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 1 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 1 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: 1 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 1 is a 4722 MMBtu/hr dry bottom, wall fired-opposed 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 264 2544 588 4 0 3 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 1 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 1 9/3/2010 Sampling / Stack Data Results Summary LocationStack Exit - Method 29 Average Run Number 1 2 3 Test Date 3/18/2010 3/18/2010 3/19/2010 Run Start Time Run Finish Time Net Run Time, minutes 240 240 240 Dry Gas Meter Volume Sampled, dscf 189.587 188.717 192.264 190.189 Moisture Content of Stack Gas, % 12.69 12.65 12.89 12.743 Moisture Saturation at Stack Gas Temperature, % 12.94 12.74 13.00 12.893 Carbon Dioxide, % 13.8 13.69 13.59 13.693 Oxygen, % 5.43 5.53 5.67 5.543 Average Stack Gas Temperature, °F 123.17 122.63 123.33 123.043 Dry Volumetric Flow Rate, dry scfm 844,757.8 838,158.6 857,248.4846,721.600 Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,101,397.41,090,905.7 1,120,556.11,104,286.40 0 Percent Isokinetic of Sampling Rate, % 100.2 100.6 100.2 100.333 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 1 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 1 9/3/2010 Emissions Summary Location: Stack Exit - Method 29 Compound: Antimony Average RunNumber 1 2 3 Mass_mg 0.0007454 0.0006654 0.0007654 0.001 lb/mmBtuO2 1.15E-07 1.03E-07 1.18E-07 0.000 Compound: Arsenic Average RunNumber 1 2 3 Mass_mg 0.0052 0.0055 0.0091 0.007 lb/mmBtuO2 7.99E-07 8.54E-07 1.40E-06 0.000 Compound: Beryllium Average RunNumber 1 2 3 Mass_mg 0.000152 0.000202 0.000282 0.000 lb/mmBtuO2 2.34E-08 3.14E-08 4.34E-08 0.000 Compound: Cadmium Average RunNumber 1 2 3 Mass_mg 0.00085 0.000906 0.00079 0.001 lb/mmBtuO2 1.31E-07 1.41E-07 1.22E-07 0.000 Compound: Chromium Average RunNumber 1 2 3 Mass_mg 0.0101 0.00511 0.0077 0.008 lb/mmBtuO2 1.55E-06 7.94E-07 1.18E-06 0.000 Compound: Cobalt Average RunNumber 1 2 3 Mass_mg 0.001553 0.001424 0.001625 0.002 lb/mmBtuO2 2.39E-07 2.21E-07 2.50E-07 0.000 Compound: Filterable Particulate Average RunNumber 1 2 3 Mass_mg 14.1 15.4 25 18.167 lb/mmBtuO2 2.17E-03 2.39E-03 3.85E-03 0.003 Compound: Lead Average RunNumber 1 2 3 Mass_mg 0.003098 0.00231 0.0035 0.003 lb/mmBtuO2 4.76E-07 3.59E-07 5.39E-07 0.000 Compound: Manganese Average
Thursday, February 17, 2011 Page 6 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 1 9/3/2010

Process Run Data RunNumber 1 2 3 Mass_mg 0.006 0.00369 0.00514 0.005 lb/mmBtuO2 9.22E-07 5.73E-07 7.91E-07 0.000 Compound: Nickel Average RunNumber 1 2 3 Mass_mg 0.008 0.00405 0.0068 0.006 lb/mmBtuO2 1.23E-06 6.29E-07 1.05E-06 0.000 Compound: Selenium Average RunNumber 1 2 3 Mass_mg 0.077 0.1056 0.153 0.112 lb/mmBtuO2 1.18E-05 1.64E-05 2.35E-05 0.000
Location: Stack Exit - Method 5/OTM-28 Compound: Filterable Particulate Average RunNumber 1 2 3 Mass_mg 17.5 14.6 19.8 17.300 lb/mmBtuO2 2.87E-03 2.38E-03 3.20E-03 0.003 Compound: Inorganic (Aqueous) Condensible Pa Average RunNumber 1 2 3 Mass_mg 7.6 11.9 15.7 11.733 lb/mmBtuO2 1.25E-03 1.94E-03 2.54E-03 0.002 Compound: Organic Condensible Particulate Average RunNumber 1 2 3 Mass_mg 1.8 1 1.6 1.467 lb/mmBtuO2 2.96E-04 1.63E-04 2.58E-04 0.000 Compound: Total Particulate Average RunNumber 1 2 3 Mass_mg 26.2 26.8 36.4 29.800 lb/mmBtuO2 4.30E-03 4.36E-03 5.88E-03 0.005

