### Name: Glenn Brannen

Title: Preformance Group Company: South Carolina Electric and Gas Sign Date: 8/3/2010 Name: Mark Looney Title: President Company:Environmental Source Samplers, Inc Sign Date: 8/3/2010 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.

Saturday, February 12, 2011 Page 1 of 17

### 8/3/2010

Facility Information: Urquhart 100 Urquhart Drive

Beech Island SC29038 Contact:Glenn Brannen Phone:803-217-9690 Fax: Email: GBRANNEN@scana.com Testing Company: Environmental Source Samplers, Inc 436 Raleigh Street

Wilmington NC28412 Contact:Mark Looney Phone:910-799-1055 Fax: 910-799-1056 Email: mark@essknowsair.com

Air Permit Number: Permitted Source ID/Name: Urquhart UNIT 3 URQ3 Permitted Maximum Process Rate:Max. Normal Operation Process Rate: Target Process Test Rate

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

Urquhart Generating Station consists of three (3) pulverized coal fired boilers. The Unit 3 turbine is rated at 100 megawatts gross generation.
Research Cottrell electrostatic precipitators remove particulate matter from the gas leaving the boilers. Each of three (3) precipitator fields in each precipitator has one (1) transformer rectifier. Industry/SCC/NAIS

Sampling Location Information:

Test Parameter Information: AFS #: FRS #:

SCC / Description10100201 External Combustion Boilers - Electric Generation - Bituminous/Subbituminous Coal - Pulverized Coal: Wet 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 URQ3 186 570 1429.2 4 0 3 0 0

Target Parameter Test Method Number of

Test Runs Test Run

Duration Sample

Points Comments Location Carbon Monoxide Method 10 3 240 0 URQ3 Total organic compounds

(TOC) as Propane Method 25A 3 240 0 URQ3

Total Particulate OTM - 27/28 3 240 0 URQ3



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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.
No Modification

Organic Condensible Particulate OTM - 27/28 3 240 0 URQ3

Filterable Particulate OTM - 27/28 3 240 0 URQ3 Filterable PM10 OTM - 27/28 3 240 0 URQ3 Total PM2.5 OTM - 27/28 3 240 0 URQ3 Filterable PM2.5 OTM - 27/28 3 240 0 URQ3 Inorganic (Aqueous)

Condensible Part. OTM - 27/28 3 240 0 URQ3

Cobalt Method 29 3 240 0 URQ3 Selenium Method 29 3 240 0 URQ3 Nickel Method 29 3 240 0 URQ3 Mercury Method 29 3 240 0 URQ3 Manganese Method 29 3 240 0 URQ3 Lead Method 29 3 240 0 URQ3 Arsenic Method 29 3 240 0 URQ3 Chromium Method 29 3 240 0 URQ3 Beryllium Method 29 3 240 0 URQ3 Cadmium Method 29 3 240 0 URQ3 Antimony Method 29 3 240 0 URQ3 Co2 Method 3A CO2 3 240 0 URQ3 O2 Method 3A O2 3 240 0 URQ3



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Sampling / Stack Data Results Summary



### Location URQ3 - Method 10 Average Run Number 1 2 3
Test Date 7/20/2010 7/20/2010 7/21/2010 Run Start Time 8:00:00 AM1:30:00 PM 7:50:00 AM Run Finish Time 12:00:00 PM5:30:00 PM11:50:00 AM Carbon Dioxide, % 13.379 13.187 12.849 13.138 Oxygen, % 6.787 6.815 6.865 6.822 Dry Volumetric Flow Rate, dry scfm 0 0 0 0.000 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Moisture, % 0 0 0 0.000 Fuel Type Coal - Bituminous Coal -

Bituminous Coal -

Bituminous
Fw 10640 10640 10640 10,640.000
Fc 1800 1800 1800 1,800.000



### Location URQ3 - Method 25A Average Run Number 1 2 3
Test Date 7/20/2010 7/20/2010 7/21/2010 Run Start Time 8:00:00 AM1:30:00 PM 7:50:00 AM Run Finish Time 12:00:00 PM5:30:00 PM11:50:00 AM Carbon Dioxide, % 13.379 13.187 12.849 13.138 Oxygen, % 6.787 6.815 6.865 6.822 Dry Volumetric Flow Rate, dry scfm 0 0 0 0.000 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Moisture, % 0 0 0 0.000 Fuel Type Coal - Bituminous Coal -

