### Name: Jon A Finlinson

Title: President & Chief Operations Officer Company: Intermountain Power Service Corp Sign Date: 8/31/2010 Name: Title: Company: Sign Date: Permitted Facility Representative / Date Testing Company Representative / Date 

## 6481_INTERMOUNTAIN 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.

Monday, February 28, 2011 Page 1 of 33

### 6481_INTERMOUNTAIN 8/31/2010 Facility Information: 6481_INTERMOUNTAIN 850 West Brush Wellman Road

Delta UT84624 Contact:Jon Christensen Phone:(435) 864-4414 Fax: (435) 864-6670 Email:jon-c@ipsc.com Testing Company: Applied Environmental Consultants, a JBR company 1553 West Elna Rae

Tempe AZ85281 Contact:Jason Nockleby Phone:(480) 829-0457 Fax: (480) 829-8985 Email:Jnockleby@jbrenv.com

Air Permit Number: 2700010003 Permitted Source ID/Name: INTERMOUNTAIN 6481 Permitted Maximum Process Rate:Max. Normal Operation Process Rate: Target Process Test Rate

Description of the source (including control equipment). Please see the attachments for source or process flow diagram: The Intermountain Power Project (IPP) consists of two 950 MWhe (gross) coal-fired thermal cycle steam-electric generating units. Each identical unit has a dry bottom boiler utilizing opposed wall low-NOX control burners with associated over-fire air for NOX reduction during combustion. Other pollution control devices (PCD) include fabric filter baghouses with reverse air cleaning and multi-module counterflow wet spray limestone flue gas desulfurization (FGD) scrubbers. Each IPP unit uses a continuous emissions monitoring system (CEMS) certified under both Part 75 for the Acid Rain Markets Program, and Part 60 New Source Performance Standard (NSPS) to monitor CO2, NOX, and SO2. Each unit also utilizes an uncertified mercury CEMS that measures flue gas concentrations only, since a data acquisition and handling system (DAHS) has not yet been integrated due to the remand of the Clean Air Mercury Rule (CAMR). Industry/SCC/NAIS221112

Sampling Location Information:

Test Parameter Information: AFS #:4902700010 FRS #:110000470053

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 2SGA 336 2880 4200 4 336 12 0 0



### Monday, February 28, 2011 Page 2 of 33

### 6481_INTERMOUNTAIN 8/31/2010 The following describes any modifications and/or deviations to the applicable test methods. If alternative methods were requested, see the attachments for documentation of request AND approval, including dates.



### Monday, February 28, 2011 Page 3 of 33

### 6481_INTERMOUNTAIN 8/31/2010 Sampling / Stack Data Results Summary 

### Location2SGA - EPA Method 316 Average Run Number M316-1 M316-2 M316-3 Test Date 6/16/2010 6/16/2010 6/16/2010 Run Start Time 8:37:00 AM 11:14:00 AM 1:43:00 PM

Run Finish Time 10:27:00 AM1:04:00 PM3:33:00 PM Net Run Time, minutes 120 120 120 Dry Gas Meter Volume Sampled, dscf 67.104 69.337 69.616 68.686 Moisture Content of Stack Gas, % 12.88 13.35 13.59 13.273 Moisture Saturation at Stack Gas Temperature, % 13.84 13.93 14.22 13.997 Carbon Dioxide, % 13.89 13.89 13.83 13.870 Oxygen, % 5.59 5.6 5.65 5.613 Average Stack Gas Temperature, °F 119.92 120.17 120.92 120.337 Dry Volumetric Flow Rate, dry scfm 1,970,550.52,010,070.02,015,875.41,998,831.96 7 Actual Wet Volumetric Flue Gas Flow Rate, acfm 2,994,771.43,072,725.63,094,153.83,053,883.60 0 Percent Isokinetic of Sampling Rate, % 98.9 100.2 100.3 99.800 F-Factor, dscfm/MMBtu @ %O2 9647 9652 9695 9,664.667 Fw 10566 10532 10559 10,552.333 Fc 0 0 0 0.000



### Monday, February 28, 2011 Page 4 of 33

### 6481_INTERMOUNTAIN 8/31/2010 Location2SGA - Method 1 - 4 Average Run Number 1 Test Date 6/16/2010 Run Start Time 4:03:00 PM Run Finish Time 5:53:00 PM Net Run Time, minutes 120 Dry Gas Meter Volume Sampled, dscf 62.870 62.870 Moisture Content of Stack Gas, % 12.57 12.570 Moisture Saturation at Stack Gas Temperature, % 14.78 14.780 Carbon Dioxide, % 13.22 13.220 Oxygen, % 6.11 6.110 Average Stack Gas Temperature, °F 122.00 122.000 Dry Volumetric Flow Rate, dry scfm 2,201,846.7 2,201,846.70 0 Actual Wet Volumetric Flue Gas Flow Rate, acfm 3,374,936.7 3,374,936.70 0 Percent Isokinetic of Sampling Rate, % F-Factor, dscfm/MMBtu @ %O2 9763 9,763.000 Fw 10654 10,654.000 Fc 0 0.000



### Location2SGA - Method 10 Average Run Number 1 2 3 Test Date 6/16/2010 6/16/2010 6/16/2010 Run Start Time 8:32:00 AM 11:13:00 AM 1:40:00 PM

Run Finish Time 10:31:00 AM1:12:00 PM3:39:00 PM Carbon Dioxide, % 13.42 13.22 13.11 13.250 Oxygen, % 5.91 6.07 6.2 6.060 Dry Volumetric Flow Rate, dry scfm 2263815 231951 23313511,609,039.00 0 F-Factor, dscfm/MMBtu @ %O2 9647 9652 9695 9,664.667 Moisture, % 12.96 13.43 13.68 13.357 Fuel Type Override Override Override Fw 10566 10532 10559 10,552.333 Fc 0 0 0 0.000



### Monday, February 28, 2011 Page 5 of 33

### 6481_INTERMOUNTAIN 8/31/2010 Location2SGA - Method 10 3 Average Run Number 4 Test Date 6/16/2010 Run Start Time 4:00:00 PM Run Finish Time 5:59:00 PM Carbon Dioxide, % 13.22 13.220 Oxygen, % 6.11 6.110 Dry Volumetric Flow Rate, dry scfm 2517279 2,517,279.00 0 F-Factor, dscfm/MMBtu @ %O2 9763 9,763.000 Moisture, % 12.66 12.660 Fuel Type Override Fw 10654 10,654.000 Fc 0 0.000



### Location2SGA - Method 25A Average Run Number 1 2 3 Test Date 6/16/2010 6/16/2010 6/16/2010 Run Start Time 8:32:00 AM 11:13:00 AM 1:40:00 PM

Run Finish Time 10:31:00 AM1:12:00 PM3:39:00 PM Carbon Dioxide, % 13.42 13.22 13.11 13.250 Oxygen, % 5.91 6.07 6.2 6.060 Dry Volumetric Flow Rate, dry scfm 2263815 2319571 23313512,304,912.33 3 F-Factor, dscfm/MMBtu @ %O2 9647 9652 9695 9,664.667 Moisture, % 12.96 13.43 13.68 13.357 Fuel Type Override Override Override Fw 10566 10532 10559 10,552.333 Fc 0 0 0 0.000



### Monday, February 28, 2011 Page 6 of 33

### 6481_INTERMOUNTAIN 8/31/2010 Location2SGA - Method 3A CO2 Average Run Number 1 2 3 Test Date 6/16/2010 6/16/2010 6/16/2010 Run Start Time 8:32:00 AM 11:13:00 AM 1:40:00 PM

Run Finish Time 10:31:00 AM1:12:00 PM3:39:00 PM Carbon Dioxide, % 13.42 13.22 13.11 13.250 Oxygen, % 5.91 6.07 6.2 6.060 Dry Volumetric Flow Rate, dry scfm 2263815 2319571 23313512,304,912.33 3 F-Factor, dscfm/MMBtu @ %O2 9647 9652 9695 9,664.667 Moisture, % 12.96 13.43 13.68 13.357 Fuel Type Override Override Override Fw 10566 10532 10559 10,552.333 Fc 0 0 0 0.000



### Location2SGA - Method 3A CO2 3 Average Run Number 4 Test Date 6/16/2010 Run Start Time 4:00:00 PM Run Finish Time 5:59:00 PM Carbon Dioxide, % 13.22 13.220 Oxygen, % 6.11 6.110 Dry Volumetric Flow Rate, dry scfm 2517279 2,517,279.00 0 F-Factor, dscfm/MMBtu @ %O2 9763 9,763.000 Moisture, % 12.66 12.660 Fuel Type Override Fw 10654 10,654.000 Fc 0 0.000



### Monday, February 28, 2011 Page 7 of 33

### 6481_INTERMOUNTAIN 8/31/2010 Location2SGA - Method 3A O2 Average Run Number 1 2 3 Test Date 6/15/2010 6/16/2010 6/16/2010 Run Start Time 8:32:00 AM 11:13:00 AM 1:40:00 PM

Run Finish Time 10:31:00 AM1:12:00 PM3:39:00 PM Carbon Dioxide, % 13.42 13.22 13.11 13.250 Oxygen, % 5.91 6.07 6.2 6.060 Dry Volumetric Flow Rate, dry scfm 2263815 2319571 23313512,304,912.33 3 F-Factor, dscfm/MMBtu @ %O2 9647 9652 9695 9,664.667 Moisture, % 12.96 13.43 13.68 13.357 Fuel Type Override Override Override Fw 10566 10532 10559 10,552.333 Fc 0 0 0 0.000



