### Name:

Title: Company: Sign Date: Name: Title: Company: Sign Date: Permitted Facility Representative / Date Testing Company Representative / Date 

## Nucla Generating Station Unit 1 Outlet Duct

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.

Tuesday, February 22, 2011 Page 1 of 21

### Nucla Generating Station Unit 1 Outlet Duct

Facility Information:
Nucla Station Unit 1

Nucla CO81424 Contact:Kerry R Pabst Phone: 303-452-6111 Fax: 303-254-6013 Email: kpabst@tristategt.org Testing Company: Platt Environmental Services, Inc. 1520 Kensington Road
Suite 204
Oak Brook IL60523 Contact:Eric Ehlers Phone:630-699-7690 Fax: 630-521-9494 Email: eehlers@plattenv.com

Air Permit Number: 527 Permitted Source ID/Name: 1 1 Permitted Maximum Process Rate:Max. Normal Operation Process Rate: Target Process Test Rate >90%

Description of the source (including control equipment). Please see the attachments for source or process flow diagram: Atmospheric Fluidized Bed Combustion: Circulating Bed (Bitum. Coal), fabric filter baghouse, SNCR Industry/SCC/NAIS221112

Sampling Location Information:

Test Parameter Information: AFS #:0808500001 FRS #:110000467931

SCC / Description10100218 External Combustion Boilers - Electric Generation - Bituminous/Subbituminous Coal - Atmospheric Fluidized Bed Combustion: Circulating Bed (Bitum. 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 Outlet Duct 0 0 0 5 0 25 124 177.37

Target Parameter Test Method Number of

Test Runs Test Run

Duration Sample

Points Comments Location Custom M0031 3 120 0 Outlet Duct Custom M18 3 120 0 Outlet Duct Total 16*/**PAH M0010 3 120 0 Outlet Duct Carbon Monoxide Method 10 3 120 0 Outlet Duct Formaldehyde Method 0011 3 120 0 Outlet Duct Total organic compounds

(TOC) as Propane Method 25A 3 120 0 Outlet Duct

Filterable Particulate OTM - 27/28 3 360 0 Outlet Duct


### Tuesday, February 22, 2011 Page 2 of 21

### Nucla Generating Station Unit 1 Outlet Duct

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.

Filterable PM2.5 OTM - 27/28 3 360 0 Outlet Duct Inorganic (Aqueous)

Condensible Part. OTM - 27/28 3 360 0 Outlet Duct
Organic Condensible

Particulate OTM - 27/28 3 360 0 Outlet Duct

Total PM2.5 OTM - 27/28 3 360 0 Outlet Duct Total Particulate OTM - 27/28 3 360 0 Outlet Duct Manganese Method 29 3 250 0 Outlet Duct Selenium Method 29 3 250 0 Outlet Duct Cobalt Method 29 3 250 0 Outlet Duct Nickel Method 29 3 250 0 Outlet Duct Lead Method 29 3 250 0 Outlet Duct Antimony Method 29 3 250 0 Outlet Duct Arsenic Method 29 3 250 0 Outlet Duct Chromium Method 29 3 250 0 Outlet Duct Beryllium Method 29 3 250 0 Outlet Duct Cadmium Method 29 3 250 0 Outlet Duct Filterable Particulate Method 29 3 250 0 Outlet Duct Co2 Method 3A CO2 6 360 0 Outlet Duct O2 Method 3A O2 6 360 0 Outlet Duct Mercury Method 30B 3 480 0 Outlet Duct



### Tuesday, February 22, 2011 Page 3 of 21

### Nucla Generating Station Unit 1 Outlet Duct

Sampling / Stack Data Results Summary



### Location Outlet Duct - Method 0011 Average Run Number M0011-1 M0011-2 M0011-3
Test Date 5/14/2010 5/14/2010 5/14/2010 Run Start Time 7:45:00 AM 10:54:00 AM 1:45:00 PM

Run Finish Time 10:06:00 AM1:11:00 PM 3:59:00 PM Net Run Time, minutes 125 125 125 Dry Gas Meter Volume Sampled, dscf 102.748 100.125 99.804 100.892 Moisture Content of Stack Gas, % 5.98 5.48 6.03 5.830 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Carbon Dioxide, % 11.7 11.9 11.8 11.800 Oxygen, % 7.4 7.3 7.2 7.300 Average Stack Gas Temperature, °F 266.00 270.40 273.36 269.920 Dry Volumetric Flow Rate, dry scfm 306,498.0 306,066.6 297,623.0 303,395.867 Actual Wet Volumetric Flue Gas Flow Rate, acfm 547,177.7 546,811.1 537,005.7 543,664.833 Percent Isokinetic of Sampling Rate, % 97.9 95.5 97.9 97.100 F-Factor, dscfm/MMBtu @ %O2 9948 9534 10010 9,830.667
Fw 0 0 0 0.000
Fc 0 0 0 0.000



### Location Outlet Duct - Method 10 Average Run Number 1 2 3
Test Date 5/14/2010 5/14/2010 5/14/2010 Run Start Time 7:45:00 AM 10:45:00 AM 1:45:00 PM

Run Finish Time 9:44:00 AM 12:44:00 PM 3:44:00 PM

Carbon Dioxide, % 11.7 11.8 11.8 11.767 Oxygen, % 7.4 7.3 7.2 7.300 Dry Volumetric Flow Rate, dry scfm 0 0 0 0.000 F-Factor, dscfm/MMBtu @ %O2 9948 9534 10010 9,830.667 Moisture, % 6 5.5 6 5.833 Fuel Type Override Override Override
Fw 0 0 0 0.000
Fc 0 0 0 0.000



