# Company: Plant: Test Location: Project #M100805 Test Method: 0031 Test Engineer: S. Sands Test Technician: B. Matzat lb/mmBtu Emissions by: Calculated Type of Fuel Firing:Coal, Sub-Bituminous Calculated Fuel Factor Fd, dscf/mmBtu: 9755.7 Temp ID: VM 2 Meter ID: VM 2 Probe Length: 6.0 ft Probe Liner Material: Glass Meter Calibration Factor (Y): 1.005

Sample Plane: Horizontal Port Length: 10.00 in. Port Size (diameter): 4.00 in.

Port Type: Flange Duct Shape: Circular Diameter 16.25 ft

Duct Area: 207.394 Sq. Ft. Test Length: 120 min. Train Type: Other Source Condition: Normal

# of Runs 3

Vectren Corporation AB Brown Plant Unit 2 Stack

ICR M23 2/2/10

## Company:Vectren Corporation Plant:ABBrown Plant Test Location:Unit 2 Stack

Normal 2/24/10 8:45 10:35 Meter Temperature, Tm: 15.5°F Stack Temperature, Ts: 127.9°F Calculated Fuel Factor Fd:9,736.66dscf/mmBtu Test Length 120.00in mins. Barometric Pressure 29.28in Hg Set 1 Meter Volume, Vm: 19.923liters Set 1 Meter Volume, Vmstd:21.758dry liters Set 2 Meter Volume, Vm: 19.976ft3 

### Set 2 Meter Volume, Vmstd:21.816dscf Set 3 Meter Volume, Vm: 19.824ft3 

### Set 3 Meter Volume, Vmstd:21.650dscf Set 4 Meter Volume, Vm: 19.901ft3 

### Set 4 Meter Volume, Vmstd:21.734dscf Total Meter Volume, Vmstd:86.956dscf Carbon Dioxide: 12.90% Oxygen: 5.70% Nitrogen: 81.40% Gas Weight dry, Md: 30.292lb/lb mole

Actual Stack Port- Clock Meter Vol. Temp Inlet Outlet Reading No. Time liters °F °F °F Traps Blank Set 1-1 8:45:00 0.000 128 15 15 Set 1-2 8:50:00 5.010 128 15 15 FA 1405-01FA1397-01 Set 1-3 8:55:00 9.901 128 15 15 Set 10 Set 2 Set 1-4 9:00:00 15.120 128 15 15

9:05:00 19.923

19.923 128 15

Set 2-1 9:15:00 0.000 128 15 15 Set 2-2 9:20:00 5.120 128 15 15 FA1412-01 Set 2-3 9:25:00 10.010 128 15 15 Set 16 Set 2-4 9:30:00 15.140 127 15 15

9:35:00 19.976

19.976 128 15

Set 3-1 9:45:00 0.000 128 16 16 Set 3-2 9:50:00 5.100 128 16 16 FA1413-01 Set 3-3 9:55:00 9.900 128 16 16 Set 17 Set 3-4 10:00:00 15.010 128 16 16

10:05:00 19.824

19.824 128 16

Set 4-1 10:15:00 0.000 128 16 16 Set 4-2 10:20:00 4.920 128 16 16 FA1402-01 Set 4-3 10:25:00 10.010 128 16 16 Set 7 Set 4-4 10:30:00 15.120 128 16 16

10:35:00 19.901

19.901 128 16 

## Source Condition:
Start Time: End Time:Run 1-Method 0031

Set 1 Data

Set 2 Data

Set 3 Data

Set 4 Data

## Date:

Meter Temp



### ICR M23 2/2/10

## Company:Vectren Corporation Plant:ABBrown Plant Test Location:Unit 2 Stack

Normal 2/24/10 11:50 13:40 Meter Temperature, Tm: 14.6°F Stack Temperature, Ts: 128.0°F Calculated Fuel Factor Fd:9,695.50dscf/mmBtu Test Length 120.00in mins. Barometric Pressure 29.28in Hg Set 1 Meter Volume, Vm: 19.810ft3 

### Set 1 Meter Volume, Vmstd:21.674dscf Set 2 Meter Volume, Vm: 19.828ft3 

### Set 2 Meter Volume, Vmstd:21.694dscf Set 3 Meter Volume, Vm: 19.918ft3 

### Set 3 Meter Volume, Vmstd:21.792dscf Set 4 Meter Volume, Vm: 19.864ft3 

### Set 4 Meter Volume, Vmstd:21.733dscf Total Meter Volume, Vmstd:86.894dscf Carbon Dioxide: 13.10% Oxygen: 5.70% Nitrogen: 81.20% Gas Weight dry, Md: 30.324lb/lb mole

Actual Stack Port- Clock Meter Vol. Temp Inlet Outlet Reading No. Time liters °F °F °F Traps Blank Set 1-1 11:50:00 0.000 128 14 14 Set 1-2 11:55:00 5.010 128 14 14 FA 1411-01FA1401-01 Set 1-3 12:00:00 9.820 128 14 14 Set 15 Set 6 Set 1-4 12:05:00 14.910 128 14 14

12:10:00 19.810

19.810 128 14

Set 2-1 12:20:00 0.000 128 14 14 Set 2-2 12:25:00 4.820 128 15 15 FA1399-01 Set 2-3 12:30:00 9.760 128 15 15 Set 4 Set 2-4 12:35:00 14.920 128 14 14

12:40:00 19.828

19.828 128 15

Set 3-1 12:50:00 0.000 128 15 15 Set 3-2 12:55:00 4.930 128 15 15 FA1404-01 Set 3-3 13:00:00 9.910 128 15 15 Set 9 Set 3-4 13:05:00 15.240 128 15 15

13:10:00 19.918

19.918 128 15

Set 4-1 13:20:00 0.000 128 15 15 Set 4-2 13:25:00 4.820 128 15 15 FA1400-01 Set 4-3 13:30:00 9.930 128 15 15 Set 5 Set 4-4 13:35:00 15.070 128 15 15

13:40:00 19.864

19.864 128 15 

## Start Time: End Time:

Set 4 Data 

### Run 2-Method 0031

Set 1 Data

Set 2 Data

Set 3 Data

## Date:

Meter Temp 

## Source Condition:

ICR M23 2/2/10

## Company:Vectren Corporation Plant:ABBrown Plant Test Location:Unit 2 Stack

Normal 2/24/10 14:40 16:30 Meter Temperature, Tm: 15.5°F Stack Temperature, Ts: 128.0°F Calculated Fuel Factor Fd:9,834.96dscf/mmBtu Test Length 120.00in mins. Barometric Pressure 29.28in Hg Set 1 Meter Volume, Vm: 19.805ft3 

### Set 1 Meter Volume, Vmstd:21.629dscf Set 2 Meter Volume, Vm: 19.831ft3 

### Set 2 Meter Volume, Vmstd:21.657dscf Set 3 Meter Volume, Vm: 19.910ft3 

### Set 3 Meter Volume, Vmstd:21.743dscf Set 4 Meter Volume, Vm: 19.980ft3 

### Set 4 Meter Volume, Vmstd:21.820dscf Total Meter Volume, Vmstd:86.849dscf Carbon Dioxide: 13.20% Oxygen: 5.40% Nitrogen: 81.40% Gas Weight dry, Md: 30.328lb/lb mole

Actual Stack Port- Clock Meter Vol. Temp Inlet Outlet Reading No. Time liters °F °F °F Traps Blank Trip Blank Set 1-1 14:40:00 0.000 128 15 15 Set 1-2 14:45:00 4.210 128 15 15 FA 1398-01FA1408-01 FA1410-01 Set 1-3 14:50:00 9.720 128 15 15 Set 3 Set 12 Set 14 Set 1-4 14:55:00 14.910 128 15 15

15:00:00 19.805

19.805 128 15

Set 2-1 15:10:00 0.000 128 15 15 Set 2-2 15:15:00 4.930 128 15 15 FA1415-01 Set 2-3 15:20:00 10.120 128 15 15 Set 19 Set 2-4 15:25:00 14.850 128 15 15

15:30:00 19.831

19.831 128 15

Set 3-1 15:40:00 0.000 128 16 16 Set 3-2 15:45:00 5.030 128 16 16 FA1407-01 Set 3-3 15:50:00 10.010 128 16 16 Set 11 Set 3-4 15:55:00 14.900 128 16 16

16:00:00 19.910

19.910 128 16

Set 4-1 16:10:00 0.000 128 16 16 Set 4-2 16:15:00 5.320 128 16 16 FA1409-01 Set 4-3 16:20:00 9.810 128 16 16 Set 13 Set 4-4 16:25:00 14.850 128 16 16

16:30:00 19.980

19.980 128 16 

## Start Time: End Time:

Set 4 Data 

### Run 3-Method 0031

Set 1 Data

Set 2 Data

Set 3 Data

## Date:

Meter Temp 

## Source Condition:

ICR M23 2/2/10

## Company:Vectren Corporation Plant:ABBrown Plant Test Location:Unit 2 Stack

Normal 2/24/10 0:00 #N/A Meter Temperature, Tm: #DIV/0!°F Stack Temperature, Ts: #DIV/0!°F Calculated Fuel Factor Fd: dscf/mmBtu Test Length 120.00in mins. Barometric Pressure in Hg Set 1 Meter Volume, Vm: 0.000ft3 

### Set 1 Meter Volume, Vmstd:#DIV/0!dscf Set 2 Meter Volume, Vm: 0.000ft3 

### Set 2 Meter Volume, Vmstd:#DIV/0!dscf Set 3 Meter Volume, Vm: 0.000ft3 

### Set 3 Meter Volume, Vmstd:#DIV/0!dscf Set 4 Meter Volume, Vm: 0.000ft3 

### Set 4 Meter Volume, Vmstd:#DIV/0!dscf Total Meter Volume, Vmstd:#DIV/0!dscf Carbon Dioxide: % Oxygen: % Nitrogen: 100.00% Gas Weight dry, Md: 28.000lb/lb mole

Actual Stack Port- Clock Meter Vol. Temp Inlet Outlet Reading No. Time liters °F °F °F Set 1-1 Set 1-2 Set 1-3 Set 1-4

0.000 #DIV/0! #DIV/0!

Set 2-1 Set 2-2 Set 2-3 Set 2-4

0.000 #DIV/0! #DIV/0!

Set 3-1 Set 3-2 Set 3-3 Set 3-4

0.000 #DIV/0! #DIV/0!

Set 4-1 Set 4-2 Set 4-3 Set 4-4

0.000 #DIV/0! #DIV/0! 

### Run 4-Method 0031

Set 1 Data

Set 2 Data

Set 3 Data

## Date:

Meter Temp 

## Source Condition:
Start Time: End Time:

Set 4 Data



### ICR M23 2/2/10

## Company:

Plant: Test Location: Test Method:

Normal Normal Normal 2/24/10 2/24/10 2/24/10 8:45 11:50 14:40 10:35 13:40 16:30 Run 1 Run 2 Run 3 Average

127.9 128.0 128.0 128.0 86.956 86.894 86.849 86.900 12.9 13.1 13.2 13.1 5.7 5.7 5.4 5.6

<1309.62<1178.3<1268.8<1252.26 ug/dscm @ 7%O2

## Dry<1197.61<1077.6<1137.8<1137.67 <0.0011 <0.0010<0.0011<0.0010 End Time

Average Gas Temperature, °F Gas Sample Volume, dry standard liters

lb/mmBtu ug/dscm Average %CO2

## by volume, dry basis Average %O2

## by volume, dry basis Vectren Corporation AB Brown Plant Unit 2 Stack

Source Condition 0031

Date

Start Time

Stack Conditions

VOHAP Emissions

ICR M23 2/2/10Concentration Emissions Blank

(ug)(ug-Blank) (ug/dcsm) (ug/dscm @ 7%O2) (lbs/mmBtu) (ug) Chlorobenzene 0.01 0.01 4.60E-01 0.42 3.84E-07 0.00 1,4-Dichlorobenzene 0.02 0.02 9.19E-01 0.84 7.68E-07 0.00 Iodomethane 0.02 0.02 9.19E-01 0.84 7.68E-07 0.00 cis-1,2-Dichloroethylene 0.01 0.01 4.60E-01 0.42 3.84E-07 0.00 1,1,1-Trichloroethane 0.01 0.01 4.60E-01 0.42 3.84E-07 0.00 1,2-Dichloroethane 0.007 0.01 3.22E-01 0.29 2.69E-07 0.00 1,2-Dichloropropane 0.01 0.01 4.60E-01 0.42 3.84E-07 0.00 Vinyl Chlorine 0.01 0.01 4.60E-01 0.42 3.84E-07 0.00 trans-1,3-Dichloropropane 0.007 0.01 3.22E-01 0.29 2.69E-07 0.00 Tetrachloroethylene 0.02 0.02 9.19E-01 0.84 7.68E-07 0.00 Bromoform 0.01 0.01 4.60E-01 0.42 3.84E-07 0.00 Dichlorodifluoromethane (FREON 12) 0.02 0.02 9.19E-01 0.84 7.68E-07 0.00

