The Goulburn system’s inter-valley trade (IVT) account currently account owes about 274 GL to the Murray system.
Goulburn, Campaspe and Loddon systems cannot trade to the Victorian Murray system, New South Wales and South Australia if the volume traded out but not yet delivered to the Murray exceeds 200GL. The Murray Darling Basin Authority (MDBA) is the authority in charge of calling on the Goulburn system to deliver water to Murray customers. When the MDBA starts to call on delivering the water from the IVT account, the 74,000 megalitres must be repaid first to take the IVT limit under 200GL before trades can be permitted.