Name: Alan Madewell, P.E.

Title: Manager, Environmental, Energy Supp Company: Progress Energy Carolinas, Inc. Sign Date: 9/3/2010 Name: Carl Fink, P.E. Title: Project Manager Company:TRC Environmental Corporation Sign Date: 9/3/2010 Permitted Facility Representative / Date Testing Company Representative / Date



### Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 2 Final Test Report for

/ / Based on information and belief formed after reasonable inquiry, I certify that the statements and information in this test report are true, accurate, and complete. I have reviewed all testing details and results in this test report and hereby certify that the test report is authentic and accurate.

Thursday, February 17, 2011 Page 1 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 2 9/3/2010 Facility Information: Roxboro Steam Electric Plant 1700 Dunnaway Road

Semora NC27343 Contact:Stephen Boone Phone:919-546-4798 Fax: 919-546-6302 Email: Stephen.Boone@pgnmail.com Testing Company: TRC Companies, Inc. 5540 Centerview Drive Suite 100 Raleigh NC27606 Contact:Carl F. Fink Phone:919-604-7790 Fax: 919-828-1977 Email:cfink@trcsolutions.com

Air Permit Number: 2712 Permitted Source ID/Name: 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: Unit 2 is a 7035 MMBtu/hr dry bottom, tangentially fired, pulverized coal boiler w/ low NOx burners, SCR, wet limestone FGD, and ESP. Industry/SCC/NAIS221112

Sampling Location Information:

Test Parameter Information: AFS #:3714500029 FRS #:110000346386

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 342 2424 588 4 0 4 0 0

Target Parameter Test Method Number of

Test Runs Test Run

Duration Sample

Points Comments Location Filterable Particulate Method 29 3 240 0 Stack Exit Cobalt Method 29 3 240 0 Stack Exit Selenium Method 29 3 240 0 Stack Exit Nickel Method 29 3 240 0 Stack Exit Manganese Method 29 3 240 0 Stack Exit Lead Method 29 3 240 0 Stack Exit Chromium Method 29 3 240 0 Stack Exit
Thursday, February 17, 2011 Page 2 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 2 9/3/2010

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.

Cadmium Method 29 3 240 0 Stack Exit Beryllium Method 29 3 240 0 Stack Exit Arsenic Method 29 3 240 0 Stack Exit Antimony Method 29 3 240 0 Stack Exit Inorganic (Aqueous)

Condensible Part. Method 5/OTM-28 3 240 0 Stack Exit
Filterable Particulate Method 5/OTM-28 3 240 0 Stack Exit Total Particulate Method 5/OTM-28 3 240 0 Stack Exit Organic Condensible

Particulate Method 5/OTM-28 3 240 0 Stack Exit

Thursday, February 17, 2011 Page 3 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 2 9/3/2010 Sampling / Stack Data Results Summary LocationStack Exit - Method 29 Average Run Number 2 3 4 Test Date 3/16/2010 3/17/2010 3/17/2010 Run Start Time Run Finish Time Net Run Time, minutes 240 240 240 Dry Gas Meter Volume Sampled, dscf 194.724 198.124 191.543 194.797 Moisture Content of Stack Gas, % 13.01 12.95 12.88 12.947 Moisture Saturation at Stack Gas Temperature, % 13.34 13.18 13.13 13.217 Carbon Dioxide, % 13.98 14.07 13.98 14.010 Oxygen, % 5.15 5.12 5.14 5.137 Average Stack Gas Temperature, °F 124.34 124.06 123.91 124.103 Dry Volumetric Flow Rate, dry scfm 1,435,471.51,482,846.1 1,420,289.01,446,202.20 0 Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,878,988.51,931,427.1 1,847,984.61,886,133.40 0 Percent Isokinetic of Sampling Rate, % 101.7 100.1 101.1 100.967 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

