Name: Terry Graumann

Title: Manager, Environmental Services

Company: Otter Tail Power Company

Sign Date: 8/12/2010

Name: Ed Juers

Title: Manager

Company: Interpoll Laboratories, Inc.

Sign Date: 6/10/2010

Permitted Facility Representative / Date Testing Company Representative / Date

Final Test Report 

for

/ /

Based on information and belief formed 

after reasonable inquiry, I certify that the 

statements and information in this test 

report are true, accurate, and complete.

I have reviewed all testing details and 

results in this test report and hereby 

certify that the test report is authentic 

and accurate.

Thursday, February 10, 2011 Page 1 of 15
8/12/2010

Facility Information:

Big Stone

48450 144th St.

Big Stone City SD 57216

Contact: Mark Thoma

Phone: 218-739-8526

Fax: 218-739-8629

Email: mthoma@otpco.com

Testing Company:

Interpoll Laboratories, Inc.

4500 Ball Road N.E.

Circle Pines MN 55014

Contact:Ed Juers

Phone: 763-456-6020

Fax: 763-786-7854

Email: ed.juers@interpoll-labs.com

Air Permit Number:

6098

Permitted Source ID/Name:

1 Enter the Boiler ID of the tested boiler (left)

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:

Big Stone Plant is a steam-to-electric conversion facility. The main boiler is primarily fired with subbituminous coal, 

and it is equipped with overfire air and a fabric filter for pollution control.

Industry/SCC/NAIS 221112

Sampling Location Information:

Test Parameter Information:

AFS #: FRS #: 110011493437

SCC / Description 10100223 External Combustion Boilers - Electric Generation - Bituminous/Subbituminous 

Coal - Cyclone Furnace (Subbituminous 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 290 0 0 0 2514 2583 4 12

Target

Parameter 

Test

Method

Number of

Test Runs

Test Run

Duration

Sample 

Location Points Comments

Stack Exit % H2O Method 1 - 4 3 240 0

Stack Exit % H2O Method 1 - 4 3 120 0

Stack Exit % H2O Method 1 - 4 3 180 0

Stack Exit % H2O Method 1 - 4 3 480 0

Organic Condensible 

Particulate

OTM - 27/28 3 240 0 Use only for dry 

stacks. Delete Method 

5/OTM28 tests.

Stack Exit

Thursday, February 10, 2011 Page 2 of 15
8/12/2010

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.

As instructed by EPA on the ICR website (https://utilitymacticr.rti.org/FAQ/FAQEmissionsTesting.aspx#TEST-021), 

the following modifications will be made to Method 29 for mercury measurement:

1. The procedures for preparation of mercury standards and sample analysis in sections 13.4.1.1 through 13.4.1.3 of 

ASTM D6784-02 will be followed instead of the procedures in sections 7.5.33 and 11.1.3 of Method 29; and 

2. The QA/QC procedures in section 13.4.2 of ASTM D6784-02 will be performed instead of the procedures in 

section 9.2.3 of Method 29

Filterable Particulate OTM - 27/28 3 240 0 Use only for dry 

stacks. Delete Method 

5/OTM28 tests.

Stack Exit

Inorganic (Aqueous) 

Condensible Part.

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 PM2.5 OTM - 27/28 3 240 0 Use only for dry 

stacks. Delete Method 

5/OTM28 tests.

