Water Week

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Murray Darling Armageddon: Ministers agree to drain and block 44 wetlands and build a new weir at Wellington

Posted by waterweek on 21 September 2007

Like the Mayan collapse, it appeared the Murray Darling Basin was in armageddon mode. The long-predicted climatic change appeared to have come early. The Declaration by the the three States, was released by the Prime Minister, who under the just-passed Contingency Planning Overview Report to First Ministers, 20 September 2007.

44 wetlands to die, with more to come: Plans were listed for the death of 44 wetlands with more to come “Senior officials will continue to review the extent to which further wetland disconnection for the purposes of contingency planning is recommended in the Murray System in 2007-08.

Without precedent: “We are facing a spring and summer on the Murray like no other since Hume Dam was completed in 1936,” Chief Executive Dr Wendy Craik AM said today. “The unprecedented combination of both low storage levels and low inflows will require us to operate outside our normal operating regime.”

The Overview Report to First Ministers said: “Disconnection of regulated wetlands to save water in the system continues in each State”:

• The NSW Government temporarily disconnected one regulated wetland (Tareena Billabong) in June 2007. At Euston Lakes evaporation savings will be achieved via lowering of the weir pool. This will have the same effect as disconnecting these wetlands.

• In South Australia, twenty-seven wetlands were closed in January 2007 and two additional wetlands (Ross and Jaeschke Lagoons) were disconnected in June 2007.

The Minister for the Environment and Water Resources determined on 24 August 2007 that the temporary disconnection of a further seven wetlands in South Australia does not need approval under the Environment Protection and Biodiversity Conservation Act (1999) (EPBC Act).

• The Murray-Darling Basin Commission has agreed to funding disconnection of six of these wetlands, including the provision of alternative water supplies for existing users;

• The Victorian Government has completed a preliminary assessment of potential wetlands for temporary disconnection.

Temporary weir near Wellington: After a referral by South Australia, the Australian Government Minister for the Environment and Water Resources has determined that the construction of a temporary weir near Wellington is a controlled action for the purposes of the EPBC Act. The temporary weir is to be assessed at the level of an Environmental Impact Statement. The South Australian Government will make an announcement regarding the weir during September 2007.


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