| Company | Location | Certifications | License # |
|---|---|---|---|
| Hartley Groundwork And Clearing | Latta, SC | Installer (Tier 1) | OSWWI0433 |
| Johnson'S Backhoe Service Inc | Dillon, SC | Installer (Tier 2) | 17-367-17007 |
| L & A Services Llc | Lake View, SC | Installer (Tier 2) | 17-367-17026 |
| Lju Properties, Llc | Lake View, SC | Installer (Tier 2) | OSWWI0090 |
| Moody Farms | Lake View, SC | Installer (Tier 2) | 17-367-17020 |
5 companies in the SCDES on-site wastewater (OSWW) contractor registry are based in Dillon County as of 2026-07-23. Companies based elsewhere in South Carolina also commonly serve the county.
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