influence (300 km) for 2001-2003** 

# 2002 **Percentile) at Each Class I Area (CIA) Within AEPCO Apache's Zone of Influence (300 km) for 2001-2003 Base Case Emissions and Control Options**(listed in Table 2)

**Table 4(b). Control Option Visibility Benefits (dv/1000 TPY)* for Each Class I Area Within AEPCO Apache's Zone of Influence (300 km) for 2001-2003** 

# Change relative to base (dv) **2001**

**2002**

# 28 39 21 25 27 30 36 28 $/dv = $/year from Table 3 divided by change in dv from Table 1(b) for each control option, in millions.

# Ctrl-6 **Ctrl1-R Ctrl2-R**  **Ctrl3-S Base**  **Ctrl-1 Ctrl-2**  **Ctrl-3**

1.253 0.597 1.097 1.829 3.552 3.386 3.071 2.089 1.190 0.600 1.090 1.607 3.674 3.528 3.013 1.890 0.593 0.325 0.554 0.946 2.335 2.109 1.687 1.110 0.326 0.185 0.299 0.428 0.733 0.666 0.527 0.283 0.106 0.066 0.092 0.152 0.310 0.292 0.257 0.173 0.122 0.064 0.110 0.185 0.288 0.262 0.200 0.128 0.812 0.342 0.667 1.204 3.151 2.976 2.581 1.503 0.120 0.076 0.106 0.163 0.353 0.318 0.273 0.182 0.225 0.148 0.211 0.338 0.805 0.743 0.625 0.316

**Ctrl1-R Ctrl2-R**  **Ctrl3-S Ctrl-1**  **Ctrl-2 Ctrl-3**  **Ctrl-4 Ctrl-5**  0.228 0.231 0.271 0.166 0.324 0.402 0.238 0.281 0.286 0.338 0.348 0.285 0.355 0.414 0.287 0.309 0.316 0.265 0.238 0.172 0.221 0.308 0.175 0.193 0.095 0.102 0.091 0.052 0.057 0.059 0.049 0.048 0.025 0.025 0.026 0.019 0.021 0.026 0.017 0.018 0.040 0.042 0.033 0.028 0.032 0.030 0.027 0.027 0.259 0.292 0.312 0.170 0.219 0.255 0.161 0.190 0.040 0.037 0.034 0.029 0.034 0.034 0.028 0.029 0.085 0.092 0.099 0.051 0.057 0.049 0.049 0.048

**Ctrl1-R Ctrl2-R**  **Ctrl3-S Ctrl-1**  **Ctrl-2 Ctrl-3**  **Ctrl-4 Ctrl-5**  7 9 10 8 6 7 9 9 6 6 8 5 6 7 7 8 5 8 12 8 9 9 12 13 17 21 30 27 35 47 42 52 62 88 106 75 94 105 116 138 39 52 84 51 61 94 77 91 6 7 9 8 9 11 13 13 40 60 82 49 57 82 71 84 **2003**

**2003** (listed in Table 2) 

# Change relative to base (dv)

# 19 24 28 28 34 56 41 51

# Ctrl-4 **Ctrl-5 Ctrl-6**  **Ctrl1-R Ctrl2-R**  **Ctrl3-S Ctrl-1**  **Ctrl-2**

3.275 3.056 2.847 3.185 2.92 2.276 0.166 0.481 3.364 2.975 2.592 3.214 2.751 2.037 0.146 0.661 1.954 1.680 1.572 1.827 1.61 1.215 0.226 0.648 0.620 0.521 0.421 0.581 0.455 0.304 0.067 0.206 0.280 0.257 0.235 0.269 0.242 0.187 0.018 0.053 0.241 0.197 0.167 0.223 0.173 0.133 0.026 0.088 2.846 2.555 2.227 2.735 2.353 1.683 0.175 0.570 0.302 0.272 0.243 0.289 0.253 0.194 0.035 0.080 0.701 0.619 0.518 0.668 0.554 0.341 0.062 0.180

**Ctrl-6 Ctrl1-R**  **Ctrl2-R Ctrl3-S**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  0.319 0.351 0.349 0.366 0.239 0.324 0.391 0.254 0.360 0.370 0.393 0.385 0.281 0.344 0.389 0.272 0.232 0.228 0.250 0.285 0.198 0.221 0.257 0.198 0.055 0.061 0.060 0.056 0.058 0.075 0.080 0.060 0.022 0.022 0.023 0.025 0.032 0.033 0.035 0.027 0.030 0.034 0.034 0.029 0.032 0.037 0.039 0.031 0.223 0.216 0.242 0.215 0.184 0.244 0.299 0.183 0.034 0.037 0.037 0.032 0.032 0.034 0.035 0.028 0.044 0.063 0.053 0.043 0.053 0.076 0.082 0.050

**Ctrl-6 Ctrl1-R**  **Ctrl2-R Ctrl3-S**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  7 5 6 8 6 6 7 8 6 4 6 7 5 6 7 7 10 7 9 10 7 9 11 10 42 26 36 50 24 26 34 34 105 71 95 112 44 60 79 77 77 46 64 96 44 53 70 65 10 7 9 13 8 8 9 11 69 43 59 87 44 58 80 71 **98 th** 

# Percentile**-dv 2002** 

# 53 25 41 65 27 26 34 41

# Ctrl-3 **Ctrl-4 Ctrl-5**  **Ctrl-6 Ctrl1-R**  **Ctrl2-R Ctrl3-S**  **Base**

1.463 0.277 0.496 0.705 0.367 0.632 1.276 3.822 1.784 0.310 0.699 1.082 0.460 0.923 1.637 3.720 1.225 0.381 0.655 0.763 0.508 0.725 1.120 2.910 0.450 0.113 0.212 0.312 0.152 0.278 0.429 0.499 0.137 0.030 0.053 0.075 0.041 0.068 0.123 0.259 0.160 0.047 0.091 0.121 0.065 0.115 0.155 0.230 1.648 0.305 0.596 0.924 0.416 0.798 1.468 2.805 0.171 0.051 0.081 0.110 0.064 0.100 0.159 0.314 0.489 0.104 0.186 0.287 0.137 0.251 0.464 0.586

**Ctrl-5 Ctrl-6**  **Ctrl1-R Ctrl2-R**  **Ctrl3-S** 0.281 0.319 0.346 0.349 0.343 0.302 0.352 0.354 0.378 0.343 0.189 0.198 0.252 0.225 0.231 0.064 0.069 0.086 0.076 0.076 0.028 0.033 0.032 0.037 0.033 0.032 0.037 0.040 0.041 0.039 0.212 0.246 0.248 0.274 0.269 0.029 0.033 0.037 0.038 0.032 0.066 0.072 0.074 0.084 0.076

**Ctrl-5 Ctrl-6**  **Ctrl1-R Ctrl2-R**  **Ctrl3-S** 9 7 5 6 8 8 7 4 6 8 13 12 6 10 12 39 34 18 29 36 88 72 50 60 85 78 63 40 54 72 12 9 6 8 10 85 71 43 57 86 **All Years**

**All Years Change relative to base (dv)** 

# 38 32 21 26 37

# Ctrl-1 **Ctrl-2 Ctrl-3**  **Ctrl-4 Ctrl-5**  **Ctrl-6 Ctrl1-R**  **Ctrl2-R**

3.671 3.096 1.931 3.454 3.069 2.742 3.257 2.867 3.461 2.923 1.772 3.277 2.890 2.501 3.125 2.645 2.754 2.413 1.460 2.640 2.393 2.125 2.544 2.226 0.452 0.372 0.223 0.424 0.371 0.312 0.401 0.335 0.242 0.212 0.135 0.232 0.211 0.184 0.223 0.196 0.205 0.158 0.091 0.189 0.157 0.127 0.175 0.137 2.651 2.313 1.605 2.556 2.295 2.050 2.457 2.144 0.288 0.237 0.155 0.270 0.235 0.199 0.255 0.213 0.540 0.457 0.354 0.510 0.457 0.436 0.485 0.442 **98 th** 

# Percentile**-dv**

# Ctrl3-S **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6**  **Ctrl1-R**

2.102 0.151 0.726 1.891 0.368 0.753 1.080 0.565 1.911 0.259 0.797 1.948 0.443 0.830 1.219 0.595 1.569 0.156 0.497 1.450 0.270 0.517 0.785 0.366 0.236 0.047 0.127 0.276 0.075 0.128 0.187 0.098 0.143 0.017 0.047 0.124 0.027 0.048 0.075 0.036 0.094 0.025 0.072 0.139 0.041 0.073 0.103 0.055 1.792 0.154 0.492 1.200 0.249 0.510 0.755 0.348 0.164 0.026 0.077 0.159 0.044 0.079 0.115 0.059 0.385 0.046 0.129 0.232 0.076 0.129 0.150 0.101 **Change relative to base (dv) 2003** 

# Ctrl2-R **Ctrl3-S Base**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5**

0.955 1.720 3.822 3.605 3.096 1.983 3.430 3.069 1.075 1.809 3.784 3.529 3.013 1.955 3.364 2.975 0.684 1.341 2.389 2.209 1.893 1.183 2.084 1.881 0.164 0.263 0.613 0.560 0.445 0.235 0.521 0.442 0.063 0.116 0.319 0.290 0.246 0.154 0.278 0.244 0.093 0.136 0.281 0.252 0.198 0.096 0.233 0.196 0.661 1.013 2.901 2.734 2.353 1.497 2.618 2.333 0.101 0.150 0.321 0.292 0.245 0.158 0.277 0.243 0.144 0.201 0.722 0.674 0.551 0.337 0.645 0.546 **98 th** 

