Results of the December 21-22, 2005 

Nitrogen Oxides Engineering Tests on the Furnace 

Line 11 Waste Gas Stack (SV104) and Furnace Line 

6 Hood Exhaust/Waste Gas Stack (SV261) at the 

Northsh ore Mining Facility 

Located in Silver Bay, Minnesota 

MPCA AQD File No. 27A 

MPCA Air Permit No. 07500003-002 

Barr Project No. 23/38-124 MTP 

Prepared for 

Northshore Mining Company 

Silver Bay, Minnesota 

February 2006 

4700 West 77th Street 

Minneapolis, MN 55435 

Phone: (952) 832-2600 

BARR Fax: (952) 832-2601 
Northshore Mining Company 

Silver Bay, Minnesota 

Stack Test Report 

Table of Contents 

Report Certification 1 

Executive Summary 3 

Introduction 4 

Sununary of Results 5 

Process Description 6 

Sampling and Analysis Procedures 7 

Tables 

Figures 

Appendices 

List of Tables 

Table 1 Furnace 11 Waste Gas Stack (SV104) — Reference Method Analyzer Results Summary 

Table 2 Furnace 6 Hood Exhaust/Waste Gas Stack (SV261) — Reference Method Analyzer Results Summary 

Figure 1 

Figure 2 

Figure 3 

Figure 4 

List of Figures 

Test Port Location — Furnace 11 (SV104) 

Traverse Point Locations — Furnace 11 (SV104) 

Test Port Location — Furnace 6 (SV261) 

Traverse Point Locations — Furnace 6 (SV261) 

List of Appendices 

Report Calculations and Nomenclature 

Field Data Sheets 

Instrument Output 

Calibration Data 

Cylinder Gas Certifications 

Process Operating Data 

Stack Test Plan 

Project Participants 

Appendix A 

Appendix B 

Appendix C 

Appendix D 

Appendix E 

Appendix F 

Appendix G 

Appendix H 
Signature: 

Report Certification 

Certification of Sampling Procedures: 

I certify under penalty of law that the sampling procedures were performed in accordance with the approved 

test plan and that the data presented in this test report are, to the best of my knowledge and belief, true, 

accurate, and complete. All exceptions are listed and explained below. 

Signature: 

Pet ossmiller Date 

Sr. Air Quality Technician 

Barr Engineering Co. 

Certification of Analytical Procedures: 

I certify under penalty of law that the analytical procedures were performed in accordance with the 

requirements of the test methods and that the data presented for use in the test report were, to the best of my 

knowledge and belief, true, accurate, and complete. All exceptions are listed and explained below. 

Pete Ros 'ller 

Sr. Air duality Technician 

Barr Engineering Co. 

Z/ 

Date 

Signature: 

Certification of Test Report by Testing Company: 

I certify under penalty of law that this test report and all attachments were prepared under my direction or 

supervision in accordance with a system designed to assure that qualified personnel properly gathered and 

evaluated the test information submitted. Based on my inquiry of the person or persons who performed 

sampling and analysis relating to the performance test, the information submitted in this test report is, to the 

best of my knowledge and belief, true, accurate, and complete. All exceptions are listed and explained 

below. 

Pete Rosiller Date 

Sr. Air Quality Technician 

Barr Engineering Co. 

1 
Certification of Test Report by Owner or Operator of Emission Facility: 

I certify under penult) of law that the in submitted in this test report aecuratel) reflects the 

operating conditions at the emission fad lity during this perl'ormance test and describes the date and nature 

of all operational and maimenanee activities that were performed on the process and control equipment 

during the month prior to the performance test. Based on my inquiry of the person or persons who 

performed the operational and maintenance activities, the in submitted in this test report is. to the 

best of my km»dedge and belief, true. accurate, and complete. All exceptions are listed and explained 

bet ass . 

Signature: 6 

Scott Gischia Date 

Environmental Engineer 

Northshore Mining Company 
Executive Surririr rj 

Barr Engineering Co. performed nitrogen oxides engineering emissions testing on the Furnace 11 Waste Gas Stack 

(SV104) and the Furnace 6 Hood Exhaust/Waste Gas Stack (SV261) at Northshore Mining's Facility in Silver Bay, 

Minnesota. The Furnace 11 Waste Gas stack test was conducted on December 21, 2005. The Furnace 6 Waste 

Gas/Hood Exhaust stack test was conducted on December 22, 2005. Each emission test included the measurement 

of nitrogen oxides (N0x) concentration and mass emission rate. A summary of the test results (three run averages) 

are provided in the following table. 

Test Parameter 

Furnace 11 

Waste Gas 

(SV104) 

Furnace 6 

Waste Gas/Hood Exhaust 

(SV26I) 

Test Date 12/21/05 12/22/05 

Stack Temperature, °F 131 120 

Moisture Content, % vol 15.6 15.3 

Gas Composition, % vol 

Oxygen 

Carbon Dioxide 

17.2 

1.7 

19.1 

0.8 

Volumetric Air Flow Rate ACFM 

SCFM 

DSCFM 

79,100 

69,500 

58,600 

68,700 

60,300 

51,100 

Gaseous Pollutant Concentrations 

NOx, PPMV dry (bias corrected) 101.3 25.8 

Gaseous Pollutant Emission Rates 

NOx, lb/hr 

NOx, lb/MMBTU 

42.6 

0.33 

9.4 

0.14 

Fired Pellet Production Rate, LTPH 251 103 

Furnace Heat Input, MMBtu/hr 129 68 

3 
Introduction 

Barr Engineering Co. performed nitrogen oxides engineering emission tests on the Furnace 11 Waste Gas stack 

(SV104) and the Furnace 6 Waste Gas/Hood Exhaust stack (SV261) at the Northshore Mining Company located in 

Silver Bay, Minnesota. The tests were conducted on December 21-22, 2005. The purpose of testing was to develop 

current nitrogen dioxide emission factors. The pelletizing furnaces were fired on natural gas during the performance 

tests. Each test consisted of three 60-minute test runs. 

A test team led by Pete Rossmiller of Barr Engineering conducted the emission tests. Scott Gischia of Northshore 

Mining provided the coordination of the Barr test team with facility operations. A list of project participants is 

provided in Appendix H. 

Andrew Place, of the Minnesota Pollution Control Agency (MPCA), approved the stack test plan in both a 

conference call and correspondence dated December 15, 2005. A copy of the stack test plan and the MPCA 

approval is located in Appendix G. A representative of the MPCA did not witness the performance tests. 

Test results are presented in the following section. Field data along with supporting documentation is located in the 

appendices. 

4 
Summ:ry of Re Its 

Table 1 summarizes the NOx emissions test results for the Furnace 11 Waste Gas stack (SV104). The nitrogen 

oxides emission rate averaged 42.6 pounds per hour (lb/hr) at an average dry concentration of 101.3 parts per million 

by volume (PPMV). Heat input to Furnace 11 averaged 129 million British thermal units per hour (MMBTU/hr) 

during the test, resulting in a NOx emission factor, as a function of heat input, of 0.33 lb/MMBTU. The fired pellet 

production rate during the Furnace 11 Waste Gas stack test averaged 251 long tons per hour (LTPH), Average 

airflow rates in dry standard cubic feet per minute (DSCFM) for Furnace 11 stacks were 58,600 DSCFM for 

(SV104) and 60,900 DSCFM for (SV105). 

Table 2 summarizes the NOx emissions test results for the Furnace 6 Waste Gas/Hood Exhaust stack (SV261), The 

nitrogen oxides emission rate averaged 9.4 lb/hr at an average dry concentration of 25.8 PPMV. The heat input to 

Furnace 6 averaged 68 MMBTU/hr during the test, resulting in a NOx emission factor, as a function of heat input, of 

0.14 lb/MMBTU. The fired pellet production rate during the Furnace 6 Hood Exhaust stack test averaged 103 

LTPH. Average airflow rates for Furnace 6 stacks were 51,100 DSCFM for (SV261); 50,700 DSCFM for (SV262); 

and 56,000 DSCFM for (SV263). 

5 
Proces Dercription 

Northshore Mining Company pelletizer's are straight-grate furnaces manufactured by Arthur G. McKee Company. 

The furnaces have three major operating zones, referred to as the drying zone, firing zone, and the cooling/recoup 

zone. 

Unfired green balls comprised of iron concentrate and a composite binder of bentonite and organic binder (starch) 

enter the furnace at the drying zone. Furnace 11 utilizes a layer of previously fired pellets, which are placed on the 

grate (hearth layer) and the green balls are then placed on the hearth layer at the furnace entrance. The green balls 

are dried using heat recouped from the furnace. The Line 6 furnace does not incorporate the hearth layer in the pellet 

firing process. The air from the drying zone is directed to the Hood Exhaust. 

The dried pellets enter the firing zone where they are heated sufficiently to initiate an exothermic reaction caused by 

the conversion of magnetite to hematite. Natural gas and oil burners are located in the firing zone to provide heat 

input. The furnaces were fired on natural gas during the stack tests. The waste gas is exhausted from the firing zone. 

The fired pellets enter the cooling/recoup zone, where the exothermic reaction of the pellets is completed. 

The hood exhaust and waste gas is directed to wet wall electrostatic precipitators (WWESP's) for emissions control. 

The Furnace 11 waste gas is split evenly between two WWESP's associated with (SV104 and SV105). The 

combined exhaust of the Furnace 6 waste gas and hood exhaust is divided between three WWESP's associated with 

(SV261, SV262 and SV263). 

Operating parameters of both furnaces recorded during each of their respective test runs are included in Table 1 and 

Table 2. The furnace operating parameters included fuel usage and fired pellet production rate (LTPH). Process 

operating data is provided in Appendix F. 

6 
Lftinpling Lnd Analysis ProceduraL 

Testing was performed from ports meeting EPA Method 1 (40 CFR Part 60, Appendix A) criteria. A 16-point 

traverse was performed at the test port location for each stack. Sample port locations and traverse point detail are 

provided in Figures 1-4. 

Volumetric airflow determinations were performed in accordance with EPA Method 2 (40 CFR Part 60, 

Appendix A) using an S-type pitot tube. An airflow determination was performed in conjunction with each test run 

on the stacks for which performance testing was completed; Line 11 (SV104) and Line 6 (SV261). One airflow 

determination was completed on each of the other stacks, Line 11 (SV105) and Line 6 (SV262 and SV263), during 

Run 1 of the respective tests. An additional airflow determination was performed on Line 6 stack vents (SV262 and 

SV263) during Run 2 of the Line 6 test. 

Stack gas composition and molecular weight was determined by EPA Method 3A (40 CFR Part 60, Appendix A) on 

Line 11 (SV104) and Line 6 (SV261). Stack gas moisture content was determined following EPA Method 4 

(40 CFR Part 60, Appendix A), in conjunction with the EPA Method 7E test. 

Nitrogen oxides concentrations were determined in accordance with EPA Method 7E (40 CFR Part 60, Appendix A) 

on Line 11 (SV104) and Line 6 (SV261). 

7 
Tables 
Averages 

97.5 

17.1 

1.7 

101.3 

17.2 

1.7 

79,100 

69,500 

58,600 

42.6 

251 

129 

0.33 

Northshore Mining Barr Engineering 

Silver Bay, Minnesota February 1, 2006 

Table 1 

Line 11 (SV104) - NOx Emission Inventory Testing 

GASEOUS POLLUTANT TESTING 

December 21, 2005 

Test Date 12/2112005 12/21/2005 12/21/2005 

Run Time 0835-0935 1015-1115 1135-1235 

NOx System Bias Calibration, ppm,dry 

Zero 

Initial 0.1 -0.8 -0.5 

Final -0.8 -0.5 2.7 

Upscale Calibration 

Initial 88,9 86.1 86.2 

Final 86.1 86.2 89.3 

Cal Gas Value 90.5 90.5 90.5 

02 System Bias Calibration, %, dry 

Zero 

Initial 0.0 0.0 0.1 

Final 0.0 0.1 0.1 

Upscale Calibration 

Initial 19.9 19.9 19.9 

Final 19.9 19.9 19.9 

Cal Gas Value 20.0 20.0 20.0 

CO2 System Bias Calibration, %, dry 

Zero 

Initial 0.0 0.0 0.0 

Final 0.0 0.0 0.0 

Upscale Calibration 

Initial 5.0 5,1 5.0 

Final 5.1 5.0 5.0 

Cal Gas Value 5.0 5.0 5.0 

Measured Concentration 

Average NOx ppm, dry 98.5 96.5 97.6 

Average 02 17.1 17.1 17.1 

Average CO2 1.7 1.7 1.7 

NOx ppm, dry Bias Corrected 101.8 101.3 100.8 

02%, dry 17.2 17.2 17.2 

CO2%, dry 1.7 1.7 1.7 

Volumetric Airflow Rate 

ACFM 79,114 79,262 79,041 

SCFM 69,390 69,572 69,513 

DSCFM 58,677 58,503 58,689 

Emission Rates 

NOx, lb/hr 42.8 42.5 42.4 

Process Rates 

Fired pellets 246 253 254 

Heat Input MMBtu/hr 128 129 131 

Emission Factor lb/MM Btu 

NOx I 0.33 I 0.33 I 0.32 
Northshore Mining Barr Engineering 

Silver Bay, Minnesota February 1, 2006 

Table 2 

Line 6 (SV261) - NOx Emission Inventory Testing 

GASEOUS POLLUTANT TESTING 

December 22, 2005 

Test Date 1212212005 12/22/2005 12/22/2005 

Run Time 0800-0900 0917-1017 1035-1135 

NOx System Bias Calibration, ppm,dry 

Zero 

Initial -0.1 -0.4 0.2 

Final -0.4 0.2 -0.1 

Upscale Calibration 

Initial 21.9 22.8 23.5 

Final 22.8 23.5 23.5 

Cal Gas Value 24.8 24.8 24.8 

02 System Bias Calibration, %, dry 

Zero 

Initial 0.1 0.0 0.0 

Final 0.0 0.0 0.1 

Upscale Calibration 

Initial 19.9 20.0 19.9 

Final 20.0 19.9 19.9 

Cal Gas Value 20.0 20.0 20.0 

CO2 System Bias Calibration, %, dry 

Zero 

Initial 0.0 0.0 0.0 

Final 0.0 0.0 0.0 

Upscale Calibration 

Initial 4.9 5.0 5.0 

Final 5.0 5.0 5.0 

Cal Gas Value 5.0 5.0 5.0 

Measured Concentration Averages 

Average NOx ppm, dry 23.7 23.6 24.4 23.9 

Average 02 19.0 19.0 19.0 19.0 

Average CO2 0.8 0.8 0.8 0.8 

NOx ppm, dry Bias Corrected 26.3 25.3 25.8 25.8 

02%, dry 19.1 19.1 19.1 19.1 

CO2%, dry 0.8 0.8 0.8 0.8 

Volumetric Airflow Rate 

ACFM 68,206 69,081 68,688 68,700 

SCFM 60,073 60,677 60,297 60,300 

DSCFM 50,906 51,279 51,150 51,100 

Emission Rates 

NOx, lb/hr 9.6 9.3 9.4 9.4 

Process Rates 

Fired pellets 

Heat Input MMBtu/hr 

102 107 101 103 

67 68 68 68 

Emission Factor lb/MM Btu 

NOx I 0.14 I 0.14 I 0.14 0.14 
Figures 
EPA METHOD 2 

POINT INSERTION 

DEPTH IN 

N to co 

2.29 

7.51 

13.87 

23.09 

48.41 

57.63 

63.99 

69.21 

NO. OF TEST PORTS 2 

PORT LENGTH 5" 

PORT DIAMETER 4" 

NO. OF TRAVERSE POINTS 16 

DUCT DIAMETER 71.5" 

TRAVERSE POINT LOCATION 

NORTHSHORE MINING 

SILVER BAY, MINNESOTA 

#11 PELLITIZER FURNACE WASTE GAS 

1 1O4 WWESP OUTLET (SV1 04, EU1 04, CE1 04) 

NOT TO SCALE FIGURE 2 
71.5" 

[ 

8.0' 

ROOF LINE 

2 TEST PORTS 

@ 90° 

-, 17.0' 

T 

FURNACE 6 

TEST PORT LOCATIONS 

NORTHSHORE MINING COMPANY 

SILVER BAY, MINNESOTA 

FURNACE 6 HOOD EXHAUST - WASTE GAS (SV261) 

NOT TO SCALE FIGURE 3 
EPA METHOD 2 

POINT INSERTION 

DEPTH IN " 

N ) LC) I' s-- CO 

2.29 

7.51 

13.87 

23.09 

48.41 

57.63 

63.99 

69.21 

NO. OF TEST PORTS 2 

PORT LENGTH 0" 

PORT DIAMETER 4" 

NO. OF TRAVERSE POINTS 16 

DUCT DIAMETER 71.5" 

TRAVERSE POINT LOCATIONS 

NORTHSHORE MINING COMPANY 

SILVER BAY, MINNESOTA 

FURNACE 6 HOOD EXHAUST - WASTE GAS (SV261) 

NOT TO SCALE FIGURE 4 
Appendices 
Appendix A 

Report Calculations and Nomenclature 
Northshore Mining Barr Engineering 

Silver Bay, Minnesota February 1, 

Northshore NOx Emission Inventory 

Line 11 Waste Gas Stack (SV104) and *(SV105) 

Determination of Volumetric Airflow Rate, Gas Composition and Moisture Content 

Co. 

2006 

Data Entry Symbol Units Run 1 (SV104) Run.1 t(SV105) Run 2 (SV104) Run 3 (SV104) 

Test Date - - 12/21/2005 ..12/21/2005 . 12/21/2005 12/21/2005 

Test Period - _ 8:40 .9:O0 H: 10:25 11:45 

Number of Sample Ports . - 2 2 2 2 

Number of Traverse Points - _ 16 16 16 16 

Duct Dimensions (diameter for circular duct) D inches 71.5 .7t 5 71.5 71.5 

Duct Dimensions (length for rectangular duct) L inches 

Duct Dimensions (width for rectangular duct) W inches 

Barometric Pressure Pbar in. Hg 29.40 29.40 29.40 29.40 

Stack Static Pressure Pg in. H20 0.32 0.45 0.35 0.31 

Average Stack Temperature, dry bulb Tsf degrees F 130 132 130 129 

Average Stack Temperature, wet bulb Twb degrees F 131 131 131 130 

Pitot Tube Coefficient Cp - 0.840 0,840 0.840 0.840 

Average Square Root of Velocity Head (AP)^0.5 - 0.767 0,798 0.768 0.767 

Orsat Results, Dry Basis 

Carbon Dioxide %CO2 %v/v 11 1.7 1.7 1.7 

Oxygen %02 %v/v 17.1 17,1 17.1 17.1 

Carbon Monoxide + Nitrogen - %v/v 81.2 81.2 81.2 81.2 

Relative Humidity of Source Gas RH % 

Vapor Pressure of H20 at Tsf VP in Hg 

Calculated Data Symbol Units Run 1 (SV104) Run 1 *(SV105)1Run 2 (SV104) Run 3 (SV104) 

Duct Area 

A = (D/24)^2 x PI (Circular Duct) 

A = (Lx W)/144 (Rectangular Duct) 

A sq ft 27.88 27.88 27.88 27.88 

Stack Pressure 

Ps = Pbar + pg/13.6 

Ps in Hg 29.42 29.43 29.43 29.42 

Average Moisture Content of Stack Gas 

MC = ((VP/Pbar)(RH/100) x 100 

MC % Vol 15.4 15.8 15.9 15.6 

Molecular Weight of Stack Gas, dry 

Md = (0.44 x (%CO2))+(0.32 x (%02))+(0,28 x (%N2+%C0)) 

Md lb/lbmol 28.96 28.96 28.96 28.96 

Molecular Weight of Stack Gas, wet 

Ms = Md x (1-(MC/100))+18 x (MC/100) 

Ms lb/lbmol 27.26 27.23 27.21 27.25 

Average Stack Gas Velocity 

Vs = 85.49 x Cp x (4P)^0.5 x ((Ts/Ps x Ms)^.5) 

Vs ft/sec 47.29 49.22 47.38 47.25 

Actual Volumetric Flowrate 

Qa=60xVsxA 

Qa acfm 79,114 82,349 79,262 79,041 

Volumetric Flowrate at Standard Conditions 

Qs = Qa x (528/(Ts+460)) x (Ps/29.92) 

Qs scfm 69,390 72,251 69,572 69,513 

Dry Volumetric Flowrate at Standard Conditions 

Qd = Qa x (1-(MC/100)) x (528/(Ts+460)) x (Ps/29.92) 

Qd dscfm 58,677 60,871 58,503 58,689 
Northshore Mining 

Silver Bay, Minnesota 

Northshore NOx Emission Inventory 

Line 6 Waste Gas St6 

(North Stack) 

Determination of Volumetric Airflow Rate, Gas Composition and Moisture Content 

Co. 

t006 

Data Entry Symbol Units Run 1 (SV261) Run 2 (SV261) Run 3 (SV261) 

Test Date - - 12/22/2005 12/22/2005 12/2212005 

Test Period - 8:10 9:25 10:45 

Number of Sample Ports - 2 2 2 

Number of Traverse Points - - 8 8 8 

Duct Dimensions (diameter for circular duct) D inches 71.5 71.5 71.5 

Duct Dimensions (length for rectangular duct) L inches 

Duct Dimensions (width for rectangular duct) W inches 

Barometric Pressure Pbar in. Hg 28.85 28.85 28.85 

Stack Static Pressure Pg in. H20 0.31 0.32 0.29 

Average Stack Temperature, dry bulb Tsf degrees F 119 120 120 

Average Stack Temperature, wet bulb Twb degrees F 118 120 120 

Pitot Tube Coefficient Cp ,_ 0.840 0.840 0.840 

Average Square Root of Velocity Head (AP)^0.5 ,_ 0.662 0,669 0.666 

Orsat Results, Dry Basis 

Carbon Dioxide %CO2 %v/v 0.8 0.8 0.8 

Oxygen %02 %v/v 19.1 19.1 19.1 

Carbon Monoxide + Nitrogen - %v/v 80.1 80.1 80.1 

Relative Humidity of Source Gas RH % 

Vapor Pressure of H20 at Tsf VP in Hg 

- 

Calculated Data Symbol Units 'Run 1 (SV261) Run 2 (SV261) Run 3 (SV261) 

Duct Area 

A = (D/24)^2 x PI (Circular Duct) 

A = (L x W)/144 (Rectangular Duct) 

A sq ft 27.88 27.88 27.88 

Stack Pressure 

Ps = Pbar + Pg/13,6 

Ps in Hg 28.87 28.87 28.87 

Average Moisture Content of Stack Gas 

MC = EPA M-4 Moisture Train 

MC % Vol 15.3 15.5 15.2 

Molecular Weight of Stack Gas, dry 

Md = (0.44 x (%CO2))+(0.32 x (%02))+(0.28 x (%N2+%C0)) 

Md lb/lbmol 28.89 28.89 28.89 

Molecular Weight of Stack Gas, wet 

Ms = Md x (1-(MC/100))+18 x (MC/100) 

Ms lb/Ibmol 27.23 27.20 27.24 

Average Stack Gas Velocity 

Vs = 85.49 x Cp x (AP)^0.5 x ((Ts/Ps x Ms)^.5) 

Vs ft/sec 40.77 41.29 41.06 

Actual Volumetric Flowrate 

Qa = 60 xVs xA 

Qa acfm 68,206 69,081 68,688 

Volumetric Flowrate at Standard Conditions 

Qs = Qa x (528/(Ts+460)) x (Ps/29.92) 

Qs scfm 60,073 60,677 60,297 

Dry Volumetric Flowrate at Standard Conditions 

Qd = Qa x (1-(MC/100)) x (528/(Ts+460)) x (Ps/29.92) 

Qd dscfm 50,906 51,279 51,150 
Northshore Mining Barr Engineering Co. 

Silver Bay, Minnesota February 1, 2006 

Northshore NOx Emission Inventory 

Line 6 Waste Gas Stack (SV262) 

(Middle Stack) 

Determination of Volumetric Airflow Rate, Gas Composition and Moisture Content 

Data Entry Symbol Units Run 1 (SV262) Run 2 (SV262) 

Test Date - - 12/22/2005 12/22/2005 

Test Period - - 8:20 9:45 

Number of Sample Ports - - 2 2 

Number of Traverse Points - - 16 16 

Duct Dimensions (diameter for circular duct) D inches 71.5 71.5 

Duct Dimensions (length for rectangular duct) L inches 

Duct Dimensions (width for rectangular duct) W inches 

Barometric Pressure • Pbar in. Hg 28.85 29.40 

Stack Static Pressure Pg in. H20 0.34 0.34 

Average Stack Temperature, dry bulb Tsf degrees F 121 121 

Average Stack Temperature, wet bulb Twb degrees F 120 121 

Pitot Tube Coefficient Cp - 0.840 0.840 

Average Square Root of Velocity Head (AP)^0.5 - 0.640 0.633 

Orsat Results, Dry Basis 

Carbon Dioxide %CO2 %v/v 0.8 0.8 

Oxygen %02 %v/v 19.1 19.1 

Carbon Monoxide + Nitrogen - %v/v 80.1 80.1 

Relative Humidity of Source Gas RH % 

Vapor Pressure of H20 at Tsf VP in Hg 

Calculated Data Symbol Units Run 1 (SV262) Run 2 (SV262) 

Duct Area 

A = (D/24)^2 x PI (Circular Duct) 

A = (L x W)/144 (Rectangular Duct) 

A sq ft 27.88 27.88 

Stack Pressure 

Ps = Pbar + Pg/13.6 

Ps in Hg 28.88 29.43 

Average Moisture Content of Stack Gas 

MC = ((VP/Pbar)(RH/100) x 100 

MC % Vol 11,9 11.7 

Molecular Weight of Stack Gas, dry 

Md = (0.44 x (%CO2))+(0.32 x (%02))+(0.28 x (%N2+%C0)) 

Md lb/Ibmol 28.89 28.89 

Molecular Weight of Stack Gas, wet 

Ms = Md x (1-(MC/100))+18 x (MC/100) 

Ms lb/Ibmol 27.59 27.62 

Average Stack Gas Velocity 

Vs = 85,49 x Cp x (0) 1'0.5 x ((Ts/Ps x Ms)^.5) 

Vs ft/sec 39.24 38.40 

Actual Volumetric Flowrate 

Qa= 60 xVsxA 

Qa acfm 65,654 64,250 

Volumetric Flowrate at Standard Conditions 

Qs = Qa x (528/(Ts+460)) x (Ps/29.92) 

Qs scfm 57,611 57,433 

Dry Volumetric Flowrate at Standard Conditions 

Qd = Qa x (1-(MC/100)) x (528/(Ts+460)) x (Ps/29.92) 

Qd dscfm 50,750 50,719 
Northshore Mining Barr Engineering Co. 

