### Name: C.D. Holley

Title: Vice President F&H System Operation Company: Dominion Generation Sign Date: 9/1/2010 Name: Michael P. Martin Title: Senior Project Manager Company:TRC Companies, Inc. Sign Date: 8/19/2010 Permitted Facility Representative / Date Testing Company Representative / Date



## Utility Boiler MACT ICR - Chesterfield Power Station Unit 6 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.

Wednesday, January 12, 2011 Page 1 of 13

### Utility Boiler MACT ICR - Chesterfield Power Station Unit 6 9/1/2010 Facility Information: Chesterfield 615 Coxendale Road

Chester VA23836 Contact:David Nuckols Phone:804-796-6021 Fax: 804-796-6004 Email:david.nuckols@dom.com Testing Company: TRC Companies, Inc. 650 Suffolk Street

Lowell MA01854 Contact:Michael P. Martin Phone:978-656-3550 Fax: 978-453-4215 Email:mmartin@trcsolutions.com

Air Permit Number: 3797 Permitted Source ID/Name: 6 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: 7200 mmBtu/hr dry bottom, tangentially fired, pulverized coal boiler w/ LNB 2/ overfire air, SCR, wet limestone FGD, & baghouse. Industry/SCC/NAIS221112

Sampling Location Information:

Test Parameter Information: AFS #:5104100002 FRS #:110000342530

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 348 2814 910.8 4 0 6 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 1,2,3,4,6,7,8-HpCDD Method 23 3 480 0 Stack Exit OCDD Method 23 3 480 0 Stack Exit



### Wednesday, January 12, 2011 Page 2 of 13

### Utility Boiler MACT ICR - Chesterfield Power Station Unit 6 9/1/2010

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.

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



### Wednesday, January 12, 2011 Page 3 of 13

### Utility Boiler MACT ICR - Chesterfield Power Station Unit 6 9/1/2010 Sampling / Stack Data Results Summary 

### LocationStack Exit - Method 23 Average Run Number 1 2 3 Test Date 4/13/20104/14/2010 4/15/2010 Run Start Time Run Finish Time Net Run Time, minutes 480 480 480 Dry Gas Meter Volume Sampled, dscf 334.000 336.236 337.172 335.803 Moisture Content of Stack Gas, % 13.90 13.87 13.85 13.873 Moisture Saturation at Stack Gas Temperature, % 13.81 13.70 13.65 13.720 Carbon Dioxide, % 12.8 13.6 13.7 13.367 Oxygen, % 6.2 5.6 5.8 5.867 Average Stack Gas Temperature, °F 126.79 126.81 126.55 126.717 Dry Volumetric Flow Rate, dry scfm 1,557,040.11,562,411.7 1,566,604.51,562,018.76 7 Actual Wet Volumetric Flue Gas Flow Rate, acfm 2,000,979.31,989,486.21,999,394.01,996,619.83 3 Percent Isokinetic of Sampling Rate, % 100.6 100.9 100.9 100.800 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



### Wednesday, January 12, 2011 Page 4 of 13

### Utility Boiler MACT ICR - Chesterfield Power Station Unit 6 9/1/2010 Emissions Summary 

### Location: Stack Exit - Method 23 Compound: 1,2,3,4,6,7,8-HpCDD Average RunNumber 1 2 3 Mass_mg 0.0000000022 0.0000000027 0.0000000033 0.000 lb/mmBtuO2 2.02E-13 2.37E-13 2.92E-13 0.000 ng/dscm 2.33E-04 2.84E-04 3.46E-04 0.000 ng/dscm@7%O2 2.20E-04 2.58E-04 3.19E-04 0.000 

### Compound: 1,2,3,4,6,7,8-HpCDF Average RunNumber 1 2 3 Mass_mg 0.0000000037 0.0000000033 0.0000000017 0.000 lb/mmBtuO2 3.40E-13 2.89E-13 1.50E-13 0.000 ng/dscm 3.91E-04 3.47E-04 1.78E-04 0.000 ng/dscm@7%O2 3.70E-04 3.15E-04 1.64E-04 0.000 

### Compound: 1,2,3,4,7,8,9-HpCDF Average RunNumber 1 2 3 Mass_mg 0.0000000021 0.0000000042 0.0000000022 0.000 lb/mmBtuO2 1.93E-13 3.68E-13 1.95E-13 0.000 ng/dscm 2.22E-04 4.41E-04 2.30E-04 0.000 ng/dscm@7%O2 2.10E-04 4.01E-04 2.12E-04 0.000 

