### Name: Tim Mordhorst

Title: Company: Black Hills Corporation Sign Date: Name: Karl Breuer Title: Senior Technical Writer Company: Air Pollution Testing, Inc. Sign Date: 8/24/2010 Permitted Facility Representative / Date Testing Company Representative / Date 

## Neil Simpson II ICR Testing 2010

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.

Friday, January 21, 2011 Page 1 of 27

### Neil Simpson II ICR Testing 2010

Facility Information: Neil Simpson II 13151 Highway 51

Gillette W 82718 Contact:Tim Mordhorst Phone: 605-721-2181 Fax: Email: Tim.Mordhorst@blackhillscorp.co

m Testing Company: Air Pollution Testing, Inc.
5530 Marshall Street

Arvada CO80002 Contact:Scott Bouchard Phone: 303-420-5949 Fax: 303-420-5920 Email: sbouchard@airtest.net

Air Permit Number: 3-2-158 Permitted Source ID/Name: Neil Simpson II 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: Plant constructed in 1995, wall fired pulverized coal boiler with low nox burners, dry hydrated lime fed scrubber and an electrostatic precipitator. Industry/SCC/NAIS 221112

Sampling Location Information:

Test Parameter Information: AFS #: Enter ARS ID FRS #: Enter FRS ID

SCC / Description10100202 External Combustion Boilers - Electric Generation - Bituminous/Subbituminous Coal - Pulverized Coal: Dry Bottom (Bituminous Coal)

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

Location Round

Duct Diam. Distance from upstream dist. Distance from

downstream dist. Number of

Traverse Ports Equiv. Diam Min.Travers Points Rect. Duct Length /Width Stack Exit 111.25 1740 1260 4 0 12 0 0

Target Parameter Test Method Number of

Test Runs Test Run

Duration Sample

Points Comments Location Carbon Monoxide Method 10 3 120 0 Stack Exit Total organic compounds

(TOC) as Propane Method 25A 3 120 0 Stack Exit
Hydrogen Chloride Method 26 3 60 0 Stack Exit Hydrogen Fluoride Method 26 3 60 0 Stack Exit Filterable Particulate Method 29 3 240 0 Stack Exit Regulation Description Compound Limit Unit
None 0



### Friday, January 21, 2011 Page 2 of 27

### Neil Simpson II ICR Testing 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. Method 5 was performed as an alternative to OTM-27 due to the small diameter of the sampling ports. The OTM-27 sampling aparatus would not fit in the sampling port.
Run 1 Method 29 sampling times as entered indicate sampling only on June 22nd. Run 1 sampling was conducted on June 22nd and 23rd, but the ERT would not accept the data entered on two dates. Data was entered with some incorrect times to get around this apparent glitch in ERT. Please see attached sampling data sheets for the correct Method 29, Run 1 sampling times.

Antimony Method 29 3 240 0 Stack Exit Arsenic Method 29 3 240 0 Stack Exit Beryllium Method 29 3 240 0 Stack Exit Cadmium Method 29 3 240 0 Stack Exit Chromium Method 29 3 240 0 Stack Exit Lead Method 29 3 240 0 Stack Exit Manganese Method 29 3 240 0 Stack Exit Selenium Method 29 3 240 0 Stack Exit Nickel Method 29 3 240 0 Stack Exit O2 Method 3A O2 10 120 0 Stack Exit Co2 Method 3A CO2 10 120 0 Stack Exit Filterable Particulate Method 5/OTM-28 3 240 0 Use only for wet stacks. Delete OTM27/OTM28 test. Stack Exit

Inorganic (Aqueous)

Condensible Part. Method 5/OTM-28 3 240 0 Use only for wet stacks. Delete OTM27/OTM28 test. Stack Exit

Organic Condensible

Particulate Method 5/OTM-28 3 240 0 Use only for wet stacks. Delete OTM27/OTM28 test. Stack Exit

Total Particulate Method 5/OTM-28 3 240 0 Use only for wet stacks. Delete OTM27/OTM28 test. Stack Exit



### Friday, January 21, 2011 Page 3 of 27

### Neil Simpson II ICR Testing 2010

Sampling / Stack Data Results Summary



### Location Stack Exit - Method 10 Average Run Number 1 2 3
Test Date 6/29/2010 6/29/2010 6/29/2010 Run Start Time 6:45:00 AM 9:46:00 AM 12:39:00 PM

Run Finish Time 8:45:00 AM 11:46:00 AM 2:39:00 PM

Carbon Dioxide, % 14.9 15 14.9 14.933 Oxygen, % 4.6 4.3 4.6 4.500 Dry Volumetric Flow Rate, dry scfm 213421 222021 227060 220,834.000 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000 Moisture, % 18.2 16 13.3 15.833 Fuel Type Override Override Override
Fw 0 0 0 0.000
Fc 0 0 0 0.000



### Location Stack Exit - Method 25A Average Run Number 1 2 3
Test Date 6/29/2010 6/29/2010 6/29/2010 Run Start Time 6:45:00 AM 9:46:00 AM 12:39:00 PM

Run Finish Time 8:45:00 AM 11:46:00 AM 2:39:00 PM

Carbon Dioxide, % 14.9 15 14.9 14.933 Oxygen, % 4.6 4.3 4.3 4.400 Dry Volumetric Flow Rate, dry scfm 213421 222021 227060 220,834.000 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000 Moisture, % 18.2 16 13.3 15.833 Fuel Type Override Override Override
Fw 0 0 0 0.000
Fc 0 0 0 0.000



### Friday, January 21, 2011 Page 4 of 27

### Neil Simpson II ICR Testing 2010

Location Stack Exit - Method 26 Average Run Number 1 2 3
Test Date 6/23/2010 6/23/2010 6/23/2010 Run Start Time 6:25:00 AM 11:35:00 AM 4:36:00 PM

Run Finish Time 7:20:00 AM 12:30:00 PM 5:31:00 PM

Net Run Time, minutes 60 60 60 Dry Gas Meter Volume Sampled, dscf 1.820 1.783 1.779 1.794 Moisture Content of Stack Gas, % 18.02 18.32 17.60 17.980 Moisture Saturation at Stack Gas Temperature, % 64.19 67.67 73.92 68.593 Carbon Dioxide, % 14 15.1 15.1 14.733 Oxygen, % 4.8 4.8 4.8 4.800 Average Stack Gas Temperature, °F 183.42 185.83 189.92 186.390 Dry Volumetric Flow Rate, dry scfm 221,566.9 223,617.6 221,915.3 222,366.600 Actual Wet Volumetric Flue Gas Flow Rate, acfm 384,327.3 390,767.2 386,838.4 387,310.967 Percent Isokinetic of Sampling Rate, % F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000
Fw 0 0 0 0.000
Fc 0 0 0 0.000



### Friday, January 21, 2011 Page 5 of 27

### Neil Simpson II ICR Testing 2010

Location Stack Exit - Method 29 Average Run Number 1 2 3
Test Date 6/22/2010 6/23/2010 6/23/2010 Run Start Time 1:47:00 PM 9:29:00 AM 2:28:00 PM

