### Name: Dennis Simmers Title: Environmental Health and Safety Company: Colver Power Pro j ect Sign Date: 9/2/10 Name: Step hen Schell Title: President Company: Air Anal y sis, LLC Sign Date: 9/2/10 Permitted Facility Representative / Date Testing Company Representative / Date 

## Colver Power Project Final Test Report for

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

Wednesday, February 09, 2011 Page 1 of 19

### Colver Power Project
9/2/10 Facility Information: Colver Power Project

141 Interpower Drive

Colver PA 15927 Contact: Dennis Simmers Phone: 814-748-1961 Fax: Email: dsimmers@acpowercolver.com Testing Company: Air Analysis, LLC

189 Hausman Road

Lenhartsville PA 19534 Contact: Stephen Schell Phone: 610-756-3490 Fax: 610-756-3491 Email: sschell@hughes.net

Air Permit Number:

11-00378 Permitted Source ID/Name: CFB ABB01 Permitted Maximum Process Rate:

N/A Max. Normal Operation Process Rate: 102 Net MW Target Process Test Rate 90% of Max. Load

Description of the source (including control equipment). Please see the attachments for source or process flow diagram:

The Colver Power Project, operated by A.C. Power-Colver Op erations, is a waste bituminous refuse fired cirdulating bed boiler (CFB) and power plant with a nominal net electric output of 102 MW. The plant consists of a Pyropower CFB Boiler with limestone injection for sulfur dioxide control and ammonia injection for nitrogen oxides emission control. A Brandt Filtration Baghouse is used for control of particulate emission s. The exhaust gases exit the boiler and pass through the baghouse before entering a 400 foot vertical stack, which discharges to atmosphere. Industry /SCC/NAIS: 221112

Sampling Location Information:

Test Parameter Information: AFS #: 4202100092 FRS #: 110001147786

SCC / Description: 10100218 External Combustion Boilers - Electric Generation - Bituminous/Subbituminous Coal - Atmospheric Fluidized Bed Combustion: Circulating Bed (Bitum. Coal)

The following state and fed eral 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 141 1932 2868 4 0 12 0 0

Target Parameter Test Method Number of Test Runs Test Run Duration Sample Points Comments Location % H2O Method 1 - 4 3 180 0 Stack Exit Carbon Monoxide Method 10 3 120 0 Stack Exit Formaldehyde Method 0011 3 120 0 Stack Exit Total organic compounds (TOC) as Propane Method 25A 3 120 0 Stack Exit



### Wednesday, February 09, 2011 Page 2 of 19

### Colver Power Project
9/2/10

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. Hydrogen Fluoride Method 26A 3 60 0 Combined with HCN Test and duration was reduced Stack Exit
Hydrogen Chloride Method 26A 3 60 0 Combined with HCN Test and duration was reduced Stack Exit
Total PM2.5 OTM - 27/28 3 360 0 Use only for dry stacks. Delete Method 5/OTM28 tests. Stack Exit

Total Particulate OTM - 27/28 3 360 0 Stack Exit Filterable Particulate OTM - 27/28 3 360 0 Stack Exit

Filterable PM2.5 OTM - 27/28 3 360 0 Stack Exit Antimony Method 29 3 330 0 Stack Exit Arsenic Method 29 3 330 0 Stack Exit Beryllium Method 29 3 330 0 Stack Exit Cadmium Method 29 3 330 0 Stack Exit Chromium Method 29 3 330 0 Stack Exit Lead Method 29 3 330 0 Stack Exit Manganese Method 29 3 330 0 Stack Exit Selenium Method 29 3 330 0 Stack Exit Filterable Particulate Method 29 3 330 0 Stack Exit

Cobalt Method 29 3 330 0 Stack Exit Nickel Method 29 3 330 0 Stack Exit O2 Method 3A O2 3 120 0 Stack Exit Co2 Method 3A CO2 3 120 0 Stack Exit Sulfur Dioxide Method 6C 3 120 0 Stack Exit Nitrogen oxides (NOx) Method 7E 3 120 0 Stack Exit



### Wednesday, February 09, 2011 Page 3 of 19

### Colver Power Project
9/2/10 Sampling / Stack Data Results Summary
Location Stack Exit - Method 10 Avera g e Run Number 1 2 3 Test Date 4/28/10 4/29/10 4/29/10 Run Start Time 4:13:00 PM 12:26:00 PM 3:10:00 PM

Run Finish Time 6:12:00 PM 2:25:00 PM 4:09:00 PM Carbon Dioxide, % 14.62 14.83 14.77 14.740 Oxygen, % 5.15 5.01 5.06 5.073 Dry Volumetric Flow Rate, dry scfm 295591 302160 299422 299,057.667 F-Factor, dscfm/MMBtu @ %O2 10495 10315 10315 10,375.000 Moisture, % 7.38 7.32 7.19 7.297 Fuel Type Override Override Override Fw 0 0 0 0.000 Fc 1800 0 0 600.000



