| Company | Location | Certifications | License # |
|---|---|---|---|
| Lauritsen Septic & Drain, LLC | Montevideo, MN | Pumper | L4340 |
| Wilke Environmental & Logistics LLC | Bellingham, MN | DesignerInspector | L2306 |
| Wollschlager Excavating and Septic, LLC | Madison, MN | Installer | L3998 |
3 companies in the Minnesota MPCA SSTS licensed business registry are based in Lac qui Parle County as of 2026-07-23. Companies based elsewhere in Minnesota also commonly serve the county.
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