### Name: William M. Swahl

Title: General Manager Company: Exelon Generation Company, LLC Sign Date: Name: Ken Hill Title: Project Manager Company: Weston Solutions, Inc. Sign Date: Permitted Facility Representative / Date Testing Company Representative / Date 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 25, 2011 Page 1 of 25

### Facility Information:

Cromby Generating Station 100 Cromby Rd

Phoenixville PA 19460 Contact: Cheri Peifer
Phone: 610-983-4708
Fax:
Email: cheri.peifer@exeloncorp.com Testing Company:
Weston Solutions 1400 Weston Way

West Chester PA 19380 Contact: Ken Hill
Phone: 610-701-3043
Fax:
Email: k.hill@westonsolutions.com

Air Permit Number: 3159 Permitted Source ID/Name: Cromby Generating Station Unit 2 2
Permitted Maximum Process Rate: Max. Normal Operation Process Rate: Target Process Test Rate

Description of the source (including control equipment). Please see the attachments for source or process flow diagram: See Attached Report Industry/SCC/NAIS

Sampling Location Information:

Test Parameter Information: AFS #: FRS #:

SCC / Description

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 168 1680 1284 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 0 Stack 2,3,7,8-TCDD Method 23 3 0 Stack 1,2,3,7,8-PeCDD Method 23 3 0 Stack 1,2,3,4,7,8-HxCDD Method 23 3 0 Stack 1,2,3,6,7,8-HxCDD Method 23 3 0 Stack 1,2,3,7,8,9-HxCDD Method 23 3 0 Stack 1,2,3,4,6,7,8-HpCDD Method 23 3 0 Stack OCDD Method 23 3 0 Stack



### Friday, February 25, 2011 Page 2 of 25

### 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. See Attached Report

2,3,7,8-TCDF Method 23 3 0 Stack 1,2,3,7,8-PeCDF Method 23 3 0 Stack 2,3,4,7,8-PeCDF Method 23 3 0 Stack 1,2,3,4,7,8-HxCDF Method 23 3 0 Stack 1,2,3,6,7,8-HxCDF Method 23 3 0 Stack 2,3,4,6,7,8-HxCDF Method 23 3 0 Stack 1,2,3,7,8,9-HxCDF Method 23 3 0 Stack 1,2,3,4,6,7,8-HpCDF Method 23 3 0 Stack 1,2,3,4,7,8,9-HpCDF Method 23 3 0 Stack OCDF Method 23 3 0 Stack 3,3',4,4'-TCB (PCB77) Method 23 3 0 Stack 3,4,4',5-TCB (PCB81) Method 23 3 0 Stack 2,3,3',4,4'-PeCB (PCB105) Method 23 3 0 Stack 2,3,4,4',5-PeCB (PCB114) Method 23 3 0 Stack 2,3',4,4',5-PeCB (PCB118) Method 23 3 0 Stack 2',3,4,4',5-PeCB (PCB123) Method 23 3 0 Stack 3,3',4,4',5-PeCB (PCB126) Method 23 3 0 Stack 2,3,3',4,4',5/2,3,3',4,4',5'-

HxCB (PCBs156/157) Method 23 3 0 Stack

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

(PCB189) Method 23 3 0 Stack

Total organic compounds

(TOC) as Propane Method 25A 3 0 Stack

Inorganic (Aqueous)

Condensible Part. OTM - 27/28 3 0 Stack

Filterable PM2.5 OTM - 27/28 3 0 Stack Filterable Particulate OTM - 27/28 3 0 Stack Total Particulate OTM - 27/28 3 0 Stack Organic Condensible

Particulate OTM - 27/28 3 0 Stack

Total PM2.5 OTM - 27/28 3 0 Stack Nickel Method 29 3 0 Stack Cadmium Method 29 3 0 Stack Antimony Method 29 3 0 Stack Arsenic Method 29 3 0 Stack Beryllium Method 29 3 0 Stack Chromium Method 29 3 0 Stack Cobalt Method 29 3 0 Stack Filterable Particulate Method 29 3 0 Stack Manganese Method 29 3 0 Stack Selenium Method 29 3 0 Stack Phosphorus (yellow or white) Method 29 3 0 Stack Lead Method 29 3 0 Stack Co2 Method 3A CO2 3 0 Stack O2 Method 3A O2 3 0 Stack



### Friday, February 25, 2011 Page 3 of 25

### Friday, February 25, 2011 Page 4 of 25

### Friday, February 25, 2011 Page 5 of 25

### Sampling / Stack Data Results Summary



### Location Stack - Method 10 Average
Run Number
Test Date
Run Start Time
Run Finish Time Carbon Dioxide, % Oxygen, % Dry Volumetric Flow Rate, dry scfm F-Factor, dscfm/MMBtu @ %O2 Moisture, % Fuel Type
Fw
Fc



### Location Stack - Method 23 Average Run Number 1 2 3
Test Date 7/13/2010 7/14/2010 7/15/2010
Run Start Time 8:43:00 AM 8:03:00 AM 8:01:00 AM