Bituminous Coal -

Bituminous
Fw 10640 10640 10640 10,640.000
Fc 1800 1800 1800 1,800.000



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Location URQ3 - Method 29 Average Run Number 1 2 3
Test Date 7/20/2010 7/20/2010 7/21/2010 Run Start Time 8:00:00 AM1:30:00 PM 7:50:00 AM Run Finish Time 12:46:00 PM5:58:00 PM12:35:00 PM Net Run Time, minutes 240 240 240 Dry Gas Meter Volume Sampled, dscf 166.511 160.438 164.199 163.716 Moisture Content of Stack Gas, % 7.87 7.40 7.78 7.683 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Carbon Dioxide, % 13.379 13.187 12.849 13.138 Oxygen, % 6.787 6.815 6.865 6.822 Average Stack Gas Temperature, °F 295.56 298.75 293.98 296.097 Dry Volumetric Flow Rate, dry scfm 239,324.8 240,904.7 239,115.2 239,781.567 Actual Wet Volumetric Flue Gas Flow Rate, acfm 373,723.4 375,987.7 372,251.6 373,987.567 Percent Isokinetic of Sampling Rate, % 101.1 96.8 99.8 99.233 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000
Fw 10640 10640 10640 10,640.000
Fc 1800 1800 1800 1,800.000



### Location URQ3 - Method 3A CO2 Average Run Number 1 2 3
Test Date 7/20/2010 7/20/2010 7/21/2010 Run Start Time 8:00:00 AM1:30:00 PM 7:50:00 AM Run Finish Time 12:00:00 PM5:30:00 PM11:50:00 AM Carbon Dioxide, % 13.379 13.187 12.849 13.138 Oxygen, % 6.787 6.815 6.865 6.822 Dry Volumetric Flow Rate, dry scfm 0 0 0 0.000 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Moisture, % 0 0 0 0.000 Fuel Type Coal - Bituminous Coal -

Bituminous Coal -

Bituminous
Fw 10640 10640 10640 10,640.000
Fc 1800 1800 1800 1,800.000



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Location URQ3 - Method 3A O2 Average Run Number 1 2 3
Test Date 7/20/2010 7/20/2010 7/21/2010 Run Start Time 8:00:00 AM1:20:00 PM 7:50:00 AM Run Finish Time 12:00:00 PM5:30:00 PM11:50:00 AM Carbon Dioxide, % 0 0 0 0.000 Oxygen, % 0 6.815 0 2.272 Dry Volumetric Flow Rate, dry scfm 0 0 0 0.000 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Moisture, % 0 0 0 0.000 Fuel Type Coal - Bituminous Coal -

Bituminous Coal -

Bituminous
Fw 10640 10640 10640 10,640.000
Fc 1800 1800 1800 1,800.000



### Location URQ3 - OTM - 27/28 Average Run Number 1 2 3
Test Date 7/20/2010 7/20/2010 7/21/2010 Run Start Time 8:00:00 AM1:30:00 PM 7:50:00 AM Run Finish Time 12:00:00 PM5:30:00 PM11:50:00 AM Net Run Time, minutes 240 243.5 240.75 Dry Gas Meter Volume Sampled, dscf 90.644 90.240 91.063 90.649 Moisture Content of Stack Gas, % 7.13 6.81 6.75 6.897 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Carbon Dioxide, % 13.379 13.187 12.849 13.138 Oxygen, % 6.787 6.815 6.865 6.822 Average Stack Gas Temperature, °F 295.08 297.83 291.50 294.803 Dry Volumetric Flow Rate, dry scfm 246,217.3 250,043.0 248,992.5 248,417.600 Actual Wet Volumetric Flue Gas Flow Rate, acfm 381,308.8 387,309.2 382,214.5 383,610.833 Percent Isokinetic of Sampling Rate, % 104.8 101.3 103.8 103.300 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000
Fw 10640 10640 10640 10,640.000
Fc 1800 1800 1800 1,800.000



