### Name: Bert Valenkamph

Title: Director of Station Chemistry & Envir Company: Northern Indiana Public Service Comp Sign Date: Name: Carl Vineyard Title: Utility MACT Program Manager Company: Grace Consulting, Inc. Sign Date: 7/1/2010 Permitted Facility Representative / Date Testing Company Representative / Date 

## NIPSCO, Michigan City Final Test Report for

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

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### NIPSCO, Michigan City

Facility Information: Michigan City Generating Station Northern Indiana Public Service Company
101 Wabash Street Michigan City IN 46360 Contact: Bert Valenkamph Phone: 219-477-6265 Fax: 219-477-6269 Email: bcvalenkamph@nisource.com Testing Company: Grace Consulting, Inc.
510 Dickson Street

Wellington OH 44090 Contact: Carl Vineyard Phone: 440-647-6672 Fax: 440-647-6673 Email: carlvineyard@aol.com

Air Permit Number: 997 Permitted Source ID/Name: Michigan City 12 Permitted Maximum Process Rate: Max. Normal Operation Process Rate: Target Process Test Rate

Description of the source (including control equipment). Please see the attachments for source or process flow diagram: Coal-fired, wet bottom cyclone boiler, with over-fire air Nox combustion control, with a cold side electrostatic precipitator, without flue gas conditioning, for control of particulate matter, and a selective catalytic reduction system for post-combustion Nox control. Industry/SCC/NAIS 221112

Sampling Location Information:

Test Parameter Information: AFS #: 1809100021 FRS #: 110000592154

SCC / Description 10100223 External Combustion Boilers - Electric Generation - Bituminous/Subbituminous Coal - Cyclone Furnace (Subbituminous Coal)

The following state and federal regulations that apply to the proposed testing:

Location Round

Duct Diam. Distance from upstream dist. Distance from

downstream dist. Number of

Traverse Ports Equiv. Diam Min.Travers Points Rect. Duct Length /Width Unit 12 Stack 251.04 1688 3528 4 0 12 0 0

Target Parameter Test Method Number of

Test Runs Test Run

Duration Sample

Points Comments Location Filterable Particulate OTM - 27/28 3 120 0 Run 1 360 min, Runs 2 & 3 were 120 mins. See repsonce to question 8. Unit 12 Stack

Filterable PM2.5 OTM - 27/28 3 120 0 Run 1 360 min, Runs 2 & 3 were 120 mins. See repsonce to question 8. Unit 12 Stack



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### NIPSCO, Michigan City

The following describes any modifications and/or deviations to the applicable test methods. If alternative methods were requested, see the attachments for documentation of request AND approval, including dates. OTM 27/28: The cyclone for PM 2.5 was plugged after 3 hours and a second cyclone and filter was used to complete the test run. This was discussed with Peter Westlin of USEPA and a shorter sample time that would allow the test to be completed with one cyclone and filter set was approved per Westlin. This took place on 3/10/2010. This is consistant with the EPA's answer to FAQ Test 022, where it states "the 3.4 m3 of sample is the more critical of the two sampling duration factors in establishing conditions that would provide us with the ability to determine detectable levels of metals and PM fine emissions". Our test durations are commented in Question 7A of this ERT.

Total Particulate OTM - 27/28 3 120 0 Run 1 360 min, Runs 2 & 3 were 120 mins. See repsonce to question 8. Unit 12 Stack

Total PM2.5 OTM - 27/28 3 120 0 Run 1 360 min, Runs 2 & 3 were 120 mins. See repsonce to question 8. Unit 12 Stack

Inorganic (Aqueous)

Condensible Part. OTM - 27/28 3 120 0 Run 1 360 min, Runs 2 & 3 were 120 mins. See repsonce to question 8. Unit 12 Stack

Organic Condensible

Particulate OTM - 27/28 3 120 0 Run 1 360 min, Runs 2 & 3 were 120 mins. See repsonce to question 8. Unit 12 Stack

