### Name: Jon Hays

Title: Environmantal Specialist Company: Duke Energy Sign Date: 9/2/2010 Name: Pat Ford Title: Project Manager Company: AECOM Sign Date: 8/26/2010 Permitted Facility Representative / Date Testing Company Representative / Date Final Test Report for

/ / Based on information and belief formed after reasonable inquiry, I certify that the statements and information in this test report are true, accurate, and complete. I have reviewed all testing details and results in this test report and hereby certify that the test report is authentic and accurate.

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Facility Information: IN_Gibson Generating Station Unit 4
1097 N 950 W

Owensville IN 47665
Contact: Jon Hays
Phone: 317-838-4445
Fax: 317-8382490
Email: jon.hays@duke.energy.com Testing Company:

AECOM 2 Technology Park Drive

Westford MA 01886
Contact: Patrick Ford
Phone: 978-589-3427
Fax: 978-589-3100
Email: pat.ford@aecom.com

Air Permit Number:
051-23526-00013 Permitted Source ID/Name: Coal-Fired Electric Utility Boilers Unit 4
Permitted Maximum Process Rate: 5897 Max. Normal Operation Process Rate: 5897 Target Process Test Rate 5897

Description of the source (including control equipment). Please see the attachments for source or process flow diagram: This description should describe the process and associated controls to differentiate this facility from, or document similarity with others of same SCC.

The following describes any modifications and/or deviations to the applicable test methods. If alternative methods were requested, see the attachments for documentation of request AND approval, including dates. Industry/SCC/NAIS 221112

Sampling Location Information:

Test Parameter Information: AFS #: 1805100013 FRS #: 330015651387

SCC / Description 10100202 External Combustion Boilers - Electric Generation - Bituminous/Subbituminous Coal - Pulverized Coal: Dry Bottom (Bituminous Coal)

The following state and federal regulations that apply to the proposed testing:

Location Round

Duct Diam. Distance from upstream dist. Distance from

downstream dist. Number of

Traverse Ports Equiv. Diam Min.Travers Points Rect. Duct Length /Width
Stack Exit 317 8 2 4 0 12 0 0

Target Parameter Test Method Number of

Test Runs Test Run

Duration Sample

Points Comments Location
% H2O Method 1 - 4 3 60 0 Stack Exit Hydrogen Fluoride Method 26A 3 60 0 Stack Exit Hydrogen Chloride Method 26A 3 60 0 Stack Exit O2 Method 3A O2 3 60 0 Stack Exit Co2 Method 3A CO2 3 60 0 Stack Exit Sulfur Dioxide Method 6C 3 60 0 Stack Exit Nitrogen oxides (NOx) Method 7E 3 60 0 Stack Exit



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The following describes any modifications and/or deviations to the applicable test methods. If alternative methods were requested, see the attachments for documentation of request AND approval, including dates.



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Sampling / Stack Data Results Summary



### Location Stack Exit - Method 26A Average
Run Number 1 2 3

Test Date 6/16/2010 6/16/2010 6/16/2010
Run Start Time 2:30:00 PM 4:39:00 PM 6:27:00 PM

Run Finish Time 4:13:00 PM 6:05:00 PM 7:43:00 PM

Net Run Time, minutes 60 60 60 Dry Gas Meter Volume Sampled, dscf 45.432 45.224 46.347 45.668 Moisture Content of Stack Gas, % 16.43 16.38 16.34 16.383 Moisture Saturation at Stack Gas Temperature, % 15.86 15.86 16.07 15.930 Carbon Dioxide, % 13.33 13.33 13.33 13.330 Oxygen, % 6.15 6.11 6.13 6.130 Average Stack Gas Temperature, °F 131.08 131.08 131.58 131.247 Dry Volumetric Flow Rate, dry scfm 1,364,844.7 1,366,540. 2 1,375,013.0 1,368,799.30 0 Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,853,065.2 1,855,367. 2 1,873,125.0 1,860,519.13 3 Percent Isokinetic of Sampling Rate, % 101.0 100.4 102.2 101.200 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000
Fw 10640 10640 10640 10,640.000
Fc 1800 1800 1800 1,800.000



