| Site/Control Code | Depth (cm) | Co-ordinates | Site Description | |
| Latitude | Longitude | |||
| ANKPA |
|
|
|
|
| F1 | 0 - 30 | 7.3799 | 7.6288 | Vicinity of Petrol station close to residential area, car wash |
| F2 | 0 - 30 | 7.3889 | 7.6307 | Vicinity of Petrol station, with motor park, opposite automobile repair workshop |
| F3 | 0 - 30 | 7.3558 | 7.6342 | Vicinity of Petrol station, close to a cassava farm |
| C1 | 0 - 30 | 7.3658 | 7.6495 | Pristine site |
| ANYIGBA |
|
|
|
|
| F4 | 0 - 30 | 7.5007 | 7.1788 | Vicinity of Petrol station, close to residential area, car wash |
| F5 | 0 - 30 | 7.4794 | 7.1736 | Vicinity of petrol station, with motor park, opposite an open market. |
| F6 | 0 - 30 | 7.4519 | 7.1532 | Vicinity of Petrol station, close to a cassava farm and an abandoned petrol station. |
| C2 | 0 - 30 | 7.5793 | 7.2076 | Pristine site |
| IDAH |
|
|
|
|
| F7 | 0 - 30 | 7.1379 | 6.7426 | Vicinity of Petrol station close to residential area, car wash |
| F8 | 0 - 30 | 7.1089 | 6.8069 | Vicinity of Petrol station, close to car wash |
| F9 | 0 - 30 | 7.1493 | 6.7928 | Vicinity of Petrol station, opposite automobile repair workshop |
| C3 | 0 - 30 | 7.1585 | 6.9338 | Pristine site |