Border Rivers: Water Accounting Statements

as at 30 June 2024

  • The volume of water in the catchment's surface water storages decreased during 2023–24.
  • Closing net water assets, which is the volume of water assets minus the water liabilities, decreased by 38% compared to last year.

Schematic representation of the Border Rivers catchment. Total surface water and groundwater assets at 30 June 2021 was 513 GL. Total water liabilities was 142 GL. Closing net water assets at 30 June 2021 was 371 GL, 138% more than last year.

 

To view the water accounting statements for the Border Rivers catchment scroll down this page or click on the links below:

 

Statement of Water Assets and Water Liabilities

Lake Eildon, Murray–Darling Basin region (Alison Pouliot © 2009)

 

The Statement of Water Assets and Water Liabilities is provided in the table below. The statement presents the volume of water assets, and water liabilities at the start and end of the reporting year.

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Select comparative year

 

  2024 ML 2023 ML 2022 ML 2021 ML 2020 ML 2019 ML
Water assets
Surface water 364,871 581,727 664,314 428,051 98,503 45,865
Accessible storage 360,250 575,425 633,473 391,685 93,652 43,652
Dead storage 2,065 2,065 2,065 2,065 2,065 2,065
Rivers 2,556 4,237 28,776 34,301 3,148 148
 
Groundwater 8,810 8,810 8,810 8,810 8,810 8,810
Sustainable diversion limit 8,810 8,810 8,810 8,810 8,810 8,810
 
Total water assets 373,681 590,537 673,124 436,861 107,313 54,675
Water liabilities
Surface water liability 145,007 218,900 273,504 128,462 6,934 5,927
Carryover for individual users 128,823 202,684 257,292 121,815 4,770 3,736
Carryover environmental purposes 16,184 16,216 16,212 6,647 2,164 2,191
 
Groundwater liability 0 0 0 0 0 (39)
Carryover for individual users 0 0 0 0 0 (39)
Carryover environmental purposes 0 0 0 0 0 0
 
Total water liabilities 145,007 218,900 273,504 128,462 6,934 5,888
Net water assets
Net surface water assets 219,864 362,827 390,810 299,589 91,569 39,938
Opening net surface water assets 362,827 390,810 299,589 91,569 39,938 195,328
Change in net surface water assets (142,963) (27,983) 91,221 208,020 51,631 (155,390)
Closing net surface water assets 219,864 362,827 390,810 299,589 91,569 39,938
 
Net groundwater assets 8,810 8,810 8,810 8,810 8,810 8,849
Opening net groundwater assets 8,810 8,810 8,810 8,810 8,849 8,810
Change in net groundwater assets 0 0 0 0 (39) 39
Closing net groundwater assets 8,810 8,810 8,810 8,810 8,810 8,849
Total closing net water assets 228,674 371,637 399,620 308,399 100,379 48,787
             
Total change in net water assets (142,963) (27,983) 91,221 208,020 51,592 (155,351)
 

 

** different to published volume in historical accounts (see Governance for more information)

Note: quantification approaches used to derive each item volume are provided in the Methods

 

Statement of Changes in Water Assets and Water Liabilities

Murray River near Mildura (istock © bonzarelli)

 

Schematic representation of the Border Rivers catchment. Total surface water and groundwater assets at 30 June 2021 was 513 GL. Total water liabilities was 142 GL. Closing net water assets at 30 June 2021 was 371 GL, 138% more than last year.

 

The Statement of Changes in Water Assets and Water Liabilities is provided in the table below. The statement presents the actual water flows associated with the region's water stores, as well as the changes in water storages and water liabilities that occurred during the year.

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  2024 ML 2023 ML 2022 ML 2021 ML 2020 ML 2019 ML
Water inflows
Surface water inflows 959,343 1,996,550 3,479,421 1,625,239 321,599 260,305
Precipitation on storages 21,517 30,166 41,869 15,338 7,182 8,834
Precipitation on rivers 28,172 40,244 61,783 33,014 13,088 11,406
Runoff 903,602 1,896,201 3,330,652  1,564,676 301,085 239,824
Flood return 6,052  29,939 45,117 12,211 244  241
 
Groundwater inflows 199,709 387,362 578,396 206,001 90,930 130,302
Inter-region inflow - - - - - -
Recharge from surface water* 199,709 387,362 578,396 206,001 90,930 130,302
Other groundwater increases - - - - - -
 
Total water inflows 1,159,052 2,383,912 4,057,817 1,831,240 412,529 390,607
Water outflows
Surface water outflows 1,282,382 3,000,029 5,926,400 1,749,135 480,217 599,138
Evaporation from storages 58,512 61,151 61,485 28,537 26,900 37,174
Evaporation from rivers 46,986 68,455 92,291 40,693 25,253 38,693
Outflow from the region 482,232 1,925,574 4,136,806 711,903 164,629 130,426
Recharge to groundwater* 199,709 387,362 578,396 206,001 90,930 130,302
Overbank flow 38,525 291,465 569,297 101,894 22,132 317
Diversion: basic rights 13,474 13,474 12,097 12,097 12,097 13,474
Floodplain harvesting 74,795 45,587 208,249 353,693 17,849 2,950
Non-allocated diversion: individual users 152,954 68,851 195,262 252,007 111,266 25,519 
Non-allocated diversions: urban system 664 666 531 168 360 833
Non-allocated diversions: environmental purposes 6,390 10,634 19,955 14,670 3,246 0
Allocated diversion: individual users 205,893 124,488 50,071 24,076 3,659 211,556
Allocated diversion: urban system 2,248 2,322 1,960 2,500 1,896 494
Allocated diversion: environmental purposes 0 0 0 896 0 7,400
 
Groundwater outflows 5,326 4,440 1,968 6,444 8,237 9,148
Inter-region outflow - - - - - -
Extraction: basic rights 375 375 375 375 375 377
Allocated extraction: individual users 4,930 4,030 1,570 6,037 7,833 8,728
Allocated extractions: urban system 21 35 23 32 29 43
Allocated extractions: environmental purposes 0 0 0 0 0 0
Other groundwater decreases 0 0 0 0 0 0
 
Total water outflows 1,287,708 3,004,469 5,928,368 1,755,579 488,454 608,286
 
Unaccounted-for difference (88,200) 537,970 2,106,814 253,887 128,563 (72,253)
 
 
Change in water storage (216,856) (82,587) 236,263 329,548 52,638 (289,932)
Change in surface water storage (216,856) (82,587)  236,263 329,548  52,638  (289,932)
Change in groundwater storage  0  0  0  0  0  0
Total change in water storage  (216,856)  (82,587)  236,263  329,548  52,638  (289,932)
 
Closing water storage 373,681 590,537 673,124 436,861 107,313 54,675
 
 
Change in water liability
Surface water liability (73,893) (54,604) 145,042 121,528 1,007 (134,542)
Carryover for individual users (73,861) (54,608) 135,427 117,045 1,034 (135,791)
Carryover for environmental purposes  (32) 4 9,565 4,483 (27) 1,249
 
Groundwater liability 0 0 0 0 39 (39)
Carryover for individual users 0 0 0 0 39 (39)
Carryover for environmental purposes 0 0 0 0 0 0
Total change in water liability (73,893) (54,604) 145,042 121,528 1,046 (134,581)
             
Net change in water assets (142,963) (27,983) 91,221 208,020 51,592 (155,351)
 

 

* between-store flows

** different to published volume in historical accounts (see Governance for more information)

Note: quantification approaches used to derive each item volume are provided in the Methods