### Name:

Title: Company: Sign Date: Name: Brian Durkop Title: Vice President Company: EMSI Sign Date: 9/4/2010 Permitted Facility Representative / Date Testing Company Representative / Date 

## Dynegy Danskammer Unit 2 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 11, 2011 Page 1 of 33

### Dynegy Danskammer Unit 2

Facility Information: Dynegy Danskammer Generating Station
994 River Road

Newburgh NY 12550 Contact: Andrew Matura Phone: 845-563-4923 Fax: 845-563-4992 Email: andrew.d.matura@dynegy.com Testing Company: Eagle Mountain Scientific, Inc.
8905 Autumn Oaks Drive
Suite 2
Rockford MN 55373 Contact: Brian Durkop Phone: 763-477-4462 Fax: 763-477-5991 Email: bdurkop@eagle-msi.com

Air Permit Number: 3-3346-00011/00002 Permitted Source ID/Name: Unit 2 2 Permitted Maximum Process Rate: NA Max. Normal Operation Process Rate: 72 MW Target Process Test Rate 40 MW

Description of the source (including control equipment). Please see the attachments for source or process flow diagram: Dankammer 2 is an oil fired boiler with a maximum rated capacity of 72 MW. The unit is equipped with electrostatic precipitators. Industry/SCC/NAIS 221112

Sampling Location Information:

Test Parameter Information: AFS #: 3607100002 FRS #: 110041167108

SCC / Description 10100401 External Combustion Boilers - Electric Generation - Residual Oil - Grade 6 Oil: Normal Firing

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 144 522 1206 4 0 24 0 0

Target Parameter Test Method Number of

Test Runs Test Run

Duration Sample

Points Comments Location Carbon Monoxide Method 10 3 180 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 1,2,3,7,8,9-HxCDD Method 23 3 480 0 Stack Exit



### Friday, February 11, 2011 Page 2 of 33

### Dynegy Danskammer Unit 2

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 3 480 0 Stack Exit Other PeCDD Method 23 3 480 0 Stack Exit Other HxCDD Method 23 3 480 0 Stack Exit Other HpCDD Method 23 3 480 0 Stack Exit Other TCDF Method 23 3 480 0 Stack Exit Other PeCDF Method 23 3 480 0 Stack Exit Other HxCDF Method 23 3 480 0 Stack Exit Other HpCDF Method 23 3 480 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 90 0 Stack Exit Hydrogen Chloride Method 26 3 90 0 Stack Exit Total Particulate OTM - 27/28 3 360 0 Stack Exit Total PM2.5 OTM - 27/28 3 360 0 Stack Exit Organic Condensible

Particulate OTM - 27/28 3 360 0 Stack Exit
Inorganic (Aqueous)

Condensible Part. OTM - 27/28 3 360 0 Stack Exit

Filterable PM2.5 OTM - 27/28 3 360 0 Stack Exit Filterable Particulate OTM - 27/28 3 360 0 Stack Exit Filterable Particulate Method 29 3 240 0 Stack Exit Antimony Method 29 3 240 0 Stack Exit Arsenic Method 29 3 240 0 Stack Exit Beryllium Method 29 3 240 0 Stack Exit Cadmium Method 29 3 240 0 Stack Exit Chromium Method 29 3 240 0 Stack Exit


### Friday, February 11, 2011 Page 3 of 33

### Dynegy Danskammer Unit 2

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 Lead Method 29 3 240 0 Stack Exit Magnesium Method 29 3 240 0 Stack Exit Manganese Method 29 3 240 0 Stack Exit Selenium Method 29 3 240 0 Stack Exit Nickel Method 29 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 11, 2011 Page 4 of 33

### Dynegy Danskammer Unit 2

Sampling / Stack Data Results Summary



### Location Stack Exit - Method 0011 Average Run Number 1 2 3
Test Date 7/21/2010 7/21/2010 7/21/2010 Run Start Time 12:00:00 AM 12:00:00 PM 12:00:00 AM

Run Finish Time 11:32:00 AM 2:27:00 PM 5:58:00 AM Net Run Time, minutes 120 120 120 Dry Gas Meter Volume Sampled, dscf 91.233 90.530 92.270 91.344 Moisture Content of Stack Gas, % 8.65 8.63 8.35 8.543 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Carbon Dioxide, % 9.4 9.3 9.4 9.367 Oxygen, % 9 9.1 9.1 9.067 Average Stack Gas Temperature, °F 301.89 305.55 305.53 304.323 Dry Volumetric Flow Rate, dry scfm 129,128.6 127,985.7 130,557.9 129,224.067 Actual Wet Volumetric Flue Gas Flow Rate, acfm 204,931.8 204,117.5 207,578.2 205,542.500 Percent Isokinetic of Sampling Rate, % 102.0 102.1 102.0 102.033 F-Factor, dscfm/MMBtu @ %O2 9418 9418 9418 9,418.000
Fw 0 0 0 0.000
Fc 0 0 0 0.000



### Location Stack Exit - 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



### Friday, February 11, 2011 Page 5 of 33

### Dynegy Danskammer Unit 2

Location Stack Exit - Method 23 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



### Location Stack Exit - 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



### Friday, February 11, 2011 Page 6 of 33

### Dynegy Danskammer Unit 2

Location Stack Exit - Method 26 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



