### Name: Julie Metts, P.E.

Title: Manager- Air Quality Company: Santee Cooper Sign Date: 7/28/2010 Name: Craig McKenzie Title: Senior Project Manager Company:GEL, Engineering, LLC Sign Date: 7/28/2010 Permitted Facility Representative / Date Testing Company Representative / Date



## Santee Cooper-Cross Unit #4, ICR Section 114 Testing

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 03, 2011 Page 1 of 19

### Santee Cooper-Cross Unit #4, ICR Section 114 Testing
7/28/2010 Facility Information: Santee Cooper - Cross Generating Station U
553 Cross Station Road

Pineville SC29468 Contact:Julie Metts, P.E. Phone:843-761-8000, ext. 4688 Fax: 843-761-4156 Email: jjmetts@santeecooper.com Testing Company: GEL Engineering, LLC 2040 Savage Road

Charleston SC29407 Contact:Craig McKenzie Phone:843-769-7378 Fax: 843-769-7197 Email:cam2@gel.com

Air Permit Number: 0420-0030-B04 Permitted Source ID/Name: Coal Fire Boiler Unit 4 Permitted Maximum Process Rate:Max. Normal Operation Process Rate: 5400 MMBtu/hr with steam Target Process Test Rate 5400 MMBtu/hr with steam

Description of the source (including control equipment). Please see the attachments for source or process flow diagram: Coal-Fired Boiler For Electric Generation, LNB, SCR, ESP, & FGD Industry/SCC/NAIS221112

Sampling Location Information:

Test Parameter Information: AFS #:4501500030 FRS #:4911

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 stk exhaust 336 2790 1056 4 0 16 0 0

Target Parameter Test Method Number of

Test Runs Test Run

Duration Sample

Points Comments Location Carbon Monoxide Method 10 3 120 0 stk exhaust Total organic compounds

(TOC) as Propane Method 25A 3 120 0 stk exhaust
Hydrogen Chloride Method 26A 3 180 0 stk exhaust Hydrogen Fluoride Method 26A 3 180 0 stk exhaust Cobalt Method 29 3 240 0 stk exhaust Regulation Description Compound Limit Unit NA 0



### Thursday, February 03, 2011 Page 2 of 19

### Santee Cooper-Cross Unit #4, ICR Section 114 Testing
7/28/2010

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.
NA Selenium Method 29 3 240 0 stk exhaust Nickel Method 29 3 240 0 stk exhaust Manganese Method 29 3 240 0 stk exhaust Lead Method 29 3 240 0 stk exhaust Cadmium Method 29 3 240 0 stk exhaust Arsenic Method 29 3 240 0 stk exhaust Chromium Method 29 3 240 0 stk exhaust Antimony Method 29 3 240 0 stk exhaust Beryllium Method 29 3 240 0 stk exhaust O2 Method 3A O2 3 180 0 stk exhaust Co2 Method 3A CO2 3 180 0 stk exhaust Organic Condensible

Particulate Method 5/OTM-28 3 240 0 stk exhaust

Total Particulate Method 5/OTM-28 3 240 0 stk exhaust Inorganic (Aqueous)

Condensible Part. Method 5/OTM-28 3 240 0 stk exhaust



### Thursday, February 03, 2011 Page 3 of 19

### Santee Cooper-Cross Unit #4, ICR Section 114 Testing
7/28/2010 Sampling / Stack Data Results Summary


### Location stk exhaust - Method 10 Average Run Number 1 2 3
Test Date 5/26/2010 5/26/2010 5/26/2010 Run Start Time 7:50:00 AM 11:00:00 AM 1:16:00 PM

Run Finish Time 10:50:00 AM1:00:00 PM 3:16:00 PM Carbon Dioxide, % 13.36 13.35 13.38 13.363 Oxygen, % 5.96 5.85 5.87 5.893 Dry Volumetric Flow Rate, dry scfm 1364766.6671389183.33 31389016.6671,380,988.88 9 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Moisture, % 15.2 14.3 14.8 14.767 Fuel Type Coal - Bituminous Coal -

Bituminous Coal -

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



### Location stk exhaust - Method 25A Average Run Number 1 2 3
Test Date 5/26/2010 5/26/2010 5/26/2010 Run Start Time 7:50:00 AM 11:00:00 AM 1:16:00 PM

Run Finish Time 9:50:00 AM1:00:00 PM 3:16:00 PM Carbon Dioxide, % 13.36 13.35 13.38 13.363 Oxygen, % 5.96 5.85 5.87 5.893 Dry Volumetric Flow Rate, dry scfm 1364766.6671389183.33 31389016.6671,380,988.88 9 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Moisture, % 15.2 14.3 14.8 14.767 Fuel Type Coal - Bituminous Coal -