Run Finish Time 6:10:00 PM 1:28:00 PM 6:55:00 PM Net Run Time, minutes 240 240 240 Dry Gas Meter Volume Sampled, dscf 158.087 155.360 156.711 156.719 Moisture Content of Stack Gas, % 18.21 18.08 17.57 17.953 Moisture Saturation at Stack Gas Temperature, % 64.48 67.67 73.92 68.690 Carbon Dioxide, % 14.4 15.1 15.1 14.867 Oxygen, % 4.8 4.8 4.8 4.800 Average Stack Gas Temperature, °F 183.25 185.83 189.92 186.333 Dry Volumetric Flow Rate, dry scfm 220,063.5 224,158.4 221,996.1 222,072.667 Actual Wet Volumetric Flue Gas Flow Rate, acfm 385,663.9 390,564.6 386,838.4 387,688.967 Percent Isokinetic of Sampling Rate, % 97.4 94.0 95.7 95.700 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000
Fw 0 0 0 0.000
Fc 0 0 0 0.000



### Location Stack Exit - Method 3A CO2 Average Run Number 1 10 2
Test Date 6/22/2010 6/29/2010 6/22/2010
Run Start Time 1:50:00 PM 12:39:00 PM 3:58:00 PM

Run Finish Time 3:50:00 PM 2:39:00 PM 4:56:00 PM Carbon Dioxide, % 14.4 14.9 15.1 14.800 Oxygen, % 4.9 4.3 4.8 4.667 Dry Volumetric Flow Rate, dry scfm 220060 227060 220060 222,393.333 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000 Moisture, % 18.2 13.3 18.2 16.567 Fuel Type Override Override Override
Fw 0 0 0 0.000
Fc 0 0 0 0.000



### Friday, January 21, 2011 Page 6 of 27

### Neil Simpson II ICR Testing 2010

Location Stack Exit - Method 3A CO2 3 Average Run Number 3 4 5
Test Date 6/23/2010 6/23/2010 6/23/2010 Run Start Time 6:34:00 AM 8:52:00 AM 11:19:00 AM

Run Finish Time 8:34:00 AM 10:52:00 AM 1:18:00 PM

Carbon Dioxide, % 14 15.1 15.1 14.733 Oxygen, % 4.8 4.8 4.8 4.800 Dry Volumetric Flow Rate, dry scfm 224094 224094 224094 224,094.000 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000 Moisture, % 18.1 18.1 18.1 18.100 Fuel Type Override Override Override
Fw 0 0 0 0.000
Fc 0 0 0 0.000



### Location Stack Exit - Method 3A CO2 3 6 Average Run Number 6 7 8
Test Date 6/23/2010 6/23/2010 6/29/2010 Run Start Time 1:31:00 PM 3:37:00 PM 6:45:00 AM
Run Finish Time 3:31:00 PM 5:37:00 PM 8:45:00 AM Carbon Dioxide, % 15 15.1 14.9 15.000 Oxygen, % 4.9 4.8 4.6 4.767 Dry Volumetric Flow Rate, dry scfm 221914 221914 213421 219,083.000 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000 Moisture, % 17.6 17.6 18.2 17.800 Fuel Type Override Override Override
Fw 0 0 0 0.000
Fc 0 0 0 0.000



### Friday, January 21, 2011 Page 7 of 27

### Neil Simpson II ICR Testing 2010

Location Stack Exit - Method 3A CO2 3 6 9 Average Run Number 9
Test Date 6/29/2010 Run Start Time 9:46:00 AM
Run Finish Time 11:46:00 AM Carbon Dioxide, % 15 15.000 Oxygen, % 4.3 4.300 Dry Volumetric Flow Rate, dry scfm 222021 222,021.000 F-Factor, dscfm/MMBtu @ %O2 9820 9,820.000 Moisture, % 16 16.000 Fuel Type Override
Fw 0 0.000
Fc 0 0.000



### Location Stack Exit - Method 3A O2 Average Run Number 1 10 2
Test Date 6/22/2010 6/29/2010 6/22/2010 Run Start Time 1:50:00 PM 12:39:00 PM 3:58:00 PM

Run Finish Time 3:50:00 PM2:39:00 PM 4:56:00 PM Carbon Dioxide, % 14.4 14.9 15.1 14.800 Oxygen, % 4.9 4.3 4.8 4.667 Dry Volumetric Flow Rate, dry scfm 220060 227060 220060 222,393.333 F-Factor, dscfm/MMBtu @ %O2 9820 9820 0 6,546.667 Moisture, % 18.2 13.3 18.2 16.567 Fuel Type Override Override
Fw 0 0 0 0.000
Fc 0 0 0 0.000



### Friday, January 21, 2011 Page 8 of 27

### Neil Simpson II ICR Testing 2010

Location Stack Exit - Method 3A O2 3 Average Run Number 3 4 5
Test Date 6/23/2010 6/23/2010 6/23/2010 Run Start Time 6:34:00 AM 8:52:00 AM 11:19:00 AM

Run Finish Time 8:34:00 AM 10:52:00 AM 1:18:00 PM

Carbon Dioxide, % 14 15.1 15.1 14.733 Oxygen, % 4.8 4.8 4.8 4.800 Dry Volumetric Flow Rate, dry scfm 220060 224094 224094 222,749.333 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000 Moisture, % 18.2 18.1 18.1 18.133 Fuel Type Override Override Override
Fw 0 0 0 0.000
Fc 0 0 0 0.000



### Location Stack Exit - Method 3A O2 3 6 Average Run Number 6 7 8
Test Date 6/23/2010 6/23/2010 6/29/2010 Run Start Time 1:31:00 PM 3:37:00 PM 6:45:00 AM
Run Finish Time 3:31:00 PM 5:37:00 PM 8:45:00 AM Carbon Dioxide, % 15 15.1 14.9 15.000 Oxygen, % 4.9 4.8 4.6 4.767 Dry Volumetric Flow Rate, dry scfm 221914 221914 213421 219,083.000 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000 Moisture, % 17.6 17.6 18.2 17.800 Fuel Type Override Override Override
Fw 0 0 0 0.000
Fc 0 0 0 0.000



### Friday, January 21, 2011 Page 9 of 27

### Neil Simpson II ICR Testing 2010

Location Stack Exit - Method 3A O2 3 6 9 Average Run Number 9
Test Date 6/29/2010 Run Start Time 9:46:00 AM
Run Finish Time 11:46:00 AM Carbon Dioxide, % 15 15.000 Oxygen, % 4.3 4.300 Dry Volumetric Flow Rate, dry scfm 222021 222,021.000 F-Factor, dscfm/MMBtu @ %O2 9820 9,820.000 Moisture, % 16 16.000 Fuel Type Override
Fw 0 0.000
Fc 0 0.000



