### Name: John K. Ekas, IV

Title: Production Manager Company: Allegheny Energy Supply Company, L Sign Date: 9/17/2010 Name: Kenneth Loder Title: Project Manager Company: TRC Companies, Inc. Sign Date: 9/17/2010 Permitted Facility Representative / Date Testing Company Representative / Date



## Utility Boiler MACT ICR - Mitchell Power Station Units 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.

Saturday, January 15, 2011 Page 1 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010 Facility Information:
Mitchell Power Station 50 Electric Way

Courtney PA 15067 Contact: John S. Stepan
Phone: 724-838-6155
Fax: 724-830-7869
Email: JSTEPAN@alleghenyenergy.com Testing Company: TRC Companies, Inc.
5540 Centerview Drive
Suite 100 Raleigh NC 27606 Contact: Kenneth Loder
Phone: 919-256-6239
Fax: 919-838-9661
Email: kloder@trcsolutions.com

Air Permit Number: 3181 Permitted Source ID/Name: 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: Mitchell Boiler Unit 1 was originally designed to burn coal as their primary fuel. In 1994 the unit was modified to burn No. 2 fuel oil. The unit has a gross rated capacity of 82 megawatts. Industry/SCC/NAIS 221112

Sampling Location Information:

Test Parameter Information: AFS #: 4212500037 FRS #: 110010265961

SCC / Description 10100501 External Combustion Boilers - Electric Generation - Distillate Oil - Grades 1 and 2 Oil

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
Unit 1 Stack Exit 298 3180 2940 4 0 3 0 0

Target Parameter Test Method Number of

Test Runs Test Run

Duration Sample

Points Comments Location
Carbon Monoxide Method 10 3 120 0 Unit 1 Stack Exit 2,3,7,8-TCDD Method 23 3 480 0 Unit 1 Stack Exit 1,2,3,7,8-PeCDD Method 23 3 480 0 Unit 1 Stack Exit



### Saturday, January 15, 2011 Page 2 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010 1,2,3,4,7,8-HxCDD Method 23 3 480 0 Unit 1 Stack Exit 1,2,3,6,7,8-HxCDD Method 23 3 480 0 Unit 1 Stack Exit 1,2,3,7,8,9-HxCDD Method 23 3 480 0 Unit 1 Stack Exit 1,2,3,4,6,7,8-HpCDD Method 23 3 480 0 Unit 1 Stack Exit OCDD Method 23 3 480 0 Unit 1 Stack Exit 2,3,7,8-TCDF Method 23 3 480 0 Unit 1 Stack Exit 1,2,3,7,8-PeCDF Method 23 3 480 0 Unit 1 Stack Exit 2,3,4,7,8-PeCDF Method 23 3 480 0 Unit 1 Stack Exit 1,2,3,4,7,8-HxCDF Method 23 3 480 0 Unit 1 Stack Exit 1,2,3,6,7,8-HxCDF Method 23 3 480 0 Unit 1 Stack Exit 2,3,4,6,7,8-HxCDF Method 23 3 480 0 Unit 1 Stack Exit 1,2,3,7,8,9-HxCDF Method 23 3 480 0 Unit 1 Stack Exit 1,2,3,4,6,7,8-HpCDF Method 23 3 480 0 Unit 1 Stack Exit 1,2,3,4,7,8,9-HpCDF Method 23 3 480 0 Unit 1 Stack Exit OCDF Method 23 3 480 0 Unit 1 Stack Exit Other TCDD Method 23 3 480 0 Unit 1 Stack Exit Other PeCDD Method 23 3 480 0 Unit 1 Stack Exit Other HxCDD Method 23 3 480 0 Unit 1 Stack Exit Other HpCDD Method 23 3 480 0 Unit 1 Stack Exit Other TCDF Method 23 3 480 0 Unit 1 Stack Exit Other PeCDF Method 23 3 480 0 Unit 1 Stack Exit Other HxCDF Method 23 3 480 0 Unit 1 Stack Exit Other HpCDF Method 23 3 480 0 Unit 1 Stack Exit Total Dioxins Method 23 3 480 0 Unit 1 Stack Exit Total Furans Method 23 3 480 0 Unit 1 Stack Exit 3,3',4,4'-TCB (PCB77) Method 23 3 480 0 Unit 1 Stack Exit 3,4,4',5-TCB (PCB81) Method 23 3 480 0 Unit 1 Stack Exit 2,3,3',4,4'-PeCB (PCB105) Method 23 3 480 0 Unit 1 Stack Exit



### Saturday, January 15, 2011 Page 3 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010 2,3,4,4',5-PeCB (PCB114) Method 23 3 480 0 Unit 1 Stack Exit 2,3',4,4',5-PeCB (PCB118) Method 23 3 480 0 Unit 1 Stack Exit 2',3,4,4',5-PeCB (PCB123) Method 23 3 480 0 Unit 1 Stack Exit 3,3',4,4',5-PeCB (PCB126) Method 23 3 480 0 Unit 1 Stack Exit 2,3,3',4,4',5/2,3,3',4,4',5'-

HxCB (PCBs156/157) Method 23 3 480 0 Unit 1 Stack Exit 2,3',4,4',5,5'-HxCB (PCB167) Method 23 3 480 0 Unit 1 Stack Exit 3,3',4,4',5,5'-HxCB (PCB169) Method 23 3 480 0 Unit 1 Stack Exit 2,3,3',4,4',5,5'-HpCB

(PCB189) Method 23 3 480 0 Unit 1 Stack Exit Total organic compounds

(TOC) as Propane Method 25A 3 120 0 NMHC emissions only. Methane emissions reported in excel template. Unit 1 Stack Exit

Hydrogen Fluoride Method 26A 3 60 0 Unit 1 Stack Exit Hydrogen Chloride Method 26A 3 60 0 Unit 1 Stack Exit Filterable PM2.5 OTM - 27/28 3 240 0 Unit 1 Stack Exit Total PM2.5 OTM - 27/28 3 240 0 Unit 1 Stack Exit Inorganic (Aqueous)