### Location2SGA - Method 3A O2 3 Average Run Number 4 Test Date 6/16/2010 Run Start Time 4:00:00 PM Run Finish Time 5:59:00 PM Carbon Dioxide, % 13.22 13.220 Oxygen, % 6.11 6.110 Dry Volumetric Flow Rate, dry scfm 2517279 2,517,279.00 0 F-Factor, dscfm/MMBtu @ %O2 9763 9,763.000 Moisture, % 12.66 12.660 Fuel Type Override Fw 10654 10,654.000 Fc 0 0.000



### Monday, February 28, 2011 Page 8 of 33

### 6481_INTERMOUNTAIN 8/31/2010 Emissions Summary 

### Location: Stack Platform - Method 0011 Compound:Formaldehyde Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.0153 0.0109 0.0076 0.011 lb/mmBtuO2 6.42E-06 4.59E-06 3.08E-06 0.000 ppm 5.36E-03 3.85E-03 2.59E-03 0.004 ppm@7%O2 5.96E-03 4.26E-03 2.86E-03 0.004



### Location: Stack Platform - Method 10 Compound: Carbon Monoxide Average Run PJ4 R1 PJ4 R2 PJ4 R3 Elb/hr 2.56E+00 4.43E+00 3.86E+00 3.617 lb/mmBtuO2 4.29E-04 7.55E-04 6.60E-04 0.001 mg/dscm 4.69E-01 8.16E-01 7.03E-01 0.663



### Location: Stack Platform - Method 23 Compound: 1,2,3,4,6,7,8-HpCDF Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.00000000501 0.00000000531 0.00000000503 0.000 lb/mmBtuO2 5.21E-13 5.57E-13 5.38E-13 0.000 ng/dscm 5.70E-04 6.02E-04 5.73E-04 0.001 ng/dscm@7%O2 6.05E-04 6.46E-04 6.24E-04 0.001 

### Compound: 1,2,3,7,8-PeCDD Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.00000000189 0.00000000179 0.00000000176 0.000 lb/mmBtuO2 1.97E-13 1.88E-13 1.88E-13 0.000 ng/dscm 2.15E-04 2.03E-04 2.00E-04 0.000 ng/dscm@7%O2 2.28E-04 2.18E-04 2.18E-04 0.000 

### Compound: 1,2,3,7,8-PeCDF Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.00000000167 0.00000000177 0.00000000146 0.000 lb/mmBtuO2 1.74E-13 1.86E-13 1.56E-13 0.000 ng/dscm 1.90E-04 2.01E-04 1.66E-04 0.000 ng/dscm@7%O2 2.02E-04 2.16E-04 1.81E-04 0.000 

### Compound:2,3,3',4,4',5,5'-HpCB (PCB189) Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.00000000364 0.00000000619 0.000000006 0.000 lb/mmBtuO2 3.79E-13 6.49E-13 6.41E-13 0.000 ng/dscm 4.14E-04 7.02E-04 6.83E-04 0.001 ng/dscm@7%O2 4.39E-04 7.53E-04 7.43E-04 0.001



### Monday, February 28, 2011 Page 9 of 33

### 6481_INTERMOUNTAIN 8/31/2010 Compound: 2,3,3',4,4',5/2,3,3',4,4',5'-HxCB (PC Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.0000001145 0.000000192 0.000000242 0.000 lb/mmBtuO2 1.19E-11 2.01E-11 2.59E-11 0.000 ng/dscm 1.30E-02 2.18E-02 2.76E-02 0.021 ng/dscm@7%O2 1.38E-02 2.34E-02 3.00E-02 0.022 

### Compound: 2,3,3',4,4'-PeCB (PCB105) Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.000000447 0.000000728 0.000000895 0.000 lb/mmBtuO2 4.65E-11 7.63E-11 9.57E-11 0.000 ng/dscm 5.08E-02 8.25E-02 1.02E-01 0.078 ng/dscm@7%O2 5.39E-02 8.85E-02 1.11E-01 0.084 

### Compound: 2,3',4,4',5,5'-HxCB (PCB167) Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.0000000421 0.0000000787 0.0000000943 0.000 lb/mmBtuO2 4.38E-12 8.25E-12 1.01E-11 0.000 ng/dscm 4.79E-03 8.92E-03 1.07E-02 0.008 ng/dscm@7%O2 5.08E-03 9.57E-03 1.16E-02 0.009 

### Compound:2,3,4,4',5-PeCB (PCB114) Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.0000000282 0.0000000526 0.0000000695 0.000 lb/mmBtuO2 2.93E-12 5.52E-12 7.43E-12 0.000 ng/dscm 3.21E-03 5.96E-03 7.91E-03 0.006 ng/dscm@7%O2 3.41E-03 6.39E-03 8.61E-03 0.006 

### Compound:2,3',4,4',5-PeCB (PCB118) Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.0000014 0.00000235 0.00000278 0.000 lb/mmBtuO2 1.46E-10 2.46E-10 2.97E-10 0.000 ng/dscm 1.59E-01 2.66E-01 3.17E-01 0.247 ng/dscm@7%O2 1.69E-01 2.85E-01 3.45E-01 0.266 

### Compound:2',3,4,4',5-PeCB (PCB123) Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.0000000277 0.0000000543 0.0000000652 0.000 lb/mmBtuO2 2.88E-12 5.69E-12 6.97E-12 0.000 ng/dscm 3.15E-03 6.16E-03 7.42E-03 0.006 ng/dscm@7%O2 3.34E-03 6.61E-03 8.08E-03 0.006 

### Compound: 2,3,4,7,8-PeCDF Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.00000000161 0.00000000171 0.00000000143 0.000 lb/mmBtuO2 1.68E-13 1.79E-13 1.53E-13 0.000



### Monday, February 28, 2011 Page 10 of 33

### 6481_INTERMOUNTAIN 8/31/2010 ng/dscm 1.83E-04 1.94E-04 1.63E-04 0.000 ng/dscm@7%O2 1.94E-04 2.08E-04 1.77E-04 0.000 

### Compound:2,3,7,8-TCDD Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.00000000125 0.00000000121 0.000000000944 0.000 lb/mmBtuO2 1.30E-13 1.27E-13 1.01E-13 0.000 ng/dscm 1.42E-04 1.37E-04 1.07E-04 0.000 ng/dscm@7%O2 1.51E-04 1.47E-04 1.16E-04 0.000 

### Compound:2,3,7,8-TCDF Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.00000000105 0.00000000106 0.000000000977 0.000 lb/mmBtuO2 1.09E-13 1.11E-13 1.04E-13 0.000 ng/dscm 1.19E-04 1.20E-04 1.11E-04 0.000 ng/dscm@7%O2 1.26E-04 1.29E-04 1.21E-04 0.000 

### Compound: 3,3',4,4',5,5'-HxCB (PCB169) Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.00000000723 0.00000000486 0.00000000626 0.000 lb/mmBtuO2 7.52E-13 5.10E-13 6.69E-13 0.000 ng/dscm 8.22E-04 5.51E-04 7.13E-04 0.001 ng/dscm@7%O2 8.72E-04 5.91E-04 7.76E-04 0.001 

### Compound: 3,3',4,4',5-PeCB (PCB126) Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.00000000578 0.000000011 0.0000000106 0.000 lb/mmBtuO2 6.02E-13 1.15E-12 1.13E-12 0.000 ng/dscm 6.57E-04 1.25E-03 1.21E-03 0.001 ng/dscm@7%O2 6.97E-04 1.34E-03 1.32E-03 0.001 

### Compound: 3,3',4,4'-TCB (PCB77) Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.0000000981 0.000000163 0.000000161 0.000 lb/mmBtuO2 1.02E-11 1.71E-11 1.72E-11 0.000 ng/dscm 1.12E-02 1.85E-02 1.83E-02 0.016 ng/dscm@7%O2 1.19E-02 1.98E-02 1.99E-02 0.017 

### Compound: 3,4,4',5-TCB (PCB81) Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.00000000688 0.0000000145 0.0000000119 0.000 lb/mmBtuO2 7.16E-13 1.52E-12 1.27E-12 0.000 ng/dscm 7.82E-04 1.64E-03 1.36E-03 0.001 ng/dscm@7%O2 8.30E-04 1.76E-03 1.48E-03 0.001 

### Compound: OCDD Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 

### Monday, February 28, 2011 Page 11 of 33

### 6481_INTERMOUNTAIN 8/31/2010 Mass_mg 0.00000847 0.00000000577 0.00000000556 0.000 lb/mmBtuO2 8.81E-10 6.05E-13 5.94E-13 0.000 ng/dscm 9.63E-01 6.54E-04 6.33E-04 0.321 ng/dscm@7%O2 1.02E+00 7.01E-04 6.89E-04 0.340 

### Compound: OCDF Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.00000522 0.00000000697 0.00000000573 0.000 lb/mmBtuO2 5.43E-10 7.31E-13 6.13E-13 0.000 ng/dscm 5.94E-01 7.90E-04 6.52E-04 0.198 ng/dscm@7%O2 6.30E-01 8.47E-04 7.10E-04 0.211 