Thursday, February 17, 2011 Page 7 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 1 9/3/2010 Process Run Data

Run Name Value UOM Comments Target Value 3 Stack Flow 923.96 KSCFM Collected during run 3 of M29 & M5/OTM-28 0

3 Unit 1 Stack SO2 0.084 lbs/MMBtu Collected during run 3 of M29 & M5/OTM-28 0

3 Unit 1 NOx Outlet 0.097 lbs/MMBtu Collected during run 3 of M29 & M5/OTM-28 0

3 1A East CO Monitor 51.453 ppm Collected during run 3 of M29 & M5/OTM-28 0

3 1B West CO Monitor 71.988 ppm Collected during run 3 of M29 & M5/OTM-28 0

3 Unit 1 ABS Limestone Slurry Feed Flow 71.984 gal/min Collected during run 3 of M29 & M5/OTM-28 0

3 1A AR PMP PH A 134.96 amps Collected during run 3 of M29 & M5/OTM-28 0

3 1B AR PMP PH A 127.45 amps Collected during run 3 of M29 & M5/OTM-28 0

3 1C AR PMP PH A 117.56 amps Collected during run 3 of M29 & M5/OTM-28 0

3 1D AR PMP PH A 0 amps Collected during run 3 of M29 & M5/OTM-28 0

1 1A AR PMP PH A 134.52 amps Collected during run 1 of M29 & M5/OTM-28 0

1 1B AR PMP PH A 127.28 amps Collected during run 1 of M29 & M5/OTM-28 0

1 1C AR PMP PH A 118.25 amps Collected during run 1 of M29 & M5/OTM-28 0

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

2 Heat Input 3713.5Million Btus/hr 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 1 9/3/2010 2 Unit 1 ID Fan Suction Pressure 1 -18.77 in H2O Collected during run 2 of M29 & M5/OTM-28 0

2 1B AH Avg Exit Gas Temp 273.56 Deg F Collected during run 2 of M29 & M5/OTM-28 0

2 1A AH Avg Exit Gas Temp 274.09 Deg F Collected during run 2 of M29 & M5/OTM-28 0

2 CO2 PRI 11.942 % Collected during run 2 of M29 & M5/OTM-28 0

2 Unit 1 Boiler Excess O2 2.452 % Collected during run 2 of M29 & M5/OTM-28 0

2 Unit 1 Pressure Drop Across FGD 7.12 in H2O Collected during run 2 of M29 & M5/OTM-28 0

2 SEL Unit 1 ABS BLD Pump Out pH 5.129 pH Collected during run 2 of M29 & M5/OTM-28 0

2 Net Load 370.55 MW Collected during run 2 of M29 & M5/OTM-28 0

2 Gross Load 393.14 MW Collected during run 2 of M29 & M5/OTM-28 0

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

2 Unit 1 Main Steam Flow 2423.3 KPPH Collected during run 2 of M29 & M5/OTM-28 0

2 Total Coal Flow to All Mills. 309.64 KPPH Collected during run 2 of M29 & M5/OTM-28 0

2 T/R 1-A KVA 18.051 KVA Collected during run 2 of M29 & M5/OTM-28 0

2 T/R 1-B KVA 25.815 KVA Collected during run 2 of M29 & M5/OTM-28 0

2 T/R 2-A KVA 10.427 KVA Collected during run 2 of M29 & M5/OTM-28 0

2 T/R 2-B KVA 34.935 KVA 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 1 9/3/2010 2 T/R 3-A KVA 48.002 KVA Collected during run 2 of M29 & M5/OTM-28 0

