### Name: Donald Keisling

Title: General Manager and Director of Oper Company: Westmoreland Partners, LLC Sign Date: 8/30/2010 Name: Arthur B Nunn, III Title: President Company:The Air Compliance Group, LLC Sign Date: 8/26/2010 Permitted Facility Representative / Date Testing Company Representative / Date 

## Westmorland - LG&E Roanoke Valley I

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.

Friday, February 18, 2011 Page 1 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010 Facility Information: Westmorland-LG&E Roanoke Valley I
290 Power Place

Weldon NC27890 Contact:Mr. Chris Hews Phone:252-536-3200 Ext. 232 Fax: 252-536-4448 Email:chris.hews@pwrops.com Testing Company: The Air Compliance Group, LLC
5075 Hollins Road

Roanoke VA24019 Contact:Arthur B. Nunn, III - President Phone:540-265-1987, Ext. 201 Fax: 540-265-0082 Email:art.nunn@aircompgroup.com

Air Permit Number: 54035 Permitted Source ID/Name: Enter the Boiler ID of the tested boiler (left) BLR1 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:
165 MW Coal Fired Boiler Industry/SCC/NAIS221112

Sampling Location Information:

Test Parameter Information: AFS #:54035 FRS #:Enter FRS ID

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 150.5 1716 1716 4 0 12 0 0

Target Parameter Test Method Number of

Test RunsTest Run

DurationSample

Points Comments Location% H2O Method 1 - 4 3 180 0 Stack Exit Carbon Monoxide Method 10 3 120 0 Stack Exit Formaldehyde Method 0011 3 120 0 Stack Exit 2,3,7,8-TCDD Method 23 3 480 0 Stack Exit 1,2,3,7,8-PeCDD Method 23 3 480 0 Stack Exit 1,2,3,4,7,8-HxCDD Method 23 3 480 0 Stack Exit 1,2,3,6,7,8-HxCDD Method 23 3 480 0 Stack Exit



### Friday, February 18, 2011 Page 2 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010 1,2,3,7,8,9-HxCDD Method 23 3 480 0 Stack Exit 1,2,3,4,6,7,8-HpCDD Method 23 3 480 0 Stack Exit OCDD Method 23 3 480 0 Stack Exit 2,3,7,8-TCDF Method 23 3 480 0 Stack Exit 1,2,3,7,8-PeCDF Method 23 3 480 0 Stack Exit 2,3,4,7,8-PeCDF Method 23 3 480 0 Stack Exit 1,2,3,4,7,8-HxCDF Method 23 3 480 0 Stack Exit 1,2,3,6,7,8-HxCDF Method 23 3 480 0 Stack Exit 2,3,4,6,7,8-HxCDF Method 23 3 480 0 Stack Exit 1,2,3,7,8,9-HxCDF Method 23 3 480 0 Stack Exit 1,2,3,4,6,7,8-HpCDF Method 23 3 480 0 Stack Exit 1,2,3,4,7,8,9-HpCDF Method 23 3 480 0 Stack Exit OCDF Method 23 3 480 0 Stack Exit Other TCDD Method 23 0 Stack Exit Other PeCDD Method 23 0 Stack Exit Other HxCDD Method 23 0 Stack Exit Other HpCDD Method 23 0 Stack Exit Other TCDF Method 23 0 Stack Exit Other PeCDF Method 23 0 Stack Exit Other HxCDF Method 23 0 Stack Exit Other HpCDF Method 23 0 Stack Exit Total Dioxins Method 23 3 480 0 Stack Exit Total Furans Method 23 3 480 0 Stack Exit 3,3',4,4'-TCB (PCB77) Method 23 3 480 0 Stack Exit 3,4,4',5-TCB (PCB81) Method 23 3 480 0 Stack Exit 2,3,3',4,4'-PeCB (PCB105) Method 23 3 480 0 Stack Exit 2,3,4,4',5-PeCB (PCB114) Method 23 3 480 0 Stack Exit 2,3',4,4',5-PeCB (PCB118) Method 23 3 480 0 Stack Exit 2',3,4,4',5-PeCB (PCB123) Method 23 3 480 0 Stack Exit 3,3',4,4',5-PeCB (PCB126) Method 23 3 480 0 Stack Exit 2,3,3',4,4',5/2,3,3',4,4',5'-

HxCB (PCBs156/157) Method 23 3 480 0 Stack Exit

2,3',4,4',5,5'-HxCB (PCB167)Method 23 3 480 0 Stack Exit 3,3',4,4',5,5'-HxCB (PCB169)Method 23 3 480 0 Stack Exit 2,3,3',4,4',5,5'-HpCB

(PCB189) Method 23 3 480 0 Stack Exit
Total organic compounds

(TOC) as Propane Method 25A 3 120 0 Stack Exit
Hydrogen Fluoride Method 26 3 180 0 Stack Exit Hydrogen Fluoride Method 26A 3 180 0 Stack Exit Hydrogen Chloride Method 26A 3 180 0 Stack Exit Hydrogen Chloride Method 26 3 180 0 Stack Exit Filterable PM2.5 OTM - 27/28 3 240 0 Use only for dry stacks. Delete Method 5/OTM28 tests. Stack Exit

Inorganic (Aqueous)

Condensible Part. OTM - 27/28 3 240 0 Use only for dry stacks. Delete Method 5/OTM28 tests. Stack Exit

Organic Condensible

Particulate OTM - 27/28 3 240 0 Use only for dry stacks. Delete Method 5/OTM28 tests. Stack Exit

Total PM2.5 OTM - 27/28 3 240 0 Use only for dry stacks. Delete Method 5/OTM28 tests. Stack Exit



### Friday, February 18, 2011 Page 3 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010

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.
None Filterable Particulate OTM - 27/28 0 Stack Exit Total Particulate OTM - 27/28 0 Stack Exit Nickel Method 29 3 240 0 Stack Exit Manganese Method 29 3 240 0 Stack Exit Selenium Method 29 3 240 0 Stack Exit Lead Method 29 3 240 0 Stack Exit Chromium Method 29 3 240 0 Stack Exit Cobalt Method 29 3 240 0 Stack Exit Cadmium Method 29 3 240 0 Stack Exit Arsenic Method 29 3 240 0 Stack Exit Antimony Method 29 3 240 0 Stack Exit Filterable Particulate Method 29 3 240 0 Stack Exit Beryllium Method 29 3 240 0 Stack Exit O2 Method 3A O2 3 480 0 Stack Exit Co2 Method 3A CO2 3 480 0 Stack Exit O2 Method 3A O2 3 120 0 Stack Exit Co2 Method 3A CO2 3 120 0 Stack Exit Co2 Method 3A CO2 3 240 0 Stack Exit O2 Method 3A O2 3 240 0 Stack Exit Inorganic (Aqueous)

Condensible Part. Method 5/OTM-28 3 240 0 Use only for wet stacks. Delete OTM27/OTM28 test. Stack Exit

Filterable Particulate Method 5/OTM-28 3 240 0 Use only for wet stacks. Delete OTM27/OTM28 test. Stack Exit

Organic Condensible

Particulate Method 5/OTM-28 3 240 0 Use only for wet stacks. Delete OTM27/OTM28 test. Stack Exit

Total Particulate Method 5/OTM-28 3 240 0 Use only for wet stacks. Delete OTM27/OTM28 test. Stack Exit