### Compound: Other HpCDD Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0 0 0 0.000 lb/mmBtuO2 0.00E+00 0.00E+00 0.00E+00 0.000 ng/dscm 0.00E+00 0.00E+00 0.00E+00 0.000 ng/dscm@7%O2 0.00E+00 0.00E+00 0.00E+00 0.000 

### Compound: Other HpCDF Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0 0 0 0.000 lb/mmBtuO2 0.00E+00 0.00E+00 0.00E+00 0.000 ng/dscm 0.00E+00 0.00E+00 0.00E+00 0.000 ng/dscm@7%O2 0.00E+00 0.00E+00 0.00E+00 0.000 

### Compound: Other HxCDD Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0 0.00000000778 0 0.000 lb/mmBtuO2 0.00E+00 8.16E-13 0.00E+00 0.000 ng/dscm 0.00E+00 8.82E-04 0.00E+00 0.000 ng/dscm@7%O2 0.00E+00 9.46E-04 0.00E+00 0.000 

### Compound: Other HxCDF Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0 0.00000000237 0.00000000151 0.000 lb/mmBtuO2 0.00E+00 2.49E-13 1.61E-13 0.000 ng/dscm 0.00E+00 2.69E-04 1.72E-04 0.000 ng/dscm@7%O2 0.00E+00 2.89E-04 1.87E-04 0.000 

### Compound: Other PeCDD Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0 0.00000000545 0 0.000 lb/mmBtuO2 0.00E+00 5.72E-13 0.00E+00 0.000 ng/dscm 0.00E+00 6.18E-04 0.00E+00 0.000 ng/dscm@7%O2 0.00E+00 6.63E-04 0.00E+00 0.000



### Monday, February 28, 2011 Page 12 of 33

### 6481_INTERMOUNTAIN 8/31/2010 Compound: Other PeCDF Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0 0 0 0.000 lb/mmBtuO2 0.00E+00 0.00E+00 0.00E+00 0.000 ng/dscm 0.00E+00 0.00E+00 0.00E+00 0.000 ng/dscm@7%O2 0.00E+00 0.00E+00 0.00E+00 0.000 

### Compound: Other TCDD Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0 0.00000000462 0.00000000231 0.000 lb/mmBtuO2 0.00E+00 4.84E-13 2.47E-13 0.000 ng/dscm 0.00E+00 5.24E-04 2.63E-04 0.000 ng/dscm@7%O2 0.00E+00 5.62E-04 2.86E-04 0.000 

### Compound: Other TCDF Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.00000000284 0.00000000357 0.00000000227 0.000 lb/mmBtuO2 2.96E-13 3.74E-13 2.43E-13 0.000 ng/dscm 3.23E-04 4.05E-04 2.58E-04 0.000 ng/dscm@7%O2 3.43E-04 4.34E-04 2.81E-04 0.000



### Location: Stack Platform - Method 25A Compound:Total organic compounds (TOC) as Average Run PJ4 R1 PJ4 R2 PJ4 R3 Elb/hr 3.02E+00 7.08E+00 2.03E+00 4.043 gr/dscf 2.40E-04 5.61E-04 1.60E-04 0.000 lb/mmBtuO2 5.28E-04 1.23E-03 3.49E-04 0.001 mg/dscm 5.50E-01 1.28E+00 3.67E-01 0.732 ppm 3.00E-01 7.00E-01 2.00E-01 0.400 ppm@7%O2 3.34E-01 7.75E-01 2.21E-01 0.443



### Location: Stack Platform - Method 26A Compound:Hydrogen Chloride Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.97 0.99 0.9 0.953 Elb/hr 1.55E+00 1.58E+00 1.44E+00 1.523 lb/mmBtuO2 2.50E-04 2.55E-04 2.34E-04 0.000 mg/dscm 2.71E-01 2.80E-01 2.57E-01 0.269 mg/dscm@7%O2 2.90E-01 2.96E-01 2.71E-01 0.286 

### Compound:Hydrogen Fluoride Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.4 0.4 0.42 0.407 Elb/hr 6.39E-01 6.40E-01 6.72E-01 0.650 lb/mmBtuO2 1.03E-04 1.03E-04 1.09E-04 0.000 mg/dscm 1.12E-01 1.13E-01 1.20E-01 0.115



### Monday, February 28, 2011 Page 13 of 33

### 6481_INTERMOUNTAIN 8/31/2010 mg/dscm@7%O2 1.20E-01 1.19E-01 1.27E-01 0.122



### Location: Stack Platform - Method 29 Compound:Antimony Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 1.184247 1.229485 1.20238 1.205 Elb/hr 9.43E-01 9.73E-01 9.47E-01 0.954 lb/mmBtuO2 1.60E-04 1.68E-04 1.62E-04 0.000 mg/dscm 1.73E-01 1.79E-01 1.72E-01 0.175 mg/dscm@7%O2 1.86E-01 1.95E-01 1.88E-01 0.190 

### Compound:Arsenic Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.02022 0.01888 0.01881 0.019 Elb/hr 1.61E-02 1.49E-02 1.48E-02 0.015 lb/mmBtuO2 2.74E-06 2.58E-06 2.53E-06 0.000 mg/dscm 2.95E-03 2.76E-03 2.69E-03 0.003 mg/dscm@7%O2 3.17E-03 3.00E-03 2.93E-03 0.003 

### Compound:Beryllium Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.00172 0.00119 0.00151 0.001 Elb/hr 1.37E-03 9.42E-04 1.19E-03 0.001 lb/mmBtuO2 2.33E-07 1.63E-07 2.03E-07 0.000 mg/dscm 2.51E-04 1.74E-04 2.16E-04 0.000 mg/dscm@7%O2 2.70E-04 1.89E-04 2.35E-04 0.000 

### Compound: Cadmium Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.001529 0.00125 0.001524 0.001 Elb/hr 1.22E-03 9.89E-04 1.20E-03 0.001 lb/mmBtuO2 2.07E-07 1.71E-07 2.05E-07 0.000 mg/dscm 2.23E-04 1.82E-04 2.18E-04 0.000 mg/dscm@7%O2 2.40E-04 1.98E-04 2.38E-04 0.000 

### Compound: Chromium Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.06523 0.05429 0.038052 0.053 Elb/hr 5.19E-02 4.30E-02 3.00E-02 0.042 lb/mmBtuO2 8.83E-06 7.43E-06 5.12E-06 0.000 mg/dscm 9.53E-03 7.92E-03 5.44E-03 0.008 mg/dscm@7%O2 1.02E-02 8.61E-03 5.93E-03 0.008 

### Compound:Filterable Particulate Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 241.5 241.9 226.3 236.567 Elb/hr 1.92E+02 1.91E+02 1.78E+02 187.000



### Monday, February 28, 2011 Page 14 of 33

### 6481_INTERMOUNTAIN 8/31/2010 lb/mmBtuO2 3.27E-02 3.31E-02 3.04E-02 0.032 mg/dscm 3.53E+01 3.53E+01 3.24E+01 34.333 mg/dscm@7%O2 3.79E+01 3.84E+01 3.53E+01 37.200 

### Compound:Lead Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.029889 0.02882 0.029033 0.029 Elb/hr 2.38E-02 2.28E-02 2.29E-02 0.023 lb/mmBtuO2 4.05E-06 3.94E-06 3.90E-06 0.000 mg/dscm 4.37E-03 4.21E-03 4.15E-03 0.004 mg/dscm@7%O2 4.69E-03 4.58E-03 4.52E-03 0.005 

### Compound:Manganese Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.319968 0.29902 0.293857 0.304 Elb/hr 2.55E-01 2.37E-01 2.32E-01 0.241 lb/mmBtuO2 4.33E-05 4.09E-05 3.95E-05 0.000 mg/dscm 4.68E-02 4.36E-02 4.20E-02 0.044 mg/dscm@7%O2 5.03E-02 4.74E-02 4.58E-02 0.048 

### Compound:Nickel Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 4.30507 3.96703 4.16365 4.145 Elb/hr 3.43E+00 3.14E+00 3.28E+00 3.283 lb/mmBtuO2 5.83E-04 5.43E-04 5.60E-04 0.001 mg/dscm 6.29E-01 5.79E-01 5.95E-01 0.601 mg/dscm@7%O2 6.76E-01 6.29E-01 6.49E-01 0.651 

### Compound: Selenium Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 0.03101 0.03352 0.0344 0.033 Elb/hr 2.47E-02 2.65E-02 2.71E-02 0.026 lb/mmBtuO2 4.20E-06 4.59E-06 4.63E-06 0.000 mg/dscm 4.53E-03 4.89E-03 4.92E-03 0.005 mg/dscm@7%O2 4.87E-03 5.31E-03 5.36E-03 0.005



### Location: Stack Platform - Method 6C Compound: Sulfur Dioxide Average Run PJ4 R1 PJ4 R2 PJ4 R3 Elb/hr 3.93E+03 4.08E+03 4.09E+03 4,033.333 lb/mmBtuO2 6.34E-01 6.60E-01 6.66E-01 0.653 mg/dscm 6.87E+02 7.24E+02 7.31E+02 714.000 mg/dscm@7%O2 7.35E+02 7.65E+02 7.72E+02 757.333 ppm 2.58E+02 2.72E+02 2.75E+02 268.333 ppm@7%O2 2.76E+02 2.88E+02 2.90E+02 284.667



