### Name: John M. McManus

Title: Vice President- Environmental Service Company: American Electric Power Sign Date: 6/30/2010 Name: Scott W. Banach Title: Director, Project Engineering Company: Platt Environmental Services, Inc. Sign Date: 6/25/2010 Permitted Facility Representative / Date Testing Company Representative / Date 

## Mitchell Unit 1 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.

Wednesday, January 19, 2011 Page 1 of 24

### Mitchell Unit 1

6/30/2010 Facility Information:

Mitchell Plant

State Route 2

Moundsville W 26041
Contact:Paul Jackson

Phone: 614-716-3278

Fax: 614-716-1252
Email: pmjackson@aep.com Testing Company:
Platt Environmental Services, Inc. 1520 Kensington Road

Suite 204

Oak Brook IL 60523
Contact:Scott Banach

Phone:630-521-9400

Fax: 630-521-9494
Email: sbanach@plattenv.com

Air Permit Number:
R30-05100005-2009 Permitted Source ID/Name:
Boiler 1 Unit 1
Permitted Maximum Process Rate:
N/A Max. Normal Operation Process Rate:
N/A Target Process Test Rate
N/A

Description of the source (including control equipment). Please see the attachments for source or process flow diagram:

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/NAIS221112

Sampling Location Information:

Test Parameter Information: AFS #: FRS #:

SCC / Description10100202 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 408 816 3264 4 0 12 0 0

Target Parameter Test Method Number of

Test Runs Test Run

Duration Sample

Points Comments Location Hydrogen Fluoride Method 26A 3 120 0 Stack Hydrogen Chloride Method 26A 3 120 0 Stack O2 Method 3A O2 3 120 0 Stack Co2 Method 3A CO2 3 120 0 Stack



### Wednesday, January 19, 2011 Page 2 of 24

### Mitchell Unit 1

6/30/2010

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### Mitchell Unit 1

6/30/2010 Sampling / Stack Data Results Summary



### Location Stack - Method 26A Average
Run Number M26A-1 M26A-2 M26A-3

Test Date 3/31/2010 3/31/2010 3/31/2010

Run Start Time 8:31:00 AM 10:20:00 AM11:59:00 AM

Run Finish Time 9:49:00 AM 11:37:00 AM 1:16:00 PM

Net Run Time, minutes 60 60 60 Dry Gas Meter Volume Sampled, dscf 40.041 45.640 45.769 43.817
Moisture Content of Stack Gas, % 14.61 14.40 14.54 14.517 Moisture Saturation at Stack Gas Temperature, % 13.39 13.73 13.85 13.657
Carbon Dioxide, % 12.1 12.1 12 12.067 Oxygen, % 6.7 6.7 6.8 6.733 Average Stack Gas Temperature, °F 123.83 124.75 125.08 124.553 Dry Volumetric Flow Rate, dry scfm 1,985,859.71,981,840.2 1,986,864.3 1,984,854.73 3
Actual Wet Volumetric Flue Gas Flow Rate, acfm 2,655,121.22,664,382.0 2,676,366.62,665,289.93 3 Percent Isokinetic of Sampling Rate, % 103.0 102.2 102.3 102.500
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



### Wednesday, January 19, 2011 Page 4 of 24

### Mitchell Unit 1

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Location Stack - Method 3A CO2 Average
Run Number 1 2 3

Test Date 3/31/2010 3/31/2010 3/31/2010

Run Start Time 8:31:00 AM 10:20:00 AM11:59:00 AM

Run Finish Time 9:49:00 AM 11:37:00 AM 1:16:00 PM

Carbon Dioxide, % 12.1 12.1 12 12.067 Oxygen, % 6.7 6.7 6.8 6.733 Dry Volumetric Flow Rate, dry scfm 1964044 1957809 19612381,961,030.33 3
F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000
Moisture, % 13.4 13.7 13.9 13.667 Fuel Type Coal - Bituminous Coal -

Bituminous Coal -

Bituminous

Fw 10640 10640 10640 10,640.000

Fc 1800 1800 1800 1,800.000



### Location Stack - Method 3A O2 Average
Run Number 1 2 3

Test Date 3/31/2010 3/31/2010 3/31/2010

Run Start Time 8:31:00 AM 10:20:00 AM11:59:00 AM

Run Finish Time 9:49:00 AM 11:37:00 AM 1:16:00 PM

Carbon Dioxide, % 12.1 12.1 12 12.067 Oxygen, % 6.7 6.7 6.8 6.733 Dry Volumetric Flow Rate, dry scfm 1964044 1957809 19612381,961,030.33 3
F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000
Moisture, % 13.4 13.7 13.9 13.667 Fuel Type Coal - Bituminous Coal -