### Tuesday, February 22, 2011 Page 4 of 21

### Nucla Generating Station Unit 1 Outlet Duct

Location Outlet Duct - Method 25A Average Run Number 1 2 3
Test Date 5/14/2010 5/14/2010 5/14/2010 Run Start Time 7:45:00 AM 10:45:00 AM 1:45:00 PM

Run Finish Time 9:44:00 AM 12:44:00 PM 3:44:00 PM

Carbon Dioxide, % 11.7 11.8 11.8 11.767 Oxygen, % 7.4 7.3 7.2 7.300 Dry Volumetric Flow Rate, dry scfm 0 0 0 0.000 F-Factor, dscfm/MMBtu @ %O2 9948 9534 10010 9,830.667 Moisture, % 6 5.5 6 5.833 Fuel Type Override Override Override
Fw 0 0 0 0.000
Fc 0 0 0 0.000



### Location Outlet Duct - Method 29 Average Run Number M5/29-1 M5/29-2 M5/29-3
Test Date 5/13/2010 5/13/2010 5/15/2010 Run Start Time 7:48:00 AM2:15:00 PM 6:51:00 AM Run Finish Time 12:17:00 PM6:57:00 PM11:19:00 AM Net Run Time, minutes 250 250 250 Dry Gas Meter Volume Sampled, dscf 198.730 200.200 199.803 199.578 Moisture Content of Stack Gas, % 6.35 6.45 5.78 6.193 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Carbon Dioxide, % 12 12 11.4 11.800 Oxygen, % 7.3 7.3 7.8 7.467 Average Stack Gas Temperature, °F 255.59 262.08 261.64 259.770 Dry Volumetric Flow Rate, dry scfm 316,966.9 313,424.7 321,579.4 317,323.667 Actual Wet Volumetric Flue Gas Flow Rate, acfm 562,481.4 561,839.9 575,310.9 566,544.067 Percent Isokinetic of Sampling Rate, % 100.0 101.9 99.1 100.333 F-Factor, dscfm/MMBtu @ %O2 9806 9821 9952 9,859.667
Fw 0 0 0 0.000
Fc 0 0 0 0.000



### Tuesday, February 22, 2011 Page 5 of 21

### Nucla Generating Station Unit 1 Outlet Duct

Location Outlet Duct - Method 3A CO2 Average Run Number 1 2 3
Test Date 5/13/2010 5/13/2010 5/15/2010 Run Start Time 9:36:00 AM3:50:00 PM 7:35:00 AM
Run Finish Time 1:51:00 PM6:59:00 PM11:34:00 AM Carbon Dioxide, % 0 0 0 0.000 Oxygen, % 0 0 0 0.000 Dry Volumetric Flow Rate, dry scfm 0 0 0 0.000 F-Factor, dscfm/MMBtu @ %O2 0 0 0 0.000 Moisture, % 0 0 0 0.000 Fuel Type
Fw 0 0 0 0.000
Fc 0 0 0 0.000



### Location Outlet Duct - Method 3A CO2 3 Average Run Number 4 5 6
Test Date 5/14/2010 5/14/2010 5/14/2010 Run Start Time 7:45:00 AM 10:45:00 AM 1:45:00 PM

Run Finish Time 9:44:00 AM 12:44:00 PM 3:44:00 PM

Carbon Dioxide, % 0 0 0 0.000 Oxygen, % 0 0 0 0.000 Dry Volumetric Flow Rate, dry scfm 0 0 0 0.000 F-Factor, dscfm/MMBtu @ %O2 0 0 0 0.000 Moisture, % 0 0 0 0.000 Fuel Type
Fw 0 0 0 0.000
Fc 0 0 0 0.000



### Tuesday, February 22, 2011 Page 6 of 21

### Nucla Generating Station Unit 1 Outlet Duct

Location Outlet Duct - Method 3A O2 Average Run Number 1 2 3
Test Date 5/13/2010 5/13/2010 5/15/2010 Run Start Time 9:36:00 AM3:50:00 PM 7:35:00 AM
Run Finish Time 1:51:00 PM6:59:00 PM11:34:00 AM Carbon Dioxide, % 0 0 0 0.000 Oxygen, % 0 0 0 0.000 Dry Volumetric Flow Rate, dry scfm 0 0 0 0.000 F-Factor, dscfm/MMBtu @ %O2 0 0 0 0.000 Moisture, % 0 0 0 0.000 Fuel Type
Fw 0 0 0 0.000
Fc 0 0 0 0.000



### Location Outlet Duct - Method 3A O2 3 Average Run Number 4 5 6
Test Date 5/14/2010 5/14/2010 5/14/2010 Run Start Time 7:45:00 AM 10:45:00 AM 1:45:00 PM

Run Finish Time 9:44:00 AM 12:44:00 PM 3:44:00 PM

Carbon Dioxide, % 0 0 0 0.000 Oxygen, % 0 0 0 0.000 Dry Volumetric Flow Rate, dry scfm 0 0 0 0.000 F-Factor, dscfm/MMBtu @ %O2 0 0 0 0.000 Moisture, % 0 0 0 0.000 Fuel Type
Fw 0 0 0 0.000
Fc 0 0 0 0.000



