# Chemical Lime Company Nelson Units 1 - 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**  

### Baghouse **Base Case** 0 0 0 $0 DLI **Ctrl-1** DLS 232DLS 739 971$2,048,348 DSI w/ SBC **Ctrl-2** SBC Inj. 348SBC inj. 1109 1457$1,430,417 Wet FGD **Ctrl-3** Wet FGD 441Wet FGD 1404 1845$3,327,788 Wet FGD u.3 **Ctrl-4** 0Wet FGD 1404 1404$1,958,408 Wet FGD u.2 **Ctrl-5** Wet FGD 441 0 441$1,369,380 MAT **Ctrl-6** MAT 139MAT 443 582$359,830 SNCR **Ctrl-7** SNCR 187SNCR 195 382$451,644 LNB + SNCR **Ctrl-8** LNB+SNCR 191LNB+SNCR 199 390$1,276,193

**Table 3a. NO x** 

### Control Technologies for CLC Nelson Units 2-3(from Andover Technology Partners Report Table 3-9a and 3-9b)

LNB SNCR LNB and SNCR LNB SNCR LNB and SNCR **TPD Lime** 859 859 859 1,145 1,145 1,145
**Uncontrolled NOx, lb/ton** 2.66 2.66 2.66 2.08 2.08 2.08 **PPH NOx** 95 95 95 99 99 99 **TPY NOx (90% capacity factor)** 375 375 375 391 391 391

**Reduction** 30% 50% 51% 30% 50% 51% **Controlled NOx, lb/ton** 1.86 1.33 1.3 1.46 1.04 1.02 **PPH NOx** 67 48 47 69 50 49 **TPY NOx (90% capacity factor)** 263 188 184 274 196 192

**Capital Cost** $2,389,443 $679,055 $3,068,499 $2,857,256 $806,849 $3,664,105 **Total Annualized Cost** $396,129 $216,179 $597,335 $459,000 $235,465 $678,858 **$/ton removed** $3,518 $1,152 $3,121 $3,911 $1,204 $3,403 **incremental, $/ton removed** $3,518 -$2,397* $2,553* $3,911 -$2,857* $2,676*



### Table 3b. SO**2**

### Control Technologies for CLC Nelson Plant Units 2-3(from Andover Technology Partners Report Table 3-11)

**MAT Dry Lime**  **DSI with SBC Wet FGD**  **MAT Dry Lime**  **DSI with SBC Wet FGD**  Historical SO2, lb/ton 3.29 3.29 3.29 3.29 7.87 7.87 7.87 7.87 Historical SO2, pph 118 118 118 118 375 375 375 375 Percent Removal 30% 50% 75% 95% 30% 50% 75% 95% Outlet SO2, pph 82.4 58.9 29.4 5.9 262.5 187.5 93.8 18.8 Outlet SO2, lb/ton 2.3 1.65 0.82 0.16 5.51 3.94 1.97 0.39 % change in stack Velocity No Change No Change No Change -20% No Change No Change No Change -20% Exit temp No Change No Change No Change 130 F No Change No Change No Change 130 F Yes FF plus scrubber Capital Cost $754,196 $770,000 $409,382 8,082,077 $807,040 $1,940,000 $1,034,122 10,772,967 Annualized Costs $176,364 $545,415 $389,957 $1,369,380 $183,466 $1,502,933 $1,040,460 $1,958,408

TPY removed (90% capacity factor) 139 232 348 441 443 739 1109 1404
$/ton removed $1,266 $2,350 $1,120 $3,105 $414 $2,033 $938 $1,395 Incremental $/ton $1,266 $3,975 ($1,340) $10,550 $414 $4,463 ($1,251) $3,105 

# Nelson Lime Units 2 and 3

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

Controls **Control Option**  

## ton/yr

**reduction cost, $/yr** 

**(millions) $/ton** 

**reduction visibility** 

**impact, dv visibility** 

**benefit, dv $/dv** 

**(millions)**# CIAs w/

improvement ≥0.5 dv **Baghouse Base Case**  

## 0 $0.0 1.2 **DLI Ctrl-1**  

## 971 $2.0 $2,110 1.1 0.11 $18.5 0 **DSI w/ SBC Ctrl-2**  

## 1457 $1.4 $982 1.0 0.17 $8.7 0 **Wet FGD Ctrl-3**  

## 1845 $3.3 $1,804 1.1 0.10 $33.3 0 **Wet FGD u.3 Ctrl-4**  

## 1404 $2.0 $1,395 1.1 0.07 $27.2 0 **Wet FGD u.2 Ctrl-5**  

## 441 $1.4 $3,105 1.2 0.04 $38.0 0 **MAT Ctrl-6**  

## 582 $0.4 $618 1.1 0.14 $2.6 0 **SNCR Ctrl-7**  

## 382 $0.5 $1,182 1.0 0.23 $2.0 0 **LNB + SNCR Ctrl-8**  

## 390 $1.3 $3,272 1.0 0.23 $5.5 0 (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** 

**(millions) Baghouse**  **Base Case** 

## 0 $0.0 2.2 **DLI Ctrl-1**  

## 971 $2.0 $2,110 1.8 0.39 $5.3 **DSI w/ SBC Ctrl-2**  

## 1457 $1.4 $982 1.7 0.57 $2.5 **Wet FGD Ctrl-3**  

## 1845 $3.3 $1,804 1.7 0.56 $5.9 **Wet FGD u.3 Ctrl-4**  

## 1404 $2.0 $1,395 1.8 0.44 $4.4 **Wet FGD u.2 Ctrl-5**  

## 441 $1.4 $3,105 2.0 0.20 $6.7 **MAT Ctrl-6**  

## 582 $0.4 $618 2.0 0.21 $1.7 **SNCR Ctrl-7**  

## 382 $0.5 $1,182 1.9 0.35 $1.3 **LNB + SNCR Ctrl-8**  

## 390 $1.3 $3,272 1.9 0.35 $3.6 **Controlled Emissions**

**Control Costs**

*incremental cost compared to cost of LNB with 30% reduction since both of these provide roughly the same total NOx reduction