Condensible Part. OTM - 27/28 3 240 0 Unit 1 Stack Exit Organic Condensible

Particulate OTM - 27/28 3 240 0 Unit 1 Stack Exit Total Particulate OTM - 27/28 3 240 0 Unit 1 Stack Exit Filterable Particulate OTM - 27/28 3 240 0 Unit 1 Stack Exit Selenium Method 29 3 240 0 Unit 1 Stack Exit Filterable Particulate Method 29 3 240 0 Unit 1 Stack Exit Nickel Method 29 3 240 0 Unit 1 Stack Exit Cobalt Method 29 3 240 0 Unit 1 Stack Exit Chromium Method 29 3 240 0 Unit 1 Stack Exit Beryllium Method 29 3 240 0 Unit 1 Stack Exit Cadmium Method 29 3 240 0 Unit 1 Stack Exit Arsenic Method 29 3 240 0 Unit 1 Stack Exit Manganese Method 29 3 240 0 Unit 1 Stack Exit Antimony Method 29 3 240 0 Unit 1 Stack Exit



### Saturday, January 15, 2011 Page 4 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010
Lead Method 29 3 240 0 Unit 1 Stack Exit Sulfur Dioxide Method 6C 3 60 0 Unit 1 Stack Exit Nitrogen oxides (NOx) Method 7E 3 60 0 Unit 1 Stack Exit Carbon Monoxide Method 10 3 120 0 Unit 3 Stack Exit 2,3,7,8-TCDD Method 23 3 480 0 Unit 3 Stack Exit 1,2,3,7,8-PeCDD Method 23 3 480 0 Unit 3 Stack Exit 1,2,3,4,7,8-HxCDD Method 23 3 480 0 Unit 3 Stack Exit 1,2,3,6,7,8-HxCDD Method 23 3 480 0 Unit 3 Stack Exit 1,2,3,7,8,9-HxCDD Method 23 3 480 0 Unit 3 Stack Exit 1,2,3,4,6,7,8-HpCDD Method 23 3 480 0 Unit 3 Stack Exit OCDD Method 23 3 480 0 Unit 3 Stack Exit 2,3,7,8-TCDF Method 23 3 480 0 Unit 3 Stack Exit 1,2,3,7,8-PeCDF Method 23 3 480 0 Unit 3 Stack Exit 2,3,4,7,8-PeCDF Method 23 3 480 0 Unit 3 Stack Exit 1,2,3,4,7,8-HxCDF Method 23 3 480 0 Unit 3 Stack Exit 1,2,3,6,7,8-HxCDF Method 23 3 480 0 Unit 3 Stack Exit 2,3,4,6,7,8-HxCDF Method 23 3 480 0 Unit 3 Stack Exit 1,2,3,7,8,9-HxCDF Method 23 3 480 0 Unit 3 Stack Exit 1,2,3,4,6,7,8-HpCDF Method 23 3 480 0 Unit 3 Stack Exit 1,2,3,4,7,8,9-HpCDF Method 23 3 480 0 Unit 3 Stack Exit OCDF Method 23 3 480 0 Unit 3 Stack Exit Other TCDD Method 23 3 480 0 Unit 3 Stack Exit Other PeCDD Method 23 3 480 0 Unit 3 Stack Exit Other HxCDD Method 23 3 480 0 Unit 3 Stack Exit Other HpCDD Method 23 3 480 0 Unit 3 Stack Exit Other TCDF Method 23 3 480 0 Unit 3 Stack Exit Other PeCDF Method 23 3 480 0 Unit 3 Stack Exit Other HxCDF Method 23 3 480 0 Unit 3 Stack Exit



### Saturday, January 15, 2011 Page 5 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010 Other HpCDF Method 23 3 480 0 Unit 3 Stack Exit Total Dioxins Method 23 3 480 0 Unit 3 Stack Exit Total Furans Method 23 3 480 0 Unit 3 Stack Exit 3,3',4,4'-TCB (PCB77) Method 23 3 480 0 Unit 3 Stack Exit 3,4,4',5-TCB (PCB81) Method 23 3 480 0 Unit 3 Stack Exit 2,3,3',4,4'-PeCB (PCB105) Method 23 3 480 0 Unit 3 Stack Exit 2,3,4,4',5-PeCB (PCB114) Method 23 3 480 0 Unit 3 Stack Exit 2,3',4,4',5-PeCB (PCB118) Method 23 3 480 0 Unit 3 Stack Exit 2',3,4,4',5-PeCB (PCB123) Method 23 3 480 0 Unit 3 Stack Exit 3,3',4,4',5-PeCB (PCB126) Method 23 3 480 0 Unit 3 Stack Exit 2,3,3',4,4',5/2,3,3',4,4',5'-

HxCB (PCBs156/157) Method 23 3 480 0 Unit 3 Stack Exit 2,3',4,4',5,5'-HxCB (PCB167) Method 23 3 480 0 Unit 3 Stack Exit 3,3',4,4',5,5'-HxCB (PCB169) Method 23 3 480 0 Unit 3 Stack Exit 2,3,3',4,4',5,5'-HpCB

(PCB189) Method 23 3 480 0 Unit 3 Stack Exit Total organic compounds

(TOC) as Propane Method 25A 3 120 0 NMHC emissions only. Methane emissions reported in excel template. Unit 3 Stack Exit

Hydrogen Chloride Method 26A 3 60 0 Unit 3 Stack Exit Hydrogen Fluoride Method 26A 3 60 0 Unit 3 Stack Exit Total Particulate OTM - 27/28 3 240 0 Unit 3 Stack Exit Filterable PM2.5 OTM - 27/28 3 240 0 Unit 3 Stack Exit Total PM2.5 OTM - 27/28 3 240 0 Unit 3 Stack Exit Filterable Particulate OTM - 27/28 3 240 0 Unit 3 Stack Exit Organic Condensible

Particulate OTM - 27/28 3 240 0 Unit 3 Stack Exit Inorganic (Aqueous)

Condensible Part. OTM - 27/28 3 240 0 Unit 3 Stack Exit Cadmium Method 29 3 240 0 Unit 3 Stack Exit Antimony Method 29 3 240 0 Unit 3 Stack Exit Manganese Method 29 3 240 0 Unit 3 Stack Exit Beryllium Method 29 3 240 0 Unit 3 Stack Exit



### Saturday, January 15, 2011 Page 6 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010

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.

