| Case Number | Case Title | Open Date | Closed Date |
| 88-0169-WW-COI | SHAWNEE HILLS UTILITY COMPANY | 02/03/1988 | 08/16/1990 |
| 88-0215-WW-CMR | OHIO WATER SERVICE/STRUTHERS OHIO | 02/12/1988 | 03/08/1988 |
| 88-0270-WW-AIS | OHIO WATER SERVICE COMPANY | 02/16/1988 | 04/05/1988 |
| 88-0279-WW-AIR | ARROWHEAD HILLS UTILITIES CORP | 02/19/1988 | 12/20/1988 |
| 88-0304-WW-COI | IMPERIAL WATER COMPANY | 02/25/1988 | 06/14/1988 |
| 88-0379-WW-AAM | OHIO-AMERICAN WATER COMPANY | 03/11/1988 | |
| 88-0682-WW-CSS | PAUL WEBER V IMPERIAL WATER CO | 04/25/1988 | 07/20/1988 |
| 88-0721-WW-AIR | CHOCTAW UTILITIES, INC. | 05/04/1988 | 10/12/1988 |
| 88-0972-WW-UNC | WATER USAGE RESTRICTIONS | 06/28/1988 | 09/27/1988 |
| 88-0986-WW-AAC | OHIO-AMERICAN WATER COMPANY | 06/30/1988 | 11/08/1988 |
| 88-1264-WW-ATA | CHRISTI WATER SYSTEM, INC. | 08/24/1988 | 09/15/1988 |
| 88-1456-WW-CSS | J. BREDFELDT/OH SUBURBAN WATER CO | 10/05/1988 | 03/28/1989 |
| 88-1471-WW-CSS | MARC THOMPSON V OH SUBURBAN WATER | 10/07/1988 | 08/01/1989 |
| 88-1489-WW-PWA | CHRISTI WATER SYSTEM, INC. | 10/12/1988 | 10/28/1988 |
| 88-1673-WW-AIR | MARRK V WATER COMPANY | 11/14/1988 | 08/09/1989 |
| 88-1889-WW-ARJ | WALNUT CREEK WATER COMPANY | 12/12/1988 | 06/28/1989 |