### Location Stack Exit - Method 25A Avera g e Run Number 1 2 3 Test Date 4/28/10 4/29/10 4/29/10 Run Start Time 4:13:00 PM 12:26:00 PM 3:10:00 PM

Run Finish Time 6:12:00 PM 2:25:00 PM 5:09:00 PM Carbon Dioxide, % 0 14.83 14.77 9.867 Oxygen, % 0 5.01 5.06 3.357 Dry Volumetric Flow Rate, dry scfm 0 3021600 299422 1,107,007.33 3 F-Factor, dscfm/MMBtu @ %O2 10495 10315 10315 10,375.000 Moisture, % 0 7.32 7.19 4.837 Fuel Type Override Override Override Fw 0 0 0 0.000 Fc 0 0 0 0.000



### Wednesday, February 09, 2011 Page 4 of 19

### Colver Power Project
9/2/10 Location Stack Exit - Method 26A Avera g e Run Number 1 2 3 Test Date 4/27/10 4/27/10 4/28/10 Run Start Time 2:47:00 PM 5:16:00 PM 5:40:00 AM Run Finish Time 3:07:00 PM 6:42:00 PM 6:53:00 AM Net Run Time, minutes 60 60 60 Dry Gas Meter Volume Sampled, dscf 40.027 40.204 40.151 40.127 Moisture Content of Stack Gas, % 9.19 7.18 8.96 8.443 Carbon Dioxide, % 15.24 14.86 15.04 15.047 Oxygen, % 4.61 4.97 4.85 4.810 Average Stack Gas Temperature, °F 314.58 315.58 311.83 313.997 Dry Volumetric Flow Rate, dry scfm 276,623.4 287,850.4 280,298.2 281,590.667 Actual Wet Volumetric Flue Gas FlowRate, acfm 492,832.5 500,900.0 492,897.6 495,543.367 Percent Isokinetic of Sampling Rate, % 102.8 99.2 101.7 101.233 F-Factor, dscfm/MMBtu @ %O2 10246 10246 10495 10,329.000 Fw 0 0 0 0.000 Fc 0 0 0 0.000



### Location Stack Exit - Method 29 Avera g e Run Number 1 2 3 Test Date 4/27/10 4/28/10 4/29/10 Run Start Time 7:04:00 AM 1:50:00 PM 5:33:00 AM Run Finish Time 1:51:00 PM 6:30:00 PM 11:43:00 AM Net Run Time, minutes 360 240 330 Dry Gas Meter Volume Sample d, dscf 238.646 157.611 218.619 204.959 Moisture Content of Stack Gas, % 7.50 7.82 7.53 7.617 Carbon Dioxide, % 15.24 14.97 14.91 15.040 Oxygen, % 4.61 4.87 4.91 4.797 Average Stack Gas Temperature, °F 313.92 311.58 312.58 312.693 Dry Volumetric Flow Rate, dry scfm 273,098.4 272,339.6 278,237.6 274,558.533 Actual Wet Volumetric Flue Gas FlowRate, acfm 478,844.5 471,102.4 478,324.1 476,090.333 Percent Isokinetic of Sampli ng Rate, % 97.0 97.3 96.0 96.767 F-Factor, dscfm/MMBtu @ %O2 10246 10495 10315 10,352.000 Fw 0 0 0 0.000 Fc 0 0 0 0.000



### Wednesday, February 09, 2011 Page 5 of 19

### Colver Power Project
9/2/10 Location Stack Exit - Method 6C Avera g e Run Number 1 2 3 Test Date 4/27/10 4/27/10 4/28/10 Run Start Time 1:00:00 PM 3:24:00 PM 5:40:00 AM Run Finish Time 2:59:00 PM 5:23:00 PM 7:39:00 AM Carbon Dioxide, % 14.9 14.86 15.04 14.933 Oxygen, % 4.81 4.97 4.85 4.877 Dry Volumetric Flow Rate, dry scfm 304596 310179 280299 298,358.000 F-Factor, dscfm/MMBtu @ %O2 10246 10246 10495 10,329.000 Moisture, % 9.19 7.18 8.97 8.447 Fuel Type Override Override Override Fw 0 0 0 0.000 Fc 0 0 0 0.000



### Location Stack Exit - Method 7E Avera g e Run Number 1 2 3 Test Date 4/27/10 4/27/10 4/28/10 Run Start Time 1:00:00 PM 3:24:00 PM 5:40:00 AM Run Finish Time 2:59:00 PM 5:23:00 PM 7:39:00 AM Carbon Dioxide, % 15.24 14.86 15.04 15.047 Oxygen, % 4.61 4.97 4.85 4.810 Dry Volumetric Flow Rate, dry scfm 304596 310179 307930 307,568.333 F-Factor, dscfm/MMBtu @ %O2 10246 10246 10246 10,246.000 Moisture, % 9.19 7.16 8.97 8.440 Fuel Type Override Override Override Fw 0 0 0 0.000 Fc 0 0 0 0.000



