### Name: Shawn Glacken

Title: Senior VP, Environmental Services Company: Luminant Sign Date: 7/6/2010 Name: Ned Shappley Title: QA Associate Company:METCO Environmental Sign Date: 7/1/2010 Permitted Facility Representative / Date Testing Company Representative / Date 

## Luminant Sandow 5B 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, January 20, 2011 Page 1 of 27

### Luminant Sandow 5B
7/6/2010 Facility Information: Sandow 5 Generating Plant 3708 Charles Martin Hall Rd.

Rockdale, TX TX76567 Contact:Craig Birkenfeld Phone:214-875-8326 Fax: 214-875-8333 Email: craigbirkenfeld@luminant.com Testing Company:
METCO Environmental 3226 Commander Blvd.

Carrollton TX75006 Contact:Ned Shappley Phone:972-931-7127 Fax: 972-931-8398 Email:nshappley@metcoenv.com

Air Permit Number: 48437 Permitted Source ID/Name: EPN SA-S5B TX Permitted Maximum Process Rate: 2960 MMBtu/hr Max. Normal Operation Process Rate: New unit. No previous year ope Target Process Test Rate

Description of the source (including control equipment). Please see the attachments for source or process flow diagram: Circulating fluidized bed (CFB) boiler with limestone injection for primary sulfur control, burning lignite coal. SNCR with aqueous ammonia for NOx control, followed by Activated Carbon Injection for mercury control, then dry Scrubber for SO2 control, then Baghouse for PM control. Industry/SCC/NAIS221112

Sampling Location Information:

Test Parameter Information: AFS #:4833100012 FRS #:110035206130

SCC / Description10100318 External Combustion Boilers - Electric Generation - Lignite - Atmospheric Fluidized Bed Combustion - Circulating Bed

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 192 122.833 128 4 0 12 0 0

Target Parameter Test Method Number of

Test Runs Test Run

Duration Sample

Points Comments Location Carbon Monoxide Method 10 3 2 0 Stack Total organic compounds

(TOC) as Propane Method 25A 3 2 0 Stack
Hydrogen Chloride Method 26A 3 3 0 Stack Hydrogen Fluoride Method 26A 3 3 0 Stack Total Particulate OTM - 27/28 3 4 0 Stack Filterable Particulate OTM - 27/28 3 4 0 Stack Total PM2.5 OTM - 27/28 3 4 0 Stack 

### Thursday, January 20, 2011 Page 2 of 27

### Luminant Sandow 5B
7/6/2010

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. Method 26A was modified to collect HCN with the HCL and HF.The concentration of the sodium hydroxide solution used was increased from 0.1 N to 1 N (or higher), an additional impinger containing sodium hydroxide was added to the train (three impingers instead of two), the pH of the impinger solutions was monitored periodically throughout the sample run. This modification was addressed on the Utility ICR website in the Frequently Asked Questions area (Question Test-025).

Filterable PM2.5 OTM - 27/28 3 4 0 Stack Inorganic (Aqueous)

Condensible Part. OTM - 27/28 3 4 0 Stack
Organic Condensible

Particulate OTM - 27/28 3 4 0 Stack
Beryllium Method 29 3 4 0 Stack Arsenic Method 29 3 4 0 Stack Filterable Particulate Method 29 3 4 0 Stack Cadmium Method 29 3 4 0 Stack Chromium Method 29 3 4 0 Stack Cobalt Method 29 3 4 0 Stack Lead Method 29 3 4 0 Stack Manganese Method 29 3 4 0 Stack Nickel Method 29 3 4 0 Stack Selenium Method 29 3 4 0 Stack Antimony Method 29 3 4 0 Stack Co2 Method 3A CO2 6 0 Stack O2 Method 3A O2 6 0 Stack Sulfur Dioxide Method 6C 3 3 0 Stack Nitrogen oxides (NOx) Method 7E 3 3 0 Stack



### Thursday, January 20, 2011 Page 3 of 27

### Luminant Sandow 5B
7/6/2010 Sampling / Stack Data Results Summary


### LocationStack - Method 10 Average Run Number 1 2 3 Test Date 3/9/2010 3/10/2010 3/11/2010 Run Start Time 5:02:00 PM1:01:00 PM12:34:00 PM Run Finish Time 7:27:00 PM3:21:00 PM 2:54:00 PM Carbon Dioxide, % 16.22 15.94 16.08 16.080 Oxygen, % 3.27 3.31 3.39 3.323 Dry Volumetric Flow Rate, dry scfm 579345 563279 580823 574,482.333 F-Factor, dscfm/MMBtu @ %O2 9860 9860 9860 9,860.000 Moisture, % 19.67 20.47 19.76 19.967 Fuel Type Coal - Lignite Coal -

Lignite Coal -

Lignite Fw 11950 11950 11950 11,950.000 Fc 1910 1910 1910 1,910.000



### LocationStack - Method 25A Average Run Number 1 2 3 Test Date 3/9/2010 3/10/2010 3/11/2010 Run Start Time 5:02:00 PM1:01:00 PM12:34:00 PM Run Finish Time 7:27:00 PM3:21:00 PM 2:54:00 PM Carbon Dioxide, % 16.22 15.94 16.08 16.080 Oxygen, % 3.27 3.31 3.39 3.323 Dry Volumetric Flow Rate, dry scfm 579345 563273 580823 574,480.333 F-Factor, dscfm/MMBtu @ %O2 9860 9860 9860 9,860.000 Moisture, % 19.67 20.47 19.76 19.967 Fuel Type Coal - Lignite Coal -

Lignite Coal -

Lignite Fw 11950 11950 11950 11,950.000 Fc 1910 1910 1910 1,910.000



### Thursday, January 20, 2011 Page 4 of 27

### Luminant Sandow 5B
7/6/2010
LocationStack - Method 26A Average Run Number 1 2 3 Test Date 3/9/2010 3/10/2010 3/11/2010 Run Start Time 5:00:00 PM1:05:00 PM12:20:00 PM Run Finish Time 8:15:00 PM4:40:00 PM 3:30:00 PM Net Run Time, minutes 180 180 180 Dry Gas Meter Volume Sampled, dscf 97.982 95.990 98.188 97.387 Moisture Content of Stack Gas, % 19.63 20.43 19.71 19.923 Moisture Saturation at Stack Gas Temperature, % 68.20 71.48 69.93 69.870 Carbon Dioxide, % 16.2 16.4 16.1 16.233 Oxygen, % 3.3 3.3 3.4 3.333 Average Stack Gas Temperature, °F 191.83 193.86 193.17 192.953 Dry Volumetric Flow Rate, dry scfm 578,367.0 561,789.4 579,585.9573,247.433 Actual Wet Volumetric Flue Gas Flow Rate, acfm 918,169.7 907,071.1 919,738.0914,992.933 Percent Isokinetic of Sampling Rate, % 96.1 96.9 96.1 96.367 F-Factor, dscfm/MMBtu @ %O2 9860 9860 9860 9,860.000 Fw 11950 11950 11950 11,950.000 Fc 1910 1910 1910 1,910.000



### LocationStack - Method 29 Average Run Number 1 2 3 Test Date 3/9/2010 3/10/2010 3/11/2010 Run Start Time 11:27:00 AM 8:10:00 AM 7:56:00 AM