Silver Bay, Minnesota February 1, 2006 

Northshore NOx Emission Inventory 

Line 6 Waste Gas Stack (SV263) 

(South Stack) 

Determination of Volumetric Airflow Rate, Gas Composition and Moisture Content 

Data Entry Symbol Units Run 1 (SV263) Run 2 (SV263) 

Test Date - _ 12/22/2005 12/22/2005 

Test Period - - 8:35 9:35 

Number of Sample Ports - - 2 2 

Number of Traverse Points - 16 16 

Duct Dimensions (diameter for circular duct) D inches 71.5 71.5 

Duct Dimensions (length for rectangular duct) L inches 

Duct Dimensions (width for rectangular duct) W inches 

Barometric Pressure Pbar in, Hg 28.85 28.85 . 

Stack Static Pressure Pg in. H20 0.41 0.40 

Average Stack Temperature, dry bulb Tsf degrees F 121 121 

Average Stack Temperature, wet bulb Twb degrees F 120 121 

Pitot Tube Coefficient Cp - 0.840 0.840 

Average Square Root of Velocity Head (AP)^0.5 - 0.709 0.703 

Orsat Results, Dry Basis 

Carbon Dioxide %CO2 %v/v 0.8 0.8 

Oxygen %02 %v/v 19.1 19.1 

Carbon Monoxide + Nitrogen - %v/v 80,1 80.1 

Relative Humidity of Source Gas RH % 

Vapor Pressure of H20 at Tsf VP in Hg 

Calculated Data I Symbol Units Run 1 (SV263) Run 2 (SV263) 

Duct Area 

A = (D/24)^2 x PI (Circular Duct) 

A = (Lx W)/144 (Rectangular Duct) 

A sq ft 27.88 27,88 

Stack Pressure 

Ps = Pbar + Pg/13.6 

Ps in Hg 28.88 ' 28.88 

Average Moisture Content of Stack Gas 

MC = ((VP/Pbar)(RH/100) x 100 

MC % Vol 11.9 11.9 

Molecular Weight of Stack Gas, dry 

Md = (0.44 x (%CO2))+(0.32 x (%02))+(0.28 x (%N2+%C0)) 

Md lb/Ibmol 28.89 28.89 

Molecular Weight of Stack Gas, wet 

Ms = Md x (1-(MC/100))+18 x (MC/100) 

Ms lb/Ibmol 27.59 27.59 

Average Stack Gas Velocity 

Vs = 85,49 x Cp x WM.5 x ((Ts/Ps x Ms)^.5) 

Vs ft/sec . 43.43 43.13 

Actual Volumetric Flowrate 

Qa= 60 xVsxA 

Qa acfm 72,653 72,161 

Volumetric Flowrate at Standard Conditions 

Qs = Qa x (528/(Ts+460)) x (Ps/29.92) 

Qs scfm 63,774 63,265 

Dry Volumetric Flowrate at Standard Conditions 

,Qd = Qa x (1-(MC/100)) x (528/(Ts+460)) x (Ps/29.92) 

Qd dscfm 56,179 55,730 
Northshore Mining 

Line 11 Waste Gas Stack 

RESULTS OF STACK MOISTURE DETERMINATIONS 

Line 11 WG Stack (SV 104) 

Test Date. 12/21/05 

RUN 1 (0835-0935) RUN 2 (1015-1115) RUN 

Meter 

Volume 

Vm, fr 

Orifice 

. DH, 

in H2O 

Stack 

Temp. 

(°F) 

lmpinger 

Temp. 

(°F) 

Meter 

Inlet 

(°F) 

Meter 

Outlet 

(°F) 

Meter 

Volume 

Vm, fr 

Orifice 

DH, 

in H2O 

Stack 

Temp. 

(°C) 

Impinger 

Temp. 

(°F) 

Meter 

Inlet 

(°F) 

Meter 

Outlet 

(OF) 

Meter 

Volume 

Vm, fr 

Orifice 

DH, 

in H2O 

Sta

Tem

(°

278.92 324.14 369.27 

282.57 2.0 130 53 69 68 327.84 2.0 130 51 69 69 373.16 2.0 12

286.35 2.0 130 41 70 68 331.62 2.0 129 41 69 69 376.94 2.0 12

290.11 2.0 129 40 72 68 335.42 2.0 130 40 70 69 380.69 2.0 13

293.85 2.0 130 41 74 69 339.16 2.0 130 42 72 69 384.48 2.0 13

297.61 2.0 130 42 76 69 342.87 2.0 130 44 74 69 388.32 2.0 12

301.32 2.0 130 43 77 70 346.61 2.0 130 45 75 69 392.01 2.0 1

305.10 2.0 130 43 78 70 350.34 2.0 129 45 75 69 395.87 2.0 1

308.98 2.0 130 44 79 71 354.05 2.0 130 45 76 69 399.52 2.0 1

312.62 2.0 130 44 79 71 357.81 2.0 130 46 76 69 403.26 2.0 1

316.40 2.0 130 44 80 72 361.55 2.0 130 46 77 69 407.01 2.0 1

320.18 2.0 130 44 80 72 365.29 2.0 130 47 76 70 410.47 2.0 1

323.95 2.0 130 43 80 73 369.01 2.0 130 47 76 70 414.46 2.0 1

Total 

Meter 

Volume 

Vm, ft 

Average 

Orifice 

DH, 

in H20 

Average 

Stack 

Temp. 

(° F) 

Average 

lmpinger 

Temp. 

(°F) 

Average 

Meter 

Temp. 

(°F) 

Total 

Meter 

Volume 

Vnn, ft 5 

Average 

Orifice 

DH, 

in H20 

Average 

Stack 

Temp. 

(° F) 

Average 

lmpinger 

Temp. 

(°F) 

Average 

Meter 

Temp. 

(°F) 

Total 

Meter 

Volume 

Vm, ft 6 

Average 

Orifice 

DH, 

in H20 

Ave

St

Te

(°

45.03 2.0 130 44 73.13 44.87 2.0 130 45 71.46 45.19 2.0 1

Moisture Recovery Data: Moisture Recovery Data: Moistu

lmpinger 1 2 3 Desiccant Total lmpinger 1 2 3 Desiccant Total lmpinger 1 

Final 256 104 0 1067 Final 254 112 0 1077 Final 256 1

Initial 100 100 0 1057 Initial 100 100 0 1067 Initial 100 1

Diff, 156 4 0 10 170 Diff. 154 12 0 10 176 Dill. 156 

Standard Meter Volume 

43.81 

Moisture Content (%v/v) 

15.44 

Standard Meter Volume 

43.79 

Moisture Content (%v/v) 

15.91 

Standard Meter Volum

44.17 

Barometric Pressure (in Hg) 29A0 Barometric Pressure (in Hg) 29A0 Barometric Pressure (in Hg

Meter Coefficient 0.9948 Meter Coefficient 0.9948 Meter Coefficien
Northshore Mining 

Line 6 Waste Gas Stack 

RESULTS OF STACK MOISTURE DETERMINATIONS 

Line 6 WG Stack (SV261) 

Test Date: 12/22105 

RUN 1 

0800-0900 

RUN 2 

0917-1017 

Meter 

Volume 

Vm, ft 

Orifice 

DH, 

in H2O 

Stack 

Temp. 

(°F) 

Impinger 

Temp. 

(°F) 

Meter 

Inlet 

(°F) 

Meter 

Outlet 

(°F) 

Meter 

Volume 

Vm, ft 

Orifice 

DH, 

in H2O 

Stack 

Temp. 

(°C) 

Innpinger 

Temp. 

(°F) 

Meter 

Inlet 

(°F) 

Meter 

Outlet 

(oF) 

Meter 

Volume 

Vm, fr 

Orifice 

DH, 

in H2O 

S

Te

(

414.76 460.18 505.82 

418.47 2.0 - 118 47 64 64 463.97 2.0 118 58 73 70 509.68 2.0 1

422.21 2.0 117 41 64 64 467.75 2.0 118 45 73 70 513.51 2.0 1

425.98 2.0 118 40 66 64 471.46 2.0 117 45 75 70 517.30 2.0 1

429.76 2.0 117 42 68 64 475.23 2.0 117 46 77 71 521.08 2.0 1

433.53 2.0 117 43 70 65 479.01 2.0 117 48 77 71 524.84 2.0 1

437.28 2.0 117 44 71 65 482.80 2.0 117 49 78 71 528.62 2.0 1

441.09 2.0 117 44 72 66 486.57 2.0 117 50 78 71 532.46 2.0 1

444.84 2.0 117 45 73 66 490.31 2.0 117 51 78 72 536.27 2.0 1

448.53 2.0 117 46 74 67 494.10 2.0 117 52 78 72 540.08 2.0 1

452.30 2.0 117 46 75 67 497.91 2.0 117 53 79 72 543.87 2.0 1

456.05 2.0 118 47 75 68 501.68 2.0 117 54 79 72 547.65 2.0 

459.77 2.0 117 47 77 69 505.46 2.0 117 54 79 72 551.44 2.0 

Total 

Meter 

Volume 

Vm, ft j 

Average 

Orifice 

DH, 

in H2O 

Average 

Stack 

Temp. 

('F.) 

Average 

Impinger 

Temp. 

(°F) 

Average 

Meter 

Temp. 

(°F) 

Total 

Meter 

Volume 

Vm, ft 

Average 

Orifice 

DH, 

in H2O 

Average 

Stack 

Temp. 

(°F) 

Average 

lmpinger 

Temp. 

(°F) 

Average 

Meter 

Temp. 

(°F) 

Total 

Meter 

Volume 

Vm, ft'' 

Average 

Orifice 

DH, 

in H20 

Av

S

Te

(

45.01 2.0 117 44 68.25 45.28 2.0 117 50 74.08 45.62 2.0 

Moisture Recovery Data: Moisture Recovery Data: Moist

Impinger 1 2 3 Desiccant Total lmpinger 1 2 3 Desiccant Total Impinger 1 

Final 246 108 2 1064 Final 248 110 o 1074 Final 248 

Initial 100 100 o 1054 Initial 100 100 0 1064 Initial 100 1

Diff. 146 8 2 10 166 Diff. 148 10 0 10 168 Diff. 148 

Standard Meter Volume 

43.37 

Moisture Content (%v/v) 

15.26 

Standard Meter Volume 

43.16 

Moisture Content (%v/v) 

15.49 

Standard Meter Volum

43.42 

Barometric Pressure (in Hg) 28.85 Barometric Pressure (in Hg) 28.85 Barometric Pressure (in H

Meter Coefficient 0.9948 Meter Coefficient 0.9948 Meter Coefficie
Appendix B 

Field Data Sheets 
BARR 

ImIllmsnong 

Project s /11 

Sample Location frIx h 65 

Date and. F 

Operators LYTK 

Duct Dimensions 

Port Length 2C 

Pitot Tube No. 17- Cp 

Manometer ID p) c1 H 

Digital Therm ID D 

inches 

inches 

Bar. ID ty,y1c 

T.C. ID 

EPA METHOD 2 

FIELD DATA SHEET , 

• 

Run 1 Run 2 Run 3 Run 4 

Bar Press (In Hg) 2-41.5f '1.1. Y 24. y 29,v 

Stat. Press (In H20) 0.3t (.), 

/ 3 /,‘. 

6.3 

1 36,4 j3 2.. Temp - Dry Bulb 2F 13 2- 

Temp-Wet Bulb 9.F / V /3/..1 I 30.0 ii 1 

Moist Content - % /61 g /6: /(1-.. 41 t6r5 

02 % i 1, I / 7-il 1?-4 )7,1 

Time of Meas. 0 S4c' 1 0 ZS MS— D960 

Pitot Leak Check Positive: Z.) if-- Negative: O 

zAv 

Traverse Point Information Cyclonic 

Flow 

Z9 

Velocity Head - Inches H20 Stack Temperature - 2 F 

Point 

Number 

Inches From: Run 1 

AP 

Run 2 

AP 

Run 3 

AP 

Run 4 

AP 

Run 1 

Temp. 

Run 2 

Temp. 

Run 3 

Temp. 

Run 4 

Wall Port Temp. 

PT — I 22 6. cy 0,3 2_ b.2..v b..2.,3 t.. ,-/y . 

Ii.3L 0..ii 0..s' , o..1C 

3 i3.0 ics.12- t.€4,5 C-s— 0.65- ., Ssk 

4' 2.09 23,351 k,(s,‘ ..,, (..t. t.iz b•1 0 

3— 115104 52;(0\n& • t-.10(. 6 

s-3:63 (.1.i5q D. (6s— t.,LIA 6. (I c,. 

7. 0,cli ( 6 - -2-`( c>.bc olo, °. 0 L. sr 

% (Az( 71-‘1L 6.3(6 6.SY "' 91 0. 3ct 

6- t)33. o.ly , 0:-/ti b, Liy • 

2 6 •/S.— 0-L1. 0 .(31 

3 C.1:3- 1 D,Let' t',C45" t...(..1 

ce o‘C (‘ .k..6.cis , iN.LI. b , TY 

C ' D (3,3 O,LY 

-a- 0. 5:5- b3 

(,I 0,51 0.Sic 0,9y 

.... 

• 

Run 1 Run 2 Run 3 Run 4 

Stack Pres. - In Hg t5„qz, zy. y2 Efflia 

Duct Area - S Ft. MU 21-.. r-k WEI 24, gcrMole Wei ht - Md 245% 5* 

-3 .4' 

primmyywrimmr. Z 5-", 5- ‘• 

MaglillagnIM emingrancrings 

IMMIKETIMINIE 

IMMITIMI 

6. 

Mole Wei ht - Ms A, . Tem . - 9F 

Average N.FAITi 

Gas Vel - Pt/Sec 

ACFM n MI . SCFM 0 ( i 57Zraggi -7. ? 251 

DSCFM 51c G 7 rini cia,g-5. (..,57- I 

Schematic of Duct Cross-Section 
Moisture Recovery Data: 

Impinger 1 2 3 4 

Final wt., g 251,, i CW o 

Initial wt., g jo so i czt; C Aff

Difference is-ii,.. Y 

Integrated Gas Sampling Data: 

Box No. 

Bag No. 

Bag Vol. 

Leak Rate, cc/min 

02 Reading 

02 Analyzer No. 

at 15 in Hg 

EPA METHOD 4 

BARR FIELD DATA SHEET 

Project 4V-30,1, S\"1.- A/1) CM ,cSM P Pitot No. Op ' Samp

, ,--- 

Sample Location t_;.,,. 0 1 b.) (..,- Ski ioti Meter y 011 'tq Bar. Press. 2c1, Ya, in Hg 

Date i /N0'3 ,- Test i Run i Orifice AI-I @ I , Wc., 5- Post

Pre

Operators b .)-K. Eff. Probe Length ft Liner Type:0 Glass 0 S.S. 0 Other 

Sample 

Point 

Sample 

Time 

AT 

Meter 

Volume 

Vm, liters 

Meter 

@ H 

Iv. H20 

Sample 

Vacuum, 

in Hg 

Stack 

Temp. 

Ts, °F 

Sample Train Temperatures, °F 

Probe Filter. Impinger 

Outlet 

Mete

Inlet 

RON. 1.101 ( O SS3r ) (27'11 ) 1,4 "I" _.....: 1.1 

- Pose 

A- C, ...S" -.zcl.57-- A.;' Z , c' I • 1 130 "g5,-;', 7. s--:) . .5- 3 (..c:, `Y 

5- 31 3.1% I .. )36 2ç. 2. S'z tit 

51 / "-- J, .1 I ?ci 2 r., 7 rs, vo 3Z 

3 Z. • '.-IPSS-- 31=1 I, <3 i 3 e ..'z li? -z.ft4 V/ Y. 

Z 2N' 1.41, 61 5,-,N, t , c. 1 1 Z .5- ..) i f-a 9'2 

'2._ 1.94 ,. ,;, i 3 

- G c 3t..-c- J .:. S .18 /., )3. ZS'.-1 Z s0 V3 1- f? 

c tt, 36V , el s‘ 543 0.. 13 .- Zs- ...; z .-ri ciV 31 

Y I"— 1111-,L2.. , I..) i 1.3 'Z. -r,) 

3:14 U. ----' )1 J 2 To 7 r..) 7. >- sp 

z 5.c 3*-4- 0`4, -3,1'1, 0,.D 1 -z,3 -2. r‘._., 7.'11 YY 

3V•el r 1,31. 1, e 1 33 25%) 2 5- .. 1'3 

• Ø=Cy3S- Vm= 1/5"..0 sFr= a ,. Ing, fill 'n= i 3. .4-,' Nil PS MINVOININ ' 1 ' c. ''' 'INEMI
Box No. 

Bag No. 

Bag Vol. 

Leak Rate, cc/min at 15 in Hg 

02 Reading 

02 Analyzer No. 

BARR 

7 

Project 4/ .911 ,A.A_ (11:,-;..1 s CM -5-SM P_ Pitot No. Op Sample 

Sample Location L;vr, 1( tt.31,- -S -1-,k iv41, Meter y 0, 51YS Bar. Press. 2 9 ,Y in,Hg Prete

Date 12. - z 1-os- Test ( Run Z... Orifice AN @ helY t r- Postte

Operators 03-1c/ Eff. Probe Length ft Liner Type:El Glass El S.S. 0 Other 

Sample 

Point 

Sample 

Time 

AT 

Meter 

Volume 

Vm, liters 

Meter 

@ H 

Iv. H20 

Sample . 

Vacuum, 

in Hg 

Stack 

Temp. 

Ts, °F 

Sample Train Temperatures, °F 

Probe Filter lmpinger 

Outlet 

Meter 

Inlet 

' totl ( K, 15- ) ( 32`t J`f ) t, ¶ i14]...:,-[) . , 111 t , ,r111 ' ' I MIL ...1:... 1 

- 5'• .3z18- Y 3AD . 7. r:-., 1.a. 1 .3c. Z..s-c. zs 0 sl 6 1 

3S1.(11. A 1.n. il 61 7, C,-> Z )..---.3 eit 6 9 

Y I $' 335-.1 7.. 3.F, I , ;:, 13o 2.5. ts'i 

3 z- 334. ti, 3.14 i z. il,-1 2- " z re V Z.. '.•. Z. 

Z 2 ,-- 542-131- 311 i -‘3 is,.. 25-...) 

t 3 ---..., 341.i.-1 /11 1 . 1.3.. z r. rz. .7 ,e, 

3,i t( 1.43 Y. s i'2 2co IS I Vr 1 S- 

c y ,. 35%).t. r 3,70 I ,... 13 "2_c.> 1.. V1 v 5*- q• IL., 

2.c. 2. Yti 96 31, 

3 .5." NI. s .41 1. .-.. 13•:s 7- 5" '. . z i' .3 q G ?- 7- 

Z. c5- 3Gc.z.ei 3.11 ;,,t, )30 Z s-.- 7.„ kic‘ I I- 

, IA.° 1 . .1z- + •i . 4 • 130 

Vnn=q1/ Vr Ail= 2.,. It 91 !1 i'lllik:], ,, rS= III „ CI- T I , ,-.11,1i 

EPA METHOD 4 

FIELD DATA SHEET 

Moisture Recover Data: 

Impinger 1 2 3 4 

Final wt., g t5'4 117— 

Initial wt., g )01 / 0 ;) 0 

Difference I s 4 i -7.- o 

Integrated Gas Sampling Data: 
Moisture Recovery Data: 

Imping4 . . '1 2 3 4 

Final wt., g 15"L it 1:r. 0 

Initial wt., g /N: i ‘.0 P 4> A 

Difference Is‘,.. %, k. 

EPA METHOD 4 

BARR FIELD DATA SHEET 

Project sli (in .1; ,) CM S- SM P Pitot No. 

Sample Location C.N .c. It 44-41. Meter y b‘clIta Bar. Press. 

Date fajzti.r- Test i Run 3 Orifice AH @ /, 

Operators 1))t._ Eff. Probe Length ft Liner Type:0 Glass 0 S.S. 0 Other 

Op Sample 

in Hg Pret

Postt

Stack Sample Train Temperatures, °F 

Temp. 

Ts, °F 

Sample 

Vacuum, 

in Hg 

Meter 

@ H 

Iv. H20 

Meter 

Volume 

Vm, liters 

(36c111% ) 

Sample 

Time 

( 11 3 r ) 

Sample 

Point Impinger 

Outlet 

Filter Mete

Inlet 

Probe 

g 3.4§I 2.z.1 5 Z_ -43-1(43 I ,e4 ) 2. S‘I. 

39 6.9 Y a.T4 i24' Z 9' 3 

3$t) 13Q, S-z yi7 , V1 al( Z 32 

ti 3%* L/Y 3.,1q ‘i 3 

3A lvt z. 5z- S.;) 3.`6Y 

12.,14 z "9- 

3 JO 41 

3 r 1 ti5" .%.1 130 Zr4 V 

110 5" 12 9 7 c y `7( 

tios .3.4y 13% z Y Y 

2,4 C ) z 2 Ss Z. 91 

rd 

YI0 2;4'1 12.9 2. S'Ll , 11" 

t1/4. 41‘ 341-1- 2 

4, IMP ,SIT= •Z,: , .1 ,, = '*H'illiltlii'ii'IP ._rf,';',4191-Ill I'. .1,4 t ....., „, ri 411.1.E., 

Integrated Gas Sampling Data: 

Leak Rate, cc/min 

02 Reading 

02 Analyzer No. 

Box No. 

Bag No. 

Bag Vol. 

at 15 in Hg 
1-3Y. T-11 

I eak C Positive: b/C- Negative: 0 k. 

Bar Press (In Hg) ZS.(61 

Stat. Press (In H20) 

Tem - D Bulb 2F 

Temp - Wet Bulb 2F 

Moist Content - % 

02 % 

Time of Meas. 

t 

Traverse Point Information Cyclonic 

L2 

Flow 

Velocity Head - Inches H20 Stack Temperature - 2F 

Point 

Number 

Inches From: Run 1 

AP 

Run 2 

AP 

Run 3 

AP 

Run I 

AP 

Run 1 

Temp. 

Run 2 

Temp. 

Runt 

Temp. 

03z 

Run 4 

Wall Port Temp. 

Z 7-1 4 031 COZ b.3 1 6.3.- 0.3z b,21. 

7_ Y 1 o.to t.ki. cl.Liz O, 0, -zei 0,31 

S 13.s33 3 0.y? O.Y% 1/4%.5-4 bt e“ cl.51 031- t.) .ciLi 210.1 A , s-3 0. cz_ $3, S 1_ 0, if 7- c(( 

"t15 0 ‘ 6° 0 .Cfr's k. Cu 

G ' s33-.; 0 0,41 G. 5 7- 6`9.1 t'4'1. 6' get a.95- b'Cl 

Of a . irl tf., Vt„, 0, VI O, VS 

C1:21 -5— c).Y/ 1.t.3i b. 3% 0-31- 6 , 0 t 3-1. 0,v,4. 

6,11 6.17- ID. 3( 0,2.9 b8 2 5,71 6,VI 

0.3y b,, go , tic, 6 , 3 s- 6.rf 0 :53 e. V4 

3 . -- 0.tpi o At kl, '17 0 . (15- °,5Y-- 0,Efe/ 1)43 

Y t, •5- 1 0. S-1_ 0..sez 04- ir DA - (. 0,y(r, 

r “'tt e., 5-3 0. c3 0 Vi- b.C3 . 0.91 04. t . 

c et. •ki 1 0 . IN o. yid zoti... u,(,z. 0 . ys- 

? o ‘ air 0. V3 oi Yy 0 ,95- 6,S,f. o.y. 

c5- 0.3i 0.3ck (3,3 , o!((a, c›13 0, v 1 

CI 

,.., .c rf. 

- •••7 — 3 

I 

BARR 

Project i,sv S 

Sample Location le. 

Date 121 41- 5- Operators 1PIL 

Duct Dimensions 

Port Length 

Pitot Tube No. 

Manometer ID 

Digital Therm ID 

inches 

0 inches 

Cp S'■1 

14 Bar. ID 

T.C. ID 

EPA METHOD 2 

FIELD DATA SHEET -ELI Vct, 

L.l 2-48- ze-1 

- Run 1 

7.4.2 3 1.1"-- 2(02- Zer -1(cg. 

Schematic of Duct Cross-Section 

Run 1 Run 2 Run 3 Run 4 

Stack Pres. - In Hg 

Duct Area - Sq Ft. 

Mole Weight - Md 

Mole Weight - Ms 

Avg. Ternp. - 2F 

Average \TAT 

Gas Vel - Ot/Sec 

ACFM 

SCPIVI 

DSCFM 
EPA METHOD 4 

BARR ' FIELD DATA SHEET 

Project 4.), v A 3 11,./N /11: "1:-'1 ( cm .S- SM P Z Pitot No. I' Cp O. Y Sam

Sample Location 1.:.1c.. (c, 1.06-5 Meter y (:), q 9 ‘1% Bar. Press. 2`%-'53r in Hg Pret

Date iLiztla-s—Test 2_. Run I Orifice 6,H @ 1. `N Postt

Operators t "i• 1r Eff. Probe Length ft Liner Type:0 Glass IXS.S. 0 Other 

Sample 

Point 

Sample 

Time • 

AT 

Meter 

Volume 

Vm, liters 

Meter 

@ H 

Iv. H20 

Sample 

Vacuum, 

in Hg 

Stack Sample Train Temperature, °F 

Temp. 