Stack Exit

Stack Exit Selenium Method 29 3 240 0

Stack Exit Arsenic Method 29 3 240 0

Stack Exit Beryllium Method 29 3 240 0

Stack Exit Cadmium Method 29 3 240 0

Stack Exit Chromium Method 29 3 240 0

Stack Exit Lead Method 29 3 240 0

Stack Exit Magnesium Method 29 3 240 0

Stack Exit Manganese Method 29 3 240 0

Stack Exit Nickel Method 29 3 240 0

Stack Exit Filterable Particulate Method 29 3 240 0

Stack Exit Antimony Method 29 3 240 0

Stack Exit Cobalt Method 29 3 240 0

Stack Exit Mercury Method 29 3 240 0

Stack Exit Co2 Method 3A CO2 3 480 0 Dilution Probe used

Stack Exit O2 Method 3A O2 3 240 0

Stack Exit Co2 Method 3A CO2 3 240 0 Dilution probe used

Stack Exit Co2 Method 3A CO2 3 120 0 Dilution probe used

Stack Exit O2 Method 3A O2 3 120 0

Stack Exit O2 Method 3A O2 3 480 0

Thursday, February 10, 2011 Page 3 of 15
8/12/2010

Sampling / Stack Data Results Summary

Location Stack Exit - Method 29 

Average

Run Number 1 2 3

Test Date 4/27/2010 4/28/2010 4/29/2010

Run Start Time 7:30:00 AM 7:00:00 

AM

7:00:00 AM

Run Finish Time 1:56:00 PM 4:11:00 PM 1:18:00 PM

Net Run Time, minutes 360 360 360

Dry Gas Meter Volume Sampled, dscf 188.912 191.220 190.586 190.239

Moisture Content of Stack Gas, % 12.09 11.35 11.98 11.807

Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000

Carbon Dioxide, % 14.42 14.18 14.01 14.203

Oxygen, % 5.79 5.85 6.17 5.937

Average Stack Gas Temperature, °F 295.92 299.58 299.92 298.473

Dry Volumetric Flow Rate, dry scfm 1,292,840.0 1,314,383.7 1,307,406.9 1,304,876.86

7

Actual Wet Volumetric Flue Gas Flow Rate, acfm 2,216,592.9 2,261,453.2 2,301,634.8 2,259,893.63

