| Company | Location | Certifications | License # |
|---|---|---|---|
| Caleb Cronin | Wheeling, WV | Installer (Class II) | 54-26-A-003 |
| Craig Templin | Triadelphia, WV | Installer (Class II) | 54-95-A-0612 |
| John C. Clark | Triadelphia, WV | Installer (Class II) | 54-09-A-040 |
| Richard C. Link | Valley Grove, WV | Installer (Class I) | 54-99-0611 |
| Spencer Abraham | Triadelphia, WV | Installer (Class II) | 54-26-A-005 |
5 companies in the West Virginia OEHS certified onsite sewage system installers are based in Ohio County as of 2026-07-23. Companies based elsewhere in West Virginia also commonly serve the county.
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