# Percentile**-dv**

# Ctrl-6 **Ctrl1-R Ctrl2-R**  **Ctrl3-S Ctrl-1**  **Ctrl-2 Ctrl-3** 

2.742 3.265 2.867 2.21 0.217 0.726 1.839 2.594 3.214 2.751 2.173 0.255 0.771 1.829 1.718 1.984 1.775 1.305 0.180 0.496 1.206 0.378 0.474 0.405 0.255 0.053 0.168 0.378 0.209 0.268 0.219 0.165 0.029 0.073 0.165 0.156 0.217 0.17 0.1 0.029 0.083 0.185 2.068 2.502 2.151 1.638 0.167 0.548 1.404 0.209 0.262 0.217 0.17 0.029 0.076 0.163 0.477 0.603 0.491 0.366 0.048 0.171 0.385 **All Years**

# Ctrl-4 **Ctrl-5 Ctrl-6**  **Ctrl1-R Ctrl2-R**  **Ctrl3-S**

0.392 0.753 1.080 0.557 0.955 1.612 0.420 0.809 1.190 0.570 1.033 1.611 0.305 0.508 0.671 0.405 0.614 1.084 0.092 0.171 0.235 0.139 0.208 0.358 0.041 0.075 0.110 0.051 0.100 0.154 0.048 0.085 0.125 0.064 0.111 0.181 0.283 0.568 0.833 0.399 0.750 1.263 0.044 0.078 0.112 0.059 0.104 0.151 0.077 0.176 0.245 0.119 0.231 0.356 **Change relative to base (dv)**

## AEPCO Apache units 2 and 3 based on draft UNC results, 2012-04-30 (edited from aep_az_unit1-3_dollarperdv_analysis.xlsx)

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

### Controls **Technology Used**  **-Emissions**

**(TPY, annual) Technology** 

**Used** **-Emissions**

**(TPY, annual)** **-Emissions**

**(TPY, annual) $/year**  Pre-LNB NOx u.2 **Base Case** OFA 0None (current) 0 0 $0 Pre-LNB 2; LNB 3 **Ctrl-1** OFA 0LNB 908 908 $1,280,825 SNCR u.3 **Ctrl-2** LNB 700LNB + SNCR 1544 2244 $4,411,902 Pre-LNB 2, SCR **Ctrl-3** LNB + SCR 2019LNB + SCR 2682 4701 $13,034,430 SNCR u.3 **Ctrl-4** OFA 0LNB + SNCR 1544 1544 $3,142,336 SCR u.3 **Ctrl-5** OFA 0LNB + SCR 2682 2682 $6,626,847 Pre-LNB 2, SCR 3 **Ctrl-6** LNB 700LNB + SCR 2682 3382 $7,896,413 Post-LNB 2, LNB 3 **Ctrl1-R** LNB 700LNB 908 1608 $2,550,391 Post-LNB 2, SNCR **Ctrl2-R** LNB+SNCR 1190LNB+SNCR 1544 2734 $5,971,695 Pre-LNB 2, SCR+H2SO4 **Ctrl3-S** LNB+SCR 2019LNB+SCR 2682 4701 $13,034,430 **Table 3. NOx Control Technologies for AEPCO Apache Units 2-3**(from Andover Technology Partners Report Table 4-4)
LNB LNB/SNCR LNB/SCR LNB LNB/SNCR LNB/SCR Capacity Factor 0.62 0.62 0.62 0.71 0.71 0.71 Control Efficiency 0.3 0.51 0.87 0.3 0.51 0.89 **Uncontrolled Rate** NOx Rate (lb/hr) 859 859 859 974 974 974 NOx Rate (lb/MMBtu) 0.37 0.37 0.37 0.44 0.44 0.44 NOx (TPY) 2333 2333 2333 3028 3028 3028 **Controlled Rate** NOx Rate (lb/hr) 601 421 116 682 477 111 NOx Rate (lb/MMBtu) 0.26 0.18 0.05 0.31 0.21 0.05 NOx (TPY) 1633 1143 314 2120 1484 346
**Tons/Year Removed** 700 1190 2019 908 1544 2683
**Total Cost, $/year** $1,269,566 $2,829,359 $6,407,583 $1,280,825 $3,142,336 $6,626,847 **$/Ton** $1,814 $2,378 $3,174 $1,410 $2,039 $2,477 **$/Ton (incremental)** $1,814 $3,184 $3,896 $1,410 $2,934 $3,022



## AEPCO Apache units 2 and 3

visibility method 8, annual average background Using dv from area with highest impact (9 areas)

Controls **Control Option**  

### ton/yr

**reduction cost, $/yr** 

**(millions) $/ton** 

**reduction visibility** 

**impact, dv visibility** 

**benefit, dv dv/TPY** 

**(x 1000) $/dv** 

**(millions)** # areas w/

improvement > 0.5 dv **Pre-LNB NOx u.2 Base Case**  

### 0 $0.0 2.8 **Pre-LNB 2; LNB 3 Ctrl-1**  

### 908 $1.3 $1,411 2.6 0.21 0.232 $6.1 0 **SNCR u.3 Ctrl-2**  

### 2244 $4.4 $1,966 2.3 0.61 0.272 $7.2 2 **Pre-LNB 2, SCR Ctrl-3**  

### 4701 $13.0 $2,773 1.4 1.44 0.306 $9.1 4 **SNCR u.3 Ctrl-4**  

### 1544 $3.1 $2,035 2.5 0.33 0.216 $9.4 0 **SCR u.3 Ctrl-5**  

### 2682 $6.6 $2,471 2.3 0.64 0.238 $10.4 2 **Pre-LNB 2, SCR 3 Ctrl-6**  

### 3382 $7.9 $2,335 2.0 0.91 0.269 $8.7 4 **Post-LNB 2, LNB 3 Ctrl1-R**  

### 1608 $2.6 $1,586 2.4 0.44 0.275 $5.8 0 **Post-LNB 2, SNCR Ctrl2-R**  

### 2734 $6.0 $2,184 2.1 0.82 0.300 $7.3 4 **Pre-LNB 2, SCR+H2SO4 Ctrl3-S**  

### 4701 $13.0 $2,773 1.5 1.30 0.277 $10.0 4 (same tons & costs as above) Using dv sum over all areas (9 areas) Controls **Control Option**  

### ton/yr **reduction cost, $/yr** 

**(millions) $/ton** 

**reduction visibility** 

**impact, dv visibility** 

**benefit, dv dv/TPY** 

**(x 1000) $/dv** 

**(millions) Pre-LNB NOx u.2**  **Base Case** 

### 0 $0.0 11.1 **Pre-LNB 2; LNB 3 Ctrl-1**  

### 908 $1.3 $1,411 10.3 0.80 0.885 $1.6 **SNCR u.3 Ctrl-2**  

### 2244 $4.4 $1,966 8.7 2.37 1.054 $1.9 **Pre-LNB 2, SCR Ctrl-3**  

### 4701 $13.0 $2,773 5.2 5.84 1.242 $2.2 **SNCR u.3 Ctrl-4**  

### 1544 $3.1 $2,035 9.8 1.31 0.846 $2.4 **SCR u.3 Ctrl-5**  

### 2682 $6.6 $2,471 8.6 2.46 0.917 $2.7 **Pre-LNB 2, SCR 3 Ctrl-6**  

### 3382 $7.9 $2,335 7.6 3.50 1.035 $2.3 **Post-LNB 2, LNB 3 Ctrl1-R**  

### 1608 $2.6 $1,586 9.3 1.75 1.091 $1.5 **Post-LNB 2, SNCR Ctrl2-R**  

### 2734 $6.0 $2,184 7.9 3.14 1.148 $1.9 **Pre-LNB 2, SCR+H2SO4 Ctrl3-S**  

### 4701 $13.0 $2,773 5.7 5.34 1.135 $2.4 * 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**  **Unit 2 Unit 3** 

**Apache 2 - NOx Apache 3 - NOx** AEPCO Apache units 2 and 3 visibility method 8, annual average background (this page edited from vis8.annav sheet) **Table 1(c). Visibility Impairment (98**  **th Percentile) for 2001-2003 Base Case Emissions and Control Options** 

Base Case Ctrl-1 Ctrl-2 Ctrl-3 Ctrl-4 Ctrl-5 Ctrl-6 Ctrl1-R Ctrl2-R Ctrl3-S Base Case Ctrl-1 Ctrl-2 Ctrl-3 Ctrl-4 Ctrl-5 Ctrl-6 Ctrl1-R Ctrl2-R Ctrl3-S CIA **Class I Area** Pre-LNB NOx u.2 Pre-LNB 2;