Run Finish Time 4:07:00 PM 12:36:00 PM12:09:00 PM

Net Run Time, minutes 235 240 240 Dry Gas Meter Volume Sampled, dscf 119.855 124.943 127.461 124.086 Moisture Content of Stack Gas, % 19.11 19.51 18.71 19.110 Moisture Saturation at Stack Gas Temperature, % 69.69 68.39 65.86 67.980 Carbon Dioxide, % 16.3 16.3 16 16.200 Oxygen, % 3.2 3.6 3.5 3.433 Average Stack Gas Temperature, °F 192.91 191.96 190.58 191.817 Dry Volumetric Flow Rate, dry scfm 559,775.3 554,614.3 569,462.3 561,283.967 Actual Wet Volumetric Flue Gas Flow Rate, acfm 883,184.9 879,324.6 884,753.2882,420.900 Percent Isokinetic of Sampling Rate, % 95.0 97.9 97.3 96.733 F-Factor, dscfm/MMBtu @ %O2 9860 9860 9860 9,860.000 Fw 11950 11950 11950 11,950.000 Fc 1910 1910 1910 1,910.000



### Thursday, January 20, 2011 Page 5 of 27

### Luminant Sandow 5B
7/6/2010
LocationStack - Method 3A CO2 Average Run Number 1 2 3 Test Date 3/9/2010 3/10/2010 3/11/2010 Run Start Time 11:27:00 AM 8:10:00 AM 7:56:00 AM

Run Finish Time 8:16:00 PM4:04:00 PM 3:49:00 PM Carbon Dioxide, % 16.26 15.9 16.04 16.067 Oxygen, % 3.25 3.45 3.46 3.387 Dry Volumetric Flow Rate, dry scfm 593675 585810 585841 588,442.000 F-Factor, dscfm/MMBtu @ %O2 9860 9860 0 6,573.333 Moisture, % 19.01 19.48 18.62 19.037 Fuel Type Coal - Lignite Coal -

Lignite Fw 11950 11950 0 7,966.667 Fc 1910 1910 0 1,273.333



### LocationStack - Method 3A O2 Average Run Number 1 2 3 Test Date 3/9/2010 3/10/2010 3/11/2010 Run Start Time 11:27:00 AM 8:10:00 AM 7:56:00 AM

Run Finish Time 8:15:00 PM4:05:00 PM 3:49:00 PM Carbon Dioxide, % 16.26 15.9 16.04 16.067 Oxygen, % 3.25 3.45 3.46 3.387 Dry Volumetric Flow Rate, dry scfm 593675 585810 585841 588,442.000 F-Factor, dscfm/MMBtu @ %O2 9860 9860 9860 9,860.000 Moisture, % 19.01 19.48 18.62 19.037 Fuel Type Coal - Lignite Coal -

Lignite Coal -

Lignite Fw 11950 11950 11950 11,950.000 Fc 1910 1910 1910 1,910.000



### Thursday, January 20, 2011 Page 6 of 27

### Luminant Sandow 5B
7/6/2010
LocationStack - Method 6C Average Run Number 1 2 3 Test Date 3/9/2010 3/10/2010 3/11/2010 Run Start Time 5:02:00 PM1:01:00 PM12:34:00 PM Run Finish Time 7:27:00 PM3:21:00 PM 2:54:00 PM Carbon Dioxide, % 16.22 15.94 16.08 16.080 Oxygen, % 3.27 3.31 3.39 3.323 Dry Volumetric Flow Rate, dry scfm 579345 563279 580823 574,482.333 F-Factor, dscfm/MMBtu @ %O2 9860 9860 9860 9,860.000 Moisture, % 19.67 20.47 19.76 19.967 Fuel Type Coal - Lignite Coal -

Lignite Coal -

Lignite Fw 11950 11950 11950 11,950.000 Fc 1910 1910 1910 1,910.000



### LocationStack - Method 7E Average Run Number 1 2 3 Test Date 3/9/2010 3/10/2010 3/11/2010 Run Start Time 5:02:00 PM1:01:00 PM12:34:00 PM Run Finish Time 7:27:00 PM3:21:00 PM 2:54:00 PM Carbon Dioxide, % 16.08 15.94 16.08 16.033 Oxygen, % 3.39 3.31 3.39 3.363 Dry Volumetric Flow Rate, dry scfm 580823 563279 580823 574,975.000 F-Factor, dscfm/MMBtu @ %O2 9860 9860 9860 9,860.000 Moisture, % 19.76 20.47 19.76 19.997 Fuel Type Coal - Lignite Coal -

Lignite Coal -

Lignite Fw 11950 11950 11950 11,950.000 Fc 1910 1910 1910 1,910.000



### Thursday, January 20, 2011 Page 7 of 27

### Luminant Sandow 5B
7/6/2010
LocationStack - OTM - 27/28 Average Run Number 1 2 3 Test Date 3/9/2010 3/10/2010 3/11/2010 Run Start Time 11:27:00 AM 8:10:00 AM 7:56:00 AM

Run Finish Time 8:05:00 PM3:54:00 PM 3:48:00 PM Net Run Time, minutes 464.3 464.3 464.3 Dry Gas Meter Volume Sampled, dscf 122.159 124.634 127.391 124.728 Moisture Content of Stack Gas, % 18.97 19.45 18.58 19.000 Moisture Saturation at Stack Gas Temperature, % 56.37 58.21 58.15 57.577 Carbon Dioxide, % 16.3 16.3 16 16.200 Oxygen, % 3.3 3.5 3.5 3.433 Average Stack Gas Temperature, °F 183.08 184.40 184.70 184.060 Dry Volumetric Flow Rate, dry scfm 592,207.3 583,516.2 584,485.2586,736.233 Actual Wet Volumetric Flue Gas Flow Rate, acfm 919,014.2 915,636.3 900,918.6911,856.367 Percent Isokinetic of Sampling Rate, % 101.5 105.1 107.3 104.633 F-Factor, dscfm/MMBtu @ %O2 9860 9860 9860 9,860.000 Fw 11950 11950 11950 11,950.000 Fc 1910 1910 1910 1,910.000



### Thursday, January 20, 2011 Page 8 of 27

### Luminant Sandow 5B
7/6/2010 Emissions Summary


### Location: Stack - Method 10 Compound: Carbon Monoxide Average Run 1 2 3 Elb/hr 9.32E+00 9.38E+00 7.83E+00 8.843 lb/mmBtuO2 3.13E-03 3.25E-03 2.64E-03 0.003 ppm 3.69E+00 3.82E+00 3.09E+00 3.533 ppm@7%O2 2.91E+00 3.02E+00 2.45E+00 2.793



### Location: Stack - Method 25A Compound: Total organic compounds (TOC) as Average Run 1 2 3 Elb/hr 7.47E-01 8.89E-01 8.26E-01 0.821 lb/mmBtuO2 2.51E-04 3.08E-04 2.79E-04 0.000 ppm 1.88E-01 2.30E-01 2.07E-01 0.208 ppm@7%O2 1.48E-01 1.82E-01 1.64E-01 0.165



### Location: Stack - Method 26A Compound: Hydrogen Chloride Average RunNumber 1 2 3 Mass_mg 0.114 0.111 0.116 0.114 Elb/hr 8.90E-02 8.59E-02 9.06E-02 0.089 lb/mmBtuO2 3.00E-05 2.98E-05 3.07E-05 0.000 ppm 2.71E-02 2.69E-02 2.75E-02 0.027 

### Compound: Hydrogen Fluoride Average RunNumber 1 2 3 Mass_mg 0.168 0.164 0.171 0.168 Elb/hr 1.31E-01 1.27E-01 1.34E-01 0.131 lb/mmBtuO2 4.43E-05 4.41E-05 4.52E-05 0.000 ppm 7.28E-02 7.25E-02 7.39E-02 0.073