Filterable Particulate Method 5 3 240 0 Stack Exit Sulfur Dioxide Method 6C 3 180 0 Stack Exit Nitrogen oxides (NOx) Method 7E 3 180 0 Stack Exit



### Friday, February 18, 2011 Page 4 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010 Sampling / Stack Data Results Summary



### LocationStack Exit - Method 10 Average Run Number 1 2 3
Test Date 6/18/20106/18/2010 6/18/2010 Run Start Time 9:20:00 AM 11:49:00 AM2:53:00 PM

Run Finish Time 11:20:00 AM1:49:00 PM4:53:00 PM Carbon Dioxide, % 11.6 11.73 11.7 11.677 Oxygen, % 7.61 7.38 7.38 7.457 Dry Volumetric Flow Rate, dry scfm 375331 376185 375854375,790.000 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Moisture, % 10.9 10.35 11.68 10.977 Fuel Type Coal - Bituminous Coal -

Bituminous Coal -

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



### LocationStack Exit - Method 23 Average Run Number M23-1 M23-2 M23-3
Test Date 6/18/20106/19/2010 6/20/2010 Run Start Time 7:03:00 AM 7:16:00 AM6:38:00 AM

Run Finish Time 3:07:00 PM3:19:00 PM2:35:00 PM Net Run Time, minutes 480 480 480 Dry Gas Meter Volume Sampled, dscf 382.535 383.260 386.706 384.167 Moisture Content of Stack Gas, % 10.66 11.17 11.10 10.977 Moisture Saturation at Stack Gas Temperature, % 40.64 40.67 40.96 40.757 Carbon Dioxide, % 11 11.23 11.48 11.237 Oxygen, % 7 7.3 7.05 7.117 Average Stack Gas Temperature, °F 170.44 170.52 170.58 170.513 Dry Volumetric Flow Rate, dry scfm 388,375.9 383,311.0 385,978.4385,888.433 Actual Wet Volumetric Flue Gas Flow Rate, acfm 513,226.3 509,001.3 515,079.3512,435.633 Percent Isokinetic of Sampling Rate, % 97.8 99.3 99.5 98.867 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



### Friday, February 18, 2011 Page 5 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010
LocationStack Exit - Method 25A Average Run Number 1 2 3
Test Date 6/18/2010 6/18/2010 6/18/2010 Run Start Time 9:20:00 AM 11:49:00 AM2:53:00 PM

Run Finish Time 11:20:00 AM1:49:00 PM4:53:00 PM Carbon Dioxide, % 11.6 11.73 11.7 11.677 Oxygen, % 7.61 7.38 7.38 7.457 Dry Volumetric Flow Rate, dry scfm 375331 376185 375854375,790.000 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Moisture, % 10.9 10.37 11.68 10.983 Fuel Type Coal - Bituminous Coal -

Bituminous Coal -

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



### LocationStack Exit - Method 26A Average Run Number M26A-1 M26A-2 M26A-3
Test Date 6/15/20106/16/2010 6/17/2010 Run Start Time 1:45:00 PM 6:41:00 AM 1:18:00 PM

Run Finish Time 4:47:00 PM 10:04:00 AM4:14:00 PM

Net Run Time, minutes 180 180 180 Dry Gas Meter Volume Sampled, dscf 138.723 141.676 139.690 140.030 Moisture Content of Stack Gas, % 12.46 12.41 11.53 12.133 Moisture Saturation at Stack Gas Temperature, % 46.72 38.90 47.04 44.220 Carbon Dioxide, % 11.93 12.27 11.3 11.833 Oxygen, % 6.88 6.64 6.62 6.713 Average Stack Gas Temperature, °F 176.53 168.56 176.67 173.920 Dry Volumetric Flow Rate, dry scfm 360,711.5 364,542.9 364,615.4363,289.933 Actual Wet Volumetric Flue Gas Flow Rate, acfm 491,656.5 489,729.3 493,657.8491,681.200 Percent Isokinetic of Sampling Rate, % 101.8 102.9 101.4 102.033 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



### Friday, February 18, 2011 Page 6 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010
LocationStack Exit - Method 29 Average Run Number M29-1 M29-2 M29-3
Test Date 6/15/2010 6/16/2010 6/17/2010 Run Start Time 8:01:00 AM 12:30:00 PM7:42:00 AM

Run Finish Time 12:31:00 PM4:56:00 PM12:06:00 PM Net Run Time, minutes 240 240 240 Dry Gas Meter Volume Sampled, dscf 185.788 188.767 185.145 186.567 Moisture Content of Stack Gas, % 12.09 12.42 11.79 12.100 Moisture Saturation at Stack Gas Temperature, % 46.31 44.55 42.63 44.497 Carbon Dioxide, % 11.95 11.8 10.58 11.443 Oxygen, % 6.87 7.55 7.34 7.253 Average Stack Gas Temperature, °F 175.98 174.48 172.33 174.263 Dry Volumetric Flow Rate, dry scfm 361,883.6 369,626.4 363,675.7365,061.900 Actual Wet Volumetric Flue Gas Flow Rate, acfm 492,546.0 501,292.5 490,470.6494,769.700 Percent Isokinetic of Sampling Rate, % 102.0 101.4 101.1 101.500 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



### LocationStack Exit - OTM - 27/28 Average Run Number M027/8-1 M027/8-3 M027/8-5
Test Date 6/15/20106/16/2010 6/17/2010 Run Start Time 7:26:00 AM 11:49:00 AM7:03:00 AM

Run Finish Time 2:23:18 PM6:09:18 PM 1:12:48 PM Net Run Time, minutes 395.29 396.31 385.65 Dry Gas Meter Volume Sampled, dscf 137.460 137.722 135.895 137.026 Moisture Content of Stack Gas, % 11.14 10.59 11.23 10.987 Moisture Saturation at Stack Gas Temperature, % 44.84 43.34 40.84 43.007 Carbon Dioxide, % 11.88 11.78 11.13 11.597 Oxygen, % 6.86 7.35 6.97 7.060 Average Stack Gas Temperature, °F 174.56 173.27 170.47 172.767 Dry Volumetric Flow Rate, dry scfm 379,759.3 389,195.5 383,667.0384,207.267 Actual Wet Volumetric Flue Gas Flow Rate, acfm 510,039.0 516,042.9 512,485.0512,855.633 Percent Isokinetic of Sampling Rate, % 94.7 92.3 95.0 94.000 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



### Friday, February 18, 2011 Page 7 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010

Friday, February 18, 2011 Page 8 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010 Emissions Summary



### Location: Stack Exit - Method 10 Compound:Carbon Monoxide Average Run 1 2 3 Elb/hr 9.92E+01 3.08E+02 0.00E+00 135.733 lb/mmBtuO2 6.78E-02 2.06E-01 0.00E+00 0.091 ppm 6.06E+01 1.88E+02 0.00E+00 82.867 ppm@7%O2 6.34E+01 1.93E+02 0.00E+00 85.467



### Location: Stack Exit - Method 23 Compound: 1,2,3,4,6,7,8-HpCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000318 0.0000000123 0.0000000114 0.000 lb/mmBtuO2 2.70E-12 1.06E-12 9.59E-13 0.000 ng/dscm 2.94E-03 1.13E-03 1.04E-03 0.002 ng/dscm@7%O2 2.94E-03 1.15E-03 1.04E-03 0.002 

