Sydney
19.17 Decrease of urban claim on surface water

Forfeiture of allocation for the line item is 584,696 ML.

This line item reflects unused portion of the allocation/claim associated with the urban water store for the urban water utilities. The volume for the line item is the difference between calculated volumetric allocation/claim stated in line item 11.18 (1,022,865 ML) and diversions stated in line item 11.12 (438,169 ML).

Entitlement information was extracted from: Draft Water Sharing Plan – Greater Metropolitan Unregulated River Water Sources; databases and water management licences for Goulburn Mulwaree Council, Lithgow City Council, Shoalhaven City Council and Wingecarribee Shire Council.

Bureau of Meteorology: calculated adjustment and forfeiture of allocation/claim; NSW Office of Water, Goulburn Mulwaree Council, Lithgow City Council, Shoalhaven City Council and Wingecarribee Shire Council: entitlement information; see 'Data provider' in line item 17.2 – metered diversions from reservoirs.

Water management licences issued to the urban holders by the NSW Office of Water applicable to the 2010–11 year did not make provisions for the carry-over of any remaining allocation at the end of the year. Therefore, forfeiture of allocation on flows for this entitlement category is the difference between the announced allocation/claim and measured diversions from the storages for the 2010–11 year. Calculation methods for the announced allocation and measured diversions are available in:

• line item 11.18 for the volumetric value for the announced allocation from the surface water store for the urban holder category
• line item 17.2 for metered diversions from storages.

See 'Approximations, assumptions, caveats/limitations' in line item 11.18 for volumetric value for the announced allocation/claim, and in line item 17.2 for metered diversions from storages.

Adjustment and forfeiture of allocation/claim was estimated. Uncertainty is ungraded.

The following table compares the value at 30 June 2010 reported in this account with the corresponding value reported in the 2010 Account.

 

Comparative information from the 2010 Account for line item 19.17

2011 Account line item	2010 Account line item	Value reported in the 2010 Account (ML)	Value reported in the 2011 Account (ML)	Additional information
19.17 Decrease of urban claim on surface water	24.8 Adjustment and forfeiture of allocation on regulated flows – urban water access entitlement/arrangement	521,320	521,320	Change in line item name