Perth
21.2 Surface water allocation announcements – urban water system
Supporting information
This line item volume (248,117 ML) represents the total water allocation for surface water supply to the urban water system in the Perth region during the 2012–13 year.
The annual allocation for each surface water resource for the 2012–13 year is given in the following table.
Surface water resource |
Allocation (ML) |
Storage |
|
Canning (and Araluen) |
37,700 |
Churchman Brook |
3,700 |
Harvey |
0 |
North Dandalup |
22,200 |
Samson Brook |
16,300 |
Serpentine Main and Serpentine Pipehead |
53,800 |
South Dandalup (and Conjurunup) |
32,900 |
Stirling |
56,310 |
| Victoria |
4,300 |
| Wungong |
20,600 |
| Other |
|
Murray River and tributaries (Dwellingup) |
167 |
Murray River and tributaries (Williams) |
140 |
| Total |
248,117 |
Quantification approach
Data source
Provided by
Method
The Water Corporation manages the urban water system, which is subject to licence agreements for abstraction of water from the surface water storages. One of the conditions of the licence agreement is that the maximum amount of abstraction for each year is announced by the Minister for Water on an annual basis. The announced allocation is made after a review by the Department of Water of storage water levels in the Perth region in October of the reporting year.
The total surface water allocation announcement is assumed to equal 100% of the annual entitlement.
Assumptions, limitations, caveats and approximations
Uncertainty information
There is no uncertainty associated with this value.