South East Queensland
21.1 Surface water allocation announcements

Supporting information
- a. Overall
- b. Non-urban surface water allocation remaining – reconciliation
Quantification approach

Supporting information

a. Overall

The volumetric value for the line item at the end of the 2012–13 year was 73,304 ML.

This line item consists of all surface water allocation announcements with the exception of announcements for entitlements held by urban utilities.

The following table shows the allocation announcements for various priority groups by water supply scheme (WSS) and water resource plan (WRP) area. Announced allocations for all the WSSs at the start of the water year were 100%. Once announced allocation reaches 100% it cannot be decreased in the water year.

Interim water allocations are provided for the Central Lockyer, Warril Valley, and Lower Lockyer WSSs under interim resource operation licences (IROLs) dated July 2008, August 2009, and July 2008 respectively.

Priority classes can be found in the relevant resource operations plans (ROPs).

Non-urban surface water allocation announcements
Water resource plan (WRP) area	Water supply scheme (WSS)	Water resource plan priority group								Total
Water resource plan (WRP) area	Water supply scheme (WSS)	High class A or High (ML)	High distribution loss (ML)	High A (ML)	High B (ML)	Medium (ML)	Medium distribution loss (ML)	Risk A (ML)	Risk A and B (ML)	Total
Gold Coast	Nerang	5	0	0	0	0	0	0	0	5
Gold Coast	Total Gold Coast WRP area	5	0	0	0	0	0	0	0	5
Logan Basin	Logan River	946	0	0	0	13,554	0	0	0	14,500
Logan Basin	Total Logan Basin WRP area	946	0	0	0	13,554	0	0	0	14,500
Moreton	Central Brisbane River and Stanley River	275	0	0	0	7,041	0	0	0	7,316
	Central Lockyer	0	184	0	0	3,507	0	395	3,115	7,201
	Cressbrook Creek¹	0	0	0	0	0	0	0	0	0
	Lower Lockyer Valley	0	0	0	0	11,278	1,500	0	0	12,778
	Pine Valleys	0	0	0	0	0	0	0	0	0
	Warrill Valley	0	0	0	7,254	20,536	3,714	0	0	31,504
	Total Moreton WRP area	275	184	0	7,254	42,362	5,214	395	3,115	58,799
Total South East Queensland (SEQ) region		1,226	184	0	7,254	55,916	5,214	395	3,115	73,304

¹Cressbrook Creek WSS allocation announcement was shown as 0 ML because its announcement has been included in line item 21.2 Surface water allocation announcements – urban system.

b. Non-urban surface water allocation remaining – reconciliation

The following table shows the non-urban surface water allocation reconciliation. A relatively lower carryover volume at the beginning of the 2012–13 year has resulted in a lower forfeiture of surface water allocation compared to that reported for the 2012 Account.

Non-urban surface water allocation reconciliation
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	Announcement (ML)	Allocation diversion	Adjustment and forfeiture (ML)	Closing balance (ML)
		(ML)	Announcement (ML)	(ML)	Adjustment and forfeiture (ML)	Closing balance (ML)
Gold Coast	Nerang	0	5	5	0	0
Gold Coast	Total Gold Coast WRP area	0	5	5	0	0
Logan Basin	Logan River	0	14,500	1,888	12,612	0
Logan Basin	Total Logan Basin WRP area	0	14,500	1,888	12,612	0
Moreton	Central Brisbane River and Stanley River	0	7,316	0	7,316	0
	Central Lockyer	0	7,201	433	6,768	0
	Cressbrook Creek¹	0	0	0	0	0
	Lower Lockyer Valley	12,153	12,778	997	11,781	12,153
	Pine Valleys	0	0	0	0	0
	Warrill Valley	0	31,504	2,663	28,841	0
	Total Moreton WRP area	12,153	58,799	4,093	54,706	12,153
Total South East Queensland (SEQ) region		12,153	73,304	5,986	67,318	12,153

¹Cressbrook Creek WSS is used to supply the north and north-western townships of Toowoomba Regional Council region as well as Toowoomba City.

Quantification approach

Data source

Seqwater: Water supply scheme operator and resource operation licence holder.

Provided by

Seqwater.

Method

The volume was calculated by multiplying the nominal allocation volume (equivalent to entitlements in the 2013 Account) stated in the resource operations plan (ROP) or interim resource operations plan (IROL) by the announced allocation percentage. Data were then sorted into water security type and water supply scheme (WSS). Urban holders of supplementary licences were then removed individually from the data and included in line item 21.2 Surface water allocation announcements – urban system.

Assumptions, limitations, caveats and approximations

None.

Uncertainty information

Derived from measured data.

South East Queensland21.1 Surface water allocation announcements