| Case Number | Case Title | Open Date | Closed Date |
| 74-0563-WW-ATC | OHIO UTILITIES COMPANY | 08/26/1974 | 07/14/1975 |
| 76-0239-WW-ATC | BURR OAK SERVICE COMPANY | 03/16/1976 | 02/08/1978 |
| 76-0640-WW-ATC | ENGLISH, PHILIP H AND FARVER,AROLD | 08/13/1976 | 12/08/1976 |
| 79-1404-WW-ATC | LAKE WHITE WATER WORKS | 12/26/1979 | 09/24/1980 |
| 90-1370-WW-ATC | OHIO UTILITIES/BRIMFIELD WATER CO | 08/30/1990 | 11/20/1990 |
| 92-2171-WW-ATC | THOUSAND ADVENTURES/CAMPLANDS WATER | 11/25/1992 | 09/23/1993 |
| 95-0245-WW-ATC | GEM BEACH MARINA/GEM BEACH UTILITY | 03/01/1995 | 10/12/1995 |