Corangamite Shire

Council Services

Blue Green Algae - Current Advice


Blue-green algae warning for Lake Bullen Merri

The Department of Environment, Land, Water and Planning (DELWP) announced that a blue-green algae (BGA) bloom is currently affecting Lake Bullen Merri, near Camperdown.

The public is warned not to swim in and to avoid any direct contact with blue-green algae affected water.

Direct contact with blue-green algae can cause allergic reactions such as skin rashes or itchiness; sore eyes ears and nose or (if swallowed) gastroenteritis, nausea or vomiting.

People who come in to contact with contaminated water should wash immediately in fresh water. Seek medical advice if experiencing illness after contact with BGA affected water.

Any fish harvested from BGA affected water should have gills and guts removed prior to cooking.  People should not eat whole fish collected from Lake Bullen Merri. The type of algae affecting the lake produces toxins that can accumulate in the liver and internal organs of fish. Ingesting BGA toxins can lead to serious illness.  

Water from the affected water body should not be used for drinking, cooking or other domestic uses. Boiling the affected water will not make it safe for use.

For any health issues experienced after contact with BGA affected water please seek medical advice immediately.

Pet owners should prevent pets from drinking or having direct contact with contaminated water.

Visitors to the area are advised that they can still enjoy other recreational activities such as bushwalking and sightseeing around the water body.

There are many land-based activities in the region to try. Please contact or visit local tourist information outlets for more information.

Signage has been installed at both ends of the lake to advise the public. Water sampling will continue to occur as part of the monitoring of the algal bloom.

For information on blue-green algae, visit Department of Health and Human Services website:

To report any potential BGA blooms, please contact DELWP on 136 186.