### Compound: 1,2,3,4,6,7,8-HpCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000021 0.0000000176 0.000000011 0.000 lb/mmBtuO2 1.78E-12 1.52E-12 9.26E-13 0.000 ng/dscm 1.94E-03 1.62E-03 1.00E-03 0.002 ng/dscm@7%O2 1.94E-03 1.66E-03 1.00E-03 0.002 

### Compound: 1,2,3,4,7,8,9-HpCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000000484 0.00000000317 0.00000000323 0.000 lb/mmBtuO2 4.10E-13 2.74E-13 2.72E-13 0.000 ng/dscm 4.47E-04 2.92E-04 2.95E-04 0.000 ng/dscm@7%O2 4.47E-04 2.98E-04 2.96E-04 0.000 

### Compound: 1,2,3,4,7,8-HxCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000000174 0.00000000175 0.00000000181 0.000 lb/mmBtuO2 1.47E-13 1.51E-13 1.52E-13 0.000 ng/dscm 1.61E-04 1.61E-04 1.65E-04 0.000 ng/dscm@7%O2 1.61E-04 1.65E-04 1.66E-04 0.000 

### Compound: 1,2,3,4,7,8-HxCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000000656 0.00000000547 0.00000000271 0.000 lb/mmBtuO2 5.56E-13 4.73E-13 2.28E-13 0.000 ng/dscm 6.06E-04 5.04E-04 2.48E-04 0.000 ng/dscm@7%O2 6.06E-04 5.15E-04 2.49E-04 0.000



### Friday, February 18, 2011 Page 9 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010 Compound: 1,2,3,6,7,8-HxCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000000256 0.00000000179 0.00000000179 0.000 lb/mmBtuO2 2.17E-13 1.55E-13 1.51E-13 0.000 ng/dscm 2.36E-04 1.65E-04 1.63E-04 0.000 ng/dscm@7%O2 2.36E-04 1.69E-04 1.64E-04 0.000 

### Compound: 1,2,3,6,7,8-HxCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000000567 0.0000000054 0.00000000334 0.000 lb/mmBtuO2 4.81E-13 4.67E-13 2.81E-13 0.000 ng/dscm 5.24E-04 4.98E-04 3.05E-04 0.000 ng/dscm@7%O2 5.24E-04 5.09E-04 3.06E-04 0.000 

### Compound: 1,2,3,7,8,9-HxCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000000357 0.00000000271 0.00000000226 0.000 lb/mmBtuO2 3.03E-13 2.34E-13 1.90E-13 0.000 ng/dscm 3.30E-04 2.50E-04 2.06E-04 0.000 ng/dscm@7%O2 3.30E-04 2.56E-04 2.07E-04 0.000 

### Compound: 1,2,3,7,8,9-HxCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000000198 0.00000000221 0.00000000159 0.000 lb/mmBtuO2 1.68E-13 1.91E-13 1.34E-13 0.000 ng/dscm 1.83E-04 2.04E-04 1.45E-04 0.000 ng/dscm@7%O2 1.83E-04 2.09E-04 1.46E-04 0.000 

### Compound: 1,2,3,7,8-PeCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000002 0.00000000244 0.00000000186 0.000 lb/mmBtuO2 1.69E-13 2.11E-13 1.56E-13 0.000 ng/dscm 1.85E-04 2.25E-04 1.70E-04 0.000 ng/dscm@7%O2 1.85E-04 2.30E-04 1.71E-04 0.000 

### Compound: 1,2,3,7,8-PeCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000000965 0.00000000771 0.00000000325 0.000 lb/mmBtuO2 8.18E-13 6.67E-13 2.73E-13 0.000 ng/dscm 8.91E-04 7.11E-04 2.97E-04 0.001 ng/dscm@7%O2 8.91E-04 7.27E-04 2.98E-04 0.001 

### Compound:2,3,3',4,4',5,5'-HpCB (PCB189) Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000000672 0.00000000442 0.00000000635 0.000 lb/mmBtuO2 5.70E-13 3.82E-13 5.34E-13 0.000



### Friday, February 18, 2011 Page 10 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010 ng/dscm 6.20E-04 4.07E-04 5.80E-04 0.001 ng/dscm@7%O2 6.20E-04 4.16E-04 5.82E-04 0.001 

### Compound:2,3,3',4,4',5/2,3,3',4,4',5'-HxCB (PC Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000004366 0.00000001368 0.00000001574 0.000 lb/mmBtuO2 3.70E-12 1.18E-12 1.32E-12 0.000 ng/dscm 4.03E-03 1.26E-03 1.44E-03 0.002 ng/dscm@7%O2 4.03E-03 1.29E-03 1.45E-03 0.002 

### Compound:2,3,3',4,4'-PeCB (PCB105) Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000201 0.000000068 0.0000000607 0.000 lb/mmBtuO2 1.70E-11 5.88E-12 5.11E-12 0.000 ng/dscm 1.86E-02 6.27E-03 5.54E-03 0.010 ng/dscm@7%O2 1.86E-02 6.41E-03 5.56E-03 0.010 

### Compound:2,3',4,4',5,5'-HxCB (PCB167) Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000133 0.00000000585 0.00000000554 0.000 lb/mmBtuO2 1.13E-12 5.06E-13 4.66E-13 0.000 ng/dscm 1.23E-03 5.39E-04 5.06E-04 0.001 ng/dscm@7%O2 1.23E-03 5.51E-04 5.08E-04 0.001 

### Compound:2,3,4,4',5-PeCB (PCB114) Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000153 0.00000000406 0.00000000621 0.000 lb/mmBtuO2 1.30E-12 3.51E-13 5.22E-13 0.000 ng/dscm 1.41E-03 3.74E-04 5.67E-04 0.001 ng/dscm@7%O2 1.41E-03 3.82E-04 5.69E-04 0.001 

### Compound:2,3',4,4',5-PeCB (PCB118) Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000502 0.00000018 0.000000155 0.000 lb/mmBtuO2 4.25E-11 1.56E-11 1.30E-11 0.000 ng/dscm 4.64E-02 1.66E-02 1.42E-02 0.026 ng/dscm@7%O2 4.64E-02 1.70E-02 1.43E-02 0.026 

### Compound:2',3,4,4',5-PeCB (PCB123) Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000000938 0.00000000559 0.00000000653 0.000 lb/mmBtuO2 7.95E-13 4.83E-13 5.49E-13 0.000 ng/dscm 8.66E-04 5.15E-04 5.96E-04 0.001 ng/dscm@7%O2 8.66E-04 5.26E-04 5.98E-04 0.001 

### Compound:2,3,4,6,7,8-HxCDF Average RunNumber M23-1 M23-2 M23-3


### Friday, February 18, 2011 Page 11 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010 Mass_mg 0.00000000675 0.00000000564 0.00000000328 0.000 lb/mmBtuO2 5.72E-13 4.88E-13 2.76E-13 0.000 ng/dscm 6.23E-04 5.20E-04 3.00E-04 0.000 ng/dscm@7%O2 6.23E-04 5.31E-04 3.01E-04 0.000 

### Compound:2,3,4,7,8-PeCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000062 0.00000000583 0.00000000393 0.000 lb/mmBtuO2 5.25E-13 5.04E-13 3.31E-13 0.000 ng/dscm 5.72E-04 5.37E-04 3.59E-04 0.000 ng/dscm@7%O2 5.72E-04 5.49E-04 3.60E-04 0.000 

