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Bureau Home » Water Information » National Water Account » 2023 Account » Sydney » Water Accounting Statements » Water Assets and Water Liabilities

Sydney: Statement of Water Assets and Water Liabilities

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

  • Water availability in the Sydney region's storages slightly decreased during 2022-23.
  • 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 on 30 June 2023 were 2,641 GL. Total water liabilities were 0 GL. Closing net water assets on 30 June 2023 was 2,641 GL, 3% less 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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  2023 (ML) 2022 (ML) 2021 (ML) 2020 (ML) 2019 (ML) 2018 (ML)
Water assets
Surface water 2,641,242 2,724,310 2,682,178 2,276,782 1,530,690 1,965,723
Accessible storage 2,529,406 2,607,580 2,560,993 2,166,171 1,420,410 1,854,093
Dead storage 108,430 108,430 108,430 108,430 108,430 108,430
Rivers 3,406 8,300 12,755 2,181 1,850 3,200
 
Groundwater - – – – – –
Aquifers - – – – – –
 
Urban water system - – – – – –
Urban water supply system - – – – – –
 
Total water assets 2,641,242 2,724,310 2,682,178 2,276,782 1,530,690 1,965,723
Water liabilities
Surface water liability 0 0 0 0 0 0
Allocation remaining: individual users 0 0 0 0 0 0
 
Groundwater liability 0 0 0 0 0 0
Allocation remaining: individual users 0 0 0 0 0 0
 
Total water liabilities 0 0 0 0 0 0
Net water assets
Net surface water assets 2,641,242 2,724,310 2,682,178 2,276,782 1,530,690 1,965,723
Opening net surface water assets 2,724,310 2,682,178 2,276,782 1,530,690 1,965,723 2,602,979
Change in net surface water assets (83,068) 42,132 405,396 746,092 (435,033) (637,256)
Closing net surface water assets 2,641,242 2,724,310 2,682,178 2,276,782 1,530,690 1,965,723
 
Net groundwater assets - – – – – –
Opening net groundwater assets - – – – – –
Change in net groundwater assets - - - - - -
Closing net groundwater assets - – – – – –
 
Net urban water assets - – – – – –
Opening net urban water assets - – – – – –
Change in net urban water assets - - - - - -
Closing net urban water assets -  – – – – –
Total closing net water assets 2,641,242 2,724,310 2,682,178 2,276,782 1,530,690 1,965,723
Total change in net water assets (83,068) 42,132 405,396 746,092 (435,033) (637,256)

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