Chloroethane 0.009 0.01 4.14E-01 0.38 3.46E-07 0.00 1,1-Dichloroethylene 0.01 0.01 4.60E-01 0.42 3.84E-07 0.00 trans-1,2-Dichloroethylene 0.01 0.01 4.60E-01 0.42 3.84E-07 0.00 m / p-Xylene 0.02 0.02 9.19E-01 0.84 7.68E-07 0.00 Toluene 0.05 0.05 2.30E+00 2.10 1.92E-06 0.00 0-Xylene 0.02 0.02 9.19E-01 0.84 7.68E-07 0.00 Acetone (2-Propanone) 0.08 0.08 3.68E+00 3.36 3.07E-06 0.00 Carbon Disulfide 2.06 2.06 9.47E+01 86.58 7.91E-05 0.00 Dibromomethane 0.01 0.01 4.60E-01 0.42 3.84E-07 0.00 Methyl Isobutyl Ketone 0.02 0.02 9.19E-01 0.84 7.68E-07 0.00 Ethylene Dibromide 0.01 0.01 4.60E-01 0.42 3.84E-07 0.00 1,3-Dichlorobenzene 0.02 0.02 9.19E-01 0.84 7.68E-07 0.00 1,2-Dichlorobenzene 0.02 0.02 9.19E-01 0.84 7.68E-07 0.00 Chloromethane 0.07 0.07 3.22E+00 2.94 2.69E-06 0.00 Chloroform 0.01 0.01 4.60E-01 0.42 3.84E-07 0.00 Carbon Tetrachloride 0.02 0.02 9.19E-01 0.84 7.68E-07 0.00 Trichloroethylene 0.01 0.01 4.60E-01 0.42 3.84E-07 0.00 Bromodichloromethane 0.01 0.01 4.60E-01 0.42 3.84E-07 0.00 cis-1,3-Dichloropropene 0.01 0.01 4.60E-01 0.42 3.84E-07 0.00 1,1,2-Trichloroethane 0.02 0.02 9.19E-01 0.84 7.68E-07 0.00 Dibromochloromethane 0.009 0.01 4.14E-01 0.38 3.46E-07 0.00 1,1,2,2-Tetrachloroethane 0.01 0.01 4.60E-01 0.42 3.84E-07 0.00 Bromomethane 0.14 0.14 6.43E+00 5.88 5.38E-06 0.00 Trichlorofluoromethane (FREON 11) 0.02 0.02 9.19E-01 0.84 7.68E-07 0.00 Methylene Chloride (Dichloromethane) 0.32 0.02 9.19E-01 0.84 7.68E-07 0.30 1,1,-Dichloroethane 0.01 0.01 4.60E-01 0.42 3.84E-07 0.00 Benzene 0.027 0.03 1.24E+00 1.13 1.04E-06 0.00 Ethylbenzene 0.01 0.01 4.60E-01 0.42 3.84E-07 0.00 Styrene 0.01 0.01 4.60E-01 0.42 3.84E-07 0.00 1,1,1,2-Tetrachloroethane 0.01 0.01 4.60E-01 0.42 3.84E-07 0.00 1,2,3-Trichloropropane 0.02 0.02 9.19E-01 0.84 7.68E-07 0.00 Methyl Butyl Ketone (2-Hexanone) 0.03 0.03 1.38E+00 1.26 1.15E-06 0.00 Methyl Ethyl Ketone (2-Butanone) 0.04 0.04 1.84E+00 1.68 1.54E-06 0.00 Total Volatile Organic HAP 3.00 137.84 126.05 1.15E-04

Sample volume (Vmstd, liters) 21.76 Average % CO2by volume, dry 12.90 Average % O2by volume, dry 5.70 SPECIATED VOLATILE ORGANIC HAP TEST RESULTS SUMMARY Run 1-Trap Set 1 Vectren Corporation AB Brown Plant Unit 2 Stack February 24, 2010

Analytes Sample Catch

Platt Environmental Services, Inc. Template Rev. 2/17/09Concentration Emissions Blank
(ug)(ug-Blank) (ug/dcsm) (ug/dscm @ 7%O2) (lbs/mmBtu) (ug) Chlorobenzene 0.01 0.01 4.58E-01 0.42 3.83E-07 0.00 1,4-Dichlorobenzene 0.02 0.02 9.17E-01 0.84 7.66E-07 0.00 Iodomethane 0.02 0.02 9.17E-01 0.84 7.66E-07 0.00 cis-1,2-Dichloroethylene 0.01 0.01 4.58E-01 0.42 3.83E-07 0.00 1,1,1-Trichloroethane 0.01 0.01 4.58E-01 0.42 3.83E-07 0.00 1,2-Dichloroethane 0.007 0.01 3.21E-01 0.29 2.68E-07 0.00 1,2-Dichloropropane 0.01 0.01 4.58E-01 0.42 3.83E-07 0.00 Vinyl Chlorine 0.01 0.01 4.58E-01 0.42 3.83E-07 0.00 trans-1,3-Dichloropropane 0.007 0.01 3.21E-01 0.29 2.68E-07 0.00 Tetrachloroethylene 0.02 0.02 9.17E-01 0.84 7.66E-07 0.00 Bromoform 0.01 0.01 4.58E-01 0.42 3.83E-07 0.00 Dichlorodifluoromethane (FREON 12) 0.02 0.02 9.17E-01 0.84 7.66E-07 0.00

Chloroethane 0.009 0.01 4.13E-01 0.38 3.45E-07 0.00 1,1-Dichloroethylene 0.01 0.01 4.58E-01 0.42 3.83E-07 0.00 trans-1,2-Dichloroethylene 0.01 0.01 4.58E-01 0.42 3.83E-07 0.00 m / p-Xylene 0.02 0.02 9.17E-01 0.84 7.66E-07 0.00 Toluene 0.02 0.02 9.17E-01 0.84 7.66E-07 0.00 0-Xylene 0.02 0.02 9.17E-01 0.84 7.66E-07 0.00 Acetone (2-Propanone) 0.05 0.05 2.29E+00 2.10 1.92E-06 0.00 Carbon Disulfide 2.64 2.64 1.21E+02 110.66 1.01E-04 0.00 Dibromomethane 0.01 0.01 4.58E-01 0.42 3.83E-07 0.00 Methyl Isobutyl Ketone 0.02 0.02 9.17E-01 0.84 7.66E-07 0.00 Ethylene Dibromide 0.01 0.01 4.58E-01 0.42 3.83E-07 0.00 1,3-Dichlorobenzene 0.02 0.02 9.17E-01 0.84 7.66E-07 0.00 1,2-Dichlorobenzene 0.02 0.02 9.17E-01 0.84 7.66E-07 0.00 Chloromethane 0.08 0.08 3.67E+00 3.35 3.06E-06 0.00 Chloroform 0.01 0.01 4.58E-01 0.42 3.83E-07 0.00 Carbon Tetrachloride 0.02 0.02 9.17E-01 0.84 7.66E-07 0.00 Trichloroethylene 0.01 0.01 4.58E-01 0.42 3.83E-07 0.00 Bromodichloromethane 0.01 0.01 4.58E-01 0.42 3.83E-07 0.00 cis-1,3-Dichloropropene 0.01 0.01 4.58E-01 0.42 3.83E-07 0.00 1,1,2-Trichloroethane 0.02 0.02 9.17E-01 0.84 7.66E-07 0.00 Dibromochloromethane 0.009 0.01 4.13E-01 0.38 3.45E-07 0.00 1,1,2,2-Tetrachloroethane 0.01 0.01 4.58E-01 0.42 3.83E-07 0.00 Bromomethane 0.10 0.10 4.58E+00 4.19 3.83E-06 0.00 Trichlorofluoromethane (FREON 11) 0.01 0.01 4.58E-01 0.42 3.83E-07 0.00 Methylene Chloride (Dichloromethane) 0.02 0.02 9.17E-01 0.84 7.66E-07 0.00 1,1,-Dichloroethane 0.01 0.01 4.58E-01 0.42 3.83E-07 0.00 Benzene 0.016 0.02 7.33E-01 0.67 6.13E-07 0.00 Ethylbenzene 0.01 0.01 4.58E-01 0.42 3.83E-07 0.00 Styrene 0.01 0.01 4.58E-01 0.42 3.83E-07 0.00 1,1,1,2-Tetrachloroethane 0.01 0.01 4.58E-01 0.42 3.83E-07 0.00 1,2,3-Trichloropropane 0.02 0.02 9.17E-01 0.84 7.66E-07 0.00 Methyl Butyl Ketone (2-Hexanone) 0.03 0.03 1.38E+00 1.26 1.15E-06 0.00 Methyl Ethyl Ketone (2-Butanone) 0.04 0.04 1.83E+00 1.68 1.53E-06 0.00 Total Volatile Organic HAP 3.47 158.97 145.37 1.33E-04 Sample volume (Vmstd, liters) 21.82 Average % CO2by volume, dry 12.90 Average % O2by volume, dry 5.70

Analytes Sample Catch

SPECIATED VOLATILE ORGANIC HAP TEST RESULTS SUMMARY Run 1-Trap Set 2 Vectren Corporation AB Brown Plant Unit 2 Stack February 24, 2010

Platt Environmental Services, Inc. Template Rev. 2/17/09Concentration Emissions Blank

(ug)(ug-Blank) (ug/dcsm) (ug/dscm @ 7%O2) (lbs/mmBtu)(ug) Chlorobenzene 0.01 0.01 4.62E-01 0.42 3.86E-07 0.00 1,4-Dichlorobenzene 0.02 0.02 9.24E-01 0.84 7.72E-07 0.00 Iodomethane 0.02 0.02 9.24E-01 0.84 7.72E-07 0.00 cis-1,2-Dichloroethylene 0.01 0.01 4.62E-01 0.42 3.86E-07 0.00 1,1,1-Trichloroethane 0.01 0.01 4.62E-01 0.42 3.86E-07 0.00 1,2-Dichloroethane 0.007 0.01 3.23E-01 0.30 2.70E-07 0.00 1,2-Dichloropropane 0.01 0.01 4.62E-01 0.42 3.86E-07 0.00 Vinyl Chlorine 0.01 0.01 4.62E-01 0.42 3.86E-07 0.00 trans-1,3-Dichloropropane 0.007 0.01 3.23E-01 0.30 2.70E-07 0.00 Tetrachloroethylene 0.02 0.02 9.24E-01 0.84 7.72E-07 0.00 Bromoform 0.01 0.01 4.62E-01 0.42 3.86E-07 0.00 Dichlorodifluoromethane (FREON 12) 0.02 0.02 9.24E-01 0.84 7.72E-07 0.00

Chloroethane 0.009 0.01 4.16E-01 0.38 3.47E-07 0.00 1,1-Dichloroethylene 0.01 0.01 4.62E-01 0.42 3.86E-07 0.00 trans-1,2-Dichloroethylene 0.01 0.01 4.62E-01 0.42 3.86E-07 0.00 m / p-Xylene 0.02 0.02 9.24E-01 0.84 7.72E-07 0.00 Toluene 0.02 0.02 9.24E-01 0.84 7.72E-07 0.00 0-Xylene 0.02 0.02 9.24E-01 0.84 7.72E-07 0.00 Acetone (2-Propanone) 0.06 0.06 2.77E+00 2.53 2.32E-06 0.00 Carbon Disulfide 1.77 1.77 8.18E+01 74.76 6.83E-05 0.00 Dibromomethane 0.01 0.01 4.62E-01 0.42 3.86E-07 0.00 Methyl Isobutyl Ketone 0.02 0.02 9.24E-01 0.84 7.72E-07 0.00 Ethylene Dibromide 0.01 0.01 4.62E-01 0.42 3.86E-07 0.00 1,3-Dichlorobenzene 0.02 0.02 9.24E-01 0.84 7.72E-07 0.00 1,2-Dichlorobenzene 0.02 0.02 9.24E-01 0.84 7.72E-07 0.00 Chloromethane 0.08 0.08 3.70E+00 3.38 3.09E-06 0.00 Chloroform 0.01 0.01 4.62E-01 0.42 3.86E-07 0.00 Carbon Tetrachloride 0.02 0.02 9.24E-01 0.84 7.72E-07 0.00 Trichloroethylene 0.01 0.01 4.62E-01 0.42 3.86E-07 0.00 Bromodichloromethane 0.01 0.01 4.62E-01 0.42 3.86E-07 0.00 cis-1,3-Dichloropropene 0.01 0.01 4.62E-01 0.42 3.86E-07 0.00 1,1,2-Trichloroethane 0.02 0.02 9.24E-01 0.84 7.72E-07 0.00 Dibromochloromethane 0.009 0.01 4.16E-01 0.38 3.47E-07 0.00 1,1,2,2-Tetrachloroethane 0.01 0.01 4.62E-01 0.42 3.86E-07 0.00 Bromomethane 0.10 0.10 4.62E+00 4.22 3.86E-06 0.00 Trichlorofluoromethane (FREON 11) 0.01 0.01 4.62E-01 0.42 3.86E-07 0.00 Methylene Chloride (Dichloromethane) 0.04 0.02 9.24E-01 0.84 7.72E-07 0.02

1,1,-Dichloroethane 0.01 0.01 4.62E-01 0.42 3.86E-07 0.00 Benzene 0.014 0.01 6.47E-01 0.59 5.40E-07 0.00 Ethylbenzene 0.01 0.01 4.62E-01 0.42 3.86E-07 0.00 Styrene 0.01 0.01 4.62E-01 0.42 3.86E-07 0.00 1,1,1,2-Tetrachloroethane 0.01 0.01 4.62E-01 0.42 3.86E-07 0.00 1,2,3-Trichloropropane 0.02 0.02 9.24E-01 0.84 7.72E-07 0.00 Methyl Butyl Ketone (2-Hexanone) 0.03 0.03 1.39E+00 1.27 1.16E-06 0.00 Methyl Ethyl Ketone (2-Butanone) 0.04 0.04 1.85E+00 1.69 1.54E-06 0.00 Total Volatile Organic HAP 2.61 120.37 110.08 1.01E-04

Sample volume (Vmstd, liters) 21.65 Average % CO2by volume, dry 12.90 Average % O2by volume, dry 5.70 Run 1-Trap Set 3

Analytes Sample Catch

SPECIATED VOLATILE ORGANIC HAP TEST RESULTS SUMMARY
Vectren Corporation AB Brown Plant Unit 2 Stack February 24, 2010

Platt Environmental Services, Inc. Template Rev. 2/17/09Concentration Emissions Blank
(ug)(ug-Blank) (ug/dcsm) (ug/dscm @ 7%O2) (lbs/mmBtu)(ug) Chlorobenzene 0.01 0.01 4.60E-01 0.42 3.85E-07 0.00 1,4-Dichlorobenzene 0.02 0.02 9.20E-01 0.84 7.69E-07 0.00 Iodomethane 0.02 0.02 9.20E-01 0.84 7.69E-07 0.00 cis-1,2-Dichloroethylene 0.01 0.01 4.60E-01 0.42 3.85E-07 0.00 1,1,1-Trichloroethane 0.01 0.01 4.60E-01 0.42 3.85E-07 0.00 1,2-Dichloroethane 0.007 0.01 3.22E-01 0.29 2.69E-07 0.00 1,2-Dichloropropane 0.01 0.01 4.60E-01 0.42 3.85E-07 0.00 Vinyl Chlorine 0.01 0.01 4.60E-01 0.42 3.85E-07 0.00 trans-1,3-Dichloropropane 0.007 0.01 3.22E-01 0.29 2.69E-07 0.00 Tetrachloroethylene 0.02 0.02 9.20E-01 0.84 7.69E-07 0.00 Bromoform 0.01 0.01 4.60E-01 0.42 3.85E-07 0.00 Dichlorodifluoromethane (FREON 12) 0.02 0.02 9.20E-01 0.84 7.69E-07 0.00

