### Name: Chris Welch

Title: Environmental Specialist Company: Colorado Springs Utilities Sign Date: 7/23/2010 Name: Chet Gutwein Title: Engineer Company:Airtech Environmental Services Inc. Sign Date: 7/23/2010 Permitted Facility Representative / Date Testing Company Representative / Date 

## Ray D. Nixon Unit 1 Final Test Report for

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

Saturday, January 22, 2011 Page 1 of 17

### Ray D. Nixon Unit 1
7/23/2010 Facility Information: Ray D. Nixon 6598 Ray D. Nixon Road

Fountain CO80817 Contact:Chris Welch Phone:(719) 668-8681 Fax: Email:cwelch@csu.org Testing Company:
Airtech Environmental Services Inc.
5776 Lamar Street

Arvada CO80002 Contact:Allon Kienitz Phone:(303) 670-0530 Fax: (303) 670-4130 Email:akienitz@airtechenv.com

Air Permit Number: 8219 Permitted Source ID/Name: 1 Permitted Maximum Process Rate: N/A Max. Normal Operation Process Rate: N/A Target Process Test Rate N/A

Description of the source (including control equipment). Please see the attachments for source or process flow diagram: Colorado Springs Utilities operates a coal-fired boiler for the generation of commercial electricity at their Ray D. Nixon Power Plant, designated Unit 1. The Unit 1 Boiler was manufactured by Babcock & Wilcox and is rated at 227 megawatts (MW). Unit 1 is equipped with a Western Precipitation Thermoflex baghouse for the control of particulate.
The Ray D. Nixon Power Plant is located at 6598 Ray D. Nixon Road in Fountain, Colorado. Industry/SCC/NAIS221112

Sampling Location Information:

Test Parameter Information: AFS #:0804100030 FRS #:110000467646

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 241.5 7.5 7.5 4 241.5 16 0 0

Target Parameter Test Method Number of

Test RunsTest Run

DurationSample

Points Comments Location2,3,7,8-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 1,2,3,7,8,9-HxCDD Method 23 3 480 0 Stack Exit


### Saturday, January 22, 2011 Page 2 of 17

### Ray D. Nixon Unit 1
7/23/2010

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. The following is a list of the test methods that are to be used for this test program and their respective promulgation dates: Methods 1 through 23 – August 1997

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 TEQ Method 23 3 480 0 Stack Exit



### Saturday, January 22, 2011 Page 3 of 17

### Ray D. Nixon Unit 1
7/23/2010 Sampling / Stack Data Results Summary


### LocationStack Exit - Method 23 Average Run Number 1 2 3
Test Date 5/25/20105/26/2010 5/27/2010 Run Start Time 7:28:00 AM 7:06:00 AM7:26:00 AM

Run Finish Time 4:06:00 PM3:45:00 PM3:47:00 PM Net Run Time, minutes 480 480 480 Dry Gas Meter Volume Sampled, dscf 324.232 314.070 303.187 313.830 Moisture Content of Stack Gas, % 10.28 10.81 11.28 10.790 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Carbon Dioxide, % 13.9 13.1 13.5 13.500 Oxygen, % 5.47 5.97 5.7 5.713 Average Stack Gas Temperature, °F 330.38 331.97 336.38 332.910 Dry Volumetric Flow Rate, dry scfm 543,538.4 533,938.3 520,999.2532,825.300 Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,107,938.81,106,984.5 1,089,234.61,101,385.96 7 Percent Isokinetic of Sampling Rate, % 104.8 103.3 102.2 103.433 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



### Saturday, January 22, 2011 Page 4 of 17

### Ray D. Nixon Unit 1
7/23/2010 Emissions Summary


### Location: Stack Exit - Method 23 Compound: 1,2,3,4,6,7,8-HpCDD Average RunNumber 1 2 3 Mass_mg 0.000000021 0.0000000123 0.000000025 0.000 lb/mmBtuO2 1.89E-12 1.18E-12 2.44E-12 0.000 ng/dscm 2.29E-03 1.38E-03 2.91E-03 0.002 ng/dscm@7%O2 2.06E-03 1.28E-03 2.66E-03 0.002 

### Compound: 1,2,3,4,6,7,8-HpCDF Average RunNumber 1 2 3 Mass_mg 0.0000000033 0.0000000032 0.0000000027 0.000 lb/mmBtuO2 2.97E-13 3.08E-13 2.64E-13 0.000 ng/dscm 3.59E-04 3.60E-04 3.15E-04 0.000 ng/dscm@7%O2 3.23E-04 3.35E-04 2.88E-04 0.000 

