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 2 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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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 2 Unit 2

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/NAIS 221112

Sampling Location Information:

Test Parameter Information: AFS #: FRS #:

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 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

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6/30/2010 Sampling / Stack Data Results Summary

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

Test Date 4/1/2010 4/1/2010 4/1/2010

Run Start Time 8:05:00 AM 9:50:00 AM 11:29:00 AM

Run Finish Time 9:21:00 AM 11:04:00 AM 12:44:00 PM

Net Run Time, minutes 60 60 60 Dry Gas Meter Volume Sampled, dscf 45.271 43.903 44.350 44.508
Moisture Content of Stack Gas, % 13.66 14.26 15.44 14.453 Moisture Saturation at Stack Gas Temperature, % 12.94 13.23 13.02 13.063
Carbon Dioxide, % 12.3 12.8 12.8 12.633 Oxygen, % 6.2 6 5.9 6.033 Average Stack Gas Temperature, °F 122.58 123.42 122.83 122.943 Dry Volumetric Flow Rate, dry scfm 1,966,805.0 1,918,071.4 1,929,990.2 1,938,288.86 7
Actual Wet Volumetric Flue Gas Flow Rate, acfm 2,610,451.6 2,557,065.9 2,564,147.7 2,577,221.73 3 Percent Isokinetic of Sampling Rate, % 102.2 101.6 102.0 101.933
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 - 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 - 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

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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 1.22E-02 1.24E-02 1.22E-02 0.012

Compound: Hydrogen Fluoride Average RunNumber M26A-1 M26A-2 M26A-3 Mass_mg 12 12 12 12.000 lb/mmBtuO2 8.13E-03 8.27E-03 8.13E-03 0.008

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Process Run Data

Run Name Value UOM Comments Target Value
1 Bituminous Coal Burned 253.4 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. 260

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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 3517 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. 3520

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1 Fuel Flow 253.4 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. 260

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1 Opacity 5.8 % 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 253.4 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. 260

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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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2 Steam Pressure 3517 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. 3520

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2 Fuel Flow 253.4 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. 260

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2 Opacity 5.8 % 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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3 Bituminous Coal Burned 253.4 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. 260

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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

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3 Steam Pressure 3517 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. 3520

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3 Fuel Flow 253.4 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. 260

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APCD Run Data

Process Lab Run Data 3 Opacity 5.8 % 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 5.8 Opacity % 10

2 ELECTROSTATIC PRECIPITATOR - HIGH EFFICIENCY 5.8 Opacity % 10

3 ELECTROSTATIC PRECIPITATOR - HIGH EFFICIENCY 5.8 Opacity % 10

1 SCR (SELECTIVE CATALYTIC REDUCTION) 3210 lb/hr 3200

2 SCR (SELECTIVE CATALYTIC REDUCTION) 3210 lb/hr 3200

3 SCR (SELECTIVE CATALYTIC REDUCTION) 3210 lb/hr 3200

1 SCRUBBER 0.04 lb/mmBTU 0.1

2 SCRUBBER 0.04 lb/mmBTU 0.1

3 SCRUBBER 0.04 lb/mmBTU 0.1

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Sampling / Stack Data Results Detail

Location Stack - Method 26A Average Run Number M26A-1 M26A-2 M26A-3
Test Date 4/1/2010 4/1/2010 4/1/2010 Run Start Time 8:05:00 AM 9:50:00 AM 11:29:00 AM Run Finish Time 9:21:00 AM 11:04:00 AM 12:44:00 PM Net Traversing Points 16 16 16 Net Run Time, minutes 60 60 60 Nozzle Diameter, inches 0.25 0.25 0.25 0.250 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 1.59 1.42 1.60 1.537 Dry Gas Meter Volume Sampled, cubic feet 48.548 47.388 47.979 47.972 Average Dry Gas Meter Temperature, °F 86.96 90.29 91.79 89.680 Dry Gas Meter Volume Sampled, dscf 45.271 43.903 44.350 44.508 Total Moisture Liquid collected, g 152.1 155 172.1 159.733 Volume of Water Vapor, standard cubic feet 7.16 7.30 8.10 7.520 Moisture Content of Stack Gas, % 13.66 14.26 15.44 14.453 Moisture Saturation at Stack Gas Temperature, % 12.94 13.23 13.02 13.063 Dry Mole Fraction 0.8706 0.8677 0.8698 0.869 Carbon Dioxide, % 12.3 12.8 12.8 12.633 Oxygen, % 6.2 6 5.9 6.033 Carbon Monoxide & Nitrogen, % 81.5 81.2 81.3 81.333 Fuel Factor 1.20 1.16 1.17 Dry Molecular Weight, lb/lb-Mole 30.22 30.29 30.28 30.263 Wet Molecular weight, lb/lb-Mole 28.77 28.85 29.12 28.913 Flue Gas Static Pressure, inches of H2O -1.3 -1.2 -1.2 -1.233 Absolute Flue Gas Pressure, inches of Mercury 28.57 28.58 28.58 28.577 Average Stack Gas Temperature, °F 122.58 123.42 122.83 122.943 Average Velocity Head, inches of H2O 0.6283730552 25402 0.603779120

922277 0.613571438

553868 0.615

Average Stack Gas Velocity, feet/second 47.92 46.94 47.07 47.310 Stack Cross-Sectional Area, square feet 907.920 907.920 907.920 907.920 Dry Volumetric Flow Rate, dry scfm 1,966,805.0 1,918,071.4 1,929,990.2 1,938,288.8 67 Actual Wet Volumetric Flue Gas Flow Rate, acfm 2,610,451.6 2,557,065.9 2,564,147.7 2,577,221.7 33 Percent Isokinetic of Sampling Rate, % 102.2 101.6 102.0 101.933 Percent Excess Air, % 40.5 38.9 37.9 39.100 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 10640 10,640.000
Fc 1800 1800 1800 1,800.000

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Location Stack - 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 - 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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