100% HRWS Seasonal Determination Reached in All Systems

Announcement Date: 1 Nov 2012
Next Announcement Due: 15 Nov 2012

Determination Data

Seasonal determinations for northern Victoria regulated river systems.

  High Reliability Water Share Change to High Reliability Water Share Low Reliability Water Share Comments
Murray 100% +5% 0% Not declared
Broken 100% 0% 16% -
Goulburn 100% 0% 0% Not declared
Campaspe 100% 0% 69% Not declared
Loddon 100% 0% 0% -
Bullarook Creek 100% 0% 100% -

Further Information

The Resource Manager for northern Victorian regulated water systems today announced an update to the seasonal determinations for the 2012/13 season.

The Murray system seasonal determination is 100% of high-reliability water shares (HRWS), an increase of 5%. The Broken system seasonal determination is 100% HRWS and 16% of low-reliability water shares (LRWS), an increase of 16% LRWS. Campaspe system customers have a seasonal determination of 100% HRWS and a seasonal determination of 69% of LRWS, an increase of 1% LRWS.

The seasonal determination in the Goulburn and Loddon systems remains unchanged at 100% HRWS. The Bullarook system seasonal determination also remains unchanged at 100% HRWS and 100% LRWS.

“Continuing inflows into the Murray and Broken systems over the past fortnight have made the seasonal determination increases announced today possible.” said Dr Mark Bailey, Resource Manager. “Now that the seasonal determination in the Murray system has reached 100% HRWS, the volume borrowed from the Barmah Forest entitlement will be repaid. This borrow helped the Murray achieve the 100% seasonal determination. Water will be reserved for the 2013/14 season after the volume borrowed has been repaid.”

Storages in the Murray, Goulburn and Campaspe systems are all above 96% of capacity. Water held in spillable water accounts in these systems is subject to physical spills from the storage or pre-releases. The risk of spill from Dartmouth Reservoir, Lake Eildon and Lake Eppalock remains high. Pre-releases commenced from Dartmouth Reservoir on 26 October. The volume released will be treated as a spill if the water cannot be stored in Lake Hume. This will be confirmed in the 15 November update and a spill percentage will be processed if necessary.

Upcoming Resource Manager Announcements

  • The next assessment of the probability of spill in the Murray, Goulburn and Campaspe systems will be issued on Monday 12 November 2012.
  • As seasonal determinations to HWRS in all systems have reached 100%, seasonal determination updates will now be issued monthly. The next seasonal determination announcement will be issued on Thursday 15 November 2012 and on the 15th (or next business day) of each month thereafter.