### Name: Terry Graumann

Title: Manager, Environmental Services Company: Otter Tail Power Company Sign Date: 8/12/2010 Name: John Kay Title: Research Manager Company: EERC Sign Date: 8/9/2010 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.

Thursday, February 10, 2011 Page 1 of 34

### 8/12/2010

Facility Information: Hoot Lake (ORIS 1943) 1012 Water Plant Road

Fergus Falls MN 56537 Contact: Mark Thoma Phone: 218-739-8526 Fax: 218-739-8629 Email: mthoma@otpco.com Testing Company: EERC 15 North 23rd Street Stop 9018 Grand Forks ND 58202-9018 Contact: John Kay Phone: 701-777-4580 Fax: 701-777-5181 Email: jkay@undeerc.org

Air Permit Number: 1943 Permitted Source ID/Name: Enter the Boiler ID of the tested boiler (left) 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: Hoot Lake Plant is a steam-to-electric conversion facility. The Unit 2 boiler is primarily fired with subbituminous coal, and it is equipped with low NOx burners and an electrostatic precipitator for pollution control. Industry/SCC/NAIS 221112

Sampling Location Information:

Test Parameter Information: AFS #: 2711100002 FRS #: 110000427422

SCC / Description 10100226 External Combustion Boilers - Electric Generation - Bituminous/Subbituminous Coal - Pulverized Coal: Dry Bottom Tangential (Subbituminous 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 0 48 84 6 98.5 30 156 72 Stack Exit 1 0 48 84 6 98.5 12 156 72 Stack Exit 2 0 0 132 1 98.5 1 156 72

Target Parameter Test Method Number of

Test Runs Test Run

Duration Sample

Points Comments Location Inorganic (Aqueous)

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

Total Particulate OTM - 27/28 3 240 0 Stack Exit 1 Organic Condensible

Particulate OTM - 27/28 3 240 0 Stack Exit 1



### Thursday, February 10, 2011 Page 2 of 34

### 8/12/2010 Filterable Particulate OTM - 27/28 3 240 0 Stack Exit 1 Total PM2.5 OTM - 27/28 3 240 0 Stack Exit 1 Filterable PM2.5 OTM - 27/28 3 240 0 Stack Exit 1 Carbon Monoxide Method 10 3 120 0 Stack Exit 2 Total organic compounds

(TOC) as Propane Method 25A 3 120 0 Stack Exit 2

% H2O Method 1 - 4 3 180 0 Stack Exit % H2O Method 1 - 4 3 240 0 Stack Exit % H2O Method 1 - 4 3 120 0 Stack Exit % H2O Method 1 - 4 3 480 0 Stack Exit Formaldehyde Method 0011 3 120 0 Stack Exit 2,3,7,8-TCDD Method 23 3 480 0 Stack Exit 1,2,3,7,8-PeCDD Method 23 3 480 0 Stack Exit 1,2,3,4,7,8-HxCDD Method 23 3 480 0 Stack Exit 1,2,3,6,7,8-HxCDD Method 23 3 480 0 Stack Exit 1,2,3,7,8,9-HxCDD Method 23 3 480 0 Stack Exit 1,2,3,4,6,7,8-HpCDD Method 23 3 480 0 Stack Exit OCDD Method 23 3 480 0 Stack Exit 2,3,7,8-TCDF Method 23 3 480 0 Stack Exit 1,2,3,7,8-PeCDF Method 23 3 480 0 Stack Exit 2,3,4,7,8-PeCDF Method 23 3 480 0 Stack Exit 1,2,3,4,7,8-HxCDF Method 23 3 480 0 Stack Exit 1,2,3,6,7,8-HxCDF Method 23 3 480 0 Stack Exit 2,3,4,6,7,8-HxCDF Method 23 3 480 0 Stack Exit 1,2,3,7,8,9-HxCDF Method 23 3 480 0 Stack Exit 1,2,3,4,6,7,8-HpCDF Method 23 3 480 0 Stack Exit 1,2,3,4,7,8,9-HpCDF Method 23 3 480 0 Stack Exit OCDF Method 23 3 480 0 Stack Exit Other TCDD Method 23 3 480 0 Stack Exit Other PeCDD Method 23 3 480 0 Stack Exit Other HxCDD Method 23 3 480 0 Stack Exit Other HpCDD Method 23 3 480 0 Stack Exit Other TCDF Method 23 3 480 0 Stack Exit Other PeCDF Method 23 3 480 0 Stack Exit Other HxCDF Method 23 3 480 0 Stack Exit Other HpCDF Method 23 3 480 0 Stack Exit Total Dioxins Method 23 3 480 0 Stack Exit Total Furans Method 23 3 480 0 Stack Exit 3,3',4,4'-TCB (PCB77) Method 23 3 480 0 Stack Exit 3,4,4',5-TCB (PCB81) Method 23 3 480 0 Stack Exit 2,3,3',4,4'-PeCB (PCB105) Method 23 3 480 0 Stack Exit 2,3,4,4',5-PeCB (PCB114) Method 23 3 480 0 Stack Exit 2,3',4,4',5-PeCB (PCB118) Method 23 3 480 0 Stack Exit 2',3,4,4',5-PeCB (PCB123) Method 23 3 480 0 Stack Exit 3,3',4,4',5-PeCB (PCB126) Method 23 3 480 0 Stack Exit 2,3,3',4,4',5/2,3,3',4,4',5'-

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

(PCB189) Method 23 3 480 0 Stack Exit Hydrogen Chloride Method 26A 3 180 0 Stack Exit Hydrogen Fluoride Method 26A 3 180 0 Stack Exit 

### Thursday, February 10, 2011 Page 3 of 34

### 8/12/2010

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. As instructed by EPA on the ICR website (https://utilitymacticr.rti.org/FAQ/FAQEmissionsTesting.aspx#TEST-021), the following modifications will be made to Method 29 for mercury measurement: 1. The procedures for preparation of mercury standards and sample analysis in sections 13.4.1.1 through 13.4.1.3 of ASTM D6784-02 will be followed instead of the procedures in sections 7.5.33 and 11.1.3 of Method 29; and 2. The QA/QC procedures in section 13.4.2 of ASTM D6784-02 will be performed instead of the procedures in section 9.2.3 of Method 29

Cobalt Method 29 3 240 0 Stack Exit Filterable Particulate Method 29 3 240 0 Stack Exit Selenium Method 29 3 240 0 Stack Exit Nickel Method 29 3 240 0 Stack Exit Mercury Method 29 3 240 0 Stack Exit Manganese Method 29 3 240 0 Stack Exit Lead Method 29 3 240 0 Stack Exit Chromium Method 29 3 240 0 Stack Exit Cadmium Method 29 3 240 0 Stack Exit Beryllium Method 29 3 240 0 Stack Exit Arsenic Method 29 3 240 0 Stack Exit Antimony Method 29 3 240 0 Stack Exit



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### 8/12/2010

Sampling / Stack Data Results Summary 

### Location Stack Exit - Method 0011 Average Run Number M0011-1 M-0011-2 M0011-3 Test Date 5/24/2010 5/25/2010 5/25/2010 Run Start Time 4:16:00 PM 8:22:00 AM 9:35:00 AM