Bituminous Coal -

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



### Thursday, February 03, 2011 Page 4 of 19

### Santee Cooper-Cross Unit #4, ICR Section 114 Testing
7/28/2010
Location stk exhaust - Method 26A Average Run Number 1 2 3
Test Date 5/26/2010 5/26/2010 5/26/2010 Run Start Time 8:10:00 AM 11:28:00 AM 2:48:00 PM

Run Finish Time 11:01:15 AM2:19:15 PM 5:39:15 PM Net Run Time, minutes 180 180 180 Dry Gas Meter Volume Sampled, dscf 107.569 115.489 114.418 112.492 Moisture Content of Stack Gas, % 15.66 15.50 15.60 15.587 Moisture Saturation at Stack Gas Temperature, % 13.99 14.23 14.23 14.150 Carbon Dioxide, % 13.43 13.34 13.4 13.390 Oxygen, % 5.49 5.85 5.88 5.740 Average Stack Gas Temperature, °F 127.31 127.94 127.94 127.730 Dry Volumetric Flow Rate, dry scfm 1,390,684.01,388,747.2 1,376,457.41,385,296.20 0 Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,790,730.01,795,163.4 1,779,277.01,788,390.13 3 Percent Isokinetic of Sampling Rate, % 95.8 103.0 103.0 100.600 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 03, 2011 Page 5 of 19

### Santee Cooper-Cross Unit #4, ICR Section 114 Testing
7/28/2010
Location stk exhaust - Method 29 Average Run Number 1 2 3
Test Date 5/25/2010 5/25/2010 5/25/2010 Run Start Time 8:50:00 AM1:15:00 PM 5:40:00 PM Run Finish Time 12:35:00 PM5:00:00 PM 9:25:00 PM Net Run Time, minutes 240 240 240 Dry Gas Meter Volume Sampled, dscf 153.908 152.139 154.590 153.546 Moisture Content of Stack Gas, % 14.87 14.35 14.39 14.537 Moisture Saturation at Stack Gas Temperature, % 14.20 13.97 13.99 14.053 Carbon Dioxide, % 13.51 13.4 13.18 13.363 Oxygen, % 5.99 6.01 5.94 5.980 Average Stack Gas Temperature, °F 127.88 127.25 127.31 127.480 Dry Volumetric Flow Rate, dry scfm 1,390,804.41,380,817.1 1,403,882.21,391,834.56 7 Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,797,010.61,777,429.7 1,807,724.71,794,055.00 0 Percent Isokinetic of Sampling Rate, % 102.8 102.4 102.3 102.500 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 03, 2011 Page 6 of 19

### Santee Cooper-Cross Unit #4, ICR Section 114 Testing
7/28/2010
Location stk exhaust - Method 5/OTM-28 Average Run Number 1 2 3
Test Date 5/25/2010 5/25/2010 5/25/2010 Run Start Time 8:50:00 AM1:15:00 PM 5:40:00 PM Run Finish Time 12:35:00 PM5:00:00 PM 9:25:00 PM Net Run Time, minutes 240 240 240 Dry Gas Meter Volume Sampled, dscf 153.075 153.495 152.875 153.148 Moisture Content of Stack Gas, % 14.69 14.47 14.14 14.433 Moisture Saturation at Stack Gas Temperature, % 14.35 13.97 14.01 14.110 Carbon Dioxide, % 13.51 13.4 13.18 13.363 Oxygen, % 5.99 6.01 5.94 5.980 Average Stack Gas Temperature, °F 128.25 127.25 127.38 127.627 Dry Volumetric Flow Rate, dry scfm 1,382,650.31,393,158.6 1,390,768.61,388,859.16 7 Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,790,730.01,793,316.1 1,791,468.91,791,838.33 3 Percent Isokinetic of Sampling Rate, % 102.9 102.4 102.1 102.467 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 03, 2011 Page 7 of 19

### Santee Cooper-Cross Unit #4, ICR Section 114 Testing
7/28/2010 Emissions Summary


### Location: stk exhaust - Method 10 Compound: Carbon Monoxide Average Run 1 2 3 lb/mmBtuO2 1.42E-02 1.37E-02 1.39E-02 0.014 ppm 1.43E+01 1.39E+01 1.41E+01 14.100 ppm@7%O2 1.33E+01 1.28E+01 1.30E+01 13.033



### Location: stk exhaust - Method 25A Compound: Total organic compounds (TOC) as Average Run 1 2 3 Elb/hr 1.23E+01 9.00E+00 1.31E+01 11.467 lb/mmBtuO2 2.05E-03 1.47E-03 2.13E-03 0.002 ppm 1.31E+00 9.43E-01 1.37E+00 1.208 ppm@7%O2 1.22E+00 8.71E-01 1.27E+00 1.120



