| Case Number | Case Title | Open Date | Closed Date |
| 97-0479-WW-UNC | CONSUMERS OHIO WATER/VILLAGE-PERRY | 04/30/1997 | 09/04/1997 |
| 97-0516-WW-AAC | CONSUMERS OHIO WATER/LAKE ERIE DIVN | 05/07/1997 | 11/24/1998 |
| 97-0922-WW-ATA | OHIO-AMERICAN WATER COMPANY | 08/26/1997 | 12/18/1997 |
| 97-1544-WW-AIR | MASURY WATER COMPANY | 11/24/1997 | 11/05/1998 |
| 97-1603-WW-AAC | OHIO-AMERICAN WATER COMPANY | 12/05/1997 | 10/22/1998 |