Run Finish Time 6:40:00 PM 10:45:00 AM 11:51:00 AM

Net Run Time, minutes 120 120 120 Dry Gas Meter Volume Sampled, dscf 68.151 65.771 63.331 65.751 Moisture Content of Stack Gas, % 10.03 9.63 10.11 9.923 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Carbon Dioxide, % 11.5 11.5 12.1 11.700 Oxygen, % 7.1 7 6.9 7.000 Average Stack Gas Temperature, °F 372.63 355.77 354.97 361.123 Dry Volumetric Flow Rate, dry scfm 159,875.4 155,663.4 156,391.0 157,309.933 Actual Wet Volumetric Flue Gas Flow Rate, acfm 298,584.0 284,076.0 284,918.4 289,192.800 Percent Isokinetic of Sampling Rate, % 100.3 99.5 100.6 100.133 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000 Fw 10640 10640 10640 10,640.000 Fc 1840 1840 1840 1,840.000



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### 8/12/2010

Location Stack Exit - Method 23 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 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



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### 8/12/2010

Location 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 Stack Exit 1 - 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



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### 8/12/2010

Location Stack Exit 2 - 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 Stack Exit 2 - 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



### Thursday, February 10, 2011 Page 8 of 34

### 8/12/2010

Emissions Summary 

### Location: Stack Exit - Method 0011 Compound: Formaldehyde Average RunNumber M0011-1 M-0011-2 M0011-3 Mass_mg 0.026 0.012 0.046 0.028 lb/mmBtuO2 1.25E-05 5.94E-06 2.35E-05 0.000 ppm 1.08E-02 5.16E-03 2.05E-02 0.012 ppm@7%O2 1.09E-02 5.16E-03 2.04E-02 0.012



### Location: Stack Exit - Method 23 Compound: 1,2,3,4,6,7,8-HpCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000045 0.0000000045 0.0000000043 0.000 lb/mmBtuO2 4.22E-13 4.68E-13 4.60E-13 0.000 ng/dscm 4.51E-04 5.04E-04 4.89E-04 0.000 ng/dscm@7%O2 4.58E-04 5.08E-04 5.00E-04 0.000 

### Compound: 1,2,3,4,6,7,8-HpCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000022 0.0000000048 0.0000000045 0.000 lb/mmBtuO2 2.06E-13 4.99E-13 4.82E-13 0.000 ng/dscm 2.20E-04 5.38E-04 5.12E-04 0.000 ng/dscm@7%O2 2.23E-04 5.42E-04 5.23E-04 0.000 

### Compound: 1,2,3,4,7,8,9-HpCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000002 0.0000000019 0.0000000022 0.000 lb/mmBtuO2 1.87E-13 1.98E-13 2.36E-13 0.000 ng/dscm 2.00E-04 2.13E-04 2.50E-04 0.000 ng/dscm@7%O2 2.03E-04 2.15E-04 2.56E-04 0.000 

### Compound: 1,2,3,4,7,8-HxCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000016 0.0000000018 0.0000000016 0.000 lb/mmBtuO2 1.50E-13 1.87E-13 1.71E-13 0.000 ng/dscm 1.60E-04 2.02E-04 1.82E-04 0.000 ng/dscm@7%O2 1.62E-04 2.03E-04 1.86E-04 0.000 

### Compound: 1,2,3,4,7,8-HxCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000016 0.0000000016 0.0000000017 0.000 lb/mmBtuO2 1.50E-13 1.66E-13 1.82E-13 0.000 ng/dscm 1.60E-04 1.79E-04 1.93E-04 0.000 ng/dscm@7%O2 1.62E-04 1.80E-04 1.97E-04 0.000



### Thursday, February 10, 2011 Page 9 of 34

### 8/12/2010

Compound: 1,2,3,6,7,8-HxCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000017 0.0000000018 0.0000000016 0.000 lb/mmBtuO2 1.59E-13 1.87E-13 1.71E-13 0.000 ng/dscm 1.70E-04 2.02E-04 1.82E-04 0.000 ng/dscm@7%O2 1.72E-04 2.03E-04 1.86E-04 0.000 

### Compound: 1,2,3,6,7,8-HxCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000014 0.0000000015 0.0000000016 0.000 lb/mmBtuO2 1.31E-13 1.56E-13 1.71E-13 0.000 ng/dscm 1.40E-04 1.68E-04 1.82E-04 0.000 ng/dscm@7%O2 1.42E-04 1.69E-04 1.86E-04 0.000 

### Compound: 1,2,3,7,8,9-HxCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000016 0.0000000018 0.0000000016 0.000 lb/mmBtuO2 1.50E-13 1.87E-13 1.71E-13 0.000 ng/dscm 1.60E-04 2.02E-04 1.82E-04 0.000 ng/dscm@7%O2 1.62E-04 2.03E-04 1.86E-04 0.000 

### Compound: 1,2,3,7,8,9-HxCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000018 0.000000002 0.0000000021 0.000 lb/mmBtuO2 1.69E-13 2.08E-13 2.25E-13 0.000 ng/dscm 1.80E-04 2.24E-04 2.39E-04 0.000 ng/dscm@7%O2 1.83E-04 2.26E-04 2.44E-04 0.000 

### Compound: 1,2,3,7,8-PeCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000016 0.0000000017 0.0000000018 0.000 lb/mmBtuO2 1.50E-13 1.77E-13 1.93E-13 0.000 ng/dscm 1.60E-04 1.90E-04 2.05E-04 0.000 ng/dscm@7%O2 1.62E-04 1.91E-04 2.10E-04 0.000 

### Compound: 1,2,3,7,8-PeCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000024 0.000000002 0.0000000017 0.000 lb/mmBtuO2 2.25E-13 2.08E-13 1.82E-13 0.000 ng/dscm 2.40E-04 2.24E-04 1.93E-04 0.000 ng/dscm@7%O2 2.44E-04 2.26E-04 1.97E-04 0.000 

### Compound: 2,3,3',4,4',5,5'-HpCB (PCB189) Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000083 0.000000049 0.00000002 0.000 lb/mmBtuO2 7.78E-12 5.10E-12 2.14E-12 0.000



### Thursday, February 10, 2011 Page 10 of 34

### 8/12/2010 ng/dscm 8.32E-03 5.49E-03 2.27E-03 0.005 ng/dscm@7%O2 8.44E-03 5.53E-03 2.32E-03 0.005 

### Compound: 2,3,3',4,4',5/2,3,3',4,4',5'-HxCB (PC Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000048 0.000000053 0.00000003 0.000 lb/mmBtuO2 4.50E-12 5.51E-12 3.21E-12 0.000 ng/dscm 4.81E-03 5.94E-03 3.41E-03 0.005 ng/dscm@7%O2 4.88E-03 5.98E-03 3.49E-03 0.005 