### Location Stack Exit - Method 5/OTM-28 Average Run Number 1 2 3
Test Date 6/22/2010 6/23/2010 6/23/2010 Run Start Time 2:10:00 PM 9:29:00 AM 2:28:00 PM

Run Finish Time 6:55:00 PM 12:59:00 PM 6:55:00 PM

Net Run Time, minutes 240 240 240 Dry Gas Meter Volume Sampled, dscf 156.897 158.166 154.050 156.371 Moisture Content of Stack Gas, % 14.28 16.98 14.84 15.367 Moisture Saturation at Stack Gas Temperature, % 70.36 67.92 72.99 70.423 Carbon Dioxide, % 14.4 15.1 15.1 14.867 Oxygen, % 4.8 4.8 4.8 4.800 Average Stack Gas Temperature, °F 187.25 186.00 189.33 187.527 Dry Volumetric Flow Rate, dry scfm 211,567.5 210,033.6 210,785.6 210,795.567 Actual Wet Volumetric Flue Gas Flow Rate, acfm 355,975.6 361,200.4 355,206.0 357,460.667 Percent Isokinetic of Sampling Rate, % 100.6 102.1 99.1 100.600 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000
Fw 0 0 0 0.000
Fc 0 0 0 0.000



### Friday, January 21, 2011 Page 10 of 27

### Neil Simpson II ICR Testing 2010

Emissions Summary



### Location: Stack Exit - Method 10 Compound: Carbon Monoxide Average Run 1 2 3 lb/mmBtuO2 8.85E-02 1.40E-01 9.29E-02 0.107 ppm 9.67E+01 1.56E+02 1.01E+02 117.900 ppm@7%O2 8.25E+01 1.31E+02 8.61E+01 99.867



### Location: Stack Exit - Method 25A Compound: Total organic compounds (TOC) as Average Run 1 2 3 lb/mmBtuO2 0.00E+00 2.10E-04 2.13E-04 0.000 ppm 0.00E+00 1.49E-01 1.51E-01 0.100 ppm@7%O2 0.00E+00 1.25E-01 1.26E-01 0.084



### Location: Stack Exit - Method 26 Compound: Hydrogen Chloride Average RunNumber 1 2 3 Mass_mg 0.00828 0.0106 0.00934 0.009 lb/mmBtuO2 1.28E-04 1.67E-04 1.48E-04 0.000 

### Compound: Hydrogen Fluoride Average RunNumber 1 2 3 Mass_mg 0.0207 0.0266 0.0234 0.024 lb/mmBtuO2 3.20E-04 4.19E-04 3.70E-04 0.000



### Location: Stack Exit - Method 29 Compound: Antimony Average RunNumber 2 3 1 Mass_mg 0.0001 0.000102 0.000129 0.000 Elb/hr 1.91E-05 1.91E-05 2.38E-05 0.000 lb/mmBtuO2 1.81E-08 1.83E-08 2.29E-08 0.000 mg/dscm 2.27E-05 2.30E-05 2.88E-05 0.000 mg/dscm@7%O2 1.96E-05 1.99E-05 2.49E-05 0.000 

### Compound: Arsenic Average RunNumber 2 3 1 Mass_mg 0.00015 0.000195 0.000215 0.000 Elb/hr 2.86E-05 3.65E-05 3.96E-05 0.000 lb/mmBtuO2 2.71E-08 3.50E-08 3.82E-08 0.000 mg/dscm 3.41E-05 4.39E-05 4.80E-05 0.000 mg/dscm@7%O2 2.94E-05 3.79E-05 4.14E-05 0.000 

### Compound: Beryllium Average


### Friday, January 21, 2011 Page 11 of 27

### Neil Simpson II ICR Testing 2010

RunNumber 2 3 1 Mass_mg 0.000024 0.00003 0.000034 0.000 Elb/hr 4.58E-06 5.62E-06 6.26E-06 0.000 lb/mmBtuO2 4.34E-09 5.38E-09 6.04E-09 0.000 mg/dscm 5.46E-06 6.76E-06 7.60E-06 0.000 mg/dscm@7%O2 4.71E-06 5.84E-06 6.56E-06 0.000 

### Compound: Cadmium Average RunNumber 2 3 1 Mass_mg 0.000165 0.000263 0.00047 0.000 Elb/hr 3.15E-05 4.93E-05 8.65E-05 0.000 lb/mmBtuO2 2.98E-08 4.72E-08 8.36E-08 0.000 mg/dscm 3.75E-05 5.93E-05 1.05E-04 0.000 mg/dscm@7%O2 3.24E-05 5.12E-05 9.07E-05 0.000 

### Compound: Chromium Average RunNumber 2 3 1 Mass_mg 0.00232 0.00375 0.00427 0.003 Elb/hr 4.43E-04 7.03E-04 7.86E-04 0.001 lb/mmBtuO2 4.20E-07 6.73E-07 7.59E-07 0.000 mg/dscm 5.27E-04 8.45E-04 9.54E-04 0.001 mg/dscm@7%O2 4.55E-04 7.30E-04 8.24E-04 0.001 

### Compound: Filterable Particulate Average RunNumber 2 3 1 Mass_mg 3 1.8 5.6 3.467 Elb/hr 5.73E-01 3.37E-01 1.03E+00 0.647 lb/mmBtuO2 5.43E-04 3.23E-04 9.96E-04 0.001 mg/dscm 6.82E-01 4.06E-01 1.25E+00 0.779 mg/dscm@7%O2 5.89E-01 3.51E-01 1.08E+00 0.673 

### Compound: Lead Average RunNumber 2 3 1 Mass_mg 0.00096 0.00126 0.00331 0.002 Elb/hr 1.83E-04 2.36E-04 6.09E-04 0.000 lb/mmBtuO2 1.74E-07 2.26E-07 5.88E-07 0.000 mg/dscm 2.18E-04 2.84E-04 7.40E-04 0.000 mg/dscm@7%O2 1.88E-04 2.45E-04 6.39E-04 0.000 

### Compound: Manganese Average RunNumber 2 3 1 Mass_mg 0.00255 0.00365 0.00602 0.004 Elb/hr 4.87E-04 6.84E-04 1.11E-03 0.001 lb/mmBtuO2 4.61E-07 6.55E-07 1.07E-06 0.000 mg/dscm 5.80E-04 8.23E-04 1.34E-03 0.001 mg/dscm@7%O2 5.01E-04 7.11E-04 1.16E-03 0.001 

### Compound: Nickel Average



### Friday, January 21, 2011 Page 12 of 27

### Neil Simpson II ICR Testing 2010

Process Run Data RunNumber 2 3 1 Mass_mg 0.00346 0.00408 0.00598 0.005 Elb/hr 6.60E-04 7.65E-04 1.10E-03 0.001 lb/mmBtuO2 6.26E-07 7.32E-07 1.06E-06 0.000 mg/dscm 7.87E-04 9.20E-04 1.34E-03 0.001 mg/dscm@7%O2 6.79E-04 7.94E-04 1.16E-03 0.001 

