**Table 1.a. SO2 Rankings (1- & 3-hr averaging periods)**

SO2 Issue/Op Boiler Coal Quality Capacity Emissions or Limits* Period Control Facility Name Unit StatusPermit # Date Type Year %S (Btu/lb)(lb/mmBtu)Year MW Total (mmBtu/hr)(lb/mmBtu)(lb/hr)(lb/MW)(hr) Type (%) Navajo 3operating AZ PC 2000 0.53 10919 0.9222001 803 9216 0.094 1912 3 WLS 89.7% Navajo 1 operating AZ PC 2000 0.53 10919 0.9222000 803 9100 0.06413157 3 WLS 92.8% Navajo 2 operating AZ PC 2000 0.53 10919 0.9222001 803 9614 0.050 3195 3 WLS 94.2% LS Power-White Pine draft permit NV PC 0.3 8200 0.640 3x530 1590 15648 0.089 1386 0.87 3 LSD 86.2% Newmont Nevada issuedNV-00365/5/2005 PC 0.45 8400 0.938 200 200 2030 0.095 193 0.96 3 LSD 89.9% Basin Electric--Dry Fork permit WY 10/15/07 PC 0.47 7800 1.054 385 385 3801 0.100 380 0.99 3 LSD 90.5% Basin Electric--NextGen application SD PC 0.50 7968 1.098 700 700 7000 3 WAS LS Power-White Pine draft permit NV PC 0.66 8200 1.409 3x530 1590 15648 0.089 1386 0.87 3 LSD 93.7% Sithe-Desert Rock permit EPA 7/31/2008 PC 0.82 8910 1.611 1500 1500 13300 0.092 1224 0.82 3 WLS 94.3% Sierra Pacific-Ely application NV PC 0.8 8100 1.728 2x750 1500 17420 0.080 1394 0.93 3 LSD 95.4% AMP-Ohio application OH PC 1.0 10000 1.75 2x480 960 10382 0.24 2492 3 WLS 86.3% Black Hills Pwr-Wygen 2 supercededWY-00529/25/2002 PC 1.20 7950 2.642 500 5146 0.150 772 3 LSD 94.3% Black Hills Pwr-WYGEN 2 issued WY 7/11/2005 PC 1.20 7950 2.642 100 1300 0.120 156 3 LSD 95.5% Black Hills Pwr-WYGEN 3 issued WY 2/5/2007 PC 1.20 7950 2.642 100 1300 0.120 156 3 LSD 95.5% Sithe-Toquop application NV PC 1.4 8215 2.982 750 750 6048 0.090 484 0.65 3 WLS 97.3% ODEC-Cypress Creek application VA PC 1.8 11500 3.0 2x750 1500 14020 0.13 1800 1.20 3 WLS 95.7% FPL-Glades application FL PC 1.98 12324 3.053 2x980 1960 17400 0.065 1131 0.58 3 WLS 97.9% Conemaugh 2 operating PA PC 1997 2.22 12532 3.3661997 936 936 0.178 3 WLS 94.7% Longview Power issued WV 3/1/2004 PC 2.5 11750 4.043 600 600 6114 0.150 917 3 WLS 96.3% Cash Creek application KY DB-PC 2.55 11176 4.335 2x500 1000 9652 0.12 1158 1.16 3 WLS 97.2% Rocky Mtn Pwr-Hardin issuedMT-00278/11/2002 PC 113 113 1 LSD Bull Mountain-Roundup issued MT 1/31/2003 PC 2x390 780 1 LSD Bull Mountain-Roundup issued MT 1/31/2003 PC 2x390 780 3 LSD Prairie State Gen pre-ap IL PC 2x750 1500 3 WLS Two Elk Expansion application WY PC TXU-Hazelbrook application PA PC TXU-Shamokin application PA PC Santee Cooper Cross 3&4 issuedSC-01042/5/2004 PC 2x600 1200 3 WLS * Actual emissions from existing sources or proposed or permited limits for new sourcesTable 1.b. SO2 Rankings (24-hr averaging period) SO2 Issue/Op Boiler Coal Quality Capacity Emissions or Limits* Period Control Facility Name Unit StatusPermit # Date Type Year %S (Btu/lb)(lb/mmBtu)Year MW Total (mmBtu/hr)(lb/mmBtu)(lb/hr)(lb/MW)(hr) Type (%) Navajo 2 operating AZ PC 2000 0.53 10919 0.9222001 803 9072 0.086 724 24 WLS 90.7% Newmont Nevada issuedNV-00365/5/2005 PC 0.45 8400 0.938 200 200 2030 0.065 132 0.66 24 LSD 93.1% LS Power-White Pine draft permit NV PC 0.3 8200 0.640 3x530 1590 15648 0.065 1017 0.64 24 LSD 89.8% LS Pwr--High Plains 1 application CO PC 0.46 8200 0.982 600 600 6155 0.065 400 0.67 24 LSD 93.4% Basin Electric--Dry Fork permit WY 10/15/07 PC 0.47 7800 1.054 385 385 3801 0.100 380 0.99 24 LSD 90.5% Basin Electric--NextGen application SD PC 0.50 7968 1.098 700 700 7000 24 WAS Intermountain Power Project 3 issuedUT-0065 10/15/04W-DB-PC 0.75 11193 1.273 950 9050 0.100 905 0.95 24 WLS 92.1% LS Power-White Pine draft permit NV PC 0.66 8200 1.409 3x530 1590 15648 0.089 1386 0.87 24 LSD 93.7% LS Pwr--High Plains 1 application CO PC 0.66 8200 1.409 600 600 6155 0.090 554 0.92 24 LSD 93.6% Colstrip 3operating MT 9/11/1979 PC 2000 0.75 8487 1.5462000 778 8659 0.121 921 24 WLS 92.2% Colstrip 3operating MT 9/11/1979 PC 2000 0.75 8487 1.5462001 778 8767 0.119 994 24 WLS 92.3% Colstrip 4 operating MT 9/11/1979 PC 2000 0.75 8487 1.5462000 778 9388 0.110 895 24 WLS 92.9% Sithe-Desert