Name: Steve Christian

Title: Supervising Engineer - Environmental 

Company: PPL Montana LLC

Sign Date: 9/3/2010

Name: Jeff Kunstling

Title: Project Manager

Company: TRC Companies, Inc.

Sign Date: 9/3/2010

Permitted Facility Representative / Date Testing Company Representative / Date

Utility Boiler MACT ICR - Colstrip 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 01, 2011 Page 1 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

Facility Information:

Colstrip Plant

601 Willow Avenue

Colstrip MT 59323

Contact: Steve Christian

Phone: 406-748-5019

Fax: 406-748-5900

Email: sjchristian@pplweb.com

Testing Company:

TRC Companies, Inc.

5540 Centerview Drive

Suite 100

Raleigh NC 27606

Contact:Jeff Kunstling

Phone: 919-256-6234

Fax: 919-838-9661

Email: jkunstling@trcsolutions.com

Air Permit Number:

6076

Permitted Source ID/Name:

3

Permitted Maximum Process Rate:

N/A

Max. Normal Operation Process Rate:

N/A

Target Process Test Rate

N/A

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

 process flow diagram:

Unit 3 is a 805 GMWe boiler firing mainly subbituminous coal from the Rosebud Mine near Colstrip. The maximum 

feed rate for the coal burned in the unit is approximately 456 tons/hour.

Industry/SCC/NAIS 221112

Sampling Location Information:

Test Parameter Information:

AFS #: 3008700007 FRS #: 110017416946

SCC / Description 10100226 External Combustion Boilers - Electric Generation - Bituminous/Subbituminous 

Coal - Pulverized Coal: Dry Bottom Tangential (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

Stack Exit 288 0 0 0 2400 3756 4 3

Target

Parameter 

Test

Method

Number of

Test Runs

Test Run

Duration

Sample 

Location Points Comments

Stack Exit Carbon Monoxide Method 10 3 120 0

Total organic compounds 

(TOC) as Propane

Method 25A 3 120 0 NMHC emissions 

only. Methane 

emissions reported in 

excel template.

Stack Exit

Stack Exit Hydrogen Chloride Method 26A 3 60 0

Stack Exit Hydrogen Fluoride Method 26A 3 60 0

Stack Exit Cadmium Method 29 3 240 0

Tuesday, February 01, 2011 Page 2 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

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.

Stack Exit Selenium Method 29 3 240 0

Stack Exit Nickel Method 29 3 240 0

Stack Exit Manganese Method 29 3 240 0

Stack Exit Lead Method 29 3 240 0

Stack Exit Antimony Method 29 3 240 0

Stack Exit Arsenic Method 29 3 240 0

Stack Exit Cobalt Method 29 3 240 0

Stack Exit Chromium Method 29 3 240 0

Stack Exit Beryllium Method 29 3 240 0

Stack Exit Filterable Particulate Method 29 3 240 0

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

Inorganic (Aqueous) 

Condensible Part.

Stack Exit Method 5/OTM-28 3 240 0

Organic Condensible 

Particulate

Stack Exit Method 5/OTM-28 3 240 0

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

Stack Exit Sulfur Dioxide Method 6C 3 60 0

Stack Exit Nitrogen oxides (NOx) Method 7E 3 60 0

Tuesday, February 01, 2011 Page 3 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

Sampling / Stack Data Results Summary

Location Stack Exit - Method 10

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 Stack Exit - Method 25A

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

Tuesday, February 01, 2011 Page 4 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

Location Stack Exit - Method 26A

Average

Run Number 1 2 3

Test Date 6/22/2010 6/22/2010 6/22/2010

Run Start Time

Run Finish Time

Net Run Time, minutes 60 60 60

Dry Gas Meter Volume Sampled, dscf 49.999 49.643 49.987 49.876

Moisture Content of Stack Gas, % 17.25 17.42 18.25 17.640

Moisture Saturation at Stack Gas Temperature, % 75.86 84.88 84.92 81.887

Carbon Dioxide, % 13.01 13.03 13.17 13.070

Oxygen, % 6.68 6.62 6.48 6.593

Average Stack Gas Temperature, °F 192.75 197.83 197.83 196.137

Dry Volumetric Flow Rate, dry scfm 1,863,656.0 1,856,049.5 1,836,855.7 1,852,187.06

7

Actual Wet Volumetric Flue Gas Flow Rate, acfm 3,138,855.8 3,173,599.3 3,173,870.7 3,162,108.60

0

Percent Isokinetic of Sampling Rate, % 100.6 100.3 102.0 100.967

F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Location Stack Exit - 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

Tuesday, February 01, 2011 Page 5 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

Location Stack Exit - 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

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 Stack Exit - Method 6C

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

Tuesday, February 01, 2011 Page 6 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

Location Stack Exit - Method 7E

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

Tuesday, February 01, 2011 Page 7 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

