Name: Mr. Jason White

Title: Environmental Compliance Specialist, 

Company: Minnesota Power

Sign Date:

Name: Mr. Anthony Sakellariou

Title: Lead Field Engineer

Company: GE International, Inc.

Sign Date: 7/30/2010

Permitted Facility Representative / Date Testing Company Representative / Date

Minnesota Power

Final Test Report 

for

/ /

Based on information and belief formed 

after reasonable inquiry, I certify that the 

statements and information in this test 

report are true, accurate, and complete.

I have reviewed all testing details and 

results in this test report and hereby 

certify that the test report is authentic 

and accurate.

Tuesday, February 08, 2011 Page 1 of 12
Minnesota Power

Facility Information:

Minnesota Power - Taconite Harbor Energy 

8124 Highway 61 West

Schroeder, Cook Co MN 55613

Contact: Mr. Jason White

Phone: 218-722-5642

Fax: 218-722-5642

Email: jwhite@mnpower.com

Testing Company:

GE International, Inc.

888 Industrial Drive

Elmhurst IL 60126

Contact:Mr. Anthony Sakellariou

Phone: 630-530-6689

Fax: 630-530-6630

Email: anthony.sakellariou@ ge.com

Air Permit Number:

03100001-006

Permitted Source ID/Name:

SV002 EU002 Minnesota Power - Taconite Harbor Energy Center

Permitted Maximum Process Rate:

N/A

Max. Normal Operation Process Rate:

913 MMBtu/hr

Target Process Test Rate

N/A

Description of the source (including control equipment). Please see the attachments for source or

 process flow diagram:

Industry/SCC/NAIS 221112

Sampling Location Information:

Test Parameter Information:

AFS #: 2703100001 FRS #: 110006367172

SCC / Description 10100203 External Combustion Boilers - Electric Generation - Bituminous/Subbituminous 

Coal - Cyclone Furnace (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

Unit 2 Stack 120 0 0 0 1044 1380 2 24

Unit 2 Stack 

(A)

120 0 0 0 1044 1380 2 24

Target

Parameter 

Test

Method

Number of

Test Runs

Test Run

Duration

Sample 

Location Points Comments

Unit 2 Stack Total Particulate OTM - 27/28 3 365 0

(A)

Organic Condensible 

Particulate

Unit 2 Stack OTM - 27/28 3 365 0

(A)

Unit 2 Stack Filterable Particulate OTM - 27/28 3 365 0

(A)

Tuesday, February 08, 2011 Page 2 of 12
Minnesota Power

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.

Unit 2 Stack Total PM2.5 OTM - 27/28 3 365 0

(A)

Unit 2 Stack Filterable PM2.5 OTM - 27/28 3 365 0

(A)

Inorganic (Aqueous) 

Condensible Part.

Unit 2 Stack OTM - 27/28 3 365 0

(A)

Unit 2 Stack Co2 Method 3A CO2 3 420 0

(A)

Unit 2 Stack O2 Method 3A O2 3 420 0

(A)

Unit 2 Stack Arsenic Method 29 3 240 0

Unit 2 Stack Selenium Method 29 3 240 0

Unit 2 Stack Nickel Method 29 3 240 0

Unit 2 Stack Mercury Method 29 3 240 0

Unit 2 Stack Manganese Method 29 3 240 0

Unit 2 Stack Antimony Method 29 3 240 0

Unit 2 Stack Cobalt Method 29 3 240 0

Unit 2 Stack Chromium Method 29 3 240 0

Unit 2 Stack Beryllium Method 29 3 240 0

Unit 2 Stack Cadmium Method 29 3 240 0

Unit 2 Stack Lead Method 29 3 240 0

Unit 2 Stack Co2 Method 3A CO2 3 300 0

Unit 2 Stack O2 Method 3A O2 3 300 0

Unit 2 Stack Filterable Particulate Method 5 3 240 0

Tuesday, February 08, 2011 Page 3 of 12
Minnesota Power

Sampling / Stack Data Results Summary

Location Unit 2 Stack - Method 29

Average

Run Number 1 2 3

Test Date 5/17/2010 5/17/2010 5/18/2010

Run Start Time 9:00:00 AM 3:40:00 PM 6:20:00 AM

Run Finish Time 1:32:00 PM 7:53:00 PM 10:40:00 AM

Net Run Time, minutes 240 240 240

Dry Gas Meter Volume Sampled, dscf 119.706 120.278 120.331 120.105

Moisture Content of Stack Gas, % 11.69 11.36 11.44 11.497

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

Carbon Dioxide, % 14.9 14.8 14.7 14.800

Oxygen, % 5.5 5.6 5.7 5.600

Average Stack Gas Temperature, °F 361.83 370.79 357.04 363.220

Dry Volumetric Flow Rate, dry scfm 181,042.3 181,583.4 182,416.5 181,680.733

Actual Wet Volumetric Flue Gas Flow Rate, acfm 327,747.4 331,187.5 326,710.7 328,548.533

