### Name:

Title: Company: Sign Date: Name: Title: Company: Sign Date: Permitted Facility Representative / Date Testing Company Representative / Date 

## Duck Creek 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.

Tuesday, January 18, 2011 Page 1 of 17

### Duck Creek Unit 1

Facility Information: Duck Creek 17751 N.CILCO Rd

Canton IL61520 Contact:Donald Schuh Phone:314-554-2658 Fax: 314-554-4182 Email: dschuh@ameren.com Testing Company: Clean Air Engineering 500 West Wood Street

Palatine IL60067 Contact:Bill Ansell Phone:847-654-4545 Fax: 847-991-3385 Email:bansell@cleanair.com

Air Permit Number: 6016 Permitted Source ID/Name: Enter the Boiler ID of the tested boiler (left) 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: Duck Creek Power Plant consists of a single coal-fired generating unit. Unit 1 is a front-wall-fired Riley Stoker boiler and is rated at approximately 4,500 MMBtu/hr heat input. The boiler fires a mix of sub-bituminous and bituminous coal. Unit 1 is equipped with low NOX burners and a selective catalytic reduction (SCR) system to reduce NOX emissions, an electrostatic precipitator (ESP) to control particulate emissions and a wet flue gas desulfurization (FGD) system to control acid gas and mercury emissions. Industry/SCC/NAIS221112

Sampling Location Information:

Test Parameter Information: AFS #:1705700035 FRS #:110000437947

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 261 2740.5 2401.2 4 0 12 0 0

Target Parameter Test Method Number of

Test RunsTest Run

DurationSample

Points Comments LocationHydrogen Fluoride Method 26A 3 180 0 Stack Exit Hydrogen Chloride Method 26A 3 180 0 Stack Exit



### Tuesday, January 18, 2011 Page 2 of 17

### Duck Creek Unit 1

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. O2 and CO2 data (units of dry volume percent, %dv) used in molecular weight calculations, O2 correction and calculation of Fd-based emissions (units of lb/MMBtu) were obtained in the following manner during the test program: •	Multi-point, integrated gas samples (IGS) were continuously collected at a constant rate from a slipstream of the exhaust of the sample trains into a flexible vinyl bag (IGS bag), per Method 3B specifications. •	A calibrated paramagnetic/IR analyzer was used in place of a traditional Orsat analyzer to measure drift-corrected O2 and CO2 concentrations of the IGS bags, per Method 3A specifications.

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

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

Organic Condensible

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

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

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

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

Cobalt Method 29 0 Stack Exit Antimony Method 29 3 240 0 Stack Exit Selenium Method 29 3 240 0 Stack Exit Nickel Method 29 3 240 0 Stack Exit Manganese Method 29 3 240 0 Stack Exit Lead Method 29 3 240 0 Stack Exit Chromium Method 29 3 240 0 Stack Exit Cadmium Method 29 3 240 0 Stack Exit Beryllium Method 29 3 240 0 Stack Exit Arsenic Method 29 3 240 0 Stack Exit Total Particulate Method 5/OTM-28 3 240 0 Stack Exit Organic Condensible

Particulate Method 5/OTM-28 3 240 0 Stack Exit Inorganic (Aqueous)

Condensible Part. Method 5/OTM-28 3 240 0 Stack Exit

Filterable Particulate Method 5/OTM-28 3 240 0 Stack Exit



### Tuesday, January 18, 2011 Page 3 of 17

### Duck Creek Unit 1

Sampling / Stack Data Results Summary 

### LocationStack Exit - Method 26A Average Run Number 1 2 3 Test Date 6/8/2010 6/9/2010 6/10/2010 Run Start Time 2:18:00 PM1:24:00 PM 1:03:00 PM Run Finish Time 3:13:00 PM2:19:00 PM 1:58:00 PM Net Run Time, minutes 60 60 60 Dry Gas Meter Volume Sampled, dscf 40.161 42.181 41.297 41.213 Moisture Content of Stack Gas, % 23.95 24.12 24.26 24.110 Moisture Saturation at Stack Gas Temperature, % 17.61 18.00 17.72 17.777 Carbon Dioxide, % 12.6 13 9.5 11.700 Oxygen, % 6.6 6.5 6.6 6.567 Average Stack Gas Temperature, °F 134.67 135.50 134.92 135.030 Dry Volumetric Flow Rate, dry scfm 1,013,752.01,025,317.1 1,021,607.91,020,225.66 7 Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,428,281.81,453,472.3 1,441,880.21,441,211.43 3 Percent Isokinetic of Sampling Rate, % 102.0 105.9 104.1 104.000 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Fw 10640 10640 10640 10,640.000 Fc 1800 1800 1800 1,800.000