### Location: Stack Platform - Method 7E



### Monday, February 28, 2011 Page 15 of 33

### 6481_INTERMOUNTAIN 8/31/2010

Process Run Data Compound:Nitrogen oxides (NOx) Average Run PJ4 R1 PJ4 R2 PJ4 R3 Elb/hr 1.45E+03 1.57E+03 1.42E+03 1,480.000 lb/mmBtuO2 2.34E-01 2.53E-01 2.32E-01 0.240 mg/dscm 2.54E+02 2.78E+02 2.55E+02 262.333 mg/dscm@7%O2 2.72E+02 2.94E+02 2.69E+02 278.333 ppm 1.33E+02 1.45E+02 1.33E+02 137.000 ppm@7%O2 1.42E+02 1.53E+02 1.40E+02 145.000



### Location: Stack Platform - OTM - 27/28 Compound:Filterable PM2.5 Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 29.6 35.4 39.9 34.967 lb/mmBtuO2 6.73E-03 8.04E-03 9.11E-03 0.008 

### Compound:Inorganic (Aqueous) Condensible Pa Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 110.9 66 104.6 93.833 lb/mmBtuO2 2.52E-02 1.50E-02 2.39E-02 0.021 

### Compound: Organic Condensible Particulate Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 2 1.8 0.7 1.500 lb/mmBtuO2 4.55E-04 4.09E-04 1.60E-04 0.000 

### Compound:Total PM2.5 Average RunNumber PJ4 R1 PJ4 R2 PJ4 R3 Mass_mg 142.5 103.2 145.2 130.300 lb/mmBtuO2 3.24E-02 2.35E-02 3.32E-02 0.030



### Monday, February 28, 2011 Page 16 of 33

### 6481_INTERMOUNTAIN 8/31/2010 Process Run Data



### Run Name Value UOM Comments Target Value 1 Bituminous Coal Burned 8552.51000 Tons/hr 0 

### 2 Bituminous Coal Burned 8552.51000 Tons/hr 0 3 Bituminous Coal Burned 8514.81000 Tons/hr 0 4 Bituminous Coal Burned 8471.51000 Tons/hr 0 

### 2 Coal Feed Rate - 1SGA 381.54 ton/hr 0 3 Coal Feed Rate - 1SGA 383.69 ton/hr 0 4 Coal Feed Rate - 1SGA 381.27 ton/hr 0 

### 2 Steam Pressure - 1SGA 2384.1 psi 0 3 Steam Pressure - 1SGA 2383.7 psi 0 4 Steam Pressure - 1SGA 2383.3 psi 0 

### 2 Gross Electric Output - 1SGA 950.01 MWh 0 3 Gross Electric Output - 1SGA 949.99 MWh 0 4 Gross Electric Output - 1SGA 949.9 MWh 0 

### 2 Oxygen (O2) - 1SGA 3.3 % 0 3 Oxygen (O2) - 1SGA 3.45 % 0 4 Oxygen (O2) - 1SGA 3.16 % 0 

### 2Fuel Oil Feed Rate - 1SGA 0.03 klbh 0 3 Fuel Oil Feed Rate - 1SGA 0.03 klbh 0 4 Fuel Oil Feed Rate - 1SGA 0.03 klbh 0 

### 2 Steam Flow Rate - 1SGA 6684.5 klbh 0 3 Steam Flow Rate - 1SGA 6701.9 klbh 0 4 Steam Flow Rate - 1SGA 6706 klbh 0 

### 2 Steam Temperature - 1SGA 1002.5 F 0 3 Steam Temperature - 1SGA 1000.3 F 0 

### 4 Steam Temperature - 1SGA 1001.6 F 0 1 Total Heat Input - 2SGA 8479.5MMBtu/hr 0 2 Total Heat Input - 2SGA 8428.7MMBtu/hr 0 

### 3 Total Heat Input - 2SGA 8467.0MMBtu/hr 0 4 Total Heat Input - 2SGA 8474.5MMBtu/hr 0 1 Steam Temperature - 2SGA 998.33 F 0 

### 2 Steam Temperature - 2SGA 998.33 F 0 3 Steam Temperature - 2SGA 999.13 F 0 4 Steam Temperature - 2SGA 998.64 F 0



### Monday, February 28, 2011 Page 17 of 33

### 6481_INTERMOUNTAIN 8/31/2010

APCD Run Data 1 Steam Flow Rate - 2SGA 6485.1 klbh 0 

### 2 Steam Flow Rate - 2SGA 6503.1 klbh 0 3 Steam Flow Rate - 2SGA 6524.6 klbh 0 4 Steam Flow Rate - 2SGA 6513.5 klbh 0 

### 1 Fuel Oil Feed Rate - 2SGA 0 klbh 0 2 Fuel Oil Feed Rate - 2SGA 0 klbh 0 3 Fuel Oil Feed Rate - 2SGA 0 klbh 0 

### 4 Fuel Oil Feed Rate - 2SGA 0 klbh 0 1 Oxygen (O2) - 2SGA 3.24 % 0 2 Oxygen (O2) - 2SGA 3.29 % 0 

### 3 Oxygen (O2) - 2SGA 3.5 % 0 4 Oxygen (O2) - 2SGA 3.45 % 0 1 Gross Electric Output - 2SGA 949.91 MWh 0 

### 2 Gross Electric Output - 2SGA 949.97 MWh 0 3 Gross Electric Output - 2SGA 950.08 MWh 0 4 Gross Electric Output - 2SGA 949.95 MWh 0 

### 1 Steam Pressure - 2SGA 2358.7 psi 0 2 Steam Pressure - 2SGA 2357.7 psi 0 3 Steam Pressure - 2SGA 2356.5 psi 0 

### 4 Steam Pressure - 2SGA 2358.4 psi 0 1 Coal Feed Rate -2SGA 384.29 ton/hr 0 

### 2 Coal Feed Rate -2SGA 381.96 ton/hr 0 3 Coal Feed Rate -2SGA 383.69 ton/hr 0 4 Coal Feed Rate -2SGA 384.04 ton/hr 0 

### 2Net Electric Output - 1SGA 895.38 MWh 0 3 Net Electric Output - 1SGA 896.29 MWh 0 4 Net Electric Output - 1SGA 895.86 MWh 0 

### 1 Net Electric Output - 2SGA 890.36 MWh 0 2Net Electric Output - 2SGA 888.77 MWh 0 3 Net Electric Output - 2SGA 888.59 MWh 0 

### 4 Net Electric Output - 2SGA 889.5 MWh 0

Run Name Value UOM Comments Target Value 1 Scrubber Differential Pressure - Module F - 2SGA 1.72 inWC 0 2 Scrubber Differential Pressure - Module F - 2SGA 1.76 inWC 0



### Monday, February 28, 2011 Page 18 of 33

### 6481_INTERMOUNTAIN 8/31/2010 3 Scrubber Differential Pressure - Module F - 2SGA 1.77 inWC 0 

### 4 Scrubber Differential Pressure - Module F - 2SGA 1.76 inWC 0 1 Scrubber Differential Pressure - Module C - 2SGA 1.68 inWC 0 2 Scrubber Differential Pressure - Module C - 2SGA 1.7 inWC 0 

### 3 Scrubber Differential Pressure - Module C - 2SGA 1.72 inWC 0 4 Scrubber Differential Pressure - Module C - 2SGA 1.72 inWC 0 1 Scrubber Differential Pressure - Module D - 2SGA 1.92 inWC 0 

### 2 Scrubber Differential Pressure - Module D - 2SGA 1.94 inWC 0 3 Scrubber Differential Pressure - Module D - 2SGA 1.97 inWC 0 4 Scrubber Differential Pressure - Module D - 2SGA 1.97 inWC 0 

### 1 Scrubber Differential Pressure - Module E - 2SGA 1.79 inWC 0 2 Scrubber Differential Pressure - Module E - 2SGA 1.81 inWC 0 3 Scrubber Differential Pressure - Module E - 2SGA 1.83 inWC 0 

### 4 Scrubber Differential Pressure - Module E - 2SGA 1.82 inWC 0 1 Fabric Filter Differential Pressure - A Casing - 2SGA 9.35 inWC 0



### 2Fabric Filter Differential Pressure - A Casing - 2SGA 9.45 inWC 0

3 Fabric Filter Differential Pressure - A Casing - 2SGA 9.6 inWC 0



### 4 Fabric Filter Differential Pressure - A Casing - 2SGA 9.33 inWC 0

1 Fabric Filter Differential Pressure - B Casing - 2SGA 8.95 inWC 0



### 2Fabric Filter Differential Pressure - B Casing - 2SGA 9.04 inWC 0

3 Fabric Filter Differential Pressure - B Casing - 2SGA 9.2 inWC 0



### 4 Fabric Filter Differential Pressure - B Casing - 2SGA 8.91 inWC 0

1 Fabric Filter Differential Pressure - C Casing - 2SGA 8.29 inWC 0

2 Fabric Filter Differential Pressure - C Casing - 2SGA 8.36 inWC 0

3 Fabric Filter Differential Pressure - C Casing - 2SGA 8.54 inWC 0

4 Fabric Filter Differential Pressure - C Casing - 2SGA 8.3 inWC 0



### 1 Average Scrubber Differential Pressure - 2SGA 1.78 inWC 0 2 Average Scrubber Differential Pressure - 2SGA 1.8 inWC 0 3 Average Scrubber Differential Pressure - 2SGA 1.82 inWC 0