Thursday, February 17, 2011 Page 4 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 2 9/3/2010 LocationStack Exit - Method 5/OTM-28 Average Run Number Test Date Run Start Time Run Finish Time Net Run Time, minutes Dry Gas Meter Volume Sampled, dscf Moisture Content of Stack Gas, % Moisture Saturation at Stack Gas Temperature, % Carbon Dioxide, % Oxygen, % Average Stack Gas Temperature, °F Dry Volumetric Flow Rate, dry scfm Actual Wet Volumetric Flue Gas Flow Rate, acfm Percent Isokinetic of Sampling Rate, % F-Factor, dscfm/MMBtu @ %O2 Fw Fc

Thursday, February 17, 2011 Page 5 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 2 9/3/2010 Emissions Summary Location: Stack Exit - Method 29 Compound: Antimony Average RunNumber 2 3 4 Mass_mg 0.00056 0.0015054 0.0008454 0.001 lb/mmBtuO2 8.23E-08 2.17E-07 1.26E-07 0.000 Compound: Arsenic Average RunNumber 2 3 4 Mass_mg 0.00325 0.00755 0.00482 0.005 lb/mmBtuO2 4.78E-07 1.09E-06 7.20E-07 0.000 Compound: Beryllium Average RunNumber 2 3 4 Mass_mg 0.000232 0.000662 0.000212 0.000 lb/mmBtuO2 3.41E-08 9.54E-08 3.16E-08 0.000 Compound: Cadmium Average RunNumber 2 3 4 Mass_mg 0.000401 0.0025 0.000321 0.001 lb/mmBtuO2 5.89E-08 3.60E-07 4.79E-08 0.000 Compound: Chromium Average RunNumber 2 3 4 Mass_mg 0.0191 0.0125 0.0047 0.012 lb/mmBtuO2 2.81E-06 1.80E-06 7.02E-07 0.000 Compound: Cobalt Average RunNumber 2 3 4 Mass_mg 0.001985 0.003336 0.001518 0.002 lb/mmBtuO2 2.92E-07 4.81E-07 2.27E-07 0.000 Compound: Filterable Particulate Average RunNumber 2 3 4 Mass_mg 15.1 12 14.5 13.867 lb/mmBtuO2 2.22E-03 1.73E-03 2.16E-03 0.002 Compound: Lead Average RunNumber 2 3 4 Mass_mg 0.00271 0.004795 0.002986 0.003 lb/mmBtuO2 3.98E-07 6.91E-07 4.46E-07 0.000 Compound: Manganese Average
Thursday, February 17, 2011 Page 6 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 2 9/3/2010

Process Run Data RunNumber 2 3 4 Mass_mg 0.0123 0.0091 0.00521 0.009 lb/mmBtuO2 1.81E-06 1.31E-06 7.78E-07 0.000 Compound: Nickel Average RunNumber 2 3 4 Mass_mg 0.0144 0.0094 0.00388 0.009 lb/mmBtuO2 2.12E-06 1.35E-06 5.79E-07 0.000 Compound: Selenium Average RunNumber 2 3 4 Mass_mg 0.0155 0.0279 0.0228 0.022 lb/mmBtuO2 2.28E-06 4.02E-06 3.40E-06 0.000
Location: Stack Exit - Method 5/OTM-28 Compound: Filterable Particulate Average RunNumber 2 3 4 Mass_mg 8.2 14.8 14.6 12.533 lb/mmBtuO2 1.25E-03 2.27E-03 2.26E-03 0.002 Compound: Inorganic (Aqueous) Condensible Pa Average RunNumber 2 3 4 Mass_mg 13.3 7 3.9 8.067 lb/mmBtuO2 2.03E-03 1.07E-03 6.04E-04 0.001 Compound: Organic Condensible Particulate Average RunNumber 2 3 4 Mass_mg 1.3 2.6 1.1 1.667 lb/mmBtuO2 1.99E-04 3.99E-04 1.70E-04 0.000 Compound: Total Particulate Average RunNumber 2 3 4 Mass_mg 22.5 24.1 19.3 21.967 lb/mmBtuO2 3.44E-03 3.70E-03 2.99E-03 0.003