### Compound:2,3,7,8-TCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000000136 0.00000000172 0.00000000132 0.000 lb/mmBtuO2 1.15E-13 1.49E-13 1.11E-13 0.000 ng/dscm 1.26E-04 1.59E-04 1.21E-04 0.000 ng/dscm@7%O2 1.26E-04 1.63E-04 1.21E-04 0.000 

### Compound:2,3,7,8-TCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000254 0.0000000183 0.00000000798 0.000 lb/mmBtuO2 2.15E-12 1.58E-12 6.71E-13 0.000 ng/dscm 2.35E-03 1.69E-03 7.29E-04 0.002 ng/dscm@7%O2 2.35E-03 1.73E-03 7.32E-04 0.002 

### Compound: 3,3',4,4',5,5'-HxCB (PCB169) Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000000251 0.00000000284 0.000000003 0.000 lb/mmBtuO2 2.13E-13 2.46E-13 2.52E-13 0.000 ng/dscm 2.32E-04 2.62E-04 2.74E-04 0.000 ng/dscm@7%O2 2.32E-04 2.68E-04 2.75E-04 0.000 

### Compound: 3,3',4,4',5-PeCB (PCB126) Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000012 0.00000000519 0.00000000716 0.000 lb/mmBtuO2 1.02E-12 4.49E-13 6.02E-13 0.000 ng/dscm 1.11E-03 4.78E-04 6.54E-04 0.001 ng/dscm@7%O2 1.11E-03 4.89E-04 6.56E-04 0.001 

### Compound: 3,3',4,4'-TCB (PCB77) Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000161 0.0000000567 0.0000000503 0.000 lb/mmBtuO2 1.36E-11 4.90E-12 4.23E-12 0.000 ng/dscm 1.49E-02 5.23E-03 4.59E-03 0.008 ng/dscm@7%O2 1.49E-02 5.35E-03 4.61E-03 0.008



### Friday, February 18, 2011 Page 12 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010 Compound: 3,4,4',5-TCB (PCB81) Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000067 0.00000000331 0.00000000386 0.000 lb/mmBtuO2 5.68E-13 2.86E-13 3.25E-13 0.000 ng/dscm 6.19E-04 3.05E-04 3.53E-04 0.000 ng/dscm@7%O2 6.19E-04 3.12E-04 3.54E-04 0.000 

### Compound:OCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000134 0.000000055 0.000000068 0.000 lb/mmBtuO2 1.14E-11 4.75E-12 5.72E-12 0.000 ng/dscm 1.24E-02 5.07E-03 6.21E-03 0.008 ng/dscm@7%O2 1.24E-02 5.18E-03 6.23E-03 0.008 

### Compound:OCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.0000000312 0.0000000181 0.0000000139 0.000 lb/mmBtuO2 2.64E-12 1.56E-12 1.17E-12 0.000 ng/dscm 2.88E-03 1.67E-03 1.27E-03 0.002 ng/dscm@7%O2 2.88E-03 1.71E-03 1.27E-03 0.002 

### Compound:Other HpCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.000000029 0.0000000131 0.0000000119 0.000 lb/mmBtuO2 2.46E-12 1.13E-12 1.00E-12 0.000 ng/dscm 2.68E-03 1.21E-03 1.09E-03 0.002 ng/dscm@7%O2 2.68E-03 1.24E-03 1.09E-03 0.002 

### Compound:Other HpCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000001336 0.00000000948 0.00000000516 0.000 lb/mmBtuO2 1.13E-12 8.20E-13 4.34E-13 0.000 ng/dscm 1.23E-03 8.74E-04 4.71E-04 0.001 ng/dscm@7%O2 1.23E-03 8.93E-04 4.73E-04 0.001 

### Compound:Other HxCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000003553 0.00000002085 0.00000001736 0.000 lb/mmBtuO2 3.01E-12 1.80E-12 1.46E-12 0.000 ng/dscm 3.28E-03 1.92E-03 1.59E-03 0.002 ng/dscm@7%O2 3.28E-03 1.96E-03 1.60E-03 0.002 

### Compound:Other HxCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000003792 0.00000003882 0.00000002516 0.000 lb/mmBtuO2 3.21E-12 3.36E-12 2.12E-12 0.000



### Friday, February 18, 2011 Page 13 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010 ng/dscm 3.50E-03 3.58E-03 2.30E-03 0.003 ng/dscm@7%O2 3.50E-03 3.66E-03 2.31E-03 0.003 

### Compound:Other PeCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000003274 0.00000002524 0.00000002033 0.000 lb/mmBtuO2 2.77E-12 2.18E-12 1.71E-12 0.000 ng/dscm 3.02E-03 2.33E-03 1.86E-03 0.002 ng/dscm@7%O2 3.02E-03 2.38E-03 1.87E-03 0.002 

### Compound:Other PeCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000006406 0.00000007056 0.00000004398 0.000 lb/mmBtuO2 5.43E-12 6.10E-12 3.70E-12 0.000 ng/dscm 5.91E-03 6.50E-03 4.02E-03 0.005 ng/dscm@7%O2 5.91E-03 6.64E-03 4.03E-03 0.006 

### Compound:Other TCDD Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000004049 0.00000003543 0.00000003129 0.000 lb/mmBtuO2 3.43E-12 3.06E-12 2.63E-12 0.000 ng/dscm 3.74E-03 3.27E-03 2.86E-03 0.003 ng/dscm@7%O2 3.74E-03 3.34E-03 2.87E-03 0.003 

### Compound:Other TCDF Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000011179 0.00000012532 0.00000007894 0.000 lb/mmBtuO2 9.47E-12 1.08E-11 6.64E-12 0.000 ng/dscm 1.03E-02 1.15E-02 7.21E-03 0.010 ng/dscm@7%O2 1.03E-02 1.18E-02 7.24E-03 0.010 

### Compound:Total Dioxins Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000031479 0.00000012963 0.00000016932 0.000 lb/mmBtuO2 2.67E-11 1.12E-11 1.42E-11 0.000 ng/dscm 2.91E-02 1.19E-02 1.55E-02 0.019 ng/dscm@7%O2 2.91E-02 1.22E-02 1.56E-02 0.019 

### Compound:Total Furans Average RunNumber M23-1 M23-2 M23-3 Mass_mg 0.00000034638 0.00000033361 0.00000020745 0.000 lb/mmBtuO2 2.94E-11 2.88E-11 1.75E-11 0.000 ng/dscm 3.20E-02 3.07E-02 1.89E-02 0.027 ng/dscm@7%O2 3.20E-02 3.14E-02 1.90E-02 0.027



### Location: Stack Exit - Method 25A



### Friday, February 18, 2011 Page 14 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010 Compound:Total organic compounds (TOC) as Average Run 1 2 3 Elb/hr 0.00E+00 0.00E+00 0.00E+00 0.000 lb/mmBtuO2 0.00E+00 0.00E+00 0.00E+00 0.000 ppm 0.00E+00 0.00E+00 0.00E+00 0.000 ppm@7%O2 0.00E+00 0.00E+00 0.00E+00 0.000



### Location: Stack Exit - Method 26A 

### Compound:Hydrogen Chloride Average RunNumber M26A-1 M26A-2 M26A-3 Mass_mg 0.154 0.351 0.467 0.324 Elb/hr 5.30E-02 1.19E-01 1.61E-01 0.111 lb/mmBtuO2 3.57E-05 7.83E-05 1.05E-04 0.000 mg/dscm 3.92E-02 8.75E-02 1.18E-01 0.082 mg/dscm@7%O2 3.89E-02 8.53E-02 1.15E-01 0.080 

