Seasonal determinations update

Monday 15 January, 2024

The Resource Manager for northern Victoria today updated the 2023/24 seasonal determinations.

Seasonal determinations in the Murray system increases from 100 per cent of high-reliability water shares (HRWS) and 16 per cent of low-reliability water shares (LRWS) to 100 per cent HRWS and 25 per cent LRWS.

The Goulburn and Loddon systems move from 100 per cent HRWS and 46 per cent LRWS to 100 per cent HRWS and 67 per cent LRWS.

Seasonal determinations in the Broken, Campaspe and Bullarook systems remain unchanged.

Resource Manager Andrew Shields said wetter conditions had increased the resource available for allocation.

“Rainfall in late December and early January has increased resource availability in the Goulburn system, prompting the seasonal determination improvements announced today,” Mr Shields said.

“The resumption of releases to manage levels in Lake Eildon also contributed,” Mr Shields added. “About 33,000 ML has been released from Lake Eildon to date, which is about 9 per cent of the volume held in spillable water accounts in the Goulburn system.

“Releases to manage storage levels are continuing and further deductions from Goulburn spillable water accounts will occur with the February seasonal determination update.

Mr Shields also confirmed Lake Eppalock had refilled to capacity, affecting spillable water accounts in the Campaspe system.

“Due to the spills from Lake Eppalock, around 10,500 ML will be deducted from Campaspe spillable water accounts. This represents about 54 per cent of the accounts’ volume.”

The seasonal determinations for northern Victorian water systems on Monday, January 15 are:

Water System High-Reliability Water Share Low-Reliability Water Share
Murray 100% 25%
Broken 100% 100%
Goulburn 100% 67%
Campaspe 100% 100%
Loddon 100% 67%
Bullarook 100% 100%

Trading Opportunities

Allocation trade from New South Wales 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 the Victoria’s share of both Hume and Dartmouth reservoirs below 50 per cent. The 200 GL of net trade from New South Wales to Victoria remains available. 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 Victorian Water Register website

The Murray-Darling Basin Authority (MDBA) has announced that trading of water allocations from above the Barmah Choke to downstream of the Choke is restricted to protect the delivery of downstream water entitlements. Customers can monitor trading opportunities across the Barmah Choke on the MDBA website

Upcoming Resource Manager Announcements

  • The risk of spill in the Goulburn and Campaspe systems will be updated on Monday February 12, 2024.
  • The next 2023/24 seasonal determination announcement will be released on Thursday February 15, 2024.