Emissions Summary

Location: Stack Exit - Method 10

Compound: Carbon Monoxide

Average

Run 1 2 3

lb/mmBtuO2 1.55E-01 8.11E-02 8.50E-02 0.107

ppm 1.48E+02 7.78E+01 8.12E+01 102.333

ppm@7%O2 1.45E+02 7.56E+01 7.92E+01 99.933

Location: Stack Exit - Method 25A

Compound: Total organic compounds (TOC) as 

Average

Run 1 2 3

lb/mmBtuO2 1.66E-03 1.14E-03 8.74E-04 0.001

ppm 1.00E+00 6.93E-01 5.30E-01 0.741

ppm@7%O2 9.78E-01 6.73E-01 5.17E-01 0.723

Location: Stack Exit - Method 26A

Compound: Hydrogen Chloride

Average

RunNumber 1 2 3

Mass_mg 0.126 0.0783 0.0894 0.098

lb/mmBtuO2 8.02E-05 5.00E-05 5.61E-05 0.000

Compound: Hydrogen Fluoride

Average

RunNumber 1 2 3

Mass_mg 0.225 0.207 0.236 0.223

lb/mmBtuO2 1.43E-04 1.32E-04 1.48E-04 0.000

Location: Stack Exit - Method 29

Compound: Antimony

Average

RunNumber 1 2 3

Mass_mg 0.0079 0.0054 0.0051 0.006

lb/mmBtuO2 1.26E-06 1.16E-06 1.10E-06 0.000

Compound: Arsenic

Average

RunNumber 1 2 3

Mass_mg 0.0161 0.0129 0.0152 0.015

lb/mmBtuO2 2.56E-06 2.77E-06 3.29E-06 0.000

Compound: Beryllium

Average

RunNumber 1 2 3

Mass_mg 0.00062 0.00049 0.00063 0.001

lb/mmBtuO2 9.87E-08 1.05E-07 1.36E-07 0.000

Tuesday, February 01, 2011 Page 8 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

Compound: Cadmium

Average

RunNumber 1 2 3

Mass_mg 0.00353 0.00281 0.00253 0.003

lb/mmBtuO2 5.62E-07 6.03E-07 5.48E-07 0.000

Compound: Chromium

Average

RunNumber 1 2 3

Mass_mg 0.027 0.0167 0.0222 0.022

lb/mmBtuO2 4.30E-06 3.58E-06 4.81E-06 0.000

Compound: Cobalt

Average

RunNumber 1 2 3

Mass_mg 0.0019 0.0015 0.00153 0.002

lb/mmBtuO2 3.03E-07 3.22E-07 3.31E-07 0.000

Compound: Filterable Particulate

Average

RunNumber 1 2 3

Mass_mg 144.8 110 103.2 119.333

lb/mmBtuO2 2.31E-02 2.36E-02 2.24E-02 0.023

Compound: Lead

Average

RunNumber 1 2 3

Mass_mg 0.0361 0.0201 0.0196 0.025

lb/mmBtuO2 5.75E-06 4.31E-06 4.25E-06 0.000

Compound: Manganese

Average

RunNumber 1 2 3

Mass_mg 0.1069 0.0811 0.0763 0.088

lb/mmBtuO2 1.70E-05 1.74E-05 1.65E-05 0.000

Compound: Nickel

Average

RunNumber 1 2 3

Mass_mg 0.0259 0.0261 0.0162 0.023

lb/mmBtuO2 4.12E-06 5.60E-06 3.51E-06 0.000

Compound: Selenium

Average

RunNumber 1 2 3

Mass_mg 0.0735 0.1263 0.0475 0.082

lb/mmBtuO2 1.17E-05 2.71E-05 1.03E-05 0.000

Location: Stack Exit - Method 5/OTM-28

Compound: Filterable Particulate

Average

RunNumber 1 2 3

Mass_mg 159.1 106.3 106.8 124.067

Tuesday, February 01, 2011 Page 9 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

Process Run Data

lb/mmBtuO2 2.54E-02 2.47E-02 2.53E-02 0.025

Compound: Inorganic (Aqueous) Condensible Pa

Average

RunNumber 1 2 3

Mass_mg 11.3 7.3 11.2 9.933

lb/mmBtuO2 1.80E-03 1.69E-03 2.66E-03 0.002

Compound: Organic Condensible Particulate

Average

RunNumber 1 2 3

Mass_mg 3.7 2.3 5.8 3.933

lb/mmBtuO2 5.90E-04 5.34E-04 1.38E-03 0.001

Compound: Total Particulate

Average

RunNumber 1 2 3

Mass_mg 174.1 115.9 123.8 137.933

lb/mmBtuO2 2.78E-02 2.69E-02 2.94E-02 0.028

Location: Stack Exit - Method 6C

Compound: Sulfur Dioxide

Average

Run 1 2 3

lb/mmBtuO2 5.74E-02 2.33E-02 5.51E-02 0.045

ppm 2.39E+01 9.73E+00 2.33E+01 18.977

ppm@7%O2 2.34E+01 9.47E+00 2.25E+01 18.457

Location: Stack Exit - Method 7E

Compound: Nitrogen oxides (NOx)