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Emissions Summary



### Location: URQ3 - Method 10 Compound: Carbon Monoxide Average Run 1 2 3 lb/mmBtuO2 1.12E-02 1.26E-02 1.61E-02 0.013 ppm 1.06E+01 1.20E+01 1.52E+01 12.600 ppm@7%O2 1.04E+01 1.18E+01 1.51E+01 12.433



### Location: URQ3 - Method 25A Compound: Total organic compounds (TOC) as Average Run 1 2 3 lb/mmBtuO2 4.23E-03 3.28E-03 1.83E-04 0.003 ppm 2.55E+00 1.97E+00 1.10E-01 1.543 ppm@7%O2 2.51E+00 1.94E+00 1.09E-01 1.520



### Location: URQ3 - Method 29 Compound: Antimony Average RunNumber 1 2 3 Mass_mg 0.01293 0.009535 0.00973 0.011 lb/mmBtuO2 2.48E-06 1.90E-06 1.90E-06 0.000 ppm 5.42E-04 4.15E-04 4.13E-04 0.000 ppm@7%O2 5.34E-04 4.10E-04 4.09E-04 0.000 

### Compound: Arsenic Average RunNumber 1 2 3 Mass_mg 0.566 0.486 0.559 0.537 lb/mmBtuO2 1.09E-04 9.69E-05 1.09E-04 0.000 ppm 3.85E-02 3.43E-02 3.86E-02 0.037 ppm@7%O2 3.79E-02 3.38E-02 3.82E-02 0.037 

### Compound: Beryllium Average RunNumber 1 2 3 Mass_mg 0.010225 0.010675 0.008915 0.010 lb/mmBtuO2 1.96E-06 2.13E-06 1.74E-06 0.000 ppm 5.79E-03 6.27E-03 5.12E-03 0.006 ppm@7%O2 5.70E-03 6.19E-03 5.07E-03 0.006 

### Compound: Cadmium Average RunNumber 1 2 3 Mass_mg 0.005377 0.0059185 0.005596 0.006 lb/mmBtuO2 1.03E-06 1.18E-06 1.09E-06 0.000 ppm 2.44E-04 2.79E-04 2.58E-04 0.000 ppm@7%O2 2.40E-04 2.75E-04 2.56E-04 0.000



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Compound: Chromium Average RunNumber 1 2 3 Mass_mg 0.09571 0.10558 0.09166 0.098 lb/mmBtuO2 1.84E-05 2.11E-05 1.79E-05 0.000 ppm 9.39E-03 1.07E-02 9.12E-03 0.010 ppm@7%O2 9.25E-03 1.06E-02 9.03E-03 0.010 

### Compound: Cobalt Average RunNumber 1 2 3 Mass_mg 0.05439 0.054816 0.049184 0.053 lb/mmBtuO2 1.04E-05 1.09E-05 9.62E-06 0.000 ppm 4.71E-03 4.92E-03 4.32E-03 0.005 ppm@7%O2 4.64E-03 4.86E-03 4.28E-03 0.005 

### Compound: Lead Average RunNumber 1 2 3 Mass_mg 0.090596 0.0932325 0.134456 0.106 lb/mmBtuO2 1.74E-05 1.86E-05 2.63E-05 0.000 ppm 2.23E-03 2.38E-03 3.36E-03 0.003 ppm@7%O2 2.20E-03 2.35E-03 3.33E-03 0.003 

### Compound: Manganese Average RunNumber 1 2 3 Mass_mg 0.20274 0.434 0.2274 0.288 lb/mmBtuO2 3.89E-05 8.65E-05 4.45E-05 0.000 ppm 1.88E-02 4.18E-02 2.14E-02 0.027 ppm@7%O2 1.85E-02 4.13E-02 2.12E-02 0.027 

