Recreational blue-green algae alerts
Whenever we issue a blue-green algae alert, please be cautious with the affected waterway.
! Never drink untreated dam, river or creek water at any time.
Affected water might look like it has green, paint-like scum on the surface or near the edges, or greenish clumps in the water. It can also smell musty.
If you come into contact with the algae, rinse it off with fresh water. Seek medical advice if symptoms appear.
Alert types explained
White
No current blue-green algae alerts at this site.
Green
Blue-green algae detected at low densities.
While the water remains safe for domestic, stock and recreational use, please be cautious because the algae could multiply at any time. Read additional advice above
Amber
Blue-green algae is multiplying.
It is not safe to drink (without prior treatment) or to water animals.
While the water remains suitable for recreational use, algae levels could change fast – please avoid water showing signs of blue-green algae. Read additional advice above
Red
Blue-green algae is blooming.
This water should be considered toxic to humans and animals – stay away.
It is not safe to drink (without prior treatment) or to water animals. It is not safe for recreational activities. It is advisable to not eat fish or shellfish from the affected waterway. Read additional advice above
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