### Tuesday, January 18, 2011 Page 4 of 17

### Duck Creek Unit 1

LocationStack Exit - Method 29 Average Run Number 1 2 3 Test Date 6/8/2010 6/9/2010 6/10/2010 Run Start Time 8:43:00 AM 8:12:00 AM7:53:00 AM

Run Finish Time 12:38:00 PM 12:07:00 PM11:48:00 AM

Net Run Time, minutes 240 240 240 Dry Gas Meter Volume Sampled, dscf 128.473 131.703 133.326 131.167 Moisture Content of Stack Gas, % 17.75 18.31 16.77 17.610 Moisture Saturation at Stack Gas Temperature, % 17.71 18.14 17.77 17.873 Carbon Dioxide, % 12.6 13 12.3 12.633 Oxygen, % 6.5 6.1 6.8 6.467 Average Stack Gas Temperature, °F 134.88 135.81 135.02 135.237 Dry Volumetric Flow Rate, dry scfm 1,011,848.21,042,804.3 1,067,734.61,040,795.70 0 Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,427,835.91,481,560.9 1,490,032.01,466,476.26 7 Percent Isokinetic of Sampling Rate, % 100.9 100.4 99.2 100.167 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9751 9,770.333 Fw 10640 10640 10640 10,640.000 Fc 1800 1800 1800 1,800.000



### Tuesday, January 18, 2011 Page 5 of 17

### Duck Creek Unit 1

LocationStack Exit - Method 5/OTM-28 Average Run Number 1 2 3 Test Date 6/8/2010 6/9/2010 6/10/2010 Run Start Time 8:43:00 AM 8:12:00 AM7:53:00 AM

Run Finish Time 12:38:00 PM 12:07:00 PM11:48:00 AM

Net Run Time, minutes 240 240 240 Dry Gas Meter Volume Sampled, dscf 163.001 164.065 167.521 164.862 Moisture Content of Stack Gas, % 17.70 18.02 17.48 17.733 Moisture Saturation at Stack Gas Temperature, % 17.27 17.69 17.40 17.453 Carbon Dioxide, % 12.7 13 12.5 12.733 Oxygen, % 6.7 6.1 6.5 6.433 Average Stack Gas Temperature, °F 133.94 134.85 134.21 134.333 Dry Volumetric Flow Rate, dry scfm 1,062,454.71,052,599.4 1,081,734.71,065,596.26 7 Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,488,917.41,484,904.8 1,519,012.31,497,611.50 0 Percent Isokinetic of Sampling Rate, % 100.7 102.3 101.6 101.533 F-Factor, dscfm/MMBtu @ %O2 9756 9665 9751 9,724.000 Fw 0 0 0 0.000 Fc 0 0 0 0.000



### Tuesday, January 18, 2011 Page 6 of 17

### Duck Creek Unit 1

Emissions Summary 

### Location: Stack Exit - Method 26A Compound: Hydrogen Chloride Average RunNumber 1 2 3 Mass_mg 0.2291 0.7283 1.0276 0.662 Elb/hr 7.65E-01 2.34E+00 3.36E+00 2.155 lb/mmBtuO2 1.80E-04 5.40E-04 7.84E-04 0.001 mg/dscm 2.01E-01 6.10E-01 8.79E-01 0.563 mg/dscm@7%O2 1.95E-01 5.89E-01 8.54E-01 0.546 

### Compound: Hydrogen Fluoride Average RunNumber 1 2 3 Mass_mg 0.6057 0.6065 0.5644 0.592 Elb/hr 2.02E+00 1.95E+00 1.85E+00 1.940 lb/mmBtuO2 4.75E-04 4.50E-04 4.31E-04 0.000 mg/dscm 5.33E-01 5.08E-01 4.83E-01 0.508 mg/dscm@7%O2 5.18E-01 4.90E-01 4.69E-01 0.492



