Table 1. Boiler Design. Control Equipment LNB SCR ACI Dry-FGD BH. LNB SCR Wet-FGD ESP. (30% Pet Coke) LNB SCR BH Wet-FGD. (single coal supply)

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1 Table 1 Facility Name Mid American Energy CBEC #4 Santee Cooper Cross Generating Station Units #3 &4 Longview Power, LLC Wisconsin Public Service Corporation Weston Unit #4 Council Bluffs, IA 7,675 mmbtu/hr June 17, 2003 <0.625 lb S/mmBtu 790 MW Pineville, SC February 5, ,700 mmbtu/hr 660 MW Maidsville, WV Rothschild, WI 6,114 mmbtu/hr 500 MW March 2, 2004 October 19, 2004 Coal + Pet Coke (up to 30% by wt) <1.4 lb SO2/mmBtu SC SC ( or ) HAP Limit Units/Averaging Time (30% Pet Coke) TSM PM CO Beryllium Antimony Arsenic Cadmium Chromium Cobalt Manganese Nickel Selenium Beryllium 1.7E-06 lb/mmbtu (3-hr average) provides for Hg optimization study to determine achievable Hg limit. 1.7 lb/tbtu (3-hr average) lb/gwh (3-hr average) lb/mmbtu (3-hr average) 1.0E-04 lb/mmbtu (3-hr average) lb/mmbtu (3-hr average) lb/mmbtu (daily average) 3.6E-06 lb/mmbtu (3-hr average) 3.6 lb/tbtu (3-hr average) lbs/gwh (3-hr average) 8.44E-07 lb/mmbtu (3-hr average) 2.40E-03 lb/mmbtu (3-hr average) 3.00E-04 lb/mmbtu (3-hr average) 7.00E-07 lb/mmbtu (3-hr average) 1.60E-05 lb/mmbtu (3-hr average) 2.10E-06 lb/mmbtu (3-hr average) 1.40E-05 lb/mmbtu (3-hr average) 4.00E-06 lb/mmbtu (3-hr average) 2.00E-05 lb/mmbtu (3-hr average) 1.10E-05 lb/mmbtu (3-hr average) 5.20E-05 lb/mmbtu (3-hr average) 1.46E-02 lb/hr (3-hr average) Monthly compliance demonstration based on coal sampling and stack testing every five 2.39E-06 lb/mmbtu (3-hr average) 2.4 lb/tbtu (3-hr average) lb/gwh (3-hr average) TPY (12-mo rolling average) lb/hr (3-hr average) lb/hr (3-hr average) 1.00E-05 lb/mmbtu (3-hr average) lb/hr (3-hr average) 1.00E-05 lb/mmbtu (3-hr average) Based on CE=83% and uncontrolled Hg of 10 lb/tbtu. provides for Hg optimization study to determine achievable Hg reductions. BCSS (/) Inorganic HAPs Inorganic Acid HAPs Organic HAPs led using a fabric filter. led using. led using good combustion practices lb/hr (24-hr average) Testing every 5 years Page 1 of 3

2 Thoroughbred Generating Central City, KY Station, LLC - Units #1 & 2 Prairie State Marissa, IL Generating Company, LLC LG&E Trimble Bedford, KY 7,443 mmbtu/hr 7,450 mmbtu/hr Est. 6,942 mmbtu/hr February 17, 2005 May 10, 2006 April 28, 2005 January 4, 2006 February 29, 2008 Kansas City Power & Light Platte County, MO 7,800 mmbtu/hr January 31, 2006 Iatan Unit #1 (modified) Kansas City Power & Light Platte County, MO Iatan Western Farmers Electric Cooperative Hugo Generating Station 8,100 mmbtu/hr 930MW Choctaw County, OK 7,125 mmbtu/hr January 31, 2006 January 29, 2007 Assume: 4.0% S by weight 8,780 Btu/lb SC SC Wet- Wet- P HLI Wet- ( or ) HAP Limit Units/Averaging Time BCSS (/) 21E-6 lb/mwh (12-month rolling average) Secretary's Findings, Conclusions of Law and Final Order (DAQ & DAQ ) (4/11/06) lb/gwh (12-month rolling average) 2.12E-06 lb/mmbtu (12-month rolling average) 2.12 lb/tbtu (12-month rolling average) TPY per unit 140 lb/yr per unit Beryllium lb/mmbtu (quarterly average) NA Lead lb/mmbtu (quarterly average) NA lb/mmbtu (30-day rolling average) NA VOC (HAPs) TPY per unit NA TPY per unit NA TPY per unit NA Arsenic TPY per unit NA Beryllium TPY per unit NA Chromium TPY per unit NA Manganese TPY per unit NA Lead TPY per unit NA Cadmium TPY per unit NA Option A: 95% reduction; or Option B: activated carbon injection Fluorides lb/mmbtu (3-hr average) Option A: lb/mmbtu; or Option B: 98% control 13E-06 lbs/mwh (12-month rolling average) lbs/gwh (12-month rolling average) 1.40E-06 lb/mmbtu (12-month rolling average) 1.40 lb/tbtu (12-month rolling average) 1.55 lb/hr (3-hr rolling average) NA 4.48E-06 lb/mmbtu (12-month rolling average) 4.48 lb/tbtu (12-month rolling average) 6.60E-05 lb/mwh (12-month rolling average) 6.95E-06 lb/mmbtu (12-month rolling average) 6.95 lb/tbtu (12-month rolling average) Page 2 of 3

3 Longleaf Energy Associates, LLC Units #1 & 2 Hilton, GA 6,139 mmbtu/hr May 14, 2007 PRB CAPP Clarifier Sludge (up to 61.4 mmbtu/hr and < 3.0% S by weight) H ( or ) HAP Limit Units/Averaging Time Mercury (PRB permit) 15E-06 lb/mwh (12-month rolling average) Mercury (PRB calc) 1.47E-06 lb/mmbtu (12-month rolling average) Mercury (PRB calc) 1.47 Mercury (CAPP permit) 6.E-06 lb/mwh (12-month rolling average) 5.86E-07 lb/mmbtu (12-month rolling average) 0.59 Mercury (PRB:CAPP permit) Mercury (PRB:CAPP calc) Mercury (PRB:CAPP calc) lb/mwh (12-month rolling average) lb/mmbtu (12-month rolling average) 7.1 lb/24-hr period from clarifier sludge (PRB permit) lb/mmbtu (3-hr average) Georgia Air Toxic Guideline (CAPP permit) lb/mmbtu (3-hr average) Georgia Air Toxic Guideline (PRB:CAPP permit) lb/mmbtu (3-hr average) Georgia Air Toxic Guideline AEP John W. Turk, Jr. Fulton, AR vember 5, 2008 USC Power Plant PM 10 (total) (permit) lb/mmbtu (3-hr average) Annual Stack Test (permit) lb/mmbtu (3-hr average) Annual Stack Test (permit) lb/mmbtu (3-hr average) Annual Stack Test VOC (permit) lb/mmbtu (3-hr average) Annual Stack Test Duke Energy Clifside, NC 7,850 mmbtu/hr March 13, 2009 Bituminous SC Mercury (bituminous permit) lb/gwh (12-month rolling average) Cliffside Steam Staion 800 MW Sub-Bituminous 2.04E-06 lb/mmbtu (12-month rolling average) Unit #6 Coal Refuse SDA 2.0 Mercury (sub-bituminous permit) 6.73E-06 lb/mmbtu (12-month rolling average) 6.7 Mercury (coal refuse permit) lb/gwh (12-month rolling average) 1.63E-06 lb/mmbtu (12-month rolling average) 1.6 Mercury (blends permit) lb/gwh (12-month rolling average) lb/mmbtu (12-month rolling average) Mercury (permit "State Only") lb/gwh (12-month rolling average) Each HAP (permit "State Only") 10 TPY (12-month rolling average) All HAPs (permit "State Only") 25 TPY (12-month rolling average) (permit "State Only") % Minimum control efficiency Abbreviations/Acronyms for : Abbreviations/Acronyms for : Abbreviations/Acronyms for HAPs: Abbreviations/Acronyms for Units/Averaging Time: = Pulverized Coal = Low NO x Burner = Hydrogen Chloride lb/mmbtu = pounds per million Btu heat input SC = Super Critical Pulverized Coal = Selective Catalytic Reduction = Hydrogen Fluoride lb/tbtu = pounds per trillion