Name: Mike O'Brien

Title: Environmental Specialist

Company: Platte River Power Authority

Sign Date: 7/23/2010

Name: Chet Gutwein

Title: Engineer

Company: Airtech Environmental Services Inc.

Sign Date: 7/23/2010

Permitted Facility Representative / Date Testing Company Representative / Date

3190 Platte River Power Authority

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, July 21, 2010 Page 1 of 21
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Facility Information:

Rawhide

2700 East County Road 82

Wellington CO

Contact: Mike O'Brien

Phone: (970) 222-2325

Fax:

Email: obrienm@prpa.org

Testing Company:

Airtech Environmental Services Inc.

5776 Lamar Street

Arvada CO 80002

Contact:Jeff Johnson

Phone: (303) 670-0530

Fax: (303) 670-4130

Email: jjohnson@airtechenv.com

Air Permit Number:

6761

Permitted Source ID/Name:

101 Boiler 101

Permitted Maximum Process Rate:

N/A

Max. Normal Operation Process Rate:

N/A

Target Process Test Rat

N/A

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

 process flow diagram:

The Rawhide Energy Station is a pulverized coal fired steam generating electric utility plant serving Northern 

Colorado. It has a nominal generating capacity of 305 MW (gross) at 100% load and a heat input rate of 2,800 

mmBtu per hour based on a coal feed rate of 157 tons per hour (as received). The coal is typically, as received 8,850 

Btu per pound and contains 0.28% sulfur and 5.3% ash. The boiler is tangentially fired and is equipped with LNC3 

concentric firing low-NOx burners with separated over fire air dampers. The hot boiler flue gas exits the air heater in 

a common inlet duct to the Spray Dry Absorber (SDA) SO2 emissions control inlet manifold. 

The SDA emissions control system is designed to control both SO2 and particulate. The process is based on initial 

absorption of SO2 onto "atomized" alkaline particles injected by the three slurry atomizers. The sulfate-laden flue 

gas particles, along with existing fly ash, are then separated from the flue gas in two fabric filter baghouses before 

passing through the two ID fans and into the common stack breech. The maximum EPA allowable sulfur dioxide 

emission rate is 0.13 lb/mmBtu with at least an 80% reduction of sulfur dioxide in the flue gas. The unit must also 

achieve a State-only SO2 emission limit of 0.09 lbs/mmBtu (calendar-year average) and a State-only NOx limit of 

0.18 lbs/mmBtu (calendar-year average).

Industry/SCC/NAIS 221112

Sampling Location Information:

Test Parameter Information:

AFS #: 0806900053 FRS #: 110000607148

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 240 480 1920 4 0 0 240 12

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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.

The following is a list of the test methods that are to be used for this test program and their respective promulgation 

dates:

Methods 1 through 29 – August 1997

Method 30B – January 2008

Other Test Methods 27 and 28 – April 2009

SW-846 0010 – September 1986

SW-846 0030 – December 1996

Target

Parameter 

Test

Method

Number of

Test Runs

Test Run

Duration

Sample 

Location Points Comments

Stack Exit % H2O Method 1 - 4 6 180 0

Stack Exit Carbon Monoxide Method 10 3 120 0

Total organic 

compounds 

(TOC) as Propane

Stack Exit Method 25A 3 120 0

Stack Exit Hydrogen Fluoride Method 26A 3 180 0

Stack Exit Hydrogen Chloride Method 26A 3 180 0

Filterable PM2.5 OTM - 27/28 3 240 0 Use only for dry stacks. Delete 

Method 5/OTM28 tests.

Stack Exit

Total PM2.5 OTM - 27/28 3 240 0 Use only for dry stacks. Delete 

Method 5/OTM28 tests.

Stack Exit

Organic 

Condensible 

Particulate

OTM - 27/28 3 240 0 Use only for dry stacks. Delete 

Method 5/OTM28 tests.

Stack Exit

Inorganic 

(Aqueous) 

Condensible Part.

OTM - 27/28 3 240 0 Use only for dry stacks. Delete 

Method 5/OTM28 tests.

Stack Exit

Stack Exit Antimony Method 29 3 240 0

Stack Exit Arsenic Method 29 3 240 0

Stack Exit Beryllium Method 29 3 240 0

Stack Exit Cadmium Method 29 3 240 0

Stack Exit Chromium Method 29 3 240 0

Stack Exit Lead Method 29 3 240 0

Stack Exit Manganese Method 29 3 240 0

Stack Exit Nickel Method 29 3 240 0

Filterable 

Particulate

Stack Exit Method 29 3 240 0

Stack Exit Cobalt Method 29 0

Phosphorus 

(yellow or white)

Stack Exit Method 29 0

Stack Exit Selenium Method 29 3 240 0

Nitrogen oxides 

(NOx)

Stack Exit Method 7E 3 180 0

Wednesday, July 21, 2010 Page 3 of 21
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Sampling / Stack Data Results Summary

Location Stack Exit - Method 1 - 4

Average

Run Number 1 2 3 

Test Date 5/7/2010 5/7/2010 5/7/2010 

Run Start Time 8:16:00 AM 11:00:00 

AM

1:50:00 PM 

Run Finish Time 10:30:00 

AM

1:14:00 

PM

4:01:00 PM 

Net Run Time, minutes 120 120 120 

Dry Gas Meter Volume Sampled, dscf 71.147 71.474 72.412 71.678

Moisture Content of Stack Gas, % 14.24 14.38 14.07 14.230

Carbon Dioxide, % 13.2 13.5 13.7 13.467

Oxygen, % 6.3 5.9 6.1 6.100

Average Stack Gas Temperature, °F 200.25 199.42 200.50 200.057

Dry Volumetric Flow Rate, dry scfm 643,526.0 645,586.4 650,324.7 646,479.033

Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,158,681.2 1,162,828.