### Compound: Mercury Average RunNumber 1 2 3 Mass_mg 0.0235 0.0344 0.0259 0.028 lb/mmBtuO2 4.51E-06 6.86E-06 5.06E-06 0.000 ppm 5.98E-04 9.08E-04 6.68E-04 0.001 ppm@7%O2 5.89E-04 8.96E-04 6.62E-04 0.001 

### Compound: Nickel Average RunNumber 1 2 3 Mass_mg 0.1469 0.144945 0.13494 0.142 lb/mmBtuO2 2.82E-05 2.89E-05 2.64E-05 0.000 ppm 1.28E-02 1.31E-02 1.19E-02 0.013 ppm@7%O2 1.26E-02 1.29E-02 1.18E-02 0.012 

### Compound: Selenium Average RunNumber 1 2 3 Mass_mg 1.2815 1.2966 1.301 1.293 lb/mmBtuO2 2.46E-04 2.59E-04 2.54E-04 0.000



### Saturday, February 12, 2011 Page 8 of 17

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Process Run Data ppm 8.28E-02 8.69E-02 8.52E-02 0.085 ppm@7%O2 8.16E-02 8.58E-02 8.44E-02 0.084



### Location: URQ3 - OTM - 27/28 Compound: Filterable Particulate Average RunNumber 1 2 3 Mass_mg 456 494 294 414.667 

### Compound: Filterable PM10 Average RunNumber 1 2 3 Mass_mg 223 245 48.1 172.033 

### Compound: Filterable PM2.5 Average RunNumber 1 2 3 Mass_mg 233.3 249.05 246.2 242.850 

### Compound: Inorganic (Aqueous) Condensible Pa Average RunNumber 1 2 3 Mass_mg 319 316 293 309.333 

### Compound: Organic Condensible Particulate Average RunNumber 1 2 3 Mass_mg 10.1 19.1 8.5 12.567 

### Compound: Total Particulate Average RunNumber 1 2 3 Mass_mg 785.1 829 596 736.700 

### Compound: Total PM2.5 Average RunNumber 1 2 3 Mass_mg 562.4 584.15 548.7 565.083



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Process Run Data

APCD Run Data

Process Lab Run Data 

### Run Name Value UOM Comments Target Value 1 Average Heat Input 1024.2 MMBtu/hr M29/OTM27%28/ M3A/M10/M316/ M26 Run 1 6/8/201 09:50 - 14:20 0



### 2 Average Heat Input 1011.9 MMBtu/hr M29/OTM27%28/ M3A/M10/M316/ M26 Run 2 6/8/2010 14:50 - 19:15 0

3 Average Heat Input 1030.7 MMBtu/hr M29/OTM27%28/ M3A/M10/M316/ M26 Run 1 6/8/201 19:40 - 00:15 0

1 Unit Gross Electical Output 98.25 MW M29/OTM27%28/ M3A/M10/M316/ M26/M00010/M00 031 Run 1 6/8/2010 09:50 - 14:20 0

2 Unit Gross Electical Output 96.85 MW M29/OTM27%28/ M3A/M10/M316/ M26 Run 2 6/8/2010 14:50 - 19:15 0



### 3 Unit Gross Electical Output 98.93 MW M29/OTM27%28/ M3A/M10/M316/ M26 Run 1 6/8/201 19:40 - 00:15 0

Run Name Value UOM Comments Target Value 

### 1 ELECTROSTATIC PRECIPITATOR 0 0

Run Name Value UOM Comments 1 Fuel Higher Heating Value 11584Btu/lb 

### 2 Fuel Higher Heating Value 11414Btu/lb 3 Fuel Higher Heating Value 11560Btu/lb 1 Fuel Moisture 6.829 % 2 Fuel Moisture 5.638 %



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3 Fuel Moisture 5.96 % 

### 1 Fuel Mercury Content 0.18 ug/g 2 Fuel Mercury Content 0.2 ug/g 3 Fuel Mercury Content 0.16 ug/g 1 Fuel Cadmium Content 0.4 ug/g 

### 2 Fuel Cadmium Content 0.4 ug/g 3 Fuel Cadmium Content 0.4 ug/g 1 Fuel Nickel Content 18 ug/g 

### 2 Fuel Nickel Content 20 ug/g 3 Fuel Nickel Content 18 ug/g 1 Fuel Arsenic Content 29 ug/g 2 Fuel Arsenic Content 29 ug/g 

