Ord
6.2 Groundwater allocation remaining – urban water system
Supporting information
The volume recognised in the water accounting statements (2,252 ML) represents the volume of groundwater allocation remaining for urban water supply licence entitlements in the Ord region at the end of the 2011–12 year.
The urban water supply licences relate to groundwater extraction from local bore fields for:
- Kununurra town supply
- Halls Creek town supply.
Quantification approach
Data source
Provided by
Method
The water supply licences for Kununurra and Halls Creek have a water management year that ends on 31 March. Therefore, the allocation remaining at the end of the 2011–12 year for the Ord region is the unused component of the annual allocation for these two urban licences.
The allocation remaining at 30 June 2012 was calculated as shown in the following table.
|
Account |
Volume (ML) |
|
Opening balance (at 30 June 2011) |
2,292 |
add |
22.2 Groundwater allocation announcement (on 1 April 2012) |
2,700 |
less |
18.12 Groundwater allocation extraction (up to 30 June 2012) |
1,842 |
less |
14.2 Adjustment and forfeiture of groundwater allocation (on 30 March 2012) |
898 |
|
Closing balance (at 30 June 2012) |
2,252 |
Assumptions, limitations, caveats and approximations
Uncertainty information
The uncertainty estimate was not quantified.