LNB 3 SNCR u.3 Pre-LNB 2, SCR SNCR u.3 SCR u.3 Pre-LNB 2, SCR 3 Post-LNB 2,

LNB 3 Post-LNB 2,

SNCR Pre-LNB 2,

SCR+H2SO4 Pre-LNB

NOx u.2 Pre-LNB

2; LNB 3 SNCR u.3 Pre-LNB 2, SCR SNCR u.3 SCR u.3 Pre-LNB 2, SCR 3 Post-LNB 2,

LNB 3 Post-LNB 2,

SNCR Pre-LNB 2,

SCR+H2SO4 chir Chiricahua NM 2.78 2.62 2.27 1.37 2.51 2.26 2.00 2.41 2.10 1.52 0.00 0.16 0.50 1.40 0.27 0.52 0.78 0.36 0.68 1.26 chrwChiricahua **2.81** 2.60 2.20 1.37 2.48 2.17 1.90 2.37 1.99 1.51 0.00 0.21 0.61 1.44 0.33 0.64 0.91 **0.44 0.82**  **1.30** gali Galiuro 1.79 1.64 1.36 0.82 1.54 1.35 1.22 1.47 1.26 0.90 0.00 0.14 0.42 0.97 0.24 0.44 0.57 0.32 0.53 0.89 gila Gila 0.48 0.43 0.35 0.18 0.41 0.35 0.30 0.37 0.32 0.19 0.00 0.05 0.13 0.30 0.07 0.14 0.18 0.11 0.16 0.29 mazaMazatzal 0.22 0.20 0.17 0.10 0.19 0.17 0.14 0.18 0.15 0.11 0.00 0.02 0.05 0.12 0.03 0.05 0.08 0.04 0.07 0.11 mobaMount Baldy 0.21 0.19 0.15 0.07 0.17 0.15 0.12 0.16 0.13 0.07 0.00 0.02 0.07 0.14 0.04 0.07 0.09 0.05 0.09 0.14 sagu Saguaro 2.08 1.93 1.67 1.00 1.85 1.65 1.44 1.77 1.52 1.10 0.00 0.14 0.40 1.08 0.23 0.42 0.64 0.31 0.56 0.98 sian Sierra Ancha 0.23 0.21 0.17 0.11 0.20 0.17 0.15 0.18 0.15 0.12 0.00 0.02 0.06 0.12 0.04 0.06 0.08 0.05 0.08 0.11 supe Superstition 0.49 0.46 0.38 0.22 0.44 0.37 0.33 0.41 0.34 0.24 0.00 0.04 0.12 0.27 0.06 0.12 0.17 0.08 0.15 0.25 **Total** 11.08 10.28 8.72 5.24 9.78 8.62 7.58 9.33 7.94 5.75 0.80 2.37 5.84 1.31 2.46 3.50 1.75 3.14 5.34 **Max** 2.81 2.62 2.27 1.37 2.51 2.26 2.00 2.41 2.10 1.52 0.21 0.61 1.44 0.33 0.64 0.91 0.44 0.82 1.30 **# CIAs w/****-dv ≥ 0.5**  4 4 4 4 4 4 4 4 4 4 0 2 4 0 2 4 0 4 4
**Table 4(c). Control Option Visibility Benefits (dv/thousand TPY)*** Ctrl-1 Ctrl-2 Ctrl-3 Ctrl-4 Ctrl-5 Ctrl-6 Ctrl1-R Ctrl2-R Ctrl3-S CIA Pre-LNB 2; LNB 3 SNCR u.3 Pre-LNB 2, SCR SNCR u.3 SCR u.3 Pre-LNB 2, SCR 3 Post-LNB 2,

LNB 3 Post-LNB 2,

SNCR Pre-LNB 2,

SCR+H2SO4 chir Chiricahua NM 0.173 0.224 0.298 0.174 0.195 0.230 0.226 0.249 0.268 chrwChiricahua 0.232 0.272 0.306 0.216 0.238 0.269 0.275 0.300 0.277 gali Galiuro 0.159 0.189 0.206 0.157 0.164 0.169 0.200 0.192 0.189 gila Gila 0.052 0.060 0.064 0.048 0.050 0.054 0.067 0.060 0.061 mazaMazatzal 0.022 0.022 0.025 0.018 0.019 0.022 0.022 0.025 0.023 mobaMount Baldy 0.025 0.029 0.030 0.025 0.025 0.027 0.032 0.031 0.029 sagu Saguaro 0.157 0.180 0.229 0.149 0.158 0.189 0.191 0.204 0.209 sian Sierra Ancha 0.025 0.026 0.026 0.023 0.022 0.025 0.029 0.029 0.024 supe Superstition 0.040 0.052 0.057 0.037 0.045 0.049 0.049 0.056 0.053 **Average** 0.098 0.117 0.138 0.094 0.102 0.115 0.121 0.128 0.126 average of all area's (dv/annual TPY) **dv_sum/TPY** 0.885 1.054 1.242 0.846 0.917 1.035 1.091 1.148 1.135 (sum of dv benefits over all areas) / (annual TPY) **dv_max/TPY** 0.232 0.272 0.306 0.216 0.238 0.269 0.275 0.300 0.277 (max dv benefit of any area) / (annual TPY) *Uses the formula: dv/thousand TPY = 1000 * (dv change relative to base) / (TPY reduction relative to base) **Table 5(c). Control Option Cost Effectiveness (million $/dv)†** Ctrl-1 Ctrl-2 Ctrl-3 Ctrl-4 Ctrl-5 Ctrl-6 Ctrl1-R Ctrl2-R Ctrl3-S CIA Pre-LNB 2; LNB 3 SNCR u.3 Pre-LNB 2, SCR SNCR u.3 SCR u.3 Pre-LNB 2, SCR 3 Post-LNB 2,

LNB 3 Post-LNB 2,

SNCR Pre-LNB 2,

SCR+H2SO4 chir Chiricahua NM 8 9 9 12 13 10 7 9 10 chrwChiricahua 6 7 9 9 10 9 6 7 10 gali Galiuro 9 10 13 13 15 14 8 11 15 gila Gila 27 33 43 42 49 43 24 36 45 mazaMazatzal 64 88 112 112 130 104 71 88 120 mobaMount Baldy 56 67 91 83 99 85 50 69 94 sagu Saguaro 9 11 12 14 16 12 8 11 13 sian Sierra Ancha 56 76 109 90 110 94 55 76 115 supe Superstition 36 38 48 55 55 48 32 39 52 **$/dv_sum** 1.6 1.9 2.2 2.4 2.7 2.3 1.5 1.9 2.4 ($/yr) / (sum of dv benefits over all areas) **$/dv_max** 6.1 7.2 9.1 9.4 10.4 8.7 5.8 7.3 10.0 ($/yr) / (max dv benefit of any area)

†$/dv = $ per year from Table 3 divided by delta dv from Table 1(c) for each control option, in millions Number of Class I Areas with visibility impairment≥ 0.5 dv **Change relative to base (dv)**

**98 th** **Percentile****-dv**

**Class I Area**

**Class I Area** Number of Class I Areas with visibility improvement≥ 0.5 dv

Chiricahua NM Chiricahua Galiuro Gila Mazatzal Mount Baldy Saguaro Sierra Ancha Superstition Base Case Pre

-LNB NOx u.2 2.78 2.81 1.79 0
.48 0
.22 0.21 2
.08 0.23 0
.49 Ctrl1

-R Post

-LNB2, LNB3 2
.41 2
.37 1
.47 0
.37 0
.18 0
.16 1.77 0.18 0.41 Ctrl2

-R Post

-LNB2, SNCR 2
.10 1.99 1
.26 0.32 0
.15 0
.13 1
.52 0
.15 0
.34 Ctrl3

-S Pre

-LNB2, SCR+H2SO4 1
.52 1
.51 0.90 0.19 0.11 0
.07 1
.10 0.12 0
.24

0.00 0
.50 1
.00 1
.50 2
.00 2
.50 3
.00**V i** **s i** **b i** **l i** **t y** **I m** **p a** **i r** **m e** **n t** **(****- d** **v )** **Apache: 98** **th Percentile Visibility Impairment, IMPROVE Method 8** **Ann. Avg. Background**

Chiricahua NM Chiricahua Galiuro Gila Mazatzal Mount Baldy Saguaro Sierra Ancha Superstition Base Case Pre

-LNB NOx u.2 0
.00 0
.00 0
.00 0
.00 0.00 0.00 0.00 0
.00 0
.00 Ctrl1

-R Post

-LNB 2, LNB 3 0
.36 0.44 0
.32 0
.11 0
.04 0
.05 0
.31 0
.05 0
.08 Ctrl2

-R Post

-LNB2, SNCR 0.68 0.82 0.53 0
.16 0
.07 0.09 0
.56 0.08 0
.15 Ctrl3

-S Pre

-LNB2, SCR+H2SO4 1
.26 1
.30 0
.89 0
.29 0
.11 0
.14 0.98 0.11 0.25

0
.00 0
.20 0.40 0
.60 0.80 1
.00 1
.20 1
.40**V i** **s i** **b i** **l i** **t y** **B e** **n e** **f i** **t ,** **d v**  **Apache Visibility Benefit of Controls, IMPROVE Method 8** **, Ann. Avg. Background**

# 98**th**

# Percentile D-dv **Base Ctrl-1**  **Ctrl-2 Ctrl-3**  **Ctrl-4 Ctrl-5**  **Ctrl-6** chir 2.624 2.466 2.157 1.197 2.358 2.143 1.891 chrw 2.773 2.574 2.198 1.371 2.466 2.170 1.862 gali 1.444 1.351 1.121 0.674 1.287 1.105 1.007 gila 0.512 0.453 0.328 0.159 0.410 0.327 0.250 maza 0.238 0.215 0.180 0.117 0.201 0.180 0.159 moba 0.212 0.189 0.146 0.065 0.174 0.145 0.117 sagu 1.914 1.794 1.552 0.905 1.713 1.537 1.289 sian 0.230 0.203 0.165 0.098 0.185 0.165 0.138 supe 0.491 0.443 0.362 0.222 0.411 0.360 0.327

**Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6**  **Ctrl1-R** chir 0.174 0.208 0.304 0.172 0.179 0.217 0.220 chrw 0.219 0.256 0.298 0.199 0.225 0.269 0.252 gali 0.102 0.144 0.164 0.102 0.126 0.129 0.142 gila 0.065 0.082 0.075 0.066 0.069 0.077 0.086 maza 0.025 0.026 0.026 0.024 0.022 0.023 0.032 moba 0.025 0.029 0.031 0.025 0.025 0.028 0.032 sagu 0.132 0.161 0.215 0.130 0.141 0.185 0.168 sian 0.030 0.029 0.028 0.029 0.024 0.027 0.037 supe 0.053 0.057 0.057 0.052 0.049 0.048 0.066 *Uses the formula:
**Table 5(c). Control Option Cost Effectiveness (million $/dv)† for Each Class I Area Within AEPCO Apache's Zone of Influence (300 km) for 2001-2003** 