### Compound: 1,2,3,4,7,8-HxCDD Average RunNumber 1 2 3 Mass_mg 0.0000000016 0.0000000042 0.000000002 0.000 lb/mmBtuO2 1.47E-13 3.68E-13 1.77E-13 0.000 ng/dscm 1.69E-04 4.41E-04 2.10E-04 0.000 ng/dscm@7%O2 1.60E-04 4.01E-04 1.93E-04 0.000 

### Compound: 1,2,3,4,7,8-HxCDF Average RunNumber 1 2 3 Mass_mg 0.0000000025 0.0000000024 0.0000000018 0.000 lb/mmBtuO2 2.29E-13 2.10E-13 1.59E-13 0.000 ng/dscm 2.64E-04 2.52E-04 1.89E-04 0.000 ng/dscm@7%O2 2.50E-04 2.29E-04 1.74E-04 0.000 

### Compound: 1,2,3,6,7,8-HxCDD Average RunNumber 1 2 3 Mass_mg 0.0000000016 0.0000000041 0.00000000331 0.000 lb/mmBtuO2 1.47E-13 3.59E-13 2.93E-13 0.000 ng/dscm 1.69E-04 4.31E-04 3.47E-04 0.000 ng/dscm@7%O2 1.60E-04 3.92E-04 3.19E-04 0.000 

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



### Wednesday, January 12, 2011 Page 5 of 13

### Utility Boiler MACT ICR - Chesterfield Power Station Unit 6 9/1/2010 RunNumber 1 2 3 Mass_mg 0.0000000023 0.0000000023 0.0000000017 0.000 lb/mmBtuO2 2.11E-13 2.01E-13 1.50E-13 0.000 ng/dscm 2.43E-04 2.42E-04 1.78E-04 0.000 ng/dscm@7%O2 2.30E-04 2.20E-04 1.64E-04 0.000 

### Compound: 1,2,3,7,8,9-HxCDD Average RunNumber 1 2 3 Mass_mg 0.0000000016 0.0000000014 0.000000002 0.000 lb/mmBtuO2 1.47E-13 1.23E-13 1.77E-13 0.000 ng/dscm 1.69E-04 1.47E-04 2.10E-04 0.000 ng/dscm@7%O2 1.60E-04 1.34E-04 1.93E-04 0.000 

### Compound: 1,2,3,7,8,9-HxCDF Average RunNumber 1 2 3 Mass_mg 0.0000000026 0.0000000026 0.0000000019 0.000 lb/mmBtuO2 2.39E-13 2.28E-13 1.68E-13 0.000 ng/dscm 2.75E-04 2.73E-04 1.99E-04 0.000 ng/dscm@7%O2 2.60E-04 2.48E-04 1.83E-04 0.000 

### Compound: 1,2,3,7,8-PeCDD Average RunNumber 1 2 3 Mass_mg 0.0000000018 0.0000000032 0.0000000038 0.000 lb/mmBtuO2 1.65E-13 2.80E-13 3.36E-13 0.000 ng/dscm 1.90E-04 3.36E-04 3.98E-04 0.000 ng/dscm@7%O2 1.80E-04 3.05E-04 3.66E-04 0.000 

### Compound: 1,2,3,7,8-PeCDF Average RunNumber 1 2 3 Mass_mg 0.0000000021 0.0000000033 0.000000002 0.000 lb/mmBtuO2 1.93E-13 2.89E-13 1.77E-13 0.000 ng/dscm 2.22E-04 3.47E-04 2.10E-04 0.000 ng/dscm@7%O2 2.10E-04 3.15E-04 1.93E-04 0.000 

### Compound:2,3,3',4,4',5,5'-HpCB (PCB189) Average RunNumber 1 2 3 Mass_mg 0.0000000031 0.0000000015 0.00000000085 0.000 lb/mmBtuO2 2.85E-13 1.31E-13 7.52E-14 0.000 ng/dscm 3.28E-04 1.58E-04 8.90E-05 0.000 ng/dscm@7%O2 3.10E-04 1.44E-04 8.19E-05 0.000 