1

1,169,048.5 1,163,519.26

7

Percent Isokinetic of Sampling Rate, % 104.8 105.0 105.6 105.133

F-Factor, dscfm/MMBtu @ %O2 9612 9602 9582 9,598.667

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Wednesday, July 21, 2010 Page 4 of 21
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Location Stack Exit - Method 1 - 4 3

Average

Run Number 4 5 6 

Test Date 5/7/2010 5/7/2010 5/7/2010 

Run Start Time 8:16:00 AM 11:00:00 

AM

1:50:00 PM 

Run Finish Time 10:30:00 

AM

1:14:00 

PM

4:01:00 PM 

Net Run Time, minutes 120 120 120 

Dry Gas Meter Volume Sampled, dscf 70.581 69.428 71.485 70.498

Moisture Content of Stack Gas, % 14.19 14.24 13.69 14.040

Carbon Dioxide, % 13.2 13.6 13.7 13.500

Oxygen, % 6.3 5.8 6 6.033

Average Stack Gas Temperature, °F 199.08 199.33 198.75 199.053

Dry Volumetric Flow Rate, dry scfm 638,853.0 645,157.8 657,364.7 647,125.167

Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,147,560.0 1,160,000.

7

1,173,383.9 1,160,314.86

7

Percent Isokinetic of Sampling Rate, % 104.8 102.0 103.1 103.300

F-Factor, dscfm/MMBtu @ %O2 9612 9602 9582 9,598.667

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Location Stack Exit - Method 10

Average

Run Number 1 2 3 

Test Date 5/7/2010 5/7/2010 5/7/2010 

Run Start Time 8:16:00 AM 10:58:00 

AM

1:31:00 PM 

Run Finish Time 10:30:00 

AM

1:13:00 

PM

3:04:00 PM 

Carbon Dioxide, % 13.2 13.5 13.7 13.467

Oxygen, % 6.3 5.9 6.1 6.100

Dry Volumetric Flow Rate, dry scfm 643117 645419 650002 646,179.333

F-Factor, dscfm/MMBtu @ %O2 9612 9602 9575 9,596.333

Moisture, % 14.3 14.4 14.1 14.267

Fuel Type Override Override Override 

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Wednesday, July 21, 2010 Page 5 of 21
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Location Stack Exit - Method 25A

Average

Run Number 1 2 3 

Test Date 5/7/2010 5/7/2010 5/7/2010 

Run Start Time 8:14:00 AM 10:59:00 

AM

1:49:00 PM 

Run Finish Time 10:30:00 

AM

1:16:00 

PM

4:00:00 PM 

Carbon Dioxide, % 13.2 13.5 13.7 13.467

Oxygen, % 6.3 5.9 6.1 6.100

Dry Volumetric Flow Rate, dry scfm 643117 645419 650002 646,179.333

F-Factor, dscfm/MMBtu @ %O2 9612 9602 9582 9,598.667

Moisture, % 14.3 14.4 14.1 14.267

Fuel Type Override Override Override 

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Location Stack Exit - Method 26A

Average

Run Number 2 3 4 

Test Date 5/5/2010 5/5/2010 5/6/2010 

Run Start Time 7:58:00 AM 11:29:00 

AM

7:55:00 AM 

Run Finish Time 11:07:00 

AM

2:34:00 

PM

11:03:00 

AM

Net Run Time, minutes 180 180 180 

Dry Gas Meter Volume Sampled, dscf 110.960 100.105 112.607 107.891

Moisture Content of Stack Gas, % 13.05 13.68 13.64 13.457

Carbon Dioxide, % 13.5 13.2 13.5 13.400

Oxygen, % 6.4 6.3 6.3 6.333

Average Stack Gas Temperature, °F 198.67 199.28 201.83 199.927

Dry Volumetric Flow Rate, dry scfm 696,900.8 628,603.5 697,058.5 674,187.600

Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,238,226.3 1,126,071.

5

1,264,992.6 1,209,763.46

7

Percent Isokinetic of Sampling Rate, % 100.6 100.7 102.1 101.133

F-Factor, dscfm/MMBtu @ %O2 9644 9640 9652 9,645.333

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Wednesday, July 21, 2010 Page 6 of 21
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Location Stack Exit - Method 29

Average

Run Number 1 2 3 

Test Date 5/4/2010 5/5/2010 5/6/2010 

Run Start Time 9:30:00 AM 8:10:00 

AM

8:00:00 AM 

Run Finish Time 3:05:00 PM 1:00:00 

PM

1:15:00 PM 

Net Run Time, minutes 240 240 240 

Dry Gas Meter Volume Sampled, dscf 148.249 149.503 164.479 154.077

Moisture Content of Stack Gas, % 12.91 13.67 12.87 13.150

Carbon Dioxide, % 13.5 13.2 13.5 13.400

Oxygen, % 6.4 6.13 6.33 6.287

Average Stack Gas Temperature, °F 199.75 200.42 203.96 201.377

Dry Volumetric Flow Rate, dry scfm 550,581.7 703,439.9 715,641.6 656,554.400

Actual Wet Volumetric Flue Gas Flow Rate, acfm 990,166.3 1,262,165.

2

1,291,382.0 1,181,237.83

3

Percent Isokinetic of Sampling Rate, % 101.8 100.8 109.0 103.867

F-Factor, dscfm/MMBtu @ %O2 9640 9631 9631 9,634.000

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Location Stack Exit - Method 7E

Average

Run Number 2 3 4 

Test Date 5/5/2010 5/5/2010 5/6/2010 

Run Start Time 11:04:00 

AM

11:28:00 

AM

7:55:00 AM 

Run Finish Time 11:07:00 

AM

1:46:00 

PM

11:03:00 

AM

Carbon Dioxide, % 13.5 13.2 13.5 13.400

Oxygen, % 6.4 6.3 6.3 6.333

Dry Volumetric Flow Rate, dry scfm 696928 628339 696742 674,003.000

F-Factor, dscfm/MMBtu @ %O2 9610 9640 9656 9,635.333

Moisture, % 13.1 13.7 13.7 13.500

Fuel Type Override Override Override 

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Wednesday, July 21, 2010 Page 7 of 21
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Location Stack Exit - OTM - 27/28

