### Date

**Start End**  **Tested** Field Dry 3-Jan 7-Jan 10-Jan 14-Jan 17-Jan 21-Jan 24-Jan 28-Jan



### Jan Avg **#DIV/0! #DIV/0!** 

31-Jan 4-Feb 7-Feb 11-Feb 14-Feb 18-Feb 21-Feb 25-Feb



### Feb Avg **#DIV/0! #DIV/0!** 

28-Feb 4-Mar 7-Mar 11-Mar 14-Mar 18-Mar 21-Mar 25-Mar 28-Mar 1-Apr



### Mar Avg **#DIV/0! #DIV/0!** 
4-Apr 8-Apr 11-Apr 15-Apr 18-Apr 22-Apr 25-Apr 29-Apr



### Apr Avg **#DIV/0! #DIV/0!** 
2-May 6-May 9-May 13-May 16-May 20-May 23-May 27-May



### May Avg **#DIV/0! #DIV/0!** 
30-May 3-Jun 6-Jun 10-Jun 13-Jun 17-Jun 20-Jun 24-Jun 27-Jun 1-Jul



### Jun Avg **#DIV/0! #DIV/0!** 

4-Jul 8-Jul 11-Jul 15-Jul 18-Jul 22-Jul 25-Jul 29-Jul



### Jul Avg **#DIV/0! #DIV/0!**  **2011 Weekly %** **Sulfur**1-Aug 5-Aug

8-Aug 12-Aug 15-Aug 19-Aug 22-Aug 26-Aug 29-Aug 2-Sep 09/07/11 

### 2.052.09

**Aug Avg 2.05** **2.09**
5-Sep 9-Sep 09/13/11 

### 1.89 1.93 12-Sep 16-Sep 09/22/11 

### 1.74 1.78 19-Sep 23-Sep 09/26/11 

### 1.64 1.67 26-Sep 30-Sep 10/07/11 

### 1.43 1.45

**Sep Avg 1.68**  **1.71**

3-Oct 7-Oct 10/11/11 

### 1.42 1.45 10-Oct 14-Oct 10/19/11 

### 1.49 1.52 17-Oct 21-Oct 24-Oct 28-Oct



### Oct Avg **1.45 1.48** 

31-Oct 4-Nov 7-Nov 11-Nov 14-Nov 18-Nov 21-Nov 25-Nov 28-Nov 2-Dec



### Nov Avg **#DIV/0! #DIV/0!** 

5-Dec 9-Dec 12-Dec 16-Dec 19-Dec 23-Dec 26-Dec 30-Dec



### Dec Avg **#DIV/0! #DIV/0!**  Not Running Coal Not Running Coal Not Running Coal Not Running Coal Not Running Coal Not Running Coal Not Running Coal

Not Running Coal Not Running Coal Not Running Coal

Not Running Coal

### Date

**Start End**  **Tested** Field Dry 3-Jan 7-Jan 01/10/11 3.27 3.33 10-Jan 14-Jan 01/20/11 3.07 3.13 17-Jan 21-Jan 01/24/11 3.01 3.06 24-Jan 28-Jan 02/01/11 2.50 2.54



### Jan Avg **2.86 2.91** 

31-Jan 4-Feb 02/09/11 2.25 2.29 7-Feb 11-Feb 02/16/11 2.56 2.61 14-Feb 18-Feb 21-Feb 25-Feb 03/02/11 2.47 2.51



### Feb Avg **2.43 2.47** 

28-Feb 4-Mar 03/07/11 2.67 2.71 7-Mar 11-Mar 03/16/11 2.46 2.49 14-Mar 18-Mar 21-Mar 25-Mar 28-Mar 1-Apr



