Name: Matt Greek

Title: Vice President

Company: RRI Energy

Sign Date:

Name: Carl Vineyard

Title: Utility MACT Program Manager

Company: Grace Consulting, Inc.

Sign Date: 7/16/2010

Permitted Facility Representative / Date Testing Company Representative / Date

RRI Energy, Elrama Power Plant

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 30
RRI Energy, Elrama Power Plant

Facility Information:

Elrama Power Plant

30 Duquesne Light Way

Elrama PA 150380800

Contact: Shawn Stenlake

Phone: 570-897-2140

Fax: 570-897-2110

Email: sstenlake@rrienergy.com

Testing Company:

Grace Consulting, Inc.

510 Dickson St

PO Box 58

Wellington OH 44090

Contact:Carl Vineyard

Phone: 440-647-6672

Fax: 440-647-6673

Email: carlvineyard@gcitest.com

Air Permit Number:

63-0014

Permitted Source ID/Name:

ElramaCS Elrama Power Plant Units 1, 2, 3 and 4

Permitted Maximum Process Rate:

1921 mmBtu/hr

Max. Normal Operation Process Rate:

1900 mmBtu/hr

Target Process Test Rate

1900 mmBtu/hr

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

 process flow diagram:

Unit 3 and 4 are pulverized Coal Boilers with Mechanical collectors and Electrostatic Precipitators for Particulate 

control and ducted to a common Venturi-type scrubber for additional particulate control and SO2 control. Exhaust 

gases are discharged into the atmospere through a single exhaust stack.

Industry/SCC/NAIS 221112

Sampling Location Information:

Test Parameter Information:

AFS #: 4212500012 FRS #: 110000582995

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

Common Stack 327.25 0 0 0 2760 1560 4 24

Target

Parameter 

Test

Method

Number of

Test Runs

Test Run

Duration

Sample 

Location Points Comments

Common StackCarbon Monoxide Method 10 3 120 0

Total organic compounds 

(TOC) as Propane

Common Stack Method 25A 6 60 0

Common Stack Hydrogen Chloride Method 26A 3 180 0

Common Stack Hydrogen Fluoride Method 26A 3 180 0

Common Stack Filterable Particulate Method 26A 3 180 0

Regulation Description Compound Limit Unit

TVOP-63-0014 0

Monday, February 14, 2011 Page 2 of 30
RRI Energy, Elrama Power Plant

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.

Method 033 used for HCN with one hour test runs and 6N NaOH per EPA Directions.

Common StackBeryllium Method 29 3 240 0

Common Stack Arsenic Method 29 3 240 0

Common StackCadmium Method 29 3 240 0

Common StackCobalt Method 29 3 240 0

Common StackChromium Method 29 3 240 0

Common Stack Nickel Method 29 3 240 0

Common Stack Lead Method 29 3 240 0

Common Stack Phosphorus (yellow or white) Method 29 3 240 0

Common Stack Selenium Method 29 3 240 0

Common Stack Manganese Method 29 3 240 0

Common Stack Mercury Method 29 3 240 0

Common Stack Filterable Particulate Method 29 3 240 0

Common Stack Antimony Method 29 3 240 0

Common StackCo2 Method 3A CO2 9 120 0

Common Stack O2 Method 3A O2 9 120 0

Common Stack Total Particulate Method 5/OTM-28 3 480 0

Organic Condensible 

Particulate

Common Stack Method 5/OTM-28 3 480 0

Inorganic (Aqueous) 

Condensible Part.

Common Stack Method 5/OTM-28 3 480 0

Common Stack Filterable Particulate Method 5/OTM-28 3 480 0

Monday, February 14, 2011 Page 3 of 30
RRI Energy, Elrama Power Plant

Sampling / Stack Data Results Summary

Location Common Stack - Method 10

Average

Run Number 1 2 3

Test Date 4/26/2010 4/26/2010 4/26/2010

Run Start Time 10:35:00 AM 2:35:00 PM 5:35:00 PM

Run Finish Time 1:05:00 PM 5:20:00 PM 7:55:00 PM

Carbon Dioxide, % 6.4 6.5 6.5 6.467

Oxygen, % 13.4 13.3 13.3 13.333

Dry Volumetric Flow Rate, dry scfm 876092 844621 854407 858,373.333

F-Factor, dscfm/MMBtu @ %O2 9804 9777 9816 9,799.000

Moisture, % 6.33 8.57 9.25 8.050

Fuel Type Override Override Override

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Location Common Stack - Method 25A

Average

Run Number 1 2 3

Test Date 4/26/2010 4/26/2010 4/26/2010

Run Start Time 10:30:00 AM 2:35:00 PM 5:35:00 PM

Run Finish Time 11:30:00 AM 3:35:00 PM 6:35:00 PM

Carbon Dioxide, % 6.4 13.3 6.5 8.733

Oxygen, % 13.4 6.5 13.3 11.067

Dry Volumetric Flow Rate, dry scfm 876092 844621 854407 858,373.333

F-Factor, dscfm/MMBtu @ %O2 9804 9777 9816 9,799.000

Moisture, % 6.33 8.57 9.25 8.050

Fuel Type Override Override Override

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Monday, February 14, 2011 Page 4 of 30
RRI Energy, Elrama Power Plant

Location Common Stack - Method 26A

Average

Run Number 1 2 3

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

Run Start Time 1:55:00 PM 8:45:00 

AM

12:30:00 PM

Run Finish Time 4:47:30 PM 12:08:30 

PM

3:42:30 PM

Net Run Time, minutes 180 180 180

Dry Gas Meter Volume Sampled, dscf 169.765 163.937 166.426 166.709

Moisture Content of Stack Gas, % 7.50 6.27 8.35 7.373

Moisture Saturation at Stack Gas Temperature, % 9.71 9.86 9.34 9.637

Carbon Dioxide, % 7.2 7.1 7 7.100

Oxygen, % 12.9 12.6 12.6 12.700

Average Stack Gas Temperature, °F 112.46 113.29 111.42 112.390

Dry Volumetric Flow Rate, dry scfm 1,037,801.5 1,034,302.7 1,010,930.4 1,027,678.20

0

Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,269,013.5 1,239,574.9 1,235,018.9 1,247,869.10

0

Percent Isokinetic of Sampling Rate, % 98.7 95.6 99.3 97.867

F-Factor, dscfm/MMBtu @ %O2 9813 9718 9708 9,746.333

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Monday, February 14, 2011 Page 5 of 30
RRI Energy, Elrama Power Plant

Location Common Stack - Method 29

Average

Run Number 1 2 3

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

Run Start Time 11:50:00 AM 8:30:00 

AM

2:40:00 PM

Run Finish Time 4:40:00 PM 12:50:00 

PM

7:05:00 PM

Net Run Time, minutes 240 240 240

Dry Gas Meter Volume Sampled, dscf 204.061 211.091 208.015 207.722

Moisture Content of Stack Gas, % 9.25 7.90 8.57 8.573

Moisture Saturation at Stack Gas Temperature, % 8.81 8.72 9.33 8.953

Carbon Dioxide, % 7.2 7.2 7.2 7.200

Oxygen, % 13 12.9 12.9 12.933

Average Stack Gas Temperature, °F 109.25 108.75 111.08 109.693

Dry Volumetric Flow Rate, dry scfm 1,034,393.2 1,043,788.1 1,023,447.9 1,033,876.40

0

Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,270,064.9 1,273,569.5 1,263,055.7 1,268,896.70

0

Percent Isokinetic of Sampling Rate, % 96.5 98.9 99.4 98.267

F-Factor, dscfm/MMBtu @ %O2 9817 9669 9813 9,766.333

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Location Common Stack - Method 3A CO2

Average

Run Number 1 10 11

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

Run Start Time 9:00:00 AM 11:50:00 

AM

2:55:00 PM

Run Finish Time 12:00:00 PM 2:50:00 PM 3:42:00 PM

Carbon Dioxide, % 7.2 7 6.9 7.033

Oxygen, % 12.95 12.6 12.6 12.717

Dry Volumetric Flow Rate, dry scfm 1106383 1139870 1140305 1,128,852.66

7

F-Factor, dscfm/MMBtu @ %O2 9817 9729 9708 9,751.333

Moisture, % 8.82 10.24 10.31 9.790

Fuel Type Override Override Override

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Monday, February 14, 2011 Page 6 of 30
RRI Energy, Elrama Power Plant

