Ord

The volume recognised in the water accounting statements (1,030 ML) represents the volume of water allocated during 2009–10 for groundwater entitlements for water supply to Kununurra and Halls Creek that was not extracted during 2009–10, and is therefore forfeited.The volume disclosed in the water accounting statements (1,030 ML) represents the volume of water allocated to groundwater entitlements for Urban holder water supply to Kununurra and Halls Creek that was not extracted during the 2009–10 reporting period, and is therefore forfeited.

Data source

Western Australian Department of Water: Water Resource Licensing (WRL) database and the Water Information (WIN) database.

Data provider

Western Australian Department of Water.

Method

Any unused allocation cannot be carried over to a subsequent licence year. The portion of a groundwater entitlement that has not been abstracted at the end of the reporting period is forfeited. The forfeiture is calculated as:

Line item 27.1.3.4 Groundwater allocation—urban holder

minus

Line item 16.5.3.4 Groundwater allocation extraction—urban holder.

Entitlements that are terminated during the reporting period are also considered to be forfeitures.

Uncertainty

Ungraded.

Assumptions, approximations and caveats/limitations

Forfeiture is calculated based on available extraction data. Where the extraction data are estimated, the forfeiture is subject to the same assumptions and limitations of the extraction data. Refer to Line item 16.5.3.4 Groundwater allocation extraction—urban holder.