### Wednesday, February 09, 2011 Page 6 of 19

### Colver Power Project
9/2/10 Location Stack Exit - OTM - 27/28 Avera g e Run Number 1 2 3 Test Date 4/27/10 4/28/10 4/29/10 Run Start Time 7:04:00 AM 7:51:00 AM 5:33:00 AM

Run Finish Time 1:55:00 PM 7:51:00 AM 5:33:00 AM

Net Run Time, minutes 362.3 327.45 333.45 Dry Gas Meter Volume Sample d, dscf 126.169 104.332 106.350 112.284 Moisture Content of Stack Gas, % 7.52 8.47 8.73 8.240 Carbon Dioxide, % 15.24 15.37 14.91 15.173 Oxygen, % 4.6 4.5 4.9 4.667 Average Stack Gas Temperature, °F 312.25 309.33 313.67 311.750 Dry Volumetric Flow Rate, dry scfm 255,243.9 286,724.1 281,048.4 274,338.800 Actual Wet Volumetric Flue Gas FlowRate, acfm 446,834.8 498,232.5 490,555.4 478,540.900 Percent Isokinetic of Sampli ng Rate, % 111.5 90.8 92.7 98.333 F-Factor, dscfm/MMBtu @ %O2 10246 10495 10315 10,352.000 Fw 0 0 0 0.000 Fc 0 0 0 0.000



### Wednesday, February 09, 2011 Page 7 of 19

### Colver Power Project
9/2/10 Emissions Summary
Location: Stack Exit - Method 10 Compound: Carbon Monoxide A ve r age

Run 1 2 3 Elb/hr 1.58E+01 1.53E+01 1.56E+01 15.567 lb/mmBtuO2 8.85E-03 8.29E-03 8.64E-03 0.009 ppm 9.13E+00 8.75E+00 8.93E+00 8.937 ppm@7%O2 8.21E+00 7.69E+00 8.02E+00 7.973



### Location: Stack Exit - Method 25A Compound: Total or g anic com p ounds ( TOC ) as Average Run 1 2 3 Elb/hr 2.51E-01 9.55E-02 4.12E-01 0.253 lb/mmBtuO2 1.41E-04 5.16E-05 2.28E-04 0.000 ppm 9.24E-02 3.46E-02 1.50E-01 0.092 ppm@7%O2 8.31E-02 3.04E-02 1.35E-01 0.083



### Wednesday, February 09, 2011 Page 8 of 19

### Colver Power Project
9/2/10 Process Run Data

Run Name Value UOM Comments Target Value 1 Average Heat Input 1194 MMBtu/hr 0 2 Average Heat Input 0 MMBtu/hr 0 3 Average Heat Input 0 MMBtu/hr 0 1 Steam Output 804975 000 lb steam/h 0 2 Steam Output 0 000 lb steam/h 0 3 Steam Output 0 000 lb steam/h 0 1 Flue Gas Flow Rate 295211 0 1 Flue Gas Oxygen Content 4.61 % 0 1 Flue Gas Carbon Dioxide Content 15.24 % 0 1 Flue Gas Moisture Content 7.51 % 0 1 Flue Gas Sampling Point Temperature 314 Deg F 0 1 Unit Gross Electrical Output 123.6 Mwe 0 1 Waste Bituminous (GOB) 1135.1 Mbtu/Hr 0 4 Average Heat Input 1214.3 MMBtu/hr 0 4 Steam Output 812669 000 lb steam/h 0 4 Flue Gas Flow Rate 304596 0 4 Flue Gas Oxygen Content 4.61 % 0 4 Flue Gas Carbon Dioxide Content 15.24 % 0 4 Flue Gas Moisture Content 9.19 % 0 4 Flue Gas Sampling Point Temperature 315 Deg F 0 4 Unit Gross Electrical Output 123.9 Mwe 0 4 Waste Bituminous (GOB) 1150.7 Mbtu/Hr 0 5 Average Heat Input 1238.3 MMBtu/hr 0 5 Steam Output 814302 000 lb steam/h 0 5 Flue Gas Flow Rate 310179 0 5 Flue Gas Oxygen Content 4.97 % 0 5 Flue Gas Carbon Dioxide Content 14.86 % 0 5 Flue Gas Moisture Content 7.18 % 0 5 Flue Gas Sampling Point Temperature 316 Deg F 0 5 Unit Gross Electrical Output 123.9 Mwe 0 5 Waste Bituminous (GOB) 1185.7 Mbtu/Hr 0 6 Average Heat Input 1119.3 MMBtu/hr 0 6 Steam Output 814816 000 lb steam/h 0