### Monday, February 28, 2011 Page 19 of 33

### 6481_INTERMOUNTAIN 8/31/2010 4 Average Scrubber Differential Pressure - 2SGA 1.82 inWC 0 

### 1 Average Fabric Filter Differential Pressure - 2SGA 8.86 inWC 0 2 Average Fabric Filter Differential Pressure - 2SGA 8.95 inWC 0 3 Average Fabric Filter Differential Pressure - 2SGA 9.11 inWC 0 

### 4 Average Fabric Filter Differential Pressure - 2SGA 8.84 inWC 0 1 Scrubber pH Module C - 2SGA 5.9 pH 0 2 Scrubber pH Module C - 2SGA 5.9 pH 0 

### 3 Scrubber pH Module C - 2SGA 5.9 pH 0 4 Scrubber pH Module C - 2SGA 5.9 pH 0 1 Scrubber pH Module E - 2SGA 5.88 pH 0 

### 2 Scrubber pH Module E - 2SGA 5.88 pH 0 3 Scrubber pH Module E - 2SGA 5.89 pH 0 4 Scrubber pH Module E - 2SGA 5.86 pH 0 

### 1 Scrubber pH Module F - 2SGA 5.92 pH 0 2 Scrubber pH Module F - 2SGA 5.92 pH 0 3 Scrubber pH Module F - 2SGA 5.89 pH 0 

### 4 Scrubber pH Module F - 2SGA 5.86 pH 0 1 Average Scrubber pH - 2SGA 5.9 pH 0 2 Average Scrubber pH - 2SGA 5.9 pH 0 

### 3 Average Scrubber pH - 2SGA 5.9 pH 0 4 Average Scrubber pH - 2SGA 5.88 pH 0 

### 1 Scrubber Limestone Feed Rate - 2SGA 20986 lb/hr 0 2 Scrubber Limestone Feed Rate - 2SGA 20695 lb/hr 0 3 Scrubber Limestone Feed Rate - 2SGA 18916 lb/hr 0 

### 4 Scrubber Limestone Feed Rate - 2SGA 16067 lb/hr 0 1 Scrubber Slurry Density - 2SGA 33.32 % 0 2 Scrubber Slurry Density - 2SGA 33.11 % 0 

### 3 Scrubber Slurry Density - 2SGA 32.99 % 0 4 Scrubber Slurry Density - 2SGA 32.94 % 0 1 Total Spray Flow Rate - 2SGA 181142 gpm 0 

### 2 Total Spray Flow Rate - 2SGA 181299 gpm 0 3 Total Spray Flow Rate - 2SGA 181469 gpm 0 4 Total Spray Flow Rate - 2SGA 181910 gpm 0 

### 1 Scrubber Slurry Feed Rate Module C - 2SGA 28.54 gpm 0 2 Scrubber Slurry Feed Rate Module C - 2SGA 32.56 gpm 0 3 Scrubber Slurry Feed Rate Module C - 2SGA 26.34 gpm 0



### Monday, February 28, 2011 Page 20 of 33

### 6481_INTERMOUNTAIN 8/31/2010 4 Scrubber Slurry Feed Rate Module C - 2SGA 24.07 gpm 0 

### 1 Scrubber Slurry Feed Rate Module D - 2SGA 32.75 gpm 0 2 Scrubber Slurry Feed Rate Module D - 2SGA 29.17 gpm 0 3 Scrubber Slurry Feed Rate Module D - 2SGA 33.29 gpm 0 

### 4 Scrubber Slurry Feed Rate Module D - 2SGA 28.94 gpm 0 1 Scrubber Slurry Feed Rate Module E - 2SGA 32.52 gpm 0 2 Scrubber Slurry Feed Rate Module E - 2SGA 33.44 gpm 0 

### 3 Scrubber Slurry Feed Rate Module E - 2SGA 27.04 gpm 0 4 Scrubber Slurry Feed Rate Module E - 2SGA 22.18 gpm 0 1 Scrubber Slurry Feed Rate Module F - 2SGA 11.16 gpm 0 

### 2 Scrubber Slurry Feed Rate Module F - 2SGA 9 gpm 0 3 Scrubber Slurry Feed Rate Module F - 2SGA 8.9 gpm 0 4 Scrubber Slurry Feed Rate Module F - 2SGA 6.09 gpm 0 

### 1 C Module HP Spray Amps - 2SGA 25.37 ohms 0 2 C Module HP Spray Amps - 2SGA 25.49 ohms 0 3 C Module HP Spray Amps - 2SGA 25.66 ohms 0 

### 4 C Module HP Spray Amps - 2SGA 25.88 ohms 0 1 C Module IP Spray Amps - 2SGA 26.38 ohms 0 2 C Module IP Spray Amps - 2SGA 26.5 ohms 0 

### 3 C Module IP Spray Amps - 2SGA 26.52 ohms 0 4 C Module IP Spray Amps - 2SGA 26.55 ohms 0 

### 1 C Module LP Spray Amps - 2SGA 22.26 ohms 0 2 C Module LP Spray Amps - 2SGA 22.27 ohms 0 3 C Module LP Spray Amps - 2SGA 22.38 ohms 0 

### 4 C Module LP Spray Amps - 2SGA 22.52 ohms 0 1 D Module HP Spray Amps - 2SGA 26.09 ohms 0 2 D Module HP Spray Amps - 2SGA 25.99 ohms 0 

### 3 D Module HP Spray Amps - 2SGA 25.93 ohms 0 4 D Module HP Spray Amps - 2SGA 26.02 ohms 0 1 D Module IP Spray Amps - 2SGA 24.62 ohms 0 

### 2 D Module IP Spray Amps - 2SGA 24.82 ohms 0 3 D Module IP Spray Amps - 2SGA 24.88 ohms 0 4 D Module IP Spray Amps - 2SGA 24.81 ohms 0 

### 1 D Module LP Spray Amps - 2SGA 23.16 ohms 0 2 D Module LP Spray Amps - 2SGA 23.15 ohms 0 3 D Module LP Spray Amps - 2SGA 23.16 ohms 0



### Monday, February 28, 2011 Page 21 of 33

### 6481_INTERMOUNTAIN 8/31/2010

Process Lab Run Data 4 D Module LP Spray Amps - 2SGA 23.21 ohms 0 

### 1 E Module HP Spray Amps - 2SGA 26.18 ohms 0 2 E Module HP Spray Amps - 2SGA 26.21 ohms 0 3 E Module HP Spray Amps - 2SGA 26.23 ohms 0 

### 4 E Module HP Spray Amps - 2SGA 26.28 ohms 0 1 E Module IP Spray Amps - 2SGA 25.26 ohms 0 2 E Module IP Spray Amps - 2SGA 25.31 ohms 0 

### 3 E Module IP Spray Amps - 2SGA 25.36 ohms 0 4 E Module IP Spray Amps - 2SGA 25.51 ohms 0 1 E Module LP Spray Amps - 2SGA 24.1 ohms 0 

### 2E Module LP Spray Amps - 2SGA 23.92 ohms 0 3 E Module LP Spray Amps - 2SGA 23.79 ohms 0 4 E Module LP Spray Amps - 2SGA 23.81 ohms 0 

### 1 F Module HP Spray Amps - 2SGA 27.72 ohms 0 2 F Module HP Spray Amps - 2SGA 27.57 ohms 0 3 F Module HP Spray Amps - 2SGA 27.41 ohms 0 

### 4 F Module HP Spray Amps - 2SGA 27.21 ohms 0 1 F Module IP Spray Amps - 2SGA 24.12 ohms 0 2 F Module IP Spray Amps - 2SGA 24.29 ohms 0 

### 3 F Module IP Spray Amps - 2SGA 24.44 ohms 0 4 F Module IP Spray Amps - 2SGA 24.61 ohms 0 

### 1 F Module LP Spray Amps - 2SGA 25.09 ohms 0 2F Module LP Spray Amps - 2SGA 25.11 ohms 0 3 F Module LP Spray Amps - 2SGA 25.13 ohms 0 

### 4 F Module LP Spray Amps - 2SGA 25.21 ohms 0 1 Scrubber pH Module D - 2SGA 5.9 pH 0 2 Scrubber pH Module D - 2SGA 5.91 pH 0 

### 3 Scrubber pH Module D - 2SGA 5.91 pH 0 4 Scrubber pH Module D - 2SGA 5.88 pH 0

Run Name ValueUOM Comments 2 Formaldehyde (Gas Stream) - 1SGA 9.39 ug 

### 3 Formaldehyde (Gas Stream) - 1SGA 9.1 ug 4 Formaldehyde (Gas Stream) - 1SGA 9.36 ug 2 Higher Heating Value (Fuel) - 1SGA 11216Btu/lb



### Monday, February 28, 2011 Page 22 of 33

### 6481_INTERMOUNTAIN 8/31/2010 3 Higher Heating Value (Fuel) - 1SGA 11085Btu/lb 

### 4 Higher Heating Value (Fuel) - 1SGA 11231Btu/lb 2Moisture (Fuel) - 1SGA 8.72 % 3 Moisture (Fuel) - 1SGA 8.34 % 4 Moisture (Fuel) - 1SGA 7.44 % 