Average

Run 1 2 3

lb/mmBtuO2 1.54E-01 1.57E-01 1.56E-01 0.156

ppm 8.95E+01 9.17E+01 9.16E+01 90.933

ppm@7%O2 8.75E+01 8.93E+01 8.83E+01 88.367

Tuesday, February 01, 2011 Page 10 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

Process Run Data

Run Name Value UOM Comments

Target

Value

1 Heat Input 6097 Million Btus/hr Collected during 

run 1 M26A, 

M7E, and M6C

0

1 Coal FR Mill D 75.73 Klb/hr Collected during 

run 1 M26A, 

M7E, and M6C

0

1 Coal FR Mill C 75.61 Klb/hr Collected during 

run 1 M26A, 

M7E, and M6C

0

2 Heat Input 6097 Million Btus/hr Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Coal FR Mill D 75.63 Klb/hr Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Coal FR Mill C 75.42 Klb/hr Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Coal FR Mill B 75.56 Klb/hr Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Coal FR Mill A 0.18 Klb/hr Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Flue Gas O2 2.79 % Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Furn Press SH/RH 0.272 SH/RH Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Furn Press Fin/SH 0.473 Fin/SH Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Econ SH delta P 1.76 delta P Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Stack SO2 0.03 lb/MMBtu Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Stack NOx 0.156 lb/MMBtu Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Coal FR Mill E 75.7 Klb/hr Collected during 

run 2 M26A, 

M7E, and M6C

0

Tuesday, February 01, 2011 Page 11 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

2 Coal FR Mill F 0.1 Klb/hr Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Coal FR Mill G 75.14 Klb/hr Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Coal FR Mill H 75.81 Klb/hr Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Gross Electric Generation 649.3 GMW Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Coal Firing Rate 912.83 Klb/hr Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Boiler Efficiency 86.63 % Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Opacity 15.03 % Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Sootblower Steam Pressure 555.78 psig Collected during 

run 2 M26A, 

M7E, and M6C

0

2 SA1 amps 249.47 amps Collected during 

run 2 M26A, 

M7E, and M6C

0

2 SA2 amps 257.73 amps Collected during 

run 2 M26A, 

M7E, and M6C

0

2 SA3 amps 255.25 amps Collected during 

run 2 M26A, 

M7E, and M6C

0

2 SA4 amps 250.48 amps Collected during 

run 2 M26A, 

M7E, and M6C

0

2 SA5 amps 257.85 amps Collected during 

run 2 M26A, 

M7E, and M6C

0

2 SA6 amps 258.24 amps Collected during 

run 2 M26A, 

M7E, and M6C

0

2 SA7 amps 0 amps Collected during 

run 2 M26A, 

M7E, and M6C

0

2 SA8 amps 0 amps Collected during 

run 2 M26A, 

M7E, and M6C

0

Tuesday, February 01, 2011 Page 12 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

2 Plumb Bob delta P 0.31 delta P Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Mist Elim delta P 0 delta P Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Rehtr 8 Gas delta P 0 delta P Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Wash Tray 8 delta P 0.096 delta P Collected during 

run 2 M26A, 

M7E, and M6C

0

2 Net Electric Generation 599.3 NMW Collected during 

run 2 M26A, 

M7E, and M6C

0

3 Heat Input 6097 Million Btus/hr Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Coal FR Mill D 75.89 Klb/hr Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Coal FR Mill C 75.58 Klb/hr Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Coal FR Mill B 75.76 Klb/hr Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Coal FR Mill A 0.18 Klb/hr Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Flue Gas O2 2.68 % Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Furn Press SH/RH 0.274 SH/RH Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Furn Press Fin/SH 0.475 Fin/SH Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Econ SH delta P 1.74 delta P Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Stack SO2 0.054 lb/MMBtu Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Stack NOx 0.155 lb/MMBtu Collected during 

run 3 M26A, 

M7E, and M6C

0

Tuesday, February 01, 2011 Page 13 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

3 Coal FR Mill E 75.91 Klb/hr Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Coal FR Mill F 0.1 Klb/hr Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Coal FR Mill G 75.42 Klb/hr Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Coal FR Mill H 75.93 Klb/hr Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Gross Electric Generation 649.3 GMW Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Coal Firing Rate 914.88 Klb/hr Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Boiler Efficiency 86.55 % Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Opacity 15.89 % Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Sootblower Steam Pressure 557.17 psig Collected during 

run 3 M26A, 

M7E, and M6C

0

3 SA1 amps 252.41 amps Collected during 

run 3 M26A, 

M7E, and M6C

0

3 SA2 amps 253.52 amps Collected during 

run 3 M26A, 

M7E, and M6C

0

3 SA3 amps 252.98 amps Collected during 

run 3 M26A, 

M7E, and M6C

0

3 SA4 amps 249.72 amps Collected during 

run 3 M26A, 

M7E, and M6C

0

3 SA5 amps 254.75 amps Collected during 

run 3 M26A, 

M7E, and M6C

0

3 SA6 amps 255.36 amps Collected during 

run 3 M26A, 

M7E, and M6C

0

3 SA7 amps 0 amps Collected during 

run 3 M26A, 

M7E, and M6C

0

Tuesday, February 01, 2011 Page 14 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