Rock permit EPA 7/31/2008 PC 0.82 8910 1.611 1500 1500 13300 0.060 798 0.53 24 WLS 96.3% Sierra Pacific-Ely application NV PC 0.8 8100 1.728 2x750 1500 17420 0.060 1045 0.70 24 LSD 96.5% AMP-Ohio application OH PC 1 10000 1.75 2x480 960 10382 0.18 1910 24 WLS 89.5% Black Hills Pwr-Wygen2 supercededWY-005209/25/02 PC 1.20 7950 2.642 500 5146 0.150 772 24 LSD 94.3% Black Hills Pwr-WYGEN 2 issued WY 7/11/2005 PC 1.20 7950 2.642 100 1300 0.120 156 24 LSD 95.5% Black Hills Pwr-WYGEN 3 issued WY 2/5/2007 PC 1.20 7950 2.642 100 1300 0.120 156 24 LSD 95.5% Sithe-Toquop application NV PC 1.4 8215 2.982 750 750 6048 0.060 363 0.48 24 WLS 98.0% ODEC-Cypress Creek application VA PC 1.8 11500 3.0 2x750 1500 14020 0.060 841 0.56 24 WLS 98.0% FPL-Glades application FL PC 1.98 12324 3.053 2x980 1960 17400 0.040 696 0.36 24 WLS 98.7% Mustang application NM PC 1.56 8647 3.157 300 300 3192 0.140 447 24 WLS 95.6% Longview Power issued WV 3/1/2004 PC 2.5 11750 4.043 600 600 6114 0.120 734 24 WLS 97.0% Cash Creek application KY DB-PC 2.55 11176 4.335 2x500 1000 9652 0.12 1158 1.16 24 WLS 97.2% Taylor application FL 3.46 7475 8.100 800 800 7475 0.055 411 0.51 24 WLS 99.3% Thoroughbred issuedKY-0084110/11/02 PC 2x750 1500 0.410 24 WLS Bull Mountain-Roundup issuedMT-002207/21/03 PC 2x390 780 0.120 24 LSD Sempra-Granite Fox pre-ap NV PC 725 1450 0.060 24 Rocky Mtn Pwr-Hardin issuedMT-00278/11/2002 PC 113 113 24 LSD LG&E-Trimble County pending KY PC 750 24 WLS Prairie State Gen pre-ap IL PC 2x750 1500 24 WLS Two Elk Expansion application WY PC TXU-Hazelbrook application PA PC TXU-Shamokin application PA PC LG&E-Trimble County pending KY PC 500 24 WLS * Actual emissions from existing sources or proposed or permited limits for new sourcesTable 1.c. SO2 Rankings (30-day averaging period) SO2 Issue/Op Boiler Coal Quality Capacity Emissions or Limits* Period Control Facility Name Unit StatusPermit # Date Type Year %S (Btu/lb)(lb/mmBtu)Year MW Total (mmBtu/hr)(lb/mmBtu)(lb/hr)(lb/MW)(hr) Type (%) Intermountain Pwr 2 operating UT mid-80s W-DB-PC2000 0.48 11817 0.7722000 820 9496 0.059 566 720 WLS 92.4% Navajo 1 operating AZ PC 2000 0.53 10919 0.9222000 803 8030 0.072 553 720 WLS 92.9% Navajo 3operating AZ PC 2000 0.53 10919 0.9222001 803 8949 0.064 487 720 WLS 93.2% Navajo 2 operating AZ PC 2000 0.53 10919 0.9222001 803 8563 0.044 323 720 WLS 95.5% Newmont Nevada issuedNV-00365/5/2005 PC 0.45 8400 0.938 200 200 2030 0.065 132 0.66720 LSD 93.1% LS Power-White Pine draft permit NV PC 0.3 8200 0.640 3x530 1590 15648 0.065 1017 0.64720 LSD 89.8% Intermountain Power Project 3 issuedUT-0065 10/15/04W-DB-PC 0.75 11193 1.273 950 9050 0.090 815 0.86720 WLS 92.9% LS Pwr--High Plains 1 application CO PC 0.46 8200 0.982 600 600 6155 0.065 400 0.67720 LSD 93.4% Two Elk Expansion application WY PC 0.5 8800 0.994 750 750 6285 0.10 629 0.84720 LSD 89.9% Basin Electric--Dry Fork permit WY 10/15/07 PC 0.47 7800 1.054 385 385 3801 0.075 285 0.74720 LSD 92.9% Basin Electric--NextGen application SD PC 0.50 7968 1.098 700 700 7000 720 WAS AES--Colorado 1 application CO PC 0.5 8100 1.080 640 640 5624 0.100 562 0.88720 LSD 90.7% LS Pwr--High Plains 1 application CO PC 0.66 8200 1.409 600 600 6155 0.090 554 720 LSD 93.6% LS Power-White Pine draft permit NV PC 0.66 8200 1.409 3x530 1590 15648 0.089 1386 0.87720 LSD 93.7% Colstrip 4 operating MT 9/11/1979 PC 0.75 8487 1.5462001 778 8815 0.093 807 720 WLS 94.4% Colstrip 4 operating MT 9/11/1979 PC 2000 0.75 8487 1.5462000 778 8747 0.091 761 720 WLS 94.5% Sithe-Desert Rock permit EPA 7/31/2008 PC 0.82 8910 1.611 1500 1500 13300 0.060 798 0.53720 WLS 96.3% Sierra Pacific-Ely application NV PC 0.8 8100 1.728 2x750 1500 17420 0.060 1045 0.70720 LSD 96.5% AMP-Ohio application OH PC 1 10000 1.75 2x480 960 10382 0.15 1557 720 WLS 91.4% Black Hills Pwr-WYGEN 2 issued WY 7/11/2005 PC 1.20 7950 2.642 100 1300 0.100 130 720 LSD 96.2% Black Hills Pwr-Wygen2 supercededWY-005209/25/02 PC 1.20 7950 2.642 500 5146 0.100 515 720 LSD 96.2%