Average

Run Number 1 2 3 

Test Date 5/4/2010 5/5/2010 5/6/2010 

Run Start Time 9:00:00 AM 8:01:00 

AM

7:55:00 AM 

Run Finish Time 5:08:00 PM 3:43:00 

PM

4:00:00 PM 

Net Run Time, minutes 450 450 450 

Dry Gas Meter Volume Sampled, dscf 118.976 126.335 131.235 125.515

Moisture Content of Stack Gas, % 13.04 13.78 13.95 13.590

Carbon Dioxide, % 13.5 13.2 13.5 13.400

Oxygen, % 6.4 6.27 6.33 6.333

Average Stack Gas Temperature, °F 199.58 201.00 202.83 201.137

Dry Volumetric Flow Rate, dry scfm 547,598.5 724,779.6 719,033.2 663,803.767

Actual Wet Volumetric Flue Gas Flow Rate, acfm 986,019.4 1,303,257.

2

1,311,551.0 1,200,275.86

7

Percent Isokinetic of Sampling Rate, % 94.0 92.9 97.2 94.700

F-Factor, dscfm/MMBtu @ %O2 9656 9642 9629 9,642.333

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Wednesday, July 21, 2010 Page 8 of 21
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Emissions Summary

Location: Stack Exit - Method 1 - 4

Compound: % H2O

Average

RunNumber 1 2 3 

Mass_mg 251000 255000 252000 252,666.667

Location: Stack Exit - Method 1 - 4 3

Compound: % H2O

Average

RunNumber 4 5 6 

Mass_mg 248000 245000 241000 244,666.667

Location: Stack Exit - Method 10

Compound: Carbon Monoxide

Average

Run 1 2 3 

lb/mmBtuO2 3.74E-02 6.05E-02 5.51E-02 0.051

ppm 3.74E+01 6.22E+01 5.61E+01 51.900

ppm@7%O2 3.56E+01 5.76E+01 5.27E+01 48.633

Location: Stack Exit - Method 25A

Compound: Total organic compounds (TOC) as 

Average

Run 1 2 3 

lb/mmBtuO2 1.83E-03 1.79E-03 1.80E-03 0.002

ppm 1.16E+00 1.17E+00 1.16E+00 1.163

ppm@7%O2 1.10E+00 1.08E+00 1.09E+00 1.090

Location: Stack Exit - Method 26A

Compound: Hydrogen Chloride

Average

RunNumber 2 3 4 

Mass_mg 1.82 0.541 0 0.787

lb/mmBtuO2 5.03E-04 1.64E-04 0.00E+00 0.000

mg/dscm 5.79E-01 1.91E-01 0.00E+00 0.257

mg/dscm@7%O2 5.55E-01 1.82E-01 0.00E+00 0.246

Compound: Hydrogen Fluoride

Average

RunNumber 2 3 4 

Mass_mg 0.165 0.156 0 0.107

lb/mmBtuO2 4.56E-05 4.74E-05 0.00E+00 0.000

mg/dscm 5.25E-02 5.50E-02 0.00E+00 0.036

mg/dscm@7%O2 5.03E-02 5.24E-02 0.00E+00 0.034

Location: Stack Exit - Method 29

Compound: Antimony

Average

Wednesday, July 21, 2010 Page 9 of 21
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RunNumber 1 2 3 

