Sub-locations
| Name | Sites | Samples |
|---|---|---|
| Addison County | 23 | 77 |
| Bennington County | 10 | 52 |
| Chittenden County | 31 | 76 |
| Essex County | 2 | 17 |
| Franklin County | 20 | 154 |
| Grand Isle County | 3 | 8 |
| Lamoille County | 2 | 9 |
| Orange County | 6 | 12 |
| Orleans County | 0 | 0 |
| Rutland County | 12 | 22 |
| Washington County | 1 | 2 |
| Windham County | 5 | 5 |
| Windsor County | 6 | 23 |