3 SA8 amps 0 amps Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Plumb Bob delta P 0.3 delta P Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Mist Elim delta P 0 delta P Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Rehtr 8 Gas delta P 0 delta P Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Wash Tray 8 delta P 0.097 delta P Collected during 

run 3 M26A, 

M7E, and M6C

0

3 Net Electric Generation 599.3 NMW Collected during 

run 3 M26A, 

M7E, and M6C

0

4 Heat Input 6097 Million Btus/hr Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Coal FR Mill D 75.3 Klb/hr Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Coal FR Mill C 75.04 Klb/hr Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Coal FR Mill B 75.09 Klb/hr Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Coal FR Mill A 0.18 Klb/hr Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Flue Gas O2 2.79 % Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Furn Press SH/RH 0.289 SH/RH Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Furn Press Fin/SH 0.48 Fin/SH Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Econ SH delta P 1.73 delta P Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Stack SO2 0.073 lb/MMBtu Collected during 

run 1 M5/29 and 

OTM 27/28

0

Tuesday, February 01, 2011 Page 15 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

4 Stack NOx 0.168 lb/MMBtu Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Coal FR Mill E 75.15 Klb/hr Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Coal FR Mill F 0.08 Klb/hr Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Coal FR Mill G 74.89 Klb/hr Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Coal FR Mill H 75.35 Klb/hr Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Gross Electric Generation 649.3 GMW Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Coal Firing Rate 900.04 Klb/hr Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Boiler Efficiency 86.45 % Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Opacity 17.16 % Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Sootblower Steam Pressure 558.32 psig Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 SA1 amps 250.05 amps Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 SA2 amps 245.66 amps Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 SA3 amps 248.52 amps Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 SA4 amps 251.24 amps Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 SA5 amps 247.21 amps Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 SA6 amps 248.84 amps Collected during 

run 1 M5/29 and 

OTM 27/28

0

Tuesday, February 01, 2011 Page 16 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

4 SA7 amps 0 amps Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 SA8 amps 0 amps Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Plumb Bob delta P 0.32 delta P Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Mist Elim delta P 0 delta P Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Rehtr 8 Gas delta P 0 delta P Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Wash Tray 8 delta P 0.094 delta P Collected during 

run 1 M5/29 and 

OTM 27/28

0

4 Net Electric Generation 599.3 NMW Collected during 

run 1 M5/29 and 

OTM 27/28

0

5 Heat Input 6098 Million Btus/hr Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Coal FR Mill D 66.65 Klb/hr Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Coal FR Mill C 66.5 Klb/hr Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Coal FR Mill B 66.51 Klb/hr Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Coal FR Mill A 66.39 Klb/hr Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Flue Gas O2 2.64 % Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Furn Press SH/RH 0.305 SH/RH Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Furn Press Fin/SH 0.489 Fin/SH Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Econ SH delta P 1.77 delta P Collected during 

run 2 M5/29 and 

OTM 27/28

0

Tuesday, February 01, 2011 Page 17 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

5 Stack SO2 0.099 lb/MMBtu Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Stack NOx 0.188 lb/MMBtu Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Coal FR Mill E 66.57 Klb/hr Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Coal FR Mill F 0.09 Klb/hr Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Coal FR Mill G 66.3 Klb/hr Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Coal FR Mill H 56.4 Klb/hr Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Gross Electric Generation 658.8 GMW Collected during 

run 2 M5/29 and 

OTM 27/28

0

1 Coal FR Mill B 75.63 Klb/hr Collected during 

run 1 M26A, 

M7E, and M6C

0

1 Coal FR Mill A 0.17 Klb/hr Collected during 

run 1 M26A, 

M7E, and M6C

0

5 Coal Firing Rate 908.25 Klb/hr Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Boiler Efficiency 86.72 % Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Opacity 16.62 % Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Sootblower Steam Pressure 559.75 psig Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 SA1 amps 252.1 amps Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 SA2 amps 251.08 amps Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 SA3 amps 250.57 amps Collected during 

run 2 M5/29 and 

OTM 27/28

0

Tuesday, February 01, 2011 Page 18 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

5 SA4 amps 251.51 amps Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 SA5 amps 253.49 amps Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 SA6 amps 252.88 amps Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 SA7 amps 0 amps Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 SA8 amps 0 amps Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Plumb Bob delta P 0.29 delta P Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Mist Elim delta P 0 delta P Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Rehtr 8 Gas delta P 0 delta P Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Wash Tray 8 delta P 0.093 delta P Collected during 

run 2 M5/29 and 

OTM 27/28

0

5 Net Electric Generation 608.8 NMW Collected during 

run 2 M5/29 and 

OTM 27/28

0

6 Heat Input 6098 Million Btus/hr Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Coal FR Mill D 64.32 Klb/hr Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Coal FR Mill C 64.14 Klb/hr Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Coal FR Mill B 64.17 Klb/hr Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Coal FR Mill A 64.23 Klb/hr Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Flue Gas O2 2.84 % Collected during 

run 3 M5/29 and 

OTM 27/28

0

Tuesday, February 01, 2011 Page 19 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