Ts, °F 

Probe Filter lmpinger 

Outlet 

Mete

Inlet 

IV' it ( "010 0 ) ( 145/.1-( ) '4,11-,:xicl!ii4,11MN,,to-):,iiit, tr . '';';',Iiiiiii.4 I '' ,.iltai; 

ellg. 9 4 V) Z. 0 1,c, 2.5- //2 2.5-.) Z7> Y7 

c , 3 yz z . t 1 S.141 1. .. 1i1 25-a. z 5 ' Y/ Co Y 

2 S 

3 2 1 V2 ,1,1A. Vis 1.,‘ 1); z )-3 15'1 V Z 

t/33, 53 3, 1.4 ),t; 1)4 'z ga Z5 4/3 '1,-.z 

I 3 s• Y14 , 'z.`76 S.35. i.. I 11- Z5 z Sz yy 9- I 

ir VIII ,01 1,c41 'IA 1/1 Z la °Z r I 

'444. ekt 3:+s- 0 

4-.3 3,b1 1..o it r 1.- Z1. 2. S... Cit let 4 Y 

1151,3o 14-1- 1_ a • 11 1- 1 5•Q 2. S tit. 3 5- 

z_ -fr- /S-6.-1- 3:4T 

I 6 0 V591-4- 3- 4i- -, 1 ‘, 0 / t 4 • 

, . 

g= ocio vm=y5..i SF= '7% ,6 [ ,,Irwlir" . = 1, lii 1 

Moisture Recover Data: 

Impinger 1 2 3 4 

Final wt., g 246 104. 7_ 

Initial wt., g (Ns '0 1 ,34 r) /Ph' 

,Difference 

Integrated Gas Sampling Data: 

Box No. Leak Rate, cc/min 

Bag No. 02 Reading 

Bag Vol. 02 Analyzer No. 

at 15 in Hg 
EPA METHOD 4 

Box No. 

Bag No. 

Bag Vol. 

Leak Rate, ccimin at 15 in Hg 

02 Reading 

02 Analyzer No. 

E3ARR 

Project A),4.,c1),,,.. /14. cm 5—sm P - Pitot No. )1- Op 0. taI Samp

Sample Location I.Q6,5 Meter y t3.9'-\1/41i Bar. Press. 2 &WC- in Hg Pret

Date 12-'2.1 - r Test Run -2- Orifice AH @ L. ti Postt

Operators ,rp, tc,„ • Eff. Probe Length ft Liner Type:0 Glass S.S. 0 Other 

Sample 

Point 

Sample 

Time 

AT 

Meter 

Volume 

Vm, liters 

Meter 

@ H 

Iv. H20 

Sample 

Vacuum, 

in Hg 

Stack Sample Train Temperatures, °F 

Temp. 

Ts, °F 

Probe Filter Impinger 

Outlet 

Mete

Inlet 

' Mk ( z1ri- ) ( qt2t , is) _....,„ ,...„. 4 N :3' g 

' A-. c 4631'1- z. , 31q 1.3 lig 253 2 cs., ss 3 1 

- Li.) 1 Vis 2.5" z y1 Y c 4 3 

V , s- 91P1L, 3.11 

5 2.... ylf.z. 5 :3.11- /.., rn- 1 3... z 9 Ylv T.71- 

(14-q,c• 1 3.3a. 1.. 1 /I 7. 1-4 z r 1 Y $ 3 3- 

( 91010 3:3'1 I. ill13- L 3c- nb , s1 1,3 1-: 1.a, 1 II-. -zs-z• -z._•?, 9 ■S' 7 w 

Y. tric3,3 I 3 ,3f 1.5"' )0- 2$ 2 yl Yi I V 

t-f Yr Y cr1.1 6 3. 3 1 t, g-- • 1)1- Zs. an g 2_ 7 

3 5-, 91111 3...R.1 1,5— III- • s 3. "2- -15 5 3 1 i 

1. s-s- .reli:taS S-11 - 111- 2 s-..v Z50 S y 4 1 

3oSN1. 3.1 k< tt) 1- 5— 111- 1SL "ZS' I CY • '3- i 

• 

., 

_ ,i '" •R a= nil, Vm.--/9.1i Aff= -2,:o I I HJ,:, .„,,i; = , 

FIELD DATA SHEET 

Moisture Recover Data: 

lmpinger 1 2 3 4 

Final wt., g 

Initial wt., g ( ■3 11/4)c, c› 41 P\ 

Difference j (7/5 i •5 .1 ,., 

Integrated Gas Sampling Data: 
EPA METHOD 4 

E3ARR 1.■•■ 

Project ,A):41, s /1/1-1:- A `5, CM 5— SM P 2, Pitat No. 11- 

_ Op t Sample 

Sample Location LS Meter y (len 4 46 Bar. Press., 2.'S in Hg Pre

Date 1 2.12.7.16-F Test 2- Run 3 Orifice AH Post

Operators VTA(..._ Eff. Probe Length ft Liner Type: El Glass IV-S.S. El Other 

Sample 

Point 

. 

Sample 

Time 

AT 

. Meter 

Volume 

Vm, liters 

Meter 

@ H 

. Iv. H20 

Sample 

Vacuum, 

in Hg 

Stack Sample Train Temperatures, °F 

Temp. 

Ts, °F 

Probe . Filter - lmpinger 

Outlet 

Met

Inle

( S-) ( .S(' 5. 511 ill ' ill?. .... l'' ' 77 

A -G 5- scot CI 36 2„ Lc • /1 1- Zi--0 2 s SI5- • is.z., si 'Is i 3._.s 1 5- i i 1- 2 5'... Z r ( V 9 7 3 

5' I 3, --Sz 1;74 1 I ‘ 1- ) C1- / re. z s' 1 '4 1-

3 2-3 $21..zt 3.4% I .. 5-- » ,a 25- 0 tr, 

7, 2 r rtY.ri 3.36 — i, r ,/ v ..z.s-4 1.5-4 ._. 3 g 

3c rzs. Gz 5..19 . , ( I. )- 1 i g . 2 S-Q 2 f / r z.- 3-g 

53 2,t)10 S. Iri..:,:'•• ir-c- li (it Z. 5--° 1.4 ii f 1._ 

s- 537:4- S• VI i. 11 -1— 2-"5. - 2.. Y.) 

Y Y r scq 6-, 0S 3. li 1 I. c t VI 2c z .sz_ r2.. 1- ii 

3 co 3-(3. in- 119 I.'S- HT 

3-C sY4. (4.5" 7:7 ,g ? , .5- i 11- z :$' 2. yi 

S-51, yy z.-41 to 15 c II 4- 

- . 

vm= Lis 67- sFr= -Le -Mit Mt . th.- .r --. • „ , '""tafigglaiiArr7- . 

FIELD DATA SHEET 

Moisture Recovery Data: 

Intinger 1 2• 3 4 

Final wt., g JO 0 

Initial wt., g. hs 0 AL

Difference iti Ni c? 

Integrated Gas Sampling Data: 

Box No. Leak Rate, cc/min 

Bag No. 02 Reading 

Bag Vol. 02 Analyzer No. 

at 15 in Hg 
Appendix C 

Instrument Output 
Barr Engineering Co. 

DL Output 

Line 11 Waste Gas Stack - 

SV 104 Gaseous Pollutant Testing 

December 21, 2005 

Northshore Mining Co. 

Slyer Bay, Minnesota 

Pellet Plant 

NShore_L11_NOx 

RECORD 

RN 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

32 

33 

34 

35 

36 

37 

38 

39 

40 

41 

42 

43 

44 

45 

46 

47 

48 

49 

50 

51 

52 

53 

54 

55 

56 

57 

58 

59 

60 

TOA5 

TIMESTAMP 

TS 

12/21/2005 7:34 

12121/2005 7:35 

12/21/2005 7:36 

12/21/2005 7:37 

12/21/2005 7:38 

12/21/2005 7:39 

12/21/2005 7:40 

12/21/2005 7:41 

12/21/2005 7:42 

12/21/2005 7:43 

12/21/2005 7:44 

12/21/2005 7:45 

12/21/2005 7:46 

12/21/2005 7:47 

12/21/2005 7:48 

12/21/2005 7:49 

12/21/2005 7:50 

12/21/2005 7:51 

12/21/2005 7:52 

12/21/2005 7:53 

12/21/2005 7:54 

12/21/2005 7:55 

12/21/2005 7:56 

12/21/2005 7:57 

12/21/2005 7:58 

12/21/2005 7:59 

12/21/2005 8:00 

12/21/2005 8:01 

12/21/2005 8:02 

12/21/2005 8:03 

12/21/2005 8:04 

12/21/2005 8:05 

12/21/2005 8:06 

12/21/2005 8:07 

12/21/2005 8:08 

12/21/2005 8:09 

12/21/2005 8:10 

12/21/2005 8:11 

12/21/2005 8:12 

12/21/2005 8:13 

12/21/2005 8:14 

12/21/2005 8:15 

12/21/2005 8:16 

12/21/2005 8:17 

12/21/2005 8:18 

12/21/2005 8:19 

12/21/2005 8:20 

12/21/2005 8:21 

12/21/2005 8:22 

12/21/2005 8:23 

12/21/2005 8:24 

12/21/2005 8:25 

12/21/2005 8:26 

12/21/2005 8:27 

12/21/2005 8:28 

12/21/2005 8:29 

12/21/2005 8:30 

12/21/2005 8:31 

12/21/2005 8:32 

12/21/2005 8:33 

12/21/2005 8:34 

- 12/21/2005 83-$ 

12/21/290,58: 3-6. 

12/112ö05837 

.12/21/2665- 838: 

12/21 /200509 . 

12/21/2605 OP': : 1-2/21'/200,5 8:41 

12/21/2005 8.42;' 

2/21/2605,6:4' 

NOx_Avg 02_Avg CO2_Avg 

PPM Percent Percent Comments 

-0.2 0.0 0.0 Analyzer Calibration 

-0.2 0.0 0.0 Analyzer Calibration 

-0.1 0.0 0.0 Analyzer Calibration 

14.1 0.0 0.0 Analyzer Calibration 

79.0 0.0 0.0 Analyzer Calibration 

90.0 0.0 0.0 Analyzer Calibration 

89.7 0.0 0.0 Analyzer Calibration 

66.0 0.0 0.0 Analyzer Calibration 

50.7 0.0 0.0 Analyzer Calibration 

50.0 0.0 0.0 Analyzer Calibration 

223 6.1 2.5 Analyzer Calibration 

0.4 20.0 5.0 Analyzer Calibration 

0.3 15,8 7.2 Analyzer Calibration 

0.2 8.9 8.9 Analyzer Calibration 

0.3 9.5 6.0 Analyzer Calibration 

2.4 17.6 0.0 System Bias Check 

9.1 3.2 -0.1 System Bias Check 

2.7 0.2 -0.1 System Bias Check 

0.4 0.1 0.0 System Bias Check 

0.3 0.1 0.0 System Bias Check 

0.2 0.0 0.0 System Bias Check 

0.2 0.0 0.0 System Bias Check 

0.1 0.0 0.0 System Bias Check 

0.1 0.0 0.1 System Bias Check 

15.5 0.1 0.1 System Bias Check 

75.9 0.1 0.1 System Bias Check 

87.9 0.0 0.1 System Bias Check 

88.2 0.0 0.0 System Bias Check 

87.8 0.0 0.0 System Bias Check 

80.6 0.0 0.0 System Bias Check 

55.0 0.0 -0.1 System Bias Check 

49.4 0.0 -0.1 System Bias Check 

49.6 0.0 0.0 System Bias Check 

49.7 0.0 0.0 System Bias Check 

49.0 0.0 0.0 System Bias Check 

24.8 0.0 0.0 System Bias Check 

2.1 0.0 0.0 System Bias Check 

1.3 0.0 0.0 System Bias Check 

1.7 0.0 0.0 System Bias Check 

37.3 0.0 0.0 System Bias Check 

86.6 0.0 0.0 System Bias Check 

88.6 0.0 0.0 System Bias Check 

67.2 0.5 0.6 System Bias Check 

14.0 16.7 4.7 System Bias Check 

5,2 19.6 4.9 System Bias Check 

4.5 19.8 5.0 System Bias Check 

4.1 19.9 _4.9 4 System Bias Check 

4.1 15.5 7.1 System Bias Check 

3.5 9.5 8.7 System Bias Check 

3.0 8.9 8.8 System Bias Check 

2.4 8.9 8.8 System Bias Check 

2.1 . 8.9 8.8 System Bias Check 

1.9 8.4 7.3 n Stack 

2.0 2.1 0.7 n Stack 

24.5 11.9 1.4 n Stack 

82,0 16.8 1.6 n Stack 

90.0 17.3 1.6 n Stack 

88.9 17.3 1.6 n Stack 

87.1 17.3 1.6 n Stack 

87.1 17.3 1.6 n Stack 

88.6 17.3 1.6 n Stack 

89.3 . 17.2 Run 1 

92.0 1-7.2 Run 1 , 

92.1 117. 2 , - 1 .7 Run 1 ., _ 93.3 17.2 1.7 • Run 1

- 95.0 - 17.1 1.7 , Run 1 

98.7 17.1 1.7 Run 1 

17.1 - 1.7 Run 1 - s 

.1 -17.2.. , Run 1 

95.3 , 17.2 1.7 Run 1 

Page 1 of 5 
Barr Engineering Co. 

DL Output 

Line 11 Waste Gas Stack - 

SV 104 Gaseous Pollutant Testing 

December 21, 2005 

Northshore Mining Co. 

Siver Bay, Minnesota 

Pellet Plant 

TIMESTAMP RECORD NOx Avg 02_Avg CO2_Avg 

TS RN PPM Percent Percent 

12/2112905.,,844_'),:. , -, .''.7.0:_7 - 965 '1'.172' . .7'..*:"7 '77 .-:1...;7. 7.7,..7... 

...12/.2.11.4-01;4. 71 974 172 . 1:.7 

: 12/2122.00-$4340, . z 96:9: 2 17 , . , , . 

12/91/2095 t 4777 . .•:: • 73, • "97.7 • • 172; 1,7 _ 

•- 12/27005 1 . 848. : 74 '-. -....:1009 . '::.:'.17-:1 - 17 - : : -,. ., , . . 

- 12/21/2005J349 75...;,;., 102',5 , .,.'• 17..'1 : . ..1 ;.7 7 

1 202!-_666 '6,.68 ; _.101'..-0 . 174 . . : . 

.„ , , ' 1 :7... 

: -.1 2/21/4900 ,8:51 T . 77. ..., • . : .102.g : 1.7:,i.. , . 1.7 , 

L12i21/2905'852. : ..78:; .. 1012 • 

..12/21(2005.8:6.' 79 1.7 

.:12/21/2005 854 .. .0.";.;; 10174 ,:.:: ..7`17...1 1:7. - 

7:12/2119005;8 .55: ..1 1 'lot 8 .:77: ' 11,1; .1..i7 ..7. : ....,_, , •. • ; 7 .. 

19/21/2005.7856.... •82 '109.9 7 .1.7.'1 ' 

12/21/2005 8;67 1 ,.. 

.- 83 100,...1 ].- :. - 177.17,- 1:67 

12/21/2005 8:58. ._ •s4. 100.2.. 17:1 ' 1i8 ,.... . : 

12/21/2005859.,7. • 85 . ...993 : 17.1 ' :7 1.P ".., . . 

12/1-1.-20,0s::909:::, ' 8.6 .: 190.7. 17.1 1:8. : . .. 

12/91/96,05=::901. - 7 • : 100.6 17.1 7. 1.6:. ,-. .. .. 

7,.. • : 12/21/2005'.902,7 : 88 ', ,:,9 99 : ,:7;1 17 - , „.: 18 

719191/2009:..903'7 . .99.1 '17,1, : 1:6 

: 12/2112005 9:04 .' -7.-790 • ' ;96.4 717.2 : ...1.7 

• 12/21/2005 . 905 :. 791" 7: 1: :: 95.1 : , 1.7.2 . . 1:7: 

•:: ,.• 7 :. 12/21/2005 906 ., . 92 , ;',.95.27'. :. 17.2 7 . 17 ' 

12/21/2005 9;07: 7'7 ..96.:. 0 . ..17,1 -. ... I 

12/21/2005908. 7 : 95,7 • .171 . 

,...12/91/2005:909:,.. ..795,9 : i 171 : 

......12/21/20059 10 96 9.8 , - .:172:- .1 -- 

12/2112005 911 :7'9811.: ,..:17.0... 

:712/21/2005.912 . ..:::99:4. :17,0 : 

12/21/2005913 99 '99:7i: 7 .170: : .: , ... 

12/21/2005 6:14 100-i: 1005 17.,0r.. 

12/21/2005915 - • 101 n.' -1-00.8:. .-,i7ci 

12/21/20059 16 :, 104.:' . 1021 ,- .173:1; ' : . : ..: 

12/21/.20059:17, . .7103 . ... 103,6"7 -. ... 7:. 17,o. 

112/21/2905 9 .16 •: . !-104 , ,103,S;LJ: -179 _ . .. , . : : 12/21/2005 .919 . • :1p5" . - ..10,..,3r_,' 17,07•• 

. 12/211200577920; :10$ . , 1016 :-, : 17.0 t 

12/2112005921 ' 1,07::: .,, .,-.4000 , r, : : -170 " 

.12(211n05.'9,2 , :' _ 108.::-, I : ,100.9:,- : 17.0. 

.1212',Ii00593 - 10- 9*.: :' . • :1. .093 . . 171 ; . 

12/21/2005 924 '‘• .1 10 ,. - : ,, .. .., ;160., :, 17:1:-__ 

,12q1 (200s 925 111 : ::-..190.7.:,.:. 7 171 .- 

12/21/2005926 7 . 1.12. , 7: 100g .. :: ; 17:1. ., .. _. - . 12/2.1 /2005 927: 113; E: . 96.:V 17.1 :- . . 12/21 /9005 9 ...28..:: 7...:•114,':: . ::99.:4.2.: .7.7'.17. •1 ..7 

,12/21/2005 929 , • 115 971 -•.• 171 

12/21/2005930 !: 116 • : .171 

12/21/2005931 . - 117 ' 96.1 .:.- . 171 , 

ii .1,21i20Q5 932 . 118 .7.996 .7:., 7 . : . -::•17,..,1 

12/21/2005933 : . 119 - -.97.:".0=7, 17.,1. 

127.1*./2, ._005r:54•-•' L:120-::' ,. 97.1 ,:: :171.: 

Average Run 1 98.5 17.1 

12/21/2005 9:35 121 96.6 17.1 1.8 System Bias Check 

12/21/2005 9:36 122 96.6 17.2 1.8 System Bias Check 

12/21/2005 9:37 123 96.9 16.6 1.6 System Bias Check 

Reporgram Datalogger to adjust NOx analyzer scale to 0-1,000 ppm. 

0 15.1 0.1 0.1 System Bias Check 

1 2.6 0.1 0.1 System Bias Check 

2 7 :-.1.4.-.- 0.1 011 System Bias Check 

3 4.0 0.1 0.1 System Bias Check 

4 9.6 0.1 0.1 System Bias Check 

5 38.9 0.0 0.1 System Bias Check 

6 78.9 0.0 0.1 System Bias Check 

7 80.8 0.0 0.1 System Bias Check 

8 83.8 0.0 0.1 System Bias Check 

9 851 0.0 0.1 System Bias Check 

10 86.4 0.0 0.0 System Bias Check 

11 86.3 0.0 0.0 System Bias Check 

12 85.9 0,0 0.0 System Bias Check 

13 85.8 0.1 0.1 System Bias Check 

Comments 

.R.On'1 - - 

'Ruh .1:• 

....Run .1 . 

(3un '1 . 1" 

Ftiin 1 

13uri:1 .7 

Run 1 : ' 

Run 1.. 

• Rijn 1. ,.. 

Run 1 

(1.0h . 1 

Run 1 ... 

Ruh .1 . .' 

: Run 1; 

• Run 1 • • 

..R0n7.1 

Run 1. 

RUn71 

.Rtin„1. 

RunI 

Run 1 I 

_Run. 1 

. ROn. .17 . 

• Ruh, 1 

7.Run . 1 

Run 1 

7 . R.Un 1 .. • 

Run1' . • 

Run 

Run 17' • 

' . . • 

„Mull 

. „ 

.77 Fon 1 

Run - 1 . 

Run : 1 - 

Rup71. ,7 

RUi1,1.7. ; 

• Run 1 

,Run • . 1 

.Run 1- 

•,RUn . .1. . 

:kun.1. :..• 

';•. R061, I 

:Run. 1 

,Run 1: : 7 

Run 1 

..Run 1 : 

, 

1.7 Average Run 1 

12/21/2005 9:39 

12/21/2005 9:40 

12/21/2005 9:41 

12/21/2005 9:42 

12/21/2005 9:43 

12/21/2005 9:44 

12/21/2005 9:45 

12/21/2005 9:46 

12/21/2005 9:47 

12/21/2005 9:48 

12/21/2005 9:49 

12/21/2005 9:50 

12/21/2005 9:51 

12/21/2005 9:52 

Page 2 of 5 
Barr Engineering Co. 

DL Output 

Northshore Mining Co. 

Slyer Bay, Minnesota 

Pellet Plant 

Line 11 Waste Gas Stack - 

SV 104 Gaseous Pollutant Testing 

December 21, 2005 

TIMESTAMP RECORD NOx_Avg 02_Avg CO2_Avg 

TS RN PPM Percent Percent Comments 

12/21/2005 9:53 14 126.0 0.2 0.0 System Bias Check 

12/21/2005 9:54 . 15 225.7 0.1 0.0 System Bias Check 

12/21/2005 9:55 16 242.8 0.0 0.0 System Bias Check 

12/21/2005 9:56 17 251.3 0.0 0.0 System Bias Check 

12/21/2005 9:57 18 250.9 0,0 0.0 System Bias Check 

12/21/2005 9:58 19 249.4 0.0 0.0 System Bias Check 

12/21/2005 9:59 20 249.2 0.0 0.0 System Bias Check 

12/21/2005 10:00 21 248.3 0.0 0.0 System Bias Check 

12/21/2005 10:01 22 212.8 0.0 0.0 System Bias Check 

12/21/2005 10:02 23 107.3 0.0 0.0 System Bias Check 

12/21/2005 10:03 24 89.9 0.0 0.0 System Bias Check 

12/21/2005 10:04 25 89.8 0.0 0.0 System Bias Check 

12/21/2005 10:05 26 84.6 5.2 2.5 System Bias Check 

12/21/2005 10:06 27 29.1 18.9 5.0 System Bias Check 

12/21/2005 10:07 28 3.2 19.8 5.1 System Bias Check 

12/21/2005 10:08 29 2.3 19.8 5.1 System Bias Check 

12/21/2005 10:09 30 2.5 19.9 5.1 System Bias Check 

12/21/2005 10:10 31 2.8 19.9 4.8 System Bias Check 

12/21/2005 10:11 32 28.9 18.8 2.0 In Stack 

12/21/2005 10:12 33 85.4 17.3 1.7 In Stack 

12/21/2005 10:13 34 93.0 17.2 1.7 In Stack 

12/21/2005 10:14 35 93.9 17,2 1.7 In Stack 

12/21/200510:15 .:.,: 36 . 94.2 7 „ 17,1 1,7 : ,RUn 2 .' 

12/21/200510:16 ' . 37 94.5 17.1 1.7 *Run 2 

12i21/200.16:17 38 . 94,5 17.1 1.7 Run 2 . 

12/21/2005'10:18 , 39, ' 98.0 17.1 1,7 Run 2 

:.:.12/2-1/2000f10:19 '.- 4.0' 95.0: . . : 17.1 ' " 1.7 Run 2 . 

•:.. 12/21/200510:20.:::. 95.4 17.1 11 , ... Run . 2 

12/21/20t*0:21 ,.' :94A ':' : 17.2H. 1..r "Run' 2 _ . , .-,,. . • 12/21/200,510:22 . ' 00:0:: I 17.1' . 1'.7 . .Run 2 ..,:

12/21/200516:23: 95:9' : 17.1 . 1.7 : , Run 2 

1 2/21/200510:24 '45 . , , :95,3 17.1 . _: 1.7- 

45 

_11.4.i,-2•-,‘ = •

;124'1/4.000;5:::: , 40 '. --.11.±7.,._ , 7Run 2',' . 

„,i 

, .,*-1 -7:1 - 

12/21/2005 10:26 „ 47 ..- _. , 

P. ' 12/21/2005 10:27 ''P9§....2 ' 1'. 

17A . Run 2' 

::- 1'7:1 17 RUn'2 

; -121202005,*d6 49:: - 7195:6 3- , ... __ „. : 

17:1 1 * * Run 2 '• 

12/21/2005'.10:29.:, 60; . 97,1 17:1 "1.7 ; • ii.iri 2 

' .12/21/.20.0510o: : §i 96:0 17.1 , 1.7 Run '2 

12/21/2005-10:31 52 95:2 ' 17.1 1.7 Run 2

12/21/208102, 53 . 04,5 ., 17,1 • , 1,7 Run 2 " 

12/21/2005 10:33 : 54 95.6 17.1 

17,1 1.7 

1.7 Run '2 

12/21/2005 18:34 55 95.4 Ruh 2 

. 12/21/200510:35 i: 55 95,0 17.1 • 1,7 Run 2 

- 12/21/200510:36 ' 57 95.3 : 17:1: 1.7 : Riih: 2 ' 

•: 12/211200540:37 69 : 98.2 17.1' 1.7 kun 2. 