Mass_mg 0.000222 0.000286 0.000249 0.000

Elb/hr 1.09E-04 1.78E-04 1.43E-04 0.000

lb/mmBtuO2 4.59E-08 5.75E-08 4.61E-08 0.000

mg/dscm 5.29E-05 6.76E-05 5.35E-05 0.000

mg/dscm@7%O2 5.07E-05 6.36E-05 5.10E-05 0.000

Compound: Arsenic

Average

RunNumber 1 2 3 

Mass_mg 0.000378 0.000341 0.000389 0.000

Elb/hr 1.86E-04 2.12E-04 2.24E-04 0.000

lb/mmBtuO2 7.81E-08 6.85E-08 7.20E-08 0.000

mg/dscm 9.01E-05 8.06E-05 8.35E-05 0.000

mg/dscm@7%O2 8.64E-05 7.59E-05 7.97E-05 0.000

Compound: Beryllium

Average

RunNumber 1 2 3 

Mass_mg 0.000061 0.00005 0.000058 0.000

Elb/hr 3.00E-05 3.11E-05 3.34E-05 0.000

lb/mmBtuO2 1.26E-08 1.00E-08 1.07E-08 0.000

mg/dscm 1.45E-05 1.18E-05 1.25E-05 0.000

mg/dscm@7%O2 1.39E-05 1.11E-05 1.19E-05 0.000

Compound: Cadmium

Average

RunNumber 1 2 3 

Mass_mg 0.000406 0.000435 0.000375 0.000

Elb/hr 1.99E-04 2.71E-04 2.16E-04 0.000

lb/mmBtuO2 8.39E-08 8.74E-08 6.94E-08 0.000

mg/dscm 9.67E-05 1.03E-04 8.05E-05 0.000

mg/dscm@7%O2 9.27E-05 9.69E-05 7.68E-05 0.000

Compound: Chromium

Average

RunNumber 1 2 3 

Mass_mg 0.00181 0.0011 0.00149 0.001

Elb/hr 8.89E-04 6.85E-04 8.58E-04 0.001

lb/mmBtuO2 3.74E-07 2.21E-07 2.76E-07 0.000

mg/dscm 4.31E-04 2.60E-04 3.20E-04 0.000

mg/dscm@7%O2 4.13E-04 2.45E-04 3.05E-04 0.000

Compound: Cobalt

Average

RunNumber 1 2 3 

Mass_mg 0.000524 0.000359 0.000384 0.000

Elb/hr 2.57E-04 2.23E-04 2.21E-04 0.000

lb/mmBtuO2 1.08E-07 7.21E-08 7.11E-08 0.000

mg/dscm 1.25E-04 8.48E-05 8.25E-05 0.000

mg/dscm@7%O2 1.20E-04 7.98E-05 7.87E-05 0.000

Compound: Filterable Particulate

Average

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RunNumber 1 2 3 

Mass_mg 12.4 12.5 9.6 11.500

Elb/hr 6.09E+00 7.78E+00 5.53E+00 6.467

lb/mmBtuO2 2.56E-03 2.51E-03 1.78E-03 0.002

mg/dscm 2.95E+00 2.95E+00 2.06E+00 2.653

mg/dscm@7%O2 2.83E+00 2.78E+00 1.97E+00 2.527

Compound: Lead

Average

RunNumber 1 2 3 

Mass_mg 0.000692 0.000964 0.000326 0.001

Elb/hr 3.40E-04 6.00E-04 1.88E-04 0.000

lb/mmBtuO2 1.43E-07 1.94E-07 6.04E-08 0.000

mg/dscm 1.65E-04 2.28E-04 7.00E-05 0.000

mg/dscm@7%O2 1.58E-04 2.15E-04 6.68E-05 0.000

Compound: Manganese

Average

RunNumber 1 2 3 

Mass_mg 0.0032 0.00181 0.002 0.002

Elb/hr 1.57E-03 1.13E-03 1.15E-03 0.001

lb/mmBtuO2 6.61E-07 3.64E-07 3.70E-07 0.000

mg/dscm 7.62E-04 4.28E-04 4.29E-04 0.001

mg/dscm@7%O2 7.30E-04 4.03E-04 4.09E-04 0.001

Compound: Nickel

Average

RunNumber 1 2 3 

Mass_mg 0.00217 0.000863 0.00131 0.001

Elb/hr 1.07E-03 5.37E-04 7.54E-04 0.001

lb/mmBtuO2 4.48E-07 1.73E-07 2.43E-07 0.000

mg/dscm 5.17E-04 2.04E-04 2.81E-04 0.000

mg/dscm@7%O2 4.96E-04 1.92E-04 2.68E-04 0.000

Compound: Phosphorus (yellow or white)

Average

RunNumber 1 2 3 

Mass_mg 0.299 0.292 0.288 0.293

Elb/hr 1.47E-01 1.82E-01 1.66E-01 0.165

lb/mmBtuO2 6.18E-05 5.87E-05 5.33E-05 0.000

mg/dscm 7.12E-02 6.90E-02 6.18E-02 0.067

mg/dscm@7%O2 6.83E-02 6.49E-02 5.90E-02 0.064

Compound: Selenium

Average

RunNumber 1 2 3 

Mass_mg 0.0002 0.000218 0.0002 0.000

Elb/hr 9.83E-05 1.36E-04 1.15E-04 0.000

lb/mmBtuO2 4.13E-08 4.38E-08 3.70E-08 0.000

mg/dscm 4.76E-05 5.15E-05 4.29E-05 0.000

mg/dscm@7%O2 4.56E-05 4.85E-05 4.09E-05 0.000

Location: Stack Exit - Method 7E

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Compound: Nitrogen oxides (NOx)

Average

Run 2 3 4 

lb/mmBtuO2 1.78E-01 1.71E-01 2.04E-01 0.184

ppm 1.08E+02 1.04E+02 1.24E+02 112.000

ppm@7%O2 1.04E+02 9.90E+01 1.18E+02 107.000

Location: Stack Exit - OTM - 27/28

Compound: Filterable PM2.5

Average

RunNumber 1 2 3 

Mass_mg 0.8 1.2 0 0.667

lb/mmBtuO2 2.06E-04 2.88E-04 0.00E+00 0.000

Compound: Inorganic (Aqueous) Condensible Pa

Average

RunNumber 1 2 3 

Mass_mg 55.8 63.8 43.5 54.367

lb/mmBtuO2 1.44E-02 1.53E-02 1.01E-02 0.013

Compound: Organic Condensible Particulate

Average

RunNumber 1 2 3 

Mass_mg 2.9 4 4.2 3.700

lb/mmBtuO2 7.48E-04 9.61E-04 9.75E-04 0.001

Compound: Total PM2.5

Average

RunNumber 1 2 3 

Mass_mg 59.5 69 47.7 58.733

lb/mmBtuO2 1.53E-02 1.66E-02 1.11E-02 0.014

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Process Run Data

APCD Run Data

Process Lab Run Data

Run Name Value UOM Comments

Target

Value

1 Coal Burned 0.148 1000 Tons/hr 0.15

2 Coal Burned 0.156 1000 Tons/hr 0.15

3 Coal Burned 0.146 1000 Tons/hr 0.15

1 Average Heat Input 2619 MMBtu/hr 2500

2 Average Heat Input 2754 MMBtu/hr 2500

3 Average Heat Input 2583 MMBtu/hr 2500

1 Steam Output 1756 1000 lb steam/hr 1800

2 Steam Output 1883 1000 lb steam/hr 1800

3 Steam Output 1748 1000 lb steam/hr 1800

1 Flue Gas Flow Rate 564156 kscfh 40000

1 Flue Gas Oxygen Content 5.23 % 6

1 Flue Gas Carbon Dioxide Content 14.1 % 14

1 Flue Gas Sampling Point Temperature 204 Deg F 200

1 Unit Net Electric Generation 285 MWh 280

Run Name Value UOM Comments

Target

Value

1 BAGHOUSE 0 lb/mmBtu 0

1 OVERFIRE AIR 0 lb/mmBtu 0

1 SPRAY DRYER 0 lb/mmBtu 0

Wednesday, July 21, 2010 Page 13 of 21
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Sampling / Stack Data Results Detail