Wednesday, February 09, 2011 Page 9 of 19

### Colver Power Project
9/2/10 6 Flue Gas Flow Rate 307930 0 6 Flue Gas Oxygen Content 4.85 % 0 6 Flue Gas Carbon Dioxide Content 15.04 % 0 6 Flue Gas Moisture Content 8.97 % 0 6 Flue Gas Sampling Point Temperature 312 Deg F 0 6 Unit Gross Electrical Output 122.3 Mwe 0 6 Waste Bituminous (GOB) 1295.3 Mbtu/Hr 0 7 Average Heat Input 1173.9 MMBtu/hr 0 7 Steam Output 812749 000 lb steam/h 0 7 Flue Gas Flow Rate 312746 0 7 Flue Gas Oxygen Content 4.5 % 0 7 Flue Gas Carbon Dioxide Content 15.37 % 0 7 Flue Gas Moisture Content 7.75 % 0 7 Flue Gas Sampling Point Temperature 309 Deg F 0 7 Unit Gross Electrical Output 122.9 Mwe 0 7 Waste Bituminous (GOB) 1274 Mbtu/Hr 0 8 Average Heat Input 1171 MMBtu/hr 0 8 Steam Output 815091 000 lb steam/h 0 8 Flue Gas Flow Rate 295532 0 8 Flue Gas Oxygen Content 4.87 % 0 8 Flue Gas Carbon Dioxide Content 14.97 % 0 8 Flue Gas Moisture Content 7.8 % 0 8 Flue Gas Sampling Point Temperature 312 Deg F 0 8 Unit Gross Electrical Output 123.6 Mwe 0 8 Waste Bituminous (GOB) 1225.4 Mbtu/Hr 0 9 Average Heat Input 1148.1 MMBtu/hr 0 9 Steam Output 815273 000 lb steam/h 0 9 Flue Gas Flow Rate 300485 0 9 Flue Gas Oxygen Content 4.91 % 0 9 Flue Gas Carbon Dioxide Content 14.91 % 0 9 Flue Gas Moisture Content 7.5 % 0 9 Flue Gas Sampling Point Temperature 313 Deg F 0 9 Unit Gross Electrical Output 123.5 Mwe 0 9 Waste Bituminous (GOB) 1201.6 Mbtu/Hr 0 10 Average Heat Input 1170.3 MMBtu/hr 0 10 Steam Output 816491 000 lb steam/h 0

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### Colver Power Project
9/2/10

APCD Run Data

Process Lab Run Data 10 Flue Gas Flow Rate 302160 0 10 Flue Gas Oxygen Content 5.01 % 0 10 Flue Gas Carbon Dioxide Content 14.83 % 0 10 Flue Gas Moisture Content 7.32 % 0 10 Flue Gas Sampling Point Temperature 315 Deg F 0 10 Unit Gross Electrical Output 123.7 Mwe 0 10 Waste Bituminous (GOB) 1173 Mbtu/Hr 0 11 Average Heat Input 1170.3 MMBtu/hr 0 11 Steam Output 815562 000 lb steam/h 0 11 Flue Gas Flow Rate 299422 0 11 Flue Gas Oxygen Content 5.06 % 0 11 Flue Gas Carbon Dioxide Content 14.77 % 0 11 Flue Gas Moisture Content 7.19 % 0 11 Flue Gas Sampling Point Temperature 316 Deg F 0 11 Unit Gross Electrical Output 123.7 Mwe 0 11 Waste Bituminous (GOB) 1144.3 Mbtu/Hr 0

Run Name Value UOM Comments Target Value 1 BAGHOUSE 0 " H2O 0 2 BAGHOUSE 0 " H2O 0 3 BAGHOUSE 0 " H2O 0 1 DRY LIMESTONE INJECTION 42000 Lbs./hr 0 2 DRY LIMESTONE INJECTION 36000 Lbs./hr 0 3 DRY LIMESTONE INJECTION 47000 Lbs./hr 0

Run Name Value UOM Comments 1 Fuel Higher Heating Value 0 Btu/lb 1 Fuel Moisture 0 % 1 Fuel Mercury Content 0 ppm 1 Fuel Cadmium Content 0 ppm 1 Ultimate/Proximate Analysis 0 1 Fuel Nickel Content 0 ppm 1 Fuel Arsenic Content 0 ppm 1 Fuel Chromium Content 0 ppm 1 Fuel Beryllium Content 0 ppm

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### Colver Power Project
9/2/10 1 Fuel Lead Content 0 ppm 1 Fuel Manganese Content 0 ppm 1 Fuel Chlorine Content 0 ppm 1 Fuel Fluorine Content 0 ppm