### Compound: 2,3,3',4,4'-PeCB (PCB105) Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000051 0.000000078 0.000000048 0.000 lb/mmBtuO2 4.78E-12 8.11E-12 5.14E-12 0.000 ng/dscm 5.11E-03 8.74E-03 5.46E-03 0.006 ng/dscm@7%O2 5.18E-03 8.80E-03 5.58E-03 0.007 

### Compound: 2,3',4,4',5,5'-HxCB (PCB167) Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000031 0.000000021 0.000000014 0.000 lb/mmBtuO2 2.90E-12 2.18E-12 1.50E-12 0.000 ng/dscm 3.11E-03 2.35E-03 1.59E-03 0.002 ng/dscm@7%O2 3.16E-03 2.37E-03 1.63E-03 0.002 

### Compound: 2,3,4,4',5-PeCB (PCB114) Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000015 0.000000011 0.0000000099 0.000 lb/mmBtuO2 1.41E-12 1.14E-12 1.06E-12 0.000 ng/dscm 1.50E-03 1.23E-03 1.13E-03 0.001 ng/dscm@7%O2 1.52E-03 1.24E-03 1.15E-03 0.001 

### Compound: 2,3',4,4',5-PeCB (PCB118) Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000012 0.000000018 0.000000011 0.000 lb/mmBtuO2 1.12E-12 1.87E-12 1.18E-12 0.000 ng/dscm 1.20E-03 2.02E-03 1.25E-03 0.001 ng/dscm@7%O2 1.22E-03 2.03E-03 1.28E-03 0.002 

### Compound: 2',3,4,4',5-PeCB (PCB123) Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000016 0.000000011 0.00000001 0.000 lb/mmBtuO2 1.50E-12 1.14E-12 1.07E-12 0.000 ng/dscm 1.60E-03 1.23E-03 1.14E-03 0.001 ng/dscm@7%O2 1.62E-03 1.24E-03 1.17E-03 0.001 

### Compound: 2,3,4,6,7,8-HxCDF Average RunNumber M23-1 M23-2 M23-3 

### Thursday, February 10, 2011 Page 11 of 34

### 8/12/2010 Mass_mg 0.000000002 0.0000000027 0.0000000019 0.000 lb/mmBtuO2 1.87E-13 2.81E-13 2.03E-13 0.000 ng/dscm 2.00E-04 3.03E-04 2.16E-04 0.000 ng/dscm@7%O2 2.03E-04 3.05E-04 2.21E-04 0.000 

### Compound: 2,3,4,7,8-PeCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000003 0.0000000027 0.0000000022 0.000 lb/mmBtuO2 2.81E-13 2.81E-13 2.36E-13 0.000 ng/dscm 3.01E-04 3.03E-04 2.50E-04 0.000 ng/dscm@7%O2 3.05E-04 3.05E-04 2.56E-04 0.000 

### Compound: 2,3,7,8-TCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000016 0.0000000018 0.0000000016 0.000 lb/mmBtuO2 1.50E-13 1.87E-13 1.71E-13 0.000 ng/dscm 1.60E-04 2.02E-04 1.82E-04 0.000 ng/dscm@7%O2 1.62E-04 2.03E-04 1.86E-04 0.000 

### Compound: 2,3,7,8-TCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000142 0.0000000064 0.0000000051 0.000 lb/mmBtuO2 1.33E-12 6.66E-13 5.46E-13 0.000 ng/dscm 1.42E-03 7.17E-04 5.80E-04 0.001 ng/dscm@7%O2 1.44E-03 7.22E-04 5.93E-04 0.001 

### Compound: 3,3',4,4',5,5'-HxCB (PCB169) Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000031 0.000000021 0.000000014 0.000 lb/mmBtuO2 2.90E-12 2.18E-12 1.50E-12 0.000 ng/dscm 3.11E-03 2.35E-03 1.59E-03 0.002 ng/dscm@7%O2 3.16E-03 2.37E-03 1.63E-03 0.002 

### Compound: 3,3',4,4',5-PeCB (PCB126) Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000016 0.000000011 0.00000001 0.000 lb/mmBtuO2 1.50E-12 1.14E-12 1.07E-12 0.000 ng/dscm 1.60E-03 1.23E-03 1.14E-03 0.001 ng/dscm@7%O2 1.62E-03 1.24E-03 1.17E-03 0.001 

### Compound: 3,3',4,4'-TCB (PCB77) Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000025 0.000000021 0.000000035 0.000 lb/mmBtuO2 2.34E-12 2.18E-12 3.75E-12 0.000 ng/dscm 2.50E-03 2.35E-03 3.98E-03 0.003 ng/dscm@7%O2 2.54E-03 2.37E-03 4.07E-03 0.003



### Thursday, February 10, 2011 Page 12 of 34

### 8/12/2010

Compound: 3,4,4',5-TCB (PCB81) Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000025 0.000000021 0.000000011 0.000 lb/mmBtuO2 2.34E-12 2.18E-12 1.18E-12 0.000 ng/dscm 2.50E-03 2.35E-03 1.25E-03 0.002 ng/dscm@7%O2 2.54E-03 2.37E-03 1.28E-03 0.002 

### Compound: OCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000233 0.0000000236 0.0000000236 0.000 lb/mmBtuO2 2.18E-12 2.45E-12 2.53E-12 0.000 ng/dscm 2.33E-03 2.64E-03 2.68E-03 0.003 ng/dscm@7%O2 2.36E-03 2.66E-03 2.74E-03 0.003 

### Compound: OCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000042 0.000000006 0.0000000058 0.000 lb/mmBtuO2 3.93E-13 6.24E-13 6.21E-13 0.000 ng/dscm 4.21E-04 6.72E-04 6.59E-04 0.001 ng/dscm@7%O2 4.27E-04 6.77E-04 6.74E-04 0.001 

### Compound: Other HpCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000016 0.0000000016 0.0000000021 0.000 lb/mmBtuO2 1.50E-13 1.66E-13 2.25E-13 0.000 ng/dscm 1.60E-04 1.79E-04 2.39E-04 0.000 ng/dscm@7%O2 1.62E-04 1.80E-04 2.44E-04 0.000 

### Compound: Other HpCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000002 0.000000002 0.0000000051 0.000 lb/mmBtuO2 1.87E-13 2.08E-13 5.46E-13 0.000 ng/dscm 2.00E-04 2.24E-04 5.80E-04 0.000 ng/dscm@7%O2 2.03E-04 2.26E-04 5.93E-04 0.000 

### Compound: Other HxCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000017 0.0000000017 0.0000000018 0.000 lb/mmBtuO2 1.59E-13 1.77E-13 1.93E-13 0.000 ng/dscm 1.70E-04 1.90E-04 2.05E-04 0.000 ng/dscm@7%O2 1.72E-04 1.91E-04 2.10E-04 0.000 

### Compound: Other HxCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000019 0.0000000019 0.0000000018 0.000 lb/mmBtuO2 1.78E-13 1.98E-13 1.93E-13 0.000



