Name:

Title:

Company:

Sign Date:

Name:

Title:

Company:

Sign Date:

Permitted Facility Representative / Date Testing Company Representative / Date

Midwest Generation Homer City Unit 3

Final Test Report 

for

/ /

Based on information and belief formed 

after reasonable inquiry, I certify that the 

statements and information in this test 

report are true, accurate, and complete.

I have reviewed all testing details and 

results in this test report and hereby 

certify that the test report is authentic 

and accurate.

Tuesday, February 08, 2011 Page 1 of 11
Midwest Generation Homer City Unit 3

Facility Information:

Edison Mission Energy - Homer City Gener

1750 Power Plant Road

Homer City PA 15748

Contact: Gary Cline

Phone: 724-479-6255

Fax: 724-479-6300

Email: gcline@mwgen.com

Testing Company:

Avogadro Environmental Corporation

1350 Sullivan Trail, Suite A

Easton PA 18040

Contact:Thomas Mattei

Phone: 610-559-8776 x 103

Fax: 610-559-8913

Email: tmattei@avogadro.net

Air Permit Number:

Title V 32-00055

Permitted Source ID/Name:

3122 Homer City Unit 3

Permitted Maximum Process Rate:

7260 MMBtu/hr

Max. Normal Operation Process Rate:

6600 MMBtu/hr

Target Process Test Rate

6215 MMBtu/hr

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

 process flow diagram:

Homer City Generating Station includes three coal-fired electrical generating units with a total capacity of 2,100 

gross megawatts. Unit 3 is a Babcock & Wilcox wall-fired boiler with a heat output rating of 7,260 MMBTU/hr with 

an 854 foot stack. The continuous emissions monitors are located at the 570 foot level in the stack. Unit 3 also has a 

wet limestone scrubber for sulfur dioxide (SO2) emissions controls and low NOx burner and a SCR for NOx controls 

and a Cold ESP for PM controls.

Industry/SCC/NAIS 221112

Sampling Location Information:

Test Parameter Information:

AFS #: 4206300002 FRS #: 110000330339

SCC / Description 10100202 External Combustion Boilers - Electric Generation - Bituminous/Subbituminous 

Coal - Pulverized Coal: Dry Bottom (Bituminous Coal) 

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

Location

Round

Duct

Diam.

Distance from 

upstream dist.

Distance from

downstream dist.

Number of

Traverse Ports

Equiv. 

Diam

Min.Travers 

Points

Rect. Duct 

Length /Width

Stack Exit 324 0 0 0 3444 4512 4 12

Target

Parameter 

Test

Method

Number of

Test Runs

Test Run

Duration

Sample 

Location Points Comments

% H2O Method 1 - 4 3 60 0 run durations range 

from 60-66 minute

Stack Exit

Tuesday, February 08, 2011 Page 2 of 11
Midwest Generation Homer City Unit 3

Hydrogen Fluoride Method 26A 3 60 0 The samples were 

collected in a 

combined train with 

HCN using NaOH

impingers only.

Chlorine data for 

Method 26A analysis 

is not available from 

the laboratory.

Method 26A & CTM033

The MDLs are 

determined by the 

analysis of at least 

seven replicate 

standards at a 

concentration near the 

expected MDL. To 

determine the MDL 

value, the standard 

deviation of the 

replicate analyses is 

calculated and that 

number is multiplied 

by the Student t factor 

that corresponds to the 

number of replicates 

analyzed. The MDL 

value should meet the 

criteria stated in the 

CFR Title 40, Part 136 

B.

If the MDL 

determined does not 

meet these criteria, a 

default MDL value 

will be used which is 

1/10 of the 

concentration of the 

standard used to 

produce the MDL 

value.

Stack Exit

Tuesday, February 08, 2011 Page 3 of 11
Midwest Generation Homer City Unit 3

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.

There were no modifications or deviations to the applicable test methods.

Hydrogen Chloride Method 26A 3 60 0 The samples were 

collected in a 

combined train with 

HCN using NaOH

impingers only.

Chlorine data for 

Method 26A analysis 

is not available from 

the laboratory.

Method 26A & CTM033

The MDLs are 

determined by the 

analysis of at least 

seven replicate 

standards at a 

concentration near the 

expected MDL. To 

determine the MDL 

value, the standard 

deviation of the 

replicate analyses is 

calculated and that 

number is multiplied 

by the Student t factor 

that corresponds to the 

number of replicates 

analyzed. The MDL 

value should meet the 

criteria stated in the 

CFR Title 40, Part 136 

B.