### Control **Option Unit 2**  **Unit 3**

**Nelson Kiln 1 Nelson Kiln 2** 

**Uncontrolled emissions**

**Nelson Kiln 1 Nelson Kiln 2** 

Impact on PM speciation No Change No Change No Change No Change No Change No Change Yes, FF plus scrubber

## Chemical Lime Company Nelson 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 Ctrl-7 Ctrl-8 Base Case Ctrl-1 Ctrl-2 Ctrl-3 Ctrl-4 Ctrl-5 Ctrl-6 Ctrl-7 Ctrl-8 CIA**Class I Area** Baghouse DLI DSI w/ SBCWet FGDWet FGD u.3Wet FGD u.2 MAT SNCRLNB + SNCR Baghouse DLI DSI w/ SBC Wet FGD Wet FGD u.3Wet FGD u.2 MAT SNCR LNB + SNCR brcaBryce Canyon 0.13 0.10 0.08 0.07 0.09 0.10 0.11 0.10 0.10 0.00 0.03 0.04 0.05 0.04 0.02 0.02 0.03 0.03 grcaGrand Canyon **1.19 1.08**  **1.02 1.13**  **1.11 1.15**  **1.05 0.96**  **0.96** 0.00 0.11 0.17 0.06 0.07 0.03 0.14 0.23 0.23 jotrJoshua Tree 0.16 0.11 0.09 0.08 0.10 0.13 0.15 0.15 0.15 0.00 0.05 0.07 0.08 0.06 0.03 0.01 0.01 0.01
mazaMazatzal 0.10 0.07 0.06 0.05 0.06 0.09 0.10 0.09 0.09 0.00 0.03 0.05 0.05 0.04 0.02 0.00 0.01 0.01 pimoPine Mountain 0.10 0.07 0.05 0.05 0.06 0.08 0.09 0.09 0.09 0.00 0.03 0.04 0.05 0.04 0.01 0.00 0.00 0.00 sianSierra Ancha 0.07 0.05 0.04 0.03 0.04 0.06 0.07 0.07 0.07 0.00 0.03 0.04 0.05 0.03 0.02 0.00 0.00 0.00 supeSuperstition 0.10 0.06 0.05 0.04 0.05 0.08 0.10 0.09 0.09 0.00 0.03 0.05 0.06 0.04 0.02 0.00 0.00 0.00 sycaSycamore Canyon 0.19 0.14 0.12 0.09 0.12 0.16 0.18 0.17 0.17 0.00 0.05 0.08 0.10 0.07 0.04 0.02 0.03 0.03 zionZion 0.19 0.16 0.15 0.13 0.15 0.17 0.17 0.16 0.16 0.00 0.03 0.04 0.06 0.04 0.02 0.02 0.03 0.03 **Total** 

### 2.22 1.83 1.65 1.66 1.78 2.02 2.02 1.88 1.87 0.00 

### 0.39 0.57 0.56 0.44 0.20 0.21 0.35 0.35 **Max** 

### 1.19 1.08 1.02 1.13 1.11 1.15 1.05 0.96 0.96 0.00 

### 0.11 0.17 0.10 0.07 0.04 0.14 0.23 0.23 **# CIAs w/****-dv ≥ 0.5**  

### 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0

**Ta ble 5(a). Control Opon Cost Effecveness (million $/dv)†**  Ctrl-1 Ctrl-2 Ctrl-3 Ctrl-4 Ctrl-5 Ctrl-6 Ctrl-7 Ctrl-8 CIA DLI DSI w/ SBCWet FGDWet FGD u.3Wet FGD u.2 MAT SNCRLNB + SNCR brcaBryce Canyon 79 35 64 49 62 21 16 44 grcaGrand Canyon 18 9 57 27 41 3 2 6 jotrJoshua Tree 41 20 41 31 46 40 41 116
mazaMazatzal 60 30 62 49 86 90 45 128 pimoPine Mountain 76 33 67 52 105 120 151 425 sianSierra Ancha 79 37 72 58 91 180 113 319 supeSuperstition 62 30 57 47 81 N/A 113 319 sycaSycamore Canyon 40 19 33 28 38 24 17 49 zionZion 64 35 55 45 65 18 13 38 **$/dv_sum** 5.3 2.5 5.9 4.4 6.7 1.7 1.3 3.6 ($/yr) / (sum of dv benefits over all areas) **$/dv_m ax**  18.5 8.7 33.3 27.2 38.0 2.6 2.0 5.5 ($/yr) / (max dv benefit of any area) **Change relative to base (dv)**

†

### $/dv = $ per y

ear from Table 2 divided by visibility improvement from Table 1(a) for each control option, in millions **Class I Area 98** **th Percentile** **-dv**

Number of Class I Areas with visibility improvement≥0.5 dv Number of Class I Areas with visibility impairment≥0.5 dv**Table 1(a). Visibility Impairment (98th Percentile) at Each Class I Area (CIA) Within Chemical Lime Company Nelson Plant's Zone of Influence (300 km) for 2001-2003 Base Case Emissions and Control Options (listed in Table 2) CIA**  **Table 2. Control Options (per EPA Region 9) and Corresponding Emission Reductions Relative to Base Used in Visibility Modeling All Units** 