### Mar Avg **2.57 2.60** 
4-Apr 8-Apr 04/21/11 

### 2.41 2.44 11-Apr 15-Apr 18-Apr 22-Apr 04/27/11 

### 2.392.43 25-Apr 29-Apr 05/03/11 

### 2.582.61

**Apr Avg 2.46** **2.49**
2-May 6-May 05/10/11 

### 2.282.32 9-May 13-May 05/20/11 

### 1.71 1.74 16-May 20-May 05/24/11 

### 1.71 1.73 23-May 27-May 06/02/11 

### 1.73 1.76

**May Avg 1.86**  **1.89**
30-May 3-Jun 06/06/11 

### 1.86 1.89 6-Jun 10-Jun 06/14/11 

### 1.60 1.63 13-Jun 17-Jun 06/20/11 

### 1.58 1.60 20-Jun 24-Jun 06/28/11 

### 1.89 1.92 27-Jun 1-Jul 07/06/11 

### 1.92 1.95

**Jun Avg 1.77**  **1.80**

4-Jul 8-Jul 07/15/11 

### 2.022.06 11-Jul 15-Jul 07/19/11 

### 2.092.13 18-Jul 22-Jul 07/26/11 

### 2.122.17 25-Jul 29-Jul 08/02/11 

### 2.11 2.15

**Jul Avg 2.09** **2.13** Line 2 Down

Line 2 Down Line 2 Down 

### 2011 Weekly **% Sulfur** 

Line 2 Down

Line 2 Down1-Aug 5-Aug 08/08/11 

### 1.982.03

8-Aug 12-Aug 08/16/11 

### 1.94 1.98 15-Aug 19-Aug 08/23/11 

### 2.01 2.05 22-Aug 26-Aug 08/30/11 

### 2.102.15 29-Aug 2-Sep 09/07/11 

### 2.062.10

**Aug Avg 2.02** **2.06**
5-Sep 9-Sep 09/13/11 

### 1.84 1.87 12-Sep 16-Sep 09/22/11 

### 1.81 1.85 19-Sep 23-Sep 09/26/11 

### 1.66 1.68 26-Sep 30-Sep 10/07/11 

### 1.49 1.51

**Sep Avg 1.70**  **1.73**

3-Oct 7-Oct 10/11/11 

### 1.48 1.50 10-Oct 14-Oct 10/19/11 

### 1.46 1.49 17-Oct 21-Oct 10/25/11 

### 1.50 1.53 24-Oct 28-Oct 11/01/11 

### 1.33 1.35

**Oct Avg 1.44**  **1.47**

31-Oct 4-Nov 11/08/11 

### 1.51 1.54 7-Nov 11-Nov 14-Nov 18-Nov 11/22/11 

### 1.53 1.57 21-Nov 25-Nov 11/29/11 

### 1.46 1.49 28-Nov 2-Dec 12/06/11 

### 1.42 1.45

**Nov Avg 1.48**  **1.51**

5-Dec 9-Dec 12/12/11 

### 1.42 1.44 12-Dec 16-Dec 19-Dec 23-Dec 12/28/11 

### 1.48 1.51 26-Dec 30-Dec 01/03/12 

### 1.63 1.66

**Dec Avg 1.51**  **1.54** Line 2 Down

Line 2 Down

### Date

**Start End**  **Tested** Field Dry 4-Jan 8-Jan 01/11/10 3.59 3.62 11-Jan 15-Jan 01/19/10 3.53 3.58 18-Jan 22-Jan 01/25/10 3.64 3.68 25-Jan 29-Jan 02/02/10 3.62 3.66



### Jan Avg **3.59 3.64** 

1-Feb 5-Feb 02/08/10 3.35 3.41 8-Feb 12-Feb 02/15/10 3.33 3.37 15-Feb 19-Feb 02/22/10 2.83 2.86 22-Feb 26-Feb 03/01/10 2.95 3.00



### Feb Avg **3.11 3.16** 

1-Mar 5-Mar 03/08/10 3.21 3.26 8-Mar 12-Mar 03/16/10 2.96 3.00 15-Mar 19-Mar 03/22/10 3.04 3.10 22-Mar 26-Mar 03/31/10 2.95 3.00 29-Mar 2-Apr 04/08/10 2.93 2.98



### Mar Avg **3.02 3.07** 
5-Apr 9-Apr 12-Apr 16-Apr 19-Apr 23-Apr 26-Apr 30-Apr



### Apr Avg **#DIV/0! #DIV/0!** 
3-May 7-May 05/10/10 

### 3.293.35 10-May 14-May 05/19/10 

### 3.183.22 17-May 21-May 05/25/10 

### 3.56 3.60 24-May 28-May 06/01/10 

### 3.453.50 31-May 4-Jun 06/07/10 

### 3.153.21

**May Avg 3.33** **3.37**

7-Jun 11-Jun 06/15/10 

### 2.97 3.01 14-Jun 18-Jun 06/22/10 

### 2.822.87 21-Jun 25-Jun 06/28/10 

### 3.52 3.57 28-Jun 2-Jul 07/07/10 

### 3.393.43

**Jun Avg 3.18** **3.22**

5-Jul 9-Jul 07/12/10 

### 3.43 3.48 12-Jul 16-Jul 07/19/10 

### 3.63 3.70 19-Jul 23-Jul 08/09/10 

### 3.80 3.86 19-Jul 23-Jul 08/06/10 

### 3.683.75 26-Jul 30-Jul



### Jul Avg **3.63 3.70**  **2010 Weekly %** **Sulfur**

Plant Shut Down 4/4 - 4/29 Plant Shut Down 4/4 - 4/29 Plant Shut Down 4/4 - 4/29 Plant Shut Down 4/4 - 4/29