Location Stack Exit - Method 1 - 4

Average

Run Number 1 2 3 

Test Date 5/7/2010 5/7/2010 5/7/2010 

Run Start Time 8:16:00 AM 11:00:00 

AM

1:50:00 PM 

Run Finish Time 10:30:00 AM 1:14:00 PM 4:01:00 PM 

Net Traversing Points 12 12 12 

Net Run Time, minutes 120 120 120 

Nozzle Diameter, inches 0.225 0.225 0.225 0.225

Pitot Tube Coefficient 0.84 0.84 0.84 0.840

Dry Gas Meter Calibration Factor 1.0018 1.0018 1.0018 1.002

Barometric Pressure, inches of Mercury 24.25 24.25 24.25 24.250

Average Orifice Meter Differential, inches H2O 1.38 1.40 1.45 1.410

Dry Gas Meter Volume Sampled, cubic feet 86.330 88.050 89.310 87.897

Average Dry Gas Meter Temperature, °F 62.38 70.38 71.08 67.947

Dry Gas Meter Volume Sampled, dscf 71.147 71.474 72.412 71.678

Total Moisture Liquid collected, g 251 255 252 252.667

Volume of Water Vapor, standard cubic feet 11.81 12.00 11.86 11.890

Moisture Content of Stack Gas, % 14.24 14.38 14.07 14.230

Moisture Saturation at Stack Gas Temperature, % 97.26 95.60 97.77 96.877

Dry Mole Fraction 0.8576 0.8562 0.8593 0.858

Carbon Dioxide, % 13.2 13.5 13.7 13.467

Oxygen, % 6.3 5.9 6.1 6.100

Carbon Monoxide & Nitrogen, % 80.5 80.6 80.2 80.433

Fuel Factor 1.11 1.11 1.08 

Dry Molecular Weight, lb/lb-Mole 30.36 30.40 30.44 30.400

Wet Molecular weight, lb/lb-Mole 28.60 28.62 28.69 28.637

Flue Gas Static Pressure, inches of H2O -0.3 -0.3 -0.3 -0.300

Absolute Flue Gas Pressure, inches of Mercury 24.23 24.23 24.23 24.230

Average Stack Gas Temperature, °F 200.25 199.42 200.50 200.057

Average Velocity Head, inches of H2O 0.769 0.776 0.785 0.777

Average Stack Gas Velocity, feet/second 61.47 61.69 62.02 61.727

Stack Cross-Sectional Area, square feet 314.159 314.159 314.159 314.159

Dry Volumetric Flow Rate, dry scfm 643,526.0 645,586.4 650,324.7 646,479.033

Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,158,681.2 1,162,828.1 1,169,048.5 1,163,519.2

67

Percent Isokinetic of Sampling Rate, % 104.8 105.0 105.6 105.133

Percent Excess Air, % 42.1 38.4 40.5 40.333

F-Factor, dscfm/MMBtu @ %O2 9612 9602 9582 9,598.667

Round Duct Diameter, inches 240 240 240 

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

Wednesday, July 21, 2010 Page 14 of 21
3190 Platte River Power Authority

7/23/2010

Location Stack Exit - Method 1 - 4 3

Average

Run Number 4 5 6 

Test Date 5/7/2010 5/7/2010 5/7/2010 

Run Start Time 8:16:00 AM 11:00:00 

AM

1:50:00 PM 

Run Finish Time 10:30:00 AM 1:14:00 PM 4:01:00 PM 

Net Traversing Points 12 12 12 

Net Run Time, minutes 120 120 120 

Nozzle Diameter, inches 0.225 0.225 0.225 0.225

Pitot Tube Coefficient 0.84 0.84 0.84 0.840

Dry Gas Meter Calibration Factor 1.0163 1.0163 1.0163 1.016

Barometric Pressure, inches of Mercury 24.25 24.25 24.25 24.250

Average Orifice Meter Differential, inches H2O 1.32 1.31 1.43 1.353

Dry Gas Meter Volume Sampled, cubic feet 84.820 85.100 87.700 85.873

Average Dry Gas Meter Temperature, °F 64.75 75.21 75.88 71.947

Dry Gas Meter Volume Sampled, dscf 70.581 69.428 71.485 70.498

Total Moisture Liquid collected, g 248 245 241 244.667

Volume of Water Vapor, standard cubic feet 11.67 11.53 11.34 11.513

Moisture Content of Stack Gas, % 14.19 14.24 13.69 14.040

Moisture Saturation at Stack Gas Temperature, % 94.93 95.42 94.28 94.877

Dry Mole Fraction 0.8581 0.8576 0.8631 0.860

Carbon Dioxide, % 13.2 13.6 13.7 13.500

Oxygen, % 6.3 5.8 6 6.033

Carbon Monoxide & Nitrogen, % 80.5 80.6 80.3 80.467

Fuel Factor 1.11 1.11 1.09 

Dry Molecular Weight, lb/lb-Mole 30.36 30.41 30.43 30.400

Wet Molecular weight, lb/lb-Mole 28.61 28.64 28.73 28.660

Flue Gas Static Pressure, inches of H2O -0.3 -0.3 -0.3 -0.300

Absolute Flue Gas Pressure, inches of Mercury 24.23 24.23 24.23 24.230

Average Stack Gas Temperature, °F 199.08 199.33 198.75 199.053

Average Velocity Head, inches of H2O 0.756 0.773 0.794 0.774

Average Stack Gas Velocity, feet/second 60.88 61.54 62.25 61.557

Stack Cross-Sectional Area, square feet 314.159 314.159 314.159 314.159

Dry Volumetric Flow Rate, dry scfm 638,853.0 645,157.8 657,364.7 647,125.167

Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,147,560.0 1,160,000.7 1,173,383.9 1,160,314.8

67

Percent Isokinetic of Sampling Rate, % 104.8 102.0 103.1 103.300

Percent Excess Air, % 42.1 37.5 39.5 39.700

F-Factor, dscfm/MMBtu @ %O2 9612 9602 9582 9,598.667

Round Duct Diameter, inches 240 240 240 

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

Wednesday, July 21, 2010 Page 15 of 21
3190 Platte River Power Authority

7/23/2010

Location Stack Exit - Method 10

Average

Run Number 1 2 3 

Test Date 5/7/2010 5/7/2010 5/7/2010 

Run Start Time 8:16:00 AM 10:58:00 

AM

1:31:00 PM 

Run Finish Time 10:30:00 AM 1:13:00 PM 3:04:00 PM 

Carbon Dioxide, % 13.2 13.5 13.7 13.467

Oxygen, % 6.3 5.9 6.1 6.100

Fuel Factor 1.11 1.11 1.08 

Dry Volumetric Flow Rate, dry scfm 643117 645419 650002 646,179.333

F-Factor, dscfm/MMBtu @ %O2 9612 9602 9575 9,596.333

Moisture, % 14.3 14.4 14.1 14.267

Analyzer Make #Num!