### Location Stack Exit - Method 3A CO2 Average
Run Number
Test Date
Run Start Time
Run Finish Time Carbon Dioxide, % Oxygen, % Dry Volumetric Flow Rate, dry scfm F-Factor, dscfm/MMBtu @ %O2 Moisture, % Fuel Type
Fw
Fc



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Location Stack Exit - Method 3A O2 Average
Run Number

Test Date
Run Start Time
Run Finish Time Carbon Dioxide, % Oxygen, % Dry Volumetric Flow Rate, dry scfm F-Factor, dscfm/MMBtu @ %O2 Moisture, % Fuel Type
Fw
Fc



### Location Stack Exit - Method 6C Average
Run Number
Test Date
Run Start Time
Run Finish Time Carbon Dioxide, % Oxygen, % Dry Volumetric Flow Rate, dry scfm F-Factor, dscfm/MMBtu @ %O2 Moisture, % Fuel Type
Fw
Fc



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Location Stack Exit - Method 7E Average
Run Number

Test Date
Run Start Time
Run Finish Time Carbon Dioxide, % Oxygen, % Dry Volumetric Flow Rate, dry scfm F-Factor, dscfm/MMBtu @ %O2 Moisture, % Fuel Type
Fw
Fc



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Emissions Summary

Process Run Data 

### Location: Stack Exit - Method 26A Compound: Hydrogen Chloride Average RunNumber 1 2 3 Mass_mg 0.4 0.38 0.39 0.390 Elb/hr 1.59E+00 1.52E+00 1.53E+00 1.547 lb/mmBtuO2 2.69E-04 2.56E-04 2.57E-04 0.000
ppm 2.05E-01 1.96E-01 1.96E-01 0.199 ppm@7%O2 1.93E-01 1.84E-01 1.84E-01 0.187


### Compound: Hydrogen Fluoride Average RunNumber 1 2 3 Mass_mg 0.24 0.23 0.24 0.237 Elb/hr 9.54E-01 9.19E-01 9.42E-01 0.938 lb/mmBtuO2 1.61E-04 1.55E-04 1.58E-04 0.000
ppm 2.24E-01 2.16E-01 2.20E-01 0.220 ppm@7%O2 2.11E-01 2.03E-01 2.07E-01 0.207



### Location: Stack Exit - Method 6C 

### Compound: Sulfur Dioxide Average Run 1 2 3 Elb/hr 6.91E+02 7.78E+02 1.53E+03 999.667 lb/mmBtuO2 1.16E-01 1.29E-01 2.55E-01 0.167
ppm 5.04E+01 5.63E+01 1.11E+02 72.567 ppm@7%O2 4.75E+01 5.29E+01 1.04E+02 68.133



### Location: Stack Exit - Method 7E 

### Compound: Nitrogen oxides (NOx) Average Run 1 2 3 Elb/hr 4.09E+02 5.32E+02 4.06E+02 449.000 lb/mmBtuO2 6.86E-02 8.85E-02 6.77E-02 0.075
ppm 4.15E+01 5.36E+01 4.10E+01 45.367 ppm@7%O2 3.91E+01 5.04E+01 3.86E+01 42.700



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Process Run Data

APCD Run Data

Process Lab Run Data 

### Run Name Value UOM Comments Target Value
5 Heat Input 5358.1 Million Btu/Hr Run 3 Acid Gases 6265


### 5 Unit Gross Electrical Output 662 MW Run 3 Acid Gases 661

1 Heat Input 5410.5 Million Btu/Hr Run 1 Acid Gases 6265

2 Heat Input 0 Million Btu/Hr 6265



### 3 Heat Input 0 Million Btu/Hr 6265

4 Heat Input 5295.8 Million Btu/Hr Run 2 Acid Gases 6265

1 Unit Gross Electrical Output 662 MW Run 1 Acid Gases 661



### 4 Unit Gross Electrical Output 662 MW Run 2 Acid Gases 661

Run Name Value UOM Comments Target Value
1 List all emissions control devices in order of process flow. Choose from 0 0