,12/21/26.85A08 „: 59. .. ‘: 97.0 17.0 1.7 Run 2 

12/21./.2005:1009;, 60 ' p8.4' 17.0 1.7 . Run 2 

: 12/21/2905.71d:40 n ' -91 99.1 17,0 1.8 Run 2 

.12/21/2805-,1 0:441, , , : 62 100.0 17.0 1.7 Run.- 2 

.,1/21/2000J1942,.-: .. 63 99:0 17:0' 1.7'. ,Run 2 . 

: 12/21/2005101 . -:,0,..: . '64 :. 98,4 17.0 1.7. Run 2 * 

. 12/21/2051 0j44 65. 97.7 17.0 1.7 Ruh 2 

. .712/21120. 0 10:45. : - 667 97.91, ' 17,0 1.7 Run? 

12/21/2005 10:40 ' 7. 98.:0 17.0 1.7 Rt..in 2 

12/21/2605 10;47 . 68 .99.2 17.0 1.7 Run 2 , 

, 12/2:1/20650.467',:, 69 100.3 .: 17,0 1.7 Ruh 2 

12/2112006,:10.:49;; : lb 98.2 1.7. Run, 2 

- 12/21/2005 10:50. .71r. ; ' . 96.7- 17.1. 1.7 ' ROn. 2, 

r:12/21 /2005 ,:i 0:51: - 7g.::71 ; 9.6 . ' 17,1 1 :7 -. 1:01,.2:. 

12/21/200510:52 : 73 , :: 05. ..0 ::, , :17 1 . 1,77 :.14,q.j':- 

• 12/21/2005' 10:53, i 74 7 103,3; ' .17:1 ; Run. 2- - - 7_ 12/21/260510:54i 75 : • 101.5: ' 17. :1, :. 1.7 ROO2 - 

12/21/2065=A 0:55 . : - 76 ''..: : '.9p:a :17.1 :-. _ . , ,. ' RIO: 2 • 

7: 12/217,2005 ;10:56 777; ::: 99k6 . • 17.71 ; .1:7 Run 2 , , ; . .. . , . , - .. , 12/2112905 10:57 ', ', 78 ' ' ' 100.3 ' :7 17:1 -: 1.7 RUn 2 

' 12121/2005,E . 5 , 79 : . 9,,8 ... • 17.1 : 1:7 : • Run 2 

1 212 . 1/20 . .05-0:69 : , : 80 ' - 95.1 17.1 1.7 ' ' Run 2 

12/21/2906'; 1,1:00- 81 :98,5 17.1 1.7 Ruh 2 

.,:1 2/21/2065:,:11:01, 823 101,0 17.1 . 1,7 

' 

Run 2 

-• 12/21/2066.j :1:02' - 

8 

. . ' 99.8 17.1 .'-'• 1.7 . Run 2 

12/21/2005'11 :63 - 84 : : 99.2 17.1 1.7 Run 2 

Page 3 of 5 
Northshore Mining Co. 

Siver Bay, Minnesota 

Pellet Plant 

Barr Engineering Co. 

DL Output 

Line 11 Waste Gas Stack - 

SV 104 Gaseous Pollutant Testing 

December 21, 2005 

TIMESTAMP RECORD NOx Avg 02_Avg CO2_Avg 

TS RN PPM Percent Percent Comments 

12/21/2005 11X.1,4 85 '98.6..._ 17 , Ran .2,:,'-. 

' 12/21/2005 1105 86 97,7 -:, ' ' 172 . Run 2 _ 

12/21/20051106 , 57 95.9 ' 17.2 . 17 Run 2 • , , 12/21/2005 11:0/, ' . 88 • .94:0 • 17,2 1. 6 ''_ Run 2 

1212112005 11:08, , .., 89 • • 905 :, • 11.3 1.6 *. Run 2 

12121/200511:* ' ' 90, , 90.6. 173: • 1.s Run 2 

',.:. 1z/21/20051100 .bi , .9"1:.'i-:' , 1 7:• 3 1.6 Run 2 

12/21/2005 1111 .' .93i: 17,3 . 1 .:6 Run 2 

.. 12/21120051112 93 924 .. 17.3 • 1.6 .. Run 2 „ . „ , 1 g/21/2005 1113 94 899; 17 3 . 1 .6 : Run 2 , . ' '112/21/20051114 95 91,6:-' 17:3:: 1:6' , ''Run.2 .• 

Average Run 2 96.5 17.1 1.7 Average Run 2 

12/21/2005 11:15 96 91.6 17.2 

12/21/2005 11:16 97 91,3 17.2 

12/21/2005 11:17 98 87.2 16.9 

12/21/2005 11:18 99 38.5 3.5 

12/21/2005 11:19 100 0.5 0.5 

12/21/2005 11:20 101 -0.6 0.1 

12/21/2005 11:21 102 -0.1 0.1 

12/21/2005 11:22 103 -0.3 0.1 

12/21/2005 11:23 104 17.3 0.1 

12/21/2005 11:24 105 76,0 0.1 

12/21/2005 11:25 106 86.5 0.1 

12/21/2005 11:26 107 85.9 0.1 

12/21/2005 11:27 108 86.4 0.0 

12/21/2005 11:28 109 82.5 5.4 

12/21/2005 11:29 110 28.5 19.4 

12/21/2005 11:30 111 0.8 19.8 

12/21/2005 11:31 112 0.7 19.9 

12/21/2005 11:32 113 1.5 19.8 

12/21/2005 11:33 114 44.6 18.3 

12/21/2005 11:34 115 91.2 17.2 

'12/21/2005:11:35 , 116 94.2- 17,2 

- 12/211200 111-35 . . 117 ;94.2 17,2 

• 12121120O5_11:37 1.18 95.5 17.2 

::.12/21120057 1138 ..., 119 , 96,5,', 17.2 ' 

12/21/20051139 - :120 • '.' - 95 2'.:',.: 1 7. 2' ; 1.7''' 

' 12/2112005 1140 • ' '121 -. - ..96.8 ,-- 17.2 1.7 - :- . , 12/21/2005,11:41'. . 122 : ,9-6,0';`,,,' .17.2 1.7' 

'•.:. 12/21/2605:11 :42:: '1 3 -:`; , 95.1 ' 172 ' 17, - 1 . 12/2 112005;41 :43.:, 124 , 95:5::; 17;2.:- c: - 1 17', 

. .: 1421/20051144, . , _ 

. 125 - -96.5:: :,17,1 ' .=._ 1 7 

.,/,t,1.1,41.1‘;45 126 : 97.4 -• ,7-.41,.1 , : 124112,005,11..-45: 127.,.. 98.1.: , 17.1: . 

•• I 2/21/2005:!ff:47 - '' 126 . : 96.6: ,- 17.1 1.7 

' '= 1 -241/26061.1::•48. -.. :1,20 . :'96.1l: 171 1.7 

12/21/20051149 .. : 150 ,, 95,3 . 17.1 1,7' 

12/21/2005 1150 131 : 96,1 17.1., 1,7 : 

' 12/21/20051151 132 99. :6 . 17.1. 1.7 

12/2:1/2605 11:52 133 100,4 . 17.1 1.7 • 

' 12/21/2'095 11:53-, .:- 134 101,5 .. 17.1 .1.7 

1. 2121/2605:1,1:54 :: 135 1 00. 5 17.0 _ 1:7 

12/21/200511 :155 :"'-- , 136 :: 1023 ' 170 - .-, 1.7 . . , 12/21/2005 1156 '..; 157 ; ,. 1022 17.0 ,. -.1.7 . 

12/21/2605 1 f.'57 138 101,7 ', 17.0 . , 1.7,, 

12/21/20051158 ; ', 102,7 170 S1.6., , 

12/21/2005 1 1'.59: 140 .. 6019.. . 17.:0 1,8_ 

12/21/2005'12:60 141. ' '904 ' :17,0 1,9 

1/21/200i6 1 f..b1,_ : 14Z. : 101,8 ',, 17.0 

102j/2605 '1-2:•02 -• '1.4 • 101 .5 . , 17.0. , . , .. , . 12/21i2005 1203 ' 1 44 1000 17.0 1.7 

• 12/21/20051204 : 145 , 98.2 17.0 1.7 

• 12/21/2005 12:05: .. 146 972 17:1 1j 

12/2112005 12:05 . . 147 972 ' -' 17.1 1.7 

12/211206512:071 1 .48 ' , _:96.2 17) 1 1,7 . . ' 141i2005 -1,2:68 : . . . -149 : 969 j•-17. 1 - - 1.7 

12/21/20051209 .• 150 '• : 97,3. . :;11.1 . .17 . . 

' 12/21/2005 1210 -.: :16I.,. - 97,4 .,.'' , _ .. ...: : 12/21/2005 12:11 ' '1.52. . 96.6 •`17 , 

, _12/211200512:12: : '153 _ -96.6 • 17 

1.6 

1.6 

2.1 

0.3 

0.0 

0.0 

0.0 

0.0 

0.0 

0.0 

0.0 

0,0 

0.0 

2.2 

5.0 

5,0 

5.0 

4.3 

1.8 

1.7 

1.7 

1.7 

1.7 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

In Stack 

In Stack 

In Stack 

- • RUn 

Run 3 

- Run .3 - 

:Run 3 

Rijn 3 • 

Run 3 

-RUn, 3, 

RUn -3. • 

Run 5 ; 

.; :r•Rtin 3 

-130 5 

3 

Rijn 3 

ROA 3 

Run 3 

Run, 3:, 

RUh'3 

Run -3 , 

6.. 

rt0-;, Ran 3 

R,u9,6 

siturii3 

,RUr1 3 

RUn-,3 

Run 3, 

Run 3 

RUn 3 

RUn 3 

Run 3, 

Run 3, 

RUn 3 , 

-Run 3 

. Run' 3 

Page 4 of 5 
. - 164 • 

.• . 165 • 

••• 

Barr Engineering Co. 

DL Output 

Northshore Mining Co. 

Siver Bay, Minnesota 

Pellet Plant 

Line 11 Waste Gas Stack - 

SV 104 Gaseous Pollutant Testing 

December 21, 2005 

CO2_Avg 

Percent 

1 .7 

1.7 

1.7 

1.7 

RECORD 

RN 

. • 1,54'. 

••• 155 

. 188' 

NOx_Avg 

PPM 

. 98:5 

98.8" 

99.2 

100.1 

02_Avg 

Percent 

17.1 

17.0 

17.0 

17 0 . 

Comments 

Run 3 

Run .3 

Ruh 3 

:Run 3 

Run •3 

••• ••kiin 3, .. 

1=068 

•RUn • 

•Rdri 

.:Run 

. : 17iun 

Rtifi 3' 

!Run 3.- 

• ..Rub 3 

Ruri 

Run .3 

•..Ruñ3: 

Run 3 .• 

•Run 3.. • 

, . 'Run. 

 3., 

: Run 3' 

Average Run 3 

17.0 1.7 

97;S. " . 17.1. - 1.7' 

. .160 . 951 17.'1 1.7 

972 . - 1.7 

97.5 17.1 

. 95.5 .- 17.1, 1.7 

17.1 

17:1 . . 1.7. 

171 

.1.72 .• 

., '97,0 - - • 172 1 .'7 

9518 • 172 . 17 

952 :17.2 .. 1.7 . 

-: 943 . .: 17.2 1.7 

.175 

• TIMESTAMP 

TS 

.12/21/2005 12:13 ' 

12/21/2005 12:14 

,• 12/21/.200512.:15 

•12/2112005 12:16 

..' '12/2f/2005 12:17 

12/211209512:18 

:12/21/2005 12:19 

12/21/20512:20 

12/21/200 1221, 

•-• 12/21/200512:22

-. 

12721/205 12:23• • • 

.12/21/200512:24 , 

• 12/21/20,0$.12:28 

:12/21k0O0.2;2,Q_ 

• 12/21/200812:27 

12/21/2905,1228 

12/21/2005 .1229 . 

12/21/2995 12:39 

12/21/205 12:31 

12/21/2005 

12/21/2905'12:3T, - 

12/21/200512:34 

Average Run 3 

93.8 '. 17.2 17 

: -942 17.2 - 1,7 

94:4 • 1 7.2 1- 1.7 

97.6 17.1 1.7 

12/21/2005 12:35 176 94.8 

12/21/2005 12:36 177 94.3 

12/21/2005 12:37 178 77.6 

12/21/2005 12:38 179 13.2 

12/21/2005 12:39 180 2,7 

12/21/2005 12:40 181 2.6 

12/21/2005 12:41 182 1.8 

12/21/2005 12:42 183 25.9 

12/21/2005 12:43 184 81.6 

12/21/2005 12:44 185 88.8 

12/21/2005 12:45 186 88,8 

12/21/2005 12:46 187 88.6 

12/21/2005 12:47 188 130.0 

12/21/2005 12:48 189 233.8 

12/21/2005 12:49 190 248.8 

12/21/2005 12:50 191 247.2 

12/21/2005 12:51 192 250.4 

12/21/2005 12:52 193 250.0 

12/21/2005 12:53 194 176.5 

12/21/2005 12:54 195 23.0 

12/21/2005 12:55 196 2.8 

12/21/2005 12:56 197 2.5 

12/21/2005 12:57 198 2.2 

12/21/2005 12:58 199 2.0 

17.2 1.7 

17.2 1.7 

11.6 1.6 

1.0 0.0 

0.1 0.0 

0.1 0.0 

0.1 0.0 

0.1 0,0 

0.1 0.0 

0.1 0.0 

0.1 0.0 

0.1 0.0 

0.1 0.0 

0.1 0.0 

0.1 0.0 

0,0 0.0 

0.0 0,0 

0.0 0.0 

8.0 2.9 

19.6 5.0 

19.9 5.0 

19.9 5.0 

19.5 4.5 

3.7 0,4 

Systme Bias Check 

Systme Bias Check 

Systme Bias Check 

Systme Bias Check 

Systme Bias Check 

Systme Bias Check 

Systme Bias Check 

Systme Bias Check 

Systme Bias Check 

Systme Bias Check 

Systme Bias Check 

Systme Bias Check 

Systme Bias Check 

Systme Bias Check 

Systme Bias Check 

Systme Bias Check 

Systme Bias Check 

Systme Bias Check 

Systme Bias Check 

Systme Bias Check 

Systme Bias Check 

Systme Bias Check 

Systme Bias Check 

End Testing 

Page 5 of 5 
Analyte Chart Pen Color Range Cal Gas Cylinder Number Value 

NOx Red 0-1,000 PPM Zero CC12629 0.0 

Mid CC74110 50.3 

High CC12639 90.5 

Upper CA03145 251.6 

02 Green 0-25% Zero CC12610 0.0 

Mid CC376 8.9 

High CC40094 20.0 

CO2 Blue 0-20% Zero CC12610 0.0 

Mid CC40094 5.0 

High CC376 8.9 

Chart Speed 20 cm/hr Technician Pete Rossmiller Barr Engineer

December 21, 2005 

Line 11 (SV104) NOx Emissions Testing 

Northshore Mining 

Silver Bay, Minnesota 





--, i H. . i___,.::11, 

s 4.., .--

_ . __, N , , ._ ._,,E._.,._. _ L. • ! ; ' L ' . ' . . " • , . H-
Northshore Mining Co. Line 6 Waste Gas Stack - SV621 Gaseous Pollutant Testing Barr Engineering Co. 

Silver Bay, Minnesota December 22, 2005 DL Output 

Pellet Plant 

TIMESTAMP 

TS 

NOx_Avg 

PPM 

Avg 

02_Avg 

Percent 

Avg 

CO2_Avg 

Percent 

Avg 

12/22/2005 7:01 41.9 0.0 0.0 

12/22/2005 7:02 33.7 0.0 0.0 

12/22/2005 7:03 25.2 0.0 0.0 

12/22/2005 7:04 1.0 0.0 0.0 

12/22/2005 7:05 0.1 0.0 0.0 

12/22/2005 7:06 8.7 0.4 0.0 

12/22/2005 7:07 79.4 0.0 0.0 

12/22/2005 7:08 91.7 0.0 0.0 

12/22/2005 7:09 88.9 0.0 0.0 

12/22/2005 7:10 64,4 0,0 0.0 

12/22/2005 7:11 60.9 - 0.0 -0.1 

12/2212005 7:12 49.5 0.0 -0.1 

12/22/2005 7:13 33.7 0.0 0.0 

12/22/20057:14 23.0 0.0 0.0 

12/22/2005 7:15 2.4 0.0 0.0 

12/22/2005 7:16 22.5 6.0 2.6 

12/22/2005 7:17 6.6 20.0 5.1 

12/22/2005 7:18 0.0 20.0 5.0 

12/22/2005 7:19 -0.1 16.1 7.0 

12/22/2005 7:20 -0.5 8.9 8.8 

12/22/2005 7:21 -0.9 8.9 8,8 

12/22/20057:22 -1.0 8.9 8.9 

12/22/2005 7:23 -0.6 9.3 6.7 

12/22/2005 7:24 1.8 18.9 0.2 

12/22/2005 7:25 2.9 7.5 4.8 

12/22/2005 7:26 0,8 7.9 7.6 

12/22/2005 7:27 0.1 2.4 0.9 

12/22/2005 7:28 0,3 0.3 0.2 

12/22/2005 7:29 0.5 0.1 0.0 

12/22/2005 7:30 0,4 0.1 0.0 

12/22/2005 7:31 -0.1 . : 0.1 0.0 

12/22/2005 7:32 -0.2 0.1 0.0 

12/22/2005 783 -0.2 0.1 0.0 

12/22/2005 7:34 17.0 0.1 0.0 

12/22/2005 7:35 74.6 0.1 0.0 

12/22/2005 7:36 88,4 0.1 0.0 

12/22/2005 7:37 88.5 0.1 0.0 

12/22/2005 7:38 89.2 0,1 0.0 

12/22/2005 7:39 72.4 0.1 0.0 

12/22/2005 7:40 52.2 0.0 0.0 

12/22/2005 7:41 51.0 0.0 0.0 

12/22/2005 7:42 49.1 0.0 0.0 

12/22/2005 7:43 488 0.0 0.0 

12/22/2005 7:44 48.3 0.0 0.0 

12/22/2005 7:45 45.9 0,0 0,0 

12/22/2005 7:46 28.4 0.0 0.0 

12/22/2005 7:47 21.8 0.0 0.0 

12/22/2005 7:48 21.8 0.0 0.0 

12/22/2005 7:49 21.3 1.4 1.0 

12/22/2005 7:50 9.9 18.1 4.6 

12/22/2005 7:51 -1.8 19.7 4.8 

12/22/2005 7:52 -1.8 19.8 4.9 

12/22/2005 7:53 -1.4 1 i9,9 . . :4,9 

12/22/2005 7:54 -1.8 19.9 4.9 

12/22/2005 7:55 -1.7 13.4 2.5 

12/22/2005 7:56 -0.9 1.5 0.1 

12/22/2005 7:57 -0.1 0.2 0.0 

12/22/2005 7:58 2.8 8.0 0.5 

12/22/2005 7:59 19.1 18.2 0.7 

12/221/2005 8:00 • . ' ' '23:8.'' 18,9 , 0.8 , ' 

12/22/2095.8:01 23:4. - 19.0 , 0.7 

12/22/2.005 8:92 23.4 ,, 1.9.0 .: 0.8. .; 

12/22/29958m . 24.8 ,-: '' 1 ,19.9 : 0.8 - 

12/22i2006 8:04 26..0 . 19.0 0..8 

. 12/22/2095 8:08 ,-24.9,..., . 19:0 ' 0.8, 

12/22/29958:06 24.6 0.0 . 0.8 i 

1. 2/22/.2098 8:07 ;. ; 24.2; .' 'il?:p :. 9,8' I 

12/22/20068:98,-,, ,23.8 ,is:o ..: :0:8. 

- A2/22/20068:09 . 23.4'. .10,0 . 0 8 - „.. : 12/22/2005 8:10 .4 _. . 19.9 0.8 

Comments 

Analyzer Calibration 

Analyzer Calibration 

Analyzer Calibration 

Analyzer Calibration 

Analyzer Calibration 

Analyzer Calibration 

Analyzer Calibration 

Analyzer Calibration 

Analyzer Calibration 

Analyzer Calibration 

Analyzer Calibration 

Analyzer Calibration 

Analyzer Calibration 

Analyzer Calibration 

Analyzer Calibration 

Analyzer Calibration 

Analyzer Calibration 

Analyzer Calibration 

Analyzer Calibration 

Analyzer Calibration 

Analyzer Calibration 

Analyzer Calibration 

Analyzer Calibration 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

In Stack 

In Stack 

In Stack 

In Stack 

In Stack 

Run 1 

Run 1 

Run 1 

Ruh 1 • ' 

Run 1 

„ Run 1 , 

- Rt.in't . 

.RYP 1 ' 

.. Run 1' 

.Run ,1 . 

Run 1' 

Page 1 of 5 
Northshore Mining Co. Line 6 Waste Gas Stack - SV621 Gaseous Pollutant Testing Barr Engineering Co. 

Silver Bay, Minnesota December 22, 2005 DL Output 

Pellet Plant 

: .12/22/2005 8 . 27 ...."23.7 •-' : ::: 19.0. .. ....... .. , , ..: , • '..-' 12/22/2005:8:28 • - 24.3:: - •.• 18.9 . :' '0.8 ',. - ..'.. • Ruh 1 

., 12/22./20b$,,829, : :..: 24:0... 19.0 .0:8-;:' -, ,.. ' .-1R.Uri-1 . 

.12/22/2005 8 . 30 : 23.7. ..- , 19.0 _ -:,.. CI.5 -. ! .-: -:: ' •:kUn 1 . . , :• , . ... : . 12/22/20,05831 , .,234. - . . 19.0 .`: • . ,68 . . .kuri.I ' - ' • . . . 

.., - 12/22/2005832 ::'' 23.5: . . 12/22/2005833 . 240 190 :". ' ::. "..'.,.d.8i.-.: • - .Ri.in 1 . ... • : . : ... .... , 12/224Q057`534. „..., . 23,6. 19,0 ' .:*, ,..,:::0.8:,. Run 1.. • : 

" 1 2/22/2005835 ' -: . : 190.: 7 .08 , . . Run 1. 

12/22/20058 36 227' : ::. 190 ... . . 0.,0„:-.. - .' : . ::..,. ,Ri.iii,1: 

12/22/20a $:'37•:._': 23:0•• 19.0:: - . O.,p'.:: . - ; . . ..' : .-:.Run 1 ' . . • .. *12/22/2006 =A33. •'. .. 22.7, - ., , 19.0 08 Run .1.. 

12/22/20.05839„.: . ; .,.,-, .i . 233: ',. ,. -. ... 190 ,..:05 :1:-.....7 - .... - ' -Run,1 ... ,. 

: ,-...12/224005?,8:46,, - .' ' : , 23:•6:.- ':: -:. :...1 9,0_ 0.84'..,-__;:. 'L...., . . ...., RUtilh".. 

.- 12/22/200541 .•': - -. ?O:V • 191 li 0.9 . . .''. -; Roil , 

....- ;--12/22i2005;02., :. : ;41 ' '. -: 191; ' .ROnl' . 

1212.1.068.. 843 I 236 2-19.1 , ,' . 0:8' .„. .. . . , .:..RUii 1.' 

, . 

12/22/2005844 :. : 236 : ,19.1 : . 08 . :RI:ini,.: .. • . :.__.-.- . .. -. . . , : . . - 12/22/2005845 . 238 ...;... , ' "0.8. .._ -.Run 1 

1-2/22/2005$ ;.46 . 2,8 :1 91 ,- 08 . :13coir,- . ..:, , . 12/22/2005 B47. :, • 3 19.1 8 .'. Ri.in 1: . .,. ..... . . ..., . . . 

.. 12/22/200,6445;:k ,' 23,4 19.0:' 0.'8 'kUril .... 

1 4K cc/22/2005849 '-.: ..23.:5'. 190 ..' :. 0.3-:.: L ,C ' , ikijfi' l 

'f2-/2/2bo .:-;!8. :'.56, - , : i .... . 2. - , b .', 19.9 . : Ap'.: :-. ,-, 140r1.1 

1 2/22/2005851 ''..' ' •' :.:24'. . '. 194 . 9.. 8..:: ...:‘,..;•:ki:fri . i 

12/1.2--(io5.,.0.,:p2.,.., 24.4 - , ;.:.Y19.0 , 0.8,: . *..'kuh t ---: 

1/2/2008'..8'.83 ....., ... 246 = , -:... .c 190 : 0.:8 : .: ... , .Runl ,.- ..„...-.., .... ?...„: , .. , .._„. . . ..: f2iiiii0b$'..V;64. ..: . , 24;5.., , ..., ....... • : • - . ,. ., 19:0 08,:. Ruril ' 

'. ... 121.22./.2008:56 .,• 

. :•12/22/20068:56'-•:-• 

.1 

• 

12/22/2005 9:00 23.5 19.0 0.8 System Bias Check 

12/22/2005 9:01 System Bias Check 

12/22/2005 9:02 

23.1 19.0 0,8 

System Bias Check 

12/22/2005 9:03 

22.1 12.7 0,4 

System Bias Check 

12/22/2005 9:04 

6.8 1.1 

System Bias Check 

12/22/2005 9:05 -0.5 0.0 0.0 

0.1 

System Bias Check 

12/22/2005 9:06 

0.? 0.0 

System Bias Check 

12/22/2005 9:07 

-0,7 0.0 0.0 

System Bias Check 

12/22/2005 9:08 

6,5 0.0 0.0 

System Bias Check 

12/22/2005 9:09 

21.2 0.0 0.0 

System Bias Check 

12/22/2005 9:10 

22.7 0.0 0.0 

System Bias Check 

12/22/2005 9:11 

22.6 0.0 0.1 

System Bias Check 

12/22/2005 9:12 

17.3 13.0 4.1 

System Bias Check 

12/22/2005 9:13 

1.4 igi5 5,.0 

System Bias Check 

12/22/2005 9:14 

-0.8 19.9 5.0 

System Bias Check 

12/22/2005 9:15 

-0.7 19.1 4.3 

In Stack 

12/22/2005 9:16 

12/22/2005917: , 7.6 15,3 

-0.7 3.9 0.6 

0 :8 ,,; , , _, , In Stack 

12122/200,5*19 .; , 232_ 

23:2 ?-1:P: - * ' 1P.7, ," . 

