| Company | Location | Certifications | License # |
|---|---|---|---|
| Brown Construction | Waverly, TN | Installer (Type C) | 12289 |
| Brown Contracting | Waverly, TN | Installer (Type C) | 12967 |
| Cb Services | Waverly, TN | Installer (Type C) | 11665 |
| Eaton Underground Utilities, Llc | Mcewen, TN | Installer (Type C) | 14295 |
| himes plumbing | New Johnsonville, TN, TN | Installer (Type C) | 5057 |
| Spears Services | Mcewen, TN | Installer (Type C) | 14203 |
| Wilson Forestry & Excavation, LLC | Waverly, TN | Installer (Type C) | 14224 |
7 companies in the TDEC active septic system installers & pumpers lists are based in Humphreys County as of 2026-07-23. Companies based elsewhere in Tennessee also commonly serve the county.
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