Bituminous Coal -

Bituminous

Fw 10640 10640 10640 10,640.000

Fc 1800 1800 1800 1,800.000



### Wednesday, January 19, 2011 Page 5 of 24

### Mitchell Unit 1

6/30/2010 Emissions Summary

Process Run Data 

### Location: Stack - Method 26A Compound: Hydrogen Chloride Average RunNumber M26A-1 M26A-2 M26A-3 Mass_mg 18 18 18 18.000 lb/mmBtuO2 1.43E-02 1.25E-02 1.26E-02 0.013


### Compound: Hydrogen Fluoride Average RunNumber M26A-1 M26A-2 M26A-3 Mass_mg 12 60 12 28.000 lb/mmBtuO2 9.51E-03 4.17E-02 8.38E-03 0.020



### Wednesday, January 19, 2011 Page 6 of 24

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Process Run Data



### Run Name Value UOM Comments Target Value
1 Bituminous Coal Burned 268 Tons/hr The ERT requires that the process data collected during the stack test period be accompanied by a target value. For the AEP tests, we want to clarify that the target value provided does not represent any limit or maximum design set point for operation of the steam generators and associated control equipment. In some cases, the value is a permit or regulatory limit, such as the case of opacity. Operation outside of the target value does not represent abnormal operation. 270



### Wednesday, January 19, 2011 Page 7 of 24

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1 Steam Temperature 1000 F The ERT requires that the process data collected during the stack test period be accompanied by a target value. For the AEP tests, we want to clarify that the target value provided does not represent any limit or maximum design set point for operation of the steam generators and associated control equipment. In some cases, the value is a permit or regulatory limit, such as the case of opacity. Operation outside of the target value does not represent abnormal operation. 1000



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1 Steam Pressure 3507.8 psig The ERT requires that the process data collected during the stack test period be accompanied by a target value. For the AEP tests, we want to clarify that the target value provided does not represent any limit or maximum design set point for operation of the steam generators and associated control equipment. In some cases, the value is a permit or regulatory limit, such as the case of opacity. Operation outside of the target value does not represent abnormal operation. 3500



### Wednesday, January 19, 2011 Page 9 of 24

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1 Fuel Flow 268 tons/hr The ERT requires that the process data collected during the stack test period be accompanied by a target value. For the AEP tests, we want to clarify that the target value provided does not represent any limit or maximum design set point for operation of the steam generators and associated control equipment. In some cases, the value is a permit or regulatory limit, such as the case of opacity. Operation outside of the target value does not represent abnormal operation. 270



### Wednesday, January 19, 2011 Page 10 of 24

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1 Opacity 7.7 % The ERT requires that the process data collected during the stack test period be accompanied by a target value. For the AEP tests, we want to clarify that the target value provided does not represent any limit or maximum design set point for operation of the steam generators and associated control equipment. In some cases, the value is a permit or regulatory limit, such as the case of opacity. Operation outside of the target value does not represent abnormal operation. 10



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2 Bituminous Coal Burned 268 Tons/hr The ERT requires that the process data collected during the stack test period be accompanied by a target value. For the AEP tests, we want to clarify that the target value provided does not represent any limit or maximum design set point for operation of the steam generators and associated control equipment. In some cases, the value is a permit or regulatory limit, such as the case of opacity. Operation outside of the target value does not represent abnormal operation. 270



### Wednesday, January 19, 2011 Page 12 of 24

### Mitchell Unit 1

6/30/2010

2 Steam Temperature 1000 F The ERT requires that the process data collected during the stack test period be accompanied by a target value. For the AEP tests, we want to clarify that the target value provided does not represent any limit or maximum design set point for operation of the steam generators and associated control equipment. In some cases, the value is a permit or regulatory limit, such as the case of opacity. Operation outside of the target value does not represent abnormal operation. 1000