2 T/R 3-B KVA 46.226 KVA Collected during run 2 of M29 & M5/OTM-28 0

2 T/R 4-A KVA 58.7 KVA Collected during run 2 of M29 & M5/OTM-28 0

2 T/R 4-B KVA 49.695 KVA Collected during run 2 of M29 & M5/OTM-28 0

2 T/R 1-C KVA 29.956 KVA Collected during run 2 of M29 & M5/OTM-28 0

2 T/R 1-D KVA 13.145 KVA Collected during run 2 of M29 & M5/OTM-28 0

2 T/R 2-C KVA 6.2347 KVA Collected during run 2 of M29 & M5/OTM-28 0

2 T/R 2-D KVA 28.753 KVA Collected during run 2 of M29 & M5/OTM-28 0

2 T/R 3-C KVA 58.020 KVA Collected during run 2 of M29 & M5/OTM-28 0

2 T/R 3-D KVA 46.55 KVA Collected during run 2 of M29 & M5/OTM-28 0

2 T/R 4-C KVA 51.432 KVA Collected during run 2 of M29 & M5/OTM-28 0

2 T/R 4-D KVA 60.519 KVA Collected during run 2 of M29 & M5/OTM-28 0

2 Stack Flow 934.81 KSCFM Collected during run 2 of M29 & M5/OTM-28 0

2 Unit 1 Stack SO2 0.047 lbs/MMBtu Collected during run 2 of M29 & M5/OTM-28 0

2 Unit 1 NOx Outlet 0.068 lbs/MMBtu Collected during run 2 of M29 & M5/OTM-28 0

2 1A East CO Monitor 50.125 ppm Collected during run 2 of M29 & M5/OTM-28 0

Thursday, February 17, 2011 Page 10 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 1 9/3/2010 2 1B West CO Monitor 72.944 ppm Collected during run 2 of M29 & M5/OTM-28 0

2 Unit 1 ABS Limestone Slurry Feed Flow 58.705 gal/min Collected during run 2 of M29 & M5/OTM-28 0

2 1A AR PMP PH A 133.82 amps Collected during run 2 of M29 & M5/OTM-28 0

2 1B AR PMP PH A 125.96 amps Collected during run 2 of M29 & M5/OTM-28 0

2 1C AR PMP PH A 117.44 amps Collected during run 2 of M29 & M5/OTM-28 0

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

3 Heat Input 3659.1Million Btus/hr Collected during run 3 of M29 & M5/OTM-28 0

3 Unit 1 ID Fan Suction Pressure 1 -18.69 in H2O Collected during run 3 of M29 & M5/OTM-28 0

3 1B AH Avg Exit Gas Temp 275.67 Deg F Collected during run 3 of M29 & M5/OTM-28 0

3 1A AH Avg Exit Gas Temp 270.93 Deg F Collected during run 3 of M29 & M5/OTM-28 0

3 CO2 PRI 11.891 % Collected during run 3 of M29 & M5/OTM-28 0

3 Unit 1 Boiler Excess O2 2.483 % Collected during run 3 of M29 & M5/OTM-28 0

3 Unit 1 Pressure Drop Across FGD 7.18 in H2O Collected during run 3 of M29 & M5/OTM-28 0

3 SEL Unit 1 ABS BLD Pump Out pH 5.112 pH Collected during run 3 of M29 & M5/OTM-28 0

3 Net Load 362.64 MW Collected during run 3 of M29 & M5/OTM-28 0

3 Gross Load 385.28 MW 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 1 9/3/2010 3 Fuel Oil Flow 0 KPPH Collected during run 3 of M29 & M5/OTM-28 0

3 Unit 1 Main Steam Flow 2381.8 KPPH Collected during run 3 of M29 & M5/OTM-28 0

3 Total Coal Flow to All Mills. 316.11 KPPH Collected during run 3 of M29 & M5/OTM-28 0

3 T/R 1-A KVA 25.216 KVA Collected during run 3 of M29 & M5/OTM-28 0

3 T/R 1-B KVA 32.943 KVA Collected during run 3 of M29 & M5/OTM-28 0

3 T/R 2-A KVA 14.921 KVA Collected during run 3 of M29 & M5/OTM-28 0

3 T/R 2-B KVA 39.108 KVA Collected during run 3 of M29 & M5/OTM-28 0

3 T/R 3-A KVA 50.251 KVA Collected during run 3 of M29 & M5/OTM-28 0

3 T/R 3-B KVA 46.324 KVA Collected during run 3 of M29 & M5/OTM-28 0

3 T/R 4-A KVA 56.868 KVA Collected during run 3 of M29 & M5/OTM-28 0

3 T/R 4-B KVA 51.216 KVA Collected during run 3 of M29 & M5/OTM-28 0

3 T/R 1-C KVA 36.052 KVA Collected during run 3 of M29 & M5/OTM-28 0

3 T/R 1-D KVA 17.630 KVA Collected during run 3 of M29 & M5/OTM-28 0

3 T/R 2-C KVA 7.046 KVA Collected during run 3 of M29 & M5/OTM-28 0

1 Heat Input 3734.8Million Btus/hr Collected during run 1 of M29 & M5/OTM-28 0

1 Unit 1 ID Fan Suction Pressure 1 -18.65 in H2O Collected during run 1 of M29 & M5/OTM-28 0

Thursday, February 17, 2011 Page 12 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 1 9/3/2010 1 1B AH Avg Exit Gas Temp 273.64 Deg F Collected during run 1 of M29 & M5/OTM-28 0