### Location: Stack - Method 29 Compound: Antimony Average RunNumber 1 2 3 Mass_mg 0.00688 0.0069 0.012 0.009 Elb/hr 4.25E-03 4.05E-03 7.09E-03 0.005 lb/mmBtuO2 1.47E-06 1.45E-06 2.46E-06 0.000 mg/dscm 2.03E-03 1.95E-03 3.33E-03 0.002 

### Compound: Arsenic Average RunNumber 1 2 3 Mass_mg 0.00142 0.00164 0.002 0.002 Elb/hr 8.77E-04 9.63E-04 1.18E-03 0.001 lb/mmBtuO2 3.04E-07 3.45E-07 4.10E-07 0.000


### Thursday, January 20, 2011 Page 9 of 27

### Luminant Sandow 5B
7/6/2010 mg/dscm 4.18E-04 4.64E-04 5.54E-04 0.000 

### Compound: Beryllium Average RunNumber 1 2 3 Mass_mg 0.001 0.001 0.001 0.001 Elb/hr 6.18E-04 5.87E-04 5.91E-04 0.001 lb/mmBtuO2 2.14E-07 2.10E-07 2.05E-07 0.000 mg/dscm 2.95E-04 2.83E-04 2.77E-04 0.000 

### Compound: Cadmium Average RunNumber 1 2 3 Mass_mg 0.00129 0.0011 0.00107 0.001 Elb/hr 7.97E-04 6.46E-04 6.32E-04 0.001 lb/mmBtuO2 2.76E-07 2.31E-07 2.19E-07 0.000 mg/dscm 3.80E-04 3.11E-04 2.97E-04 0.000 

### Compound: Chromium Average RunNumber 1 2 3 Mass_mg 0.00398 0.00108 0.00076 0.002 Elb/hr 2.46E-03 6.34E-04 4.49E-04 0.001 lb/mmBtuO2 8.52E-07 2.27E-07 1.56E-07 0.000 mg/dscm 1.17E-03 3.05E-04 2.11E-04 0.001 

### Compound: Cobalt Average RunNumber 1 2 3 Mass_mg 0.01 0.0215 0.0099 0.014 Elb/hr 6.18E-03 1.26E-02 5.85E-03 0.008 lb/mmBtuO2 2.14E-06 4.52E-06 2.03E-06 0.000 mg/dscm 2.95E-03 6.08E-03 2.74E-03 0.004 

### Compound: Filterable Particulate Average RunNumber 1 2 3 Mass_mg 4.4 5.8 1.7 3.967 Elb/hr 2.72E+00 3.41E+00 1.00E+00 2.377 lb/mmBtuO2 9.42E-04 1.22E-03 3.48E-04 0.001 mg/dscm 1.30E+00 1.64E+00 4.71E-01 1.137 

### Compound: Lead Average RunNumber 1 2 3 Mass_mg 0.00274 0.00261 0.00259 0.003 Elb/hr 1.69E-03 1.53E-03 1.53E-03 0.002 lb/mmBtuO2 5.87E-07 5.49E-07 5.31E-07 0.000 mg/dscm 8.07E-04 7.38E-04 7.18E-04 0.001 

### Compound: Manganese Average RunNumber 1 2 3 Mass_mg 0.00107 0.00109 0.00119 0.001


### Thursday, January 20, 2011 Page 10 of 27

### Luminant Sandow 5B
7/6/2010 Elb/hr 6.61E-04 6.40E-04 7.03E-04 0.001 lb/mmBtuO2 2.29E-07 2.29E-07 2.44E-07 0.000 mg/dscm 3.15E-04 3.08E-04 3.30E-04 0.000 

### Compound: Nickel Average RunNumber 1 2 3 Mass_mg 0.0025 0.00165 0.00072 0.002 Elb/hr 1.54E-03 9.69E-04 4.26E-04 0.001 lb/mmBtuO2 5.35E-07 3.47E-07 1.47E-07 0.000 mg/dscm 7.37E-04 4.66E-04 2.00E-04 0.000 

### Compound: Selenium Average RunNumber 1 2 3 Mass_mg 0.00062 0.0012 0.0012 0.001 Elb/hr 3.83E-04 7.05E-04 7.09E-04 0.001 lb/mmBtuO2 1.33E-07 2.52E-07 2.46E-07 0.000 mg/dscm 1.83E-04 3.39E-04 3.33E-04 0.000



### Location: Stack - Method 6C Compound: Sulfur Dioxide Average Run 1 2 3 Elb/hr 9.52E+01 1.68E+02 1.59E+02 140.733 lb/mmBtuO2 3.20E-02 5.83E-02 5.36E-02 0.048 ppm 1.65E+01 2.99E+01 2.74E+01 24.600 ppm@7%O2 1.30E+01 2.36E+01 2.18E+01 19.467



### Location: Stack - Method 7E Compound: Nitrogen oxides (NOx) Average Run 1 2 3 Elb/hr 2.29E+02 2.19E+02 2.32E+02 226.667 lb/mmBtuO2 7.74E-02 7.59E-02 7.85E-02 0.077 ppm 5.51E+01 5.43E+01 5.59E+01 55.100 ppm@7%O2 4.37E+01 4.29E+01 4.44E+01 43.667



### Location: Stack - OTM - 27/28 

### Compound: Filterable Particulate Average RunNumber 1 2 3 Mass_mg 1.9 4.1 10.5 5.500 Elb/hr 1.22E+00 2.54E+00 6.37E+00 3.377 gr/dscf 2.40E-04 5.08E-04 1.27E-03 0.001 lb/mmBtuO2 4.01E-04 8.59E-04 2.15E-03 0.001 

### Compound: Filterable PM2.5 Average RunNumber 1 2 3 Mass_mg 1.1 0.8 1.9 1.267 Elb/hr 7.05E-01 4.95E-01 1.15E+00 0.783



### Thursday, January 20, 2011 Page 11 of 27

### Luminant Sandow 5B
7/6/2010

Process Run Data gr/dscf 1.39E-04 9.91E-05 2.30E-04 0.000 lb/mmBtuO2 2.32E-04 1.68E-04 3.89E-04 0.000 

### Compound: Inorganic (Aqueous) Condensible Pa Average RunNumber 1 2 3 Mass_mg 2109.6 60 49.6 739.733 Elb/hr 1.35E+03 3.72E+01 3.01E+01 472.433 gr/dscf 2.67E-01 7.43E-03 6.01E-03 0.093 lb/mmBtuO2 4.46E-01 1.26E-02 1.02E-02 0.156 

### Compound: Organic Condensible Particulate Average RunNumber 1 2 3 Mass_mg 1.3 6.9 9 5.733 Elb/hr 8.34E-01 4.27E+00 5.46E+00 3.521 gr/dscf 1.64E-04 8.54E-04 1.09E-03 0.001 lb/mmBtuO2 2.75E-04 1.45E-03 1.84E-03 0.001 

### Compound: Total Particulate Average RunNumber 1 2 3 Mass_mg 2111.1 69.3 67.7 749.367 Elb/hr 1.35E+03 4.29E+01 4.11E+01 478.000 gr/dscf 2.67E-01 8.58E-03 8.20E-03 0.095 lb/mmBtuO2 4.46E-01 1.45E-02 1.39E-02 0.158 