Chloroethane 0.009 0.01 4.14E-01 0.38 3.46E-07 0.00 1,1-Dichloroethylene 0.01 0.01 4.60E-01 0.42 3.85E-07 0.00 trans-1,2-Dichloroethylene 0.01 0.01 4.60E-01 0.42 3.85E-07 0.00 m / p-Xylene 0.04 0.04 1.84E+00 1.68 1.54E-06 0.00 Toluene 0.19 0.02 9.20E-01 0.84 7.69E-07 0.17 0-Xylene 0.02 0.02 9.20E-01 0.84 7.69E-07 0.00 Acetone (2-Propanone) 0.07 0.07 3.22E+00 2.95 2.69E-06 0.00 Carbon Disulfide 1.01 1.01 4.65E+01 42.50 3.88E-05 0.00 Dibromomethane 0.01 0.01 4.60E-01 0.42 3.85E-07 0.00 Methyl Isobutyl Ketone 0.02 0.02 9.20E-01 0.84 7.69E-07 0.00 Ethylene Dibromide 0.01 0.01 4.60E-01 0.42 3.85E-07 0.00 1,3-Dichlorobenzene 0.02 0.02 9.20E-01 0.84 7.69E-07 0.00 1,2-Dichlorobenzene 0.02 0.02 9.20E-01 0.84 7.69E-07 0.00 Chloromethane 0.06 0.06 2.76E+00 2.52 2.31E-06 0.00 Chloroform 0.01 0.01 4.60E-01 0.42 3.85E-07 0.00 Carbon Tetrachloride 0.02 0.02 9.20E-01 0.84 7.69E-07 0.00 Trichloroethylene 0.07 0.07 3.22E+00 2.95 2.69E-06 0.00 Bromodichloromethane 0.01 0.01 4.60E-01 0.42 3.85E-07 0.00 cis-1,3-Dichloropropene 0.01 0.01 4.60E-01 0.42 3.85E-07 0.00 1,1,2-Trichloroethane 0.02 0.02 9.20E-01 0.84 7.69E-07 0.00 Dibromochloromethane 0.009 0.01 4.14E-01 0.38 3.46E-07 0.00 1,1,2,2-Tetrachloroethane 0.01 0.01 4.60E-01 0.42 3.85E-07 0.00 Bromomethane 0.11 0.11 5.06E+00 4.63 4.23E-06 0.00 Trichlorofluoromethane (FREON 11) 0.01 0.01 4.60E-01 0.42 3.85E-07 0.00 Methylene Chloride (Dichloromethane) 0.63 0.02 9.20E-01 0.84 7.69E-07 0.61

1,1,-Dichloroethane 0.01 0.01 4.60E-01 0.42 3.85E-07 0.00 Benzene 0.015 0.02 6.90E-01 0.63 5.77E-07 0.00 Ethylbenzene 0.01 0.01 4.60E-01 0.42 3.85E-07 0.00 Styrene 0.01 0.01 4.60E-01 0.42 3.85E-07 0.00 1,1,1,2-Tetrachloroethane 0.01 0.01 4.60E-01 0.42 3.85E-07 0.00 1,2,3-Trichloropropane 0.02 0.02 9.20E-01 0.84 7.69E-07 0.00 Methyl Butyl Ketone (2-Hexanone) 0.03 0.03 1.38E+00 1.26 1.15E-06 0.00 Methyl Ethyl Ketone (2-Butanone) 0.04 0.04 1.84E+00 1.68 1.54E-06 0.00 Total Volatile Organic HAP 1.93 88.66 81.08 7.41E-05 Sample volume (Vmstd, liters) 21.73 Average % CO2by volume, dry 12.90 Average % O2by volume, dry 5.70

Analytes Sample Catch

SPECIATED VOLATILE ORGANIC HAP TEST RESULTS SUMMARY Run 1-Trap Set 4 Vectren Corporation AB Brown Plant Unit 2 Stack February 24, 2010

Platt Environmental Services, Inc. Template Rev. 2/17/09Concentration Emissions Blank

(ug)(ug-Blank) (ug/dcsm) (ug/dscm @ 7%O2)(lbs/mmBtu)(ug) Chlorobenzene 0.40 0.40 4.60E+00 4.21 3.84E-060.00 1,4-Dichlorobenzene 0.40 0.40 4.60E+00 4.21 3.84E-060.00 Iodomethane 0.48 0.48 5.52E+00 5.05 4.61E-060.00 cis-1,2-Dichloroethylene 0.80 0.80 9.20E+00 8.41 7.69E-060.00 1,1,1-Trichloroethane 0.40 0.40 4.60E+00 4.21 3.84E-060.00 1,2-Dichloroethane 0.40 0.40 4.60E+00 4.21 3.84E-060.00 1,2-Dichloropropane 0.40 0.40 4.60E+00 4.21 3.84E-060.00 Vinyl Chlorine 0.32 0.32 3.68E+00 3.37 3.08E-060.00 trans-1,3-Dichloropropane 0.48 0.48 5.52E+00 5.05 4.61E-060.00 Tetrachloroethylene 0.40 0.40 4.60E+00 4.21 3.84E-060.00 Bromoform 0.32 0.32 3.68E+00 3.37 3.08E-060.00 Dichlorodifluoromethane (FREON 12) 0.80 0.80 9.20E+00 8.41 7.69E-060.00

Chloroethane 0.80 0.80 9.20E+00 8.41 7.69E-060.00 1,1-Dichloroethylene 0.80 0.80 9.20E+00 8.41 7.69E-060.00 trans-1,2-Dichloroethylene 0.80 0.80 9.20E+00 8.41 7.69E-060.00 m / p-Xylene 0.40 0.40 4.60E+00 4.21 3.84E-060.00 Toluene 0.40 0.40 4.60E+00 4.21 3.84E-060.00 0-Xylene 0.40 0.40 4.60E+00 4.21 3.84E-060.00 Acetone (2-Propanone) 23.60 23.60 2.71E+02 248.19 2.27E-040.00 Carbon Disulfide 0.40 0.40 4.60E+00 4.21 3.84E-060.00 Dibromomethane 0.40 0.40 4.60E+00 4.21 3.84E-060.00 Methyl Isobutyl Ketone 4.00 4.00 4.60E+01 42.07 3.84E-05 0.00 Ethylene Dibromide 0.40 0.40 4.60E+00 4.21 3.84E-060.00 1,3-Dichlorobenzene 0.40 0.40 4.60E+00 4.21 3.84E-060.00 1,2-Dichlorobenzene 0.40 0.40 4.60E+00 4.21 3.84E-060.00 Chloromethane 1.60 1.60 1.84E+01 16.83 1.54E-05 0.00 Chloroform 0.32 0.32 3.68E+00 3.37 3.08E-060.00 Carbon Tetrachloride 0.40 0.40 4.60E+00 4.21 3.84E-060.00 Trichloroethylene 0.40 0.40 4.60E+00 4.21 3.84E-060.00 Bromodichloromethane 0.32 0.32 3.68E+00 3.37 3.08E-060.00 cis-1,3-Dichloropropene 0.32 0.32 3.68E+00 3.37 3.08E-060.00 1,1,2-Trichloroethane 0.40 0.40 4.60E+00 4.21 3.84E-060.00 Dibromochloromethane 0.32 0.32 3.68E+00 3.37 3.08E-060.00 1,1,2,2-Tetrachloroethane 1.60 1.60 1.84E+01 16.83 1.54E-05 0.00 Bromomethane 2.40 2.40 2.76E+01 25.24 2.31E-05 0.00 Trichlorofluoromethane (FREON 11) 1.60 1.60 1.84E+01 16.83 1.54E-05 0.00 Methylene Chloride (Dichloromethane) 44.00 44.00 5.06E+02 462.72 4.23E-040.00

1,1,-Dichloroethane 0.32 0.32 3.68E+00 3.37 3.08E-060.00 Benzene 0.40 0.40 4.60E+00 4.21 3.84E-060.00 Ethylbenzene 0.40 0.40 4.60E+00 4.21 3.84E-060.00 Styrene 0.40 0.40 4.60E+00 4.21 3.84E-060.00 1,1,1,2-Tetrachloroethane 0.40 0.40 4.60E+00 4.21 3.84E-060.00 1,2,3-Trichloropropane 0.48 0.48 5.52E+00 5.05 4.61E-060.00 Methyl Butyl Ketone (2-Hexanone) 4.00 4.00 4.60E+01 42.07 3.84E-05 0.00 Methyl Ethyl Ketone (2-Butanone) 4.00 4.00 4.60E+01 42.07 3.84E-05 0.00 Total Volatile Organic HAP 102.88 1183.12 1081.93 9.89E-04

Sample volume (Vmstd, liters) 86.96 Average % CO2by volume, dry 12.90 Average % O2by volume, dry 5.70Run 1-Condensate

Analytes Sample Catch

SPECIATED VOLATILE ORGANIC HAP TEST RESULTS SUMMARY
Vectren Corporation AB Brown Plant Unit 2 Stack February 24, 2010

Platt Environmental Services, Inc. Template Rev. 2/17/09Platt Environmental Services, Inc. Template Rev. 2/17/09Concentration Emissions Blank

(ug)(ug-Blank) (ug/dcsm) (ug/dscm @ 7%O2) (lbs/mmBtu) (ug) Chlorobenzene 0.44 0.44 5.06E+00 4.63 4.23E-06 0.00 1,4-Dichlorobenzene 0.48 0.48 5.52E+00 5.05 4.61E-06 0.00 Iodomethane 0.56 0.56 6.44E+00 5.89 5.38E-06 0.00 cis-1,2-Dichloroethy

lene 0.84 0.84 9.66E+00 8.83 8.07E-06 0.00 1,1,1-Trichloroethane 0.44 0.44 5.06E+00 4.63 4.23E-06 0.00 1,2-Dichloroethane 0.43 0.43 4.92E+00 4.50 4.11E-06 0.00 1,2-Dichloropropane 0.44 0.44 5.06E+00 4.63 4.23E-06 0.00 Vinyl Chlorine 0.36 0.36 4.14E+00 3.79 3.46E-06 0.00 trans-1,3-Dichloropropane 0.51 0.51 5.84E+00 5.34 4.88E-06 0.00 Tetrachloroethy

lene 0.48 0.48 5.52E+00 5.05 4.61E-06 0.00 Bromoform 0.36 0.36 4.14E+00 3.79 3.46E-06 0.00 Dichlorodifluoromethane (FREON 12) 0.88 0.88 1.01E+01 9.25 8.46E-06 0.00

Chloroethane 0.84 0.84 9.61E+00 8.79 8.04E-06 0.00 1,1-Dichloroethy

lene 0.84 0.84 9.66E+00 8.83 8.07E-06 0.00 trans-1,2-Dichloroethy

lene 0.84 0.84 9.66E+00 8.83 8.07E-06 0.00 m / p-Xy lene 0.50 0.50 5.75E+00 5.26 4.81E-06 0.00 Toluene 0.68 0.51 5.87E+00 5.36 4.90E-06 0.17 0-Xy lene 0.48 0.48 5.52E+00 5.05 4.61E-06 0.00 Acetone (2-Propanone) 23.86 23.86 2.74E+02 250.92 2.29E-04 0.00 Carbon Disulfide 7.88 7.88 9.06E+01 82.87 7.57E-05 0.00 Dibromomethane 0.44 0.44 5.06E+00 4.63 4.23E-06 0.00 Methy l Isobuty l Ketone 4.08 4.08 4.69E+01 42.91 3.92E-05 0.00 Ethy lene Dibromide 0.44 0.44 5.06E+00 4.63 4.23E-06 0.00 1,3-Dichlorobenzene 0.48 0.48 5.52E+00 5.05 4.61E-06 0.00 1,2-Dichlorobenzene 0.48 0.48 5.52E+00 5.05 4.61E-06 0.00 Chloromethane 1.89 1.89 2.17E+01 19.88 1.82E-05 0.00 Chloroform 0.36 0.36 4.14E+00 3.79 3.46E-06 0.00 Carbon Tetrachloride 0.48 0.48 5.52E+00 5.05 4.61E-06 0.00 Trichloroethy

lene 0.50 0.50 5.75E+00 5.26 4.81E-06 0.00 Bromodichloromethane 0.36 0.36 4.14E+00 3.79 3.46E-06 0.00 cis-1,3-Dichloropropene 0.36 0.36 4.14E+00 3.79 3.46E-06 0.00 1,1,2-Trichloroethane 0.48 0.48 5.52E+00 5.05 4.61E-06 0.00 Dibromochloromethane 0.36 0.36 4.09E+00 3.74 3.42E-06 0.00 1,1,2,2-Tetrachloroethane 1.64 1.64 1.89E+01 17.25 1.58E-05 0.00 Bromomethane 2.85 2.85 3.28E+01 29.97 2.74E-05 0.00 Trichlorofluoromethane (FREON 11) 1.65 1.65 1.90E+01 17.35 1.59E-05 0.00 Methy lene Chloride (Dichloromethane) 45.01 44.08 5.07E+02 463.57 4.24E-04 0.93 1,1,-Dichloroethane 0.36 0.36 4.14E+00 3.79 3.46E-06 0.00 Benzene 0.47 0.47 5.43E+00 4.96 4.54E-06 0.00 Ethy lbenzene 0.44 0.44 5.06E+00 4.63 4.23E-06 0.00 Sty rene 0.44 0.44 5.06E+00 4.63 4.23E-06 0.00 1,1,1,2-Tetrachloroethane 0.44 0.44 5.06E+00 4.63 4.23E-06 0.00 1,2,3-Trichloropropane 0.56 0.56 6.44E+00 5.89 5.38E-06 0.00 Methy l Buty l Ketone (2-Hexanone) 4.12 4.12 4.74E+01 43.33 3.96E-05 0.00 Methy l Ethy l Ketone (2-Butanone) 4.16 4.16 4.78E+01 43.75 4.00E-05 0.00 Total Volatile Organic HAP 113.88 1309.62 1197.61 1.09E-03

