South East Queensland: Statement of Changes in Water Assets and Water Liabilities
for the year ended 30 June 2017
Water availability in the South East Queensland region decreased by 179,525 ML during the 2016–17 year. This follows a decrease in water availability during the previous year. The change in water available in the region at the end of the year is represented by the change in net water assets.
The Statement of Changes in Water Assets and Water Liabilities is provided in the table below. The statement presents the changes in water assets and water liabilities that occurred during the year, including accrual transactions (e.g. allocations and forfeitures) and actual water flows, both natural and engineered.
| 2017 ML | 2016 ML | |
|---|---|---|
| Water asset increases | ||
| Surface water increases | 3,691,107 | 1,878,545 |
| Precipitation | 210,893 | 158,532 |
| Runoff | 3,348,925 | 1,710,726 |
| Discharge: user | 2,455 | 9,287 |
| Overbank flood return | 128,834 | – |
| Groundwater increases | – | – |
| Urban water system increases | 252,687 | 246,609 |
| Wastewater collected | 251,070 | 245,085 |
| Delivery: desalinated water | 1,562 | 1,524 |
| Delivery: inter-region | 55 | – |
| Total water asset increases | 3,943,794 | 2,125,154 |
| Water liability decreases | ||
| Surface water liability decreases | 38,922 | 36,276 |
| Adjustment and forfeiture: individual users | 38,922 | 36,276 |
| Groundwater liability decreases | 3,797 | 4,817 |
| Adjustment and forfeiture: individual users | 3,797 | 4,817 |
| Total water liability decreases | 42,719 | 41,093 |
| Water asset decreases | ||
| Surface water decreases | 3,458,091 | 1,908,490 |
| Evaporation | 335,758 | 331,582 |
| Outflow | 2,720,953 | 1,306,764 |
| Leakage: landscape | 227,536 | 265,018 |
| Diversions: statutory rights | 3,794 | 3,810 |
| Non-allocated diversion: individual users | 1,323 | 1,316 |
| Overbank flood spilling | 168,727 | - |
| Other decreases | - | - |
| Groundwater decreases | 4,109 | 4,951 |
| Non-allocated extraction: individual users | 4,109 | 4,951 |
| Urban water system decreases | 560,926 | 507,936 |
| Supply system delivery: urban users | 313,447 | 264,097 |
| Discharge: sea | 213,598 | 208,648 |
| Discharge: landscape | 1,189 | 2,581 |
| Other supply system decreases | 11,242 | 9,141 |
| Recycled water delivery: urban users | 19,478 | 21,193 |
| Other wastewater and recycled water system decreases | 1,237 | 2,276 |
| Recycled water delivery: irrigation users | 104 | - |
| Wastewater inter-region transfer | 549 | - |
| Supply system inter-region transfer | 82 | - |
| Total water asset decreases | 4,023,126 | 2,421,377 |
| Water liability increases | ||
| Surface water liability increases | 61,522 | 63,664 |
| Allocation: individual users | 61,522 | 63,664 |
| Groundwater liability increases | 9,335 | 9,335 |
| Allocation: individual users | 9,335 | 9,335 |
| Total water liability increases | 70,857 | 72,999 |
| Unaccounted-for difference | (72,055) | (22,879) |
| Change in net water assets | (179,525) | (351,008) |