South East Queensland
11.2 Entitled diversion of non–allocated surface water to urban water system
Supporting information
The volumetric value for the line item at the end of the 2011–12 year was 4,383 ML.
This line item consists of diversions from surface water based on unsupplemented entitlements held by urban utilities and the SEQ Water Grid Manager (Seqwater since January 2013). These diversions may be to water treatment plants (WTP) that supply the South East Queensland (SEQ) water grid or off-grid.
| Water resource plan (WRP) area | SEQ water grid |
Water treatment plant |
Volume |
(ML) |
|||
| Gold Coast | Total Gold Coast WRP area |
0 |
|
| Logan Basin | On-grid | Capalaba | 2,928 |
| Off-grid | Canungra | 88 |
|
| Total Logan Basin WRP area | 3,016 |
||
| Moreton | On-grid | Caboolture | 1,080 |
| Enoggera | 0 |
||
| Off-grid | Blackbutt and Bernarkin | 85 |
|
| Lockyer | – |
||
| Preston | – |
||
| Somerset Dam Recreation | 0 |
||
| Warrill View | 99 |
||
| Yarraman | 103 |
||
| Total Moreton WRP area | 1,367 |
||
| Total SEQ region | 4,383 |
||
– = data not available
Quantification approach
Data source
Seqwater WaterHub database: this information was previously provided by DERM but commencing with the 2012 Account, it has since been provided by Seqwater.
Toowoomba regional Council
South Burnett regional Council
Seqwater supplemented / unsupplemented WTP list.
Provided by
Bureau of Meteorology.
Method
Metered diversion to WTP or output from WTP data was obtained from Department of Energy and Water Supply (DEWS) and respective local government councils. Wherever possible, available diversion data was used in preference to WTP output data. WTP were selected where the source was surface water and the entitlement was unsupplemented. WTPs were then separated in to the water resource plan (WRP) areas and on-grid (form part of the SEQ Water Grid) and off-grid.
Assumptions, limitations, caveats and approximations
Communities with a population of less than 50 were not captured and reported. Off-grid communities within the Gold Coast WRP area were therefore not captured.
Uncertainty information
The uncertainty estimate was not quantified.
Comparative year
This line item corresponds to line item '11.2 Non-allocated diversion of surface water' reported in the 2011 Account.