| You have been warned that there are high levels of blue-green algae, but what does this mean? |
What is blue-green algae?
Blue-green algae are naturally occurring bacteria that have the potential to be harmful as they can make people and animals sick. For more specific information on
blue-green algae click here
How is the water monitored for blue-green algae?
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Blue-green algae under a microscope
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Water samples are sent to a laboratory for testing. Essentially, the blue-green algae are counted under a microscope.
Why is there a warning?
Low levels of blue-green algae are present in water all the time, however the Department of Sustainability and Environment and the Department of Health set a maximum level considered safe. Warnings are issued when the level of blue-green algae exceeds safe levels and G-MW is required to warn the public.
What do I do if I think I can see blue-green algae?
As a precaution G-MW recommends the public avoid any scums. Potential blooms can be reported to the G-MW blue-green algae hotline on (03) 5826 3785.
Can the blue-green algae be removed?
Blue-green algae are very small and therefore G-MW can not remove them manually. Chemicals can not be used in natural waterbodies either.
What can be done to reduce the risk of blooms occurring?
G-MW works with Local Government, Catchment Management Authorities, Urban Water Corporations and others to improve catchment health and water quality.
Blue-green algae outbreak at Tullaroop Reservoir
Download a PDF fact sheet version of this information