3

Percent Isokinetic of Sampling Rate, % 99.7 99.3 99.5 99.500

F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000

Fw 10640 10640 10640 10,640.000

Fc 1840 1840 1840 1,840.000

Location Stack Exit - Method 3A CO2

Average

Run Number

Test Date

Run Start Time

Run Finish Time

Carbon Dioxide, % 7:30:00 AM 7:00:00 

AM

7:00:00 AM

Oxygen, %

Dry Volumetric Flow Rate, dry scfm Stack Exit Stack Exit Stack Exit

F-Factor, dscfm/MMBtu @ %O2 0.06 0.23 0.23 0.173

Moisture, % 1 2 3 2.000

Fuel Type 0.06 -0.17 -0.4

Fw 12.529 12.445 12.196 12.390

Fc pptvw %vw %vw

Thursday, February 10, 2011 Page 4 of 15
8/12/2010

Location Stack Exit - Method 3A O2

Average

Run Number 1 2 3

Test Date 4/27/2010 4/28/2010 4/29/2010

Run Start Time 7:30:00 AM 7:00:00 

AM

7:00:00 AM

Run Finish Time 2:01:00 PM 4:17:00 PM 2:04:00 PM

Carbon Dioxide, % 14.42 14.18 14.01 14.203

Oxygen, % 5.79 5.85 6.17 5.937

Dry Volumetric Flow Rate, dry scfm 0 0 0.000

F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000

Moisture, % 13.21 12.15 12.43 12.597

Fuel Type Override Override Override

Fw 10640 10640 10640 10,640.000

Fc 1800 1800 1800 1,800.000

Location Stack Exit - OTM - 27/28

Average

Run Number

Test Date

Run Start Time

Run Finish Time

Net Run Time, minutes

Dry Gas Meter Volume Sampled, dscf

Moisture Content of Stack Gas, %

Moisture Saturation at Stack Gas Temperature, %

Carbon Dioxide, %

Oxygen, %

Average Stack Gas Temperature, °F

Dry Volumetric Flow Rate, dry scfm

Actual Wet Volumetric Flue Gas Flow Rate, acfm

Percent Isokinetic of Sampling Rate, %

F-Factor, dscfm/MMBtu @ %O2

Fw

Fc

Thursday, February 10, 2011 Page 5 of 15
8/12/2010

Emissions Summary

Location: Stack Exit - Method 29 

Compound: Antimony

Average

RunNumber 1 2 3

Mass_mg 0.022 0.022 0.022 0.022

Elb/hr 1.99E-02 2.00E-02 2.00E-02 0.020

lb/mmBtuO2 3.49E-06 3.46E-06 3.55E-06 0.000

mg/dscm 4.11E-03 4.06E-03 4.08E-03 0.004

mg/dscm@7%O2 3.78E-03 3.75E-03 3.85E-03 0.004

Compound: Arsenic

Average

RunNumber 1 2 3

Mass_mg 0.0176 0.0176 0.0176 0.018

Elb/hr 1.59E-02 1.60E-02 1.60E-02 0.016

lb/mmBtuO2 2.79E-06 2.77E-06 2.84E-06 0.000

mg/dscm 3.29E-03 3.25E-03 3.26E-03 0.003

mg/dscm@7%O2 3.03E-03 3.00E-03 3.08E-03 0.003

Compound: Beryllium

Average

RunNumber 1 2 3

Mass_mg 0.012 0.012 0.012 0.012

Elb/hr 1.09E-02 1.09E-02 1.09E-02 0.011

lb/mmBtuO2 1.90E-06 1.89E-06 1.93E-06 0.000

mg/dscm 2.24E-03 2.22E-03 2.22E-03 0.002

mg/dscm@7%O2 2.06E-03 2.05E-03 2.09E-03 0.002

Compound: Cadmium

Average

RunNumber 1 2 3

Mass_mg 0.011 0.011 0.011 0.011

Elb/hr 9.96E-03 1.00E-02 9.98E-03 0.010

lb/mmBtuO2 1.74E-06 1.73E-06 1.77E-06 0.000

mg/dscm 2.06E-03 2.03E-03 2.04E-03 0.002

mg/dscm@7%O2 1.90E-03 1.87E-03 1.93E-03 0.002

Compound: Chromium

Average

RunNumber 1 2 3

Mass_mg 0.0416 0.0458 0.0414 0.043

