Seasonal Determination - 15 November 2023

Thursday 15 August, 2024

Small seasonal determination increases

The Resource Manager for northern Victoria today updated the 2024/25 seasonal determinations.

The Murray system seasonal determination increases from 73 per cent of high-reliability water shares (HRWS) to 76 per cent HRWS. The Goulburn and Loddon systems increase from 89 per cent HRWS to 92 per cent.

In the Campaspe system, the low-reliability water shares (LRWS) seasonal determination increases from 13 per cent LRWS to 15 per cent LRWS. The Campaspe system also has 100 per cent HRWS.

The Broken system increases from 17 per cent HRWS to 20 per cent HRWS.

The Bullarook system remains unchanged at 0 per cent HRWS.

Resource Manager Mark Bailey said drier conditions in recent weeks meant there was little additional water to allocate.

“Flows into major storages have gradually declined since the last assessment,” he said.

“Those flows remain greater than our conservative estimates, which is the main factor in the seasonal determination increases announced today.

“Further rainfall that creates flows in the catchment areas and into the storages is needed before larger seasonal determination increases are possible.”

The seasonal determinations for northern Victorian water systems on Thursday, 15 August are:

Water System High-Reliability Water Share Low-Reliability Water Share
Murray 76% 0%
Broken 20% 0%
Goulburn 92% 0%
Campaspe 100% 15%
Loddon 92% 0%
Bullarook 0% 0%

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 Victoria’s share of both Hume and Dartmouth reservoirs below 50 per cent. As the risk of spill from Victoria’s share of Hume and Dartmouth is currently greater than 50 per cent, allocation trade from New South Wales to Victoria is not possible. The volume available for trade is updated monthly with each risk of spill announcement. 

Customers participating in the water trading market can monitor trade availability on the Water Register website

Customers can monitor trading opportunities from above the Barmah Choke to downstream of the Choke on the MDBA website

Upcoming Resource Manager Announcements

  • The next 2024/25 seasonal determination announcement will be released on Monday, 2 September 2024.
  • The risk of spill in the Murray, Goulburn and Campaspe systems will be updated on Tuesday, 10 September 2024.