| Business | Phone |
| Barnwell County Sanitary Lndfl 155 Landfill Rd, Barnwell 29812 | (803) 541-1109 |
| Barnwell County Solid Waste 1359 Seven Pines Rd, Barnwell 29812 | (803) 259-4583 |
| Barnwell County Solid Waste 1360 Orchard Rd, Barnwell 29812 | (803) 259-4581 |
| Barnwell County Solid Waste 153 Landfill Rd, Barnwell 29812 | (803) 259-4582 |
| Barnwell County Solid Waste 870 Reedy Branch Rd, Barnwell 29812 | (803) 259-4588 |
| Barnwell County Solid Waste Highway 3, Barnwell 29812 | (803) 259-4580 |