Elb/hr 3.77E-02 4.16E-02 3.76E-02 0.039

lb/mmBtuO2 6.59E-06 7.20E-06 6.67E-06 0.000

mg/dscm 7.78E-03 8.46E-03 7.67E-03 0.008

mg/dscm@7%O2 7.16E-03 7.81E-03 7.24E-03 0.007

Compound: Cobalt

Average

RunNumber 1 2 3

Mass_mg 0.044 0.044 0.044 0.044

Elb/hr 3.98E-02 4.00E-02 3.99E-02 0.040

Thursday, February 10, 2011 Page 6 of 15
8/12/2010

lb/mmBtuO2 6.97E-06 6.92E-06 7.09E-06 0.000

mg/dscm 8.23E-03 8.13E-03 8.15E-03 0.008

mg/dscm@7%O2 7.57E-03 7.51E-03 7.69E-03 0.008

Compound: Filterable Particulate

Average

RunNumber 1 2 3

Mass_mg 21 18.3 18.4 19.233

Elb/hr 1.90E+01 1.66E+01 1.67E+01 17.433

lb/mmBtuO2 3.33E-03 2.88E-03 2.97E-03 0.003

mg/dscm 3.93E+00 3.38E+00 3.41E+00 3.573

mg/dscm@7%O2 3.62E+00 3.12E+00 3.22E+00 3.320

Compound: Lead

Average

RunNumber 1 2 3

Mass_mg 0.0214 0.0216 0.0222 0.022

Elb/hr 1.94E-02 1.96E-02 2.01E-02 0.020

lb/mmBtuO2 3.39E-06 3.40E-06 3.58E-06 0.000

mg/dscm 4.00E-03 3.99E-03 4.11E-03 0.004

mg/dscm@7%O2 3.68E-03 3.69E-03 3.88E-03 0.004

Compound: Magnesium

Average

RunNumber 1 2 3

Mass_mg 0 0 0 0.000

Elb/hr 0.00E+00 0.00E+00 0.00E+00 0.000

lb/mmBtuO2 0.00E+00 0.00E+00 0.00E+00 0.000

mg/dscm 0.00E+00 0.00E+00 0.00E+00 0.000

mg/dscm@7%O2 0.00E+00 0.00E+00 0.00E+00 0.000

Compound: Manganese

Average

RunNumber 1 2 3

Mass_mg 0.0136 0.0178 29.608 9.880

Elb/hr 1.23E-02 1.62E-02 2.69E+01 8.976

lb/mmBtuO2 2.16E-06 2.80E-06 4.77E-03 0.002

mg/dscm 2.54E-03 3.29E-03 5.49E+00 1.832

mg/dscm@7%O2 2.34E-03 3.04E-03 5.18E+00 1.728

Compound: Mercury

Average

RunNumber 1 2 3

Mass_mg 0.03235 0.02965 0.04225 0.035

Elb/hr 2.93E-02 2.70E-02 3.83E-02 0.032

lb/mmBtuO2 5.13E-06 4.66E-06 6.81E-06 0.000

mg/dscm 6.05E-03 5.48E-03 7.83E-03 0.006

mg/dscm@7%O2 5.57E-03 5.06E-03 7.39E-03 0.006

Compound: Nickel

Average

RunNumber 1 2 3

Mass_mg 0.011 0.012 0.011 0.011

Elb/hr 9.96E-03 1.09E-02 9.98E-03 0.010

Thursday, February 10, 2011 Page 7 of 15
8/12/2010

Process Run Data

lb/mmBtuO2 1.74E-06 1.89E-06 1.77E-06 0.000

mg/dscm 2.06E-03 2.22E-03 2.04E-03 0.002

mg/dscm@7%O2 1.90E-03 2.05E-03 1.93E-03 0.002

Compound: Selenium

Average

RunNumber 1 2 3

Mass_mg 0.044 0.044 0.044 0.044

Elb/hr 3.98E-02 4.00E-02 3.99E-02 0.040

lb/mmBtuO2 6.97E-06 6.92E-06 7.09E-06 0.000

mg/dscm 8.23E-03 8.13E-03 8.15E-03 0.008

mg/dscm@7%O2 7.57E-03 7.51E-03 7.69E-03 0.008

Location: Stack Exit - OTM - 27/28

Compound: Filterable Particulate

Average

RunNumber 1 2 3

Mass_mg 15.6 21.1 18.7 18.467

lb/mmBtuO2 3.73E-03 4.94E-03 4.51E-03 0.004

Compound: Filterable PM2.5

Average

RunNumber 1 2 3

Mass_mg 4.2 11 5.7 6.967

lb/mmBtuO2 1.01E-03 2.57E-03 1.38E-03 0.002

Compound: Inorganic (Aqueous) Condensible Pa

Average

RunNumber 1 2 3

Mass_mg 35.71 30.77 26.48 30.987

lb/mmBtuO2 8.55E-03 7.20E-03 6.39E-03 0.007

Compound: Organic Condensible Particulate

