In the only other change announced by the northern Victoria resource manager on Friday, September 1, the Campaspe system moves from 63 per cent of low-reliability water shares to 64 per cent LRWS.
Campaspe remains at 100 per cent HRWS, as do the Victorian Murray, Goulburn, Loddon and Bullarook systems.
The only systems with LRWS allocations are Campaspe and Bullarook (100 per cent).
Resource manager Mark Bailey said there had been little change to water availability since the last update.
“Flows into the major storages have been steady in recent weeks,” Dr Bailey said.
“Availability in the Broken system has increased because of the steady flows and decreasing loss commitments.
“The carryover limits in the Broken system have also contributed to the large improvement.”
Releases to manage storage levels at Lake Hume and Lake Eppalock continued through August.
“About 500 megalitres will be deducted from Campaspe spillable water accounts today [September 1], which is four per cent of the overall volume,” Dr Bailey said.
“The volume deducted from Murray spillable water accounts will be confirmed in the September 15 seasonal determination update.
“There are no deductions from Goulburn spillable water accounts with today’s update.
“The shortfall to announcing seasonal determinations for low-reliability water shares in the Goulburn and Loddon systems is about 170 gigalitres.
“The shortfall in the Murray system will be confirmed once the remaining 112 gigalitres borrowed from the Barmah-Millewa Environmental Water Allocation at the start of the water year is fully repaid.”
Trading opportunities
Allocation trade from NSW to Victoria is limited to the lesser of a net annual volume of 200 Gl or a volume that keeps the risk of spill in Victoria’s share of both the Hume and Dartmouth reservoirs below 50 per cent.
As Victoria’s share of Hume and Dartmouth is close to full, trade from NSW to Victoria is not possible.
The volume available for trade is updated with each risk of spill announcement.
Customers participating in the water trading market can monitor trade availability on the Water Register website.
The Murray-Darling Basin Authority said trading of water allocations from above the Barmah Choke to downstream of the choke was restricted to protect the delivery of downstream water entitlements.
Customers can monitor trading opportunities across the Barmah Choke on the MDBA website.
The risk of spill in the Murray, Goulburn and Campaspe systems will be updated on Monday, September 11.
The next 2023-24 seasonal determination announcement will be released on Friday, September 15.
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