### Thursday, February 10, 2011 Page 13 of 34

### 8/12/2010 ng/dscm 1.90E-04 2.13E-04 2.05E-04 0.000 ng/dscm@7%O2 1.93E-04 2.15E-04 2.10E-04 0.000 

### Compound: Other PeCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000016 0.0000000016 0.0000000039 0.000 lb/mmBtuO2 1.50E-13 1.66E-13 4.18E-13 0.000 ng/dscm 1.60E-04 1.79E-04 4.43E-04 0.000 ng/dscm@7%O2 1.62E-04 1.80E-04 4.53E-04 0.000 

### Compound: Other PeCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000041 0.000000002 0.0000000017 0.000 lb/mmBtuO2 3.84E-13 2.08E-13 1.82E-13 0.000 ng/dscm 4.11E-04 2.24E-04 1.93E-04 0.000 ng/dscm@7%O2 4.17E-04 2.26E-04 1.97E-04 0.000 

### Compound: Other TCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000016 0.0000000018 0.0000000016 0.000 lb/mmBtuO2 1.50E-13 1.87E-13 1.71E-13 0.000 ng/dscm 1.60E-04 2.02E-04 1.82E-04 0.000 ng/dscm@7%O2 1.62E-04 2.03E-04 1.86E-04 0.000 

### Compound: Other TCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000518 0.0000000061 0.0000000098 0.000 lb/mmBtuO2 4.85E-12 6.34E-13 1.05E-12 0.000 ng/dscm 5.19E-03 6.83E-04 1.11E-03 0.002 ng/dscm@7%O2 5.27E-03 6.88E-04 1.13E-03 0.002 

### Compound: Total Dioxins Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000388 0.0000000378 0.0000000492 0.000 lb/mmBtuO2 3.64E-12 3.93E-12 5.27E-12 0.000 ng/dscm 3.89E-03 4.24E-03 5.59E-03 0.005 ng/dscm@7%O2 3.95E-03 4.27E-03 5.71E-03 0.005 

### Compound: Total Furans Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000842 0.0000000295 0.0000000298 0.000 lb/mmBtuO2 7.89E-12 3.07E-12 3.19E-12 0.000 ng/dscm 8.44E-03 3.31E-03 3.39E-03 0.005 ng/dscm@7%O2 8.56E-03 3.33E-03 3.46E-03 0.005



### Location: Stack Exit - Method 26A



### Thursday, February 10, 2011 Page 14 of 34

### 8/12/2010

Compound: Hydrogen Chloride Average RunNumber M26A-3 M26A-1 M26A-2 Mass_mg 2 2 2 2.000 Elb/hr 4.34E-01 4.40E-01 4.35E-01 0.436 lb/mmBtuO2 6.95E-04 6.91E-04 6.79E-04 0.001 mg/dscm 7.54E-01 7.55E-01 7.42E-01 0.750 mg/dscm@7%O2 7.54E-01 7.50E-01 7.37E-01 0.747 

### Compound: Hydrogen Fluoride Average RunNumber M26A-3 M26A-1 M26A-2 Mass_mg 1.25 0.85 1.1 1.067 Elb/hr 2.71E-01 1.87E-01 2.39E-01 0.232 lb/mmBtuO2 4.34E-04 2.94E-04 3.73E-04 0.000 mg/dscm 4.71E-01 3.21E-01 4.08E-01 0.400 mg/dscm@7%O2 4.71E-01 3.19E-01 4.05E-01 0.398



### Location: Stack Exit - Method 29 Compound: Antimony Average RunNumber M29-1 M29-2 M29-3 Mass_mg 0.0019 0.0038 0.0041 0.003 Elb/hr 2.98E-04 6.44E-04 6.95E-04 0.001 lb/mmBtuO2 4.62E-07 9.37E-07 1.03E-06 0.000 mg/dscm 5.04E-04 1.08E-03 1.17E-03 0.001 mg/dscm@7%O2 5.00E-04 1.02E-03 1.11E-03 0.001 

### Compound: Arsenic Average RunNumber M29-1 M29-2 M29-3 Mass_mg 0.0166 0.0209 0.0267 0.021 Elb/hr 2.60E-03 3.54E-03 4.52E-03 0.004 lb/mmBtuO2 4.03E-06 5.16E-06 6.69E-06 0.000 mg/dscm 4.41E-03 5.92E-03 7.63E-03 0.006 mg/dscm@7%O2 4.38E-03 5.60E-03 7.26E-03 0.006 

### Compound: Beryllium Average RunNumber M29-1 M29-2 M29-3 Mass_mg 0.000965 0.00105 0.00095 0.001 Elb/hr 1.51E-04 1.78E-04 1.61E-04 0.000 lb/mmBtuO2 2.34E-07 2.59E-07 2.38E-07 0.000 mg/dscm 2.56E-04 2.97E-04 2.71E-04 0.000 mg/dscm@7%O2 2.54E-04 2.81E-04 2.58E-04 0.000 

### Compound: Cadmium Average RunNumber M29-1 M29-2 M29-3 Mass_mg 0.0005 0.00361 0.00067 0.002 Elb/hr 7.84E-05 6.12E-04 1.13E-04 0.000 lb/mmBtuO2 1.21E-07 8.90E-07 1.68E-07 0.000 mg/dscm 1.33E-04 1.02E-03 1.91E-04 0.000 

### Thursday, February 10, 2011 Page 15 of 34

### 8/12/2010 mg/dscm@7%O2 1.32E-04 9.64E-04 1.82E-04 0.000 

### Compound: Chromium Average RunNumber M29-1 M29-2 M29-3 Mass_mg 0.0158 0.01795 0.0204 0.018 Elb/hr 2.48E-03 3.04E-03 3.46E-03 0.003 lb/mmBtuO2 3.84E-06 4.43E-06 5.11E-06 0.000 mg/dscm 4.20E-03 5.08E-03 5.83E-03 0.005 mg/dscm@7%O2 4.17E-03 4.80E-03 5.55E-03 0.005 

### Compound: Cobalt Average RunNumber M29-1 M29-2 M29-3 Mass_mg 0.00732 0.0088 0.0106 0.009 Elb/hr 1.15E-03 1.49E-03 1.80E-03 0.001 lb/mmBtuO2 1.78E-06 2.17E-06 2.66E-06 0.000 mg/dscm 1.94E-03 2.49E-03 3.03E-03 0.002 mg/dscm@7%O2 1.93E-03 2.35E-03 2.88E-03 0.002 

### Compound: Filterable Particulate Average RunNumber M29-1 M29-2 M29-3 Mass_mg 233.59 296.99 333.16 287.913 Elb/hr 3.66E+01 5.04E+01 5.64E+01 47.800 lb/mmBtuO2 5.68E-02 7.33E-02 8.35E-02 0.071 mg/dscm 6.20E+01 8.41E+01 9.52E+01 80.433 mg/dscm@7%O2 6.16E+01 7.95E+01 9.06E+01 77.233 

### Compound: Lead Average RunNumber M29-1 M29-2 M29-3 Mass_mg 0.0145 0.0172 0.0184 0.017 Elb/hr 2.27E-03 2.92E-03 3.12E-03 0.003 lb/mmBtuO2 3.52E-06 4.24E-06 4.61E-06 0.000 mg/dscm 3.85E-03 4.87E-03 5.26E-03 0.005 mg/dscm@7%O2 3.82E-03 4.60E-03 5.01E-03 0.004 