### Compound: Selenium Average RunNumber 2 3 1 Mass_mg 0.00052 0.00052 0.00052 0.001 Elb/hr 9.92E-05 9.74E-05 9.58E-05 0.000 lb/mmBtuO2 9.41E-08 9.33E-08 9.24E-08 0.000 mg/dscm 1.18E-04 1.17E-04 1.16E-04 0.000 mg/dscm@7%O2 1.02E-04 1.01E-04 1.00E-04 0.000



### Location: Stack Exit - Method 5/OTM-28 Compound: Filterable Particulate Average RunNumber 1 2 3 Mass_mg 9.65 4.45 6.45 6.850 

### Compound: Inorganic (Aqueous) Condensible Pa Average RunNumber 1 2 3 Mass_mg 78.6 48.8 28.5 51.967 

### Compound: Organic Condensible Particulate Average RunNumber 1 2 3 Mass_mg 5.2 3.1 3.7 4.000 

### Compound: Total Particulate Average RunNumber 1 2 3 Mass_mg 93.45 563.5 38.65 231.867



### Friday, January 21, 2011 Page 13 of 27

### Neil Simpson II ICR Testing 2010

Process Run Data

APCD Run Data

Process Lab Run Data 

### Run Name Value UOM Comments Target Value 1 LOW NOX BURNERS 0 0


### 1 DRY SCRUBBER 0 0
1 ELECTROSTATIC PRECIPITATOR 0 0



### Friday, January 21, 2011 Page 14 of 27

### Neil Simpson II ICR Testing 2010

Sampling / Stack Data Results Detail



### Location Stack Exit - Method 10 Average Run Number 1 2 3 Test Date 6/29/2010 6/29/2010 6/29/2010 Run Start Time 6:45:00 AM 9:46:00 AM 12:39:00 PM Run Finish Time 8:45:00 AM11:46:00 AM 2:39:00 PM Carbon Dioxide, % 14.9 15 14.9 14.933 Oxygen, % 4.6 4.3 4.6 4.500 Fuel Factor 1.09 1.11 1.09 Dry Volumetric Flow Rate, dry scfm 213421 222021 227060220,834.000 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000 Moisture, % 18.2 16 13.3 15.833 Analyzer Make TECO TECO TECO Analyzer Model 48C 48C 48C Analyzer Serial Number 48-21571-198 48-21571- 19848-21571-198
Operating Range 182 182 182 182.000 Operating Units ppm ppm ppm No. Readings/Avg. 6 6 6 6.000 Calibration Set 1 1 1 1.000 Calibration Pre Zero Cylinder ID CC-131138 CC-131138 CC-131138 Calibration Pre Zero Cylinder Instrument Response 0 0 0.1 0.033 Calibration Pre Zero Cylinder Bias 0 0 0.05 0.017 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID ALM059451ALM059451 ALM059451 Calibration Pre High Cylinder Instrument Response 78.8 77.6 78.2 78.200 Calibration Pre High Cylinder Bias 0.16 -0.49 -0.16 -0.163 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID CC-131138 CC-131138 CC-131138 Calibration Post Zero Cylinder Instrument Response 0 0.1 0.1 0.067 Calibration Post Zero Cylinder Bias 0 0.05 0.05 0.033 Calibration Post Zero Cylinder Drift 0 0.05 0 0.017 Calibration Post High Cylinder ID ALM059451ALM059451 ALM059451 Calibration Post High Cylinder Instrument Response 77.6 78.2 78.2 78.000 Calibration Post High Cylinder Bias -0.49 -0.16 -0.16 -0.270 Calibration Post High Cylinder Drift 0.65 0.33 0 0.327 Cavg 96.8 155.1 101.6 117.833 Cavg Units ppmvd ppmvd ppmvd Cgas 96.6762 155.5479 101.5 117.908 Cgas Units ppmvd ppmvd ppmvd Fuel Type Override Override Override Fw 0 0 0 0.000 Fc 0 0 0 0.000 Cgasw 0 0 0 0.000 Cgasw Units



### Friday, January 21, 2011 Page 15 of 27

### Neil Simpson II ICR Testing 2010

Location Stack Exit - Method 25A Average Run Number 1 2 3 Test Date 6/29/2010 6/29/2010 6/29/2010 Run Start Time 6:45:00 AM 9:46:00 AM 12:39:00 PM Run Finish Time 8:45:00 AM11:46:00 AM 2:39:00 PM Carbon Dioxide, % 14.9 15 14.9 14.933 Oxygen, % 4.6 4.3 4.3 4.400 Fuel Factor 1.09 1.11 1.11 Dry Volumetric Flow Rate, dry scfm 213421 222021 227060220,834.000 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000 Moisture, % 18.2 16 13.3 15.833 Analyzer Make TECO TECO TECO Analyzer Model 55C 55C 55C Analyzer Serial Number 55C-70304- 365 55C-70304-

365 55C-70304-

365 Operating Range 100 100 100 100.000 Operating Units ppm ppm ppm No. Readings/Avg. 6 6 6 6.000 Calibration Set 2 2 2 2.000 Calibration Pre Zero Cylinder ID CC-131138 CC-131138 CC-131138 Calibration Pre Zero Cylinder Instrument Response 0 -0.1 0.2 0.033 Calibration Pre Zero Cylinder Bias 0 -0.05 0.11 0.020 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID ALM010005ALM010005 ALM010005 Calibration Pre High Cylinder Instrument Response 30 31 30.1 30.367 Calibration Pre High Cylinder Bias -0.1 -26.1 0 -8.733 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID CC-131138 CC-131138 CC-131138 Calibration Post Zero Cylinder Instrument Response -0.1 0.2 0.1 0.067 Calibration Post Zero Cylinder Bias -0.05 0.11 0.05 0.037 Calibration Post Zero Cylinder Drift 0.05 0.16 0.06 0.090 Calibration Post High Cylinder ID ALM010005ALM010005 ALM010005 Calibration Post High Cylinder Instrument Response 31 30.1 30.4 30.500 Calibration Post High Cylinder Bias 0.9 0 0.3 0.400 Calibration Post High Cylinder Drift 1 26.1 0.3 9.133 Cavg 0 0.2 0.3 0.167 Cavg Units ppmvd ppmvd ppmvd Cgas 0 0.1485 0.1505 0.100 Cgas Units ppmvd ppmvd ppmvd Fuel Type Override Override Override Fw 0 0 0 0.000 Fc 0 0 0 0.000 Cgasw 0 0 0 0.000 Cgasw Units



