Blue green algae Red Alert warning for Murray River at Tocumwal

Blue green algae Red Alert warning for Murray River at Tocumwal

23 March 2020

A high-level algal warning (Red Alert) has been issued for Tocumwal on the River Murray. This declaration of a red alert follows the weekly testing undertaken by WaterNSW. Levels of blue green algae in other sections of the river continue to fluctuate.

A red alert level warning indicates that people should not undertake recreational activities where they may be coming into direct contact with the water. Contact with the water may also pose a threat to livestock, and pets.

The dominant cyanobacteria detected may produce toxins and people may detect a strong musty odour. People are advised not to enter the water, not to drink untreated water or bathe in untreated water while a red alert level warning is in place. Boiling the water will not remove algal toxins.

People should not eat fish, mussels or crayfish from red alert warning areas.

Blue-green algae usually appear as green paint-like scums on the water, near the edges, or as greenish clumps throughout the water. The water can appear dirty, green or discoloured.

Updates about blue-green algae blooms and red level warning areas can be obtained by calling 1800 999 457 or visiting –

Media Contact – Tony Webber – 0428 613 478

General inquiries – Elizabeth Symes- 0439 199 077


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Saturday 27 November