Run Finish Time 6:27:00 PM 4:28:00 PM 4:36:00 PM Net Run Time, minutes 480 480 480 Dry Gas Meter Volume Sampled, dscf 299.616 309.234 311.070 306.640 Moisture Content of Stack Gas, % 8.77 8.26 8.08 8.370 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Carbon Dioxide, % 5.2 5.1 5 5.100 Oxygen, % 14.1 14.3 14.5 14.300 Average Stack Gas Temperature, °F 245.43 244.54 247.70 245.890 Dry Volumetric Flow Rate, dry scfm 359,731.4 370,816.2 374,405.8 368,317.800 Actual Wet Volumetric Flue Gas Flow Rate, acfm 528,407.6 541,523.1 545,032.9 538,321.200 Percent Isokinetic of Sampling Rate, % 101.2 101.3 100.9 101.133 F-Factor, dscfm/MMBtu @ %O2 9190 9190 9190 9,190.000
Fw 10320 10320 10320 10,320.000
Fc 1420 1420 1420 1,420.000



### Friday, February 25, 2011 Page 6 of 25

### Location Stack - Method 25A Average

Run Number
Test Date
Run Start Time
Run Finish Time Carbon Dioxide, % Oxygen, % Dry Volumetric Flow Rate, dry scfm F-Factor, dscfm/MMBtu @ %O2 Moisture, % Fuel Type
Fw
Fc



### Location Stack - Method 29 Average Run Number
Test Date
Run Start Time
Run Finish Time Net Run Time, minutes Dry Gas Meter Volume Sampled, dscf Moisture Content of Stack Gas, % Moisture Saturation at Stack Gas Temperature, % Carbon Dioxide, % Oxygen, % Average Stack Gas Temperature, °F Dry Volumetric Flow Rate, dry scfm Actual Wet Volumetric Flue Gas Flow Rate, acfm Percent Isokinetic of Sampling Rate, % F-Factor, dscfm/MMBtu @ %O2
Fw
Fc



### Friday, February 25, 2011 Page 7 of 25

### Location Stack - Method 3A CO2 Average

Run Number
Test Date
Run Start Time
Run Finish Time Carbon Dioxide, % Oxygen, % Dry Volumetric Flow Rate, dry scfm F-Factor, dscfm/MMBtu @ %O2 Moisture, % Fuel Type
Fw
Fc



### Location Stack - Method 3A O2 Average Run Number
Test Date
Run Start Time
Run Finish Time Carbon Dioxide, % Oxygen, % Dry Volumetric Flow Rate, dry scfm F-Factor, dscfm/MMBtu @ %O2 Moisture, % Fuel Type
Fw
Fc



### Friday, February 25, 2011 Page 8 of 25

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

Run Number
Test Date
Run Start Time
Run Finish Time Net Run Time, minutes Dry Gas Meter Volume Sampled, dscf Moisture Content of Stack Gas, % Moisture Saturation at Stack Gas Temperature, % Carbon Dioxide, % Oxygen, % Average Stack Gas Temperature, °F Dry Volumetric Flow Rate, dry scfm Actual Wet Volumetric Flue Gas Flow Rate, acfm Percent Isokinetic of Sampling Rate, % F-Factor, dscfm/MMBtu @ %O2
Fw
Fc



### Friday, February 25, 2011 Page 9 of 25

### Emissions Summary



### Location: Stack - Method 10 Compound: Carbon Monoxide Average Run 1 2 3 lb/mmBtuO2 2.96E-03 3.29E-03 4.34E-03 0.004 ppm 1.42E+00 1.51E+00 1.99E+00 1.640 ppm@7%O2 2.95E+00 3.28E+00 4.32E+00 3.517



### Location: Stack - Method 23 Compound: 1,2,3,4,6,7,8-HpCDD Average RunNumber 2 3 1 Mass_mg 0.0000000051 0.0000000034 0.0000000053 0.000 lb/mmBtuO2 1.06E-12 7.23E-13 1.10E-12 0.000 ng/dscm 5.83E-04 3.86E-04 6.25E-04 0.001 ng/dscm@7%O2 1.23E-03 8.38E-04 1.28E-03 0.001


### Compound: 1,2,3,4,6,7,8-HpCDF Average RunNumber 1 2 3 Mass_mg 0.0000000037 0.0000000028 0.0000000029 0.000 lb/mmBtuO2 7.69E-13 5.81E-13 6.17E-13 0.000 ng/dscm 4.36E-04 3.20E-04 3.29E-04 0.000 ng/dscm@7%O2 8.91E-04 6.74E-04 7.15E-04 0.001


### Compound: 1,2,3,4,7,8,9-HpCDF Average RunNumber 1 2 3 Mass_mg 0.0000000017 0.0000000022 0.0000000023 0.000 lb/mmBtuO2 3.53E-13 4.56E-13 4.89E-13 0.000 ng/dscm 2.00E-04 2.51E-04 2.61E-04 0.000 ng/dscm@7%O2 4.09E-04 5.29E-04 5.67E-04 0.001


### Compound: 1,2,3,4,7,8-HxCDD Average RunNumber 2 3 1 Mass_mg 0.0000000028 0.000000002 0.000000003 0.000 lb/mmBtuO2 5.81E-13 4.25E-13 6.24E-13 0.000 ng/dscm 3.20E-04 2.27E-04 3.54E-04 0.000 ng/dscm@7%O2 6.74E-04 4.93E-04 7.24E-04 0.001


