| Company | Location | Certifications | License # |
|---|---|---|---|
| A1 Solutions | Ramer, TN | Installer (Type C) | 12785 |
| D.K. MFG. & Construction | Michie, TN | Installer (Type C) | 846 |
| Dunaway Construction | Bethel Springs, TN | Installer (Type C) | 13214 |
| J Daren Smith | Stantonville, TN | Installer (Type C) | 882 |
| Jason King Backhoe And Dozer | Selmer, TN | Installer (Type C) | 8033 |
| Jerry Gibbs Backhoe & Dozer | Adamsville, TN | Installer (Type C) | 10076 |
| Randy Qualls Backhoe Service | Stantonville, TN | Installer (Type C) | 8018 |
7 companies in the TDEC active septic system installers & pumpers lists are based in Mcnairy County as of 2026-07-23. Companies based elsewhere in Tennessee also commonly serve the county.
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