### Location: Stack Exit - Method 29 

### Compound:Antimony Average RunNumber 1 2 3 Mass_mg 0.0003518 0.0002 0.0035191 0.001 Elb/hr 3.67E-04 2.09E-04 3.73E-03 0.001 lb/mmBtuO2 8.57E-08 4.62E-08 8.41E-07 0.000 mg/dscm 9.67E-05 5.36E-05 9.32E-04 0.000 mg/dscm@7%O2 9.33E-05 5.03E-05 9.19E-04 0.000 

### Compound:Arsenic Average RunNumber 1 2 3 Mass_mg 0.003469 0.0032105 0.0012889 0.003 Elb/hr 3.61E-03 3.36E-03 1.37E-03 0.003 lb/mmBtuO2 8.45E-07 7.42E-07 3.08E-07 0.000 mg/dscm 9.54E-04 8.61E-04 3.41E-04 0.001 mg/dscm@7%O2 9.21E-04 8.09E-04 3.36E-04 0.001 

### Compound: Beryllium Average RunNumber 1 2 3 Mass_mg 0.0000735 0.0000709 0.0000536 0.000 Elb/hr 7.66E-05 7.43E-05 5.68E-05 0.000 lb/mmBtuO2 1.79E-08 1.64E-08 1.28E-08 0.000 mg/dscm 2.02E-05 1.90E-05 1.42E-05 0.000 mg/dscm@7%O2 1.95E-05 1.78E-05 1.40E-05 0.000 

### Compound: Cadmium Average RunNumber 1 2 3 Mass_mg 0.0003065 0.0002683 0.0002245 0.000 

### Tuesday, January 18, 2011 Page 7 of 17

### Duck Creek Unit 1

Elb/hr 3.19E-04 2.81E-04 2.38E-04 0.000 lb/mmBtuO2 7.47E-08 6.20E-08 5.37E-08 0.000 mg/dscm 8.43E-05 7.20E-05 5.95E-05 0.000 mg/dscm@7%O2 8.14E-05 6.76E-05 5.87E-05 0.000 

### Compound: Chromium Average RunNumber 1 2 3 Mass_mg 0.0041698 0.0035358 0.0034528 0.004 Elb/hr 4.34E-03 3.70E-03 3.66E-03 0.004 lb/mmBtuO2 1.02E-06 8.17E-07 8.25E-07 0.000 mg/dscm 1.15E-03 9.48E-04 9.15E-04 0.001 mg/dscm@7%O2 1.11E-03 8.90E-04 9.02E-04 0.001 

### Compound: Cobalt Average RunNumber 1 2 3 Mass_mg 0.0002612 0.0002848 0.0002145 0.000 Elb/hr 2.72E-04 2.98E-04 2.27E-04 0.000 lb/mmBtuO2 6.36E-08 6.58E-08 5.13E-08 0.000 mg/dscm 7.18E-05 7.64E-05 5.68E-05 0.000 mg/dscm@7%O2 6.93E-05 7.18E-05 5.60E-05 0.000 

### Compound:Lead Average RunNumber 1 2 3 Mass_mg 0.0014293 0.001237 0.0007369 0.001 Elb/hr 1.49E-03 1.30E-03 7.81E-04 0.001 lb/mmBtuO2 3.48E-07 2.86E-07 1.76E-07 0.000 mg/dscm 3.93E-04 3.32E-04 1.95E-04 0.000 mg/dscm@7%O2 3.79E-04 3.12E-04 1.92E-04 0.000 

### Compound:Manganese Average RunNumber 1 2 3 Mass_mg 0.004748 0.0040191 0.0028256 0.004 Elb/hr 4.95E-03 4.21E-03 2.99E-03 0.004 lb/mmBtuO2 1.16E-06 9.29E-07 6.75E-07 0.000 mg/dscm 1.31E-03 1.08E-03 7.49E-04 0.001 mg/dscm@7%O2 1.26E-03 1.01E-03 7.38E-04 0.001 