### Tuesday, February 22, 2011 Page 7 of 21

### Nucla Generating Station Unit 1 Outlet Duct

Location Outlet Duct - OTM - 27/28 Average Run Number MOTM27/O TM28-1 MOTM27/

OTM28-2 MOTM27/O

TM28-3
Test Date 5/13/2010 5/13/2010 5/15/2010 Run Start Time 7:30:00 AM2:12:00 PM 6:51:00 AM Run Finish Time 1:51:00 PM8:17:00 PM12:55:00 PM Net Run Time, minutes 349.25 349.25 351.25 Dry Gas Meter Volume Sampled, dscf 122.564 122.211 120.245 121.673 Moisture Content of Stack Gas, % 5.32 6.14 5.25 5.570 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Carbon Dioxide, % 12 12 11.4 11.800 Oxygen, % 7.3 7.3 7.8 7.467 Average Stack Gas Temperature, °F 259.84 267.52 267.04 264.800 Dry Volumetric Flow Rate, dry scfm 326,449.8 332,983.9 335,097.9 331,510.533 Actual Wet Volumetric Flue Gas Flow Rate, acfm 576,410.6 599,412.0 600,603.3 592,141.967 Percent Isokinetic of Sampling Rate, % 101.8 99.5 96.7 99.333 F-Factor, dscfm/MMBtu @ %O2 9806 9821 9952 9,859.667
Fw 0 0 0 0.000
Fc 0 0 0 0.000



### Tuesday, February 22, 2011 Page 8 of 21

### Nucla Generating Station Unit 1 Outlet Duct

Emissions Summary



### Location: Outlet Duct - Method 0011 Compound: Formaldehyde Average RunNumber M0011-1 M0011-2 M0011-3 Mass_mg 0.013 0.009 0.011 0.011 lb/mmBtuO2 4.30E-06 2.90E-06 3.71E-06 0.000 ppm 3.58E-03 2.54E-03 3.12E-03 0.003 ppm@7%O2 3.69E-03 2.60E-03 3.17E-03 0.003



### Location: Outlet Duct - Method 10 Compound: Carbon Monoxide Average Run 1 2 3 lb/mmBtuO2 1.54E-02 1.58E-02 1.35E-02 0.015 ppm 1.38E+01 1.48E+01 1.22E+01 13.600 ppm@7%O2 1.42E+01 1.51E+01 1.24E+01 13.900



### Location: Outlet Duct - Method 25A Compound: Total organic compounds (TOC) as Average Run 1 2 3 lb/mmBtuO2 2.99E-04 5.68E-04 0.00E+00 0.000 ppm 1.69E-01 3.39E-01 0.00E+00 0.169 ppm@7%O2 1.74E-01 3.46E-01 0.00E+00 0.173



### Location: Outlet Duct - Method 29 Compound: Antimony Average RunNumber M5/29-1 M5/29-2 M5/29-3 Mass_mg 0.004 0.004 0.004 0.004 lb/mmBtuO2 6.69E-07 6.65E-07 7.01E-07 0.000 

### Compound: Arsenic Average RunNumber M5/29-1 M5/29-2 M5/29-3 Mass_mg 0.0042 0.0044 0.004 0.004 lb/mmBtuO2 7.02E-07 7.31E-07 7.01E-07 0.000 

### Compound: Beryllium Average RunNumber M5/29-1 M5/29-2 M5/29-3 Mass_mg 0.00281 0.00296 0.0028 0.003 lb/mmBtuO2 4.70E-07 4.92E-07 4.91E-07 0.000 

### Compound: Cadmium Average RunNumber M5/29-1 M5/29-2 M5/29-3 Mass_mg 0.001 0.001 0.001 0.001 lb/mmBtuO2 1.67E-07 1.66E-07 1.75E-07 0.000



### Tuesday, February 22, 2011 Page 9 of 21

### Nucla Generating Station Unit 1 Outlet Duct

Compound: Chromium Average RunNumber M5/29-1 M5/29-2 M5/29-3 Mass_mg 0.12984 0.27984 0.46552 0.292 lb/mmBtuO2 2.17E-05 4.65E-05 8.16E-05 0.000 

### Compound: Cobalt Average RunNumber M5/29-1 M5/29-2 M5/29-3 Mass_mg 0.00467 0.01014 0.00527 0.007 lb/mmBtuO2 7.81E-07 1.69E-06 9.23E-07 0.000 

### Compound: Filterable Particulate Average RunNumber M5/29-1 M5/29-2 M5/29-3 Mass_mg 209.2 238.4 219.2 222.267 lb/mmBtuO2 3.50E-02 3.96E-02 3.84E-02 0.038 

### Compound: Lead Average RunNumber M5/29-1 M5/29-2 M5/29-3 Mass_mg 0.00946 0.00986 0.00886 0.009 lb/mmBtuO2 1.58E-06 1.64E-06 1.55E-06 0.000 

### Compound: Manganese Average RunNumber M5/29-1 M5/29-2 M5/29-3 Mass_mg 0.12009 0.14309 0.10179 0.122 lb/mmBtuO2 2.01E-05 2.38E-05 1.78E-05 0.000 

### Compound: Nickel Average RunNumber M5/29-1 M5/29-2 M5/29-3 Mass_mg 0.10508 0.22018 0.32868 0.218 lb/mmBtuO2 1.76E-05 3.66E-05 5.76E-05 0.000 

