### Name: Mr. Patrick L. Pope

Title: Vice President & Chief Operating Offi Company: Nebraska Public Power District Sign Date: 6/17/2010 Name: Mr. Jeremy Miller Title: Lead Field Engineer Company: GE International, Inc. Sign Date: 6/17/2010 Permitted Facility Representative / Date Testing Company Representative / Date 

## Gerald Gentleman Station 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.

Wednesday, February 23, 2011 Page 1 of 12

### Gerald Gentleman Station
6/17/2010 Facility Information:
NPPD Gerald Gentleman Station 6089 South Highway 25

Sutherland NE 69165 Contact: Tom Brunz Phone: Fax: Email: Testing Company: General Electric International Inc. (GEII)
888 Industrial Blvd

Elmhurst IL 60126 Contact: Jeff Daniels Phone: 630-530-6655 Fax: Email:

Air Permit Number: N/A Permitted Source ID/Name: NPPD Gerald Gentleman Station 34385 Permitted Maximum Process Rate: 7538 mmbtu/hr 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: Fabric Filter Baghouse Industry/SCC/NAIS 22112

Sampling Location Information:

Test Parameter Information: AFS #: 3111100019 FRS #: 110000606522

SCC / Description 10100221 External Combustion Boilers - Electric Generation - Bituminous/Subbituminous Coal - Pulverized Coal: Wet Bottom (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 2 358.2 1754 2395 4 0 0 0 0

Target Parameter Test Method Number of

Test Runs Test Run

Duration Sample

Points Comments Location Filterable Particulate OTM - 27/28 3 240 0 minimum 120 cubic foot volume not met Unit 2
Organic Condensible

Particulate OTM - 27/28 3 240 0 minimum 120 cubic foot volume not met Unit 2

Total PM2.5 OTM - 27/28 3 240 0 minimum 120 cubic foot volume not met Unit 2

Filterable PM2.5 OTM - 27/28 3 240 0 minimum 120 cubic foot volume not met Unit 2



### Wednesday, February 23, 2011 Page 2 of 12

### Gerald Gentleman Station
6/17/2010

The following describes any modifications and/or deviations to the applicable test methods. If alternative methods were requested, see the attachments for documentation of request AND approval, including dates. During the mercury and non-mercury metallic HAP testing, GEII did not meet the minimum requirement of 3.4 cubic meters of sample gas collected for the OTM-027 and OTM-028 testing. The sample volume collected for the three 240-minute runs averaged 2.5 cubic meters (89 cubic feet), thus missing the stated requirement by 26 percent. Mr. Peter Westlin of the EPA’s measurement policy group agreed that the data from these runs satisfied the ICR requirements Total Particulate OTM - 27/28 3 240 0 minimum 120 cubic foot volume not met Unit 2
Inorganic (Aqueous)

Condensible Part. OTM - 27/28 3 240 0 minimum 120 cubic foot volume not met Unit 2

Chromium Method 29 3 240 0 Unit 2 Selenium Method 29 3 240 0 Unit 2 Nickel Method 29 3 240 0 Unit 2 Manganese Method 29 3 240 0 Unit 2 Lead Method 29 3 240 0 Unit 2 Antimony Method 29 3 240 0 Unit 2 Cobalt Method 29 3 240 0 Unit 2 Beryllium Method 29 3 240 0 Unit 2 Cadmium Method 29 3 240 0 Unit 2 Arsenic Method 29 3 240 0 Unit 2 Co2 Method 3A CO2 3 360 0 Unit 2 O2 Method 3A O2 3 360 0 Unit 2 Filterable Particulate Method 5 3 240 0 Unit 2