### Location: stk exhaust - Method 26A Compound: Hydrogen Chloride Average RunNumber 1 2 3 Mass_mg 0.908 0.596 1.089 0.864 Elb/hr 1.55E+00 9.48E-01 1.73E+00 1.409 gr/dscf 1.30E-04 7.96E-05 1.47E-04 0.000 lb/mmBtuO2 2.47E-04 1.55E-04 2.86E-04 0.000 ppm 1.97E-01 1.20E-01 2.22E-01 0.180 ppm@7%O2 1.78E-01 1.11E-01 2.05E-01 0.165 

### Compound: Hydrogen Fluoride Average RunNumber 1 2 3 Mass_mg 0.394 0.383 0.39 0.389 Elb/hr 6.74E-01 6.09E-01 6.21E-01 0.635 gr/dscf 5.65E-05 5.12E-05 5.26E-05 0.000 lb/mmBtuO2 1.07E-04 9.93E-05 1.02E-04 0.000 ppm 1.55E-01 1.41E-01 1.45E-01 0.147 ppm@7%O2 1.40E-01 1.30E-01 1.34E-01 0.135



### Location: stk exhaust - Method 29 Compound: Antimony Average RunNumber 1 2 3 Mass_mg 0.000675 0.00148 0.000728 0.001 Elb/hr 8.07E-04 1.78E-03 8.75E-04 0.001 gr/dscf 6.77E-08 1.50E-07 7.27E-08 0.000 lb/mmBtuO2 1.33E-07 2.94E-07 1.42E-07 0.000 mg/dscm 1.55E-04 3.44E-04 1.66E-04 0.000 ppm 3.06E-05 6.79E-05 3.29E-05 0.000 ppm@7%O2 2.85E-05 6.34E-05 3.06E-05 0.000



### Thursday, February 03, 2011 Page 8 of 19

### Santee Cooper-Cross Unit #4, ICR Section 114 Testing
7/28/2010 Compound: Arsenic Average RunNumber 1 2 3 Mass_mg 0.01843 0.01502 0.02058 0.018 Elb/hr 2.20E-02 1.80E-02 2.47E-02 0.022 gr/dscf 1.85E-06 1.52E-06 2.05E-06 0.000 lb/mmBtuO2 3.62E-06 2.99E-06 4.01E-06 0.000 mg/dscm 4.23E-03 3.49E-03 4.70E-03 0.004 ppm 1.36E-03 1.12E-03 1.51E-03 0.001 ppm@7%O2 1.27E-03 1.05E-03 1.40E-03 0.001 

### Compound: Beryllium Average RunNumber 1 2 3 Mass_mg 0.000054 0.00005 0.00005 0.000 Elb/hr 6.45E-05 6.00E-05 6.01E-05 0.000 gr/dscf 5.41E-09 5.07E-09 4.99E-09 0.000 lb/mmBtuO2 1.06E-08 9.95E-09 9.74E-09 0.000 mg/dscm 1.24E-05 1.16E-05 1.14E-05 0.000 ppm 3.31E-05 3.10E-05 3.05E-05 0.000 ppm@7%O2 3.09E-05 2.89E-05 2.83E-05 0.000 

### Compound: Cadmium Average RunNumber 1 2 3 Mass_mg 0.00055 0.000307 0.00034 0.000 Elb/hr 6.57E-04 3.69E-04 4.08E-04 0.000 gr/dscf 5.51E-08 3.11E-08 3.39E-08 0.000 lb/mmBtuO2 1.08E-07 6.11E-08 6.62E-08 0.000 mg/dscm 1.26E-04 7.13E-05 7.77E-05 0.000 ppm 2.70E-05 1.52E-05 1.66E-05 0.000 ppm@7%O2 2.52E-05 1.42E-05 1.54E-05 0.000 

### Compound: Chromium Average RunNumber 1 2 3 Mass_mg 0.02375 0.04729 0.03167 0.034 Elb/hr 2.84E-02 5.68E-02 3.80E-02 0.041 gr/dscf 2.38E-06 4.80E-06 3.16E-06 0.000 lb/mmBtuO2 4.66E-06 9.41E-06 6.17E-06 0.000 mg/dscm 5.45E-03 1.10E-02 7.24E-03 0.008 ppm 2.52E-03 5.08E-03 3.35E-03 0.004 ppm@7%O2 2.35E-03 4.74E-03 3.11E-03 0.003 