### Compound: 1,2,3,4,7,8-HxCDF Average RunNumber 2 3 1 Mass_mg 0.0000000019 0.000000003 0.0000000022 0.000 lb/mmBtuO2 3.94E-13 6.38E-13 4.57E-13 0.000 ng/dscm 2.17E-04 3.41E-04 2.59E-04 0.000 ng/dscm@7%O2 4.57E-04 7.41E-04 5.29E-04 0.001


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



### Friday, February 25, 2011 Page 10 of 25RunNumber 2 3 1 Mass_mg 0.000000003 0.0000000022 0.0000000033 0.000 lb/mmBtuO2 6.22E-13 4.68E-13 6.86E-13 0.000 ng/dscm 3.43E-04 2.50E-04 3.89E-04 0.000 ng/dscm@7%O2 7.22E-04 5.43E-04 7.95E-04 0.001


### Compound: 1,2,3,6,7,8-HxCDF Average RunNumber 2 3 1 Mass_mg 0.0000000019 0.000000003 0.0000000018 0.000 lb/mmBtuO2 3.94E-13 6.38E-13 3.74E-13 0.000 ng/dscm 2.17E-04 3.41E-04 2.12E-04 0.000 ng/dscm@7%O2 4.57E-04 7.41E-04 4.33E-04 0.001


### Compound: 1,2,3,7,8,9-HxCDD Average RunNumber 2 3 1 Mass_mg 0.0000000028 0.000000002 0.000000003 0.000 lb/mmBtuO2 5.81E-13 4.25E-13 6.24E-13 0.000 ng/dscm 3.20E-04 2.27E-04 3.54E-04 0.000 ng/dscm@7%O2 6.74E-04 4.93E-04 7.24E-04 0.001


### Compound: 1,2,3,7,8,9-HxCDF Average RunNumber 1 2 3 Mass_mg 0.0000000022 0.0000000023 0.0000000036 0.000 lb/mmBtuO2 4.57E-13 4.77E-13 7.66E-13 0.000 ng/dscm 2.59E-04 2.63E-04 4.09E-04 0.000 ng/dscm@7%O2 5.29E-04 5.54E-04 8.88E-04 0.001


### Compound: 1,2,3,7,8-PeCDD Average RunNumber 2 3 1 Mass_mg 0.0000000033 0.0000000028 0.000000004 0.000 lb/mmBtuO2 6.85E-13 5.96E-13 8.31E-13 0.000 ng/dscm 3.77E-04 3.18E-04 4.72E-04 0.000 ng/dscm@7%O2 7.94E-04 6.91E-04 9.65E-04 0.001


### Compound: 1,2,3,7,8-PeCDF Average RunNumber 2 3 1 Mass_mg 0.0000000044 0.0000000032 0.0000000031 0.000 lb/mmBtuO2 9.13E-13 6.81E-13 6.44E-13 0.000 ng/dscm 5.03E-04 3.63E-04 3.65E-04 0.000 ng/dscm@7%O2 1.06E-03 7.88E-04 7.46E-04 0.001


### Compound: 2,3,3',4,4',5,5'-HpCB (PCB189) Average RunNumber 2 3 1 Mass_mg 0.000000005 0.0000000055 0.0000000053 0.000 lb/mmBtuO2 1.04E-12 1.17E-12 1.10E-12 0.000 ng/dscm 5.71E-04 6.24E-04 6.25E-04 0.001 ng/dscm@7%O2 1.20E-03 1.36E-03 1.28E-03 0.001



### Friday, February 25, 2011 Page 11 of 25

### Compound: 2,3,3',4,4',5/2,3,3',4,4',5'-HxCB (PC Average RunNumber 1 2 3 Mass_mg 0.000000058 0.000000045 0.000000036 0.000 lb/mmBtuO2 1.21E-11 9.34E-12 7.66E-12 0.000 ng/dscm 6.84E-03 5.14E-03 4.09E-03 0.005 ng/dscm@7%O2 1.40E-02 1.08E-02 8.88E-03 0.011


### Compound: 2,3,3',4,4'-PeCB (PCB105) Average RunNumber 1 2 3 Mass_mg 0.00000018 0.00000012 0.000000097 0.000 lb/mmBtuO2 3.74E-11 2.49E-11 2.06E-11 0.000 ng/dscm 2.12E-02 1.37E-02 1.10E-02 0.015 ng/dscm@7%O2 4.33E-02 2.89E-02 2.39E-02 0.032


### Compound: 2,3',4,4',5,5'-HxCB (PCB167) Average RunNumber 1 2 3 Mass_mg 0.000000021 0.000000015 0.000000012 0.000 lb/mmBtuO2 4.36E-12 3.11E-12 2.55E-12 0.000 ng/dscm 2.48E-03 1.71E-03 1.36E-03 0.002 ng/dscm@7%O2 5.07E-03 3.60E-03 2.95E-03 0.004


### Compound: 2,3,4,4',5-PeCB (PCB114) Average RunNumber 1 2 3 Mass_mg 0.000000012 0.0000000066 0.0000000078 0.000 lb/mmBtuO2 2.49E-12 1.37E-12 1.66E-12 0.000 ng/dscm 1.41E-03 7.54E-04 8.86E-04 0.001 ng/dscm@7%O2 2.88E-03 1.59E-03 1.92E-03 0.002