### Compound: Total PM2.5 Average RunNumber 1 2 3 Mass_mg 2110.3 66 58.8 745.033 Elb/hr 1.35E+03 4.09E+01 3.57E+01 475.533 gr/dscf 2.67E-01 8.17E-03 7.12E-03 0.094 lb/mmBtuO2 4.46E-01 1.38E-02 1.21E-02 0.157



### Thursday, January 20, 2011 Page 12 of 27

### Luminant Sandow 5B
7/6/2010 Process Run Data



### Run Name Value UOM Comments Target Value 1 Unit Gross Electrical Output 580 Mwe 0


### 1 Standard Temperature 68 Deg F 0
1 Standard Pressure 29.92 " Hg 0
1 Flue Gas Pressure 28.98 "Hg collected by METCO Env. 0



### 1 Flue Gas Sampling Point Temperature 183 Deg F collected by METCO Env. 0

1 Flue Gas Moisture Content 19.01 % collected by METCO Env. 0

1 Flue Gas Carbon Dioxide Content 16.26 % collected by METCO Env. 0

1 Flue Gas Oxygen Content 3.25 % collected by METCO Env. 0

1 Flue Gas Flow Rate 593675 DSCFM collected by METCO Env. 0



### 1 Steam Output 19771000 lb steam/hr 0
1 Average Heat Input 2484 MMBtu/hr 0
1 Sorbent Type and Sorbent Injection Rate (if applicable) 58.7 lb/hr Activated Carbon 0



### 1 Lignite Burned 231 Tons/hr 0
2 Unit Gross Electrical Output 638 Mwe 0
2 Standard Temperature 68 Deg F 0


### 2 Standard Pressure 29.92 " Hg 0
2 Flue Gas Pressure 28.89 "Hg collected by METCO Env. 0



### 2 Flue Gas Sampling Point Temperature 184 Deg F collected by METCO Env. 0

2 Flue Gas Moisture Content 19.48 % collected by METCO Env. 0



### 2 Flue Gas Carbon Dioxide Content 15.9 % collected by METCO Env. 0

2 Flue Gas Oxygen Content 3.45 % collected by METCO Env. 0



### 2 Flue Gas Flow Rate 585810 DSCFM collected by METCO Env. 0

2 Steam Output 19901000 lb steam/hr 0


### 2 Average Heat Input 2487 MMBtu/hr 0
2 Sorbent Type and Sorbent Injection Rate (if applicable) 62 lb/hr Activated Carbon 0



### Thursday, January 20, 2011 Page 13 of 27

### Luminant Sandow 5B
7/6/2010

APCD Run Data 2 Lignite Burned 234 Tons/hr 0 

### 3 Unit Gross Electrical Output 633 Mwe 0 3 Standard Temperature 68 Deg F 0 3 Standard Pressure 29.92 " Hg 0 

### 3 Flue Gas Pressure 29.11 "Hg collected by METCO Env. 0

3 Flue Gas Sampling Point Temperature 185 Deg F collected by METCO Env. 0



### 3 Flue Gas Moisture Content 18.62 % collected by METCO Env. 0

3 Flue Gas Carbon Dioxide Content 16.04 % collected by METCO Env. 0



### 3 Flue Gas Oxygen Content 3.46 % collected by METCO Env. 0

3 Flue Gas Flow Rate 585841 DSCFM collected by METCO Env. 0

3 Steam Output 19901000 lb steam/hr 0 3 Average Heat Input 2480 MMBtu/hr 0 

### 3 Sorbent Type and Sorbent Injection Rate (if applicable) 63 lb/hr Brominated Carbon 0

3 Lignite Burned 233 Tons/hr 0
1 Unit Net Electric Output 0 MW 0

Run Name Value UOM Comments Target Value 1 DRY LIMESTONE INJECTION 30.7 TPH 0
2 DRY LIMESTONE INJECTION 28.2 TPH 0 

### 3 DRY LIMESTONE INJECTION 27.6 TPH 0
1 SELECTIVE NONCATALYTIC REDUCTION FOR NOX 771 PPH 0



### 2 SELECTIVE NONCATALYTIC REDUCTION FOR NOX 807 PPH 0

3 SELECTIVE NONCATALYTIC REDUCTION FOR NOX 782 PPH 0



### 1 ACTIVATED CARBON ADSORPTION 58.7 PPH 0
2 ACTIVATED CARBON ADSORPTION 62 PPH 0 3 ACTIVATED CARBON ADSORPTION 63 PPH 0


### 1 DRY SORBENT INJECTION 1038 PPH 0
2 DRY SORBENT INJECTION 1038 PPH 0 3 DRY SORBENT INJECTION 1038 PPH 0



### Thursday, January 20, 2011 Page 14 of 27

### Luminant Sandow 5B
7/6/2010

Process Lab Run Data 1 DRY SCRUBBER 3.7 " H2O 0


### 2 DRY SCRUBBER 3.5 " H2O 0 3 DRY SCRUBBER 3.3 " H2O 0
1 BAGHOUSE 6 " H2O 0


### 1 0 0

Run Name ValueUOM Comments 2 Fuel Heating Value 6121 Btu/lb 2 Fuel Moisture 28.47 % 

### 2 Fuel Ash Content 23.25 % 2 Ultimate Analysis - Volatile Matter 28.07 % 2 Ultimate Analysis - Fuel Fixed Carbon 20.21 % 

### 2 Ultimate Analysis - Fuel Carbon 34.81 % 2 Ultimate Analysis - Fuel Sulfur 1.32 % 2 Ultimate Analysis - Fuel Hydrogen 2.93 % 2 Ultimate Analysis - Fuel Nitrogen 0.69 % 

### 2 Ultimate Analysis - Fuel Oxygen 8.53 % 2 Fuel Antimony Content 3 ppm 2 Fuel Arsenic Content 8 ppm 

### 2 Fuel Beryllium Content 1.6 ppm 2 Fuel Cadmium Content 0.5 ppm 2 Fuel Chromium Content 33 ppm 2 Fuel Cobalt Content 6 ppm 

### 2 Fue Lead Content 16 ppm 2 Fuel Manganese Content 116 ppm 2 Fuel Nickel Content 20 ppm 

### 2 Fuel Mercury Content 0.33 ppm 2 Fuel Selenium Content 9 ppm 2 Fuel Chlorine Content 57 ppm 2 Fuel Fluorine Content 120 ppm 

### 3 Fuel Heating Value 5828 Btu/lb 3 Fuel Moisture 31.18 % 3 Fuel Ash Content 23.24 % 

### 3 Ultimate Analysis - Volatile Matter 26.28 % 3 Ultimate Analysis - Fuel Fixed Carbon 19.3 % 3 Ultimate Analysis - Fuel Carbon 33 % 3 Ultimate Analysis - Fuel Sulfur 1.41 % 

### 3 Ultimate Analysis - Fuel Hydrogen 2.74 % 3 Ultimate Analysis - Fuel Nitrogen 0.64 % 3 Ultimate Analysis - Fuel Oxygen 7.79 %



### Thursday, January 20, 2011 Page 15 of 27

### Luminant Sandow 5B
7/6/2010 3 Fuel Antimony Content 3 ppm 

### 3 Fuel Arsenic Content 2 ppm 3 Fuel Beryllium Content 1.4 ppm 3 Fuel Cadmium Content 0.5 ppm 3 Fuel Chromium Content 34 ppm 

### 3 Fuel Cobalt Content 7 ppm 3 Fue Lead Content 16 ppm 3 Fuel Manganese Content 200 ppm 

### 3 Fuel Nickel Content 21 ppm 3 Fuel Mercury Content 0.21 ppm 3 Fuel Selenium Content 8 ppm 3 Fuel Chlorine Content 75 ppm 

