Sub-locations
| Name | Sites | Samples |
|---|---|---|
| Union County | 1 | 5 |
| Wake County | 1 | 2 |
| Washington County | 1 | 19 |
| Watauga County | 5 | 23 |
| Wilson County | 3 | 22 |
| Yadkin County | 2 | 7 |
| Name | Sites | Samples |
|---|---|---|
| Union County | 1 | 5 |
| Wake County | 1 | 2 |
| Washington County | 1 | 19 |
| Watauga County | 5 | 23 |
| Wilson County | 3 | 22 |
| Yadkin County | 2 | 7 |