### Compound:Nickel Average RunNumber 1 2 3 Mass_mg 0.0042697 0.0028335 0.0024768 0.003 Elb/hr 4.45E-03 2.97E-03 2.62E-03 0.003 lb/mmBtuO2 1.04E-06 6.55E-07 5.92E-07 0.000 mg/dscm 1.17E-03 7.60E-04 6.56E-04 0.001 mg/dscm@7%O2 1.13E-03 7.14E-04 6.47E-04 0.001 

### Compound: Selenium Average RunNumber 1 2 3 Mass_mg 0.0486295 0.0433057 0.0181876 0.037 

### Tuesday, January 18, 2011 Page 8 of 17

### Duck Creek Unit 1

Process Run Data Elb/hr 5.07E-02 4.54E-02 1.93E-02 0.038 lb/mmBtuO2 1.18E-05 1.00E-05 4.35E-06 0.000 mg/dscm 1.34E-02 1.16E-02 4.82E-03 0.010 mg/dscm@7%O2 1.29E-02 1.09E-02 4.75E-03 0.010



### Location: Stack Exit - Method 5/OTM-28 

### Compound:Filterable Particulate Average RunNumber 1 2 3 Mass_mg 17.87 14.43 19.78 17.360 lb/mmBtuO2 3.47E-03 2.65E-03 3.68E-03 0.003 

### Compound: Inorganic (Aqueous) Condensible Pa Average RunNumber 1 2 3 Mass_mg 21.41 14.97 12.86 16.413 lb/mmBtuO2 4.16E-03 2.75E-03 2.40E-03 0.003 

### Compound: Organic Condensible Particulate Average RunNumber 1 2 3 Mass_mg 0.26 0.3 0.23 0.263 lb/mmBtuO2 5.05E-05 5.50E-05 4.28E-05 0.000 

### Compound: Total Particulate Average RunNumber 1 2 3 Mass_mg 39.54 29.7 32.87 34.037 lb/mmBtuO2 7.68E-03 5.45E-03 6.12E-03 0.006



### Tuesday, January 18, 2011 Page 9 of 17

### Duck Creek Unit 1

Process Run Data



### Run Name Value UOM Comments Target Value 1 Coal Firing Rate 435 klb/hr 435 

### 2 Coal Firing Rate 0 klb/hr 435 3 Coal Firing Rate 0 klb/hr 435 4 Coal Firing Rate 0 klb/hr 435 

### 5 Coal Firing Rate 480 klb/hr 435 6 Coal Firing Rate 468 klb/hr 435 1 Average Heat Input 5284 MMBtu/hr 5284 

### 2 Average Heat Input 0 MMBtu/hr 5284 3 Average Heat Input 0 MMBtu/hr 5284 4 Average Heat Input 0 MMBtu/hr 5284 

### 5 Average Heat Input 6025 MMBtu/hr 5284 6 Average Heat Input 5539 MMBtu/hr 5284 1 Steam Output 29541000 lb steam/hr2954 

### 2 Steam Output 01000 lb steam/hr2954 3 Steam Output 01000 lb steam/hr2954 4 Steam Output 01000 lb steam/hr2954 

### 5 Steam Output 29401000 lb steam/hr2954 6 Steam Output 30531000 lb steam/hr2954 1 0 0 

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

### 5 0 0 6 0 0 

### 1 0 0 2 0 0 3 0 0 

### 4 0 0 5 0 0 6 0 0 

### 1 Coal Gas Firing Rate 0 0 2 Coal Gas Firing Rate 0 0 3 Coal Gas Firing Rate 0 0



### Tuesday, January 18, 2011 Page 10 of 17

### Duck Creek Unit 1

4 Coal Gas Firing Rate 0 0 

### 5 Coal Gas Firing Rate 0 0 6 Coal Gas Firing Rate 0 0 1 0 0 

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

### 5 0 0 6 0 0 1 0 dscfm 0 

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

### 5 0 dscfm 0 6 0 dscfm 0 1 Pressure Drop Across FGD (if applicable) 0 in H20 0 

### 2 Pressure Drop Across FGD (if applicable) 0 in H20 0 3 Pressure Drop Across FGD (if applicable) 0 in H20 0 4 Pressure Drop Across FGD (if applicable) 0 in H20 0 

