Table 1 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.
|Total water assets as at 30 June||2,783,245|
|Less water assets not available to be accessed, taken or delivered within 12 months of the reporting date|
|Less total water liabilities as at 30 June||0|
|Less future commitments expected to be settled within 12 months of the reporting date|
|Expected surface water allocation diversion (urban water system)||460,000|
|Expected diversion of other water allocations and rights||70,500|
|Surplus of available water assets over water liabilities and future commitments expected to be settled within 12 months of the reporting date||2,144,274|
|Surplus of available water assets, expected future inflows and future water rights over water liabilities and future water commitments within 12 months of the reporting date||2,144,274|
The expected diversions and extractions are based on a rounded average of abstractions made during the 2010, 2011 and 2012 Accounts. Surface water allocation diversions for the urban system have been sourced from line item 17.12. Other surface water allocation diversions are from line items 17.6, 17.11 and 17.16: however, the 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.
Contingent water assets and water liabilities
a. Contingent water assets
Desalinated water supply to Sydney Water Corporation's distribution system: Sydney's desalination plant at Kurnell has the capacity to produce 91,250 ML per year (Sydney Water Corporation).
As 61,290 ML of desalinated water was transferred into the Sydney region, the remaining production capacity of desalinated water at Kurnell (29,960 ML) can be considered a contingent water asset.
More details on Sydney's desalinated water supply are provided in Other water resources in Contextual information.