12.12 Increase of irrigation scheme inter-region claim on water

Supporting information

During the 2011–12 year the volume of River Murray water claimed by Baroosa Infrastructure Limited (BIL) increased by 6,653 ML. This volume included:

  • 4,362 ML allocated on the River Murray Class 3a water access entitlement (WAE) owned or held on lease by BIL on the SA Murray
  • 500 ML allocated on SA Murray WAE owned by Summit Water Holdings Pty Ltd and traded to BIL as part of a long-term agreement between both parties
  • 841 ML allocated on high security New South Wales' Murray WAE owned by Summit Water Holdings Pty Ltd and traded to BIL as part of a long-term agreement between both parties
  • 950 ML allocated on Victoria's Murray WAE traded to BIL from a Victorian irrigator.

During the 2011–12 year, the allocation announcement was 100 % on the SA Murray WAE and 95 % on the NSW Murray WAE.

During the 2011–12 year, the irrigation scheme's customers also leased 6 ML of the River Murray Class 3a WAE to BIL, thus increasing the number of Class 3a shares it held. This transaction did not increase the volume of water claimed by BIL as no subsequent allocation was traded–in during the 2011–12 year.  

BIL did not purchase any WAE during the 2011–12 year (no increase of WAE owned).  

For more information on the WAE on which water allocations were announced, see line item 4.2 Irrigation scheme inter-region claim on water.

Quantification approach

Data source

Water Information Licence Management and Administration (WILMA) database.

Provided by

South Australian Department of Environment Water and Natural Resources Management (DEWNR).


An extract from the WILMA database provided the volume of water allocated to BIL under the WAE that it owned or leased. On 1 July 2011 the Minister announced 1.0000 kL/share (100 % allocation) for River Murray WAE Class 3a, which corresponded to 4,362 ML.

A WILMA database extract also provided the value of the water allocations traded–in by BIL during the 2011–12 year.

A trade (perpetual transfer) and/or lease of WAE 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 WAE trade or lease, there is no change to the allocation balance.

Allocation trades change the actual authorisations to abstract (take) water, irrespective of the number of shares owned or held on lease.

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.
  • Only the transactions approved during the 2011–12 year are reported.

Uncertainty information

The uncertainty estimate was not quantified.