| Study sites | Geographic coordinates | Physical parameters in situ | ||||||
| Sample code | X | Y | pH | Cond (μS/cm) | Temp (˚C) | Date | Observations | |
| Kietenga (site 1) | S1 Sol-T | 750093 | 1375188 | --- | --- | --- | November, 15th 2022 | Control soil sample |
| S1 Sedi-ML | 750088 | 1375278 | --- | --- | --- | mining waste | ||
| S1/EFML | 750089 | 1375277 | 7.39 | 359 | 30.4 | Drilling near the site | ||
| S1/ESML | 750088 | 1375278 | 7.64 | 355 | 28.8 | Mineral washing water (reddish to yellowish color) | ||
| Fatmatenga (site 2) | S2/EFML | 748485 | 1374131 | 6.97 | 543 | 29.2 | Nearby drilling, drinking water | |
| S2/ESML | 747450 | 1373071 | 8.32 | 387 | 31.6 | Reddish washing water | ||
| Dam | EBML | 749560 | 1373319 | 8.01 | 124 | 24.6 | Washing dam | |