Water releases for the environment in the Thomson, Macalister, Tanjil and Latrobe rivers
Many rivers and wetlands have been modified to provide water for towns, industry and food production. This can mean about half of the natural flow into rivers and wetlands is removed each year.
Water for the environment has been set aside in the Thomson Reservoir, Lake Glenmaggie and Blue Rock Reservoir. This water is released to support the animals and plants of the Thomson, Macalister, Tanjil and Latrobe rivers to live, feed and breed.
Water releases are planned in these rivers in April and May 2017. These releases will trigger the migration and breeding of Australian grayling, a vulnerable migratory fish species.
Releases will be controlled to increase and decrease gradually. They will be well below minor flood levels and will not impact on properties or assets next to these rivers.
The expected conditions in these rivers are:
Thomson River at Coopers Creek
Start and end dates of water release: 19 to 30 April, 2017
Highest flow and water level: 800 megalitres per day; 0.6 metres
Dates when flow is highest: 22 to 25 April, 2017
Macalister River below Lake Glenmaggie
Start and end dates of water release: 21 to 29 April, 2017
Highest flow and water level: 350 megalitres per day; 0.56 metres
Dates when flow is highest: 22 to 26 April, 2017
Tanjil River at Tanjil South
Start and end dates of water release: 19 April to 1 May, 2017
Highest flow and water level: 800 megalitres per day; 1.6 metres
Dates when flow is highest: 23 to 24 April, 2017
Latrobe River at Thoms Bridge
Start and end dates of water release: 25 April to 30 April, 2017
Highest flow and water level: 1300 megalitres per day; 1.15 metres
Dates when flow is highest: 26 to 28 April, 2017
This is an estimate and may change slightly due to natural losses in the river and travel time of these water releases, particularly in the lower sections on the river.
Please be careful near these rivers at these times
For more information on water for the environment in our region, visit our Water for the Environment page.
If you would like to receive notifications of future water releases for the environment please complete this contact form.
Thomson River at Coopers Creek before autumn high flow
Thomson River at Coopers Creek during autumn high flow