### 3 Fuel Arsenic Content 21 ug/g 1 Fuel Chromium Content 20 ug/g 2 Fuel Chromium Content 24 ug/g 

### 3 Fuel Chromium Content 20 ug/g 1 Fuel Beryllium Content 1.4 ug/g 2 Fuel Beryllium Content 1.6 ug/g 3 Fuel Beryllium Content 1.4 ug/g 

### 1 Fuel Lead Content 8 ug/g 2 Fuel Lead Content 9 ug/g 3 Fuel Lead Content 8 ug/g 

### 1 Fuel Manganese Content 39 ug/g 2 Fuel Manganese Content 50 ug/g 3 Fuel Manganese Content 39 ug/g 1 Fuel Chlorine Content 120 ug/g 

### 2 Fuel Chlorine Content 180 ug/g 3 Fuel Chlorine Content 210 ug/g 1 Fuel Fluorine Content 130 ug/g 

### 2 Fuel Fluorine Content 150 ug/g 3 Fuel Fluorine Content 140 ug/g

Saturday, February 12, 2011 Page 11 of 17

### 8/3/2010

Sampling / Stack Data Results Detail



### Location URQ3 - Method 10 Average Run Number 1 2 3 Test Date 7/20/2010 7/20/2010 7/21/2010 Run Start Time 8:00:00 AM 1:30:00 PM 7:50:00 AM Run Finish Time 12:00:00 PM5:30:00 PM11:50:00 AM Carbon Dioxide, % 13.379 13.187 12.849 13.138 Oxygen, % 6.787 6.815 6.865 6.822 Fuel Factor 1.05 1.07 1.09 Dry Volumetric Flow Rate, dry scfm 0 0 0 0.000 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Moisture, % 0 0 0 0.000 Analyzer Make Analyzer Model Analyzer Serial Number Operating Range 0 0 0 0.000 Operating Units ppm % No. Readings/Avg. 240 0 240 160.000 Calibration Set 7 7 7 7.000 Calibration Pre Zero Cylinder ID NA NA NA Calibration Pre Zero Cylinder Instrument Response 0.182 0.251 0.154 0.196 Calibration Pre Zero Cylinder Bias 0.06 0.13 0.03 0.073 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CC41265 CC41265 CC41265 Calibration Pre High Cylinder Instrument Response 92.312 92.169 92.371 92.284 Calibration Pre High Cylinder Bias 0.1 -0.06 0.16 0.067 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID NA NA NA Calibration Post Zero Cylinder Instrument Response 0.251 0.154 0.151 0.185 Calibration Post Zero Cylinder Bias 0.13 0.03 0.02 0.060 Calibration Post Zero Cylinder Drift 0.07 0.1 0.01 0.060 Calibration Post High Cylinder ID CC41265 CC41265 CC41265 Calibration Post High Cylinder Instrument Response 92.169 92.371 92.169 92.236 Calibration Post High Cylinder Bias -0.06 0.16 -0.06 0.013 Calibration Post High Cylinder Drift 0.16 0.22 0.22 0.200 Cavg 10.818 12.152 15.311 12.760 Cavg Units ppmvd ppmvd ppmvd Cgas 10.6183 11.9628 15.1671 12.583 Cgas Units ppmvd ppmvd ppmvd Fuel Type Coal - Bituminous Coal -

Bituminous Coal -

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



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Location URQ3 - Method 25A Average Run Number 1 2 3 Test Date 7/20/2010 7/20/2010 7/21/2010 Run Start Time 8:00:00 AM 1:30:00 PM 7:50:00 AM Run Finish Time 12:00:00 PM5:30:00 PM11:50:00 AM Carbon Dioxide, % 13.379 13.187 12.849 13.138 Oxygen, % 6.787 6.815 6.865 6.822 Fuel Factor 1.05 1.07 1.09 Dry Volumetric Flow Rate, dry scfm 0 0 0 0.000 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Moisture, % 0 0 0 0.000 Analyzer Make Analyzer Model Analyzer Serial Number Operating Range 0 0 0 0.000 Operating Units ppm PPM PPM No. Readings/Avg. 240 240 240 240.000 Calibration Set 8 8 8 8.000 Calibration Pre Zero Cylinder ID NA NA NA Calibration Pre Zero Cylinder Instrument Response 0.015 0.662 0.032 0.236 Calibration Pre Zero Cylinder Bias -0.34 0.25 -0.32 -0.137 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID SG9111990B ALSG9111990B