Coal Mill Down 7/23 - 8/52-Aug 6-Aug 08/11/10 

### 3.53 3.66

2-Aug 6-Aug 08/18/10 

### 3.53 3.55 9-Aug 13-Aug 16-Aug 20-Aug 23-Aug 27-Aug 30-Aug 3-Sep



### Aug Avg **3.53 3.60** 
6-Sep 10-Sep 13-Sep 17-Sep 20-Sep 24-Sep 27-Sep 1-Oct



### Sep Avg **#DIV/0! #DIV/0!** 

4-Oct 8-Oct 11-Oct 15-Oct 18-Oct 22-Oct 25-Oct 29-Oct



### Oct Avg **#DIV/0! #DIV/0!** 

1-Nov 5-Nov 11/15/10 

### 3.22 3.27 8-Nov 12-Nov 11/15/10 

### 3.483.52 15-Nov 19-Nov 11/24/10 

### 3.22 3.27 22-Nov 26-Nov 12/03/10 

### 3.07 3.10 29-Nov 3-Dec 12/06/10 

### 3.53 3.58

**Nov Avg 3.30** **3.35**

6-Dec 10-Dec 12/14/10 

### 3.50 3.55 13-Dec 17-Dec 12/27/10 

### 3.353.40 20-Dec 24-Dec 01/04/11 

### 3.24 3.29 27-Dec 31-Dec 01/05/10 

### 3.27 3.32

**Dec Avg 3.34** **3.39** Coal Mill Down Coal Mill Down Coal Mill Down Coal Mill Down

Coal Mill Down Coal Mill Down Coal Mill Down Coal Mill Down

Coal Mill Down Coal Mill Down Coal Mill Down Coal Mill Down

### Date

**Start End**  **Tested** Field Dry 5-Jan 9-Jan 01/13/09 3.42 3.50 12-Jan 16-Jan 01/26/09 3.22 3.26 19-Jan 23-Jan 01/28/09 3.29 3.32 26-Jan 30-Jan 02/10/09 2.99 3.04



### Jan Avg **3.17 3.21** 

2-Feb 6-Feb 02/16/09 3.24 3.27 9-Feb 13-Feb 02/20/09 3.24 3.29 16-Feb 20-Feb 23-Feb 27-Feb



### Feb Avg **3.24 3.28** 

2-Mar 6-Mar 9-Mar 13-Mar 03/17/09 3.52 3.55 16-Mar20-Mar (Lerch/SGS Avg.) 03/26/09 3.45 3.49 23-Mar27-Mar (Lerch/SGS Avg.) 03/31/09 3.62 3.66 30-Mar 3-Apr Lerch 04/07/09 3.03 3.07



### Mar Avg **3.41 3.44** 
6-Apr 10-Apr (SGS) 04/14/09 2.74 2.78 13-Apr 17-Apr (SGS) 04/21/09 3.00 3.05 20-Apr 24-Apr 04/28/09 3.30 3.35 27-Apr 30-Apr (SGS) 05/06/09 3.38 3.42



### Apr Avg **3.11 3.15** 
4-May 8-May 11-May 15-May 18-May 22-May 25-May 29-May



### May Avg **#DIV/0! #DIV/0!** 

1-Jun 5-Jun 8-Jun 12-Jun 17-Jun 19-Jun (TPT/SGS Avg) 06/22/09 3.53 3.58 22-Jun 26-Jun (TPT/SGS Avg) 06/29/09 3.57 3.62 29-Jun 3-Jul (TPT/SGS Avg) 07/08/09 3.41 3.46



### Jun Avg **3.50 3.55** 

Coal mill down for repairs - no solid fuel utilized

Plant shutdown May 1 - June 15 Plant shutdown May 1 - June 15 Plant shutdown May 1 - June 15 Plant shutdown May 1 - June 15