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### Mitchell Unit 1

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2 Steam Pressure 3507.8 psig The ERT requires that the process data collected during the stack test period be accompanied by a target value. For the AEP tests, we want to clarify that the target value provided does not represent any limit or maximum design set point for operation of the steam generators and associated control equipment. In some cases, the value is a permit or regulatory limit, such as the case of opacity. Operation outside of the target value does not represent abnormal operation. 3500



### Wednesday, January 19, 2011 Page 14 of 24

### Mitchell Unit 1

6/30/2010

2 Fuel Flow 268 tons/hr The ERT requires that the process data collected during the stack test period be accompanied by a target value. For the AEP tests, we want to clarify that the target value provided does not represent any limit or maximum design set point for operation of the steam generators and associated control equipment. In some cases, the value is a permit or regulatory limit, such as the case of opacity. Operation outside of the target value does not represent abnormal operation. 270



### Wednesday, January 19, 2011 Page 15 of 24

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6/30/2010

2 Opacity 7.7 % The ERT requires that the process data collected during the stack test period be accompanied by a target value. For the AEP tests, we want to clarify that the target value provided does not represent any limit or maximum design set point for operation of the steam generators and associated control equipment. In some cases, the value is a permit or regulatory limit, such as the case of opacity. Operation outside of the target value does not represent abnormal operation. 10



### Wednesday, January 19, 2011 Page 16 of 24

### Mitchell Unit 1

6/30/2010
3 Bituminous Coal Burned 268 Tons/hr The ERT requires that the process data collected during the stack test period be accompanied by a target value. For the AEP tests, we want to clarify that the target value provided does not represent any limit or maximum design set point for operation of the steam generators and associated control equipment. In some cases, the value is a permit or regulatory limit, such as the case of opacity. Operation outside of the target value does not represent abnormal operation. 270



### Wednesday, January 19, 2011 Page 17 of 24

### Mitchell Unit 1

6/30/2010
3 Steam Temperature 1000 F The ERT requires that the process data collected during the stack test period be accompanied by a target value. For the AEP tests, we want to clarify that the target value provided does not represent any limit or maximum design set point for operation of the steam generators and associated control equipment. In some cases, the value is a permit or regulatory limit, such as the case of opacity. Operation outside of the target value does not represent abnormal operation. 1000



### Wednesday, January 19, 2011 Page 18 of 24

### Mitchell Unit 1

6/30/2010
3 Steam Pressure 3507.8 psig The ERT requires that the process data collected during the stack test period be accompanied by a target value. For the AEP tests, we want to clarify that the target value provided does not represent any limit or maximum design set point for operation of the steam generators and associated control equipment. In some cases, the value is a permit or regulatory limit, such as the case of opacity. Operation outside of the target value does not represent abnormal operation. 3500



### Wednesday, January 19, 2011 Page 19 of 24

### Mitchell Unit 1

6/30/2010
3 Fuel Flow 268 tons/hr The ERT requires that the process data collected during the stack test period be accompanied by a target value. For the AEP tests, we want to clarify that the target value provided does not represent any limit or maximum design set point for operation of the steam generators and associated control equipment. In some cases, the value is a permit or regulatory limit, such as the case of opacity. Operation outside of the target value does not represent abnormal operation. 270



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6/30/2010

APCD Run Data

Process Lab Run Data 3 Opacity 7.7 % The ERT requires that the process data collected during the stack test period be accompanied by a target value. For the AEP tests, we want to clarify that the target value provided does not represent any limit or maximum design set point for operation of the steam generators and associated control equipment. In some cases, the value is a permit or regulatory limit, such as the case of opacity. Operation outside of the target value does not represent abnormal operation. 10



### Run Name Value UOM Comments Target Value
1 ELECTROSTATIC PRECIPITATOR - HIGH EFFICIENCY 7.7 Opacity % 10



### 2 ELECTROSTATIC PRECIPITATOR - HIGH EFFICIENCY 7.7 Opacity % 10

3 ELECTROSTATIC PRECIPITATOR - HIGH EFFICIENCY 7.7 Opacity % 10



### 1 SCR (SELECTIVE CATALYTIC REDUCTION) 3283 lb/hr 3300

2 SCR (SELECTIVE CATALYTIC REDUCTION) 3283 lb/hr 3300

3 SCR (SELECTIVE CATALYTIC REDUCTION) 3283 lb/hr 3300



### 1 SCRUBBER 0.1 lb/mmBTU 0.1

2 SCRUBBER 0.1 lb/mmBTU 0.1

3 SCRUBBER 0.1 lb/mmBTU 0.1



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### Mitchell Unit 1

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Sampling / Stack Data Results Detail