### Compound: Manganese Average RunNumber M29-1 M29-2 M29-3 Mass_mg 0.095 0.105 0.12 0.107 Elb/hr 1.49E-02 1.78E-02 2.03E-02 0.018 lb/mmBtuO2 2.31E-05 2.59E-05 3.01E-05 0.000 mg/dscm 2.52E-02 2.97E-02 3.43E-02 0.030 mg/dscm@7%O2 2.50E-02 2.81E-02 3.27E-02 0.029 

### Compound: Mercury Average RunNumber M29-1 M29-2 M29-3 Mass_mg 0.0236 0.021 0.0272 0.024 Elb/hr 3.70E-03 3.56E-03 4.61E-03 0.004 lb/mmBtuO2 5.73E-06 5.18E-06 6.82E-06 0.000 mg/dscm 6.27E-03 5.94E-03 7.77E-03 0.007 

### Thursday, February 10, 2011 Page 16 of 34

### 8/12/2010 mg/dscm@7%O2 6.23E-03 5.62E-03 7.40E-03 0.006 

### Compound: Nickel Average RunNumber M29-1 M29-2 M29-3 Mass_mg 0.01005 0.01351 0.01491 0.013 Elb/hr 1.58E-03 2.29E-03 2.53E-03 0.002 lb/mmBtuO2 2.44E-06 3.33E-06 3.74E-06 0.000 mg/dscm 2.67E-03 3.82E-03 4.26E-03 0.004 mg/dscm@7%O2 2.65E-03 3.61E-03 4.06E-03 0.003 

### Compound: Selenium Average RunNumber M29-1 M29-2 M29-3 Mass_mg 0.0148 0.0135 0.0138 0.014 Elb/hr 2.32E-03 2.29E-03 2.34E-03 0.002 lb/mmBtuO2 3.60E-06 3.33E-06 3.46E-06 0.000 mg/dscm 3.93E-03 3.82E-03 3.94E-03 0.004 mg/dscm@7%O2 3.90E-03 3.61E-03 3.75E-03 0.004



### Location: Stack Exit 1 - OTM - 27/28 Compound: Filterable Particulate Average RunNumber M27/28-1 M27/28-3 M27/28-2 Mass_mg 324.4 396.6 365.8 362.267 lb/mmBtuO2 8.01E-02 1.00E-01 9.23E-02 0.091 

### Compound: Filterable PM2.5 Average RunNumber M27/28-1 M27/28-3 M27/28-2 Mass_mg 83.4 79.4 86.8 83.200 lb/mmBtuO2 2.06E-02 2.01E-02 2.19E-02 0.021 

### Compound: Inorganic (Aqueous) Condensible Pa Average RunNumber M27/28-1 M27/28-3 M27/28-2 Mass_mg 6.7 6.2 6.9 6.600 lb/mmBtuO2 1.65E-03 1.57E-03 1.74E-03 0.002 

### Compound: Organic Condensible Particulate Average RunNumber M27/28-1 M27/28-3 M27/28-2 Mass_mg 1 1.1 1 1.033 lb/mmBtuO2 2.47E-04 2.79E-04 2.52E-04 0.000 

### Compound: Total Particulate Average RunNumber M27/28-1 M27/28-3 M27/28-2 Mass_mg 331.7 403.9 373.7 369.767 lb/mmBtuO2 8.19E-02 1.02E-01 9.43E-02 0.093 

### Compound: Total PM2.5 Average



### Thursday, February 10, 2011 Page 17 of 34

### 8/12/2010

Process Run Data RunNumber M27/28-1 M27/28-3 M27/28-2 Mass_mg 91.1 85.9 94.7 90.567 lb/mmBtuO2 2.25E-02 2.18E-02 2.39E-02 0.023



### Location: Stack Exit 2 - Method 10 

### Compound: Carbon Monoxide Average Run 1 2 3 lb/mmBtuO2 3.80E-04 3.88E-04 8.07E-04 0.001 ppm 3.62E-01 3.67E-01 7.51E-01 0.493 ppm@7%O2 3.54E-01 3.62E-01 7.51E-01 0.489



### Location: Stack Exit 2 - Method 25A Compound: Total organic compounds (TOC) as Average Run 1 2 3 lb/mmBtuO2 1.99E-03 2.74E-03 2.71E-03 0.002 ppm 1.19E+00 1.64E+00 1.62E+00 1.483 ppm@7%O2 1.18E+00 1.63E+00 1.61E+00 1.473



### Thursday, February 10, 2011 Page 18 of 34

### 8/12/2010

Process Run Data



### Run Name Value UOM Comments Target Value 1 Subbituminous Coal Burned 0.0272 1000 Tons/hr Method 0011 Run 1 0



### 2 Subbituminous Coal Burned 0 1000 Tons/hr 0 3 Subbituminous Coal Burned 0 1000 Tons/hr 0 

### 1 Average Heat Input 694.4 MMBtu/hr From CEMS 0 2 Average Heat Input 0 MMBtu/hr 0 3 Average Heat Input 0 MMBtu/hr 0 

### 1 Steam Output 0.4042 1000 lb steam/hr 0 2 Steam Output 0 1000 lb steam/hr 0 3 Steam Output 0 1000 lb steam/hr 0 

### 1 Flue Gas Flow Rate 169239 scfm Wet scfm from CEMS 0

1 Flue Gas Oxygen Content 3.3 % Excess Oxygen Measured at Boiler 0



### 1 Flue Gas Carbon Dioxide Content 12.6 % From CEMS 0 1 Flue Gas Sampling Point Temperature 370 Deg F 0 1 Flue Gas Pressure 0.9398 atm 0 

### 1 Standard Pressure 1 atm 0 1 Standard Temperature 68 Deg F 0 1 Unit Gross Electrical Output 55 Mwe 0 

### 1 Unit Net Electric Generation 52 MWh 0 4 Subbituminous Coal Burned 0.027 1000 Tons/hr Method 0011 Run 2 0



### 4 Average Heat Input 669.7 MMBtu/hr From CEMS 0 4 Steam Output 0.4055 1000 lb steam/hr 0 4 Flue Gas Flow Rate 167799 scfm Wet scfm from CEMS 0



### 4 Flue Gas Oxygen Content 3.3 % Excess Oxygen Measured at Boiler 0

4 Flue Gas Carbon Dioxide Content 12.2 % From CEMS 0 

### 4 Flue Gas Sampling Point Temperature 354 Deg F 0 4 Flue Gas Pressure 0.9488 atm 0 4 Standard Pressure 1 atm 0 

### 4 Standard Temperature 68 Deg F 0 4 Unit Gross Electrical Output 54 Mwe 0 4 Unit Net Electric Generation 52 MWh 0



### Thursday, February 10, 2011 Page 19 of 34

### 8/12/2010

5 Subbituminous Coal Burned 0.027 1000 Tons/hr Method 0011 Run 3 0



### 5 Average Heat Input 663.8 MMBtu/hr From CEMS 0 5 Steam Output 0.4048 1000 lb steam/hr 0 

### 5 Flue Gas Flow Rate 165607 scfm Wet scfm from CEMS 0

5 Flue Gas Oxygen Content 3.3 % Excess Oxygen Measured at Boiler 0



### 5 Flue Gas Carbon Dioxide Content 12.3 % From CEMS 0 5 Flue Gas Sampling Point Temperature 355 Deg F 0 5 Flue Gas Pressure 0.9494 atm 0 