Wednesday, February 09, 2011 Pa g e 12 of 19

### Colver Power Project
9/2/10 Sampling / Stack Data Results Detail
Location Stack Exit - Method 10 Avera g e Run Number 1 2 3 Test Date 4/28/10 4/29/10 4/29/10 Run Start Time 4:13:00 PM 12:26:00 PM 3:10:00 PM Run Finish Time 6:12:00 PM 2:25:00 PM 4:09:00 PM Carbon Dioxide, % 14.62 14.83 14.77 14.740 Oxygen, % 5.15 5.01 5.06 5.073 Fuel Factor 1.08 1.07 1.07 Dry Volumetric Flow Rate, dry scfm 295591 302160 299422 299,057.667 F-Factor, dscfm/MMBtu @ %O2 10495 10315 10315 10,375.000 Moisture, % 7.38 7.32 7.19 7.297 Analyzer Make Thermo Electron Thermo Electron Thermo Electron #Error
Analyzer Model 48C 48c 48c #Error Analyzer Serial Number 48c-67476-356 48c-67476- 356 48c-67476- 356 #Error
Operating Range 130 130 130 130.000 Operating Units ppm ppm ppm No. Readings/Avg. 120 120 120 120.000 Calibration Set 1 2 3 2.000 Calibration Pre Zero Cylinder ID cc-113962 cc-113962 cc-113962 Calibration Pre Zero Cylinder In strument Response 0.8 0.45 0.67 0.640 Calibration Pre Zero Cylinder Bias 0 -0.27 -0.1 -0.123 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID cc-91200 cc-91200 cc-91200 Calibration Pre High Cylinder Instrument Response 50.6 50.4 50.03 50.343 Calibration Pre High Cylinder Bias 0.15 0 -0.28 -0.043 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID cc-113962 cc-113962 cc-113962 Calibration Post Zero Cylinder In strument Response 0.8 0.67 0.4 0.623 Calibration Post Zero Cylinder Bias 0 -0.1 -0.31 -0.137 Calibration Post Zero Cylinder Drift 0 0.17 0.21 0.127 Calibration Post High Cylinder ID cc-91200 cc-91200 cc-91200 Calibration Post High Cylinder Inst rument Response 50.03 50.3 50.42 50.250 Calibration Post High Cylinder Bias -0.28 -0.08 0.02 -0.113 Calibration Post High Cylinder Drift 0.43 0.08 0.3 0.270 Cavg 48.91 51.08 48.85 49.613 Cavg Units ppmvd ppmvd ppmvd Cgas 48.2898 50.4287 48.3247 49.014 Cgas Units ppmvd ppmvd ppmvd Fuel Type Override Override Override Fw 0 0 0 0.000 Fc 1800 0 0 600.000 Cgasw 0 0 0 0.000 Cgasw Units



### Wednesday, February 09, 2011 Pa g e 13 of 19

### Colver Power Project
9/2/10 Location Stack Exit - Method 25A Avera g e Run Number 1 2 3 Test Date 4/28/10 4/29/10 4/29/10 Run Start Time 4:13:00 PM 12:26:00 PM 3:10:00 PM Run Finish Time 6:12:00 PM 2:25:00 PM 5:09:00 PM Carbon Dioxide, % 0 14.83 14.77 9.867 Oxygen, % 0 5.01 5.06 3.357 Fuel Factor 0 1.07 1.07 Dry Volumetric Flow Rate, dry scfm 0 3021600 299422 1,107,007.3 33 F-Factor, dscfm/MMBtu @ %O2 10495 10315 10315 10,375.000 Moisture, % 0 7.32 7.19 4.837 Analyzer Make JUM JUM JUM #Error Analyzer Model VE7 VE-7 VE-7 #Error Analyzer Serial Number #Num! Operating Range 15 15 15 15.000 Operating Units ppm ppm ppm No. Readings/Avg. 120 120 120 120.000 Calibration Set 4 5 6 5.000 Calibration Pre Zero Cylinder ID cc-113962 cc-113962 cc-113962 Calibration Pre Zero Cylinder Instrument Response 0.21 0.24 0.27 0.240 Calibration Pre Zero Cylinder Bias 0 0 0 0.000 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID cc-98752 cc-98752 cc-98752 Calibration Pre High Cylinder Instrument Response 6.16 6.45 6.3 6.303 Calibration Pre High Cylinder Bias 0 0 0 0.000 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID cc-113962 cc-113962 cc-113962 Calibration Post Zero Cylinder In strument Response -0.08 0.23 0.26 0.137 Calibration Post Zero Cylinder Bias -1.93 -0.07 -0.07 -0.690 Calibration Post Zero Cylinder Drift 1.93 0.07 0.07 0.690 Calibration Post High Cylinder ID cc-98752 cc-98752 cc-98752 Calibration Post High Cylinder Instrument Response 6.59 6.35 6.38 6.440 Calibration Post High Cylinder Bias 2.87 -0.67 0.53 0.910 Calibration Post High Cylinder Drift 2.87 0.67 0.53 1.357 Cavg 0.29 0.45 0.62 0.453 Cavg Units ppmvw ppmvw ppmvw Cgas 0.215 0.2269 0.3797 0.274 Cgas Units ppmvd ppmvd ppmvd Fuel Type Override Override Override Fw 0 0 0 0.000 Fc 0 0 0 0.000 Cgasw 0.2150158478 60539 0.210291970 80292 0.3523703703 7037 0.259
Cgasw Units ppmvw ppmvw ppmvw