Chromium Method 29 3 240 0 Unit 3 Stack Exit Lead Method 29 3 240 0 Unit 3 Stack Exit Selenium Method 29 3 240 0 Unit 3 Stack Exit Filterable Particulate Method 29 3 240 0 Unit 3 Stack Exit Nickel Method 29 3 240 0 Unit 3 Stack Exit Cobalt Method 29 3 240 0 Unit 3 Stack Exit Arsenic Method 29 3 240 0 Unit 3 Stack Exit Sulfur Dioxide Method 6C 3 60 0 Unit 3 Stack Exit Nitrogen oxides (NOx) Method 7E 3 60 0 Unit 3 Stack Exit



### Saturday, January 15, 2011 Page 7 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010 Sampling / Stack Data Results Summary



### Location Unit 1 Stack Exit - Method 10 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 Unit 1 Stack Exit - Method 23 Average Run Number 1 2 3
Test Date 7/20/2010 7/21/2010 7/22/2010
Run Start Time 10:50:00 AM 6:27:00 AM 7:27:00 AM

Run Finish Time 8:01:00 PM 8:20:00 PM 4:02:00 PM Net Run Time, minutes 480 480 480 Dry Gas Meter Volume Sampled, dscf 281.481 268.371 272.387 274.080 Moisture Content of Stack Gas, % 7.18 6.75 6.58 6.837 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Carbon Dioxide, % 4.96 4.31 4.72 4.663 Oxygen, % 14.19 14.86 14.22 14.423 Average Stack Gas Temperature, °F 301.00 301.54 301.08 301.207 Dry Volumetric Flow Rate, dry scfm 132,847.8 130,162.3 128,235.1 130,415.067 Actual Wet Volumetric Flue Gas Flow Rate, acfm 215,051.8 207,496.0 203,718.0 208,755.267 Percent Isokinetic of Sampling Rate, % 101.3 97.7 100.6 99.867 F-Factor, dscfm/MMBtu @ %O2 9190 9190 9190 9,190.000
Fw 10320 10320 10320 10,320.000
Fc 1420 1420 1420 1,420.000



### Saturday, January 15, 2011 Page 8 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010

Location Unit 1 Stack Exit - Method 25A 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 Unit 1 Stack Exit - Method 26A Average Run Number
Test Date
Run Start Time
Run Finish Time Net Run Time, minutes Dry Gas Meter Volume Sampled, dscf Moisture Content of Stack Gas, % Moisture Saturation at Stack Gas Temperature, % Carbon Dioxide, % Oxygen, % Average Stack Gas Temperature, °F Dry Volumetric Flow Rate, dry scfm Actual Wet Volumetric Flue Gas Flow Rate, acfm Percent Isokinetic of Sampling Rate, % F-Factor, dscfm/MMBtu @ %O2
Fw
Fc



### Saturday, January 15, 2011 Page 9 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010

Location Unit 1 Stack Exit - Method 29 Average Run Number
Test Date
Run Start Time
Run Finish Time Net Run Time, minutes Dry Gas Meter Volume Sampled, dscf Moisture Content of Stack Gas, % Moisture Saturation at Stack Gas Temperature, % Carbon Dioxide, % Oxygen, % Average Stack Gas Temperature, °F Dry Volumetric Flow Rate, dry scfm Actual Wet Volumetric Flue Gas Flow Rate, acfm Percent Isokinetic of Sampling Rate, % F-Factor, dscfm/MMBtu @ %O2
Fw
Fc



### Location Unit 1 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



### Saturday, January 15, 2011 Page 10 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010

Location Unit 1 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



### Location Unit 1 Stack Exit - OTM - 27/28 Average Run Number
Test Date
Run Start Time
Run Finish Time Net Run Time, minutes Dry Gas Meter Volume Sampled, dscf Moisture Content of Stack Gas, % Moisture Saturation at Stack Gas Temperature, % Carbon Dioxide, % Oxygen, % Average Stack Gas Temperature, °F Dry Volumetric Flow Rate, dry scfm Actual Wet Volumetric Flue Gas Flow Rate, acfm Percent Isokinetic of Sampling Rate, % F-Factor, dscfm/MMBtu @ %O2
Fw
Fc



### Saturday, January 15, 2011 Page 11 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010 Emissions Summary



### Location: Unit 1 Stack Exit - Method 10 Compound: Carbon Monoxide Average Run 1 2 3 lb/mmBtuO2 5.34E-05 1.81E-03 1.85E-03 0.001 ppm 3.53E-02 9.28E-01 9.43E-01 0.635 ppm@7%O2 5.32E-02 1.81E+00 1.84E+00 1.234



### Location: Unit 1 Stack Exit - Method 23 Compound: 1,2,3,4,6,7,8-HpCDD Average RunNumber 1 2 3 Mass_mg 0.000000014 0.000000012 0.0000000129 0.000 lb/mmBtuO2 3.14E-12 3.13E-12 3.00E-12 0.000 ng/dscm 1.76E-03 1.58E-03 1.67E-03 0.002 ng/dscm@7%O2 3.65E-03 3.64E-03 3.48E-03 0.004


### Compound: 1,2,3,4,6,7,8-HpCDF Average RunNumber 1 2 3 Mass_mg 0.0000000057 0.0000000105 0.00000000448 0.000 lb/mmBtuO2 1.28E-12 2.74E-12 1.04E-12 0.000 ng/dscm 7.15E-04 1.38E-03 5.81E-04 0.001 ng/dscm@7%O2 1.48E-03 3.18E-03 1.21E-03 0.002


### Compound: 1,2,3,4,7,8,9-HpCDF Average RunNumber 1 2 3 Mass_mg 0.0000000019 0.00000000253 0.00000000256 0.000 lb/mmBtuO2 4.26E-13 6.61E-13 5.96E-13 0.000 ng/dscm 2.38E-04 3.33E-04 3.32E-04 0.000 ng/dscm@7%O2 4.93E-04 7.66E-04 6.91E-04 0.001