Black Hills Pwr-WYGEN 3 issued WY 2/5/2007 PC 1.20 7950 2.642 100 1300 0.090 117 720 LSD 96.6% Sithe-Toquop application NV PC 1.4 8215 2.982 750 750 6048 0.060 363 0.48720 WLS 98.0% ODEC-Cypress Creek application VA PC 1.8 11500 3.0 2x750 1500 14020 0.060 841 0.56 24 WLS 98.0% FPL-Glades application FL PC 1.98 12324 3.053 2x980 1960 17400 0.040 696 0.36720 WLS 98.7% Mustang application NM PC 1.56 8647 3.157 300 300 3192 0.060 192 720 WLS 98.1% Mustang application NM PC 1.56 8647 3.157 300 300 3192 0.020 64 720 Airborne99.4% Longview Power issued WV 3/1/2004 PC 2.5 11750 4.043 600 600 6114 0.120 734 1.22720 WLS 97.0% Cash Creek application KY DB-PC 2.55 11176 4.335 2x500 1000 9652 0.12 1158 1.16720 WLS 97.2% Duke--Cliffside issued NC 1/29/2008 PC 3 9376 5.599 800 7850 0.120 942 1.18720 LSD 97.9% Taylor application FL 3.46 7475 8.100 800 800 7475 0.040 299 0.37720 WLS 99.5% Thoroughbred issuedKY-0084110/11/02 PC 2x750 1500 0.167 720 WLS Rocky Mtn Pwr-Hardin issuedMT-00278/11/2002 PC 113 113 0.140 720 LSD ODEC-Clover issuedVA-0181 04/29/91 PC 4317 0.100 720 WLS Springfield 2 issuedMO-006012/15/2004 PC 275 2724 0.095 258.8 720 Sempra-Granite Fox pre-ap NV PC 725 1450 0.060 720 Xcel-Comanche 3 issuedCO-005707/05/05 PC 750 Bull Mountain-Roundup (revised) issued MT 01/31/03 PC 2x390 780 720 LSD Hunter (Emery) 4application UT 2000 720 WLS LG&E-Trimble County pending KY PC 750 720 WLS Prairie State Gen pre-ap IL PC 2x750 1500 720 WLS TXU-Hazelbrook application PA PC TXU-Shamokin application PA PC * Actual emissions from existing sources or proposed or permited limits for new sourcesTable 1.d. SO2 Rankings (Annual averaging period) SO2 Issue/Op Boiler Coal Quality Capacity Emissions or Limits* Period Control Facility Name Unit StatusPermit # Date Type Year %S (Btu/lb)(lb/mmBtu)Year MW Total (mmBtu/hr)(lb/mmBtu)(lb/hr)(lb/MW)(hr) Type (%) Bonanza 1 operating UT 2/04/81 PC 2000 0.40 10008 0.6992000 400 400 4641 0.067 293 8760 WLS 91.9% Bonanza 1 operating UT 2/04/81 PC 2000 0.40 10008 0.6992001 400 400 4846 0.058 276 8760 WLS 93.0% Hunter (Emery) 3operating UT 1983 W-DB-PC2000 0.45 11784 0.7262000 495 4035 0.067 239 8760 WLS 92.5% Intermountain Pwr 1 operating UT mid-80s W-DB-PC2000 0.48 11817 0.7722001 820 8378 0.058 487 8760 WLS 93.2% Intermountain Pwr 2 operating UT mid-80s W-DB-PC2000 0.48 11817 0.7722001 820 9367 0.056 522 8760 WLS 93.2% Intermountain Pwr 1 operating UT mid-80s W-DB-PC2000 0.48 11817 0.7722000 820 9028 0.047 432 8760 WLS 94.2% Intermountain Pwr 2 operating UT mid-80s W-DB-PC2000 0.48 11817 0.7722000 820 9114 0.046 419 8760 WLS 94.4% Navajo 2 operating AZ PC 2000 0.53 10919 0.9222000 803 8261 0.058 458 8760 WLS 94.2% Navajo 3operating AZ PC 2000 0.53 10919 0.9222001 803 7501 0.053 396 8760 WLS 95.2% Navajo 1 operating AZ PC 2000 0.53 10919 0.9222000 803 7774 0.051 418 8760 WLS 95.2% Navajo 1 operating AZ PC 2000 0.53 10919 0.9222001 803 6544 0.040 243 8760 WLS 96.6% Navajo 1 operating AZ PC 2000 0.53 10919 0.9222000 803 7366 0.038 280 8760 WLS 96.5% Navajo 2 operating AZ PC 2000 0.53 10919 0.9222001 803 7837 0.035 270 8760 WLS 96.7% Newmont Nevada issuedNV-00365/5/2005 PC 0.45 8400 0.938 200 200 2030 0.065 132 0.668760 LSD 93.1% LS Power-White Pine draft permit NV PC 0.3 8200 0.640 3x530 1590 15648 0.065 1017 0.648760 LSD 89.8% LS Pwr--High Plains 1 application CO PC 0.46 8200 0.982 600 600 6155 0.065 400 0.678760 LSD 93.4% Two Elk Expansion application WY PC 0.5 8800 0.994 750 750 6285 0.10 629 720 LSD 89.9% Basin Electric--Dry Fork permit WY 10/15/07 PC 0.47 7800 1.054 385 385 3801 0.070 266 0.698760 LSD 93.4% Basin Electric--NextGen application SD PC 0.50 7968 1.098 700 700 7000 0.050 350 0.508760 WAS 95.4% AES--Colorado 1 application CO PC 0.5 8100 1.080 640 640 5624 0.100 562 8760 LSD 90.7% LS Pwr--High Plains 1 application CO PC 0.66 8200 1.409 600 600 6155 0.090 554 8760 LSD 93.6% LS Power-White Pine draft permit NV PC 0.66 8200 1.409 3x530 1590 15648 0.089 1386 0.878760 LSD 93.7% Colstrip 3operating MT 9/11/1979 PC 2000 0.75 8487 1.5462001 778 6497 0.104 657 8760 WLS 95.0% Colstrip 3operating MT 9/11/1979 PC 2000 0.75 8487 1.5462000 778 6506 0.100 651 8760 WLS 95.1% Colstrip 4 operating MT 9/11/1979 PC 2000 0.75 8487 1.5462000 778 6036 0.087 528 8760 WLS 96.4% Colstrip 4 operating MT 9/11/1979 PC 2000 0.75 8487 1.5462001 778 7738 0.086 666 8760 WLS 95.5%