### 2 Residule Moisture (Fuel) - 1SGA Moisture (Fuel) - 1SGA 2.02 %

3 Residule Moisture (Fuel) - 1SGA Moisture (Fuel) - 1SGA 2 %



### 4 Residule Moisture (Fuel) - 1SGA Moisture (Fuel) - 1SGA 2.24 %

2 Ash Proximate (Fuel) - 1SGA 12.82 % 

### 3 Ash Proximate (Fuel) - 1SGA 13.84 % 4 Ash Proximate (Fuel) - 1SGA 13.84 % 2 Volatiles Proximate (Fuel) - 1SGA 37.52 % 3 Volatiles Proximate (Fuel) - 1SGA 36.76 % 

### 4 Volatiles Proximate (Fuel) - 1SGA 37.65 % 2Fixed Carbon (Fuel) - 1SGA 44.85 % 3 Fixed Carbon (Fuel) - 1SGA 44.8 % 4 Fixed Carbon (Fuel) - 1SGA 44.37 % 

### 2 Carbon Ultimate (Fuel) - 1SGA 68.81 % 3 Carbon Ultimate (Fuel) - 1SGA 67.91 % 4 Carbon Ultimate (Fuel) - 1SGA 67.77 % 

### 2 Hydrogen Ultimate (Fuel) - 1SGA 4.93 % 3 Hydrogen Ultimate (Fuel) - 1SGA 4.85 % 4 Hydrogen Ultimate (Fuel) - 1SGA 4.83 % 2 Nitrogent Ultimate (Fuel) - 1SGA 1.48 % 

### 3 Nitrogent Ultimate (Fuel) - 1SGA 1.44 % 4 Nitrogent Ultimate (Fuel) - 1SGA 1.44 % 2 Methane Content (Gas Stream) - 1SGA 2.3 ppm 

### 3 Methane Content (Gas Stream) - 1SGA 2.2 ppm 4 Methane Content (Gas Stream) - 1SGA 2.2 ppm 1 Formaldehyde (Gas Stream) - 2SGA 9.8 ug 2 Formaldehyde (Gas Stream) - 2SGA 9.44 ug 

### 3 Formaldehyde (Gas Stream) - 2SGA 23.1 ug 4 Formaldehyde (Gas Stream) - 2SGA 0 ug 1 Higher Heating Value (Fuel) - 2SGA 11196Btu/lb 

### 2 Higher Heating Value (Fuel) - 2SGA 11397Btu/lb 3 Higher Heating Value (Fuel) - 2SGA 11514Btu/lb 4 Higher Heating Value (Fuel) - 2SGA 11592Btu/lb 1 Moisture (Fuel) - 2SGA 8 % 

### 2Moisture (Fuel) - 2SGA 6.62 % 3 Moisture (Fuel) - 2SGA 5.82 % 4 Moisture (Fuel) - 2SGA 6.19 %



### Monday, February 28, 2011 Page 23 of 33

### 6481_INTERMOUNTAIN 8/31/2010 1 Residule Moisture (Fuel) - 2SGA 1.88 % 

### 2 Residule Moisture (Fuel) - 2SGA 1.52 % 3 Residule Moisture (Fuel) - 2SGA 1.28 % 4 Residule Moisture (Fuel) - 2SGA 1.4 % 1 Ash Proximate (Fuel) - 2SGA 13.62 % 

### 2 Ash Proximate (Fuel) - 2SGA 14.73 % 3 Ash Proximate (Fuel) - 2SGA 15.24 % 4 Ash Proximate (Fuel) - 2SGA 14.49 % 

### 1 Volatiles Proximate (Fuel) - 2SGA 37.46 % 2 Volatiles Proximate (Fuel) - 2SGA 36.64 % 3 Volatiles Proximate (Fuel) - 2SGA 36.35 % 4 Volatiles Proximate (Fuel) - 2SGA 36.52 % 

### 1 Fixed Carbon (Fuel) - 2SGA 44.48 % 2 Fixed Carbon (Fuel) - 2SGA 44.99 % 3 Fixed Carbon (Fuel) - 2SGA 45.22 % 

### 4 Fixed Carbon (Fuel) - 2SGA 45.62 % 1 Carbon Ultimate (Fuel) - 2SGA 67.87 % 2 Carbon Ultimate (Fuel) - 2SGA 67.88 % 3 Carbon Ultimate (Fuel) - 2SGA 68.09 % 

### 4 Carbon Ultimate (Fuel) - 2SGA 68.95 % 1 Hydrogen Ultimate (Fuel) - 2SGA 4.85 % 2 Hydrogen Ultimate (Fuel) - 2SGA 4.8 % 

### 3 Hydrogen Ultimate (Fuel) - 2SGA 4.8 % 4 Hydrogen Ultimate (Fuel) - 2SGA 4.99 % 1 Nitrogent Ultimate (Fuel) - 2SGA 1.45 % 2 Nitrogent Ultimate (Fuel) - 2SGA 1.52 % 

### 3 Nitrogent Ultimate (Fuel) - 2SGA 1.57 % 4 Nitrogent Ultimate (Fuel) - 2SGA 1.58 % 1 Methane Content (Gas Stream) - 2SGA 2.5 ppm 

### 2Methane Content (Gas Stream) - 2SGA 2.5 ppm 3 Methane Content (Gas Stream) - 2SGA 2.5 ppm 4 Methane Content (Gas Stream) - 2SGA 0 ppm



### Monday, February 28, 2011 Page 24 of 33

### 6481_INTERMOUNTAIN 8/31/2010 Sampling / Stack Data Results Detail 

### Location2SGA - EPA Method 316 Average Run Number M316-1 M316-2 M316-3 Test Date 6/16/2010 6/16/2010 6/16/2010 Run Start Time 8:37:00 AM11:14:00 AM 1:43:00 PM Run Finish Time 10:27:00 AM1:04:00 PM3:33:00 PM Net Traversing Points 12 12 12 Net Run Time, minutes 120 120 120 Nozzle Diameter, inches 0.18 0.18 0.18 0.180 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 1.0033 1.0033 1.0033 1.003 Barometric Pressure, inches of Mercury 24.86 24.86 24.86 24.860 Average Orifice Meter Differential, inches H2O 1.41 1.48 1.49 1.460 Dry Gas Meter Volume Sampled, cubic feet 83.053 86.623 87.211 85.629 Average Dry Gas Meter Temperature, °F 87.04 92.29 93.83 91.053 Dry Gas Meter Volume Sampled, dscf 67.104 69.337 69.616 68.686 Total Moisture Liquid collected, g 210.7 226.9 232.6 223.400 Volume of Water Vapor, standard cubic feet 9.92 10.68 10.95 10.517 Moisture Content of Stack Gas, % 12.88 13.35 13.59 13.273 Moisture Saturation at Stack Gas Temperature, % 13.84 13.93 14.22 13.997 Dry Mole Fraction 0.8712 0.8665 0.8641 0.867 Carbon Dioxide, % 13.89 13.89 13.83 13.870 Oxygen, % 5.59 5.6 5.65 5.613 Carbon Monoxide & Nitrogen, % 80.52 80.51 80.52 80.517 Fuel Factor 1.10 1.10 1.10 Dry Molecular Weight, lb/lb-Mole 30.45 30.45 30.44 30.447 Wet Molecular weight, lb/lb-Mole 28.85 28.79 28.75 28.797 Flue Gas Static Pressure, inches of H2O -0.6 -0.6 -0.6 -0.600 Absolute Flue Gas Pressure, inches of Mercury 24.82 24.82 24.82 24.820 Average Stack Gas Temperature, °F 119.92 120.17 120.92 120.337 Average Velocity Head, inches of H2O 1.5733360916 84271.652152669

32521.670552727

40467 1.632 Average Stack Gas Velocity, feet/second 81.06 83.17 83.75 82.660 Stack Cross-Sectional Area, square feet 615.752 615.752 615.752 615.752 Dry Volumetric Flow Rate, dry scfm 1,970,550.52,010,070.02,015,875.41,998,831.9 67 Actual Wet Volumetric Flue Gas Flow Rate, acfm 2,994,771.43,072,725.63,094,153.83,053,883.6 00 Percent Isokinetic of Sampling Rate, % 98.9 100.2 100.3 99.800 Percent Excess Air, % 35.7 35.8 36.2 35.900 F-Factor, dscfm/MMBtu @ %O2 9647 9652 96959,664.667 Round Duct Diameter, inches 336 336 336 Rectangular Duct Width, inches 0 0 0 Rectangular Duct Length, inches 0 0 0 Fw 10566 10532 1055910,552.333 Fc 0 0 0 0.000