**Base Ctrl-1** **Ctrl-2 Ctrl-3** **Ctrl-4 Ctrl-5** **Ctrl-6 Ctrl-7** **Ctrl-8 Ctrl-1** **Ctrl-2 Ctrl-3** **Ctrl-4 Ctrl-5** **Ctrl-6 Ctrl-7** **Ctrl-8 Base**  **Ctrl-1 Ctrl-2** **Ctrl-3 Ctrl-4** **Ctrl-5 Ctrl-6** **Ctrl-7 Ctrl-8** **Ctrl-1 Ctrl-2** **Ctrl-3 Ctrl-4** **Ctrl-5 Ctrl-6** **Ctrl-7 Ctrl-8** **Base Ctrl-1** **Ctrl-2 Ctrl-3** **Ctrl-4 Ctrl-5** **Ctrl-6 Ctrl-7** **Ctrl-8 Ctrl-1** **Ctrl-2 Ctrl-3** **Ctrl-4 Ctrl-5** **Ctrl-6 Ctrl-7** **Ctrl-8 Base**  **Ctrl-1 Ctrl-2**  **Ctrl-3 Ctrl-4**  **Ctrl-5 Ctrl-6**  **Ctrl-7 Ctrl-1**  **Ctrl-2 Ctrl-3** **Ctrl-4 Ctrl-5** **Ctrl-6 Ctrl-7** **Ctrl-8 $/year**  brca 0.101 0.082 0.075 0.070 0.078 0.088 0.088 0.079 0.079 0.019 0.026 0.031 0.023 0.013 0.013 0.022 0.022 0.102 0.090 0.083 0.078 0.085 0.094 0.093 0.090 0.089 0.012 0.019 0.024 0.017 0.008 0.009 0.012 0.013 0.147 0.103 0.088 0.073 0.088 0.126 0.133 0.120 0.119 0.044 0.059 0.074 0.059 0.021 0.014 0.027 0.028 0.125 0.099 0.084 0.073 0.085 0.103 0.108 0.097 0.026 0.041 0.052 0.040 0.022 0.017 0.028 0.029 **SO 2**  **NOx SO** **2 NOx**  **SO 2**  **NOx SO** **2 +NO** **x** grca 0.807 0.760 0.719 0.929 0.899 0.856 0.732 0.683 0.680 0.047 0.088-0.122-0.092-0.049 0.075 0.124 0.127 0.994 0.892 0.841 1.051 1.001 1.008 0.858 0.786 0.782 0.102 0.153-0.057-0.007-0.014 0.136 0.208 0.212 1.454 1.358 1.314 1.439 1.454 1.477 1.336 1.255 1.251 0.096 0.140 0.015 0.000-0.023 0.118 0.199 0.203 1.186 1.075 1.021 1.128 1.114 1.153 1.050 0.961 0.111 0.165 0.058 0.072 0.033 0.136 0.225 0.230 Base Case 0 0 0 0 0 0 $0 jotr 0.218 0.142 0.124 0.107 0.135 0.169 0.216 0.202 0.202 0.076 0.094 0.111 0.083 0.049 0.002 0.016 0.016 0.162 0.108 0.086 0.069 0.094 0.126 0.155 0.152 0.152 0.054 0.076 0.093 0.068 0.036 0.007 0.010 0.010 0.122 0.079 0.057 0.052 0.065 0.093 0.115 0.108 0.107 0.043 0.065 0.070 0.057 0.029 0.007 0.014 0.015 0.159 0.109 0.088 0.077 0.095 0.129 0.150 0.148 0.050 0.071 0.082 0.064 0.030 0.009 0.011 0.011 Ctrl-1 DLS 232 0DLS 739 0 971 0$2,048,348
maza 0.078 0.053 0.045 0.027 0.041 0.060 0.077 0.074 0.074 0.025 0.033 0.051 0.037 0.018 0.001 0.004 0.004 0.126 0.088 0.073 0.072 0.082 0.104 0.116 0.104 0.104 0.038 0.053 0.054 0.044 0.022 0.010 0.022 0.022 0.109 0.073 0.061 0.048 0.063 0.086 0.104 0.101 0.101 0.036 0.048 0.061 0.046 0.023 0.005 0.008 0.008 0.102 0.068 0.055 0.048 0.062 0.086 0.098 0.092 0.034 0.047 0.054 0.040 0.016 0.004 0.010 0.010 Ctrl-2 SBC Inj. 348 0SBC inj. 1109 0 1457 0$1,430,417 pimo 0.074 0.049 0.041 0.031 0.042 0.057 0.073 0.072 0.072 0.025 0.033 0.043 0.032 0.017 0.001 0.002 0.002 0.113 0.084 0.058 0.053 0.063 0.099 0.102 0.094 0.093 0.029 0.055 0.060 0.050 0.014 0.011 0.019 0.020 0.104 0.080 0.072 0.053 0.073 0.091 0.101 0.097 0.097 0.024 0.032 0.051 0.031 0.013 0.003 0.007 0.007 0.096 0.069 0.052 0.046 0.058 0.083 0.093 0.093 0.027 0.044 0.050 0.038 0.013 0.003 0.003 0.003 Ctrl-3 Wet FGD 441 0Wet FGD 1404 0 1845 0$3,327,788 sian 0.052 0.034 0.020 0.013 0.024 0.039 0.051 0.051 0.051 0.018 0.032 0.039 0.028 0.013 0.001 0.001 0.001 0.091 0.060 0.039 0.032 0.047 0.071 0.082 0.075 0.074 0.031 0.052 0.059 0.044 0.020 0.009 0.016 0.017 0.084 0.048 0.035 0.034 0.041 0.064 0.081 0.081 0.081 0.036 0.049 0.050 0.043 0.020 0.003 0.003 0.003 0.074 0.048 0.035 0.028 0.040 0.059 0.072 0.070 0.026 0.039 0.046 0.034 0.015 0.002 0.004 0.004 Ctrl-4 0 0Wet FGD 1404 0 1404 0$1,958,408 supe 0.063 0.041 0.029 0.018 0.033 0.050 0.061 0.060 0.060 0.022 0.034 0.045 0.030 0.013 0.002 0.003 0.003 0.114 0.082 0.065 0.058 0.072 0.095 0.108 0.103 0.103 0.032 0.049 0.056 0.042 0.019 0.006 0.011 0.011 0.099 0.063 0.048 0.038 0.056 0.076 0.096 0.096 0.096 0.036 0.051 0.061 0.043 0.023 0.003 0.003 0.003 0.096 0.063 0.048 0.038 0.054 0.079 0.096 0.092 0.033 0.048 0.058 0.042 0.017 0.000 0.004 0.004 Ctrl-5 Wet FGD 441 0 0 0 441 0$1,369,380 syca 0.145 0.107 0.097 0.077 0.093 0.116 0.140 0.130 0.129 0.038 0.048 0.068 0.052 0.029 0.005 0.015 0.016 0.193 0.143 0.115 0.090 0.118 0.163 0.180 0.167 0.167 0.050 0.078 0.103 0.075 0.030 0.013 0.026 0.026 0.231 0.172 0.141 0.107 0.141 0.199 0.221 0.215 0.215 0.059 0.090 0.124 0.090 0.032 0.010 0.016 0.016 0.193 0.142 0.116 0.093 0.123 0.157 0.178 0.167 0.051 0.077 0.100 0.070 0.036 0.015 0.026 0.026 Ctrl-6 MAT 139 0MAT 443 0 582 0 $359,830 zion 0.192 0.144 0.120 0.109 0.133 0.165 0.172 0.158 0.158 0.048 0.072 0.083 0.059 0.027 0.020 0.034 0.034 0.176 0.159 0.143 0.127 0.135 0.166 0.165 0.149 0.148 0.017 0.033 0.049 0.041 0.010 0.011 0.027 0.028 0.201 0.174 0.160 0.138 0.165 0.184 0.176 0.172 0.171 0.027 0.041 0.063 0.036 0.017 0.025 0.029 0.030 0.192 0.160 0.151 0.132 0.148 0.171 0.172 0.158 0.032 0.041 0.060 0.044 0.021 0.020 0.034 0.034 Ctrl-7 SNCR 0 187SNCR 0 195 0 382 $451,644 Ctrl-8 LNB+SNCR 0 191LNB+SNCR 0 199 0 390$1,276,193

