| Process Step | Date Initiated | Date Completed | Comments |
| Final Order Issued | 4/17/2003 | 6/11/2003 |
|
| Received | 4/17/2003 | 4/17/2003 |
|
| Instream Comment Period | 4/22/2003 | 4/22/2003 |
|
| WMR Request | 6/10/2003 | 6/10/2003 |
|
| Received | 8/16/2007 | 8/16/2007 |
IL-109 reassigned to IL-593
|
| Final Order Issued | 8/16/2007 | 3/25/2008 |
|
| WMR Request | 8/17/2007 | 8/21/2007 |
|
| Instream Comment Period | 8/21/2007 | 8/21/2007 |
|