South East Queensland
13.1 Adjustment and forfeiture of surface water allocation

The following table details the calculation of the adjustment and forfeiture of surface water allocation, where the allocation is not held by urban utilities.

Volume of adjustment and forfeiture of non-urban surface water allocations

Calculation	Line item	Moreton Water Resource Plan (WRP) area (ML)	Logan Basin WRP area (ML)	Gold Coast WRP area (ML)	Total SEQ region (ML)
	5.1 Surface water allocation remaining (as at 1 July 2010)	11,676	0	0	11,676
add	21.1 Surface water allocation announcements	58,799	14,500	5	73,304
less	17.11 Surface water allocation diversion	4,012	1,888	5	5,905
less	5.1 Surface water allocation remaining (as at 30 June 2011)	12,234	0	0	12,234
equals	13.1 Adjustment and forfeiture of surface water allocation	54,229	12,612	0	66,841

Lower Lockyer Water Supply Scheme (WSS) water year is from 1 April to 31 March. All unused Lower Lockyer WSS allocations at 30 June 2011 were not regarded as forfeiture but rather as allocation remaining at the end of the National Water Account 2010–11 year (1 July 2010 to 30 June 2011). The volume reported represents the unused water allocation that remains available for use until 31 March 2012. Further information can be found in line item 5.1 Surface water allocation remaining.

This line item includes forfeiture, and adjustments on allocations. In some WSSs, allocation announcements were made for distribution loss entitlements (Central Lockyer WSS, Lower Lockyer WSS and Warrill Valley WSS). These allocations cover conveyance losses from delivering water for other allocations. All distribution loss allocation usage has been included as adjustments in this line item as use is within stream and can not be considered a diversion.

The following table shows the  non-urban surface water allocation reconciliation. Due to the very wet year, demand was lower than in previous years and combined with the 100% allocation announcements, this has resulted in a higher forfeiture of surface water allocation.

Non-urban surface water allocation reconciliation table

Water resource plan (WRP) area	Water supply scheme (WSS)	Line item 5.1	Line item 21.1	Line item 17.11	Line item 13.1	Line item 5.1
		Opening balance (ML)	Announcement (ML)	Allocation diversion (ML)	Adjustment and forfeiture (ML)	Closing balance (ML)
Gold Coast	Nerang	0	5	5	0	0
	Total Gold Coast WRP area	0	5	5	0	0
Logan Basin	Logan River	0	14,500	1,888	12,612	0
	Total Logan Basin WRP area	0	14,500	1,888	12,612	0
Moreton	Central Brisbane River and Stanley River	0	7,316	NA	7,316	0
	Central Lockyer	0	7,201	433	6,768	0
	Cressbrook Creek	0	0	0	0	0
	Lower Lockyer Valley	11,676	12,778	916	11,304	12,234
	Pine Valleys	0	0	0	0	0
	Warrill Valley	0	31,504	2,663	28,841	0
	Total Moreton WRP area	11,676	58,799	4,012	54,229	12,234
Total SEQ region		11,676	73,304	5,905	66,841	12,234

Queensland Department of Environment and Resource Management (DERM), resource operation plans (ROPs) and announced allocations WSS operators and licence holders: Seqwater and Toowoomba Regional Council DERM ROP and interim resource operation licence (IROL) DERM, Water Entitlement Register Database and Water Management System.

DERM and Bureau of Meteorology.

The adjustment and forfeiture of surface water allocation was derived using the calculation in the following table.

Calculation method for adjustment and forfeiture of surface water allocation

Calculation	Line item
	5.1 Surface water allocation remaining (as at 1 June 2010)
add	21.1 Surface water allocation announcements
less	17.11 Surface water allocation diversion
less	5.1 Surface water allocation remaining (as at 30 June 2011)
equals	13.1 Adjustment and forfeiture of surface water allocation (as at 30 June 2011)

 

Please refer to the specific line item components used in the calculation for the individual assumptions.

Please refer to the specific line items used in the calculation of this line item for specific assumptions, approximations, caveats/limitations.

• line item 5.1 Surface water allocation remaining
• line item 17.11 Surface water allocation diversion
• line item 21.1 Surface water allocation announcements.

There was no uncertainty associated with this value.

This line item corresponds to line item 26.1.9.7 Adjustment and forfeiture of allocation on regulated flows – other lumped holder reported in the 2010 Account. In the 2010 Account this included a component for Cressbrook Creek WSS adjustment and forfeiture. In the 2011 Account Cressbrook Creek has been transferred to line item 13.2 Adjustment and forfeiture of surface water allocations – urban water system as Cressbrook Creek is used to provide the town of Toowoomba with urban water.

The following table compares the value at 30 June 2010 reported in the 2011 Account with the corresponding value reported in the 2010 Account.

Comparative year information – line item 13.1 Adjustment and forfeiture of surface water allocations

2011 Account line item	2010 Account line item	Volume reported in the 2010 Account (ML)	Prior period error correction (ML)	Volume difference due to scope change (ML)	Restated volume reported in the 2011 Account (ML)	Additional information
13.1 Adjustment and forfeiture of surface water allocation	26.1.9.7 Adjustment and forfeiture of allocation on regulated flows – other lumped holder	64,682	0	–12,199	52,483	Impact on adjustment of line item 21.1 Surface water allocation announcements