### Compound: Selenium Average RunNumber M5/29-1 M5/29-2 M5/29-3 Mass_mg 0.01 0.0112 0.01 0.010 lb/mmBtuO2 1.67E-06 1.86E-06 1.75E-06 0.000



### Location: Outlet Duct - OTM - 27/28 Compound: Filterable Particulate Average RunNumber MOTM27/OTM28-1 MOTM27/OTM28-2 MOTM27/OTM28-3 Mass_mg 174.2 179.4 184.5 179.367 lb/mmBtuO2 4.72E-02 4.88E-02 5.37E-02 0.050 

### Compound: Filterable PM2.5 Average RunNumber MOTM27/OTM28-1 MOTM27/OTM28-2 MOTM27/OTM28-3 Mass_mg 27.1 29.2 27.4 27.900


### Tuesday, February 22, 2011 Page 10 of 21

### Nucla Generating Station Unit 1 Outlet Duct

Process Run Data lb/mmBtuO2 7.35E-03 7.95E-03 7.98E-03 0.008 

### Compound: Inorganic (Aqueous) Condensible Pa Average RunNumber MOTM27/OTM28-1 MOTM27/OTM28-2 MOTM27/OTM28-3 Mass_mg 17.8 5.9 13 12.233 lb/mmBtuO2 4.82E-03 1.61E-03 3.78E-03 0.003 

### Compound: Organic Condensible Particulate Average RunNumber MOTM27/OTM28-1 MOTM27/OTM28-2 MOTM27/OTM28-3 Mass_mg 0.9 1 2.4 1.433 lb/mmBtuO2 2.44E-04 2.72E-04 6.99E-04 0.000 

### Compound: Total Particulate Average RunNumber MOTM27/OTM28-1 MOTM27/OTM28-2 MOTM27/OTM28-3 Mass_mg 192.9 186.3 199.9 193.033 lb/mmBtuO2 5.23E-02 5.07E-02 5.82E-02 0.054 

### Compound: Total PM2.5 Average RunNumber MOTM27/OTM28-1 MOTM27/OTM28-2 MOTM27/OTM28-3 Mass_mg 45.8 36.1 42.8 41.567 lb/mmBtuO2 1.24E-02 9.83E-03 1.25E-02 0.012



### Tuesday, February 22, 2011 Page 11 of 21

### Nucla Generating Station Unit 1 Outlet Duct

Process Run Data

APCD Run Data

Process Lab Run Data



### Tuesday, February 22, 2011 Page 12 of 21

### Nucla Generating Station Unit 1 Outlet Duct

Sampling / Stack Data Results Detail



### Location Outlet Duct - Method 0011 Average Run Number M0011-1 M0011-2 M0011-3 Test Date 5/14/2010 5/14/2010 5/14/2010 Run Start Time 7:45:00 AM10:54:00 AM 1:45:00 PM Run Finish Time 10:06:00 AM 1:11:00 PM 3:59:00 PM Net Traversing Points 30 30 30 Net Run Time, minutes 125 125 125 Nozzle Diameter, inches 0.277 0.277 0.277 0.277 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 0.991 0.991 0.991 0.991 Barometric Pressure, inches of Mercury 24.42 24.42 24.42 24.420 Average Orifice Meter Differential, inches H2O 2.45 2.49 2.41 2.450 Dry Gas Meter Volume Sampled, cubic feet 125.314 124.800 126.768 125.627 Average Dry Gas Meter Temperature, °F 64.70 76.30 86.38 75.793 Dry Gas Meter Volume Sampled, dscf 102.748 100.125 99.804 100.892 Total Moisture Liquid collected, g 138.7 123.4 136 132.700 Volume of Water Vapor, standard cubic feet 6.53 5.81 6.40 6.247 Moisture Content of Stack Gas, % 5.98 5.48 6.03 5.830 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Dry Mole Fraction 0.9402 0.9452 0.9397 0.942 Carbon Dioxide, % 11.7 11.9 11.8 11.800 Oxygen, % 7.4 7.3 7.2 7.300 Carbon Monoxide & Nitrogen, % 80.9 80.8 81 80.900 Fuel Factor 1.15 1.14 1.16 Dry Molecular Weight, lb/lb-Mole 30.17 30.20 30.18 30.183 Wet Molecular weight, lb/lb-Mole 29.44 29.53 29.45 29.473 Flue Gas Static Pressure, inches of H2O 1.2 1.2 1.2 1.200 Absolute Flue Gas Pressure, inches of Mercury 24.51 24.51 24.51 24.510 Average Stack Gas Temperature, °F 266.00 270.40 273.36 269.920 Average Velocity Head, inches of H2O 0.6871657556 37460.684146870

8326720.655404262

814595 0.676
Average Stack Gas Velocity, feet/second 59.71 59.67 58.60 59.327 Stack Cross-Sectional Area, square feet 152.732 152.732 152.732 152.732 Dry Volumetric Flow Rate, dry scfm 306,498.0 306,066.6 297,623.0303,395.867 Actual Wet Volumetric Flue Gas Flow Rate, acfm 547,177.7 546,811.1 537,005.7543,664.833 Percent Isokinetic of Sampling Rate, % 97.9 95.5 97.9 97.100 Percent Excess Air, % 53.0 52.0 50.8 51.933 F-Factor, dscfm/MMBtu @ %O2 9948 9534 10010 9,830.667 Round Duct Diameter, inches 0 0 0 Rectangular Duct Width, inches 123.996 123.996 123.996 Rectangular Duct Length, inches 177.372 177.372 177.372 Fw 0 0 0 0.000 Fc 0 0 0 0.000