### Compound:2,3,3',4,4',5/2,3,3',4,4',5'-HxCB (PC Average RunNumber 1 2 3 Mass_mg 0.0000000381 0.0000000132 0.0000000097 0.000 lb/mmBtuO2 3.50E-12 1.16E-12 8.59E-13 0.000 ng/dscm 4.03E-03 1.39E-03 1.02E-03 0.002 ng/dscm@7%O2 3.81E-03 1.26E-03 9.39E-04 0.002



### Wednesday, January 12, 2011 Page 6 of 13

### Utility Boiler MACT ICR - Chesterfield Power Station Unit 6 9/1/2010 Compound:2,3,3',4,4'-PeCB (PCB105) Average RunNumber 1 2 3 Mass_mg 0.000000188 0.0000000865 0.0000000589 0.000 lb/mmBtuO2 1.73E-11 7.58E-12 5.21E-12 0.000 ng/dscm 1.99E-02 9.09E-03 6.17E-03 0.012 ng/dscm@7%O2 1.88E-02 8.26E-03 5.68E-03 0.011 

### Compound:2,3',4,4',5,5'-HxCB (PCB167) Average RunNumber 1 2 3 Mass_mg 0.000000028 0.0000000057 0.0000000068 0.000 lb/mmBtuO2 2.57E-12 4.99E-13 6.02E-13 0.000 ng/dscm 2.96E-03 5.99E-04 7.12E-04 0.001 ng/dscm@7%O2 2.80E-03 5.44E-04 6.55E-04 0.001 

### Compound:2,3,4,4',5-PeCB (PCB114) Average RunNumber 1 2 3 Mass_mg 0.0000000105 0.0000000027 0.0000000039 0.000 lb/mmBtuO2 9.64E-13 2.37E-13 3.45E-13 0.000 ng/dscm 1.11E-03 2.84E-04 4.09E-04 0.001 ng/dscm@7%O2 1.05E-03 2.58E-04 3.76E-04 0.001 

### Compound:2,3',4,4',5-PeCB (PCB118) Average RunNumber 1 2 3 Mass_mg 0.000000489 0.000000219 0.000000162 0.000 lb/mmBtuO2 4.49E-11 1.92E-11 1.43E-11 0.000 ng/dscm 5.17E-02 2.30E-02 1.70E-02 0.031 ng/dscm@7%O2 4.89E-02 2.09E-02 1.56E-02 0.028 

### Compound:2',3,4,4',5-PeCB (PCB123) Average RunNumber 1 2 3 Mass_mg 0.000000012 0.0000000025 0.0000000039 0.000 lb/mmBtuO2 1.10E-12 2.19E-13 3.45E-13 0.000 ng/dscm 1.27E-03 2.63E-04 4.09E-04 0.001 ng/dscm@7%O2 1.20E-03 2.39E-04 3.76E-04 0.001 

### Compound:2,3,4,6,7,8-HxCDF Average RunNumber 1 2 3 Mass_mg 0.0000000023 0.0000000023 0.0000000017 0.000 lb/mmBtuO2 2.11E-13 2.01E-13 1.50E-13 0.000 ng/dscm 2.43E-04 2.42E-04 1.78E-04 0.000 ng/dscm@7%O2 2.30E-04 2.20E-04 1.64E-04 0.000 

### Compound:2,3,4,7,8-PeCDF Average RunNumber 1 2 3 Mass_mg 0.000000002 0.000000003 0.0000000019 0.000 lb/mmBtuO2 1.84E-13 2.63E-13 1.68E-13 0.000



### Wednesday, January 12, 2011 Page 7 of 13

### Utility Boiler MACT ICR - Chesterfield Power Station Unit 6 9/1/2010 ng/dscm 2.11E-04 3.15E-04 1.99E-04 0.000 ng/dscm@7%O2 2.00E-04 2.86E-04 1.83E-04 0.000 

### Compound:2,3,7,8-TCDD Average RunNumber 1 2 3 Mass_mg 0.0000000019 0.0000000034 0.0000000033 0.000 lb/mmBtuO2 1.74E-13 2.98E-13 2.92E-13 0.000 ng/dscm 2.01E-04 3.57E-04 3.46E-04 0.000 ng/dscm@7%O2 1.90E-04 3.24E-04 3.19E-04 0.000 

### Compound:2,3,7,8-TCDF Average RunNumber 1 2 3 Mass_mg 0.0000000012 0.0000000024 0.0000000018 0.000 lb/mmBtuO2 1.10E-13 2.10E-13 1.59E-13 0.000 ng/dscm 1.27E-04 2.52E-04 1.89E-04 0.000 ng/dscm@7%O2 1.20E-04 2.29E-04 1.74E-04 0.000 