### Monday, February 28, 2011 Page 25 of 33

### 6481_INTERMOUNTAIN 8/31/2010 Location2SGA - Method 1 - 4 Average Run Number 1 Test Date 6/16/2010 Run Start Time 4:03:00 PM Run Finish Time 5:53:00 PM Net Traversing Points 13 Net Run Time, minutes 120 Nozzle Diameter, inches Pitot Tube Coefficient 0.84 0.840 Dry Gas Meter Calibration Factor 1.0033 1.003 Barometric Pressure, inches of Mercury 24.72 24.720 Average Orifice Meter Differential, inches H2O 1.30 1.300 Dry Gas Meter Volume Sampled, cubic feet 79.184 79.184 Average Dry Gas Meter Temperature, °F 93.38 93.380 Dry Gas Meter Volume Sampled, dscf 62.870 62.870 Total Moisture Liquid collected, g 192.1 192.100 Volume of Water Vapor, standard cubic feet 9.04 9.040 Moisture Content of Stack Gas, % 12.57 12.570 Moisture Saturation at Stack Gas Temperature, % 14.78 14.780 Dry Mole Fraction 0.8743 0.874 Carbon Dioxide, % 13.22 13.220 Oxygen, % 6.11 6.110 Carbon Monoxide & Nitrogen, % 80.67 80.670 Fuel Factor 1.12 Dry Molecular Weight, lb/lb-Mole 30.36 30.360 Wet Molecular weight, lb/lb-Mole 28.81 28.810 Flue Gas Static Pressure, inches of H2O -1.45 -1.450 Absolute Flue Gas Pressure, inches of Mercury 24.61 24.610 Average Stack Gas Temperature, °F 122.00 122.000 Average Velocity Head, inches of H2O 1.9714878957 044 1.971 Average Stack Gas Velocity, feet/second 91.35 91.350 Stack Cross-Sectional Area, square feet 615.752 615.752 Dry Volumetric Flow Rate, dry scfm 2,201,846.7 2,201,846.7 00 Actual Wet Volumetric Flue Gas Flow Rate, acfm 3,374,936.7 3,374,936.7 00 Percent Isokinetic of Sampling Rate, % Percent Excess Air, % 40.2 40.200 F-Factor, dscfm/MMBtu @ %O2 9763 9,763.000 Round Duct Diameter, inches 336 Rectangular Duct Width, inches 0 Rectangular Duct Length, inches 0 Fw 10654 10,654.000 Fc 0 0.000



### Monday, February 28, 2011 Page 26 of 33

### 6481_INTERMOUNTAIN 8/31/2010 Location2SGA - Method 10 Average Run Number 1 2 3 Test Date 6/16/2010 6/16/2010 6/16/2010 Run Start Time 8:32:00 AM11:13:00 AM 1:40:00 PM Run Finish Time 10:31:00 AM1:12:00 PM3:39:00 PM Carbon Dioxide, % 13.42 13.22 13.11 13.250 Oxygen, % 5.91 6.07 6.2 6.060 Fuel Factor 1.12 1.12 1.12 Dry Volumetric Flow Rate, dry scfm 2263815 231951 23313511,609,039.0 00 F-Factor, dscfm/MMBtu @ %O2 9647 9652 96959,664.667 Moisture, % 12.96 13.43 13.68 13.357 Analyzer Make TECO TECO TECO Analyzer Model 48C 48C 48C Analyzer Serial Number Operating Range 505 505 505 505.000 Operating Units ppm ppm ppm No. Readings/Avg. 60 60 60 60.000 Calibration Set 4 5 5 4.667 Calibration Pre Zero Cylinder ID Zero Gas Zero Gas Zero Gas Calibration Pre Zero Cylinder Instrument Response -0.36 -1.31 0.09 -0.527 Calibration Pre Zero Cylinder Bias 0.07 -0.11 0.16 0.040 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CC249349-CO CC71524- COCC71524-CO Calibration Pre High Cylinder Instrument Response 99.16 187.65 187.16 157.990 Calibration Pre High Cylinder Bias -0.05 -2.26 -2.35 -1.553 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID Zero Gas Zero Gas Zero Gas Calibration Post Zero Cylinder Instrument Response -1.31 0.09 -1.46 -0.893 Calibration Post Zero Cylinder Bias -0.11 0.16 -0.14 -0.030 Calibration Post Zero Cylinder Drift 0.18 0.27 0.3 0.250 Calibration Post High Cylinder ID CC249349-CO CC71524- COCC71524-CO Calibration Post High Cylinder Instrument Response 99.73 187.16 186.78 157.890 Calibration Post High Cylinder Bias 0.06 -2.35 -2.43 -1.573 Calibration Post High Cylinder Drift 0.119.000000000 00003E-028.000000000

00001E-02 0.093 Cavg 572.43 387.27 348.92 436.207 Cavg Units ppmvd ppmvd ppmvd Cgas 568.806 412.6054 372.604 451.338 Cgas Units ppmvd ppmvd ppmvd Fuel Type Override Override Override Fw 10566 10532 1055910,552.333 Fc 0 0 0 0.000 Cgasw 0 0 0 0.000 Cgasw Units



### Monday, February 28, 2011 Page 27 of 33

### 6481_INTERMOUNTAIN 8/31/2010 Location2SGA - Method 10 3 Average Run Number 4 Test Date 6/16/2010 Run Start Time 4:00:00 PM Run Finish Time 5:59:00 PM Carbon Dioxide, % 13.22 13.220 Oxygen, % 6.11 6.110 Fuel Factor 1.12 Dry Volumetric Flow Rate, dry scfm 2517279 2,517,279.0 00 F-Factor, dscfm/MMBtu @ %O2 9763 9,763.000 Moisture, % 12.66 12.660 Analyzer Make TECO Analyzer Model 48C Analyzer Serial Number Operating Range 505 505.000 Operating Units ppm No. Readings/Avg. 60 60.000 Calibration Set 5 5.000 Calibration Pre Zero Cylinder ID Zero Gas Calibration Pre Zero Cylinder Instrument Response -1.46 -1.460 Calibration Pre Zero Cylinder Bias -0.14 -0.140 Calibration Pre Zero Cylinder Drift 0 0.000 Calibration Pre High Cylinder ID CC71524-CO Calibration Pre High Cylinder Instrument Response 186.78 186.780 Calibration Pre High Cylinder Bias -2.43 -2.430 Calibration Pre High Cylinder Drift 0 0.000 Calibration Post Zero Cylinder ID Zero Gas Calibration Post Zero Cylinder Instrument Response -0.63 -0.630 Calibration Post Zero Cylinder Bias 0.02 0.020 Calibration Post Zero Cylinder Drift 0.16 0.160 Calibration Post High Cylinder ID CC71524-CO Calibration Post High Cylinder Instrument Response 187.8 187.800 Calibration Post High Cylinder Bias -2.23 -2.230 Calibration Post High Cylinder Drift 0.2 0.200 Cavg 315.91 315.910 Cavg Units ppmvd Cgas 336.5864 336.586 Cgas Units ppmvd Fuel Type Override Fw 10654 10,654.000 Fc 0 0.000 Cgasw 0 0.000 Cgasw Units



### Monday, February 28, 2011 Page 28 of 33

### 6481_INTERMOUNTAIN 8/31/2010 Location2SGA - Method 25A Average Run Number 1 2 3 Test Date 6/16/2010 6/16/2010 6/16/2010 Run Start Time 8:32:00 AM11:13:00 AM 1:40:00 PM Run Finish Time 10:31:00 AM1:12:00 PM3:39:00 PM Carbon Dioxide, % 13.42 13.22 13.11 13.250 Oxygen, % 5.91 6.07 6.2 6.060 Fuel Factor 1.12 1.12 1.12 Dry Volumetric Flow Rate, dry scfm 2263815 2319571 23313512,304,912.3 33 F-Factor, dscfm/MMBtu @ %O2 9647 9652 96959,664.667 Moisture, % 12.96 13.43 13.68 13.357 Analyzer Make VIG VIG VIG Analyzer Model 20/2 20/2 20/2 Analyzer Serial Number Operating Range 10 10 10 10.000 Operating Units ppm ppm ppm No. Readings/Avg. 60 60 60 60.000 Calibration Set 6 6 6 6.000 Calibration Pre Zero Cylinder ID Zero Gas Zero Gas Zero Gas Calibration Pre Zero Cylinder Instrument Response 0.08 0.28 0.25 0.203 Calibration Pre Zero Cylinder Bias 0 2 1.7 1.233 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CC150368- THCCC150368-

THC CC150368-

THC Calibration Pre High Cylinder Instrument Response 4.12 4.18 4.06 4.120 Calibration Pre High Cylinder Bias 0 0.6 -0.6 0.000 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID Zero Gas Zero Gas Zero Gas Calibration Post Zero Cylinder Instrument Response 0.28 0.25 0.23 0.253 Calibration Post Zero Cylinder Bias 2 1.7 1.5 1.733 Calibration Post Zero Cylinder Drift 2 0.3 0.2 0.833 Calibration Post High Cylinder ID CC150368- THCCC150368-

THC CC150368-

THC Calibration Post High Cylinder Instrument Response 4.18 4.06 4.17 4.137 Calibration Post High Cylinder Bias 0.6 -0.6 0.5 0.167 Calibration Post High Cylinder Drift 0.6 1.2 1.1 0.967 Cavg 0.36 0.44 0.36 0.387 Cavg Units ppmvd ppmvd ppmvd Cgas 0.1832 0.1834 0.1251 0.164 Cgas Units ppmvd ppmvd ppmvd Fuel Type Override Override Override Fw 10566 10532 1055910,552.333 Fc 0 0 0 0.000 Cgasw 0 0 0 0.000 Cgasw Units



