EMSI

Client: NRG Date: 2/24/2010 mm/dd/yy

Unit: 8 Compounds: ST640‐01

Facility: Vienna Operator: N. Presutti

Description: ICR Methane  Project #: 0

Recovery Field Study

Methane Retention Area Measured Spike Pre­Spike Recovery

(min) Conc. (ppm) (ppm) Conc. (ppm) Value ( R ) Validity

Spike Trial 1 5.533 28.4058 6.16 5.00 0.72 1.087 Valid

Spike Trial 2 5.533 14.8143 3.54 3.00 0.72 0.939 Valid

Spike Trial 3 5.533 26.4294 5.79 5.00 0.72 1.013 Valid

Averages

Methane Results

Units Run 1 Run 2 Run 3 Average 

ppmw 1.23 3.88 0.72 1.94

ppmw @ 7% O2 1.22 3.86 0.72 1.93

ppmd 1.33 4.21 0.78 2.11

ppmd @ 7% O2 1.32 4.18 0.78 2.09

lb/mmBTU 7.8591E‐04 2.4843E‐03 4.6169E‐04 1.2440E‐03

Gas Chromatography Analysis
EMSI

Client: NRG Date: 2/24/2010 mm/dd/yy

Unit: 8 Version: ST640‐01

Facility: Vienna Operator: N. Presutti

Description: ICR Methane  Project #: 0

Methane Retention Area Conc. Carrier gas

(min) (ppmw) Start ( o C) Hold (min) End ( o C) Flow (psi)

Trial 1 5.620 4.2703 1.23 50 1 200 20

Trial 2 5.620 4.2703 1.23 50 1 200 20

Trial 3 5.620 4.2703 1.23 50 1 200 20

Ave. 5.620 4.2703 1.23 50 1 200 20

Compound Retention Area Conc. Carrier gas

(min) (ppmw) Start ( o C) Hold (min) End ( o C) Flow (psi)

Trial 1

Trial 2

Trial 3

Ave.

Compound Retention Area Conc. Carrier gas

(min) (ppmw) Start ( o C) Hold (min) End ( o C) Flow (psi)

Trial 1

Trial 2

Trial 3

Ave.

Gas Chromatography Analysis

Temperature Program

Temperature Program

Temperature Program
EMSI

Client: NRG Date: 2/24/2010 mm/dd/yy

Unit: 8 Version: ST640‐01

Facility: Vienna Operator: N. Presutti

Description: ICR Methane  Project #: 0

Methane Retention Area Conc. Carrier gas

(min) (ppmw) Start ( o C) Hold (min) End ( o C) Flow (psi)

Trial 1 5.620 16.5282 3.88 50 1 200 20

Trial 2 5.620 16.5282 3.88 50 1 200 20

Trial 3 5.620 16.5282 3.88 50 1 200 20

Ave. 5.620 16.5282 3.88 50 1 200 20

Compound Retention Area Conc. Carrier gas

(min) (ppmw) Start ( o C) Hold (min) End ( o C) Flow (psi)

Trial 1

Trial 2

Trial 3

Ave.

Compound Retention Area Conc. Carrier gas

(min) (ppmw) Start ( o C) Hold (min) End ( o C) Flow (psi)

Trial 1

Trial 2

Trial 3

Ave.

Temperature Program

Temperature Program

Temperature Program

Gas Chromatography Analysis
EMSI

Client: NRG Date: 2/24/2010 mm/dd/yy

Unit: 8 Version: ST640‐01

Facility: Vienna Operator: N. Presutti

Description: ICR Methane  Project #: 0

Methane Retention Area Conc. Carrier gas

(min) (ppmw) Start ( o C) Hold (min) End ( o C) Flow (psi)

Trial 1 5.620 2.2845 0.72 50 1 200 20

Trial 2 5.620 2.2845 0.72 50 1 200 20

Trial 3 5.620 2.2845 0.72 50 1 200 20

Ave. 5.620 2.2845 0.72 50 1 200 20

Compound Retention Area Conc. Carrier gas

(min) (ppmw) Start ( o C) Hold (min) End ( o C) Flow (psi)

Trial 1

Trial 2

Trial 3

Ave.

Compound Retention Area Conc. Carrier gas

(min) (ppmw) Start ( o C) Hold (min) End ( o C) Flow (psi)

Trial 1

Trial 2

Trial 3

Ave.