# Ctrl-1 **Ctrl-2 Ctrl-3**  **Ctrl-4 Ctrl-5**  **Ctrl-6 Ctrl1-R**  chir 8 9 9 12 14 11 7 chrw 6 8 9 10 11 9 6 gali 14 14 17 20 20 18 11 gila 22 24 37 31 36 30 18 maza 56 76 108 85 114 100 50 moba 56 67 89 83 99 83 50 sagu 11 12 13 16 18 13 9 sian 47 68 99 70 102 86 43 dv/1000 TPY≡ 1000 * dv change relative to base

TPY reduction relative to base

**2001** **Table 4(c). Control Option Visibility Benefits (dv/TPY)* for Each Class I Area Within AEPCO Apache's Zone of Influence (300 km) for 2001-2003** 

# CIA **Table 1(c). Visibility Impairment (98** **th**

# Percentile) at Each Class I Area (CIA) Within AEPCO Apache's Zone of Influence (300 km) for 2001-2003 Base Case Emissions and Control Options


# CIA

**2001 CIA** 

# supe 27 34 48 39 51 48 24

†

# million$/dv = $/year from Table 3 divided by change in dv from Table 1(c) for each control option, in millions.

# Ctrl1-R **Ctrl2-R Ctrl3-S**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5**

2.27 2.006 1.306 0.158 0.467 1.427 0.266 0.481 2.368 1.97 1.505 0.199 0.575 1.402 0.307 0.603 1.215 1.039 0.749 0.093 0.323 0.770 0.157 0.339 0.373 0.271 0.167 0.059 0.184 0.353 0.102 0.185 0.187 0.17 0.125 0.023 0.058 0.121 0.037 0.058 0.161 0.126 0.069 0.023 0.066 0.147 0.038 0.067 1.644 1.396 0.992 0.120 0.362 1.009 0.201 0.377 0.171 0.15 0.107 0.027 0.065 0.132 0.045 0.065 0.385 0.338 0.241 0.048 0.129 0.269 0.080 0.131

**Ctrl2-R Ctrl3-S**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6**  0.226 0.280 0.154 0.182 0.259 0.152 0.157 0.177 0.294 0.270 0.170 0.243 0.314 0.174 0.214 0.250 0.148 0.148 0.189 0.219 0.194 0.187 0.185 0.173 0.088 0.073 0.059 0.077 0.078 0.062 0.066 0.075 0.025 0.024 0.014 0.016 0.020 0.014 0.014 0.016 0.031 0.030 0.014 0.026 0.025 0.017 0.022 0.027 0.189 0.196 0.153 0.200 0.277 0.157 0.175 0.213 0.029 0.026 0.024 0.028 0.026 0.025 0.024 0.025 0.056 0.053 0.050 0.057 0.073 0.049 0.050 0.060

**Table 5(c). Control Option Cost Effectiveness (million $/dv)† for Each Class I Area Within AEPCO Apache's Zone of Influence (300 km) for 2001-2003**  

# Ctrl2-R **Ctrl3-S Ctrl-1**  **Ctrl-2 Ctrl-3**  **Ctrl-4 Ctrl-5**  **Ctrl-6** 10 10 9 11 11 13 16 13 7 10 8 8 9 12 12 9 15 19 7 9 14 11 13 13 25 38 24 26 36 33 37 31 88 115 99 119 139 150 179 149 69 91 99 76 110 116 110 86 12 14 9 10 10 13 14 11 75 106 58 70 105 81 104 94 **2002** **Table 4(c). Control Option Visibility Benefits (dv/TPY)* for Each Class I Area Within AEPCO Apache's Zone of Influence (300 km) for 2001-2003** **Percentile) at Each Class I Area (CIA) Within AEPCO Apache's Zone of Influence (300 km) for 2001-2003 Base Case Emissions and Control Options**(listed in Table 2) 

# Change relative to base (dv) **2001**

**2002**

# 39 52 28 34 38 42 50 39 $/dv = $/year from Table 3 divided by change in dv from Table 1(c) for each control option, in millions.

# Ctrl-6 **Ctrl1-R Ctrl2-R**  **Ctrl3-S Base**  **Ctrl-1 Ctrl-2**  **Ctrl-3**

0.733 0.354 0.618 1.318 2.641 2.501 2.233 1.425 0.911 0.405 0.803 1.268 2.744 2.590 2.199 1.270 0.437 0.229 0.405 0.695 1.688 1.516 1.197 0.775 0.262 0.139 0.241 0.345 0.571 0.517 0.399 0.206 0.079 0.051 0.068 0.113 0.213 0.200 0.176 0.119 0.095 0.051 0.086 0.143 0.212 0.199 0.154 0.094 0.625 0.270 0.518 0.922 2.312 2.173 1.863 1.008 0.092 0.059 0.080 0.123 0.247 0.225 0.184 0.123 0.164 0.106 0.153 0.250 0.551 0.506 0.422 0.208

**Ctrl1-R Ctrl2-R**  **Ctrl3-S Ctrl-1**  **Ctrl-2 Ctrl-3**  **Ctrl-4 Ctrl-5**  0.193 0.196 0.232 0.215 0.247 0.313 0.214 0.215 0.239 0.277 0.293 0.232 0.287 0.330 0.233 0.250 0.239 0.203 0.179 0.134 0.172 0.235 0.136 0.149 0.080 0.083 0.073 0.044 0.045 0.046 0.040 0.038 0.018 0.018 0.018 0.013 0.016 0.020 0.013 0.013 0.025 0.030 0.024 0.023 0.026 0.024 0.022 0.022 0.205 0.229 0.252 0.135 0.187 0.206 0.148 0.160 0.032 0.029 0.025 0.022 0.025 0.024 0.021 0.021 0.061 0.065 0.070 0.036 0.042 0.035 0.035 0.035

**Ctrl1-R Ctrl2-R**  **Ctrl3-S Ctrl-1**  **Ctrl-2 Ctrl-3**  **Ctrl-4 Ctrl-5**  8 11 12 7 8 9 9 12 7 8 9 6 7 8 9 10 7 11 15 10 11 12 15 17 20 26 38 32 43 60 51 64 88 122 153 107 126 140 157 189 64 74 115 61 76 115 92 114 8 10 11 10 11 13 14 15 49 77 112 64 77 115 95 116 **2003** (listed in Table 2) 

# Change relative to base (dv)

**2003**

# 26 34 40 39 47 79 58 71

# Ctrl-4 **Ctrl-5 Ctrl-6**  **Ctrl1-R Ctrl2-R**  **Ctrl3-S Ctrl-1**  **Ctrl-2**

2.406 2.221 2.043 2.33 2.106 1.551 0.140 0.408 2.476 2.169 1.899 2.359 1.988 1.367 0.154 0.545 1.399 1.191 1.103 1.303 1.134 0.845 0.172 0.491 0.476 0.394 0.317 0.442 0.344 0.227 0.054 0.172 0.192 0.176 0.160 0.184 0.164 0.128 0.013 0.037 0.185 0.152 0.120 0.172 0.131 0.099 0.013 0.058 2.070 1.842 1.590 1.983 1.686 1.125 0.139 0.449 0.208 0.183 0.163 0.195 0.169 0.131 0.022 0.063 0.476 0.418 0.349 0.453 0.374 0.224 0.045 0.129

**Ctrl-6 Ctrl1-R**  **Ctrl2-R Ctrl3-S**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  0.248 0.265 0.270 0.288 0.173 0.224 0.298 0.174 0.290 0.300 0.316 0.312 0.232 0.272 0.306 0.216 0.179 0.177 0.193 0.219 0.159 0.189 0.206 0.157 0.043 0.050 0.048 0.044 0.052 0.060 0.064 0.048 0.017 0.017 0.018 0.019 0.022 0.022 0.025 0.018 0.024 0.028 0.027 0.024 0.025 0.029 0.030 0.025 0.183 0.196 0.207 0.182 0.157 0.180 0.229 0.149 0.024 0.027 0.027 0.023 0.025 0.026 0.026 0.023 0.039 0.045 0.045 0.031 0.040 0.052 0.057 0.037

**Ctrl-6 Ctrl1-R**  **Ctrl2-R Ctrl3-S**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  9 6 8 10 8 9 9 12 8 5 7 9 6 7 9 9 13 9 11 13 9 10 13 13 55 32 46 63 27 33 43 42 139 94 122 146 64 88 112 112 96 57 81 117 56 67 91 83 13 8 11 15 9 11 12 14 96 58 81 122 56 76 109 90 **98 th** 

# Percentile D-dv **2002**

# 59 35 49 89 36 38 48 55

# Ctrl-3 **Ctrl-4 Ctrl-5**  **Ctrl-6 Ctrl1-R**  **Ctrl2-R Ctrl3-S**  **Base**

1.216 0.235 0.420 0.598 0.311 0.535 1.090 2.839 1.474 0.268 0.575 0.845 0.385 0.756 1.377 2.809 0.913 0.289 0.497 0.585 0.385 0.554 0.843 2.099 0.365 0.095 0.177 0.254 0.129 0.227 0.344 0.380 0.094 0.021 0.037 0.053 0.029 0.049 0.085 0.183 0.118 0.027 0.060 0.092 0.040 0.081 0.113 0.178 1.304 0.242 0.470 0.722 0.329 0.626 1.187 2.042 0.124 0.039 0.064 0.084 0.052 0.078 0.116 0.220 0.343 0.075 0.133 0.202 0.098 0.177 0.327 0.398

**Ctrl-5 Ctrl-6**  **Ctrl1-R Ctrl2-R**  **Ctrl3-S** 0.195 0.230 0.226 0.249 0.268 0.238 0.269 0.275 0.300 0.277 0.164 0.169 0.200 0.192 0.189 0.050 0.054 0.067 0.060 0.061 0.019 0.022 0.022 0.025 0.023 0.025 0.027 0.032 0.031 0.029 0.158 0.189 0.191 0.204 0.209 0.022 0.025 0.029 0.029 0.024 0.045 0.049 0.049 0.056 0.053

