Name: James Reilly

Title: Plant Manager

Company: Arizona Public Service - Cholla Power

Sign Date: 8/20/2010

Name: Richard Stallings

Title: Project Manager/Field Lead

Company: TRC Environmental

Sign Date: 8/20/2010

Permitted Facility Representative / Date Testing Company Representative / Date

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.

Monday, February 14, 2011 Page 1 of 15
8/20/2010

Facility Information:

Cholla Power Plant

4801 Cholla Lake Road

Mail Station 4458

Joseph City Az 86032

Contact: Kimber Belknap

Phone: 928 288-1470

Fax: 928 288-1180

Email: kimber.belknap@aps.com

Testing Company:

TRC Environmental Inc.

4221-A Balloon Park Road NE

Albuquerque NM 87109

Contact:Richard Stallings

Phone: 505 314-7072

Fax: 505 761-0208

Email: rstallings@trcsolutions.com

Air Permit Number:

33500

Permitted Source ID/Name:

3 Cholla Unit 3

Permitted Maximum Process Rate:

not applicable

Max. Normal Operation Process Rate:

260 to 305 gross megawatts

Target Process Test Rate

> 280 gross megawatts

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

 process flow diagram:

Cholla Unit 3 is a tangentially-fired, coal-burning electrical generation unit. The unit has a low NOx burner system 

with COFA and SOFA, fabric filter baghouse for particulate control and lime slurry spray tower absorber for sulfur 

dioxide control.

Industry/SCC/NAIS 221112

Sampling Location Information:

Test Parameter Information:

AFS #: 04017Z2369 FRS #: 110017206192

SCC / Description 10100212 External Combustion Boilers - Electric Generation - Bituminous/Subbituminous 

Coal - Pulverized Coal: Dry Bottom (Tangential) (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

U3 Stack 205.75 0 0 0 1716 4164 4 12

Target

Parameter 

Test

Method

Number of

Test Runs

Test Run

Duration

Sample 

Location Points Comments

Hydrogen Chloride Method 26A 3 180 0 The Method Detection 

Limit (MDL) is 

specified in Method 

26A, section 12.1

U3 Stack

Regulation Description Compound Limit Unit

none 0

Monday, February 14, 2011 Page 2 of 15
8/20/2010

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.

CTM-033 was modified to use three impingers with 2 Normal NaOH solution and a 60 minute run time, as described 

in the attached ICR TEST FAQ 025. The first impinger pH was checked at each port change and replaced with a 

fresh impinger when the pH was less than 12.

Hydrogen Fluoride Method 26A 3 180 0 Stack gas is moisture 

saturated, so 

impingers were not 

weighed for moisture. 

Header Data Vlc box 

milliliter H20 captured 

was calculated to 

match saturation 

moisture percentage.

U3 Stack

U3 Stack Beryllium Method 29 3 240 0

U3 Stack Arsenic Method 29 3 240 0

Selenium Method 29 3 240 0 Stack gas is moisture 

saturated, so 

impingers were not 

weighed for moisture. 

Header Data Vlc box 

milliliter H20 captured 

was calculated to 

match saturation 

moisture percentage.

U3 Stack

U3 Stack Cadmium Method 29 3 240 0

U3 Stack Chromium Method 29 3 240 0

U3 Stack Cobalt Method 29 3 240 0

U3 Stack Lead Method 29 3 240 0

U3 Stack Manganese Method 29 3 240 0

Nickel Method 29 3 240 0 The Method Detection 

Limit (MDL) for all 

metals was calculated 

per 40 CFR 136, 

appendix B

U3 Stack

U3 Stack Antimony Method 29 3 240 0

Organic Condensible 

Particulate

Method 5/OTM-28 3 240 0 Hexane replaced 

methylene chloride for 

extraction

U3 Stack

Inorganic (Aqueous) 

Condensible Part.

