| Water Source Annual Forecast | 2022 | 2025 | 2028 | 2030 |
| Surface water (Mm3/year) | 31.40 | 31.40 | 31.42 | 31.40 |
| Groundwater (Mm3/year) | 0.20 | 0.20 | 0.21 | 0.20 |
| Water in storage (Mm3/year) | 0.03 | 0.03 | 0.03 | 0.03 |
| Sum (Million m3/year) | 31.63 | 31.63 | 31.65 | 31.63 |