### 3 Fuel Fluorine Content 130 ppm 4 Fuel Heating Value 5852 Btu/lb 4 Fuel Moisture 31 % 

### 4 Fuel Ash Content 23.09 % 4 Ultimate Analysis - Volatile Matter 26.47 % 4 Ultimate Analysis - Fuel Fixed Carbon 19.44 % 4 Ultimate Analysis - Fuel Carbon 33.13 % 

### 4 Ultimate Analysis - Fuel Sulfur 1.28 % 4 Ultimate Analysis - Fuel Hydrogen 2.7 % 4 Ultimate Analysis - Fuel Nitrogen 0.64 % 

### 4 Ultimate Analysis - Fuel Oxygen 8.16 % 4 Fuel Antimony Content 3 ppm 4 Fuel Arsenic Content 2 ppm 4 Fuel Beryllium Content 1.6 ppm 

### 4 Fuel Cadmium Content 0.5 ppm 4 Fuel Chromium Content 32 ppm 4 Fuel Cobalt Content 7 ppm 

### 4 Fue Lead Content 16 ppm 4 Fuel Manganese Content 182 ppm 4 Fuel Nickel Content 20 ppm 4 Fuel Mercury Content 0.26 ppm 

### 4 Fuel Selenium Content 8 ppm 4 Fuel Chlorine Content 92 ppm 4 Fuel Fluorine Content 130 ppm 

### 5 Fuel Heating Value 0 Btu/lb 5 Fuel Moisture 0 % 5 Fuel Ash Content 0 % 5 Ultimate Analysis - Volatile Matter 0 % 

### 5 Ultimate Analysis - Fuel Fixed Carbon 0 % 5 Ultimate Analysis - Fuel Carbon 0 % 5 Ultimate Analysis - Fuel Sulfur 0 %



### Thursday, January 20, 2011 Page 16 of 27

### Luminant Sandow 5B
7/6/2010 5 Ultimate Analysis - Fuel Hydrogen 0 % 

### 5 Ultimate Analysis - Fuel Nitrogen 0 % 5 Ultimate Analysis - Fuel Oxygen 0 % 5 Fuel Antimony Content 0 ppm 5 Fuel Arsenic Content 0 ppm 

### 5 Fuel Beryllium Content 0 ppm 5 Fuel Cadmium Content 0 ppm 5 Fuel Chromium Content 0 ppm 

### 5 Fuel Cobalt Content 0 ppm 5 Fue Lead Content 0 ppm 5 Fuel Manganese Content 0 ppm 5 Fuel Nickel Content 0 ppm 

### 5 Fuel Mercury Content 0 ppm 5 Fuel Selenium Content 0 ppm 5 Fuel Chlorine Content 0 ppm 

### 5 Fuel Fluorine Content 0 ppm

Thursday, January 20, 2011 Page 17 of 27

### Luminant Sandow 5B
7/6/2010 Sampling / Stack Data Results Detail


### LocationStack - Method 10 Average Run Number 1 2 3 Test Date 3/9/2010 3/10/2010 3/11/2010 Run Start Time 5:02:00 PM1:01:00 PM12:34:00 PM Run Finish Time 7:27:00 PM3:21:00 PM 2:54:00 PM Carbon Dioxide, % 16.22 15.94 16.08 16.080 Oxygen, % 3.27 3.31 3.39 3.323 Fuel Factor 1.09 1.1 1.09 Dry Volumetric Flow Rate, dry scfm 579345 563279 580823574,482.333 F-Factor, dscfm/MMBtu @ %O2 9860 9860 98609,860.000 Moisture, % 19.67 20.47 19.76 19.967 Analyzer Make Thermo Environmental Thermo

Environment

al Thermo Environmenta

l Analyzer Model 48C 48C 48C Analyzer Serial Number 5030110324 503010324 5030103242,012,043,6 57.333 Operating Range 100 100 100 100.000 Operating Units ppm ppm ppm No. Readings/Avg. 480 480 480 480.000 Calibration Set 16 17 18 17.000 Calibration Pre Zero Cylinder ID N2- ALM012339 N2-

ALM012339 N2-

ALM012339 Calibration Pre Zero Cylinder Instrument Response 0 0.1 0.1 0.067 Calibration Pre Zero Cylinder Bias 0 0.09 0.1 0.063 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CO- ALM 009208 CO- ALM

009208 CO- ALM

009208 Calibration Pre High Cylinder Instrument Response 40.42 40.57 40.71 40.567 Calibration Pre High Cylinder Bias -1.14 -1.29 -0.74 -1.057 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID N2- ALM012339 N2-

ALM012339 N2-

ALM012339 Calibration Post Zero Cylinder Instrument Response 0.02 0.1 0.1 0.073 Calibration Post Zero Cylinder Bias 0.02 0.09 0.1 0.070 Calibration Post Zero Cylinder Drift 0.02 0 0 0.007 Calibration Post High Cylinder ID CO- ALM 009208 CO- ALM

009208 CO- ALM

009208 Calibration Post High Cylinder Instrument Response 40.58 40.71 40.81 40.700 Calibration Post High Cylinder Bias -0.97 -1.15 -0.64 -0.920 Calibration Post High Cylinder Drift 0.17 0.14 0.1 0.137 Cavg 3.6 3.82 3.12 3.513 Cavg Units ppmvd ppmvd ppmvd Cgas 3.6884 3.8173 3.0898 3.532 Cgas Units ppmvd ppmvd ppmvd Fuel Type Coal - Lignite Coal - LigniteCoal - Lignite

Fw 11950 11950 1195011,950.000 Fc 1910 1910 1910 1,910.000 Cgasw 0 0 0 0.000


### Thursday, January 20, 2011 Page 18 of 27

### Luminant Sandow 5B
7/6/2010 Cgasw Units



### Thursday, January 20, 2011 Page 19 of 27

### Luminant Sandow 5B
7/6/2010
LocationStack - Method 25A Average Run Number 1 2 3 Test Date 3/9/2010 3/10/2010 3/11/2010 Run Start Time 5:02:00 PM1:01:00 PM12:34:00 PM Run Finish Time 7:27:00 PM3:21:00 PM 2:54:00 PM Carbon Dioxide, % 16.22 15.94 16.08 16.080 Oxygen, % 3.27 3.31 3.39 3.323 Fuel Factor 1.09 1.1 1.09 Dry Volumetric Flow Rate, dry scfm 579345 563273 580823574,480.333 F-Factor, dscfm/MMBtu @ %O2 9860 9860 98609,860.000 Moisture, % 19.67 20.47 19.76 19.967 Analyzer Make Thermo Environmental Thermo

Environment

al Thermo Environmenta

l Analyzer Model 55I 55I 55I Analyzer Serial Number 431PTR07 431PTR07 431PTR07 Operating Range 100 100 100 100.000 Operating Units ppm ppm ppm No. Readings/Avg. 480 480 480 480.000 Calibration Set 13 14 15 14.000 Calibration Pre Zero Cylinder ID N2- ALM012339 N2-

ALM012339 N2-

ALM012339 Calibration Pre Zero Cylinder Instrument Response 0.07 0 0 0.023 Calibration Pre Zero Cylinder Bias 0.07 -0.02 0 0.017 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID THC- ALM 021281THC- ALM

021281 THC- ALM

021281 Calibration Pre High Cylinder Instrument Response 50.9 51.98 51.12 51.333 Calibration Pre High Cylinder Bias 0.09 -0.32 0.04 -0.063 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID N2- ALM012339 N2-

