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National Water Account 2015

Ord: Statement of Water Assets and Water Liabilities

Lake Argyle Dam, Western Australia (iStock © czardases)

The Statement of Water Assets and Water Liabilities presents the volume of water assets and water liabilities at the start and end of the reporting year.

Water assets of the region include physical water assets (referred to as the water stores) and rights or claims to water. Water liabilities include commitments to deliver water to users at the end of the year. The closing net water assets are the volume of water assets in the region minus the water liabilities at the end of the reporting year (Figure W1).

 

Figure W1  Schematic diagram of water assets and water liabilities for the region at 30 June 2015
Figure W1 Water assets and water liabilities for the region at 30 June 2015

 

More detail on the water assets and water liabilities for the 2014–15 year is provided in the Statement of Water Assets and Water Liabilities below.

Items in the statements are hyperlinked to the associated section of the Supporting information notes. Methods used to derive item volumes are provided in the Quantification approaches notes.

 

as at 30 June 2015

 2015 ML2014 ML
Water assets
Surface water9,942,97010,944,857
Storages9,928,77010,930,057
Unregulated river
Regulated river14,20014,800
Lakes and wetlands
Total surface water9,942,97010,944,857
 
Groundwater
Water table aquifer
Underlying aquifers
Total groundwater
 
Total water assets9,942,97010,944,857
Water liabilities
Surface water liability389,855293,774
Allocation remaining: individual users20,58522,160
Allocation remaining: urban system669670
Allocation remaining: irrigation368,601270,944
Total surface water liability389,855293,774
 
Groundwater liability3,4463,474
Allocation remaining: individual users1,1941,222
Allocation remaining: urban system2,2522,252
Total groundwater liability3,4463,474
 
Total water liabilities393,301297,248
Opening net water assets10,647,6098,299,451
Change in net water assets(1,097,940)2,348,158
Closing net water assets9,549,66910,647,609