Thursday, February 17, 2011 Page 7 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 2 9/3/2010 Process Run Data

Run Name Value UOM Comments Target Value 1 Heat Input 6183.2Million Btus/hr Collected during run 2 of M29 & M5/OTM-28 0

1 2A1 ID Fan Suction Pressure -25.15 in H2O Collected during run 2 of M29 & M5/OTM-28 0

1 2B AH Avg Exit Gas Temp 271.35 Deg F Collected during run 2 of M29 & M5/OTM-28 0

1 2A AH Avg Exit Gas Temp 275.04 Deg F Collected during run 2 of M29 & M5/OTM-28 0

1 CO2 PRI 12.196 % Collected during run 2 of M29 & M5/OTM-28 0

1 Unit 2 Boiler Excess O2 3.554 % Collected during run 2 of M29 & M5/OTM-28 0

1 Unit 2 Pressure Drop Across FGD 3.677 in H2O Collected during run 2 of M29 & M5/OTM-28 0

1 U2 2A ABS BLD Pump Out pH 5.326 pH Collected during run 2 of M29 & M5/OTM-28 0

1 Net Load 636.01 MW Collected during run 2 of M29 & M5/OTM-28 0

1 Gross Load 672.76 MW Collected during run 2 of M29 & M5/OTM-28 0

1 Fuel Oil Flow 0 KPPH Collected during run 2 of M29 & M5/OTM-28 0

1 Unit 2 Main Steam Flow 4644.8 KPPH Collected during run 2 of M29 & M5/OTM-28 0

1 Total Coal Flow to All Mills. 496.60 KPPH Collected during run 2 of M29 & M5/OTM-28 0

1 T/R 1-A KVA 13.022 KVA Collected during run 2 of M29 & M5/OTM-28 0

1 T/R 1-B KVA 19.887 KVA Collected during run 2 of M29 & M5/OTM-28 0

Thursday, February 17, 2011 Page 8 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 2 9/3/2010 2 Heat Input 6422.2Million Btus/hr Collected during run 3 of M29 & M5/OTM-28 0

2 2A1 ID Fan Suction Pressure -26.45 in H2O Collected during run 3 of M29 & M5/OTM-28 0

1 T/R 2-A KVA 23.093 KVA Collected during run 2 of M29 & M5/OTM-28 0

1 T/R 2-B KVA 31.165 KVA Collected during run 2 of M29 & M5/OTM-28 0

1 T/R 3-A KVA 43.642 KVA Collected during run 2 of M29 & M5/OTM-28 0

1 T/R 3-B KVA 62.996 KVA Collected during run 2 of M29 & M5/OTM-28 0

1 T/R 4-A KVA 15.043 KVA Collected during run 2 of M29 & M5/OTM-28 0

1 T/R 4-B KVA 94.622 KVA Collected during run 2 of M29 & M5/OTM-28 0

1 T/R 1-C KVA 18.682 KVA Collected during run 2 of M29 & M5/OTM-28 0

1 T/R 2-C KVA 44.928 KVA Collected during run 2 of M29 & M5/OTM-28 0

1 T/R 3-C KVA 56.859 KVA Collected during run 2 of M29 & M5/OTM-28 0

1 T/R 4-C KVA 76.621 KVA Collected during run 2 of M29 & M5/OTM-28 0

1 Stack Flow 1519.6 KSCFM Collected during run 2 of M29 & M5/OTM-28 0

1 Unit 2 Stack SO2 0.21 lbs/MMBtu Collected during run 2 of M29 & M5/OTM-28 0

1 2A SCR-O NOx 0.061 lbs/MMBtu Collected during run 2 of M29 & M5/OTM-28 0

1 2A East CO Monitor 1807.8 ppm Collected during run 2 of M29 & M5/OTM-28 0

Thursday, February 17, 2011 Page 9 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 2 9/3/2010 1 2B West CO Monitor 229.91 ppm Collected during run 2 of M29 & M5/OTM-28 0

