**Startup and Shutdown Information for Nitric A cid Plant** 

Shutdown is identified as gauze temperature below 1200 F. Startup is identified as FI1624 compressor flow >12000 scfm.

**Date Time**  **Shutdown Startup**  **Date Time**  **Shutdown Startup**  1/8/2006 19:35 X 1/12/2007 11:30X 1/9/2006 0:00 X 1/13/2007 9:00 X 1/11/2006 2:05 X 1/13/2007 9:05 X 1/11/2006 6:20 X 1/13/2007 9:15 X 1/14/2006 14:55 X 1/13/2007 9:45 X 1/15/2006 7:35 X 1/13/2007 10:55 X 1/27/2006 10:20X 1/13/2007 11:15 X 1/27/2006 13:40 X 1/13/2007 14:50 X 2/8/2006 5:00X 1/13/2007 19:10X 2/8/2006 5:05 X 1/13/2007 19:55 X 2/8/2006 9:10X 2/15/2007 7:35 X 2/8/2006 13:55 X 2/15/2007 10:50 X 2/13/2006 4:30X 2/19/2007 5:55 X 2/14/2006 6:35 X 2/21/2007 9:00 X 2/14/2006 17:10X 3/12/2007 2:30X 2/15/2006 6:05 X 3/18/2007 12:15 X 3/7/2006 2:05 X 3/20/2007 2:15 X 3/7/2006 2:15 X 3/20/2007 6:05 X 3/14/2006 10:15 X 3/20/2007 9:25 X 3/14/2006 23:35 X 3/20/2007 9:45 X 3/15/2006 10:00X 3/31/2007 13:40X 3/15/2006 10:50 X 4/1/2007 1:40 X 3/21/2006 3:55 X 4/1/2007 2:20X 3/23/2006 22:45 X 4/1/2007 4:15 X 3/25/2006 21:25 X 4/1/2007 7:40X 3/25/2006 22:35 X 4/8/2007 15:25 X 3/31/2006 22:40X 4/15/2007 5:30X 4/1/2006 3:40 X 4/16/2007 23:15 X 4/1/2006 17:20X 4/17/2007 0:05 X 4/1/2006 17:25 X 4/17/2007 2:40 X 4/2/2006 0:05 X 4/22/2007 13:05 X 4/2/2006 1:25 X 4/22/2007 21:30 X 4/3/2006 10:00X 4/24/2007 16:15 X 4/3/2006 23:05 X 4/24/2007 20:20 X 5/7/2006 0:50X 5/3/2007 21:20X 5/8/2006 3:50 X 5/4/2007 19:45 X 6/11/2006 18:55 X 5/10/2007 8:05 X 6/14/2006 9:35 X 5/10/2007 8:15 X 7/10/2006 9:05 X 5/10/2007 8:45 X 7/10/2006 12:35 X 5/10/2007 12:00 X 7/10/2006 14:50X 6/11/2007 0:20X7/10/2006 15:15 X 6/11/2007 2:05 X

7/17/2006 2:50X 6/11/2007 3:30X 8/5/2006 5:50 X 6/11/2007 23:30 X 8/5/2006 7:05 X 6/12/2007 0:00X 8/5/2006 7:15 X 6/12/2007 17:30 X 8/14/2006 2:50X 6/12/2007 18:30X 8/14/2006 5:50 X 6/21/2007 4:00 X 8/25/2006 19:45 X 6/21/2007 8:50X 8/26/2006 16:10 X 6/22/2007 0:25 X 8/30/2006 2:10X 7/1/2007 1:35 X 8/30/2006 4:45 X 7/15/2007 7:55 X 9/3/2006 14:20X 7/15/2007 13:50X 9/3/2006 22:00 X 7/15/2007 14:15 X 9/12/2006 7:55 X 7/16/2007 1:25 X 9/12/2006 14:40 X 7/16/2007 6:25 X 9/16/2006 17:55 X 7/23/2007 8:10X 9/16/2006 22:55 X 7/27/2007 11:25 X 9/21/2006 14:55 X 7/27/2007 18:20X 9/21/2006 17:25 X 7/27/2007 19:40 X 9/29/2006 15:30X 8/6/2007 14:05 X 9/29/2006 15:40 X 8/7/2007 19:20 X