### 5 Pressure Drop Across FGD (if applicable) 0 in H20 0 6 Pressure Drop Across FGD (if applicable) 0 in H20 0 

### 1 0 0 2 0 0 3 0 0 

### 4 0 0 5 0 0 6 0 0 

### 1 FGD Scrubber Liquor Flow Rate 0 gal/min 0 2 FGD Scrubber Liquor Flow Rate 0 gal/min 0 3 FGD Scrubber Liquor Flow Rate 0 gal/min 0 

### 4 FGD Scrubber Liquor Flow Rate 0 gal/min 0 5 FGD Scrubber Liquor Flow Rate 0 gal/min 0 6 FGD Scrubber Liquor Flow Rate 0 gal/min 0 

### 1 Sorbent Type and Sorbent Injection Rate (if applicable) 0 lb/hr 0

2 Sorbent Type and Sorbent Injection Rate (if applicable) 0 lb/hr 0



### Tuesday, January 18, 2011 Page 11 of 17

### Duck Creek Unit 1

3 Sorbent Type and Sorbent Injection Rate (if applicable) 0 lb/hr 0



### 4 Sorbent Type and Sorbent Injection Rate (if applicable) 0 lb/hr 0

5 Sorbent Type and Sorbent Injection Rate (if applicable) 0 lb/hr 0

6 Sorbent Type and Sorbent Injection Rate (if applicable) 0 lb/hr 0



### 1 Flue Gas Oxygen Content 6.6 % 6.6 2 Flue Gas Oxygen Content 0 % 6.6 3 Flue Gas Oxygen Content 0 % 6.6 

### 4 Flue Gas Oxygen Content 0 % 6.6 5 Flue Gas Oxygen Content 6.1 % 6.6 6 Flue Gas Oxygen Content 6.5 % 6.6 

### 1 Flue Gas Carbon Dioxide Content 12.6 % 12.6 2 Flue Gas Carbon Dioxide Content 0 % 12.6 3 Flue Gas Carbon Dioxide Content 0 % 12.6 

### 4 Flue Gas Carbon Dioxide Content 0 % 12.6 5 Flue Gas Carbon Dioxide Content 13 % 12.6 6 Flue Gas Carbon Dioxide Content 12.4 % 12.6 

### 1 Flue Gas Moisture Content 17.6 % 17.6 2 Flue Gas Moisture Content 0 % 17.6 3 Flue Gas Moisture Content 0 % 17.6 

### 4 Flue Gas Moisture Content 0 % 17.6 5 Flue Gas Moisture Content 17.8 % 17.6 6 Flue Gas Moisture Content 17.4 % 17.6 

### 1 Flue Gas Sampling Point Temperature 135 Deg F 135 2 Flue Gas Sampling Point Temperature 0 Deg F 135 3 Flue Gas Sampling Point Temperature 0 Deg F 135 

### 4 Flue Gas Sampling Point Temperature 0 Deg F 135 5 Flue Gas Sampling Point Temperature 135 Deg F 135 6 Flue Gas Sampling Point Temperature 134 Deg F 135 

### 1 Flue Gas Pressure 0.97 atm 0.97 2 Flue Gas Pressure 0 atm 0.97 3 Flue Gas Pressure 0 atm 0.97 

### 4 Flue Gas Pressure 0 atm 0.97 5 Flue Gas Pressure 0.97 atm 0.97 6 Flue Gas Pressure 0.97 atm 0.97



### Tuesday, January 18, 2011 Page 12 of 17

### Duck Creek Unit 1

APCD Run Data

Process Lab Run Data 1 Standard Pressure 1 atm 1 

### 2 Standard Pressure 0 atm 1 3 Standard Pressure 0 atm 1 4 Standard Pressure 0 atm 1 

### 5 Standard Pressure 1 atm 1 6 Standard Pressure 1 atm 1 1 Standard Temperature 68 Deg F 68 

### 2 Standard Temperature 0 Deg F 68 3 Standard Temperature 0 Deg F 68 4 Standard Temperature 0 Deg F 68 

### 5 Standard Temperature 68 Deg F 68 6 Standard Temperature 68 Deg F 68 1 Unit Gross Electrical Output 446 MW 446 

### 2 Unit Gross Electrical Output 0 MW 446 3 Unit Gross Electrical Output 0 MW 446 4 Unit Gross Electrical Output 0 MW 446 