Sample volume (Vmstd, liters) 86.96 Average % CO2by volume, dry 12.90 Average % O2by volume, dry 5.70 Sample Catch SPECIATED VOLATILE ORGANIC HAP TEST RESULTS SUMMARY Run 1-Total Vectren Corporation AB Brown Plant Unit 2 Stack February 24, 2010

Analytes

Platt Environmental Services, Inc. Template Rev. 2/17/09Concentration Emissions Blank

(ug)(ug-Blank) (ug/dcsm) (ug/dscm @ 7%O2) (lbs/mmBtu) (ug) Chlorobenzene 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 1,4-Dichlorobenzene 0.02 0.02 9.23E-01 0.84 7.68E-07 0.00 Iodomethane 0.02 0.02 9.23E-01 0.84 7.68E-07 0.00 cis-1,2-Dichloroethylene 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 1,1,1-Trichloroethane 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 1,2-Dichloroethane 0.007 0.01 3.23E-01 0.30 2.69E-07 0.00 1,2-Dichloropropane 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 Vinyl Chlorine 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 trans-1,3-Dichloropropane 0.007 0.01 3.23E-01 0.30 2.69E-07 0.00 Tetrachloroethylene 0.02 0.02 9.23E-01 0.84 7.68E-07 0.00 Bromoform 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 Dichlorodifluoromethane (FREON 12) 0.02 0.02 9.23E-01 0.84 7.68E-07 0.00

Chloroethane 0.009 0.01 4.15E-01 0.38 3.46E-07 0.00 1,1-Dichloroethylene 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 trans-1,2-Dichloroethylene 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 m / p-Xylene 0.02 0.02 9.23E-01 0.84 7.68E-07 0.00 Toluene 0.03 0.02 9.23E-01 0.84 7.68E-07 0.01 0-Xylene 0.02 0.02 9.23E-01 0.84 7.68E-07 0.00 Acetone (2-Propanone) 0.05 0.05 2.31E+00 2.11 1.92E-06 0.00 Carbon Disulfide 1.66 1.66 7.66E+01 70.04 6.37E-05 0.00 Dibromomethane 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 Methyl Isobutyl Ketone 0.02 0.02 9.23E-01 0.84 7.68E-07 0.00 Ethylene Dibromide 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 1,3-Dichlorobenzene 0.02 0.02 9.23E-01 0.84 7.68E-07 0.00 1,2-Dichlorobenzene 0.02 0.02 9.23E-01 0.84 7.68E-07 0.00 Chloromethane 0.09 0.09 4.15E+00 3.80 3.46E-06 0.00 Chloroform 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 Carbon Tetrachloride 0.02 0.02 9.23E-01 0.84 7.68E-07 0.00 Trichloroethylene 0.03 0.03 1.38E+00 1.27 1.15E-06 0.00 Bromodichloromethane 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 cis-1,3-Dichloropropene 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 1,1,2-Trichloroethane 0.02 0.02 9.23E-01 0.84 7.68E-07 0.00 Dibromochloromethane 0.009 0.01 4.15E-01 0.38 3.46E-07 0.00 1,1,2,2-Tetrachloroethane 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 Bromomethane 0.13 0.13 6.00E+00 5.48 4.99E-06 0.00 Trichlorofluoromethane (FREON 11) 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 Methylene Chloride (Dichloromethane) 0.14 0.02 9.23E-01 0.84 7.68E-07 0.12 1,1,-Dichloroethane 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 Benzene 0.014 0.01 6.46E-01 0.59 5.38E-07 0.00 Ethylbenzene 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 Styrene 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 1,1,1,2-Tetrachloroethane 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 1,2,3-Trichloropropane 0.02 0.02 9.23E-01 0.84 7.68E-07 0.00 Methyl Butyl Ketone (2-Hexanone) 0.03 0.03 1.38E+00 1.27 1.15E-06 0.00 Methyl Ethyl Ketone (2-Butanone) 0.04 0.04 1.85E+00 1.69 1.54E-06 0.00 Total Volatile Organic HAP 2.55 117.47 107.42 9.78E-05

Sample volume (Vmstd, liters) 21.67 Average % CO2by volume, dry 13.10 Average % O2by volume, dry 5.70

Analytes Sample Catch

SPECIATED VOLATILE ORGANIC HAP TEST RESULTS SUMMARY Run 2-Trap Set 1 Vectren Corporation AB Brown Plant Unit 2 Stack February 24, 2010

Platt Environmental Services, Inc. Template Rev. 2/17/09Concentration Emissions Blank
(ug)(ug-Blank) (ug/dcsm) (ug/dscm @ 7%O2) (lbs/mmBtu) (ug) Chlorobenzene 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 1,4-Dichlorobenzene 0.02 0.02 9.22E-01 0.84 7.67E-07 0.00 Iodomethane 0.02 0.02 9.22E-01 0.84 7.67E-07 0.00 cis-1,2-Dichloroethylene 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 1,1,1-Trichloroethane 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 1,2-Dichloroethane 0.007 0.01 3.23E-01 0.30 2.69E-07 0.00 1,2-Dichloropropane 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 Vinyl Chlorine 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 trans-1,3-Dichloropropane 0.007 0.01 3.23E-01 0.30 2.69E-07 0.00 Tetrachloroethylene 0.02 0.02 9.22E-01 0.84 7.67E-07 0.00 Bromoform 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 Dichlorodifluoromethane (FREON 12) 0.02 0.02 9.22E-01 0.84 7.67E-07 0.00

Chloroethane 0.009 0.01 4.15E-01 0.38 3.45E-07 0.00 1,1-Dichloroethylene 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 trans-1,2-Dichloroethylene 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 m / p-Xylene 0.02 0.02 9.22E-01 0.84 7.67E-07 0.00 Toluene 0.11 0.02 9.22E-01 0.84 7.67E-07 0.09 0-Xylene 0.02 0.02 9.22E-01 0.84 7.67E-07 0.00 Acetone (2-Propanone) 0.09 0.09 4.15E+00 3.79 3.45E-06 0.00 Carbon Disulfide 1.38 1.38 6.36E+01 58.17 5.29E-05 0.00 Dibromomethane 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 Methyl Isobutyl Ketone 0.02 0.02 9.22E-01 0.84 7.67E-07 0.00 Ethylene Dibromide 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 1,3-Dichlorobenzene 0.02 0.02 9.22E-01 0.84 7.67E-07 0.00 1,2-Dichlorobenzene 0.02 0.02 9.22E-01 0.84 7.67E-07 0.00 Chloromethane 0.05 0.05 2.30E+00 2.11 1.92E-06 0.00 Chloroform 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 Carbon Tetrachloride 0.02 0.02 9.22E-01 0.84 7.67E-07 0.00 Trichloroethylene 0.03 0.03 1.38E+00 1.26 1.15E-06 0.00 Bromodichloromethane 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 cis-1,3-Dichloropropene 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 1,1,2-Trichloroethane 0.02 0.02 9.22E-01 0.84 7.67E-07 0.00 Dibromochloromethane 0.009 0.01 4.15E-01 0.38 3.45E-07 0.00 1,1,2,2-Tetrachloroethane 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 Bromomethane 0.06 0.06 2.77E+00 2.53 2.30E-06 0.00 Trichlorofluoromethane (FREON 11) 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 Methylene Chloride (Dichloromethane) 0.36 0.02 9.22E-01 0.84 7.67E-07 0.34 1,1,-Dichloroethane 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 Benzene 0.015 0.02 6.91E-01 0.63 5.75E-07 0.00 Ethylbenzene 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 Styrene 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 1,1,1,2-Tetrachloroethane 0.01 0.01 4.61E-01 0.42 3.84E-07 0.00 1,2,3-Trichloropropane 0.02 0.02 9.22E-01 0.84 7.67E-07 0.00 Methyl Butyl Ketone (2-Hexanone) 0.03 0.03 1.38E+00 1.26 1.15E-06 0.00 Methyl Ethyl Ketone (2-Butanone) 0.04 0.04 1.84E+00 1.69 1.53E-06 0.00 Total Volatile Organic HAP 2.20 101.27 92.61 8.43E-05 Sample volume (Vmstd, liters) 21.69 Average % CO2by volume, dry 13.10 Average % O2by volume, dry 5.70 AB Brown Plant

Analytes Sample CatchUnit 2 Stack February 24, 2010 SPECIATED VOLATILE ORGANIC HAP TEST RESULTS SUMMARY Run 2-Trap Set 2 Vectren Corporation

Platt Environmental Services, Inc. Template Rev. 2/17/09Concentration Emissions Blank

(ug)(ug-Blank) (ug/dcsm) (ug/dscm @ 7%O2) (lbs/mmBtu)(ug) Chlorobenzene 0.01 0.01 4.59E-01 0.42 3.82E-07 0.00 1,4-Dichlorobenzene 0.02 0.02 9.18E-01 0.84 7.64E-07 0.00 Iodomethane 0.02 0.02 9.18E-01 0.84 7.64E-07 0.00 cis-1,2-Dichloroethylene 0.01 0.01 4.59E-01 0.42 3.82E-07 0.00 1,1,1-Trichloroethane 0.01 0.01 4.59E-01 0.42 3.82E-07 0.00 1,2-Dichloroethane 0.007 0.01 3.21E-01 0.29 2.67E-07 0.00 1,2-Dichloropropane 0.01 0.01 4.59E-01 0.42 3.82E-07 0.00 Vinyl Chlorine 0.01 0.01 4.59E-01 0.42 3.82E-07 0.00 trans-1,3-Dichloropropane 0.007 0.01 3.21E-01 0.29 2.67E-07 0.00 Tetrachloroethylene 0.01 0.01 4.59E-01 0.42 3.82E-07 0.00 Bromoform 0.01 0.01 4.59E-01 0.42 3.82E-07 0.00 Dichlorodifluoromethane (FREON 12) 0.02 0.02 9.18E-01 0.84 7.64E-07 0.00

Chloroethane 0.009 0.01 4.13E-01 0.38 3.44E-07 0.00 1,1-Dichloroethylene 0.01 0.01 4.59E-01 0.42 3.82E-07 0.00 trans-1,2-Dichloroethylene 0.01 0.01 4.59E-01 0.42 3.82E-07 0.00 m / p-Xylene 0.02 0.02 9.18E-01 0.84 7.64E-07 0.00 Toluene 0.37 0.12 5.51E+00 5.04 4.58E-06 0.25 0-Xylene 0.02 0.02 9.18E-01 0.84 7.64E-07 0.00 Acetone (2-Propanone) 0.08 0.08 3.67E+00 3.36 3.06E-06 0.00 Carbon Disulfide 0.97 0.97 4.45E+01 40.70 3.70E-05 0.00 Dibromomethane 0.01 0.01 4.59E-01 0.42 3.82E-07 0.00 Methyl Isobutyl Ketone 0.02 0.02 9.18E-01 0.84 7.64E-07 0.00 Ethylene Dibromide 0.01 0.01 4.59E-01 0.42 3.82E-07 0.00 1,3-Dichlorobenzene 0.02 0.02 9.18E-01 0.84 7.64E-07 0.00 1,2-Dichlorobenzene 0.02 0.02 9.18E-01 0.84 7.64E-07 0.00 Chloromethane 0.05 0.05 2.29E+00 2.10 1.91E-06 0.00 Chloroform 0.01 0.01 4.59E-01 0.42 3.82E-07 0.00 Carbon Tetrachloride 0.02 0.02 9.18E-01 0.84 7.64E-07 0.00 Trichloroethylene 0.02 0.02 9.18E-01 0.84 7.64E-07 0.00 Bromodichloromethane 0.01 0.01 4.59E-01 0.42 3.82E-07 0.00 cis-1,3-Dichloropropene 0.01 0.01 4.59E-01 0.42 3.82E-07 0.00 1,1,2-Trichloroethane 0.02 0.02 9.18E-01 0.84 7.64E-07 0.00 Dibromochloromethane 0.009 0.01 4.13E-01 0.38 3.44E-07 0.00 1,1,2,2-Tetrachloroethane 0.01 0.01 4.59E-01 0.42 3.82E-07 0.00 Bromomethane 0.03 0.03 1.38E+00 1.26 1.15E-06 0.00 Trichlorofluoromethane (FREON 11) 0.01 0.01 4.59E-01 0.42 3.82E-07 0.00 Methylene Chloride (Dichloromethane) 0.51 0.02 9.18E-01 0.84 7.64E-07 0.49

1,1,-Dichloroethane 0.01 0.01 4.59E-01 0.42 3.82E-07 0.00 Benzene 0.011 0.01 5.05E-01 0.46 4.20E-07 0.00 Ethylbenzene 0.01 0.01 4.59E-01 0.42 3.82E-07 0.00 Styrene 0.01 0.01 4.59E-01 0.42 3.82E-07 0.00 1,1,1,2-Tetrachloroethane 0.01 0.01 4.59E-01 0.42 3.82E-07 0.00 1,2,3-Trichloropropane 0.02 0.02 9.18E-01 0.84 7.64E-07 0.00 Methyl Butyl Ketone (2-Hexanone) 0.03 0.03 1.38E+00 1.26 1.15E-06 0.00 Methyl Ethyl Ketone (2-Butanone) 0.04 0.04 1.84E+00 1.68 1.53E-06 0.00 Total Volatile Organic HAP 1.82 83.65 76.50 6.96E-05

Sample volume (Vmstd, liters) 21.79 Average % CO2by volume, dry 13.10 Average % O2by volume, dry 5.70 AB Brown Plant Run 2-Trap Set 3

Sample Catch

AnalytesSPECIATED VOLATILE ORGANIC HAP TEST RESULTS SUMMARY
Vectren Corporation

Unit 2 Stack February 24, 2010

Platt Environmental Services, Inc. Template Rev. 2/17/09Concentration Emissions Blank
(ug)(ug-Blank) (ug/dcsm) (ug/dscm @ 7%O2) (lbs/mmBtu)(ug) Chlorobenzene 0.01 0.01 4.60E-01 0.42 3.83E-07 0.00 1,4-Dichlorobenzene 0.02 0.02 9.20E-01 0.84 7.66E-07 0.00 Iodomethane 0.02 0.02 9.20E-01 0.84 7.66E-07 0.00 cis-1,2-Dichloroethylene 0.01 0.01 4.60E-01 0.42 3.83E-07 0.00 1,1,1-Trichloroethane 0.01 0.01 4.60E-01 0.42 3.83E-07 0.00 1,2-Dichloroethane 0.007 0.01 3.22E-01 0.29 2.68E-07 0.00 1,2-Dichloropropane 0.01 0.01 4.60E-01 0.42 3.83E-07 0.00 Vinyl Chlorine 0.01 0.01 4.60E-01 0.42 3.83E-07 0.00 trans-1,3-Dichloropropane 0.007 0.01 3.22E-01 0.29 2.68E-07 0.00 Tetrachloroethylene 0.02 0.02 9.20E-01 0.84 7.66E-07 0.00 Bromoform 0.01 0.01 4.60E-01 0.42 3.83E-07 0.00 Dichlorodifluoromethane (FREON 12) 0.02 0.02 9.20E-01 0.84 7.66E-07 0.00