### Location Stack Exit - 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 11, 2011 Page 7 of 33

### Dynegy Danskammer Unit 2

Location Stack Exit - Method 6C 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 Exit - Method 7E 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 11, 2011 Page 8 of 33

### Dynegy Danskammer Unit 2

Location Stack Exit - 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



### Location Stack Exit - SW0010 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 11, 2011 Page 9 of 33

### Dynegy Danskammer Unit 2

Emissions Summary



### Location: Stack Exit - Method 0011 Compound: Formaldehyde Average RunNumber 2 3 1 Mass_mg 0.054 0.046 0.037 0.046 lb/mmBtuO2 2.19E-05 1.83E-05 1.48E-05 0.000 ppm 1.69E-02 1.41E-02 1.15E-02 0.014 ppm@7%O2 1.99E-02 1.66E-02 1.34E-02 0.017



### Location: Stack Exit - Method 10 Compound: Carbon Monoxide Average Run 1 2 3 lb/mmBtuO2 2.35E-03 2.99E-03 1.37E-03 0.002 ppm 1.95E+00 2.47E+00 1.13E+00 1.850 ppm@7%O2 2.28E+00 2.91E+00 1.33E+00 2.173



### Location: Stack Exit - Method 23 Compound: 1,2,3,4,6,7,8-HpCDD Average RunNumber 1 2 3 Mass_mg 0.000000359 0.000000126 0.000000062 0.000 lb/mmBtuO2 6.38E-11 1.53E-11 7.64E-12 0.000 ng/dscm 6.06E-02 1.48E-02 7.62E-03 0.028 ng/dscm@7%O2 7.20E-02 1.74E-02 8.61E-03 0.033 

### Compound: 1,2,3,4,6,7,8-HpCDF Average RunNumber 1 2 3 Mass_mg 0.00000065 0.00000015 0.000000052 0.000 lb/mmBtuO2 1.16E-10 1.83E-11 6.41E-12 0.000 ng/dscm 1.10E-01 1.76E-02 6.39E-03 0.045 ng/dscm@7%O2 1.31E-01 2.07E-02 7.22E-03 0.053 

### Compound: 1,2,3,4,7,8,9-HpCDF Average RunNumber 1 2 3 Mass_mg 0.000000085 0.0000000156 0.0000000029 0.000 lb/mmBtuO2 1.51E-11 1.90E-12 3.57E-13 0.000 ng/dscm 1.43E-02 1.83E-03 3.56E-04 0.005 ng/dscm@7%O2 1.70E-02 2.16E-03 4.02E-04 0.007 

### Compound: 1,2,3,4,7,8-HxCDD Average RunNumber 1 2 3 Mass_mg 0.000000049 0.0000000134 0.0000000061 0.000 lb/mmBtuO2 8.71E-12 1.63E-12 7.51E-13 0.000 ng/dscm 8.27E-03 1.57E-03 7.49E-04 0.004 ng/dscm@7%O2 9.83E-03 1.85E-03 8.46E-04 0.004



### Friday, February 11, 2011 Page 10 of 33

### Dynegy Danskammer Unit 2

Compound: 1,2,3,4,7,8-HxCDF Average RunNumber 1 2 3 Mass_mg 0.000000218 0.0000000278 0.000000015 0.000 lb/mmBtuO2 3.88E-11 3.39E-12 1.85E-12 0.000 ng/dscm 3.68E-02 3.27E-03 1.84E-03 0.014 ng/dscm@7%O2 4.37E-02 3.85E-03 2.08E-03 0.017 

### Compound: 1,2,3,6,7,8-HxCDD Average RunNumber 1 2 3 Mass_mg 0.000000068 0.0000000185 0.0000000088 0.000 lb/mmBtuO2 1.21E-11 2.25E-12 1.08E-12 0.000 ng/dscm 1.15E-02 2.17E-03 1.08E-03 0.005 ng/dscm@7%O2 1.37E-02 2.56E-03 1.22E-03 0.006 

### Compound: 1,2,3,6,7,8-HxCDF Average RunNumber 1 2 3 Mass_mg 0.000000242 0.000000062 0.0000000245 0.000 lb/mmBtuO2 4.30E-11 7.55E-12 3.02E-12 0.000 ng/dscm 4.08E-02 7.28E-03 3.01E-03 0.017 ng/dscm@7%O2 4.85E-02 8.58E-03 3.40E-03 0.020 

### Compound: 1,2,3,7,8,9-HxCDD Average RunNumber 1 2 3 Mass_mg 0.000000104 0.000000028 0.0000000149 0.000 lb/mmBtuO2 1.85E-11 3.41E-12 1.84E-12 0.000 ng/dscm 1.76E-02 3.29E-03 1.83E-03 0.008 ng/dscm@7%O2 2.09E-02 3.88E-03 2.07E-03 0.009 

### Compound: 1,2,3,7,8,9-HxCDF Average RunNumber 1 2 3 Mass_mg 0.0000000176 0.0000000029 0.0000000032 0.000 lb/mmBtuO2 3.13E-12 3.53E-13 3.94E-13 0.000 ng/dscm 2.97E-03 3.41E-04 3.93E-04 0.001 ng/dscm@7%O2 3.53E-03 4.02E-04 4.44E-04 0.001 