1 Unit 2 ABS Limestone Slurry Feed Flow 137.44 gal/min Collected during run 2 of M29 & M5/OTM-28 0

1 2A AR PMP PH A 138.44 amps Collected during run 2 of M29 & M5/OTM-28 0

1 2B AR PMP PH A 0 amps Collected during run 2 of M29 & M5/OTM-28 0

1 2C AR PMP PH A 0 amps Collected during run 2 of M29 & M5/OTM-28 0

1 2D AR PMP PH A 177.15 amps Collected during run 2 of M29 & M5/OTM-28 0

1 2E AR PMP PH A 0 amps Collected during run 2 of M29 & M5/OTM-28 0

1 2B SCR-O NOx 0.061 lbs/MMBtu Collected during run 2 of M29 & M5/OTM-28 0

1 2B ID Fan Suction Pressure 3 -24.49 in H2O Collected during run 2 of M29 & M5/OTM-28 0

2 2B AH Avg Exit Gas Temp 272.22 Deg F Collected during run 3 of M29 & M5/OTM-28 0

2 2A AH Avg Exit Gas Temp 275.24 Deg F Collected during run 3 of M29 & M5/OTM-28 0

2 CO2 PRI 12.282 % Collected during run 3 of M29 & M5/OTM-28 0

2 Unit 2 Boiler Excess O2 3.405 % Collected during run 3 of M29 & M5/OTM-28 0

2 Unit 2 Pressure Drop Across FGD 3.672 in H2O Collected during run 3 of M29 & M5/OTM-28 0

2 U2 2A ABS BLD Pump Out pH 5.336 pH Collected during run 3 of M29 & M5/OTM-28 0

2 Net Load 660.68 MW Collected during run 3 of M29 & M5/OTM-28 0

Thursday, February 17, 2011 Page 10 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 2 9/3/2010 2 Gross Load 697.97 MW Collected during run 3 of M29 & M5/OTM-28 0

2 Fuel Oil Flow 0 KPPH Collected during run 3 of M29 & M5/OTM-28 0

2 Unit 2 Main Steam Flow 4872.5 KPPH Collected during run 3 of M29 & M5/OTM-28 0

2 Total Coal Flow to All Mills. 505.8 KPPH Collected during run 3 of M29 & M5/OTM-28 0

2 T/R 1-A KVA 14.619 KVA Collected during run 3 of M29 & M5/OTM-28 0

2 T/R 1-B KVA 21.865 KVA Collected during run 3 of M29 & M5/OTM-28 0

2 T/R 2-A KVA 24.589 KVA Collected during run 3 of M29 & M5/OTM-28 0

2 T/R 2-B KVA 32.141 KVA Collected during run 3 of M29 & M5/OTM-28 0

2 T/R 3-A KVA 42.068 KVA Collected during run 3 of M29 & M5/OTM-28 0

2 T/R 3-B KVA 63.157 KVA Collected during run 3 of M29 & M5/OTM-28 0

2 T/R 4-A KVA 14.493 KVA Collected during run 3 of M29 & M5/OTM-28 0

2 T/R 4-B KVA 89.182 KVA Collected during run 3 of M29 & M5/OTM-28 0

2 T/R 1-C KVA 18.95 KVA Collected during run 3 of M29 & M5/OTM-28 0

2 T/R 2-C KVA 42.185 KVA Collected during run 3 of M29 & M5/OTM-28 0

2 T/R 3-C KVA 55.573 KVA Collected during run 3 of M29 & M5/OTM-28 0

2 T/R 4-C KVA 67.688 KVA Collected during run 3 of M29 & M5/OTM-28 0

Thursday, February 17, 2011 Page 11 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 2 9/3/2010 2 Stack Flow 1565.8 KSCFM Collected during run 3 of M29 & M5/OTM-28 0