### Compound: 2,3',4,4',5-PeCB (PCB118) Average RunNumber 1 2 3 Mass_mg 0.00000055 0.00000035 0.00000027 0.000 lb/mmBtuO2 1.14E-10 7.26E-11 5.74E-11 0.000 ng/dscm 6.48E-02 4.00E-02 3.07E-02 0.045 ng/dscm@7%O2 1.32E-01 8.42E-02 6.67E-02 0.094


### Compound: 2',3,4,4',5-PeCB (PCB123) Average RunNumber 1 2 3 Mass_mg 0.0000000053 0.0000000052 0.0000000079 0.000 lb/mmBtuO2 1.10E-12 1.08E-12 1.68E-12 0.000 ng/dscm 6.25E-04 5.94E-04 8.97E-04 0.001 ng/dscm@7%O2 1.28E-03 1.25E-03 1.95E-03 0.001


### Compound: 2,3,4,6,7,8-HxCDF Average RunNumber 1 2 3 Mass_mg 0.0000000021 0.0000000022 0.0000000034 0.000 lb/mmBtuO2 4.36E-13 4.56E-13 7.23E-13 0.000



### Friday, February 25, 2011 Page 12 of 25ng/dscm 2.48E-04 2.51E-04 3.86E-04 0.000 ng/dscm@7%O2 5.07E-04 5.29E-04 8.38E-04 0.001


### Compound: 2,3,4,7,8-PeCDF Average RunNumber 2 3 1 Mass_mg 0.0000000043 0.0000000031 0.000000003 0.000 lb/mmBtuO2 8.92E-13 6.59E-13 6.24E-13 0.000 ng/dscm 4.91E-04 3.52E-04 3.54E-04 0.000 ng/dscm@7%O2 1.03E-03 7.65E-04 7.24E-04 0.001


### Compound: 2,3,7,8-TCDD Average RunNumber 2 3 1 Mass_mg 0.0000000033 0.0000000034 0.0000000033 0.000 lb/mmBtuO2 6.85E-13 7.23E-13 6.86E-13 0.000 ng/dscm 3.77E-04 3.86E-04 3.89E-04 0.000 ng/dscm@7%O2 7.94E-04 8.38E-04 7.95E-04 0.001


### Compound: 2,3,7,8-TCDF Average RunNumber 2 3 1 Mass_mg 0.0000000031 0.0000000059 0.0000000049 0.000 lb/mmBtuO2 6.43E-13 1.25E-12 1.02E-12 0.000 ng/dscm 3.54E-04 6.70E-04 5.78E-04 0.001 ng/dscm@7%O2 7.46E-04 1.46E-03 1.18E-03 0.001


### Compound: 3,3',4,4',5,5'-HxCB (PCB169) Average RunNumber 1 2 3 Mass_mg 0.000000008 0.0000000062 0.0000000063 0.000 lb/mmBtuO2 1.66E-12 1.29E-12 1.34E-12 0.000 ng/dscm 9.43E-04 7.08E-04 7.15E-04 0.001 ng/dscm@7%O2 1.93E-03 1.49E-03 1.55E-03 0.002


### Compound: 3,3',4,4',5-PeCB (PCB126) Average RunNumber 1 2 3 Mass_mg 0.0000000053 0.0000000052 0.0000000079 0.000 lb/mmBtuO2 1.10E-12 1.08E-12 1.68E-12 0.000 ng/dscm 6.25E-04 5.94E-04 8.97E-04 0.001 ng/dscm@7%O2 1.28E-03 1.25E-03 1.95E-03 0.001


### Compound: 3,3',4,4'-TCB (PCB77) Average RunNumber 1 2 3 Mass_mg 0.000000033 0.000000017 0.000000017 0.000 lb/mmBtuO2 6.86E-12 3.53E-12 3.62E-12 0.000 ng/dscm 3.89E-03 1.94E-03 1.93E-03 0.003 ng/dscm@7%O2 7.95E-03 4.09E-03 4.19E-03 0.005


### Compound: 3,4,4',5-TCB (PCB81) Average RunNumber 1 2 3



### Friday, February 25, 2011 Page 13 of 25Mass_mg 0.0000000048 0.0000000059 0.000000009 0.000 lb/mmBtuO2 9.98E-13 1.22E-12 1.91E-12 0.000 ng/dscm 5.66E-04 6.74E-04 1.02E-03 0.001 ng/dscm@7%O2 1.16E-03 1.42E-03 2.22E-03 0.002


### Compound: OCDD Average RunNumber 1 2 3 Mass_mg 0.0000000236 0.0000000237 0.000000017 0.000 lb/mmBtuO2 4.90E-12 4.92E-12 3.62E-12 0.000 ng/dscm 2.78E-03 2.71E-03 1.93E-03 0.002 ng/dscm@7%O2 5.68E-03 5.71E-03 4.19E-03 0.005


### Compound: OCDF Average RunNumber 1 2 3 Mass_mg 0.0000000062 0.0000000047 0.0000000031 0.000 lb/mmBtuO2 1.29E-12 9.75E-13 6.59E-13 0.000 ng/dscm 7.31E-04 5.37E-04 3.52E-04 0.001 ng/dscm@7%O2 1.49E-03 1.13E-03 7.65E-04 0.001