### Compound: 1,2,3,7,8-PeCDD Average RunNumber 1 2 3 Mass_mg 0.00000008 0.0000000175 0.0000000078 0.000 lb/mmBtuO2 1.42E-11 2.13E-12 9.61E-13 0.000 ng/dscm 1.35E-02 2.06E-03 9.58E-04 0.006 ng/dscm@7%O2 1.60E-02 2.43E-03 1.08E-03 0.007 

### Compound: 1,2,3,7,8-PeCDF Average RunNumber 1 2 3 Mass_mg 0.000000217 0.000000068 0.0000000296 0.000 lb/mmBtuO2 3.86E-11 8.28E-12 3.65E-12 0.000



### Friday, February 11, 2011 Page 11 of 33

### Dynegy Danskammer Unit 2

ng/dscm 3.66E-02 7.99E-03 3.64E-03 0.016 ng/dscm@7%O2 4.35E-02 9.41E-03 4.11E-03 0.019 

### Compound: 2,3,3',4,4',5,5'-HpCB (PCB189) Average RunNumber 1 2 3 Mass_mg 0.000000022 0.000000015 0.0000000083 0.000 lb/mmBtuO2 3.91E-12 1.83E-12 1.02E-12 0.000 ng/dscm 3.71E-03 1.76E-03 1.02E-03 0.002 ng/dscm@7%O2 4.41E-03 2.07E-03 1.15E-03 0.003 

### Compound: 2,3,3',4,4',5/2,3,3',4,4',5'-HxCB (PC Average RunNumber 1 2 3 Mass_mg 0.00000006 0.000000044 0.000000039 0.000 lb/mmBtuO2 1.07E-11 5.36E-12 4.80E-12 0.000 ng/dscm 1.01E-02 5.17E-03 4.79E-03 0.007 ng/dscm@7%O2 1.20E-02 6.09E-03 5.41E-03 0.008 

### Compound: 2,3,3',4,4'-PeCB (PCB105) Average RunNumber 1 2 3 Mass_mg 0.00000008 0.000000099 0.00000008 0.000 lb/mmBtuO2 1.42E-11 1.21E-11 9.85E-12 0.000 ng/dscm 1.35E-02 1.16E-02 9.83E-03 0.012 ng/dscm@7%O2 1.60E-02 1.37E-02 1.11E-02 0.014 

### Compound: 2,3',4,4',5,5'-HxCB (PCB167) Average RunNumber 1 2 3 Mass_mg 0.00000002 0.000000014 0.000000017 0.000 lb/mmBtuO2 3.56E-12 1.71E-12 2.09E-12 0.000 ng/dscm 3.38E-03 1.64E-03 2.09E-03 0.002 ng/dscm@7%O2 4.02E-03 1.93E-03 2.36E-03 0.003 

### Compound: 2,3,4,4',5-PeCB (PCB114) Average RunNumber 1 2 3 Mass_mg 0.00000001 0.0000000079 0.0000000072 0.000 lb/mmBtuO2 1.78E-12 9.62E-13 8.87E-13 0.000 ng/dscm 1.69E-03 9.28E-04 8.85E-04 0.001 ng/dscm@7%O2 2.01E-03 1.09E-03 1.00E-03 0.001 

### Compound: 2,3',4,4',5-PeCB (PCB118) Average RunNumber 1 2 3 Mass_mg 0.00000023 0.00000027 0.00000023 0.000 lb/mmBtuO2 4.09E-11 3.29E-11 2.83E-11 0.000 ng/dscm 3.88E-02 3.17E-02 2.83E-02 0.033 ng/dscm@7%O2 4.61E-02 3.73E-02 3.20E-02 0.038 

### Compound: 2',3,4,4',5-PeCB (PCB123) Average RunNumber 1 2 3


### Friday, February 11, 2011 Page 12 of 33

### Dynegy Danskammer Unit 2

Mass_mg 0.0000000058 0.0000000057 0.0000000037 0.000 lb/mmBtuO2 1.03E-12 6.94E-13 4.56E-13 0.000 ng/dscm 9.79E-04 6.70E-04 4.55E-04 0.001 ng/dscm@7%O2 1.16E-03 7.89E-04 5.14E-04 0.001 

### Compound: 2,3,4,6,7,8-HxCDF Average RunNumber 1 2 3 Mass_mg 0.000000167 0.000000049 0.000000018 0.000 lb/mmBtuO2 2.97E-11 5.97E-12 2.22E-12 0.000 ng/dscm 2.82E-02 5.76E-03 2.21E-03 0.012 ng/dscm@7%O2 3.35E-02 6.79E-03 2.50E-03 0.014 

### Compound: 2,3,4,7,8-PeCDF Average RunNumber 1 2 3 Mass_mg 0.000000187 0.000000046 0.0000000199 0.000 lb/mmBtuO2 3.32E-11 5.60E-12 2.45E-12 0.000 ng/dscm 3.16E-02 5.40E-03 2.44E-03 0.013 ng/dscm@7%O2 3.75E-02 6.36E-03 2.76E-03 0.016 

### Compound: 2,3,7,8-TCDD Average RunNumber 1 2 3 Mass_mg 0.000000035 0.00000001 0.0000000054 0.000 lb/mmBtuO2 6.22E-12 1.22E-12 6.65E-13 0.000 ng/dscm 5.91E-03 1.17E-03 6.63E-04 0.003 ng/dscm@7%O2 7.02E-03 1.38E-03 7.49E-04 0.003 