Analyzer Model #Num!

Analyzer Serial Number #Num!

Operating Range 1000 1000 1000 1,000.000

Operating Units ppm ppm ppm 

No. Readings/Avg. 600 600 600 600.000

Calibration Set 10 10 10 10.000

Calibration Pre Zero Cylinder ID Zero Zero Zero 

Calibration Pre Zero Cylinder Instrument Response -0.1 0 -0.2 -0.100

Calibration Pre Zero Cylinder Bias 0 0.1 -0.1 0.000

Calibration Pre Zero Cylinder Drift 0 0 0 0.000

Calibration Pre High Cylinder ID XC030124B XC030124B XC030124B 

Calibration Pre High Cylinder Instrument Response 48.9 50.5 51.1 50.167

Calibration Pre High Cylinder Bias 0 1.58 2.17 1.250

Calibration Pre High Cylinder Drift 0 0 0 0.000

Calibration Post Zero Cylinder ID Zero Zero Zero 

Calibration Post Zero Cylinder Instrument Response 0 -0.2 0.6 0.133

Calibration Post Zero Cylinder Bias 0.1 -0.1 0.69 0.230

Calibration Post Zero Cylinder Drift 0.1 0.2 0.79 0.363

Calibration Post High Cylinder ID XC030124B XC030124B XC030124B 

Calibration Post High Cylinder Instrument Response 50.5 51.1 54.1 51.900

Calibration Post High Cylinder Bias 1.58 2.17 5.12 2.957

Calibration Post High Cylinder Drift 1.58 0.59 2.95 1.707

Cavg 32.2 54.8 51.3 46.100

Cavg Units ppmvw ppmvw ppmvw 

Cgas 37.3514 62.2203 56.0593 51.877

Cgas Units ppmvd ppmvd ppmvd 

Fuel Type Override Override Override 

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Cgasw 32.010150753

7688

53.26055009

82318

48.15492366

41221

44.475

Cgasw Units ppmvw ppmvw ppmvw 

Wednesday, July 21, 2010 Page 16 of 21
3190 Platte River Power Authority

7/23/2010

Location Stack Exit - Method 25A

Average

Run Number 1 2 3 

Test Date 5/7/2010 5/7/2010 5/7/2010 

Run Start Time 8:14:00 AM 10:59:00 

AM

1:49:00 PM 

Run Finish Time 10:30:00 AM 1:16:00 PM 4:00:00 PM 

Carbon Dioxide, % 13.2 13.5 13.7 13.467

Oxygen, % 6.3 5.9 6.1 6.100

Fuel Factor 1.11 1.11 1.08 

Dry Volumetric Flow Rate, dry scfm 643117 645419 650002 646,179.333

F-Factor, dscfm/MMBtu @ %O2 9612 9602 9582 9,598.667

Moisture, % 14.3 14.4 14.1 14.267

Analyzer Make #Num!

Analyzer Model #Num!

Analyzer Serial Number #Num!