Location Common Stack - Method 3A CO2 3

Average

Run Number 12 13 14

Test Date 4/26/2010 4/26/2010 4/26/2010

Run Start Time 10:35:00 AM 2:35:00 PM 5:35:00 PM

Run Finish Time 1:05:00 PM 5:20:00 PM 7:55:00 PM

Carbon Dioxide, % 6.4 6.5 6.5 6.467

Oxygen, % 13.4 13.3 13.3 13.333

Dry Volumetric Flow Rate, dry scfm 876092 844621 854407 858,373.333

F-Factor, dscfm/MMBtu @ %O2 9804 9777 9816 9,799.000

Moisture, % 6.33 8.57 9.25 8.050

Fuel Type Override Override Override

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Location Common Stack - Method 3A CO2 3 6

Average

Run Number 2 3 4

Test Date 4/21/2010 4/21/2010 4/21/2010

Run Start Time 12:05:00 PM 3:10:00 PM 6:15:00 PM

Run Finish Time 3:05:00 PM 7:30:00 PM 7:30:00 PM

Carbon Dioxide, % 7.2 7.15 7.15 7.167

Oxygen, % 13 13.05 13.05 13.033

Dry Volumetric Flow Rate, dry scfm 1136424 1012889 1012889 1,054,067.33

3

F-Factor, dscfm/MMBtu @ %O2 9817 9774 9774 9,788.333

Moisture, % 9.26 7.89 7.89 8.347

Fuel Type Override Override Override

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Monday, February 14, 2011 Page 7 of 30
RRI Energy, Elrama Power Plant

Location Common Stack - Method 3A CO2 3 6 9

Average

Run Number 5 6 7

Test Date 4/22/2010 4/22/2010 4/22/2010

Run Start Time 8:30:00 AM 11:35:00 

AM

2:40:00 PM

Run Finish Time 11:30:00 AM 2:35:00 PM 5:40:00 PM

Carbon Dioxide, % 7.2 7.2 7.2 7.200

Oxygen, % 12.9 12.9 12.9 12.900

Dry Volumetric Flow Rate, dry scfm 1132647 1132647 1119202 1,128,165.33

3

F-Factor, dscfm/MMBtu @ %O2 9669 9669 9813 9,717.000

Moisture, % 7.9 7.9 8.57 8.123

Fuel Type Override Override Override

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Location Common Stack - Method 3A CO2 3 6 9 12

Average

Run Number 8 9

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

Run Start Time 5:45:00 PM 8:45:00 

AM

Run Finish Time 7:05:00 PM 11:45:00 

AM

Carbon Dioxide, % 7.2 7.1 7.150

Oxygen, % 12.9 12.6 12.750

Dry Volumetric Flow Rate, dry scfm 1119202 1128769 1,123,985.50

0

F-Factor, dscfm/MMBtu @ %O2 9813 9718 9,765.500

Moisture, % 8.57 6.36 7.465

Fuel Type Override Override

Fw 0 0 0.000

Fc 0 0 0.000

Monday, February 14, 2011 Page 8 of 30
RRI Energy, Elrama Power Plant

Location Common Stack - Method 3A O2

Average

Run Number 1 10 11

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

Run Start Time 9:00:00 AM 11:50:00 

AM

2:55:00 PM

Run Finish Time 12:00:00 PM 2:50:00 PM 3:42:00 PM

Carbon Dioxide, % 7.2 7 6.9 7.033

Oxygen, % 12.95 12.6 12.6 12.717

Dry Volumetric Flow Rate, dry scfm 1106383 1139870 1140305 1,128,852.66

7

F-Factor, dscfm/MMBtu @ %O2 9817 9729 9708 9,751.333

Moisture, % 8.82 10.24 10.31 9.790

Fuel Type Override Override Override

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Location Common Stack - Method 3A O2 3

Average

Run Number 12 13 14

Test Date 4/26/2010 4/26/2010 4/26/2010

Run Start Time 10:35:00 AM 2:35:00 PM 5:35:00 PM

Run Finish Time 1:05:00 PM 5:20:00 PM 7:55:00 PM

Carbon Dioxide, % 6.4 6.6 6.5 6.500

Oxygen, % 13.4 13.3 13.3 13.333

Dry Volumetric Flow Rate, dry scfm 876092 844621 854407 858,373.333

F-Factor, dscfm/MMBtu @ %O2 9804 9777 9816 9,799.000

Moisture, % 6.33 8.57 9.25 8.050

Fuel Type Override Override Override

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Monday, February 14, 2011 Page 9 of 30
RRI Energy, Elrama Power Plant

Location Common Stack - Method 3A O2 3 6

Average

Run Number 2 3 4

Test Date 4/21/2010 4/21/2010 4/21/2010

Run Start Time 12:05:00 PM 3:10:00 PM 6:15:00 PM

Run Finish Time 3:05:00 PM 7:30:00 PM 7:30:00 PM

Carbon Dioxide, % 7.2 7.15 7.15 7.167

Oxygen, % 13 13.05 13.05 13.033

Dry Volumetric Flow Rate, dry scfm 1136424 1012889 1012889 1,054,067.33

3

F-Factor, dscfm/MMBtu @ %O2 9817 9774 9774 9,788.333

Moisture, % 9.26 7.89 7.89 8.347

Fuel Type Override Override Override

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Location Common Stack - Method 3A O2 3 6 9

Average

Run Number 5 6 7

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

Run Start Time 8:30:00 AM 11:35:00 

AM

2:40:00 PM

Run Finish Time 11:30:00 AM 2:35:00 PM 5:40:00 PM

Carbon Dioxide, % 7.2 7.2 7.2 7.200

Oxygen, % 12.9 12.9 12.9 12.900

Dry Volumetric Flow Rate, dry scfm 1132647 1132647 1119202 1,128,165.33

3

F-Factor, dscfm/MMBtu @ %O2 9669 9669 9813 9,717.000

Moisture, % 7.9 7.9 8.57 8.123

Fuel Type Override Override Override

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Monday, February 14, 2011 Page 10 of 30
RRI Energy, Elrama Power Plant

Location Common Stack - Method 3A O2 3 6 9 12

Average

Run Number 8 9

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

Run Start Time 5:45:00 PM 8:45:00 

AM

Run Finish Time 7:05:00 PM 11:45:00 

AM

Carbon Dioxide, % 7.2 7.1 7.150

Oxygen, % 12.9 12.6 12.750

Dry Volumetric Flow Rate, dry scfm 111920 1128769 620,344.500

F-Factor, dscfm/MMBtu @ %O2 9813 9718 9,765.500

Moisture, % 8.57 6.36 7.465

Fuel Type Override Override

Fw 0 0 0.000

Fc 0 0 0.000

Location Common Stack - Method 5/OTM-28

Average

Run Number 1 2 3

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

Run Start Time 9:00:00 AM 3:00:00 PM 8:30:00 AM

Run Finish Time 2:09:00 PM 7:15:00 PM 12:53:00 PM

Net Run Time, minutes 240 240 240

Dry Gas Meter Volume Sampled, dscf 214.986 211.282 221.903 216.057

Moisture Content of Stack Gas, % 8.82 7.89 8.08 8.263

Moisture Saturation at Stack Gas Temperature, % 9.62 10.31 9.86 9.930

Carbon Dioxide, % 7.2 7.15 7.15 7.167

Oxygen, % 12.95 13.05 12.9 12.967

Average Stack Gas Temperature, °F 112.31 114.73 113.02 113.353

Dry Volumetric Flow Rate, dry scfm 1,008,594.9 1,012,307.5 1,013,214.5 1,011,372.30

0

Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,245,182.2 1,242,378.6 1,247,985.9 1,245,182.23

3

Percent Isokinetic of Sampling Rate, % 96.5 94.5 99.1 96.700

F-Factor, dscfm/MMBtu @ %O2 9817 9774 9669 9,753.333

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Monday, February 14, 2011 Page 11 of 30
RRI Energy, Elrama Power Plant