2 Unit 2 Stack SO2 0.168 lbs/MMBtu Collected during run 3 of M29 & M5/OTM-28 0

2 2A SCR-O NOx 0.059 lbs/MMBtu Collected during run 3 of M29 & M5/OTM-28 0

2 2A East CO Monitor 1368.3 ppm Collected during run 3 of M29 & M5/OTM-28 0

2 2B West CO Monitor 777.33 ppm Collected during run 3 of M29 & M5/OTM-28 0

2 Unit 2 ABS Limestone Slurry Feed Flow 133.21 gal/min Collected during run 3 of M29 & M5/OTM-28 0

2 2A AR PMP PH A 137.88 amps Collected during run 3 of M29 & M5/OTM-28 0

2 2B AR PMP PH A 0 amps Collected during run 3 of M29 & M5/OTM-28 0

2 2C AR PMP PH A 0 amps Collected during run 3 of M29 & M5/OTM-28 0

2 2D AR PMP PH A 177.52 amps Collected during run 3 of M29 & M5/OTM-28 0

2 2E AR PMP PH A 157.23 amps Collected during run 3 of M29 & M5/OTM-28 0

2 2B SCR-O NOx 0.06 lbs/MMBtu Collected during run 3 of M29 & M5/OTM-28 0

2 2B ID Fan Suction Pressure 3 -25.63 in H2O Collected during run 3 of M29 & M5/OTM-28 0

3 Heat Input 6423.2Million Btus/hr Collected during run 4 of M29 & M5/OTM-28 0

3 2A1 ID Fan Suction Pressure -26.53 in H2O Collected during run 4 of M29 & M5/OTM-28 0

3 2B AH Avg Exit Gas Temp 273.22 Deg F Collected during run 4 of M29 & M5/OTM-28 0

Thursday, February 17, 2011 Page 12 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 2 9/3/2010 3 2A AH Avg Exit Gas Temp 275.27 Deg F Collected during run 4 of M29 & M5/OTM-28 0

3 CO2 PRI 12.377 % Collected during run 4 of M29 & M5/OTM-28 0

3 Unit 2 Boiler Excess O2 3.419 % Collected during run 4 of M29 & M5/OTM-28 0

3 Unit 2 Pressure Drop Across FGD 3.796 in H2O Collected during run 4 of M29 & M5/OTM-28 0

3 U2 2A ABS BLD Pump Out pH 5.337 pH Collected during run 4 of M29 & M5/OTM-28 0

3 Net Load 659.78 MW Collected during run 4 of M29 & M5/OTM-28 0

3 Gross Load 697.06 MW Collected during run 4 of M29 & M5/OTM-28 0

3 Fuel Oil Flow 0 KPPH Collected during run 4 of M29 & M5/OTM-28 0

3 Unit 2 Main Steam Flow 4855.1 KPPH Collected during run 4 of M29 & M5/OTM-28 0

3 Total Coal Flow to All Mills. 505.27 KPPH Collected during run 4 of M29 & M5/OTM-28 0

3 T/R 1-A KVA 13.925 KVA Collected during run 4 of M29 & M5/OTM-28 0

3 T/R 1-B KVA 20.021 KVA Collected during run 4 of M29 & M5/OTM-28 0

3 T/R 2-A KVA 23.182 KVA Collected during run 4 of M29 & M5/OTM-28 0

3 T/R 2-B KVA 31.996 KVA Collected during run 4 of M29 & M5/OTM-28 0

3 T/R 3-A KVA 40.587 KVA Collected during run 4 of M29 & M5/OTM-28 0

3 T/R 3-B KVA 58.292 KVA Collected during run 4 of M29 & M5/OTM-28 0

Thursday, February 17, 2011 Page 13 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 2 9/3/2010 3 T/R 4-A KVA 14.481 KVA Collected during run 4 of M29 & M5/OTM-28 0