### Compound: Cobalt Average RunNumber 1 2 3 Mass_mg 0.00141 0.00319 0.000551 0.002 Elb/hr 1.69E-03 3.83E-03 6.62E-04 0.002 gr/dscf 1.41E-07 3.24E-07 5.50E-08 0.000 lb/mmBtuO2 2.77E-07 6.35E-07 1.07E-07 0.000 mg/dscm 3.24E-04 7.41E-04 1.26E-04 0.000 ppm 1.32E-04 3.02E-04 5.14E-05 0.000



### Thursday, February 03, 2011 Page 9 of 19

### Santee Cooper-Cross Unit #4, ICR Section 114 Testing
7/28/2010 ppm@7%O2 1.23E-04 2.82E-04 4.78E-05 0.000 

### Compound: Lead Average RunNumber 1 2 3 Mass_mg 0.00483 0.00206 0.00509 0.004 Elb/hr 5.77E-03 2.47E-03 6.11E-03 0.005 gr/dscf 4.84E-07 2.09E-07 5.08E-07 0.000 lb/mmBtuO2 9.48E-07 4.10E-07 9.92E-07 0.000 mg/dscm 1.11E-03 4.78E-04 1.16E-03 0.001 ppm 1.29E-04 5.55E-05 1.35E-04 0.000 ppm@7%O2 1.20E-04 5.18E-05 1.25E-04 0.000 

### Compound: Manganese Average RunNumber 1 2 3 Mass_mg 0.1147 0.01305 0.01337 0.047 Elb/hr 1.37E-01 1.57E-02 1.61E-02 0.056 gr/dscf 1.15E-05 1.32E-06 1.33E-06 0.000 lb/mmBtuO2 2.25E-05 2.60E-06 2.61E-06 0.000 mg/dscm 2.63E-02 3.03E-03 3.05E-03 0.011 ppm 1.15E-02 1.33E-03 1.34E-03 0.005 ppm@7%O2 1.07E-02 1.24E-03 1.25E-03 0.004 

### Compound: Nickel Average RunNumber 1 2 3 Mass_mg 0.02041 0.0169 0.01906 0.019 Elb/hr 2.44E-02 2.03E-02 2.29E-02 0.023 gr/dscf 2.05E-06 1.71E-06 1.90E-06 0.000 lb/mmBtuO2 4.01E-06 3.36E-06 3.71E-06 0.000 mg/dscm 4.68E-03 3.92E-03 4.35E-03 0.004 ppm 1.92E-03 1.61E-03 1.78E-03 0.002 ppm@7%O2 1.79E-03 1.50E-03 1.65E-03 0.002 

### Compound: Selenium Average RunNumber 1 2 3 Mass_mg 0.139 0.136 0.2099 0.162 Elb/hr 1.66E-01 1.63E-01 2.52E-01 0.194 gr/dscf 1.39E-05 1.38E-05 2.10E-05 0.000 lb/mmBtuO2 2.73E-05 2.71E-05 4.09E-05 0.000 mg/dscm 3.19E-02 3.16E-02 4.80E-02 0.037 ppm 9.72E-03 9.62E-03 1.46E-02 0.011 ppm@7%O2 9.06E-03 8.98E-03 1.36E-02 0.011



### Location: stk exhaust - Method 5/OTM-28 Compound: Inorganic (Aqueous) Condensible Pa Average RunNumber 1 2 3 Mass_mg 85.4 77.8 81.2 81.467 Elb/hr 1.02E+02 9.34E+01 9.77E+01 97.700 gr/dscf 8.61E-03 7.82E-03 8.20E-03 0.008



### Thursday, February 03, 2011 Page 10 of 19

### Santee Cooper-Cross Unit #4, ICR Section 114 Testing
7/28/2010

Process Run Data lb/mmBtuO2 1.69E-02 1.53E-02 1.60E-02 0.016 

### Compound: Organic Condensible Particulate Average RunNumber 1 2 3 Mass_mg 8.8 9.4 11.8 10.000 Elb/hr 1.05E+01 1.13E+01 1.42E+01 12.000 gr/dscf 8.87E-04 9.45E-04 1.19E-03 0.001 lb/mmBtuO2 1.74E-03 1.85E-03 2.33E-03 0.002 

### Compound: Total Particulate Average RunNumber 1 2 3 Mass_mg 89.7 73.3 32.8 65.267 Elb/hr 1.07E+02 8.80E+01 3.95E+01 78.167 gr/dscf 9.04E-03 7.37E-03 3.31E-03 0.007 lb/mmBtuO2 1.77E-02 1.45E-02 6.46E-03 0.013