### 5 Unit Gross Electrical Output 465 MW 446 6 Unit Gross Electrical Output 448 MW 446 1 Unit Net Electric Generation 409 MWh 409 

### 2 Unit Net Electric Generation 0 MWh 409 3 Unit Net Electric Generation 0 MWh 409 

### 4 Unit Net Electric Generation 0 MWh 409 5 Unit Net Electric Generation 423.4 MWh 409 6 Unit Net Electric Generation 415 MWh 409

Run Name Value UOM Comments Target Value 

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

### 1 WET SCRUBBER 0 0

Run Name ValueUOM Comments 1 Fuel Higher Heating Value 9756Btu/lb 1 Fuel Moisture 25.29 %



### Tuesday, January 18, 2011 Page 13 of 17

### Duck Creek Unit 1

1 Fuel Mercury Content 0.056 ug/g 

### 1 Fuel Cadmium Content 1.82ug/g dry 1 Ultimate/Proximate Analysis 0 1 Fuel Nickel Content 6.57ug/g dry 1 Fuel Arsenic Content 1.08ug/g dry 

### 1 Fuel Chromium Content 6.92ug/g dry 1 Fuel Beryllium Content 0.592ug/g dry 1 Fuel Lead Content 6.07ug/g dry 

### 1 Fuel Manganese Content 18.5ug/g dry 1 Fuel Chlorine Content 0.027Wt. % 1 Fuel Fluorine Content 55ug/g dry coal 2 Fuel Higher Heating Value 9145Btu/lb 

### 2 Fuel Moisture 24.32 % 2 Fuel Mercury Content 0.047 ug/g 2 Fuel Cadmium Content 0.134ug/g dry 

### 2 Ultimate/Proximate Analysis 0 2 Fuel Nickel Content 5.47ug/g dry 2 Fuel Arsenic Content 1.18ug/g dry 2 Fuel Chromium Content 6.58ug/g dry 

### 2 Fuel Beryllium Content 0.533ug/g dry 2 Fuel Lead Content 2.79ug/g dry 2 Fuel Manganese Content 19.1ug/g dry 

### 2 Fuel Chlorine Content 0.027Wt. % 2 Fuel Fluorine Content 57ug/g dry coal 3 Fuel Higher Heating Value 9156Btu/lb 3 Fuel Moisture 24.57 % 

### 3 Fuel Mercury Content 0.043 ug/g 3 Fuel Cadmium Content 0.112ug/g dry 3 Ultimate/Proximate Analysis 0 

### 3 Fuel Nickel Content 5.7ug/g dry 3 Fuel Arsenic Content 1.11ug/g dry 3 Fuel Chromium Content 6.82ug/g dry 3 Fuel Beryllium Content 0.573ug/g dry 