Gas Chromatography Analysis

Temperature Program

Temperature Program

Temperature Program
EMSI

Client: NRG Date: 2/24/2010 mm/dd/yy

Unit: 8 Version: ST640‐01

Facility: Vienna Operator: N. Presutti

Description: ICR Methane  Project #: 0

Methane 2/24/2010

Low (10ppm)

Retention Conc. Area RF Calc. Conc. Area agreement (%)

1 5.62 10 71.3480 7.13 13.47 0.00

2 5.62 10 71.3480 7.13 13.47 0.00

3 5.62 10 71.3480 7.13 13.47 0.00

Ave. 5.62 10 71.3480 7.13

Mid (100ppm)

Retention Conc. Area RF

1 5.60 100 1278.8270 12.79 156.79 0.00

2 5.60 100 1278.8270 12.79 156.79 0.00

3 5.60 100 1278.8270 12.79 156.79 0.00

Ave. 5.60 100 1278.8270 12.79

High (500ppm)

Retention Conc. Area RF

1 5.62 500 7318.8190 14.64 691.19 0.00

2 5.62 500 7318.8190 14.64 691.19 0.00

3 5.62 500 7318.8190 14.64 691.19 0.00

Ave. 5.62 500 7318.8190 14.64

Date Calibrated:

Gas Chromatography Analysis

Methane

y = 0.2682x0.8401

R2 = 0.9984

0

100

200

300

400

500

600

0.0000 1000.000

0

2000.000

0

3000.000

0

4000.000

0

5000.000

0

6000.000

0

7000.000

0

8000.000

0

Area

Conc.
Lab name: Eagle Mountain Scientific

Client: NRG - Vienna

Client ID: 902612

Analysis date: 02/24/2010 18:26:09

Method: Syringe Injection

Column: RESTEK 15METER MXT-1

Operator: Nicholas Presutti

Temperature program:

Init temp Hold Ramp Final temp

50.00 2.000 20.000 200.00

Events:

Time Event

0.000 ZERO 

0.000 SOUND 

0.200 G ON (ValveRotate)

-1.087 9.407

-/0.140

-/0.796

-/0.966 -/1.036

-/1.513

Methane/1.896

-/10.180

-/10.306 -/10.336 -/10.363 -/10.373

-/10.493 -/10.516 -/10.573 -/10.593 -/10.606 -/10.633

-/10.736 -/10.743 -/10.783 -/10.796

-/10.860 -/10.876

-/10.946 -/10.996 -/11.010 -/11.026 -/11.033 -/11.076 -/11.090 -/11.100

1

2

3

4

5

6

7

8

9

10

11

Component Retention Area External Units

Methane 1.896 4.2703 0.3707 ppm

4.2703 0.3707

Lab name: SRI Instruments

Client: Valued Customer

Client ID: N2024

Analysis date: 02/24/2010 18:01:44

Method: Syringe Injection

Column: RESTEK 15METER MXT-1

Operator:

Temperature program:

Init temp Hold Ramp Final temp

50.00 2.000 20.000 200.00

Events:

Time Event

0.000 ZERO 

-1.884 10.554

-/1.046

-/1.493

Methane/1.923

-/10.300 -/10.310 -/10.340 -/10.380

-/10.463 -/10.476 -/10.490 -/10.513 -/10.530 -/10.576 -/10.613 -/10.636 -/10.683 -/10.703 -/10.743 -/10.770 -/10.810 -/10.850 -/10.880 -/10.933 -/10.976 -/11.006 -/11.020 -/11.056 -/11.080

1

2

3

4

5

6

7

8

9

10

11

Component Retention Area External Units

Methane 1.923 16.5282 1.4347 ppm

16.5282 1.4347

Lab name: SRI Instruments

Client: Valued Customer

Client ID: N2024

Analysis date: 02/24/2010 19:18:19

Method: Syringe Injection

Column: RESTEK 15METER MXT-1

Operator:

Temperature program:

Init temp Hold Ramp Final temp

Events:

Time Event

-0.670 9.487

-/0.140

-/1.180

-/1.573

Methane/1.946

1

2

3

4

5

6

7

8

9

10

11

Component Retention Area External Units

Methane 1.946 2.2845 0.1983 ppm

2.2845 0.1983
Calibration file: C:\peak382-32bit\Vienna Methane.cal

AREA

AMOUNT INJECTED

5760

0

 0.000 500.000

1

2

Avg slope of curve: 11.52

Y-axis intercept: 0.00

Linearity: 1.00

Number of levels: 3

SD/rel SD of CF's: 3.9/33.9

Y=11.5202X

r2: 0.9997

Last calibrated: Mon Jun 07 06:35:08 2010

Lvl. Area/ht. Amount CF Current Previous #1Previous #2

1 71.348 10.000 7.135 71.348 N/A N/A

2 1278.827 100.000 12.788 1278.827 N/A N/A

3 7318.819 500.000 14.638 7318.819 N/A N/A