| Company | Location | Certifications | License # |
|---|---|---|---|
| Clearwater Excavating Inc. | Bagley, MN | Installer | L4236 |
| Solid Bottom | Bagley, MN | Pumper | L2809 |
| Thompson Gravel & Rock LLC | Bagley, MN | DesignerInstaller | L3668 |
| TS Excavating | Gonvick, MN | DesignerInspectorInstaller | L2150 |
4 companies in the Minnesota MPCA SSTS licensed business registry are based in Clearwater County as of 2026-07-23. Companies based elsewhere in Minnesota also commonly serve the county.
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