### Wednesday, February 09, 2011 Pa g e 14 of 19

### Colver Power Project
9/2/10 Location Stack Exit - Method 26A Avera g e Run Number 1 2 3 Test Date 4/27/10 4/27/10 4/28/10 Run Start Time 2:47:00 PM 5:16:00 PM 5:40:00 AM Run Finish Time 3:07:00 PM 6:42:00 PM 6:53:00 AM Net Traversing Points 12 12 12 Net Run Time, minutes 60 60 60 Nozzle Diameter, inches 0.216 0.216 0.216 0.216 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 0.9937 0.9937 0.9937 0.994 Barometric Pressure, inches of Mercury 27.23 27.32 27.43 27.327 Average Orifice Meter Differential, inches H2O 1.50 1.56 1.45 1.503 Dry Gas Meter Volume Sampled, cubic feet 43.545 43.268 41.741 42.851 Average Dry Gas Meter Temperature, °F 61.58 57.75 42.00 53.777 Dry Gas Meter Volume Sampled, dscf 40.027 40.204 40.151 40.127 Total Moisture Liquid collected, g 86 66 84 78.667 Volume of Water Vapor, standard cubic feet 4.05 3.11 3.95 3.703 Moisture Content of Stack Gas, % 9.19 7.18 8.96 8.443 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Dry Mole Fraction 0.9081 0.9282 0.9104 0.916 Carbon Dioxide, % 15.24 14.86 15.04 15.047 Oxygen, % 4.61 4.97 4.85 4.810 Carbon Monoxide & Nitrogen, % 80.15 80.17 80.11 80.143 Fuel Factor 1.07 1.07 1.07 Dry Molecular Weight, lb/lb-Mole 30.62 30.58 30.60 30.600 Wet Molecular weight, lb/lb-Mole 29.46 29.68 29.47 29.537 Flue Gas Static Pressure, inches of H2O -1.4 -1.43 -1.53 -1.453 Absolute Flue Gas Pressure, inches of Mercury 27.13 27.21 27.32 27.220 Average Stack Gas Temperature, °F 314.58 315.58 311.83 313.997 Average Velocity Head, inches of H2O 1.148 1.197 1.161 1.169 Average Stack Gas Velocity, feet/second 75.75 76.99 75.76 76.167 Stack Cross-Sectional Area, s quare feet 108.434 108.434 108.434 108.434 Dry Volumetric Flow Rate, dry scfm 276,623.4 287,850.4 280,298.2 281,590.667 Actual Wet Volumetric Flue Gas FlowRate, acfm 492,832.5 500,900.0 492,897.6 495,543.367 Percent Isokinetic of Sampling Rate, % 102.8 99.2 101.7 101.233 Percent Excess Air, % 27.9 30.7 29.8 29.467 F-Factor, dscfm/MMBtu @ %O2 10246 10246 10495 10,329.000 Round Duct Diameter, inches 141 141 141 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



### Wednesday, February 09, 2011 Pa g e 15 of 19

### Colver Power Project
9/2/10 Location Stack Exit - Method 29 Avera g e Run Number 1 2 3 Test Date 4/27/10 4/28/10 4/29/10 Run Start Time 7:04:00 AM 1:50:00 PM 5:33:00 AM Run Finish Time 1:51:00 PM 6:30:00 PM 11:43:00 AM Net Traversing Points 12 12 12 Net Run Time, minutes 360 240 330 Nozzle Diameter, inches 0.223 0.222 0.222 0.222 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 0.9937 0.9937 0.9937 0.994 Barometric Pressure, inches of Mercury 27.14 27.52 27.64 27.433 Average Orifice Meter Differential, inches H2O 1.56 1.50 1.53 1.530 Dry Gas Meter Volume Sampled, cubic feet 259.236 168.853 233.369 220.486 Average Dry Gas Meter Temperature, °F 59.17 59.08 59.50 59.250 Dry Gas Meter Volume Sample d, dscf 238.646 157.611 218.619 204.959 Total Moisture Liquid collected, g 411 284 378 357.667 Volume of Water Vapor, standard cubic feet 19.35 13.37 17.79 16.837 Moisture Content of Stack Gas, % 7.50 7.82 7.53 7.617 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Dry Mole Fraction 0.925 0.9218 0.9247 0.924 Carbon Dioxide, % 15.24 14.97 14.91 15.040 Oxygen, % 4.61 4.87 4.91 4.797 Carbon Monoxide & Nitrogen, % 80.15 80.16 80.18 80.163 Fuel Factor 1.07 1.07 1.07 Dry Molecular Weight, lb/lb-Mole 30.62 30.59 30.58 30.597 Wet Molecular weight, lb/lb-Mole 29.67 29.61 29.63 29.637 Flue Gas Static Pressure, inches of H2O -1.41 -1.37 -1.42 -1.400 Absolute Flue Gas Pressure, inches of Mercury 27.04 27.42 27.54 27.333 Average Stack Gas Temperature, °F 313.92 311.58 312.58 312.693 Average Velocity Head, inches of H2O 1.089 1.070 1.107 1.089 Average Stack Gas Velocity, feet/second 73.60 72.41 73.52 73.177 Stack Cross-Sectional Area, s quare feet 108.434 108.434 108.434 108.434 Dry Volumetric Flow Rate, dry scfm 273,098.4 272,339.6 278,237.6 274,558.533 Actual Wet Volumetric Flue Gas FlowRate, acfm 478,844.5 471,102.4 478,324.1 476,090.333 Percent Isokinetic of Sampli ng Rate, % 97.0 97.3 96.0 96.767 Percent Excess Air, % 27.9 29.9 30.2 29.333 F-Factor, dscfm/MMBtu @ %O2 10246 10495 10315 10,352.000 Round Duct Diameter, inches 141 141 141 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



