Melbourne: Statement of Water Flows
The volume of water in the region's storages at 30 June 2016 was 584,129 ML, a decrease of 5,235 ML from the start of the 2015–16 year. This is the region's third consecutive annual decrease in storage volume.
The Statement of Water Flows is provided in the table below. The statement presents the actual water flows associated with the water stores of the region that occurred during the reporting year, including flows corresponding to the accrual transactions shown in the Statement of Changes in Water Assets and Water Liabilities.
Items in the statements are hyperlinked to the associated section of the Statement details. Methods used to derive item volumes are provided in the Reference information notes.
for the year ended 30 June 2016
| 2016 ML | 2015 ML | |
|---|---|---|
| Water inflows | ||
| Surface water inflows | 1,206,994 | 1,286,846 |
| Precipitation | 42,410 | 31,431 |
| Runoff | 916,345 | 1,105,096 |
| Point return: irrigation | 82 | 121 |
| Discharge: user | – | – |
| Delivery: inter-region agreement | 248,157 | 150,198 |
| Delivery: desalinated water | 0 | 0 |
| Total surface water inflows | 1,206,994 | 1,286,846 |
| Groundwater inflows | 220,851 | 376,818 |
| Inter-region inflow | 0 | 0 |
| Inter-region coastal inflow | 28,394 | 33,665 |
| Recharge: landscape | 192,457 | 287,949 |
| Other groundwater increases | 0 | 55,204 |
| Total groundwater inflows | 220,851 | 376,818 |
| Urban water system inflows | 351,066 | 336,882 |
| Wastewater collected | 350,688 | 336,494 |
| Delivery: inter-region | 378 | 388 |
| Other increases | 0 | 0 |
| Total urban water system inflows | 351,066 | 336,882 |
| Total water inflows | 1,778,911 | 2,000,546 |
| Water outflows | ||
| Surface water outflows | 778,145 | 933,260 |
| Evaporation | 58,034 | 54,829 |
| Outflow | 696,897 | 854,717 |
| Diversion: statutory rights | – | – |
| Non-allocated diversion: individual users | 14,670 | 12,550 |
| Allocated diversion: individual users | 5,004 | 8,058 |
| Transfer: inter-region | 3,540 | 3,106 |
| Total surface water outflows | 778,145 | 933,260 |
| Groundwater outflows | 161,434 | 169,675 |
| Inter-region outflow | 0 | 0 |
| Inter-region coastal outflow | 124,561 | 139,716 |
| Discharge: landscape | – | 10,918 |
| Extractions: statutory rights | – | – |
| Non-allocated extraction: individual users | – | – |
| Allocated extractions: individual users | 24,603 | 19,041 |
| Other groundwater decreases | 12,270 | 0 |
| Total groundwater outflows | 161,434 | 169,675 |
| Urban water system outflows | 736,372 | 697,115 |
| Evaporation | – | 15,896 |
| Leakage: landscape | – | 5,013 |
| Supply system delivery: urban users | 390,311 | 368,451 |
| Discharge: irrigation | 11,868 | 7,567 |
| Discharge: sea | 267,248 | 261,293 |
| Discharge: other | 27 | 131 |
| Supply system transfer: inter-region | 161 | 247 |
| Other supply system decreases | 15,574 | 15,745 |
| Recycled water delivery: urban users | 31,492 | 22,634 |
| Other wastewater decreases | 21,548 | 71 |
| Supply system delivery: irrigation | 1,365 | 67 |
| Total urban water system outflows | 736,372 | 697,115 |
| Total water outflows | 1,679,173 | 1,800,050 |
| Unaccounted-for difference | ||
| Unaccounted-for difference | (104,973) | (261,418) |
| Unaccounted-for difference | (104,973) | (261,418) |
| Total unaccounted-for difference | (104,973) | (261,418) |
| Total unaccounted-for difference | (104,973) | (261,418) |
| Opening water storage | 589,364 | 650,286 |
| Change in water storage | (5,235) | (60,922) |
| Closing water storage | 584,129 | 589,364 |