### Compound: 1,2,3,4,7,8,9-HpCDF Average RunNumber 1 2 3 Mass_mg 0.0000000042 0.0000000041 0.0000000034 0.000 lb/mmBtuO2 3.78E-13 3.94E-13 3.32E-13 0.000 ng/dscm 4.58E-04 4.61E-04 3.96E-04 0.000 ng/dscm@7%O2 4.13E-04 4.29E-04 3.62E-04 0.000 

### Compound: 1,2,3,4,7,8-HxCDD Average RunNumber 1 2 3 Mass_mg 0.0000000031 0.0000000037 0.0000000029 0.000 lb/mmBtuO2 2.79E-13 3.56E-13 2.84E-13 0.000 ng/dscm 3.38E-04 4.16E-04 3.38E-04 0.000 ng/dscm@7%O2 3.04E-04 3.87E-04 3.09E-04 0.000 

### Compound: 1,2,3,4,7,8-HxCDF Average RunNumber 1 2 3 Mass_mg 0.0000000024 0.0000000025 0.0000000019 0.000 lb/mmBtuO2 2.16E-13 2.40E-13 1.86E-13 0.000 ng/dscm 2.61E-04 2.81E-04 2.21E-04 0.000 ng/dscm@7%O2 2.35E-04 2.62E-04 2.02E-04 0.000 

### Compound: 1,2,3,6,7,8-HxCDD Average RunNumber 1 2 3 Mass_mg 0.0000000031 0.0000000036 0.0000000028 0.000 lb/mmBtuO2 2.79E-13 3.46E-13 2.74E-13 0.000 ng/dscm 3.38E-04 4.05E-04 3.26E-04 0.000 ng/dscm@7%O2 3.04E-04 3.77E-04 2.98E-04 0.000 

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



### Saturday, January 22, 2011 Page 5 of 17

### Ray D. Nixon Unit 1
7/23/2010
RunNumber 1 2 3 Mass_mg 0.0000000021 0.0000000022 0.0000000017 0.000 lb/mmBtuO2 1.89E-13 2.11E-13 1.66E-13 0.000 ng/dscm 2.29E-04 2.47E-04 1.98E-04 0.000 ng/dscm@7%O2 2.06E-04 2.30E-04 1.81E-04 0.000 

### Compound: 1,2,3,7,8,9-HxCDD Average RunNumber 1 2 3 Mass_mg 0.0000000031 0.0000000036 0.0000000029 0.000 lb/mmBtuO2 2.79E-13 3.46E-13 2.84E-13 0.000 ng/dscm 3.38E-04 4.05E-04 3.38E-04 0.000 ng/dscm@7%O2 3.04E-04 3.77E-04 3.09E-04 0.000 

### Compound: 1,2,3,7,8,9-HxCDF Average RunNumber 1 2 3 Mass_mg 0.0000000026 0.0000000028 0.00000000205 0.000 lb/mmBtuO2 2.34E-13 2.69E-13 2.00E-13 0.000 ng/dscm 2.83E-04 3.15E-04 2.39E-04 0.000 ng/dscm@7%O2 2.55E-04 2.93E-04 2.19E-04 0.000 

### Compound: 1,2,3,7,8-PeCDD Average RunNumber 1 2 3 Mass_mg 0.0000000041 0.0000000047 0.0000000035 0.000 lb/mmBtuO2 3.69E-13 4.52E-13 3.42E-13 0.000 ng/dscm 4.47E-04 5.29E-04 4.08E-04 0.000 ng/dscm@7%O2 4.03E-04 4.93E-04 3.73E-04 0.000 

### Compound: 1,2,3,7,8-PeCDF Average RunNumber 1 2 3 Mass_mg 0.0000000033 0.0000000037 0.0000000033 0.000 lb/mmBtuO2 2.97E-13 3.56E-13 3.23E-13 0.000 ng/dscm 3.59E-04 4.16E-04 3.84E-04 0.000 ng/dscm@7%O2 3.23E-04 3.87E-04 3.51E-04 0.000 

### Compound:2,3,3',4,4',5,5'-HpCB (PCB189) Average RunNumber 1 2 3 Mass_mg 0.0000000086 0.0000000069 0.0000000064 0.000 lb/mmBtuO2 7.75E-13 6.63E-13 6.26E-13 0.000 ng/dscm 9.37E-04 7.76E-04 7.46E-04 0.001 ng/dscm@7%O2 8.44E-04 7.22E-04 6.82E-04 0.001 