**Ctrl-5 Ctrl-6**  **Ctrl1-R Ctrl2-R**  **Ctrl3-S** 13 10 7 9 10 10 9 6 7 10 15 14 8 11 15 49 43 24 36 45 130 104 71 88 120 99 85 50 69 94 16 12 8 11 13 110 94 55 76 115 **All Years Change relative to base (dv)** 

**All Years**

# 55 48 32 39 52

# Ctrl-1 **Ctrl-2 Ctrl-3**  **Ctrl-4 Ctrl-5**  **Ctrl-6 Ctrl1-R**  **Ctrl2-R**

2.644 2.284 1.368 2.508 2.263 2.001 2.413 2.1 2.598 2.165 1.259 2.449 2.138 1.829 2.326 1.944 1.977 1.714 0.995 1.889 1.699 1.495 1.814 1.571 0.340 0.278 0.162 0.318 0.277 0.236 0.3 0.249 0.171 0.148 0.090 0.163 0.148 0.126 0.156 0.134 0.157 0.120 0.065 0.144 0.120 0.096 0.133 0.104 1.919 1.623 1.073 1.814 1.612 1.424 1.727 1.477 0.200 0.163 0.107 0.187 0.163 0.138 0.176 0.146 0.365 0.304 0.232 0.344 0.305 0.265 0.326 0.276 **98 th** 

# Percentile D-dv

# Ctrl3-S **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6**  **Ctrl1-R**

1.484 0.195 0.555 1.471 0.331 0.576 0.838 0.426 1.342 0.211 0.644 1.550 0.360 0.671 0.980 0.483 1.068 0.122 0.385 1.104 0.210 0.400 0.604 0.285 0.174 0.040 0.102 0.218 0.062 0.103 0.144 0.080 0.094 0.012 0.035 0.093 0.020 0.035 0.057 0.027 0.067 0.021 0.058 0.113 0.034 0.058 0.082 0.045 1.188 0.123 0.419 0.969 0.228 0.430 0.618 0.315 0.113 0.020 0.057 0.113 0.033 0.057 0.082 0.044 0.252 0.033 0.094 0.166 0.054 0.093 0.133 0.072 **2003 Change relative to base (dv)** 

# Ctrl2-R **Ctrl3-S Base**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5**

0.739 1.355 2.777 2.620 2.274 1.374 2.508 2.255 0.865 1.467 2.809 2.598 2.199 1.371 2.476 2.170 0.528 1.031 1.786 1.642 1.362 0.816 1.544 1.345 0.131 0.206 0.481 0.434 0.347 0.178 0.407 0.346 0.049 0.089 0.219 0.199 0.169 0.103 0.191 0.168 0.074 0.111 0.212 0.189 0.146 0.069 0.174 0.145 0.565 0.854 2.077 1.934 1.673 1.001 1.847 1.653 0.074 0.107 0.230 0.207 0.172 0.110 0.195 0.170 0.122 0.146 0.492 0.456 0.375 0.222 0.435 0.372 **98 th** 

# Percentile D-dv

# Ctrl-6 **Ctrl1-R Ctrl2-R**  **Ctrl3-S Ctrl-1**  **Ctrl-2 Ctrl-3**  **Ctrl-4**

1.999 2.413 2.095 1.516 0.157 0.503 1.403 0.269 1.899 2.367 1.988 1.505 0.211 0.610 1.438 0.333 1.215 1.465 1.26 0.896 0.144 0.424 0.970 0.242 0.297 0.373 0.317 0.193 0.047 0.134 0.303 0.074 0.143 0.183 0.151 0.11 0.020 0.050 0.116 0.028 0.119 0.161 0.126 0.074 0.023 0.066 0.143 0.038 1.439 1.77 1.518 1.096 0.143 0.404 1.076 0.230 0.146 0.184 0.151 0.117 0.023 0.058 0.120 0.035 0.327 0.413 0.338 0.241 0.036 0.117 0.270 0.057 **Change relative to base (dv) All Years** 

# Ctrl-5 **Ctrl-6 Ctrl1-R**  **Ctrl2-R Ctrl3-S** 

0.522 0.778 0.364 0.682 1.261 0.639 0.910 0.442 0.821 1.304 0.441 0.571 0.321 0.526 0.890 0.135 0.184 0.108 0.164 0.288 0.051 0.076 0.036 0.068 0.109 0.067 0.093 0.051 0.086 0.138 0.424 0.638 0.307 0.559 0.981 0.060 0.084 0.046 0.079 0.113 0.120 0.165 0.079 0.154 0.251 **Change relative to base (dv)**

## AEPCO Apache units 2 and 3

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

### Controls **Technology Used**  **-Emissions**

**(TPY, annual) Technology** 

**Used** **-Emissions**

**(TPY, annual)** **-Emissions**

**(TPY, annual) $/year**  Pre-LNB NOx u.2 **Base Case** OFA 0None (current) 0 0 $0 Pre-LNB 2; LNB 3 **Ctrl-1** OFA 0LNB 908 908 $1,280,825 SNCR u.3 **Ctrl-2** LNB 700LNB + SNCR 1544 2244 $4,411,902 Pre-LNB 2, SCR **Ctrl-3** LNB + SCR 2019LNB + SCR 2682 4701 $13,034,430 SNCR u.3 **Ctrl-4** OFA 0LNB + SNCR 1544 1544 $3,142,336 SCR u.3 **Ctrl-5** OFA 0LNB + SCR 2682 2682 $6,626,847 Pre-LNB 2, SCR 3 **Ctrl-6** LNB 700LNB + SCR 2682 3382 $7,896,413 Post-LNB 2, LNB 3 **Ctrl1-R** LNB 700LNB 908 1608 $2,550,391 Post-LNB 2, SNCR **Ctrl2-R** LNB+SNCR 1190LNB+SNCR 1544 2734 $5,971,695 Pre-LNB 2, SCR+H2SO4 **Ctrl3-S** LNB+SCR 2019LNB+SCR 2682 4701 $13,034,430 **Table 3. NOx Control Technologies for AEPCO Apache Units 2-3**(from Andover Technology Partners Report Table 4-4)
LNB LNB/SNCR LNB/SCR LNB LNB/SNCR LNB/SCR Capacity Factor 0.62 0.62 0.62 0.71 0.71 0.71 Control Efficiency 0.3 0.51 0.87 0.3 0.51 0.89 **Uncontrolled Rate** NOx Rate (lb/hr) 859 859 859 974 974 974 NOx Rate (lb/MMBtu) 0.37 0.37 0.37 0.44 0.44 0.44 NOx (TPY) 2333 2333 2333 3028 3028 3028 **Controlled Rate** NOx Rate (lb/hr) 601 421 116 682 477 111 NOx Rate (lb/MMBtu) 0.26 0.18 0.05 0.31 0.21 0.05 NOx (TPY) 1633 1143 314 2120 1484 346
**Tons/Year Removed** 700 1190 2019 908 1544 2683
**Total Cost, $/year** $1,269,566 $2,829,359 $6,407,583 $1,280,825 $3,142,336 $6,626,847 **$/Ton** $1,814 $2,378 $3,174 $1,410 $2,039 $2,477 **$/Ton (incremental)** $1,814 $3,184 $3,896 $1,410 $2,934 $3,022



## AEPCO Apache units 2 and 3 * 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**  **Unit 2 Unit 3** 

**Apache 2 - NOx Apache 3 - NOx** 



## AEPCO Apache units 2 and 3

visibility method 8, 20% best background Using dv from area with highest impact (9 CIAs)

Controls **Control Option**  

### ton/yr

**reduction cost, $/yr** 

**(millions) $/ton** 

**reduction visibility** 

**impact, dv visibility** 

**benefit, dv dv/TPY (x** 

**1000) $/dv** 

**(millions)** # CIAs w/

improvement≥ 0.5 dv **Pre-LNB NOx u.2 Base Case**  

### 0 $0.0 3.5 **Pre-LNB 2; LNB 3 Ctrl-1**  

### 908 $1.3 $1,411 3.2 0.25 0.279 $5.1 0 **SNCR u.3 Ctrl-2**  

### 2244 $4.4 $1,966 2.8 0.73 0.326 $6.0 3 **Pre-LNB 2, SCR Ctrl-3**  

### 4701 $13.0 $2,773 1.7 1.76 0.373 $7.4 4 **SNCR u.3 Ctrl-4**  

### 1544 $3.1 $2,035 3.1 0.41 0.264 $7.7 0 **SCR u.3 Ctrl-5**  

### 2682 $6.6 $2,471 2.8 0.77 0.285 $8.7 4 **Pre-LNB 2, SCR 3 Ctrl-6**  

### 3382 $7.9 $2,335 2.5 1.10 0.325 $7.2 4 **Post-LNB 2, LNB 3 Ctrl1-R**  

### 1608 $2.6 $1,586 3.0 0.53 0.331 $4.8 1 **Post-LNB 2, SNCR Ctrl2-R**  

### 2734 $6.0 $2,184 2.6 1.00 0.365 $6.0 4 **Pre-LNB 2, SCR+H2SO4 Ctrl3-S**  

### 4701 $13.0 $2,773 1.9 1.59 0.339 $8.2 4 (same tons & costs as above) Using dv sum over all areas (9 CIAs) Controls **Control Option**  