### Tuesday, February 22, 2011 Page 13 of 21

### Nucla Generating Station Unit 1 Outlet Duct

Location Outlet Duct - Method 10 Average Run Number 1 2 3 Test Date 5/14/2010 5/14/2010 5/14/2010 Run Start Time 7:45:00 AM10:45:00 AM 1:45:00 PM Run Finish Time 9:44:00 AM12:44:00 PM 3:44:00 PM Carbon Dioxide, % 11.7 11.8 11.8 11.767 Oxygen, % 7.4 7.3 7.2 7.300 Fuel Factor 1.15 1.15 1.16 Dry Volumetric Flow Rate, dry scfm 0 0 0 0.000 F-Factor, dscfm/MMBtu @ %O2 9948 9534 10010 9,830.667 Moisture, % 6 5.5 6 5.833 Analyzer Make Thermo Thermo Thermo Analyzer Model 48i 48i 48i Analyzer Serial Number Operating Range 0 200 200 133.333 Operating Units ppm ppm No. Readings/Avg. 0 1 1 0.667 Calibration Set 3 3 3 3.000 Calibration Pre Zero Cylinder ID CC111111 CC111111 CC111111 Calibration Pre Zero Cylinder Instrument Response 0 0.3 0.4 0.233 Calibration Pre Zero Cylinder Bias 0 0.06 0.12 0.060 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CC195317 CC195317 CC195317 Calibration Pre High Cylinder Instrument Response 93.2 92.9 92 92.700 Calibration Pre High Cylinder Bias -0.06 -0.24 -0.77 -0.357 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID CC111111 CC111111 CC111111 Calibration Post Zero Cylinder Instrument Response 0.3 0.4 0.4 0.367 Calibration Post Zero Cylinder Bias 0.06 0.12 0.12 0.100 Calibration Post Zero Cylinder Drift 0.06 0.06 0 0.040 Calibration Post High Cylinder ID CC195317 CC195317 CC195317 Calibration Post High Cylinder Instrument Response 92.9 92 92 92.300 Calibration Post High Cylinder Bias -0.24 -0.77 -0.77 -0.593 Calibration Post High Cylinder Drift 0.18 0.53 0 0.237 Cavg 13.9 15 12.4 13.767 Cavg Units ppmvd ppmvd ppmvd Cgas 13.7648 14.7932 12.1834 13.580 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



### Tuesday, February 22, 2011 Page 14 of 21

### Nucla Generating Station Unit 1 Outlet Duct

Location Outlet Duct - Method 25A Average Run Number 1 2 3 Test Date 5/14/2010 5/14/2010 5/14/2010 Run Start Time 7:45:00 AM10:45:00 AM 1:45:00 PM Run Finish Time 9:44:00 AM12:44:00 PM 3:44:00 PM Carbon Dioxide, % 11.7 11.8 11.8 11.767 Oxygen, % 7.4 7.3 7.2 7.300 Fuel Factor 1.15 1.15 1.16 Dry Volumetric Flow Rate, dry scfm 0 0 0 0.000 F-Factor, dscfm/MMBtu @ %O2 9948 9534 10010 9,830.667 Moisture, % 6 5.5 6 5.833 Analyzer Make VIG VIG VIG Analyzer Model 20 20 20 20.000 Analyzer Serial Number Operating Range 10 10 10 10.000 Operating Units ppm ppm ppm No. Readings/Avg. 1 1 1 1.000 Calibration Set 2 2 2 2.000 Calibration Pre Zero Cylinder ID CC111111 CC111111 CC111111 Calibration Pre Zero Cylinder Instrument Response 0 0.08 0.08 0.053 Calibration Pre Zero Cylinder Bias -0.1 0.7 0.7 0.433 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CC3588 CC3588 CC3588 Calibration Pre High Cylinder Instrument Response 6.04 6.14 6.06 6.080 Calibration Pre High Cylinder Bias 0 1 0.2 0.400 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID CC111111 CC111111 CC111111 Calibration Post Zero Cylinder Instrument Response 0.08 0.08 0.16 0.107 Calibration Post Zero Cylinder Bias 0.7 0.7 1.5 0.967 Calibration Post Zero Cylinder Drift 0.8 0 0.8 0.533 Calibration Post High Cylinder ID CC3588 CC3588 CC3588 Calibration Post High Cylinder Instrument Response 6.14 6.06 6 6.067 Calibration Post High Cylinder Bias 1 0.2 -0.4 0.267 Calibration Post High Cylinder Drift 1 0.8 0.6 0.800 Cavg 0.2 0.4 -0.1 0.167 Cavg Units ppmvw ppmvw ppmvw Cgas 0.1694 0.3386 0 0.169 Cgas Units ppmvd ppmvd ppmvd Fuel Type Override Override Override Fw 0 0 0 0.000 Fc 0 0 0 0.000 Cgasw 0.1592066115 70248 0.32 0 0.160
Cgasw Units ppmvw ppmvw ppmvw