### 5 Standard Pressure 1 atm 0 5 Standard Temperature 68 Deg F 0 5 Unit Gross Electrical Output 54 Mwe 0 

### 5 Unit Net Electric Generation 52 MWh 0 6 Subbituminous Coal Burned 0.0285 1000 Tons/hr Method 23 - Run 1 0 6 Average Heat Input 682.1 MMBtu/hr From CEMS 0 

### 6 Steam Output 0.4013 1000 lb steam/hr 0 6 Flue Gas Flow Rate 168210 scfm Wet scfm from CEMS 0



### 6 Flue Gas Oxygen Content 3.3 % Excess Oxygen Measured at Boiler 0

6 Flue Gas Carbon Dioxide Content 12.4 % From CEMS 0 6 Flue Gas Sampling Point Temperature 361 Deg F 0 

### 6 Flue Gas Pressure 0.9543 atm 0 6 Standard Pressure 1 atm 0 6 Standard Temperature 68 Deg F 0 

### 6 Unit Gross Electrical Output 54 Mwe 0 6 Unit Net Electric Generation 52 MWh 0 

### 7 Subbituminous Coal Burned 0.0272 1000 Tons/hr Method 23 - Run 2 0 7 Average Heat Input 686.4 MMBtu/hr From CEMS 0 7 Steam Output 0.4018 1000 lb steam/hr 0 

### 7 Flue Gas Flow Rate 167898 scfm Wet scfm from CEMS 0

7 Flue Gas Oxygen Content 3.3 % Excess Oxygen Measured at Boiler 0



### 7 Flue Gas Carbon Dioxide Content 12.5 % From CEMS 0 7 Flue Gas Sampling Point Temperature 356 Deg F 0 7 Flue Gas Pressure 0.9499 atm 0



### Thursday, February 10, 2011 Page 20 of 34

### 8/12/2010

7 Standard Pressure 1 atm 0 

### 7 Standard Temperature 68 Deg F 0 7 Unit Gross Electrical Output 54 Mwe 0 7 Unit Net Electric Generation 52 MWh 0 

### 8 Subbituminous Coal Burned 0.0269 1000 Tons/hr Method 23 - Run 3 0 8 Average Heat Input 684.8 MMBtu/hr From CEMS 0 8 Steam Output 0.4037 1000 lb steam/hr 0 

### 8 Flue Gas Flow Rate 170014 scfm Wet scfm from CEMS 0

8 Flue Gas Oxygen Content 3.3 % Excess Oxygen Measured at Boiler 0



### 8 Flue Gas Carbon Dioxide Content 12.4 % From CEMS 0 8 Flue Gas Sampling Point Temperature 356 Deg F 0 8 Flue Gas Pressure 0.9502 atm 0 

### 8 Standard Pressure 1 atm 0 8 Standard Temperature 68 Deg F 0 

### 8 Unit Gross Electrical Output 54 Mwe 0 8 Unit Net Electric Generation 52 MWh 0 9 Subbituminous Coal Burned 0.0272 1000 Tons/hr Method 26A - Run 1 0



### 9 Average Heat Input 686.3 MMBtu/hr From CEMS 0 9 Steam Output 0.4041 1000 lb steam/hr 0 9 Flue Gas Flow Rate 171203 scfm Wet scfm from CEMS 0

9 Flue Gas Oxygen Content 3.3 % Excess Oxygen Measured at Boiler 0

9 Flue Gas Carbon Dioxide Content 12.3 % From CEMS 0 

### 9 Flue Gas Sampling Point Temperature 363 Deg F 0 9 Flue Gas Pressure 0.9418 atm 0 

### 9 Standard Pressure 1 atm 0 9 Standard Temperature 68 Deg F 0 9 Unit Gross Electrical Output 55 Mwe 0 

### 9 Unit Net Electric Generation 52 MWh 0 10 Subbituminous Coal Burned 0.0274 1000 Tons/hr Method 26A - Run 2 0

10 Average Heat Input 667.9 MMBtu/hr From CEMS 0 

### 10 Steam Output 0.4056 1000 lb steam/hr 0 10 Flue Gas Flow Rate 165577 scfm Wet scfm from CEMS 0



### Thursday, February 10, 2011 Page 21 of 34

### 8/12/2010

10 Flue Gas Oxygen Content 3.3 % Excess Oxygen Measured at Boiler 0



### 10 Flue Gas Carbon Dioxide Content 12.4 % From CEMS 0 10 Flue Gas Sampling Point Temperature 359 Deg F 0 

### 10 Flue Gas Pressure 0.9515 atm 0 10 Standard Pressure 1 atm 0 10 Standard Temperature 68 Deg F 0 

### 10 Unit Gross Electrical Output 54 Mwe 0 10 Unit Net Electric Generation 52 MWh 0 11 Subbituminous Coal Burned 0.0282 1000 Tons/hr Method 26A - Run 3 0



### 11 Average Heat Input 693.9 MMBtu/hr From CEMS 0 11 Steam Output 0.4097 1000 lb steam/hr 0 11 Flue Gas Flow Rate 169226 scfm Wet scfm from CEMS 0

11 Flue Gas Oxygen Content 3.3 % Excess Oxygen Measured at Boiler 0



### 11 Flue Gas Carbon Dioxide Content 12.6 % From CEMS 0 11 Flue Gas Sampling Point Temperature 349 Deg F 0 11 Flue Gas Pressure 0.9561 atm 0 

### 11 Standard Pressure 1 atm 0 11 Standard Temperature 68 Deg F 0 11 Unit Gross Electrical Output 54 Mwe 0 

### 11 Unit Net Electric Generation 52 MWh 0 12 Subbituminous Coal Burned 0.0273 1000 Tons/hr Method 29 - Run 1 0 12 Average Heat Input 688.1 MMBtu/hr From CEMS 0 

### 12 Steam Output 0.4043 1000 lb steam/hr 0 12 Flue Gas Flow Rate 174029 scfm Wet scfm from CEMS 0



### 12 Flue Gas Oxygen Content 3.3 % Excess Oxygen Measured at Boiler 0

12 Flue Gas Carbon Dioxide Content 12.1 % From CEMS 0 12 Flue Gas Sampling Point Temperature 354 Deg F 0 

### 12 Flue Gas Pressure 0.9438 atm 0 12 Standard Pressure 1 atm 0 12 Standard Temperature 68 Deg F 0 

### 12 Unit Gross Electrical Output 54 Mwe 0 12 Unit Net Electric Generation 52 MWh 0 13 Subbituminous Coal Burned 0.0272 1000 Tons/hr Method 29 - Run 2 0