Average

RunNumber 1 2 3

Mass_mg 0.7 1.1 0.3 0.700

lb/mmBtuO2 1.68E-04 2.57E-04 7.24E-05 0.000

Compound: Total Particulate

Average

RunNumber 1 2 3

Mass_mg 52.01 52.97 45.48 50.153

lb/mmBtuO2 1.24E-02 1.24E-02 1.10E-02 0.012

Compound: Total PM2.5

Average

RunNumber 1 2 3

Mass_mg 40.61 42.87 32.48 38.653

lb/mmBtuO2 9.72E-03 1.00E-02 7.84E-03 0.009

Thursday, February 10, 2011 Page 8 of 15
8/12/2010

Process Run Data

Run Name Value UOM Comments

Target

Value

1 Subbituminous Coal Burned 0.2978 1000 Tons/hr Method 29 - Run 

1, and Method 

OTM 27/28 - Run 

1

0

2 Subbituminous Coal Burned 0 1000 Tons/hr 0

3 Subbituminous Coal Burned 0 1000 Tons/hr 0

1 Average Heat Input 5212.4 MMBtu/hr 0 From CEMS

2 Average Heat Input 0 MMBtu/hr 0

3 Average Heat Input 0 MMBtu/hr 0

1 Steam Output 3721.8 1000 lb steam/hr 0

2 Steam Output 0 1000 lb steam/hr 0

3 Steam Output 0 1000 lb steam/hr 0

1 Flue Gas Flow Rate 7E+07 scfh Wet scfh from 

CEMS

0

1 Flue Gas Oxygen Content 2.5 % Excess Oxygen 

Measured at Boiler

0

1 Flue Gas Carbon Dioxide Content 12.3 % CEMS Value at 

Stack Exit

0

1 Flue Gas Sampling Point Temperature 302 Deg F 0

1 Flue Gas Pressure 0.9347 atm 0

1 Standard Pressure 1 atm 0

1 Standard Temperature 68 Deg F 0

1 Unit Gross Electrical Output 485 Mwe 0

1 Unit Net Electric Generation 465 MWh 0

4 Subbituminous Coal Burned 0.2982 1000 Tons/hr Method 29 - Run 

2, and Method 

OTM 27/28 - Run 

2

0

4 Average Heat Input 5137.5 MMBtu/hr 0 From CEMS

4 Steam Output 3720.8 1000 lb steam/hr 0

4 Flue Gas Flow Rate 7E+07 scfh Wet scfh from 

CEMS

0

4 Flue Gas Oxygen Content 2.5 % Excess Oxygen 

Measured at Boiler

0

4 Flue Gas Carbon Dioxide Content 12.2 % CEMS Value at 

Stack Exit

0

4 Flue Gas Sampling Point Temperature 305 Deg F 0

4 Flue Gas Pressure 0.9235 atm 0

Thursday, February 10, 2011 Page 9 of 15
8/12/2010

APCD Run Data

4 Standard Pressure 1 atm 0

4 Standard Temperature 68 Deg F 0

4 Unit Gross Electrical Output 485 Mwe 0

4 Unit Net Electric Generation 465 MWh 0

5 Subbituminous Coal Burned 0.2947 1000 Tons/hr 0 Method 29 - Run 3

5 Average Heat Input 5216.2 MMBtu/hr 0 From CEMS

5 Steam Output 3720.7 1000 lb steam/hr 0

5 Flue Gas Flow Rate 8E+07 scfh Wet scfh from 

CEMS

0

5 Flue Gas Oxygen Content 2.5 % Excess Oxygen 

Measured at Boiler

0

5 Flue Gas Carbon Dioxide Content 11.2 % CEMS Value at 

Stack exit

0

5 Flue Gas Sampling Point Temperature 301 Deg F 0

5 Flue Gas Pressure 0.9104 atm 0

5 Standard Pressure 1 atm 0

5 Standard Temperature 68 Deg F 0

5 Unit Gross Electrical Output 486 Mwe 0

5 Unit Net Electric Generation 465 MWh 0

6 Subbituminous Coal Burned 0.2946 1000 Tons/hr Method OTM 

27/28 - Run 3

0

6 Average Heat Input 5195.8 MMBtu/hr 0 From CEMS

6 Steam Output 3720.4 1000 lb steam/hr 0