Emissions Summary

Location: Common Stack - Method 10

Compound: Carbon Monoxide

Average

Run 1 2 3

lb/mmBtuO2 7.20E-02 5.25E-02 5.62E-02 0.060

ppm 3.63E+01 2.69E+01 2.86E+01 30.600

ppm@7%O2 6.73E+01 4.92E+01 5.23E+01 56.267

Location: Common Stack - Method 25A

Compound: Total organic compounds (TOC) as 

Average

Run 1 2 3

lb/mmBtuO2 1.86E-03 8.05E-04 1.67E-03 0.001

ppm 5.94E-01 4.96E-01 5.40E-01 0.543

ppm@7%O2 1.10E+00 4.79E-01 9.88E-01 0.856

Location: Common Stack - Method 26A

Compound: Filterable Particulate

Average

RunNumber 1 2 3

Mass_mg 51.6 42 55.1 49.567

lb/mmBtuO2 1.72E-02 1.38E-02 1.78E-02 0.016

Compound: Hydrogen Chloride

Average

RunNumber 1 2 3

Mass_mg 1.68 1.62 1.75 1.683

lb/mmBtuO2 5.59E-04 5.33E-04 5.67E-04 0.001

Compound: Hydrogen Fluoride

Average

RunNumber 1 2 3

Mass_mg 0.3 0.293 0.32 0.304

lb/mmBtuO2 9.99E-05 9.64E-05 1.04E-04 0.000

Location: Common Stack - Method 29

Compound: Antimony

Average

RunNumber 1 2 3

Mass_mg 0.00505 0.00525 0.00625 0.006

lb/mmBtuO2 1.42E-06 1.39E-06 1.70E-06 0.000

Compound: Arsenic

Average

RunNumber 1 2 3

Mass_mg 0.09347 0.07947 0.08137 0.085

lb/mmBtuO2 2.62E-05 2.10E-05 2.21E-05 0.000

Monday, February 14, 2011 Page 12 of 30
RRI Energy, Elrama Power Plant

Compound: Beryllium

Average

RunNumber 1 2 3

Mass_mg 0.00186 0.00176 0.00176 0.002

lb/mmBtuO2 5.22E-07 4.64E-07 4.78E-07 0.000

Compound: Cadmium

Average

RunNumber 1 2 3

Mass_mg 0.001063 0.00137 0.001063 0.001

lb/mmBtuO2 2.98E-07 3.61E-07 2.89E-07 0.000

Compound: Chromium

Average

RunNumber 1 2 3

Mass_mg 0.03138 0.03178 0.03218 0.032

lb/mmBtuO2 8.80E-06 8.38E-06 8.74E-06 0.000

Compound: Cobalt

Average

RunNumber 1 2 3

Mass_mg 0.0023 0.0018 0.0021 0.002

lb/mmBtuO2 6.45E-07 4.75E-07 5.71E-07 0.000

Compound: Filterable Particulate

Average

RunNumber 1 2 3

Mass_mg 63.8 75 91.6 76.800

lb/mmBtuO2 1.79E-02 1.98E-02 2.49E-02 0.021

Compound: Lead

Average

RunNumber 1 2 3

Mass_mg 0.0454 0.3608 0.0114 0.139

lb/mmBtuO2 1.27E-05 9.52E-05 3.10E-06 0.000

Compound: Manganese

Average

RunNumber 1 2 3

Mass_mg 0.0385 0.0421 0.041 0.041

lb/mmBtuO2 1.08E-05 1.11E-05 1.11E-05 0.000

Compound: Mercury

Average

RunNumber 1 2 3

Mass_mg 0.00709 0.00401 0.001076 0.004

lb/mmBtuO2 1.99E-06 1.06E-06 2.92E-07 0.000

Compound: Nickel

Average

RunNumber 1 2 3

Mass_mg 0.0281 0.0193 0.02148 0.023

lb/mmBtuO2 7.88E-06 5.09E-06 5.84E-06 0.000

Monday, February 14, 2011 Page 13 of 30
RRI Energy, Elrama Power Plant

Process Run Data

Compound: Phosphorus (yellow or white)

Average

RunNumber 1 2 3

Mass_mg 0.2372 0.2319 0.2503 0.240

lb/mmBtuO2 6.66E-05 6.12E-05 6.80E-05 0.000

Compound: Selenium

Average

RunNumber 1 2 3

Mass_mg 0.0338 0.0472 0.0123 0.031

lb/mmBtuO2 9.48E-06 1.25E-05 3.34E-06 0.000

Location: Common Stack - Method 5/OTM-28

Compound: Filterable Particulate

Average

RunNumber 1 2 3

Mass_mg 68.4 68.2 71.7 69.433

lb/mmBtuO2 1.81E-02 1.85E-02 1.80E-02 0.018

Compound: Inorganic (Aqueous) Condensible Pa

Average

RunNumber 1 2 3

Mass_mg 17.9 28.1 21 22.333

lb/mmBtuO2 4.74E-03 7.63E-03 5.27E-03 0.006

Compound: Organic Condensible Particulate

Average

RunNumber 1 2 3

Mass_mg 6.1 7.6 6.8 6.833

lb/mmBtuO2 1.61E-03 2.06E-03 1.71E-03 0.002

Compound: Total Particulate

Average

RunNumber 1 2 3

Mass_mg 92.4 103.9 99.5 98.600

lb/mmBtuO2 2.45E-02 2.82E-02 2.50E-02 0.026

Monday, February 14, 2011 Page 14 of 30
RRI Energy, Elrama Power Plant

Process Run Data

APCD Run Data

Process Lab Run Data

Run Name Value UOM Comments

Target

Value

1 Heat Input 1960 mmBtu/hr 1950

1 Steam Flow 1340 Klb/hr 1340

2 Heat Input 1932 mmBtu/hr 1950

2 Steam Flow 1342 Klb/hr 1340

3 Heat Input 1944 mmBtu/hr 1950

3 Steam Flow 1344 Klb/hr 1340

Run Name Value UOM Comments

Target

Value

1 VENTURI SCRUBBER 101 in. H2O 6

1 VENTURI SCRUBBER 201 in. H2O 6

1 VENTURI SCRUBBER 301 in. H2O 6

1 VENTURI SCRUBBER 401 in. H2O 6

1 VENTURI SCRUBBER 501 in. H2O 6

Monday, February 14, 2011 Page 15 of 30
RRI Energy, Elrama Power Plant

Sampling / Stack Data Results Detail

Location Common Stack - Method 10

Average

Run Number 1 2 3

Test Date 4/26/2010 4/26/2010 4/26/2010

Run Start Time 10:35:00 AM 2:35:00 PM 5:35:00 PM

Run Finish Time 1:05:00 PM 5:20:00 PM 7:55:00 PM

Carbon Dioxide, % 6.4 6.5 6.5 6.467

Oxygen, % 13.4 13.3 13.3 13.333

Fuel Factor 1.17 1.17 1.17

Dry Volumetric Flow Rate, dry scfm 876092 844621 854407 858,373.333

F-Factor, dscfm/MMBtu @ %O2 9804 9777 9816 9,799.000

Moisture, % 6.33 8.57 9.25 8.050

Analyzer Make Thermo Env. Thermo 

Env.l

Thermo Env.