### Compound:Hydrogen Fluoride Average RunNumber M26A-1 M26A-2 M26A-3 Mass_mg 0.295 0.306 0.269 0.290 Elb/hr 1.01E-01 1.04E-01 9.29E-02 0.099 lb/mmBtuO2 6.84E-05 6.83E-05 6.08E-05 0.000 mg/dscm 7.51E-02 7.63E-02 6.80E-02 0.073 mg/dscm@7%O2 7.45E-02 7.44E-02 6.62E-02 0.072



### Location: Stack Exit - Method 29 Compound:Antimony Average RunNumber M29-1 M29-2 M29-3 Mass_mg 0.004953 0.000821 0.001214 0.002 Elb/hr 1.28E-03 2.13E-04 3.15E-04 0.001 lb/mmBtuO2 8.56E-07 1.47E-07 2.18E-07 0.000 mg/dscm 9.42E-04 1.54E-04 2.32E-04 0.000 mg/dscm@7%O2 9.33E-04 1.60E-04 2.38E-04 0.000 

### Compound:Arsenic Average RunNumber M29-1 M29-2 M29-3 Mass_mg 0.061309 0.004587 0.003079 0.023 Elb/hr 1.58E-02 1.19E-03 8.00E-04 0.006 lb/mmBtuO2 1.06E-05 8.20E-07 5.53E-07 0.000 mg/dscm 1.17E-02 8.58E-04 5.87E-04 0.004 mg/dscm@7%O2 1.16E-02 8.93E-04 6.02E-04 0.004 

### Compound:Beryllium Average RunNumber M29-1 M29-2 M29-3 Mass_mg 0.011125 0.001225 0.00089 0.004 Elb/hr 2.87E-03 3.17E-04 2.31E-04 0.001 lb/mmBtuO2 1.92E-06 2.19E-07 1.60E-07 0.000



### Friday, February 18, 2011 Page 15 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010 mg/dscm 2.11E-03 2.29E-04 1.70E-04 0.001 mg/dscm@7%O2 2.09E-03 2.38E-04 1.74E-04 0.001 

### Compound:Cadmium Average RunNumber M29-1 M29-2 M29-3 Mass_mg 0.006465 0.000992 0.000778 0.003 Elb/hr 1.67E-03 2.57E-04 2.02E-04 0.001 lb/mmBtuO2 1.12E-06 1.77E-07 1.40E-07 0.000 mg/dscm 1.23E-03 1.86E-04 1.48E-04 0.001 mg/dscm@7%O2 1.22E-03 1.94E-04 1.52E-04 0.001 

### Compound:Chromium Average RunNumber M29-1 M29-2 M29-3 Mass_mg 4.060127 0.066647 0.028777 1.385 Elb/hr 1.05E+00 1.73E-02 7.48E-03 0.358 lb/mmBtuO2 7.02E-04 1.19E-05 5.17E-06 0.000 mg/dscm 7.72E-01 1.25E-02 5.49E-03 0.263 mg/dscm@7%O2 7.65E-01 1.30E-02 5.63E-03 0.261 

### Compound:Cobalt Average RunNumber M29-1 M29-2 M29-3 Mass_mg 0.039736 0.00755 0.00576 0.018 Elb/hr 1.02E-02 1.96E-03 1.50E-03 0.005 lb/mmBtuO2 6.87E-06 1.35E-06 1.03E-06 0.000 mg/dscm 7.55E-03 1.41E-03 1.10E-03 0.003 mg/dscm@7%O2 7.48E-03 1.47E-03 1.13E-03 0.003 

### Compound:Filterable Particulate Average RunNumber M29-1 M29-2 M29-3 Mass_mg 0 158.92 117.57 92.163 Elb/hr 0.00E+00 4.12E+01 3.05E+01 23.900 lb/mmBtuO2 0.00E+00 2.84E-02 2.11E-02 0.017 mg/dscm 0.00E+00 2.97E+01 2.24E+01 17.367 mg/dscm@7%O2 0.00E+00 3.09E+01 2.30E+01 17.967 

### Compound:Lead Average RunNumber M29-1 M29-2 M29-3 Mass_mg 0.061637 0.010857 0.010567 0.028 Elb/hr 1.59E-02 2.81E-03 2.75E-03 0.007 lb/mmBtuO2 1.07E-05 1.94E-06 1.90E-06 0.000 mg/dscm 1.17E-02 2.03E-03 2.02E-03 0.005 mg/dscm@7%O2 1.16E-02 2.11E-03 2.07E-03 0.005 

### Compound:Manganese Average RunNumber M29-1 M29-2 M29-3 Mass_mg 0.53447 0.44612 0.44832 0.476 Elb/hr 1.38E-01 1.16E-01 1.16E-01 0.123 lb/mmBtuO2 9.24E-05 7.98E-05 8.05E-05 0.000


### Friday, February 18, 2011 Page 16 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010 mg/dscm 1.02E-01 8.35E-02 8.55E-02 0.090 mg/dscm@7%O2 1.01E-01 8.69E-02 8.76E-02 0.092 

### Compound:Nickel Average RunNumber M29-1 M29-2 M29-3 Mass_mg 0.554169 0.023589 0.012788 0.197 Elb/hr 1.43E-01 6.11E-03 3.32E-03 0.051 lb/mmBtuO2 9.58E-05 4.22E-06 2.30E-06 0.000 mg/dscm 1.05E-01 4.41E-03 2.44E-03 0.037 mg/dscm@7%O2 1.04E-01 4.59E-03 2.50E-03 0.037 

### Compound: Selenium Average RunNumber M29-1 M29-2 M29-3 Mass_mg 0.0277 0.005933 0.0057 0.013 Elb/hr 7.14E-03 1.54E-03 1.48E-03 0.003 lb/mmBtuO2 4.79E-06 1.06E-06 1.02E-06 0.000 mg/dscm 5.27E-03 1.11E-03 1.09E-03 0.002 mg/dscm@7%O2 5.22E-03 1.16E-03 1.12E-03 0.003



### Location: Stack Exit - OTM - 27/28 Compound:Filterable Particulate Average RunNumber M027/8-1 M027/8-3 M027/8-5 Mass_mg 0 158.92 117.57 92.163 Elb/hr 0.00E+00 5.94E+01 4.39E+01 34.433 lb/mmBtuO2 0.00E+00 3.84E-02 2.80E-02 0.022 mg/dscm 0.00E+00 4.08E+01 3.06E+01 23.800 mg/dscm@7%O2 0.00E+00 4.19E+01 3.05E+01 24.133 

### Compound:Filterable PM2.5 Average RunNumber M027/8-1 M027/8-3 M027/8-5 Mass_mg 24.32 55.6 108.72 62.880 Elb/hr 8.89E+00 2.08E+01 4.06E+01 23.430 lb/mmBtuO2 5.68E-03 1.34E-02 2.59E-02 0.015 mg/dscm 6.25E+00 1.43E+01 2.83E+01 16.283 mg/dscm@7%O2 6.19E+00 1.47E+01 2.82E+01 16.363 