If the MDL 

determined does not 

meet these criteria, a 

default MDL value 

will be used which is 

1/10 of the 

concentration of the 

standard used to 

produce the MDL 

value.

Stack Exit

Co2 Method 3A CO2 3 60 0 run durations range 

from 60-66 minute

Stack Exit

O2 Method 3A O2 3 60 0 run durations range 

from 60-66 minutes

Stack Exit

Tuesday, February 08, 2011 Page 4 of 11
Midwest Generation Homer City Unit 3

Sampling / Stack Data Results Summary

Location Stack Exit - Method 26A

Average

Run Number M26A-1 M26A-2 M26A-3

Test Date 6/3/2010 6/3/2010 6/3/2010

Run Start Time 7:30:00 AM 9:20:00 

AM

11:05:00 AM

Run Finish Time 8:55:00 AM 10:46:00 

AM

12:25:00 PM

Net Run Time, minutes 60 60 60

Dry Gas Meter Volume Sampled, dscf 49.583 49.464 47.076 48.708

Moisture Content of Stack Gas, % 9.18 6.27 7.31 7.587

Moisture Saturation at Stack Gas Temperature, % 13.82 14.12 14.15 14.030

Carbon Dioxide, % 12.427 12.422 12.381 12.410

Oxygen, % 7.044 7.039 6.962 7.015

Average Stack Gas Temperature, °F 124.00 124.85 124.92 124.590

Dry Volumetric Flow Rate, dry scfm 1,788,636.8 1,853,221.3 1,824,947.8 1,822,268.63

3

Actual Wet Volumetric Flue Gas Flow Rate, acfm 2,343,582.1 2,352,857.5 2,343,238.6 2,346,559.40