6 Furn Press SH/RH 0.303 SH/RH Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Furn Press Fin/SH 0.468 Fin/SH Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Econ SH delta P 1.72 delta P Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Stack SO2 0.075 lb/MMBtu Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Stack NOx 0.175 lb/MMBtu Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Coal FR Mill E 64.18 Klb/hr Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Coal FR Mill F 0.1 Klb/hr Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Coal FR Mill G 64.02 Klb/hr Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Coal FR Mill H 59.29 Klb/hr Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Gross Electric Generation 658.8 GMW Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Coal Firing Rate 893.93 Klb/hr Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Boiler Efficiency 86.58 % Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Opacity 16.54 % Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Sootblower Steam Pressure 554.9 psig Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 SA1 amps 235.11 amps Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 SA2 amps 251.95 amps Collected during 

run 3 M5/29 and 

OTM 27/28

0

Tuesday, February 01, 2011 Page 20 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

6 SA3 amps 251.82 amps Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 SA4 amps 251.98 amps Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 SA5 amps 249.49 amps Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 SA6 amps 248.89 amps Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 SA7 amps 0 amps Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 SA8 amps 0 amps Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Plumb Bob delta P 0.27 delta P Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Mist Elim delta P 0 delta P Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Rehtr 8 Gas delta P 0 delta P Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Wash Tray 8 delta P 0.092 delta P Collected during 

run 3 M5/29 and 

OTM 27/28

0

6 Net Electric Generation 608.8 NMW Collected during 

run 3 M5/29 and 

OTM 27/28

0

7 Heat Input 6066 Million Btus/hr Collected during 

run 1 M10 and 

M25A

0

7 Coal FR Mill D 64.85 Klb/hr Collected during 

run 1 M10 and 

M25A

0

7 Coal FR Mill C 64.62 Klb/hr Collected during 

run 1 M10 and 

M25A

0

7 Coal FR Mill B 64.73 Klb/hr Collected during 

run 1 M10 and 

M25A

0

7 Coal FR Mill A 64.73 Klb/hr Collected during 

run 1 M10 and 

M25A

0

Tuesday, February 01, 2011 Page 21 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

7 Flue Gas O2 2.9 % Collected during 

run 1 M10 and 

M25A

0

7 Furn Press SH/RH 0.282 SH/RH Collected during 

run 1 M10 and 

M25A

0

7 Furn Press Fin/SH 0.47 Fin/SH Collected during 

run 1 M10 and 

M25A

0

7 Econ SH delta P 1.74 delta P Collected during 

run 1 M10 and 

M25A

0

7 Stack SO2 0.082 lb/MMBtu Collected during 

run 1 M10 and 

M25A

0

7 Stack NOx 0.183 lb/MMBtu Collected during 

run 1 M10 and 

M25A

0

7 Coal FR Mill E 64.66 Klb/hr Collected during 

run 1 M10 and 

M25A

0

7 Coal FR Mill F 0.08 Klb/hr Collected during 

run 1 M10 and 

M25A

0

7 Coal FR Mill G 64.56 Klb/hr Collected during 

run 1 M10 and 

M25A

0

7 Coal FR Mill H 58.73 Klb/hr Collected during 

run 1 M10 and 

M25A

0

7 Gross Electric Generation 655.6 GMW Collected during 

run 1 M10 and 

M25A

0

7 Coal Firing Rate 888.29 Klb/hr Collected during 

run 1 M10 and 

M25A

0

7 Boiler Efficiency 86.67 % Collected during 

run 1 M10 and 

M25A

0

7 Opacity 15.97 % Collected during 

run 1 M10 and 

M25A

0

7 Sootblower Steam Pressure 554.82 psig Collected during 

run 1 M10 and 

M25A

0

7 SA1 amps 254.19 amps Collected during 

run 1 M10 and 

M25A

0

Tuesday, February 01, 2011 Page 22 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

7 SA2 amps 251.31 amps Collected during 

run 1 M10 and 

M25A

0

7 SA3 amps 251.22 amps Collected during 

run 1 M10 and 

M25A

0

7 SA4 amps 243.96 amps Collected during 

run 1 M10 and 

M25A

0

7 SA5 amps 252.09 amps Collected during 

run 1 M10 and 

M25A

0

7 SA6 amps 252.68 amps Collected during 

run 1 M10 and 

M25A

0

7 SA7 amps 0 amps Collected during 

run 1 M10 and 

M25A

0

7 SA8 amps 0 amps Collected during 

run 1 M10 and 

M25A

0

7 Plumb Bob delta P 0.24 delta P Collected during 

run 1 M10 and 

M25A

0

7 Mist Elim delta P 0 delta P Collected during 

run 1 M10 and 

M25A

0

7 Rehtr 8 Gas delta P 0 delta P Collected during 

run 1 M10 and 

M25A

0

7 Wash Tray 8 delta P 0.099 delta P Collected during 

run 1 M10 and 

M25A

0

7 Net Electric Generation 605.6 NMW Collected during 

run 1 M10 and 

M25A

0

8 Heat Input 6066 Million Btus/hr Collected during 

run 2 M10 and 

M25A

0

8 Coal FR Mill D 65.2 Klb/hr Collected during 

run 2 M10 and 

M25A

0

8 Coal FR Mill C 65.03 Klb/hr Collected during 

run 2 M10 and 

M25A

0

8 Coal FR Mill B 65.09 Klb/hr Collected during 

run 2 M10 and 

M25A

0

Tuesday, February 01, 2011 Page 23 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

