2019/20 seasonal determination update
The Resource Manager for northern Victoria today updated the 2019/20 seasonal determinations.
The Murray system moves from 52 per cent of high-reliability water shares (HRWS) to 56 per cent HRWS.
The Goulburn and Loddon systems increase from 63 per cent HRWS to 64 per cent HRWS.
The Campaspe system moves from 61 per cent HRWS to 63 per cent HRWS.
Seasonal determinations in the Broken system remain on 0 per cent HRWS.
The Bullarook system remains on 100 per cent HRWS and 100 per cent of low-reliability water shares (LRWS).
Resource Manager Mark Bailey said a range of factors influenced the improvements in water availability.
“Flows into the storages were slightly higher than forecast after rain in the first half of December,” said Dr Bailey. “The rain meant evaporation and river losses were lower than estimated, which further contributed to the increased seasonal determinations announced today.”
Resources in the Broken system remain insufficient for a seasonal determination. Dr Bailey said “The shortfall to announcing a positive seasonal determination has reduced to 1,900 megalitres and carryover commitments can be supplied throughout the water year.
“The latest Bureau of Meteorology seasonal outlooks show below-average rainfall across northern Victoria is likely to continue for the remainder of December and January,” Dr Bailey said.
Dr Bailey advised water users to consider available weather and climate information in conjunction with the seasonal determination outlooks when planning their water needs in 2019/20.
The seasonal determinations for northern Victorian water systems on Monday, December 16 are:
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 in the Murray system allows 200 GL of net trade from New South Wales to Victoria.
The Goulburn system’s inter-valley trade (IVT) account owes about 263 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 will continue through December and January. 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.
The Murray-Darling Basin Authority (MDBA) 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 MDBA website.
Upcoming Resource Manager announcements
- The next 2019/20 seasonal determination announcement will be released on Thursday January 2, 2020.