### Compound: 2,3,7,8-TCDF Average RunNumber 1 2 3 Mass_mg 0.000000307 0.0000001 0.000000058 0.000 lb/mmBtuO2 5.46E-11 1.22E-11 7.14E-12 0.000 ng/dscm 5.18E-02 1.17E-02 7.13E-03 0.024 ng/dscm@7%O2 6.15E-02 1.38E-02 8.06E-03 0.028 

### Compound: 3,3',4,4',5,5'-HxCB (PCB169) Average RunNumber 1 2 3 Mass_mg 0.000000015 0.0000000071 0.0000000047 0.000 lb/mmBtuO2 2.67E-12 8.65E-13 5.79E-13 0.000 ng/dscm 2.53E-03 8.34E-04 5.77E-04 0.001 ng/dscm@7%O2 3.01E-03 9.82E-04 6.52E-04 0.002 

### Compound: 3,3',4,4',5-PeCB (PCB126) Average RunNumber 1 2 3 Mass_mg 0.000000023 0.000000011 0.000000006 0.000 lb/mmBtuO2 4.09E-12 1.34E-12 7.39E-13 0.000 ng/dscm 3.88E-03 1.29E-03 7.37E-04 0.002 ng/dscm@7%O2 4.61E-03 1.52E-03 8.33E-04 0.002



### Friday, February 11, 2011 Page 13 of 33

### Dynegy Danskammer Unit 2

Compound: 3,3',4,4'-TCB (PCB77) Average RunNumber 1 2 3 Mass_mg 0.000000041 0.000000039 0.000000031 0.000 lb/mmBtuO2 7.29E-12 4.75E-12 3.82E-12 0.000 ng/dscm 6.92E-03 4.58E-03 3.81E-03 0.005 ng/dscm@7%O2 8.22E-03 5.40E-03 4.31E-03 0.006 

### Compound: 3,4,4',5-TCB (PCB81) Average RunNumber 1 2 3 Mass_mg 0.0000000073 0.0000000051 0.000000011 0.000 lb/mmBtuO2 1.30E-12 6.21E-13 1.35E-12 0.000 ng/dscm 1.23E-03 5.99E-04 1.35E-03 0.001 ng/dscm@7%O2 1.46E-03 7.06E-04 1.53E-03 0.001 

### Compound: OCDD Average RunNumber 1 2 3 Mass_mg 0.00000025 0.000000477 0.000000243 0.000 lb/mmBtuO2 4.44E-11 5.81E-11 2.99E-11 0.000 ng/dscm 4.22E-02 5.60E-02 2.99E-02 0.043 ng/dscm@7%O2 5.01E-02 6.60E-02 3.38E-02 0.050 

### Compound: OCDF Average RunNumber 1 2 3 Mass_mg 0.000000348 0.000000109 0.0000000536 0.000 lb/mmBtuO2 6.19E-11 1.33E-11 6.60E-12 0.000 ng/dscm 5.87E-02 1.28E-02 6.59E-03 0.026 ng/dscm@7%O2 6.97E-02 1.51E-02 7.45E-03 0.031 

### Compound: Other HpCDD Average RunNumber 1 2 3 Mass_mg 0.000000644 0.000000237 0.000000123 0.000 lb/mmBtuO2 1.14E-10 2.89E-11 1.52E-11 0.000 ng/dscm 1.09E-01 2.78E-02 1.51E-02 0.051 ng/dscm@7%O2 1.29E-01 3.27E-02 1.71E-02 0.060 

### Compound: Other HpCDF Average RunNumber 1 3 2 Mass_mg 0.000000301 0.0000000161 0.000000046 0.000 lb/mmBtuO2 5.35E-11 1.98E-12 5.60E-12 0.000 ng/dscm 5.08E-02 1.98E-03 5.40E-03 0.019 ng/dscm@7%O2 6.04E-02 2.24E-03 6.36E-03 0.023 

### Compound: Other HxCDD Average RunNumber 1 2 3 Mass_mg 0.000000701 0.000000164 0.000000083 0.000 lb/mmBtuO2 1.25E-10 2.00E-11 1.02E-11 0.000



### Friday, February 11, 2011 Page 14 of 33

### Dynegy Danskammer Unit 2

ng/dscm 1.18E-01 1.93E-02 1.02E-02 0.049 ng/dscm@7%O2 1.40E-01 2.27E-02 1.15E-02 0.058 

### Compound: Other HxCDF Average RunNumber 1 3 2 Mass_mg 0.00000161 0.000000131 0.000000358 0.000 lb/mmBtuO2 2.86E-10 1.61E-11 4.36E-11 0.000 ng/dscm 2.72E-01 1.61E-02 4.21E-02 0.110 ng/dscm@7%O2 3.23E-01 1.82E-02 4.96E-02 0.130 

### Compound: Other PeCDD Average RunNumber 1 2 3 Mass_mg 0.000000511 0.000000062 0.000000073 0.000 lb/mmBtuO2 9.08E-11 7.55E-12 8.99E-12 0.000 ng/dscm 8.62E-02 7.28E-03 8.97E-03 0.034 ng/dscm@7%O2 1.02E-01 8.58E-03 1.01E-02 0.040 