Method 5/OTM-28 3 240 0 Hexane replaced 

methylene chloride for 

extraction

U3 Stack

U3 Stack Filterable Particulate Method 5/OTM-28 3 240 0

U3 Stack Total Particulate Method 5/OTM-28 3 240 0

Monday, February 14, 2011 Page 3 of 15
8/20/2010

Sampling / Stack Data Results Summary

Location U3 Stack - Method 26A

Average

Run Number 1 2 3

Test Date 4/21/2010 4/22/2010 4/23/2010

Run Start Time 4/21/2010 

2:49:00 PM

4/22/2010 

2:34:00 PM

4/23/2010 

9:10:00 AM

Run Finish Time 4/21/2010 

7:42:00 PM

4/22/2010 

6:11:00 PM

4/23/2010 

1:19:00 PM

Net Run Time, minutes 180 180 180

Dry Gas Meter Volume Sampled, dscf 123.386 126.230 121.433 123.683

Moisture Content of Stack Gas, % 14.70 14.32 14.17 14.397

Moisture Saturation at Stack Gas Temperature, % 14.70 14.32 14.17 14.397

Carbon Dioxide, % 14.58 14.88 15.03 14.830

Oxygen, % 4.73 4.75 4.65 4.710

Average Stack Gas Temperature, °F 121.34 120.39 120.25 120.660

Dry Volumetric Flow Rate, dry scfm 613,843.9 625,126.7 607,333.1 615,434.567

Actual Wet Volumetric Flue Gas Flow Rate, acfm 975,976.3 987,890.2 951,594.2 971,820.233