BHP pre-ap NNEPA PC 0.82 8910 1.611 550 550 5111 0.060 307 8760 WLS 96.3% Sithe-Desert Rock permit EPA 7/31/2008 PC 0.82 8910 1.611 1500 1500 13300 0.056 757 0.508760 WLS 96.5% Sierra Pacific-Ely application NV PC 0.8 8100 1.728 2x750 1500 17420 0.060 1045 0.708760 LSD 96.5% AMP-Ohio application OH PC 1 10000 1.75 2x480 960 10382 0.15 1557 8760 WLS 91.4% Black Hills Pwr-WYGEN 2 issued WY 7/11/2005 PC 1.20 7950 2.642 100 1300 0.100 130 8760 LSD 96.2% Black Hills Pwr-Wygen2 supercededWY-005209/25/02 PC 1.20 7950 2.642 500 5146 0.100 515 720 LSD 96.2% Black Hills Pwr-WYGEN 3 issued WY 2/5/2007 PC 1.20 7950 2.642 100 1300 0.090 117 8760 LSD 96.6% Sithe-Toquop application NV PC 1.4 8215 2.982 750 750 6048 0.060 363 0.488760 WLS 98.5% ODEC-Cypress Creek application VA PC 1.8 11500 3.0 2x750 1500 14020 0.060 841 0.568760 WLS 98.0% FPL-Glades application FL PC 1.98 12324 3.053 2x980 1960 17400 0.040 696 0.368760 WLS 98.7% Mustang application NM PC 1.56 8647 3.157 300 300 3192 0.060 192 8760 WLS 98.1% Mustang application NM PC 1.56 8647 3.157 300 300 3192 0.020 64 8760Airborne99.4% Longview Power issued WV 3/1/2004 PC 2.5 11750 4.043 600 600 6114 0.095 581 8760 WLS 97.8% Cash Creek application KY DB-PC 2.55 11176 4.335 2x500 1000 9652 0.12 1158 1.168760 WLS 97.2% Harrison 2 operating WV DB-PC1997 3.40 12553 5.1461997 684 0.090 8760 WLS 98.2% Harrison 1 operating WV DB-PC1997 3.40 12553 5.1461997 684 0.090 8760 WLS 98.3% Harrison 3operating WV DB-PC1997 3.40 12553 5.1461997 684 0.087 8760 WLS 98.3% Duke--Cliffside issued NC 1/29/2008 PC 3 9376 5.599 800 7850 0.120 942 1.188760 LSD 97.9% Thoroughbred issuedKY-0084110/11/02 PC 2x750 1500 0.167 720 WLS Rocky Mtn Pwr-Hardin issuedMT-00278/11/2002 PC 113 113 0.140 8760 LSD ODEC-Clover issuedVA-0181 04/29/91 PC 4317 0.100 720 WLS Intermountain Power Project 3 issuedUT-0065 10/15/04W-DB-PC 950 0.090 720 WLS Sempra-Granite Fox pre-ap NV PC 725 1450 0.060 8760 Xcel-Comanche 3 issuedCO-005707/05/05 PC 750 Bull Mountain-Roundup issuedMT-002207/21/03 PC 2x390 780 8760 LSD Hunter (Emery) 4application UT 2000 8760 WLS LG&E-Trimble County pending KY PC 750 8760 WLS Prairie State Gen pre-ap IL PC 2x750 1500 8760 WLS Santee-Cooper-Cross 3&4 3&4 issuedSC-01042/5/2004 PC 2x600 1200 8760 WLS TXU-Hazelbrook application PA PC TXU-Shamokin application PA PC * Actual emissions from existing sources or proposed or permited limits for new sources