Operating Range 1000 1000 1000 1,000.000

Operating Units ppm ppm ppm 

No. Readings/Avg. 600 600 600 600.000

Calibration Set 25 25 25 25.000

Calibration Pre Zero Cylinder ID Zero Zero Zero 

Calibration Pre Zero Cylinder Instrument Response 0 0 0 0.000

Calibration Pre Zero Cylinder Bias 0.33 0 0 0.110

Calibration Pre Zero Cylinder Drift 0 0 0 0.000

Calibration Pre High Cylinder ID CC52193 CC52193 CC52193 

Calibration Pre High Cylinder Instrument Response 30.2 30.2 30.2 30.200

Calibration Pre High Cylinder Bias 2.32 0 0 0.773

Calibration Pre High Cylinder Drift 0 0 0 0.000

Calibration Post Zero Cylinder ID Zero Zero Zero 

Calibration Post Zero Cylinder Instrument Response 0 0 0 0.000

Calibration Post Zero Cylinder Bias 0 0 0 0.000

Calibration Post Zero Cylinder Drift 0.33 0 0 0.110

Calibration Post High Cylinder ID CC52193 CC52193 CC52193 

Calibration Post High Cylinder Instrument Response 30.2 30.2 30.2 30.200

Calibration Post High Cylinder Bias 2.32 0 0 0.773

Calibration Post High Cylinder Drift 2.32 0 0 0.773

Cavg 1 1 1 1.000

Cavg Units ppmvw ppmvw ppmvw 

Cgas 1.1649 1.1663 1.1622 1.164

Cgas Units ppmvd ppmvd ppmvd 

Fuel Type Override Override Override 

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Cgasw 0.9983443708

60927

0.998344370

860927

0.998344370

860927

0.998

Cgasw Units ppmvw ppmvw ppmvw 

Wednesday, July 21, 2010 Page 17 of 21
3190 Platte River Power Authority

7/23/2010

Location Stack Exit - Method 26A

Average

Run Number 2 3 4 

Test Date 5/5/2010 5/5/2010 5/6/2010 

Run Start Time 7:58:00 AM 11:29:00 

AM

7:55:00 AM 

Run Finish Time 11:07:00 AM 2:34:00 PM 11:03:00 AM 

Net Traversing Points 18 18 18 

Net Run Time, minutes 180 180 180 

Nozzle Diameter, inches 0.225 0.225 0.225 0.225

Pitot Tube Coefficient 0.84 0.84 0.84 0.840

Dry Gas Meter Calibration Factor 1.0045 1.0045 1.0045 1.005

Barometric Pressure, inches of Mercury 24.15 24.15 23.94 24.080

Average Orifice Meter Differential, inches H2O 1.77 1.47 1.82 1.687

Dry Gas Meter Volume Sampled, cubic feet 140.770 128.580 143.300 137.550

Average Dry Gas Meter Temperature, °F 86.03 92.33 83.06 87.140

Dry Gas Meter Volume Sampled, dscf 110.960 100.105 112.607 107.891

Total Moisture Liquid collected, g 354 337 378 356.333

Volume of Water Vapor, standard cubic feet 16.66 15.86 17.79 16.770

Moisture Content of Stack Gas, % 13.05 13.68 13.64 13.457

Moisture Saturation at Stack Gas Temperature, % 94.39 95.60 101.75 97.247

Dry Mole Fraction 0.8695 0.8632 0.8636 0.865

Carbon Dioxide, % 13.5 13.2 13.5 13.400

Oxygen, % 6.4 6.3 6.3 6.333

Carbon Monoxide & Nitrogen, % 80.1 80.5 80.2 80.267

Fuel Factor 1.07 1.11 1.08 

Dry Molecular Weight, lb/lb-Mole 30.42 30.36 30.41 30.397

Wet Molecular weight, lb/lb-Mole 28.80 28.67 28.72 28.730

Flue Gas Static Pressure, inches of H2O 0.1 0.1 -0.2 0.000

Absolute Flue Gas Pressure, inches of Mercury 24.16 24.16 23.93 24.083

Average Stack Gas Temperature, °F 198.67 199.28 201.83 199.927

Average Velocity Head, inches of H2O 0.884 0.727 0.907 0.839

Average Stack Gas Velocity, feet/second 65.69 59.74 67.11 64.180

Stack Cross-Sectional Area, square feet 314.159 314.159 314.159 314.159

Dry Volumetric Flow Rate, dry scfm 696,900.8 628,603.5 697,058.5 674,187.600

Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,238,226.3 1,126,071.5 1,264,992.6 1,209,763.4

67

Percent Isokinetic of Sampling Rate, % 100.6 100.7 102.1 101.133

Percent Excess Air, % 43.4 42.1 42.4 42.633

F-Factor, dscfm/MMBtu @ %O2 9644 9640 9652 9,645.333

Round Duct Diameter, inches 240 240 240 

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

Wednesday, July 21, 2010 Page 18 of 21
3190 Platte River Power Authority

7/23/2010

Location Stack Exit - Method 29

Average

Run Number 1 2 3 

Test Date 5/4/2010 5/5/2010 5/6/2010 

Run Start Time 9:30:00 AM 8:10:00 AM 8:00:00 AM 

Run Finish Time 3:05:00 PM 1:00:00 PM 1:15:00 PM 

Net Traversing Points 12 12 12 

Net Run Time, minutes 240 240 240 

Nozzle Diameter, inches 0.252 0.225 0.225 0.234

Pitot Tube Coefficient 0.84 0.84 0.84 0.840

Dry Gas Meter Calibration Factor 1.0018 1.0018 1.0018 1.002

Barometric Pressure, inches of Mercury 23.89 24.15 23.94 23.993

Average Orifice Meter Differential, inches H2O 1.53 1.66 1.90 1.697

Dry Gas Meter Volume Sampled, cubic feet 188.250 190.340 207.810 195.467

Average Dry Gas Meter Temperature, °F 78.83 86.31 77.85 80.997

Dry Gas Meter Volume Sampled, dscf 148.249 149.503 164.479 154.077

Total Moisture Liquid collected, g 467 503 516 495.333

Volume of Water Vapor, standard cubic feet 21.98 23.68 24.29 23.317

Moisture Content of Stack Gas, % 12.91 13.67 12.87 13.150

Moisture Saturation at Stack Gas Temperature, % 97.71 97.89 106.30 100.633

Dry Mole Fraction 0.8709 0.8633 0.8713 0.869

Carbon Dioxide, % 13.5 13.2 13.5 13.400

Oxygen, % 6.4 6.13 6.33 6.287

Carbon Monoxide & Nitrogen, % 80.1 80.67 80.17 80.313

Fuel Factor 1.07 1.12 1.08 

Dry Molecular Weight, lb/lb-Mole 30.42 30.36 30.41 30.397

Wet Molecular weight, lb/lb-Mole 28.82 28.67 28.81 28.767

Flue Gas Static Pressure, inches of H2O -0.3 0.1 -0.2 -0.133

Absolute Flue Gas Pressure, inches of Mercury 23.87 24.16 23.93 23.987

Average Stack Gas Temperature, °F 199.75 200.42 203.96 201.377

Average Velocity Head, inches of H2O 0.558 0.912 0.945 0.805

Average Stack Gas Velocity, feet/second 52.53 66.96 68.51 62.667

Stack Cross-Sectional Area, square feet 314.159 314.159 314.159 314.159

Dry Volumetric Flow Rate, dry scfm 550,581.7 703,439.9 715,641.6 656,554.400

Actual Wet Volumetric Flue Gas Flow Rate, acfm 990,166.3 1,262,165.2 1,291,382.0 1,181,237.8

33

Percent Isokinetic of Sampling Rate, % 101.8 100.8 109.0 103.867

Percent Excess Air, % 43.4 40.4 42.7 42.167

F-Factor, dscfm/MMBtu @ %O2 9640 9631 9631 9,634.000

Round Duct Diameter, inches 240 240 240 

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

Wednesday, July 21, 2010 Page 19 of 21
3190 Platte River Power Authority

7/23/2010

Location Stack Exit - Method 7E

Average

Run Number 2 3 4 

Test Date 5/5/2010 5/5/2010 5/6/2010 

Run Start Time 11:04:00 AM 11:28:00 

AM

7:55:00 AM 

Run Finish Time 11:07:00 AM 1:46:00 PM 11:03:00 AM 

Carbon Dioxide, % 13.5 13.2 13.5 13.400

Oxygen, % 6.4 6.3 6.3 6.333

Fuel Factor 1.07 1.11 1.08 

Dry Volumetric Flow Rate, dry scfm 696928 628339 696742 674,003.000

F-Factor, dscfm/MMBtu @ %O2 9610 9640 9656 9,635.333

Moisture, % 13.1 13.7 13.7 13.500

Analyzer Make #Num!