Percent Isokinetic of Sampling Rate, % 100.4 100.9 99.9 100.400

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

Monday, February 14, 2011 Page 4 of 15
8/20/2010

Location U3 Stack - Method 29

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

Monday, February 14, 2011 Page 5 of 15
8/20/2010

Location U3 Stack - Method 5/OTM-28

Average

Run Number

Test Date

Run Start Time

Run Finish Time

Net Run Time, minutes

Dry Gas Meter Volume Sampled, dscf 4/20/2010 

11:40:00 AM

4/21/2010 

9:06:00 

AM

4/23/2010 

9:10:00 AM

Moisture Content of Stack Gas, % 240 240 240 240.000

Moisture Saturation at Stack Gas Temperature, % 0.224 0.224 0.224 0.224

Carbon Dioxide, % 0.99 0.99 0.99 0.990

Oxygen, % 24.65 24.35 24.5 24.500

Average Stack Gas Temperature, °F 15.21 15.27 14.37 14.950

Dry Volumetric Flow Rate, dry scfm 30.59 30.58 30.59 30.587

Actual Wet Volumetric Flue Gas Flow Rate, acfm 28.87 28.89 28.98 28.913

Percent Isokinetic of Sampling Rate, % -0.77 -0.75 -0.71 -0.743

F-Factor, dscfm/MMBtu @ %O2 121.48 120.85 119.10 120.477

Fw 69.71 70.42 69.83 69.987

Fc 1.150427166

62822

1.16170547

917553

1.156896488

51838

1.156

Monday, February 14, 2011 Page 6 of 15
8/20/2010

Emissions Summary

Location: U3 Stack - Method 26A

Compound: Hydrogen Chloride

Average

RunNumber 1 2 3

Mass_mg 0.36 0.359 0.351 0.357

lb/mmBtuO2 8.13E-05 7.94E-05 8.02E-05 0.000

Compound: Hydrogen Fluoride

Average

RunNumber 1 2 3

Mass_mg 0.369 0.368 0.359 0.365

lb/mmBtuO2 8.33E-05 8.13E-05 8.20E-05 0.000

Location: U3 Stack - Method 29

Compound: Antimony

Average

RunNumber 1 2 3

Mass_mg 0.0002954 0.0003422 0.0001962 0.000

lb/mmBtuO2 4.91E-08 5.83E-08 3.29E-08 0.000

Compound: Arsenic

Average

RunNumber 1 2 3

Mass_mg 0.00066 0.00118 0.000525 0.001

lb/mmBtuO2 1.10E-07 2.01E-07 8.81E-08 0.000

Compound: Beryllium

Average

RunNumber 1 2 3

Mass_mg 0.000024 0.000027 0.000024 0.000

lb/mmBtuO2 3.99E-09 4.60E-09 4.03E-09 0.000

Compound: Cadmium

Average

RunNumber 1 2 3

Mass_mg 0.000252 0.000075 0.00003 0.000

lb/mmBtuO2 4.19E-08 1.28E-08 5.04E-09 0.000

Compound: Chromium

Average

RunNumber 1 2 3

Mass_mg 0.00145 0.00057 0.00042 0.001

lb/mmBtuO2 2.41E-07 9.72E-08 7.05E-08 0.000

Compound: Cobalt

Average

RunNumber 1 2 3

Mass_mg 0.00014 0.0001 0.0000156 0.000

lb/mmBtuO2 2.33E-08 1.71E-08 2.62E-09 0.000

Monday, February 14, 2011 Page 7 of 15
8/20/2010

Process Run Data

Compound: Lead

Average

RunNumber 1 2 3

Mass_mg 0.0101 0.0028 0.0052099 0.006

lb/mmBtuO2 1.68E-06 4.77E-07 8.74E-07 0.000

Compound: Manganese

Average

RunNumber 1 2 3

Mass_mg 0.03116 0.0091 0.0062 0.015

lb/mmBtuO2 5.18E-06 1.55E-06 1.04E-06 0.000

Compound: Nickel

Average

RunNumber 1 2 3

Mass_mg 0.006836 0.006626 0.001966 0.005

lb/mmBtuO2 1.14E-06 1.13E-06 3.30E-07 0.000

Compound: Selenium

Average

RunNumber 1 2 3

Mass_mg 0.0362 0.05 0.0109 0.032

lb/mmBtuO2 6.02E-06 8.53E-06 1.83E-06 0.000

Location: U3 Stack - Method 5/OTM-28

Compound: Filterable Particulate

Average

RunNumber 1 2 3

Mass_mg 19.3 18.8 16.9 18.333

lb/mmBtuO2 3.08E-03 3.02E-03 2.67E-03 0.003

Compound: Inorganic (Aqueous) Condensible Pa

Average

RunNumber 1 2 3

Mass_mg 64.5 14.3 19.8 32.867