**Table 3a. NO x** **Control Technologies for CLC Nelson Plant Units 2-3**(from Andover Technology Partners Report Table 3-9)

LNB SNCR LNB and SNCR LNB SNCR LNB and SNCR **TPD Lime** 859 859 859 1,145 1,145 1,145

**Uncontrolled NOx, lb/ton** 2.66 2.66 2.66 2.08 2.08 2.08 **PPH NOx** 95 95 95 99 99 99 **TPY NOx (90% capacity factor)** 375 375 375 391 391 391

**Reduction** 30% 50% 51% 30% 50% 51% **Controlled NOx, lb/ton** 1.86 1.33 1.3 1.46 1.04 1.02 **PPH NOx** 67 48 47 69 50 49 **TPY NOx (90% capacity factor)** 263 188 184 274 196 192

**Capital Cost** $2,389,443 $679,055 $3,068,499 $2,857,256 $806,849 $3,664,105 **Total Annualized Cost** $396,129 $216,179 $597,335 $459,000 $235,465 $678,858 **$/ton removed** $3,518 $1,152 $3,121 $3,911 $1,204 $3,403 **incremental, $/ton removed** $3,518 -$2,397* $2,553* $3,911 -$2,857* $2,676*

**Table 3b. SO 2** **Control Technologies for CLC Nelson Plant Units 2-3**(from Andover Technology Partners Report Table 3-11)

**MAT Dry Lime**  **DSI with SBC Wet FGD**  **MAT Dry Lime**  **DSI with SBC Wet FGD**  Historical SO2, lb/ton 3.29 3.29 3.29 3.29 7.87 7.87 7.87 7.87 Historical SO2, pph 118 118 118 118 375 375 375 375 Percent Removal 30% 50% 75% 95% 30% 50% 75% 95% Outlet SO2, pph 82.4 58.9 29.4 5.9 262.5 187.5 93.8 18.8 Outlet SO2, lb/ton 2.3 1.65 0.82 0.16 5.51 3.94 1.97 0.39 % change in stack Velocity No Change No Change No Change -20% No Change No Change No Change -20% Exit temp No Change No Change No Change 130 F No Change No Change No Change 130 F Yes FF plus scrubber Capital Cost $754,196 $770,000 $409,382 8,082,077 $807,040 $1,940,000 $1,034,122 10,772,967 Annualized Costs $176,364 $545,415 $389,957 $1,369,380 $183,466 $1,502,933 $1,040,460 $1,958,408