### Tuesday, February 22, 2011 Page 15 of 21

### Nucla Generating Station Unit 1 Outlet Duct

Location Outlet Duct - Method 29 Average Run Number M5/29-1 M5/29-2 M5/29-3 Test Date 5/13/2010 5/13/2010 5/15/2010 Run Start Time 7:48:00 AM 2:15:00 PM 6:51:00 AM Run Finish Time 12:17:00 PM 6:57:00 PM11:19:00 AM Net Traversing Points 55 55 55 Net Run Time, minutes 250 250 250 Nozzle Diameter, inches 0.265 0.265 0.265 0.265 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 0.984 0.984 0.984 0.984 Barometric Pressure, inches of Mercury 24.33 24.33 24.19 24.283 Average Orifice Meter Differential, inches H2O 2.25 2.26 2.33 2.280 Dry Gas Meter Volume Sampled, cubic feet 245.046 248.800 248.581 247.476 Average Dry Gas Meter Temperature, °F 64.49 68.63 66.30 66.473 Dry Gas Meter Volume Sampled, dscf 198.730 200.200 199.803 199.578 Total Moisture Liquid collected, g 286.1 293.2 260.4 279.900 Volume of Water Vapor, standard cubic feet 13.47 13.80 12.26 13.177 Moisture Content of Stack Gas, % 6.35 6.45 5.78 6.193 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Dry Mole Fraction 0.9365 0.9355 0.9422 0.938 Carbon Dioxide, % 12 12 11.4 11.800 Oxygen, % 7.3 7.3 7.8 7.467 Carbon Monoxide & Nitrogen, % 80.7 80.7 80.8 80.733 Fuel Factor 1.13 1.13 1.15 Dry Molecular Weight, lb/lb-Mole 30.21 30.21 30.14 30.187 Wet Molecular weight, lb/lb-Mole 29.43 29.42 29.44 29.430 Flue Gas Static Pressure, inches of H2O 1 1 1 1.000 Absolute Flue Gas Pressure, inches of Mercury 24.40 24.40 24.26 24.353 Average Stack Gas Temperature, °F 255.59 262.08 261.64 259.770 Average Velocity Head, inches of H2O 0.7330643913 607050.724554849

111970.756399530

332473 0.738
Average Stack Gas Velocity, feet/second 61.38 61.31 62.78 61.823 Stack Cross-Sectional Area, square feet 152.732 152.732 152.732 152.732 Dry Volumetric Flow Rate, dry scfm 316,966.9 313,424.7 321,579.4317,323.667 Actual Wet Volumetric Flue Gas Flow Rate, acfm 562,481.4 561,839.9 575,310.9566,544.067 Percent Isokinetic of Sampling Rate, % 100.0 101.9 99.1 100.333 Percent Excess Air, % 52.1 52.1 57.6 53.933 F-Factor, dscfm/MMBtu @ %O2 9806 9821 9952 9,859.667 Round Duct Diameter, inches 0 0 0 Rectangular Duct Width, inches 123.996 123.996 123.996 Rectangular Duct Length, inches 177.372 177.372 177.372 Fw 0 0 0 0.000 Fc 0 0 0 0.000



### Tuesday, February 22, 2011 Page 16 of 21

### Nucla Generating Station Unit 1 Outlet Duct

Location Outlet Duct - Method 3A CO2 Average Run Number 1 2 3 Test Date 5/13/2010 5/13/2010 5/15/2010 Run Start Time 9:36:00 AM 3:50:00 PM 7:35:00 AM Run Finish Time 1:51:00 PM 6:59:00 PM11:34:00 AM Carbon Dioxide, % 0 0 0 0.000 Oxygen, % 0 0 0 0.000 Fuel Factor 0 0 0 Dry Volumetric Flow Rate, dry scfm 0 0 0 0.000 F-Factor, dscfm/MMBtu @ %O2 0 0 0 0.000 Moisture, % 0 0 0 0.000 Analyzer Make Servomex Servomex Servomex Analyzer Model 01440D1 01440D1 014410D157,633.333 Analyzer Serial Number 4326 4326 4326 4,326.000 Operating Range 20 20 20 20.000 Operating Units % % % No. Readings/Avg. 1 1 1 1.000 Calibration Set 0 0 0 0.000 Calibration Pre Zero Cylinder ID CC111111 CC111111 CC111111 Calibration Pre Zero Cylinder Instrument Response 0 -0.21 0.02 -0.063 Calibration Pre Zero Cylinder Bias 0.11 -1.02 -0.16 -0.357 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CC205639ACC205639A CC205639A Calibration Pre High Cylinder Instrument Response 9.84 10.16 9.83 9.943 Calibration Pre High Cylinder Bias -0.96 0.75 -0.27 -0.160 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID CC111111 CC111111 CC111111 Calibration Post Zero Cylinder Instrument Response -0.21 -0.39 0.12 -0.160 Calibration Post Zero Cylinder Bias -1.02 -1.98 0.37 -0.877 Calibration Post Zero Cylinder Drift 1.13 0.96 0.53 0.873 Calibration Post High Cylinder ID CC205639ACC205639A CC205639A Calibration Post High Cylinder Instrument Response 10.16 9.92 9.67 9.917 Calibration Post High Cylinder Bias 0.75 -0.54 -1.12 -0.303 Calibration Post High Cylinder Drift 1.71 1.29 0.85 1.283 Cavg 12.28 12.4 11.31 11.997 Cavg Units %vd %vd %vd Cgas 12.0112 12.0368 11.3793 11.809 Cgas Units %vd %vd %vd Fuel Type Fw 0 0 0 0.000 Fc 0 0 0 0.000 Cgasw 0 0 0 0.000 Cgasw Units