Plant shutdown May 1 - June 15 Coal mill down for repairs - no solid fuel utilized 

### 2009 Weekly **% Sulfur** 

Coal mill down for repairs - no solid fuel utilized

Plant shutdown May 1 - June 15

### Date

**Start End**  **Tested** Field Dry 7-Jan 11-Jan 01/17/08 3.59 3.62 14-Jan 18-Jan 01/25/08 3.27 3.29 21-Jan 25-Jan 01/31/08 3.53 3.57 28-Jan 1-Feb 02/07/08 3.27 3.32



### Jan Avg **3.36 3.39** 

4-Feb 8-Feb 02/20/08 3.19 3.22 11-Feb 15-Feb 02/20/08 3.36 3.39 18-Feb 22-Feb 02/29/08 3.48 3.51 25-Feb 28-Feb**Line 2 Down - Major Repair - No Coal**



### Feb Avg **3.34 3.37** 

3-Mar 7-Mar**Line 2 Down - Major Repair - No Coal** 10-Mar 14-Mar 03/24/08 

### 3.36 3.42 17-Mar 21-Mar 03/25/08 

### 3.34 3.39 21-Mar 28-Mar 04/02/08 

### 3.44 3.47

**Mar Avg 3.38** **3.43**

31-Mar 4-Apr 04/09/08 

### 2.942.97 7-Apr 11-Apr 04/18/08 

### 3.34 3.38 14-Apr 18-Apr 04/23/08 

### 3.30 3.34 21-Apr 25-Apr 05/02/08 

### 3.183.23 28-Apr 2-May 05/09/08 

### 3.133.17

**Apr Avg 3.19** **3.22**
5-May 9-May 05/14/08 

### 3.46 3.49 12-May 16-May 05/21/08 

### 3.653.68 12-May 16-May re-run 

### 3.64 3.67 19-May 23-May 05/30/08 

### 3.41 3.43 26-May 30-May 06/05/08 

### 3.42 3.45

**May Avg 3.52**  **3.54**

2-Jun 6-Jun 06/16/08 

### 3.26 3.32 9-Jun 13-Jun 06/19/08 

### 3.383.41 16-Jun 20-Jun 06/25/08 

### 3.22 3.26 23-Jun 27-Jun 07/01/08 

### 3.44 3.48 30-Jun 3-Jul 07/14/08 

### 3.14 3.16

**Jun Avg 3.33** **3.33**

7-Jul 11-Jul 07/16/08 

### 2.742.77 14-Jul 18-Jul 07/23/08 

### 2.622.65 21-Jul 25-Jul 08/04/08 

### 3.01 3.03 28-Jul 1-Aug 08/08/08 

### 3.31 3.34 **2008 Weekly %** **Sulfur**

### Jul Avg **2.92 2.95** 

4-Aug 8-Aug 08/19/08 

### 3.183.21 11-Aug 15-Aug 08/19/08 

### 3.393.43 18-Aug 22-Aug 25-Aug 29-Aug 09/05/08 

### 2.973.01

**Aug Avg 3.18** **3.22**
1-Sep 5-Sep 09/12/08 

### 2.762.79 8-Sep 12-Sep 09/18/08 

### 2.993.03 15-Sep 19-Sep 09/29/08 

### 3.233.25 22-Sep 26-Sep 10/07/08 

### 3.173.20
29-Sep 3-Oct



### Sep Avg **3.04 3.07** 

6-Oct 10-Oct 10/17/08 

### 3.273.30 13-Oct 17-Oct 10/23/08 

### 3.12 3.15 20-Oct 24-Oct 10/31/08 

### 3.31 3.34 27-Oct 31-Oct 11/10/08 

### 3.733.75 27-Oct 31-Oct 1/12 - rerun 

### 3.653.68

**Oct Avg 3.36** **3.39**

3-Nov 7-Nov 11/14/08 

### 3.54 3.57 10-Nov 14-Nov 11/26/08 

### 3.70 3.73 10-Nov 14-Nov 1/12 - rerun 

### 3.71 3.74 17-Nov 21-Nov 12/03/08 

### 3.473.51 24-Nov 28-Nov 12/09/08 

### 3.50 3.53

**Nov Avg 3.55** **3.59**

1-Dec 5-Dec 12/09/08 

### 3.493.53

8-Dec 12-Dec 15-Dec 19-Dec 12/29/08 

### 3.673.69 15-Dec 19-Dec 1/12 - rerun 

### 3.71 3.74 22-Dec 26-Dec 01/07/09 

### 3.62 3.66 22-Dec 26-Dec 1/12 - rerun 

### 3.72 3.77 29-Dec 2-Jan 01/12/09 

### 3.54 3.56

**Dec Avg 3.58** **3.61**

**Line 2 Furnace down for brick repair on 12/2 @4:20 through 12/15**  **Line 2 Furnace down from 8/18 - 8/22 for minor repair**