### Compound:2,3,3',4,4',5/2,3,3',4,4',5'-HxCB (PC Average RunNumber 1 2 3 Mass_mg 0.000000046 0.0000000382 0.0000000308 0.000 lb/mmBtuO2 4.14E-12 3.67E-12 3.01E-12 0.000 ng/dscm 5.01E-03 4.30E-03 3.59E-03 0.004 ng/dscm@7%O2 4.51E-03 4.00E-03 3.28E-03 0.004



### Saturday, January 22, 2011 Page 6 of 17

### Ray D. Nixon Unit 1
7/23/2010 Compound:2,3,3',4,4'-PeCB (PCB105) Average RunNumber 1 2 3 Mass_mg 0.0000000083 0.0000000162 0.0000000164 0.000 lb/mmBtuO2 7.48E-13 1.56E-12 1.60E-12 0.000 ng/dscm 9.04E-04 1.82E-03 1.91E-03 0.002 ng/dscm@7%O2 8.14E-04 1.69E-03 1.75E-03 0.001 

### Compound:2,3',4,4',5,5'-HxCB (PCB167) Average RunNumber 1 2 3 Mass_mg 0.0000000133 0.0000000118 0.0000000089 0.000 lb/mmBtuO2 1.20E-12 1.13E-12 8.70E-13 0.000 ng/dscm 1.45E-03 1.33E-03 1.04E-03 0.001 ng/dscm@7%O2 1.31E-03 1.24E-03 9.51E-04 0.001 

### Compound:2,3,4,4',5-PeCB (PCB114) Average RunNumber 1 2 3 Mass_mg 0.00000001 0.0000000076 0.0000000075 0.000 lb/mmBtuO2 9.01E-13 7.30E-13 7.33E-13 0.000 ng/dscm 1.09E-03 8.55E-04 8.74E-04 0.001 ng/dscm@7%O2 9.82E-04 7.96E-04 7.99E-04 0.001 

### Compound:2,3',4,4',5-PeCB (PCB118) Average RunNumber 1 2 3 Mass_mg 0.0000000667 0.0000000496 0.000000039 0.000 lb/mmBtuO2 6.01E-12 4.77E-12 3.81E-12 0.000 ng/dscm 7.27E-03 5.58E-03 4.54E-03 0.006 ng/dscm@7%O2 6.55E-03 5.20E-03 4.15E-03 0.005 

### Compound:2',3,4,4',5-PeCB (PCB123) Average RunNumber 1 2 3 Mass_mg 0.000000011 0.0000000082 0.0000000083 0.000 lb/mmBtuO2 9.91E-13 7.88E-13 8.12E-13 0.000 ng/dscm 1.20E-03 9.22E-04 9.67E-04 0.001 ng/dscm@7%O2 1.08E-03 8.58E-04 8.84E-04 0.001 

### Compound:2,3,4,6,7,8-HxCDF Average RunNumber 1 2 3 Mass_mg 0.0000000022 0.0000000024 0.00000000184 0.000 lb/mmBtuO2 1.98E-13 2.31E-13 1.80E-13 0.000 ng/dscm 2.40E-04 2.70E-04 2.14E-04 0.000 ng/dscm@7%O2 2.16E-04 2.51E-04 1.96E-04 0.000 

### Compound:2,3,4,7,8-PeCDF Average RunNumber 1 2 3 Mass_mg 0.0000000034 0.0000000037 0.0000000034 0.000 lb/mmBtuO2 3.06E-13 3.56E-13 3.32E-13 0.000



### Saturday, January 22, 2011 Page 7 of 17

### Ray D. Nixon Unit 1
7/23/2010 ng/dscm 3.70E-04 4.16E-04 3.96E-04 0.000 ng/dscm@7%O2 3.33E-04 3.87E-04 3.62E-04 0.000 

### Compound:2,3,7,8-TCDD Average RunNumber 1 2 3 Mass_mg 0.0000000074 0.0000000086 0.0000000068 0.000 lb/mmBtuO2 6.67E-13 8.26E-13 6.65E-13 0.000 ng/dscm 8.06E-04 9.67E-04 7.92E-04 0.001 ng/dscm@7%O2 7.26E-04 9.00E-04 7.24E-04 0.001 

### Compound:2,3,7,8-TCDF Average RunNumber 1 2 3 Mass_mg 0.0000000047 0.0000000053 0.0000000043 0.000 lb/mmBtuO2 4.23E-13 5.09E-13 4.20E-13 0.000 ng/dscm 5.12E-04 5.96E-04 5.01E-04 0.001 ng/dscm@7%O2 4.61E-04 5.55E-04 4.58E-04 0.000 