ALSG9111990B

AL Calibration Pre High Cylinder Instrument Response 94.121 94.386 94.673 94.393 Calibration Pre High Cylinder Bias -0.19 0.05 0.31 0.057 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID NA NA NA Calibration Post Zero Cylinder Instrument Response 0.662 0.032 0.097 0.264 Calibration Post Zero Cylinder Bias 0.25 -0.32 -0.26 -0.110 Calibration Post Zero Cylinder Drift 0.59 0.57 0.06 0.407 Calibration Post High Cylinder ID SG9111990B ALSG9111990B

ALSG9111990B

AL Calibration Post High Cylinder Instrument Response 94.386 94.673 94.386 94.482 Calibration Post High Cylinder Bias 0.05 0.31 0.05 0.137 Calibration Post High Cylinder Drift 0.24 0.26 0.26 0.253 Cavg 2.885 2.323 0.175 1.794 Cavg Units ppmvd ppmvd ppmvd Cgas 2.5504 1.9734 0.11 1.545 Cgas Units ppmvd ppmvd ppmvd Fuel Type Coal - Bituminous Coal -

Bituminous Coal -

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



### Saturday, February 12, 2011 Page 13 of 17

### 8/3/2010

Location URQ3 - Method 29 Average Run Number 1 2 3 Test Date 7/20/2010 7/20/2010 7/21/2010 Run Start Time 8:00:00 AM 1:30:00 PM 7:50:00 AM Run Finish Time 12:46:00 PM5:58:00 PM12:35:00 PM Net Traversing Points 1 1 1 Net Run Time, minutes 240 240 240 Nozzle Diameter, inches 0.315 0.315 0.315 0.315 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 0.9599 0.9599 0.9599 0.960 Barometric Pressure, inches of Mercury 29.78 29.78 29.79 29.783 Average Orifice Meter Differential, inches H2O 1.52 1.51 1.50 1.510 Dry Gas Meter Volume Sampled, cubic feet 181.872 180.420 178.615 180.302 Average Dry Gas Meter Temperature, °F 93.06 109.40 90.96 97.807 Dry Gas Meter Volume Sampled, dscf 166.511 160.438 164.199 163.716 Total Moisture Liquid collected, g 302.4 272.6 294.3 289.767 Volume of Water Vapor, standard cubic feet 14.23 12.83 13.85 13.637 Moisture Content of Stack Gas, % 7.87 7.40 7.78 7.683 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Dry Mole Fraction 0.9213 0.926 0.9222 0.923 Carbon Dioxide, % 13.379 13.187 12.849 13.138 Oxygen, % 6.787 6.815 6.865 6.822 Carbon Monoxide & Nitrogen, % 79.834 79.998 80.286 80.039 Fuel Factor 1.05 1.07 1.09 Dry Molecular Weight, lb/lb-Mole 30.41 30.38 30.33 30.373 Wet Molecular weight, lb/lb-Mole 29.43 29.46 29.37 29.420 Flue Gas Static Pressure, inches of H2O -0.34 -0.36 -0.36 -0.353 Absolute Flue Gas Pressure, inches of Mercury 29.76 29.75 29.76 29.757 Average Stack Gas Temperature, °F 295.56 298.75 293.98 296.097 Average Velocity Head, inches of H2O 0.245 0.247 0.243 0.245 Average Stack Gas Velocity, feet/second 33.01 33.21 32.88 33.033 Stack Cross-Sectional Area, square feet 188.692 188.692 188.692 188.692 Dry Volumetric Flow Rate, dry scfm 239,324.8 240,904.7 239,115.2239,781.567 Actual Wet Volumetric Flue Gas Flow Rate, acfm 373,723.4 375,987.7 372,251.6373,987.567 Percent Isokinetic of Sampling Rate, % 101.1 96.8 99.8 99.233 Percent Excess Air, % 47.5 47.6 47.9 47.667 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Round Duct Diameter, inches 186 186 186 Rectangular Duct Width, inches 0 0 0 Rectangular Duct Length, inches 0 0 0 Fw 10640 10640 1064010,640.000 Fc 1800 1800 1800 1,800.000



