| Company | Location | Certifications | License # |
|---|---|---|---|
| Ballast Point Marine | Yemassee, SC | Installer (Tier 2) | OSWWI0631 |
| Bunton Septic & Grading, Llc | Ridgeland, SC | Installer (Tier 2) | 27-367-27041 |
| Cleland Site Prep, Llc | Bluffton, SC | Installer (Tier 2) | 07-367-07112 |
| Coastal Septic Solutions | Hardeeville, SC | Installer (Tier 2) | OSWWI0642 |
| Coastal Waste & Recycling | Ridgeland, SC | Pumper | OSWWP0057 |
| Degler Waste Services | Ridgeland, SC | Installer (Tier 2) | 27-367-27042 |
| Degler Waste Services | Ridgeland, SC | Pumper | 27-368-27007 |
| Dl Sewer Service | Ridgeland, SC | Pumper | 27-368-27013 |
| Fireline Septic Services Llc | Hardeeville, SC | Pumper | OSWWP0077 |
| Jarrell Construction | Early Branch, SC | Installer (Tier 2) | 27-367-27054 |
| Joseph Ferguson | Hardeeville, SC | Installer (Tier 2) | 27-367-27051 |
| Lowcountry Septic Tank Svc | Ridgeland, SC | Installer (Tier 2) | 27-367-27038 |
| Lucia E Walling | Ridgeland, SC | Installer (Tier 2) | 27-367-27055 |
| Mando Construction Llc | Hardeeville, SC | Installer (Tier 2) | OSWWI0555 |
| Septic Core & Land Clearing Llc | Hardeeville, SC | Installer (Tier 2) | OSWWI0205 |
| Tillotson Utility Services | Ridgeland, SC | Installer (Tier 2) | OSWWI0241 |
16 companies in the SCDES on-site wastewater (OSWW) contractor registry are based in Jasper County as of 2026-07-23. Companies based elsewhere in South Carolina also commonly serve the county.
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