| Case Number | Case Title | Open Date | Closed Date |
| 89-7001-WW-TRF | ARROWHEAD HILLS UTILITIES CORP. | 07/18/1989 | 08/06/1992 |
| 89-7002-WW-TRF | BRIMFIELD WATER COMPANY | 08/01/1989 | 11/20/1990 |
| 89-7008-WW-TRF | COUNTRY CLUB UTILITIES, INC. | 08/15/1989 | 09/30/1998 |
| 89-7011-WW-TRF | GEM BEACH MARINA, INC. | 10/04/1989 | 06/01/1999 |
| 89-7012-WW-TRF | HOLIDAY SERVICE CORP. | 08/30/1989 | 09/22/2008 |
| 89-7013-WW-TRF | IMPERIAL WATER COMPANY, INC. | 09/12/1989 | 07/08/1993 |
| 89-7015-WW-TRF | LAKE WHITE WATER WORKS | 08/24/1989 | 01/03/2003 |
| 89-7019-WW-TRF | MADISON WATER WORKS, INC. | 08/24/1989 | 01/03/2003 |
| 89-7023-WW-TRF | NORLICK PLACE WATER CO. | 09/24/1989 | 02/08/2005 |
| 89-7024-WW-TRF | NORTON UTILITIES, INC. | 11/08/1989 | 01/01/2004 |
| 89-7031-WW-TRF | SENECA UTILITIES, INC. | 09/19/1989 | 05/04/2005 |
| 89-7034-WW-TRF | SHEPARD HILLS WATER COMPANY | 11/08/1989 | 01/03/2003 |
| 89-7037-WW-TRF | VALLEY UTILITY COMPANY | 10/31/1989 | 01/03/2003 |
| 89-7038-WW-TRF | VALLEY WATERWORKS, INC. | 11/02/1989 | 01/03/2003 |
| 89-7040-WW-TRF | WESTERN OHIO UTILITY CO., INC. | 11/15/1989 | 09/25/1997 |
| 89-7044-WW-TRF | ROCKWOOD PARK WATER SUPPLY | 06/14/1991 | 01/03/2003 |
| 89-7048-WW-TRF | CONSUMERS APPLEGROVE WATER COMPANY | 12/30/1989 | 09/24/2003 |