Adelaide
12.12 Increase of irrigation scheme inter-region claim on water

Supporting Information

During the 2010–11 year the volume of water allocated to Baroosa Infrastructure Limited (BIL) under their River Murray Class 3a water access entitlement (WAE) increased by 3,850 ML. This volume included:

  • 3,009 ML increase in the volume of water allocated to BIL, based on the number of shares in the consumptive pool held in the 2010–11 year and the water allocation rate, as announced by the South Australian Minister for the Sustainability, Environment and Conservation
  • 841 ML increase in BIL's allocation volume due to an allocation trade.

For more information on the entitlement see line item 4.2 Irrigation scheme inter-region claim on water.

Quantification Approach

Data Source

South Australian Department for Water: Water Information and Licence Management Administration (WILMA) database; South Australian Government Gazette.

Provided by

Bureau of Meteorology and South Australian Department for Water.

Method

BIL operates the only irrigation scheme in the Adelaide region that imports water. At the start of the 2010–11 year, BIL had a WAE on the River Murray Prescribed Watercourse of 4,498,494 shares.

Allocation announcements: During the 2010–11 year the South Australian Government made seven incremental announcements notifying the volume of water available for allocation from the River Murray consumptive pool. These announcements were published in the South Australian Government Gazette. The allocations reached a maximum water allocation rate of 0.67 kL/share.

WAE trades and leases: BIL's WAE balance was reduced from 4,498,494 to 4,396,494 shares as a result of trades and leases. A trade and/or lease does not directly represent a volume of water that can be abstracted; rather it is a change in the share of the consumptive pool. The allocation balance is adjusted according to the WAE balance when an allocation announcement is made. If no allocation announcement is made after a trade or lease, there is no change to the allocation balance.

Allocation trades: During the 2010–11 year BIL received an allocation credit of 841 ML as a result of one trade. Allocation trades change the actual authorisations to take, irrespective of the number of shares. 

BIL's starting share balance, allocation announcements, trades to and from BIL involving shares and allocations are summarised in the following table.

Transactions to BIL's inter-region claim to River Murray water
Approval date Description WAE transaction (shares) WAE balance (shares) Transaction to the allocation balance (ML) Allocation balance (ML)
1 July 2010
Allocation carryover – opening balance**   4,498,494 2,277 2,277
1 July 2010 Allocation announcement +0.21 kL/share – Class 3a#   4,498,494 945 3,222
15 July 2010 Allocation announcement +0.03 kL/share – Class 3a#   4,498,494 135 3,357
2 August 2010
Allocation announcement +0.07 kL/share – Class 3a#   4,498,494 314 3,671
16 August 2010
Allocation announcement +0.03 kL/share – Class 3a#   4,498,494 135 3,806
1 September 2010
Allocation announcement  +0.07 kL/share – Class 3a#   4,498,494 314 4,120
8 September 2010 Transfer out WAE lease – Class 3a (Debit) (12,000) 4,486,494   4,120
15 September 2010 Allocation announcement +0.22 kL/share – Class 3a#   4,486,494 987 5,107
1 October 2010 Allocation announcement +0.04 kL/share – Class 3a#   4,486,494 179 5,286
8 December 2010
Transfer in allocation credit#   4,486,494 841 6,127
25 March 2011
Transfer out WAE trade – Class 3a (Debit) (100,000) 4,386,494   6,127
17 May 2011
Transfer out allocation Debit##   4,386,494 (1,000) 5,127
24 June 2011
Transfer in WAE – Class 3a (Credit) 10,000 4,396,494   5,127
30 June 2011
Delivery of water under WAE*   4,396,494 (2,301) 2,826
30 June 2011
Forfeiture of allocation##   4,396,494 (2,826) 0
30 June 2011
Allocation carryover – closing balance**   4,396,494   0

 ** this volume is reported at line item 4.2 Irrigation scheme inter-region claim on water

  * this volume is reported at line item 12.6 Delivery of water to irrigation scheme under inter-region agreement

   # this volume is reported at line item 12.12 Increase of irrigation scheme inter-region claim

 ## this volume is reported at line item 20.9 Decrease of irrigation scheme inter-region claim on water

Assumptions, Limitations, Caveats and Approximations

  • The volume reported at this line item only represents BIL's Class 3a entitlement to River Murray water and does not represent the increase in allocation volume for individual Class 3a licence holders within the Adelaide region.
  • This volume reported in this line item includes increases due to allocation trade plus WAE trades and leases.

Uncertainty Information

The uncertainty estimate was not quantified.

Comparative year

This line item is new to the 2011 Account due to the inclusion of a separate irrigation scheme store. The corresponding volume for the 2010 Account was not restated as this information was not available.