Btu heat input USC = Ultra Super Critical Pulverized Coal = Dry Flue Gas Desulfurization TSM = Total Selected Metals = lb/mmbtu x 1,000,000 = Wet Flue Gas Desulfurization CO = Carbon Monoxide (surrogate for organic HAPs) lb/mwh = pounds per megawatt hour electric power output Abbreviations/Acronyms for : = Baghouse/Fabric Filter VOC = Volatile Organic Compunds (surrogate for organic HAPs) lb/gwh = pounds per gigawatt hour electric power output PRB = Powder River Basin = Activated Carbon Injection PM = Particulate Matter (surrogate for metal HAPs) = lb/mwh x 1,000 CAPP = Central Appalachian H = Halogenated Activated Carbon Injection PM 10 = Particulate Matter <10 microns in diameter (surrogate for metal HAPs) P = Powdered Activated Carbon Injection HLI = Hydrated Lime Injection tes: (1) Emission rates that appear in the permit are identified in parens as "(permit)". SDA = Spray Dry Adsorbers (2) Emission rates that are calculated are identified in parens as "(calc)". (3) Emission rates that are estimated from other data are identiifed in parens as "(est)". BCSS (/) Page 3 of 3

4 Mid American Energy CBEC #4 Santee Cooper Cross Generating Station Units #3 &4 Longview Power, LLC Wisconsin Public Service Corporation Weston Unit #4 Council Bluffs, IA 7,675 mmbtu/hr 790 MW June 17, 2003 Pineville, SC February 5, ,700 mmbtu/hr 660 MW Maidsville, WV 6,114 mmbtu/hr March 2, 2004 <0.625 lb S/mmBtu Coal + Pet Coke (up to 30% by wt) Rothschild, WI 500 MW October 19, 2004 <1.4 lb SO2/mmBtu SC Table 1A Mercury Limits Only ( or ) HAP Limit Units/Averaging Time (30% Pet Coke) 1.7E-06 lb/mmbtu (3-hr average) provides for Hg optimization study to determine achievable Hg limit. 1.7 lb/tbtu (3-hr average) lb/gwh (3-hr average) 3.6E-06 lb/mmbtu (3-hr average) 3.6 lb/tbtu (3-hr average) lbs/gwh (3-hr average) 1.46E-02 lb/hr (3-hr average) Monthly compliance demonstration based on coal sampling and stack testing every five years. 2.39E-06 lb/mmbtu (3-hr average) 2.4 lb/tbtu (3-hr average) lb/gwh (3-hr average) TPY (12-mo rolling average) Based on CE=83% and uncontrolled Hg of 10 lb/tbtu. provides for Hg optimization study to determine achievable Hg reductions. BCSS (/) Thoroughbred Generating Central City, KY Station, LLC - Units #1 & 2 Prairie State Generating Company, LLC LG&E Trimble Kansas City Power & Light Iatan Unit #1 (modified) Marissa, IL Bedford, KY 7,443 mmbtu/hr 7,450 mmbtu/hr Est. 6,942 mmbtu/hr February 17, 2005 May 10, 2006 April 28, 2005 January 4, 2006 February 29, 2008 Platte County, MO 7,800 mmbtu/hr January 31, 2006 Assume: 4.0% S by weight 8,780 Btu/lb S Wet- Wet- P HLI Wet- 21E-6 lb/mwh (12-month rolling average) Secretary's Findings, Conclusions of Law and Final Order (DAQ & DAQ ) (4/11/06) lb/gwh (12-month rolling average) 2.12E-06 lb/mmbtu (12-month rolling average) 2.12 lb/tbtu (12-month rolling average) TPY per unit 140 lb/yr per unit Option A: 95% reduction; or Option B: activated carbon injection 13E-06 lbs/mwh (12-month rolling average) lbs/gwh (12-month rolling average) 1.40E-06 lb/mmbtu (12-month rolling average) 1.40 lb/tbtu (12-month rolling average) Page 1 of 2 Apri 7, 2009

