13.6 Other surface water liability decreases

Supporting information

The surface water liability decrease on banked environmental water managed by the Sydney Catchment Authority in the Sydney region is 5,363 ML.

As releases of banked environmental water ceased from 1 July 2011 and the water accounted as remaining in the bank was deleted during the 2011–12 year, the adjustment and forfeiture on the surface water liability is equal to the water that remained in the bank.

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

Total forfeiture of other surface water liabilities in the 2011-12 year

Volume (ML)


5.6 Opening balance (as at 30 June 2011)



21.6 Other surface water liability



17.16 Other delivery of allocated water

less 13.6 Adjustment and forfeiture of surface water allocation 5,363


5.6 Closing balance (as at 30 June 2012)


Quantification approach

Data source

Sydney Catchment Authority and New South Wales Office of Water agreement; Sydney Catchment Authority database of daily requirements and releases; Sydeny Catchment Authority compliance reporting to the New South Wales Office of Water.

Provided by

Sydney Catchment Authority.


As the banked environmental water entitlement was deleted during the 2011–12 year, the total volume for this line item is equal to the volume remaining in the bank (5,363 ML).

Assumptions, limitations, caveats and approximations


Uncertainty information

Based on entitlement and diversion information provided by the Sydney Catchment Authority.