Sub-locations
| Name | Sites | Samples |
|---|---|---|
| Mason County | 3 | 82 |
| Matagorda County | 1 | 8 |
| Maverick County | 5 | 28 |
| McCulloch County | 3 | 17 |
| McLennan County | 4 | 87 |
| McMullen County | 7 | 25 |
| Medina County | 4 | 18 |
| Menard County | 2 | 14 |
| Midland County | 2 | 7 |
| Milam County | 3 | 66 |
| Mills County | 2 | 11 |
| Morris County | 1 | 5 |
| Nacogdoches County | 19 | 107 |
| Navarro County | 4 | 12 |
| Nolan County | 1 | 1 |
| Nueces County | 11 | 107 |
| Ochiltree County | 7 | 20 |
| Orange County | 2 | 8 |
| Panola County | 2 | 28 |
| Parker County | 2 | 3 |
| Pecos County | 10 | 46 |
| Polk County | 3 | 5 |
| Potter County | 8 | 50 |
| Presidio County | 29 | 169 |
| Rains County | 2 | 5 |
Sites
| Site Identifier | Name | Location | Samples |
|---|---|---|---|
| 41SY41 | Robert Griffin | TX | 1 |
| 41SY45 | Buddy Hancock | TX | 1 |
| 41SY92 | Tyson | TX | 4 |