### Thursday, February 03, 2011 Page 11 of 19

### Santee Cooper-Cross Unit #4, ICR Section 114 Testing
7/28/2010 Process Run Data



### Run Name Value UOM Comments Target Value 1 Feed Rate 469.17 kpph EPA Methods 10, 25A, 26A; 5/26/2010; 8:10- 11:15pm 450

1 Heat Input 5963.4 Million Btus/million BTU using O2EPA Methods 10, 25A, 26A; 5/26/2010; 8:10- 11:15pm 5400

1 Steam Output 4297.5 kpph EPA Methods 10, 25A, 26A; 5/26/2010; 8:10- 11:15pm 4400

1 Gross Electric Output 654.64 MW EPA Methods 10, 25A, 26A; 5/26/2010; 8:10- 11:15pm 625

1 Net Electric Output 617.35 MW EPA Methods 10, 25A, 26A; 5/26/2010; 8:10- 11:15pm 590

4 Feed Rate 469.02 kpph EPA Methods 10, 25A, 26A; 5/26/2010; 11:28- 2:35pm 450

4 Heat Input 5961.5 Million Btus/million BTU using O2EPA Methods 10, 25A, 26A; 5/26/2010; 11:28- 2:35pm 5400

4 Steam Output 4294.9 kpph EPA Methods 10, 25A, 26A; 5/26/2010; 11:28- 2:35pm 4400

4 Gross Electric Output 654.77 MW EPA Methods 10, 25A, 26A; 5/26/2010; 11:28- 2:35pm 625

4 Net Electric Output 617.24 MW EPA Methods 10, 25A, 26A; 5/26/2010; 11:28- 2:35pm 590

5 Feed Rate 470.1 kpph EPA Methods 10, 25A, 26A; 5/26/2010; 2:48- 5:55pm 450



### Thursday, February 03, 2011 Page 12 of 19

### Santee Cooper-Cross Unit #4, ICR Section 114 Testing
7/28/2010 5 Heat Input 5975.2 Million Btus/million BTU using O2EPA Methods 10, 25A, 26A; 5/26/2010; 2:48- 5:55pm 5400

5 Steam Output 4293.9 kpph EPA Methods 10, 25A, 26A; 5/26/2010; 2:48- 5:55pm 4400

5 Gross Electric Output 654.93 MW EPA Methods 10, 25A, 26A; 5/26/2010; 2:48- 5:55pm 625

5 Net Electric Output 617.68 MW EPA Methods 10, 25A, 26A; 5/26/2010; 2:48- 5:55pm 590

6 Feed Rate 466.9 kpph EPA Methods 5/OTM28, 29; 5/25/2010; 8:50- 12:57pm 450

6 Heat Input 5934.6 Million Btus/million BTU using O2EPA Methods 5/OTM28, 29; 5/25/2010; 8:50- 12:57pm 5400

6 Steam Output 4308.7 kpph EPA Methods 5/OTM28, 29; 5/25/2010; 8:50- 12:57pm 4400

6 Gross Electric Output 652.07 MW EPA Methods 5/OTM28, 29; 5/25/2010; 8:50- 12:57pm 625

6 Net Electric Output 615.41 MW EPA Methods 5/OTM28, 29; 5/25/2010; 8:50- 12:57pm 590

7 Feed Rate 466.92 kpph EPA Methods 5/OTM28, 29; 5/25/2010; 1:15- 5:23pm 450

7 Heat Input 5934.7 Million Btus/million BTU using O2EPA Methods 5/OTM28, 29; 5/25/2010; 1:15- 5:23pm 5400

7 Steam Output 4297.5 kpph EPA Methods 5/OTM28, 29; 5/25/2010; 1:15- 5:23pm 4400



### Thursday, February 03, 2011 Page 13 of 19

### Santee Cooper-Cross Unit #4, ICR Section 114 Testing
7/28/2010

APCD Run Data

Process Lab Run Data 7 Gross Electric Output 653.04 MW EPA Methods 5/OTM28, 29; 5/25/2010; 1:15- 5:23pm 625