5 Kansas City Power & Light Platte County, MO Iatan Western Farmers Electric Cooperative Hugo Generating Station Longleaf Energy Associates, LLC Units #1 & 2 AEP John W. Turk, Jr. Power Plant Hilton, GA 8,100 mmbtu/hr 930 MW Choctaw County, OK 7,125 mmbtu/hr 6,139 mmbtu/hr January 31, 2006 January 29, 2007 May 14, 2007 PRB CAPP Clarifier Sludge < 3.0% S by weight SC Fulton, AR vember 5, 2008 USC H ( or ) HAP Limit Units/Averaging Time BCSS (/) 4.48E-06 lb/mmbtu (12-month rolling average) 4.48 lb/tbtu (12-month rolling average) 6.60E-05 lb/mwh (12-month rolling average) 6.95 lb/tbtu (12-month rolling average) Mercury (PRB permit) 15E-06 lb/mwh (12-month rolling average) Mercury (PRB calc) 1.47E-06 lb/mmbtu (12-month rolling average) Mercury (PRB calc) 1.47 Mercury (CAPP permit) 6.E-06 lb/mwh (12-month rolling average) 5.86E-07 lb/mmbtu (12-month rolling average) 0.59 Mercury (PRB:CAPP permit) lb/mwh (12-month rolling average) Mercury (PRB:CAPP calc) lb/mmbtu (12-month rolling average) Mercury (PRB:CAPP calc) 7.1 lb/24-hr period from clarifier sludge Duke Energy Clifside, NC 7,850 mmbtu/hr March 13, 2009 Bituminous SC Mercury (bituminous permit) lb/gwh (12-month rolling average) Cliffside Steam Staion 800 MW Sub-Bituminous 2.04E-06 lb/mmbtu (12-month rolling average) Unit #6 Coal Refuse SDA 2.0 Mercury (sub-bituminous permit) 6.73E-06 lb/mmbtu (12-month rolling average) 6.7 Mercury (coal refuse permit) lb/gwh (12-month rolling average) 1.63E-06 lb/mmbtu (12-month rolling average) 1.6 Mercury (blends permit) lb/gwh (12-month rolling average) lb/mmbtu (12-month rolling average) Mercury (permit "State Only") lb/gwh (12-month rolling average) Abbreviations/Acronyms for : Abbreviations/Acronyms for : Abbreviations/Acronyms for HAPs: Abbreviations/Acronyms for Units/Averaging Time: = Pulverized Coal = Low NO x Burner = Hydrogen Chloride lb/mmbtu = pounds per million Btu heat input SC = Super Critical Pulverized Coal = Selective Catalytic Reduction = Hydrogen Fluoride lb/tbtu = pounds per trillion Btu heat input USC = Ultra Super Critical Pulverized Coal = Dry Flue Gas Desulfurization TSM = Total Selected Metals = lb/mmbtu x 1,000,000 = Wet Flue Gas Desulfurization CO = Carbon Monoxide (surrogate for organic HAPs) lb/mwh = pounds per megawatt hour electric power output Abbreviations/Acronyms for : = Baghouse/Fabric Filter VOC = Volatile Organic Compunds (surrogate for organic HAPs) lb/gwh = pounds per gigawatt hour electric power output PRB = Powder River Basin = Activated Carbon Injection PM = Particulate Matter (surrogate for metal HAPs) = lb/mwh x 1,000 CAPP = Central Appalachian H = Halogenated Activated Carbon Injection PM 10 = Particulate Matter <10 microns in diameter (surrogate for metal HAPs) P = Powdered Activated Carbon Injection HLI = Hydrated Lime Injection tes: (1) Emission rates that appear in the permit are identified in parens as "(permit)". SDA = Spray Dry Adsorbers (2) Emission rates that are calculated are identified in parens as "(calc)". (3) Emission rates that are estimated from other data are identiifed in parens as "(est)". Page 2 of 2 Apri 7, 2009