| Sample location | Sample code No | Des. | Long | Lat | As mg/l | Co mg/l | Cd mg/l | Cr mg/l | Cu mg/l | Fe mg/l | Mn mg/l | Ni mg/l | Pb mg/l | Zn mg/l | Tem (˚C) | EC (µs/cm) | pH | TDS (ppm) |
| Vwei | SW1 | Pond | 8.8811 | 9.7216 | 5 × 10−4 | 2.59 × 10−3 | 0 | 3.4 × 10−3 | 1.6 × 10−2 | 2.661 | 1.2 × 10−1 | 3.0 × 10−3 | 3.43 × 10−2 | 6.71 × 10−2 | 23.6 | 880 | 8.5 | 563 |
| Bisichi1 | SW2 | Pond | 8.8911 | 9.7158 | 9 × 10−4 | 2.15 × 10−3 | 6.4 × 10−4 | 4.5 × 10−3 | 3.6 × 10−2 | 1.668 | 1.84 × 10−1 | 9.8 × 10−3 | 2.62 × 10−2 | 2.86 × 10−1 | 25.9 | 884 | 8.6 | 566 |
| Bisichi2 | SW3 | Pond | 8.8947 | 9.7131 | 0 | 1.14 × 10−3 | 0 | 2.9 × 10−3 | 9.2 × 10−3 | 3.26 × 10−1 | 3.46 × 10−2 | 2.2 × 10−3 | 5.3 × 10−3 | 2.63 × 10−2 | 26.1 | 1024 | 8.5 | 655 |
| Dunduma | SW4 | Pond | 8.9100 | 9.6936 | 0 | 1.21 × 10−3 | 6 × 10−5 | 2.1 × 10−3 | 6.1 × 10−3 | 1.200 | 1.26 × 10−1 | 2.2 × 10−3 | 2.0 × 10−3 | 3.10 × 10−2 | 25.9 | 546 | 8.4 | 349 |
| Zira | SW5 | Pond | 8.9053 | 9.7029 | 0 | 9.8 × 10−4 | 0 | 2.8 × 10−3 | 1.03 × 10−2 | 5.57 × 10−1 | 6.21 × 10−2 | 2.0 × 10−3 | 3.3 × 10−3 | 1.94 × 10−2 | 27.4 | 716 | 8.2 | 458 |
| Kuru Jenta1 | SW6 | Pond | 8.8825 | 9.6947 | 0 | 2.67 × 10−3 | 6 × 10−5 | 2.8 × 10−3 | 1.73 × 10−2 | 1.947 | 2.15 × 10−1 | 3.0 × 10−3 | 6.0 × 10−3 | 6.67 × 10−2 | 24.9 | 892 | 8.1 | 571 |
| Kuru Jenta2 | SW7 | Pond | 8.8881 | 9.6966 | 8 × 10−4 | 1.52 × 10−3 | 2.8 × 10−4 | 4.4 × 10−3 | 2.65 × 10−2 | 3.755 | 1.21 × 10−1 | 5.6 × 10−3 | 1.53 × 10−2 | 1.12 × 10−1 | 29.1 | 1856 | 8.1 | 1187 |
| Rahai | SW8 | Pond | 8.9094 | 9.6869 | 0 | 2.7 × 10−4 | 0 | 2.5 × 10−3 | 6.8 × 10−3 | 8.4 × 10−2 | 1.92 × 10−2 | 1.8 × 10−3 | 1.0 × 10−3 | 1.34 × 10−2 | 28.0 | 932 | 8.2 | 597 |
| Rassa1 | SW9 | Pond | 8.9272 | 9.6951 | 1.3 × 10−3 | 7.34 × 10−2 | 2.9 × 10−4 | 1.85 × 10−2 | 4.53 × 10−2 | 2.02 × 10−1 | 2.8665 | 1.46 × 10−2 | 8.52 × 10−2 | 9.63 × 10−2 | 26.8 | 1596 | 8.4 | 1021 |
| Rassa 2 | SW10 | Pond | 8.9294 | 9.6973 | 0 | 8.68 × 10−3 | 5 × 10−5 | 3.7 × 10−3 | 1.62 × 10−2 | 8.333 | 3.91 × 10−1 | 4.1 × 10−3 | 1.17 × 10−2 | 3.62 × 10−2 | 29.5 | 876 | 8.5 | 561 |
| Gassa1 | SW11 | Pond | 8.8956 | 9.5741 | 0 | 2.61 × 10−3 | 1.7 × 10−4 | 4.1 × 10−3 | 1.51 × 10−2 | 1.865 | 1.51 × 10−1 | 3.6 × 10−3 | 8.3 × 10−3 | 8.13 × 10−2 | 29.5 | 264 | 8.8 | 169 |
| Gassa2 | SW12 | Pond | 8.8969 | 9.5742 | 0 | 6.9 × 10−4 | 0 | 2.6 × 10−3 | 4.5 × 10−3 | 4.7 × 10−1 | 7.26 × 10−2 | 1.7 × 10−3 | 1.4 × 10−3 | 1.34 × 10−2 | 27.6 | 486 | 8.6 | 311 |
| Britvic | SW13 | Pond | 8.9078 | 9.5638 | 0 | 2.8 × 10−4 | 0 | 1.9 × 10−3 | 5.4 × 10−3 | 2.01 × 10−1 | 3.01 × 10−2 | 1.3 × 10−3 | 1.0 × 10−3 | 1.03 × 10−2 | 28.2 | 300 | 8.4 | 193 |