| Case Number | Case Title | Open Date | Closed Date |
| 87-0173-WS-ORD | RULEMAKING PROCEEDING 4901:1-15-02 | 02/02/1987 | 02/10/1987 |
| 87-0495-WS-ABN | CINNAMON LAKE UTILITY COMPANY | 03/24/1987 | 09/23/1987 |
| 87-0672-WS-ATA | OHIO SUBURBAN WATER COMPANY | 04/29/1987 | 05/24/1988 |
| 87-0688-WS-CSS | WM. & J. BODOH V LAKE ERIE UTILS CO | 05/01/1987 | 08/02/1988 |