Beryllium Method 29 3 240 0 Unit 12 Stack Arsenic Method 29 3 240 0 Unit 12 Stack Filterable Particulate Method 29 3 240 0 Unit 12 Stack Cadmium Method 29 3 240 0 Unit 12 Stack Chromium Method 29 3 240 0 Unit 12 Stack Cobalt Method 29 3 240 0 Unit 12 Stack Lead Method 29 3 240 0 Unit 12 Stack Manganese Method 29 3 240 0 Unit 12 Stack Nickel Method 29 3 240 0 Unit 12 Stack Phosphorus (yellow or white) Method 29 3 240 0 Unit 12 Stack Selenium Method 29 3 240 0 Unit 12 Stack Antimony Method 29 3 240 0 Unit 12 Stack Co2 Method 3A CO2 3 240 0 Unit 12 Stack O2 Method 3A O2 3 240 0 Unit 12 Stack



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### NIPSCO, Michigan City

Sampling / Stack Data Results Summary



### Location Unit 12 Stack - Method 29 Average Run Number 1 2 3
Test Date 3/10/2010 3/11/2010 3/11/2010 Run Start Time 8:45:00 AM 6:35:00 AM 11:35:00 AM

Run Finish Time 12:40:00 PM 10:30:00 AM 3:30:00 PM

Net Run Time, minutes 240 240 240 Dry Gas Meter Volume Sampled, dscf 176.711 179.786 174.890 177.129 Moisture Content of Stack Gas, % 9.86 9.42 9.79 9.690 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Carbon Dioxide, % 11.9 11.9 11.9 11.900 Oxygen, % 7.7 7.4 7.5 7.533 Average Stack Gas Temperature, °F 314.83 309.13 318.73 314.230 Dry Volumetric Flow Rate, dry scfm 1,223,184.8 1,249,024.3 1,211,453.1 1,227,887.40 0 Actual Wet Volumetric Flue Gas Flow Rate, acfm 2,086,904.1 2,040,707.2 2,012,246.6 2,046,619.30 0 Percent Isokinetic of Sampling Rate, % 104.0 103.6 103.9 103.833 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000
Fw 10640 10640 10640 10,640.000
Fc 1800 1800 1800 1,800.000



### Location Unit 12 Stack - Method 3A CO2 Average Run Number
Test Date Run Start Time Run Finish Time Carbon Dioxide, % Oxygen, % Dry Volumetric Flow Rate, dry scfm F-Factor, dscfm/MMBtu @ %O2 Moisture, % Fuel Type
Fw
Fc



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### NIPSCO, Michigan City

Location Unit 12 Stack - Method 3A O2 Average Run Number
Test Date Run Start Time
Run Finish Time Carbon Dioxide, % Oxygen, % Dry Volumetric Flow Rate, dry scfm F-Factor, dscfm/MMBtu @ %O2 Moisture, % Fuel Type
Fw
Fc



### Location Unit 12 Stack - OTM - 27/28 Average Run Number
Test Date Run Start Time
Run Finish Time Net Run Time, minutes Dry Gas Meter Volume Sampled, dscf Moisture Content of Stack Gas, % Moisture Saturation at Stack Gas Temperature, % Carbon Dioxide, % Oxygen, % Average Stack Gas Temperature, °F Dry Volumetric Flow Rate, dry scfm Actual Wet Volumetric Flue Gas Flow Rate, acfm Percent Isokinetic of Sampling Rate, % F-Factor, dscfm/MMBtu @ %O2
Fw
Fc



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### NIPSCO, Michigan City

Emissions Summary



### Location: Unit 12 Stack - Method 29 Compound: Antimony Average RunNumber 1 2 3 Mass_mg 0.01025 0.01065 0.01305 0.011 lb/mmBtuO2 1.98E-06 1.98E-06 2.51E-06 0.000 

### Compound: Arsenic Average RunNumber 1 2 3 Mass_mg 0.11889 0.11488 0.14089 0.125 lb/mmBtuO2 2.30E-05 2.13E-05 2.71E-05 0.000 

### Compound: Beryllium Average RunNumber 1 2 3 Mass_mg 0.00466 0.00416 0.00516 0.005 lb/mmBtuO2 9.00E-07 7.72E-07 9.92E-07 0.000 