0

Percent Isokinetic of Sampling Rate, % 102.1 97.4 94.1 97.867

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

Tuesday, February 08, 2011 Page 5 of 11
Midwest Generation Homer City Unit 3

Emissions Summary

Process Run Data

Location: Stack Exit - Method 26A

Compound: Hydrogen Chloride

Average

RunNumber M26A-1 M26A-2 M26A-3

Mass_mg 0.475 0.577 0.768 0.607

lb/mmBtuO2 3.12E-04 3.79E-04 5.27E-04 0.000

Compound: Hydrogen Fluoride

Average

RunNumber M26A-1 M26A-2 M26A-3

Mass_mg 0.497 0.48 0.522 0.500

lb/mmBtuO2 3.26E-04 3.15E-04 3.59E-04 0.000

Tuesday, February 08, 2011 Page 6 of 11
Midwest Generation Homer City Unit 3

Process Run Data

Run Name Value UOM Comments

Target

Value

1 Coal Burned 0.254 1000 Tons/hr Run 1 for HCN, 

HF, HCl: 0730-

0855

1 Flue Gas Flow Rate 1512.5 dscfm Run 1 for HCN, 

HF, HCl: 0730-

0855

1 Flue Gas Carbon Dioxide Content 10.63 % Run 1 for HCN, 

HF, HCl: 0730-

0855

1 Flue Gas Sampling Point Temperature 128 Deg F Run 1 for HCN, 

HF, HCl: 0730-

0855

1 Flue Gas Pressure 0.93 atm Run 1 for HCN, 

HF, HCl: 0730-

0855

1 Standard Pressure 1 atm Run 1 for HCN, 

HF, HCl: 0730-

0855

1 Standard Temperature 68 Deg F Run 1 for HCN, 

HF, HCl: 0730-

0855

1 Unit Gross Electrical Output 693 Mwe Run 1 for HCN, 

HF, HCl: 0730-

0855

1 Average Heat Input 6209.4 MMBtu/hr Run 1 for HCN, 

HF, HCl: 0730-

0855

1 Steam Output 3765 1000 lbs/hr Run 1 for HCN, 

HF, HCl: 0730-

0855

1 Unit Net Electric Generation 639 MWh Run 1 for HCN, 

HF, HCl: 0730-

0855

1 Pressure Drop across FGD 5.37 in H20 Run 1 for HCN, 

HF, HCl: 0730-

0855

1 FGD Scruber Liquor Flow Rate 274.1 gals/min Run 1 for HCN, 

HF, HCl: 0730-

0855

1 Flue Gas Oxygen Content 6.94 % Run 1 for HCN, 

HF, HCl: 0730-

0855

1 Flue Gas Moisture Content 13.82 % Run 1 for HCN, 

HF, HCl: 0730-

0855

Tuesday, February 08, 2011 Page 7 of 11
Midwest Generation Homer City Unit 3

2 Coal Burned 0.256 1000 Tons/hr Run 2 for HCN, 

HF, HCl: 0920-

1046

2 Flue Gas Flow Rate 1508.1 dscfm Run 2 for HCN, 

HF, HCl: 0920-

1046

2 Flue Gas Carbon Dioxide Content 10.62 % Run 2 for HCN, 

HF, HCl: 0920-

1046

2 Flue Gas Sampling Point Temperature 128 Deg F Run 2 for HCN, 

HF, HCl: 0920-

1046

2 Flue Gas Pressure 0.93 atm Run 2 for HCN, 

HF, HCl: 0920-

1046

2 Standard Pressure 1 atm Run 2 for HCN, 

HF, HCl: 0920-

1046

2 Standard Temperature 68 Deg F Run 2 for HCN, 

HF, HCl: 0920-

1046

2 Unit Gross Electrical Output 692 Mwe Run 2 for HCN, 

HF, HCl: 0920-

1046

2 Average Heat Input 6211.8 MMBtu/hr Run 2 for HCN, 

HF, HCl: 0920-

1046

2 Steam Output 3775 1000 lbs/hr Run 2 for HCN, 

HF, HCl: 0920-

1046

2 Unit Net Electric Generation 642 MWh Run 2 for HCN, 

HF, HCl: 0920-

1046

2 Pressure Drop across FGD 5.34 in H20 Run 2 for HCN, 

HF, HCl: 0920-

1046

2 FGD Scruber Liquor Flow Rate 267.9 gals/min Run 2 for HCN, 

HF, HCl: 0920-

1046

2 Flue Gas Oxygen Content 6.93 % Run 2 for HCN, 

HF, HCl: 0920-

1046

2 Flue Gas Moisture Content 14.12 % Run 2 for HCN, 

HF, HCl: 0920-

1046

3 Coal Burned 0.256 1000 Tons/hr Run 3 for HCN, 

HF, HCl: 1105-

1225

Tuesday, February 08, 2011 Page 8 of 11
Midwest Generation Homer City Unit 3

APCD Run Data

3 Flue Gas Flow Rate 1505.8 dscfm Run 3 for HCN, 

HF, HCl: 1105-

1225

3 Flue Gas Carbon Dioxide Content 10.7 % Run 3 for HCN, 

HF, HCl: 1105-

1225Run 3 for 

HCN, HF, HCl: 