### Compound:3,3',4,4',5,5'-HxCB (PCB169) Average RunNumber 1 2 3 Mass_mg 0.0000000132 0.0000000118 0.0000000102 0.000 lb/mmBtuO2 1.19E-12 1.13E-12 9.97E-13 0.000 ng/dscm 1.44E-03 1.33E-03 1.19E-03 0.001 ng/dscm@7%O2 1.30E-03 1.24E-03 1.09E-03 0.001 

### Compound:3,3',4,4',5-PeCB (PCB126) Average RunNumber 1 2 3 Mass_mg 0.0000000105 0.0000000081 0.0000000117 0.000 lb/mmBtuO2 9.46E-13 7.78E-13 1.14E-12 0.000 ng/dscm 1.14E-03 9.11E-04 1.36E-03 0.001 ng/dscm@7%O2 1.03E-03 8.48E-04 1.24E-03 0.001 

### Compound:3,3',4,4'-TCB (PCB77) Average RunNumber 1 2 3 Mass_mg 0.0000000159 0.0000000133 0.000000012 0.000 lb/mmBtuO2 1.43E-12 1.28E-12 1.17E-12 0.000 ng/dscm 1.73E-03 1.50E-03 1.40E-03 0.002 ng/dscm@7%O2 1.56E-03 1.40E-03 1.28E-03 0.001 

### Compound:3,4,4',5-TCB (PCB81) Average RunNumber 1 2 3 Mass_mg 0.0000000158 0.0000000148 0.0000000122 0.000 lb/mmBtuO2 1.42E-12 1.42E-12 1.19E-12 0.000 ng/dscm 1.72E-03 1.66E-03 1.42E-03 0.002 ng/dscm@7%O2 1.55E-03 1.55E-03 1.30E-03 0.001 

### Compound:OCDD Average RunNumber 1 2 3


### Saturday, January 22, 2011 Page 8 of 17

### Ray D. Nixon Unit 1
7/23/2010 Mass_mg 0.000000082 0.000000046 0.000000098 0.000 lb/mmBtuO2 7.39E-12 4.42E-12 9.58E-12 0.000 ng/dscm 8.93E-03 5.17E-03 1.14E-02 0.009 ng/dscm@7%O2 8.04E-03 4.81E-03 1.04E-02 0.008 

### Compound:OCDF Average RunNumber 1 2 3 Mass_mg 0.0000000042 0.0000000046 0.000000004 0.000 lb/mmBtuO2 3.78E-13 4.42E-13 3.91E-13 0.000 ng/dscm 4.58E-04 5.17E-04 4.66E-04 0.000 ng/dscm@7%O2 4.13E-04 4.81E-04 4.26E-04 0.000 

### Compound:Other HpCDD Average RunNumber 1 2 3 Mass_mg 0.000000011 0.0000000093 0.0000000167 0.000 lb/mmBtuO2 9.91E-13 8.94E-13 1.63E-12 0.000 ng/dscm 1.20E-03 1.05E-03 1.95E-03 0.001 ng/dscm@7%O2 1.08E-03 9.78E-04 1.78E-03 0.001 

### Compound:Other HpCDF Average RunNumber 1 2 3 Mass_mg 0.0000000036 0.0000000036 0.0000000029 0.000 lb/mmBtuO2 3.24E-13 3.46E-13 2.84E-13 0.000 ng/dscm 3.92E-04 4.05E-04 3.38E-04 0.000 ng/dscm@7%O2 3.53E-04 3.77E-04 3.09E-04 0.000 

### Compound:Other HxCDD Average RunNumber 1 2 3 Mass_mg 0.0000000137 0.0000000055 0.0000000134 0.000 lb/mmBtuO2 1.23E-12 5.29E-13 1.31E-12 0.000 ng/dscm 1.49E-03 6.19E-04 1.56E-03 0.001 ng/dscm@7%O2 1.34E-03 5.76E-04 1.43E-03 0.001 

### Compound:Other HxCDF Average RunNumber 1 2 3 Mass_mg 0.0000000056 0.0000000022 0.0000000042 0.000 lb/mmBtuO2 5.04E-13 2.11E-13 4.11E-13 0.000 ng/dscm 6.10E-04 2.47E-04 4.89E-04 0.000 ng/dscm@7%O2 5.50E-04 2.30E-04 4.47E-04 0.000 