### Wednesday, February 09, 2011 Pa g e 16 of 19

### Colver Power Project
9/2/10 Location Stack Exit - Method 6C Avera g e Run Number 1 2 3 Test Date 4/27/10 4/27/10 4/28/10 Run Start Time 1:00:00 PM 3:24:00 PM 5:40:00 AM Run Finish Time 2:59:00 PM 5:23:00 PM 7:39:00 AM Carbon Dioxide, % 14.9 14.86 15.04 14.933 Oxygen, % 4.81 4.97 4.85 4.877 Fuel Factor 1.08 1.07 1.07 Dry Volumetric Flow Rate, dry scfm 304596 310179 280299 298,358.000 F-Factor, dscfm/MMBtu @ %O2 10246 10246 10495 10,329.000 Moisture, % 9.19 7.18 8.97 8.447 Analyzer Make Bovar Bovar Bovar #Error Analyzer Model 721-M 721-M 721-M #ErrorAnalyzer Serial Number VD721M8519-1 VD721M8519-1 VD721M8519-1 #Error
Operating Range 525 525 525 525.000 Operating Units ppm ppm ppm No. Readings/Avg. 120 120 120 120.000 Calibration Set 7 8 9 8.000 Calibration Pre Zero Cylinder ID cc-113962 cc-113962 cc-113962 Calibration Pre Zero Cylinder Instrument Response 1 1.1 1.33 1.143 Calibration Pre Zero Cylinder Bias 0.01 0.03 0.23 0.090 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID cc-106911B cc-106911B cc-106911B Calibration Pre High Cylinder Instrument Response 250.8 252.8 245.88 249.827 Calibration Pre High Cylinder Bias -0.59 -0.21 -1.56 -0.787 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID cc-113962 cc-113962 cc-113962 Calibration Post Zero Cylinder Instrument Response 1.1 1.5 1.4 1.333 Calibration Post Zero Cylinder Bias 0.03 0.11 0.25 0.130 Calibration Post Zero Cylinder Drift 0.02 0.08 0.02 0.040 Calibration Post High Cylinder ID cc-106911B cc-106911B cc-106911B Calibration Post High Cylinder Inst rument Response 252.8 253.7 249.88 252.127 Calibration Post High Cylinder Bias -0.21 -0.04 -0.8 -0.350 Calibration Post High Cylinder Drift 0.38 0.17 0.76 0.437 Cavg 275.29 258.04 262.76 265.363 Cavg Units ppmvd ppmvd ppmvd Cgas 275.6071 256.791 267.2111 266.536 Cgas Units ppmvd ppmvd ppmvd Fuel Type Override Override Override Fw 0 0 0 0.000 Fc 0 0 0 0.000 Cgasw 0 0 0 0.000 Cgasw Units



