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Adelaide: Statement of Water Assets and Water Liabilities

as at 30 June 2020

  • Water availability in the Adelaide region's storages increased during 2019–20.
  • Water availability is represented by the net water assets, which are the volume of water in storages minus the water liabilities.

Schematic representation of the Adelaide region. Total surface water and groundwater assets at 30 June 2020 was 186 GL. Total water liabilities was 10 GL. Closing net water assets at 30 June 2020 was 176 GL, 4% 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.


Select comparative year

 2020 ML2019 ML2018 ML2017 ML2016 ML2015 ML
Water assets
Surface water100,00292,33792,399111,177103,30095,231
Claims: inter-region000000
Urban water system000000
Claims: surface water*000000
Irrigation scheme000000
Claims: inter-region000000
Total water assets186,358178,693178,755197,533189,656181,587
Water liabilities
Surface water liability622307430545377614
Allocation remaining: individual users622307430545377614
Allocation remaining: urban system*000000
Groundwater liability9,2898,1767,43121,5429,0887,321
Allocation remaining: individual users9,2898,1767,43121,5429,0887,321
Total water liabilities9,9118,4837,86122,0879,4657,935
Net water assets
Net surface water assets99,38092,03091,969110,632102,92394,617
Opening net surface water assets92,03091,969110,632102,92394,617122,533
Change in net surface water assets7,35061(18,663)7,7098,306(27,916)
Closing net surface water assets99,38092,03091,969110,632102,92394,617
Net groundwater assets77,06778,18078,92564,81477,26879,035
Opening net groundwater assets78,18078,92564,81477,26879,03580,249
Change in net groundwater assets(1,113)(745)14,111(12,454)(1,767)(1,214)
Closing net groundwater assets77,06778,18078,92564,81477,26879,035
Net urban water assets000000
Opening net urban water assets000000
Change in net urban water assets000000
Closing net urban water assets000000
Net irrigation water assets000000
Opening net irrigation water assets000000
Change in net irrigation water assets000000
Closing net irrigation water assets000000
Total closing net water assets 176,447170,210170,894175,446180,191173,652
Total change in net water assets6,237(684)(4,552)(4,745)6,539(29,130)


* between-store flows

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