### ton/yr

**reduction cost, $/yr** 

**(millions) $/ton** 

**reduction visibility** 

**impact, dv visibility** 

**benefit, dv dv/TPY (x** 

**1000) $/dv** 

**(millions) Pre-LNB NOx u.2**  **Base Case** 

### 0 $0.0 13.7 **Pre-LNB 2; LNB 3 Ctrl-1**  

### 908 $1.3 $1,411 12.7 0.98 1.081 $1.3 **SNCR u.3 Ctrl-2**  

### 2244 $4.4 $1,966 10.8 2.88 1.281 $1.5 **Pre-LNB 2, SCR Ctrl-3**  

### 4701 $13.0 $2,773 6.5 7.13 1.516 $1.8 **SNCR u.3 Ctrl-4**  

### 1544 $3.1 $2,035 12.1 1.61 1.040 $2.0 **SCR u.3 Ctrl-5**  

### 2682 $6.6 $2,471 10.7 2.98 1.112 $2.2 **Pre-LNB 2, SCR 3 Ctrl-6**  

### 3382 $7.9 $2,335 9.4 4.26 1.260 $1.9 **Post-LNB 2, LNB 3 Ctrl1-R**  

### 1608 $2.6 $1,586 11.5 2.14 1.333 $1.2 **Post-LNB 2, SNCR Ctrl2-R**  

### 2734 $6.0 $2,184 9.8 3.83 1.401 $1.6 **Pre-LNB 2, SCR+H2SO4 Ctrl3-S**  

### 4701 $13.0 $2,773 7.2 6.51 1.385 $2.0AEPCO Apache units 2 and 3 visibility method 8, 20% best background (this page edited from vis8.20best sheet) **Table 1(d). Visibility Impairment (98** **th Percentile) for 2001-2003 Base Case Emissions and Control Options** 

Base Case Ctrl-1 Ctrl-2 Ctrl-3 Ctrl-4 Ctrl-5 Ctrl-6 Ctrl1-R Ctrl2-R Ctrl3-S Base Case Ctrl-1 Ctrl-2 Ctrl-3 Ctrl-4 Ctrl-5 Ctrl-6 Ctrl1-R Ctrl2-R Ctrl3-S CIA **Class I Area** Pre-LNB NOx u.2 Pre-LNB 2;

LNB 3 SNCR u.3 Pre-LNB 2, SCR SNCR u.3 SCR u.3 Pre-LNB 2, SCR 3 Post-LNB 2,

LNB 3 Post-LNB 2,

SNCR Pre-LNB 2,

SCR+H2SO4 Pre-LNB

NOx u.2 Pre-LNB

2; LNB 3 SNCR u.3 Pre-LNB 2, SCR SNCR u.3 SCR u.3 Pre-LNB 2, SCR 3 Post-LNB 2,

LNB 3 Post-LNB 2,

SNCR Pre-LNB 2,

SCR+H2SO4 chir Chiricahua NM 3.41 3.22 2.81 1.72 3.09 2.78 2.47 2.97 2.59 1.90 0.00 0.19 0.60 1.69 0.32 0.63 0.94 0.44 0.82 1.51 chrw Chiricahua **3.46** 3.21 2.73 1.71 3.06 2.70 2.36 2.93 2.47 1.87 0.00 0.25 0.73 1.76 0.41 0.77 1.10 **0.53 1.00**  **1.59** gali Galiuro 2.22 2.04 1.70 1.03 1.92 1.68 1.51 1.83 1.57 1.12 0.00 0.18 0.52 1.19 0.30 0.54 0.71 0.39 0.65 1.10 gila Gila 0.63 0.57 0.46 0.23 0.53 0.46 0.39 0.49 0.41 0.26 0.00 0.06 0.17 0.40 0.10 0.17 0.24 0.14 0.22 0.37 mazaMazatzal 0.28 0.25 0.21 0.13 0.24 0.21 0.18 0.23 0.19 0.14 0.00 0.03 0.06 0.15 0.04 0.07 0.10 0.05 0.09 0.14 mobaMount Baldy 0.28 0.25 0.20 0.09 0.23 0.20 0.16 0.22 0.17 0.10 0.00 0.03 0.09 0.19 0.05 0.09 0.12 0.07 0.11 0.18 sagu Saguaro 2.49 2.32 2.01 1.22 2.21 1.99 1.74 2.12 1.84 1.33 0.00 0.18 0.48 1.28 0.28 0.50 0.75 0.38 0.66 1.16 sian Sierra Ancha 0.29 0.26 0.21 0.14 0.24 0.21 0.18 0.23 0.19 0.15 0.00 0.03 0.07 0.15 0.05 0.08 0.11 0.06 0.10 0.14 supe Superstition 0.61 0.57 0.47 0.28 0.54 0.46 0.41 0.51 0.42 0.30 0.00 0.05 0.15 0.34 0.07 0.15 0.21 0.10 0.19 0.31

**Total** 13.67 12.69 10.80 6.55 12.07 10.69 9.41 11.53 9.84 7.16 0.98 2.88 7.13 1.61 2.98 4.26 2.14 3.83 6.51 **Max** 3.46 3.22 2.81 1.72 3.09 2.78 2.47 2.97 2.59 1.90 0.25 0.73 1.76 0.41 0.77 1.10 0.53 1.00 1.59 **# CIAs w/****-dv ≥ 0.5**  6 6 4 4 6 4 4 5 4 4 0 3 4 0 4 4 1 4 4
**Table 4(d). Control Option Visibility Benefits (dv/thousand TPY)*** Ctrl-1 Ctrl-2 Ctrl-3 Ctrl-4 Ctrl-5 Ctrl-6 Ctrl1-R Ctrl2-R Ctrl3-S CIA Pre-LNB 2; LNB 3 SNCR u.3 Pre-LNB 2, SCR SNCR u.3 SCR u.3 Pre-LNB 2, SCR 3 Post-LNB 2,

LNB 3 Post-LNB 2,

SNCR Pre-LNB 2,

SCR+H2SO4 chir Chiricahua NM 0.206 0.268 0.359 0.209 0.233 0.276 0.271 0.299 0.321 chrw Chiricahua 0.279 0.326 0.373 0.264 0.285 0.325 0.331 0.365 0.339 gali Galiuro 0.194 0.231 0.253 0.192 0.202 0.209 0.244 0.238 0.234 gila Gila 0.067 0.077 0.084 0.063 0.065 0.070 0.085 0.079 0.080 mazaMazatzal 0.028 0.028 0.031 0.024 0.024 0.029 0.030 0.032 0.030 mobaMount Baldy 0.031 0.038 0.040 0.031 0.032 0.036 0.040 0.041 0.039 sagu Saguaro 0.193 0.215 0.271 0.182 0.186 0.222 0.234 0.240 0.247 sian Sierra Ancha 0.033 0.033 0.032 0.029 0.028 0.032 0.036 0.036 0.030 supe Superstition 0.052 0.065 0.072 0.047 0.056 0.061 0.062 0.071 0.066

**Average** 0.120 0.142 0.168 0.116 0.124 0.140 0.148 0.156 0.154 average of all area's (dv/annual TPY) **dv_sum/TPY** 1.081 1.281 1.516 1.040 1.112 1.260 1.333 1.401 1.385 (sum of dv benefits over all areas) / (annual TPY) **dv_max/TPY** 0.279 0.326 0.373 0.264 0.285 0.325 0.331 0.365 0.339 (max dv benefit of any area) / (annual TPY)

**Table 5(d). Control Option Cost Effectiveness (million $/dv)†** Ctrl-1 Ctrl-2 Ctrl-3 Ctrl-4 Ctrl-5 Ctrl-6 Ctrl1-R Ctrl2-R Ctrl3-S CIA Pre-LNB 2; LNB 3 SNCR u.3 Pre-LNB 2, SCR SNCR u.3 SCR u.3 Pre-LNB 2, SCR 3 Post-LNB 2,

LNB 3 Post-LNB 2,

SNCR Pre-LNB 2,

SCR+H2SO4 chir Chiricahua NM 7 7 8 10 11 8 6 7 9 chrw Chiricahua 5 6 7 8 9 7 5 6 8 gali Galiuro 7 9 11 11 12 11 6 9 12 gila Gila 21 26 33 32 38 33 19 28 35 mazaMazatzal 51 70 89 85 102 81 53 69 93 mobaMount Baldy 46 52 69 65 76 65 39 53 72 sagu Saguaro 7 9 10 11 13 11 7 9 11 sian Sierra Ancha 43 60 87 70 87 74 44 60 93 supe Superstition 27 30 39 44 44 38 26 31 42

**$/dv_sum** 1.3 1.5 1.8 2.0 2.2 1.9 1.2 1.6 2.0 ($/yr) / (sum of dv benefits over all areas) **$/dv_max** 5.1 6.0 7.4 7.7 8.7 7.2 4.8 6.0 8.2 ($/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 Number of Class I Areas with visibility improvement≥0.5 dv **Change relative to Base (dv)**

*Uses the formula: dv/thousand TPY = 1000 * (dv change relative to base/ TPY reduction relative to base Number of Class I Areas with visibility impact≥0.5 dv

**98 th** **Percentile****-dv**

**Class I Area Class I Area** 

Chiricahua NM Chiricahua Galiuro Gila Mazatzal Mount Baldy Saguaro Sierra Ancha Superstition Base Case Pre

-LNB NOx u.2 3
.41 3
.46 2.22 0
.63 0.28 0
.28 2
.49 0.29 0
.61 Ctrl1

-R Post

-LNB 2, LNB 3 2
.97 2
.93 1
.83 0
.49 0.23 0
.22 2
.12 0
.23 0.51 Ctrl2

-R Post

-LNB2, SNCR 2.59 2
.47 1
.57 0.41 0
.19 0.17 1
.84 0
.19 0
.42 Ctrl3

-S Pre

-LNB2, SCR+H2SO4 1.90 1
.87 1
.12 0
.26 0.14 0
.10 1.33 0
.15 0
.30

0.00 0
.50 1.00 1
.50 2
.00 2
.50 3
.00 3.50 4
.00**V i** **s i** **b i** **l i** **t y** **I m** **p a** **i r** **m e** **n t** **(****- d** **v )**  **Apache: 98** **th Percentile Visibility Impairment,**

**IMPROVE Method 8 20** **% Best Background**

Chiricahua NM Chiricahua Galiuro Gila Mazatzal Mount Baldy Saguaro Sierra Ancha Superstition Base Case Pre