Percent Isokinetic of Sampling Rate, % 102.2 102.4 102.0 102.200

F-Factor, dscfm/MMBtu @ %O2 9392 9392 8329 9,037.667

Fw 0 0 0 0.000

Fc 1951 1951 1749 1,883.667

Location Unit 2 Stack - Method 5

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

Tuesday, February 08, 2011 Page 4 of 12
Minnesota Power

Location Unit 2 Stack (A) - 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

Tuesday, February 08, 2011 Page 5 of 12
Minnesota Power

Emissions Summary

Location: Unit 2 Stack - Method 29

Compound: Antimony

Average

RunNumber 1 2 3

Mass_mg 0.004 0.004 0.004 0.004

lb/mmBtuO2 9.39E-07 9.41E-07 8.39E-07 0.000

Compound: Arsenic

Average

RunNumber 1 2 3

Mass_mg 0.004 0.004 0.004 0.004

lb/mmBtuO2 9.39E-07 9.41E-07 8.39E-07 0.000

Compound: Beryllium

Average

RunNumber 1 2 3

Mass_mg 0.00118 0.001 0.001 0.001

lb/mmBtuO2 2.77E-07 2.35E-07 2.10E-07 0.000

Compound: Cadmium

Average

RunNumber 1 2 3

Mass_mg 0.00187 0.001 0.001 0.001

lb/mmBtuO2 4.39E-07 2.35E-07 2.10E-07 0.000

Compound: Chromium

Average

RunNumber 1 2 3

Mass_mg 0.00324 0.003 0.003 0.003

lb/mmBtuO2 7.61E-07 7.05E-07 6.29E-07 0.000

Compound: Cobalt

Average

RunNumber 1 2 3

Mass_mg 0.00165 0.00106 0.00109 0.001

lb/mmBtuO2 3.87E-07 2.49E-07 2.29E-07 0.000

Compound: Lead

Average

RunNumber 1 2 3

Mass_mg 0.01411 0.00501 0.00421 0.008

lb/mmBtuO2 3.31E-06 1.18E-06 8.83E-07 0.000

Compound: Manganese

Average

RunNumber 1 2 3

Mass_mg 0.00717 0.01883 0.01857 0.015

lb/mmBtuO2 1.68E-06 4.43E-06 3.90E-06 0.000

Compound: Mercury

Average

Tuesday, February 08, 2011 Page 6 of 12
Minnesota Power

RunNumber 1 2 3

Mass_mg 0.01059 0.01455 0.01282 0.013

lb/mmBtuO2 2.49E-06 3.42E-06 2.69E-06 0.000

Compound: Nickel

Average

RunNumber 1 2 3

Mass_mg 0.00692 0.005 0.005 0.006

lb/mmBtuO2 1.62E-06 1.18E-06 1.05E-06 0.000

Compound: Selenium

Average

RunNumber 1 2 3

Mass_mg 0.0373 0.0222 0.0238 0.028

lb/mmBtuO2 8.76E-06 5.22E-06 4.99E-06 0.000

Location: Unit 2 Stack - Method 5

Compound: Filterable Particulate

Average

RunNumber 1 2 3

Mass_mg 23.6 28 27 26.200

lb/mmBtuO2 5.54E-03 6.58E-03 5.67E-03 0.006

Location: Unit 2 Stack (A) - OTM - 27/28

Compound: Filterable Particulate

Average

RunNumber 1 2 3

Mass_mg 23 20.5 26 23.167

lb/mmBtuO2 5.19E-03 3.93E-03 5.89E-03 0.005

Compound: Filterable PM2.5

Average

RunNumber 1 2 3

Mass_mg 15.8 19.8 22.5 19.367

lb/mmBtuO2 3.56E-03 3.79E-03 5.10E-03 0.004

Compound: Inorganic (Aqueous) Condensible Pa

Average

RunNumber 1 2 3

Mass_mg 23.94 22.44 27.44 24.607

lb/mmBtuO2 5.40E-03 4.30E-03 6.21E-03 0.005

Compound: Organic Condensible Particulate

Average

RunNumber 1 2 3

Mass_mg 3.16 2.66 3.06 2.960

lb/mmBtuO2 7.13E-04 5.10E-04 6.93E-04 0.001

Compound: Total Particulate

Average

RunNumber 1 2 3

Mass_mg 50.1 45.6 56.5 50.733

lb/mmBtuO2 1.13E-02 8.74E-03 1.28E-02 0.011

Tuesday, February 08, 2011 Page 7 of 12
Minnesota Power

Process Run Data

Compound: Total PM2.5

Average

RunNumber 1 2 3

Mass_mg 42.9 44.9 53 46.933

lb/mmBtuO2 9.68E-03 8.60E-03 1.20E-02 0.010

Tuesday, February 08, 2011 Page 8 of 12
Minnesota Power

Process Run Data

APCD Run Data

Process Lab Run Data

Run Name Value UOM Comments

Target

Value

1 Heat Input 768.1 MMBtu/hr 0 Method 5/29

1 Heat Input 759.07 MMBtu/hr 0 OTM-27/OTM-28

1 Gross Megawatts 71 MW 0 OTM-27/OTM-28

1 Gross Megawatts 70.3 MW 0 Method 5/29

2 Heat Input 748.63 MMBtu/hr 0 Method 5/29

2 Heat Input 769.51 MMBtu/hr 0 OTM-27/OTM-28

