| Company | Location | Certifications | License # |
|---|---|---|---|
| C&C Excavation, Inc. | — | Pumper | S-968 |
| Havre Sand & Gravel Inc | — | Pumper | S-799 |
| Hi Line Septic Service | — | Pumper | S-1208 |
| T.P. Construction, Inc. | — | Pumper | S-590 |
4 companies in the Montana DEQ licensed septic pumpers list are based in Hill County as of 2026-07-23. Companies based elsewhere in Montana also commonly serve the county.
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