ALM012339 N2-

ALM012339 Calibration Post Zero Cylinder Instrument Response 0.13 0 0.13 0.087 Calibration Post Zero Cylinder Bias 0.13 -0.02 0.13 0.080 Calibration Post Zero Cylinder Drift 0.06 0 0.13 0.063 Calibration Post High Cylinder ID THC- ALM 021281THC- ALM

021281 THC- ALM

021281 Calibration Post High Cylinder Instrument Response 52.05 49.81 48.55 50.137 Calibration Post High Cylinder Bias 1.24 -2.49 -2.53 -1.260 Calibration Post High Cylinder Drift 1.15 2.17 2.57 1.963 Cavg 150 180 160 163.333 Cavg Units ppbvw ppbvw ppbvw Cgas 187.7857 229.9095 207.0501 208.248 Cgas Units ppbvd ppbvd ppbvd Fuel Type Coal - Lignite Coal - LigniteCoal - Lignite

Fw 11950 11950 1195011,950.000 Fc 1910 1910 1910 1,910.000 Cgasw 150.84827250 6083182.8470380

19452166.1370202

93349 166.611
Cgasw Units ppbvw ppbvw ppbvw



### Thursday, January 20, 2011 Page 20 of 27

### Luminant Sandow 5B
7/6/2010
LocationStack - Method 26A Average Run Number 1 2 3 Test Date 3/9/2010 3/10/2010 3/11/2010 Run Start Time 5:00:00 PM1:05:00 PM12:20:00 PM Run Finish Time 8:15:00 PM4:40:00 PM 3:30:00 PM Net Traversing Points 37 37 37 Net Run Time, minutes 180 180 180 Nozzle Diameter, inches 0.19 0.19 0.19 0.190 Pitot Tube Coefficient 0.801 0.801 0.801 0.801 Dry Gas Meter Calibration Factor 0.986 0.986 0.986 0.986 Barometric Pressure, inches of Mercury 29.04 28.93 29.14 29.037 Average Orifice Meter Differential, inches H2O 0.96 0.94 0.98 0.960 Dry Gas Meter Volume Sampled, cubic feet 106.346 104.048 105.243 105.212 Average Dry Gas Meter Temperature, °F 89.76 86.94 84.81 87.170 Dry Gas Meter Volume Sampled, dscf 97.982 95.990 98.188 97.387 Total Moisture Liquid collected, g 508.3 523.4 512.1 514.600 Volume of Water Vapor, standard cubic feet 23.93 24.64 24.10 24.223 Moisture Content of Stack Gas, % 19.63 20.43 19.71 19.923 Moisture Saturation at Stack Gas Temperature, % 68.20 71.48 69.93 69.870 Dry Mole Fraction 0.8037 0.7957 0.8029 0.801 Carbon Dioxide, % 16.2 16.4 16.1 16.233 Oxygen, % 3.3 3.3 3.4 3.333 Carbon Monoxide & Nitrogen, % 80.5 80.3 80.5 80.433 Fuel Factor 1.09 1.07 1.09 Dry Molecular Weight, lb/lb-Mole 30.72 30.76 30.71 30.730 Wet Molecular weight, lb/lb-Mole 28.22 28.15 28.20 28.190 Flue Gas Static Pressure, inches of H2O -1.2 -1.2 -1.2 -1.200 Absolute Flue Gas Pressure, inches of Mercury 28.95 28.84 29.05 28.947 Average Stack Gas Temperature, °F 191.83 193.86 193.17 192.953 Average Velocity Head, inches of H2O 1.5482283936 63721.496983357

055391.554812258

69683 1.533
Average Stack Gas Velocity, feet/second 76.11 75.19 76.24 75.847 Stack Cross-Sectional Area, square feet 201.062 201.062 201.062 201.062 Dry Volumetric Flow Rate, dry scfm 578,367.0 561,789.4 579,585.9573,247.433 Actual Wet Volumetric Flue Gas Flow Rate, acfm 918,169.7 907,071.1 919,738.0914,992.933 Percent Isokinetic of Sampling Rate, % 96.1 96.9 96.1 96.367 Percent Excess Air, % 18.4 18.4 19.0 18.600 F-Factor, dscfm/MMBtu @ %O2 9860 9860 98609,860.000 Round Duct Diameter, inches 192 192 192 Rectangular Duct Width, inches 0 0 0 Rectangular Duct Length, inches 0 0 0 Fw 11950 11950 1195011,950.000 Fc 1910 1910 1910 1,910.000



### Thursday, January 20, 2011 Page 21 of 27

### Luminant Sandow 5B
7/6/2010
LocationStack - Method 29 Average Run Number 1 2 3 Test Date 3/9/2010 3/10/2010 3/11/2010 Run Start Time 11:27:00 AM8:10:00 AM 7:56:00 AM Run Finish Time 4:07:00 PM12:36:00 PM12:09:00 PM Net Traversing Points 48 49 49 Net Run Time, minutes 235 240 240 Nozzle Diameter, inches 0.188 0.188 0.188 0.188 Pitot Tube Coefficient 0.8 0.8 0.8 0.800 Dry Gas Meter Calibration Factor 0.986 0.986 0.986 0.986 Barometric Pressure, inches of Mercury 29.08 29.04 29.28 29.133 Average Orifice Meter Differential, inches H2O 0.90 0.89 0.91 0.900 Dry Gas Meter Volume Sampled, cubic feet 130.995 132.595 132.973 132.188 Average Dry Gas Meter Temperature, °F 94.28 77.45 72.72 81.483 Dry Gas Meter Volume Sampled, dscf 119.855 124.943 127.461 124.086 Total Moisture Liquid collected, g 601.6 643.6 623.2 622.800 Volume of Water Vapor, standard cubic feet 28.32 30.29 29.33 29.313 Moisture Content of Stack Gas, % 19.11 19.51 18.71 19.110 Moisture Saturation at Stack Gas Temperature, % 69.69 68.39 65.86 67.980 Dry Mole Fraction 0.8089 0.8049 0.8129 0.809 Carbon Dioxide, % 16.3 16.3 16 16.200 Oxygen, % 3.2 3.6 3.5 3.433 Carbon Monoxide & Nitrogen, % 80.5 80.1 80.5 80.367 Fuel Factor 1.09 1.06 1.09 Dry Molecular Weight, lb/lb-Mole 30.74 30.75 30.70 30.730 Wet Molecular weight, lb/lb-Mole 28.31 28.26 28.32 28.297 Flue Gas Static Pressure, inches of H2O -1.2 -1.2 -1.2 -1.200 Absolute Flue Gas Pressure, inches of Mercury 28.99 28.95 29.19 29.043 Average Stack Gas Temperature, °F 192.91 191.96 190.58 191.817 Average Velocity Head, inches of H2O 1.4401530937 43221.425347104

645771.461068365

07272 1.442
Average Stack Gas Velocity, feet/second 73.21 72.89 73.34 73.147 Stack Cross-Sectional Area, square feet 201.062 201.062 201.062 201.062 Dry Volumetric Flow Rate, dry scfm 559,775.3 554,614.3 569,462.3561,283.967 Actual Wet Volumetric Flue Gas Flow Rate, acfm 883,184.9 879,324.6 884,753.2882,420.900 Percent Isokinetic of Sampling Rate, % 95.0 97.9 97.3 96.733 Percent Excess Air, % 17.7 20.5 19.7 19.300 F-Factor, dscfm/MMBtu @ %O2 9860 9860 98609,860.000 Round Duct Diameter, inches 192 192 192 Rectangular Duct Width, inches 0 0 0 Rectangular Duct Length, inches 0 0 0 Fw 11950 11950 1195011,950.000 Fc 1910 1910 1910 1,910.000