TPY removed (90% capacity factor) 139 232 348 441 443 739 1109 1404

$/ton removed $1,266 $2,350 $1,120 $3,105 $414 $2,033 $938 $1,395 Incremental $/ton $1,266 $3,975 ($1,340) $10,550 $414 $4,463 ($1,251) $3,105 **Control Option Control**  **Control**

**Nelson Kiln 1 Nelson Kiln 2**  

**- Emis (TPY)**  **All Units Unit 3**  

**- Emis (TPY)**  **Unit 2** 

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

*incremental cost compared to cost of LNB with 30% reduction since both of these provide roughly the same total NOx reduction **Uncontrolled emissions**

**Controlled Emissions**

**Control Costs**

**Nelson Kiln 1 Nelson Kiln 2** 

Impact on PM speciation No Change No Change No Change No Change No Change No Change Yes, FF plus scrubber **2001-2003 98th Percentile** **-dv Change relative to base (dv)**  **2001 2002**  **98th Percentile****-dv Change relative to base (dv)**  **2003**

# Chemical Lime Company Nelson Units 1 - 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**  

### Baghouse **Base Case** 0 0 0 $0 DLI **Ctrl-1** DLS 232DLS 739 971$2,048,348 DSI w/ SBC **Ctrl-2** SBC Inj. 348SBC inj. 1109 1457$1,430,417 Wet FGD **Ctrl-3** Wet FGD 441Wet FGD 1404 1845$3,327,788 Wet FGD u.3 **Ctrl-4** 0Wet FGD 1404 1404$1,958,408 Wet FGD u.2 **Ctrl-5** Wet FGD 441 0 441$1,369,380 MAT **Ctrl-6** MAT 139MAT 443 582$359,830 SNCR **Ctrl-7** SNCR 187SNCR 195 382$451,644 LNB + SNCR **Ctrl-8** LNB+SNCR 191LNB+SNCR 199 390$1,276,193

**Table 3. NO x** 

### Control Technologies for CLC Nelson Units 2-3(from Andover Technology Partners Report Table 3-9a and 3-9b)

LNB SNCR LNB and SNCR LNB SNCR LNB and SNCR **TPD Lime** 859 859 859 1,145 1,145 1,145
**Uncontrolled NOx, lb/ton** 2.66 2.66 2.66 2.08 2.08 2.08 **PPH NOx** 95 95 95 99 99 99 **TPY NOx (90% capacity factor)** 375 375 375 391 391 391

**Reduction** 30% 50% 51% 30% 50% 51% **Controlled NOx, lb/ton** 1.86 1.33 1.3 1.46 1.04 1.02 **PPH NOx** 67 48 47 69 50 49 **TPY NOx (90% capacity factor)** 263 188 184 274 196 192

**Capital Cost** $2,389,443 $679,055 $3,068,499 $2,857,256 $806,849 $3,664,105 **Total Annualized Cost** $396,129 $216,179 $597,335 $459,000 $235,465 $678,858 **$/ton removed** $3,518 $1,152 $3,121 $3,911 $1,204 $3,403 **incremental, $/ton removed** $3,518 -$2,397* $2,553* $3,911 -$2,857* $2,676*



### Table 3b. SO**2**

### Control Technologies for CLC Nelson Plant Units 2-3(from Andover Technology Partners Report Table 3-11)

**MAT Dry Lime**  **DSI with SBC Wet FGD**  **MAT Dry Lime**  **DSI with SBC Wet FGD**  Historical SO2, lb/ton 3.29 3.29 3.29 3.29 7.87 7.87 7.87 7.87 Historical SO2, pph 118 118 118 118 375 375 375 375 Percent Removal 30% 50% 75% 95% 30% 50% 75% 95% Outlet SO2, pph 82.4 58.9 29.4 5.9 262.5 187.5 93.8 18.8 Outlet SO2, lb/ton 2.3 1.65 0.82 0.16 5.51 3.94 1.97 0.39 % change in stack Velocity No Change No Change No Change -20% No Change No Change No Change -20% Exit temp No Change No Change No Change 130 F No Change No Change No Change 130 F Yes FF plus scrubber Capital Cost $754,196 $770,000 $409,382 8,082,077 $807,040 $1,940,000 $1,034,122 10,772,967 Annualized Costs $176,364 $545,415 $389,957 $1,369,380 $183,466 $1,502,933 $1,040,460 $1,958,408

TPY removed (90% capacity factor) 139 232 348 441 443 739 1109 1404
$/ton removed $1,266 $2,350 $1,120 $3,105 $414 $2,033 $938 $1,395 Incremental $/ton $1,266 $3,975 ($1,340) $10,550 $414 $4,463 ($1,251) $3,105 