### Compound: Cadmium Average RunNumber 1 2 3 Mass_mg 0.001105 0.001205 0.001055 0.001 lb/mmBtuO2 2.13E-07 2.24E-07 2.03E-07 0.000 

### Compound: Chromium Average RunNumber 1 2 3 Mass_mg 0.1072 0.0981 0.141 0.115 lb/mmBtuO2 2.07E-05 1.82E-05 2.71E-05 0.000 

### Compound: Cobalt Average RunNumber 1 2 3 Mass_mg 0.01738 0.0158 0.0188 0.017 lb/mmBtuO2 3.36E-06 2.93E-06 3.61E-06 0.000 

### Compound: Filterable Particulate Average RunNumber 1 2 3 Mass_mg 543.7 508.9 524.3 525.633 lb/mmBtuO2 1.05E-01 9.45E-02 1.01E-01 0.100 

### Compound: Lead Average RunNumber 1 2 3 Mass_mg 0.0534 0.0463 0.0567 0.052 lb/mmBtuO2 1.03E-05 8.60E-06 1.09E-05 0.000 

### Compound: Manganese Average



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### NIPSCO, Michigan City

RunNumber 1 2 3 Mass_mg 0.115 0.1026 0.1264 0.115 lb/mmBtuO2 2.22E-05 1.90E-05 2.43E-05 0.000 

### Compound: Nickel Average RunNumber 1 2 3 Mass_mg 0.0939 0.1392 0.0946 0.109 lb/mmBtuO2 1.81E-05 2.58E-05 1.82E-05 0.000 

### Compound: Phosphorus (yellow or white) Average RunNumber 1 2 3 Mass_mg 5.6348 5.0986 6.0796 5.604 lb/mmBtuO2 1.09E-03 9.47E-04 1.17E-03 0.001 

### Compound: Selenium Average RunNumber 1 2 3 Mass_mg 0.1611 0.0856 0.1263 0.124 lb/mmBtuO2 3.11E-05 1.59E-05 2.43E-05 0.000



### Location: Unit 12 Stack - OTM - 27/28 

### Compound: Filterable Particulate Average RunNumber 1 2 3 Mass_mg 400.1 118.3 147.6 222.000 lb/mmBtuO2 1.02E-01 8.87E-02 1.10E-01 0.100 

### Compound: Filterable PM2.5 Average RunNumber 1 2 3 Mass_mg 123.1 47.6 51 73.900 lb/mmBtuO2 3.15E-02 3.57E-02 3.81E-02 0.035 

### Compound: Inorganic (Aqueous) Condensible Pa Average RunNumber 1 2 3 Mass_mg 232.5 88 87.8 136.100 lb/mmBtuO2 5.95E-02 6.60E-02 6.57E-02 0.064 

### Compound: Organic Condensible Particulate Average RunNumber 1 2 3 Mass_mg 33 7 6.5 15.500 lb/mmBtuO2 8.44E-03 5.25E-03 4.86E-03 0.006 

### Compound: Total Particulate Average RunNumber 1 2 3 Mass_mg 665.6 213.3 241.9 373.600 lb/mmBtuO2 1.70E-01 1.60E-01 1.81E-01 0.170



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### NIPSCO, Michigan City

Process Run Data Compound: Total PM2.5 Average RunNumber 1 2 3 Mass_mg 388.6 142.6 145.3 225.500 lb/mmBtuO2 9.94E-02 1.07E-01 1.09E-01 0.105



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### NIPSCO, Michigan City

Process Run Data

APCD Run Data

Process Lab Run Data 

### Run Name Value UOM Comments Target Value 1 Heat Input 4350 Million Btus/million BTU using CO2 4300


### 2 Heat Input 4318 Million Btus/million BTU using CO2 4300
3 Heat Input 4325 Million Btus/million BTU using CO2 4300
1 Coal Flow 395 Klbs/hr 395