.19.o ., ," 

19:0 . : 0A.:. : ;.-.: :-,,: ' : 4-:-:' ;RU,ii 2 

0..g .". :--'. ,''.. ',-': :fide' . ' - * .1.2/24095:90 8 

TIMESTAMP NOx_Avg 02_Avg CO2_Avg 

TS PPM Percent Percent Comments 

.. 12/22/200U:11,7 . • .-'23:6 T : : ::'‘. 19:p ' •, : ...p.,8..,..: . ....Rohl 

..121,2/200j.5,...12: ' 23'..8 ' ,:::: 18.9 ',' : 0,8. ' ' ' Rub 1; 

12/22/2005813 23.1 : ; 189 '0:.8‘ : : ..-;RLin 1 

. . , 12/22/20058:14: , ' :22.7 : '18;9:: 0.8: 1.•_RUfi, 1 ., ..: ,.. 12/22/200$ 8:15 :: i 2.228 • : 18..9 : .0,8 Riiii 1 ,. 

1..2i2005... 8...10 . :: 23.7 :: .18...! .. ;- 0.8 .,- '. aub„il : : 

12/22/2005,8:17 ',';' 245 ! :: , , 18.9, :Q.5 , ,4..'RUn:r1:: 

12/22/20,06,8.:18 :., ' 246;1 1 89 : 0.8 ' i_Run1;;-_, , -

12/22/2005:19 : : r 241 co. :, ---... ,:Riiri '1 

12/22/2005 820 ., ' -:::24,2 : :',:18..9 : 0.6 .', ,ki.oil 

..12i22/200.5821: 3.- 9. 18.0 •.• 08', Ron& 

12/22/2005 822 - 23:8: ::: 19.0 , ;RUn.1 ' .. „ - 12122/2005823 ' 238:l.. , :::..." .1 p..p:':. :. 0.8 .': , Ruri 1 

:.:1 i.22/. 'po5'.. 8:24 :23:2 19...0 . 0.8 L.':. Rub I '.. 

12/22/2005:8;25 : 211 ::: .. 19. .0 OP ':'' . Run '1 . . . 

:'!.'.1z(2g/. zoo$ .§:26 :: 22.9 19.p : :;- .. 0.:.8 ., , , -. :kon:l . 

08 . :RUh 1 

.., . : ..; .6..0, , - Run. 

 1. : 

23.8 . ' 190 ' ' .' ":: 0!. :::%c.: - ',-- ' -. : -::::.: . L'Fzuri -.1 .. : 

.12/22/gq_95,:.857 : . • ' ..:4",..247 , , =, :. --_: -:'-19.0 ; ._ ., -..':' 6.8 ' - .. -.'''... .. , , = - ' ,,RUn'1 

. 

?; 12/22/2096,658 * ' 244 19:0; 0.8 :Run 1 

... 1-2/2/26056'.60. I- , . : ' -',P:P..,, 190 08 Ru1 

Average Run 1 23.7 19.0 0.8 Average Run 1 

Page 2 of 5 
Northshore Mining Co. Line 6 Waste Gas Stack - SV621 Gaseous Pollutant Testing Barr Engineering Co. 

Silver Bay, Minnesota December 22, 2005 DL Output 

Pellet Plant 

TIMESTAMP NOx_Avg 02_Avg CO2_Avg 

TS PPM Percent Percent Comments 

.12/22/2605 .9:-,20 - .. 238 ; 1-190: :'•-. D.-.8., : '. .• .• • :-.:, ; ;RUn 2 

12/22/2605'921,'. •-. 244 - :190 •_ • , s' -.0,8, - ‘; ' 'Run 2 '. 

' 12/22/2005922 ...::: ..44-: -. ,. 190 .:: ' - :0:8 . . ...Rini 2 •-; 

- 12/22/2005.„923- :'; : .242 :- • - ".1%0 -. : ::',; cr:8,.. : .-- :Fyn: ? .

.12/22/2005 9:-..4:" " 6 :• 23,7 ' '19,0 . ! - P2,' ' RUn 2 , _ . , ,_. .., 12/22/2005925 • 231 .190, 08 : ', : Run 2. 

12122/2005-926 232 .190 :' - -.- QM.' 

E .12/22/200& - :.6:3,7 -.. ' :23,2 

1/22/2665 9.:28 . . :.:•:E24:1 ::. - '1%0 :. 

12/22/2005628 : 24,6:: 190 0 

1%0: 

s. :. .8 E 

-: 0.8::.. 

' 0.8 •'. :ei Ft Fl (ill h2 i:ll.'12,... l. : ,:• 

HRUn 2';;;:;" 

i1.12/22/2606:920: . ...'4...0: : :19,0 ;' '018 .:Run 2 ; 

•:12/22/2005931'... 23.7 E1920 ;: E Run 2 

.: 12/221,2005932;: 23:9 ..... : .16 .o. . : Run 2 

•12/22/200933' • :-. 23,5::. ::. 19,0 _ .• • :.. Run 2. 

12/22/2005 %.34 • . 245 . ,19.p •:,; Run 2 

. 12/22/2005. 935 . "' ;:24.8; . 18.9 :- . : . RUn 2 

..„12/22/2005.9:36:, .•-• 242 19.0 ."; , -.RUri; .2 •• 

' 12/22/2005 0:37.-.., ..23.2. :. 190 'Run 2. - 

12/22/2005.928: : ..',.. 2313 19,0 . 

12/22/2006929 i : 23,8;,- ' •, 1 -94 .. 

: Run 2 , . . . :. 

.... . , ;RUn 2 

. , 12/22/2005 940 . - ,.-..2.6 ... - 1.9.0 ; 0.8 ; ,•Run 2 ; 

1.2/. 22/2005941 ; -.:1.24.1 . : 19.0 0.8" Run 2 

12/22/2005942 :-. -24:1 - . -19.0 • :0.8 '• - ' Run 2 

•. 12/22/2006943 ' ., .124,2 ,. , ;,19.0 ; - 0.8 Run 2 

12/22%20059:44 .28.9 : 19.0 : 0,8, Run 2 

12/22120059:45 23:3 . 19. 0 0.6 ; .Run 2 . . . •• ,12/22/2006945 :: . :,..•_' T26:4 ,,,.• ,19,0 ' ., 

„ 12/22/2005 948 "•:, - 26.1 1 ', 1%6 

2/22/2,006 9:47 :::: ;' 23:0,= ,,.. , , - 1 o:D :: .0.8:.:. , •: . Run 2 

RU6.?:.'''. . 

Run :2

08 ' Run' 2 

•-• : .12/22/200049 .',23.1:;: 19.0 '.: : :0.6: : ,,. . , . . . •. 12/22/2005950 •.; : ' 233 ,-..:19 0. ::,. - ;04: 

• 1/22/2065.0M:.' :2 ,7 -1 9.0,i '02. . ,.. 

-.RUr(2,' • ' 

:Min 2 ' ; . . , . . . . •;' 12/22/200052: .--. ,_ • •232 ,' 160 ...:0,6j , Rub 2 

-:: 12/22/2005953',:, ,,, 26-.7 '• ' 16.6 

.; : 

. : 0m -', - E . :Riiii 2 

Ej2/22/605. 654, ' ,234-' - , id:0 i'. 0,8".;; ' .. _ .„ Ruh 2 -, 

12/22/2006,955 • 44 16,0 . 0.8 .:.„ ., Run :2 

• 12/22/2005955 , :: - .26,3:::-'. 19.9 08,. , : , Ruh '2 

12/22/2005957 ,., ......23.2': -19,0 08 Run-2 

12/22/20659581• : . :23..2 --. 1 . 9,0 • ' 0;8. r - .Fkuri 2 

12/22/005959 232:. ) 90: : ; - 0..8 . RUri 2 ,.., -'. . .. , "--12/22/2005 1 000 •.'.• . -....236 :-.. --• :19,0:... .D.6 :• RUp„ 2 

12/22/2605 1001•••.:28.1 , 19.0. • 0.8 Ruh 2 .. : 

12)22/2006 1008..:. ;:-.26,8 . : 19.1.: -.:13,8 

.Iiiin.2. 

Run .2 -: 12/221206 f0:.62.: . - 236; •,::19. 1 :' 0 8 - .: ,. , 

-12i/2065 10:64.'.. ' ?•.0) ..- 19.- 1 . 0.81: . FtUri2 E: _ . . . „ . : 12/22/205 0 , 10:05 _ . , :.'4.:p. • : . :19.1 0.8i. ,F.!;KI. •'.:: 1,2722/20.00.1006 _, 23A1':',.... ': :19,1 • :'. 0.8•-: 

' 12/22/2065.10:-Qt ' '.'..s• -' ,19.1 '.... '0.8 ' ... ,:: ..RI:tnr1 2 1.2 

•:-12/22/2006'1068 ..; 23 9 , , 191'.. , 'OM Run 2 

•,-, -..',12/22/2006fo:99 .• , :: 240 ‘. , -6E.1: • : 

-'' '0:8 H. :ROri:2; 

: j.;12/22/2006 fci:ft ii:t. : :,... -i: ' . OA.: ..: ::.'',O,..t ?:, ROO-2. .' 

12/22/2005- 10.:11 1 -235 : 10I''... • .'.-0.8 ., •Riiiiy 2 . : . '.12/22./.26d5.16:12': - : 225 190 08 RUri 2. 

)2/22/2005)0:0:;• 2,226 E :.:1 -6:0 -• .'-. : o:8 ':,. :Run 2 . , „. :. , . ..1.2/22/200.5 1014 : 26.,6 . ;... 190? • " 02 : .Run2 

s 12/22/2005)006:: .- 24.0 : :.;19.0 ._ . dm .. F4Jri. .2 

.:1/2/2605 ' - 1 .0:18 238 idA :::-. 08 - Ruti:2 -•- ' , • :, 

Average Run 2 23.6 19.0 0.8 Average Run 2 

• 0.8 

0.8 

0.8 . 

0.8 

' 0:8 

• .0.8 

0.8 

12/22/2005 10:17 

12/22/2005 10:18 

12/22/2005 10:19 

12/22/2005 10:20 

12/22/2005 10:21 

12/22/2005 10:22 

12/22/2005 10:23 

12/22/2005 10:24 

12/22/2005 10:25 

12/22/2005 10:26 

12/22/2005 10:27 

12/22/2005 10:28 

23.7 19.1 0.8 

23,6 19.1 0.8 

23.0 15.1 0.5 

9.6 1.4 0.1 

0.6 0.2 0.0 

0.3 0.1 0.0 

0.2 0.0 0.0 

0.2 0.0 0.0 

6.0 0.0 0.0 

21.2 0.0 0.0 

23,5 ' 0.0 0.0 

232 0.1 02 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

System Bias Check 

Page 3 of 5 
Northshore Mining Co. 

Silver Bay, Minnesota 

Pellet Plant 

TIMESTAMP NOx_Avg 

TS PPM 

12/22/2005 10:29 16.5 

12/22/2005 10:30 1.7 

12/22/2005 10:31 -0.6 

12/22/2005 10:32 -0.7 

12/22/2005 10:33 4.1 

12/22/2005 10:34 21.0 

.12/22/2005'10:35 • • 24.2 

12422/260510;35 .: : ,24,4 

124224665 16:,37g:;:, , 12/22/2005 10: 3 8 , : 2.4:0 

02_Avg 

Percent 

CO2 _Avg 

Percent 

15.3 4.5 

19.7 5.0 

19.9 - 5:0 

17.2 3.7 

13.0 0.9 

18.6 0.8 

:19 :0 :., 

..19:0 , : • , 

0, 8 , . ' 0;8:,., ! :. 

-..10.'.0 0.8 

.: .'1 .9.0.. 'o:'8'.• ,.• . , 

Comments 

System Bias Check 

System Bias Check 

System Bias Check 

In Stack 

In Stack 

In Stack 

. Run 3 • 

 Run 3 . 

:Rcin, q .- 

, .. ,RUi13 

12/22/20010:6:: , .. Z4;0; ..:, lb:o :. '.."0.0:: :-: •.:: Rtin 3 

1242/260671046i.- .:: 246. :.• 19.0 , . . • izo'ri 3 .•- 

, ,• 12/2242005 10:41 ';•: • 24:-6-:: : . ' :19.0 ' • : :0:8:- -•Run 3, 

12‘/2.2/2003 10:42_ , 24:4 , ' : 719.,3 .:. : :b.3 : . Run 3 • 

- 12/224200516:43: '• 244, , 19:0 • i 0.8: . Ruh 3 

12/22/2005 16:44 , 24:4' - :: . : • ,• 19:0 : :0:8 Run '3 

12/22/2005 10:45 24:6 ' : 19.0. • 6.8 Run 3. 

12/22/2066 10:46 .. 20 .., '-', 0.8 RUti:3 

Line 6 Waste Gas Stack - SV621 Gaseous Pollutant Testing Barr Engineering Co. 

December 22, 2005 DL Output 

' , .;, • 12/22/2005 1659 : : ' , 24.4 , . 19.0 Run 3 i 

A2/2240611:00 1,- , 24;3 -,'. '''.19:5: -6,8. . Ruh .3 `- :: • 

1242/2065 11:61 . ,-: 24..0 . 10.6 cA Run 3 

12/22/2005:1,1:62 ; . 25.5• 10:9 . .O.a. . .Run 3 

• : A 2/22/2666.14:0 - .,2*.0''' , , _ :19 .0 : , . ; 0:6.: Run 3. - , •: ' 12/22/2005 11:04 . .. 24:2:: • • : 19:6 0':8 . Run 3 . 

-• 12/22/2005 -1,1;05 -• .1i ; 24:"' 1 ".:. ' , 19:9 ' ;0.8 .: Run 3 

• : : ... 

: 12/22/2006.10:47 :. . 2416 2' . 1.9...,0 `.: • 0.8 . 3 ' 

. A 2/2272005•10:51,,, :.'• 24:0: • 19.0 i - 6;8 . kiint -: 

H2/22/200516:52, :: 23,8 ': 19.0 ;. 2 0.8 Rthi•3 ; 

• 12/22/200510:58 ' 24.7 . 1 9 : 0 , ,:.0;5 'Run •3 •., . . 

, 12422/2095:10:53_, 23.3 :': ; 19:0:: ' •13.8::,. , .;iin:'. 3 : 

..12/2.2/2608 10:66 -:. 25:4 .. ; :19.0: - , Ru-h_-3. 

12422/2666 -1(k50 . _ : - 24:1_ • '19.0 .. •:,,0,9 •, . Run 0 ... ,. 

12/224200510:57 : '24.3 ; ,19.0: • .; ; 9.8•; r ,:- Riin3 

12/22/2666 19:48 - 24.1: ..1 .6.0 , .0.8 Run 3 

12/22/200510:49 :24:2:: 16.6 :., .::0i0.., Run a .. . : 

12/22/2065:16;54:;: :23:2: : ; :1; 96: :: :0;8" '. Ryn, 3 : , 12/22/200510:55 '• 23.1 :: 190 : , 0.8 ,Ruh .5 

:',...12/22120.91$:,1.1;03 , • ::. 24.-4 i .;.: . :•19.0. -: ::0.8:::: •'Run 3 

• 12/22/2005,11:07:;•" - --:24:3: ' ''-19.0 .0:8:: Rijn •3 ; 

';' 1 2/22/2905:11 :06 i : 24.4 •19.0 ' : 6.6 ..,Run3, • 

: • 12/22/2005 11:09 , 24:5 19,0: : . :8 , Run , .. 

12/22/2605,11s:11':::• -,':'24.6 .: ::. 19:0 ,6:81;.! ' ..R0i1,1 3 •'. -.. . - 

1242/200010. 3 :: ,6.., : 19,0 •,:' ',Rijn:3 

. 1242/2005'11:45 . . ,2a.o . 16....0.. 0.0 ., ,uli'al : , .!,. 

•12424005 1116 " 25:1:: ,'; .19.0' - -1=4.40,:3r. . ,.. 

...1242/.200511:24 - i 219 2 . 191 :. Run 3 • 

- kiin'a 

12/22/2005 11:35 

12/22/2005 11:36 

12/22/2005 11:37 

.:112/22/29051.1 .0 .:: :240 r: . ,:E19,9„ 1. ' ! b[&.:.: .,,Ron,3 , . 

-12422/2005 11:12 -:.• , 218: , 19..o •, ' : . -,, f.-8:_. : Run 3 ' , 

12/2242065„11:14 r •.. -24:2- : 19.0 0.8 '1,663, 

, ..12/224605 11:17 .16.6 ., . 6,6:::: ' ,. ....Run .,." 3 , • 

•:12/22/2,005:11:18:: .• '.. 25.5.; 6.d • , :1 . .': .,, 6:8 - „,.. Run 3 • ' 

12/22/2005 11...4 .6 .., : 25..2. ,:- tp. ..,(x,:., - .6;8 '-'. _ • 'Run 3 ' 

•.• :' "12722/29511:23 ' 24.2: :'.19.1,i; . : ••Ri.in,3.,.",,, . . ..: 12/22/2605 ,1A22 ,...4:3.• • 190 : Run,1; r; , , 

.1z/2/.435.11 :26 -... . '4.':,.:!, 19.0 .1 :: 

12i2,2120_0 , 11„,•:..21. : , . • 24.6 16:1 ,.. .Riirr,3 _ 

,12/22/2005 11;28 

:, 12/22/20051 1;29 

- 'f12/22/00...11.313. 

. 12/22/200511:31 

12/22/2005 11:32 :, 

12/22/2005 11:3 3 

'.:12/22/2005 A 1 :34 - 

Average Run 3 

12/22/206 1.1:25 24.2 ' Run 3. 

...• 12i22/26tiali :26 ,• 24.1'.'- ---Run 3::• 

. , .. ,- 12427200511:27 :: : : ::244::: 

' : 24,3 

":::24:1 ,, • 

.:191::' 

• ',..i19:1":'. 

; ‘ -,19., 1 .:. .•!:23-.:8'. , 19.1 - .0.8:' 

24:4 19.1 0.8 

24:8.. ,.., , _ 

- 

..16,1 ...,. .6.0. ,...: 24.6 - 19.1:- 0:8 

2.4.4!:„..; , . 16.1.. : ; : 6,8 .,.:, :.: 

24.4 19.0 0.8 

24.4 19.1 0.8 

24.3 19.1 0.8 

24,1 15.8 0.6 

RUn 3, 

, R4,11.3,1.... , 

'''Run'3" ' 

• Run 3 

.Ruh, ' 

Run 3 

- 'Run 3 

Average Run 3 

System Bias Check 

System Bias Check 

System Bias Check 

Page 4 of 5 
Northshore Mining Co. Line 6 Waste Gas Stack - SV621 Gaseous Pollutant Testing Barr Engineering Co. 

Silver Bay, Minnesota December 22, 2005 DL Output 

Pellet Plant 

TIMESTAMP NOx_Avg 02_Avg CO2_Avg 

TS PPM Percent Percent Comments 

12/22/2005 11:38 10.7 1.5 0.1 System Bias Check 

12/22/2005 11:39 0.4 0.2 0.0 System Bias Check 

12/22/2005 11:40 -0.1 0.1 0 0 . , System Bias Check 

12/22/2005 11:41 -0.1 0.1 0.0 System Bias Check 

12/22/2005 11:42 2.8 0.1 0.0 System Bias Check 

12/22/2005 11:43 18,1 0.1 0.0 System Bias Check 

12/22/2005 11:44 23.5 0.1 0.0 System Bias Check 

12/22/2005 11:45 23.7 0.1 0.0 System Bias Check 

12/22/2005 11:46 19,9 10.7 3.6 System Bias Check 

12/22/2005 11:47 3.8 19.7 5.0 System Bias Check 

12/22/2005 11:48 -0.1 19.9 5.0 System Bias Check 

12/22/2005 11:49 -0.1 19.9 5.0 System Bias Check 

12/22/2005 11:50 -0.2 19.9 5.0 System Bias Check 

12/22/2005 11:51 -0.3 19.4 4.4 System Bias Check 

12/22/2005 11:52 -0.4 3.5 0.4 System Response Check 

12/22/2005 11:53 -0.3 0.3 0.1 System Response Check 

12/22/2005 11:54 -0.3 0.1 0.1 System Response Check 

12/22/2005 11:55 0.3 0.1 0.0 System Response Check 

12/22/2005 11:56 43.0 0.1 0.0 System Response Check 

12/22/2005 11:57 86.7 0.1 0.0 System Response Check 

12/22/2005 11:58 88.5 0.0 0.0 System Response Check 

12/22/2005 11:59 88.8 0.0 0.0 System Response Check 

12/22/2005 12:00 85.5 0.1 0.1 System Response Check 

12/22/2005 12:01 30.8 0.1 0.0 System Response Check 

12/22/2005 12:02 0.5 0.0 0,0 System Response Check 

12/22/2005 12:03 0.0 0.0 0.0 System Response Check 

12/22/2005 12:04 28.6 0.0 0.0 System Response Check 

12/22/2005 12:05 84.3 0.0 0.0 System Response Check 

12/22/2005 12:06 88.8 0.0 0.0 System Response Check 

12/22/2005 12:07 88.8 0.0 0.0 System Response Check 

12/22/2005 12:08 87.6 0.0 0.0 System Response Check 

12/22/2005 12:09 64.6 0.1 0.0 System Bias Check 

12/22/2005 12:10 49.4 0.0 0.0 System Bias Check 

12/22/2005 12:11 49.3 , 0.0 0.0 System Bias Check 

12/22/2005 12:12 49.1 0.0 0.0 System Bias Check 

12/22/2005 12:13 43.7 0.0 0.0 System Bias Check 

12/22/2005 12:14 10.5 0.0 0.0 End Testing 

Page 5 of 5 

Analyte Chart Pen Color Range Cal Gas Cylinder Number V

NOx Red 0-100 PPM Zero CC12629 

Mid CC74046 

High CC74110 

Upper CC12639 

02 Green 0-25% Zero CC12610 

Mid CC376 

High CC40094 

CO2 Blue 0-20% Zero CC12610 

Mid CC40094 

High CC376 

Chart Speed 20 cm/hr Technician Pete Rossmiller Barr E

December 22, 2005 

Line 6 (SV261) NOx Emissicns Testing 

Northshore Mining 

Silver Bay, Minnesota 





' 

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• 
Appendix D 

Calibration Data 
I Average: I 

61 

1 2 3 

61 62 60 

EPA METHOD 3A 

BARR ANALYZER CALIBRATION 

Project Northshore Mining 

Sample Location Line 11 (SV104) - NOx Emission Inventory Testing 

Date 12/21/2005 

Operators P. Rossmiller 

Analyzer Make / Model / SN Cal. Anal. Model 200 

Analyzer 02Range (span), °A: 25 

Analyzer CO2Range (span), %: 20 

Stripchart Speed (units): 20 cm/hr 

ANALYZER CALIBRATION DATA 

Note: Difference must be less than +/- 2 percent of span 

Cylinder 

Serial No. Cert. PPM 

Zero Gas CC12610 0.0 

02Mid-range - CC376 8.9 

02High-range CC40094 20.0 

CO2Mid-range CC40094 5.0 

CO2High-range CC376 8.9 

02 

Test Runs : Test 1 R1 

Zero Gas 

Cylinder 

Value, 

% 

Analyzer 

Calibration 

Response, % 

Absolute 

Difference 

% 

Difference, 

Percent of 

Span 

0.0 0.0 0.0 0.00% 

Mid-range: 8.9 8.9 0.1 0.20% 

High-range: 20.0 20.0 0.0 0.08% 

CO2 

Test Runs : Test 1 R1 

Cylinder 

Value, 

% 

Analyzer 

Calibration 

Response, % 

Absolute 

Difference 

% 

Difference, 

Percent of 

Span 

Zero Gas 0.0 0.0 0.0 0.00% 

Mid-range: 5.0 5.0 0.0 0.10% 

High-range: 8.9 8.9 0.0 0.15% 

PRETEST RESPONSE TIME 

Note: Time to register 95% stepchange with high level gas. 

I Response 

Time (sec) 

SYSTEM CALIBRATION BIAS AND DRIFT DATA: 

Note: System Cal bias cannot exceed +/- 5 percent of span. Drift cannot exceed +/- 3 percent of span 

TEST RUN 1 

Initial Values Final Values 

Analyzer Cal 

Response, 

% 

System Cal 

Response, 

% 

System Cal 

Cal. Bias 

% of Span 

.System Cal 

Response, 

ok 

System Cal 

Cal, Bias 

% of Span 

Drift, 

Percent of 

span 

Zero Gas 02 0.0 0.0 0.00% 0.0 0.00% 0.00% 

Upscale Gas 02 20.0 19.9 -0.40% 19.9 -0.40% 0.00%. 

