# Chart 1

Turn on the PivotTableField List to work with the PivotChart.

# Chart 1

Turn on the PivotTableField List to work with the PivotChart.

# Chart 1

Turn on the PivotTableField List to work with the PivotChart.

## TEP Sundt, NO conversion sensitivity tests for AZ RH FIP NPRM, January 2014 sjb 2014-01-06 **Control scenarios** base base case ctrl13 Pipeline Natural Gas (PNG) at NOx 0.22 lb/MMBtu on unit 4 ctrl15 SNCR at 30% control NOx and DSI at 70% control SO2 on unit 4

**Assessing the effect of NO-to-NO2 conversion rate assumption**

Since TEP Sundt is rather near Saguaro National Park (17 km from receptors in east unit), some of the emitted NOx might still be in the form of NO, rather than 100% NO2 as assumed by CALPUFF. Additional post-processing was performed to assess the effect of various degrees of conversion of NO to NO2. Starting from the CALPUFF modeling for these scenarios (direct from CALPUFF, no POSTUTIL), the NO, NO3 and HNO3 concentrations were scaled by 10%, 25%, 50%, and 75% using POSTUTIL. The lowest rate of 10% reflects NOx as emitted, with no additional conversion downwind. This was done only for the Saguaro National Park receptors, considering them all together and also considering the east and west units separately. Normal POSTUTIL nitrate partioning was then performed, assuming a constant 1 ppb ammonia background concentration. Finally CALPOST was run using visibility method "8b" (that is, MVISBK=8 for the revised IMPROVE equation, and best 20% natural background). **Results** As expected, deciview impacts for the Saguaro NP was a whole were nearly the same as those for the

nearer eastern unit; impacts at the more distant western unit (25 km or more) were lower. Base case impacts remain above 1 dv for all NO conversion scenarios. Impacts scale with the NO conversion rate assumed. The benefits of control with SNCR+DSI (ctrl15, the FIP proposal for BART) also scale with the NO conversion rate, but more slowly than for the base case, i.e. they are less sensitive to the conversion assumption. Benefits at the eastern unit remain at least 0.3 dv, even for the unrealistically low 10% conversion assumption. Benefits at the western unit are lower, but remain at least 0.2 dv, even for the 10% assumption. For PNG (ctrl13, the FIP proposal for better-than-BART alternative), benefits also scale up slightly with the NO conversion rate for the western unit, but seem relatively independent of the assumption for the eastern unit. The benefits of PNG remain are a bit less than double those of SNCR+DSI, and are above 0.6 dv for all NO conversion rates and all portions of Saguaro NP. **Conclusion**These results show that the FIP's proposed BART determination remains sound despite any concern

over NO conversion rate: the visibility improvement from BART is substantial. The finding that PNG gives better visibility improvement than proposed BART also remains sound regardless of the NO conversion assumed.10% 25% 50% 75% 100% 10% 25% 50% 75% 100% 10% 25% 50% 75% 100% base: base case ctrl13: PNG ctrl15: SNCR+DSI both units 1.98 2.30 2.74 3.14 3.40 0.86 1.10 1.56 1.97 2.35 1.66 1.91 2.32 2.63 2.92 east unit 1.98 2.30 2.72 3.04 3.37 0.86 1.10 1.55 1.92 2.26 1.66 1.91 2.27 2.57 2.88 west unit 1.27 1.53 1.93 2.19 2.56 0.52 0.71 1.06 1.36 1.67 1.07 1.27 1.56 1.83 2.12 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5impact,deciviews(dv) 

# Ef**fe ct of NO** 

**- to** 

**- NO2 % Con** **version Rate** 

**TEP Sundt Visibility Impact on Saguar** **o NP E ast and W** **est Portions (vm8b,** **22nd high in '01** 

**- '03),** **EP A RH FIP NPRM Jan. 2014** 10% 25% 50% 75% 100% 10% 25% 50% 75% 100% 10% 25% 50% 75% 100% base: base case ctrl13: PNG ctrl15: SNCR+DSI both units 1.12 1.21 1.18 1.17 1.06 0.32 0.40 0.42 0.51 0.49 east unit 1.12 1.21 1.16 1.12 1.11 0.32 0.40 0.44 0.47 0.49 west unit 0.75 0.82 0.87 0.83 0.88 0.20 0.26 0.37 0.36 0.44 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4**i m** **p a** **c t** **, d** **e c** **i v** **i e** **w s** **( d** **v )**  

# Ef**fe ct of NO** 

**- to** 

**- NO2 % Con** **version Rate**  **Benefit of Contr ol on TEP Sundt in Saguar** **o NP E ast and W** **est Portions (vm8b,** **22nd high in '01** 

**- '03),** **EP A RH FIP NPRM Jan. 2014** **TEP Sundt, AZ RH FIP NPRM**

Pivot table, rearranges data in 'ddv_table_n822_Sundt_NOxconvset' sheet, and is basis for pivot chart in 'Impacts' sheet.