8 Coal FR Mill A 65.19 Klb/hr Collected during 

run 2 M10 and 

M25A

0

8 Flue Gas O2 2.82 % Collected during 

run 2 M10 and 

M25A

0

8 Furn Press SH/RH 0.3 SH/RH Collected during 

run 2 M10 and 

M25A

0

8 Furn Press Fin/SH 0.46 Fin/SH Collected during 

run 2 M10 and 

M25A

0

8 Econ SH delta P 1.75 delta P Collected during 

run 2 M10 and 

M25A

0

8 Stack SO2 0.08 lb/MMBtu Collected during 

run 2 M10 and 

M25A

0

8 Stack NOx 0.16 lb/MMBtu Collected during 

run 2 M10 and 

M25A

0

8 Coal FR Mill E 65.11 Klb/hr Collected during 

run 2 M10 and 

M25A

0

8 Coal FR Mill F 0.09 Klb/hr Collected during 

run 2 M10 and 

M25A

0

8 Coal FR Mill G 64.81 Klb/hr Collected during 

run 2 M10 and 

M25A

0

8 Coal FR Mill H 58.45 Klb/hr Collected during 

run 2 M10 and 

M25A

0

8 Gross Electric Generation 655.6 GMW Collected during 

run 2 M10 and 

M25A

0

8 Coal Firing Rate 901.41 Klb/hr Collected during 

run 2 M10 and 

M25A

0

8 Boiler Efficiency 86.69 % Collected during 

run 2 M10 and 

M25A

0

8 Opacity 15.63 % Collected during 

run 2 M10 and 

M25A

0

8 Sootblower Steam Pressure 557.31 psig Collected during 

run 2 M10 and 

M25A

0

Tuesday, February 01, 2011 Page 24 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

8 SA1 amps 252.99 amps Collected during 

run 2 M10 and 

M25A

0

8 SA2 amps 249.63 amps Collected during 

run 2 M10 and 

M25A

0

8 SA3 amps 250.4 amps Collected during 

run 2 M10 and 

M25A

0

8 SA4 amps 247.17 amps Collected during 

run 2 M10 and 

M25A

0

8 SA5 amps 251.1 amps Collected during 

run 2 M10 and 

M25A

0

8 SA6 amps 253.15 amps Collected during 

run 2 M10 and 

M25A

0

8 SA7 amps 0 amps Collected during 

run 2 M10 and 

M25A

0

8 SA8 amps 1.11 amps Collected during 

run 2 M10 and 

M25A

0

8 Plumb Bob delta P 0.155 delta P Collected during 

run 2 M10 and 

M25A

0

8 Mist Elim delta P 0 delta P Collected during 

run 2 M10 and 

M25A

0

8 Rehtr 8 Gas delta P 0 delta P Collected during 

run 2 M10 and 

M25A

0

8 Wash Tray 8 delta P 0.057 delta P Collected during 

run 2 M10 and 

M25A

0

8 Net Electric Generation 605.6 NMW Collected during 

run 2 M10 and 

M25A

0

9 Heat Input 6066 Million Btus/hr Collected during 

run 3 M10 and 

M25A

0

9 Coal FR Mill D 66.15 Klb/hr Collected during 

run 3 M10 and 

M25A

0

9 Coal FR Mill C 65.84 Klb/hr Collected during 

run 3 M10 and 

M25A

0

Tuesday, February 01, 2011 Page 25 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

9 Coal FR Mill B 65.94 Klb/hr Collected during 

run 3 M10 and 

M25A

0

9 Coal FR Mill A 66.22 Klb/hr Collected during 

run 3 M10 and 

M25A

0

9 Flue Gas O2 2.91 % Collected during 

run 3 M10 and 

M25A

0

9 Furn Press SH/RH 0.31 SH/RH Collected during 

run 3 M10 and 

M25A

0

9 Furn Press Fin/SH 0.48 Fin/SH Collected during 

run 3 M10 and 

M25A

0

9 Econ SH delta P 1.82 delta P Collected during 

run 3 M10 and 

M25A

0

9 Stack SO2 0.1 lb/MMBtu Collected during 

run 3 M10 and 

M25A

0

9 Stack NOx 0.16 lb/MMBtu Collected during 

run 3 M10 and 

M25A

0

9 Coal FR Mill E 66.1 Klb/hr Collected during 

run 3 M10 and 

M25A

0

9 Coal FR Mill F 0.1 Klb/hr Collected during 

run 3 M10 and 

M25A

0

9 Coal FR Mill G 65.58 Klb/hr Collected during 

run 3 M10 and 

M25A

0

9 Coal FR Mill H 59.19 Klb/hr Collected during 

run 3 M10 and 

M25A

0

1 Flue Gas O2 2.99 % Collected during 

run 1 M26A, 

M7E, and M6C

0

1 Furn Press SH/RH 0.273 SH/RH Collected during 

run 1 M26A, 

M7E, and M6C

0

1 Furn Press Fin/SH 0.471 Fin/SH Collected during 

run 1 M26A, 

M7E, and M6C

0

1 Econ SH delta P 1.76 delta P Collected during 

run 1 M26A, 

M7E, and M6C

0

Tuesday, February 01, 2011 Page 26 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