7 Net Electric Output 616.4 MW EPA Methods 5/OTM28, 29; 5/25/2010; 1:15- 5:23pm 590

8 Feed Rate 467.96 kpph EPA Methods 5/OTM28, 29; 5/25/2010; 5:40- 9:47pm 450

8 Heat Input 5948 Million Btus/million BTU using O2EPA Methods 5/OTM28, 29; 5/25/2010; 5:40- 9:47pm 5400

8 Steam Output 4288.5 kpph EPA Methods 5/OTM28, 29; 5/25/2010; 5:40- 9:47pm 4400

8 Gross Electric Output 652.93 MW EPA Methods 5/OTM28, 29; 5/25/2010; 5:40- 9:47pm 625

8 Net Electric Output 615.85 MW EPA Methods 5/OTM28, 29; 5/25/2010; 5:40- 9:47pm 590



### Run Name Value UOM Comments Target Value 1 Electrostatic Precipitator (ESP) 0 0


### 1 FGD wet limestone scrubber 0 0
1 Selective catalytic Reduction (SCR) with ammonia injection 0 0



### Thursday, February 03, 2011 Page 14 of 19

### Santee Cooper-Cross Unit #4, ICR Section 114 Testing
7/28/2010 Sampling / Stack Data Results Detail


### Location stk exhaust - Method 10 Average Run Number 1 2 3 Test Date 5/26/2010 5/26/2010 5/26/2010 Run Start Time 7:50:00 AM11:00:00 AM 1:16:00 PM Run Finish Time 10:50:00 AM1:00:00 PM 3:16:00 PM Carbon Dioxide, % 13.36 13.35 13.38 13.363 Oxygen, % 5.96 5.85 5.87 5.893 Fuel Factor 1.12 1.13 1.12 Dry Volumetric Flow Rate, dry scfm 1364766.6671389183.3331389016.6671,380,988.8 89 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Moisture, % 15.2 14.3 14.8 14.767 Analyzer Make California Analytics Californai

Analytics California

Analytics Analyzer Model 3300A 3300A 3300A Analyzer Serial Number N3P125OT N3P125OT N3P125OT Operating Range 200 200 200 200.000 Operating Units ppm ppm ppm No. Readings/Avg. 60 60 60 60.000 Calibration Set 1 1 1 1.000 Calibration Pre Zero Cylinder ID A4456 A4456 A4456 Calibration Pre Zero Cylinder Instrument Response 0.85 1 0.9 0.917 Calibration Pre Zero Cylinder Bias 1.3 1.6 1.4 1.433 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID ALM041068CALM041068 CALM041068

C Calibration Pre High Cylinder Instrument Response 49.95 50.5 49.9 50.117 Calibration Pre High Cylinder Bias 0.1 1.2 0 0.433 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID A4456 A4456 A4456 Calibration Post Zero Cylinder Instrument Response 0.9 0.95 0.7 0.850 Calibration Post Zero Cylinder Bias 1.4 1.5 1 1.300 Calibration Post Zero Cylinder Drift 9.9999999999 9999E-02 0.1 0.4 0.200
Calibration Post High Cylinder ID ALM041068CALM041068 CALM041068

C Calibration Post High Cylinder Instrument Response 50.05 49.95 50.5 50.167 Calibration Post High Cylinder Bias 0.3 0.1 1.2 0.533 Calibration Post High Cylinder Drift 0.2 1.1 1.2 0.833 Cavg 14.9 14.67 14.74 14.770 Cavg Units ppmvd ppmvd ppmvd Cgas 14.2748 13.9036 14.1093 14.096 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



### Thursday, February 03, 2011 Page 15 of 19

### Santee Cooper-Cross Unit #4, ICR Section 114 Testing
7/28/2010
Location stk exhaust - Method 25A Average Run Number 1 2 3 Test Date 5/26/2010 5/26/2010 5/26/2010 Run Start Time 7:50:00 AM11:00:00 AM 1:16:00 PM Run Finish Time 9:50:00 AM1:00:00 PM 3:16:00 PM Carbon Dioxide, % 13.36 13.35 13.38 13.363 Oxygen, % 5.96 5.85 5.87 5.893 Fuel Factor 1.12 1.13 1.12 Dry Volumetric Flow Rate, dry scfm 1364766.6671389183.3331389016.6671,380,988.8 89 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Moisture, % 15.2 14.3 14.8 14.767 Analyzer Make JUM JUM JUM Analyzer Model 109A 109A 109A Analyzer Serial Number Operating Range 50 50 50 50.000 Operating Units ppm ppm ppm No. Readings/Avg. 60 60 60 60.000 Calibration Set 7 7 7 7.000 Calibration Pre Zero Cylinder ID A4456 A4456 A4456 Calibration Pre Zero Cylinder Instrument Response 0.1 0.1 0.1 0.100 Calibration Pre Zero Cylinder Bias 0.9 0.9 0.9 0.900 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID ALM029335ALM029335ALM029335 Calibration Pre High Cylinder Instrument Response 9.95 9.98 9.95 9.960 Calibration Pre High Cylinder Bias 0 0.3 0 0.100 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID A4456 A4456 A4456 Calibration Post Zero Cylinder Instrument Response 0.1 0.1 0.2 0.133 Calibration Post Zero Cylinder Bias 0.9 0.9 1.9 1.233 Calibration Post Zero Cylinder Drift 0 0 1 0.333 Calibration Post High Cylinder ID ALM029335ALM029335ALM029335 Calibration Post High Cylinder Instrument Response 9.98 9.95 9.99 9.973 Calibration Post High Cylinder Bias 0.3 0 0.4 0.233 Calibration Post High Cylinder Drift 0.3 0.3 0.4 0.333 Cavg 1.2 0.9 1.3 1.133 Cavg Units ppmvw ppmvw ppmvw Cgas 1.311 0.9434 1.3704 1.208 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 1.1117080587 93720.808514951