lb/mmBtuO2 1.03E-02 2.30E-03 3.13E-03 0.005

Compound: Organic Condensible Particulate

Average

RunNumber 1 2 3

Mass_mg 4.3 6.2 2.4 4.300

lb/mmBtuO2 6.86E-04 9.97E-04 3.79E-04 0.001

Compound: Total Particulate

Average

RunNumber 1 2 3

Mass_mg 88.1 39.3 39.1 55.500

lb/mmBtuO2 1.41E-02 6.32E-03 6.18E-03 0.009

Monday, February 14, 2011 Page 8 of 15
8/20/2010

Process Run Data

Run Name Value UOM Comments

Target

Value

1 Heat Input Million Btus/million BTU using CO2 3190.5 M5B R1, M28 

R1, and M29 R1 

4/20/10 1140-1636

3200

2 Heat Input Million Btus/million BTU using CO2 3203.5 M5B R2, M28 R2, 

M29 R2, 4/21/10 

0906-1402

3200

3 Heat Input Million Btus/million BTU using CO2 3164.8 M26A R1 4/21/10 

1449-1942

3200

4 Heat Input Million Btus/million BTU using CO2 3168.6 M29 R3 4/22/10 

0900-1349

3200

6 Heat Input Million Btus/million BTU using CO2 3163.7 M26A R2 4/22/10 

1434-1811

3200

7 Heat Input Million Btus/million BTU using CO2 3189.5 M5B R3, M26A 

R3, M28 R3, 

M30B R1 4/23/10 

0910-1333

3200

1 Steam output 1957.1 1000 lbs/hour 1900

2 Steam output 1958.6 1000 lbs/hour 1900

3 Steam output 1958.6 1000 lbs/hour 1900

4 Steam output 1935.1 1000 lbs/hour 1900

6 Steam output 1924.4 1000 lbs/hour 1900

7 Steam output 1927.2 1000 lbs/hour 1900

1 fabric filter pressure drop 6.7 inches H2O 6

2 fabric filter pressure drop 6 inches H2O 6

3 fabric filter pressure drop 5.5 inches H2O 6

4 fabric filter pressure drop 5.5 inches H2O 6

6 fabric filter pressure drop 5.3 inches H2O 6

7 fabric filter pressure drop 5.3 inches H2O 6

1 scrubber liquor pH 6.3 pH 6

2 scrubber liquor pH 6.4 pH 6

3 scrubber liquor pH 6.4 pH 6

4 scrubber liquor pH 6.6 pH 6

6 scrubber liquor pH 6.3 pH 6

7 scrubber liquor pH 6.4 pH 6

1 scrubber liquor flow rate 42621 gpm 43000

2 scrubber liquor flow rate 41725 gpm 43000

3 scrubber liquor flow rate 41314 gpm 43000

Monday, February 14, 2011 Page 9 of 15
8/20/2010

4 scrubber liquor flow rate 41471 gpm 43000

6 scrubber liquor flow rate 41954 gpm 43000

7 scrubber liquor flow rate 41705 gpm 43000

1 lime slurry sorbent injection rate 54.4 gpm 50

2 lime slurry sorbent injection rate 64.3 gpm 50

3 lime slurry sorbent injection rate 63.9 gpm 50

4 lime slurry sorbent injection rate 62.6 gpm 50

6 lime slurry sorbent injection rate 62.7 gpm 50

7 lime slurry sorbent injection rate 61.5 gpm 50

1 standard temperature 68 Deg F 68

2 standard temperature 68 Deg F 68

3 standard temperature 68 Deg F 68

4 standard temperature 68 Deg F 68

6 standard temperature 68 Deg F 68

7 standard temperature 68 Deg F 68

1 standard pressure 29.92 " Hg 29.92

2 standard pressure 29.92 " Hg 29.92

3 standard pressure 29.92 " Hg 29.92

4 standard pressure 29.92 " Hg 29.92

6 standard pressure 29.92 " Hg 29.92

7 standard pressure 29.92 " Hg 29.92

1 Gross electrical output 294.6 mwe 295

2 Gross electrical output 295.2 mwe 295

3 Gross electrical output 294.3 mwe 295

4 Gross electrical output 295 mwe 295

6 Gross electrical output 294.3 mwe 295

7 Gross electrical output 294.7 mwe 295

1 Net electrical output 270.5 nwe 265

2 Net electrical output 270.9 nwe 265

3 Net electrical output 270.1 nwe 265