1 Stack SO2 0.078 lb/MMBtu Collected during 

run 1 M26A, 

M7E, and M6C

0

9 Gross Electric Generation 655.6 GMW Collected during 

run 3 M10 and 

M25A

0

9 Coal Firing Rate 915.13 Klb/hr Collected during 

run 3 M10 and 

M25A

0

9 Boiler Efficiency 86.66 % Collected during 

run 3 M10 and 

M25A

0

9 Opacity 16.16 % Collected during 

run 3 M10 and 

M25A

0

9 Sootblower Steam Pressure 551.5 psig Collected during 

run 3 M10 and 

M25A

0

9 SA1 amps 255.95 amps Collected during 

run 3 M10 and 

M25A

0

9 SA2 amps 254.27 amps Collected during 

run 3 M10 and 

M25A

0

9 SA3 amps 253.62 amps Collected during 

run 3 M10 and 

M25A

0

9 SA4 amps 251.68 amps Collected during 

run 3 M10 and 

M25A

0

9 SA5 amps 255.53 amps Collected during 

run 3 M10 and 

M25A

0

9 SA6 amps 257.35 amps Collected during 

run 3 M10 and 

M25A

0

9 SA7 amps 0 amps Collected during 

run 3 M10 and 

M25A

0

9 SA8 amps 0.14 amps Collected during 

run 3 M10 and 

M25A

0

9 Plumb Bob delta P 0.183 delta P Collected during 

run 3 M10 and 

M25A

0

9 Mist Elim delta P 0 delta P Collected during 

run 3 M10 and 

M25A

0

Tuesday, February 01, 2011 Page 27 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

9 Rehtr 8 Gas delta P 0 delta P Collected during 

run 3 M10 and 

M25A

0

9 Wash Tray 8 delta P 0.043 delta P Collected during 

run 3 M10 and 

M25A

0

9 Net Electric Generation 605.6 NMW Collected during 

run 3 M10 and 

M25A

0

1 Stack NOx 0.151 lb/MMBtu Collected during 

run 1 M26A, 

M7E, and M6C

0

1 Coal FR Mill E 75.59 Klb/hr Collected during 

run 1 M26A, 

M7E, and M6C

0

1 Coal FR Mill F 0.1 Klb/hr Collected during 

run 1 M26A, 

M7E, and M6C

0

1 Coal FR Mill G 75.01 Klb/hr Collected during 

run 1 M26A, 

M7E, and M6C

0

1 Coal FR Mill H 75.74 Klb/hr Collected during 

run 1 M26A, 

M7E, and M6C

0

1 Gross Electric Generation 649.3 GMW Collected during 

run 1 M26A, 

M7E, and M6C

0

1 Coal Firing Rate 900.07 Klb/hr Collected during 

run 1 M26A, 

M7E, and M6C

0

1 Boiler Efficiency 86.85 % Collected during 

run 1 M26A, 

M7E, and M6C

0

1 Opacity 16.6 % Collected during 

run 1 M26A, 

M7E, and M6C

0

1 Sootblower Steam Pressure 560.05 psig Collected during 

run 1 M26A, 

M7E, and M6C

0

1 SA1 amps 251.26 amps Collected during 

run 1 M26A, 

M7E, and M6C

0

1 SA2 amps 253.62 amps Collected during 

run 1 M26A, 

M7E, and M6C

0

1 SA3 amps 251.63 amps Collected during 

run 1 M26A, 

M7E, and M6C

0

Tuesday, February 01, 2011 Page 28 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