Chloroethane 0.009 0.01 4.14E-01 0.38 3.45E-07 0.00 1,1-Dichloroethylene 0.01 0.01 4.60E-01 0.42 3.83E-07 0.00 trans-1,2-Dichloroethylene 0.01 0.01 4.60E-01 0.42 3.83E-07 0.00 m / p-Xylene 0.02 0.02 9.20E-01 0.84 7.66E-07 0.00 Toluene 0.05 0.02 9.20E-01 0.84 7.66E-07 0.03 0-Xylene 0.02 0.02 9.20E-01 0.84 7.66E-07 0.00 Acetone (2-Propanone) 0.06 0.06 2.76E+00 2.52 2.30E-06 0.00 Carbon Disulfide 0.86 0.86 3.96E+01 36.19 3.29E-05 0.00 Dibromomethane 0.01 0.01 4.60E-01 0.42 3.83E-07 0.00 Methyl Isobutyl Ketone 0.02 0.02 9.20E-01 0.84 7.66E-07 0.00 Ethylene Dibromide 0.01 0.01 4.60E-01 0.42 3.83E-07 0.00 1,3-Dichlorobenzene 0.02 0.02 9.20E-01 0.84 7.66E-07 0.00 1,2-Dichlorobenzene 0.02 0.02 9.20E-01 0.84 7.66E-07 0.00 Chloromethane 0.07 0.07 3.22E+00 2.95 2.68E-06 0.00 Chloroform 0.01 0.01 4.60E-01 0.42 3.83E-07 0.00 Carbon Tetrachloride 0.02 0.02 9.20E-01 0.84 7.66E-07 0.00 Trichloroethylene 0.03 0.03 1.38E+00 1.26 1.15E-06 0.00 Bromodichloromethane 0.01 0.01 4.60E-01 0.42 3.83E-07 0.00 cis-1,3-Dichloropropene 0.01 0.01 4.60E-01 0.42 3.83E-07 0.00 1,1,2-Trichloroethane 0.02 0.02 9.20E-01 0.84 7.66E-07 0.00 Dibromochloromethane 0.009 0.01 4.14E-01 0.38 3.45E-07 0.00 1,1,2,2-Tetrachloroethane 0.01 0.01 4.60E-01 0.42 3.83E-07 0.00 Bromomethane 0.14 0.14 6.44E+00 5.89 5.36E-06 0.00 Trichlorofluoromethane (FREON 11) 0.01 0.01 4.60E-01 0.42 3.83E-07 0.00 Methylene Chloride (Dichloromethane) 0.28 0.02 9.20E-01 0.84 7.66E-07 0.26

1,1,-Dichloroethane 0.01 0.01 4.60E-01 0.42 3.83E-07 0.00 Benzene 0.012 0.01 5.52E-01 0.50 4.60E-07 0.00 Ethylbenzene 0.01 0.01 4.60E-01 0.42 3.83E-07 0.00 Styrene 0.01 0.01 4.60E-01 0.42 3.83E-07 0.00 1,1,1,2-Tetrachloroethane 0.01 0.01 4.60E-01 0.42 3.83E-07 0.00 1,2,3-Trichloropropane 0.02 0.02 9.20E-01 0.84 7.66E-07 0.00 Methyl Butyl Ketone (2-Hexanone) 0.03 0.03 1.38E+00 1.26 1.15E-06 0.00 Methyl Ethyl Ketone (2-Butanone) 0.04 0.04 1.84E+00 1.68 1.53E-06 0.00 Total Volatile Organic HAP 1.74 80.25 73.38 6.68E-05 Sample volume (Vmstd, liters) 21.73 Average % CO2by volume, dry 13.10 Average % O2by volume, dry 5.70

Analytes Sample Catch Run 2-Trap Set 4 Vectren Corporation AB Brown Plant Unit 2 Stack February 24, 2010 SPECIATED VOLATILE ORGANIC HAP TEST RESULTS SUMMARY

Platt Environmental Services, Inc. Template Rev. 2/17/09Concentration Emissions Blank

(ug)(ug-Blank)(ug/dcsm)(ug/dscm @ 7%O2)(lbs/mmBtu)(ug) Chlorobenzene 0.40 0.40 4.60E+00 4.21 3.83E-060.00 1,4-Dichlorobenzene 0.40 0.40 4.60E+00 4.21 3.83E-060.00 Iodomethane 0.48 0.48 5.52E+00 5.05 4.60E-060.00 cis-1,2-Dichloroethylene 0.80 0.80 9.21E+00 8.42 7.66E-060.00 1,1,1-Trichloroethane 0.40 0.40 4.60E+00 4.21 3.83E-060.00 1,2-Dichloroethane 0.40 0.40 4.60E+00 4.21 3.83E-060.00 1,2-Dichloropropane 0.40 0.40 4.60E+00 4.21 3.83E-060.00 Vinyl Chlorine 0.32 0.32 3.68E+00 3.37 3.06E-060.00 trans-1,3-Dichloropropane 0.48 0.48 5.52E+00 5.05 4.60E-060.00 Tetrachloroethylene 0.40 0.40 4.60E+00 4.21 3.83E-060.00 Bromoform 0.32 0.32 3.68E+00 3.37 3.06E-060.00 Dichlorodifluoromethane (FREON 12) 0.80 0.80 9.21E+00 8.42 7.66E-060.00

Chloroethane 0.80 0.80 9.21E+00 8.42 7.66E-060.00 1,1-Dichloroethylene 0.80 0.80 9.21E+00 8.42 7.66E-060.00 trans-1,2-Dichloroethylene 0.80 0.80 9.21E+00 8.42 7.66E-060.00 m / p-Xylene 0.40 0.40 4.60E+00 4.21 3.83E-060.00 Toluene 0.40 0.40 4.60E+00 4.21 3.83E-060.00 0-Xylene 0.40 0.40 4.60E+00 4.21 3.83E-060.00 Acetone (2-Propanone) 23.60 23.60 2.72E+02 248.37 2.26E-040.00 Carbon Disulfide 0.40 0.40 4.60E+00 4.21 3.83E-060.00 Dibromomethane 0.40 0.40 4.60E+00 4.21 3.83E-060.00 Methyl Isobutyl Ketone 4.00 4.00 4.60E+01 42.10 3.83E-05 0.00 Ethylene Dibromide 0.40 0.40 4.60E+00 4.21 3.83E-060.00 1,3-Dichlorobenzene 0.40 0.40 4.60E+00 4.21 3.83E-060.00 1,2-Dichlorobenzene 0.40 0.40 4.60E+00 4.21 3.83E-060.00 Chloromethane 1.60 1.60 1.84E+01 16.84 1.53E-05 0.00 Chloroform 0.32 0.32 3.68E+00 3.37 3.06E-060.00 Carbon Tetrachloride 0.40 0.40 4.60E+00 4.21 3.83E-060.00 Trichloroethylene 0.40 0.40 4.60E+00 4.21 3.83E-060.00 Bromodichloromethane 0.32 0.32 3.68E+00 3.37 3.06E-060.00 cis-1,3-Dichloropropene 0.32 0.32 3.68E+00 3.37 3.06E-060.00 1,1,2-Trichloroethane 0.40 0.40 4.60E+00 4.21 3.83E-060.00 Dibromochloromethane 0.32 0.32 3.68E+00 3.37 3.06E-060.00 1,1,2,2-Tetrachloroethane 1.60 1.60 1.84E+01 16.84 1.53E-05 0.00 Bromomethane 2.40 2.40 2.76E+01 25.26 2.30E-05 0.00 Trichlorofluoromethane (FREON 11) 1.60 1.60 1.84E+01 16.84 1.53E-05 0.00 Methylene Chloride (Dichloromethane) 35.20 35.20 4.05E+02 370.45 3.37E-040.00

1,1,-Dichloroethane 0.32 0.32 3.68E+00 3.37 3.06E-060.00 Benzene 0.40 0.40 4.60E+00 4.21 3.83E-060.00 Ethylbenzene 0.40 0.40 4.60E+00 4.21 3.83E-060.00 Styrene 0.40 0.40 4.60E+00 4.21 3.83E-060.00 1,1,1,2-Tetrachloroethane 0.40 0.40 4.60E+00 4.21 3.83E-060.00 1,2,3-Trichloropropane 0.48 0.48 5.52E+00 5.05 4.60E-060.00 Methyl Butyl Ketone (2-Hexanone) 4.00 4.00 4.60E+01 42.10 3.83E-05 0.00 Methyl Ethyl Ketone (2-Butanone) 4.00 4.00 4.60E+01 42.10 3.83E-05 0.00 Total Volatile Organic HAP 94.08 1082.70 990.10 9.01E-04

Sample volume (Vmstd, liters) 86.89 Average % CO2by volume, dry 13.10 Average % O2by volume, dry 5.70Run 2-Condensate

Analytes Sample Catch

SPECIATED VOLATILE ORGANIC HAP TEST RESULTS SUMMARY
Vectren Corporation AB Brown Plant Unit 2 Stack February 24, 2010

Platt Environmental Services, Inc. Template Rev. 2/17/09Platt Environmental Services, Inc. Template Rev. 2/17/09Concentration Emissions Blank

(ug)(ug-Blank) (ug/dcsm) (ug/dscm @ 7%O2) (lbs/mmBtu) (ug) Chlorobenzene 0.44 0.44 5.06E+00 4.63 4.21E-06 0.00 1,4-Dichlorobenzene 0.48 0.48 5.52E+00 5.05 4.60E-06 0.00 Iodomethane 0.56 0.56 6.44E+00 5.89 5.36E-06 0.00 cis-1,2-Dichloroethylene 0.84 0.84 9.67E+00 8.84 8.05E-06 0.00 1,1,1-Trichloroethane 0.44 0.44 5.06E+00 4.63 4.21E-06 0.00 1,2-Dichloroethane 0.43 0.43 4.93E+00 4.50 4.10E-06 0.00 1,2-Dichloropropane 0.44 0.44 5.06E+00 4.63 4.21E-06 0.00 Vinyl Chlorine 0.36 0.36 4.14E+00 3.79 3.45E-06 0.00 trans-1,3-Dichloropropane 0.51 0.51 5.85E+00 5.35 4.87E-06 0.00 Tetrachloroethylene 0.47 0.47 5.41E+00 4.95 4.50E-06 0.00 Bromoform 0.36 0.36 4.14E+00 3.79 3.45E-06 0.00 Dichlorodifluoromethane (FREON 12) 0.88 0.88 1.01E+01 9.26 8.43E-06 0.00

Chloroethane 0.84 0.84 9.62E+00 8.80 8.01E-06 0.00 1,1-Dichloroethylene 0.84 0.84 9.67E+00 8.84 8.05E-06 0.00 trans-1,2-Dichloroethylene 0.84 0.84 9.67E+00 8.84 8.05E-06 0.00 m / p-Xylene 0.48 0.48 5.52E+00 5.05 4.60E-06 0.00 Toluene 0.96 0.58 6.67E+00 6.10 5.56E-06 0.38 0-Xylene 0.48 0.48 5.52E+00 5.05 4.60E-06 0.00 Acetone (2-Propanone) 23.88 23.88 2.75E+02 251.31 2.29E-04 0.00 Carbon Disulfide 5.27 5.27 6.06E+01 55.46 5.05E-05 0.00 Dibromomethane 0.44 0.44 5.06E+00 4.63 4.21E-06 0.00 Methyl Isobutyl Ketone 4.08 4.08 4.70E+01 42.94 3.91E-05 0.00 Ethylene Dibromide 0.44 0.44 5.06E+00 4.63 4.21E-06 0.00 1,3-Dichlorobenzene 0.48 0.48 5.52E+00 5.05 4.60E-06 0.00 1,2-Dichlorobenzene 0.48 0.48 5.52E+00 5.05 4.60E-06 0.00 Chloromethane 1.86 1.86 2.14E+01 19.57 1.78E-05 0.00 Chloroform 0.36 0.36 4.14E+00 3.79 3.45E-06 0.00 Carbon Tetrachloride 0.48 0.48 5.52E+00 5.05 4.60E-06 0.00 Trichloroethylene 0.51 0.51 5.87E+00 5.37 4.88E-06 0.00 Bromodichloromethane 0.36 0.36 4.14E+00 3.79 3.45E-06 0.00 cis-1,3-Dichloropropene 0.36 0.36 4.14E+00 3.79 3.45E-06 0.00 1,1,2-Trichloroethane 0.48 0.48 5.52E+00 5.05 4.60E-06 0.00 Dibromochloromethane 0.36 0.36 4.10E+00 3.75 3.41E-06 0.00 1,1,2,2-Tetrachloroethane 1.64 1.64 1.89E+01 17.26 1.57E-05 0.00 Bromomethane 2.76 2.76 3.18E+01 29.05 2.64E-05 0.00 Trichlorofluoromethane (FREON 11) 1.64 1.64 1.89E+01 17.26 1.57E-05 0.00 Methylene Chloride (Dichloromethane) 36.49 35.28 4.06E+02 371.29 3.38E-04 1.21 1,1,-Dichloroethane 0.36 0.36 4.14E+00 3.79 3.45E-06 0.00 Benzene 0.45 0.45 5.20E+00 4.76 4.33E-06 0.00 Ethylbenzene 0.44 0.44 5.06E+00 4.63 4.21E-06 0.00 Styrene 0.44 0.44 5.06E+00 4.63 4.21E-06 0.00 1,1,1,2-Tetrachloroethane 0.44 0.44 5.06E+00 4.63 4.21E-06 0.00 1,2,3-Trichloropropane 0.56 0.56 6.44E+00 5.89 5.36E-06 0.00 Methyl Butyl Ketone (2-Hexanone) 4.12 4.12 4.74E+01 43.36 3.95E-05 0.00 Methyl Ethyl Ketone (2-Butanone) 4.16 4.16 4.79E+01 43.78 3.98E-05 0.00 Total Volatile Organic HAP 102.39 1178.34 1077.56 9.81E-04

