No change to 2018/19 seasonal determinations

Tuesday 15 January, 2019

The northern Victoria Resource Manager today updated 2018/19 seasonal determinations.

The Goulburn system and the Loddon system remain at 94 per cent high-reliability water shares (HRWS).

The seasonal determination in the Broken system remains at 32 per cent HRWS.

The Murray and Campaspe systems remain at 100 per cent HRWS and the Bullarook system remains at 100 per cent HRWS and 100 per cent of low‑reliability water shares (LRWS).

Resource Manager Andrew Shields said there was no improvement to water availability to enable seasonal determinations to increase.

“Conditions have been particularly hot and dry since the last assessment. Evaporation and flows into the major storages were close to our conservative estimates,” Mr Shields said.

Mr Shields noted the climate outlooks for rainfall favour slightly drier conditions.

“The latest Bureau of Meteorology seasonal outlook indicates below average rainfall is more likely during the January to March period,” he said.

Mr Shields urged water users to continue planning their water needs carefully. “Websites such as the Resource Manager (, the Victorian Water Register ( and the Murray-Darling Basin Authority ( provide information about water trends and availability, which can help users plan their use.”

Water System High-Reliability Water Share Low-Reliability Water Share
The seasonal determinations for northern Victorian water systems on Tuesday, January 15.
Murray 100% 0%
Broken 32% 0%
Goulburn 94% 0%
Campaspe 100% 0%
Loddon 94% 0%
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 Murray system below 50 per cent.

The current risk of spill limit allows 200 GL of net trade from New South Wales to Victoria.

The Goulburn system’s inter-valley trade (IVT) account owes about 200 GL to the Murray system. The Goulburn, Campaspe and Loddon systems can trade to the Victorian Murray system, New South Wales and South Australia while the total volume owed to the Murray system is less than 200 GL. Deliveries of Goulburn system IVT to support Murray system operations are planned to continue in January and February. Information on IVT deliveries is available on the Goulburn-Murray Water website.

The Goulburn, Campaspe and Loddon systems can trade from the Victorian Murray system, New South Wales and South Australia while the total volume owed to the Murray system is greater than zero.

Customers participating in the water trading market can monitor trade availability on the Water Register website, Water Register website. Additional information about how trade opportunities are calculated is available on the allocation trading page allocation trading page.

The Murray-Darling Basin Authority is restricting trade of water allocations from above the Barmah Choke to downstream of the Choke to protect the delivery of downstream water entitlements. Customers can monitor trading opportunities across the Barmah Choke on the Authority’s website Authority's website.

Upcoming Resource Manager announcements

  • The next 2018/19 seasonal determination announcement will be released on Friday February 1, 2019.
  • The first outlook for 2019/20 seasonal determinations will be provided on Friday February 15, 2019.