### Friday, January 21, 2011 Page 16 of 27

### Neil Simpson II ICR Testing 2010

Location Stack Exit - Method 26 Average Run Number 1 2 3 Test Date 6/23/2010 6/23/2010 6/23/2010 Run Start Time 6:25:00 AM11:35:00 AM 4:36:00 PM Run Finish Time 7:20:00 AM12:30:00 PM 5:31:00 PM Net Traversing Points 12 12 12 Net Run Time, minutes 60 60 60 Nozzle Diameter, inches Pitot Tube Coefficient 0.82 0.82 0.82 0.820 Dry Gas Meter Calibration Factor 1.001 1.001 1.001 1.001 Barometric Pressure, inches of Mercury 25.72 25.72 25.72 25.720 Average Orifice Meter Differential, inches H2O 0.00 0.00 0.00 0.000 Dry Gas Meter Volume Sampled, cubic feet 2.126 2.124 2.131 2.127 Average Dry Gas Meter Temperature, °F 70.79 81.21 84.38 78.793 Dry Gas Meter Volume Sampled, dscf 1.820 1.783 1.779 1.794 Total Moisture Liquid collected, g 8.4 8.5 8 8.300 Volume of Water Vapor, standard cubic feet 0.40 0.40 0.38 0.393 Moisture Content of Stack Gas, % 18.02 18.32 17.60 17.980 Moisture Saturation at Stack Gas Temperature, % 64.19 67.67 73.92 68.593 Dry Mole Fraction 0.8198 0.8168 0.824 0.820 Carbon Dioxide, % 14 15.1 15.1 14.733 Oxygen, % 4.8 4.8 4.8 4.800 Carbon Monoxide & Nitrogen, % 81.2 80.1 80.1 80.467 Fuel Factor 1.15 1.07 1.07 Dry Molecular Weight, lb/lb-Mole 30.43 30.61 30.61 30.550 Wet Molecular weight, lb/lb-Mole 28.19 28.30 28.39 28.293 Flue Gas Static Pressure, inches of H2O -1.1 -1.1 -1.1 -1.100 Absolute Flue Gas Pressure, inches of Mercury 25.64 25.64 25.64 25.640 Average Stack Gas Temperature, °F 183.42 185.83 189.92 186.390 Average Velocity Head, inches of H2O 2.0584521117 87372.128272241

98024 2.079202150

79163 2.089
Average Stack Gas Velocity, feet/second 94.89 96.48 95.51 95.627 Stack Cross-Sectional Area, square feet 67.504 67.504 67.504 67.504 Dry Volumetric Flow Rate, dry scfm 221,566.9 223,617.6 221,915.3222,366.600 Actual Wet Volumetric Flue Gas Flow Rate, acfm 384,327.3 390,767.2 386,838.4387,310.967 Percent Isokinetic of Sampling Rate, % Percent Excess Air, % 28.9 29.4 29.4 29.233 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000 Round Duct Diameter, inches 111.25 111.25 111.25 Rectangular Duct Width, inches 0 0 0 Rectangular Duct Length, inches 0 0 0 Fw 0 0 0 0.000 Fc 0 0 0 0.000



### Friday, January 21, 2011 Page 17 of 27

### Neil Simpson II ICR Testing 2010

Location Stack Exit - Method 29 Average Run Number 1 2 3 Test Date 6/22/2010 6/23/2010 6/23/2010 Run Start Time 1:47:00 PM 9:29:00 AM 2:28:00 PM Run Finish Time 6:10:00 PM 1:28:00 PM 6:55:00 PM Net Traversing Points 12 12 12 Net Run Time, minutes 240 240 240 Nozzle Diameter, inches 0.195 0.195 0.195 0.195 Pitot Tube Coefficient 0.82 0.82 0.82 0.820 Dry Gas Meter Calibration Factor 0.996 0.996 0.996 0.996 Barometric Pressure, inches of Mercury 25.51 25.72 25.72 25.650 Average Orifice Meter Differential, inches H2O 1.75 1.78 1.81 1.780 Dry Gas Meter Volume Sampled, cubic feet 188.093 181.320 189.910 186.441 Average Dry Gas Meter Temperature, °F 76.17 70.29 90.67 79.043 Dry Gas Meter Volume Sampled, dscf 158.087 155.360 156.711 156.719 Total Moisture Liquid collected, g 747.6 728.6 709.7 728.633 Volume of Water Vapor, standard cubic feet 35.19 34.30 33.41 34.300 Moisture Content of Stack Gas, % 18.21 18.08 17.57 17.953 Moisture Saturation at Stack Gas Temperature, % 64.48 67.67 73.92 68.690 Dry Mole Fraction 0.8179 0.8192 0.8243 0.820 Carbon Dioxide, % 14.4 15.1 15.1 14.867 Oxygen, % 4.8 4.8 4.8 4.800 Carbon Monoxide & Nitrogen, % 80.8 80.1 80.1 80.333 Fuel Factor 1.12 1.07 1.07 Dry Molecular Weight, lb/lb-Mole 30.50 30.61 30.61 30.573 Wet Molecular weight, lb/lb-Mole 28.22 28.33 28.39 28.313 Flue Gas Static Pressure, inches of H2O -1.1 -1.1 -1.1 -1.100 Absolute Flue Gas Pressure, inches of Mercury 25.43 25.64 25.64 25.570 Average Stack Gas Temperature, °F 183.25 185.83 189.92 186.333 Average Velocity Head, inches of H2O 2.0584521117 87372.128272241

98024 2.079202150

79163 2.089
Average Stack Gas Velocity, feet/second 95.22 96.43 95.51 95.720 Stack Cross-Sectional Area, square feet 67.504 67.504 67.504 67.504 Dry Volumetric Flow Rate, dry scfm 220,063.5 224,158.4 221,996.1222,072.667 Actual Wet Volumetric Flue Gas Flow Rate, acfm 385,663.9 390,564.6 386,838.4387,688.967 Percent Isokinetic of Sampling Rate, % 97.4 94.0 95.7 95.700 Percent Excess Air, % 29.0 29.4 29.4 29.267 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000 Round Duct Diameter, inches 111.25 111.25 111.25 Rectangular Duct Width, inches 0 0 0 Rectangular Duct Length, inches 0 0 0 Fw 0 0 0 0.000 Fc 0 0 0 0.000



### Friday, January 21, 2011 Page 18 of 27

### Neil Simpson II ICR Testing 2010

Location Stack Exit - Method 3A CO2 Average Run Number 1 10 2 Test Date 6/22/2010 6/29/2010 6/22/2010 Run Start Time 1:50:00 PM12:39:00 PM 3:58:00 PM Run Finish Time 3:50:00 PM 2:39:00 PM 4:56:00 PM Carbon Dioxide, % 14.4 14.9 15.1 14.800 Oxygen, % 4.9 4.3 4.8 4.667 Fuel Factor 1.11 1.11 1.07 Dry Volumetric Flow Rate, dry scfm 220060 227060 220060222,393.333 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000 Moisture, % 18.2 13.3 18.2 16.567 Analyzer Make Servomex Servomex Servomex Analyzer Model 1420C 1420C 1420C Analyzer Serial Number 1689 272 272 744.333 Operating Range 19.2 19.2 19.2 19.200 Operating Units % % % No. Readings/Avg. 6 6 6 6.000 Calibration Set 3 4 3 3.333 Calibration Pre Zero Cylinder ID CC-131138 CC-131138 CC-131138 Calibration Pre Zero Cylinder Instrument Response 0 0 0 0.000 Calibration Pre Zero Cylinder Bias 0 0 0 0.000 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CC-133191 (2)ALM024737 (2) CC-133191