### Location Stack - Method 26A Average Run Number M26A-1 M26A-2 M26A-3
Test Date 3/31/2010 3/31/2010 3/31/2010 Run Start Time 8:31:00 AM10:20:00 AM11:59:00 AM Run Finish Time 9:49:00 AM11:37:00 AM 1:16:00 PM Net Traversing Points 16 16 16 Net Run Time, minutes 60 60 60 Nozzle Diameter, inches 0.233 0.25 0.25 0.244 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 1.004 1.004 1.004 1.004 Barometric Pressure, inches of Mercury 28.67 28.67 28.67 28.670 Average Orifice Meter Differential, inches H2O 1.22 1.63 1.66 1.503 Dry Gas Meter Volume Sampled, cubic feet 42.859 49.003 49.227 47.030 Average Dry Gas Meter Temperature, °F 85.42 87.67 88.67 87.253 Dry Gas Meter Volume Sampled, dscf 40.041 45.640 45.769 43.817 Total Moisture Liquid collected, g 145.5 163.1 165.4 158.000 Volume of Water Vapor, standard cubic feet 6.85 7.68 7.79 7.440 Moisture Content of Stack Gas, % 14.61 14.40 14.54 14.517 Moisture Saturation at Stack Gas Temperature, % 13.39 13.73 13.85 13.657 Dry Mole Fraction 0.8661 0.8627 0.8615 0.863 Carbon Dioxide, % 12.1 12.1 12 12.067 Oxygen, % 6.7 6.7 6.8 6.733 Carbon Monoxide & Nitrogen, % 81.2 81.2 81.2 81.200 Fuel Factor 1.17 1.17 1.18 Dry Molecular Weight, lb/lb-Mole 30.20 30.20 30.19 30.197 Wet Molecular weight, lb/lb-Mole 28.79 28.65 28.63 28.690 Flue Gas Static Pressure, inches of H2O -1.3 -1.3 -1.3 -1.300 Absolute Flue Gas Pressure, inches of Mercury 28.57 28.57 28.57 28.570 Average Stack Gas Temperature, °F 123.83 124.75 125.08 124.553 Average Velocity Head, inches of H2O 0.6488729056 961590.649436252

4255880.654319818

79013 0.651

Average Stack Gas Velocity, feet/second 48.74 48.91 49.13 48.927 Stack Cross-Sectional Area, square feet 907.920 907.920 907.920 907.920 Dry Volumetric Flow Rate, dry scfm 1,985,859.7 1,981,840.2 1,986,864.31,984,854.7 33 Actual Wet Volumetric Flue Gas Flow Rate, acfm 2,655,121.2 2,664,382.0 2,676,366.62,665,289.9 33 Percent Isokinetic of Sampling Rate, % 103.0 102.2 102.3 102.500 Percent Excess Air, % 45.5 45.5 46.5 45.833 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Round Duct Diameter, inches 408 408 408 Rectangular Duct Width, inches 0 0 0 Rectangular Duct Length, inches 0 0 0
Fw 10640 10640 1064010,640.000
Fc 1800 1800 1800 1,800.000



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Location Stack - Method 3A CO2 Average Run Number 1 2 3
Test Date 3/31/2010 3/31/2010 3/31/2010 Run Start Time 8:31:00 AM10:20:00 AM11:59:00 AM Run Finish Time 9:49:00 AM11:37:00 AM 1:16:00 PM Carbon Dioxide, % 12.1 12.1 12 12.067 Oxygen, % 6.7 6.7 6.8 6.733 Fuel Factor 1.17 1.17 1.18 Dry Volumetric Flow Rate, dry scfm 1964044 1957809 19612381,961,030.3 33 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Moisture, % 13.4 13.7 13.9 13.667 Analyzer Make ServoMex ServoMex ServoMex Analyzer Model 01440D1 01440D1 01440D114,400.000 Analyzer Serial Number 3790 3790 3790 3,790.000 Operating Range 20 20 20 20.000 Operating Units % % % No. Readings/Avg. 78 77 77 77.333 Calibration Set 0 0 0 0.000 Calibration Pre Zero Cylinder ID ZERO-CO2 ZERO-CO2 ZERO-CO2 Calibration Pre Zero Cylinder Instrument Response 0 0.02 0.06 0.027 Calibration Pre Zero Cylinder Bias 0 0.1 0.3 0.133 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CC114878- CO2 CC114878-