### Location: Stack - Method 25A Compound: Total organic compounds (TOC) as Average Run 1 2 3 lb/mmBtuO2 6.90E-04 7.36E-04 7.38E-04 0.001 ppm 2.10E-01 2.14E-01 2.15E-01 0.213 ppm@7%O2 4.36E-01 4.65E-01 4.67E-01 0.456



### Location: Stack - Method 29 Compound: Antimony Average RunNumber 1 2 3 Mass_mg 0.213 0.209 0.2 0.207 lb/mmBtuO2 8.93E-05 8.34E-05 8.17E-05 0.000 mg/dscm 4.92E-02 4.80E-02 4.50E-02 0.047 mg/dscm@7%O2 1.04E-01 9.67E-02 9.48E-02 0.099


### Compound: Arsenic Average RunNumber 1 2 3 Mass_mg 0.00975 0.0101 0.0092 0.010 lb/mmBtuO2 4.09E-06 4.03E-06 3.76E-06 0.000 mg/dscm 2.25E-03 2.32E-03 2.07E-03 0.002 mg/dscm@7%O2 4.74E-03 4.67E-03 4.36E-03 0.005


### Compound: Beryllium Average RunNumber 1 2 3 Mass_mg 0.001 0.001 0.001 0.001 lb/mmBtuO2 4.19E-07 3.99E-07 4.09E-07 0.000 mg/dscm 2.31E-04 2.30E-04 2.25E-04 0.000 mg/dscm@7%O2 4.87E-04 4.63E-04 4.74E-04 0.000



### Friday, February 25, 2011 Page 14 of 25

### Compound: Cadmium Average RunNumber 1 2 3 Mass_mg 0.00126 0.00607 0.001 0.003 lb/mmBtuO2 5.28E-07 2.42E-06 4.09E-07 0.000 mg/dscm 2.91E-04 1.39E-03 2.25E-04 0.001 mg/dscm@7%O2 6.13E-04 2.80E-03 4.74E-04 0.001


### Compound: Chromium Average RunNumber 1 2 3 Mass_mg 0.00903 0.02318 0.00778 0.013 lb/mmBtuO2 3.79E-06 9.25E-06 3.18E-06 0.000 mg/dscm 2.08E-03 5.33E-03 1.75E-03 0.003 mg/dscm@7%O2 4.38E-03 1.07E-02 3.69E-03 0.006


### Compound: Cobalt Average RunNumber 1 2 3 Mass_mg 0.04735 0.0454 0.0442 0.046 lb/mmBtuO2 1.99E-05 1.81E-05 1.81E-05 0.000 mg/dscm 1.09E-02 1.04E-02 9.94E-03 0.010 mg/dscm@7%O2 2.30E-02 2.10E-02 2.09E-02 0.022


### Compound: Filterable Particulate Average RunNumber 1 2 3 Mass_mg 77.3 72.3 74.1 74.567 lb/mmBtuO2 3.24E-02 2.89E-02 3.03E-02 0.031 mg/dscm 1.78E+01 1.66E+01 1.67E+01 17.033 mg/dscm@7%O2 3.75E+01 3.34E+01 3.52E+01 35.367


### Compound: Lead Average RunNumber 1 2 3 Mass_mg 0.01191 0.01346 0.01054 0.012 lb/mmBtuO2 4.99E-06 5.37E-06 4.31E-06 0.000 mg/dscm 2.75E-03 3.09E-03 2.37E-03 0.003 mg/dscm@7%O2 5.79E-03 6.22E-03 4.99E-03 0.006


### Compound: Manganese Average RunNumber 1 2 3 Mass_mg 0.03105 0.031 0.0275 0.030 lb/mmBtuO2 1.30E-05 1.24E-05 1.12E-05 0.000 mg/dscm 7.17E-03 7.12E-03 6.19E-03 0.007 mg/dscm@7%O2 1.51E-02 1.43E-02 1.30E-02 0.014


### Compound: Nickel Average RunNumber 1 2 3 Mass_mg 1.38481 1.34031 1.33071 1.352 lb/mmBtuO2 5.81E-04 5.35E-04 5.44E-04 0.001



### Friday, February 25, 2011 Page 15 of 25mg/dscm 3.20E-01 3.08E-01 2.99E-01 0.309 mg/dscm@7%O2 6.74E-01 6.20E-01 6.30E-01 0.641


### Compound: Phosphorus (yellow or white) Average RunNumber 1 2 3 Mass_mg 0.061 0.07 0.059 0.063 lb/mmBtuO2 2.56E-05 2.79E-05 2.41E-05 0.000 mg/dscm 1.41E-02 1.61E-02 1.33E-02 0.015 mg/dscm@7%O2 2.97E-02 3.24E-02 2.80E-02 0.030


### Compound: Selenium Average RunNumber 1 2 3 Mass_mg 0.01 0.01 0.01 0.010 lb/mmBtuO2 4.19E-06 3.99E-06 4.09E-06 0.000 mg/dscm 2.31E-03 2.30E-03 2.25E-03 0.002 mg/dscm@7%O2 4.87E-03 4.63E-03 4.74E-03 0.005



