Diverters on the Ovens and King systems have spill entitlements that can be accessed each water year from 1 July until the time when the supply storage ceases to spill or pass flows above in-valley requirements.
GMW monitors storage inflow conditions and forecast when regulated releases are expected to exceed inflows, i.e. when the storage ceases to spill. The end of access to spill entitlement is usually towards the end of the calendar year, but varies depending on seasonal conditions.
GMW aim to provide 2 to 3 weeks’ notification to customers that access to spill entitlements will end for the current water year.
For customers that have lodged an order through WaterLINE, their meters are read on the date when access to spill entitlements ends. Use up to their spill entitlement is deemed and any additional use is deemed against their high-reliability water shares (HRWS). All other customer use will be deemed against their HRWS entitlement at the end of the season. Customers who have not lodged an order through WaterLINE will have all use deemed against their HRWS.
All customers are encouraged to submit all orders through WaterLINE to ensure supply can be met and accurately accounted for.
King System
King River and regulated anabranch diverters are advised that access to Spill Reliability Water Shares for season 2025/26 is planned to end on Wednesday 28th January 2026.
Ovens System
Buffalo River, Ovens River and regulated anabranch diverters are advised that access to Spill Reliability Water Shares for season 2025/26 is planned to end on Wednesday 28th January 2026.