### Thursday, January 20, 2011 Page 22 of 27

### Luminant Sandow 5B
7/6/2010
LocationStack - Method 3A CO2 Average Run Number 1 2 3 Test Date 3/9/2010 3/10/2010 3/11/2010 Run Start Time 11:27:00 AM8:10:00 AM 7:56:00 AM Run Finish Time 8:16:00 PM4:04:00 PM 3:49:00 PM Carbon Dioxide, % 16.26 15.9 16.04 16.067 Oxygen, % 3.25 3.45 3.46 3.387 Fuel Factor 1.09 1.1 1.09 Dry Volumetric Flow Rate, dry scfm 593675 585810 585841588,442.000 F-Factor, dscfm/MMBtu @ %O2 9860 9860 06,573.333 Moisture, % 19.01 19.48 18.62 19.037 Analyzer Make Horiba Horiba Horiba Analyzer Model VA-3000 VA-3000 VA-3000 Analyzer Serial Number 802432001 802432001 802432001802,432,001 .000 Operating Range 25 25 25 25.000 Operating Units % ppm % No. Readings/Avg. 1680 1680 1680 1,680.000 Calibration Set 1 2 3 2.000 Calibration Pre Zero Cylinder ID N2- ALM012339 N2-

ALM012339 N2-

ALM012339 Calibration Pre Zero Cylinder Instrument Response 0 0.11 0.2 0.103 Calibration Pre Zero Cylinder Bias 0.05 0.55 1.01 0.537 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CO2 - AAL 5513CO2- ALM

30462 CO2- ALM

30462 Calibration Pre High Cylinder Instrument Response 11.99 11.84 11.5 11.777 Calibration Pre High Cylinder Bias -0.25 -0.8 -0.85 -0.633 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID N2- ALM012339 N2-

ALM012339 N2-

ALM012339 Calibration Post Zero Cylinder Instrument Response 0.06 0.25 0.04 0.117 Calibration Post Zero Cylinder Bias 0.35 1.26 0.2 0.603 Calibration Post Zero Cylinder Drift 0.3 0.71 0.81 0.607 Calibration Post High Cylinder ID CO2 - AAL 5513CO2- ALM

30462 CO2- ALM

30462 Calibration Post High Cylinder Instrument Response 11.88 11.88 11.65 11.803 Calibration Post High Cylinder Bias -0.8 -0.6 -0.1 -0.500 Calibration Post High Cylinder Drift 0.55 0.2 0.75 0.500 Cavg 16.17 16.05 15.83 16.017 Cavg Units %vd %vd %vd Cgas 16.2688 15.8972 16.046 16.071 Cgas Units %vd %vd %vd Fuel Type Coal - Lignite Coal - Lignite Fw 11950 11950 07,966.667 Fc 1910 1910 0 1,273.333 Cgasw 0 0 0 0.000 Cgasw Units



### Thursday, January 20, 2011 Page 23 of 27

### Luminant Sandow 5B
7/6/2010
LocationStack - Method 3A O2 Average Run Number 1 2 3 Test Date 3/9/2010 3/10/2010 3/11/2010 Run Start Time 11:27:00 AM8:10:00 AM 7:56:00 AM Run Finish Time 8:15:00 PM4:05:00 PM 3:49:00 PM Carbon Dioxide, % 16.26 15.9 16.04 16.067 Oxygen, % 3.25 3.45 3.46 3.387 Fuel Factor 1.09 1.1 1.09 Dry Volumetric Flow Rate, dry scfm 593675 585810 585841588,442.000 F-Factor, dscfm/MMBtu @ %O2 9860 9860 98609,860.000 Moisture, % 19.01 19.48 18.62 19.037 Analyzer Make Horiba Horiba Horiba Analyzer Model VA-3000 VA-3000 VA-3000 Analyzer Serial Number 802432001 802432001 802432001802,432,001 .000 Operating Range 25 25 25 25.000 Operating Units % % % No. Readings/Avg. 1680 1680 1680 1,680.000 Calibration Set 4 5 6 5.000 Calibration Pre Zero Cylinder ID N2- ALM012339 N2-

ALM012339 N2-

ALM012339 Calibration Pre Zero Cylinder Instrument Response 0.13 0.13 0.11 0.123 Calibration Pre Zero Cylinder Bias 0.67 0.67 0.57 0.637 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID O2 - AAL 5513 O2-ALM

30462 O2-ALM

30462 Calibration Pre High Cylinder Instrument Response 11.95 11.93 11.59 11.823 Calibration Pre High Cylinder Bias 0.29 0.19 0.14 0.207 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID N2- ALM012339 N2-

ALM012339 N2-

ALM012339 Calibration Post Zero Cylinder Instrument Response 0.08 0.09 -0.01 0.053 Calibration Post Zero Cylinder Bias 0.43 0.48 0 0.303 Calibration Post Zero Cylinder Drift 0.24 0.19 0.57 0.333 Calibration Post High Cylinder ID O2 - AAL 5513 O2-ALM

30462 O2-ALM

30462 Calibration Post High Cylinder Instrument Response 11.88 11.71 11.63 11.740 Calibration Post High Cylinder Bias -0.05 -0.86 0.33 -0.193 Calibration Post High Cylinder Drift 0.34 1.05 0.19 0.527 Cavg 3.34 3.53 3.44 3.437 Cavg Units %vd %vd %vd Cgas 3.2597 3.4463 3.4604 3.389 Cgas Units %vd %vd %vd Fuel Type Coal - Lignite Coal - LigniteCoal - Lignite

Fw 11950 11950 1195011,950.000 Fc 1910 1910 1910 1,910.000 Cgasw 0 0 0 0.000 Cgasw Units



### Thursday, January 20, 2011 Page 24 of 27

### Luminant Sandow 5B
7/6/2010
LocationStack - Method 6C Average Run Number 1 2 3 Test Date 3/9/2010 3/10/2010 3/11/2010 Run Start Time 5:02:00 PM1:01:00 PM12:34:00 PM Run Finish Time 7:27:00 PM3:21:00 PM 2:54:00 PM Carbon Dioxide, % 16.22 15.94 16.08 16.080 Oxygen, % 3.27 3.31 3.39 3.323 Fuel Factor 1.09 1.1 1.09 Dry Volumetric Flow Rate, dry scfm 579345 563279 580823574,482.333 F-Factor, dscfm/MMBtu @ %O2 9860 9860 98609,860.000 Moisture, % 19.67 20.47 19.76 19.967 Analyzer Make Western Research Wetern

Research Wetern

Research Analyzer Model 721AT 721AT 721AT Analyzer Serial Number AX-321-9603- 1 AX-921- 9603-1 AX-921-

9603-1 Operating Range 100 100 100 100.000 Operating Units ppm ppm ppm No. Readings/Avg. 480 480 480 480.000 Calibration Set 7 8 9 8.000 Calibration Pre Zero Cylinder ID N2- ALM012339 N2-

ALM012339 N2-

ALM012339 Calibration Pre Zero Cylinder Instrument Response 1.48 2.03 0 1.170 Calibration Pre Zero Cylinder Bias 1.37 2.05 -0.12 1.100 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID SO2-ALM 035731 SO2-ALM