1 1A AH Avg Exit Gas Temp 269.57 Deg F Collected during run 1 of M29 & M5/OTM-28 0

3 T/R 2-D KVA 35.665 KVA Collected during run 3 of M29 & M5/OTM-28 0

3 T/R 3-C KVA 58.501 KVA Collected during run 3 of M29 & M5/OTM-28 0

1 CO2 PRI 12.031 % Collected during run 1 of M29 & M5/OTM-28 0

1 Unit 1 Boiler Excess O2 2.486 % Collected during run 1 of M29 & M5/OTM-28 0

1 Unit 1 Pressure Drop Across FGD 7.057 in H2O Collected during run 1 of M29 & M5/OTM-28 0

1 SEL Unit 1 ABS BLD Pump Out pH 5.141 pH Collected during run 1 of M29 & M5/OTM-28 0

3 T/R 3-D KVA 45.975 KVA Collected during run 3 of M29 & M5/OTM-28 0

3 T/R 4-C KVA 51.456 KVA Collected during run 3 of M29 & M5/OTM-28 0

1 Net Load 370.57 MW Collected during run 1 of M29 & M5/OTM-28 0

1 Gross Load 393.14 MW Collected during run 1 of M29 & M5/OTM-28 0

3 T/R 4-D KVA 59.511 KVA Collected during run 3 of M29 & M5/OTM-28 0

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

1 Unit 1 Main Steam Flow 2428.2 KPPH Collected during run 1 of M29 & M5/OTM-28 0

1 Total Coal Flow to All Mills. 312.54 KPPH Collected during run 1 of M29 & M5/OTM-28 0

Thursday, February 17, 2011 Page 13 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 1 9/3/2010 1 T/R 1-A KVA 20.396 KVA Collected during run 1 of M29 & M5/OTM-28 0

1 T/R 1-B KVA 25.187 KVA Collected during run 1 of M29 & M5/OTM-28 0

1 T/R 2-A KVA 11.881 KVA Collected during run 1 of M29 & M5/OTM-28 0

1 T/R 2-B KVA 36.874 KVA Collected during run 1 of M29 & M5/OTM-28 0

1 T/R 3-A KVA 55.676 KVA Collected during run 1 of M29 & M5/OTM-28 0

1 T/R 3-B KVA 46.567 KVA Collected during run 1 of M29 & M5/OTM-28 0

1 T/R 4-A KVA 59.486 KVA Collected during run 1 of M29 & M5/OTM-28 0

1 T/R 4-B KVA 50.385 KVA Collected during run 1 of M29 & M5/OTM-28 0

1 T/R 1-C KVA 29.825 KVA Collected during run 1 of M29 & M5/OTM-28 0

1 T/R 1-D KVA 13.617 KVA Collected during run 1 of M29 & M5/OTM-28 0

1 T/R 2-C KVA 6.7397 KVA Collected during run 1 of M29 & M5/OTM-28 0

1 T/R 2-D KVA 30.613 KVA Collected during run 1 of M29 & M5/OTM-28 0

1 T/R 3-C KVA 60.076 KVA Collected during run 1 of M29 & M5/OTM-28 0

1 T/R 3-D KVA 48.322 KVA Collected during run 1 of M29 & M5/OTM-28 0

1 T/R 4-C KVA 52.032 KVA Collected during run 1 of M29 & M5/OTM-28 0

1 T/R 4-D KVA 62.025 KVA Collected during run 1 of M29 & M5/OTM-28 0

Thursday, February 17, 2011 Page 14 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 1 9/3/2010

APCD Run Data

Process Lab Run Data 1 Stack Flow 932.25 KSCFM Collected during run 1 of M29 & M5/OTM-28 0