### Compound: 1,2,3,4,7,8-HxCDD Average RunNumber 1 2 3 Mass_mg 0.00000000187 0.00000000161 0.00000000137 0.000 lb/mmBtuO2 4.19E-13 4.21E-13 3.19E-13 0.000 ng/dscm 2.35E-04 2.12E-04 1.78E-04 0.000 ng/dscm@7%O2 4.87E-04 4.88E-04 3.70E-04 0.000


### Compound: 1,2,3,4,7,8-HxCDF Average RunNumber 1 2 3 Mass_mg 0.00000000449 0.00000000835 0.00000000381 0.000 lb/mmBtuO2 1.01E-12 2.18E-12 8.87E-13 0.000 ng/dscm 5.63E-04 1.10E-03 4.94E-04 0.001 ng/dscm@7%O2 1.17E-03 2.53E-03 1.03E-03 0.002


### Compound: 1,2,3,6,7,8-HxCDD Average


### Saturday, January 15, 2011 Page 12 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010
RunNumber 1 2 3 Mass_mg 0.00000000199 0.00000000231 0.00000000164 0.000 lb/mmBtuO2 4.46E-13 6.03E-13 3.82E-13 0.000 ng/dscm 2.50E-04 3.04E-04 2.13E-04 0.000 ng/dscm@7%O2 5.18E-04 7.00E-04 4.43E-04 0.001


### Compound: 1,2,3,6,7,8-HxCDF Average RunNumber 1 2 3 Mass_mg 0.00000000224 0.00000000434 0.00000000213 0.000 lb/mmBtuO2 5.02E-13 1.13E-12 4.96E-13 0.000 ng/dscm 2.81E-04 5.71E-04 2.76E-04 0.000 ng/dscm@7%O2 5.82E-04 1.31E-03 5.74E-04 0.001


### Compound: 1,2,3,7,8,9-HxCDD Average RunNumber 1 2 3 Mass_mg 0.00000000274 0.00000000345 0.00000000215 0.000 lb/mmBtuO2 6.14E-13 9.01E-13 5.00E-13 0.000 ng/dscm 3.44E-04 4.54E-04 2.79E-04 0.000 ng/dscm@7%O2 7.13E-04 1.04E-03 5.81E-04 0.001


### Compound: 1,2,3,7,8,9-HxCDF Average RunNumber 1 2 3 Mass_mg 0.000000000653 0.00000000134 0.000000000784 0.000 lb/mmBtuO2 1.46E-13 3.50E-13 1.82E-13 0.000 ng/dscm 8.19E-05 1.76E-04 1.02E-04 0.000 ng/dscm@7%O2 1.70E-04 4.05E-04 2.12E-04 0.000


### Compound: 1,2,3,7,8-PeCDD Average RunNumber 1 2 3 Mass_mg 0.00000000184 0.00000000192 0.00000000129 0.000 lb/mmBtuO2 4.13E-13 5.02E-13 3.00E-13 0.000 ng/dscm 2.31E-04 2.53E-04 1.67E-04 0.000 ng/dscm@7%O2 4.79E-04 5.82E-04 3.48E-04 0.000


### Compound: 1,2,3,7,8-PeCDF Average RunNumber 1 2 3 Mass_mg 0.00000000414 0.00000000548 0.0000000045 0.000 lb/mmBtuO2 9.28E-13 1.43E-12 1.05E-12 0.000 ng/dscm 5.19E-04 7.21E-04 5.84E-04 0.001 ng/dscm@7%O2 1.08E-03 1.66E-03 1.22E-03 0.001


### Compound: 2,3,3',4,4',5,5'-HpCB (PCB189) Average RunNumber 1 2 3 Mass_mg 0.00000003 0.0000000177 0.0000000287 0.000 lb/mmBtuO2 6.73E-12 4.62E-12 6.68E-12 0.000 ng/dscm 3.76E-03 2.33E-03 3.72E-03 0.003 ng/dscm@7%O2 7.79E-03 5.36E-03 7.74E-03 0.007



### Saturday, January 15, 2011 Page 13 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010 Compound: 2,3,3',4,4',5/2,3,3',4,4',5'-HxCB (PC Average RunNumber 1 2 3 Mass_mg 0.000000252 0.0000002657 0.000000435 0.000 lb/mmBtuO2 5.65E-11 6.94E-11 1.01E-10 0.000 ng/dscm 3.16E-02 3.50E-02 5.64E-02 0.041 ng/dscm@7%O2 6.55E-02 8.05E-02 1.17E-01 0.088


### Compound: 2,3,3',4,4'-PeCB (PCB105) Average RunNumber 1 2 3 Mass_mg 0.00000269 0.00000211 0.00000284 0.000 lb/mmBtuO2 6.03E-10 5.51E-10 6.61E-10 0.000 ng/dscm 3.38E-01 2.78E-01 3.68E-01 0.328 ng/dscm@7%O2 7.00E-01 6.40E-01 7.66E-01 0.702


### Compound: 2,3',4,4',5,5'-HxCB (PCB167) Average RunNumber 1 2 3 Mass_mg 0.00000012 0.000000113 0.000000271 0.000 lb/mmBtuO2 2.69E-11 2.95E-11 6.31E-11 0.000 ng/dscm 1.51E-02 1.49E-02 3.51E-02 0.022 ng/dscm@7%O2 3.13E-02 3.43E-02 7.30E-02 0.046


### Compound: 2,3,4,4',5-PeCB (PCB114) Average RunNumber 1 2 3 Mass_mg 0.000000243 0.000000167 0.000000243 0.000 lb/mmBtuO2 5.45E-11 4.36E-11 5.66E-11 0.000 ng/dscm 3.05E-02 2.20E-02 3.15E-02 0.028 ng/dscm@7%O2 6.32E-02 5.06E-02 6.55E-02 0.060


### Compound: 2,3',4,4',5-PeCB (PCB118) Average RunNumber 1 2 3 Mass_mg 0.00000873 0.00000645 0.0000102 0.000 lb/mmBtuO2 1.96E-09 1.68E-09 2.37E-09 0.000 ng/dscm 1.10E+00 8.49E-01 1.32E+00 1.090 ng/dscm@7%O2 2.28E+00 1.95E+00 2.75E+00 2.327