### Compound:3,3',4,4',5,5'-HxCB (PCB169) Average RunNumber 1 2 3 Mass_mg 0.00000000088 0.00000000038 0.0000000013 0.000 lb/mmBtuO2 8.08E-14 3.33E-14 1.15E-13 0.000 ng/dscm 9.31E-05 3.99E-05 1.36E-04 0.000 ng/dscm@7%O2 8.80E-05 3.62E-05 1.25E-04 0.000 

### Compound:3,3',4,4',5-PeCB (PCB126) Average RunNumber 1 2 3 Mass_mg 0.0000000066 0.0000000026 0.0000000035 0.000 lb/mmBtuO2 6.06E-13 2.28E-13 3.10E-13 0.000 ng/dscm 6.98E-04 2.73E-04 3.67E-04 0.000 ng/dscm@7%O2 6.60E-04 2.48E-04 3.38E-04 0.000 

### Compound:3,3',4,4'-TCB (PCB77) Average RunNumber 1 2 3 Mass_mg 0.000000201 0.0000000629 0.0000000713 0.000 lb/mmBtuO2 1.84E-11 5.51E-12 6.31E-12 0.000 ng/dscm 2.13E-02 6.61E-03 7.47E-03 0.012 ng/dscm@7%O2 2.01E-02 6.01E-03 6.88E-03 0.011 

### Compound:3,4,4',5-TCB (PCB81) Average RunNumber 1 2 3 Mass_mg 0.00000000772 0.0000000028 0.000000002 0.000 lb/mmBtuO2 7.09E-13 2.45E-13 1.77E-13 0.000 ng/dscm 8.16E-04 2.94E-04 2.10E-04 0.000 ng/dscm@7%O2 7.72E-04 2.67E-04 1.93E-04 0.000 

### Compound:OCDD Average RunNumber 1 2 3 

### Wednesday, January 12, 2011 Page 8 of 13

### Utility Boiler MACT ICR - Chesterfield Power Station Unit 6 9/1/2010 Mass_mg 0.000000012 0.000000008 0.0000000091 0.000 lb/mmBtuO2 1.10E-12 7.01E-13 8.05E-13 0.000 ng/dscm 1.27E-03 8.40E-04 9.53E-04 0.001 ng/dscm@7%O2 1.20E-03 7.63E-04 8.77E-04 0.001 

### Compound:OCDF Average RunNumber 1 2 3 Mass_mg 0.0000000015 0.0000000027 0.0000000014 0.000 lb/mmBtuO2 1.38E-13 2.37E-13 1.24E-13 0.000 ng/dscm 1.59E-04 2.84E-04 1.47E-04 0.000 ng/dscm@7%O2 1.50E-04 2.58E-04 1.35E-04 0.000 

### Compound:Other HpCDD Average RunNumber 1 2 3 Mass_mg 0 0 0 0.000 lb/mmBtuO2 0.00E+00 0.00E+00 0.00E+00 0.000 ng/dscm 0.00E+00 0.00E+00 0.00E+00 0.000 ng/dscm@7%O2 0.00E+00 0.00E+00 0.00E+00 0.000 

### Compound:Other HpCDF Average RunNumber 1 2 3 Mass_mg 0 0 0 0.000 lb/mmBtuO2 0.00E+00 0.00E+00 0.00E+00 0.000 ng/dscm 0.00E+00 0.00E+00 0.00E+00 0.000 ng/dscm@7%O2 0.00E+00 0.00E+00 0.00E+00 0.000 

### Compound:Other HxCDD Average RunNumber 1 2 3 Mass_mg 0 0.00000000913 0.00000000839 0.000 lb/mmBtuO2 0.00E+00 8.00E-13 7.43E-13 0.000 ng/dscm 0.00E+00 9.59E-04 8.79E-04 0.001 ng/dscm@7%O2 0.00E+00 8.71E-04 8.09E-04 0.001 

### Compound:Other HxCDF Average RunNumber 1 2 3 Mass_mg 0 0 0 0.000 lb/mmBtuO2 0.00E+00 0.00E+00 0.00E+00 0.000 ng/dscm 0.00E+00 0.00E+00 0.00E+00 0.000 ng/dscm@7%O2 0.00E+00 0.00E+00 0.00E+00 0.000 