### 1 drop down lists. If not on list add description and provide detailed 0 0

1 desription in section 5a. 0 0

Run Name Value UOM Comments


### 1 Fuel Higher Heating Value 0 Btu/lb
1 Fuel Moisture 0 % 1 Ultimate/Proximate Analysis 0
1 Fuel Chlorine Content 0 mg/kg


### 1 Fuel Fluorine Content 0 mg/kg
1 Metals Content 0 mg/kg



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Sampling / Stack Data Results Detail



### Location Stack Exit - Method 26A Average Run Number 1 2 3 Test Date 6/16/2010 6/16/2010 6/16/2010 Run Start Time 2:30:00 PM 4:39:00 PM 6:27:00 PM Run Finish Time 4:13:00 PM 6:05:00 PM 7:43:00 PM Net Traversing Points 12 12 12 Net Run Time, minutes 60 60 60 Nozzle Diameter, inches 0.235 0.235 0.235 0.235 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 1.025 1.025 1.025 1.025 Barometric Pressure, inches of Mercury 29.3 29.3 29.3 29.300 Average Orifice Meter Differential, inches H2O 2.09 2.10 2.14 2.110 Dry Gas Meter Volume Sampled, cubic feet 47.399 47.698 48.732 47.943 Average Dry Gas Meter Temperature, °F 95.83 101.92 100.25 99.333 Dry Gas Meter Volume Sampled, dscf 45.432 45.224 46.347 45.668 Total Moisture Liquid collected, g 189.8 188.3 192.2 190.100 Volume of Water Vapor, standard cubic feet 8.93 8.86 9.05 8.947 Moisture Content of Stack Gas, % 16.43 16.38 16.34 16.383 Moisture Saturation at Stack Gas Temperature, % 15.86 15.86 16.07 15.930 Dry Mole Fraction 0.8414 0.8414 0.8393 0.841 Carbon Dioxide, % 13.33 13.33 13.33 13.330 Oxygen, % 6.15 6.11 6.13 6.130 Carbon Monoxide & Nitrogen, % 80.52 80.56 80.54 80.540 Fuel Factor 1.11 1.11 1.11 Dry Molecular Weight, lb/lb-Mole 30.38 30.38 30.38 30.380 Wet Molecular weight, lb/lb-Mole 28.52 28.51 28.44 28.490 Flue Gas Static Pressure, inches of H2O 0.27 0.21 0.26 0.247 Absolute Flue Gas Pressure, inches of Mercury 29.32 29.32 29.32 29.320 Average Stack Gas Temperature, °F 131.08 131.08 131.58 131.247 Average Velocity Head, inches of H2O 0.8710335710 84044 0.873079741

952828 0.886758729

560565 0.877

Average Stack Gas Velocity, feet/second 56.35 56.42 56.96 56.577 Stack Cross-Sectional Area, square feet 548.082 548.082 548.082 548.082 Dry Volumetric Flow Rate, dry scfm 1,364,844.7 1,366,540.2 1,375,013.0 1,368,799.3 00 Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,853,065.2 1,855,367.2 1,873,125.0 1,860,519.1 33 Percent Isokinetic of Sampling Rate, % 101.0 100.4 102.2 101.200 Percent Excess Air, % 40.7 40.3 40.5 40.500 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Round Duct Diameter, inches 317 317 317 Rectangular Duct Width, inches 0 0 0 Rectangular Duct Length, inches 0 0 0 Fw 10640 10640 10640 10,640.000 Fc 1800 1800 1800 1,800.000



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Location Stack Exit - Method 3A CO2 Average Run Number Test Date Run Start Time Run Finish Time Carbon Dioxide, % Oxygen, % Fuel Factor Dry Volumetric Flow Rate, dry scfm F-Factor, dscfm/MMBtu @ %O2 Moisture, % Analyzer Make Analyzer Model Analyzer Serial Number Operating Range Operating Units No. Readings/Avg. Calibration Set Calibration Pre Zero Cylinder ID Calibration Pre Zero Cylinder Instrument Response Calibration Pre Zero Cylinder Bias Calibration Pre Zero Cylinder Drift Calibration Pre High Cylinder ID Calibration Pre High Cylinder Instrument Response Calibration Pre High Cylinder Bias Calibration Pre High Cylinder Drift Calibration Post Zero Cylinder ID Calibration Post Zero Cylinder Instrument Response Calibration Post Zero Cylinder Bias Calibration Post Zero Cylinder Drift Calibration Post High Cylinder ID Calibration Post High Cylinder Instrument Response Calibration Post High Cylinder Bias Calibration Post High Cylinder Drift Cavg Cavg Units Cgas Cgas Units Fuel Type Fw Fc Cgasw Cgasw Units



