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National Water Account 2017

Murray–Darling Basin: Statement of Water Flows

for the year ended 30 June 2017

The volume of water in the region's storages at 30 June 2017 was 22,150,485 ML, an increase of 5,903,616 ML from the start of the 2016–17 year. This increase primarily represents the change in water volume in the region's surface water storages.

 

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The Statement of Water Flows is provided below and presents the actual water flows associated with the region's water stores during the year, including flows corresponding to the accrual transactions shown in the Statement of Changes in Water Assets and Water Liabilities.

 

 

 

  2017 ML 2016 ML
Water inflows
Surface water inflows 41,878,254 23,655,584
Precipitation 2,048,689 1,248,850
Inter-region inflow 22,000 0
Runoff 34,932,922 19,091,888
Point return: irrigation 277,177 295,507
Flood return 1,670,952
Discharge: urban supply system 0 0
Delivery: inter-region agreement 2,659,102 2,392,309
Return flow: environmental purposes 229,298 590,987
Discharge: wastewater 38,114 36,043
 
Groundwater inflows 688,236 411,123
Inter-region inflow 2,461 2,553
Inter-region coastal inflow 101 77
Recharge: landscape 680,003 407,340
Leakage: urban system 4,079
Managed aquifer recharge: individual user 1,592 1,153
Other increases 0 0
 
Total water inflows 42,566,490 24,066,707
Water outflows
Surface water outflows 35,721,594 23,009,275
Evaporation 4,518,203 3,376,265
Outflow 7,401,000 663,000
Overbank flow 6,562,380 59,546
River and floodplain losses 6,951,514 10,420,954
Diversions: statutory rights 50,861 59,249
Non-allocated diversion: individual users 1,675,241 818,728
Non-allocated diversion: urban system 11,661 12,255
Allocated diversion: individual users 5,716,523 4,734,934
Allocated diversion: urban system 308,004 481,808
Allocated diversion: environmental purposes 2,081,117 1,912,884
Non-allocated diversion: environmental purposes 154,218 42,246
Conveyance losses for allocated diversions  290,872  427,406
 
Groundwater outflows 1,265,367 1,616,391
Inter-region outflow 33 57
Inter-region coastal outflow 1,493 1,700
Discharge: landscape 63,999 85,641
Extraction: statutory rights 239,100 237,669
Non-allocated extraction 0 0
Allocated extraction: individual users 921,828 1,270,177
Allocated extraction: urban system 38,914 21,147
Allocated extraction: environmental purposes 0 0
Other decreases 0 0
 
Total water outflows 36,986,961 24,625,666
Unaccounted-for difference 324,087 1,013,359
 
Opening water storage 16,246,869 15,792,469
Change in water storage 5,903,616 454,400
Closing water storage 22,150,485 16,246,869