### Compound: Other PeCDF Average RunNumber 1 2 3 Mass_mg 0.00000221 0.000000596 0.000000243 0.000 lb/mmBtuO2 3.93E-10 7.26E-11 2.99E-11 0.000 ng/dscm 3.73E-01 7.00E-02 2.99E-02 0.158 ng/dscm@7%O2 4.43E-01 8.25E-02 3.38E-02 0.186 

### Compound: Other TCDD Average RunNumber 1 2 3 Mass_mg 0.00000025 0.000000072 0.00000003 0.000 lb/mmBtuO2 4.44E-11 8.77E-12 3.70E-12 0.000 ng/dscm 4.22E-02 8.46E-03 3.69E-03 0.018 ng/dscm@7%O2 5.01E-02 9.97E-03 4.17E-03 0.021 

### Compound: Other TCDF Average RunNumber 1 2 3 Mass_mg 0.00000234 0.000000793 0.000000511 0.000 lb/mmBtuO2 4.16E-10 9.66E-11 6.29E-11 0.000 ng/dscm 3.95E-01 9.32E-02 6.28E-02 0.184 ng/dscm@7%O2 4.69E-01 1.10E-01 7.10E-02 0.217 

### Compound: Total Dioxins Average RunNumber 1 2 3 Mass_mg 0.000002356 0.000001012 0.000000552 0.000 lb/mmBtuO2 4.19E-10 1.23E-10 6.80E-11 0.000 ng/dscm 3.98E-01 1.19E-01 6.78E-02 0.195 ng/dscm@7%O2 4.73E-01 1.40E-01 7.66E-02 0.230 

### Compound: Total Furans Average RunNumber 1 2 3


### Friday, February 11, 2011 Page 15 of 33

### Dynegy Danskammer Unit 2

Mass_mg 0.000006809 0.000001902 0.0000009547 0.000 lb/mmBtuO2 1.21E-09 2.32E-10 1.18E-10 0.000 ng/dscm 1.15E+00 2.23E-01 1.17E-01 0.497 ng/dscm@7%O2 1.37E+00 2.63E-01 1.32E-01 0.588



### Location: Stack Exit - Method 25A 

### Compound: Total organic compounds (TOC) as Average Run 1 2 3 lb/mmBtuO2 7.46E-04 4.24E-04 0.00E+00 0.000 ppm 3.91E-01 2.22E-01 0.00E+00 0.204 ppm@7%O2 4.61E-01 2.62E-01 0.00E+00 0.241



### Location: Stack Exit - Method 26 

### Compound: Hydrogen Chloride Average RunNumber 1 2 3 Mass_mg 1.6 1.3 1.4 1.433 lb/mmBtuO2 8.86E-04 7.31E-04 7.81E-04 0.001 mg/dscm 8.84E-01 7.24E-01 7.73E-01 0.794 ppm 5.83E-01 4.77E-01 5.10E-01 0.523 ppm@7%O2 6.59E-01 5.43E-01 5.81E-01 0.594 

### Compound: Hydrogen Fluoride Average RunNumber 1 2 3 Mass_mg 0.28 0.25 0.24 0.257 lb/mmBtuO2 1.55E-04 1.41E-04 1.34E-04 0.000 mg/dscm 1.55E-01 1.39E-01 1.32E-01 0.142 ppm 1.86E-01 1.67E-01 1.59E-01 0.171 ppm@7%O2 2.10E-01 1.90E-01 1.81E-01 0.194



### Location: Stack Exit - Method 29 Compound: Antimony Average RunNumber 1 2 3 Mass_mg 0.0044 0.0041 0.0045 0.004 lb/mmBtuO2 1.68E-06 1.44E-06 1.38E-06 0.000 

### Compound: Arsenic Average RunNumber 1 2 3 Mass_mg 0.0041 0.004 0.0042 0.004 lb/mmBtuO2 1.57E-06 1.40E-06 1.29E-06 0.000 

### Compound: Beryllium Average RunNumber 1 2 3 Mass_mg 0.001 0.001 0.001 0.001 lb/mmBtuO2 3.83E-07 3.51E-07 3.07E-07 0.000



### Friday, February 11, 2011 Page 16 of 33

### Dynegy Danskammer Unit 2

Compound: Cadmium Average RunNumber 1 2 3 Mass_mg 0.00886 0.0368 0.0138 0.020 lb/mmBtuO2 3.39E-06 1.29E-05 4.24E-06 0.000 

### Compound: Chromium Average RunNumber 1 2 3 Mass_mg 0.0101 0.0088 0.0106 0.010 lb/mmBtuO2 3.87E-06 3.09E-06 3.25E-06 0.000 

### Compound: Cobalt Average RunNumber 1 2 3 Mass_mg 0.00284 0.00305 0.0031 0.003 lb/mmBtuO2 1.09E-06 1.07E-06 9.52E-07 0.000 

### Compound: Filterable Particulate Average RunNumber 1 2 3 Mass_mg 155.8 202.7 216.9 191.800 lb/mmBtuO2 5.96E-02 7.11E-02 6.66E-02 0.066 

### Compound: Lead Average RunNumber 1 2 3 Mass_mg 0.0407 0.0388 0.0401 0.040 lb/mmBtuO2 1.56E-05 1.36E-05 1.23E-05 0.000 

### Compound: Manganese Average RunNumber 1 2 3 Mass_mg 0.031 0.0292 0.0289 0.030 lb/mmBtuO2 1.19E-05 1.02E-05 8.87E-06 0.000 