# Nelson Lime Units 2 and 3

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

Controls **Control Option**  

## ton/yr

**reduction cost, $/yr** 

**(millions) $/ton** 

**reduction visibility** 

**impact, dv visibility** 

**benefit, dv $/dv** 

**(millions)**# CIAs w/

improvement ≥0.5 dv **Baghouse Base Case**  

## 0 $0.0 1.6 **DLI Ctrl-1**  

## 971 $2.0 $2,110 1.5 0.13 $15.4 0 **DSI w/ SBC Ctrl-2**  

## 1457 $1.4 $982 1.4 0.21 $6.9 0 **Wet FGD Ctrl-3**  

## 1845 $3.3 $1,804 1.6 0.10 $34.0 0 **Wet FGD u.3 Ctrl-4**  

## 1404 $2.0 $1,395 1.5 0.08 $26.1 0 **Wet FGD u.2 Ctrl-5**  

## 441 $1.4 $3,105 1.6 0.04 $39.1 0 **MAT Ctrl-6**  

## 582 $0.4 $618 1.4 0.18 $2.0 0 **SNCR Ctrl-7**  

## 382 $0.5 $1,182 1.3 0.31 $1.5 0 **LNB + SNCR Ctrl-8**  

## 390 $1.3 $3,272 1.3 0.32 $4.0 0 (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** 

**(millions) Baghouse**  **Base Case** 

## 0 $0.0 2.8 **DLI Ctrl-1**  

## 971 $2.0 $2,110 2.4 0.44 $4.7 **DSI w/ SBC Ctrl-2**  

## 1457 $1.4 $982 2.2 0.64 $2.2 **Wet FGD Ctrl-3**  

## 1845 $3.3 $1,804 2.2 0.58 $5.7 **Wet FGD u.3 Ctrl-4**  

## 1404 $2.0 $1,395 2.3 0.48 $4.1 **Wet FGD u.2 Ctrl-5**  

## 441 $1.4 $3,105 2.6 0.23 $6.0 **MAT Ctrl-6**  

## 582 $0.4 $618 2.5 0.29 $1.2 **SNCR Ctrl-7**  

## 382 $0.5 $1,182 2.3 0.48 $0.9 **LNB + SNCR Ctrl-8**  

## 390 $1.3 $3,272 2.3 0.49 $2.6 **Controlled Emissions**

**Control Costs**

*incremental cost compared to cost of LNB with 30% reduction since both of these provide roughly the same total NOx reduction



### Control **Option Unit 2**  **Unit 3**

**Nelson Kiln 1 Nelson Kiln 2** 

**Uncontrolled emissions**

**Nelson Kiln 1 Nelson Kiln 2** 

Impact on PM speciation No Change No Change No Change No Change No Change No Change Yes, FF plus scrubber

## Chemical Lime Company Nelson Units 2 and 3 visibility method 8, 20% best background (this page edited from vis8.20best sheet) **Table 1(b). 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 Ctrl-7 Ctrl-8 Base Case Ctrl-1 Ctrl-2 Ctrl-3 Ctrl-4 Ctrl-5 Ctrl-6 Ctrl-7 Ctrl-8 CIA

### Class I Area Baghouse DLI DSI w/ SBCWet FGDWet FGD u.3Wet FGD u.2 MAT SNCRLNB + SNCR Baghouse DLI SBC Wet FGD u.3 Wet FGD u.2 MAT SNCR LNB + SNCR 

### brcaBryce Canyon 0.17 0.13 0.11 0.10 0.12 0.14 0.15 0.13 0.13 0.00 0.04 0.06 0.07 0.05 0.03 0.02 0.04 0.04 grcaGrand Canyon **1.61 1.48**  **1.40 1.56**  **1.54 1.58**  **1.43 1.30**  **1.29** 0.00 0.13 0.21 0.05 0.08 0.03 0.18 0.31 0.32 jotrJoshua Tree 0.18 0.13 0.10 0.09 0.11 0.15 0.17 0.17 0.16 0.00 0.05 0.08 0.09 0.07 0.03 0.01 0.01 0.02
mazaMazatzal 0.11 0.08 0.06 0.06 0.07 0.09 0.10 0.10 0.10 0.00 0.03 0.05 0.05 0.04 0.02 0.01 0.01 0.01 pimoPine Mountain 0.11 0.08 0.06 0.06 0.06 0.09 0.10 0.10 0.10 0.00 0.03 0.05 0.05 0.05 0.02 0.01 0.01 0.01 sianSierra Ancha 0.08 0.05 0.04 0.03 0.04 0.06 0.08 0.07 0.07 0.00 0.03 0.04 0.05 0.03 0.02 0.00 0.01 0.01 supeSuperstition 0.10 0.06 0.05 0.04 0.06 0.08 0.10 0.09 0.09 0.00 0.04 0.05 0.06 0.05 0.02 0.01 0.01 0.01 sycaSycamore Canyon 0.21 0.16 0.14 0.11 0.14 0.17 0.19 0.17 0.17 0.00 0.05 0.07 0.10 0.07 0.04 0.02 0.04 0.04 zionZion 0.23 0.19 0.18 0.16 0.18 0.20 0.20 0.18 0.18 0.00 0.04 0.05 0.07 0.05 0.03 0.03 0.05 0.05

**Total**

### 2.79 2.35 2.15 2.21 2.31 2.56 2.50 2.32 2.31 0.44 0.64 0.58 0.48 0.23 0.29 0.48 0.49 **Max**

### 1.61 1.48 1.40 1.56 1.54 1.58 1.43 1.30 1.29 0.13 0.21 0.10 0.08 0.04 0.18 0.31 0.32 **# CIAs with dv ≥ 0.5**  1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0

**Ta ble 5(b). Control Opon Cost Effecveness (million $/dv)†**  Ctrl-1 Ctrl-2 Ctrl-3 Ctrl-4 Ctrl-5 Ctrl-6 Ctrl-7 Ctrl-8 CIA DLI DSI w/ SBCWet FGDWet FGD u.3Wet FGD u.2 MAT SNCRLNB + SNCR 

### brcaBryce Canyon 55 26 48 36 47 15 12 33 grcaGrand Canyon 15 7 67 26 41 2 1 4 jotrJoshua Tree 39 19 39 29 47 36 32 85
mazaMazatzal 64 31 62 50 68 45 45 128 pimoPine Mountain 62 28 62 44 72 45 56 160 sianSierra Ancha 73 38 72 58 91 120 90 255 supeSuperstition 55 30 56 44 62 60 56 160 sycaSycamore Canyon 40 20 34 28 39 17 13 35 zionZion 57 31 49 39 55 12 10 27