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### Colver Power Project
9/2/10 Location Stack Exit - Method 7E Avera g e Run Number 1 2 3 Test Date 4/27/10 4/27/10 4/28/10 Run Start Time 1:00:00 PM 3:24:00 PM 5:40:00 AM Run Finish Time 2:59:00 PM 5:23:00 PM 7:39:00 AM Carbon Dioxide, % 15.24 14.86 15.04 15.047 Oxygen, % 4.61 4.97 4.85 4.810 Fuel Factor 1.07 1.07 1.07 Dry Volumetric Flow Rate, dry scfm 304596 310179 307930 307,568.333 F-Factor, dscfm/MMBtu @ %O2 10246 10246 10246 10,246.000 Moisture, % 9.19 7.16 8.97 8.440 Analyzer Make Thermo Electron Thermo Electron Thermo Electron #Error
Analyzer Model 42C 42C 42C #Error Analyzer Serial Number 42CHL-78421- 389 42CHL78421-389 42CHL78421-389 #Error
Operating Range 260 260 260 260.000 Operating Units ppm ppm ppm No. Readings/Avg. 120 120 120 120.000 Calibration Set 10 11 12 11.000 Calibration Pre Zero Cylinder ID cc-113962 cc-113962 cc-113962 Calibration Pre Zero Cylinder Instrument Response 0.56 0.8 0.56 0.640 Calibration Pre Zero Cylinder Bias 0.14 0.23 0.15 0.173 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID cc-109864 cc-109864 cc-109864 Calibration Pre High Cylinder Instrument Response 124.6 124.6 125.2 124.800 Calibration Pre High Cylinder Bias -0.31 -0.31 -0.67 -0.430 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID cc-113962 cc-113962 cc-113962 Calibration Post Zero Cylinder Instrument Response 0.8 -1 0.9 0.233 Calibration Post Zero Cylinder Bias 0.23 -0.46 0.28 0.017 Calibration Post Zero Cylinder Drift 0.09 0.69 0.13 0.303 Calibration Post High Cylinder ID cc-109864 cc-109864 cc-109864 Calibration Post High Cylinder Inst rument Response 124.6 122.7 123.3 123.533 Calibration Post High Cylinder Bias -0.31 -1.04 -1.4 -0.917 Calibration Post High Cylinder Drift 0 0.73 0.73 0.487 Cavg 79.08 79.3 80.86 79.747 Cavg Units ppmvd ppmvd ppmvd Cgas 80.4119 81.5494 82.4524 81.471 Cgas Units ppmvd ppmvd ppmvd Fuel Type Override Override Override Fw 0 0 0 0.000 Fc 0 0 0 0.000 Cgasw 0 0 0 0.000 Cgasw Units



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### Colver Power Project
9/2/10 Location Stack Exit - OTM - 27/28 Avera g e Run Number 1 2 3 Test Date 4/27/10 4/28/10 4/29/10 Run Start Time 7:04:00 AM 7:51:00 AM 5:33:00 AM Run Finish Time 1:55:00 PM 7:51:00 AM 5:33:00 AM Net Traversing Points 12 12 12 Net Run Time, minutes 362.3 327.45 333.45 Nozzle Diameter, inches 0.156 0.156 0.156 0.156 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 0.9833 0.983 0.983 0.983 Barometric Pressure, inches of Mercury 27.14 27.52 27.64 27.433 Average Orifice Meter Differential, inches H2O 0.41 0.40 0.40 0.403 Dry Gas Meter Volume Sampled, cubic feet 139.336 113.660 115.733 122.910 Average Dry Gas Meter Temperature, °F 60.67 60.63 62.33 61.210 Dry Gas Meter Volume Sample d, dscf 126.169 104.332 106.350 112.284 Total Moisture Liquid collected, g 218 205 216 213.000 Volume of Water Vapor, standard cubic feet 10.26 9.65 10.17 10.027 Moisture Content of Stack Gas, % 7.52 8.47 8.73 8.240 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Dry Mole Fraction 0.9248 0.9153 0.9127 0.918 Carbon Dioxide, % 15.24 15.37 14.91 15.173 Oxygen, % 4.6 4.5 4.9 4.667 Carbon Monoxide & Nitrogen, % 80.16 80.13 80.19 80.160 Fuel Factor 1.07 1.07 1.07 Dry Molecular Weight, lb/lb-Mole 30.62 30.64 30.58 30.613 Wet Molecular weight, lb/lb-Mole 29.67 29.57 29.48 29.573 Flue Gas Static Pressure, inches of H2O -1.545 -1.5 -1.67 -1.572 Absolute Flue Gas Pressure, inches of Mercury 27.03 27.41 27.52 27.320 Average Stack Gas Temperature, °F 312.25 309.33 313.67 311.750 Average Velocity Head, inches of H2O 0.950 1.198 1.156 1.101 Average Stack Gas Velocity, feet/second 68.68 76.58 75.40 73.553 Stack Cross-Sectional Area, s quare feet 108.434 108.434 108.434 108.434 Dry Volumetric Flow Rate, dry scfm 255,243.9 286,724.1 281,048.4 274,338.800 Actual Wet Volumetric Flue Gas FlowRate, acfm 446,834.8 498,232.5 490,555.4 478,540.900 Percent Isokinetic of Sampli ng Rate, % 111.5 90.8 92.7 98.333 Percent Excess Air, % 27.8 27.0 30.1 28.300 F-Factor, dscfm/MMBtu @ %O2 10246 10495 10315 10,352.000 Round Duct Diameter, inches 141 141 141 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



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