### Compound:Other PeCDD Average RunNumber 1 2 3 Mass_mg 0.0000000153 0.00000000594 0.00000000496 0.000 lb/mmBtuO2 1.40E-12 5.20E-13 4.39E-13 0.000 ng/dscm 1.62E-03 6.24E-04 5.20E-04 0.001 ng/dscm@7%O2 1.53E-03 5.67E-04 4.79E-04 0.001



### Wednesday, January 12, 2011 Page 9 of 13

### Utility Boiler MACT ICR - Chesterfield Power Station Unit 6 9/1/2010

Process Run Data Compound:Other PeCDF Average RunNumber 1 2 3 Mass_mg 0 0 0 0.000 lb/mmBtuO2 0.00E+00 0.00E+00 0.00E+00 0.000 ng/dscm 0.00E+00 0.00E+00 0.00E+00 0.000 ng/dscm@7%O2 0.00E+00 0.00E+00 0.00E+00 0.000 

### Compound:Other TCDD Average RunNumber 1 2 3 Mass_mg 0 0 0 0.000 lb/mmBtuO2 0.00E+00 0.00E+00 0.00E+00 0.000 ng/dscm 0.00E+00 0.00E+00 0.00E+00 0.000 ng/dscm@7%O2 0.00E+00 0.00E+00 0.00E+00 0.000 

### Compound:Other TCDF Average RunNumber 1 2 3 Mass_mg 0 0 0 0.000 lb/mmBtuO2 0.00E+00 0.00E+00 0.00E+00 0.000 ng/dscm 0.00E+00 0.00E+00 0.00E+00 0.000 ng/dscm@7%O2 0.00E+00 0.00E+00 0.00E+00 0.000 

### Compound:Total Dioxins Average RunNumber 1 2 3 Mass_mg 0.000000038 0.00000004207 0.00000004016 0.000 lb/mmBtuO2 3.49E-12 3.69E-12 3.55E-12 0.000 ng/dscm 4.02E-03 4.42E-03 4.21E-03 0.004 ng/dscm@7%O2 3.80E-03 4.02E-03 3.88E-03 0.004 

### Compound:Total Furans Average RunNumber 1 2 3 Mass_mg 0.0000000223 0.0000000285 0.0000000181 0.000 lb/mmBtuO2 2.05E-12 2.50E-12 1.60E-12 0.000 ng/dscm 2.36E-03 2.99E-03 1.90E-03 0.002 ng/dscm@7%O2 2.23E-03 2.72E-03 1.75E-03 0.002



### Wednesday, January 12, 2011 Page 10 of 13

### Utility Boiler MACT ICR - Chesterfield Power Station Unit 6 9/1/2010 Process Run Data



### Run Name Value UOM Comments Target Value 1 Heat Input 6467Million Btus/hr 0 

### 1 Limestone Injection Rate 93263 lb/hr 0 1 Steam Output 4723.81000 lb steam/hr 0 1 Fuel Oil Firing Rate 0 gal/hr 0 

### 1 Flue Gas Flow Rate 2E+06 dscfm 0 1 Pressure Drop Across FGD 5.41 in H20 0 1 Unit Net Electric Generation 674.7 MWh 0 

### 1 Flue Gas Oxygen Content 3.72 % 0 1 Flue Gas Carbon Dioxide Content 12.51 % 0 1 Coal Firing Rate 161.86 tons/hr 0 

### 1 Unit Gross Electrical Output 703.85 Mwe 0 1 Flue Gas Sampling Point Temperature 130 Deg F 0 2Heat Input 6437.9Million Btus/hr 0 

### 2Limestone Injection Rate 88722 lb/hr 0 2Steam Output 4762.31000 lb steam/hr 0 2Fuel Oil Firing Rate 0 gal/hr 0 

### 2Flue Gas Flow Rate 2E+06 dscfm 0 2Pressure Drop Across FGD 5.27 in H20 0 2Unit Net Electric Generation 679.68 MWh 0 

### 2Flue Gas Oxygen Content 3.72 % 0 2Flue Gas Carbon Dioxide Content 12.51 % 0 2Coal Firing Rate 160.22 tons/hr 0 

### 2Unit Gross Electrical Output 708.99 Mwe 0 2Flue Gas Sampling Point Temperature 130.2 Deg F 0 

### 3Heat Input 6390.0Million Btus/hr 0 3Limestone Injection Rate 87032 lb/hr 0 3 Steam Output 4696.31000 lb steam/hr 0 

### 3Fuel Oil Firing Rate 0 gal/hr 0 3Flue Gas Flow Rate 2E+06 dscfm 0 3Pressure Drop Across FGD 5.39 in H20 0 

### 3Unit Net Electric Generation 670.53 MWh 0 3Flue Gas Oxygen Content 3.69 % 0 3Flue Gas Carbon Dioxide Content 12.51 % 0