### 3 Fuel Lead Content 2.2ug/g dry 3 Fuel Manganese Content 19.4ug/g dry 3 Fuel Chlorine Content 0.026Wt. % 

### 3 Fuel Fluorine Content 59.3ug/g dry coal

Tuesday, January 18, 2011 Page 14 of 17

### Duck Creek Unit 1

Sampling / Stack Data Results Detail 

### LocationStack Exit - Method 26A Average Run Number 1 2 3 Test Date 6/8/2010 6/9/2010 6/10/2010 Run Start Time 2:18:00 PM1:24:00 PM 1:03:00 PM Run Finish Time 3:13:00 PM2:19:00 PM 1:58:00 PM Net Traversing Points 12 12 12 Net Run Time, minutes 60 60 60 Nozzle Diameter, inches 0.21 0.21 0.21 0.210 Pitot Tube Coefficient 0.807 0.807 0.807 0.807 Dry Gas Meter Calibration Factor 1.0085 1.0085 1.0085 1.009 Barometric Pressure, inches of Mercury 29.1 29.1 29.1 29.100 Average Orifice Meter Differential, inches H2O 1.59 1.64 1.58 1.603 Dry Gas Meter Volume Sampled, cubic feet 41.727 44.260 43.388 43.125 Average Dry Gas Meter Temperature, °F 80.25 85.67 86.29 84.070 Dry Gas Meter Volume Sampled, dscf 40.161 42.181 41.297 41.213 Total Moisture Liquid collected, g 268.8 285 281.1 278.300 Volume of Water Vapor, standard cubic feet 12.65 13.41 13.23 13.097 Moisture Content of Stack Gas, % 23.95 24.12 24.26 24.110 Moisture Saturation at Stack Gas Temperature, % 17.61 18.00 17.72 17.777 Dry Mole Fraction 0.8239 0.82 0.8228 0.822 Carbon Dioxide, % 12.6 13 9.5 11.700 Oxygen, % 6.6 6.5 6.6 6.567 Carbon Monoxide & Nitrogen, % 80.8 80.5 83.9 81.733 Fuel Factor 1.13 1.11 1.51 Dry Molecular Weight, lb/lb-Mole 30.28 30.34 29.78 30.133 Wet Molecular weight, lb/lb-Mole 29.26 29.22 28.87 29.117 Flue Gas Static Pressure, inches of H2O -1 -1 -1 -1.000 Absolute Flue Gas Pressure, inches of Mercury 29.03 29.03 29.03 29.030 Average Stack Gas Temperature, °F 134.67 135.50 134.92 135.030 Average Velocity Head, inches of H2O 1.2318307934 98251.272278193

242361.238108227

31599 1.247 Average Stack Gas Velocity, feet/second 64.07 65.20 64.68 64.650 Stack Cross-Sectional Area, square feet 371.542 371.542 371.542 371.542 Dry Volumetric Flow Rate, dry scfm 1,013,752.01,025,317.1 1,021,607.91,020,225.6 67 Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,428,281.81,453,472.3 1,441,880.21,441,211.4 33 Percent Isokinetic of Sampling Rate, % 102.0 105.9 104.1 104.000 Percent Excess Air, % 44.8 44.1 42.4 43.767 F-Factor, dscfm/MMBtu @ %O2 9780 9780 97809,780.000 Round Duct Diameter, inches 261 261 261 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



### Tuesday, January 18, 2011 Page 15 of 17

### Duck Creek Unit 1

LocationStack Exit - Method 29 Average Run Number 1 2 3 Test Date 6/8/2010 6/9/2010 6/10/2010 Run Start Time 8:43:00 AM8:12:00 AM7:53:00 AM Run Finish Time 12:38:00 PM12:07:00 PM11:48:00 AM Net Traversing Points 48 48 48 Net Run Time, minutes 240 240 240 Nozzle Diameter, inches 0.189 0.189 0.189 0.189 Pitot Tube Coefficient 0.817 0.817 0.817 0.817 Dry Gas Meter Calibration Factor 0.9933 0.9933 0.9933 0.993 Barometric Pressure, inches of Mercury 29.1 29.1 29.1 29.100 Average Orifice Meter Differential, inches H2O 1.06 1.14 1.16 1.120 Dry Gas Meter Volume Sampled, cubic feet 135.920 139.865 142.345 139.377 Average Dry Gas Meter Temperature, °F 81.10 83.26 86.19 83.517 Dry Gas Meter Volume Sampled, dscf 128.473 131.703 133.326 131.167 Total Moisture Liquid collected, g 589.1 627.2 570.9 595.733 Volume of Water Vapor, standard cubic feet 27.73 29.52 26.87 28.040 Moisture Content of Stack Gas, % 17.75 18.31 16.77 17.610 Moisture Saturation at Stack Gas Temperature, % 17.71 18.14 17.77 17.873 Dry Mole Fraction 0.8229 0.8186 0.8323 0.825 Carbon Dioxide, % 12.6 13 12.3 12.633 Oxygen, % 6.5 6.1 6.8 6.467 Carbon Monoxide & Nitrogen, % 80.9 80.9 80.9 80.900 Fuel Factor 1.14 1.14 1.15 Dry Molecular Weight, lb/lb-Mole 30.28 30.32 30.24 30.280 Wet Molecular weight, lb/lb-Mole 28.11 28.12 28.19 28.140 Flue Gas Static Pressure, inches of H2O -1 -1 -1 -1.000 Absolute Flue Gas Pressure, inches of Mercury 29.03 29.03 29.03 29.030 Average Stack Gas Temperature, °F 134.88 135.81 135.02 135.237 Average Velocity Head, inches of H2O 1.1534690810 98031.240659602