Zero Gas CO2 0.0 0.0 0.00% 0.0 0.00% 0.00% 

Upscale Gas CO2 5.0 5.0 0.00% 5.1 0.50% -0.50% 

TEST RUN 2 

Zero Gas 02 0.0 0.0 0.00% 0.1 0.40% -0.40% 

Upscale Gas 02 20.0 19.9 -0.40% 19.9 -0.40% 0.00% 

Zero Gas CO2 0.0 0.0 0.00% 0.0 0.00% 0.00% 

Upscale Gas CO2 5.0 5.1 0.50% 5.0 0.00% 0.50% 

TEST RUN 3 

Zero Gas 02 0.0 0.1 0.40% 0.1 0.40% 0.00% 

Upscale Gas 02 20.0 19.9 -0.40% 19.9 -0.40% 0.00% 

Zero Gas CO2 0.0 0.0 0.00% 0.0 0.00% 0.00% 

Upscale Gas CO2 5.0 5.0 0.00% 5.0 0.00% 0.00% 

System Calibration Bias = [(System Cal. Response - Analyzer Cal. Response) / Span] x 100 

Drift = [(Final System Cal. Response - Initial System Cal Response) / Span] x 100 
Analyzer 

Calibration 

Response, PPM 

-0.1 

50.4 

90.5 

251.6 

Absolute 

Difference 

PPM 

Difference, 

Percent of 

Span 

0.1 0.01% 

0.1 0.01% 

0.0 0.00% 

0.0 0.00% 

EPA METHOD 7E - Nox 

ANALYZER CALIBRATION BARR 

Project Northshore Mining 

Sample Loc. Line 11 (SV104) - NOx Emission Inventory Testing 

Date 12/21/2005 

Operators P. Rossmiller Cylinder 

Serial No. Cert. PPM 

Analyzer Make / Mod. / SN API Model 200EH CC12629 0 

Analyzer Range (span), PPM: 1000 

Stripchart Speed (units): 20 cm/hr 

Zero Gas 

Mid-range 

High-range 

Upper-range 

CC74110 50.3 

CC12639 90.5 

CA03145 251.6 

ANALYZER CALIBRATION DATA 

Note: Difference must be less than +/- 2 percent of span 

Test Runs : Test 1 R1 

Zero Gas 

Cylinder 

Value, 

PPM 

0 

Mid-range 50.3 

High-range: 90.5 

Upper-range: 251.6 

PRETEST RESPONSE TIME 

Note: Time to register 95% stepchange with high level gas. 

I Average: I 

77 I Response 

Time (sec) 

2 3 

75 78 78 

SYSTEM CALIBRATION BIAS AND DRIFT DATA: 

Note: System Cal bias cannot exceed +/- 5 percent of span. Drift cannot exceed +/- 3 percent of span 

TEST RUN 1 

Initial Values Final Values 

Analyzer Cal 

Response, 

PPM 

System Cal 

Response, 

PPM 

System Cal 

Cal. Bias 

% of Span 

System Cal 

Response, 

PPM 

System Cal 

Cal. Bias 

% of Span 

Drift, 

Percent of 

span 

Zero Gas -0.1 0.1 0.02% -0.8 -0.07% -0.09% 

Upscale Gas 90.5 88.9 -0.16% 86.1 -0.44% -0.28% 

TEST RUN 2 

Zero Gas -0.1 -0.8 -0.07% -0.5 -0.04% 0.03% 

Upscale Gas 90.5 86.1 -0.44% 86.2 -0.43% 0.01% 

TEST RUN 3 

Zero Gas -0.1 -0.5 -0.04% 2.7 0.28% 0.32% 

Upscale Gas 90.5 86.2 -0.43% 89.3 -0.12% 0.31% 

System Calibration Bias = [(System Cal. Response - Analyzer Cal. Response) / Span] x 100 

Drift = [(Final System Cal. Response - Initial System Cal Response) / Span] x 100 
ANALYZER CALIBRATION 

EPA METHOD 3A 

BR immissommi 

Project Northshore Mining 

Sample Location Line 6 (SV261) - NOx Emission Inventory Testing 

Cylinder 

Serial No. Cert. PPM 

Zero Gas CC12610 0.0 

02Mid-range CC376 8.9 

02High-range CC40094 20.0 

CO2Mid-range CC40094 5,0 

CO2High-range CC376 8.9 

ANALYZER CALIBRATION DATA 

Note: Difference must be less than +/- 2 percent of span 

02 

Test Runs : Test 1 R1 

Zero Gas 

Cylinder 

Value, 

% 

Analyzer 

Calibration 

Response, % 

Absolute 

Difference 

% 

Difference, 

Percent of 

Span 

0,0 0.0 0.0 0.00% 

Mid-range: - 8.9 8.9 0.1 0.20% 

High-range: 20.0 20.0 0.0 0.08% 

CO2 

Test Runs : Test 1 R1 

Cylinder 

Value, 

% 

Analyzer 

Calibration 

Response, % 

Absolute 

Difference 

% 

Difference, 

Percent of 

Span 

Zero Gas 0.0 0.0 0.0 0.00% 

Mid-range: 5.0 5.0 0.0 0.10% 

High-range: 8.9 8.9 0.0 0.15% 

PRETEST RESPONSE TIME 

Note: Time to register 95% s epchange with high level gas. 

I Response 1 2 3 

I Time (sec) 77 76 75 

I Average: I 

76 

SYSTEM CALIBRATION BIAS AND DRIFT DATA: 

Note: System Cal bias cannot exceed +/- 5 percent of span. Drift cannot exceed +/- 3 percent of span 

TEST RUN 1 

Initial Values Final Values 

Analyzer Cal 

Response, 

% 

System Cal 

Response, 

% 

System Cal 

Cal. Bias 

% of Span 

System Cal 

Response, 

ok 

System Cal 

Cal, Bias 

% of Span 

Drift, 

Percent of 

span 

Zero Gas 02 0,0 0.1 0.40% 0.0 0,00% 0.40% 

Upscale Gas 02 20.0 19.9 -0.40% 20.0 0.00% -0.40%. 

Zero Gas CO2 0.0 0.0 0.00% 0.0 0.00% 0.00% 

Upscale Gas CO2 5.0 4.9 -0.50% 5.0 0.00% -0.50% 

TEST RUN 2 

Zero Gas 02 0.0 0.0 0,00% 0.0 0.00% 0.00% 

Upscale Gas 02 20.0 20.0 0.00% 19.9 -0.40% 0.40% 

Zero Gas CO2 0.0 0.0 0.00% 0.0 0.00% 0.00% 

Upscale Gas CO2 5.0 5.0 0.00% 5.0 0.00% 0.00% 

TEST RUN 3 

Zero Gas 02 0.0 0.0 0.00% 0.1 0.40% -0.40% 

Upscale Gas 02 20.0 19.9 -0.40% 19.9 -0.40% 0.00% 

Zero Gas CO2 0.0 0.0 0.00% 0.0 0.00% 0.00% 

Upscale Gas CO2 5,0 5.0 0.00% 5.0 0.00% 0.00% 

System Calibration Bias = [(System Cal. Response - Analyzer Cal. Response) / Span] x 100 

Drift = [(Final System Cal. Response - Initial System Cal Response) / Span] x 100 

Date 12/22/2005 

Operators P. Rossmiller 

Analyzer Make / Model / SN Cal. Anal. Model 200 

Analyzer 02Range (span), %: 25 

Analyzer CO2Range (span), %: 20 

Stripchart Speed (units): 20 cm/hr 
EPA METHOD 7E - Nox 

BARR ANALYZER CALIBRATION 

Project Northshore Mining 

Sample Loc. Line 6 (SV261) - NOx Emission Inventory Testing 

Date 12/22/2005 

Operators P. Rossmiller Cylinder 

Serial No. Cert. PPM 

Analyzer Make / Mod. / SN API Model 200EH Zero Gas CC12629 0 

Analyzer Range (span), PPM: 100 Mid-range CC74046 24.81 

Stripchart Speed (units): 20 cm/hr High-range CC74110 50.3 

Upper-range CC12639 90.5 

ANALYZER CALIBRATION DATA 

Note: Difference must be less than +/- 2 percent of span 

Test Runs : Test 1 R1 

Zero Gas 

Cylinder 

Value, 

PPM 

Analyzer. 

Calibration 

Response, PPM 

Absolute 

Difference 

PPM 

Difference, 

Percent of 

Span 

0 -0.1 0.1 0.10% 

Mid-range 24.8 23.5 1.3 1.31% 

High-range: 50.3 50.2 0.1 0.10% 

Upper-range: 90.5 90.5 0.0 0.00% 

PRETEST RESPONSE TIME 

Note: Time to register 95% stepchange with high level gas. 

Response 1 2 3 I Average: 

I Time (sec) 89 94 92 I 92 

I 

SYSTEM CALIBRATION BIAS AND DRIFT DATA: 

Note: System Cal bias cannot exceed +/- 5 percent of span. Drift cannot exceed +/- 3 percent of span 

TEST RUN 1 

Initial Values Final Values 

Analyzer Cal 

Response, 

PPM 

System Cal 

Response, 

' PPM 

System Cal 

Cal. Bias 

% of Span 

System Cal 

Response, 

PPM 

System Cal 

Cal. Bias 

% of Span 

Drift, 

Percent of 

span 

Zero Gas -0.1 -0.1 0.00% -0.4 -0.30% -0.30% 

Upscale Gas 23.5 21.9 -1.60% 22.8 -0.70% 0.90% 

TEST RUN 2 

Zero Gas -0.1 -0.4 -0.30% 0.2 0.30% 0.60% 

Upscale Gas 22.8 22.8 0.00% 23.5 0.70% 0.70% 

TEST RUN 3 

Zero Gas -0.1 0.2 0.30% -0.1 0.00% -0.30% 

Upscale Gas 22.8 23.5 0.70% 23.5 0.70% 0.00% 

System Calibration Bias = [(System Cal. Response - Analyzer Cal. Response) / Span] x 100 

Drift = [(Final System Cal. Response - Initial System Cal Response) / Span] x 100 
THERMOCOUPLE CALI RATION 

THERMOCOUPLE ID T - 39 

Cal Date: 9/30/2005 Handheld 

BARR 

THERMOCOUPLE CALIBRATION 	 

—0— Calibration Curve - Unit Under Test 

— Upper Limit of Calibration 

— Lower Limit of Calibration 

—Extrapolated Calibration Curve 

500 600 

REFERENCE TEMPERATURE, deg.R 

THERMOCOUPLE ID T - 39 

Regression R Squared = 0.999996 

CALIBRATION TECHNICIAN: CCL 

REFERENCE STANDARDS CAL. DATE LABORATORY NIST TRACEABILITY 

Hart Scientific 9103-A s/n Al B289 12/11/2003- Northern Balance & A3717010 & A3205006 

Hart Scientific 9140 s/n Al B086 12/11/2003 Scale A3717010 & A3205006 

Temperature Calibraion Points 

Reference Deg F (To) 

Probe Temp (deg F) 

Reference Temp (deg R) deg F + 460 

Probe Temp (deg R), deg F + 460 

Difference (degrees) 

% Diff Abs. T 

Is difference less than 1.5% at all 

measured points? 

20 70 150 

20 69.9 149.9 

19 69 149 

480 529.9 609.9 

479 529 609 

1 0.9 0.9 

0.2% 0.2% 0.1% 

YES YES YES 

Are extrapolated limits less than 1.5%? YES 

FAHRENHEIT 

CALIBRATION RANGE 

,....-20.;?0 -4-200-LSD 

If not acceptable, describe corrective action: 

Technician signiture: e. QA signiture: 
Media 20 70 150 

Probe Temp (deg F) O 61,0 )141.0 

Std Used 

Reference Deg F (To) 

Reference Corr Temp (deg R) deg F + 460 

)6 ,0 61174:1 19q1 

Probe Temp (deg k), deg F + 460 

Difference (degrees) 

% Diff Abs. T (Renkin) 

W THERMOCOUPLE 

Engineering Company CALIBRATION 

Thermocouple Number Date: ef -)6 -0 5. 

Technician: 1_- 

Diff. less than 1.5% at all points. 

Graph Attached 

- Extrapolated Range with . Diff_ <= 1.5% 

( Yes / No) . 

(Yes/No) 

to 

• Description of the thermocouple's-function: 

If not acceptable, describe corrective procedures undertaken: 

•

b•?(-)}-1-j imeJ 
—0— Calibration Curve - Unit Under Test 

— Upper Limit of Calibration 

— Lower Limit of Calibration 

—Extrapolated Calibration Curve 

THERMOCOUPLE CALIBRATION 

THERMOCOUPLE ID T -34 

Regression R Squared = 0.999992 

700 

400 

400 500 600 700 

REFERENCE TEMPERATURE, deg.R 

THERMOCOUPLE CALIBRATION 

BARR 

-A-TOPM:CAZIO 

Cal Date: 

THERMOCOUPLE ID T - 34 

9130/2005 Handheld 

CALIBRATION TECHNICIAN: CCL 

REFERENCE STANDARDS 

Hart Scientific 9103-A sin Al B289 

Hart Scientific 9140 s/n Al B086 

CAL. DATE 

12/11/2003 

12/11/2003 

LABORATORY NIST TRACEABILITY 

Northern Balance & A3717010 & A3205006 

Scale A3717010 & A3205006 

Temperature Calibraion Points 20 70 150 

Reference Deg F (To) 20 69.9 149.9 

Probe Temp (deg F) 19 69 150 

Reference Temp (deg R) deg F + 460 480 529.9 609.9 

Probe Temp (deg R), deg F + 460 479 529 610 

Difference (degrees) 1 0.9 . -0.1 

% Diff Abs. T 0.2% 02% 0.0% 

Is difference less than 1.5% at all 

measured points? YES YES YES 

Are extrapolated limits less than 1.5%? YES 

FAHRENHEIT 

CALIBRATION RANGE 

4-20°0-1So 

QA signiture: trvoz'A-- 

If not acceptable, describe corrective action: 

Technician signiture: 04 C. 
Engineering Company 

THERMOCOUPLE* 

CALIBRATION 

Thermocouple Number: 3 Date: 

Technician: C. 

Media 20 70 150 

: Std Used 

Reference Deg F (To) 

Reference Corr Temp (deg R) deg F + 460 

Probe Temp (deg F) ig.o 150,0 

Probe Temp (deg R), deg F +460 

Difference (degrees) 

% Diff Abs. T (Renkin) 

Diff. less than 1.5% at all points. (Yes/No). . 

Graph Attached (Yes/ No) 

Extrapolated Range with Diff. <= 1.5% to 

• Description of the thermocouple's. function: 

If not acceptable, describe corrective procedures undertaken: 
THERMOCOUPLE CALIBRATION 

500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 

REFERENCE TEMPERATURE, deg.R 

1700 

1600 

uSI 500 

P1400 

g1300 Lu 

200 

Lu H1'50 

Lu 

—11:130 a_ 

o 900 

0 800 

2 

700 Lu 

600 

500 

400 

400 

—0—Calibration Curve - Unit Under Test 

— Upper Limit of Calibration 

—Lower Limit of Calibration 

—Extrapolated Calibration Curve 

THERMOCOUPLE ID C-5-I 

Regression R Squared = 0.999996 

1111 BARR THERMOCOUPLE CALIBRATION 

THERMOCOUPLE ID C-5-I 

Cal;Date: 12/27/2004 Meter In or Out 

CALIBRATION TECHNICIAN: NRS 

REFERENCE STANDARDS TRACEABILITY DATE LABORATORY 

Hart Scientific 9103-A sin Al B289 Report No: Al B0718 12/11/2003 Hart Scientific 

Hart Scientific 9140 s/n Al B086 Report No. Al B2024 12/11/2003 Hart Scientific 

Temperature Calibraion Points 20 70 150 

Reference Deg F (To) 20 70 150 

Probe Temp (deg F) 20 69 148 

Reference Temp (deg R) deg F + 460 480 530 610 

Probe Temp (deg R), deg F + 460 480 529 608 

Difference (degrees) o 1 2 

% Diff Abs. T 0.0% 0.2% 0.3% 

Is difference less than 1.5% at all 

measured points? YES 

Are extrapolated limits less than 1.5%? YES 

FAHRENHEIT 

CALIBRATION RANGE 

-20 1200 

If not acceptable, describe corrective action: 
Engineering Company 

THERMOCOUPLE 

CALIBRATION 

Thermocouple Number: Ye- Date:. t 

Technician: 

Media 20 70 150 

Std Used b-3 

Reference Deg F (To) 2_0 -TO t 

Reference Corr Temp (deg R) deg F + 460 41?0 .5-30 Cp 0 

Probe Temp (deg F) Z 0 (+9 

Probe Temp (deg R), deg F + 460 52.9 (908 

Difference (degrees) o ' 

% Diff Abs. T (Renkin) 0.0 o.2, 0.3 

Diff, less than 1.5% at all points 

Graph Attached 

Extrapolated Range with Diff. <= 1.5% 

C)/ No ), . 

CD' No) 

to 

Description of the thermocouple's4unction: 

If not acceptable, describe corrective procedures undertaken: 
THERMOCOUPLE CALIBRATION 

THERMOCOUPLE ID C-5-0 

Regression R Squared = 1 

1 14;7.44, 

500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 

REFERENCE TEMPERATURE, deg.R 

1700 

1600 

fill 500 

121400 

300 

1-1200 

01 1F100 

w 

—11400 a. O

• 

900 

0 

O 800 

2 

700 

600 

500 

400 

400 

--A— Calibration Curve - Unit Under Test 

Upper Limit of Calibration 

—Lower Limit of Calibration 

—Extrapolated Calibration Curve 

THERMOCOUPLE CALIBRATION 

BARR 

Ota 

THERMOCOUPLE ID C-5-0 

Cal; Date: 12/2712004 Meter In or Out 

CALIBRATION TECHNICIAN: NRS 

REFERENCE STANDARDS TRACEABILITY DATE LABORATORY 

Hart Scientific 9103-A sin Al B289 Report No A1B0718 1211112003 Hart Scientific 

Hart Scientific 9140 s/n A1B086 Report No. A1B2024 12/11/2003 Hart Scientific 

Temperature Calibraion Points 20 70 150 

Reference Deg F (To) 20 70 150 

Probe Temp (deg F) 19 69 149 

Reference Temp (deg R) deg F + 460 480 530 610 

Probe Temp (deg R), deg F + 460 479 529 609 

Difference (degrees) 1 1 1 

% Diff Abs. T 02% 0.2% 0.2% 

Is difference less than 1.5% at all 

measured points? YES 

Are extrapolated limits less than 1.5%? YES 

FAHRENHEIT 

CALIBRATION RANGE 

-20 1200 

If not acceptable, describe corrective action: 
Media 20 70 150 

. Std Used b-8 

Reference Deg F (To) • Z-0 

Reference *Corr Temp (deg R) deg F + 460 qko .3o 

Probe Temp (deg F) (pc\ 

1 Probe Temp (deg R), deg F + 460 

Difference (degrees) 

% Diff Abs. T (Renkin) 

4N-et CoOct 

f 

2._ 0 Z. 

Szn 

Engineering Company 

THERMOCOUPLE 

CALIBRATION 

(0/ 

Thermocouple Number: -7-q_ Date:. t `4 

Technician: 

Description of the thermocouple's.function: 

CoA,L- /1.1,,,.d 'Ate, S" t.)GM 0 v.+ e.4- 

If not acceptable, describe corrective procedures undertaken: 

No) 

(69 No) 

to 

Diff, less than 1.5% at all points 

Graph Attached 

Extrapolated Range with Diff. <= 1.5% 
950 c si 

900 9c6 

800 801 

750 -652- 

700 _ 702- 

650 CpS-3 

600 Co 02_ 

550 5:51 

500 ST O0 

450 lig 

400 '100 

350 3co 

300 3o1 

250 2-51 

200 201 

150 1S3 

100 10 

0 0 

Reference Pyrometer 

1000 • i 

850 

50 

-50 

A IP PYROMETER 

Engineering Company CALIBRATION 

Pyrometer Number b---1 

Pyrometer Reference: C.,L3u0 -14.-1600F 

Date: 

Technician: Nas 

Notes: 
PYROMETER 

CALIBRATION 

Pyrometer Number: 

Pyrometer Reference: 0...—.30c, —( 0-6-01--- 

Reference (°F) Reference (°C) 

1000 538 

950 - 510 

900 482 

850 454 

800 • 427 

• 750 399 

700 371 

650 343 

soo, .316 •• 

550 288 

500 260 

450 232 

400 204 

350 177 

300 149 

250 121 . 

200 93 

150 67 

100 38 

- 50 10 

0 -18 

-46 

Date: 

Technician: ki 

I Pyrometer (° ) 

be, 1 

1 _,So 

-700 

4,7 :50 

S1Y 

5.0 

I./ 

i? 

117 

Pig 

— 

Notes: 
BARR Manometer Calibration Sheet 

Manometer Number Alnor M-9H Leak Check: 

Date of Calibration 8/15/2005 Negative 0.0 @3" 

Technician JMM Positive 0.0 @3" 

Oil Manometer 

0.06 

Di. ital Manometer 

0.06 

Pass/Fail 

Pass 

0.20 Pass 

0.5 0.50 Pass 

0.8 0.79 Pass 

0.99 Pass 

1.5 1.44 Pass 

2 1.93 Pass 

1.- 2.5 2.46 Pass 

2.95 Pass 

3.45 Pass 

0.06 0.06 Pass 

0.2 0.20 Pass 

0.5 0.50 Pass 

0 

> 

0.8 0.78 Pass 

ca 

0.98 Pass 

a) 

z • 1.45 Pass 

1.97 Pass 

2.5 2.48 Pass 

2.96 Pass 

3.5 3.46 Pass 
BARR 

ELECTRONIC MANOMETER 

CALIBRATION 

Manometer I.D. Number: Leak Check: 

Date of Calibration : Ics — 5— Negative: 0 ,0 @ 3" 

Technician: U AAA Positive: es.,Z) @ 3" 

Positive: 

Negative: 

Reference Oil 

Manometer 

Electric Manometer 

0.06" 

0.2" 0 Are 0 

0.5" 0 t CD 

0.8" 

1"

1.5" I , ci Li 

2" / . 1.:1 

2.5" 

3"

3.5" 

Reference Oil 

Manometer 

Electric Manometer 

0.06" 6 1 06 

0.2" 

0.5". 0 5-0 

0:8" 

1"

1.5" 1 ret5' 

2"

2.5" • .? i 1 e 

3" (9 A T6 

Notes: C4 I :6-4\0 On, laCev- IA1-4 Pt 1-1"-e--1-6V ALL/ 

Barr Engineering Co. 

4700 W. 77th St 

Minneapolis, MN 55437 

(952) 832-2600 
j 1I W-41.30-4.1 t‘: 1.1V3t 

ft-W•Fkv. 

-17 

.0.•••• • 

A 

Engineering Company 

S-Type Pitot Tube 

Geometry Check 

Pitot Tube Number; 

Length: tp I 

Function: M-5 Probe / 

. Inspection Date: )2-Z I. -0 Li 

Technician: AN2S 

1. Are face openings perpendicular to tube axis? 1a. If NO, is angle less than 10 0 ? 

JYES (goto2) D NO (go to 1a) El YES ( go to 2) 0 NO (discontinue use) 

2. Are face openings parallel to longitudinal axis? 2a. If NO, is angle less than 5 0 7 

0 YES ( go to 3) • 1:Z NO (go to 2a) 1E1 YES ( go to 3) • 0 NO (discontinue use) 

3. Are legs of equal length? 

YES ( go to 4) 0 NO (go to 3a) 

3a. If NO, is difference less than 1/8 inch? 

0 YES ( go to 4) • 0 NO (discontinue use) 

0

1r 

4. Are center-lines of legs coincident? 

gl YES ( go to 5) 0 NO (go to 4a) 

4a. If are center-lines of face openings less than 1/32 inch? 

0 YES ( go to 5) 0 NO (discontinue use) 

5. Does this pitot tube pass all of tile olirariteria? E YES 0 NO 

/ I I 

Technician Signature: •.1 f 11911 t-,2 
Control Module C-5 Barometric Pressure 29.12 

Project: Routine Leak checks Previous Y - 0.9953 

Date: 11/21/2005 Negative - -ok >5 W.C. Previous Delta H - 1.9920 

Technician: NRS Positive - ok > in.Hg 

Orifice 

Diff 

Presure H 

Dry Gas 

Volume 

Cubic Feet 

Wet Test 

Volume, 

Cubic Feet 

Dry Gas Meeter 

Temp, F 

Wet Test 

Meter 

Temp, F 

Elapsed 

Time of 

Cal. Point 

Meter 

Coefficient 

Y 

Orifice 

Coefficient 

Inlet I Outlet dHp 

Nominal 

0.500 

Final 

14.075 

Final 

5898.00 

Final 

71.0 

Final 

70.0 

Final 

71.5 

Minutes 

12.0 

SEC 

55 

0.9979 1.9379 

Actual 

0.50 

Initial 

9.085 

Initial 

5893.00 

Initial 

70.0 

Initial 

69.0 

Initial 

71.5 

Minutes 

12.92 

Total 

4.990 

Total 

5.00 

Average 

70.5 

Average 

69.5 

Average 

71.5 

1 70.0 I 

Nominal 

1.000 

Final 

19.565 

Final 

5903.50 

Final 

73.0 

Final 

70.0 

Final 

71.5 

Minutes 

9.0 

SEC 

10.01 

0.9980 1.9503 

Actual 

1.00 

Initial 

14.570 

Initial 

5898.50 

Initial 

72.0 

Initial 

70.0 

Initial 

71.5 

Minutes 

9.17 

Total 

4.995 

Total 

5.00 

Average 

72.5 

Average 

70.0 

Average 

71.5 

I 71.3 Tm 

Nominal 

2.000 • 

Final 

25.065 

Final 

. 5909.00 

Final 

75.0 

Final 

71.0 

Final 

71.0 

Minutes 

6.0 

SEC 

34.8 

0.9959 2.0060 

Actual 

2.00 

Initial 

20.060 

Initial 

5904.00 

Initial 

73.0 

Initial 

70.0 

Initial ' 

71.5 

Minutes 

6.58 

Total 

5.005 

Total 

5.00 

Average 

74.0 

Average 

70.5 

Average 

71.3 

I 72.3 Tm I 

Nominal 

3.000 

Final 

31.095 

Final 

5915.00 

Final 

77.0 

Final 

71.0 

Final 

71.0 

Minutes 

5.0 

SEC 

22.02 

0.9932 1.9981 

Actual 

3.00 

Initial 

26.075 

Initial 

5910.00 

Initial 

75.0 

Initial 

71.0 

Initial 

71.0 

Minutes 

5.37 

Total 

5.020 

Total 

5.00 

Average 

76.0 

Average 

71.0 

Average 

71.0 

I 73.5 Tm 11 

Nominal 

4.000 

Final 

37.135 

Final 

5921.00 

Final 

78.0 

Final 

71.0 

Final 

71.0 

Minutes 

4.0 

SEC 

39.74 

0.9891 2.0104 

Actual 

4.00 

Initial 

32.100 

Initial 

5916.00 

Initial 

77.0 

Initial 

71.0 

Initial 

71.0 

Minutes 

4.66 

Total 

5.035 

Total 

5.00 

Average 

77.5 

Average 

71.0 

Average 

• 71.0 

1 74.3 Tm 11 Average 0.9948 1.9805 

M5APR.WQ1 
Routine BARR Dry Gas Meter Calibration 

Control Module Number: C-5- Leak Checks Barometric Press.: 29. ?- 

Date: 11 - Z( -0 Positive ‘-'7, k at 5 in.H20 Previous Y: 0.99513 

Technician: A)/2_5 Negative ok at 15 in.Hg Previous AH: 

Orifice 

Diff Pres. 