### Wednesday, February 23, 2011 Page 3 of 12

### Gerald Gentleman Station
6/17/2010 Sampling / Stack Data Results Summary



### Location Unit 2 - Method 29 Average Run Number 1 2 3
Test Date 3/17/2010 3/17/2010 3/18/2010 Run Start Time 7:45:00 AM 3:00:00 PM 7:25:00 AM Run Finish Time 1:12:00 PM 8:25:00 PM 12:35:00 PM Net Run Time, minutes 240 240 240 Dry Gas Meter Volume Sampled, dscf 111.650 109.959 106.505 109.371 Moisture Content of Stack Gas, % 12.75 10.75 10.70 11.400 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Carbon Dioxide, % 12.8 12.7 13.2 12.900 Oxygen, % 6.8 6.9 6.7 6.800 Average Stack Gas Temperature, °F 291.00 283.98 274.27 283.083 Dry Volumetric Flow Rate, dry scfm 1,568,045.9 1,574,421.9 1,535,418.5 1,559,295.43 3 Actual Wet Volumetric Flue Gas Flow Rate, acfm 2,904,758.9 2,824,561.0 2,761,158.5 2,830,159.46 7 Percent Isokinetic of Sampling Rate, % 103.3 101.3 100.6 101.733 F-Factor, dscfm/MMBtu @ %O2 9787 9787 9869 9,814.333
Fw 10640 10640 10640 10,640.000
Fc 1800 1800 1800 1,800.000



### Wednesday, February 23, 2011 Page 4 of 12

### Gerald Gentleman Station
6/17/2010
Location Unit 2 - Method 5 Average Run Number
Test Date Run Start Time
Run Finish Time Net Run Time, minutes Dry Gas Meter Volume Sampled, dscf Moisture Content of Stack Gas, % Moisture Saturation at Stack Gas Temperature, % Carbon Dioxide, % Oxygen, % Average Stack Gas Temperature, °F Dry Volumetric Flow Rate, dry scfm Actual Wet Volumetric Flue Gas Flow Rate, acfm Percent Isokinetic of Sampling Rate, % F-Factor, dscfm/MMBtu @ %O2
Fw
Fc



### Location Unit 2 - 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



### Wednesday, February 23, 2011 Page 5 of 12

### Gerald Gentleman Station
6/17/2010 Emissions Summary



### Location: Unit 2 - Method 29 Compound: Antimony Average RunNumber 1 2 3 Mass_mg 0.0018 0.0018 0.0018 0.002 lb/mmBtuO2 5.16E-07 5.27E-07 5.41E-07 0.000 

### Compound: Arsenic Average RunNumber 1 2 3 Mass_mg 0.0018 0.0018 0.0018 0.002 lb/mmBtuO2 5.16E-07 5.27E-07 5.41E-07 0.000 

### Compound: Beryllium Average RunNumber 1 2 3 Mass_mg 0.00045 0.00045 0.00045 0.000 lb/mmBtuO2 1.29E-07 1.32E-07 1.35E-07 0.000 

### Compound: Cadmium Average RunNumber 1 2 3 Mass_mg 0.001 0.00371 0.00045 0.002 lb/mmBtuO2 2.86E-07 1.09E-06 1.35E-07 0.000 

### Compound: Chromium Average RunNumber 1 2 3 Mass_mg 0.00217 0.00135 0.00144 0.002 lb/mmBtuO2 6.22E-07 3.95E-07 4.33E-07 0.000 

### Compound: Cobalt Average RunNumber 1 2 3 Mass_mg 0.00045 0.00193 0.00045 0.001 lb/mmBtuO2 1.29E-07 5.65E-07 1.35E-07 0.000 

### Compound: Lead Average RunNumber 1 2 3 Mass_mg 0.0009 0.0009 0.0009 0.001 lb/mmBtuO2 2.58E-07 2.64E-07 2.71E-07 0.000 

### Compound: Manganese Average RunNumber 1 2 3 Mass_mg 0.0028 0.0028 0.0028 0.003 lb/mmBtuO2 8.02E-07 8.20E-07 8.42E-07 0.000 

