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Fitzroy: Statement of Changes in Water Assets and Water Liabilities

For the water account period 01 July 2022 - 30 June 2023

  • The volume of water in the region's storages increased during 2022-23 for the third consecutive year.
  • This increase represents the change in water volume in the region's surface water storages.

Schematic representation of the Fitzroy region. Total water inflows during 2022–23 was 5,563 GL. Total water outflows was 5,665 GL. Water storage at 30 June 2023 was 215 GL more than the previous 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 assets and water liabilities that occurred during the year.

 

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  2023 (ML) 2022 (ML) 2021 (ML) 2020 (ML) 2019 (ML) 2018 (ML)
Water inflows
Surface water inflows 4,424,007 3,321,936 1,161,190 3,106,886 2,533,947 2,128,260
Precipitation on storages 153,805 129,606 79,218 77,286 76,385 109,119
Precipitation on rivers 82,374 88,037 33,323 59,050 47,746 59,199
Runoff 4,097,607 3,039,906 1,018,698 2,896,598 2,337,274 1,920,297
Flood return 90,221 64,387 29,951 73,952 72,542 39,645
 
Groundwater inflows 1,139,222 1,140,974 455,159 857,380 688,021 1,013,249
Recharge from surface water* 1,139,222 1,140,974 455,159 857,380 688,021 1,013,249
 
Total water inflows 5,563,229 4,462,910 1,616,349 3,964,266 3,221,968 3,141,509
Water outflows
Surface water outflows 5,558,133 5,164,187 1,942,648 4,871,810 2,931,315 3,587,556
Evaporation from storages 333,725 350,394 333,959 364,178 354,527 362,338
Evaporation from rivers 124,275 121,564 75,988 102,467 91,886 115,470
Outflow 3,094,947 2,717,433 529,791 2,791,702 1,339,333 1,065,823
Overbank flow 254,834 225,972 42,916 215,602 139,513 525,670
Recharge to groundwater* 1,139,222 1,140,974 455,159 857,380 688,021 1,013,249
Non-allocated diversion to individual users - - 332,648 318,592 99,221 227,780
Non-allocated diversion to agriculture users 176,000 170,992 - - - -
Non-allocated diversion to industrial users 360 359 - - - -
Non-allocated diversion to irrigation users 1,890 1,819 1,419 1,439 1,433 -
Non-allocated diversion to mining users 8,900 9,300 - - - -
Non-allocated diversion to other users 214,105 217,103 - - - -
Non-allocated diversion to stock and domestic users 245 242 - - - -
Non-allocated diversion to urban users 3,030 2,962 2,957 2,932 700 -
Allocated diversion to industrial users 51,000 49,645 55,234 56,438 58,205 56,282
Allocated diversion to irrigation users 146,720 146,647 104,362 152,193 135,802 195,373
Allocated diversion to other users 370 370 490 505 14,635 17,203
Allocated diversion to stock and domestic users - - - - - -
Allocated diversion to urban users 8,510 8,411 7,725 8,382 8,039 8,368
Allocated diversion to inter-region supply - - - - - -
 
Groundwater outflows 106,700 105,049 63,182 64,607 65,505 10,124
Non-allocated extraction to individual users - - 43,959 41,281 43,652 93,472
Non-allocated extraction to agriculture users 9,470 9,395 - - - -
Non-allocated extraction to industrial users 26,980 26,358 - - - -
Non-allocated extraction to irrigation users 48,020 47,066 50,360 50,508 51,179 -
Non-allocated extraction to mining users 7,050 6,992 - - - -
Non-allocated extraction to other users 5,575 5,624 - - - -
Non-allocated extraction to stock and domestic users 1,330 1,383 - - - -
Non-allocated extraction to urban users 1,460 1,479 2,554 2,554 1,479 -
Allocated extraction to individual users - - 626 382 396 361
Allocated extraction to irrigation users 6,500 6,437 9,119 10,666 11,946 9,443
Allocated extraction to urban users - - 523 497 505 320
Allocated extraction to industrial users 315 315 - - - -
 
Total water outflows 5,664,833 5,269,236 2,005,830 4,936,417 2,996,820 3,597,680
 
Unaccounted-for difference 317,011 891,536 438,598 851,261 (333,170) 82,251
 
 
Change in water storages            
Change in surface water storages 215,407 85,210 49,117 (120,890) (108,022) (373,920)
Change in groundwater storages 0 0 0 0 0 0
Total change in water storages 215,407 85,210 49,117 (120,890) (108,022) (373,920)
 
Closing water storages 726,572 511,165 425,955 376,838 497,728 605,750
 
 
Change in water liability
Surface water liability 0 0 0 0 0 0
Surface water carryover 0 0 0 0 0 0
 
Groundwater liability 0 0 0 0 0 0
Groundwater carryover 0 0 0 0 0 0
Total change in water liability 0 0 0 0 0 0
             
Net change in water assets 215,407 85,210 49,117 (120,890) (108,022) (373,920)

* between-store flows

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