(°H20) 

Dry gas 

Volume 

(Ft) 

Wet Test 

Volume 

(Fe) 

Dry Gas Meter 

Temp (-,0F) • 

Wet Test 

Meter 

Temp (-0F) 

Elapsed 

Time of 

Calibration Point 

Meter 

Coefficient 

(Y) 

Orifice 

Coefficient 

AH@ Inlet Outlet 

Nominal 

O , 5- 

Final 

P.075- 

Final 

5P)S1 

Final 

7 i 

Final 

70 

Final 

-11S 

Minutes 

11 

Seconds <- 

Actual Initial Initial 

_CY93 

Initial 

70 

Initial • 

(c. 5 

Initial 

71 ,STotal 

(.4 .619 

Total 

5-, 0 Average 

70 S- Average 

Average 

<D9,STm 

Average 

it's.- -r.1 -1 

Minutes 

12 , `77 

- 

-/ '( / i i• /cr 

- 

' -4-f ■f1:7 - 

Orifice 

Diff Pres. 

("H20) 

Dry gas 

Volume 

(Ft'') 

Wet Test 

Volume 

(Fe) 

Dry Gas Meter 

Temp (-0F) 

Wet Test 

Meter 

Temp (-vF) 

Elapsed 

Time of 

Calibration Point 

Meter 

Coefficient 

(Y) 

Orifice 

Coefficient 

AH@ Inlet Outlet 

Nominal 

( - 0 

Final 

/5 .69S-- 

Final 

S-50'. S" 

Final 

73 

Final 

70 

Final 

1 i.S. 

Minutes 

't 

Seconds 

to. 0 / 

- 

Actual 

Lo 

Initial 

P-1.51 

Initial 

SM=5. 

Initial 

/2. 

Initial 

10 

Initial 

7 (.Sr 

Total 

4.995- 

Total 

5-.0 

Average 

-77 ,s-- 

Average 

-7 0 

Average 

-7 i , s-- 

Mini I e 5 

9 . 17 

p- Average Tm -M 

Orifice 

Diff Pres. 

(H2O) 

Dry gas 

Volume 

(Ft) 

Wet Test 

Volume 

(Fe) 

Dry Gas Meter 

Temp (-,,,F) 

Wet Test 

Meter 

Temp (`‘5,F) 

Elapsed 

Time of 

Calibration Point 

Meter 

Coefficient 

(Y) 

Orifice 

Coefficient 

AH@ Inlet Outlet 

Nominal 

2.0 

Final 

'ZS-,06c 

Final 

5-905 

Final 

-15- 

Final Final 

-I( 

Minutes Seconds ..4 -

Actual 

- 

2.0 

Initial 

Z0.0Co 

Initial 

590c/ 

Initial 

73 

Initial 

70 

Initial 

7 1 ,s- ;i;'- 

- e 

Total 

, DO .5— 

Total 

s-, 0 

Average 

7 q 

Average 

io.7" 

Average Minutes 

(S 2-o 

.. ---,,,,,_. 

Average Tm 

. .. 

.) 

_, _ 

Orifice 

Diff Pres. 

("H2O) 

Dry gas 

Volume 

(Ft'') 

Wet Test 

Volume 

(Ft) 

Dry Gas Meter Wet Test 

Meter 

Temp (-0F) 

Elapsed 

Time of 

Calibration Point 

Meter 

Coefficient 

(Y) 

Orifice 

Coefficient 

AH@ Inlet Outlet 

Nominal 

-S .0 

Final 

1( 45 C 

Final 

s--9 1 i 

Final 

-71 

Final 

-1 ( 

Final 

i ( 

Minutes • 

SSeconds 

2..7_ .02_ 

= 4 NI 

• 

• 

Actual 

3 .0 

Initial 

2(0.075 

Initial 

S--700 

Initial 

ISInitial 

71 

Initial 

-1 ( 

.,-, •-• 

tVAI 

-- . 

,,'-- 

Total 

.5.02_ 

Total 

5. 0 

Average 

7L 

Average 

"1 ( 

Average 

--/ 1 5% 37 

Minutes 

t . 9 ScY t 

Average Tm 

• -.-A- 

, ,.. , •-- 

Orifice 

Diff Pres. 

("H20) 

Dry gas 

Volume 

(Fe) 

Wet Test 

Volume 

(Ft') 

Dry Gas Meter 

Temp (-,E,F) 

Wet Test 

Meter 

Temp (,PF) 

Elapsed 

Time of 

Calibration Point 

Meter 

Coefficient 

(Y) 

Orifice 

Coefficient 

AH@ Inlet Outlet 

Nominal 

Li. 0 

Final 

31, f35- 

Final 

59 11 

Final 

7V 

Final 

11 

Final 

1 1 

Minutes Seconds 

3 9 ,---1(1 

i77:1" 

* Actual 

IV) 

Initial 

32 , lb 

Initial 

'f 2... 

Initial 

'1 --1 

Initial 

-/ ( 

Initial 

7! 

Total 

5: 0 33- 

Total 

c. 0 

Average 

-11.5" 

Average 

Average 

-II 

Average 

1 

Tm 

Minutes 

'1. &G-• z_..,91.94. ...

Meter Average 0.9'3I 1.98o5 

Appendix E 

Cylinder Gas Certifications 
III I 6531 BOX SPRINGS BLVD. • RIVERISIDE,PCA92507 

INC . 

TELEPHONE (909) 653-6780 • FAX (909) 653-2430 

REPORT OF ANALYSIS 

EPA PROTOCOL GAS MIXTURES 

BARRO1 

TO: Sam Foss 

Barr Engineering Co 

7390 OHMS Lane 

Edina MN 55439-2330 

DATE: June 25 2004 

CUSTOMER ORDER NUMBER: 20040420ASMF2 

CONCENTRATION(v/v) REFERENCE COMPONENT ± EPA UNCERTAINTY STANDARD 

ANALYZER 

MAKE, MODEL, SIN, DETECTION 

EXPIRATION 

DATE 

REPLICATE 

ANALYSIS DATA 

CYLINDER NO: CC376 VARIAN MODEL 1860 TCD 06/25/04 

Carbon Dioxide 8.87 ± 0.09% GMIS S/N NONE 06/25/07 8.86% 

CYLINDER #: THERMAL CONDUCTIVITY 8.88% 

CC51172 GAS CHROMATOGRAPHY 8.86% 

@17.98% LAST CAL DATE: 06/25/04 MEAN: 8.87% 

VARIAN MODEL 1860 TCD 06/24/04 

Oxygen 8.85 ± 0.09% GMIS S/N NONE 06/24/07 8.89% 

CYLINDER #: THERMAL CONDUCTIVITY 8.87% 

Nitrogen Balance CC81204 GAS CHROMATOGRAPHY 8.79% 

CYLINDER PRESSURE: 2000 psig @9.88% LAST CAL DATE: 06/23/04 MEAN: 8.85% 

ppm = gmole/mole % = mole-% 

The above analyses were performed in accordance with Procedure G1 of the EPA Traceability Protocol, Report Number 

EPA-600/R97/121, dated., SeptOmber 1997. 

This cylinder sh/ d röt be11 If the pressure is less than 150 psig. 

tayr J T .MARRIN 

The only liability of this company for gas which fails io comply with this analysis shall be replacement or reanalysis thereof by the company without extra cost, 

STANDARD CALIBRATION GASES IN ALUMINUM CYLINDERS 

ANALYST: 

M.S.CAL4OUN 

APPROVED: er-Tri 1 / 
COMPONENT 

CYLINDER NO: 

CONCENTRATION(0) REFERENCE 

EPA UNCERTAINTY STANDARD 

CC74046 

ANALYZER 

MAKE, MODEL, SIN, DETECTION 

EXPIRATION REPLICATE 

DATE ANALYSIS DATA 

MONITOR LABS MODEL 8440 04/07/04 04/14/04 

PPRI GMIS S/N 136 04/14/06 24.87 ppm 24.86 ppm 

CYLINDER #: coNTINuous 24.80 ppm 24.71 ppm 

CC65129 CHEMILUMINESCENCE 24.82 ppm 24.76 ppm 

@19.86 ppm LASTCALDATE: 04/06/04 MEAN: 24.83 ppm 24.78 ppm 

Nitric Oxide 24.81 t 0.25 

NOx 24.81 ppm 

Nitrogen, 02-Free Balance 

CYLINDER PRESSURE: 2000 psig 

Iii SCOTT- 6531 BOX SPRINGS BLVD. 0 RIVERISIDE,PCAI92507 

TELEPHONE (909) 653-6780 0 FAX (909) 653-2430 

REPORT OF ANALYSIS 

EPA PROTOCOL GAS MIXTURES 

BARRO1 

TO: Sam Foss 

Barr Engineering Co 

7390 OHMS Lane 

Edina MN 55439-2330 

DATE: April 16 2004 

CUSTOMER ORDER NUMBER: 20040323ASMF2 

ppm = I/mole/mole % = mole-% 

The above analyses were performed in accordance with Procedure G1 of the EPA Trac bility Protocol, Report Number 

EPA-600/R97/121, dated September 1997. 

This cylinder should not be used if the pressure is less than 150 psig. 

ANALYST; APPROVED: 

B.M.MARRIN J.T.MARRIN 

The only liability bf this company for gas which falls to comply with this analysis shall be replacement or reanalysis thereof by the company without extra cost. 

STANDARD CALIBRATION GASES IN ALUMINUM CYLINDERS 
ppm m gmole/mole % m mole—% 

The above analyses were performed in accordance with Procedure G1 of the EPA Trac 

EPA-600/R97/121, dated September 1997. 

This cylinder should not be used If the pressure is less than 150 psig, 

ility Protocol, Report Number 

IN J.T.MARRIN 

ANALYS APPROVED: 

III 1 6531 BOX SPRINGS BLVD. • RIVERISIDE!C A92507 

INC . 

TELEPHONE (909) 653-6780 • FAX (909) 653-2430 

REPORT OF ANALYSIS 

EPA PROTOCOL GAS MIXTURES 

BARRO1 

TO: Sam Foss 

Barr Engineering Co 

7390 OHMS Lane 

Edina MN 55439-2330 

DATE: April 16 2004 

CUSTOMER ORDER NUMBER: 20040323ASMF2 

COMPONENT 

CYLINDER NO: 

CONCENTRATION(v/v) REFERENCE 

EPA UNCERTAINTY STANDARD 

CC74110 

ANALYZER 

MAKE, MODEL, SIN, DETECTION 

EXPIRATION REPLICATE 

DATE ANALYSIS DATA 

50.3 t 0.3 

50.3 ppm 

Balance 

2000 psig 

PPm GMIS 

CYLINDER #: 

CC108765 

@51.4 ppm 

Nitric Oxide 

NOx 

Nitrogen ,02-Free 

CYLINDER PRESSURE: 

MONITOR LABS MODEL 8440 

S/N 136 

CONTINUOUS 

CHEMILUMINESCENCE 

LAST CAL DATE: 04/06/04 

04/07/04 04/14/04 

04/14/06 50.4 ppm 50.3 ppm 

50.2 ppm 50.4 ppm 

50.2 ppm 50.3 ppm 

MEAN: 50.3 ppm 50.3 ppm 

The only liability of this company for gas which fails to comply with this analysis shall be replacement r reanalysis thereof by the company without extra cost. 

STANDARD CALIBRATION GASES IN ALUMINUM CYLINDERS 
COMPONENT ANALYZER 

MANE, MODEL, 8/N, DETECTION 

EXPIRATION REPLICATE 

DATE ANALYSIS DATA 

CONCENTRATION(v/v) REFERENCE 

± EPA UNCERTAINTY STANDARD. 

ppm = omole/mole % = mole-% 

ANALYST: APPROVED: 

D.C.MARRIN .T.MARRIN 

CYLINDER NO: CC12639 

MONITOR LABS MODEL 8440 07/06/05 07/21/05 

Nitric Oxide 90.5 ± 0.8 ppm GMIS E/N 136 07/21/07 90.3 ppm 90.6 ppm 

NOx 90.5 ppm CYLINDER #: CONTINUOUS 90.5 ppm 90.7 ppm 

Nitrogen,02-Free Balance CC68777 CHEMILUM/NESCENCE 90.6 ppm 90.3 ppm 

CYLINDER PRESSURE: 2000 psig @102.4 ppm. LAST CAL DATE: 07/18/05 MEAN: 90.5 ppm 90.5 ppm 

The above analyses were performed in accordance with Procedure G1 of the EPA Trace 'lity Protocol, Report Number 

EPA-600/R97/121, dated September 1997. 

This cylinder should not be used if the pressure is less than 150 psig. . . • 

The only liability of this company for gas which falls to comply with this analysis shall be replacement or reanalysis thereof by the company without extra cost. 

Ii SCOTT-MArRIN, INC. 

6531 BOX SPRINGS BLVD. • RIVERSIDE, CA 92507 

TELEPHONE{951) 653-6780 • FAX (951) 653-2430 

REPORT OF ANALYSIS 

EPA PROTOCOL GAS MIXTURES 

BARRO1 

TO: Jason McCann 

Barr Engineering Co 

4700 W 77th St 

Minneapolis, MN 55435-4803 

DATE: July 25 2005 

CUSTOMER ORDER NUMBER: 20050719AJMM 

-• • • . — • A.-"sraiuova 0.41 /VA wi+.41 ow. OCW.7.-w"–won'AZ,"Zw=w;7ww-n7++‘,.ow o`ww—ww ow+ ow+ ow+ AM Am AM AM eV. AM NV% MA Ohl eVei 0.," rWt n....•■••0 A+, evA 

A+, .+A AAA AAA A+, AM .MA Mr, Oegi OM writ ••••■• eon Am Am /VA ergo, ■•■••• ovIA or, "...1 MA MA A/A MI Mon MA M.* AM AM ■••■ 40.1.1 esh1 MN eV. AV* IA. een en% ee■■ OM 

Ann, nal inn A -roans) ra A oce lea All 11111a11111A noncom 
DATE: September 16 2005 

BARRO1 

TO: Jason McCann 

Barr Engineering Co 

4700 West 77th Street 

Minneapolis MN 55435-4803 

CUSTOMER ORDER NUMBER: 20050719AJMM 

REFERENCE 

STANDARD COMPONENT 

CYLINDER NO: 

CONCENTRATION(v/v) 

t EPA UNCERTAINTY 

CA031 45 

ANALYZER EXPIRATION REPLICATE 

MAKE, MODEL 6/M, DETECTION DATE ANALYSIS DATA 

Nitric Oxide 

NOx 

Nitrogen ,02-Free 

251.6 t 1.6 ppm 

251.6 ppm 

Balance 

lull 6531 BOX SPRINGS BLVD: • RIVERSIDE, 92507 

INC . 

TELEPHONE (951)653-6780 • FAX (951) 653-2430 

REPORT OF ANALYSIS 

EPA PROTOCOL GAS MIXTURES 

ev, n•••••■V■ 0.1.1 AM Am AM Am AAA Am Am Am ...IAA" AM Am Am Am AA AnA nm eon ov, em Ann ov, IAA AM Am AS1 Oen eV. AM MA AM Awl /vv. AN AM Oh, ..6.5 IAA ••■••■ oWl /VA AM Am Aer,Ao. A., AM AM 

M..... en* WW1 lee■ AV, M6 AM AM AM AM /MN er, MI% NA !An A.. OM AN AAA AIA Am Am Ann ...In eh, /VA Am AA eh% NA .1.1 MA .1.16 NA OM !eV, •••■• eeet emel AM AM erm AM Am Am AM AM Ann A., AM AM Am 

CYUNDERPRESSURE:2000 psig 

MONITOR LABS MODEL 8440 

sill 136 

CONTINUOUS 

CESMILUMINESCENCE 

LAST CAL DATE: 08/22/05 

08/29/05 09/08/05 

09/08/07 251.9 ppm 251.7 ppm 

251.5 ppm 251.8 ppm 

251.1 ppm 251.7 ppm 

PAEAN: 251.5 ppm 251.7 ppm 

GHIS 

CYLINDER #: 

CC1839 

@249.8 ppm 

ppm . omole/mole % . mole-% 

ANALYST: APPROVED: 

The above analyses were performed in accordance with Procedure G1 of the EPA Traceability Protocol, Report Number 

EPA-600/R97/121, dated September 1997, 

This cylinder should not be used if the pressure is less than 150 psig. 

The only liability of this company for gas which falls to comply with this analysis shall be replacement or reanalysis thereof by the company without extra cost, 