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Location Stack Exit - Method 3A O2 Average Run Number Test Date Run Start Time Run Finish Time Carbon Dioxide, % Oxygen, % Fuel Factor Dry Volumetric Flow Rate, dry scfm F-Factor, dscfm/MMBtu @ %O2 Moisture, % Analyzer Make Analyzer Model Analyzer Serial Number Operating Range Operating Units No. Readings/Avg. Calibration Set Calibration Pre Zero Cylinder ID Calibration Pre Zero Cylinder Instrument Response Calibration Pre Zero Cylinder Bias Calibration Pre Zero Cylinder Drift Calibration Pre High Cylinder ID Calibration Pre High Cylinder Instrument Response Calibration Pre High Cylinder Bias Calibration Pre High Cylinder Drift Calibration Post Zero Cylinder ID Calibration Post Zero Cylinder Instrument Response Calibration Post Zero Cylinder Bias Calibration Post Zero Cylinder Drift Calibration Post High Cylinder ID Calibration Post High Cylinder Instrument Response Calibration Post High Cylinder Bias Calibration Post High Cylinder Drift Cavg Cavg Units Cgas Cgas Units Fuel Type Fw Fc Cgasw Cgasw Units



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Location Stack Exit - Method 6C Average Run Number Test Date Run Start Time Run Finish Time Carbon Dioxide, % Oxygen, % Fuel Factor Dry Volumetric Flow Rate, dry scfm F-Factor, dscfm/MMBtu @ %O2 Moisture, % Analyzer Make Analyzer Model Analyzer Serial Number Operating Range Operating Units No. Readings/Avg. Calibration Set Calibration Pre Zero Cylinder ID Calibration Pre Zero Cylinder Instrument Response Calibration Pre Zero Cylinder Bias Calibration Pre Zero Cylinder Drift Calibration Pre High Cylinder ID Calibration Pre High Cylinder Instrument Response Calibration Pre High Cylinder Bias Calibration Pre High Cylinder Drift Calibration Post Zero Cylinder ID Calibration Post Zero Cylinder Instrument Response Calibration Post Zero Cylinder Bias Calibration Post Zero Cylinder Drift Calibration Post High Cylinder ID Calibration Post High Cylinder Instrument Response Calibration Post High Cylinder Bias Calibration Post High Cylinder Drift Cavg Cavg Units Cgas Cgas Units Fuel Type Fw Fc Cgasw Cgasw Units



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Location Stack Exit - Method 7E Average Run Number Test Date Run Start Time Run Finish Time Carbon Dioxide, % Oxygen, % Fuel Factor Dry Volumetric Flow Rate, dry scfm F-Factor, dscfm/MMBtu @ %O2 Moisture, % Analyzer Make Analyzer Model Analyzer Serial Number Operating Range Operating Units No. Readings/Avg. Calibration Set Calibration Pre Zero Cylinder ID Calibration Pre Zero Cylinder Instrument Response Calibration Pre Zero Cylinder Bias Calibration Pre Zero Cylinder Drift Calibration Pre High Cylinder ID Calibration Pre High Cylinder Instrument Response Calibration Pre High Cylinder Bias Calibration Pre High Cylinder Drift Calibration Post Zero Cylinder ID Calibration Post Zero Cylinder Instrument Response Calibration Post Zero Cylinder Bias Calibration Post Zero Cylinder Drift Calibration Post High Cylinder ID Calibration Post High Cylinder Instrument Response Calibration Post High Cylinder Bias Calibration Post High Cylinder Drift Cavg Cavg Units Cgas Cgas Units Fuel Type Fw Fc Cgasw Cgasw Units



### Wednesday, February 02, 2011 Page 13 of 13