### Compound:Other PeCDD Average RunNumber 1 2 3 Mass_mg 0.0000000133 0.0000000104 0.0000000143 0.000 lb/mmBtuO2 1.20E-12 9.99E-13 1.40E-12 0.000 ng/dscm 1.45E-03 1.17E-03 1.67E-03 0.001 ng/dscm@7%O2 1.31E-03 1.09E-03 1.53E-03 0.001



### Saturday, January 22, 2011 Page 9 of 17

### Ray D. Nixon Unit 1
7/23/2010 Compound:Other PeCDF Average RunNumber 1 2 3 Mass_mg 0.0000000067 0.0000000071 0.000000005 0.000 lb/mmBtuO2 6.03E-13 6.82E-13 4.89E-13 0.000 ng/dscm 7.30E-04 7.98E-04 5.82E-04 0.001 ng/dscm@7%O2 6.58E-04 7.43E-04 5.32E-04 0.001 

### Compound:Other TCDD Average RunNumber 1 2 3 Mass_mg 0.0000000071 0.0000000086 0.0000000063 0.000 lb/mmBtuO2 6.40E-13 8.26E-13 6.16E-13 0.000 ng/dscm 7.73E-04 9.67E-04 7.34E-04 0.001 ng/dscm@7%O2 6.96E-04 9.00E-04 6.71E-04 0.001 

### Compound:Other TCDF Average RunNumber 1 2 3 Mass_mg 0.0000000047 0.0000000053 0.0000000013 0.000 lb/mmBtuO2 4.23E-13 5.09E-13 1.27E-13 0.000 ng/dscm 5.12E-04 5.96E-04 1.51E-04 0.000 ng/dscm@7%O2 4.61E-04 5.55E-04 1.38E-04 0.000 

### Compound:Total Dioxins Average RunNumber 1 2 3 Mass_mg 0.0000001689 0.000000108 0.000000193 0.000 lb/mmBtuO2 1.52E-11 1.04E-11 1.89E-11 0.000 ng/dscm 1.84E-02 1.21E-02 2.25E-02 0.018 ng/dscm@7%O2 1.66E-02 1.13E-02 2.06E-02 0.016 

### Compound:Total Furans Average RunNumber 1 2 3 Mass_mg 0.0000000341 0.0000000327 0.000000031 0.000 lb/mmBtuO2 3.07E-12 3.14E-12 3.03E-12 0.000 ng/dscm 3.71E-03 3.68E-03 3.61E-03 0.004 ng/dscm@7%O2 3.34E-03 3.43E-03 3.30E-03 0.003 

### Compound:Total PCBs Average RunNumber 1 2 3 Mass_mg 0.000000122 0.000000165 0.000000163 0.000 lb/mmBtuO2 1.10E-11 1.59E-11 1.59E-11 0.000 ng/dscm 1.33E-02 1.86E-02 1.90E-02 0.017 ng/dscm@7%O2 1.20E-02 1.73E-02 1.74E-02 0.016 

### Compound:Total TEQ Average RunNumber 1 2 3 Mass_mg 0.0000000155 0.000000017 0.0000000144 0.000 lb/mmBtuO2 1.40E-12 1.63E-12 1.41E-12 0.000



### Saturday, January 22, 2011 Page 10 of 17

### Ray D. Nixon Unit 1
7/23/2010

Process Run Data ng/dscm 1.69E-03 1.91E-03 1.68E-03 0.002 ng/dscm@7%O2 1.52E-03 1.78E-03 1.54E-03 0.002



### Saturday, January 22, 2011 Page 11 of 17

### Ray D. Nixon Unit 1
7/23/2010 Process Run Data



### Run Name Value UOM Comments Target Value 1 Coal Burned 0.1381000 Tons/hr Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 0.106

1 Average Heat Input 2255.3MMBtu/hr Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 2200

1 Steam Output 14051000 lb steam/hr Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 1400



### 1 Flue Gas Flow Rate 549098 scfm Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 520000

1 Flue Gas Carbon Dioxide Content 12.6 % Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 12.7

Saturday, January 22, 2011 Page 12 of 17

### Ray D. Nixon Unit 1
7/23/2010 1 Flue Gas Sampling Point Temperature 324.45 Deg F Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 325

1 Unit Gross Electrical Output 221 Mwe Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 220



### 1 Unit Net Electric Generation 204 MWh Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 200

2Coal Burned 0.121000 Tons/hr Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 0.106

2Average Heat Input 2139.4MMBtu/hr Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 2200