### Tuesday, February 22, 2011 Page 17 of 21

### Nucla Generating Station Unit 1 Outlet Duct

Location Outlet Duct - Method 3A CO2 3 Average Run Number 4 5 6 Test Date 5/14/2010 5/14/2010 5/14/2010 Run Start Time 7:45:00 AM10:45:00 AM 1:45:00 PM Run Finish Time 9:44:00 AM12:44:00 PM 3:44:00 PM Carbon Dioxide, % 0 0 0 0.000 Oxygen, % 0 0 0 0.000 Fuel Factor 0 0 0 Dry Volumetric Flow Rate, dry scfm 0 0 0 0.000 F-Factor, dscfm/MMBtu @ %O2 0 0 0 0.000 Moisture, % 0 0 0 0.000 Analyzer Make Servomex Servomex Servomex Analyzer Model 01440D1 01440D1 01440D114,400.000 Analyzer Serial Number 4326 4326 4326 4,326.000 Operating Range 20 20 20 20.000 Operating Units % % % No. Readings/Avg. 1 1 1 1.000 Calibration Set 0 0 0 0.000 Calibration Pre Zero Cylinder ID CC111111 CC111111 CC111111 Calibration Pre Zero Cylinder Instrument Response 0.03 0.12 0.1 0.083 Calibration Pre Zero Cylinder Bias 0.8 1.28 1.18 1.087 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CC205639ACC205639A CC205639A Calibration Pre High Cylinder Instrument Response 9.83 9.78 9.79 9.800 Calibration Pre High Cylinder Bias -0.11 -0.37 -0.32 -0.267 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID CC111111 CC111111 CC111111 Calibration Post Zero Cylinder Instrument Response 0.12 0.1 0.07 0.097 Calibration Post Zero Cylinder Bias 1.28 1.18 1.02 1.160 Calibration Post Zero Cylinder Drift 0.48 0.1 0.16 0.247 Calibration Post High Cylinder ID CC205639ACC205639A CC205639A Calibration Post High Cylinder Instrument Response 9.78 9.79 9.79 9.787 Calibration Post High Cylinder Bias -0.37 -0.32 -0.32 -0.337 Calibration Post High Cylinder Drift 0.26 0.05 0 0.103 Cavg 11.7 11.8 11.8 11.767 Cavg Units %vd %vd %vd Cgas 11.7086 11.841 11.8297 11.793 Cgas Units %vd %vd %vd Fuel Type Fw 0 0 0 0.000 Fc 0 0 0 0.000 Cgasw 0 0 0 0.000 Cgasw Units



### Tuesday, February 22, 2011 Page 18 of 21

### Nucla Generating Station Unit 1 Outlet Duct

Location Outlet Duct - Method 3A O2 Average Run Number 1 2 3 Test Date 5/13/2010 5/13/2010 5/15/2010 Run Start Time 9:36:00 AM 3:50:00 PM 7:35:00 AM Run Finish Time 1:51:00 PM 6:59:00 PM11:34:00 AM Carbon Dioxide, % 0 0 0 0.000 Oxygen, % 0 0 0 0.000 Fuel Factor 0 0 0 Dry Volumetric Flow Rate, dry scfm 0 0 0 0.000 F-Factor, dscfm/MMBtu @ %O2 0 0 0 0.000 Moisture, % 0 0 0 0.000 Analyzer Make Servomex Servomex Servomex Analyzer Model 01440D1 014410D1 01440D157,633.333 Analyzer Serial Number 4326 4326 4326 4,326.000 Operating Range 25 25 25 25.000 Operating Units % % % No. Readings/Avg. 1 1 1 1.000 Calibration Set 1 1 1 1.000 Calibration Pre Zero Cylinder ID CC111111 CC111111 CC111111 Calibration Pre Zero Cylinder Instrument Response 0.07 0.02 0.03 0.040 Calibration Pre Zero Cylinder Bias 0.18 -0.05 0 0.043 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CC205639 CC205639 CC205639 Calibration Pre High Cylinder Instrument Response 11.88 11.96 11.97 11.937 Calibration Pre High Cylinder Bias -1.32 -0.96 -0.09 -0.790 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID CC111111 CC111111 CC111111 Calibration Post Zero Cylinder Instrument Response 0.02 0.07 0.03 0.040 Calibration Post Zero Cylinder Bias -0.05 0.18 0 0.043 Calibration Post Zero Cylinder Drift 0.23 0.23 0 0.153 Calibration Post High Cylinder ID CC205639 CC205639 CC205639 Calibration Post High Cylinder Instrument Response 11.96 11.98 11.83 11.923 Calibration Post High Cylinder Bias -0.96 -0.87 -0.73 -0.853 Calibration Post High Cylinder Drift 0.36 0.09 0.64 0.363 Cavg 7.3 7.315 7.74 7.452 Cavg Units %vd %vd %vd Cgas 7.2886 7.273 7.749 7.437 Cgas Units %vd %vd %vd Fuel Type Fw 0 0 0 0.000 Fc 0 0 0 0.000 Cgasw 0 0 0 0.000 Cgasw Units