### Thursday, February 10, 2011 Page 22 of 34

### 8/12/2010

13 Average Heat Input 666.9 MMBtu/hr From CEMS 0 

### 13 Steam Output 0.4066 1000 lb steam/hr 0 13 Flue Gas Flow Rate 165647 scfm Wet scfm from CEMS 0



### 13 Flue Gas Oxygen Content 3.3 % Excess Oxygen Measured at Boiler 0

13 Flue Gas Carbon Dioxide Content 12.3 % From CEMS 0 13 Flue Gas Sampling Point Temperature 359 Deg F 0 

### 13 Flue Gas Pressure 0.951 atm 0 13 Standard Pressure 1 atm 0 13 Standard Temperature 68 Deg F 0 

### 13 Unit Gross Electrical Output 54 Mwe 0 13 Unit Net Electric Generation 52 MWh 0 14 Subbituminous Coal Burned 0.0282 1000 Tons/hr Method 29 - Run 3 0 

### 14 Average Heat Input 697.5 MMBtu/hr From CEMS 0 14 Steam Output 0.4119 1000 lb steam/hr 0 

### 14 Flue Gas Flow Rate 170785 scfm Wet scfm from CEMS 0

14 Flue Gas Oxygen Content 3.3 % Excess Oxygen Measured at Boiler 0



### 14 Flue Gas Carbon Dioxide Content 12.5 % From CEMS 0 14 Flue Gas Sampling Point Temperature 347 Deg F 0 14 Flue Gas Pressure 0.9566 atm 0 

### 14 Standard Pressure 1 atm 0 14 Standard Temperature 68 Deg F 0 14 Unit Gross Electrical Output 55 Mwe 0 

### 14 Unit Net Electric Generation 54 MWh 0 15 Subbituminous Coal Burned 0.0269 1000 Tons/hr Method OTM 27/28 - Run 1 0



### 15 Average Heat Input 685.4 MMBtu/hr From CEMS 0 15 Steam Output 0.4041 1000 lb steam/hr 0 15 Flue Gas Flow Rate 170196 scfm Wet scfm from CEMS 0



### 15 Flue Gas Oxygen Content 3.3 % Excess Oxygen Measured at Boiler 0

15 Flue Gas Carbon Dioxide Content 12.4 % From CEMS 0 

### 15 Flue Gas Sampling Point Temperature 356 Deg F 0 15 Flue Gas Pressure 0.9498 atm 0 15 Standard Pressure 1 atm 0



### Thursday, February 10, 2011 Page 23 of 34

### 8/12/2010

15 Standard Temperature 68 Deg F 0 

### 15 Unit Gross Electrical Output 54 Mwe 0 15 Unit Net Electric Generation 52 MWh 0 16 Subbituminous Coal Burned 0.0263 1000 Tons/hr Method OTM 27/28 - Run 2 0



### 16 Average Heat Input 691.2 MMBtu/hr From CEMS 0 16 Steam Output 0.4072 1000 lb steam/hr 0 

### 16 Flue Gas Flow Rate 171222 scfm Wet scfm from CEMS 0

16 Flue Gas Oxygen Content 3.3 % Excess Oxygen Measured at Boiler 0



### 16 Flue Gas Carbon Dioxide Content 12.4 % From CEMS 0 16 Flue Gas Sampling Point Temperature 351 Deg F 0 16 Flue Gas Pressure 0.9495 atm 0 

### 16 Standard Pressure 1 atm 0 16 Standard Temperature 68 Deg F 0 16 Unit Gross Electrical Output 54 Mwe 0 

### 16 Unit Net Electric Generation 52 MWh 0 17 Subbituminous Coal Burned 0.0272 1000 Tons/hr Method OTM 27/28 - Run 3 0



### 17 Average Heat Input 689.3 MMBtu/hr From CEMS 0 17 Steam Output 0.4029 1000 lb steam/hr 0 17 Flue Gas Flow Rate 170417 scfm Wet scfm from CEMS 0



### 17 Flue Gas Oxygen Content 3.3 % Excess Oxygen Measured at Boiler 0

17 Flue Gas Carbon Dioxide Content 12.4 % From CEMS 0 

### 17 Flue Gas Sampling Point Temperature 347 Deg F 0 17 Flue Gas Pressure 0.9473 atm 0 17 Standard Pressure 1 atm 0 

### 17 Standard Temperature 68 Deg F 0 17 Unit Gross Electrical Output 54 Mwe 0 17 Unit Net Electric Generation 52 MWh 0 

### 18 Subbituminous Coal Burned 0.0275 1000 Tons/hr Method 10 - Run 1 0 18 Average Heat Input 671.5 MMBtu/hr From CEMS 0 18 Steam Output 0.405 1000 lb steam/hr 0 

### 18 Flue Gas Flow Rate 166411 scfm Wet scfm from CEMS 0

Thursday, February 10, 2011 Page 24 of 34

### 8/12/2010

18 Flue Gas Oxygen Content 3.3 % Excess Oxygen Measured at Boiler 0



### 18 Flue Gas Carbon Dioxide Content 12.4 % From CEMS 0 18 Flue Gas Sampling Point Temperature 360 Deg F 0 

### 18 Flue Gas Pressure 0.9517 atm 0 18 Standard Pressure 1 atm 0 18 Standard Temperature 68 Deg F 0 

### 18 Unit Gross Electrical Output 54 Mwe 0 18 Unit Net Electric Generation 52 MWh 0 19 Subbituminous Coal Burned 0.0283 1000 Tons/hr Method 10 - Run 2 0 

### 19 Average Heat Input 703.8 MMBtu/hr From CEMS 0 19 Steam Output 0.4127 1000 lb steam/hr 0 19 Flue Gas Flow Rate 171909 scfm Wet scfm from CEMS 0



### 19 Flue Gas Oxygen Content 3.3 % Excess Oxygen Measured at Boiler 0

19 Flue Gas Carbon Dioxide Content 12.5 % From CEMS 0 

### 19 Flue Gas Sampling Point Temperature 351 Deg F 0 19 Flue Gas Pressure 0.9564 atm 0 19 Standard Pressure 1 atm 0 

### 19 Standard Temperature 68 Deg F 0 19 Unit Gross Electrical Output 54 Mwe 0 19 Unit Net Electric Generation 52 MWh 0 

### 20 Subbituminous Coal Burned 0.0282 1000 Tons/hr Method 10 - Run 3 0 20 Average Heat Input 690.5 MMBtu/hr From CEMS 0 20 Steam Output 0.4066 1000 lb steam/hr 0 

### 20 Flue Gas Flow Rate 166442 scfm Wet scfm from CEMS 0

20 Flue Gas Oxygen Content 3.3 % Excess Oxygen Measured at Boiler 0



### 20 Flue Gas Carbon Dioxide Content 12.7 % From CEMS 0 20 Flue Gas Sampling Point Temperature 349 Deg F 0 

### 20 Flue Gas Pressure 0.9555 atm 0 20 Standard Pressure 1 atm 0 20 Standard Temperature 68 Deg F 0 

### 20 Unit Gross Electrical Output 55 Mwe 0 20 Unit Net Electric Generation 54 MWh 0 21 Subbituminous Coal Burned 0.0292 1000 Tons/hr Method 25A - Run 1 0



