South East Queensland

                                                                                                   

25.1.9.7 Allocation announcement on regulated flows — other lumped holders

                             

Supporting information   


The tables below show the high, general and low security allocations by water supply scheme (WSS) and water resource plan (WRP) area and the allocation announcement percentages.

A conservative allocation announcement of 27% of entitlement was made in the Lower Lockyer WSS at the start of the water year (1 April 2009), due to a low volume of water. During the water year, greater than expected inflows into the WSS enabled additional allocation announcements to be made. One of these occurred before the National Water Account 2010 reporting period (1 July 2009 – 30 June 2010) on 1 June 2009 (48%). Two additional allocation announcements occurred during the reporting period, on 1 September 2009 (71%) and 11 March 2010 (100%). These additional amounts, combined with the 100% allocation announcement of 11,278 ML (medium) and 1,500 ML (medium distribution loss) at the start of the next water year (1 April 2010), make up the total allocation announcement for the National Water Account 2010 reporting period of 17,143 ML (medium) and 2,280 ML (medium distribution loss). Further information on the Lower Lockyer WSS water year and these announcements can be found in line item 8.1.9.7 Allocation on regulated flows remaining – other lumped holders.

Interim water allocations are provided for Central Lockyer, Warrill and Lower Lockyer under interim resource operation licence (IROL) (Central Lockyer Valley WSS), July 2008; IROL (Warrill Valley WSS), amended August 2008; and IROL (Lower Lockyer Valley WSS), July 2008.

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

 

         
Allocations for high-, general- and low-security other lumped holder (Volume in ML) 
Water Resource Plan (WRP) area Water Supply Scheme (WSS) National Water Account 2010 Security Type Total
High General or Low Security
Queensland Department of Environment and Resource Management (DERM) Priority Class
High Class A or High (Non-Urban Holder) High Distribution Loss High A High B Medium Medium Distribution Loss Risk A Risk A and B
Gold Coast Nerang 5
 - - - - - - - 5
100%              
Total Gold Coast WRP area 5 - - - - - - - 5
Logan Basin Logan River 946 - - - 13,557 - - - 14,503
100%       100%      
Total Logan Basin WRP area 946 - - - 13,557 - - - 14,503
Moreton Central Lockyer - 184 - - 3,507 - 395 3,115 7,201
  100%     100%   100% 100%
Cressbrook 10,000 - - - - - - - 10,000
100%              
Lower Lockyer - - - - 17,143 2,280 - - 19,423
        100% 100%    
Pine Valley - - - - - - - - 0
               
Central Brisbane and Stanley 275 - - - 7,041 - - - 7,316
100%       100%      
Warril Valley - - 890 8,560 20,536 3,714 - - 33,700
    100% 100% 100% 100%    
Total Moreton WRP area 10,275 184 890 8,560 48,227 5,994 395 3,115 77,640
Total SEQ Region 11,226 184 890 8,560 61,784 5,994 395 3,115 92,148
20,860 71,288

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. All entitlements defined as high security, or general and low security, for the purpose of the National Water Account 2010, have therefore been included in the ‘other’ category.

For the purpose of the National Water Account 2010, the high-security entitlement – other lumped holders class does not include the SEQ Water Grid Manager entitlement allocations, as they have been identified as an urban holder. For further information on urban high-security entitlement allocation announcements, please refer to line item 25.1.2.4 Allocation announcement on regulated flow – high-security urban holder.

For the purpose of the National Water Account 2010, the high-security other lumped holder entitlement class includes the following Queensland water priority types, where the holder is not the SEQ Water Grid Manager:

  • high class A
  • high
  • high distribution loss
  • high A
  • high B.

For the purpose of the National Water Account 2010, the general and low security entitlement allocation class includes the following Queensland water priority types:

  • medium
  • medium distribution loss
  • risk A
  • risk B.

Further information on the Queensland water priority types can be found in the relevant ROPs.

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

  • WSS operators and licence holders: Seqwater and  Toowoomba Regional Council
  • DERM, ROP and IROL

 

Data provider

DERM.

 

Method

The volume was calculated by  multiplying the nominal allocation volume (equivalent to entitlements in the  National Water Account 2010) stated in the ROP or IROL by the announced  allocation percentage. Data were then sorted into water security type and WSS.  The water security types were then assigned to the National Water Account 2010  classifications of high security – other lumped holder, or general and low  security – other lumped holder. Allocations were also separated into WRP area  based on the WSS.

 

Uncertainty

Derived from measured data.  DERM reliability and accuracy rating is A2 (see glossary).

 

Approximations,  assumptions, caveats and limitations

None.