11.20 Increase of other urban claims on water

Supporting Information

This line item reflects the allocation/claim for the urban water system associated with industrial and commercial entitlement holders. Line item 3.9 reflects the liability to the connected surface water store from that allocation.

The volumetric value for the allocation/claim from regulated entitlements for industrial and commercial holders for 2010–11 is 23,000 ML. This value is based on Delta Electricity's entitlements stated in the water management licence and an assumed allocation of 100% at the beginning of 2010–11.

Reconciliation of this line item is described in the following table. 

Calculation of other urban claims on water
Line item
Volume (ML)


3.9 Other urban claims on water – opening balance



11.20 Increase of other urban claims on water



11.14 Other delivery of water to urban system



19.19 Decrease of other urban claims on water



3.9 Other urban claims on water – closing balance


Quantification Approach

Data Source

Draft Water Sharing Plan – Greater Metropolitan Unregulated River Water Sources; Delta Electricity Water Management Licence.

Provided by

Bureau of Meteorology: calculated allocation announcement/claim; NSW Office of Water and Delta Electricity: entitlement data.


The volumetric value for the announced allocation/claim on flows for the industrial and commercial holder category was derived by:

  • mapping entitlement values stated in the draft water sharing plan and Delta Electricity water management licence to the entitlement category.
  • applying an assumed allocation 100% at the beginning of 2010–11.

Assumptions, Limitations, Caveats and Approximations

There is no process of formal allocation announcement for the entitlement holders considered in this line item. Taking into consideration the water availability at the beginning of 2010–11, an allocation of 100% was assumed.

The NSW Office of Water records entitlements for this line item as unregulated for major utilities and local water utilities (to harvest unregulated inflow). The Bureau of Meteorology has separated these entitlements to other urban claims on water as Delta Electricity is considered an urban utility that uses water, not an urban utility that supplies water from the urban water system.

Calculated announced allocation/claim includes both water available to the end users and system losses. Entitlement values used for the calculation of announced allocation/claim are provisional and an estimate.

Uncertainty Information

The announced allocation/claim was estimated. Uncertainty was not quantified.

Comparative year

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 3.4

2011 Account line item

2010 Account line item

Value reported in the 2010 Account (ML)

Value reported in the 2011 Account (ML)

Additional information

11.20 Increase of other urban claims on water

23.12 Non-physical water distribution system increases – other lumped



Change in line item name and number