### Compound: Nickel Average



### Wednesday, February 23, 2011 Page 6 of 12

### Gerald Gentleman Station
6/17/2010
RunNumber 1 2 3 Mass_mg 0.0027 0.0023 0.0023 0.002 lb/mmBtuO2 7.73E-07 6.74E-07 6.92E-07 0.000 

### Compound: Selenium Average RunNumber 1 2 3 Mass_mg 0.0045 0.0045 0.0045 0.005 lb/mmBtuO2 1.29E-06 1.32E-06 1.35E-06 0.000



### Location: Unit 2 - Method 5 Compound: Filterable Particulate Average RunNumber 1 2 3 Mass_mg 5.1 2.1 1.4 2.867 lb/mmBtuO2 1.48E-03 6.15E-04 4.21E-04 0.001



### Location: Unit 2 - OTM - 27/28 

### Compound: Filterable Particulate Average RunNumber 1 2 3 Mass_mg 2.5 1.5 1.5 1.833 lb/mmBtuO2 1.04E-03 6.51E-04 6.37E-04 0.001 

### Compound: Filterable PM2.5 Average RunNumber 1 2 3 Mass_mg 2 1 1 1.333 lb/mmBtuO2 8.31E-04 4.34E-04 4.25E-04 0.001 

### Compound: Inorganic (Aqueous) Condensible Pa Average RunNumber 1 2 3 Mass_mg 33.3 9.4 88.8 43.833 lb/mmBtuO2 1.38E-02 4.08E-03 3.77E-02 0.019 

### Compound: Organic Condensible Particulate Average RunNumber 1 2 3 Mass_mg 3.4 1.3 2.1 2.267 lb/mmBtuO2 1.41E-03 5.64E-04 8.92E-04 0.001 

### Compound: Total Particulate Average RunNumber 1 2 3 Mass_mg 39.2 12.2 92.4 47.933 lb/mmBtuO2 1.63E-02 5.29E-03 3.92E-02 0.020 

### Compound: Total PM2.5 Average RunNumber 1 2 3 Mass_mg 38.7 11.7 91.9 47.433 lb/mmBtuO2 1.61E-02 5.08E-03 3.90E-02 0.020