035731 SO2-ALM

035731 Calibration Pre High Cylinder Instrument Response 42.7 43.05 44.58 43.443 Calibration Pre High Cylinder Bias -2.15 -1.92 -0.53 -1.533 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID N2- ALM012339 N2-

ALM012339 N2-

ALM012339 Calibration Post Zero Cylinder Instrument Response 1.49 1 2.58 1.690 Calibration Post Zero Cylinder Bias 1.38 0.96 2.62 1.653 Calibration Post Zero Cylinder Drift 9.9999999999 9979E-03 1.09 2.74 1.280
Calibration Post High Cylinder ID SO2-ALM 035731 SO2-ALM

035731 SO2-ALM

035731 Calibration Post High Cylinder Instrument Response 41.75 44.62 45.77 44.047 Calibration Post High Cylinder Bias -3.16 -0.26 0.73 -0.897 Calibration Post High Cylinder Drift 1.01 1.66 1.26 1.310 Cavg 16.43 29.73 28.08 24.747 Cavg Units ppmvd ppmvd ppmvd Cgas 16.471 29.9351 27.4096 24.605 Cgas Units ppmvd ppmvd ppmvd Fuel Type Coal - Lignite Coal - LigniteCoal - Lignite

Fw 11950 11950 1195011,950.000 Fc 1910 1910 1910 1,910.000 Cgasw 0 0 0 0.000 Cgasw Units



### Thursday, January 20, 2011 Page 25 of 27

### Luminant Sandow 5B
7/6/2010
LocationStack - Method 7E Average Run Number 1 2 3 Test Date 3/9/2010 3/10/2010 3/11/2010 Run Start Time 5:02:00 PM1:01:00 PM12:34:00 PM Run Finish Time 7:27:00 PM3:21:00 PM 2:54:00 PM Carbon Dioxide, % 16.08 15.94 16.08 16.033 Oxygen, % 3.39 3.31 3.39 3.363 Fuel Factor 1.09 1.1 1.09 Dry Volumetric Flow Rate, dry scfm 580823 563279 580823574,975.000 F-Factor, dscfm/MMBtu @ %O2 9860 9860 98609,860.000 Moisture, % 19.76 20.47 19.76 19.997 Analyzer Make Thermo Environmental Thermo

Environment

al Thermo Environmenta

l Analyzer Model 42C 42C 42C Analyzer Serial Number 61871291 618717291 618717291433,101,957 .667 Operating Range 100 100 100 100.000 Operating Units ppm ppm ppm No. Readings/Avg. 480 480 480 480.000 Calibration Set 10 11 12 11.000 Calibration Pre Zero Cylinder ID N2- ALM012339 N2-

ALM012339 N2-

ALM012339 Calibration Pre Zero Cylinder Instrument Response 0.37 0.34 0.5 0.403 Calibration Pre Zero Cylinder Bias -0.18 0.04 0.33 0.063 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID NO -ALM 037950 NO -ALM

037950 NO -ALM

037950 Calibration Pre High Cylinder Instrument Response 44.3 45.28 45.11 44.897 Calibration Pre High Cylinder Bias -0.75 -0.73 -0.83 -0.770 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID N2- ALM012339 N2-

ALM012339 N2-

ALM012339 Calibration Post Zero Cylinder Instrument Response 0.3 0.29 0.36 0.317 Calibration Post Zero Cylinder Bias -0.26 -0.01 0.18 -0.030 Calibration Post Zero Cylinder Drift 0.08 0.05 0.15 0.093 Calibration Post High Cylinder ID NO -ALM 037950 NO -ALM

037950 NO -ALM

037950 Calibration Post High Cylinder Instrument Response 45.38 44.91 45.33 45.207 Calibration Post High Cylinder Bias 0.41 -1.13 -0.59 -0.437 Calibration Post High Cylinder Drift 1.16 0.4 0.24 0.600 Cavg 54.59 54.1 55.78 54.823 Cavg Units ppmvd ppmvd ppmvd Cgas 55.1023 54.2895 55.8567 55.083 Cgas Units ppmvd ppmvd ppmvd Fuel Type Coal - Lignite Coal - LigniteCoal - Lignite

Fw 11950 11950 1195011,950.000 Fc 1910 1910 1910 1,910.000 Cgasw 0 0 0 0.000 Cgasw Units



### Thursday, January 20, 2011 Page 26 of 27

### Luminant Sandow 5B
7/6/2010
LocationStack - OTM - 27/28 Average Run Number 1 2 3 Test Date 3/9/2010 3/10/2010 3/11/2010 Run Start Time 11:27:00 AM8:10:00 AM 7:56:00 AM Run Finish Time 8:05:00 PM3:54:00 PM 3:48:00 PM Net Traversing Points 54 54 54 Net Run Time, minutes 464.3 464.3 464.3 Nozzle Diameter, inches 0.127 0.127 0.127 0.127 Pitot Tube Coefficient 0.805 0.805 0.805 0.805 Dry Gas Meter Calibration Factor 0.994 0.994 0.994 0.994 Barometric Pressure, inches of Mercury 29.07 28.98 29.2 29.083 Average Orifice Meter Differential, inches H2O 0.20 0.20 0.20 0.200 Dry Gas Meter Volume Sampled, cubic feet 128.581 129.260 131.321 129.721 Average Dry Gas Meter Temperature, °F 77.00 67.48 68.27 70.917 Dry Gas Meter Volume Sampled, dscf 122.159 124.634 127.391 124.728 Total Moisture Liquid collected, g 607.7 639.5 617.9 621.700 Volume of Water Vapor, standard cubic feet 28.60 30.10 29.08 29.260 Moisture Content of Stack Gas, % 18.97 19.45 18.58 19.000 Moisture Saturation at Stack Gas Temperature, % 56.37 58.21 58.15 57.577 Dry Mole Fraction 0.8103 0.8055 0.8142 0.810 Carbon Dioxide, % 16.3 16.3 16 16.200 Oxygen, % 3.3 3.5 3.5 3.433 Carbon Monoxide & Nitrogen, % 80.4 80.2 80.5 80.367 Fuel Factor 1.08 1.07 1.09 Dry Molecular Weight, lb/lb-Mole 30.74 30.75 30.70 30.730 Wet Molecular weight, lb/lb-Mole 28.32 28.27 28.34 28.310 Flue Gas Static Pressure, inches of H2O -1.2 -1.2 -1.2 -1.200 Absolute Flue Gas Pressure, inches of Mercury 28.98 28.89 29.11 28.993 Average Stack Gas Temperature, °F 183.08 184.40 184.70 184.060 Average Velocity Head, inches of H2O 1.5638137609 59521.541706048

66971.507005737

96156 1.538
Average Stack Gas Velocity, feet/second 76.18 75.90 74.68 75.587 Stack Cross-Sectional Area, square feet 201.062 201.062 201.062 201.062 Dry Volumetric Flow Rate, dry scfm 592,207.3 583,516.2 584,485.2586,736.233 Actual Wet Volumetric Flue Gas Flow Rate, acfm 919,014.2 915,636.3 900,918.6911,856.367 Percent Isokinetic of Sampling Rate, % 101.5 105.1 107.3 104.633 Percent Excess Air, % 18.4 19.8 19.7 19.300 F-Factor, dscfm/MMBtu @ %O2 9860 9860 98609,860.000 Round Duct Diameter, inches 192 192 192 Rectangular Duct Width, inches 0 0 0 Rectangular Duct Length, inches 0 0 0 Fw 11950 11950 1195011,950.000 Fc 1910 1910 1910 1,910.000



### Thursday, January 20, 2011 Page 27 of 27