-LNB NOx u.2 0.00 0
.00 0
.00 0
.00 0
.00 0.00 0
.00 0
.00 0.00 Ctrl1

-R Post

-LNB 2, LNB 3 0
.44 0.53 0
.39 0
.14 0
.05 0
.07 0.38 0
.06 0
.10 Ctrl2

-R Post

-LNB2, SNCR 0
.82 1.00 0
.65 0
.22 0.09 0.11 0
.66 0.10 0
.19 Ctrl3

-S Pre

-LNB2, SCR+H2SO4 1
.51 1
.59 1.10 0
.37 0
.14 0
.18 1
.16 0.14 0
.31

0
.00 0.20 0.40 0
.60 0.80 1
.00 1
.20 1
.40 1
.60 1.80**V i** **s i** **b i** **l i** **t y** **B e** **n e** **f i** **t ,** **d v**  **Apache: Visibility Benefit of Controls, IMPROVE Method 8 20** **% Best Background**

# Base **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6** 

chir 3.210 3.021 2.650 1.494 2.891 2.633 2.344 chrw 3.404 3.166 2.733 1.709 3.036 2.699 2.308 gali 1.805 1.691 1.406 0.847 1.611 1.386 1.251 gila 0.673 0.600 0.435 0.207 0.542 0.433 0.328 maza 0.299 0.270 0.226 0.149 0.252 0.226 0.202 moba 0.285 0.254 0.197 0.087 0.234 0.195 0.157 sagu 2.299 2.165 1.877 1.101 2.068 1.859 1.562 sian 0.287 0.254 0.204 0.122 0.231 0.204 0.173 supe 0.609 0.550 0.447 0.275 0.510 0.445 0.405

**2001 Ctrl-1**  **Ctrl-2 Ctrl-3**  **Ctrl-4 Ctrl-5**  **Ctrl-6 Ctrl1-R**  chir 0.208 0.250 0.365 0.207 0.215 0.256 0.264 chrw 0.262 0.299 0.361 0.238 0.263 0.324 0.294 gali 0.126 0.178 0.204 0.126 0.156 0.164 0.176 gila 0.080 0.106 0.099 0.085 0.089 0.102 0.112 maza 0.032 0.033 0.032 0.030 0.027 0.029 0.039 moba 0.034 0.039 0.042 0.033 0.034 0.038 0.042 sagu 0.148 0.188 0.255 0.150 0.164 0.218 0.194 sian 0.036 0.037 0.035 0.036 0.031 0.034 0.046 supe 0.065 0.072 0.071 0.064 0.061 0.060 0.081 *Uses the formula:

**Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6**  **Ctrl1-R** chir 7 8 8 10 11 9 6 chrw 5 7 8 9 9 7 5 gali 11 11 14 16 16 14 9 gila 18 19 28 24 28 23 14 maza 44 60 87 67 91 81 40 moba 41 50 66 62 74 62 38 sagu 10 10 11 14 15 11 8 sian 39 53 79 56 80 69 34 **Table 5(d). Control Option Cost Effectiveness ($/dv)† for Each Class I Area Within AEPCO Apache's Zone of Influence (300 km) for 2001-2003**  

# CIA dv/1000 TPY≡

**2001 Table 1(d).** **Visibility Impairment (98 th** 

# Percentile) at Each Class I Area (CIA) Within APS Cholla's Zone of Influence (300 km) for 2001-2003 Base Case Emissions and Control Options


# CIA

**CIA**

1000 * dv change relative to base TPY reduction relative to base **Table 4(d). Control Option Visibility Benefits (dv/1000 TPY)* for Each Class I Area Within AEPCO Apache's Zone of Influence (300 km) for 2001-2003** 

# 98**th**

# Percentile D-dv

# supe 22 27 39 32 40 39 19

†million

# $/dv = $/Ton (per year) from Table 3 divided by dv/TPY from Table 4(b) for each control option.

# Ctrl1-R **Ctrl2-R Ctrl3-S**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5**

2.785 2.468 1.628 0.189 0.560 1.716 0.319 0.577 2.932 2.441 1.871 0.238 0.671 1.695 0.368 0.705 1.522 1.29 0.94 0.114 0.399 0.958 0.194 0.419 0.493 0.358 0.218 0.073 0.238 0.466 0.131 0.240 0.236 0.215 0.158 0.029 0.073 0.150 0.047 0.073 0.217 0.17 0.092 0.031 0.088 0.198 0.051 0.090 1.987 1.69 1.205 0.134 0.422 1.198 0.231 0.440 0.213 0.187 0.133 0.033 0.083 0.165 0.056 0.083 0.478 0.419 0.3 0.059 0.162 0.334 0.099 0.164

**Ctrl2-R Ctrl3-S**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6**  0.271 0.337 0.187 0.220 0.315 0.184 0.190 0.214 0.352 0.326 0.208 0.300 0.381 0.214 0.264 0.302 0.188 0.184 0.232 0.274 0.242 0.231 0.232 0.216 0.115 0.097 0.085 0.102 0.103 0.085 0.088 0.100 0.031 0.030 0.018 0.021 0.025 0.017 0.018 0.020 0.042 0.041 0.020 0.033 0.033 0.023 0.029 0.036 0.223 0.233 0.180 0.236 0.328 0.184 0.206 0.252 0.037 0.033 0.025 0.033 0.032 0.028 0.028 0.030 0.069 0.066 0.061 0.071 0.090 0.060 0.062 0.074

**Ctrl2-R Ctrl3-S**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6**  8 8 8 9 9 11 13 11 6 9 7 7 7 10 9 8 12 15 6 7 11 9 11 11 19 29 17 19 27 24 28 23 71 92 80 94 111 116 141 118 52 68 71 60 84 90 86 65 10 12 8 8 8 11 12 9 60 85 56 59 86 71 87 77 **Table 5(d). Control Option Cost Effectiveness ($/dv)† for Each Class I Area Within AEPCO Apache's Zone of Influence (300 km) for 2001-2003**  

# 2002 **Percentile) at Each Class I Area (CIA) Within APS Cholla's Zone of Influence (300 km) for 2001-2003 Base Case Emissions and Control Options**(listed in Table 2) 

# 2001

**2002 Change relative to base (dv)** 

**Table 4(d). Control Option Visibility Benefits (dv/1000 TPY)* for Each Class I Area Within AEPCO Apache's Zone of Influence (300 km) for 2001-2003**

# 31 42 23 28 31 34 40 32 $/dv = $/Ton (per year) from Table 3 divided by dv/TPY from Table 4(b) for each control option.

# Ctrl-6 **Ctrl1-R Ctrl2-R**  **Ctrl3-S Base**  **Ctrl-1 Ctrl-2**  **Ctrl-3**

0.866 0.425 0.742 1.582 3.270 3.100 2.776 1.789 1.096 0.472 0.963 1.533 3.387 3.198 2.714 1.597 0.554 0.283 0.515 0.865 2.113 1.902 1.499 0.974 0.345 0.180 0.315 0.455 0.753 0.676 0.523 0.270 0.097 0.063 0.084 0.141 0.268 0.252 0.221 0.151 0.128 0.068 0.115 0.193 0.282 0.264 0.208 0.126 0.737 0.312 0.609 1.094 2.767 2.604 2.238 1.225 0.114 0.074 0.100 0.154 0.304 0.281 0.229 0.153 0.204 0.131 0.190 0.309 0.684 0.629 0.525 0.259

**Ctrl1-R Ctrl2-R**  **Ctrl3-S Ctrl-1**  **Ctrl-2 Ctrl-3**  **Ctrl-4 Ctrl-5**  0.234 0.237 0.282 0.252 0.305 0.383 0.269 0.265 0.299 0.337 0.355 0.279 0.346 0.403 0.280 0.301 0.295 0.253 0.224 0.164 0.210 0.290 0.166 0.183 0.109 0.111 0.097 0.058 0.060 0.061 0.053 0.051 0.022 0.022 0.023 0.017 0.020 0.025 0.016 0.017 0.032 0.038 0.032 0.030 0.034 0.033 0.029 0.029 0.241 0.271 0.298 0.153 0.217 0.244 0.164 0.189 0.038 0.034 0.030 0.028 0.032 0.030 0.027 0.027 0.075 0.080 0.086 0.044 0.051 0.044 0.043 0.043

**Ctrl1-R Ctrl2-R**  **Ctrl3-S Ctrl-1**  **Ctrl-2 Ctrl-3**  **Ctrl-4 Ctrl-5**  7 9 10 6 6 7 8 9 5 6 8 5 6 7 7 8 5 9 12 9 9 10 12 14 15 20 29 24 33 45 38 49 71 98 123 85 100 110 126 147 49 57 87 47 57 85 70 85 7 8 9 9 9 11 12 13 42 64 92 51 62 91 77 92 **2003** (listed in Table 2)



# 2003 **Change relative to base (dv)**

# 21 27 32 32 38 63 48 58

# Ctrl-4 **Ctrl-5 Ctrl-6**  **Ctrl1-R Ctrl2-R**  **Ctrl3-S Ctrl-1**  **Ctrl-2**

2.986 2.761 2.547 2.893 2.622 1.944 0.170 0.494 3.057 2.678 2.364 2.907 2.466 1.716 0.189 0.673 1.757 1.492 1.384 1.639 1.421 1.06 0.211 0.614 0.622 0.516 0.415 0.578 0.45 0.298 0.077 0.230 0.241 0.221 0.201 0.232 0.207 0.162 0.016 0.047 0.247 0.205 0.161 0.23 0.177 0.132 0.018 0.074 2.483 2.214 1.915 2.38 2.025 1.366 0.163 0.529 0.260 0.228 0.202 0.243 0.211 0.163 0.023 0.075 0.592 0.519 0.434 0.563 0.466 0.279 0.055 0.159