### Monday, February 28, 2011 Page 29 of 33

### 6481_INTERMOUNTAIN 8/31/2010 Location2SGA - Method 3A CO2 Average Run Number 1 2 3 Test Date 6/16/2010 6/16/2010 6/16/2010 Run Start Time 8:32:00 AM11:13:00 AM 1:40:00 PM Run Finish Time 10:31:00 AM1:12:00 PM3:39:00 PM Carbon Dioxide, % 13.42 13.22 13.11 13.250 Oxygen, % 5.91 6.07 6.2 6.060 Fuel Factor 1.12 1.12 1.12 Dry Volumetric Flow Rate, dry scfm 2263815 2319571 23313512,304,912.3 33 F-Factor, dscfm/MMBtu @ %O2 9647 9652 96959,664.667 Moisture, % 12.96 13.43 13.68 13.357 Analyzer Make Servomex Servomex Servomex Analyzer Model 4900 4900 49004,900.000 Analyzer Serial Number Operating Range 25 25 25 25.000 Operating Units % % % No. Readings/Avg. 60 60 60 60.000 Calibration Set 8 8 8 8.000 Calibration Pre Zero Cylinder ID Zero Gas Zero Gas Zero Gas Calibration Pre Zero Cylinder Instrument Response -0.03 0.1 0.12 0.063 Calibration Pre Zero Cylinder Bias 0.04 0.56 0.64 0.413 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CC155303- CO2CC155303-

CO2 CC155303-

CO2 Calibration Pre High Cylinder Instrument Response 11.79 11.76 11.83 11.793 Calibration Pre High Cylinder Bias -0.76 -0.88 -0.6 -0.747 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID Zero Gas Zero Gas Zero Gas Calibration Post Zero Cylinder Instrument Response 0.1 0.12 0.06 0.093 Calibration Post Zero Cylinder Bias 0.56 0.64 0.4 0.533 Calibration Post Zero Cylinder Drift 0.52 0.08 0.24 0.280 Calibration Post High Cylinder ID CC155303- CO2CC155303-

CO2 CC155303-

CO2 Calibration Post High Cylinder Instrument Response 11.76 11.83 11.74 11.777 Calibration Post High Cylinder Bias -0.88 -0.6 -0.96 -0.813 Calibration Post High Cylinder Drift 0.12 0.28 0.36 0.253 Cavg 12.95 12.78 12.65 12.793 Cavg Units %vd %vd %vd Cgas 13.421 13.2284 13.1024 13.251 Cgas Units %vd %vd %vd Fuel Type Override Override Override Fw 10566 10532 1055910,552.333 Fc 0 0 0 0.000 Cgasw 0 0 0 0.000 Cgasw Units



### Monday, February 28, 2011 Page 30 of 33

### 6481_INTERMOUNTAIN 8/31/2010 Location2SGA - Method 3A CO2 3 Average Run Number 4 Test Date 6/16/2010 Run Start Time 4:00:00 PM Run Finish Time 5:59:00 PM Carbon Dioxide, % 13.22 13.220 Oxygen, % 6.11 6.110 Fuel Factor 1.12 Dry Volumetric Flow Rate, dry scfm 2517279 2,517,279.0 00 F-Factor, dscfm/MMBtu @ %O2 9763 9,763.000 Moisture, % 12.66 12.660 Analyzer Make Servomex Analyzer Model 4900 4,900.000 Analyzer Serial Number Operating Range 25 25.000 Operating Units % No. Readings/Avg. 60 60.000 Calibration Set 8 8.000 Calibration Pre Zero Cylinder ID Zero Gas Calibration Pre Zero Cylinder Instrument Response 0.06 0.060 Calibration Pre Zero Cylinder Bias 0.4 0.400 Calibration Pre Zero Cylinder Drift 0 0.000 Calibration Pre High Cylinder ID CC155303- CO2 Calibration Pre High Cylinder Instrument Response 11.74 11.740 Calibration Pre High Cylinder Bias -0.96 -0.960 Calibration Pre High Cylinder Drift 0 0.000 Calibration Post Zero Cylinder ID Zero Gas Calibration Post Zero Cylinder Instrument Response 0.08 0.080 Calibration Post Zero Cylinder Bias 0.48 0.480 Calibration Post Zero Cylinder Drift 0.08 0.080 Calibration Post High Cylinder ID CC155303- CO2 Calibration Post High Cylinder Instrument Response 11.89 11.890 Calibration Post High Cylinder Bias -0.36 -0.360 Calibration Post High Cylinder Drift 0.6 0.600 Cavg 12.8 12.800 Cavg Units %vd Cgas 13.2232 13.223 Cgas Units %vd Fuel Type Override Fw 10654 10,654.000 Fc 0 0.000 Cgasw 0 0.000 Cgasw Units



### Monday, February 28, 2011 Page 31 of 33

### 6481_INTERMOUNTAIN 8/31/2010 Location2SGA - Method 3A O2 Average Run Number 1 2 3 Test Date 6/15/2010 6/16/2010 6/16/2010 Run Start Time 8:32:00 AM11:13:00 AM 1:40:00 PM Run Finish Time 10:31:00 AM1:12:00 PM3:39:00 PM Carbon Dioxide, % 13.42 13.22 13.11 13.250 Oxygen, % 5.91 6.07 6.2 6.060 Fuel Factor 1.12 1.12 1.12 Dry Volumetric Flow Rate, dry scfm 2263815 2319571 23313512,304,912.3 33 F-Factor, dscfm/MMBtu @ %O2 9647 9652 96959,664.667 Moisture, % 12.96 13.43 13.68 13.357 Analyzer Make Servomex Servomex Servomex Analyzer Model 4900 4900 49004,900.000 Analyzer Serial Number Operating Range 25 25 25 25.000 Operating Units % % % No. Readings/Avg. 60 60 60 60.000 Calibration Set 9 9 9 9.000 Calibration Pre Zero Cylinder ID Zero Gas Zero Gas Zero Gas Calibration Pre Zero Cylinder Instrument Response 0.04 0.05 0.17 0.087 Calibration Pre Zero Cylinder Bias 0 0.04 0.52 0.187 Calibration Pre Zero Cylinder Drift 0 0 0 0.000 Calibration Pre High Cylinder ID CC155303-O2CC155303- O2 CC155303-

O2 Calibration Pre High Cylinder Instrument Response 11.98 12.13 12.13 12.080 Calibration Pre High Cylinder Bias -1 -0.4 -0.4 -0.600 Calibration Pre High Cylinder Drift 0 0 0 0.000 Calibration Post Zero Cylinder ID Zero Gas Zero Gas Zero Gas Calibration Post Zero Cylinder Instrument Response 0.05 0.17 0.25 0.157 Calibration Post Zero Cylinder Bias 0.04 0.52 0.84 0.467 Calibration Post Zero Cylinder Drift 0.04 0.48 0.32 0.280 Calibration Post High Cylinder ID CC155303-O2CC155303- O2 CC155303-

O2 Calibration Post High Cylinder Instrument Response 12.13 12.13 12.11 12.123 Calibration Post High Cylinder Bias -0.4 -0.4 -0.48 -0.427 Calibration Post High Cylinder Drift 0.6 0 0.08 0.227 Cavg 5.91 6.14 6.32 6.123 Cavg Units %vd %vd %vd Cgas 5.909 6.0701 6.2075 6.062 Cgas Units %vd %vd %vd Fuel Type Override Override Override Fw 10566 10532 1055910,552.333 Fc 0 0 0 0.000 Cgasw 0 0 0 0.000 Cgasw Units



### Monday, February 28, 2011 Page 32 of 33

### 6481_INTERMOUNTAIN 8/31/2010 Location2SGA - Method 3A O2 3 Average Run Number 4 Test Date 6/16/2010 Run Start Time 4:00:00 PM Run Finish Time 5:59:00 PM Carbon Dioxide, % 13.22 13.220 Oxygen, % 6.11 6.110 Fuel Factor 1.12 Dry Volumetric Flow Rate, dry scfm 2517279 2,517,279.0 00 F-Factor, dscfm/MMBtu @ %O2 9763 9,763.000 Moisture, % 12.66 12.660 Analyzer Make Servomex Analyzer Model 4900 4,900.000 Analyzer Serial Number Operating Range 25 25.000 Operating Units % No. Readings/Avg. 60 60.000 Calibration Set 9 9.000 Calibration Pre Zero Cylinder ID Zero Gas Calibration Pre Zero Cylinder Instrument Response 0.25 0.250 Calibration Pre Zero Cylinder Bias 0.84 0.840 Calibration Pre Zero Cylinder Drift 0 0.000 Calibration Pre High Cylinder ID CC155303-O2 Calibration Pre High Cylinder Instrument Response 12.11 12.110 Calibration Pre High Cylinder Bias -0.48 -0.480 Calibration Pre High Cylinder Drift 0 0.000 Calibration Post Zero Cylinder ID Zero Gas Calibration Post Zero Cylinder Instrument Response 0.05 0.050 Calibration Post Zero Cylinder Bias 0.04 0.040 Calibration Post Zero Cylinder Drift 0.8 0.800 Calibration Post High Cylinder ID CC155303-O2 Calibration Post High Cylinder Instrument Response 12.05 12.050 Calibration Post High Cylinder Bias -0.72 -0.720 Calibration Post High Cylinder Drift 0.24 0.240 Cavg 6.18 6.180 Cavg Units %vd Cgas 6.1159 6.116 Cgas Units %vd Fuel Type Override Fw 10654 10,654.000 Fc 0 0.000 Cgasw 0 0.000 Cgasw Units



### Monday, February 28, 2011 Page 33 of 33