**Sum of 22nd '01-'03 Saguaro portion**  **Scenario both units**  **east unit west unit**  **base: base case** 10% 1.98 1.98 1.27 25% 2.30 2.30 1.53 50% 2.74 2.72 1.93 75% 3.14 3.04 2.19 100% 3.40 3.37 2.56 **ctrl13: PNG** 10% 0.86 0.86 0.52 25% 1.10 1.10 0.71 50% 1.56 1.55 1.06 75% 1.97 1.92 1.36 100% 2.35 2.26 1.67 **ctrl15: SNCR+DSI** 10% 1.66 1.66 1.07 25% 1.91 1.91 1.27 50% 2.32 2.27 1.56 75% 2.63 2.57 1.83 100% 2.92 2.88 2.12

**Benefit of Control** Saguaro portion Control Scenario NO conversion rate both units east unit west unit base: base case 10%

25% 50% 75% 100% ctrl13: PNG 10% 1.12 1.12 0.75

25% 1.21 1.21 0.82 50% 1.18 1.16 0.87 75% 1.17 1.12 0.83 100% 1.06 1.11 0.88 ctrl15: SNCR+DSI 10% 0.32 0.32 0.20

25% 0.40 0.40 0.26 50% 0.42 0.44 0.37 75% 0.51 0.47 0.36 100% 0.49 0.49 0.44Pivot table, rearranges data in 'ddv_table_n822_Sundt_NOxconvset' sheet, and is basis for pivot chart in 'Impacts' sheet.**TEP Sundt at various NO-to-NO2 Conversion Rates, Arizona RH FIP, January 2014**

Results extracted from CALPOST.LST files (See "filegroup") 2001 2002 ddv_n8 ddv_n8