CO2 CC114878-

CO2 Calibration Pre High Cylinder Instrument Response 9.85 9.84 9.87 9.853 Calibration Pre High Cylinder Bias 0 -0.05 0.1 0.017 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID ZERO-CO2 ZERO-CO2 ZERO-CO2 Calibration Post Zero Cylinder Instrument Response 0.02 0.06 0.07 0.050 Calibration Post Zero Cylinder Bias 0.1 0.3 0.35 0.250 Calibration Post Zero Cylinder Drift 0.1 0.2 0.05 0.117 Calibration Post High Cylinder ID CC114878- CO2 CC114878-

CO2 CC114878-

CO2 Calibration Post High Cylinder Instrument Response 9.84 9.87 9.89 9.867 Calibration Post High Cylinder Bias -0.05 0.1 0.2 0.083 Calibration Post High Cylinder Drift 10.85 0.15 0.1 3.700 Cavg 12.01 12.1 12 12.037 Cavg Units %vd %vd %vd Cgas 11.9902 12.0747 11.9496 12.005 Cgas Units %vd %vd %vd Fuel Type Coal - Bituminous Coal -

Bituminous Coal -

Bituminous
Fw 10640 10640 1064010,640.000
Fc 1800 1800 1800 1,800.000 Cgasw 0 0 0 0.000 Cgasw Units



### Wednesday, January 19, 2011 Page 24 of 24

### Mitchell Unit 1

6/30/2010

Location Stack - Method 3A O2 Average Run Number 1 2 3
Test Date 3/31/2010 3/31/2010 3/31/2010 Run Start Time 8:31:00 AM10:20:00 AM11:59:00 AM Run Finish Time 9:49:00 AM11:37:00 AM 1:16:00 PM Carbon Dioxide, % 12.1 12.1 12 12.067 Oxygen, % 6.7 6.7 6.8 6.733 Fuel Factor 1.17 1.17 1.18 Dry Volumetric Flow Rate, dry scfm 1964044 1957809 19612381,961,030.3 33 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Moisture, % 13.4 13.7 13.9 13.667 Analyzer Make ServoMex ServoMex ServoMex Analyzer Model 01440D1 01440D1 01440D114,400.000 Analyzer Serial Number 3790 3790 3790 3,790.000 Operating Range 25 25 25 25.000 Operating Units % % % No. Readings/Avg. 78 77 77 77.333 Calibration Set 1 1 1 1.000 Calibration Pre Zero Cylinder ID ZERO-O2 ZERO-O2 ZERO-O2 Calibration Pre Zero Cylinder Instrument Response 0 0 -0.01 -0.003 Calibration Pre Zero Cylinder Bias 0 0 -0.04 -0.013 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CC114878-O2 CC114878- O2 CC114878-

O2 Calibration Pre High Cylinder Instrument Response 12.01 12 11.97 11.993 Calibration Pre High Cylinder Bias 0 -0.04 -0.16 -0.067 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID ZERO-O2 ZERO-O2 ZERO-O2 Calibration Post Zero Cylinder Instrument Response 0 0 -0.01 -0.003 Calibration Post Zero Cylinder Bias 0 0 -0.04 -0.013 Calibration Post Zero Cylinder Drift 0 0 0 0.000 Calibration Post High Cylinder ID CC114878-O2 CC114878- O2 CC114878-

O2 Calibration Post High Cylinder Instrument Response 12 11.97 11.99 11.987 Calibration Post High Cylinder Bias -0.04 -0.16 -0.08 -0.093 Calibration Post High Cylinder Drift 0.04 0.12 0.08 0.080 Cavg 6.7 6.7 6.8 6.733 Cavg Units %vd %vd %vd Cgas 6.6916 6.7028 6.81 6.735 Cgas Units %vd %vd %vd Fuel Type Coal - Bituminous Coal -

Bituminous Coal -

Bituminous
Fw 10640 10640 1064010,640.000
Fc 1800 1800 1800 1,800.000 Cgasw 0 0 0 0.000 Cgasw Units



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