### Compound: Nickel Average RunNumber 1 2 3 Mass_mg 0.0589 0.0657 0.0684 0.064 lb/mmBtuO2 2.25E-05 2.30E-05 2.10E-05 0.000 

### Compound: Selenium Average RunNumber 1 2 3 Mass_mg 0.0102 0.0102 0.0108 0.010 lb/mmBtuO2 3.90E-06 3.58E-06 3.32E-06 0.000



### Location: Stack Exit - Method 6C 

### Compound: Sulfur Dioxide Average Run 1 2 3 lb/mmBtuO2 9.72E-01 9.62E-01 9.78E-01 0.971


### Friday, February 11, 2011 Page 17 of 33

### Dynegy Danskammer Unit 2

Process Run Data ppm 3.53E+02 3.47E+02 3.53E+02 351.000 ppm@7%O2 4.12E+02 4.09E+02 4.16E+02 412.333



### Location: Stack Exit - Method 7E Compound: Nitrogen oxides (NOx) Average Run 1 2 3 lb/mmBtuO2 2.59E-01 2.60E-01 2.90E-01 0.270 ppm 1.31E+02 1.30E+02 1.45E+02 135.333 ppm@7%O2 1.53E+02 1.53E+02 1.71E+02 159.000



### Location: Stack Exit - OTM - 27/28 Compound: Filterable Particulate Average RunNumber 1 2 3 Mass_mg 7.8 10.2 8.3 8.767 lb/mmBtuO2 2.31E-03 3.26E-03 2.46E-03 0.003 

### Compound: Filterable PM2.5 Average RunNumber 1 2 3 Mass_mg 4.5 6 4.5 5.000 lb/mmBtuO2 1.33E-03 1.92E-03 1.33E-03 0.002 

### Compound: Inorganic (Aqueous) Condensible Pa Average RunNumber 1 2 3 Mass_mg 139.4 114.2 123.1 125.567 lb/mmBtuO2 4.12E-02 3.65E-02 3.65E-02 0.038 

### Compound: Organic Condensible Particulate Average RunNumber 1 2 3 Mass_mg 7.2 29.7 9 15.300 lb/mmBtuO2 2.13E-03 9.49E-03 2.67E-03 0.005 

### Compound: Total Particulate Average RunNumber 1 2 3 Mass_mg 154.4 154.1 140.4 149.633 lb/mmBtuO2 4.57E-02 4.93E-02 4.16E-02 0.046 

### Compound: Total PM2.5 Average RunNumber 1 2 3 Mass_mg 151.1 149.9 136.6 145.867 lb/mmBtuO2 4.47E-02 4.79E-02 4.05E-02 0.044



### Friday, February 11, 2011 Page 18 of 33

### Dynegy Danskammer Unit 2

Process Run Data



### Run Name Value UOM Comments Target Value 1 Average Heat Input 489.27 MMBtu/hr 0


### 10 Average Heat Input 513.97 MMBtu/hr 0
11 Average Heat Input 509.27 MMBtu/hr 0
12 Average Heat Input 508.21 MMBtu/hr 0


### 2 Average Heat Input 491.43 MMBtu/hr 0
3 Average Heat Input 513.49 MMBtu/hr 0
4 Average Heat Input 514.87 MMBtu/hr 0


### 5 Average Heat Input 511.72 MMBtu/hr 0
6 Average Heat Input 504.25 MMBtu/hr 0
7 Average Heat Input 489.68 MMBtu/hr 0


### 8 Average Heat Input 489.85 MMBtu/hr 0
9 Average Heat Input 493.46 MMBtu/hr 0
1 Fuel Oil Firing Rate 49.78 gal/min 0


### 10 Fuel Oil Firing Rate 51.76 gal/min 0
11 Fuel Oil Firing Rate 51.09 gal/min 0
12 Fuel Oil Firing Rate 51.28 gal/min 0


### 2 Fuel Oil Firing Rate 49.29 gal/min 0
3 Fuel Oil Firing Rate 50.24 gal/min 0
4 Fuel Oil Firing Rate 54.52 gal/min 0


### 5 Fuel Oil Firing Rate 53.9 gal/min 0
6 Fuel Oil Firing Rate 52.39 gal/min 0
7 Fuel Oil Firing Rate 50.1 gal/min 0


### 8 Fuel Oil Firing Rate 49.58 gal/min 0
9 Fuel Oil Firing Rate 49.39 gal/min 0


### 1 Unit Gross Electrical Output 38.65 Mwe Run 1 0
10 Unit Gross Electrical Output 39.36 Mwe Run 3 0
11 Unit Gross Electrical Output 39.29 Mwe Run 2 0


### 12 Unit Gross Electrical Output 39.19 Mwe Run 1 0
2 Unit Gross Electrical Output 38.05 Mwe Run 2 0
3 Unit Gross Electrical Output 38.67 Mwe Run 3 0


### 4 Unit Gross Electrical Output 40.74 Mwe Run 1 0
5 Unit Gross Electrical Output 41 Mwe Run 2 0
6 Unit Gross Electrical Output 41.02 Mwe Run 3 0



### Friday, February 11, 2011 Page 19 of 33

### Dynegy Danskammer Unit 2

APCD Run Data 7 Unit Gross Electrical Output 38.74 Mwe Run 1 0


### 8 Unit Gross Electrical Output 38.69 Mwe Run 2 0
9 Unit Gross Electrical Output 38.17 Mwe Run 3 0
1 Opacity 2.97 % Dioxin/Furan Organic HAP Group 0