8499751.167566191

44603 1.029
Cgasw Units ppmvw ppmvw ppmvw



### Thursday, February 03, 2011 Page 16 of 19

### Santee Cooper-Cross Unit #4, ICR Section 114 Testing
7/28/2010
Location stk exhaust - Method 26A Average Run Number 1 2 3 Test Date 5/26/2010 5/26/2010 5/26/2010 Run Start Time 8:10:00 AM11:28:00 AM 2:48:00 PM Run Finish Time 11:01:15 AM2:19:15 PM 5:39:15 PM Net Traversing Points 16 16 16 Net Run Time, minutes 180 180 180 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 0.9806 0.9806 0.9806 0.981 Barometric Pressure, inches of Mercury 30 30 30 30.000 Average Orifice Meter Differential, inches H2O 1.50 1.52 1.49 1.503 Dry Gas Meter Volume Sampled, cubic feet 115.430 125.280 124.072 121.594 Average Dry Gas Meter Temperature, °F 99.13 105.25 105.00 103.127 Dry Gas Meter Volume Sampled, dscf 107.569 115.489 114.418 112.492 Total Moisture Liquid collected, g 424.3 450.2 449.3 441.267 Volume of Water Vapor, standard cubic feet 19.97 21.19 21.15 20.770 Moisture Content of Stack Gas, % 15.66 15.50 15.60 15.587 Moisture Saturation at Stack Gas Temperature, % 13.99 14.23 14.23 14.150 Dry Mole Fraction 0.8601 0.8577 0.8577 0.859 Carbon Dioxide, % 13.43 13.34 13.4 13.390 Oxygen, % 5.49 5.85 5.88 5.740 Carbon Monoxide & Nitrogen, % 81.08 80.81 80.72 80.870 Fuel Factor 1.15 1.13 1.12 Dry Molecular Weight, lb/lb-Mole 30.37 30.37 30.38 30.373 Wet Molecular weight, lb/lb-Mole 28.94 28.84 28.86 28.880 Flue Gas Static Pressure, inches of H2O 0.65 0.65 0.65 0.650 Absolute Flue Gas Pressure, inches of Mercury 30.05 30.05 30.05 30.050 Average Stack Gas Temperature, °F 127.31 127.94 127.94 127.730 Average Velocity Head, inches of H2O 0.6744858245 55520.674871077

672140.663306256

689921 0.671
Average Stack Gas Velocity, feet/second 48.47 48.59 48.16 48.407 Stack Cross-Sectional Area, square feet 615.752 615.752 615.752 615.752 Dry Volumetric Flow Rate, dry scfm 1,390,684.0 1,388,747.2 1,376,457.41,385,296.2 00 Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,790,730.01,795,163.4 1,779,277.01,788,390.1 33 Percent Isokinetic of Sampling Rate, % 95.8 103.0 103.0 100.600 Percent Excess Air, % 34.5 37.8 38.1 36.800 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Round Duct Diameter, inches 336 336 336 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 03, 2011 Page 17 of 19