### Location: Stack - OTM - 27/28 Compound: Filterable Particulate Average RunNumber 1 2 3 Mass_mg 95.9 72.1 97.1 88.367 lb/mmBtuO2 4.64E-02 3.68E-02 5.13E-02 0.045


### Compound: Filterable PM2.5 Average RunNumber 1 2 3 Mass_mg 63 47.5 70.8 60.433 lb/mmBtuO2 3.05E-02 2.43E-02 3.74E-02 0.031


### Compound: Inorganic (Aqueous) Condensible Pa Average RunNumber 1 2 3 Mass_mg 10 10 9 9.667 lb/mmBtuO2 4.84E-03 5.11E-03 4.75E-03 0.005


### Compound: Organic Condensible Particulate Average RunNumber 1 2 3 Mass_mg 1.5 2 2.1 1.867 lb/mmBtuO2 7.26E-04 1.02E-03 1.11E-03 0.001


### Compound: Total Particulate Average RunNumber 1 2 3 Mass_mg 107.4 84.1 108.2 99.900 lb/mmBtuO2 5.20E-02 4.30E-02 5.71E-02 0.051


### Compound: Total PM2.5 Average RunNumber 1 2 3



### Friday, February 25, 2011 Page 16 of 25

### Process Run Data Mass_mg 74.5 59.5 81.9 71.967 lb/mmBtuO2 3.61E-02 3.04E-02 4.32E-02 0.037



### Friday, February 25, 2011 Page 17 of 25

### Process Run Data



### Run Name Value UOM Comments Target Value 1 Gross Electric Output 49 MW Daily Avg, 7/13/2010, Run 1 M23 0

2 Gross Electric Output 51 MW Daily Avg, 7/14/2010, Run 2 M23, Runs 1 + 2 of M29 & OTM 27/28 0

3 Gross Electric Output 51 MW Daily Avg, 7/15/2010, Run 3 of M23, M29, & OTM27/28, Run 1 of M10 and M25A 0

4 Gross Electric Output 101 MW Daily Avg, 7/16/2010, Runs 2 + 3 of M10 & M25A 0

1 Net Electric Output 43 MW Daily Avg, 7/13/2010, Run 1 M23 0

2 Net Electric Output 44 MW Daily Avg, 7/14/2010, Run 2 M23, Runs 1 + 2 M29 & OTM 27/28 0

3 Net Electric Output 45 MW Daily Avg, 7/15/2010, Run 3 of M23, M29, & OTM27/28, Run 1 of M10 and M25A 0



### 4 Net Electric Output 92 MW Daily Avg, 7/16/2010, Runs 2 & 3 M10 & M25A 0

1 Main Steam Flow 457 klb/hr 7/13/2010, Period 0800-1900; Run 1 M23 0

2 Main Steam Flow 458 klb/hr 7/14/2010, Period 0800-2000; Run 2 M23, Runs 1 + 2 of M29 & OTM 27/28 0

3 Main Steam Flow 454 klb/hr 7/15/2010, Period 0800-1700; Run 3 of M23, M29, & OTM27/28, Run 1 of M10 and M25A 0



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

### APCD Run Data

Process Lab Run Data 4 Main Steam Flow 452 klb/hr 7/16/2010, Period 0800-1250; Runs 2 + 3 of M10 & M25A 0

1 Average Heat Input 669 mmbtu/hr 7/13/2010, Period 0800-1900; Run 1 M23 0

2 Average Heat Input 691 mmbtu/hr 7/14/2010, Period 0800-2000; Run 2 M23, Runs 1 + 2 of M29 & OTM 27/28 0

3 Average Heat Input 795 mmbtu/hr 7/15/2010, Period 0800-1700; Run 3 of M23, M29, & OTM27/28, Run 1 of M10 and M25A 0

4 Average Heat Input 806 mmbtu/hr 7/16/2010, Period 0800-1250; Runs 2 + 3 of M10 & M25A 0

1 Total Fuel Oil Flow 4.29 kG/hr 7/13/2010, Period 0800-1900; Run 1 M23 0

2 Total Fuel Oil Flow 4.27 kG/hr 7/14/2010, Period 0800-2000; Run 2 M23, Runs 1 + 2 of M29 & OTM 27/28 0

3 Total Fuel Oil Flow 4.29 kG/hr 7/15/2010, Period 0800-1700; Run 3 of M23, M29, & OTM27/28, Run 1 of M10 and M25A 0



### 4 Total Fuel Oil Flow 4.35 kG/hr 7/16/2010, Period 0800-1250; Runs 2 + 3 of M10 & M25A 0

Run Name Value UOM Comments Target Value 

### 1 LOW NOX BURNERS 0 0

Friday, February 25, 2011 Page 19 of 25

### Sampling / Stack Data Results Detail



### Location Stack - Method 10 Average Run Number Test Date Run Start Time Run Finish Time Carbon Dioxide, % Oxygen, % Fuel Factor Dry Volumetric Flow Rate, dry scfm F-Factor, dscfm/MMBtu @ %O2 Moisture, % Analyzer Make Analyzer Model Analyzer Serial Number Operating Range Operating Units No. Readings/Avg. Calibration Set Calibration Pre Zero Cylinder ID Calibration Pre Zero Cylinder Instrument Response Calibration Pre Zero Cylinder Bias Calibration Pre Zero Cylinder Drift Calibration Pre High Cylinder ID Calibration Pre High Cylinder Instrument Response Calibration Pre High Cylinder Bias Calibration Pre High Cylinder Drift Calibration Post Zero Cylinder ID Calibration Post Zero Cylinder Instrument Response Calibration Post Zero Cylinder Bias Calibration Post Zero Cylinder Drift Calibration Post High Cylinder ID Calibration Post High Cylinder Instrument Response Calibration Post High Cylinder Bias Calibration Post High Cylinder Drift Cavg Cavg Units Cgas Cgas Units Fuel Type Fw Fc Cgasw Cgasw Units