Analyzer Model 48 48 48 48.000

Analyzer Serial Number 35982-251 35982-251 35982-251

Operating Range 504 504 504 504.000

Operating Units ppm ppm ppm

No. Readings/Avg. 120 120 120 120.000

Calibration Set 11 11 11 11.000

Calibration Pre Zero Cylinder ID EB0020533 EB0020533 EB0020533

Calibration Pre Zero Cylinder Instrument Response 0.38 0.44 0.37 0.397

Calibration Pre Zero Cylinder Bias -0.01 0 -0.02 -0.010

Calibration Pre Zero Cylinder Drift 0 0 0 0.000

Calibration Pre High Cylinder ID EB0005121 EB0005121 EB0005121

Calibration Pre High Cylinder Instrument Response 227.65 229.01 225.65 227.437

Calibration Pre High Cylinder Bias -0.09 0.18 -0.49 -0.133

Calibration Pre High Cylinder Drift 0 0 0 0.000

Calibration Post Zero Cylinder ID EB0020533 EB0020533 EB0020533

Calibration Post Zero Cylinder Instrument Response 0.44 0.37 0.38 0.397

Calibration Post Zero Cylinder Bias 0 -0.02 -0.01 -0.010

Calibration Post Zero Cylinder Drift 0.01 0.02 0.01 0.013

Calibration Post High Cylinder ID EB0005121 EB0005121 EB0005121

Calibration Post High Cylinder Instrument Response 229.01 225.65 229.45 228.037

Calibration Post High Cylinder Bias 0.18 -0.49 0.27 -0.013

Calibration Post High Cylinder Drift 0.27 0.67 0.76 0.567

Cavg 36.5 27.03 28.77 30.767

Cavg Units ppmvd ppmvd ppmvd

Cgas 36.261 26.8685 28.6231 30.584

Cgas Units ppmvd ppmvd ppmvd

Fuel Type Override Override Override

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Cgasw 0 0 0 0.000

Cgasw Units

Monday, February 14, 2011 Page 16 of 30
RRI Energy, Elrama Power Plant

Location Common Stack - Method 25A

Average

Run Number 1 2 3

Test Date 4/26/2010 4/26/2010 4/26/2010

Run Start Time 10:30:00 AM 2:35:00 PM 5:35:00 PM

Run Finish Time 11:30:00 AM 3:35:00 PM 6:35:00 PM

Carbon Dioxide, % 6.4 13.3 6.5 8.733

Oxygen, % 13.4 6.5 13.3 11.067

Fuel Factor 1.17 1.08 1.17

Dry Volumetric Flow Rate, dry scfm 876092 844621 854407 858,373.333

F-Factor, dscfm/MMBtu @ %O2 9804 9777 9816 9,799.000

Moisture, % 6.33 8.57 9.25 8.050

Analyzer Make CAI CAI CAI

Analyzer Model 300HFID 300 HFID 300 HFID

Analyzer Serial Number 27 302006 27 302006 27 302006

Operating Range 9.03 9.03 9.03 9.030

Operating Units ppm ppm ppm

No. Readings/Avg. 120 120 120 120.000

Calibration Set 12 12 12 12.000

Calibration Pre Zero Cylinder ID EB0020533 EB0020533 EB0020533

Calibration Pre Zero Cylinder Instrument Response 0.02 0.11 0.05 0.060

Calibration Pre Zero Cylinder Bias -0.55 0.44 -0.22 -0.110

Calibration Pre Zero Cylinder Drift 0 0 0 0.000

Calibration Pre High Cylinder ID CC243371 CC243371 CC243371

Calibration Pre High Cylinder Instrument Response 5.22 5.24 5.24 5.233

Calibration Pre High Cylinder Bias -0.66 -0.44 -0.44 -0.513

Calibration Pre High Cylinder Drift 0 0 0 0.000

Calibration Post Zero Cylinder ID EB0020533 EB0020533 EB0020533

Calibration Post Zero Cylinder Instrument Response 0.05 0.11 0.16 0.107

Calibration Post Zero Cylinder Bias -0.22 0.44 1 0.407

Calibration Post Zero Cylinder Drift 0.33 0 1.22 0.517

Calibration Post High Cylinder ID CC243371 CC243371 CC243371

Calibration Post High Cylinder Instrument Response 5.24 5.28 5.31 5.277

Calibration Post High Cylinder Bias -0.44 0 0.33 -0.037

Calibration Post High Cylinder Drift 0.22 0.44 0.77 0.477

Cavg 0.615 0.59 0.63 0.612

Cavg Units ppmvd ppmvd ppmvd

Cgas 0.594 0.4958 0.5402 0.543

Cgas Units ppmvd ppmvd ppmvd

Fuel Type Override Override Override

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Cgasw 0 0 0 0.000

Cgasw Units

Monday, February 14, 2011 Page 17 of 30
RRI Energy, Elrama Power Plant

Location Common Stack - Method 26A

Average

Run Number 1 2 3

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

Run Start Time 1:55:00 PM 8:45:00 AM 12:30:00 PM

Run Finish Time 4:47:30 PM 12:08:30 PM 3:42:30 PM

Net Traversing Points 24 24 24

Net Run Time, minutes 180 180 180

Nozzle Diameter, inches 0.314 0.314 0.314 0.314

Pitot Tube Coefficient 0.84 0.84 0.84 0.840

Dry Gas Meter Calibration Factor 0.981 0.981 0.981 0.981

Barometric Pressure, inches of Mercury 28.67 28.91 28.91 28.830

Average Orifice Meter Differential, inches H2O 3.38 2.91 3.18 3.157

Dry Gas Meter Volume Sampled, cubic feet 183.244 169.635 177.921 176.933

Average Dry Gas Meter Temperature, °F 80.38 61.71 79.38 73.823

Dry Gas Meter Volume Sampled, dscf 169.765 163.937 166.426 166.709

Total Moisture Liquid collected, g 292.5 233 322 282.500

Volume of Water Vapor, standard cubic feet 13.77 10.97 15.16 13.300

Moisture Content of Stack Gas, % 7.50 6.27 8.35 7.373

Moisture Saturation at Stack Gas Temperature, % 9.71 9.86 9.34 9.637

Dry Mole Fraction 0.925 0.9373 0.9165 0.926

Carbon Dioxide, % 7.2 7.1 7 7.100

Oxygen, % 12.9 12.6 12.6 12.700

Carbon Monoxide & Nitrogen, % 79.9 80.3 80.4 80.200

Fuel Factor 1.11 1.17 1.19

Dry Molecular Weight, lb/lb-Mole 29.67 29.64 29.62 29.643

Wet Molecular weight, lb/lb-Mole 28.79 28.91 28.65 28.783

Flue Gas Static Pressure, inches of H2O 0.2 0.2 0.2 0.200

Absolute Flue Gas Pressure, inches of Mercury 28.68 28.92 28.92 28.840

Average Stack Gas Temperature, °F 112.46 113.29 111.42 112.390

Average Velocity Head, inches of H2O 0.3666513296

43275

0.353858233

977806

0.349163743

056655

0.357

Average Stack Gas Velocity, feet/second 36.21 35.37 35.24 35.607

Stack Cross-Sectional Area, square feet 584.099 584.099 584.099 584.099

Dry Volumetric Flow Rate, dry scfm 1,037,801.5 1,034,302.7 1,010,930.4 1,027,678.2

00

Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,269,013.5 1,239,574.9 1,235,018.9 1,247,869.1