2 Gross Megawatts 73.2 MW 0 OTM-27/OTM-28

2 Gross Megawatts 69.3 MW 0 Method 5/29

3 Heat Input 756.47 MMBtu/hr 0 Method 5/29

3 Heat Input 751.18 MMBtu/hr 0 OTM-27/OTM-28

3 Gross Megawatts 72.9 MW 0 OTM-27/OTM-28

3 Gross Megawatts 69.5 MW 0 Method 5/29

1 Coal Firing Rate 0.0338 1000 ton/hr 0 OTM-27/OTM-28

2 Coal Firing Rate 0.0328 1000 ton/hr 0 OTM-27/OTM-28

3 Coal Firing Rate 0.0352 1000 ton/hr 0 OTM-27/OTM-28

1 Coal Firing Rate 0.0338 1000 ton/hr 0 Method 5/29

2 Coal Firing Rate 0.0338 1000 ton/hr 0 Method 5/29

3 Coal Firing Rate 0.0328 1000 ton/hr 0 Method 5/29

Run Name Value UOM Comments

Target

Value

1 ELECTROSTATIC PRECIPITATOR 0 0

1 SELECTIVE NONCATALYTIC REDUCTION 

FOR NOX

0 0

1 MISCELLANEOUS CONTROL DEVICES 0 0

1 MISCELLANEOUS CONTROL DEVICES 0 0

Tuesday, February 08, 2011 Page 9 of 12
Minnesota Power

Sampling / Stack Data Results Detail

Location Unit 2 Stack - Method 29

Average

Run Number 1 2 3

Test Date 5/17/2010 5/17/2010 5/18/2010

Run Start Time 9:00:00 AM 3:40:00 PM 6:20:00 AM

Run Finish Time 1:32:00 PM 7:53:00 PM 10:40:00 AM

Net Traversing Points 48 48 48

Net Run Time, minutes 240 240 240

Nozzle Diameter, inches 0.197 0.197 0.197 0.197

Pitot Tube Coefficient 0.84 0.84 0.84 0.840

Dry Gas Meter Calibration Factor 0.992 0.992 0.992 0.992

Barometric Pressure, inches of Mercury 29.2 29.19 29.26 29.217

Average Orifice Meter Differential, inches H2O 0.92 0.93 0.92 0.923

Dry Gas Meter Volume Sampled, cubic feet 127.345 130.863 127.164 128.457

Average Dry Gas Meter Temperature, °F 85.05 97.27 82.56 88.293

Dry Gas Meter Volume Sampled, dscf 119.706 120.278 120.331 120.105

Total Moisture Liquid collected, g 336.5 327.3 330.1 331.300

Volume of Water Vapor, standard cubic feet 15.84 15.41 15.54 15.597

Moisture Content of Stack Gas, % 11.69 11.36 11.44 11.497

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

Dry Mole Fraction 0.8831 0.8864 0.8856 0.885

Carbon Dioxide, % 14.9 14.8 14.7 14.800

Oxygen, % 5.5 5.6 5.7 5.600

Carbon Monoxide & Nitrogen, % 79.6 79.6 79.6 79.600

Fuel Factor 1.03 1.03 1.03

Dry Molecular Weight, lb/lb-Mole 30.60 30.59 30.58 30.590

Wet Molecular weight, lb/lb-Mole 29.13 29.16 29.14 29.143

Flue Gas Static Pressure, inches of H2O -1 -1 -1 -1.000

Absolute Flue Gas Pressure, inches of Mercury 29.13 29.12 29.19 29.147

Average Stack Gas Temperature, °F 361.83 370.79 357.04 363.220

Average Velocity Head, inches of H2O 0.9686201868

97999

0.979089644

562099

0.970387922

516655

0.973

Average Stack Gas Velocity, feet/second 69.55 70.28 69.33 69.720

Stack Cross-Sectional Area, square feet 78.540 78.540 78.540 78.540

Dry Volumetric Flow Rate, dry scfm 181,042.3 181,583.4 182,416.5 181,680.733

Actual Wet Volumetric Flue Gas Flow Rate, acfm 327,747.4 331,187.5 326,710.7 328,548.533

Percent Isokinetic of Sampling Rate, % 102.2 102.4 102.0 102.200

Percent Excess Air, % 35.5 36.3 37.2 36.333

F-Factor, dscfm/MMBtu @ %O2 9392 9392 8329 9,037.667

Round Duct Diameter, inches 120 120 120

Rectangular Duct Width, inches 0 0 0

Rectangular Duct Length, inches 0 0 0

Fw 0 0 0 0.000

Fc 1951 1951 1749 1,883.667

Tuesday, February 08, 2011 Page 10 of 12
Minnesota Power

Location Unit 2 Stack - Method 5

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

Tuesday, February 08, 2011 Page 11 of 12
Minnesota Power

Location Unit 2 Stack (A) - 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

Tuesday, February 08, 2011 Page 12 of 12