224211.259605721

17132 1.218 Average Stack Gas Velocity, feet/second 64.05 66.46 66.84 65.783 Stack Cross-Sectional Area, square feet 371.542 371.542 371.542 371.542 Dry Volumetric Flow Rate, dry scfm 1,011,848.21,042,804.3 1,067,734.61,040,795.7 00 Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,427,835.91,481,560.9 1,490,032.01,466,476.2 67 Percent Isokinetic of Sampling Rate, % 100.9 100.4 99.2 100.167 Percent Excess Air, % 43.7 40.0 46.7 43.467 F-Factor, dscfm/MMBtu @ %O2 9780 9780 97519,770.333 Round Duct Diameter, inches 261 261 261 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



### Tuesday, January 18, 2011 Page 16 of 17

### Duck Creek Unit 1

LocationStack Exit - Method 5/OTM-28 Average Run Number 1 2 3 Test Date 6/8/2010 6/9/2010 6/10/2010 Run Start Time 8:43:00 AM8:12:00 AM7:53:00 AM Run Finish Time 12:38:00 PM12:07:00 PM11:48:00 AM Net Traversing Points 48 48 48 Net Run Time, minutes 240 240 240 Nozzle Diameter, inches 0.208 0.208 0.208 0.208 Pitot Tube Coefficient 0.807 0.807 0.807 0.807 Dry Gas Meter Calibration Factor 1.0085 1.0085 1.0085 1.009 Barometric Pressure, inches of Mercury 29.1 29.1 29.1 29.100 Average Orifice Meter Differential, inches H2O 1.60 1.59 1.64 1.610 Dry Gas Meter Volume Sampled, cubic feet 170.014 171.772 175.426 172.404 Average Dry Gas Meter Temperature, °F 82.36 84.40 84.58 83.780 Dry Gas Meter Volume Sampled, dscf 163.001 164.065 167.521 164.862 Total Moisture Liquid collected, g 744.6 766.3 753.9 754.933 Volume of Water Vapor, standard cubic feet 35.05 36.07 35.49 35.537 Moisture Content of Stack Gas, % 17.70 18.02 17.48 17.733 Moisture Saturation at Stack Gas Temperature, % 17.27 17.69 17.40 17.453 Dry Mole Fraction 0.8273 0.8231 0.826 0.825 Carbon Dioxide, % 12.7 13 12.5 12.733 Oxygen, % 6.7 6.1 6.5 6.433 Carbon Monoxide & Nitrogen, % 80.6 80.9 81 80.833 Fuel Factor 1.12 1.14 1.15 Dry Molecular Weight, lb/lb-Mole 30.30 30.32 30.26 30.293 Wet Molecular weight, lb/lb-Mole 28.25 28.20 28.14 28.197 Flue Gas Static Pressure, inches of H2O -1 -1 -1 -1.000 Absolute Flue Gas Pressure, inches of Mercury 29.03 29.03 29.03 29.030 Average Stack Gas Temperature, °F 133.94 134.85 134.21 134.333 Average Velocity Head, inches of H2O 1.2942453280 59841.282751749

308291.340993782

48003 1.306 Average Stack Gas Velocity, feet/second 66.79 66.61 68.14 67.180 Stack Cross-Sectional Area, square feet 371.542 371.542 371.542 371.542 Dry Volumetric Flow Rate, dry scfm 1,062,454.71,052,599.4 1,081,734.71,065,596.2 67 Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,488,917.41,484,904.8 1,519,012.31,497,611.5 00 Percent Isokinetic of Sampling Rate, % 100.7 102.3 101.6 101.533 Percent Excess Air, % 46.0 40.0 43.7 43.233 F-Factor, dscfm/MMBtu @ %O2 9756 9665 97519,724.000 Round Duct Diameter, inches 261 261 261 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



### Tuesday, January 18, 2011 Page 17 of 17