**$/dv_sum** 4.7 2.2 5.7 4.1 6.0 1.2 0.9 2.6 ($/yr) / (sum of dv benefits over all areas) **$/dv_max** 15.4 6.9 34.0 26.1 39.1 2.0 1.5 4.0 ($/yr) / (max dv benefit of any area) **Class I Area** Number of Class I Areas with visibility improvement≥0.5 dv **Change relative to Base (dv)**

Number of Class I Areas with visibility impact≥0.5 dv

**98 th** 

### Percentile**-dv**

†

### $/dv = $ per year from Table 2 divided by visibility improvement from Table 1(d) for each control option, in millions

# CIA

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

brca 

# 0.134 0.111 0.102 0.095 0.104 0.117 0.116 grca 

# 1.100 1.038 0.994 1.247 1.215 1.157 0.993 jotr 

# 0.239 0.164 0.144 0.124 0.156 0.186 0.235
maza 

# 0.083 0.060 0.051 0.031 0.046 0.067 0.078 pimo 

# 0.079 0.055 0.046 0.037 0.048 0.063 0.076 sian 

# 0.051 0.035 0.022 0.015 0.025 0.043 0.051 supe 

# 0.068 0.041 0.030 0.020 0.035 0.052 0.061 syca 

# 0.168 0.136 0.126 0.101 0.125 0.144 0.141 zion 

# 0.220 0.168 0.142 0.130 0.156 0.191 0.196 **Table 1(d). Visibility Impairment (98** **th**

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


# 98th Percentile**-dv**

# Ctrl-7**Ctrl-8 Ctrl-1**  **Ctrl-2 Ctrl-3** **Ctrl-4 Ctrl-5** **Ctrl-6**

0.104 0.104 0.023 0.032 0.039 0.030 0.017 0.018 0.924 0.921 0.062 0.106 -0.147 -0.115 -0.057 0.107 0.233 0.233 0.075 0.095 0.115 0.083 0.053 0.004 0.077 0.076 0.023 0.032 0.052 0.037 0.016 0.005 0.075 0.075 0.024 0.033 0.042 0.031 0.016 0.003 0.051 0.051 0.016 0.029 0.036 0.026 0.008 0.000 0.059 0.059 0.027 0.038 0.048 0.033 0.016 0.007 0.122 0.122 0.032 0.042 0.067 0.043 0.024 0.027 0.180 0.179 0.052 0.078 0.090 0.064 0.029 0.024 **Percentile) at Each Class I Area (CIA) Within Chemical Lime Company Nelson's Zone of Influence (300 km) for 2001-2003 Base Case Emissions and Control Options** 

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

# Ctrl-7**Ctrl-8 Base**  **Ctrl-1 Ctrl-2** **Ctrl-3 Ctrl-4** **Ctrl-5**

0.030 0.030 0.137 0.121 0.111 0.106 0.115 0.127 0.176 0.179 1.356 1.229 1.140 1.317 1.317 1.341 0.006 0.006 0.180 0.127 0.098 0.080 0.108 0.147 0.006 0.007 0.139 0.099 0.083 0.083 0.093 0.116 0.004 0.004 0.130 0.092 0.067 0.062 0.072 0.114 0.000 0.000 0.098 0.061 0.044 0.035 0.054 0.075 0.009 0.009 0.118 0.087 0.070 0.065 0.077 0.101 0.046 0.046 0.192 0.147 0.135 0.111 0.133 0.171 0.040 0.041 0.207 0.188 0.170 0.151 0.159 0.194 **Percentile) at Each Class I Area (CIA) Within Chemical Lime Company Nelson's Zone of Influence (300 km) for 2001-2003 Base Case Emissions and Control Options**(listed in Table 2)


# 98th Percentile**-dv**

# Ctrl-6**Ctrl-7 Ctrl-8** **Ctrl-1 Ctrl-2** **Ctrl-3 Ctrl-4** **Ctrl-5**

0.117 0.112 0.112 0.016 0.026 0.031 0.022 0.010 1.165 1.035 1.029 0.127 0.216 0.039 0.039 0.015 0.174 0.165 0.165 0.053 0.082 0.100 0.072 0.033 0.129 0.120 0.119 0.040 0.056 0.056 0.046 0.023 0.116 0.107 0.106 0.038 0.063 0.068 0.058 0.016 0.090 0.084 0.083 0.037 0.054 0.063 0.044 0.023 0.113 0.108 0.107 0.031 0.048 0.053 0.041 0.017 0.180 0.173 0.173 0.045 0.057 0.081 0.059 0.021 0.180 0.171 0.170 0.019 0.037 0.056 0.048 0.013

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

# Ctrl-6**Ctrl-7 Ctrl-8** **Base Ctrl-1**  **Ctrl-2 Ctrl-3** **Ctrl-4**

0.020 0.025 0.025 0.195 0.133 0.122 0.100 0.122 0.191 0.321 0.327 1.970 1.819 1.767 1.937 1.933 0.006 0.015 0.015 0.132 0.086 0.065 0.060 0.075 0.010 0.019 0.020 0.118 0.083 0.068 0.057 0.071 0.014 0.023 0.024 0.113 0.093 0.083 0.062 0.086 0.008 0.014 0.015 0.088 0.050 0.040 0.039 0.047 0.005 0.010 0.011 0.101 0.068 0.053 0.042 0.061 0.012 0.019 0.019 0.263 0.189 0.159 0.116 0.162 0.027 0.036 0.037 0.233 0.204 0.189 0.163 0.193 **Change relative to base (dv) 98th Percentile** 

