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South East Queensland

                                                                                                   

23.6 Allocation announcement on regulated flows — high security, urban holder

                             

Supporting information   


The table below shows high-security allocations by water supply scheme (WSS) and water resource plan (WRP) area held by urban utilities. High-security allocations were 100% in 2009-10.


High-security allocations by water supply scheme and water resource plan area held by urban utilities

      Water Resource Plan (WRP) area
Water Supply Scheme (WSS) Volume (ML)
Gold Coast Nerang 76,295
TOTAL Gold Coast WRP area 76,295
Logan Basin Logan River 8,910
TOTAL Logan Basin WRP area 8,910
Moreton Central Brisbane and Stanley 278,725
Pine Valley 59,000
TOTAL Moreton WRP area 337,725
Total SEQ region 422,930
 

For the purpose of the National Water Account 2010, the high-security urban holders class only includes the SEQ Water Grid Manager entitlement allocations, as they have been identified as the urban holder of high-security entitlements in the resource operation plans (ROPs). Other organisations may hold high-security entitlements for some form of urban use, but, as urban use is not identified on entitlements, these could not readily be identified. For this reason, a small number of entitlements that may fall into this category are included in line item 25.1.97 Allocation announcement on regulated flow – other lumped holder.

In Queensland, entitlements and allocations do not have intended use as an attribute, and all metered abstractions do not have entitlement priority or use as attributes. Urban holders of high-security entitlements were individually determined by obtaining all high-security entitlement volumes from the Moreton, Logan Basin and Gold Coast ROPs Schedule of Water Allocations listed for the SEQ Water Grid Manager.

The values provided by the Queensland Department of Environment and Resource Management (DERM) were  modified by removing the high-security urban holder component.

The table below shows the surface water allocation  carryover reconciliation:

Surface water allocation carryover reconciliation for year ending 30 June 2010
Allocation category Opening balance (ML) Announcement (ML) Allocation diversion (ML) Forfeiture (ML) Closing balance (ML)
High-security urban 0 422,930 175,727 247,203 0
High-security other 0 20,860 20,324 64,682 0
General-security other 4,534 71,288 11,676

 

Quantification approach   


Data source

DERM, ROPs and announced  allocation data.

 

Data provider

DERM.

 

Method

Regulated flow – high-security urban holder entitlements were defined as high-priority group entitlements held by the SEQ Water Grid Manager.

The volumes of SEQ Water Grid Manager high-priority entitlement were obtained from the Moreton, Logan Basin and Gold Coast ROPs Schedule of Water Allocations (Queensland supplemented water allocations are equivalent to regulated entitlements of the National Water Account 2010).

Announced allocation of 100% was given for all SEQ Water Grid Manager entitlements for the 2009–10 year, making the allocation  announcements equal to the nominal entitlement volume.

 

Uncertainty

Certain.

 

Approximations,  assumptions, caveats and limitations

None.