# Table 2.a. NOx Rankings (1, 3 & 24-hr averaging periods) **NOx** Issue/Op Boiler Capacity Emissions or Limits* Period Control Facility Name Unit Status Permit # Date Type MW Total (mmBtu/hr)(lb/mmBtu)(lb/hr)(lb/MW)(hr) Type (%) FPL-Glades application FL PC 2x980 1960 17400 0.05 847 0.4324 SCR 87.7% Cash Creek application KY DB-PC 2x500 1000 9652 0.05 483 0.4824 LNB/OFA/SCR 88.8% LG&E-Trimble County application KY PC 750 6942 0.05 348 0.4624 SCR 86.1% Mustang application NM PC 300 300 3192 0.060 192 0.6424 SCR 89.6% Sierra Pacific-Ely application NV PC 2x750 1500 17420 0.060 1045 0.7024 SCR 90.3% Sithe-Desert Rock permit EPA 7/31/2008 PC 2x750 1500 13300 0.060 798 0.5324 SCR 85.2% Sithe-Toquop application NV PC 750 750 6048 0.06 363 0.4824 SCR 86.3% Basin Elec--Dry Fork permit WY 10/15/07 PC 385 385 3801 0.050 190 0.4924 LNB/SCR 92.2% Newmont Nevada issued NV-00365/5/2005 PC 200 200 2030 0.067 136 0.6824 SCR 84.4% Bull Mountain-Roundup issued MT-002207/21/03 PC 2x390 780 0.07 0.0024 LNB/SCR LS Power-White Pine draft permit NV PC 3x530 1590 15648 0.07 1095 0.6924 SCR 88.5% LS Pwr--High Plains 1 application CO PC 600 600 6155 0.070 431 0.7224 SCR 88.5% Longview Power issued WV 03/01/04 PC 600 600 6114 0.080 489 0.8224 LNB/SCR 81.2% Basin Electric--NextGen application SD PC 700 700 7000 0.080 560 0.8024 LNB/OFA/SCR 82.3% AMP-Ohio 1&2application OH PC 2x480 960 10382 0.10 1038 1.0824 LNB/SCR 80.0% Duke--Cliffside issued NC 1/29/2008 PC 800 7850 0.150 1178 1.4724 SCR 71.9% Intermountain Power Project 3 issued UT-006510/15/04 W-DB-PC 950 633.5 0.6724 LNB/SCR Sempra-Granite Fox pre-ap NV PC 725 1450 0.0024 * Actual emissions from existing sources or proposed or permited limits for new sources