00

Percent Isokinetic of Sampling Rate, % 98.7 95.6 99.3 97.867

Percent Excess Air, % 157.4 146.5 146.1 150.000

F-Factor, dscfm/MMBtu @ %O2 9813 9718 9708 9,746.333

Round Duct Diameter, inches 327.25 327.25 327.25

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

Monday, February 14, 2011 Page 18 of 30
RRI Energy, Elrama Power Plant

Location Common Stack - Method 29

Average

Run Number 1 2 3

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

Run Start Time 11:50:00 AM 8:30:00 AM 2:40:00 PM

Run Finish Time 4:40:00 PM 12:50:00 PM 7:05:00 PM

Net Traversing Points 48 48 48

Net Run Time, minutes 240 240 240

Nozzle Diameter, inches 0.302 0.302 0.302 0.302

Pitot Tube Coefficient 0.84 0.84 0.84 0.840

Dry Gas Meter Calibration Factor 0.955 0.955 0.955 0.955

Barometric Pressure, inches of Mercury 28.8 28.67 28.67 28.713

Average Orifice Meter Differential, inches H2O 2.60 2.72 2.74 2.687

Dry Gas Meter Volume Sampled, cubic feet 224.106 229.567 230.135 227.936

Average Dry Gas Meter Temperature, °F 76.58 69.13 78.31 74.673

Dry Gas Meter Volume Sampled, dscf 204.061 211.091 208.015 207.722

Total Moisture Liquid collected, g 442 384.5 414.5 413.667

Volume of Water Vapor, standard cubic feet 20.80 18.10 19.51 19.470

Moisture Content of Stack Gas, % 9.25 7.90 8.57 8.573

Moisture Saturation at Stack Gas Temperature, % 8.81 8.72 9.33 8.953

Dry Mole Fraction 0.9119 0.921 0.9143 0.916

Carbon Dioxide, % 7.2 7.2 7.2 7.200

Oxygen, % 13 12.9 12.9 12.933

Carbon Monoxide & Nitrogen, % 79.8 79.9 79.9 79.867

Fuel Factor 1.10 1.11 1.11

Dry Molecular Weight, lb/lb-Mole 29.67 29.67 29.67 29.670

Wet Molecular weight, lb/lb-Mole 28.72 28.75 28.67 28.713

Flue Gas Static Pressure, inches of H2O 0.2 0.2 0.2 0.200

Absolute Flue Gas Pressure, inches of Mercury 28.81 28.68 28.68 28.723

Average Stack Gas Temperature, °F 109.25 108.75 111.08 109.693

Average Velocity Head, inches of H2O 0.3702121966

70679

0.371328067

143283

0.362634039

262722

0.368

Average Stack Gas Velocity, feet/second 36.24 36.34 36.04 36.207

Stack Cross-Sectional Area, square feet 584.099 584.099 584.099 584.099

Dry Volumetric Flow Rate, dry scfm 1,034,393.2 1,043,788.1 1,023,447.9 1,033,876.4

00

Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,270,064.9 1,273,569.5 1,263,055.7 1,268,896.7