### Compound: 2',3,4,4',5-PeCB (PCB123) Average RunNumber 1 2 3 Mass_mg 0.000000261 0.000000186 0.000000285 0.000 lb/mmBtuO2 5.85E-11 4.86E-11 6.63E-11 0.000 ng/dscm 3.28E-02 2.45E-02 3.70E-02 0.031 ng/dscm@7%O2 6.79E-02 5.64E-02 7.70E-02 0.067


### Compound: 2,3,4,6,7,8-HxCDF Average RunNumber 1 2 3 Mass_mg 0.00000000198 0.00000000261 0.00000000141 0.000 lb/mmBtuO2 4.44E-13 6.82E-13 3.28E-13 0.000



### Saturday, January 15, 2011 Page 14 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010 ng/dscm 2.48E-04 3.43E-04 1.83E-04 0.000 ng/dscm@7%O2 5.14E-04 7.89E-04 3.81E-04 0.001


### Compound: 2,3,4,7,8-PeCDF Average RunNumber 1 2 3 Mass_mg 0.00000000297 0.00000000534 0.00000000474 0.000 lb/mmBtuO2 6.66E-13 1.39E-12 1.10E-12 0.000 ng/dscm 3.73E-04 7.03E-04 6.15E-04 0.001 ng/dscm@7%O2 7.73E-04 1.62E-03 1.28E-03 0.001


### Compound: 2,3,7,8-TCDD Average RunNumber 1 2 3 Mass_mg 0.00000000186 0.00000000178 0.00000000122 0.000 lb/mmBtuO2 4.17E-13 4.65E-13 2.84E-13 0.000 ng/dscm 2.33E-04 2.34E-04 1.58E-04 0.000 ng/dscm@7%O2 4.83E-04 5.39E-04 3.29E-04 0.000


### Compound: 2,3,7,8-TCDF Average RunNumber 1 2 3 Mass_mg 0.00000000565 0.00000000542 0.0000000162 0.000 lb/mmBtuO2 1.27E-12 1.42E-12 3.77E-12 0.000 ng/dscm 7.09E-04 7.13E-04 2.10E-03 0.001 ng/dscm@7%O2 1.47E-03 1.64E-03 4.37E-03 0.002


### Compound: 3,3',4,4',5,5'-HxCB (PCB169) Average RunNumber 1 2 3 Mass_mg 0.0000000121 0.00000000799 0.00000000919 0.000 lb/mmBtuO2 2.71E-12 2.09E-12 2.14E-12 0.000 ng/dscm 1.52E-03 1.05E-03 1.19E-03 0.001 ng/dscm@7%O2 3.15E-03 2.42E-03 2.48E-03 0.003


### Compound: 3,3',4,4',5-PeCB (PCB126) Average RunNumber 1 2 3 Mass_mg 0.0000000601 0.0000000473 0.0000000851 0.000 lb/mmBtuO2 1.35E-11 1.24E-11 1.98E-11 0.000 ng/dscm 7.54E-03 6.23E-03 1.10E-02 0.008 ng/dscm@7%O2 1.56E-02 1.43E-02 2.29E-02 0.018


### Compound: 3,3',4,4'-TCB (PCB77) Average RunNumber 1 2 3 Mass_mg 0.00000192 0.00000159 0.00000234 0.000 lb/mmBtuO2 4.30E-10 4.15E-10 5.45E-10 0.000 ng/dscm 2.41E-01 2.09E-01 3.03E-01 0.251 ng/dscm@7%O2 4.99E-01 4.81E-01 6.30E-01 0.537


### Compound: 3,4,4',5-TCB (PCB81) Average RunNumber 1 2 3



### Saturday, January 15, 2011 Page 15 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010 Mass_mg 0.00000013 0.000000103 0.000000145 0.000 lb/mmBtuO2 2.91E-11 2.69E-11 3.37E-11 0.000 ng/dscm 1.63E-02 1.36E-02 1.88E-02 0.016 ng/dscm@7%O2 3.38E-02 3.13E-02 3.91E-02 0.035


### Compound: OCDD Average RunNumber 1 2 3 Mass_mg 0.0000000311 0.000000032 0.0000000304 0.000 lb/mmBtuO2 6.97E-12 8.36E-12 7.07E-12 0.000 ng/dscm 3.90E-03 4.21E-03 3.94E-03 0.004 ng/dscm@7%O2 8.08E-03 9.69E-03 8.20E-03 0.009


### Compound: OCDF Average RunNumber 1 2 3 Mass_mg 0.00000000392 0.00000000811 0.00000000369 0.000 lb/mmBtuO2 8.79E-13 2.12E-12 8.59E-13 0.000 ng/dscm 4.92E-04 1.07E-03 4.78E-04 0.001 ng/dscm@7%O2 1.02E-03 2.46E-03 9.95E-04 0.001


### Compound: Other HpCDD Average RunNumber 1 2 3 Mass_mg 0.0000000252 0.0000000171 0.0000000182 0.000 lb/mmBtuO2 5.65E-12 4.47E-12 4.24E-12 0.000 ng/dscm 3.16E-03 2.25E-03 2.36E-03 0.003 ng/dscm@7%O2 6.55E-03 5.18E-03 4.91E-03 0.006


### Compound: Other HpCDF Average RunNumber 1 2 3 Mass_mg 0 0 0 0.000 lb/mmBtuO2 0.00E+00 0.00E+00 0.00E+00 0.000 ng/dscm 0.00E+00 0.00E+00 0.00E+00 0.000 ng/dscm@7%O2 0.00E+00 0.00E+00 0.00E+00 0.000


### Compound: Other HxCDD Average RunNumber 1 2 3 Mass_mg 0.0000000546 0.0000000461 0.000000044 0.000 lb/mmBtuO2 1.22E-11 1.20E-11 1.02E-11 0.000 ng/dscm 6.85E-03 6.07E-03 5.71E-03 0.006 ng/dscm@7%O2 1.42E-02 1.40E-02 1.19E-02 0.013