### Compound:Inorganic (Aqueous) Condensible Pa Average RunNumber M027/8-1 M027/8-3 M027/8-5 Mass_mg 18.59 49.48 33.29 33.787 Elb/hr 6.79E+00 1.85E+01 1.24E+01 12.563 lb/mmBtuO2 4.34E-03 1.19E-02 7.92E-03 0.008 mg/dscm 4.78E+00 1.27E+01 8.65E+00 8.710 mg/dscm@7%O2 4.73E+00 1.30E+01 8.63E+00 8.787 

### Compound:Organic Condensible Particulate Average RunNumber M027/8-1 M027/8-3 M027/8-5 Mass_mg 2.01 8.12 1.61 3.913



### Friday, February 18, 2011 Page 17 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010

Process Run Data Elb/hr 7.35E-01 3.04E+00 6.01E-01 1.459 lb/mmBtuO2 4.69E-04 1.96E-03 3.83E-04 0.001 mg/dscm 5.16E-01 2.08E+00 4.18E-01 1.005 mg/dscm@7%O2 5.11E-01 2.13E+00 4.17E-01 1.019 

### Compound:Total Particulate Average RunNumber M027/8-1 M027/8-3 M027/8-5 Mass_mg 0 216.52 152.47 122.997 Elb/hr 0.00E+00 8.09E+01 5.69E+01 45.933 lb/mmBtuO2 0.00E+00 5.23E-02 3.63E-02 0.030 mg/dscm 0.00E+00 5.55E+01 3.96E+01 31.700 mg/dscm@7%O2 0.00E+00 5.69E+01 3.95E+01 32.133 

### Compound:Total PM2.5 Average RunNumber M027/8-1 M027/8-3 M027/8-5 Mass_mg 84.92 115.2 143.62 114.580 Elb/hr 3.10E+01 4.31E+01 5.36E+01 42.567 lb/mmBtuO2 1.98E-02 2.78E-02 3.42E-02 0.027 mg/dscm 2.18E+01 2.95E+01 3.73E+01 29.533 mg/dscm@7%O2 2.16E+01 3.03E+01 3.72E+01 29.700



### Friday, February 18, 2011 Page 18 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010 Process Run Data



### Run Name Value UOM Comments Target Value 1 Bituminous Coal Burned 131 1000 lbs/hr M10, M25A, M316, M18 Runs 1-3 & M23 Run 1 0

2 Bituminous Coal Burned 131 1000 lbs/hr M23 Run 2, M30B Runs 1-3 0



### 3 Bituminous Coal Burned 131 1000 lbs/hr M23 Run 3 0
1 Average Heat Input 1561 MMBtu/hr M10, M25A, M316, M18 Runs 1-3 & M23 Run 1 0



### 2Average Heat Input 1557 MMBtu/hr M23 Run 2, M30B Runs 1-3 0

3 Average Heat Input 1558 MMBtu/hr M23 Run 3 0


### 1 Steam Output 11101000 lb steam/hr M10, M25A, M316, M18 Runs 1-3 & M23 Run 1 0

2 Steam Output 10951000 lb steam/hr M23 Run 2, M30B Runs 1-3 0



### 3 Steam Output 11001000 lb steam/hr M23 Run 3 0
4 Bituminous Coal Burned 132 1000 lbs/hr M26A, OTM27/28, M29, CTM033 - Run 1 0

4 Average Heat Input 1574 MMBtu/hr M26A, OTM27/28, M29, CTM033 - Run 1 0



### 4 Steam Output 11241000 lb steam/hr M26A, OTM27/28, M29, CTM033 - Run 1 0

5 Bituminous Coal Burned 132 1000 lbs/hr M26A, OTM27/28, M29, CTM033 - Run 2 0

5 Average Heat Input 1562 MMBtu/hr M26A, OTM27/28, M29, CTM033 - Run 2 0

5 Steam Output 11241000 lb steam/hr M26A, OTM27/28, M29, CTM033 - Run 2 0



### 6 Bituminous Coal Burned 132 1000 lbs/hr M26A, OTM27/28, M29, CTM033 - Run 3 0

6 Average Heat Input 1571 MMBtu/hr M26A, OTM27/28, M29, CTM033 - Run 3 0

Friday, February 18, 2011 Page 19 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010

APCD Run Data

Process Lab Run Data 6 Steam Output 10981000 lb steam/hr M26A, OTM27/28, M29, CTM033 - Run 3 0



### Run Name Value UOM Comments Target Value 1 LOW NOX BURNERS 0 0


### 1 DRY SCRUBBER 0 0
1 BAGHOUSE 0 0

Run Name ValueUOM Comments 1 Fuel Higher Heating Value 0 Btu/lb 

### 1 Fuel Moisture 0 % 1 Fuel Mercury Content 0 ppm 1 Fuel Cadmium Content 0 ppm 1 Ultimate/Proximate Analysis 0 

### 1 Fuel Nickel Content 0 ppm 1 Fuel Arsenic Content 0 ppm 1 Fuel Chromium Content 0 ppm 

### 1 Fuel Beryllium Content 0 ppm 1 Fuel Lead Content 0 ppm 1 Fuel Manganese Content 0 ppm 1 Fuel Chlorine Content 0 ppm 

### 1 Fuel Fluorine Content 0 ppm

Friday, February 18, 2011 Page 20 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010 Sampling / Stack Data Results Detail



### LocationStack Exit - Method 10 Average Run Number 1 2 3 Test Date 6/18/2010 6/18/2010 6/18/2010 Run Start Time 9:20:00 AM11:49:00 AM2:53:00 PM Run Finish Time 11:20:00 AM1:49:00 PM4:53:00 PM Carbon Dioxide, % 11.6 11.73 11.7 11.677 Oxygen, % 7.61 7.38 7.38 7.457 Fuel Factor 1.15 1.15 1.16 Dry Volumetric Flow Rate, dry scfm 375331 376185 375854375,790.000 F-Factor, dscfm/MMBtu @ %O2 9780 9780 97809,780.000 Moisture, % 10.9 10.35 11.68 10.977 Analyzer Make Analyzer Model Analyzer Serial Number Operating Range 1005 1005 10051,005.000 Operating Units ppm ppm ppm No. Readings/Avg. 120 120 120 120.000 Calibration Set 1 1 1 1.000 Calibration Pre Zero Cylinder ID Zero Air Zero Air Zero Air Calibration Pre Zero Cylinder Instrument Response 4.6 4.18 5.43 4.737 Calibration Pre Zero Cylinder Bias 0.37 0.33 0.46 0.387 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID Low CO Low CO Low CO Calibration Pre High Cylinder Instrument Response 483.05 483.93 486.42 484.467 Calibration Pre High Cylinder Bias -0.77 -0.68 -0.44 -0.630 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID Zero Air Zero Air Zero Air Calibration Post Zero Cylinder Instrument Response 4.18 5.43 5.85 5.153 Calibration Post Zero Cylinder Bias 0.33 0.46 0.5 0.430 Calibration Post Zero Cylinder Drift 0.04 0.13 0.04 0.070 Calibration Post High Cylinder ID Low CO Low CO Low CO Calibration Post High Cylinder Instrument Response 483.93 486.42 485.21 485.187 Calibration Post High Cylinder Bias -0.68 -0.44 -0.56 -0.560 Calibration Post High Cylinder Drift 0.09 0.24 0.12 0.150 Cavg 63.08 187.15 105.53 118.587 Cavg Units ppmvd ppmvd ppmvd Cgas 60.6 187.7 0 82.767 Cgas Units ppmvd ppmvd ppmvd Fuel Type Coal - Bituminous Coal -