00

Percent Isokinetic of Sampling Rate, % 96.5 98.9 99.4 98.267

Percent Excess Air, % 161.1 157.4 157.4 158.633

F-Factor, dscfm/MMBtu @ %O2 9817 9669 9813 9,766.333

Round Duct Diameter, inches 327.25 327.25 327.25

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

Monday, February 14, 2011 Page 19 of 30
RRI Energy, Elrama Power Plant

Location Common Stack - Method 3A CO2

Average

Run Number 1 10 11

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

Run Start Time 9:00:00 AM 11:50:00 AM 2:55:00 PM

Run Finish Time 12:00:00 PM 2:50:00 PM 3:42:00 PM

Carbon Dioxide, % 7.2 7 6.9 7.033

Oxygen, % 12.95 12.6 12.6 12.717

Fuel Factor 1.1 1.19 1.2

Dry Volumetric Flow Rate, dry scfm 1106383 1139870 1140305 1,128,852.6

67

F-Factor, dscfm/MMBtu @ %O2 9817 9729 9708 9,751.333

Moisture, % 8.82 10.24 10.31 9.790

Analyzer Make Servomex Servomex Servomex

Analyzer Model 1440 1440 1440 1,440.000

Analyzer Serial Number 01415C/1194 01415C/119

4

01415C/1194

Operating Range 18 18 18 18.000

Operating Units % % %

No. Readings/Avg. 180 180 60 140.000

Calibration Set 2 7 7 5.333

Calibration Pre Zero Cylinder ID EB0020533 EB0020533 EB0020533

Calibration Pre Zero Cylinder Instrument Response 0.19 0.11 0.19 0.163

Calibration Pre Zero Cylinder Bias 0.22 -0.22 0.22 0.073

Calibration Pre Zero Cylinder Drift 0 0 0 0.000

Calibration Pre High Cylinder ID CC53029 CC53029 CC53029

Calibration Pre High Cylinder Instrument Response 8.87 8.89 9.01 8.923

Calibration Pre High Cylinder Bias -0.06 -0.89 -0.22 -0.390

Calibration Pre High Cylinder Drift 0 0 0 0.000

Calibration Post Zero Cylinder ID EB0020533 EB0020533 EB0020533

Calibration Post Zero Cylinder Instrument Response 0.14 0.19 0.18 0.170

Calibration Post Zero Cylinder Bias -0.06 0.22 0.17 0.110

Calibration Post Zero Cylinder Drift 0.28 0.44 0.05 0.257

Calibration Post High Cylinder ID CC53029 CC53029 CC53029

Calibration Post High Cylinder Instrument Response 8.96 9.01 9.06 9.010

Calibration Post High Cylinder Bias 0.44 -0.22 0.06 0.093

Calibration Post High Cylinder Drift 0.5 0.67 0.28 0.483

Cavg 7.19 7 7 7.063

Cavg Units ppmvd ppmvd ppmvd

Cgas 7.2337 7.0135 6.9382 7.062

Cgas Units ppmvd ppmvd ppmvd

Fuel Type Override Override Override

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Cgasw 0 0 0 0.000

Cgasw Units

Monday, February 14, 2011 Page 20 of 30
RRI Energy, Elrama Power Plant

Location Common Stack - Method 3A CO2 3

Average

Run Number 12 13 14

Test Date 4/26/2010 4/26/2010 4/26/2010

Run Start Time 10:35:00 AM 2:35:00 PM 5:35:00 PM

Run Finish Time 1:05:00 PM 5:20:00 PM 7:55:00 PM

Carbon Dioxide, % 6.4 6.5 6.5 6.467

Oxygen, % 13.4 13.3 13.3 13.333

Fuel Factor 1.17 1.17 1.17

Dry Volumetric Flow Rate, dry scfm 876092 844621 854407 858,373.333

F-Factor, dscfm/MMBtu @ %O2 9804 9777 9816 9,799.000

Moisture, % 6.33 8.57 9.25 8.050

Analyzer Make Servomex Servomex Servomex

Analyzer Model 1440 1440 1440 1,440.000

Analyzer Serial Number 01415C/1194 01415C/119

4

01415C/1194

Operating Range 18 18 18 18.000

Operating Units % % %

No. Readings/Avg. 120 120 120 120.000

Calibration Set 10 10 10 10.000

Calibration Pre Zero Cylinder ID EB0020533 EB0020533 EB0020533

Calibration Pre Zero Cylinder Instrument Response 0.15 0.11 0.15 0.137

Calibration Pre Zero Cylinder Bias 0.06 -0.17 0.06 -0.017

Calibration Pre Zero Cylinder Drift 0 0 0 0.000

Calibration Pre High Cylinder ID CC53029 CC53029 CC53029

Calibration Pre High Cylinder Instrument Response 8.88 8.94 8.99 8.937

Calibration Pre High Cylinder Bias -0.11 0.22 0.5 0.203

Calibration Pre High Cylinder Drift 0 0 0 0.000

Calibration Post Zero Cylinder ID EB0020533 EB0020533 EB0020533

Calibration Post Zero Cylinder Instrument Response 0.11 0.15 0.18 0.147

Calibration Post Zero Cylinder Bias -0.17 0.06 0.22 0.037

Calibration Post Zero Cylinder Drift 0.23 0.23 0.16 0.207

Calibration Post High Cylinder ID CC53029 CC53029 CC53029

Calibration Post High Cylinder Instrument Response 8.94 8.99 9.05 8.993

Calibration Post High Cylinder Bias 0.22 0.5 0.83 0.517

Calibration Post High Cylinder Drift 0.33 0.28 0.33 0.313

Cavg 6.37 6.48 6.52 6.457

Cavg Units ppmvd ppmvd ppmvd

Cgas 6.4035 6.4758 6.4662 6.449

Cgas Units ppmvd ppmvd ppmvd

Fuel Type Override Override Override

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Cgasw 0 0 0 0.000

Cgasw Units

Monday, February 14, 2011 Page 21 of 30
RRI Energy, Elrama Power Plant

Location Common Stack - Method 3A CO2 3 6

Average

Run Number 2 3 4

Test Date 4/21/2010 4/21/2010 4/21/2010

Run Start Time 12:05:00 PM 3:10:00 PM 6:15:00 PM

Run Finish Time 3:05:00 PM 7:30:00 PM 7:30:00 PM

Carbon Dioxide, % 7.2 7.15 7.15 7.167

Oxygen, % 13 13.05 13.05 13.033

Fuel Factor 1.1 1.1 1.1

Dry Volumetric Flow Rate, dry scfm 1136424 1012889 1012889 1,054,067.3

33

F-Factor, dscfm/MMBtu @ %O2 9817 9774 9774 9,788.333

Moisture, % 9.26 7.89 7.89 8.347

Analyzer Make Servomex Servomex servomex

Analyzer Model 1440 1440 1440 1,440.000

Analyzer Serial Number 01420C/1194 01415C/119

4

01415C/1194

Operating Range 18 18 18 18.000

Operating Units % % %

No. Readings/Avg. 180 180 60 140.000

Calibration Set 2 2 2 2.000

Calibration Pre Zero Cylinder ID EB0020533 EB0020533 EB0020533

Calibration Pre Zero Cylinder Instrument Response 0.14 0.11 0.15 0.133

Calibration Pre Zero Cylinder Bias -0.06 -0.22 0 -0.093

Calibration Pre Zero Cylinder Drift 0 0 0 0.000

Calibration Pre High Cylinder ID CC53029 CC53029 CC53029

Calibration Pre High Cylinder Instrument Response 8.96 8.83 8.79 8.860

Calibration Pre High Cylinder Bias 0.44 -0.28 -0.5 -0.113

Calibration Pre High Cylinder Drift 0 0 0 0.000

Calibration Post Zero Cylinder ID EB0020533 EB0020533 EB0020533

Calibration Post Zero Cylinder Instrument Response 0.11 0.15 0.11 0.123

Calibration Post Zero Cylinder Bias -0.22 0 -0.22 -0.147

Calibration Post Zero Cylinder Drift 0.16 0.22 0.22 0.200

Calibration Post High Cylinder ID CC53029 CC53029 CC53029

Calibration Post High Cylinder Instrument Response 8.83 8.79 8.99 8.870

Calibration Post High Cylinder Bias -0.28 -0.5 0.61 -0.057

Calibration Post High Cylinder Drift 0.72 0.22 1.11 0.683

Cavg 7.16 7.03 7.03 7.073

Cavg Units ppmvd ppmvd ppmvd

Cgas 7.2275 7.1623 7.0969 7.162

Cgas Units ppmvd ppmvd ppmvd

Fuel Type Override Override Override

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Cgasw 0 0 0 0.000

Cgasw Units

Monday, February 14, 2011 Page 22 of 30
RRI Energy, Elrama Power Plant

Location Common Stack - Method 3A CO2 3 6 9

Average

Run Number 5 6 7

Test Date 4/22/2010 4/22/2010 4/22/2010

Run Start Time 8:30:00 AM 11:35:00 AM 2:40:00 PM

Run Finish Time 11:30:00 AM 2:35:00 PM 5:40:00 PM

Carbon Dioxide, % 7.2 7.2 7.2 7.200

Oxygen, % 12.9 12.9 12.9 12.900

Fuel Factor 1.11 1.11 1.11

Dry Volumetric Flow Rate, dry scfm 1132647 1132647 1119202 1,128,165.3

33

F-Factor, dscfm/MMBtu @ %O2 9669 9669 9813 9,717.000

Moisture, % 7.9 7.9 8.57 8.123

Analyzer Make Servomex Servomex Servomex

Analyzer Model 1440 1440 1440 1,440.000

Analyzer Serial Number 01415C/1194 01415C/119

4

01415C/1194

Operating Range 18 18 18 18.000

Operating Units % % %

No. Readings/Avg. 180 180 180 180.000

Calibration Set 5 5 5 5.000

Calibration Pre Zero Cylinder ID EB0020533 EB0020533 EB0020533

Calibration Pre Zero Cylinder Instrument Response 0.19 0.14 0.18 0.170

Calibration Pre Zero Cylinder Bias 0.44 0.17 0.39 0.333

Calibration Pre Zero Cylinder Drift 0 0 0 0.000

Calibration Pre High Cylinder ID CC53029 CC53029 CC53029

Calibration Pre High Cylinder Instrument Response 8.9 8.88 8.84 8.873

Calibration Pre High Cylinder Bias -1.11 -1.22 -1.44 -1.257