**Table 2.b NOx Rankings (720-hr averaging periods)**

**NOx** Issue/Op Boiler Capacity Emissions or Limits* Period Control Facility Name Unit Status Permit # Date Type MW Total (mmBtu/hr)(lb/mmBtu)(lb/hr)(lb/MW)(hr) Type (%) Mustang application NM PC 300 300 3192 0.010 32 0.11720 Airborne 98.3% FPL-Glades application FL PC 2x980 1960 17400 0.05 870 0.44720 SCR 87.7% Cash Creek application KY DB-PC 2x500 1000 9652 0.05 483 0.48720 LNB/OFA/SCR 88.8% Black Hills Pwr-WYGEN 3 issued WY 2/5/2007 PC 100 1300 0.05 65 0.65720 LNB/SCR 89.3% Basin Elec--Dry Fork permit WY 10/15/07 PC 385 385 3801 0.050 190 0.49720 LNB/SCR 92.2% Mustang application NM PC 300 300 3192 0.059 188 0.63720 SCR 89.8% Sithe-Toquop application NV PC 750 750 6048 0.060 363 0.48720 SCR 86.3% Sithe-Desert Rock permit EPA 7/31/2008 PC 2x750 1500 13300 0.050 681 0.45720 SCR 87.3% Sierra Pacific-Ely application NV PC 2x750 1500 17420 0.060 1045 0.70720 SCR 90.3% Newmont Nevada issued NV-00365/5/2005 PC 200 200 2030 0.067 136 0.68720 SCR 84.4% Bull Mountain-Roundup issued MT-002207/21/03 PC 2x390 780 0.07 0.00720 LNB/SCR ODEC-Cypress Creek application VA PC 2x750 1500 14020 0.070 981 0.65720 LNB/SCR 83.9% Intermountain Power Project 3 issued UT-006510/15/04 W-DB-PC 950 9050 0.07 0.00720 LNB/SCR Black Hills Pwr-Wygen2 supercededWY-005209/25/02 PC 500 5146 0.07 91 0.18720 LNB/SCR 85.0% AES--Colorado 1 application CO PC 640 640 5624 0.07 394 0.62720 SCR 88.7% Santee Cooper Cross 3&4 SC PC 2x600 1200 11400 0.07 798 0.67720 SCR 80.0% LS Power-White Pine draft permit NV PC 3x530 1590 15648 0.07 1095 0.69720 SCR 88.5% Longview Power issued WV 03/01/04 PC 600 600 6114 0.07 428 0.71720 LNB/SCR 83.6% LS Pwr--High Plains 1 application CO PC 600 600 6155 0.070 431 0.72720 SCR 88.5% AMP-Ohio 1&2application OH PC 2x480 960 10382 0.07 727 0.76720 LNB/SCR 86.0% Black Hills Pwr-WYGEN 2 issued WY 7/11/2005 PC 100 1300 0.07 91 0.91720 LNB/SCR 85.0% Thoroughbred issued KY-0084110/11/02 PC 2x750 1500 14892 0.08 0.00720 SCR Two Elk Expansion application WY PC 750 750 6285 0.08 503 0.67720 SCR 94.1% Springfield 2 issued MO-006012/15/2004 PC 275 2724 0.08 217.9 0.79720 SCR

# Rocky Mtn Pwr-Hardin issued MT-00278/11/2002 PC 113 113 1304 0.090 0.00720 SCR Duke--Cliffside issued NC 1/29/2008 PC 800 7850 0.070 800 1.00720 SCR 80.9% LG&E-Trimble County application KY PC 750 6942 0.00720 SCR Sempra-Granite Fox pre-ap NV PC 725 1450 0.00720 Hunter (Emery) 4 application UT PC 15000 #DIV/0!720 LNB/SCR Xcel-Comanche 3 issued CO-005707/05/05 PC 750 #DIV/0! * Actual emissions from existing sources or proposed or permited limits for new sources

