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6.1 Groundwater allocation remaining

Supporting information

The volume recognised in the water accounting statements (1,315 ML) represents the volume of groundwater allocation remaining for individual user licence entitlements at the end of the 2012–13 year.

The Department of Water administers approximately 40 separate licences in this category held by individual licensees. Licences primarily relate to water sourced from the Canning–Kimberley groundwater area for the mining and commercial sectors.

Quantification approach

Data source

Water Resource Licensing database.

Provided by

Department of Water.

Method

The allocation remaining at 30 June 2013 was calculated as shown in the following table.


Volume of groundwater allocation remaining at the start and end of the 2012–13 year

 

Account

Volume (ML)

 

Opening balance (at 1 July 2012)

1,320

add

22.1 Groundwater allocation announcements

11,480

less

18.11 Entitled extraction of allocated groundwater to users

 9,018

less

14.1 Adjustment and forfeiture of groundwater allocation

2,467

 

Closing balance (at 30 June 2013)

1,315


Generally, the water management year for individual users commences on the date the licence is issued. Consequently, there are a high number of individual water users whose licence anniversary falls outside the standard water year (1 July–30 June). As a result, the allocation remaining on 30 June 2013 is relatively high (more than 10% of the allocation announcement).

Assumptions, limitations, caveats and approximations

Nil.

Uncertainty information

The uncertainty estimate was not quantified.