### 2 Coal Flow 395 Klbs/hr 395
3 Coal Flow 396 Klbs/hr 395
1 Steam Output 3469 klbssteam/hr 3500


### 2 Steam Output 3422 klbssteam/hr 3500
3 Steam Output 3514 klbssteam/hr 3500



### Run Name Value UOM Comments Target Value 1 OVERFIRE AIR 0.604 lb/mmBtu 0.6


### 2 OVERFIRE AIR 0.62 lb/mmBtu 0.6
3 OVERFIRE AIR 0.599 lb/mmBtu 0.6


### 1 SCR (SELECTIVE CATALYTIC REDUCTION) 6 GPM 6
2 SCR (SELECTIVE CATALYTIC REDUCTION) 5.6 GPM 6
3 SCR (SELECTIVE CATALYTIC REDUCTION) 6.2 GPM 6


### 1 ELECTROSTATIC PRECIPITATOR 39.4 KW 40
2 ELECTROSTATIC PRECIPITATOR 43.3 KW 40
3 ELECTROSTATIC PRECIPITATOR 38.7 KW 40

Run Name Value UOM Comments 

### 1 0

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### NIPSCO, Michigan City

Sampling / Stack Data Results Detail



### Location Unit 12 Stack - Method 29 Average Run Number 1 2 3 Test Date 3/10/2010 3/11/2010 3/11/2010 Run Start Time 8:45:00 AM 6:35:00 AM 11:35:00 AM Run Finish Time 12:40:00 PM 10:30:00 AM 3:30:00 PM Net Traversing Points 48 48 48 Net Run Time, minutes 240 240 240 Nozzle Diameter, inches 0.191 0.191 0.191 0.191 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 0.994 0.994 0.994 0.994 Barometric Pressure, inches of Mercury 28.7 29.6 29.6 29.300 Average Orifice Meter Differential, inches H2O 2.15 2.10 2.03 2.093 Dry Gas Meter Volume Sampled, cubic feet 191.650 189.191 185.947 188.929 Average Dry Gas Meter Temperature, °F 89.00 89.23 94.83 91.020 Dry Gas Meter Volume Sampled, dscf 176.711 179.786 174.890 177.129 Total Moisture Liquid collected, g 410.7 397.37 403.18 403.750 Volume of Water Vapor, standard cubic feet 19.33 18.70 18.98 19.003 Moisture Content of Stack Gas, % 9.86 9.42 9.79 9.690 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Dry Mole Fraction 0.9014 0.9058 0.9021 0.903 Carbon Dioxide, % 11.9 11.9 11.9 11.900 Oxygen, % 7.7 7.4 7.5 7.533 Carbon Monoxide & Nitrogen, % 80.4 80.7 80.6 80.567 Fuel Factor 1.11 1.13 1.13 Dry Molecular Weight, lb/lb-Mole 30.21 30.20 30.20 30.203 Wet Molecular weight, lb/lb-Mole 29.01 29.05 29.01 29.023 Flue Gas Static Pressure, inches of H2O -2.1 -2 -2 -2.033 Absolute Flue Gas Pressure, inches of Mercury 28.55 29.45 29.45 29.150 Average Stack Gas Temperature, °F 314.83 309.13 318.73 314.230 Average Velocity Head, inches of H2O 2.1223967973 1092 2.112091847

88487 2.025095983

38454 2.087
Average Stack Gas Velocity, feet/second 101.19 98.95 97.57 99.237 Stack Cross-Sectional Area, square feet 343.727 343.727 343.727 343.727 Dry Volumetric Flow Rate, dry scfm 1,223,184.8 1,249,024.3 1,211,453.1 1,227,887.4 00 Actual Wet Volumetric Flue Gas Flow Rate, acfm 2,086,904.1 2,040,707.2 2,012,246.6 2,046,619.3 00 Percent Isokinetic of Sampling Rate, % 104.0 103.6 103.9 103.833 Percent Excess Air, % 56.9 53.2 54.4 54.833 F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000 Round Duct Diameter, inches 251.04 251.04 251.04 Rectangular Duct Width, inches 0 0 0 Rectangular Duct Length, inches 0 0 0 Fw 10640 10640 10640 10,640.000 Fc 1800 1800 1800 1,800.000