### Wednesday, February 23, 2011 Page 7 of 12

### Gerald Gentleman Station
6/17/2010

Process Run Data



### Wednesday, February 23, 2011 Page 8 of 12

### Gerald Gentleman Station
6/17/2010 Process Run Data

APCD Run Data

Process Lab Run Data 

### Run Name Value UOM Comments Target Value 1 Coal Flow 0.381 1000 ton/hr 0


### 1 Gross Megawatts 673 MW 0
2 Coal Flow 0.364 1000 ton/hr 0
2 Gross Megawatts 647 MW 0


### 3 Coal Flow 0.358 1000 ton/hr 0
3 Gross Megawatts 647 MW 0



### Run Name Value UOM Comments Target Value 1 BAGHOUSE 0 0



### Wednesday, February 23, 2011 Page 9 of 12

### Gerald Gentleman Station
6/17/2010 Sampling / Stack Data Results Detail



### Location Unit 2 - Method 29 Average Run Number 1 2 3 Test Date 3/17/2010 3/17/2010 3/18/2010 Run Start Time 7:45:00 AM 3:00:00 PM 7:25:00 AM Run Finish Time 1:12:00 PM 8:25:00 PM 12:35:00 PM Net Traversing Points 48 48 48 Net Run Time, minutes 240 240 240 Nozzle Diameter, inches 0.192 0.192 0.192 0.192 Pitot Tube Coefficient 0.84 0.84 0.84 0.840 Dry Gas Meter Calibration Factor 0.997 0.997 0.997 0.997 Barometric Pressure, inches of Mercury 26.39 26.39 25.98 26.253 Average Orifice Meter Differential, inches H2O 0.78 0.77 0.72 0.757 Dry Gas Meter Volume Sampled, cubic feet 131.712 131.392 127.992 130.365 Average Dry Gas Meter Temperature, °F 88.93 96.00 90.43 91.787 Dry Gas Meter Volume Sampled, dscf 111.650 109.959 106.505 109.371 Total Moisture Liquid collected, g 346.4 281.6 271.1 299.700 Volume of Water Vapor, standard cubic feet 16.31 13.25 12.76 14.107 Moisture Content of Stack Gas, % 12.75 10.75 10.70 11.400 Moisture Saturation at Stack Gas Temperature, % 100.00 100.00 100.00 100.000 Dry Mole Fraction 0.8725 0.8925 0.893 0.886 Carbon Dioxide, % 12.8 12.7 13.2 12.900 Oxygen, % 6.8 6.9 6.7 6.800 Carbon Monoxide & Nitrogen, % 80.4 80.4 80.1 80.300 Fuel Factor 1.10 1.10 1.08 Dry Molecular Weight, lb/lb-Mole 30.32 30.31 30.38 30.337 Wet Molecular weight, lb/lb-Mole 28.75 28.99 29.06 28.933 Flue Gas Static Pressure, inches of H2O -0.8 -0.8 -0.9 -0.833 Absolute Flue Gas Pressure, inches of Mercury 26.33 26.33 25.91 26.190 Average Stack Gas Temperature, °F 291.00 283.98 274.27 283.083 Average Velocity Head, inches of H2O 0.9354405588 76558 0.900405912

726865 0.859897149

452188 0.899
Average Stack Gas Velocity, feet/second 69.18 67.27 65.76 67.403 Stack Cross-Sectional Area, square feet 699.807 699.807 699.807 699.807 Dry Volumetric Flow Rate, dry scfm 1,568,045.9 1,574,421.9 1,535,418.5 1,559,295.4 33 Actual Wet Volumetric Flue Gas Flow Rate, acfm 2,904,758.9 2,824,561.0 2,761,158.5 2,830,159.4 67 Percent Isokinetic of Sampling Rate, % 103.3 101.3 100.6 101.733 Percent Excess Air, % 47.1 48.2 46.4 47.233 F-Factor, dscfm/MMBtu @ %O2 9787 9787 9869 9,814.333 Round Duct Diameter, inches 358.2 358.2 358.2 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



### Wednesday, February 23, 2011 Page 10 of 12

### Gerald Gentleman Station
6/17/2010
Location Unit 2 - Method 5 Average Run Number Test Date Run Start Time Run Finish Time Net Traversing Points Net Run Time, minutes Nozzle Diameter, inches Pitot Tube Coefficient Dry Gas Meter Calibration Factor Barometric Pressure, inches of Mercury Average Orifice Meter Differential, inches H2O Dry Gas Meter Volume Sampled, cubic feet Average Dry Gas Meter Temperature, °F Dry Gas Meter Volume Sampled, dscf Total Moisture Liquid collected, g Volume of Water Vapor, standard cubic feet Moisture Content of Stack Gas, % Moisture Saturation at Stack Gas Temperature, % Dry Mole Fraction Carbon Dioxide, % Oxygen, % Carbon Monoxide & Nitrogen, % Fuel Factor Dry Molecular Weight, lb/lb-Mole Wet Molecular weight, lb/lb-Mole Flue Gas Static Pressure, inches of H2O Absolute Flue Gas Pressure, inches of Mercury Average Stack Gas Temperature, °F Average Velocity Head, inches of H2O Average Stack Gas Velocity, feet/second Stack Cross-Sectional Area, square feet Dry Volumetric Flow Rate, dry scfm Actual Wet Volumetric Flue Gas Flow Rate, acfm Percent Isokinetic of Sampling Rate, % Percent Excess Air, % F-Factor, dscfm/MMBtu @ %O2 Round Duct Diameter, inches Rectangular Duct Width, inches Rectangular Duct Length, inches Fw Fc



### Wednesday, February 23, 2011 Page 11 of 12

### Gerald Gentleman Station
6/17/2010
Location Unit 2 - 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



### Wednesday, February 23, 2011 Page 12 of 12