scenario NOx

conversi area portion fac scen mvsbg area year filegroup 8th 2001 8th 2002 base: base case 100% both units sundt base vm8b saguboth mult ct_sundt_baserf_vm8b_saguboth_2001.lst 3.37 3.254 base: base case 100% east unitsundt base vm8b sagueast mult ct_sundt_baserf_vm8b_sagueast_2001.lst 3.37 3.039 base: base case 100%west unitsundt base vm8b saguwest mult ct_sundt_baserf_vm8b_saguwest_2001.lst 2.556 2.272 ctrl13: PNG 100% both units sundt ctrl13 vm8b saguboth mult ct_sundt_ctrl13_vm8b_saguboth_2001.lst 2.506 2.224 ctrl13: PNG 100% east unitsundt ctrl13 vm8b sagueast mult ct_sundt_ctrl13_vm8b_sagueast_2001.lst 2.506 2.198 ctrl13: PNG 100%west unitsundt ctrl13 vm8b saguwest mult ct_sundt_ctrl13_vm8b_saguwest_2001.lst 1.709 1.55 ctrl15: SNCR+DSI 100% both units sundt ctrl15 vm8b saguboth mult ct_sundt_ctrl15_vm8b_saguboth_2001.lst 3.036 2.892 ctrl15: SNCR+DSI 100% east unitsundt ctrl15 vm8b sagueast mult ct_sundt_ctrl15_vm8b_sagueast_2001.lst 3.036 2.692 ctrl15: SNCR+DSI 100%west unitsundt ctrl15 vm8b saguwest mult ct_sundt_ctrl15_vm8b_saguwest_2001.lst 2.116 1.961 base: base case 10% both units sundt base-ns10 vm8b saguboth mult ct_sundt_base-ns10_vm8b_saguboth_2001.lst 1.851 1.944 base: base case 10% east unitsundt base-ns10 vm8b sagueast mult ct_sundt_base-ns10_vm8b_sagueast_2001.lst 1.851 1.944 base: base case 10%west unitsundt base-ns10 vm8b saguwest mult ct_sundt_base-ns10_vm8b_saguwest_2001.lst 1.339 1.154 base: base case 25% both units sundt base-ns25 vm8b saguboth mult ct_sundt_base-ns25_vm8b_saguboth_2001.lst 2.221 2.118 base: base case 25% east unitsundt base-ns25 vm8b sagueast mult ct_sundt_base-ns25_vm8b_sagueast_2001.lst 2.221 2.117 base: base case 25%west unitsundt base-ns25 vm8b saguwest mult ct_sundt_base-ns25_vm8b_saguwest_2001.lst 1.531 1.307 base: base case 50% both units sundt base-ns50 vm8b saguboth mult ct_sundt_base-ns50_vm8b_saguboth_2001.lst 2.613 2.417 base: base case 50% east unitsundt base-ns50 vm8b sagueast mult ct_sundt_base-ns50_vm8b_sagueast_2001.lst 2.613 2.384 base: base case 50%west unitsundt base-ns50 vm8b saguwest mult ct_sundt_base-ns50_vm8b_saguwest_2001.lst 1.811 1.648 base: base case 75% both units sundt base-ns75 vm8b saguboth mult ct_sundt_base-ns75_vm8b_saguboth_2001.lst 2.977 2.921 base: base case 75% east unitsundt base-ns75 vm8b sagueast mult ct_sundt_base-ns75_vm8b_sagueast_2001.lst 2.977 2.655 base: base case 75%west unitsundt base-ns75 vm8b saguwest mult ct_sundt_base-ns75_vm8b_saguwest_2001.lst 2.187 2.005 ctrl13: PNG 10% both units sundt ctrl13-ns10 vm8b saguboth mult ct_sundt_ctrl13-ns10_vm8b_saguboth_2001.lst 0.757 0.816 ctrl13: PNG 10% east unitsundt ctrl13-ns10 vm8b sagueast mult ct_sundt_ctrl13-ns10_vm8b_sagueast_2001.lst 0.757 0.816 ctrl13: PNG 10%west unitsundt ctrl13-ns10 vm8b saguwest mult ct_sundt_ctrl13-ns10_vm8b_saguwest_2001.lst 0.534 0.478 ctrl13: PNG 25% both units sundt ctrl13-ns25 vm8b saguboth mult ct_sundt_ctrl13-ns25_vm8b_saguboth_2001.lst 1.126 1.023 ctrl13: PNG 25% east unitsundt ctrl13-ns25 vm8b sagueast mult ct_sundt_ctrl13-ns25_vm8b_sagueast_2001.lst 1.126 1.018 ctrl13: PNG 25%west unitsundt ctrl13-ns25 vm8b saguwest mult ct_sundt_ctrl13-ns25_vm8b_saguwest_2001.lst 0.677 0.664 ctrl13: PNG 50% both units sundt ctrl13-ns50 vm8b saguboth mult ct_sundt_ctrl13-ns50_vm8b_saguboth_2001.lst 1.714 1.387 ctrl13: PNG 50% east unitsundt ctrl13-ns50 vm8b sagueast mult ct_sundt_ctrl13-ns50_vm8b_sagueast_2001.lst 1.714 1.379 ctrl13: PNG 50%west unitsundt ctrl13-ns50 vm8b saguwest mult ct_sundt_ctrl13-ns50_vm8b_saguwest_2001.lst 1.086 0.958 ctrl13: PNG 75% both units sundt ctrl13-ns75 vm8b saguboth mult ct_sundt_ctrl13-ns75_vm8b_saguboth_2001.lst 2.23 1.817 ctrl13: PNG 75% east unitsundt ctrl13-ns75 vm8b sagueast mult ct_sundt_ctrl13-ns75_vm8b_sagueast_2001.lst 2.23 1.796 ctrl13: PNG 75%west unitsundt ctrl13-ns75 vm8b saguwest mult ct_sundt_ctrl13-ns75_vm8b_saguwest_2001.lst 1.409 1.264 ctrl15: SNCR+DSI 10% both units sundt ctrl15-ns10 vm8b saguboth mult ct_sundt_ctrl15-ns10_vm8b_saguboth_2001.lst 1.608 1.647 ctrl15: SNCR+DSI 10% east unitsundt ctrl15-ns10 vm8b sagueast mult ct_sundt_ctrl15-ns10_vm8b_sagueast_2001.lst 1.608 1.647 ctrl15: SNCR+DSI 10%west unitsundt ctrl15-ns10 vm8b saguwest mult ct_sundt_ctrl15-ns10_vm8b_saguwest_2001.lst 1.093 0.969 ctrl15: SNCR+DSI 25% both units sundt ctrl15-ns25 vm8b saguboth mult ct_sundt_ctrl15-ns25_vm8b_saguboth_2001.lst 1.914 1.865 ctrl15: SNCR+DSI 25% east unitsundt ctrl15-ns25 vm8b sagueast mult ct_sundt_ctrl15-ns25_vm8b_sagueast_2001.lst 1.914 1.81 ctrl15: SNCR+DSI 25%west unitsundt ctrl15-ns25 vm8b saguwest mult ct_sundt_ctrl15-ns25_vm8b_saguwest_2001.lst 1.274 1.164 ctrl15: SNCR+DSI 50% both units sundt ctrl15-ns50 vm8b saguboth mult ct_sundt_ctrl15-ns50_vm8b_saguboth_2001.lst 2.317 2.082 ctrl15: SNCR+DSI 50% east unitsundt ctrl15-ns50 vm8b sagueast mult ct_sundt_ctrl15-ns50_vm8b_sagueast_2001.lst 2.317 2.035 ctrl15: SNCR+DSI 50%west unitsundt ctrl15-ns50 vm8b saguwest mult ct_sundt_ctrl15-ns50_vm8b_saguwest_2001.lst 1.546 1.435 ctrl15: SNCR+DSI 75% both units sundt ctrl15-ns75 vm8b saguboth mult ct_sundt_ctrl15-ns75_vm8b_saguboth_2001.lst 2.682 2.487 ctrl15: SNCR+DSI 75% east unitsundt ctrl15-ns75 vm8b sagueast mult ct_sundt_ctrl15-ns75_vm8b_sagueast_2001.lst 2.682 2.372 ctrl15: SNCR+DSI 75%west unitsundt ctrl15-ns75 vm8b saguwest mult ct_sundt_ctrl15-ns75_vm8b_saguwest_2001.lst 1.83 1.7512003 '01-'03 '01-'03 2001 2002 2003 '01-'03 2001 2002 2003 '01-'03