6 Flue Gas Flow Rate 8E+07 scfh Wet scfh from 

CEMS

0

6 Flue Gas Oxygen Content 2.5 % Excess Oxygen 

Measured at Boiler

0

6 Flue Gas Carbon Dioxide Content 11.3 % CEMS Value at 

Stack Exit

0

6 Flue Gas Sampling Point Temperature 301 Deg F 0

6 Flue Gas Pressure 0.9103 atm 0

6 Standard Pressure 1 atm 0

6 Standard Temperature 68 Deg F 0

6 Unit Gross Electrical Output 486 Mwe 0

6 Unit Net Electric Generation 465 MWh 0

Run Name Value UOM Comments

Target

Value

1 OVERFIRE AIR 0 0

Thursday, February 10, 2011 Page 10 of 15
8/12/2010

Process Lab Run Data

1 FABRIC FILTER 0 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

1 Fuel Lead Content 0 ppm

1 Fuel Manganese Content 0 ppm

1 Fuel Chlorine Content 0 ppm

1 Fuel Fluorine Content 0 ppm

Thursday, February 10, 2011 Page 11 of 15
8/12/2010

Sampling / Stack Data Results Detail

Location Stack Exit - Method 29 

Average

Run Number 1 2 3

Test Date 4/27/2010 4/28/2010 4/29/2010

Run Start Time 7:30:00 AM 7:00:00 AM 7:00:00 AM

Run Finish Time 1:56:00 PM 4:11:00 PM 1:18:00 PM

Net Traversing Points 13 12 12

Net Run Time, minutes 360 360 360

Nozzle Diameter, inches 0.185 0.185 0.185 0.185

Pitot Tube Coefficient 0.84 0.84 0.84 0.840

Dry Gas Meter Calibration Factor 0.9954 0.9954 0.9954 0.995

Barometric Pressure, inches of Mercury 28.46 28.26 27.83 28.183

Average Orifice Meter Differential, inches H2O 0.94 0.96 1.00 0.967

Dry Gas Meter Volume Sampled, cubic feet 200.010 201.890 205.400 202.433

Average Dry Gas Meter Temperature, °F 70.58 65.42 68.25 68.083

Dry Gas Meter Volume Sampled, dscf 188.912 191.220 190.586 190.239

Total Moisture Liquid collected, g 552.054 519.993 551.052 541.033

Volume of Water Vapor, standard cubic feet 25.99 24.48 25.94 25.470

Moisture Content of Stack Gas, % 12.09 11.35 11.98 11.807

Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000

Dry Mole Fraction 0.8791 0.8865 0.8802 0.882

Carbon Dioxide, % 14.42 14.18 14.01 14.203

Oxygen, % 5.79 5.85 6.17 5.937

Carbon Monoxide & Nitrogen, % 79.79 79.97 79.82 79.860

Fuel Factor 1.05 1.06 1.05

Dry Molecular Weight, lb/lb-Mole 30.54 30.50 30.49 30.510

Wet Molecular weight, lb/lb-Mole 29.02 29.08 28.99 29.030

Flue Gas Static Pressure, inches of H2O -0.57 -0.57 -0.57 -0.570

Absolute Flue Gas Pressure, inches of Mercury 28.42 28.22 27.79 28.143

Average Stack Gas Temperature, °F 295.92 299.58 299.92 298.473

Average Velocity Head, inches of H2O 1.3722455060

4563

1.414371290

75613

1.437744017

6323

1.408

Average Stack Gas Velocity, feet/second 80.54 82.17 83.63 82.113

Stack Cross-Sectional Area, square feet 458.694 458.694 458.694 458.694

Dry Volumetric Flow Rate, dry scfm 1,292,840.0 1,314,383.7 1,307,406.9 1,304,876.8

67

Actual Wet Volumetric Flue Gas Flow Rate, acfm 2,216,592.9 2,261,453.2 2,301,634.8 2,259,893.6