### Tuesday, February 22, 2011 Page 19 of 21

### Nucla Generating Station Unit 1 Outlet Duct

Location Outlet Duct - Method 3A O2 3 Average Run Number 4 5 6 Test Date 5/14/2010 5/14/2010 5/14/2010 Run Start Time 7:45:00 AM10:45:00 AM 1:45:00 PM Run Finish Time 9:44:00 AM12:44:00 PM 3:44:00 PM Carbon Dioxide, % 0 0 0 0.000 Oxygen, % 0 0 0 0.000 Fuel Factor 0 0 0 Dry Volumetric Flow Rate, dry scfm 0 0 0 0.000 F-Factor, dscfm/MMBtu @ %O2 0 0 0 0.000 Moisture, % 0 0 0 0.000 Analyzer Make Servomex Servomex Servomex Analyzer Model 01440D1 01440D1 01440D114,400.000 Analyzer Serial Number 4326 4326 4326 4,326.000 Operating Range 25 25 25 25.000 Operating Units % % % No. Readings/Avg. 1 1 1 1.000 Calibration Set 1 1 1 1.000 Calibration Pre Zero Cylinder ID CC111111 CC111111 CC111111 Calibration Pre Zero Cylinder Instrument Response 0.02 0.02 0.01 0.017 Calibration Pre Zero Cylinder Bias -0.05 -0.05 -0.09 -0.063 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CC205639 CC205639 CC205639 Calibration Pre High Cylinder Instrument Response 11.84 11.86 11.84 11.847 Calibration Pre High Cylinder Bias -0.41 -0.32 -0.41 -0.380 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID CC111111 CC111111 CC111111 Calibration Post Zero Cylinder Instrument Response 0.02 0.01 0.01 0.013 Calibration Post Zero Cylinder Bias -0.05 -0.09 -0.09 -0.077 Calibration Post Zero Cylinder Drift 0 0.04 0 0.013 Calibration Post High Cylinder ID CC205639 CC205639 CC205639 Calibration Post High Cylinder Instrument Response 11.86 11.84 11.83 11.843 Calibration Post High Cylinder Bias -0.32 -0.41 -0.46 -0.397 Calibration Post High Cylinder Drift 0.09 0.09 0.05 0.077 Cavg 7.4 7.27 7.19 7.287 Cavg Units %vd %vd %vd Cgas 7.4424 7.3132 7.2438 7.333 Cgas Units %vd %vd %vd Fuel Type Fw 0 0 0 0.000 Fc 0 0 0 0.000 Cgasw 0 0 0 0.000 Cgasw Units



### Tuesday, February 22, 2011 Page 20 of 21

### Nucla Generating Station Unit 1 Outlet Duct

Location Outlet Duct - OTM - 27/28 Average Run Number MOTM27/OT M28-1MOTM27/O

TM28-2MOTM27/OT

M28-3 Test Date 5/13/2010 5/13/2010 5/15/2010 Run Start Time 7:30:00 AM2:12:00 PM 6:51:00 AM Run Finish Time 1:51:00 PM 8:17:00 PM12:55:00 PM Net Traversing Points 30 30 30 Net Run Time, minutes 349.25 349.25 351.25 Nozzle Diameter, inches 0.172 0.172 0.172 0.172 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 0.991 0.991 0.991 0.991 Barometric Pressure, inches of Mercury 24.33 24.33 24.19 24.283 Average Orifice Meter Differential, inches H2O 0.36 0.36 0.36 0.360 Dry Gas Meter Volume Sampled, cubic feet 150.362 150.951 150.062 150.458 Average Dry Gas Meter Temperature, °F 62.56 66.12 68.52 65.733 Dry Gas Meter Volume Sampled, dscf 122.564 122.211 120.245 121.673 Total Moisture Liquid collected, g 146.2 170 141.5 152.567 Volume of Water Vapor, standard cubic feet 6.88 8.00 6.66 7.180 Moisture Content of Stack Gas, % 5.32 6.14 5.25 5.570 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Dry Mole Fraction 0.9468 0.9386 0.9475 0.944 Carbon Dioxide, % 12 12 11.4 11.800 Oxygen, % 7.3 7.3 7.8 7.467 Carbon Monoxide & Nitrogen, % 80.7 80.7 80.8 80.733 Fuel Factor 1.13 1.13 1.15 Dry Molecular Weight, lb/lb-Mole 30.21 30.21 30.14 30.187 Wet Molecular weight, lb/lb-Mole 29.56 29.46 29.50 29.507 Flue Gas Static Pressure, inches of H2O 1 1 1 1.000 Absolute Flue Gas Pressure, inches of Mercury 24.40 24.40 24.26 24.353 Average Stack Gas Temperature, °F 259.84 267.52 267.04 264.800 Average Velocity Head, inches of H2O 0.7687365334 650.819617579 9328840.819919522

115987 0.803
Average Stack Gas Velocity, feet/second 62.90 65.41 65.54 64.617 Stack Cross-Sectional Area, square feet 152.732 152.732 152.732 152.732 Dry Volumetric Flow Rate, dry scfm 326,449.8 332,983.9 335,097.9331,510.533 Actual Wet Volumetric Flue Gas Flow Rate, acfm 576,410.6 599,412.0 600,603.3592,141.967 Percent Isokinetic of Sampling Rate, % 101.8 99.5 96.7 99.333 Percent Excess Air, % 52.1 52.1 57.6 53.933 F-Factor, dscfm/MMBtu @ %O2 9806 9821 9952 9,859.667 Round Duct Diameter, inches 0 0 0 Rectangular Duct Width, inches 123.996 123.996 123.996 Rectangular Duct Length, inches 177.372 177.372 177.372 Fw 0 0 0 0.000 Fc 0 0 0 0.000



### Tuesday, February 22, 2011 Page 21 of 21