1105-1225

3 Flue Gas Sampling Point Temperature 128 Deg F Run 3 for HCN, 

HF, HCl: 1105-

1225

3 Flue Gas Pressure 0.93 atm Run 3 for HCN, 

HF, HCl: 1105-

1225

3 Standard Pressure 1 atm Run 3 for HCN, 

HF, HCl: 1105-

1225

3 Standard Temperature 68 Deg F Run 3 for HCN, 

HF, HCl: 1105-

1225

3 Unit Gross Electrical Output 694 Mwe Run 3 for HCN, 

HF, HCl: 1105-

1225

3 Average Heat Input 6223.3 MMBtu/hr Run 3 for HCN, 

HF, HCl: 1105-

1225

3 Steam Output 3780 1000 lbs/hr Run 3 for HCN, 

HF, HCl: 1105-

1225

3 Unit Net Electric Generation 644 MWh Run 3 for HCN, 

HF, HCl: 1105-

1225

3 Pressure Drop across FGD 5.35 in H20 Run 3 for HCN, 

HF, HCl: 1105-

1225

3 FGD Scruber Liquor Flow Rate 271 gals/min Run 3 for HCN, 

HF, HCl: 1105-

1225

3 Flue Gas Oxygen Content 6.9 % Run 3 for HCN, 

HF, HCl: 1105-

1225

3 Flue Gas Moisture Content 14.15 % Run 3 for HCN, 

HF, HCl: 1105-

1225

Run Name Value UOM Comments

Target

Value

1 LOW NOX BURNERS 0 0

Tuesday, February 08, 2011 Page 9 of 11
Midwest Generation Homer City Unit 3

Process Lab Run Data

1 0 0

1 SCR (SELECTIVE CATALYTIC REDUCTION) 0 0

1 ELECTROSTATIC PRECIPITATOR 0 0

1 WET SCRUBBER (Flue Gas Desulfurization) 0 0

Run Name Value UOM Comments

1 Fuel Higher Heating Value 0 Btu/lb

1 Fuel Moisture 0 %

1 Fuel Mercury Content 0 ppm

1 Fuel Cadmium Content 0 ppm

1 Ultimate/Proximate Analysis 0

1 Fuel Nickel Content 0 ppm

1 Fuel Arsenic Content 0 ppm

1 Fuel Chromium Content 0 ppm

1 Fuel Beryllium Content 0 ppm

1 Fuel Lead Content 0 ppm

1 Fuel Manganese Content 0 ppm

1 Fuel Chlorine Content 0 ppm

1 Fuel Fluorine Content 0 ppm

Tuesday, February 08, 2011 Page 10 of 11
Midwest Generation Homer City Unit 3

Sampling / Stack Data Results Detail

Location Stack Exit - Method 26A

Average

Run Number M26A-1 M26A-2 M26A-3

Test Date 6/3/2010 6/3/2010 6/3/2010

Run Start Time 7:30:00 AM 9:20:00 AM 11:05:00 AM

Run Finish Time 8:55:00 AM 10:46:00 AM 12:25:00 PM

Net Traversing Points 12 12 12

Net Run Time, minutes 60 60 60

Nozzle Diameter, inches 0.218 0.219 0.219 0.219

Pitot Tube Coefficient 0.86 0.86 0.86 0.860

Dry Gas Meter Calibration Factor 1.005 1.005 1.005 1.005

Barometric Pressure, inches of Mercury 27.85 27.89 27.89 27.877

Average Orifice Meter Differential, inches H2O 2.48 2.45 2.32 2.417

Dry Gas Meter Volume Sampled, cubic feet 55.513 55.618 53.060 54.730

Average Dry Gas Meter Temperature, °F 96.62 99.77 100.92 99.103

Dry Gas Meter Volume Sampled, dscf 49.583 49.464 47.076 48.708

Total Moisture Liquid collected, g 106.5 70.29 78.81 85.200

Volume of Water Vapor, standard cubic feet 5.01 3.31 3.71 4.010

Moisture Content of Stack Gas, % 9.18 6.27 7.31 7.587

Moisture Saturation at Stack Gas Temperature, % 13.82 14.12 14.15 14.030

Dry Mole Fraction 0.9082 0.9373 0.9269 0.924

Carbon Dioxide, % 12.427 12.422 12.381 12.410

Oxygen, % 7.044 7.039 6.962 7.015

Carbon Monoxide & Nitrogen, % 80.529 80.539 80.657 80.575

Fuel Factor 1.11 1.12 1.13

Dry Molecular Weight, lb/lb-Mole 30.27 30.27 30.26 30.267

Wet Molecular weight, lb/lb-Mole 29.14 29.50 29.36 29.333

Flue Gas Static Pressure, inches of H2O -0.5 -0.5 -0.6 -0.533

Absolute Flue Gas Pressure, inches of Mercury 27.81 27.85 27.85 27.837

Average Stack Gas Temperature, °F 124.00 124.85 124.92 124.590

Average Velocity Head, inches of H2O 1.1946891469

6095

1.218920554

40162

1.203339472

85221

1.206

Average Stack Gas Velocity, feet/second 68.22 68.49 68.21 68.307

Stack Cross-Sectional Area, square feet 572.555 572.555 572.555 572.555

Dry Volumetric Flow Rate, dry scfm 1,788,636.8 1,853,221.3 1,824,947.8 1,822,268.6

33

Actual Wet Volumetric Flue Gas Flow Rate, acfm 2,343,582.1 2,352,857.5 2,343,238.6 2,346,559.4

00

Percent Isokinetic of Sampling Rate, % 102.1 97.4 94.1 97.867

Percent Excess Air, % 49.6 49.5 48.6 49.233

F-Factor, dscfm/MMBtu @ %O2 9780 9780 9780 9,780.000

Round Duct Diameter, inches 324 324 324

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

Tuesday, February 08, 2011 Page 11 of 11