| Case Number | Case Title | Open Date | Closed Date |
| 08-1233-WS-UNC | IN THE MATTER OF THE COMPLIANCE OF OHIO AMERICAN WATER COMPANY WITH THE STIPULATION APPROVED IN CASE NO 07-1112-WS-AIR
| 11/17/2008 | |
| 09-1842-WS-UNC | WATER AND SEWER LLC | 11/23/2009 | |
| 10-2672-WS-UNC | OHIO AMERICAN WATER COMPANY | 11/16/2010 | |
| 11-3859-WS-UNC | CORDELL REGIONAL UTILITIES INC | 06/23/2011 | |
| 19-1610-WS-UNC | In the Matter of the Application of Aqua Ohio, Inc. to Purchase the Assets and Properties of the City of Campbell | 08/21/2019 | |
| 22-0330-WS-UNC | WATER AND SEWER LLC | 04/05/2022 | |