Bituminous Coal -

Bituminous Fw 10640 10640 1064010,640.000 Fc 1800 1800 18001,800.000 Cgasw 0 0 0 0.000 Cgasw Units



### Friday, February 18, 2011 Page 21 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010
LocationStack Exit - Method 23 Average Run Number M23-1 M23-2 M23-3 Test Date 6/18/2010 6/19/2010 6/20/2010 Run Start Time 7:03:00 AM7:16:00 AM6:38:00 AM Run Finish Time 3:07:00 PM3:19:00 PM2:35:00 PM Net Traversing Points 24 24 24 Net Run Time, minutes 480 480 480 Nozzle Diameter, inches 0.218 0.218 0.218 0.218 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 1.0121 1.0121 1.0121 1.012 Barometric Pressure, inches of Mercury 30.28 30.31 30.15 30.247 Average Orifice Meter Differential, inches H2O 2.23 2.27 2.32 2.273 Dry Gas Meter Volume Sampled, cubic feet 381.334 387.192 391.638 386.721 Average Dry Gas Meter Temperature, °F 82.04 89.92 88.45 86.803 Dry Gas Meter Volume Sampled, dscf 382.535 383.260 386.706 384.167 Total Moisture Liquid collected, g 969.4 1024.3 1025.91,006.533 Volume of Water Vapor, standard cubic feet 45.63 48.21 48.29 47.377 Moisture Content of Stack Gas, % 10.66 11.17 11.10 10.977 Moisture Saturation at Stack Gas Temperature, % 40.64 40.67 40.96 40.757 Dry Mole Fraction 0.8934 0.8883 0.889 0.890 Carbon Dioxide, % 11 11.23 11.48 11.237 Oxygen, % 7 7.3 7.05 7.117 Carbon Monoxide & Nitrogen, % 82 81.47 81.47 81.647 Fuel Factor 1.26 1.21 1.21 Dry Molecular Weight, lb/lb-Mole 30.04 30.09 30.12 30.083 Wet Molecular weight, lb/lb-Mole 28.76 28.74 28.77 28.757 Flue Gas Static Pressure, inches of H2O -0.33 -0.33 -0.36 -0.340 Absolute Flue Gas Pressure, inches of Mercury 30.26 30.29 30.12 30.223 Average Stack Gas Temperature, °F 170.44 170.52 170.58 170.513 Average Velocity Head, inches of H2O 1.2833826602 47151.262333332

443951.286784468

42901 1.278
Average Stack Gas Velocity, feet/second 69.24 68.67 69.49 69.133 Stack Cross-Sectional Area, square feet 123.538 123.538 123.538 123.538 Dry Volumetric Flow Rate, dry scfm 388,375.9 383,311.0 385,978.4385,888.433 Actual Wet Volumetric Flue Gas Flow Rate, acfm 513,226.3 509,001.3 515,079.3512,435.633 Percent Isokinetic of Sampling Rate, % 97.8 99.3 99.5 98.867 Percent Excess Air, % 47.8 51.4 48.8 49.333 F-Factor, dscfm/MMBtu @ %O2 9780 9780 97809,780.000 Round Duct Diameter, inches 150.5 150.5 150.5 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



### Friday, February 18, 2011 Page 22 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010
LocationStack Exit - Method 25A Average Run Number 1 2 3 Test Date 6/18/2010 6/18/2010 6/18/2010 Run Start Time 9:20:00 AM11:49:00 AM2:53:00 PM Run Finish Time 11:20:00 AM1:49:00 PM4:53:00 PM Carbon Dioxide, % 11.6 11.73 11.7 11.677 Oxygen, % 7.61 7.38 7.38 7.457 Fuel Factor 1.15 1.15 1.16 Dry Volumetric Flow Rate, dry scfm 375331 376185 375854375,790.000 F-Factor, dscfm/MMBtu @ %O2 9780 9780 97809,780.000 Moisture, % 10.9 10.37 11.68 10.983 Analyzer Make Analyzer Model Analyzer Serial Number Operating Range 30 30 30 30.000 Operating Units ppm ppm ppm No. Readings/Avg. 120 120 120 120.000 Calibration Set 2 2 3 2.333 Calibration Pre Zero Cylinder ID Zero Air Zero Air Zero Air Calibration Pre Zero Cylinder Instrument Response -0.21 0.23 0.23 0.083 Calibration Pre Zero Cylinder Bias -0.2 1.27 0.33 0.467 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID Low THC Low THC Low THC Calibration Pre High Cylinder Instrument Response 7.78 8.06 8.21 8.017 Calibration Pre High Cylinder Bias -0.07 0.87 -0.13 0.223 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID Zero Air Zero Air Zero Air Calibration Post Zero Cylinder Instrument Response 0.23 1.26 0.09 0.527 Calibration Post Zero Cylinder Bias 1.27 4.7 -0.13 1.947 Calibration Post Zero Cylinder Drift 1.47 3.43 0.46 1.787 Calibration Post High Cylinder ID Low THC Low THC Low THC Calibration Post High Cylinder Instrument Response 8.06 9.57 7.7 8.443 Calibration Post High Cylinder Bias 0.87 5.9 -1.83 1.647 Calibration Post High Cylinder Drift 0.94 5.03 1.7 2.557 Cavg 0 0 0 0.000 Cavg Units ppmvw ppmvw ppmvw Cgas 0 0 0 0.000 Cgas Units ppmvd ppmvd ppmvd Fuel Type Coal - Bituminous Coal -

Bituminous Coal -

Bituminous Fw 10640 10640 1064010,640.000 Fc 1800 1800 18001,800.000 Cgasw 0 0 0 0.000 Cgasw Units ppmvw ppmvw ppmvw



### Friday, February 18, 2011 Page 23 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010
LocationStack Exit - Method 26A Average Run Number M26A-1 M26A-2 M26A-3 Test Date 6/15/2010 6/16/2010 6/17/2010 Run Start Time 1:45:00 PM6:41:00 AM 1:18:00 PM Run Finish Time 4:47:00 PM10:04:00 AM4:14:00 PM Net Traversing Points 12 12 12 Net Run Time, minutes 180 180 180 Nozzle Diameter, inches 0.218 0.218 0.218 0.218 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 0.9903 0.9903 0.9903 0.990 Barometric Pressure, inches of Mercury 30.25 30.3 30.15 30.233 Average Orifice Meter Differential, inches H2O 2.10 2.12 2.11 2.110 Dry Gas Meter Volume Sampled, cubic feet 144.014 144.443 145.569 144.675 Average Dry Gas Meter Temperature, °F 91.61 82.64 91.90 88.717 Dry Gas Meter Volume Sampled, dscf 138.723 141.676 139.690 140.030 Total Moisture Liquid collected, g 419.4 426.5 386.8 410.900 Volume of Water Vapor, standard cubic feet 19.74 20.08 18.21 19.343 Moisture Content of Stack Gas, % 12.46 12.41 11.53 12.133 Moisture Saturation at Stack Gas Temperature, % 46.72 38.90 47.04 44.220 Dry Mole Fraction 0.8754 0.8759 0.8847 0.879 Carbon Dioxide, % 11.93 12.27 11.3 11.833 Oxygen, % 6.88 6.64 6.62 6.713 Carbon Monoxide & Nitrogen, % 81.19 81.09 82.08 81.453 Fuel Factor 1.18 1.16 1.26 Dry Molecular Weight, lb/lb-Mole 30.18 30.23 30.07 30.160 Wet Molecular weight, lb/lb-Mole 28.66 28.71 28.68 28.683 Flue Gas Static Pressure, inches of H2O -0.34 -0.38 -0.38 -0.367 Absolute Flue Gas Pressure, inches of Mercury 30.23 30.27 30.12 30.207 Average Stack Gas Temperature, °F 176.53 168.56 176.67 173.920 Average Velocity Head, inches of H2O 1.1613800890 85181.170339086