(2) Calibration Pre High Cylinder Instrument Response 5.1 10.1 5.1 6.767 Calibration Pre High Cylinder Bias 0 0 0 0.000 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID CC-131138 CC-131138 CC-131138 Calibration Post Zero Cylinder Instrument Response 0 0 0 0.000 Calibration Post Zero Cylinder Bias 0 0 0 0.000 Calibration Post Zero Cylinder Drift 0 0 0 0.000 Calibration Post High Cylinder ID CC-133191 (2)ALM024737 (2) CC-133191

(2) Calibration Post High Cylinder Instrument Response 5.1 10.1 5.1 6.767 Calibration Post High Cylinder Bias 0 0 0 0.000 Calibration Post High Cylinder Drift 0 0 0 0.000 Cavg 14.5 14.9 15.1 14.833 Cavg Units %vd %vd %vd Cgas 14.4431 14.9 15.0408 14.795 Cgas Units %vd %vd %vd Fuel Type Override Override Override Fw 0 0 0 0.000 Fc 0 0 0 0.000 Cgasw 0 0 0 0.000 Cgasw Units



### Friday, January 21, 2011 Page 19 of 27

### Neil Simpson II ICR Testing 2010

Location Stack Exit - Method 3A CO2 3 Average Run Number 3 4 5 Test Date 6/23/2010 6/23/2010 6/23/2010 Run Start Time 6:34:00 AM 8:52:00 AM 11:19:00 AM Run Finish Time 8:34:00 AM10:52:00 AM 1:18:00 PM Carbon Dioxide, % 14 15.1 15.1 14.733 Oxygen, % 4.8 4.8 4.8 4.800 Fuel Factor 1.15 1.07 1.07 Dry Volumetric Flow Rate, dry scfm 224094 224094 224094224,094.000 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000 Moisture, % 18.1 18.1 18.1 18.100 Analyzer Make Servomex Servomex Servomex Analyzer Model 1420C 1420C 1420C Analyzer Serial Number 272 272 272 272.000 Operating Range 19.2 19.2 19.2 19.200 Operating Units % % % No. Readings/Avg. 6 6 6 6.000 Calibration Set 3 3 3 3.000 Calibration Pre Zero Cylinder ID CC-131138 CC-131138 CC-131138 Calibration Pre Zero Cylinder Instrument Response 0 0 0 0.000 Calibration Pre Zero Cylinder Bias 0 0 0 0.000 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CC-133191 (2) CC-133191 (2) CC-133191

(2) Calibration Pre High Cylinder Instrument Response 5.1 5.1 5.1 5.100 Calibration Pre High Cylinder Bias 0 0 0 0.000 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID CC-131138 CC-131138 CC-131138 Calibration Post Zero Cylinder Instrument Response 0 0 0 0.000 Calibration Post Zero Cylinder Bias 0 0 0 0.000 Calibration Post Zero Cylinder Drift 0 0 0 0.000 Calibration Post High Cylinder ID CC-133191 (2) CC-133191 (2) CC-133191

(2) Calibration Post High Cylinder Instrument Response 5.1 5.1 5.1 5.100 Calibration Post High Cylinder Bias 0 0 0 0.000 Calibration Post High Cylinder Drift 0 0 0 0.000 Cavg 14.1 15.1 15.2 14.800 Cavg Units %vd %vd %vd Cgas 14.0447 0 15.1404 9.728 Cgas Units %vd %vd %vd Fuel Type Override Override Override Fw 0 0 0 0.000 Fc 0 0 0 0.000 Cgasw 0 0 0 0.000 Cgasw Units



### Friday, January 21, 2011 Page 20 of 27

### Neil Simpson II ICR Testing 2010

Location Stack Exit - Method 3A CO2 3 6 Average Run Number 6 7 8 Test Date 6/23/2010 6/23/2010 6/29/2010 Run Start Time 1:31:00 PM 3:37:00 PM 6:45:00 AM Run Finish Time 3:31:00 PM 5:37:00 PM 8:45:00 AM Carbon Dioxide, % 15 15.1 14.9 15.000 Oxygen, % 4.9 4.8 4.6 4.767 Fuel Factor 1.07 1.07 1.09 Dry Volumetric Flow Rate, dry scfm 221914 221914 213421219,083.000 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000 Moisture, % 17.6 17.6 18.2 17.800 Analyzer Make Servomex Servomex Servomex Analyzer Model 1420C 1420C 1420C Analyzer Serial Number 272 272 272 272.000 Operating Range 19.2 19.2 19.2 19.200 Operating Units % % % No. Readings/Avg. 6 6 6 6.000 Calibration Set 3 3 4 3.333 Calibration Pre Zero Cylinder ID CC-131138 CC-131138 CC-131138 Calibration Pre Zero Cylinder Instrument Response 0 0 0 0.000 Calibration Pre Zero Cylinder Bias 0 0 0 0.000 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CC-133191 (2) CC-133191 (2)ALM024737

(2) Calibration Pre High Cylinder Instrument Response 5.1 5.1 10.1 6.767 Calibration Pre High Cylinder Bias 0 0 0 0.000 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID CC-131138 CC-131138 CC-131138 Calibration Post Zero Cylinder Instrument Response 0 0 0 0.000 Calibration Post Zero Cylinder Bias 0 0 0 0.000 Calibration Post Zero Cylinder Drift 0 0 0 0.000 Calibration Post High Cylinder ID CC-133191 (2) CC-133191 (2)ALM024737

(2) Calibration Post High Cylinder Instrument Response 5.1 5.1 10.1 6.767 Calibration Post High Cylinder Bias 0 0 0 0.000 Calibration Post High Cylinder Drift 0 0 0 0.000 Cavg 15.1 15.2 14.9 15.067 Cavg Units %vd %vd %vd Cgas 15.0408 15.1404 14.9 15.027 Cgas Units %vd %vd %vd Fuel Type Override Override Override Fw 0 0 0 0.000 Fc 0 0 0 0.000 Cgasw 0 0 0 0.000 Cgasw Units