3 T/R 4-B KVA 79.294 KVA Collected during run 4 of M29 & M5/OTM-28 0

3 T/R 1-C KVA 15.980 KVA Collected during run 4 of M29 & M5/OTM-28 0

3 T/R 2-C KVA 38.767 KVA Collected during run 4 of M29 & M5/OTM-28 0

3 T/R 3-C KVA 49.119 KVA Collected during run 4 of M29 & M5/OTM-28 0

3 T/R 4-C KVA 57.648 KVA Collected during run 4 of M29 & M5/OTM-28 0

3 Stack Flow 1556.4 KSCFM Collected during run 4 of M29 & M5/OTM-28 0

3 Unit 2 Stack SO2 0.155 lbs/MMBtu Collected during run 4 of M29 & M5/OTM-28 0

3 2A SCR-O NOx 0.061 lbs/MMBtu Collected during run 4 of M29 & M5/OTM-28 0

3 2A East CO Monitor 1396.6 ppm Collected during run 4 of M29 & M5/OTM-28 0

3 2B West CO Monitor 873.16 ppm Collected during run 4 of M29 & M5/OTM-28 0

3 Unit 2 ABS Limestone Slurry Feed Flow 122.25 gal/min Collected during run 4 of M29 & M5/OTM-28 0

3 2A AR PMP PH A 137.98 amps Collected during run 4 of M29 & M5/OTM-28 0

3 2B AR PMP PH A 0 amps Collected during run 4 of M29 & M5/OTM-28 0

3 2C AR PMP PH A 0 amps Collected during run 4 of M29 & M5/OTM-28 0

3 2D AR PMP PH A 177.5 amps Collected during run 4 of M29 & M5/OTM-28 0

Thursday, February 17, 2011 Page 14 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 2 9/3/2010

APCD Run Data

Process Lab Run Data 3 2E AR PMP PH A 156.29 amps Collected during run 4 of M29 & M5/OTM-28 0

3 2B SCR-O NOx 0.062 lbs/MMBtu Collected during run 4 of M29 & M5/OTM-28 0

3 2B ID Fan Suction Pressure 3 -25.88 in H2O Collected during run 4 of M29 & M5/OTM-28 0

Run Name Value UOM Comments Target Value 1 LOW NOX BURNERS 0 0 1 SCR (SELECTIVE CATALYTIC REDUCTION) 0 0 1 WET SCRUBBER 0 0 1 ELECTROSTATIC PRECIPITATOR 0 0

Run Name ValueUOM Comments 1 1a - Scrubber TSS 2E+05 mg/L 2 1a - Scrubber TSS 2E+05 mg/L 3 1a - Scrubber TSS 2E+05 mg/L 1 2a - Scrubber TSS 2E+05 mg/L 2 2a - Scrubber TSS 2E+05 mg/L 3 2a - Scrubber TSS 2E+05 mg/L 1 3a - Scrubber TSS 1E+05 mg/L 2 3a - Scrubber TSS 2E+05 mg/L 3 3a - Scrubber TSS 2E+05 mg/L 1 1a - Scrubber TDS 38800 mg/L 2 1a - Scrubber TDS 25700 mg/L 3 1a - Scrubber TDS 44900 mg/L 1 2a - Scrubber TDS 38300 mg/L 2 2a - Scrubber TDS 43100 mg/L 3 2a - Scrubber TDS 37500 mg/L 1 3a - Scrubber TDS 38400 mg/L 2 3a - Scrubber TDS 39300 mg/L 3 3a - Scrubber TDS 39700 mg/L 1 Average Scrubber TSS 2E+05 mg/L 2 Average Scrubber TSS 2E+05 mg/L 3 Average Scrubber TSS 2E+05 mg/L 1 Average Scrubber TDS 38500 mg/L

Thursday, February 17, 2011 Page 15 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 2 9/3/2010 2 Average Scrubber TDS 36033 mg/L 3 Average Scrubber TDS 40700 mg/L

