Adelaide: Statement of Changes in Water Assets and Water Liabilities
Water availability in the Adelaide region increased by 7,001 ML during the 2015–16 year. This is an improvement compared with 2014–15, where a 28,936 ML decline in water availability was observed. 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 is prepared on an accrual basis, and presents the changes in water assets and water liabilities that occurred during the reporting year. These changes include accrual transactions (e.g. allocations and forfeitures) and actual water flows, both natural and engineered.
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 asset increases | ||
| Surface water increases | 322,740 | 374,616 |
| Precipitation | 7,329 | 7,096 |
| Runoff | 170,411 | 237,520 |
| Claims: inter-region | 145,000 | 130,000 |
| Total surface water increases | 322,740 | 374,616 |
| Groundwater increases | 105,364 | 414,149 |
| Inter-region inflow | 20 | 27 |
| Inter-region coastal inflow | 1,300 | 1,603 |
| Recharge: landscape | 100,839 | 408,445 |
| Leakage: farm dams | - | 888 |
| Managed aquifer recharge: individual users | 3,205 | 3,186 |
| Total groundwater increases | 105,364 | 414,149 |
| Urban water system increases | 103,323 | 114,670 |
| Wastewater collected | 95,637 | 91,945 |
| Delivery: desalinated water | 7,686 | 22,725 |
| Total urban water system increases | 103,323 | 114,670 |
| Irrigation scheme increases | 9,635 | 8,258 |
| Claims: inter-region | 9,037 | 7,674 |
| Other increases | 598 | 584 |
| Total irrigation scheme increases | 9,635 | 8,258 |
| Total water asset increases | 541,062 | 911,693 |
| Water liability decreases | ||
| Surface water liability decreases | 4,926 | 5,700 |
| Adjustment and forfeiture: individual users | 4,926 | 5,700 |
| Total surface water liability decreases | 4,926 | 5,700 |
| Groundwater liability decreases | 45,844 | 50,693 |
| Adjustment and forfeiture: individual users | 45,844 | 50,693 |
| Total groundwater liability decreases | 45,844 | 50,693 |
| Total water liability decreases | 50,770 | 56,393 |
| Water asset decreases | ||
| Surface water decreases | 90,571 | 197,246 |
| Evaporation | 15,705 | 24,651 |
| Outflow | 70,010 | 106,422 |
| Recharge: landscape | - | - |
| Claims: inter-region | 4,856 | 66,173 |
| Total surface water decreases | 90,571 | 197,246 |
| Groundwater decreases | 2,418 | 337,585 |
| Inter-region outflow | 378 | 368 |
| Inter-region coastal outflow | 932 | 966 |
| Discharge: landscape | - | 335,143 |
| Extraction: statutory rights | 1,108 | 1,108 |
| Total groundwater decreases | 2,418 | 337,585 |
| Urban water system decreases | 213,904 | 210,011 |
| Supply system delivery: urban users | 134,533 | 136,092 |
| Discharge: sea | 56,381 | 58,462 |
| Supply system transfer: inter-region | 4,771 | 1,743 |
| Other supply system decreases | 2,043 | 1,257 |
| Recycled water delivery: urban users | 5,972 | 3,547 |
| Other wastewater decreases | 10,204 | 8,910 |
| Total urban water system decreases | 213,904 | 210,011 |
| Irrigation scheme decreases | 29,073 | 27,383 |
| Delivery | 28,815 | 26,992 |
| Claims: inter-region | 258 | 391 |
| Total irrigation scheme decreases | 29,073 | 27,383 |
| Total water asset decreases | 335,966 | 772,225 |
| Water liability increases | ||
| Surface water liability increases | 8,659 | 8,629 |
| Allocation: individual users | 8,659 | 8,629 |
| Total surface water liability increases | 8,659 | 8,629 |
| Groundwater liability increases | 103,651 | 102,050 |
| Allocation: individual users | 103,651 | 102,050 |
| Total groundwater liability increases | 103,651 | 102,050 |
| Total water liability increases | 112,310 | 110,679 |
| Unaccounted-for difference | ||
| Unaccounted-for difference | 136,555 | 114,118 |
| Unaccounted-for difference | 136,555 | 114,118 |
| Total unaccounted-for difference | 136,555 | 114,118 |
| Change in net water assets | 7,001 | (28,936) |