### Friday, January 21, 2011 Page 21 of 27

### Neil Simpson II ICR Testing 2010

Location Stack Exit - Method 3A CO2 3 6 9 Average Run Number 9 Test Date 6/29/2010 Run Start Time 9:46:00 AM Run Finish Time 11:46:00 AM Carbon Dioxide, % 15 15.000 Oxygen, % 4.3 4.300 Fuel Factor 1.11 Dry Volumetric Flow Rate, dry scfm 222021 222,021.000 F-Factor, dscfm/MMBtu @ %O2 9820 9,820.000 Moisture, % 16 16.000 Analyzer Make Servomex Analyzer Model 1420C Analyzer Serial Number 272 272.000 Operating Range 19.2 19.200 Operating Units % No. Readings/Avg. 6 6.000 Calibration Set 4 4.000 Calibration Pre Zero Cylinder ID CC-131138 Calibration Pre Zero Cylinder Instrument Response 0 0.000 Calibration Pre Zero Cylinder Bias 0 0.000 Calibration Pre Zero Cylinder Drift 0 0.000 Calibration Pre High Cylinder ID ALM024737 (2) Calibration Pre High Cylinder Instrument Response 10.1 10.100 Calibration Pre High Cylinder Bias 0 0.000 Calibration Pre High Cylinder Drift 0 0.000 Calibration Post Zero Cylinder ID CC-131138 Calibration Post Zero Cylinder Instrument Response 0 0.000 Calibration Post Zero Cylinder Bias 0 0.000 Calibration Post Zero Cylinder Drift 0 0.000 Calibration Post High Cylinder ID ALM024737 (2) Calibration Post High Cylinder Instrument Response 10.1 10.100 Calibration Post High Cylinder Bias 0 0.000 Calibration Post High Cylinder Drift 0 0.000 Cavg 15 15.000 Cavg Units %vd Cgas 15 15.000 Cgas Units %vd Fuel Type Override Fw 0 0.000 Fc 0 0.000 Cgasw 0 0.000 Cgasw Units



### Friday, January 21, 2011 Page 22 of 27

### Neil Simpson II ICR Testing 2010

Location Stack Exit - Method 3A O2 Average Run Number 1 10 2 Test Date 6/22/2010 6/29/2010 6/22/2010 Run Start Time 1:50:00 PM12:39:00 PM 3:58:00 PM Run Finish Time 3:50:00 PM 2:39:00 PM 4:56:00 PM Carbon Dioxide, % 14.4 14.9 15.1 14.800 Oxygen, % 4.9 4.3 4.8 4.667 Fuel Factor 1.11 1.11 1.07 Dry Volumetric Flow Rate, dry scfm 220060 227060 220060222,393.333 F-Factor, dscfm/MMBtu @ %O2 9820 9820 0 6,546.667 Moisture, % 18.2 13.3 18.2 16.567 Analyzer Make Servomex Servomex Servomex Analyzer Model 1420C 1420C 1420C Analyzer Serial Number 1689 1689 1689 1,689.000 Operating Range 20.9 20.9 20.9 20.900 Operating Units % % % No. Readings/Avg. 6 6 6 6.000 Calibration Set 5 6 5 5.333 Calibration Pre Zero Cylinder ID CC-131138 CC-131138 CC-131138 Calibration Pre Zero Cylinder Instrument Response 0 0 0 0.000 Calibration Pre Zero Cylinder Bias 0 0 0 0.000 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CC-133191(1)ALM024737 (1) CC133191(1) Calibration Pre High Cylinder Instrument Response 5 10.1 5.1 6.733 Calibration Pre High Cylinder Bias -40.38 0 0.48 -13.300 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID CC-131138 CC-131138 CC-131138 Calibration Post Zero Cylinder Instrument Response 0 0 0 0.000 Calibration Post Zero Cylinder Bias 0 0 0 0.000 Calibration Post Zero Cylinder Drift 0 0 0 0.000 Calibration Post High Cylinder ID CC-133191(1)ALM024737 (1) CC133191(1) Calibration Post High Cylinder Instrument Response 5.1 10.1 5 6.733 Calibration Post High Cylinder Bias -40.33 0 0 -13.443 Calibration Post High Cylinder Drift 5.0000000000 0043E-02 0 0.48 0.177

Cavg 4.9 4.3 4.8 4.667 Cavg Units %vd %vd %vd Cgas 75.7802 4.3 4.762 28.281 Cgas Units %vd %vd %vd Fuel Type Override Override Fw 0 0 0 0.000 Fc 0 0 0 0.000 Cgasw 0 0 0 0.000 Cgasw Units



### Friday, January 21, 2011 Page 23 of 27

### Neil Simpson II ICR Testing 2010

Location Stack Exit - Method 3A O2 3 Average Run Number 3 4 5 Test Date 6/23/2010 6/23/2010 6/23/2010 Run Start Time 6:34:00 AM 8:52:00 AM 11:19:00 AM Run Finish Time 8:34:00 AM10:52:00 AM 1:18:00 PM Carbon Dioxide, % 14 15.1 15.1 14.733 Oxygen, % 4.8 4.8 4.8 4.800 Fuel Factor 1.15 1.07 1.07 Dry Volumetric Flow Rate, dry scfm 220060 224094 224094222,749.333 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000 Moisture, % 18.2 18.1 18.1 18.133 Analyzer Make Servomex Servomex Servomex Analyzer Model 1420C 1420C 1420C Analyzer Serial Number 1689 1689 1689 1,689.000 Operating Range 20.9 20.9 20.9 20.900 Operating Units % % % No. Readings/Avg. 6 6 6 6.000 Calibration Set 5 5 5 5.000 Calibration Pre Zero Cylinder ID CC-131138 CC-131138 CC-131138 Calibration Pre Zero Cylinder Instrument Response 0 0 0 0.000 Calibration Pre Zero Cylinder Bias 0 0 0 0.000 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CC-133191(1) CC133191(1) CC133191(1) Calibration Pre High Cylinder Instrument Response 5 5 5 5.000 Calibration Pre High Cylinder Bias 0 0 0 0.000 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID CC-131138 CC-131138 CC-131138 Calibration Post Zero Cylinder Instrument Response 0 0 0 0.000 Calibration Post Zero Cylinder Bias 0 0 0 0.000 Calibration Post Zero Cylinder Drift 0 0 0 0.000 Calibration Post High Cylinder ID CC-133191(1) CC133191(1) CC133191(1) Calibration Post High Cylinder Instrument Response 5 5 5 5.000 Calibration Post High Cylinder Bias 0 0 0 0.000 Calibration Post High Cylinder Drift 0 0 0 0.000 Cavg 4.8 4.8 4.8 4.800 Cavg Units %vd %vd %vd Cgas 4.8096 4.8096 4.8096 4.810 Cgas Units %vd %vd %vd Fuel Type Override Override Override Fw 0 0 0 0.000 Fc 0 0 0 0.000 Cgasw 0 0 0 0.000 Cgasw Units



### Friday, January 21, 2011 Page 24 of 27

### Neil Simpson II ICR Testing 2010

Location Stack Exit - Method 3A O2 3 6 Average Run Number 6 7 8 Test Date 6/23/2010 6/23/2010 6/29/2010 Run Start Time 1:31:00 PM 3:37:00 PM 6:45:00 AM Run Finish Time 3:31:00 PM 5:37:00 PM 8:45:00 AM Carbon Dioxide, % 15 15.1 14.9 15.000 Oxygen, % 4.9 4.8 4.6 4.767 Fuel Factor 1.07 1.07 1.09 Dry Volumetric Flow Rate, dry scfm 221914 221914 213421219,083.000 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000 Moisture, % 17.6 17.6 18.2 17.800 Analyzer Make Servomex Servomex Servomex Analyzer Model 1420C 1420C 1420C Analyzer Serial Number 1689 1689 1689 1,689.000 Operating Range 20.9 20.9 20.9 20.900 Operating Units % % % No. Readings/Avg. 6 6 6 6.000 Calibration Set 5 5 6 5.333 Calibration Pre Zero Cylinder ID CC-131138 CC-131138 CC-131138 Calibration Pre Zero Cylinder Instrument Response 0 0 0 0.000 Calibration Pre Zero Cylinder Bias 0 0 0 0.000 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CC-133191(1) CC133191(1)ALM024737