### Friday, February 25, 2011 Page 20 of 25

### Location Stack - Method 23 Average

Run Number 1 2 3 Test Date 7/13/2010 7/14/2010 7/15/2010 Run Start Time 8:43:00 AM 8:03:00 AM 8:01:00 AM Run Finish Time 6:27:00 PM 4:28:00 PM 4:36:00 PM Net Traversing Points 95 97 97 Net Run Time, minutes 480 480 480 Nozzle Diameter, inches 0.22 0.22 0.22 0.220 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 0.9976 0.9976 0.9976 0.998 Barometric Pressure, inches of Mercury 29.9 29.86 30.03 29.930 Average Orifice Meter Differential, inches H2O 1.48 1.61 1.63 1.573 Dry Gas Meter Volume Sampled, cubic feet 313.626 322.558 326.753 320.979 Average Dry Gas Meter Temperature, °F 93.00 90.50 97.54 93.680 Dry Gas Meter Volume Sampled, dscf 299.616 309.234 311.070 306.640 Total Moisture Liquid collected, g 611.6 591.8 581 594.800 Volume of Water Vapor, standard cubic feet 28.79 27.86 27.35 28.000 Moisture Content of Stack Gas, % 8.77 8.26 8.08 8.370 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Dry Mole Fraction 0.9123 0.9174 0.9192 0.916 Carbon Dioxide, % 5.2 5.1 5 5.100 Oxygen, % 14.1 14.3 14.5 14.300 Carbon Monoxide & Nitrogen, % 80.7 80.6 80.5 80.600 Fuel Factor 1.31 1.29 1.28 Dry Molecular Weight, lb/lb-Mole 29.40 29.39 29.38 29.390 Wet Molecular weight, lb/lb-Mole 28.40 28.45 28.46 28.437 Flue Gas Static Pressure, inches of H2O -0.9 -0.8 -0.8 -0.833 Absolute Flue Gas Pressure, inches of Mercury 29.83 29.80 29.97 29.867 Average Stack Gas Temperature, °F 245.43 244.54 247.70 245.890 Average Velocity Head, inches of H2O 0.7623366792 34525 0.802041965

136099 0.813707087

340313 0.793

Average Stack Gas Velocity, feet/second 57.21 58.63 59.01 58.283 Stack Cross-Sectional Area, square feet 153.938 153.938 153.938 153.938 Dry Volumetric Flow Rate, dry scfm 359,731.4 370,816.2 374,405.8 368,317.800 Actual Wet Volumetric Flue Gas Flow Rate, acfm 528,407.6 541,523.1 545,032.9 538,321.200 Percent Isokinetic of Sampling Rate, % 101.2 101.3 100.9 101.133 Percent Excess Air, % 195.7 204.9 214.8 205.133 F-Factor, dscfm/MMBtu @ %O2 9190 9190 9190 9,190.000 Round Duct Diameter, inches 168 168 168 Rectangular Duct Width, inches 0 0 0 Rectangular Duct Length, inches 0 0 0 Fw 10320 10320 10320 10,320.000 Fc 1420 1420 1420 1,420.000



### Friday, February 25, 2011 Page 21 of 25

### Location Stack - Method 25A Average

Run Number Test Date Run Start Time Run Finish Time Carbon Dioxide, % Oxygen, % Fuel Factor Dry Volumetric Flow Rate, dry scfm F-Factor, dscfm/MMBtu @ %O2 Moisture, % Analyzer Make Analyzer Model Analyzer Serial Number Operating Range Operating Units No. Readings/Avg. Calibration Set Calibration Pre Zero Cylinder ID Calibration Pre Zero Cylinder Instrument Response Calibration Pre Zero Cylinder Bias Calibration Pre Zero Cylinder Drift Calibration Pre High Cylinder ID Calibration Pre High Cylinder Instrument Response Calibration Pre High Cylinder Bias Calibration Pre High Cylinder Drift Calibration Post Zero Cylinder ID Calibration Post Zero Cylinder Instrument Response Calibration Post Zero Cylinder Bias Calibration Post Zero Cylinder Drift Calibration Post High Cylinder ID Calibration Post High Cylinder Instrument Response Calibration Post High Cylinder Bias Calibration Post High Cylinder Drift Cavg Cavg Units Cgas Cgas Units Fuel Type Fw Fc Cgasw Cgasw Units



