National Water Account 2015

Sydney: Future outlook

Warragamba Dam, New South Wales (iStock © Kokkai Ng)

Future prospects

This section looks forward 12 months and considers what water assets, claims and commitments might affect the region's water resources.

Table N27 shows that there is a surplus of available water assets over water liabilities and future water commitments that are expected to be settled within 12 months of the reporting date.

 

Table N27 Future prospects for the Sydney region
 Volume
ML
Total water assets at 30 June 20152,667,786
less water assets not available to be accessed, taken or delivered within 12 months of the reporting date: 
dead storage108,471
less total water liabilities as at 30 June 20150
Subtotal2,559,315
less future commitments expected to be settled within 12 months of the reporting date: 
expected surface water allocation diversion (urban water system)550,000
expected surface water allocation diversions34,000
expected diversion of other water allocations and rights32,530
Surplus/deficit of available water assets over water liabilities and future commitments expected to be settled within 12 months of the reporting date1,942,785

 

The expected diversions and extractions are based on a rounded average of abstractions made during the 2013–14 and 2014–15 years.  Actual available storage over the next 12 months will be influenced by a number of factors such as climate, actual diversions and available volume in storages.

For more detailed information about future water and climate predictions, including seasonal streamflow forecasts and short video summaries, please see Climate outlooks on the Bureau of Meteorology website.

 

Contingent water assets and contingent water liabilities

Contingent water assets

Desalinated water supply to Sydney Water Corporation's distribution system is a contingent water asset. Sydney's desalination plant at Kurnell has the capacity to produce 91,250 ML per year (Sydney Water Corporation 2013).

As no desalinated water was transferred into the Sydney region during the 2014–15 year, the production capacity of desalinated water at Kurnell (91,250 ML) can be considered a contingent water asset.

More details on Sydney's desalinated water supply are provided in Desalinated water in 'Contextual information'.

Contingent water liabilities

There are no contingent water liabilities in the Sydney region.