4 Net electrical output 271 nwe 265

6 Net electrical output 270.4 nwe 265

7 Net electrical output 271.1 nwe 265

1 Coal feed rate 150.8 tons/hour 145

2 Coal feed rate 148.1 tons/hour M5B R2, M28 R2, 

M29 R2, 4/21/10 

0906-1402

145

Monday, February 14, 2011 Page 10 of 15
8/20/2010

APCD Run Data

3 Coal feed rate 147.6 tons/hour M26A R1 4/21/10 

1449-1942

145

4 Coal feed rate 148 tons/hour M29 R3 4/22/10 

0900-1349

145

6 Coal feed rate 147.6 tons/hour M26A R2 4/22/10 

1434-1811

145

7 Coal feed rate 150.7 tons/hour M5B R3, M26A 

R3, M28 R3, 

M30B R1 4/23/10 

0910-1333

145

Run Name Value UOM Comments

Target

Value

1 LOW NOX BURNERS 0.16 NOx lb/mbtu 0.18

2 LOW NOX BURNERS 0.16 NOx lb/mbtu 0.18

3 LOW NOX BURNERS 0.16 NOx lb/mbtu 0.18

4 LOW NOX BURNERS 0.16 NOx lb/mbtu 0.18

5 LOW NOX BURNERS 0.16 NOx lb/mbtu 0.18

6 LOW NOX BURNERS 0.15 NOx lb/mbtu 0.18

1 OVERFIRE AIR 0.16 NOx lb/mbtu 0.18

2 OVERFIRE AIR 0.16 NOx lb/mbtu 0.18

3 OVERFIRE AIR 0.16 NOx lb/mbtu 0.18

4 OVERFIRE AIR 0.16 NOx lb/mbtu 0.18

5 OVERFIRE AIR 0.16 NOx lb/mbtu 0.18

6 OVERFIRE AIR 0.15 NOx lb/mbtu 0.18

1 FABRIC FILTER 6.7 " H20 8

2 FABRIC FILTER 6 " H20 8

3 FABRIC FILTER 5.5 " H20 8

4 FABRIC FILTER 5.5 " H20 8

5 FABRIC FILTER 5.3 " H20 8

6 FABRIC FILTER 5.3 " H20 8

1 SPRAY TOWER 0.13 SO2 lb/mbtu 0.15

2 SPRAY TOWER 0.14 SO2 lb/mbtu 0.15

3 SPRAY TOWER 0.13 SO2 lb/mbtu 0.15

4 SPRAY TOWER 0.13 SO2 lb/mbtu 0.15

5 SPRAY TOWER 0.13 SO2 lb/mbtu 0.15

6 SPRAY TOWER 0.13 SO2 lb/mbtu 0.15

1 FABRIC FILTER 3 Opacity % 2

Monday, February 14, 2011 Page 11 of 15
8/20/2010

Process Lab Run Data

2 FABRIC FILTER 3 Opacity % 2

3 FABRIC FILTER 3 Opacity % 2

4 FABRIC FILTER 3 Opacity % 2

5 FABRIC FILTER 3 Opacity % 2

6 FABRIC FILTER 3 Opacity % 2

Run Name Value UOM Comments

1 none 0

Monday, February 14, 2011 Page 12 of 15
8/20/2010

Sampling / Stack Data Results Detail

Location U3 Stack - Method 26A

Average

Run Number 1 2 3

Test Date 4/21/2010 4/22/2010 4/23/2010

Run Start Time 4/21/2010 

2:49:00 PM

4/22/2010 

2:34:00 PM

4/23/2010 

9:10:00 AM

Run Finish Time 4/21/2010 

7:42:00 PM

4/22/2010 

6:11:00 PM

4/23/2010 

1:19:00 PM

Net Traversing Points 12 12 12

Net Run Time, minutes 180 180 180

Nozzle Diameter, inches 0.217 0.217 0.217 0.217

Pitot Tube Coefficient 0.84 0.84 0.84 0.840

Dry Gas Meter Calibration Factor 1.0099 1.0099 1.0099 1.010

Barometric Pressure, inches of Mercury 24.35 24.35 24.5 24.400

Average Orifice Meter Differential, inches H2O 1.91 1.94 1.79 1.880

Dry Gas Meter Volume Sampled, cubic feet 151.722 152.403 143.486 149.204

Average Dry Gas Meter Temperature, °F 76.70 67.01 58.70 67.470

Dry Gas Meter Volume Sampled, dscf 123.386 126.230 121.433 123.683

Total Moisture Liquid collected, g 451.8 448 425.8 441.867

Volume of Water Vapor, standard cubic feet 21.27 21.09 20.04 20.800

Moisture Content of Stack Gas, % 14.70 14.32 14.17 14.397

Moisture Saturation at Stack Gas Temperature, % 14.70 14.32 14.17 14.397

Dry Mole Fraction 0.853 0.8568 0.8583 0.856

Carbon Dioxide, % 14.58 14.88 15.03 14.830

Oxygen, % 4.73 4.75 4.65 4.710

Carbon Monoxide & Nitrogen, % 80.69 80.37 80.32 80.460

Fuel Factor 1.11 1.09 1.08