### Wednesday, January 12, 2011 Page 11 of 13

### Utility Boiler MACT ICR - Chesterfield Power Station Unit 6 9/1/2010

APCD Run Data

Process Lab Run Data 3 Coal Firing Rate 154 tons/hr 0 

### 3Unit Gross Electrical Output 700.04 Mwe 0 3Flue Gas Sampling Point Temperature 129.75 Deg F 0



### Run Name Value UOM Comments Target Value 1 OVERFIRE AIR 0 0 

### 1 LOW NOX BURNERS 0 0 1 SCR (SELECTIVE CATALYTIC REDUCTION) 0 0 

### 1 WET SCRUBBER 0 0 1 BAGHOUSE 0 0

Wednesday, January 12, 2011 Page 12 of 13

### Utility Boiler MACT ICR - Chesterfield Power Station Unit 6 9/1/2010 Sampling / Stack Data Results Detail 

### LocationStack Exit - Method 23 Average Run Number 1 2 3 Test Date 4/13/2010 4/14/2010 4/15/2010 Run Start Time Run Finish Time Net Traversing Points 96 96 96 Net Run Time, minutes 480 480 480 Nozzle Diameter, inches 0.232 0.232 0.232 0.232 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 0.9942 0.9942 0.9942 0.994 Barometric Pressure, inches of Mercury 30.07 30.3 30.2 30.190 Average Orifice Meter Differential, inches H2O 1.75 1.74 1.77 1.753 Dry Gas Meter Volume Sampled, cubic feet 345.343 342.963 346.801 345.036 Average Dry Gas Meter Temperature, °F 87.82 84.53 87.33 86.560 Dry Gas Meter Volume Sampled, dscf 334.000 336.236 337.172 335.803 Total Moisture Liquid collected, g 1145.9 1150 1151.71,149.200 Volume of Water Vapor, standard cubic feet 53.94 54.13 54.21 54.093 Moisture Content of Stack Gas, % 13.90 13.87 13.85 13.873 Moisture Saturation at Stack Gas Temperature, % 13.81 13.70 13.65 13.720 Dry Mole Fraction 0.8619 0.863 0.8635 0.863 Carbon Dioxide, % 12.8 13.6 13.7 13.367 Oxygen, % 6.2 5.6 5.8 5.867 Carbon Monoxide & Nitrogen, % 81 80.8 80.5 80.767 Fuel Factor 1.15 1.13 1.10 Dry Molecular Weight, lb/lb-Mole 30.30 30.40 30.42 30.373 Wet Molecular weight, lb/lb-Mole 28.62 28.73 28.76 28.703 Flue Gas Static Pressure, inches of H2O -0.65 -0.61 -0.59 -0.617 Absolute Flue Gas Pressure, inches of Mercury 30.02 30.26 30.16 30.147 Average Stack Gas Temperature, °F 126.79 126.81 126.55 126.717 Average Velocity Head, inches of H2O 0.7237973650 78860.724086077

0023240.729738062

993447 0.726 Average Stack Gas Velocity, feet/second 50.49 50.20 50.45 50.380 Stack Cross-Sectional Area, square feet 660.520 660.520 660.520 660.520 Dry Volumetric Flow Rate, dry scfm 1,557,040.11,562,411.71,566,604.51,562,018.7 67 Actual Wet Volumetric Flue Gas Flow Rate, acfm 2,000,979.31,989,486.21,999,394.01,996,619.8 33 Percent Isokinetic of Sampling Rate, % 100.6 100.9 100.9 100.800 Percent Excess Air, % 40.8 35.6 37.5 37.967 F-Factor, dscfm/MMBtu @ %O2 9780 9780 97809,780.000 Round Duct Diameter, inches 348 348 348 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



### Wednesday, January 12, 2011 Page 13 of 13