Analyzer Model #Num!

Analyzer Serial Number #Num!

Operating Range 1000 1000 1000 1,000.000

Operating Units ppm ppm ppm 

No. Readings/Avg. 600 600 600 600.000

Calibration Set 71 71 72 71.333

Calibration Pre Zero Cylinder ID Zero Zero Zero 

Calibration Pre Zero Cylinder Instrument Response -0.8 0.3 -0.7 -0.400

Calibration Pre Zero Cylinder Bias 0 0.61 0 0.203

Calibration Pre Zero Cylinder Drift 0 0 0 0.000

Calibration Pre High Cylinder ID AAL933 AAL933 AAL933 

Calibration Pre High Cylinder Instrument Response 176 210 169 185.000

Calibration Pre High Cylinder Bias 0 18.99 0 6.330

Calibration Pre High Cylinder Drift 0 0 0 0.000

Calibration Post Zero Cylinder ID Zero Zero Zero 

Calibration Post Zero Cylinder Instrument Response 0.3 0.1 -0.8 -0.133

Calibration Post Zero Cylinder Bias 0.61 0.5 -0.06 0.350

Calibration Post Zero Cylinder Drift 0.61 0.11 0.06 0.260

Calibration Post High Cylinder ID AAL933 AAL933 AAL933

Calibration Post High Cylinder Instrument Response 210 206 174 196.667

Calibration Post High Cylinder Bias 18.99 16.76 2.79 12.847

Calibration Post High Cylinder Drift 18.99 2.23 2.79 8.003

Cavg 101 104 102 102.333

Cavg Units ppmvw ppmvw ppmvw 

Cgas 107.9217 103.6082 123.7271 111.752

Cgas Units ppmvd ppmvd ppmvd 

Fuel Type Override Override Override 

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Cgasw 93.783958602

8461

89.41385948

02695

106.7764876

6328

96.658

Cgasw Units ppmvw ppmvw ppmvw 

Wednesday, July 21, 2010 Page 20 of 21
3190 Platte River Power Authority

7/23/2010

Location Stack Exit - OTM - 27/28

Average

Run Number 1 2 3 

Test Date 5/4/2010 5/5/2010 5/6/2010 

Run Start Time 9:00:00 AM 8:01:00 AM 7:55:00 AM 

Run Finish Time 5:08:00 PM 3:43:00 PM 4:00:00 PM 

Net Traversing Points 12 12 12 

Net Run Time, minutes 450 450 450 

Nozzle Diameter, inches 0.172 0.155 0.155 0.161

Pitot Tube Coefficient 0.84 0.84 0.84 0.840

Dry Gas Meter Calibration Factor 1.0163 1.0163 1.0163 1.016

Barometric Pressure, inches of Mercury 23.89 24.15 23.94 23.993

Average Orifice Meter Differential, inches H2O 0.35 0.35 0.36 0.353

Dry Gas Meter Volume Sampled, cubic feet 149.510 161.190 164.770 158.490

Average Dry Gas Meter Temperature, °F 79.00 93.21 79.67 83.960

Dry Gas Meter Volume Sampled, dscf 118.976 126.335 131.235 125.515

Total Moisture Liquid collected, g 379 429 452 420.000

Volume of Water Vapor, standard cubic feet 17.84 20.19 21.28 19.770

Moisture Content of Stack Gas, % 13.04 13.78 13.95 13.590

Moisture Saturation at Stack Gas Temperature, % 97.37 99.07 103.86 100.100

Dry Mole Fraction 0.8696 0.8622 0.8605 0.864

Carbon Dioxide, % 13.5 13.2 13.5 13.400

Oxygen, % 6.4 6.27 6.33 6.333

Carbon Monoxide & Nitrogen, % 80.1 80.53 80.17 80.267

Fuel Factor 1.07 1.11 1.08 

Dry Molecular Weight, lb/lb-Mole 30.42 30.36 30.41 30.397

Wet Molecular weight, lb/lb-Mole 28.80 28.66 28.68 28.713

Flue Gas Static Pressure, inches of H2O -0.3 0.1 -0.2 -0.133

Absolute Flue Gas Pressure, inches of Mercury 23.87 24.16 23.93 23.987

Average Stack Gas Temperature, °F 199.58 201.00 202.83 201.137

Average Velocity Head, inches of H2O 0.553 0.971 0.972 0.832

Average Stack Gas Velocity, feet/second 52.31 69.14 69.58 63.677

Stack Cross-Sectional Area, square feet 314.159 314.159 314.159 314.159

Dry Volumetric Flow Rate, dry scfm 547,598.5 724,779.6 719,033.2 663,803.767

Actual Wet Volumetric Flue Gas Flow Rate, acfm 986,019.4 1,303,257.2 1,311,551.0 1,200,275.8

67

Percent Isokinetic of Sampling Rate, % 94.0 92.9 97.2 94.700

Percent Excess Air, % 43.4 41.8 42.7 42.633

F-Factor, dscfm/MMBtu @ %O2 9656 9642 9629 9,642.333

Round Duct Diameter, inches 240 240 240 

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

Wednesday, July 21, 2010 Page 21 of 21