### Saturday, February 12, 2011 Page 14 of 17

### 8/3/2010

Location URQ3 - Method 3A CO2 Average Run Number 1 2 3 Test Date 7/20/2010 7/20/2010 7/21/2010 Run Start Time 8:00:00 AM 1:30:00 PM 7:50:00 AM Run Finish Time 12:00:00 PM5:30:00 PM11:50:00 AM Carbon Dioxide, % 13.379 13.187 12.849 13.138 Oxygen, % 6.787 6.815 6.865 6.822 Fuel Factor 1.05 1.07 1.09 Dry Volumetric Flow Rate, dry scfm 0 0 0 0.000 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Moisture, % 0 0 0 0.000 Analyzer Make Analyzer Model Analyzer Serial Number Operating Range 0 0 0 0.000 Operating Units % % % No. Readings/Avg. 240 240 240 240.000 Calibration Set 6 6 6 6.000 Calibration Pre Zero Cylinder ID NA NA NA Calibration Pre Zero Cylinder Instrument Response 0.0881 0.015 0.061 0.055 Calibration Pre Zero Cylinder Bias 0.69 0.23 0.52 0.480 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CC181928- CO2 CC181928-

CO2 CC181928-

CO2 Calibration Pre High Cylinder Instrument Response 8.013 8.104 8.092 8.070 Calibration Pre High Cylinder Bias -0.25 0.32 0.24 0.103 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID NA NA NA Calibration Post Zero Cylinder Instrument Response 0.015 0.061 0.0748 0.050 Calibration Post Zero Cylinder Bias 0.23 0.52 0.6 0.450 Calibration Post Zero Cylinder Drift 0.46 0.29 0.08 0.277 Calibration Post High Cylinder ID CC181928- CO2 CC181928-

CO2 CC181928-

CO2 Calibration Post High Cylinder Instrument Response 8.104 8.092 8.104 8.100 Calibration Post High Cylinder Bias 0.32 0.24 0.32 0.293 Calibration Post High Cylinder Drift 0.57 0.08 0.08 0.243 Cavg 13.331 13.214 12.858 13.134 Cavg Units %vd %vd %vd Cgas 13.379 13.1874 12.8489 13.138 Cgas Units %vd %vd %vd Fuel Type Coal - Bituminous Coal -

Bituminous Coal -

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



### Saturday, February 12, 2011 Page 15 of 17

### 8/3/2010

Location URQ3 - Method 3A O2 Average Run Number 1 2 3 Test Date 7/20/2010 7/20/2010 7/21/2010 Run Start Time 8:00:00 AM 1:20:00 PM 7:50:00 AM Run Finish Time 12:00:00 PM5:30:00 PM11:50:00 AM Carbon Dioxide, % 0 0 0 0.000 Oxygen, % 0 6.815 0 2.272 Fuel Factor 0 0 0 Dry Volumetric Flow Rate, dry scfm 0 0 0 0.000 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Moisture, % 0 0 0 0.000 Analyzer Make Analyzer Model Analyzer Serial Number Operating Range 0 0 0 0.000 Operating Units % % % No. Readings/Avg. 240 240 240 240.000 Calibration Set 5 5 5 5.000 Calibration Pre Zero Cylinder ID NA NA NA Calibration Pre Zero Cylinder Instrument Response 0.011 0.019 0.037 0.022 Calibration Pre Zero Cylinder Bias -0.98 -0.91 -0.76 -0.883 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CC181928-O2 CC181928- O2 CC181928-