33

Percent Isokinetic of Sampling Rate, % 99.7 99.3 99.5 99.500

Percent Excess Air, % 37.9 38.3 41.4 39.200

F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000

Round Duct Diameter, inches 290 290 290

Rectangular Duct Width, inches 0 0 0

Rectangular Duct Length, inches 0 0 0

Fw 10640 10640 10640 10,640.000

Fc 1840 1840 1840 1,840.000

Thursday, February 10, 2011 Page 12 of 15
8/12/2010

Location Stack Exit - Method 3A CO2

Average

Run Number

Test Date

Run Start Time

Run Finish Time

Carbon Dioxide, % 7:30:00 AM 7:00:00 AM 7:00:00 AM

Oxygen, %

Fuel Factor 14.4214 14.1792 14.0076

Dry Volumetric Flow Rate, dry scfm Stack Exit Stack Exit Stack Exit

F-Factor, dscfm/MMBtu @ %O2 0.06 0.23 0.23 0.173

Moisture, % 1 2 3 2.000

Analyzer Make 13.21 12.15 12.43 12.597

Analyzer Model otm 27/28 

RUN 1

OTM 27/28 

Run 1

otm 27/28 

Run 3

Analyzer Serial Number 14.42 14.18 14.01 14.203

Operating Range 3A 3A M3A

Operating Units 5.79 5.85 6.17

No. Readings/Avg. 3A 3A M3A

Calibration Set 410iANPDAA410iANPDAA410iANPDAA

Calibration Pre Zero Cylinder ID 70921374 70921374 70921374

Calibration Pre Zero Cylinder Instrument Response 20 20 20 20.000

Calibration Pre Zero Cylinder Bias % % %

Calibration Pre Zero Cylinder Drift 10 10 10 10.000

Calibration Pre High Cylinder ID 1 1 1

Calibration Pre High Cylinder Instrument Response 0 0 0 0.000

Calibration Pre High Cylinder Bias Nitrogen Nitrogen Nitrogen

Calibration Pre High Cylinder Drift 0.02 0.02 0.03 0.023

Calibration Post Zero Cylinder ID 0.12 0 0.06

Calibration Post Zero Cylinder Instrument Response 0 0 0 0.000

Calibration Post Zero Cylinder Bias CC-79947-

CO2

CC-79947-

CO2

CC-79947-

CO2

Calibration Post Zero Cylinder Drift 8.56 8.57 8.53 8.553

Calibration Post High Cylinder ID 0 0.06 -0.17

Calibration Post High Cylinder Instrument Response 0 0 0 0.000

Calibration Post High Cylinder Bias Nitrogen Nitrogen Nitrogen

Calibration Post High Cylinder Drift 0.02 0.03 0.03 0.027

Cavg 0 0.06 0.06 0.040

Cavg Units 0.12 0.06 1.55

Cgas CC-79947-

CO2

CC-79947-

CO2

CC-79947-

CO2

Cgas Units 8.57 8.53 8.49

Fuel Type 0.06 -0.17 -0.4

Fw 12.529 12.445 12.196 12.390

Fc pptvw %vw %vw

Cgasw pptvd %vd %vd

Cgasw Units Override Override Override

Thursday, February 10, 2011 Page 13 of 15
8/12/2010

Location Stack Exit - Method 3A O2

Average

Run Number 1 2 3

Test Date 4/27/2010 4/28/2010 4/29/2010

Run Start Time 7:30:00 AM 7:00:00 AM 7:00:00 AM

Run Finish Time 2:01:00 PM 4:17:00 PM 2:04:00 PM

Carbon Dioxide, % 14.42 14.18 14.01 14.203

Oxygen, % 5.79 5.85 6.17 5.937

Fuel Factor 1.05 1.06 1.05

Dry Volumetric Flow Rate, dry scfm 0 0 0.000

F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000

Moisture, % 13.21 12.15 12.43 12.597

Analyzer Make Servomex Servomex Servomex

Analyzer Model 1400 1400 1400 1,400.000

