| Company | Location | Certifications | License # |
|---|---|---|---|
| Beaver Creek Maintenance Llc | Johnston, SC | Installer (Tier 2) | 19-367-19032 |
| Carolina Septic | North Augusta, SC | Pumper | 19-368-19003 |
| Freeman Septic Tank | North Augusta, SC | Installer (Tier 2) | 19-367-19003 |
| Jackson Construction | North Augusta, SC | Installer (Tier 2) | 19-367-19015 |
| Liberty South Contracting Llc | North Augusta, SC | Installer (Tier 2) | OSWWI0392 |
| Pioneer Clearing | North Augusta, SC | Installer (Tier 2) | 19-367-19030 |
6 companies in the SCDES on-site wastewater (OSWW) contractor registry are based in Edgefield County as of 2026-07-23. Companies based elsewhere in South Carolina also commonly serve the county.
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