1 Unit 1 Stack SO2 0.051 lbs/MMBtu Collected during run 1 of M29 & M5/OTM-28 0

1 Unit 1 NOx Outlet 0.072 lbs/MMBtu Collected during run 1 of M29 & M5/OTM-28 0

1 1A East CO Monitor 46.105 ppm Collected during run 1 of M29 & M5/OTM-28 0

1 1B West CO Monitor 72.198 ppm Collected during run 1 of M29 & M5/OTM-28 0

1 Unit 1 ABS Limestone Slurry Feed Flow 57.369 gal/min Collected during run 1 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+05mg/L 1 2a - Scrubber TSS 1E+05mg/L 1 3a - Scrubber TSS 2E+05 mg/L 1 1a - Scrubber TDS 31000 mg/L 1 2a - Scrubber TDS 35100 mg/L 1 3a - Scrubber TDS 33400 mg/L 1 Average Scrubber TSS 2E+05 mg/L 1 Average Scrubber TDS 33167 mg/L 2 1a - Scrubber TSS 2E+05mg/L 2 2a - Scrubber TSS 2E+05 mg/L 2 3a - Scrubber TSS 2E+05 mg/L 2 1a - Scrubber TDS 26800 mg/L 2 2a - Scrubber TDS 32400 mg/L 2 3a - Scrubber TDS 28100 mg/L

Thursday, February 17, 2011 Page 15 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 1 9/3/2010 2 Average Scrubber TSS 2E+05 mg/L 2 Average Scrubber TDS 29100 mg/L 3 1a - Scrubber TSS 1E+05mg/L 3 2a - Scrubber TSS 2E+05 mg/L 3 3a - Scrubber TSS 2E+05 mg/L 3 1a - Scrubber TDS 34900 mg/L 3 2a - Scrubber TDS 33200 mg/L 3 3a - Scrubber TDS 34300 mg/L 3 Average Scrubber TSS 2E+05mg/L 3 Average Scrubber TDS 34133 mg/L

Thursday, February 17, 2011 Page 16 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 1 9/3/2010 Sampling / Stack Data Results Detail LocationStack Exit - Method 29 Average Run Number 1 2 3 Test Date 3/18/2010 3/18/2010 3/19/2010 Run Start Time Run Finish Time Net Traversing Points 24 24 24 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 29.06 29.06 29.06 29.060 Average Orifice Meter Differential, inches H2O 2.20 2.17 2.28 2.217 Dry Gas Meter Volume Sampled, cubic feet 200.697 202.115 203.819 202.210 Average Dry Gas Meter Temperature, °F 85.08 91.42 85.96 87.487 Dry Gas Meter Volume Sampled, dscf 189.587 188.717 192.264 190.189 Total Moisture Liquid collected, g 585.3 580.5 604.7 590.167 Volume of Water Vapor, standard cubic feet 27.55 27.32 28.46 27.777 Moisture Content of Stack Gas, % 12.69 12.65 12.89 12.743 Moisture Saturation at Stack Gas Temperature, % 12.94 12.74 13.00 12.893 Dry Mole Fraction 0.8731 0.8735 0.8711 0.873 Carbon Dioxide, % 13.8 13.69 13.59 13.693 Oxygen, % 5.43 5.53 5.67 5.543 Carbon Monoxide & Nitrogen, % 80.77 80.78 80.74 80.763 Fuel Factor 1.12 1.12 1.12 Dry Molecular Weight, lb/lb-Mole 30.43 30.41 30.40 30.413 Wet Molecular weight, lb/lb-Mole 28.85 28.84 28.80 28.830 Flue Gas Static Pressure, inches of H2O -0.43 -0.34 -0.37 -0.380 Absolute Flue Gas Pressure, inches of Mercury 29.03 29.04 29.03 29.033 Average Stack Gas Temperature, °F 123.17 122.63 123.33 123.043 Average Velocity Head, inches of H2O 0.6493364724 280540.637638764

3440680.670976508

087285 0.653 Average Stack Gas Velocity, feet/second 48.29 47.83 49.13 48.417 Stack Cross-Sectional Area, square feet 380.133 380.133 380.133 380.133 Dry Volumetric Flow Rate, dry scfm 844,757.8 838,158.6 857,248.4846,721.600 Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,101,397.41,090,905.7 1,120,556.11,104,286.4 00 Percent Isokinetic of Sampling Rate, % 100.2 100.6 100.2 100.333 Percent Excess Air, % 34.2 35.0 36.2 35.133 F-Factor, dscfm/MMBtu @ %O2 9780 9780 97809,780.000 Round Duct Diameter, inches 264 264 264 Rectangular Duct Width, inches 0 0 0 Rectangular Duct Length, inches 0 0 0 Fw 10640 10640 1064010,640.000 Fc 1800 1800 18001,800.000

Thursday, February 17, 2011 Page 17 of 18Utility Boiler MACT ICR - Roxboro Steam Electric Plant Unit 1 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