Sydney
13.6 Other surface water liability decreases
Supporting Information
The liability decrease to the surface water store from the adjustment and forfeiture of a part of the allocation/claim is 0 ML.
Reconciliation of this line item is shown in the following table.
| Calculation |
Line item |
Volume (ML) |
|
5.6 Other surface water liability – opening balance |
9,795 |
add |
3,100 |
|
less |
7,532 |
|
less |
5.6 Other surface water liability – closing balance |
5,363 |
equals |
13.6 Adjustment and forfeiture of surface water allocation |
0 |
Quantification Approach
Data Source
Provided by
Method
The volume is the difference between the opening balance for banked environmental water (9,795 ML), the additional water added to the bank during 2010–11 (3,100 ML) and the release from Warragamba Dam (7,532 ML).
As the volume of allocation remaining is carried over to 2012, the forfeiture for 2011 is 0 ML.
Assumptions, Limitations, Caveats and Approximations
Water remaining at the end of the reporting period is carried over into 2012.
Uncertainty Information
Based on entitlement and diversion information provided by the SCA.
Diversions are based on measured data. Estimated uncertainty based on accuracy of stream gauging is +/– 10%.
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.
2011 Account line item |
2010 Account line item |
Value reported in the 2010 Account (ML) |
Value reported in the 2011 Account (ML) |
Additional information |
13.6 Other surface water liability decreases |
26.1.4 Adjustment and forfeiture of allocation on regulated flows – urban water access entitlement |
Not stated |
0 |
Prior period error: This volume was not accounted for in the 2010 Account. However this line item is required to reconcile the SCA banked environmental flow volume. |