### Compound: Other HxCDF Average RunNumber 1 2 3 Mass_mg 0.00000000785 0.0000000174 0.00000000715 0.000 lb/mmBtuO2 1.76E-12 4.55E-12 1.66E-12 0.000 ng/dscm 9.85E-04 2.29E-03 9.27E-04 0.001 ng/dscm@7%O2 2.04E-03 5.27E-03 1.93E-03 0.003



### Saturday, January 15, 2011 Page 16 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010 Compound: Other PeCDD Average RunNumber 1 2 3 Mass_mg 0.000000114 0.0000000726 0.0000000611 0.000 lb/mmBtuO2 2.56E-11 1.90E-11 1.42E-11 0.000 ng/dscm 1.43E-02 9.55E-03 7.92E-03 0.011 ng/dscm@7%O2 2.96E-02 2.20E-02 1.65E-02 0.023


### Compound: Other PeCDF Average RunNumber 1 2 3 Mass_mg 0.0000000357 0.0000000462 0.0000000275 0.000 lb/mmBtuO2 8.00E-12 1.21E-11 6.40E-12 0.000 ng/dscm 4.48E-03 6.08E-03 3.57E-03 0.005 ng/dscm@7%O2 9.28E-03 1.40E-02 7.43E-03 0.010


### Compound: Other TCDD Average RunNumber 1 2 3 Mass_mg 0.000000144 0.000000101 0.000000093 0.000 lb/mmBtuO2 3.23E-11 2.64E-11 2.16E-11 0.000 ng/dscm 1.81E-02 1.33E-02 1.21E-02 0.015 ng/dscm@7%O2 3.75E-02 3.06E-02 2.52E-02 0.031


### Compound: Other TCDF Average RunNumber 1 2 3 Mass_mg 0.000000134 0.0000000788 0.000000134 0.000 lb/mmBtuO2 3.00E-11 2.06E-11 3.12E-11 0.000 ng/dscm 1.68E-02 1.04E-02 1.74E-02 0.015 ng/dscm@7%O2 3.48E-02 2.39E-02 3.62E-02 0.032


### Compound: Total Dioxins Average RunNumber 1 2 3 Mass_mg 0.0000003932 0.00000029187 0.00000026727 0.000 lb/mmBtuO2 8.82E-11 7.62E-11 6.22E-11 0.000 ng/dscm 4.93E-02 3.84E-02 3.47E-02 0.041 ng/dscm@7%O2 1.02E-01 8.84E-02 7.22E-02 0.088


### Compound: Total Furans Average RunNumber 1 2 3 Mass_mg 0.000000211193 0.00000019642 0.000000212954 0.000 lb/mmBtuO2 4.73E-11 5.13E-11 4.96E-11 0.000 ng/dscm 2.65E-02 2.59E-02 2.76E-02 0.027 ng/dscm@7%O2 5.49E-02 5.96E-02 5.74E-02 0.057



### Location: Unit 1 Stack Exit - Method 25A 

### Compound: Total organic compounds (TOC) as Average Run 1 2 3 lb/mmBtuO2 1.73E-03 2.04E-03 1.62E-03 0.002



### Saturday, January 15, 2011 Page 17 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010

ppm 7.28E-01 6.61E-01 5.24E-01 0.638 ppm@7%O2 1.10E+00 1.29E+00 1.02E+00 1.137



### Location: Unit 1 Stack Exit - Method 26A Compound: Hydrogen Chloride Average RunNumber 1 2 3 Mass_mg 0.0852 0.406 0.166 0.219 lb/mmBtuO2 1.91E-04 8.01E-04 2.32E-04 0.000


### Compound: Hydrogen Fluoride Average RunNumber 1 2 3 Mass_mg 0.225 0.218 0.182 0.208 lb/mmBtuO2 5.05E-04 4.30E-04 2.54E-04 0.000



### Location: Unit 1 Stack Exit - Method 29 Compound: Antimony Average RunNumber 1 2 3 Mass_mg 0.0002 0.0002 0.0002 0.000 lb/mmBtuO2 9.71E-08 8.29E-08 8.71E-08 0.000


### Compound: Arsenic Average RunNumber 1 2 3 Mass_mg 0.0005 0.0005 0.0007 0.001 lb/mmBtuO2 2.43E-07 2.07E-07 3.05E-07 0.000


### Compound: Beryllium Average RunNumber 1 2 3 Mass_mg 0.00006 0.00006 0.00006 0.000 lb/mmBtuO2 2.91E-08 2.49E-08 2.61E-08 0.000


### Compound: Cadmium Average RunNumber 1 2 3 Mass_mg 0.00019 0.0009 0.00045 0.001 lb/mmBtuO2 9.23E-08 3.73E-07 1.96E-07 0.000


### Compound: Chromium Average RunNumber 1 2 3 Mass_mg 0.0099 0.0056 0.0077 0.008 lb/mmBtuO2 4.81E-06 2.32E-06 3.35E-06 0.000


### Compound: Cobalt Average RunNumber 1 2 3 Mass_mg 0.0013 0.0006 0.0006 0.001 lb/mmBtuO2 6.31E-07 2.49E-07 2.61E-07 0.000



### Saturday, January 15, 2011 Page 18 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010 Compound: Filterable Particulate Average RunNumber 1 2 3 Mass_mg 7.3 0.8 10.6 6.233 lb/mmBtuO2 3.55E-03 3.32E-04 4.61E-03 0.003


### Compound: Lead Average RunNumber 1 2 3 Mass_mg 0.0013 0.0013 0.0021 0.002 lb/mmBtuO2 6.31E-07 5.39E-07 9.14E-07 0.000


### Compound: Manganese Average RunNumber 1 2 3 Mass_mg 0.0067 0.0052 0.0082 0.007 lb/mmBtuO2 3.25E-06 2.16E-06 3.57E-06 0.000


### Compound: Nickel Average RunNumber 1 2 3 Mass_mg 0.0154 0.0114 0.0126 0.013 lb/mmBtuO2 7.48E-06 4.73E-06 5.48E-06 0.000