**Table 2.c. NOx Rankings (8760-hr averaging periods)**

**NOx** Issue/Op Boiler Capacity Emissions or Limits* Period Control Facility Name Unit Status Permit # Date Type MW Total (mmBtu/hr)(lb/mmBtu)(lb/hr)(lb/MW)(hr) Type (%) Sithe-Desert Rock permit EPA 7/31/2008 PC 2x750 1500 13300 0.039 524 0.358760 SCR 90.2% Mustang application NM PC 300 300 3192 0.010 32 0.119760 Airborne 98.3% FPL-Glades application FL PC 2x980 1960 17400 0.050 870 0.448760 SCR 88% Cash Creek application KY DB-PC 2x500 1000 9652 0.050 483 0.488760LNB/OFA/SCR 88.8% ODEC-Cypress Creek application VA PC 2x750 1500 14020 0.050 701 0.478760 LNB/SCR 88.5% Sierra Pacific-Ely application NV PC 2x750 1500 17420 0.050 871 0.588760 SCR 91.9% Black Hills Pwr-WYGEN 3 issued WY 2/5/2007 PC 100 1300 0.050 65 0.658760 LNB/SCR 89.3% Basin Elec--Dry Fork permit WY 10/15/07 PC 385 385 3801 0.050 190 0.498760 LNB/SCR 92.2% Basin Electric--NextGen application SD PC 700 700 7000 0.050 350 0.508760LNB/OFA/SCR 88.9% Mustang application NM PC 300 300 3192 0.059 188 0.638760 SCR 89.8% Sithe-Toquop application NV PC 750 750 6048 0.060 363 0.488760 SCR 0.86 BHP pre-ap EPA PC 550 550 5111 0.060 307 0.568760 LNB/SCR 89.3% Longview Power issued WV 03/01/04 PC 600 600 6114 0.065 397 0.668760 LNB/SCR 84.7% Newmont Nevada issued NV-00365/5/2005 PC 200 200 2030 0.067 136 0.688760 SCR 84.4% Duke--Cliffside issued NC 1/29/2008 PC 800 7850 0.070 550 0.698760 SCR 86.9% Bull Mountain-Roundup issued MT-002207/21/03 PC 2x390 780 0.070 0.0024 LNB/SCR Intermountain Power Project 3 issued UT-006510/15/04 W-DB-PC 950 9050 0.070 0.00720 LNB/SCR AES--Colorado 1 application CO PC 640 640 5624 0.070 394 0.628760 SCR 88.7% LS Power-White Pine draft permit NV PC 3x530 1590 15648 0.07 1095 0.698760 SCR 88.5% LS Pwr--High Plains 1 application CO PC 600 600 6155 0.070 431 0.728760 SCR 88.5% Black Hills Pwr-Wygen2 supercededWY-005209/25/02 PC 500 500 5146 0.070 360 0.728760 LNB/SCR 85.0% AMP-Ohio 1&2application OH PC 2x480 960 10382 0.070 727 0.768760 LNB/SCR 86.0% Black Hills Pwr-WYGEN 2 issued WY 7/11/2005 PC 100 1300 0.070 91 0.918760 LNB/SCR 85.0% Thoroughbred issued KY-0084110/11/02 PC 2x750 1500 14892 0.080 0.00720 SCR Two Elk Expansion application WY PC 750 750 6285 0.080 503 0.678760 SCR 94.1% Springfield 2 issued MO-006012/15/2004 PC 275 2724 0.080 217.9 0.798760 SCR Rocky Mtn Pwr-Hardin issued MT-00278/11/2002 PC 113 113 1304 0.090 0.00720 SCR LG&E-Trimble County application KY PC 750 0.008760 SCR Santee Cooper Cross 3&4 issued SC-01042/5/2004 PC 2x600 1200 0.008760 SCR Sempra-Granite Fox pre-ap NV PC 725 1450 0.008760 Xcel-Comanche 3 issued CO-005707/05/05 PC 750 0.00 Hunter (Emery) 4 application UT PC #DIV/0!8760 LNB/SCR TXU-Hazelbrook application PA PC #DIV/0! TXU-Shamokin application PA PC #DIV/0! * Actual emissions from existing sources or proposed or permited limits for new sources