STANDARD CALIBRATION GASES IN ALUMINUM CYLINDERS 
Appendix F 

Process Operating Data 
Northshore Mining Line 11 Process Data December 21, 2005 

12/21/2005 3:30 0.0 120.8 

12/21/2005 3:35 149.7 143.7 

12/21/2005 3:40 211.6 166.3 

12/21/20053:45 210.6 172.1 

12/21/2005 3:50 204.3 177.7 

12/21/2005 3:55 209.4 140.7 

12/21/2005 4:00 210.9 103.3 

12/21/20054:05 211.4 131.9 

12/21/2005 4:10 213.2 161.2 

12/21/2005 4:15 209.9 146.5 

12/21/2005 4:20 206.6 131.4 

12/21/2005 4:25 206.5 128.3 

12/21/2005 4:30 207.2 125.3 

12/21/2005 4:35 207.5 122.3 

12/21/2005 4:40 205.9 119.4 

12/21/2005 4:45 207.6 127.2 

12/21/2005 4:50 208.7 135.2 

12/21/2005 4:55 209.3 135.4 

12/21/2005 5:00 210.5 135.5 

12/21/2005 5:05 212.7 138.6 

12/21/2005 5:10 209.3 141.8 

12/21/2005 5:15 209.2 141.1 

12/21/2005 5:20 209.3 140.4 

12/21/2005 5:25 209.4 139.6 

12/21/2005 5:30 209.5 138.9 

12/21/2005 5:35 209.8 138.1 

12/21/2005 5:40 209.0 137.4 

12/21/2005 5:45 208.1 136.6 

12/21/2005 5:50 208.9 135.9 

12/21/2005 5:55 210.9 132.5 

12/21/2005 6:00 211.9 129.1 

12/21/2005 6:05 211.6 130.5 

. 12/21/20056:10 211.3 132.0 

12/21/2005 6:15 209.5 131.7 

12/21/2005 6:20 209.0 131.4 

12/21/2005 6:25 209.8 131.1 

12/21/2005 6:30 221.4 130.8 

12/21/2005 6:35 254.7 129.0 

12/21/2005 6:40 266.7 127.1 

12/21/2005 6:45 250.0 130.3 

12/21/2005 6:50 258.2 133.5 

12/21/2005 6:55 258.9 133.0 

12/21/2005 7:00 255.4 132.6 

12/21/2005 7:05 257.8 132.1 

12/21/2005 7:10 261.6 131.6 

12/21/2005 7:15 260.0 131.1 

12/21/2005 7:20 262.6 130.6 

12/21/2005 7:25 262.5 132.0 

12/21/2005 7:30 262.8 133.4 

12/21/2005 7:35 261.7 132.9 

12/21/2005 7:40 258.1 132.4 

12/21/2005 7:45 254.5 131.9 
Line 11 Process Data December 21, 2005 

12/21/2005 7:50 250.0 131.4 

12/21/2005 7:55 251.1 130.8 

12/21/2005 8:00 251.1 130.3 

12/21/2005 8:05 251.1 129.3 

12/21/2005 8:10 249.7 128.3 

12/21/2005 8:15 247.9 127.3 

12/21/2005 8:20 249.1 126.2 

12/21/2005 8:25 249.9 125.2 

12/21/2005 8:30 247.5 124.2 

12/21/2005 8:35 247.2 125.1 

12/21/2005 8:40 246.2 126.0 

12/21/2005 8:45 245.7 126.9 

12/21/2005 8:50 246.8 127.7 

12/21/2005 8:55 246.4 128.6 

12/21/2005 9:00 246.0 129.5 

12/21/2005 9:05 244.3 129.4 

12/21/2005 9:10 243.7 129.3 

12/21/2005 9:15 244.5 129.2 

12/21/2005 9:20 245.3 129.1 

12/21/2005 9:25 245.6 129.0 

12/21/2005 9:30 247.3 128.9 

12/21/2005 9:35 247.5 127.6 

12/21/2005 9:40 244.5 126.2 

12/21/2005 9:45 244.5 127.1 

12/21/2005 9:50 244.4 128.1 

12/21/2005 9:55 246.8 127.9 

12/21/2005 10:00 254.2 127.7 

12/21/2005 10:05 262.0 127.4 

12/21/2005 10:10 254.2 127.2 

12/21/2005 10:15 254.6 127.6 

12/21/2005 10:20 251.8 127.9 

12/21/2005 10:25 253.8 128.3 

12/21/2005 10:30 253.1 128.6 

12/21/2005 10:35 250.7 129.0 

12/21/2005 10:40 251.0 129.4 

12/21/2005 10:45 253.2 129.7 

12/21/2005 10:50 252.7 130.1 

12/21/2005 10:55 245.3 130.4 

12/21/2005 11:00 257.8 130.8 

12/21/2005 11:05 255.7 128.7 

12/21/2005 11:10 254.4 126.5 

12/21/2005 11:15 256.1 127.1 

12/21/2005 11:20 256.3 127.7 

12/21/2005 11:25 256.2 128.2 

12/21/2005 11:30 256.5 128.8 

12/21/2005 11:35 257.2 129.4 

12/21/2005 11:40 257.1 129.9 

12/21/2005 11:45 255.9 130.5 

12/21/2005 11:50 253.6 131.1 

12/21/2005 11:55 254.6 131.7 

12/21/2005 12:00 255.8 132.2 

12/21/2005 12:05 249.2 132.8 

Northshore Mining 
Northshore Mining Line 11 Process Data December 21, 2005 

12/21/2005 12:10 255.4 133.4 

12/21/2005 12:15 249.8 132.8 

12/21/2005 12:20 251.9 132.3 

12/21/2005 12:25 257.1 131.7 

12/21/2005 12:30 254.3 131.1 

12/21/2005 12:35 254.4 130.6 

12/21/2005 12:40 249.9 130.0 

12/21/2005 12:45 253.8 131.7 

12/21/2005 12:50 257.1 133.5 

12/21/2005 12:55 250.7 135.2 

12/21/2005 13:00 252.7 137.0 

12/21/2005 13:05 255.3 135.7 

12/21/2005 13:10 250.0 134.5 

12/21/2005 13:15 251.2 135.9 

12/21/2005 13:20 247.7 137.3 

12/21/2005 13:25 243.7 135.0 

12/21/2005 13:30 242.2 132.7 

12/21/2005 13:35 240.7 132.5 

12/21/2005 13:40 243.6 132.2 

12/21/2005 13:45 242.1 72.5 

12/21/2005 13:50 125.3 12.2 

12/21/2005 13:55 18.7 63.4 

12/21/2005 14:00 174.0 115.7 

12/21/2005 14:05 233.1 121.7 

12/21/2005 14:10 242.7 127.2 

12/21/2005 14:15 236.9 128.9 

12/21/2005 14:20 235.3 130.7 

12/21/2005 14:25 239.4 132.4 

12/21/2005 14:30 240.5 134.1 

12/21/2005 14:35 240.8 135.8 

12/21/2005 14:40 239.0 137.5 

12/21/2005 14:45 247.8 136.5 

12/21/2005 14:50 245.2 135.5 

12/21/2005 14:55 251.0 134.4 

12/21/2005 15:00 250.6 133.4 

12/21/2005 15:05 244.4 132.3 

12/21/2005 15:10 251.6 131.3 

12/21/2005 15:15 251.5 130.2 

12/21/2005 15:20 252.2 129.2 

12/21/2005 15:25 250.6 130.2 

12/21/2005 15:30 254.7 131.3 

12/21/2005 15:35 256.2 132.4 

12/21/2005 15:40 256.2 133.5 

12/21/2005 15:45 254.1 134.6 

12/21/2005 15:50 253.9 135.7 

12/21/2005 15:55 254.1 135.4 

12/21/2005 16:00 253.8 135.1 

12/21/2005 16:05 252.2 134.9 

12/21/2005 16:10 252.9 134.6 

12/21/2005 16:15 255.1 134.3 

12/21/2005 16:20 257.2 134.0 

12/21/2005 16:25 258.0 133.8 
Line 11 Process Data December 21, 2005 

12/21/2005 16:30 254.9 133.5 

12/21/2005 16:35 256.5 133.7 

12/21/2005 16:40 258.0 133.8 

12/21/2005 16:45 255.8 134.0 

12/21/2005 16:50 255.0 134.2 

12/21/2005 16:55 257.0 134.4 

12/21/2005 17:00 256.1 134.5 

12/21/2005 17:05 255.1 134.7 

12/21/2005 17:10 256.0 134.9 

12/21/2005 17:15 257.9 135.1 

12/21/2005 17:20 257.3 135.2 

12/21/2005 17:25 256.6 135.4 

12/21/2005 17:30 254.1 135.6 

12/21/2005 17:35 254.4 135.8 

12/21/2005 17:40 255.8 135.9 

12/21/2005 17:45 255.7 134.7 

12/21/2005 17:50 248.0 133.4 

12/21/2005 17:55 258.1 73.1 

12/21/2005 18:00 198.3 12.2 

12/21/2005 18:05 29.5 11.6 

12/21/2005 18:10 5.7 11.6 

12/21/2005 18:15 2.5 11.7 

12/21/2005 18:20 1.9 11.7 

12/21/2005 18:25 1.3 11.7 

12/21/2005 18:30 0.7 11.7 

12/21/2005 18:35 0.1 86.3 

12/21/2005 18:40 107.5 161.7 

12/21/2005 18:45 155.9 154.8 

12/21/2005 18:50 154.9 147.0 

12/21/2005 18:55 151.9 150.3 

12/21/2005 19:00 155.7 153.6 

12/21/2005 19:05 199.9 146.0 

12/21/2005 19:10 214.1 138.3 

12/21/2005 19:15 209.6 130.6 

12/21/2005 19:20 216.1 122.9 

12/21/2005 19:25 214.2 130.8 

12/21/2005 19:30 212.3 138.8 

12/21/2005 19:35 212.7 140.7 

12/21/2005 19:40 210.0 142.5 

12/21/2005 19:45 235.8 139.2 

12/21/2005 19:50 246.2 135.9 

12/21/2005 19:55 241.0 134.6 

12/21/2005 20:00 230.4 133.4 

12/21/2005 20:05 245.1 137.2 

12/21/2005 20:10 237.8 141.0 

12/21/2005 20:15 229.4 140.8 

12/21/2005 20:20 241.8 140.6 

12/21/2005 20:25 241.4 138.1 

12/21/2005 20:30 236.5 135.6 

12/21/2005 20:35 236.9 136.2 

12/21/2005 20:40 2363 136.9 

12/21/2005 20:45 236.4 137.5 

Northshore Mining 
Northshore Mining Line 11 Process Data December 21, 2005 

12/21/2005 20:50 247.7 138.1 

12/21/2005 20:55 255.9 135.1 

12/21/2005 21:00 252.2 1321 

12/21/2005 21:05 255.3 134.3 

12/21/2005 21:10 256.8 136.6 

12/21/2005 21:15 255.6 135.7 

12/21/2005 21:20 253.8 134.7 

12/21/2005 21:25 252.7 135.9 

12/21/2005 21:30 244.6 137.1 

12/21/2005 21:35 241.5 138.4 

12/21/2005 21:40 241.3 139.6 

12/21/2005 21:45 241.1 139.3 

12/21/2005 21:50 240.5 138.9 

12/21/2005 21:55 242.3 138.6 

12/21/2005 22:00 242.0 138.2 

12/21/2005 22:05 246.7 137.9 

12/21/2005 22:10 247.0 137.5 

12/21/2005 22:15 250.0 137.2 

12/21/2005 22:20 253.0 136.8 

12/21/2005 22:25 252.6 136.5 

12/21/2005 22:30 252.2 136.1 

12/21/2005 22:35 252.2 135.8 

12/21/2005 22:40 252.9 135.5 

12/21/2005 22:45 253.8 135.1 

12/21/2005 22:50 254.1 134.8 

12/21/2005 22:55 252.8 134.9 

12/21/2005 23:00 257.0 135.0 

12/21/2005 23:05 250.6 135.1 

12/21/2005 23:10 258.6 135.2 

12/21/2005 23:15 255.9 135.4 

12/21/2005 23:20 256.7 135.5 

12/21/2005 23:25 254.2 135.6 

12/21/2005 23:30 254.5 135.7 

12/21/2005 23:35 256.4 134.9 

12/21/2005 23:40 256.6 134.1 

12/21/2005 23:45 256.8 133.2 

12/21/2005 23:50 255.5 132.4 

12/21/2005 23:55 254.5 133.6 

12/22/2005 252.4 134.8 
Line No. 6 

Testing Date: 12/22/05 Fce Tonnage Gas Use 

Run No. Start Time End Time LTPH MCF/hr 

1 08:00 - 09:00 102 67 

2 09:17 - 10:17 107 68 

3 10:35 - 11:35 101 68 

Average 103 68 

Line 6 

Timestamp 

12/22/2005 

VVVU301.PV VFU155.PV 

VVVU301.PV - VFU155.PV - SnapShot 

102.4 65.0 

12/22/2005 0:05 100.2 65.5 

12/22/2005 0:10 98.0 66.1 

12/22/2005 0:15 90.9 65.0 

12/22/2005 0:20 83.8 63.9 

12/22/2005 0:25 95.0 64.2 

12/22/2005 0:30 106.3 64.5 

12/22/2005 0:35 104.1 64.9 

12/22/2005 0:40 101.8 65.2 

12/22/2005 0:45 95.4 64.8 

12/22/2005 0:50 89.0 64.3 

12/22/2005 0:55 97.8 65.3 

12/22/2005 1:00 106,8 66.3 

12/22/2005 1:05 101.5 67.3 

12/22/2005 1:10 96.1 68.3 

12/22/2005 1:15 100.9 66.8 

12/22/2005 1:20 105.8 65.3 

12/22/2005 1:25 103.9 66.5 

12/22/2005 1:30 101.9 67.6 

12/22/2005 1:35 99.9 66.9 

12/22/2005 1:40 97.9 66.1 

12/22/2005 1:45 106.2 65.3 

12/22/2005 1:50 114.5 64.5 

12/22/2005 1:55 103.6 65.0 

12/22/2005 2:00 92.4 65.5 

12/22/2005 2:05 104.5 66.0 

12/22/20052:10 116.8 66.5 

12/22/2005 2:15 109.7 67.0 

12/22/2005 2:20 102.5 67.4 

12/22/2005 2:25 110.2 67.9 

12/22/2005 2:30 118.0 68.4 

12/22/2005 2:35 114.9 66.7 

12/22/2005 2:40 111.6 64.9 

12/22/2005 2:45 101.9 65.1 

12/22/2005 2:50 92.1 65.4 

12/22/2005 2:55 93.8 65.6 

12/22/2005 3:00 95.6 65.9 

12/22/2005 3:05 97.4 64.4 

12/22/2005 3:10 99.2 62.8 

12/22/2005 3:15 104.4 63.0 

12/22/2005 3:20 109.5 63.3 

12/22/2005 3:25 109,9 63.5 

Northshore Mining Line 6 Process Data December 22, 2005 
Northshore Mining Line 6 Process Data December 22, 2005 

12/22/2005 3:30 110.2 63.8 

12/22/2005 3:35 100.6 64.0 

12/22/2005 3:40 90.9 64.2 

12/22/2005 3:45 98.8 64.5 

12/22/2005 3:50 106.9 64.7 

12/22/2005 3:55 106.9 64.9 

12/22/2005 4:00 106.9 65.2 

12/22/2005 4:05 118.8 62.2 

12/22/2005 4:10 130.9 59.2 

12/22/2005 4:15 115.3 61.2 

12/22/2005 4:20 99.4 63.4 

12/22/2005 4:25 99.9 63.3 

12/22/2005 4:30 100.6 63.1 

12/22/2005 4:35 105.7 63.0 

12/22/2005 4:40 110.8 62.9 

12/22/2005 4:45 96.9 63.5 

12/22/2005 4:50 82.9 64.2 

12/22/2005 4:55 88.6 64.8 

12/22/2005 5:00 94.5 65.5 

12/22/2005 5:05 100.4 64.7 

12/22/2005 5:10 106,4 63.9 

12/22/2005 5:15 99.0 64.8 

12/22/2005 5:20 91.4 65.7 

12/22/2005 5:25 98.8 66.6 

12/22/2005 5:30 106.3 67.5 

12/22/2005 5:35 109.5 67.0 

12/22/2005 5:40 112.6 66.5 

12/22/2005 5:45 107.9 66.0 

12/22/2005 5:50 103.0 65.5 

12/22/2005 5:55 106.9 64.2 

12/22/2005 6:00 110.9 62.9 

12/22/2005 6:05 102.2 63.5 

12/22/2005 6:10 93.4 64.1 

12/22/2005 6:15 93.0 64.7 

12/22/2005 6:20 92.7 65.3 

12/22/2005 6:25 100.0 65.5 

12/22/2005 6:30 107.3 65.6 

12/22/2005 6:35 105.6 65.7 

12/22/2005 6:40 103.7 65.8 

12/22/2005 6:45 107.0 65.9 

12/22/2005 6:50 110.4 66.0 

12/22/2005 6:55 113.8 67.0 

12/22/2005 7:00 117.2 67.9 

12/22/2005 7:05 111.5 68.9 

12/22/2005 7:10 105.7 69.8 

12/22/2005 7:15 104.2 68.5 

12/22/2005 7:20 102.8 67.1 

12/22/2005 7:25 101,3 67.4 

12/22/2005 7:30 99.8 67.8 

12/22/2005 7:35 98.4 68.1 

12/22/2005 7:40 96.9 68.5 

12/22/2005 7:45 99.7 68.8 
Northshore Mining Line 6 Process Data December 22, 2005 

12/22/2005 7:50 102.5 69.2 

12/22/2005 7:55 109.9 68.0 

12/22/2005 8:00 117.4 66.7 

12/22/2005 8:05 109.6 66.5 

12/22/2005 8:10 101.5 66.3 

12/22/2005 8:15 102.1 66.1 

12/22/2005 8:20 102.7 65.9 

12/22/2005 8:25 106.0 67.1 

12/22/2005 8:30 109.5 68.3 

12/22/2005 8:35 102.2 66.9 

12/22/2005 8:40 94.9 65.5 

12/22/2005 8:45 95.5 66.2 

12/22/2005 8:50 96.2 67.0 

12/22/2005 8:55 94.2 671 

12/22/2005 9:00 92.2 68.4 

12/22/2005 9:05 92.4 67.6 

12/22/2005 9:10 92.5 66.8 

12/22/2005 9:15 103.2 67.0 

12/22/2005 9:20 114.0 67.3 

12/22/2005 9:25 116.5 67.6 

12/22/2005 9:30 118.9 67.9 

12/22/2005 9:35 111.0 68.1 

12/22/2005 9:40 103.0 68.4 

12/22/2005 9:45 103.8 68.7 

12/22/2005 9:50 104.8 69.0 

12/22/2005 9:55 105.7 68.0 

12/22/2005 10:00 106.7 67.0 

12/22/2005 10:05 108.5 67.3 

12/22/2005 10:10 110.3 67.7 

12/22/2005 10:15 102.3 66.9 

12/22/2005 10:20 94.3 66.1 

12/22/2005 10:25 98.2 67.2 

12/22/2005 10:30 102.2 68.3 

12/22/2005 10:35 106.3 68.5 

12/22/2005 10:40 110.4 68.6 

12/22/2005 10:45 104.3 68.8 

12/22/2005 10:50 98.1 69.0 

12/22/2005 10:55 99.0 69.2 

12/22/2005 11:00 100.0 69.4 

12/22/2005 11:05 103.4 68.9 

12/22/2005 11:10 106.9 68.4 

12/22/2005 11:15 99.8 67.9 

12/22/2005 11:20 92.6 67.4 

12/22/2005 11:25 93.9 66.9 

12/22/2005 11:30 95.3 66.5 

12/22/2005 11:35 104.7 66.0 

12/22/2005 11:40 114.3 65,5 

12/22/2005 11:45 106.6 66.0 

12/22/2005 11:50 98.8 66.5 

12/22/2005 11:55 101.3 67.1 

12/22/2005 12:00 103.8 67.6 

12/22/2005 12:05 110.2 67.9 
Northshore Mining Line 6 Process Data December 22, 2005 

12/22/2005 12:10 116.5 68.2 

12/22/2005 12:15 116.6 68.5 

12/22/2005 12:20 116.6 68.9 

12/22/2005 12:25 114.2 68.4 

12/22/2005 12:30 111.8 68.0 

12/22/2005 12:35 106.1 67.5 

12/22/2005 12:40 100.4 67.0 

12/22/2005 12:45 94.7 66.6 

12/22/2005 12:50 89.0 66.1 

12/22/2005 12:55 95.1 65.7 

12/22/2005 13:00 101.3 65.2 

12/22/2005 13:05 97.4 66.3 

12/22/2005 13:10 93.4 67.5 

12/22/2005 13:15 98.6 67.5 

12/22/2005 13:20 103.9 67.5 

12/22/2005 13:25 99.0 67.6 

12/22/2005 13:30 94.1 67.6 

12/22/2005 13:35 102.7 67.6 

12/22/2005 13:40 111.4 67.7 

12/22/2005 13:45 110.4 67.7 

12/22/2005 13:50 109.4 67.7 

12/22/2005 13:55 102.2 67.7 

12/22/2005 14:00 95.1 67.8 

12/22/2005 14:05 95.5 67.3 

12/22/2005 14:10 96.0 66.8 

12/22/2005 14:15 96.5 66.4 

12/22/2005 14:20 97.0 65.9 

12/22/2005 14:25 97.5 65.5 

12/22/2005 14:30 98.0 65.0 

12/22/2005 14:35 95.9 66.2 

12/22/2005 14:40 93.8 67.5 

12/22/2005 14:45 91.7 67.5 

12/22/2005 14:50 89.5 67.4 

12/22/2005 14:55 95.5 67.4 

12/22/2005 15:00 101.6 67.4 

12/22/2005 15:05 96.7 68.7 

12/22/2005 15:10 91.7 70.0 

12/22/2005 15:15 100.3 68.7 

12/22/2005 15:20 109.1 67.4 

12/22/2005 15:25 128.9 66.1 

12/22/2005 15:30 148.8 64.8 

12/22/2005 15:35 124.0 64.9 

12/22/2005 15:40 98.9 65.1 

12/22/2005 15:45 98.2 65.2 

12/22/2005 15:50 97.8 65.3 

12/22/2005 15:55 97.4 66.6 

12/22/2005 16:00 97.0 67.9 

12/22/2005 16:05 100.2 66.5 

12/22/2005 16:10 103.4 65.1 

12/22/2005 16:15 103.1 65.0 

12/22/2005 16:20 102.7 64.8 

12/22/2005 16:25 108.1 65.9 
Northshore Mining Line 6 Process Data December 22, 2005 

12/22/2005 16:30 113.6 66.9 

12/22/2005 16:35 109.9 65.3 

12/22/2005 16:40 106.1 63.8 

12/22/2005 16:45 99.7 63.2 

12/22/2005 16:50 93.4 62.7 

12/22/2005 16:55 100.9 62.2 

12/22/2005 17:00 108.5 61.7 

12/22/2005 17:05 106.6 61.2 

12/22/2005 17:10 104.5 60.6 

12/22/2005 17:15 97.8 61.1 

12/22/2005 17:20 91.1 61.5 

12/22/2005 17:25 96.7 62.0 

12/22/2005 17:30 102.5 62.4 

12/22/2005 17:35 99.8 62.3 

12/22/2005 17:40 97.1 62.2 

12/22/2005 17:45 107.1 62.1 

12/22/2005 17:50 117.3 62.1 

12/22/2005 17:55 105.0 62.8 

12/22/2005 18:00 92.5 63.5 

12/22/2005 18:05 88.7 64.2 

12/22/2005 18:10 85.0 64.9 

12/22/2005 18:15 89.8 64.2 

12/22/2005 18:20 94.7 63.4 

12/22/2005 18:25 95.5 62.7 

12/22/2005 18:30 96.3 62.0 

12/22/2005 18:35 88.1 61.2 

12/22/2005 18:40 79.9 60.5 

12/22/2005 18:45 82.6 61.0 

12/22/2005 18:50 85.4 61.5 

12/22/2005 18:55 78.1 62.0 

12/22/2005 19:00 70.7 62.5 

12/22/2005 19:05 89.9 63.0 

12/22/2005 19:10 109.4 63.5 

12/22/2005 19:15 103.6 64.0 

12/22/2005 19:20 97.5 64.5 

12/22/2005 19:25 101.8 65.0 

12/22/2005 19:30 106.3 65.5 

12/22/2005 19:35 103.4 64.3 

12/22/2005 19:40 100.4 63.1 

12/22/2005 19:45 103.8 62.9 

12/22/2005 19:50 107.3 62.7 

12/22/2005 19:55 98.8 62.5 

12/22/2005 20:00 90.2 62.3 

12/22/2005 20:05 97.3 63.9 

12/22/2005 20:10 104.5 65.6 

12/22/2005 20:15 99.1 65,7 

12/22/2005 20:20 93.5 65.9 

12/22/2005 20:25 92.6 66.0 

12/22/2005 20:30 91.8 66.2 

12/22/2005 20:35 98.3 66.4 

12/22/2005 20:40 104.8 66.5 

12/22/2005 20:45 108.8 65.5 
Northshore Mining Line 6 Process Data December 22, 2005 

12/22/2005 20:50 112.8 64.4 

12/22/2005 20:55 105.1 65,7 

12/22/2005 21:00 97.3 67.0 

12/22/2005 21:05 96.9 65.5 

12/22/2005 21:10 96.6 63.8 

12/22/2005 21:15 101.2 64.0 

12/22/2005 21:20 105.7 64.2 

12/22/2005 21:25 94.8 64.3 

12/22/2005 21:30 83.7 64.5 

12/22/2005 21:35 95.7 64.7 

12/22/2005 21:40 107.9 64.9 

12/22/2005 21:45 103.8 65.0 

12/22/2005 21:50 99.6 65.2 

12/22/2005 21:55 100.1 64,3 

12/22/2005 22:00 100.7 63.4 

12/22/2005 22:05 101,3 63.8 

12/22/2005 22:10 101.9 64.2 

12/22/2005 22:15 108.6 64.6 

12/22/2005 22:20 115.2 65.0 

12/22/2005 22:25 117.2 64.6 

12/22/200522:30 119,0 64.2 

12/22/2005 22:35 100.6 63.9 

12/22/2005 22:40 82.0 63.5 

12/22/2005 22:45 41.3 32.1 

12/22/2005 22:50 0.4 0.3 

12/22/2005 22:55 49.0 28.3 

12/22/2005 23:00 98.4 56.9 

12/22/2005 23:05 101.4 58.3 

12/22/2005 23:10 103.9 59.4 

12/22/2005 23:15 98.8 63.1 

12/22/2005 23:20 93.6 66.9 

12/22/2005 23:25 88.4 67.4 

12/22/2005 23:30 83.3 68.0 

12/22/2005 23:35 94.8 66,1 

12/22/2005 23:40 106.4 64.2 

12/22/2005 23:45 100.1 64.3 

12/22/2005 23:50 93.6 64.4 

12/22/2005 23:55 110.2 64.5 

12/23/2005 127.0 64.6 
Appendix G 

Stack Test Plan 
PART II. TESTING REQUIREMENTS 

The table below gives a summary of the pollutants to be tested and test methods. 

Source Description * 

Limitation Basis of 

Pollutant Tested 

Pollutant Tested and 

Applicable Emission 

Limit 

Specific Methods/Procedures 

Required Citation 

Pellet Indurating No Limit — NA 40 CFR Part 60, Appendix A 

Furnaces — Test one Sources being tested 

Waste Gas stack to develop emission EPA Methods 1-4 

from either Furnace 

11 or Furnace 12, 

test one stack from 

factors for use in 

emission inventories. 

Method 7E: 3 1-hr runs 

Testing on Fee 11 or Fce 12 and 

Furnace 6 

Fce 11 (SV104-105) 

Fce 12 (SV114-115) 

Fee 6 will include one airflow 

rate determined on the other 

associated waste gas stack(s) at 

that furnace, 

Fee 6 (SV261-263) 

*All sources eligible for testing are listed and the ones that will be tested will be dependent upon the process 

operating availability during the week of December 19, 2005. 

PART III. OPERATING CONDITIONS 

The table below includes a summary of the industrial processes and related control equipment. 

Process Equipment Description for Units to be tested: 

EU104, EU114, EU262 — Pellet Indurating Furnaces 11, 12 and 6, controlled by Electrostatic Precipitators 

(CE104-105, CE114-115, CE261-263) 

Process Equipment Parameter Monitoring During Performance Test: 

EU104, EU114, EU262 — greenball feed rate and fired pellet production rate (long tons/hr), heat input 

(MMBtu/hr) — natural gas will be fired during the test: maximum rate of 250 long tons/hr for Furnace 11 or 

Furnace 12, maximum rate of 110 long tons/hr for Furnace 6 

Control Equipment Operating Parameter During Test: 

CE104-105, CE114-115, CE261-263- WWESP are in place for PM and SO2 control, but no controls are present 

or required for NOx. 

PART IV. TEST METHODS 

The following is a description of the number of test runs, length of test runs, and sampling rate for each pollutant. 

Test methods apply to the proposed sample location. 

A. EPA Method 1 for the location of test ports and traverse points. One determination per test location. 

2 
B. EPA Method 2 for stack gas velocity and volumetric flow rate. One determination concurrent with each 

Method 7E sample test run. One determination will be made on the other Waste Gas stack(s) associated 

with the furnace being tested. 

C. EPA Method 3A to determine stack gas composition and dry molecular weight. Concurrent with each 

Method 7E test run. The associated waste gas stacks having airflow rates determined, will assume that the 

gas composition is the same as the stack with the NOx emissions test. 

D. EPA Method 4 for the determination of stack gas moisture content. One determination concurrent with 

each Method 7E test run. 

E. EPA Method 7E for the determination of nitrogen oxides. Three 60-minute test runs per test. 

PART V. CEMS 

There are no CEMS located at the emission points to be tested. 

PART VI. OTHER 

The NOx determinations will be reported in units of lb/hr and lb/long ton of pellets. The other airflow 

determination(s) of the other associated waste gas stacks will be reported. The NOx determination on the one waste 

gas stack will be assumed to be equal to the emissions from the other associated waste gas stacks. The airflow rates 

on the other associated waste gas stacks are determined to only demonstrate that the airflow rates are similar, within 

5% of the stack being tested, and these airflow rates will not used in calculating the NOx emissions. 

Testing schedule: Week of January 31 — February 3, 2005 

Day Description 

Tuesday 

December 20, 2005 Travel to facility and set up test equipment 

Wednesday 

December 21, 2005 

Test (morning) 

Furnace 11 or 12 Waste Gas Stack (test 1 of 2 stacks at one furnace) 

Test (afternoon) 

Furnace 6 Hood Exhaust — Waste Gas Stack (test 1 of 3 stacks) 

Note: Scheduled test times may change depending on process operating schedule. 

Test Report: 

3 
One complete test report (one hard copy) will be submitted within 45 days of the last test performance date. A CDROM copy of the report in *.pdf format (as an alternative to microfiche) will be submitted within 105 days of the last 

test performance date. 

Submittal Address: Mr. Andrew Place 

Performance Test Coordinator 

Minnesota Pollution Control Agency 

520 Lafayette Road 

St. Paul, Minnesota 55155-4194 

4 
Performance Test Plan Approval 

Minnesota 

•Pollution. . 

•Control 

Agency 

.Minnesota'-PollUtiOn -Centre! A gency 

o Lafayette *LINT. Saint Paul; WIN -:515-41.,4. (651) . 296-6300 

.wwv..pea:tate.tnn:us : , - 

AQ#27A 

Facility Name: Northshore Mining 

Facility Contact: Scott Gischia 

Address: 10 Outer Drive, Silver Bay, MN 55614 

Phone: (218) 226-6076 

,Emission Unit(s): Furnace 11 or 12 and Furnace 6 

Scheduled For: December 21, 2005 at your Facility located in Silver Bay, Minnesota. 

Your test plan submitted on December 9, 2005, and discussed on December 15, 2005, has been approved 

by the Minnesota Pollution Control Agency (1V1PCA) as follows: 

• Shortened test notification approved 

E Test plan approved without modification 

1=1 Test plan approved with the following provisions: 

One stack from Furnace 11 or 12 and one stack from Furnace 6 to be tested. Air flows will 

be calculated determined for all stacks. 

Include in the final test report the full reference method data record (strip chart and/or 

datalogger output) used to calculate emissions. The data record should include calibration 

values for any instrumental analyzer used for emissions compliance testing. 

Normal Operating conditions listed in test plan. 

Attached Forms: 

El Operating Data Summary- Combustion 

Sources 

Operating Data Summary- Process Sources 

El Certifications Form 

Operating Data Summary- Waste 

Combustors 

El Operating Data Summary- Asphalt Plants 

Microfiche/CD-ROM Submittal Form 

Note: Forms are also available at: www.pca.state.mn.us/air/performancetest.html 

Approved by: Date: December 15, 2005 

Andrew Place 

Performance Test Coordinator 

Compliance and Enforcement Section 

Industrial Division 

Please contact me at (651) 296-7169 if you have any questions regarding this approval. 

Please be aware that enforcement action will be taken for performance test failures indicating emissions above applicable limits 

(excess actual emissions to the environment). Failures commonly result in assessment of a monetary penalty. Upon the first test 

failure, the Company should take immediate measures to minimize emissions. The measures taken should be documented, as 

they will become part of the record of corrective actions. 
Hard Copy Performance Test Reports and Microfiche or CD Copy submittals will be addressed to: Compliance Tracking 

Coordinator, Compliance and Enforcement Unit, Industrial Division, Minnesota Pollution Control Agency, 520 Lafayette Road 

North, St. Paul, Minnesota 55155-4194 

cc: Mark Petersen, Barr Engineering, Edina (email) 

Bob Beresford, MPCA, Duluth (email) 

AQ Correspondence File No. 27A 
Appendix H 

Project Participants 
Project Participants 

Northshore Mining Company 

Scott Gischia — Environmental Engineer 

Minnesota Pollution Control Agency 

Andrew Place — Performance Test Coordinator 

Bob Beresford — Pollution Control Specialist 

Barr Engineering Company 

Tim Russell — Vice President / Chemical Engineer 

Mark Petersen — Project Manager 

Pete Rossmiller — Sr. Air Quality Technician / Team Leader 

Dan Koschak — Air Quality Technician