Calibration Pre High Cylinder Drift 0 0 0 0.000

Calibration Post Zero Cylinder ID EB0020533 EB0020533 EB0020533

Calibration Post Zero Cylinder Instrument Response 0.14 0.18 0.16 0.160

Calibration Post Zero Cylinder Bias 0.17 0.39 0.28 0.280

Calibration Post Zero Cylinder Drift 0.27 0.22 0.11 0.200

Calibration Post High Cylinder ID CC53029 CC53029 CC53029

Calibration Post High Cylinder Instrument Response 8.88 8.84 8.83 8.850

Calibration Post High Cylinder Bias -1.22 -1.44 -1.5 -1.387

Calibration Post High Cylinder Drift 0.11 0.22 6.000000000

00001E-02

0.130

Cavg 7.05 7.08 7.05 7.060

Cavg Units ppmvd ppmvd ppmvd

Cgas 7.1099 7.1666 7.1539 7.143

Cgas Units ppmvd ppmvd ppmvd

Fuel Type Override Override Override

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Cgasw 0 0 0 0.000

Cgasw Units

Monday, February 14, 2011 Page 23 of 30
RRI Energy, Elrama Power Plant

Location Common Stack - Method 3A CO2 3 6 9 12

Average

Run Number 8 9

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

Run Start Time 5:45:00 PM 8:45:00 AM

Run Finish Time 7:05:00 PM 11:45:00 AM

Carbon Dioxide, % 7.2 7.1 7.150

Oxygen, % 12.9 12.6 12.750

Fuel Factor 1.11 1.17

Dry Volumetric Flow Rate, dry scfm 1119202 1128769 1,123,985.5

00

F-Factor, dscfm/MMBtu @ %O2 9813 9718 9,765.500

Moisture, % 8.57 6.36 7.465

Analyzer Make Servomex Servomex

Analyzer Model 1440 1440 1,440.000

Analyzer Serial Number 01415C/1194 01415C/119

4

Operating Range 18 18 18.000

Operating Units % %

No. Readings/Avg. 60 180 120.000

Calibration Set 5 7 6.000

Calibration Pre Zero Cylinder ID EB0020533 EB0020533

Calibration Pre Zero Cylinder Instrument Response 0.16 0.15 0.155

Calibration Pre Zero Cylinder Bias 0.28 0 0.140

Calibration Pre Zero Cylinder Drift 0 0 0.000

Calibration Pre High Cylinder ID CC53029 CC53029

Calibration Pre High Cylinder Instrument Response 8.83 9 8.915

Calibration Pre High Cylinder Bias -1.5 -0.28 -0.890

Calibration Pre High Cylinder Drift 0 0 0.000

Calibration Post Zero Cylinder ID EB0020533 EB0020533

Calibration Post Zero Cylinder Instrument Response 0.18 0.11 0.145

Calibration Post Zero Cylinder Bias 0.39 -0.22 0.085

Calibration Post Zero Cylinder Drift 0.11 0.22 0.165

Calibration Post High Cylinder ID CC53029 CC53029

Calibration Post High Cylinder Instrument Response 8.88 8.89 8.885

Calibration Post High Cylinder Bias -1.22 -0.89 -1.055

Calibration Post High Cylinder Drift 0.28 0.61 0.445

Cavg 0 7.1 3.550

Cavg Units ppmvd ppmvd

Cgas 0 7.1242 3.562

Cgas Units ppmvd ppmvd

Fuel Type Override Override

Fw 0 0 0.000

Fc 0 0 0.000

Cgasw 0 0 0.000

Cgasw Units

Monday, February 14, 2011 Page 24 of 30
RRI Energy, Elrama Power Plant

Location Common Stack - Method 3A O2

Average

Run Number 1 10 11

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

Run Start Time 9:00:00 AM 11:50:00 AM 2:55:00 PM

Run Finish Time 12:00:00 PM 2:50:00 PM 3:42:00 PM

Carbon Dioxide, % 7.2 7 6.9 7.033

Oxygen, % 12.95 12.6 12.6 12.717

Fuel Factor 1.1 1.19 1.2

Dry Volumetric Flow Rate, dry scfm 1106383 1139870 1140305 1,128,852.6

67

F-Factor, dscfm/MMBtu @ %O2 9817 9729 9708 9,751.333

Moisture, % 8.82 10.24 10.31 9.790

Analyzer Make Servomex Servomex Servomex

Analyzer Model 1440 1440 1440 1,440.000

Analyzer Serial Number 01415C/1193 01415C/119

3

01415C/1194

Operating Range 22.3 22.3 22.3 22.300

Operating Units % % %

No. Readings/Avg. 180 180 60 140.000

Calibration Set 4 8 8 6.667

Calibration Pre Zero Cylinder ID EB0020533 EB0020533 EB0020533

Calibration Pre Zero Cylinder Instrument Response 0.11 0.08 0.14 0.110

Calibration Pre Zero Cylinder Bias 0.04 -0.54 -0.27 -0.257

Calibration Pre Zero Cylinder Drift 0 0 0 0.000

Calibration Pre High Cylinder ID EB0004573_O

2

EB0004573_

O2

EB0004573_

O2

Calibration Pre High Cylinder Instrument Response 10.89 11.04 11.1 11.010

Calibration Pre High Cylinder Bias 0 -0.04 0.22 0.060

Calibration Pre High Cylinder Drift 0 0 0 0.000

Calibration Post Zero Cylinder ID EB0020533 EB0020533 EB0020533

Calibration Post Zero Cylinder Instrument Response 0.18 0.14 0.19 0.170

Calibration Post Zero Cylinder Bias 0.36 -0.27 -0.04 0.017

Calibration Post Zero Cylinder Drift 0.32 0.27 0.23 0.273

Calibration Post High Cylinder ID EB0004573_O

2

EB0004573_

O2

EB0004573_

O2

Calibration Post High Cylinder Instrument Response 10.95 11.1 11.07 11.040

Calibration Post High Cylinder Bias 0.27 0.22 0.09 0.193

Calibration Post High Cylinder Drift 0.27 0.26 0.13 0.220

Cavg 12.85 12.67 12.65 12.723

Cavg Units ppmvd ppmvd ppmvd

Cgas 12.9703 12.6058 12.5765 12.718

Cgas Units ppmvd ppmvd ppmvd

Fuel Type Override Override Override

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Cgasw 0 0 0 0.000

Cgasw Units

Monday, February 14, 2011 Page 25 of 30
RRI Energy, Elrama Power Plant

Location Common Stack - Method 3A O2 3

Average

Run Number 12 13 14

Test Date 4/26/2010 4/26/2010 4/26/2010

Run Start Time 10:35:00 AM 2:35:00 PM 5:35:00 PM

Run Finish Time 1:05:00 PM 5:20:00 PM 7:55:00 PM

Carbon Dioxide, % 6.4 6.6 6.5 6.500

Oxygen, % 13.4 13.3 13.3 13.333

Fuel Factor 1.17 1.15 1.17

Dry Volumetric Flow Rate, dry scfm 876092 844621 854407 858,373.333

F-Factor, dscfm/MMBtu @ %O2 9804 9777 9816 9,799.000

Moisture, % 6.33 8.57 9.25 8.050

Analyzer Make Servomex Servomex Servomex

Analyzer Model 1440 1440 1440 1,440.000

Analyzer Serial Number 01415C/1193 01415C/119

4

01415C/1194

Operating Range 22.3 22.3 22.3 22.300

Operating Units % % %

No. Readings/Avg. 120 120 120 120.000

Calibration Set 9 9 9 9.000

Calibration Pre Zero Cylinder ID EB0020533 EB0020533 EB0020533

Calibration Pre Zero Cylinder Instrument Response 0.15 0.18 0.15 0.160

Calibration Pre Zero Cylinder Bias 0 0.13 0 0.043

Calibration Pre Zero Cylinder Drift 0 0 0 0.000

Calibration Pre High Cylinder ID EB0004573_O

2

EB0004573_

O2

EB0004573_

O2

Calibration Pre High Cylinder Instrument Response 10.88 10.92 10.83 10.877

Calibration Pre High Cylinder Bias -0.18 0 -0.4 -0.193

Calibration Pre High Cylinder Drift 0 0 0 0.000

Calibration Post Zero Cylinder ID EB0020533 EB0020533 EB0020533

Calibration Post Zero Cylinder Instrument Response 0.18 0.15 0.16 0.163

Calibration Post Zero Cylinder Bias 0.13 0 0.04 0.057

Calibration Post Zero Cylinder Drift 0.13 0.13 0.04 0.100

Calibration Post High Cylinder ID EB0004573_O

2

EB0004573_

O2

EB0004573_

O2

Calibration Post High Cylinder Instrument Response 10.92 10.83 10.94 10.897

Calibration Post High Cylinder Bias 0 -0.4 0.09 -0.103

Calibration Post High Cylinder Drift 0.18 0.4 0.49 0.357

Cavg 13.21 13.11 13.08 13.133

Cavg Units ppmvd ppmvd ppmvd

Cgas 13.367 13.2955 13.2502 13.304

Cgas Units ppmvd ppmvd ppmvd

Fuel Type Override Override Override

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Cgasw 0 0 0 0.000

Cgasw Units

Monday, February 14, 2011 Page 26 of 30
RRI Energy, Elrama Power Plant

Location Common Stack - Method 3A O2 3 6

Average

Run Number 2 3 4

Test Date 4/21/2010 4/21/2010 4/21/2010

Run Start Time 12:05:00 PM 3:10:00 PM 6:15:00 PM

Run Finish Time 3:05:00 PM 7:30:00 PM 7:30:00 PM

Carbon Dioxide, % 7.2 7.15 7.15 7.167

Oxygen, % 13 13.05 13.05 13.033

Fuel Factor 1.1 1.1 1.1

Dry Volumetric Flow Rate, dry scfm 1136424 1012889 1012889 1,054,067.3

33

F-Factor, dscfm/MMBtu @ %O2 9817 9774 9774 9,788.333

Moisture, % 9.26 7.89 7.89 8.347

Analyzer Make Servomex Servomex Servomex

Analyzer Model 1440 1440 1440 1,440.000

Analyzer Serial Number 01415C/1193 01420C/119

3

01415C/1193

Operating Range 22.3 22.3 22.3 22.300

Operating Units % % %

No. Readings/Avg. 180 180 60 140.000