**Line 2 furnace on gas from 9/29 -10/3 due to repair of hole in cole pipe** 

### Date

**Start End**  **Tested** Field Dry

**Line 2 Down thru 2/12/07** 12-Feb 16-Feb 03/15/07 

### 3.74 3.78 19-Feb 23-Feb 03/15/07 

### 3.82 3.86 26-Feb 2-Mar 03/15/07 

### 3.383.41

**Feb Avg 3.65** **3.68**

5-Mar 9-Mar 03/09/07 

### 3.6 3.62 12-Mar 16-Mar 03/19/07 

### 3.04 3.07 19-Mar 23-Mar 03/23/07 

### 3.48 3.5 26-Mar 30-Mar 04/09/07 

### 3.14 3.17

**Mar Avg 3.32**  **3.34**
2-Apr 6-Apr 04/13/07 

### 2.792.82 9-Apr 13-Apr 04/24/07 

### 2.51 2.54 16-Apr 20-Apr 04/25/07 

### 3.553.59 23-Apr 27-Apr 05/02/07 

### 3.893.94

**Apr Avg 3.19** **3.22**
30-Apr 4-May 05/06/07 

### 3.71 3.75 7-May 11-May 05/23/07 

### 3.893.94 14-May 18-May 05/23/07 

### 4.05 4.1 21-May 25-May 06/01/07 

### 3.453.48 28-May 1-Jun 06/07/07 

### 3.783.82

**May Avg 3.78** **3.82**

4-Jun 8-Jun 06/15/07 

### 3.753.79 11-Jun 15-Jun 06/20/07 

### 3.50 3.53 18-Jun 22-Jun 06/25/07 

### 3.53 3.56 25-Jun 29-Jun 07/03/07 

### 3.24 3.27

**Jun Avg 3.51**  **3.54**

2-Jul 6-Jul 07/18/07 

### 3.67 3.71 9-Jul 13-Jul 07/18/07 

### 3.783.82 16-Jul 20-Jul 07/27/07 

### 3.553.58 23-Jul 27-Jul 08/02/07 

### 3.87 3.91

**Jul Avg 3.72**  **3.76**

30-Jul 3-Aug 08/09/07 

### 3.82 3.85 6-Aug 10-Aug 08/14/07 

### 4.31 4.35 13-Aug 17-Aug 08/22/07 

### 3.553.59 **Line 2 Down - Major - No Coal** 

### 2007 Weekly **% Sulfur** 

### Date

**Start End**  **Tested** Field Dry **2007 Weekly %** **Sulfur**

**Line 2 Down - Major - No Coal**



### Aug Avg **3.89 3.93** 
**Line 2 Down - Major - No Coal** 10-Sep 14-Sep 09/21/07 

### 3.53 3.58 17-Sep 21-Sep 09/27/07 

### 3.66 3.7 24-Sep 28-Sep 10/04/07 

### 3.353.39

**Sep Avg 3.51**  **3.56**

1-Oct 5-Oct 10/11/07 

### 3.193.22 8-Oct 12-Oct 10/17/07 

### 3.30 3.34 15-Oct 19-Oct 10/26/07 

### 3.64 3.69 22-Oct 26-Oct 11/02/07 

### 3.33 3.36 29-Oct 2-Nov 11/09/07 

### 3.46 3.49

**Oct Avg 3.38** **3.42**

5-Nov 9-Nov 12-Nov 16-Nov 11/19/07 

### 3.32 3.36 19-Nov 23-Nov 26-Nov 30-Nov 12/06/07 

### 3.03 3.06

**Nov Avg 3.18** **3.21**

3-Dec 7-Dec 12/14/07 

### 2.892.92 10-Dec 14-Dec 12/21/07 

### 3.44 3.46 17-Dec 21-Dec 12/28/07 

### 3.41 3.45 24-Dec 28-Dec 01/07/08 

### 3.42 3.45 31-Dec 4-Jan 01/09/08 

### 3.24 3.28

**Dec 3.29** **3.31**