# Ctrl-5**Ctrl-6 Ctrl-7** **Ctrl-8 Ctrl-1**  **Ctrl-2 Ctrl-3** **Ctrl-4**

0.167 0.170 0.160 0.159 0.062 0.073 0.095 0.073 2.011 1.808 1.697 1.692 0.151 0.203 0.033 0.037 0.106 0.132 0.126 0.126 0.046 0.067 0.072 0.057 0.097 0.116 0.112 0.112 0.035 0.050 0.061 0.047 0.105 0.106 0.106 0.106 0.020 0.030 0.051 0.027 0.067 0.083 0.083 0.083 0.038 0.048 0.049 0.041 0.076 0.096 0.096 0.096 0.033 0.048 0.059 0.040 0.210 0.239 0.223 0.223 0.074 0.104 0.147 0.101 0.214 0.201 0.190 0.190 0.029 0.044 0.070 0.040 **2003** **-dv Change relative to base (dv)** 

# Ctrl-5**Ctrl-6 Ctrl-7** **Ctrl-8 Base**  **Ctrl-1 Ctrl-2** **Ctrl-3**

0.028 0.025 0.035 0.036 0.169 0.132 0.114 0.100 -0.041 0.162 0.273 0.278 1.611 1.478 1.404 1.561 0.026 0.000 0.006 0.006 0.179 0.127 0.104 0.093 0.021 0.002 0.006 0.006 0.110 0.078 0.064 0.056 0.008 0.007 0.007 0.007 0.109 0.076 0.057 0.055 0.021 0.005 0.005 0.005 0.078 0.050 0.040 0.032 0.025 0.005 0.005 0.005 0.101 0.064 0.053 0.042 0.053 0.024 0.040 0.040 0.209 0.158 0.139 0.111 0.019 0.032 0.043 0.043 0.225 0.189 0.179 0.157 **Change relative to base (dv) 98th Percentile** 

# Ctrl-4**Ctrl-5 Ctrl-6** **Ctrl-7 Ctrl-8** **Ctrl-1 Ctrl-2** **Ctrl-3**

0.115 0.140 0.145 0.130 0.130 0.037 0.055 0.069 1.536 1.578 1.429 1.301 1.293 0.133 0.207 0.050 0.112 0.150 0.169 0.165 0.164 0.052 0.075 0.086 0.071 0.090 0.102 0.100 0.100 0.032 0.046 0.054 0.064 0.090 0.101 0.101 0.101 0.033 0.052 0.054 0.044 0.063 0.075 0.073 0.073 0.028 0.038 0.046 0.056 0.079 0.095 0.093 0.093 0.037 0.048 0.059 0.139 0.174 0.188 0.173 0.173 0.051 0.070 0.098 0.175 0.200 0.196 0.179 0.178 0.036 0.046 0.068 **2001-2003 98th Percentile** **-dv Change relative to base (dv)** 

# Ctrl-4**Ctrl-5 Ctrl-6** **Ctrl-7 Ctrl-8** 

0.054 0.029 0.024 0.039 0.039 0.075 0.033 0.182 0.310 0.318 0.067 0.029 0.010 0.014 0.015 0.039 0.020 0.008 0.010 0.010 0.045 0.019 0.008 0.008 0.008 0.034 0.015 0.003 0.005 0.005 0.045 0.022 0.006 0.008 0.008 0.070 0.035 0.021 0.036 0.036 0.050 0.025 0.029 0.046 0.047 **Change relative to base (dv)**

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

CLC Nelson Control scenarios Class I areas scenariosunit 2 unit 3 short abbrClass I area Class I area, mediumClass I area, long state
Base Case Baghouse bandBandelier Bandelier NM Bandelier NM NM Ctrl-1 DLI DLI DLI brcaBryce Canyon Bryce Canyon NP Bryce Canyon NP UT Ctrl-2 SBC Inj SBC Inj DSI w/ SBC careCapitol Reef Capitol Reef NP Capitol Reef NP UT Ctrl-3 Wet FGD Wet FGD Wet FGD chirChiricahua NMChiricahua NM Chiricahua NM AZ Ctrl-4 Wet FGD Wet FGD u.3 chrwChiricahua Chiricahua Wild. Chiricahua Wilderness AZ Ctrl-5 Wet FGD Wet FGD u.2 galiGaliuro Galiuro Wild. Galiuro Wilderness AZ Ctrl-6 MAT MAT MAT gilaGila Gila Wild. Gila Wilderness NM Ctrl-7 SNCR SNCR SNCR grcaGrand Canyon Grand Canyon NP Grand Canyon NP AZ Ctrl-8 LNB/SNCR LNB/SNCR LNB + SNCR jotrJoshua Tree Joshua Tree NP Joshua Tree NP CA mazaMazatzal Mazatzal Wild. Mazatzal Wilderness AZ meveMesa Verde Mesa Verde NP Mesa Verde NP CO mobaMount Baldy Mount Baldy Wild. Mount Baldy Wilderness AZ pefoPetrified ForestPetrified Forest NP Petrified Forest NP AZ pimoPine MountainPine Mountain Wild.Pine Mountain Wilderness AZ saguSaguaro Saguaro NP Saguaro NP AZ sapeSan Pedro ParksSan Pedro Parks Wild.San Pedro Parks Wilderness NM sianSierra Ancha Sierra Ancha Wild. Sierra Ancha Wilderness AZ supeSuperstition Superstition Wild. Superstition Wilderness AZ sycaSycamore CanyonSycamore Canyon Wild.Sycamore Canyon WildernessAZ zionZion Zion NP Zion NP UT