| Company | Location | Certifications | License # |
|---|---|---|---|
| Area Services | Overton, NE | InspectorInstallerPumper | 401609 |
| Jones Plumbing & Heating Inc | Lexington, NE | Installer | 407386 |
| Kirk's Trenching & Septic Serv | Cozad, NE | InspectorInstallerPumper | 407347 |
3 companies in the Nebraska DEE onsite wastewater (OWT) certified business registry are based in Dawson County as of 2026-07-23. Companies based elsewhere in Nebraska also commonly serve the county.
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