### Santee Cooper-Cross Unit #4, ICR Section 114 Testing
7/28/2010
Location stk exhaust - Method 29 Average Run Number 1 2 3 Test Date 5/25/2010 5/25/2010 5/25/2010 Run Start Time 8:50:00 AM1:15:00 PM 5:40:00 PM Run Finish Time 12:35:00 PM5:00:00 PM 9:25:00 PM Net Traversing Points 16 16 16 Net Run Time, minutes 240 240 240 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 0.999 0.999 0.999 0.999 Barometric Pressure, inches of Mercury 30 30 30 30.000 Average Orifice Meter Differential, inches H2O 1.37 1.34 1.39 1.367 Dry Gas Meter Volume Sampled, cubic feet 160.750 159.560 162.367 160.892 Average Dry Gas Meter Temperature, °F 94.25 96.50 97.38 96.043 Dry Gas Meter Volume Sampled, dscf 153.908 152.139 154.590 153.546 Total Moisture Liquid collected, g 571.2 541.5 552.2 554.967 Volume of Water Vapor, standard cubic feet 26.89 25.49 25.99 26.123 Moisture Content of Stack Gas, % 14.87 14.35 14.39 14.537 Moisture Saturation at Stack Gas Temperature, % 14.20 13.97 13.99 14.053 Dry Mole Fraction 0.858 0.8603 0.8601 0.859 Carbon Dioxide, % 13.51 13.4 13.18 13.363 Oxygen, % 5.99 6.01 5.94 5.980 Carbon Monoxide & Nitrogen, % 80.5 80.59 80.88 80.657 Fuel Factor 1.10 1.11 1.14 Dry Molecular Weight, lb/lb-Mole 30.40 30.38 30.35 30.377 Wet Molecular weight, lb/lb-Mole 28.76 28.72 28.69 28.723 Flue Gas Static Pressure, inches of H2O 0.62 0.62 0.65 0.630 Absolute Flue Gas Pressure, inches of Mercury 30.05 30.05 30.05 30.050 Average Stack Gas Temperature, °F 127.88 127.25 127.31 127.480 Average Velocity Head, inches of H2O 0.6743674910 180120.659524920

6819630.681535391

884012 0.672
Average Stack Gas Velocity, feet/second 48.64 48.11 48.93 48.560 Stack Cross-Sectional Area, square feet 615.752 615.752 615.752 615.752 Dry Volumetric Flow Rate, dry scfm 1,390,804.4 1,380,817.1 1,403,882.21,391,834.5 67 Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,797,010.61,777,429.7 1,807,724.71,794,055.0 00 Percent Isokinetic of Sampling Rate, % 102.8 102.4 102.3 102.500 Percent Excess Air, % 39.2 39.4 38.5 39.033 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Round Duct Diameter, inches 336 336 336 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 03, 2011 Page 18 of 19

### Santee Cooper-Cross Unit #4, ICR Section 114 Testing
7/28/2010
Location stk exhaust - Method 5/OTM-28 Average Run Number 1 2 3 Test Date 5/25/2010 5/25/2010 5/25/2010 Run Start Time 8:50:00 AM1:15:00 PM 5:40:00 PM Run Finish Time 12:35:00 PM5:00:00 PM 9:25:00 PM Net Traversing Points 16 16 16 Net Run Time, minutes 240 240 240 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 0.9806 0.9806 0.9806 0.981 Barometric Pressure, inches of Mercury 30 30 30 30.000 Average Orifice Meter Differential, inches H2O 1.49 1.51 1.51 1.503 Dry Gas Meter Volume Sampled, cubic feet 164.780 166.530 166.335 165.882 Average Dry Gas Meter Temperature, °F 100.88 105.31 106.94 104.377 Dry Gas Meter Volume Sampled, dscf 153.075 153.495 152.875 153.148 Total Moisture Liquid collected, g 559.8 551.6 534.8 548.733 Volume of Water Vapor, standard cubic feet 26.35 25.96 25.17 25.827 Moisture Content of Stack Gas, % 14.69 14.47 14.14 14.433 Moisture Saturation at Stack Gas Temperature, % 14.35 13.97 14.01 14.110 Dry Mole Fraction 0.8565 0.8603 0.8599 0.859 Carbon Dioxide, % 13.51 13.4 13.18 13.363 Oxygen, % 5.99 6.01 5.94 5.980 Carbon Monoxide & Nitrogen, % 80.5 80.59 80.88 80.657 Fuel Factor 1.10 1.11 1.14 Dry Molecular Weight, lb/lb-Mole 30.40 30.38 30.35 30.377 Wet Molecular weight, lb/lb-Mole 28.68 28.74 28.64 28.687 Flue Gas Static Pressure, inches of H2O 0.62 0.65 0.62 0.630 Absolute Flue Gas Pressure, inches of Mercury 30.05 30.05 30.05 30.050 Average Stack Gas Temperature, °F 128.25 127.25 127.38 127.627 Average Velocity Head, inches of H2O 0.6674720863 779750.672057901

9428440.668068154

853594 0.669
Average Stack Gas Velocity, feet/second 48.47 48.54 48.49 48.500 Stack Cross-Sectional Area, square feet 615.752 615.752 615.752 615.752 Dry Volumetric Flow Rate, dry scfm 1,382,650.3 1,393,158.6 1,390,768.61,388,859.1 67 Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,790,730.01,793,316.1 1,791,468.91,791,838.3 33 Percent Isokinetic of Sampling Rate, % 102.9 102.4 102.1 102.467 Percent Excess Air, % 39.2 39.4 38.5 39.033 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Round Duct Diameter, inches 336 336 336 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 03, 2011 Page 19 of 19