10 Opacity 2.13 % Acid Gas HAP Group 0



### 11 Opacity 2.1 % Acid Gas HAP Group 0

12 Opacity 2.14 % Acid Gas HAP Group 0



### 2 Opacity 2.54 % Dioxin/Furan Organic HAP Group 0

3 Opacity 2.54 % Dioxin/Furan Organic HAP Group 0

4 Opacity 2.37 % Non-Dioxin Organic HAP Group 0

5 Opacity 2.5 % Non-Dioxin Organic HAP Group 0



### 6 Opacity 2.27 % Non-Dioxin Organic HAP Group 0

7 Opacity 2.84 % Mercury and Metallic HAP Group 0

8 Opacity 3.44 % Mercury and Metallic HAP Group 0

9 Opacity 2.59 % Mercury and Metallic HAP Group 0



### 1 Heat Input 489.27 Million Btus/million BTU using CO2 0

Run Name Value UOM Comments Target Value 1 ELECTROSTATIC PRECIPITATOR 0 kV 0


### 10 ELECTROSTATIC PRECIPITATOR 0 kV 0
11 ELECTROSTATIC PRECIPITATOR 0 kV 0
12 ELECTROSTATIC PRECIPITATOR 0 kV 0



### Friday, February 11, 2011 Page 20 of 33

### Dynegy Danskammer Unit 2

Process Lab Run Data 2 ELECTROSTATIC PRECIPITATOR 0 kV 0


### 3 ELECTROSTATIC PRECIPITATOR 0 kV 0
4 ELECTROSTATIC PRECIPITATOR 0 kV 0
5 ELECTROSTATIC PRECIPITATOR 0 kV 0


### 6 ELECTROSTATIC PRECIPITATOR 0 kV 0
7 ELECTROSTATIC PRECIPITATOR 0 kV 0
8 ELECTROSTATIC PRECIPITATOR 0 kV 0


### 9 ELECTROSTATIC PRECIPITATOR 0 kV 0
1 0 0
10 0 0


### 11 0 0
12 0 0
2 0 0


### 3 0 0
4 0 0
5 0 0


### 6 0 0
7 0 0
8 0 0


### 9 0 0
1 0 0


### 10 0 0
11 0 0
12 0 0


### 2 0 0
3 0 0
4 0 0


### 5 0 0
6 0 0
7 0 0


### 8 0 0
9 0 0

Run Name Value UOM Comments 1 Moisture As Received 0 %



### Friday, February 11, 2011 Page 21 of 33

### Dynegy Danskammer Unit 2

2 Moisture As Received 0 % 

### 3 Moisture As Received 0 % 1 Ash As Received 0 % 2 Ash As Received 0 % 3 Ash As Received 0 % 

### 1 Carbon As Received 0 % 2 Carbon As Received 0 % 3 Carbon As Received 0 % 

### 1 Hydrogen (Excl. H in Moisture) As Received 0 % 2 Hydrogen (Excl. H in Moisture) As Received 0 % 3 Hydrogen (Excl. H in Moisture) As Received 0 % 1 Hydrogen (Incl. H in Moisture) As Received 0 % 

### 2 Hydrogen (Incl. H in Moisture) As Received 0 % 3 Hydrogen (Incl. H in Moisture) As Received 0 % 1 Nitrogen AS Received 0 % 

### 2 Nitrogen AS Received 0 % 3 Nitrogen AS Received 0 % 1 Oxygen (Excl. O in Moisture) As Received 0 % 2 Oxygen (Excl. O in Moisture) As Received 0 % 

### 3 Oxygen (Excl. O in Moisture) As Received 0 % 1 Oxygen (Incl. O in Moisture) As Received 0 % 2 Oxygen (Incl. O in Moisture) As Received 0 % 

### 3 Oxygen (Incl. O in Moisture) As Received 0 % 1 Fixed Carbon As Received 0 % 2 Fixed Carbon As Received 0 % 3 Fixed Carbon As Received 0 % 

### 1 Heating Value As Received 0 Btu/lb 2 Heating Value As Received 0 Btu/lb 3 Heating Value As Received 0 Btu/lb 

### 1 Sulfur As Received 0 % 2 Sulfur As Received 0 % 3 Sulfur As Received 0 % 1 Volatile Matter As Received 0 % 

### 2 Volatile Matter As Received 0 % 3 Volatile Matter As Received 0 % 1 Ash Dry Basis 0 % 

### 2 Ash Dry Basis 0 % 3 Ash Dry Basis 0 % 1 Carbon Dry Basis 0 % 2 Carbon Dry Basis 0 % 

### 3 Carbon Dry Basis 0 % 1 Hydrogen (Excl. H in Moisture) Dry Basis 0 % 2 Hydrogen (Excl. H in Moisture) Dry Basis 0 %



### Friday, February 11, 2011 Page 22 of 33

### Dynegy Danskammer Unit 2

3 Hydrogen (Excl. H in Moisture) Dry Basis 0 % 

### 1 Nitrogen Dry Basis 0 % 2 Nitrogen Dry Basis 0 % 3 Nitrogen Dry Basis 0 % 1 Oxygen (Excl. O in Moisture) Dry Basis 0 % 