# Table 3. PM10 Rankings PM10 Emission Limits Issue Boiler Capacity Filterable Period Control Total Facility Name/Location Unit Status Permit # Date Type MW Total (mmBtu/hr)(lb/mmBtu)(lb/hr) (lb/MW) (hr) Type (%)(lb/mmBtu)(lb/hr) Sithe-Desert Rock permit EPA 7/31/2008 PC 750 1500 13300 0.010 132.8 0.09 3 FF 0.020265.6 Sierra Pacific-Ely application NV PC 2x750 1500 17420 0.010 174.2 0.12 FF 0.020 348 Sithe-Toquop application NV PC 750 750 6048 0.010 60 0.08 FF 0.030 181 Two Elk Expansion application WY PC 750 750 6285 0.010 63 0.08 FF Mustang application NM PC 300 300 3192 0.012 38.3 0.13 FF 0.01857.5 ODEC-Cypress Creek application VA PC 2x750 1500 14020 0.012 168 0.11 3 FF 0.03 421 Basin Electric--Dry Fork permit WY 10/15/07 PC 385 385 3801 0.012 45.6 0.12 3 FF 0.01868.4 Basin Electric--NextGen application SD PC 700 700 7000 0.012 84 0.12 3 FF 0.033 231 Duke--Cliffside isued NC 1/29/2008 PC 800 7850 0.012 94 0.12 6 FF 0.018141.3 AES--Colorado 1 application CO PC 640 640 5624 0.012 67 0.11 3 FF 0.020114.0 Newmont Nevada issued NV-00365/5/2005 PC 200 200 2030 0.012 24.4 0.1224 FF 0.03877.1 Intermountain Power Project 3 issued UT-0065 10/15/04 PC 950 950 0.012 0.00 3 FF Black Hills Pwr-WYGEN 3 issued WY 2/5/2007 PC 100 1300 0.012 15.6 0.16 3 FF BHP pre-ap NEPA PC 550 550 5111 0.012 61.3 0.11 3 FF Black Hills Pwr-Wygen2 supercededWY-005209/25/02 PC 500 5148 0.012 0.00 FF 99.9% 61.7 LS Pwr--High Plains 1 application CO PC 600 600 6155 0.012 74 0.12 3 FF FPL-Glades application FL PC 2x980 1960 17400 0.013 226 0.12 FF 0.030 522 LG&E-Cash Creek application KY PC 2x500 1000 9652 0.015 144.8 0.14 3 FF 0.018173.7 AMP-Ohio application OH PC 2x480 960 10382 0.015 156 0.16 FF 0.025 260 LS Power-White Pine draft permit NV PC 3x530 1590 15648 0.015 235 0.15 3 FF 0.038 595 Rocky Mtn Pwr-Hardin issued MT-00278/11/2002 PC 113 113 0.015 0.00 3 WLS Bull Mountain-Roundup issued MT-002207/21/03 PC 390 780 7474 0.015 0.00 3 FF Nevada Pwr issued NV-0001 04/13/81 PC 560 0.015 0.00 99.8% Thoroughbred issued KY-0084110/11/02 PC 2x750 1500 0.018 0.00 ESP Northhampton Gen. Co. operatingPA-0134 04/14/95 FB 1146 #DIV/0! 1 FF 0.0088 Longview Power issued WV 03/01/04 PC 600 600 6114 0.00 6 FF 0.018110.1 Springfield 2 issued MO-006012/15/2004 PC 275 2724 0.00 FF 0.01849.0 Sempra-Granite Fox pre-ap NV PC 725 1450 0.00 FF 0.022 Xcel-Comanche 3 issued CO-005707/05/05 PC 750 0.00 LG&E-Trimble County application KY PC 750 0.00 3 ESP Hunter (Emery) 4 application UT PC #DIV/0!

# Table 4. H2SO4H2SO4 Issue Boiler Capacity Emission Limits Period Control

Facility Name/Location Unit Status Permit # Date Type MW Total (mmBtu/hr)(lb/mmBtu)(lb/hr)(lb/MW)(hr) Type (%) Newmont Nevada issued NV 5/5/2005 PC 200 200 2030 0.00102 2.1 0.01024 LSD Cash Creek application KY DB-PC 2x500 1000 9652 0.00133 12.8 0.013720 WLS Basin Electric--Dry

Fork permit WY######## PC 385 385 3801 0.0025 9.5 0.025720 CDS Black Hills Pwr-WYGEN 3 issued WY 2/5/2007 PC 100 1300 0.0027 3.5 0.035720 LSD Mustang application NM PC 300 300 3192 0.00324 10.3 0.03424 WLS LS Power-White Pine draft permit NV PC 3x530 1590 15648 0.0034 53 0.033 3 LS Pwr--High Plains 1 application CO PC 600 600 6155 0.0034 21 0.035 3 **LSD** Black Hills Pwr-Wygen2 issued WY PC 100 1300 0.00370 4.8 0.048720 LSD

# Table 5. Hg Hg Issue Boiler Capacity Emission Limits Period Control

Facility Name/Location Unit Status Permit # Date Type MW Total (mmBtu/hr)(lb/mmBtu)(lb/(MWh)(lb/yr)(hr) Type (%) FPL-Glades application FL PC 2x980 1960 17400 1.1E-069.9E-06 170 PAC ODEC-Cypress Creek application VA PC 2x750 1500 140201.71E-061.6E-05 2108760 PAC Sithe-Desert Rock permit EPA7/31/2008 PC 750 1500 13300 2.3E-062.0E-05 263 LS Power-White Pine draft permit NV PC 3x530 1590 15648 2.0E-062.0E-05 279 Newmont Nevada issued NV 5/5/2005 PC 200 200 2030 2.0E-062.0E-05 35 PAC Longview Power issued WV 3/1/2004 PC 600 600 6114 2.4E-062.4E-05 128 3 Cash Creek application KY DB-PC 2x500 1000 96523.71E-063.6E-05 314 LS Pwr--High Plains 1 application CO PC 600 600 6155 5.1E-065.2E-05 273 Basin Electric--Dry Fork permit WY######## PC 385 385 3801 2.6E-089.7.E-05 3278760 PAC