(1) Calibration Pre High Cylinder Instrument Response 5 5 10.1 6.700 Calibration Pre High Cylinder Bias 0 0 0 0.000 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID CC-131138 CC-131138 CC-131138 Calibration Post Zero Cylinder Instrument Response 0 0 0 0.000 Calibration Post Zero Cylinder Bias 0 0 0 0.000 Calibration Post Zero Cylinder Drift 0 0 0 0.000 Calibration Post High Cylinder ID CC-133191(1) CC133191(1)ALM024737

(1) Calibration Post High Cylinder Instrument Response 5 5 10.1 6.700 Calibration Post High Cylinder Bias 0 0 0 0.000 Calibration Post High Cylinder Drift 0 0 0 0.000 Cavg 4.9 4.8 4.6 4.767 Cavg Units %vd %vd %vd Cgas 4.9098 4.8096 4.6 4.773 Cgas Units %vd %vd %vd Fuel Type Override Override Override Fw 0 0 0 0.000 Fc 0 0 0 0.000 Cgasw 0 0 0 0.000 Cgasw Units



### Friday, January 21, 2011 Page 25 of 27

### Neil Simpson II ICR Testing 2010

Location Stack Exit - Method 3A O2 3 6 9 Average Run Number 9 Test Date 6/29/2010 Run Start Time 9:46:00 AM Run Finish Time 11:46:00 AM Carbon Dioxide, % 15 15.000 Oxygen, % 4.3 4.300 Fuel Factor 1.11 Dry Volumetric Flow Rate, dry scfm 222021 222,021.000 F-Factor, dscfm/MMBtu @ %O2 9820 9,820.000 Moisture, % 16 16.000 Analyzer Make Servomex Analyzer Model 1420C Analyzer Serial Number 1689 1,689.000 Operating Range 20.9 20.900 Operating Units % No. Readings/Avg. 6 6.000 Calibration Set 6 6.000 Calibration Pre Zero Cylinder ID CC-131138 Calibration Pre Zero Cylinder Instrument Response 0 0.000 Calibration Pre Zero Cylinder Bias 0 0.000 Calibration Pre Zero Cylinder Drift 0 0.000 Calibration Pre High Cylinder ID ALM024737 (1) Calibration Pre High Cylinder Instrument Response 10.1 10.100 Calibration Pre High Cylinder Bias 0 0.000 Calibration Pre High Cylinder Drift 0 0.000 Calibration Post Zero Cylinder ID CC-131138 Calibration Post Zero Cylinder Instrument Response 0 0.000 Calibration Post Zero Cylinder Bias 0 0.000 Calibration Post Zero Cylinder Drift 0 0.000 Calibration Post High Cylinder ID ALM024737 (1) Calibration Post High Cylinder Instrument Response 10.1 10.100 Calibration Post High Cylinder Bias 0 0.000 Calibration Post High Cylinder Drift 0 0.000 Cavg 4.3 4.300 Cavg Units %vd Cgas 4.3 4.300 Cgas Units %vd Fuel Type Override Fw 0 0.000 Fc 0 0.000 Cgasw 0 0.000 Cgasw Units



### Friday, January 21, 2011 Page 26 of 27

### Neil Simpson II ICR Testing 2010

Location Stack Exit - Method 5/OTM-28 Average Run Number 1 2 3 Test Date 6/22/2010 6/23/2010 6/23/2010 Run Start Time 2:10:00 PM 9:29:00 AM 2:28:00 PM Run Finish Time 6:55:00 PM12:59:00 PM 6:55:00 PM Net Traversing Points 12 12 12 Net Run Time, minutes 240 240 240 Nozzle Diameter, inches 0.195 0.195 0.195 0.195 Pitot Tube Coefficient 0.83 0.83 0.83 0.830 Dry Gas Meter Calibration Factor 0.997 0.997 0.997 0.997 Barometric Pressure, inches of Mercury 25.51 25.72 25.72 25.650 Average Orifice Meter Differential, inches H2O 1.61 1.65 1.65 1.637 Dry Gas Meter Volume Sampled, cubic feet 184.404 184.405 186.583 185.131 Average Dry Gas Meter Temperature, °F 69.96 70.08 90.67 76.903 Dry Gas Meter Volume Sampled, dscf 156.897 158.166 154.050 156.371 Total Moisture Liquid collected, g 555.4 687.4 570.5 604.433 Volume of Water Vapor, standard cubic feet 26.14 32.36 26.85 28.450 Moisture Content of Stack Gas, % 14.28 16.98 14.84 15.367 Moisture Saturation at Stack Gas Temperature, % 70.36 67.92 72.99 70.423 Dry Mole Fraction 0.8572 0.8302 0.8516 0.846 Carbon Dioxide, % 14.4 15.1 15.1 14.867 Oxygen, % 4.8 4.8 4.8 4.800 Carbon Monoxide & Nitrogen, % 80.8 80.1 80.1 80.333 Fuel Factor 1.12 1.07 1.07 Dry Molecular Weight, lb/lb-Mole 30.50 30.61 30.61 30.573 Wet Molecular weight, lb/lb-Mole 28.72 28.47 28.74 28.643 Flue Gas Static Pressure, inches of H2O -1.1 -1.1 -1.1 -1.100 Absolute Flue Gas Pressure, inches of Mercury 25.43 25.64 25.64 25.570 Average Stack Gas Temperature, °F 187.25 186.00 189.33 187.527 Average Velocity Head, inches of H2O 1.7311628596 12991.784817946

70104 1.733750379

1294 1.750
Average Stack Gas Velocity, feet/second 87.89 89.18 87.70 88.257 Stack Cross-Sectional Area, square feet 67.504 67.504 67.504 67.504 Dry Volumetric Flow Rate, dry scfm 211,567.5 210,033.6 210,785.6210,795.567 Actual Wet Volumetric Flue Gas Flow Rate, acfm 355,975.6 361,200.4 355,206.0357,460.667 Percent Isokinetic of Sampling Rate, % 100.6 102.1 99.1 100.600 Percent Excess Air, % 29.0 29.4 29.4 29.267 F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000 Round Duct Diameter, inches 111.25 111.25 111.25 Rectangular Duct Width, inches 0 0 0 Rectangular Duct Length, inches 0 0 0 Fw 0 0 0 0.000 Fc 0 0 0 0.000



### Friday, January 21, 2011 Page 27 of 27