### 2 Oxygen (Excl. O in Moisture) Dry Basis 0 % 3 Oxygen (Excl. O in Moisture) Dry Basis 0 % 1 Fixed Carbon Dry Basis 0 % 

### 2 Fixed Carbon Dry Basis 0 % 3 Fixed Carbon Dry Basis 0 % 1 Heating Value Dry Basis 0 Btu/lb 2 Heating Value Dry Basis 0 Btu/lb 

### 3 Heating Value Dry Basis 0 Btu/lb 1 Sulfur Dry Basis 0 % 2 Sulfur Dry Basis 0 % 

### 3 Sulfur Dry Basis 0 % 1 Volatile Matter Dry Basis 0 % 2 Volatile Matter Dry Basis 0 % 3 Volatile Matter Dry Basis 0 % 

### 1 Phosphorus 0 % 1 Antimony 0 % 1 Arsenic 0 % 

### 1 Beryllium 0 % 1 Cadmium 0 % 1 Chromium 0 % 1 Cobalt 0 % 

### 1 Lead 0 % 1 Manganese 0 % 1 Nickel 0 % 

### 1 Selenium 0 %

Friday, February 11, 2011 Page 23 of 33

### Dynegy Danskammer Unit 2

Sampling / Stack Data Results Detail



### Location Stack Exit - Method 0011 Average Run Number 1 2 3 Test Date 7/21/2010 7/21/2010 7/21/2010 Run Start Time 12:00:00 AM 12:00:00 PM 12:00:00 AM Run Finish Time 11:32:00 AM 2:27:00 PM 5:58:00 AM Net Traversing Points 120 120 120 Net Run Time, minutes 120 120 120 Nozzle Diameter, inches 0.346 0.346 0.346 0.346 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 0.992 0.992 0.992 0.992 Barometric Pressure, inches of Mercury 29.8 29.8 29.8 29.800 Average Orifice Meter Differential, inches H2O 2.16 2.14 2.18 2.160 Dry Gas Meter Volume Sampled, cubic feet 100.772 101.171 100.904 100.949 Average Dry Gas Meter Temperature, °F 119.29 126.07 113.56 119.640 Dry Gas Meter Volume Sampled, dscf 91.233 90.530 92.270 91.344 Total Moisture Liquid collected, g 183.5 181.6 178.7 181.267 Volume of Water Vapor, standard cubic feet 8.64 8.55 8.41 8.533 Moisture Content of Stack Gas, % 8.65 8.63 8.35 8.543 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Dry Mole Fraction 0.9135 0.9137 0.9165 0.915 Carbon Dioxide, % 9.4 9.3 9.4 9.367 Oxygen, % 9 9.1 9.1 9.067 Carbon Monoxide & Nitrogen, % 81.6 81.6 81.5 81.567 Fuel Factor 1.27 1.27 1.26 Dry Molecular Weight, lb/lb-Mole 29.86 29.85 29.87 29.860 Wet Molecular weight, lb/lb-Mole 28.83 28.83 28.88 28.847 Flue Gas Static Pressure, inches of H2O -0.32 -0.36 -0.36 -0.347 Absolute Flue Gas Pressure, inches of Mercury 29.78 29.77 29.77 29.773 Average Stack Gas Temperature, °F 301.89 305.55 305.53 304.323 Average Velocity Head, inches of H2O 0.1992587098 43853 0.196683668

548346 0.203728837

948236 0.200
Average Stack Gas Velocity, feet/second 30.20 30.08 30.59 30.290 Stack Cross-Sectional Area, square feet 113.097 113.097 113.097 113.097 Dry Volumetric Flow Rate, dry scfm 129,128.6 127,985.7 130,557.9 129,224.067 Actual Wet Volumetric Flue Gas Flow Rate, acfm 204,931.8 204,117.5 207,578.2 205,542.500 Percent Isokinetic of Sampling Rate, % 102.0 102.1 102.0 102.033 Percent Excess Air, % 71.8 73.1 73.3 72.733 F-Factor, dscfm/MMBtu @ %O2 9418 9418 9418 9,418.000 Round Duct Diameter, inches 144 144 144 Rectangular Duct Width, inches 0 0 0 Rectangular Duct Length, inches 0 0 0 Fw 0 0 0 0.000 Fc 0 0 0 0.000



### Friday, February 11, 2011 Page 24 of 33

### Dynegy Danskammer Unit 2

Location Stack Exit - 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 11, 2011 Page 25 of 33

### Dynegy Danskammer Unit 2

Location Stack Exit - Method 23 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 11, 2011 Page 26 of 33

### Dynegy Danskammer Unit 2

Location Stack Exit - 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 11, 2011 Page 27 of 33

### Dynegy Danskammer Unit 2

Location Stack Exit - Method 26 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 11, 2011 Page 28 of 33

### Dynegy Danskammer Unit 2

Location Stack Exit - 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 11, 2011 Page 29 of 33

### Dynegy Danskammer Unit 2

Location Stack Exit - Method 6C 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 11, 2011 Page 30 of 33

### Dynegy Danskammer Unit 2

Location Stack Exit - Method 7E 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 11, 2011 Page 31 of 33

### Dynegy Danskammer Unit 2

Location Stack Exit - 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 11, 2011 Page 32 of 33

### Dynegy Danskammer Unit 2

Location Stack Exit - SW0010 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 11, 2011 Page 33 of 33