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### NIPSCO, Michigan City

Location Unit 12 Stack - Method 3A CO2 Average Run Number Test Date Run Start Time Run Finish Time Carbon Dioxide, % Oxygen, % Fuel Factor Dry Volumetric Flow Rate, dry scfm F-Factor, dscfm/MMBtu @ %O2 Moisture, % Analyzer Make Analyzer Model Analyzer Serial Number Operating Range Operating Units No. Readings/Avg. Calibration Set Calibration Pre Zero Cylinder ID Calibration Pre Zero Cylinder Instrument Response Calibration Pre Zero Cylinder Bias Calibration Pre Zero Cylinder Drift Calibration Pre High Cylinder ID Calibration Pre High Cylinder Instrument Response Calibration Pre High Cylinder Bias Calibration Pre High Cylinder Drift Calibration Post Zero Cylinder ID Calibration Post Zero Cylinder Instrument Response Calibration Post Zero Cylinder Bias Calibration Post Zero Cylinder Drift Calibration Post High Cylinder ID Calibration Post High Cylinder Instrument Response Calibration Post High Cylinder Bias Calibration Post High Cylinder Drift Cavg Cavg Units Cgas Cgas Units Fuel Type Fw Fc Cgasw Cgasw Units



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### NIPSCO, Michigan City

Location Unit 12 Stack - Method 3A O2 Average Run Number Test Date Run Start Time Run Finish Time Carbon Dioxide, % Oxygen, % Fuel Factor Dry Volumetric Flow Rate, dry scfm F-Factor, dscfm/MMBtu @ %O2 Moisture, % Analyzer Make Analyzer Model Analyzer Serial Number Operating Range Operating Units No. Readings/Avg. Calibration Set Calibration Pre Zero Cylinder ID Calibration Pre Zero Cylinder Instrument Response Calibration Pre Zero Cylinder Bias Calibration Pre Zero Cylinder Drift Calibration Pre High Cylinder ID Calibration Pre High Cylinder Instrument Response Calibration Pre High Cylinder Bias Calibration Pre High Cylinder Drift Calibration Post Zero Cylinder ID Calibration Post Zero Cylinder Instrument Response Calibration Post Zero Cylinder Bias Calibration Post Zero Cylinder Drift Calibration Post High Cylinder ID Calibration Post High Cylinder Instrument Response Calibration Post High Cylinder Bias Calibration Post High Cylinder Drift Cavg Cavg Units Cgas Cgas Units Fuel Type Fw Fc Cgasw Cgasw Units



### Monday, February 07, 2011 Page 12 of 13

### NIPSCO, Michigan City

Location Unit 12 Stack - OTM - 27/28 Average Run Number Test Date Run Start Time Run Finish Time Net Traversing Points Net Run Time, minutes Nozzle Diameter, inches Pitot Tube Coefficient Dry Gas Meter Calibration Factor Barometric Pressure, inches of Mercury Average Orifice Meter Differential, inches H2O Dry Gas Meter Volume Sampled, cubic feet Average Dry Gas Meter Temperature, °F Dry Gas Meter Volume Sampled, dscf Total Moisture Liquid collected, g Volume of Water Vapor, standard cubic feet Moisture Content of Stack Gas, % Moisture Saturation at Stack Gas Temperature, % Dry Mole Fraction Carbon Dioxide, % Oxygen, % Carbon Monoxide & Nitrogen, % Fuel Factor Dry Molecular Weight, lb/lb-Mole Wet Molecular weight, lb/lb-Mole Flue Gas Static Pressure, inches of H2O Absolute Flue Gas Pressure, inches of Mercury Average Stack Gas Temperature, °F Average Velocity Head, inches of H2O Average Stack Gas Velocity, feet/second Stack Cross-Sectional Area, square feet Dry Volumetric Flow Rate, dry scfm Actual Wet Volumetric Flue Gas Flow Rate, acfm Percent Isokinetic of Sampling Rate, % Percent Excess Air, % F-Factor, dscfm/MMBtu @ %O2 Round Duct Diameter, inches Rectangular Duct Width, inches Rectangular Duct Length, inches Fw Fc



### Monday, February 07, 2011 Page 13 of 13