613841.167091947

24959 1.166
Average Stack Gas Velocity, feet/second 66.33 66.07 66.60 66.333 Stack Cross-Sectional Area, square feet 123.538 123.538 123.538 123.538 Dry Volumetric Flow Rate, dry scfm 360,711.5 364,542.9 364,615.4363,289.933 Actual Wet Volumetric Flue Gas Flow Rate, acfm 491,656.5 489,729.3 493,657.8491,681.200 Percent Isokinetic of Sampling Rate, % 101.8 102.9 101.4 102.033 Percent Excess Air, % 47.3 45.0 44.0 45.433 F-Factor, dscfm/MMBtu @ %O2 9780 9780 97809,780.000 Round Duct Diameter, inches 150.5 150.5 150.5 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



### Friday, February 18, 2011 Page 24 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010
LocationStack Exit - Method 29 Average Run Number M29-1 M29-2 M29-3 Test Date 6/15/2010 6/16/2010 6/17/2010 Run Start Time 8:01:00 AM12:30:00 PM7:42:00 AM Run Finish Time 12:31:00 PM4:56:00 PM12:06:00 PM Net Traversing Points 24 24 24 Net Run Time, minutes 240 240 240 Nozzle Diameter, inches 0.218 0.218 0.218 0.218 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 0.9903 0.9903 0.9903 0.990 Barometric Pressure, inches of Mercury 30.15 30.3 30.15 30.200 Average Orifice Meter Differential, inches H2O 2.11 2.19 2.09 2.130 Dry Gas Meter Volume Sampled, cubic feet 191.962 196.553 191.702 193.406 Average Dry Gas Meter Temperature, °F 87.21 94.29 88.34 89.947 Dry Gas Meter Volume Sampled, dscf 185.788 188.767 185.145 186.567 Total Moisture Liquid collected, g 542.6 568.6 525.9 545.700 Volume of Water Vapor, standard cubic feet 25.54 26.76 24.75 25.683 Moisture Content of Stack Gas, % 12.09 12.42 11.79 12.100 Moisture Saturation at Stack Gas Temperature, % 46.31 44.55 42.63 44.497 Dry Mole Fraction 0.8791 0.8758 0.8821 0.879 Carbon Dioxide, % 11.95 11.8 10.58 11.443 Oxygen, % 6.87 7.55 7.34 7.253 Carbon Monoxide & Nitrogen, % 81.18 80.65 82.08 81.303 Fuel Factor 1.17 1.13 1.28 Dry Molecular Weight, lb/lb-Mole 30.19 30.19 29.99 30.123 Wet Molecular weight, lb/lb-Mole 28.72 28.68 28.58 28.660 Flue Gas Static Pressure, inches of H2O -0.41 -0.42 -0.37 -0.400 Absolute Flue Gas Pressure, inches of Mercury 30.12 30.27 30.12 30.170 Average Stack Gas Temperature, °F 175.98 174.48 172.33 174.263 Average Velocity Head, inches of H2O 1.1647931015 70621.213534998

547171.156000745

36872 1.178
Average Stack Gas Velocity, feet/second 66.45 67.63 66.17 66.750 Stack Cross-Sectional Area, square feet 123.538 123.538 123.538 123.538 Dry Volumetric Flow Rate, dry scfm 361,883.6 369,626.4 363,675.7365,061.900 Actual Wet Volumetric Flue Gas Flow Rate, acfm 492,546.0 501,292.5 490,470.6494,769.700 Percent Isokinetic of Sampling Rate, % 102.0 101.4 101.1 101.500 Percent Excess Air, % 47.2 54.9 51.2 51.100 F-Factor, dscfm/MMBtu @ %O2 9780 9780 97809,780.000 Round Duct Diameter, inches 150.5 150.5 150.5 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



### Friday, February 18, 2011 Page 25 of 26

### Westmorland - LG&E Roanoke Valley I
8/30/2010
LocationStack Exit - OTM - 27/28 Average Run Number M027/8-1 M027/8-3 M027/8-5 Test Date 6/15/2010 6/16/2010 6/17/2010 Run Start Time 7:26:00 AM11:49:00 AM7:03:00 AM Run Finish Time 2:23:18 PM6:09:18 PM 1:12:48 PM Net Traversing Points 12 12 12 Net Run Time, minutes 395.29 396.31 385.65 Nozzle Diameter, inches 0.148 0.148 0.148 0.148 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 1.0121 1.0121 1.0121 1.012 Barometric Pressure, inches of Mercury 30.15 30.3 30.15 30.200 Average Orifice Meter Differential, inches H2O 0.42 0.40 0.40 0.407 Dry Gas Meter Volume Sampled, cubic feet 139.325 139.438 136.553 138.439 Average Dry Gas Meter Temperature, °F 86.36 88.45 81.63 85.480 Dry Gas Meter Volume Sampled, dscf 137.460 137.722 135.895 137.026 Total Moisture Liquid collected, g 366.3 346.6 365.5 359.467 Volume of Water Vapor, standard cubic feet 17.24 16.31 17.20 16.917 Moisture Content of Stack Gas, % 11.14 10.59 11.23 10.987 Moisture Saturation at Stack Gas Temperature, % 44.84 43.34 40.84 43.007 Dry Mole Fraction 0.8886 0.8941 0.8877 0.890 Carbon Dioxide, % 11.88 11.78 11.13 11.597 Oxygen, % 6.86 7.35 6.97 7.060 Carbon Monoxide & Nitrogen, % 81.26 80.87 81.9 81.343 Fuel Factor 1.18 1.15 1.25 Dry Molecular Weight, lb/lb-Mole 30.18 30.18 30.06 30.140 Wet Molecular weight, lb/lb-Mole 28.82 28.89 28.71 28.807 Flue Gas Static Pressure, inches of H2O -0.27 -0.38 -0.32 -0.323 Absolute Flue Gas Pressure, inches of Mercury 30.13 30.27 30.13 30.177 Average Stack Gas Temperature, °F 174.56 173.27 170.47 172.767 Average Velocity Head, inches of H2O 1.2565031357 48061.298033020

431081.271676427

12072 1.275
Average Stack Gas Velocity, feet/second 68.81 69.62 69.14 69.190 Stack Cross-Sectional Area, square feet 123.538 123.538 123.538 123.538 Dry Volumetric Flow Rate, dry scfm 379,759.3 389,195.5 383,667.0384,207.267 Actual Wet Volumetric Flue Gas Flow Rate, acfm 510,039.0 516,042.9 512,485.0512,855.633 Percent Isokinetic of Sampling Rate, % 94.7 92.3 95.0 94.000 Percent Excess Air, % 47.0 52.5 47.6 49.033 F-Factor, dscfm/MMBtu @ %O2 9780 9780 97809,780.000 Round Duct Diameter, inches 150.5 150.5 150.5 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



### Friday, February 18, 2011 Page 26 of 26