### Friday, February 25, 2011 Page 22 of 25

### Location Stack - Method 29 Average

Run Number Test Date Run Start Time Run Finish Time Net Traversing Points Net Run Time, minutes Nozzle Diameter, inches Pitot Tube Coefficient Dry Gas Meter Calibration Factor Barometric Pressure, inches of Mercury Average Orifice Meter Differential, inches H2O Dry Gas Meter Volume Sampled, cubic feet Average Dry Gas Meter Temperature, °F Dry Gas Meter Volume Sampled, dscf Total Moisture Liquid collected, g Volume of Water Vapor, standard cubic feet Moisture Content of Stack Gas, % Moisture Saturation at Stack Gas Temperature, % Dry Mole Fraction Carbon Dioxide, % Oxygen, % Carbon Monoxide & Nitrogen, % Fuel Factor Dry Molecular Weight, lb/lb-Mole Wet Molecular weight, lb/lb-Mole Flue Gas Static Pressure, inches of H2O Absolute Flue Gas Pressure, inches of Mercury Average Stack Gas Temperature, °F Average Velocity Head, inches of H2O Average Stack Gas Velocity, feet/second Stack Cross-Sectional Area, square feet Dry Volumetric Flow Rate, dry scfm Actual Wet Volumetric Flue Gas Flow Rate, acfm Percent Isokinetic of Sampling Rate, % Percent Excess Air, % F-Factor, dscfm/MMBtu @ %O2 Round Duct Diameter, inches Rectangular Duct Width, inches Rectangular Duct Length, inches Fw Fc



### Friday, February 25, 2011 Page 23 of 25

### Location Stack - Method 3A CO2 Average

Run Number Test Date Run Start Time Run Finish Time Carbon Dioxide, % Oxygen, % Fuel Factor Dry Volumetric Flow Rate, dry scfm F-Factor, dscfm/MMBtu @ %O2 Moisture, % Analyzer Make Analyzer Model Analyzer Serial Number Operating Range Operating Units No. Readings/Avg. Calibration Set Calibration Pre Zero Cylinder ID Calibration Pre Zero Cylinder Instrument Response Calibration Pre Zero Cylinder Bias Calibration Pre Zero Cylinder Drift Calibration Pre High Cylinder ID Calibration Pre High Cylinder Instrument Response Calibration Pre High Cylinder Bias Calibration Pre High Cylinder Drift Calibration Post Zero Cylinder ID Calibration Post Zero Cylinder Instrument Response Calibration Post Zero Cylinder Bias Calibration Post Zero Cylinder Drift Calibration Post High Cylinder ID Calibration Post High Cylinder Instrument Response Calibration Post High Cylinder Bias Calibration Post High Cylinder Drift Cavg Cavg Units Cgas Cgas Units Fuel Type Fw Fc Cgasw Cgasw Units



### Friday, February 25, 2011 Page 24 of 25

### Location Stack - Method 3A O2 Average

Run Number Test Date Run Start Time Run Finish Time Carbon Dioxide, % Oxygen, % Fuel Factor Dry Volumetric Flow Rate, dry scfm F-Factor, dscfm/MMBtu @ %O2 Moisture, % Analyzer Make Analyzer Model Analyzer Serial Number Operating Range Operating Units No. Readings/Avg. Calibration Set Calibration Pre Zero Cylinder ID Calibration Pre Zero Cylinder Instrument Response Calibration Pre Zero Cylinder Bias Calibration Pre Zero Cylinder Drift Calibration Pre High Cylinder ID Calibration Pre High Cylinder Instrument Response Calibration Pre High Cylinder Bias Calibration Pre High Cylinder Drift Calibration Post Zero Cylinder ID Calibration Post Zero Cylinder Instrument Response Calibration Post Zero Cylinder Bias Calibration Post Zero Cylinder Drift Calibration Post High Cylinder ID Calibration Post High Cylinder Instrument Response Calibration Post High Cylinder Bias Calibration Post High Cylinder Drift Cavg Cavg Units Cgas Cgas Units Fuel Type Fw Fc Cgasw Cgasw Units



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

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

Run Number Test Date Run Start Time Run Finish Time Net Traversing Points Net Run Time, minutes Nozzle Diameter, inches Pitot Tube Coefficient Dry Gas Meter Calibration Factor Barometric Pressure, inches of Mercury Average Orifice Meter Differential, inches H2O Dry Gas Meter Volume Sampled, cubic feet Average Dry Gas Meter Temperature, °F Dry Gas Meter Volume Sampled, dscf Total Moisture Liquid collected, g Volume of Water Vapor, standard cubic feet Moisture Content of Stack Gas, % Moisture Saturation at Stack Gas Temperature, % Dry Mole Fraction Carbon Dioxide, % Oxygen, % Carbon Monoxide & Nitrogen, % Fuel Factor Dry Molecular Weight, lb/lb-Mole Wet Molecular weight, lb/lb-Mole Flue Gas Static Pressure, inches of H2O Absolute Flue Gas Pressure, inches of Mercury Average Stack Gas Temperature, °F Average Velocity Head, inches of H2O Average Stack Gas Velocity, feet/second Stack Cross-Sectional Area, square feet Dry Volumetric Flow Rate, dry scfm Actual Wet Volumetric Flue Gas Flow Rate, acfm Percent Isokinetic of Sampling Rate, % Percent Excess Air, % F-Factor, dscfm/MMBtu @ %O2 Round Duct Diameter, inches Rectangular Duct Width, inches Rectangular Duct Length, inches Fw Fc



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