**Ctrl-6 Ctrl1-R**  **Ctrl2-R Ctrl3-S**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  0.304 0.330 0.332 0.352 0.206 0.268 0.359 0.209 0.350 0.361 0.382 0.381 0.279 0.326 0.373 0.264 0.219 0.216 0.236 0.271 0.194 0.231 0.253 0.192 0.056 0.065 0.063 0.057 0.067 0.077 0.084 0.063 0.021 0.021 0.022 0.024 0.028 0.028 0.031 0.024 0.032 0.037 0.036 0.032 0.031 0.038 0.040 0.031 0.216 0.221 0.244 0.213 0.193 0.215 0.271 0.182 0.030 0.034 0.034 0.029 0.033 0.033 0.032 0.029 0.048 0.055 0.055 0.039 0.052 0.065 0.072 0.047

**Ctrl-6 Ctrl1-R**  **Ctrl2-R Ctrl3-S**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  8 5 7 8 7 7 8 10 7 4 6 7 5 6 7 8 11 7 9 10 7 9 11 11 42 24 35 48 21 26 33 32 111 75 98 117 51 70 89 85 72 43 60 87 46 52 69 65 11 7 9 13 7 9 10 11 77 46 65 97 43 60 87 70 **2002 98** **th**

# Percentile D-dv

# 48 29 40 71 27 30 39 44

# Ctrl-3 **Ctrl-4 Ctrl-5**  **Ctrl-6 Ctrl1-R**  **Ctrl2-R Ctrl3-S**  **Base**

1.481 0.284 0.509 0.723 0.377 0.648 1.326 3.503 1.790 0.330 0.709 1.023 0.480 0.921 1.671 3.464 1.139 0.356 0.621 0.729 0.474 0.692 1.053 2.615 0.483 0.131 0.237 0.338 0.175 0.303 0.455 0.500 0.117 0.027 0.047 0.067 0.036 0.061 0.106 0.231 0.156 0.035 0.077 0.121 0.052 0.105 0.150 0.239 1.542 0.284 0.553 0.852 0.387 0.742 1.401 2.441 0.151 0.044 0.076 0.102 0.061 0.093 0.141 0.275 0.425 0.092 0.165 0.250 0.121 0.218 0.405 0.494

**Ctrl-5 Ctrl-6**  **Ctrl1-R Ctrl2-R**  **Ctrl3-S** 0.233 0.276 0.271 0.299 0.321 0.285 0.325 0.331 0.365 0.339 0.202 0.209 0.244 0.238 0.234 0.065 0.070 0.085 0.079 0.080 0.024 0.029 0.030 0.032 0.030 0.032 0.036 0.040 0.041 0.039 0.186 0.222 0.234 0.240 0.247 0.028 0.032 0.036 0.036 0.030 0.056 0.061 0.062 0.071 0.066

**Ctrl-5 Ctrl-6**  **Ctrl1-R Ctrl2-R**  **Ctrl3-S** 11 8 6 7 9 9 7 5 6 8 12 11 6 9 12 38 33 19 28 35 102 81 53 69 93 76 65 39 53 72 13 11 7 9 11 87 74 44 60 93 **All Years All Years**  **Change relative to base (dv)**

# 44 38 26 31 42

# Ctrl-1 **Ctrl-2 Ctrl-3**  **Ctrl-4 Ctrl-5**  **Ctrl-6 Ctrl1-R**  **Ctrl2-R**

3.274 2.818 1.704 3.087 2.792 2.476 2.973 2.596 3.211 2.688 1.569 3.031 2.656 2.280 2.883 2.419 2.466 2.144 1.253 2.358 2.125 1.875 2.267 1.969 0.447 0.366 0.213 0.418 0.364 0.311 0.395 0.328 0.216 0.187 0.113 0.206 0.186 0.160 0.197 0.17 0.212 0.162 0.085 0.194 0.161 0.130 0.179 0.14 2.302 1.953 1.294 2.188 1.935 1.709 2.085 1.774 0.250 0.204 0.132 0.234 0.203 0.173 0.22 0.183 0.454 0.379 0.286 0.428 0.379 0.330 0.405 0.344 **98 th** 

# Percentile D-dv

# Ctrl3-S **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6**  **Ctrl1-R**

1.846 0.229 0.685 1.799 0.416 0.711 1.027 0.530 1.671 0.253 0.776 1.895 0.433 0.808 1.184 0.581 1.343 0.149 0.471 1.362 0.257 0.490 0.740 0.348 0.231 0.053 0.134 0.287 0.082 0.136 0.189 0.105 0.12 0.015 0.044 0.118 0.025 0.045 0.071 0.034 0.089 0.027 0.077 0.154 0.045 0.078 0.109 0.060 1.441 0.139 0.488 1.147 0.253 0.506 0.732 0.356 0.14 0.025 0.071 0.143 0.041 0.072 0.102 0.055 0.311 0.040 0.115 0.208 0.066 0.115 0.164 0.089 **Change relative to base (dv) 2003** 

# Ctrl2-R **Ctrl3-S Base**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5**

0.907 1.657 3.409 3.222 2.807 1.722 3.087 2.784 1.045 1.793 3.464 3.211 2.733 1.709 3.057 2.699 0.646 1.272 2.219 2.043 1.700 1.029 1.923 1.678 0.172 0.269 0.629 0.568 0.456 0.234 0.532 0.455 0.061 0.111 0.277 0.252 0.214 0.130 0.240 0.212 0.099 0.150 0.282 0.254 0.197 0.092 0.234 0.195 0.667 1.000 2.493 2.318 2.010 1.217 2.212 1.993 0.092 0.135 0.287 0.257 0.214 0.137 0.242 0.211 0.150 0.183 0.612 0.565 0.466 0.275 0.540 0.462 **98 th** 

# Percentile D-dv

# Ctrl-6 **Ctrl1-R Ctrl2-R**  **Ctrl3-S Ctrl-1**  **Ctrl-2 Ctrl-3**  **Ctrl-4**

2.474 2.973 2.591 1.898 0.187 0.602 1.687 0.322 2.364 2.932 2.466 1.871 0.253 0.731 1.755 0.407 1.513 1.826 1.569 1.12 0.176 0.519 1.190 0.296 0.392 0.493 0.413 0.255 0.061 0.173 0.395 0.097 0.180 0.229 0.19 0.137 0.025 0.063 0.147 0.037 0.160 0.217 0.17 0.1 0.028 0.085 0.190 0.048 1.742 2.117 1.836 1.331 0.175 0.483 1.276 0.281 0.180 0.229 0.188 0.147 0.030 0.073 0.150 0.045 0.405 0.512 0.419 0.3 0.047 0.146 0.337 0.072 **All Years Change relative to base (dv)** 

# Ctrl-5 **Ctrl-6 Ctrl1-R**  **Ctrl2-R Ctrl3-S** 

0.625 0.935 0.436 0.818 1.511 0.765 1.100 0.532 0.998 1.593 0.541 0.706 0.393 0.650 1.099 0.174 0.237 0.136 0.216 0.374 0.065 0.097 0.048 0.087 0.140 0.087 0.122 0.065 0.112 0.182 0.500 0.751 0.376 0.657 1.162 0.076 0.107 0.058 0.099 0.140 0.150 0.207 0.100 0.193 0.312 **Change relative to base (dv)**

### lookup tables includes areas for: TEP Sundt, Catalyst Paper/Snowflake, Chemical Lime Nelson, AEPCO Apache, APS Cholla, SRP Coronado

Apache Control scenarios Class I areas scenarios unit 2 unit 3 short abbr Class I area Class I area, medium Class I area, long state Base Case OFA OFA Pre-LNB NOx u.2 band Bandelier Bandelier NM Bandelier NM NM Ctrl-1 OFA LNB Pre-LNB 2; LNB 3 brca Bryce Canyon Bryce Canyon NP Bryce Canyon NP UT Ctrl-2 LNB LNB + SNCR SNCR u.3 care Capitol Reef Capitol Reef NP Capitol Reef NP UT Ctrl-3 LNB + SCR LNB + SCR Pre-LNB 2, SCR chir Chiricahua NM Chiricahua NM Chiricahua NM AZ Ctrl-4 OFA LNB + SNCR SNCR u.3 chrw Chiricahua Chiricahua Wild. Chiricahua Wilderness AZ Ctrl-5 OFA LNB + SCR SCR u.3 gali Galiuro Galiuro Wild. Galiuro Wilderness AZ Ctrl-6 LNB LNB + SCR Pre-LNB 2, SCR 3 gila Gila Gila Wild. Gila Wilderness NM Ctrl1-R LNB LNB Post-LNB 2, LNB 3 grca Grand Canyon Grand Canyon NP Grand Canyon NP AZ Ctrl2-R LNB/SNCR LNB/SNCR Post-LNB 2, SNCR jotr Joshua Tree Joshua Tree NP Joshua Tree NP CA Ctrl3-S LNB/SCR; H2SO4 LNB/SCR; H2SO4 Pre-LNB 2, SCR+H2

### SO4 

### maza Mazatzal Mazatzal Wild. Mazatzal Wilderness AZ meve Mesa Verde Mesa Verde NP Mesa Verde NP CO moba Mount Baldy Mount Baldy Wild. Mount Baldy Wilderness AZ pefo Petrified Forest Petrified Forest NP Petrified Forest NP AZ pimo Pine Mountain Pine Mountain Wild. Pine Mountain Wilderness AZ sagu Saguaro Saguaro NP Saguaro NP AZ sape San Pedro Parks San Pedro Parks Wild. San Pedro Parks Wilderness NM sian Sierra Ancha Sierra Ancha Wild. Sierra Ancha Wilderness AZ supe Superstition Superstition Wild. Superstition Wilderness AZ syca Sycamore Canyon Sycamore Canyon Wild. Sycamore Canyon Wilderness AZ zion Zion Zion NP Zion NP UT