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Sydney: Statement of Water Assets and Water Liabilities

as at 30 June 2021

  • Water availability in the Sydney region's storages increased during 2020–21.
  • Water availability is represented by the net water assets, which are the volume of water assets minus the water liabilities.

Schematic representation of the Sydney region. Total water assets at 30 June 2021 was 2,686 GL. Total water liabilities was 0 GL. Closing net water assets at 30 June 2021 was 2,686 GL,22% more than last year.

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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  2021 ML 2020 ML 2019 ML 2018 ML 2017 ML 2016 ML
Water assets
Surface water 2,686,446 2,195,485 1,449,663 2,044,868 2,691,029 2,821,555
Accessible storages 2,564,179 2,083,900 1,339,422 1,933,813 2,579,094 2,705,241
Dead storages 108,430 108,430 108,430 108,430 108,430 108,430
Rivers 13,837 3,155 1,811 2,625 3,505 7,884
 
Groundwater – – – – – –
Aquifers – – – – – –
 
Urban water system 0 0 0 0 0 0
Claims: surface water* 0 0 0 0 0 0
Claims: groundwater* 0 0 0 0 0 0
 
Total water assets 2,686,446 2,195,485 1,449,663 2,044,868 2,691,029 2,821,555
Water liabilities
Surface water liability 0 0 0 0 0 0
Allocation remaining: individual users 0 0 0 0 0 0
Allocation remaining: urban system* 0 0 0 0 0 0
 
Groundwater liability 0 0 0 0 0 0
Allocation remaining: individual users 0 0 0 0 0 0
Allocation remaining: urban system* 0 0 0 0 0 0
 
Total water liabilities 0 0 0 0 0 0
Net water assets
Net surface water assets 2,686,446 2,195,485 1,449,663 2,044,868 2,691,029 2,821,555
Opening net surface water assets 2,195,485 1,449,663 2,044,868 2,691,029 2,821,555 2,664,966
Change in net surface water assets 490,961 745,822 (595,205) (646,161) (130,526) 156,589
Closing net surface water assets 2,686,446 2,195,485 1,449,663 2,044,868 2,691,029 2,821,555
 
Net groundwater assets – – – – – –
Opening net groundwater assets – – – – – –
Change in net groundwater assets – – – – – –
Closing net groundwater assets – – – – – –
 
Net urban water assets 0 0 0 0 0 0
Opening net urban water assets 0 0 0 0 0 0
Change in net urban water assets 0 0 0 0 0 0
Closing net urban water assets 0 0 0 0 0 0
 
Total closing net water assets 2,686,446 2,195,485 1,449,663 2,044,868 2,691,029 2,821,555
             
Total change in net water assets 490,961 745,822 (595,205) (646,161) (130,526) 156,589

 

* between-store claims/liabilities

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