O2 Calibration Pre High Cylinder Instrument Response 6.023 5.99 5.997 6.003 Calibration Pre High Cylinder Bias 0.28 0 0.06 0.113 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID NA NA NA Calibration Post Zero Cylinder Instrument Response 0.019 0.037 0.094 0.050 Calibration Post Zero Cylinder Bias -0.91 -0.76 -0.28 -0.650 Calibration Post Zero Cylinder Drift 0.07 0.15 0.48 0.233 Calibration Post High Cylinder ID CC181928-O2 CC181928- O2 CC181928-

O2 Calibration Post High Cylinder Instrument Response 5.99 5.997 5.99 5.992 Calibration Post High Cylinder Bias 0 0.06 0 0.020 Calibration Post High Cylinder Drift 0.28 0.06 0.06 0.133 Cavg 6.796 6.807 6.851 6.818 Cavg Units %vd %vd %vd Cgas 6.7872 6.8148 6.8645 6.822 Cgas Units %vd %vd %vd Fuel Type Coal - Bituminous Coal -

Bituminous Coal -

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



### Saturday, February 12, 2011 Page 16 of 17

### 8/3/2010

Location URQ3 - OTM - 27/28 Average Run Number 1 2 3 Test Date 7/20/2010 7/20/2010 7/21/2010 Run Start Time 8:00:00 AM 1:30:00 PM 7:50:00 AM Run Finish Time 12:00:00 PM5:30:00 PM11:50:00 AM Net Traversing Points 12 12 12 Net Run Time, minutes 240 243.5 240.75 Nozzle Diameter, inches 0.225 0.225 0.225 0.225 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 1.014 1.014 1.014 1.014 Barometric Pressure, inches of Mercury 29.78 29.78 29.78 29.780 Average Orifice Meter Differential, inches H2O 0.50 0.50 0.50 0.500 Dry Gas Meter Volume Sampled, cubic feet 95.125 94.926 94.554 94.868 Average Dry Gas Meter Temperature, °F 99.92 101.25 94.00 98.390 Dry Gas Meter Volume Sampled, dscf 90.644 90.240 91.063 90.649 Total Moisture Liquid collected, g 147.8 140.1 139.9 142.600 Volume of Water Vapor, standard cubic feet 6.96 6.59 6.59 6.713 Moisture Content of Stack Gas, % 7.13 6.81 6.75 6.897 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Dry Mole Fraction 0.9287 0.9319 0.9325 0.931 Carbon Dioxide, % 13.379 13.187 12.849 13.138 Oxygen, % 6.787 6.815 6.865 6.822 Carbon Monoxide & Nitrogen, % 79.834 79.998 80.286 80.039 Fuel Factor 1.05 1.07 1.09 Dry Molecular Weight, lb/lb-Mole 30.41 30.38 30.33 30.373 Wet Molecular weight, lb/lb-Mole 29.53 29.54 29.50 29.523 Flue Gas Static Pressure, inches of H2O -0.35 -0.35 -0.35 -0.350 Absolute Flue Gas Pressure, inches of Mercury 29.75 29.75 29.75 29.750 Average Stack Gas Temperature, °F 295.08 297.83 291.50 294.803 Average Velocity Head, inches of H2O 0.2559545664 197160.263102045

8516850.258125030

271093 0.259
Average Stack Gas Velocity, feet/second 33.68 34.21 33.76 33.883 Stack Cross-Sectional Area, square feet 188.692 188.692 188.692 188.692 Dry Volumetric Flow Rate, dry scfm 246,217.3 250,043.0 248,992.5248,417.600 Actual Wet Volumetric Flue Gas Flow Rate, acfm 381,308.8 387,309.2 382,214.5383,610.833 Percent Isokinetic of Sampling Rate, % 104.8 101.3 103.8 103.300 Percent Excess Air, % 47.5 47.6 47.9 47.667 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Round Duct Diameter, inches 186 186 186 Rectangular Duct Width, inches 0 0 0 Rectangular Duct Length, inches 0 0 0 Fw 10640 10640 1064010,640.000 Fc 1800 1800 1800 1,800.000



### Saturday, February 12, 2011 Page 17 of 17