######### 12:05 X 8/13/2007 0:30X

######### 22:15 X 8/13/2007 1:05 X

######### 15:30X 8/13/2007 2:35 X

######### 2:20 X 8/13/2007 16:50 X

######### 19:20X 8/25/2007 21:40X 12/3/2006 20:25 X 8/26/2007 9:25 X

######### 10:10X 8/27/2007 14:25 X

######### 16:55 X 8/30/2007 21:00 X

######### 19:55 X 9/6/2007 10:15 X

######### 1:00 X 9/7/2007 4:30 X

######### 7:25 X 10/3/2007 13:00X

######### 9:50 X 10/3/2007 21:30 X

######### 18:45 X

######### 5:35 X

######### 4:40X

######### 3:45 X

######### 18:45 X

######### 18:00 X 11/1/2007 19:25 X 11/3/2007 8:25 X 11/3/2007 19:10X 11/3/2007 23:45 X 11/5/2007 14:05 X 11/5/2007 18:35 X

######### 14:50X

######### 22:20 X12/4/2007 12:45 X 12/5/2007 9:15 X

######### 14:10X

######### 5:20 X

######### 11:30X

######### 13:40 X

######### 15:40X**Date Time**  **Shutdown Startup**  1/1/2008 0:50 X 1/17/2008 17:40X 1/18/2008 0:50 X 1/19/2008 23:30X 1/21/2008 7:25 X 1/29/2008 4:35 X 2/3/2008 16:10 X 2/20/2008 7:50X 2/25/2008 14:25 X 4/7/2008 12:20X 4/8/2008 0:20 X 4/15/2008 14:30X 4/15/2008 15:50 X 4/21/2008 7:55 X 4/21/2008 8:25 X 4/24/2008 1:15 X 4/25/2008 17:05 X 5/5/2008 11:50X 5/5/2008 17:40 X 5/7/2008 19:05 X 5/14/2008 14:45 X 5/25/2008 23:30X 5/26/2008 8:10 X 5/27/2008 11:05 X 5/28/2008 19:25 X 5/29/2008 22:45 X 6/5/2008 3:00 X 6/13/2008 2:10X 6/13/2008 23:30 X 6/19/2008 11:15 X 6/19/2008 14:40 X 6/28/2008 10:20X 6/29/2008 11:30 X 7/4/2008 11:55 X 7/4/2008 13:30 X 7/15/2008 7:25 X 7/15/2008 14:50 X 7/18/2008 4:00X 7/18/2008 6:00 X 7/18/2008 20:20X 7/18/2008 23:40 X7/25/2008 22:55 X

7/25/2008 23:05 X 7/29/2008 23:35 X 7/30/2008 23:40 X 8/9/2008 21:00X 8/10/2008 7:30 X 8/22/2008 7:20X 8/22/2008 14:55 X 8/28/2008 2:55 X 8/28/2008 3:55 X 8/29/2008 10:45 X 8/29/2008 18:30 X 9/1/2008 16:10X 9/1/2008 21:55 X 9/5/2008 4:40X 9/5/2008 13:05 X 9/7/2008 1:40X 9/7/2008 16:40 X 9/27/2008 2:30X 9/27/2008 15:20 X 10/5/2008 4:50X 10/5/2008 14:25 X 10/9/2008 5:05 X 10/9/2008 8:30 X

######### 18:35 X 11/3/2008 16:30 X 11/4/2008 8:54X 11/4/2008 7:10 X

######### 18:25 X

######### 22:50 X

######### 7:55 X

######### 15:20 X

######### 7:10X

######### 10:30 X

######### 18:55 X

######### 2:10 X

######### 9:35 X

######### 13:10 X