### Compound: Selenium Average RunNumber 1 2 3 Mass_mg 0.006 0.002 0.002 0.003 lb/mmBtuO2 2.91E-06 8.29E-07 8.71E-07 0.000



### Location: Unit 1 Stack Exit - Method 6C 

### Compound: Sulfur Dioxide Average Run 1 2 3 lb/mmBtuO2 9.76E-02 9.71E-02 1.07E-01 0.101 ppm 1.84E+01 1.79E+01 2.76E+01 21.300 ppm@7%O2 4.25E+01 4.23E+01 4.66E+01 43.800



### Location: Unit 1 Stack Exit - Method 7E 

### Compound: Nitrogen oxides (NOx) Average Run 1 2 3 lb/mmBtuO2 1.39E-01 1.37E-01 1.42E-01 0.139 ppm 3.64E+01 3.52E+01 5.08E+01 40.800 ppm@7%O2 8.40E+01 8.32E+01 8.58E+01 84.333



### Location: Unit 1 Stack Exit - OTM - 27/28 

### Compound: Filterable Particulate Average RunNumber 1 2 3 Mass_mg 14.2 12.8 14.3 13.767 lb/mmBtuO2 6.95E-03 5.63E-03 3.07E-03 0.005


### Saturday, January 15, 2011 Page 19 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010

Process Run Data Compound: Filterable PM2.5 Average RunNumber 1 2 3 Mass_mg 13.9 11.8 13.8 13.167 lb/mmBtuO2 6.81E-03 5.19E-03 2.96E-03 0.005


### Compound: Inorganic (Aqueous) Condensible Pa Average RunNumber 1 2 3 Mass_mg 5.18 2.58 3.28 3.680 lb/mmBtuO2 2.54E-03 1.13E-03 7.03E-04 0.001


### Compound: Organic Condensible Particulate Average RunNumber 1 2 3 Mass_mg 12.32 9.12 3.82 8.420 lb/mmBtuO2 6.03E-03 4.01E-03 8.19E-04 0.004


### Compound: Total Particulate Average RunNumber 1 2 3 Mass_mg 31.7 24.5 21.3 25.833 lb/mmBtuO2 1.55E-02 1.08E-02 4.57E-03 0.010


### Compound: Total PM2.5 Average RunNumber 1 2 3 Mass_mg 31.4 23.5 20.9 25.267 lb/mmBtuO2 1.54E-02 1.03E-02 4.48E-03 0.010



### Saturday, January 15, 2011 Page 20 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010 Process Run Data

APCD Run Data

Process Lab Run Data 

### Run Name Value UOM Comments Target Value 1 Unit 1 and 3 Combined Gross Generation 30 MW Collected during testing on 7/20/10 0



### 2 Unit 1 and 3 Combined Gross Generation 30 MW Collected during testing on 7/21/10 0

3 Unit 1 and 3 Combined Gross Generation 30 MW Collected during testing on 7/22/10 0



### 4 Unit 1 and 3 Combined Gross Generation 31 MW Collected during testing on 7/23/10 0

2 Unit 3 Fuel Oil Firing Rate 39493 gallons Collected during testing on 7/21/10 0

3 Unit 3 Fuel Oil Firing Rate 38048 gallons Collected during testing on 7/22/10 0



### 4 Unit 3 Fuel Oil Firing Rate 12734 gallons Collected during testing on 7/23/10 0

1 Unit 1 Fuel Oil Firing Rate 21751 gallons Collected during testing on 7/20/10 0



### 2 Unit 1 Fuel Oil Firing Rate 29564 gallons Collected during testing on 7/21/10 0

3 Unit 1 Fuel Oil Firing Rate 29179 gallons Collected during testing on 7/22/10 0



### 4 Unit 1 Fuel Oil Firing Rate 10959 gallons Collected during testing on 7/23/10 0

Saturday, January 15, 2011 Page 21 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010 Sampling / Stack Data Results Detail



### Location Unit 1 Stack Exit - Method 10 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



### Saturday, January 15, 2011 Page 22 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010

Location Unit 1 Stack Exit - Method 23 Average Run Number 1 2 3 Test Date 7/20/2010 7/21/2010 7/22/2010 Run Start Time 10:50:00 AM 6:27:00 AM 7:27:00 AM Run Finish Time 8:01:00 PM 8:20:00 PM 4:02:00 PM Net Traversing Points 24 24 24 Net Run Time, minutes 480 480 480 Nozzle Diameter, inches 0.622 0.625 0.625 0.624 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 0.9998 0.9998 0.9998 1.000 Barometric Pressure, inches of Mercury 28.85 29.21 29.21 29.090 Average Orifice Meter Differential, inches H2O 1.35 1.19 1.21 1.250 Dry Gas Meter Volume Sampled, cubic feet 309.373 284.034 291.542 294.983 Average Dry Gas Meter Temperature, °F 101.38 87.08 93.29 93.917 Dry Gas Meter Volume Sampled, dscf 281.481 268.371 272.387 274.080 Total Moisture Liquid collected, g 462.3 413.1 407.2 427.533 Volume of Water Vapor, standard cubic feet 21.76 19.44 19.17 20.123 Moisture Content of Stack Gas, % 7.18 6.75 6.58 6.837 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Dry Mole Fraction 0.9282 0.9325 0.9342 0.932 Carbon Dioxide, % 4.96 4.31 4.72 4.663 Oxygen, % 14.19 14.86 14.22 14.423 Carbon Monoxide & Nitrogen, % 80.85 80.83 81.06 80.913 Fuel Factor 1.35 1.40 1.42 Dry Molecular Weight, lb/lb-Mole 29.36 29.28 29.32 29.320 Wet Molecular weight, lb/lb-Mole 28.54 28.52 28.58 28.547 Flue Gas Static Pressure, inches of H2O -2 -2.5 -2.1 -2.200 Absolute Flue Gas Pressure, inches of Mercury 28.70 29.03 29.06 28.930 Average Stack Gas Temperature, °F 301.00 301.54 301.08 301.207 Average Velocity Head, inches of H2O 1.1439000096 4854E-02 1.075010166