Analyzer Serial Number 1420/B224 1420/392 1420/392

Operating Range 25 25 25 25.000

Operating Units % % %

No. Readings/Avg. 10 10 10 10.000

Calibration Set 10 10 10 10.000

Calibration Pre Zero Cylinder ID Nitrogen Nitrogen Nitrogen

Calibration Pre Zero Cylinder Instrument Response 0.07 0.04 0.05 0.053

Calibration Pre Zero Cylinder Bias 0.29 -0.14 -0.1 0.017

Calibration Pre Zero Cylinder Drift 0 0 0 0.000

Calibration Pre High Cylinder ID CC-79947-O2 CC-79947-

O2

CC-79947-O2

Calibration Pre High Cylinder Instrument Response 11.04 11.02 10.85 10.970

Calibration Pre High Cylinder Bias 0 -0.1 -0.91 -0.337

Calibration Pre High Cylinder Drift 0 0 0 0.000

Calibration Post Zero Cylinder ID Nitrogen Nitrogen Nitrogen

Calibration Post Zero Cylinder Instrument Response 0.04 0.05 0.05 0.047

Calibration Post Zero Cylinder Bias -0.14 -0.1 -0.1 -0.113

Calibration Post Zero Cylinder Drift 0.43 0.04 0 0.157

Calibration Post High Cylinder ID CC-79947-O2 CC-79947-

O2

CC-79947-O2

Calibration Post High Cylinder Instrument Response 11.02 10.85 10.95 10.940

Calibration Post High Cylinder Bias -0.1 -0.91 -0.43 -0.480

Calibration Post High Cylinder Drift 0.1 0.81 0.48 0.463

Cavg 5.838 5.843 6.139 5.940

Cavg Units %vd %vd %vd

Cgas 5.7909 5.8512 6.1676 5.937

Cgas Units %vd %vd %vd

Fuel Type Override Override Override

Fw 10640 10640 10640 10,640.000

Fc 1800 1800 1800 1,800.000

Cgasw 0 0 0 0.000

Cgasw Units %vw

Thursday, February 10, 2011 Page 14 of 15
8/12/2010

Location Stack Exit - OTM - 27/28

Average

Run Number

Test Date

Run Start Time

Run Finish Time

Net Traversing Points

Net Run Time, minutes

Nozzle Diameter, inches

Pitot Tube Coefficient

Dry Gas Meter Calibration Factor

Barometric Pressure, inches of Mercury

Average Orifice Meter Differential, inches H2O

Dry Gas Meter Volume Sampled, cubic feet

Average Dry Gas Meter Temperature, °F

Dry Gas Meter Volume Sampled, dscf

Total Moisture Liquid collected, g

Volume of Water Vapor, standard cubic feet

Moisture Content of Stack Gas, %

Moisture Saturation at Stack Gas Temperature, %

Dry Mole Fraction

Carbon Dioxide, %

Oxygen, %

Carbon Monoxide & Nitrogen, %

Fuel Factor

Dry Molecular Weight, lb/lb-Mole

Wet Molecular weight, lb/lb-Mole

Flue Gas Static Pressure, inches of H2O

Absolute Flue Gas Pressure, inches of Mercury

Average Stack Gas Temperature, °F

Average Velocity Head, inches of H2O

Average Stack Gas Velocity, feet/second

Stack Cross-Sectional Area, square feet

Dry Volumetric Flow Rate, dry scfm

Actual Wet Volumetric Flue Gas Flow Rate, acfm

Percent Isokinetic of Sampling Rate, %

Percent Excess Air, %

F-Factor, dscfm/MMBtu @ %O2

Round Duct Diameter, inches

Rectangular Duct Width, inches

Rectangular Duct Length, inches

Fw

Fc

Thursday, February 10, 2011 Page 15 of 15