Thursday, February 17, 2011 Page 16 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 2 9/3/2010 Sampling / Stack Data Results Detail LocationStack Exit - Method 29 Average Run Number 2 3 4 Test Date 3/16/2010 3/17/2010 3/17/2010 Run Start Time Run Finish Time Net Traversing Points 32 32 32 Net Run Time, minutes 240 240 240 Nozzle Diameter, inches 0.255 0.255 0.255 0.255 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 0.9985 0.9985 0.9985 0.999 Barometric Pressure, inches of Mercury 29.11 29.22 29.22 29.183 Average Orifice Meter Differential, inches H2O 2.30 2.43 2.20 2.310 Dry Gas Meter Volume Sampled, cubic feet 205.418 207.295 203.148 205.287 Average Dry Gas Meter Temperature, °F 84.25 82.00 89.09 85.113 Dry Gas Meter Volume Sampled, dscf 194.724 198.124 191.543 194.797 Total Moisture Liquid collected, g 618.7 626 601.8 615.500 Volume of Water Vapor, standard cubic feet 29.12 29.47 28.33 28.973 Moisture Content of Stack Gas, % 13.01 12.95 12.88 12.947 Moisture Saturation at Stack Gas Temperature, % 13.34 13.18 13.13 13.217 Dry Mole Fraction 0.8699 0.8705 0.8712 0.871 Carbon Dioxide, % 13.98 14.07 13.98 14.010 Oxygen, % 5.15 5.12 5.14 5.137 Carbon Monoxide & Nitrogen, % 80.87 80.81 80.88 80.853 Fuel Factor 1.13 1.12 1.13 Dry Molecular Weight, lb/lb-Mole 30.44 30.46 30.44 30.447 Wet Molecular weight, lb/lb-Mole 28.82 28.85 28.84 28.837 Flue Gas Static Pressure, inches of H2O -0.37 -0.42 -0.41 -0.400 Absolute Flue Gas Pressure, inches of Mercury 29.08 29.19 29.19 29.153 Average Stack Gas Temperature, °F 124.34 124.06 123.91 124.103 Average Velocity Head, inches of H2O 0.6701544986 484760.711910600

840550.651710355

661818 0.678 Average Stack Gas Velocity, feet/second 49.09 50.46 48.28 49.277 Stack Cross-Sectional Area, square feet 637.940 637.940 637.940 637.940 Dry Volumetric Flow Rate, dry scfm 1,435,471.51,482,846.1 1,420,289.01,446,202.2 00 Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,878,988.5 1,931,427.1 1,847,984.61,886,133.4 00 Percent Isokinetic of Sampling Rate, % 101.7 100.1 101.1 100.967 Percent Excess Air, % 31.8 31.6 31.7 31.700 F-Factor, dscfm/MMBtu @ %O2 9780 9780 97809,780.000 Round Duct Diameter, inches 342 342 342 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

Thursday, February 17, 2011 Page 17 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 2 9/3/2010 LocationStack Exit - Method 5/OTM-28 Average Run Number Test Date Run Start Time Run Finish Time Net Traversing Points Net Run Time, minutes Nozzle Diameter, inches Pitot Tube Coefficient Dry Gas Meter Calibration Factor Barometric Pressure, inches of Mercury Average Orifice Meter Differential, inches H2O Dry Gas Meter Volume Sampled, cubic feet Average Dry Gas Meter Temperature, °F Dry Gas Meter Volume Sampled, dscf Total Moisture Liquid collected, g Volume of Water Vapor, standard cubic feet Moisture Content of Stack Gas, % Moisture Saturation at Stack Gas Temperature, % Dry Mole Fraction Carbon Dioxide, % Oxygen, % Carbon Monoxide & Nitrogen, % Fuel Factor Dry Molecular Weight, lb/lb-Mole Wet Molecular weight, lb/lb-Mole Flue Gas Static Pressure, inches of H2O Absolute Flue Gas Pressure, inches of Mercury Average Stack Gas Temperature, °F Average Velocity Head, inches of H2O Average Stack Gas Velocity, feet/second Stack Cross-Sectional Area, square feet Dry Volumetric Flow Rate, dry scfm Actual Wet Volumetric Flue Gas Flow Rate, acfm Percent Isokinetic of Sampling Rate, % Percent Excess Air, % F-Factor, dscfm/MMBtu @ %O2 Round Duct Diameter, inches Rectangular Duct Width, inches Rectangular Duct Length, inches Fw Fc

Thursday, February 17, 2011 Page 18 of 18