Sample volume (Vmstd, liters) 86.89 Average % CO2by volume, dry 13.10 Average % O2by volume, dry 5.70 SPECIATED VOLATILE ORGANIC HAP TEST RESULTS SUMMARY Run 2-Total Vectren Corporation AB Brown Plant Unit 2 Stack February 24, 2010

Analytes Sample Catch

Platt Environmental Services, Inc. Template Rev. 2/17/09Concentration Emissions Blank

(ug)(ug-Blank) (ug/dcsm) (ug/dscm @ 7%O2) (lbs/mmBtu) (ug) Chlorobenzene 0.01 0.01 4.62E-01 0.41 3.83E-07 0.00 1,4-Dichlorobenzene 0.02 0.02 9.25E-01 0.83 7.66E-07 0.00 Iodomethane 0.02 0.02 9.25E-01 0.83 7.66E-07 0.00 cis-1,2-Dichloroethylene 0.01 0.01 4.62E-01 0.41 3.83E-07 0.00 1,1,1-Trichloroethane 0.01 0.01 4.62E-01 0.41 3.83E-07 0.00 1,2-Dichloroethane 0.007 0.01 3.24E-01 0.29 2.68E-07 0.00 1,2-Dichloropropane 0.01 0.01 4.62E-01 0.41 3.83E-07 0.00 Vinyl Chlorine 0.01 0.01 4.62E-01 0.41 3.83E-07 0.00 trans-1,3-Dichloropropane 0.007 0.01 3.24E-01 0.29 2.68E-07 0.00 Tetrachloroethylene 0.02 0.02 9.25E-01 0.83 7.66E-07 0.00 Bromoform 0.01 0.01 4.62E-01 0.41 3.83E-07 0.00 Dichlorodifluoromethane (FREON 12) 0.02 0.02 9.25E-01 0.83 7.66E-07 0.00

Chloroethane 0.009 0.01 4.16E-01 0.37 3.44E-07 0.00 1,1-Dichloroethylene 0.01 0.01 4.62E-01 0.41 3.83E-07 0.00 trans-1,2-Dichloroethylene 0.01 0.01 4.62E-01 0.41 3.83E-07 0.00 m / p-Xylene 0.02 0.02 9.25E-01 0.83 7.66E-07 0.00 Toluene 0.04 0.02 9.25E-01 0.83 7.66E-07 0.02 0-Xylene 0.02 0.02 9.25E-01 0.83 7.66E-07 0.00 Acetone (2-Propanone) 0.05 0.05 2.31E+00 2.07 1.91E-06 0.00 Carbon Disulfide 2.55 2.55 1.18E+02 105.73 9.76E-05 0.00 Dibromomethane 0.01 0.01 4.62E-01 0.41 3.83E-07 0.00 Methyl Isobutyl Ketone 0.02 0.02 9.25E-01 0.83 7.66E-07 0.00 Ethylene Dibromide 0.01 0.01 4.62E-01 0.41 3.83E-07 0.00 1,3-Dichlorobenzene 0.02 0.02 9.25E-01 0.83 7.66E-07 0.00 1,2-Dichlorobenzene 0.02 0.02 9.25E-01 0.83 7.66E-07 0.00 Chloromethane 0.08 0.08 3.70E+00 3.32 3.06E-06 0.00 Chloroform 0.01 0.01 4.62E-01 0.41 3.83E-07 0.00 Carbon Tetrachloride 0.02 0.02 9.25E-01 0.83 7.66E-07 0.00 Trichloroethylene 0.01 0.01 4.62E-01 0.41 3.83E-07 0.00 Bromodichloromethane 0.01 0.01 4.62E-01 0.41 3.83E-07 0.00 cis-1,3-Dichloropropene 0.01 0.01 4.62E-01 0.41 3.83E-07 0.00 1,1,2-Trichloroethane 0.02 0.02 9.25E-01 0.83 7.66E-07 0.00 Dibromochloromethane 0.009 0.01 4.16E-01 0.37 3.44E-07 0.00 1,1,2,2-Tetrachloroethane 0.01 0.01 4.62E-01 0.41 3.83E-07 0.00 Bromomethane 0.15 0.15 6.94E+00 6.22 5.74E-06 0.00 Trichlorofluoromethane (FREON 11) 0.01 0.01 4.62E-01 0.41 3.83E-07 0.00 Methylene Chloride (Dichloromethane) 0.42 0.25 1.16E+01 10.37 9.57E-06 0.17 1,1,-Dichloroethane 0.01 0.01 4.62E-01 0.41 3.83E-07 0.00 Benzene 0.016 0.02 7.40E-01 0.66 6.12E-07 0.00 Ethylbenzene 0.01 0.01 4.62E-01 0.41 3.83E-07 0.00 Styrene 0.01 0.01 4.62E-01 0.41 3.83E-07 0.00 1,1,1,2-Tetrachloroethane 0.01 0.01 4.62E-01 0.41 3.83E-07 0.00 1,2,3-Trichloropropane 0.02 0.02 9.25E-01 0.83 7.66E-07 0.00 Methyl Butyl Ketone (2-Hexanone) 0.03 0.03 1.39E+00 1.24 1.15E-06 0.00 Methyl Ethyl Ketone (2-Butanone) 0.04 0.04 1.85E+00 1.66 1.53E-06 0.00 Total Volatile Organic HAP 3.66 169.13 151.67 1.40E-04

Sample volume (Vmstd, liters) 21.63 Average % CO2by volume, dry 13.20 Average % O2by volume, dry 5.40 SPECIATED VOLATILE ORGANIC HAP TEST RESULTS SUMMARY Run 3-Trap Set 1 Vectren Corporation AB Brown Plant Unit 2 Stack February 24, 2010

Analytes Sample Catch

Platt Environmental Services, Inc. Template Rev. 2/17/09Concentration Emissions Blank
(ug)(ug-Blank) (ug/dcsm) (ug/dscm @ 7%O2) (lbs/mmBtu) (ug) Chlorobenzene 0.01 0.01 4.62E-01 0.41 3.82E-07 0.00 1,4-Dichlorobenzene 0.02 0.02 9.23E-01 0.83 7.65E-07 0.00 Iodomethane 0.02 0.02 9.23E-01 0.83 7.65E-07 0.00 cis-1,2-Dichloroethylene 0.01 0.01 4.62E-01 0.41 3.82E-07 0.00 1,1,1-Trichloroethane 0.01 0.01 4.62E-01 0.41 3.82E-07 0.00 1,2-Dichloroethane 0.007 0.01 3.23E-01 0.29 2.68E-07 0.00 1,2-Dichloropropane 0.01 0.01 4.62E-01 0.41 3.82E-07 0.00 Vinyl Chlorine 0.01 0.01 4.62E-01 0.41 3.82E-07 0.00 trans-1,3-Dichloropropane 0.007 0.01 3.23E-01 0.29 2.68E-07 0.00 Tetrachloroethylene 0.02 0.02 9.23E-01 0.83 7.65E-07 0.00 Bromoform 0.01 0.01 4.62E-01 0.41 3.82E-07 0.00 Dichlorodifluoromethane (FREON 12) 0.02 0.02 9.23E-01 0.83 7.65E-07 0.00

Chloroethane 0.009 0.01 4.16E-01 0.37 3.44E-07 0.00 1,1-Dichloroethylene 0.01 0.01 4.62E-01 0.41 3.82E-07 0.00 trans-1,2-Dichloroethylene 0.01 0.01 4.62E-01 0.41 3.82E-07 0.00 m / p-Xylene 0.02 0.02 9.23E-01 0.83 7.65E-07 0.00 Toluene 0.03 0.02 9.23E-01 0.83 7.65E-07 0.01 0-Xylene 0.02 0.02 9.23E-01 0.83 7.65E-07 0.00 Acetone (2-Propanone) 0.05 0.05 2.31E+00 2.07 1.91E-06 0.00 Carbon Disulfide 2.49 2.49 1.15E+02 103.11 9.52E-05 0.00 Dibromomethane 0.01 0.01 4.62E-01 0.41 3.82E-07 0.00 Methyl Isobutyl Ketone 0.02 0.02 9.23E-01 0.83 7.65E-07 0.00 Ethylene Dibromide 0.01 0.01 4.62E-01 0.41 3.82E-07 0.00 1,3-Dichlorobenzene 0.02 0.02 9.23E-01 0.83 7.65E-07 0.00 1,2-Dichlorobenzene 0.02 0.02 9.23E-01 0.83 7.65E-07 0.00 Chloromethane 0.02 0.02 9.23E-01 0.83 7.65E-07 0.00 Chloroform 0.01 0.01 4.62E-01 0.41 3.82E-07 0.00 Carbon Tetrachloride 0.02 0.02 9.23E-01 0.83 7.65E-07 0.00 Trichloroethylene 0.01 0.01 4.62E-01 0.41 3.82E-07 0.00 Bromodichloromethane 0.01 0.01 4.62E-01 0.41 3.82E-07 0.00 cis-1,3-Dichloropropene 0.01 0.01 4.62E-01 0.41 3.82E-07 0.00 1,1,2-Trichloroethane 0.02 0.02 9.23E-01 0.83 7.65E-07 0.00 Dibromochloromethane 0.009 0.01 4.16E-01 0.37 3.44E-07 0.00 1,1,2,2-Tetrachloroethane 0.01 0.01 4.62E-01 0.41 3.82E-07 0.00 Bromomethane 0.05 0.05 2.31E+00 2.07 1.91E-06 0.00 Trichlorofluoromethane (FREON 11) 0.01 0.01 4.62E-01 0.41 3.82E-07 0.00 Methylene Chloride (Dichloromethane) 0.09 0.02 9.23E-01 0.83 7.65E-07 0.07 1,1,-Dichloroethane 0.01 0.01 4.62E-01 0.41 3.82E-07 0.00 Benzene 0.015 0.02 6.93E-01 0.62 5.73E-07 0.00 Ethylbenzene 0.01 0.01 4.62E-01 0.41 3.82E-07 0.00 Styrene 0.01 0.01 4.62E-01 0.41 3.82E-07 0.00 1,1,1,2-Tetrachloroethane 0.01 0.01 4.62E-01 0.41 3.82E-07 0.00 1,2,3-Trichloropropane 0.02 0.02 9.23E-01 0.83 7.65E-07 0.00 Methyl Butyl Ketone (2-Hexanone) 0.03 0.03 1.39E+00 1.24 1.15E-06 0.00 Methyl Ethyl Ketone (2-Butanone) 0.04 0.04 1.85E+00 1.66 1.53E-06 0.00 Total Volatile Organic HAP 3.21 148.08 132.79 1.23E-04 Sample volume (Vmstd, liters) 21.66 Average % CO2by volume, dry 13.20 Average % O2by volume, dry 5.40

Analytes Sample Catch

SPECIATED VOLATILE ORGANIC HAP TEST RESULTS SUMMARY Run 3-Trap Set 2 Vectren Corporation AB Brown Plant Unit 2 Stack February 24, 2010

Platt Environmental Services, Inc. Template Rev. 2/17/09Concentration Emissions Blank

(ug)(ug-Blank) (ug/dcsm) (ug/dscm @ 7%O2) (lbs/mmBtu)(ug) Chlorobenzene 0.01 0.01 4.60E-01 0.41 3.81E-07 0.00 1,4-Dichlorobenzene 0.02 0.02 9.20E-01 0.82 7.61E-07 0.00 Iodomethane 0.02 0.02 9.20E-01 0.82 7.61E-07 0.00 cis-1,2-Dichloroethylene 0.01 0.01 4.60E-01 0.41 3.81E-07 0.00 1,1,1-Trichloroethane 0.01 0.01 4.60E-01 0.41 3.81E-07 0.00 1,2-Dichloroethane 0.007 0.01 3.22E-01 0.29 2.67E-07 0.00 1,2-Dichloropropane 0.01 0.01 4.60E-01 0.41 3.81E-07 0.00 Vinyl Chlorine 0.01 0.01 4.60E-01 0.41 3.81E-07 0.00 trans-1,3-Dichloropropane 0.007 0.01 3.22E-01 0.29 2.67E-07 0.00 Tetrachloroethylene 0.02 0.02 9.20E-01 0.82 7.61E-07 0.00 Bromoform 0.01 0.01 4.60E-01 0.41 3.81E-07 0.00 Dichlorodifluoromethane (FREON 12) 0.02 0.02 9.20E-01 0.82 7.61E-07 0.00

Chloroethane 0.009 0.01 4.14E-01 0.37 3.43E-07 0.00 1,1-Dichloroethylene 0.01 0.01 4.60E-01 0.41 3.81E-07 0.00 trans-1,2-Dichloroethylene 0.01 0.01 4.60E-01 0.41 3.81E-07 0.00 m / p-Xylene 0.02 0.02 9.20E-01 0.82 7.61E-07 0.00 Toluene 0.09 0.03 1.38E+00 1.24 1.14E-06 0.06 0-Xylene 0.02 0.02 9.20E-01 0.82 7.61E-07 0.00 Acetone (2-Propanone) 0.06 0.06 2.76E+00 2.47 2.28E-06 0.00 Carbon Disulfide 1.96 1.96 9.01E+01 80.84 7.46E-05 0.00 Dibromomethane 0.01 0.01 4.60E-01 0.41 3.81E-07 0.00 Methyl Isobutyl Ketone 0.02 0.02 9.20E-01 0.82 7.61E-07 0.00 Ethylene Dibromide 0.01 0.01 4.60E-01 0.41 3.81E-07 0.00 1,3-Dichlorobenzene 0.02 0.02 9.20E-01 0.82 7.61E-07 0.00 1,2-Dichlorobenzene 0.02 0.02 9.20E-01 0.82 7.61E-07 0.00 Chloromethane 0.05 0.05 2.30E+00 2.06 1.90E-06 0.00 Chloroform 0.01 0.01 4.60E-01 0.41 3.81E-07 0.00 Carbon Tetrachloride 0.02 0.02 9.20E-01 0.82 7.61E-07 0.00 Trichloroethylene 0.01 0.01 4.60E-01 0.41 3.81E-07 0.00 Bromodichloromethane 0.01 0.01 4.60E-01 0.41 3.81E-07 0.00 cis-1,3-Dichloropropene 0.01 0.01 4.60E-01 0.41 3.81E-07 0.00 1,1,2-Trichloroethane 0.02 0.02 9.20E-01 0.82 7.61E-07 0.00 Dibromochloromethane 0.009 0.01 4.14E-01 0.37 3.43E-07 0.00 1,1,2,2-Tetrachloroethane 0.01 0.01 4.60E-01 0.41 3.81E-07 0.00 Bromomethane 0.03 0.03 1.38E+00 1.24 1.14E-06 0.00 Trichlorofluoromethane (FREON 11) 0.01 0.01 4.60E-01 0.41 3.81E-07 0.00 Methylene Chloride (Dichloromethane) 0.13 0.02 9.20E-01 0.82 7.61E-07 0.11