Dry Molecular Weight, lb/lb-Mole 30.52 30.57 30.59 30.560

Wet Molecular weight, lb/lb-Mole 28.68 28.77 28.81 28.753

Flue Gas Static Pressure, inches of H2O -0.75 -0.76 -0.71 -0.740

Absolute Flue Gas Pressure, inches of Mercury 24.29 24.29 24.45 24.343

Average Stack Gas Temperature, °F 121.34 120.39 120.25 120.660

Average Velocity Head, inches of H2O 1.1532368478

9956

1.187291757

48641

1.110798002

80729

1.150

Average Stack Gas Velocity, feet/second 70.45 71.31 68.69 70.150

Stack Cross-Sectional Area, square feet 230.891 230.891 230.891 230.891

Dry Volumetric Flow Rate, dry scfm 613,843.9 625,126.7 607,333.1 615,434.567

Actual Wet Volumetric Flue Gas Flow Rate, acfm 975,976.3 987,890.2 951,594.2 971,820.233

Percent Isokinetic of Sampling Rate, % 100.4 100.9 99.9 100.400

Percent Excess Air, % 28.5 28.8 28.1 28.467

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

Round Duct Diameter, inches 205.75 205.75 205.75

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

Monday, February 14, 2011 Page 13 of 15
8/20/2010

Location U3 Stack - Method 29

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 14, 2011 Page 14 of 15
8/20/2010

Location U3 Stack - Method 5/OTM-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 U3 Stack U3 Stack U3 Stack

Average Orifice Meter Differential, inches H2O 4/20/2010 4/21/2010 4/23/2010

Dry Gas Meter Volume Sampled, cubic feet Method 

5/OTM-28

Method 

5/OTM-28

Method 

5/OTM-28

Average Dry Gas Meter Temperature, °F 1 2 3 2.000

Dry Gas Meter Volume Sampled, dscf 4/20/2010 

11:40:00 AM

4/21/2010 

9:06:00 AM

4/23/2010 

9:10:00 AM

Total Moisture Liquid collected, g 4/20/2010 

4:36:00 PM

4/21/2010 

2:02:00 PM

4/23/2010 

1:33:00 PM

Volume of Water Vapor, standard cubic feet 12 12 12 12.000

Moisture Content of Stack Gas, % 240 240 240 240.000

Moisture Saturation at Stack Gas Temperature, % 0.224 0.224 0.224 0.224

Dry Mole Fraction 0.84 0.84 0.84 0.840

Carbon Dioxide, % 0.99 0.99 0.99 0.990

Oxygen, % 24.65 24.35 24.5 24.500

Carbon Monoxide & Nitrogen, % 2.12 2.15 2.05 2.107

Fuel Factor 220.754 221.943 213.094

Dry Molecular Weight, lb/lb-Mole 86.85 86.81 62.75 78.803

Wet Molecular weight, lb/lb-Mole 174.945 173.789 175.556 174.763

Flue Gas Static Pressure, inches of H2O 666.7 665.6 625.9 652.733

Absolute Flue Gas Pressure, inches of Mercury 31.38 31.33 29.46 30.723

Average Stack Gas Temperature, °F 15.21 15.27 14.37 14.950

Average Velocity Head, inches of H2O 14.58 14.51 13.73 14.273

Average Stack Gas Velocity, feet/second 0.8542 0.8549 0.8627 0.857

Stack Cross-Sectional Area, square feet 1.08 1.08 1.08 1.080

Dry Volumetric Flow Rate, dry scfm 30.59 30.58 30.59 30.587

Actual Wet Volumetric Flue Gas Flow Rate, acfm 28.87 28.89 28.98 28.913

Percent Isokinetic of Sampling Rate, % -0.77 -0.75 -0.71 -0.743

Percent Excess Air, % 24.59 24.29 24.45 24.443

F-Factor, dscfm/MMBtu @ %O2 121.48 120.85 119.10 120.477

Round Duct Diameter, inches 15 14.95 15.03

Rectangular Duct Width, inches 4.76 4.77 4.65

Rectangular Duct Length, inches 80.24 80.28 80.32

Fw 69.71 70.42 69.83 69.987

Fc 1.1504271666

2822

1.161705479

17553

1.156896488

51838

1.156

Monday, February 14, 2011 Page 15 of 15