68332E-02 1.038892997

14425E-02 0.011

Average Stack Gas Velocity, feet/second 7.40 7.14 7.01 7.183 Stack Cross-Sectional Area, square feet 484.351 484.351 484.351 484.351 Dry Volumetric Flow Rate, dry scfm 132,847.8 130,162.3 128,235.1 130,415.067 Actual Wet Volumetric Flue Gas Flow Rate, acfm 215,051.8 207,496.0 203,718.0 208,755.267 Percent Isokinetic of Sampling Rate, % 101.3 97.7 100.6 99.867 Percent Excess Air, % 198.3 229.4 198.1 208.600 F-Factor, dscfm/MMBtu @ %O2 9190 9190 9190 9,190.000 Round Duct Diameter, inches 298 298 298 Rectangular Duct Width, inches 0 0 0 Rectangular Duct Length, inches 0 0 0 Fw 10320 10320 10320 10,320.000 Fc 1420 1420 1420 1,420.000



### Saturday, January 15, 2011 Page 23 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010

Location Unit 1 Stack Exit - Method 25A 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



### Saturday, January 15, 2011 Page 24 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010

Location Unit 1 Stack Exit - Method 26A Average Run Number Test Date Run Start Time Run Finish Time Net Traversing Points Net Run Time, minutes Nozzle Diameter, inches Pitot Tube Coefficient Dry Gas Meter Calibration Factor Barometric Pressure, inches of Mercury Average Orifice Meter Differential, inches H2O Dry Gas Meter Volume Sampled, cubic feet Average Dry Gas Meter Temperature, °F Dry Gas Meter Volume Sampled, dscf Total Moisture Liquid collected, g Volume of Water Vapor, standard cubic feet Moisture Content of Stack Gas, % Moisture Saturation at Stack Gas Temperature, % Dry Mole Fraction Carbon Dioxide, % Oxygen, % Carbon Monoxide & Nitrogen, % Fuel Factor Dry Molecular Weight, lb/lb-Mole Wet Molecular weight, lb/lb-Mole Flue Gas Static Pressure, inches of H2O Absolute Flue Gas Pressure, inches of Mercury Average Stack Gas Temperature, °F Average Velocity Head, inches of H2O Average Stack Gas Velocity, feet/second Stack Cross-Sectional Area, square feet Dry Volumetric Flow Rate, dry scfm Actual Wet Volumetric Flue Gas Flow Rate, acfm Percent Isokinetic of Sampling Rate, % Percent Excess Air, % F-Factor, dscfm/MMBtu @ %O2 Round Duct Diameter, inches Rectangular Duct Width, inches Rectangular Duct Length, inches Fw Fc



### Saturday, January 15, 2011 Page 25 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010

Location Unit 1 Stack Exit - Method 29 Average Run Number Test Date Run Start Time Run Finish Time Net Traversing Points Net Run Time, minutes Nozzle Diameter, inches Pitot Tube Coefficient Dry Gas Meter Calibration Factor Barometric Pressure, inches of Mercury Average Orifice Meter Differential, inches H2O Dry Gas Meter Volume Sampled, cubic feet Average Dry Gas Meter Temperature, °F Dry Gas Meter Volume Sampled, dscf Total Moisture Liquid collected, g Volume of Water Vapor, standard cubic feet Moisture Content of Stack Gas, % Moisture Saturation at Stack Gas Temperature, % Dry Mole Fraction Carbon Dioxide, % Oxygen, % Carbon Monoxide & Nitrogen, % Fuel Factor Dry Molecular Weight, lb/lb-Mole Wet Molecular weight, lb/lb-Mole Flue Gas Static Pressure, inches of H2O Absolute Flue Gas Pressure, inches of Mercury Average Stack Gas Temperature, °F Average Velocity Head, inches of H2O Average Stack Gas Velocity, feet/second Stack Cross-Sectional Area, square feet Dry Volumetric Flow Rate, dry scfm Actual Wet Volumetric Flue Gas Flow Rate, acfm Percent Isokinetic of Sampling Rate, % Percent Excess Air, % F-Factor, dscfm/MMBtu @ %O2 Round Duct Diameter, inches Rectangular Duct Width, inches Rectangular Duct Length, inches Fw Fc



### Saturday, January 15, 2011 Page 26 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010

Location Unit 1 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



### Saturday, January 15, 2011 Page 27 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010

Location Unit 1 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



### Saturday, January 15, 2011 Page 28 of 29

### Utility Boiler MACT ICR - Mitchell Power Station Units 1

9/17/2010

Location Unit 1 Stack Exit - OTM - 27/28 Average Run Number Test Date Run Start Time Run Finish Time Net Traversing Points Net Run Time, minutes Nozzle Diameter, inches Pitot Tube Coefficient Dry Gas Meter Calibration Factor Barometric Pressure, inches of Mercury Average Orifice Meter Differential, inches H2O Dry Gas Meter Volume Sampled, cubic feet Average Dry Gas Meter Temperature, °F Dry Gas Meter Volume Sampled, dscf Total Moisture Liquid collected, g Volume of Water Vapor, standard cubic feet Moisture Content of Stack Gas, % Moisture Saturation at Stack Gas Temperature, % Dry Mole Fraction Carbon Dioxide, % Oxygen, % Carbon Monoxide & Nitrogen, % Fuel Factor Dry Molecular Weight, lb/lb-Mole Wet Molecular weight, lb/lb-Mole Flue Gas Static Pressure, inches of H2O Absolute Flue Gas Pressure, inches of Mercury Average Stack Gas Temperature, °F Average Velocity Head, inches of H2O Average Stack Gas Velocity, feet/second Stack Cross-Sectional Area, square feet Dry Volumetric Flow Rate, dry scfm Actual Wet Volumetric Flue Gas Flow Rate, acfm Percent Isokinetic of Sampling Rate, % Percent Excess Air, % F-Factor, dscfm/MMBtu @ %O2 Round Duct Diameter, inches Rectangular Duct Width, inches Rectangular Duct Length, inches Fw Fc



### Saturday, January 15, 2011 Page 29 of 29