APCD Run Data

Process Lab Run Data

1 SA4 amps 250.61 amps Collected during 

run 1 M26A, 

M7E, and M6C

0

1 SA5 amps 255.01 amps Collected during 

run 1 M26A, 

M7E, and M6C

0

1 SA6 amps 254.87 amps Collected during 

run 1 M26A, 

M7E, and M6C

0

1 SA7 amps 0 amps Collected during 

run 1 M26A, 

M7E, and M6C

0

1 SA8 amps 0 amps Collected during 

run 1 M26A, 

M7E, and M6C

0

1 Plumb Bob delta P 0.31 delta P Collected during 

run 1 M26A, 

M7E, and M6C

0

1 Mist Elim delta P 0 delta P Collected during 

run 1 M26A, 

M7E, and M6C

0

1 Rehtr 8 Gas delta P 0 delta P Collected during 

run 1 M26A, 

M7E, and M6C

0

1 Wash Tray 8 delta P 0.094 delta P Collected during 

run 1 M26A, 

M7E, and M6C

0

1 Net Electric Generation 599.3 NMW Collected during 

run 1 M26A, 

M7E, and M6C

0

Run Name Value UOM Comments

Target

Value

1 OVERFIRE AIR 0 0

1 VENTURI SCRUBBER 0 0

1 ACTIVATED CARBON ADSORPTION 0 0

Run Name Value UOM Comments

1 Scrubber pH 7.03 pH

1 Scrubber Total Solids 24.6 %

1 Scrubber Dissolved Solids 6.9 %

1 Scrubber Suspended Solids 17.7 %

Tuesday, February 01, 2011 Page 29 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

2 Scrubber pH 7.1 pH

2 Scrubber Total Solids 23.6 %

2 Scrubber Dissolved Solids 6.7 %

2 Scrubber Suspended Solids 16.9 %

3 Scrubber pH 7.13 pH

3 Scrubber Total Solids 24.5 %

3 Scrubber Dissolved Solids 6.9 %

3 Scrubber Suspended Solids 17.6 %

4 Scrubber pH 7.15 pH

4 Scrubber Total Solids 25.2 %

4 Scrubber Dissolved Solids 7.3 %

4 Scrubber Suspended Solids 17.9 %

Tuesday, February 01, 2011 Page 30 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

Sampling / Stack Data Results Detail

Location Stack Exit - Method 10

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

Tuesday, February 01, 2011 Page 31 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

Location Stack Exit - Method 25A

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

Tuesday, February 01, 2011 Page 32 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

Location Stack Exit - Method 26A

Average

Run Number 1 2 3

Test Date 6/22/2010 6/22/2010 6/22/2010

Run Start Time

Run Finish Time

Net Traversing Points 12 12 12

Net Run Time, minutes 60 60 60

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 1.012 1.012 1.012 1.012

Barometric Pressure, inches of Mercury 26.67 26.52 26.52 26.570

Average Orifice Meter Differential, inches H2O 2.73 2.76 2.75 2.747

Dry Gas Meter Volume Sampled, cubic feet 55.812 56.189 56.745 56.249

Average Dry Gas Meter Temperature, °F 75.67 80.17 81.75 79.197

Dry Gas Meter Volume Sampled, dscf 49.999 49.643 49.987 49.876

Total Moisture Liquid collected, g 221.4 222.5 237 226.967

Volume of Water Vapor, standard cubic feet 10.42 10.47 11.16 10.683

Moisture Content of Stack Gas, % 17.25 17.42 18.25 17.640

Moisture Saturation at Stack Gas Temperature, % 75.86 84.88 84.92 81.887

Dry Mole Fraction 0.8275 0.8258 0.8175 0.824

Carbon Dioxide, % 13.01 13.03 13.17 13.070

Oxygen, % 6.68 6.62 6.48 6.593

Carbon Monoxide & Nitrogen, % 80.31 80.35 80.35 80.337

Fuel Factor 1.09 1.10 1.09

Dry Molecular Weight, lb/lb-Mole 30.35 30.35 30.37 30.357

Wet Molecular weight, lb/lb-Mole 28.22 28.20 28.11 28.177

Flue Gas Static Pressure, inches of H2O -1.8 -1.7 -1.8 -1.767

Absolute Flue Gas Pressure, inches of Mercury 26.54 26.40 26.39 26.443

Average Stack Gas Temperature, °F 192.75 197.83 197.83 196.137

Average Velocity Head, inches of H2O 2.9754414047

616

2.999927628

09127

2.989786570

13163

2.988

Average Stack Gas Velocity, feet/second 115.64 116.92 116.93 116.497

Stack Cross-Sectional Area, square feet 452.389 452.389 452.389 452.389

Dry Volumetric Flow Rate, dry scfm 1,863,656.0 1,856,049.5 1,836,855.7 1,852,187.0

67

Actual Wet Volumetric Flue Gas Flow Rate, acfm 3,138,855.8 3,173,599.3 3,173,870.7 3,162,108.6

00

Percent Isokinetic of Sampling Rate, % 100.6 100.3 102.0 100.967

Percent Excess Air, % 46.0 45.4 44.0 45.133

F-Factor, dscfm/MMBtu @ %O2 9820 9820 9820 9,820.000

Round Duct Diameter, inches 288 288 288

Rectangular Duct Width, inches 0 0 0

Rectangular Duct Length, inches 0 0 0

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Tuesday, February 01, 2011 Page 33 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

Location Stack Exit - 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

Tuesday, February 01, 2011 Page 34 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

Location Stack Exit - 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

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

Tuesday, February 01, 2011 Page 35 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

Location Stack Exit - Method 6C

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

Tuesday, February 01, 2011 Page 36 of 37
Utility Boiler MACT ICR - Colstrip Unit 3

9/3/2010

Location Stack Exit - Method 7E

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

Tuesday, February 01, 2011 Page 37 of 37