### Thursday, February 10, 2011 Page 25 of 34

### 8/12/2010

21 Average Heat Input 645.5 MMBtu/hr From CEMS 0 

### 21 Steam Output 0.4074 1000 lb steam/hr 0 21 Flue Gas Flow Rate 166337 scfm Wet scfm from CEMS 0



### 21 Flue Gas Oxygen Content 3.3 % Excess Oxygen Measured at Boiler 0

21 Flue Gas Carbon Dioxide Content 11.9 % From CEMS 0 21 Flue Gas Sampling Point Temperature 363 Deg F 0 

### 21 Flue Gas Pressure 0.9556 atm 0 21 Standard Pressure 1 atm 0 21 Standard Temperature 68 Deg F 0 

### 21 Unit Gross Electrical Output 54 Mwe 0 21 Unit Net Electric Generation 52 MWh 0 22 Subbituminous Coal Burned 0.0291 1000 Tons/hr Method 25A - Run 2 0

22 Average Heat Input 643.8 MMBtu/hr From CEMS 0 22 Steam Output 0.4069 1000 lb steam/hr 0 

### 22 Flue Gas Flow Rate 165802 scfm Wet scfm from CEMS 0

22 Flue Gas Oxygen Content 3.3 % Excess Oxygen Measured at Boiler 0



### 22 Flue Gas Carbon Dioxide Content 11.9 % From CEMS 0 22 Flue Gas Sampling Point Temperature 371 Deg F 0 22 Flue Gas Pressure 0.9539 atm 0 

### 22 Standard Pressure 1 atm 0 22 Standard Temperature 68 Deg F 0 22 Unit Gross Electrical Output 54 Mwe 0 

### 22 Unit Net Electric Generation 52 MWh 0 23 Subbituminous Coal Burned 0.0292 1000 Tons/hr Method 25A - Run 3 0



### 23 Average Heat Input 651.9 MMBtu/hr From CEMS 0 23 Steam Output 0.4069 1000 lb steam/hr 0 23 Flue Gas Flow Rate 166751 scfm Wet scfm from CEMS 0



### 23 Flue Gas Oxygen Content 3.3 % Excess Oxygen Measured at Boiler 0

23 Flue Gas Carbon Dioxide Content 12 % From CEMS 0 

### 23 Flue Gas Sampling Point Temperature 371 Deg F 0 23 Flue Gas Pressure 0.9525 atm 0



### Thursday, February 10, 2011 Page 26 of 34

### 8/12/2010

APCD Run Data

Process Lab Run Data 23 Standard Pressure 1 atm 0 

### 23 Standard Temperature 68 Deg F 0 23 Unit Gross Electrical Output 54 Mwe 0 23 Unit Net Electric Generation 52 MWh 0

Run Name Value UOM Comments Target Value 

### 1 LOW NOX BURNERS 0 0 1 ELECTROSTATIC PRECIPITATOR - HIGH EFFICIENCY 0 0

Run Name Value UOM Comments 

### 1 Fuel Higher Heating Value 0 Btu/lb 1 Fuel Moisture 0 % 1 Fuel Mercury Content 0 ppm 

### 1 Fuel Cadmium Content 0 ppm 1 Ultimate/Proximate Analysis 0 1 Fuel Nickel Content 0 ppm 

### 1 Fuel Arsenic Content 0 ppm 1 Fuel Chromium Content 0 ppm 1 Fuel Beryllium Content 0 ppm 1 Fuel Lead Content 0 ppm 

### 1 Fuel Manganese Content 0 ppm 1 Fuel Chlorine Content 0 ppm 1 Fuel Fluorine Content 0 ppm



### Thursday, February 10, 2011 Page 27 of 34

### 8/12/2010

Sampling / Stack Data Results Detail 

### Location Stack Exit - Method 0011 Average Run Number M0011-1 M-0011-2 M0011-3 Test Date 5/24/2010 5/25/2010 5/25/2010 Run Start Time 4:16:00 PM 8:22:00 AM 9:35:00 AM Run Finish Time 6:40:00 PM 10:45:00 AM 11:51:00 AM Net Traversing Points 30 30 30 Net Run Time, minutes 120 120 120 Nozzle Diameter, inches 0.225 0.225 0.219 0.223 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 1.01 1.01 1.03 1.017 Barometric Pressure, inches of Mercury 28.62 28.56 28.74 28.640 Average Orifice Meter Differential, inches H2O 1.06 1.01 1.01 1.027 Dry Gas Meter Volume Sampled, cubic feet 72.046 68.878 64.490 68.471 Average Dry Gas Meter Temperature, °F 80.73 74.47 73.33 76.177 Dry Gas Meter Volume Sampled, dscf 68.151 65.771 63.331 65.751 Total Moisture Liquid collected, g 161.4 148.9 151.3 153.867 Volume of Water Vapor, standard cubic feet 7.60 7.01 7.12 7.243 Moisture Content of Stack Gas, % 10.03 9.63 10.11 9.923 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Dry Mole Fraction 0.8997 0.9037 0.8989 0.901 Carbon Dioxide, % 11.5 11.5 12.1 11.700 Oxygen, % 7.1 7 6.9 7.000 Carbon Monoxide & Nitrogen, % 81.4 81.5 81 81.300 Fuel Factor 1.20 1.21 1.16 Dry Molecular Weight, lb/lb-Mole 30.12 30.12 30.21 30.150 Wet Molecular weight, lb/lb-Mole 28.90 28.95 28.98 28.943 Flue Gas Static Pressure, inches of H2O -7.4 -7.2 -7.4 -7.333 Absolute Flue Gas Pressure, inches of Mercury 28.08 28.03 28.20 28.103 Average Stack Gas Temperature, °F 372.63 355.77 354.97 361.123 Average Velocity Head, inches of H2O 0.7692213348 24745 0.710648724

739908 0.720604780

134682 0.733 Average Stack Gas Velocity, feet/second 63.80 60.70 60.88 61.793 Stack Cross-Sectional Area, square feet 78.000 78.000 78.000 78.000 Dry Volumetric Flow Rate, dry scfm 159,875.4 155,663.4 156,391.0 157,309.933 Actual Wet Volumetric Flue Gas Flow Rate, acfm 298,584.0 284,076.0 284,918.4 289,192.800 Percent Isokinetic of Sampling Rate, % 100.3 99.5 100.6 100.133 Percent Excess Air, % 5.4 4.9 4.4 4.900 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000 Round Duct Diameter, inches 0 0 0 Rectangular Duct Width, inches 156 156 156 Rectangular Duct Length, inches 72 72 72 Fw 10640 10640 10640 10,640.000 Fc 1840 1840 1840 1,840.000



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Location Stack Exit - Method 23 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



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Location 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



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Location 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



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Location Stack Exit 1 - 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



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Location Stack Exit 2 - 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



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Location Stack Exit 2 - 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



### Thursday, February 10, 2011 Page 34 of 34