Saturday, January 22, 2011 Page 13 of 17

### Ray D. Nixon Unit 1
7/23/2010 2Steam Output 13451000 lb steam/hr Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 1400

2Flue Gas Flow Rate 521473 scfm Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 520000



### 2Flue Gas Carbon Dioxide Content 12.6 % Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 12.7

2Flue Gas Sampling Point Temperature 323.67 Deg F Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 325

2Unit Gross Electrical Output 211 Mwe Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 220

Saturday, January 22, 2011 Page 14 of 17

### Ray D. Nixon Unit 1
7/23/2010 2Unit Net Electric Generation 196 MWh Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 200

3 Coal Burned 0.1081000 Tons/hr Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 0.106



### 3Average Heat Input 2125.5MMBtu/hr Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 2200

3 Steam Output 13071000 lb steam/hr Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 1400

3Flue Gas Flow Rate 506975 scfm Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 520000

Saturday, January 22, 2011 Page 15 of 17

### Ray D. Nixon Unit 1
7/23/2010

APCD Run Data

Process Lab Run Data 3Flue Gas Carbon Dioxide Content 12.8 % Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 12.7

3Flue Gas Sampling Point Temperature 325.49 Deg F Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 325



### 3Unit Gross Electrical Output 209 Mwe Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 220

3Unit Net Electric Generation 191 MWh Process Data is presented as an average over a 24 hour period. This value may differ slightly from the average value during each test
run. 200

Run Name Value UOM Comments Target Value 

### 1 BAGHOUSE 0 0

Saturday, January 22, 2011 Page 16 of 17

### Ray D. Nixon Unit 1
7/23/2010 Sampling / Stack Data Results Detail


### LocationStack Exit - Method 23 Average Run Number 1 2 3 Test Date 5/25/2010 5/26/2010 5/27/2010 Run Start Time 7:28:00 AM7:06:00 AM7:26:00 AM Run Finish Time 4:06:00 PM3:45:00 PM3:47:00 PM Net Traversing Points 16 16 16 Net Run Time, minutes 480 480 480 Nozzle Diameter, inches 0.263 0.263 0.263 0.263 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 1.0163 1.0163 1.0163 1.016 Barometric Pressure, inches of Mercury 24.5 24.3 24.35 24.383 Average Orifice Meter Differential, inches H2O 1.79 1.71 1.58 1.693 Dry Gas Meter Volume Sampled, cubic feet 394.970 384.540 374.540 384.683 Average Dry Gas Meter Temperature, °F 78.14 76.36 82.06 78.853 Dry Gas Meter Volume Sampled, dscf 324.232 314.070 303.187 313.830 Total Moisture Liquid collected, g 789 809 819 805.667 Volume of Water Vapor, standard cubic feet 37.14 38.08 38.55 37.923 Moisture Content of Stack Gas, % 10.28 10.81 11.28 10.790 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Dry Mole Fraction 0.8972 0.8919 0.8872 0.892 Carbon Dioxide, % 13.9 13.1 13.5 13.500 Oxygen, % 5.47 5.97 5.7 5.713 Carbon Monoxide & Nitrogen, % 80.63 80.93 80.8 80.787 Fuel Factor 1.11 1.14 1.13 Dry Molecular Weight, lb/lb-Mole 30.44 30.33 30.39 30.387 Wet Molecular weight, lb/lb-Mole 29.16 29.00 28.99 29.050 Flue Gas Static Pressure, inches of H2O -0.2 -0.4 -0.3 -0.300 Absolute Flue Gas Pressure, inches of Mercury 24.49 24.27 24.33 24.363 Average Stack Gas Temperature, °F 330.38 331.97 336.38 332.910 Average Velocity Head, inches of H2O 0.5904250766 83840.579745617

4289370.559316801

36159 0.576
Average Stack Gas Velocity, feet/second 58.05 58.00 57.07 57.707 Stack Cross-Sectional Area, square feet 318.099 318.099 318.099 318.099 Dry Volumetric Flow Rate, dry scfm 543,538.4 533,938.3 520,999.2532,825.300 Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,107,938.81,106,984.5 1,089,234.61,101,385.9 67 Percent Isokinetic of Sampling Rate, % 104.8 103.3 102.2 103.433 Percent Excess Air, % 34.6 38.8 36.5 36.633 F-Factor, dscfm/MMBtu @ %O2 9780 9780 97809,780.000 Round Duct Diameter, inches 241.5 241.5 241.5 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



### Saturday, January 22, 2011 Page 17 of 17