Calibration Set 4 4 4 4.000

Calibration Pre Zero Cylinder ID EB0020533 EB0020533 EB0020533

Calibration Pre Zero Cylinder Instrument Response 0.18 0.11 0.15 0.147

Calibration Pre Zero Cylinder Bias 0.36 0.04 0.22 0.207

Calibration Pre Zero Cylinder Drift 0 0 0 0.000

Calibration Pre High Cylinder ID EB0004573_O

2

EB0004573_

O2

EB0004573_

O2

Calibration Pre High Cylinder Instrument Response 10.95 10.93 10.88 10.920

Calibration Pre High Cylinder Bias 0.27 0.18 -0.04 0.137

Calibration Pre High Cylinder Drift 0 0 0 0.000

Calibration Post Zero Cylinder ID EB0020533 EB0020533 EB0020533

Calibration Post Zero Cylinder Instrument Response 0.11 0.15 0.22 0.160

Calibration Post Zero Cylinder Bias 0.04 0.22 0.54 0.267

Calibration Post Zero Cylinder Drift 0.32 0.18 0.32 0.273

Calibration Post High Cylinder ID EB0004573_O

2

EB0004573_

O2

EB0004573_

O2

Calibration Post High Cylinder Instrument Response 10.93 10.88 10.82 10.877

Calibration Post High Cylinder Bias 0.18 -0.04 -0.31 -0.057

Calibration Post High Cylinder Drift 0.09 0.22 0.27 0.193

Cavg 12.77 12.92 12.81 12.833

Cavg Units ppmvd ppmvd ppmvd

Cgas 12.8648 13.0571 13.0216 12.981

Cgas Units ppmvd ppmvd ppmvd

Fuel Type Override Override Override

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Cgasw 0 0 0 0.000

Cgasw Units

Monday, February 14, 2011 Page 27 of 30
RRI Energy, Elrama Power Plant

Location Common Stack - Method 3A O2 3 6 9

Average

Run Number 5 6 7

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

Run Start Time 8:30:00 AM 11:35:00 AM 2:40:00 PM

Run Finish Time 11:30:00 AM 2:35:00 PM 5:40:00 PM

Carbon Dioxide, % 7.2 7.2 7.2 7.200

Oxygen, % 12.9 12.9 12.9 12.900

Fuel Factor 1.11 1.11 1.11

Dry Volumetric Flow Rate, dry scfm 1132647 1132647 1119202 1,128,165.3

33

F-Factor, dscfm/MMBtu @ %O2 9669 9669 9813 9,717.000

Moisture, % 7.9 7.9 8.57 8.123

Analyzer Make Servomex Servomex Servomex

Analyzer Model 1440 1440 1440 1,440.000

Analyzer Serial Number 01415C/1193 01415C/119

3

01420C/1193

Operating Range 22.3 22.3 22.3 22.300

Operating Units % % %

No. Readings/Avg. 180 180 180 180.000

Calibration Set 6 6 6 6.000

Calibration Pre Zero Cylinder ID EB0020533 EB0020533 EB0020533

Calibration Pre Zero Cylinder Instrument Response 0.15 0.11 0.16 0.140

Calibration Pre Zero Cylinder Bias -0.18 -0.36 -0.13 -0.223

Calibration Pre Zero Cylinder Drift 0 0 0 0.000

Calibration Pre High Cylinder ID EB0004573_O

2

EB0004573_

O2

EB0004573_

O2

Calibration Pre High Cylinder Instrument Response 10.95 10.88 10.81 10.880

Calibration Pre High Cylinder Bias 0.18 -0.13 -0.45 -0.133

Calibration Pre High Cylinder Drift 0 0 0 0.000

Calibration Post Zero Cylinder ID EB0020533 EB0020533 EB0020533

Calibration Post Zero Cylinder Instrument Response 0.11 0.16 0.21 0.160

Calibration Post Zero Cylinder Bias -0.36 -0.13 0.09 -0.133

Calibration Post Zero Cylinder Drift 0.18 0.23 0.22 0.210

Calibration Post High Cylinder ID EB0004573_O

2

EB0004573_

O2

EB0004573_

O2

Calibration Post High Cylinder Instrument Response 10.88 10.81 10.88 10.857

Calibration Post High Cylinder Bias -0.13 -0.45 -0.13 -0.237

Calibration Post High Cylinder Drift 0.31 0.32 0.32 0.317

Cavg 12.77 12.69 12.65 12.703

Cavg Units ppmvd ppmvd ppmvd

Cgas 12.892 12.895 12.8626 12.883

Cgas Units ppmvd ppmvd ppmvd

Fuel Type Override Override Override

Fw 0 0 0 0.000

Fc 0 0 0 0.000

Cgasw 0 0 0 0.000

Cgasw Units

Monday, February 14, 2011 Page 28 of 30
RRI Energy, Elrama Power Plant

Location Common Stack - Method 3A O2 3 6 9 12

Average

Run Number 8 9

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

Run Start Time 5:45:00 PM 8:45:00 AM

Run Finish Time 7:05:00 PM 11:45:00 AM

Carbon Dioxide, % 7.2 7.1 7.150

Oxygen, % 12.9 12.6 12.750

Fuel Factor 1.11 1.17

Dry Volumetric Flow Rate, dry scfm 111920 1128769 620,344.500

F-Factor, dscfm/MMBtu @ %O2 9813 9718 9,765.500

Moisture, % 8.57 6.36 7.465

Analyzer Make Servomex Servomex

Analyzer Model 1440 1440 1,440.000

Analyzer Serial Number 01415C/1193 01420C/119

3

Operating Range 22.3 22.3 22.300

Operating Units % %

No. Readings/Avg. 60 180 120.000

Calibration Set 6 8 7.000

Calibration Pre Zero Cylinder ID EB0020533 EB0020533

Calibration Pre Zero Cylinder Instrument Response 0.21 0.18 0.195

Calibration Pre Zero Cylinder Bias 0.09 -0.09 0.000

Calibration Pre Zero Cylinder Drift 0 0 0.000

Calibration Pre High Cylinder ID EB0004573_O

2

EB0004573_

O2

Calibration Pre High Cylinder Instrument Response 10.88 11 10.940

Calibration Pre High Cylinder Bias -0.13 -0.22 -0.175

Calibration Pre High Cylinder Drift 0 0 0.000

Calibration Post Zero Cylinder ID EB0020533 EB0020533

Calibration Post Zero Cylinder Instrument Response 0.19 0.08 0.135

Calibration Post Zero Cylinder Bias 0 -0.54 -0.270

Calibration Post Zero Cylinder Drift 0.09 0.45 0.270

Calibration Post High Cylinder ID EB0004573_O

2

EB0004573_

O2

Calibration Post High Cylinder Instrument Response 10.83 11.04 10.935

Calibration Post High Cylinder Bias -0.36 -0.04 -0.200

Calibration Post High Cylinder Drift 0.23 0.18 0.205

Cavg 12.64 12.62 12.630

Cavg Units ppmvd ppmvd

Cgas 12.8428 12.6162 12.730

Cgas Units ppmvd ppmvd

Fuel Type Override Override

Fw 0 0 0.000

Fc 0 0 0.000

Cgasw 0 0 0.000

Cgasw Units

Monday, February 14, 2011 Page 29 of 30
RRI Energy, Elrama Power Plant

Location Common Stack - Method 5/OTM-28

Average

Run Number 1 2 3

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

Run Start Time 9:00:00 AM 3:00:00 PM 8:30:00 AM

Run Finish Time 2:09:00 PM 7:15:00 PM 12:53:00 PM

Net Traversing Points 48 48 48

Net Run Time, minutes 240 240 240

Nozzle Diameter, inches 0.314 0.314 0.314 0.314

Pitot Tube Coefficient 0.84 0.84 0.84 0.840

Dry Gas Meter Calibration Factor 0.981 0.981 0.981 0.981

Barometric Pressure, inches of Mercury 28.8 28.8 28.67 28.757

Average Orifice Meter Differential, inches H2O 2.92 2.94 3.04 2.967

Dry Gas Meter Volume Sampled, cubic feet 227.413 225.940 234.126 229.160

Average Dry Gas Meter Temperature, °F 71.33 77.17 67.75 72.083

Dry Gas Meter Volume Sampled, dscf 214.986 211.282 221.903 216.057

Total Moisture Liquid collected, g 442 384.5 414.5 413.667

Volume of Water Vapor, standard cubic feet 20.80 18.10 19.51 19.470

Moisture Content of Stack Gas, % 8.82 7.89 8.08 8.263

Moisture Saturation at Stack Gas Temperature, % 9.62 10.31 9.86 9.930

Dry Mole Fraction 0.9118 0.9211 0.9192 0.917

Carbon Dioxide, % 7.2 7.15 7.15 7.167

Oxygen, % 12.95 13.05 12.9 12.967

Carbon Monoxide & Nitrogen, % 79.85 79.8 79.95 79.867

Fuel Factor 1.10 1.10 1.12

Dry Molecular Weight, lb/lb-Mole 29.67 29.67 29.66 29.667

Wet Molecular weight, lb/lb-Mole 28.64 28.75 28.72 28.703

Flue Gas Static Pressure, inches of H2O 0.2 0.2 0.2 0.200

Absolute Flue Gas Pressure, inches of Mercury 28.81 28.81 28.68 28.767

Average Stack Gas Temperature, °F 112.31 114.73 113.02 113.353

Average Velocity Head, inches of H2O 0.3528483205

77941

0.351240157

359578

0.353521242

736185

0.353

Average Stack Gas Velocity, feet/second 35.53 35.45 35.61 35.530

Stack Cross-Sectional Area, square feet 584.099 584.099 584.099 584.099

Dry Volumetric Flow Rate, dry scfm 1,008,594.9 1,012,307.5 1,013,214.5 1,011,372.3

00

Actual Wet Volumetric Flue Gas Flow Rate, acfm 1,245,182.2 1,242,378.6 1,247,985.9 1,245,182.2

33

Percent Isokinetic of Sampling Rate, % 96.5 94.5 99.1 96.700

Percent Excess Air, % 159.3 162.8 157.2 159.767

F-Factor, dscfm/MMBtu @ %O2 9817 9774 9669 9,753.333

Round Duct Diameter, inches 327.25 327.25 327.25

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

Monday, February 14, 2011 Page 30 of 30