Goulburn inter-valley trade and Murray shortfall risks

Rating: 2.5/5. From 2 votes.
Please wait...

7 December 2021



New interim policy arrangements have been implemented for Goulburn inter-valley trade (IVT) during 2021-22. These new arrangements affect the over-all volume and the timing of water trade through the year, from the Goulburn to the Murray system.

Over-all volume:

  • About 130 gigalitres (GL) of net trade opportunity from the Goulburn to the Murray system is expected in 2021-22, with average conditions.
  • In the past, Goulburn IVT volumes have varied from year to year depending on factors including the season, and on water and commodity prices. A record Goulburn IVT volume of 250 gigalitres occurred in 2017-18.

1 July to 15 December:

  • Under the new arrangements, when water can be delivered from the Goulburn IVT account, trade opportunity increases by an equivalent volume.
  • When the balance of water owed from the Goulburn to the Murray in that year drops below 190GL, trade opens.

15 December to 30 June:

  • On 15 December if Goulburn high-reliability water share seasonal determinations are not going to reach 100% additional trade opportunity is released.
  • From 15 December onwards, when water is delivered from the Goulburn IVT account, trade opportunity is not created.
  • Typically, the Goulburn IVT account balance will be drawn down, resulting in opening trade opportunity available on 1 July in the next season.
  • Opportunity to trade out of the Goulburn may still become available if back-trade occurs from the Murray to the Goulburn system.


  • Murray delivery shortfall risks have been increasing over the last 10 to 20 years.
  • Murray shortfall risks below Barmah cannot be managed to zero.
  • When a shortfall occurs, water will be temporarily rationed according to delivery share or extraction share.
  • A system shortfall occurs when there is not enough capacity in the river and channel system to supply all downstream water needs. There is a low risk of a system shortfall in 2021 – 22.
  • A delivery shortfall occurs when there is an unexpected spike in demand and not enough time to get more water from the dams to where users want it. There is always a risk of a delivery shortfall, especially during a heatwave.
  • For updated information on the shortfall risk, monitor the Murray Darling Basin Authority Weekly Report.
Content sources and further information

Embed video to the top of the page

Slides PDF from https://drive.google.com/file/d/1CvaWFE5jUQLBqSDU4vrcAMvm1snVAQ5b/view?usp=sharing


Irrigation webinar series recordings


Rating: 2.5/5. From 2 votes.
Please wait...
Share this:

Leave a comment