Perth
21.1 Surface water allocation announcements

Supporting Information

This line item refers to the total water allocation for all surface water supply in the Perth region not related to urban water systems or irrigation schemes. It includes surface water allocations to mining, industrial and agricultural sectors.

The volume recognised in the Statement of changes in water assets and water liabilities represents the volume of:

  • water announced for surface water allocation; and
  • new licences and other variations that were granted during the 2010–11 year.

The water supply licences are divided into licence entitlement purposes. The annual allocation announcement for each licence purpose for the 2010–11 year are given in the following table. 


Annual allocation announcement for each licence purpose for the 2010–11 year

Licence category

Announcement

(ML)

Agriculture

4,866

Commercial and institutional

90

Industry and power generation

18,172

Mining

18,918

Parks, gardens and recreation

195

Stock and domestic

250

Other

385

Total

42,876

 

Quantification Approach

Data Source

Department of Water: Water Resource Licensing database and licensee meter readings.

Provided by

Department of Water.

Method

Most of these licences are issued to licence holders for periods of generally between one and ten years, with an annual abstraction amount specified and with annual compliance arrangements in place.

The total surface water allocation announcement is assumed to equal 100% of the annual entitlement.

Assumptions, Limitations, Caveats and Approximations

Nil.

Uncertainty Information

There is no uncertainty associated with this value.

Comparative year

The following table presents substantive changes in the line item reported in this 2011 Account with the corresponding line item in the 2010 Account.

 

Comparative year information for line item 21.1

2011 Account line item

2010 Account line item

2011 Account volume for the 2009–10 year (ML)

2010 Account volume for the 2009–10 year (ML)

Change from the 2010 Account to the 2011 Account

21.1 Surface water allocation announcements

25.1.9.7 Allocation announcement on regulated flows–other lumped holders

43,189

43,189

Change in line item name and number