1,1,-Dichloroethane 0.01 0.01 4.60E-01 0.41 3.81E-07 0.00 Benzene 0.013 0.01 5.98E-01 0.54 4.95E-07 0.00 Ethylbenzene 0.01 0.01 4.60E-01 0.41 3.81E-07 0.00 Styrene 0.01 0.01 4.60E-01 0.41 3.81E-07 0.00 1,1,1,2-Tetrachloroethane 0.01 0.01 4.60E-01 0.41 3.81E-07 0.00 1,2,3-Trichloropropane 0.02 0.02 9.20E-01 0.82 7.61E-07 0.00 Methyl Butyl Ketone (2-Hexanone) 0.03 0.03 1.38E+00 1.24 1.14E-06 0.00 Methyl Ethyl Ketone (2-Butanone) 0.04 0.04 1.84E+00 1.65 1.52E-06 0.00 Total Volatile Organic HAP 2.71 124.41 111.56 1.03E-04

Sample volume (Vmstd, liters) 21.74 Average % CO2by volume, dry 13.20 Average % O2by volume, dry 5.40 Run 3-Trap Set 3

Analytes Sample Catch

SPECIATED VOLATILE ORGANIC HAP TEST RESULTS SUMMARY
Vectren Corporation AB Brown Plant Unit 2 Stack February 24, 2010

Platt Environmental Services, Inc. Template Rev. 2/17/09Concentration Emissions Blank
(ug)(ug-Blank) (ug/dcsm) (ug/dscm @ 7%O2) (lbs/mmBtu)(ug) Chlorobenzene 0.01 0.01 4.58E-01 0.41 3.79E-07 0.00 1,4-Dichlorobenzene 0.02 0.02 9.17E-01 0.82 7.59E-07 0.00 Iodomethane 0.02 0.02 9.17E-01 0.82 7.59E-07 0.00 cis-1,2-Dichloroethylene 0.01 0.01 4.58E-01 0.41 3.79E-07 0.00 1,1,1-Trichloroethane 0.01 0.01 4.58E-01 0.41 3.79E-07 0.00 1,2-Dichloroethane 0.007 0.01 3.21E-01 0.29 2.66E-07 0.00 1,2-Dichloropropane 0.01 0.01 4.58E-01 0.41 3.79E-07 0.00 Vinyl Chlorine 0.01 0.01 4.58E-01 0.41 3.79E-07 0.00 trans-1,3-Dichloropropane 0.007 0.01 3.21E-01 0.29 2.66E-07 0.00 Tetrachloroethylene 0.02 0.02 9.17E-01 0.82 7.59E-07 0.00 Bromoform 0.01 0.01 4.58E-01 0.41 3.79E-07 0.00 Dichlorodifluoromethane (FREON 12) 0.02 0.02 9.17E-01 0.82 7.59E-07 0.00

Chloroethane 0.009 0.01 4.12E-01 0.37 3.41E-07 0.00 1,1-Dichloroethylene 0.01 0.01 4.58E-01 0.41 3.79E-07 0.00 trans-1,2-Dichloroethylene 0.01 0.01 4.58E-01 0.41 3.79E-07 0.00 m / p-Xylene 0.02 0.02 9.17E-01 0.82 7.59E-07 0.00 Toluene 0.23 0.17 7.79E+00 6.99 6.45E-06 0.06 0-Xylene 0.02 0.02 9.17E-01 0.82 7.59E-07 0.00 Acetone (2-Propanone) 0.06 0.06 2.75E+00 2.47 2.28E-06 0.00 Carbon Disulfide 1.65 1.65 7.56E+01 67.81 6.26E-05 0.00 Dibromomethane 0.01 0.01 4.58E-01 0.41 3.79E-07 0.00 Methyl Isobutyl Ketone 0.02 0.02 9.17E-01 0.82 7.59E-07 0.00 Ethylene Dibromide 0.01 0.01 4.58E-01 0.41 3.79E-07 0.00 1,3-Dichlorobenzene 0.02 0.02 9.17E-01 0.82 7.59E-07 0.00 1,2-Dichlorobenzene 0.02 0.02 9.17E-01 0.82 7.59E-07 0.00 Chloromethane 0.10 0.10 4.58E+00 4.11 3.79E-06 0.00 Chloroform 0.01 0.01 4.58E-01 0.41 3.79E-07 0.00 Carbon Tetrachloride 0.02 0.02 9.17E-01 0.82 7.59E-07 0.00 Trichloroethylene 0.01 0.01 4.58E-01 0.41 3.79E-07 0.00 Bromodichloromethane 0.01 0.01 4.58E-01 0.41 3.79E-07 0.00 cis-1,3-Dichloropropene 0.01 0.01 4.58E-01 0.41 3.79E-07 0.00 1,1,2-Trichloroethane 0.02 0.02 9.17E-01 0.82 7.59E-07 0.00 Dibromochloromethane 0.009 0.01 4.12E-01 0.37 3.41E-07 0.00 1,1,2,2-Tetrachloroethane 0.01 0.01 4.58E-01 0.41 3.79E-07 0.00 Bromomethane 0.20 0.20 9.17E+00 8.22 7.59E-06 0.00 Trichlorofluoromethane (FREON 11) 0.01 0.01 4.58E-01 0.41 3.79E-07 0.00 Methylene Chloride (Dichloromethane) 0.38 0.21 9.62E+00 8.63 7.97E-06 0.17

1,1,-Dichloroethane 0.01 0.01 4.58E-01 0.41 3.79E-07 0.00 Benzene 0.013 0.01 5.96E-01 0.53 4.93E-07 0.00 Ethylbenzene 0.01 0.01 4.58E-01 0.41 3.79E-07 0.00 Styrene 0.01 0.01 4.58E-01 0.41 3.79E-07 0.00 1,1,1,2-Tetrachloroethane 0.01 0.01 4.58E-01 0.41 3.79E-07 0.00 1,2,3-Trichloropropane 0.02 0.02 9.17E-01 0.82 7.59E-07 0.00 Methyl Butyl Ketone (2-Hexanone) 0.03 0.03 1.37E+00 1.23 1.14E-06 0.00 Methyl Ethyl Ketone (2-Butanone) 0.04 0.04 1.83E+00 1.64 1.52E-06 0.00 Total Volatile Organic HAP 2.95 134.97 121.04 1.12E-04 Sample volume (Vmstd, liters) 21.82 Average % CO2by volume, dry 13.20 Average % O2by volume, dry 5.40

Analytes Sample Catch

SPECIATED VOLATILE ORGANIC HAP TEST RESULTS SUMMARY Run 3-Trap Set 4 Vectren Corporation AB Brown Plant Unit 2 Stack February 24, 2010

Platt Environmental Services, Inc. Template Rev. 2/17/09Concentration Emissions Blank

(ug)(ug-Blank)(ug/dcsm)(ug/dscm @ 7%O2)(lbs/mmBtu)(ug) Chlorobenzene 0.40 0.40 4.61E+00 4.13 3.81E-060.00 1,4-Dichlorobenzene 0.40 0.40 4.61E+00 4.13 3.81E-060.00 Iodomethane 0.48 0.48 5.53E+00 4.96 4.58E-060.00 cis-1,2-Dichloroethylene 0.80 0.80 9.21E+00 8.26 7.63E-060.00 1,1,1-Trichloroethane 0.40 0.40 4.61E+00 4.13 3.81E-060.00 1,2-Dichloroethane 0.40 0.40 4.61E+00 4.13 3.81E-060.00 1,2-Dichloropropane 0.40 0.40 4.61E+00 4.13 3.81E-060.00 Vinyl Chlorine 0.32 0.32 3.68E+00 3.30 3.05E-060.00 trans-1,3-Dichloropropane 0.48 0.48 5.53E+00 4.96 4.58E-060.00 Tetrachloroethylene 0.40 0.40 4.61E+00 4.13 3.81E-060.00 Bromoform 0.32 0.32 3.68E+00 3.30 3.05E-060.00 Dichlorodifluoromethane (FREON 12) 0.80 0.80 9.21E+00 8.26 7.63E-060.00

Chloroethane 0.80 0.80 9.21E+00 8.26 7.63E-060.00 1,1-Dichloroethylene 0.80 0.80 9.21E+00 8.26 7.63E-060.00 trans-1,2-Dichloroethylene 0.80 0.80 9.21E+00 8.26 7.63E-060.00 m / p-Xylene 0.40 0.40 4.61E+00 4.13 3.81E-060.00 Toluene 0.40 0.40 4.61E+00 4.13 3.81E-060.00 0-Xylene 0.40 0.40 4.61E+00 4.13 3.81E-060.00 Acetone (2-Propanone) 25.60 25.60 2.95E+02 264.34 2.44E-040.00 Carbon Disulfide 0.40 0.40 4.61E+00 4.13 3.81E-060.00 Dibromomethane 0.40 0.40 4.61E+00 4.13 3.81E-060.00 Methyl Isobutyl Ketone 4.00 4.00 4.61E+01 41.30 3.81E-05 0.00 Ethylene Dibromide 0.40 0.40 4.61E+00 4.13 3.81E-060.00 1,3-Dichlorobenzene 0.40 0.40 4.61E+00 4.13 3.81E-060.00 1,2-Dichlorobenzene 0.40 0.40 4.61E+00 4.13 3.81E-060.00 Chloromethane 1.60 1.60 1.84E+01 16.52 1.53E-05 0.00 Chloroform 0.32 0.32 3.68E+00 3.30 3.05E-060.00 Carbon Tetrachloride 0.40 0.40 4.61E+00 4.13 3.81E-060.00 Trichloroethylene 0.40 0.40 4.61E+00 4.13 3.81E-060.00 Bromodichloromethane 0.32 0.32 3.68E+00 3.30 3.05E-060.00 cis-1,3-Dichloropropene 0.32 0.32 3.68E+00 3.30 3.05E-060.00 1,1,2-Trichloroethane 0.40 0.40 4.61E+00 4.13 3.81E-060.00 Dibromochloromethane 0.32 0.32 3.68E+00 3.30 3.05E-060.00 1,1,2,2-Tetrachloroethane 1.60 1.60 1.84E+01 16.52 1.53E-05 0.00 Bromomethane 2.40 2.40 2.76E+01 24.78 2.29E-05 0.00 Trichlorofluoromethane (FREON 11) 1.60 1.60 1.84E+01 16.52 1.53E-05 0.00 Methylene Chloride (Dichloromethane) 36.80 36.80 4.24E+02 379.98 3.51E-040.00

1,1,-Dichloroethane 0.32 0.32 3.68E+00 3.30 3.05E-060.00 Benzene 0.40 0.40 4.61E+00 4.13 3.81E-060.00 Ethylbenzene 0.40 0.40 4.61E+00 4.13 3.81E-060.00 Styrene 0.40 0.40 4.61E+00 4.13 3.81E-060.00 1,1,1,2-Tetrachloroethane 0.40 0.40 4.61E+00 4.13 3.81E-060.00 1,2,3-Trichloropropane 0.48 0.48 5.53E+00 4.96 4.58E-060.00 Methyl Butyl Ketone (2-Hexanone) 4.00 4.00 4.61E+01 41.30 3.81E-05 0.00 Methyl Ethyl Ketone (2-Butanone) 4.00 4.00 4.61E+01 41.30 3.81E-05 0.00 Total Volatile Organic HAP 97.68 1124.71 1008.61 9.31E-04

Sample volume (Vmstd, liters) 86.85 Average % CO2by volume, dry 13.20 Average % O2by volume, dry 5.40Run 3-Condensate

Analytes Sample Catch

SPECIATED VOLATILE ORGANIC HAP TEST RESULTS SUMMARY
Vectren Corporation AB Brown Plant Unit 2 Stack February 24, 2010

Platt Environmental Services, Inc. Template Rev. 2/17/09Platt Environmental Services, Inc. Template Rev. 2/17/09Concentration Emissions Blank

(ug)(ug-Blank) (ug/dcsm) (ug/dscm @ 7%O2) (lbs/mmBtu) (ug) Chlorobenzene 0.44 0.44 5.07E+00 4.54 4.19E-06 0.00 1,4-Dichlorobenzene 0.48 0.48 5.53E+00 4.96 4.58E-06 0.00 Iodomethane 0.56 0.56 6.45E+00 5.78 5.34E-06 0.00 cis-1,2-Dichloroethylene 0.84 0.84 9.67E+00 8.67 8.01E-06 0.00 1,1,1-Trichloroethane 0.44 0.44 5.07E+00 4.54 4.19E-06 0.00 1,2-Dichloroethane 0.43 0.43 4.93E+00 4.42 4.08E-06 0.00 1,2-Dichloropropane 0.44 0.44 5.07E+00 4.54 4.19E-06 0.00 Vinyl Chlorine 0.36 0.36 4.15E+00 3.72 3.43E-06 0.00 trans-1,3-Dichloropropane 0.51 0.51 5.85E+00 5.25 4.84E-06 0.00 Tetrachloroethylene 0.48 0.48 5.53E+00 4.96 4.58E-06 0.00 Bromoform 0.36 0.36 4.15E+00 3.72 3.43E-06 0.00 Dichlorodifluoromethane (FREON 12) 0.88 0.88 1.01E+01 9.09 8.39E-06 0.00