ddv_n8 avg mrg22 n_ddv>0.5 n_ddv>0.5 n_ddv>0.5 sum n_ddv>1 n_ddv>1 n_ddv>1 sum

8th 2003 avg '01-

'03 8th 22nd '01-

'03 2001

#days>0.5 2002

#days>0.5 2003

#days>0.5 '01-'03

#days>0.5 2001

#days>1 2002

#days>1 2003

#days>1 '01-'03

#days>1 3.462 3.362 3.403 233 240 208 681 156 156 131 443 3.462 3.290333 3.371 150 178 144 472 94 112 88 294 2.741 2.523 2.556 109 89 93 291 70 50 54 174 2.259 2.329667 2.346 177 180 154 511 74 91 72 237 2.252 2.318667 2.259 108 131 103 342 42 66 43 151 1.67 1.643 1.672 83 58 64 205 34 25 30 89 2.894 2.940667 2.915 215 219 195 629 122 130 106 358 2.858 2.862 2.881 137 164 135 436 71 93 67 231 2.343 2.14 2.116 98 75 79 252 56 39 45 140 2.126 1.973667 1.981 166 155 145 466 45 60 49 154 2.126 1.973667 1.981 105 112 97 314 28 47 32 107 1.272 1.255 1.272 71 49 61 181 18 13 17 48 2.516 2.285 2.304 180 180 164 524 63 80 73 216 2.516 2.284667 2.304 109 128 108 345 36 63 45 144 1.555 1.464333 1.531 81 60 71 212 29 17 29 75 2.861 2.630333 2.739 203 209 186 598 100 112 94 306 2.861 2.619333 2.717 129 154 127 410 58 78 61 197 1.998 1.819 1.927 92 71 79 242 45 34 39 118 3.178 3.025333 3.139 223 225 203 651 133 129 116 378 3.178 2.936667 3.041 144 166 140 450 80 93 76 249 2.358 2.183333 2.187 102 80 87 269 60 40 47 147 0.888 0.820333 0.86 29 46 31 106 4 2 6 12 0.888 0.820333 0.86 20 40 22 82 4 2 6 12 0.505 0.505667 0.522 9 6 9 24 0 0 0 0 1.123 1.090667 1.099 62 77 56 195 9 10 12 31 1.123 1.089 1.099 37 62 34 133 9 9 12 30 0.763 0.701333 0.709 25 15 22 62 0 1 0 1 1.575 1.558667 1.564 107 124 102 333 27 34 33 94 1.575 1.556 1.554 65 89 64 218 18 28 24 70 1.086 1.043333 1.056 46 36 43 125 9 6 9 24 1.97 2.005667 1.97 149 153 135 437 52 66 54 172 1.922 1.982667 1.922 92 112 90 294 29 51 31 111 1.361 1.344667 1.361 65 47 55 167 23 15 23 61 1.779 1.678 1.661 121 120 114 355 27 36 28 91 1.779 1.678 1.661 72 88 70 230 17 30 20 67 1.095 1.052333 1.07 52 34 47 133 10 6 8 24 1.967 1.915333 1.908 159 147 132 438 45 57 41 143 1.967 1.897 1.908 96 107 85 288 26 45 26 97 1.343 1.260333 1.274 70 45 55 170 19 12 15 46 2.332 2.243667 2.315 183 179 160 522 67 89 68 224 2.332 2.228 2.273 110 128 105 343 37 65 40 142 1.702 1.561 1.557 85 60 67 212 31 24 29 84 2.628 2.599 2.628 203 201 182 586 97 112 91 300 2.628 2.560667 2.571 125 146 120 391 56 78 56 190 2.009 1.863333 1.83 93 69 76 238 44 34 37 115