Locations
| Name | Sites | Samples |
|---|---|---|
| Dutchess County | 5 | 20 |
| Duval County | 32 | 90 |
| Early County | 3 | 28 |
| East Baton Rouge Parish | 6 | 14 |
| East Carroll Parish | 2 | 22 |
| East Feliciana Parish | 1 | 1 |
| Edgecombe County | 3 | 9 |
| Edgefield County | 1 | 4 |
| Edwards County | 1 | 58 |
| Egypt | 1 | 3 |
| El Paso County | 163 | 748 |
| Elbert County | 6 | 31 |
| Elk County | 3 | 5 |
| Elk County | 2 | 11 |
| Ellis County | 2 | 7 |
| Ellis County | 1 | 2 |
| Ellis County | 1 | 1 |
| Ellsworth County | 1 | 1 |
| Elmore County | 4 | 18 |
| Erie County | 10 | 40 |
| Escambia County | 4 | 18 |
| Essex County | 2 | 17 |
| Estonia | 0 | 0 |
| Ethiopia | 3 | 22 |
| Etowah County | 1 | 2 |
| Fairfield County | 2 | 6 |
| Fannin County | 9 | 17 |
| Fayette County | 2 | 6 |
| Fayette County | 3 | 8 |
| Fayette County | 4 | 4 |