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National Water Account 2016

Murray–Darling Basin: Statement of Changes in Water Assets and Water Liabilities

Water availability in the Murray–Darling Basin region increased by 75,426 ML during the 2015–16 year. This increase is reported after three years in a row in which the water availability in the region decreased. The change in water availability 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.


for the year ended 30 June 2016

 2016 ML2015 ML
Water asset increases
Surface water increases 23,078,49418,170,707
Precipitation 1,302,4771,199,912
Inter-region inflow 00
Runoff  19,091,88814,403,148
Point return: irrigation 295,507297,113
Discharge: urban supply system 00
Discharge: user
Claims: inter-region 1,761,5921,921,622
Return flow: environmental purposes 590,987  314,011
Discharge: wastewater 36,043 34,901
Total surface water increases 23,078,494 18,170,707
Groundwater increases 410,5592,263,928
Inter-region inflow 2,553 2,657
Inter-region coastal inflow 77 90
Recharge: landscape 407,3402,189,814
Leakage: farm dams
Leakage: urban system
Leakage: irrigation
Managed aquifer recharge: individual user 589 267
Other increases 0 71,100
Total groundwater increases 410,5592,263,928
Total water asset increases23,489,05320,434,635
Water liability decreases
Surface water liability decreases (980,800)(555,942)
Adjustment and forfeiture: individual users (549,952)(763,930)
Adjustment and forfeiture: urban system 76,491139,032
Adjustment and forfeiture: environmental purposes (507,339)68,956
Total surface water liability decreases (980,800)(555,942)
Groundwater liability decreases1,020,948163,336
Adjustment and forfeiture: individual users 990,726129,352
Adjustment and forfeiture: urban system 29,53434,302
Adjustment and forfeiture: environmental purposes 688(318)
Total groundwater liability decreases 1,020,948163,336
Total water liability decreases40,148(392,606)
Water asset decreases
Surface water decreases15,505,87012,567,628
Evaporation 3,709,2144,871,102
Outflow 795,0001,196,000
Recharge: landscape
Overflow: landscape 59,54621,490
Diversion: statutory rights 59,24927,692
Non-allocated diversion: individual users 818,728773,927
Non-allocated diversion: urban system 12,25510,561
River and floodplain losses 9,873,9965,285,926
Claims: inter-region 0100,000
Non-allocated environmental diversions and other environmental decreases 177,882280,930
Total surface water decreases 15,505,87012,567,628
Groundwater decreases 325,0672,370,689
Inter-region outflow 57 24
Inter-region coastal outflow 1,700 1,532
Discharge: landscape 85,641 2,144,416
Extraction: statutory rights 237,669221,332
Non-allocated extraction: individual users 03,385
Other decreases 00
Total groundwater decreases 325,0672,370,689
Total water asset decreases 15,830,93714,938,317
Water liability increases
Surface water liability increases 6,418,4747,663,138
Allocation: individual users 4,488,8365,206,841
Allocation: urban system 542,659504,852
Allocation: environmental purposes 1,386,9791,951,445
Total surface water liability increases6,418,4747,663,138
Groundwater liability increases 2,218,2872,239,389
Allocation: individual users 2,166,3332,166,465
Allocation: urban system 50,68171,085
Allocation: environmental purposes 1,2731,839
Total groundwater liability increases 2,218,2872,239,389
Total water liability increases 8,636,761 9,902,527
Unaccounted-for difference
Unaccounted-for difference 1,013,9231,362,980
Unaccounted-for difference 1,013,923 1,362,980
Total unaccounted-for difference 1,013,923 1,362,980
Total unaccounted-for difference 1,013,923 1,362,980
Change in net water assets 75,426(3,435,835)