| Case Number | Case Title | Open Date | Closed Date |
| 01-0034-WW-UNC | OHIO AMERICAN WATER CO. | 01/03/2001 | |
| 01-0048-WW-PWA | CITIZEN UTILITIES OF OHIO | 01/07/2001 | 04/12/2001 |
| 01-0049-WW-AAC | CITIZEN UTILITIES OF OHIO | 01/07/2001 | |
| 01-0626-WW-AIR | OHIO AMERICAN WATER COMPANY | 03/15/2001 | 02/06/2002 |
| 01-1037-WW-AIS | MOHAWK UTILITIES, INC. | 04/30/2001 | 05/31/2001 |
| 01-1696-WW-AIS | CONSUMERS OHIO WATER COMPANY | 06/29/2001 | |
| 01-1766-WW-UNC | CONSUMERS OHIO WATER & MASURY WATER COMPANY | 07/12/2001 | |
| 01-1767-WW-UNC | CONSUMERS OHIO WATER & MASURY WATER COMPANY | 07/12/2001 | |
| 01-2454-WW-AAC | OHIO AMERICAN WATER COMPANY | 09/17/2001 | |
| 01-2458-WW-AIR | MOHAWK UTILITIES, INC | 09/20/2001 | 07/18/2002 |
| 01-2466-WW-ACE | MOHAWK UTILITIES, INC | 09/20/2001 | 06/15/2004 |
| 01-2924-WW-AIR | CONSUMERS OHIO WATER COMPANY | 11/09/2001 | 11/07/2002 |
| 01-3133-WW-PWA | CITIZENS UTILITY COMPANY | 12/04/2001 | 02/06/2002 |
| 01-3220-WW-UNC | AMERICAN WATER WORKS COMPANY, INC./THAMES WATER AQUA HOLDING GmbH | 12/13/2001 | |