Table 4 Hydrochemistry type results of surface water and groundwater samples based on HFE diagram.
Water facies in HFE diagram | Number and percentage of samples | ||||
|---|---|---|---|---|---|
Wet season of 2020 and 2023 | Dry season of 2021 and 2024 | Surface water and seawater | |||
Pore aquifer samples | Fractured aquifer samples | Pore aquifer samples | Fractured aquifer samples | ||
1. Na–HCO3 | – | – | – | – | – |
2. Na–MixHCO3 | 1/4.17% | – | 1/4.35% | – | – |
3. Na–MixCl | 1/4.17% | 1/4.17% | – | – | – |
4. Na–Cl | 21/87.5% | 2/8.33% | 22/95.65% | 1/6.25% | 26/100% |
5. MixNa–HCO3 | – | – | – | – | – |
6. MixNa–MixHCO3 | – | – | – | – | – |
7. MixNa–MixCl | – | – | – | – | – |
8. MixNa–Cl | – | 4/16.67% | – | 1/6.25% | – |
9. MixCa–HCO3 | – | – | – | – | – |
10. MixCa–MixHCO3 | – | – | – | 1/6.25% | – |
11. MixCa–MixCl | – | 2/8.33% | – | – | – |
12. MixCa–Cl | – | – | – | 4/25.00% | – |
13. Ca–HCO3 | – | 1/4.17% | – | – | – |
14. Ca–MixHCO3 | – | 6/25.00% | – | 4/25.00% | – |
15. Ca–MixCl | – | 8/33.33% | – | 1/6.25% | – |
16. Ca–Cl | 1/4.17% | – | – | 4/25.00% | – |
Total | 24/100% | 24/100% | 23/100% | 16/100% | 26/100% |