Ord
5.2 Surface water allocation remaining – urban water system
Supporting information
The volume recognised in the water accounting statements (670 ML) represents the volume of surface water allocation remaining for urban water supply licence entitlements in the Ord region at the end of the 2012–13 year.
The urban water supply licences relate to the following surface water resources:
- Moochalabra Dam for Wyndham town supply
- Ord River channel for water supply to Lake Argyle Village.
Quantification approach
Data source
Provided by
Method
The water supply licences for Wyndham and Lake Argyle Village have a water management year that ends on 31 March. Therefore, the allocation remaining at the end of the 2012–13 year for the Ord region is the unused component of the annual allocation for these two urban licences.
The allocation remaining at 30 June 2013 was calculated as shown in the following table.
|
Account |
Volume (ML) |
|
Opening balance (at 1 July 2012) |
670 |
add |
21.2 Surface water allocation announcements (on 1 April 2013) |
775 |
less |
17.12 Entitled diversion of allocated surface water (up to 30 June 2013) |
427 |
less |
13.2 Adjustment and forfeiture of surface water allocation (on 31 March 2013) |
348 |
|
Closing balance (at 30 June 2013) |
670 |
Assumptions, limitations, caveats and approximations
Uncertainty information
The uncertainty estimate was not quantified.