Chloroethane 0.84 0.84 9.63E+00 8.63 7.97E-06 0.00 1,1-Dichloroethylene 0.84 0.84 9.67E+00 8.67 8.01E-06 0.00 trans-1,2-Dichloroethylene 0.84 0.84 9.67E+00 8.67 8.01E-06 0.00 m / p-Xylene 0.48 0.48 5.53E+00 4.96 4.58E-06 0.00 Toluene 0.79 0.64 7.37E+00 6.61 6.10E-06 0.15 0-Xylene 0.48 0.48 5.53E+00 4.96 4.58E-06 0.00 Acetone (2-Propanone) 25.82 25.82 2.97E+02 266.61 2.46E-04 0.00 Carbon Disulfide 9.05 9.05 1.04E+02 93.45 8.63E-05 0.00 Dibromomethane 0.44 0.44 5.07E+00 4.54 4.19E-06 0.00 Methyl Isobutyl Ketone 4.08 4.08 4.70E+01 42.13 3.89E-05 0.00 Ethylene Dibromide 0.44 0.44 5.07E+00 4.54 4.19E-06 0.00 1,3-Dichlorobenzene 0.48 0.48 5.53E+00 4.96 4.58E-06 0.00 1,2-Dichlorobenzene 0.48 0.48 5.53E+00 4.96 4.58E-06 0.00 Chloromethane 1.85 1.85 2.13E+01 19.10 1.76E-05 0.00 Chloroform 0.36 0.36 4.15E+00 3.72 3.43E-06 0.00 Carbon Tetrachloride 0.48 0.48 5.53E+00 4.96 4.58E-06 0.00 Trichloroethylene 0.44 0.44 5.07E+00 4.54 4.19E-06 0.00 Bromodichloromethane 0.36 0.36 4.15E+00 3.72 3.43E-06 0.00 cis-1,3-Dichloropropene 0.36 0.36 4.15E+00 3.72 3.43E-06 0.00 1,1,2-Trichloroethane 0.48 0.48 5.53E+00 4.96 4.58E-06 0.00 Dibromochloromethane 0.36 0.36 4.10E+00 3.68 3.39E-06 0.00 1,1,2,2-Tetrachloroethane 1.64 1.64 1.89E+01 16.93 1.56E-05 0.00 Bromomethane 2.83 2.83 3.26E+01 29.22 2.70E-05 0.00 Trichlorofluoromethane (FREON 11) 1.64 1.64 1.89E+01 16.93 1.56E-05 0.00 Methylene Chloride (Dichloromethane) 37.82 37.30 4.29E+02 385.15 3.56E-04 0.52 1,1,-Dichloroethane 0.36 0.36 4.15E+00 3.72 3.43E-06 0.00 Benzene 0.46 0.46 5.26E+00 4.72 4.36E-06 0.00 Ethylbenzene 0.44 0.44 5.07E+00 4.54 4.19E-06 0.00 Styrene 0.44 0.44 5.07E+00 4.54 4.19E-06 0.00 1,1,1,2-Tetrachloroethane 0.44 0.44 5.07E+00 4.54 4.19E-06 0.00 1,2,3-Trichloropropane 0.56 0.56 6.45E+00 5.78 5.34E-06 0.00 Methyl Butyl Ketone (2-Hexanone) 4.12 4.12 4.74E+01 42.54 3.93E-05 0.00 Methyl Ethyl Ketone (2-Butanone) 4.16 4.16 4.79E+01 42.95 3.97E-05 0.00 Total Volatile Organic HAP 110.20 1268.81 1137.83 1.05E-03

Sample volume (Vmstd, liters) 86.85 Average % CO2by volume, dry 13.20 Average % O2by volume, dry 5.40 Sample Catch SPECIATED VOLATILE ORGANIC HAP TEST RESULTS SUMMARY Run 3-Total Vectren Corporation AB Brown Plant Unit 2 Stack February 24, 2010

Analytes

Platt Environmental Services, Inc. Template Rev. 2/17/09Concentration Emissions Blank

(ug)(ug-Blank) (ug/dcsm) (ug/dscm @ 7%O2) (lbs/mmBtu) (ug) Chlorobenzene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,4-Dichlorobenzene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Iodomethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 cis-1,2-Dichloroethylene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,1,1-Trichloroethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,2-Dichloroethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,2-Dichloropropane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Vinyl Chlorine 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 trans-1,3-Dichloropropane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Tetrachloroethylene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Bromoform 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Dichlorodifluoromethane (FREON 12) 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00

Chloroethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,1-Dichloroethylene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 trans-1,2-Dichloroethylene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 m / p-Xylene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Toluene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 0-Xylene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Acetone (2-Propanone) 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Carbon Disulfide 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Dibromomethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Methyl Isobutyl Ketone 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Ethylene Dibromide 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,3-Dichlorobenzene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,2-Dichlorobenzene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Chloromethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Chloroform 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Carbon Tetrachloride 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Trichloroethylene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Bromodichloromethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 cis-1,3-Dichloropropene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,1,2-Trichloroethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Dibromochloromethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,1,2,2-Tetrachloroethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Bromomethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Trichlorofluoromethane (FREON 11) 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Methylene Chloride (Dichloromethane) 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00

1,1,-Dichloroethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Benzene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Ethylbenzene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Styrene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,1,1,2-Tetrachloroethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,2,3-Trichloropropane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 +Vinyl Acetate 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Methyl Butyl Ketone (2-Hexanone) 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Methyl Ethyl Ketone (2-Butanone) 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Total Volatile Organic HAP 0.00 #DIV/0! #DIV/0! 0.00

Sample volume (Vmstd, liters) #DIV/0! Average % CO2by volume, dry 0.00 Average % O2by volume, dry 0.00 Sample Catch SPECIATED VOLATILE ORGANIC HAP TEST RESULTS SUMMARY Run 4-Trap Set 1 Vectren Corporation AB Brown Plant Unit 2 Stack February 24, 2010

Analytes

Platt Environmental Services, Inc. Template Rev. 2/17/09Concentration Emissions Blank

(ug)(ug-Blank) (ug/dcsm) (ug/dscm @ 7%O2) (lbs/mmBtu) (ug) Chlorobenzene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,4-Dichlorobenzene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Iodomethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 cis-1,2-Dichloroethylene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,1,1-Trichloroethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,2-Dichloroethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,2-Dichloropropane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Vinyl Chlorine 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 trans-1,3-Dichloropropane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Tetrachloroethylene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Bromoform 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Dichlorodifluoromethane (FREON 12) 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00

Chloroethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,1-Dichloroethylene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 trans-1,2-Dichloroethylene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 m / p-Xylene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Toluene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 0-Xylene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Acetone (2-Propanone) 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Carbon Disulfide 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Dibromomethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Methyl Isobutyl Ketone 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Ethylene Dibromide 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,3-Dichlorobenzene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,2-Dichlorobenzene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Chloromethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Chloroform 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Carbon Tetrachloride 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Trichloroethylene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Bromodichloromethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 cis-1,3-Dichloropropene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,1,2-Trichloroethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Dibromochloromethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,1,2,2-Tetrachloroethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Bromomethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Trichlorofluoromethane (FREON 11) 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Methylene Chloride (Dichloromethane) 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00

1,1,-Dichloroethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Benzene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Ethylbenzene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Styrene 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,1,1,2-Tetrachloroethane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 1,2,3-Trichloropropane 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 +Vinyl Acetate 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Methyl Butyl Ketone (2-Hexanone) 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Methyl Ethyl Ketone (2-Butanone) 0.00 0.00 #DIV/0! #DIV/0! 0.00E+00 0.00 Total Volatile Organic HAP 0.00 #DIV/0! #DIV/0! 0.00

Sample volume (Vmstd, liters) #DIV/0! Average % CO2by volume, dry 0.00 Average % O2by volume, dry 0.00 SPECIATED VOLATILE ORGANIC HAP TEST RESULTS SUMMARY Run 4-Total Vectren Corporation AB Brown Plant Unit 2 Stack February 24, 2010

Analytes Sample Catch

Platt Environmental Services, Inc. Template Rev. 2/17/09

# Company:Vectren Corporation Plant:ABBrown Plant Location: Test Method:

Test 1 Test 2 Test 3 % Hydrogen 4.47% Hydrogen 4.88% Hydrogen 4.91 % Carbon 66.81% Carbon 70.75% Carbon 72.12 % Sulfur 2.62% Sulfur 2.56% Sulfur 2.49 % Nitrogen 1.47% Nitrogen 1.52% Nitrogen 1.54 % Oxygen 7.62% Oxygen 8.50% Oxygen 8.21 HHV (Btu/lb) 11984HHV (Btu/lb) 12766HHV (Btu/lb) 12819
Fd(dscf/MMBtu)=9736.66 Fd(dscf/MMBtu)=9695.50Fd(dscf/MMBtu)=9834.96 Fc(scf/MMBtu)=1789.55 Fc(scf/MMBtu)=1779.00 Fc(scf/MMBtu)=1805.95

AVERAGE FUEL FACTORS Fd(dscf/MMBtu)=9755.70 Fc(scf/MMBtu)=1791.50 Unit 2 Stack 0031

ICR M23 2/2/10

### Company: Plant: Location: Test Method:Vectren Corporation

AB Brown Plant Unit 2 Stack 0031 Run Time (min):Vm (dscf):Tm (oR):Pbar ("Hg):DHavg ("H2O):Md:Orifice DH@I:Meter Yi:Yqa: Calibration Status:



## #REF! Test Run 112021.76475.5029.28#REF!30.292#REF!1.0050#REF! Test Run 2#REF!#REF!#REF!#REF!#REF!#REF!#REF!1.0050#REF! Test Run 3#REF!#REF!#REF!#REF!#REF!#REF!#REF!1.0050#REF! Test Run 4#REF!#REF!#REF!#REF!#REF! 1.0050#REF! 

## #REF!

ICR M23 2/2/10Company: Plant: Test Location: Run: 1 Date: 2/24/2010 Dry Molecular Weight
Md =0.44 x (%CO2) + 0.32 x (%O2) + 0.28 x %N2 %CO2=12.9 %O2=5.7 %N2=81.4

Md =30.29

Wet Molecular Weight

Ms =Md x (1-Bws) + (18.0 x Bws)

Md =30.29 Bws =0.000

Ms =0.00
Meter Volume at Standard Conditions

Vm(std) =17.647 x Y x Vm x(Pbar +DH/13.6) Tm

Y =1.005 Vm =19.923 Pbar =29.28 DH =#REF! Tm =475.5 Vm(std) =21.758 Volume of Water Vapor Condensed

Vw(std) =0.0471 x(net H2O gain)

Net H2O =#REF! Vw(std) =#REF!
Moisture Content

Bws =

Vw(std) =#REF!Vm(std) =21.758

Bws =0.000

Average Duct Velocity

Vs =85.49 x Cp x Sqrt DP (avg) x (Ts (avg)/ (Ps x Ms))1/2
Cp =#REF!Ts (avg) =587.9Sqrt DP (avg):#REF! Ps =0.00 Ms =0.00

Vs =0.00

Volumetric Flow Rate (Actual Basis)
Q =Vs x A x 60

Vs =0.00 A =207.394
Q =0 Volumetric Flow Rate (Standard Basis)
Qstd =17.647 x Q x Ps

Ts (avg)
Q =0 Ps =0.00 Ts (avg) =587.9
Qstd =0 Volumetric Flow Rate (Standard Dry Basis)

Qstd(dry) =Qstd x (1-Bws)
Qstd = 0Bws =0.000 Qstd(dry) = 0

Isokinetic Variation:
%ISO =

Ts =587.9Vm(std) =21.758 Vs =0.000 An =#REF! θ =120.0 Ps =0.00 Bws =0.000
%ISO =#REF! Vectren Corporation AB Brown Plant

Vs x θ x An x Ps x (1-Bws) Unit 2 Stack

Vwc(std)

Vwc(std) + Vm(std)

0.0945 x Ts x Vm(std)

ICR M23 2/2/100 0 10.0398 20.0417 30.0441 40.0463 50.0489 60.0517 70.0541 80.0571 90.0598 100.0631 11 0.066 120.0696 130.0728 140.0768 150.081 160.0846 170.0892 180.0932 190.0982 200.1025 21 0.108 220.1127 230.1186 240.1248 250.1302 260.137 270.1429 280.1502 290.1567 300.1647 310.1716 320.1803 330.1878 340.1955 350.2035 360.2118 370.2203 380.2292 390.2383 400.2478 410.2576 420.2677 430.2782 440.2891 450.3004 460.312 470.324 480.3364 490.3493 500.3626 510.3764 520.3906 530.4052 540.4203 550.4359 560.452 570.4686 580.4858 590.5035 600.5218 610.5407 620.5601 630.5802 640.6009 650.6222 660.6442 670.6669 680.6903 690.7144 700.7392 710.7648 720.7912 730.8183 740.8462 750.875 760.9046 770.9352 780.9666 790.9989 80 1.032 81 1.066 82 1.102 83 1.138 84 1.175 85 1.213 86 1.253 87 1.293 88 1.335 89 1.378 90 1.422 91 1.467 92 1.513 93 1.561 94 1.61 95 1.66 96 1.712 97 1.765 98 1.819 99 1.875 100 1.932 101 1.992 1022.052 1032.114 1042.178 1052.243 106 2.31 1072.379 1082.449 1092.521 1102.596 111 2.672 1122.749 1132.829 1142.911 1152.995 1163.081 1173.169 1183.259 1193.351 1203.446 121 3.543 1223.642 123 3.744 1243.848 125 3.954 1264.063 1274.174 1284.289 1294.406 1304.525 131 4.647 1324.772 133 4.9 1345.031 135 5.165 1365.302 1375.442 1385.585 1395.732 1405.881 141 6.034 142 6.19 143 6.35 1446.513 145 6.68 146 6.85 1477.024 1487.202 1497.384 1507.569 151 7.759 1527.952 153 8.15 1548.351 155 8.557 1568.767 1578.981 158 9.2 1599.424 1609.652 161 9.885 162 10.12 163 10.36 164 10.61 165 10.86 166 11.12 167 11.38 168 11.65 169 11.92 170 12.2 171 12.48 172 12.77 173 13.07 174 13.37 175 13.67 176 13.98 177 14.3 178 14.62 179 14.96 180 15.29 181 15.63 182 15.98 183 16.34 184 16.7 185 17.07 186 17.44 187 17.82 188 18.21 189 18.61 190 19.01 191 19.42 192 19.84 19320.27 194 20.7 19521.14 19621.59 19722.05 19822.52 19922.99 20023.47

ICR M23 2/2/10