Sub-locations
| Name | Sites | Samples |
|---|---|---|
| Haywood County | 1 | 15 |
| Hertford County | 2 | 4 |
| Hoke County | 2 | 3 |
| Hyde County | 1 | 5 |
| Jackson County | 4 | 6 |
| Jones County | 1 | 5 |
| Lenoir County | 1 | 1 |
| Macon County | 3 | 19 |
| McDowell County | 2 | 7 |
| Montgomery County | 1 | 9 |
| Moore County | 1 | 3 |
| Nash County | 1 | 3 |
| New Hanover County | 5 | 8 |
| Onslow County | 13 | 53 |
| Orange County | 4 | 6 |
| Pitt County | 1 | 9 |
| Randolph County | 1 | 1 |
| Richmond County | 1 | 3 |
| Robeson County | 1 | 1 |
| Rockingham County | 2 | 4 |
| Stanly County | 1 | 1 |
| Stokes County | 3 | 3 |
| Surry County | 1 | 6 |
| Swain County | 1 | 2 |
| Transylvania County | 1 | 1 |