Blue-green algae red alert warning lifted for Red Cliffs to Merbein

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13 January 2020


The previously issued high level algal warnings (Red Alert) for Red Cliffs to Merbein and Curlwaa to Wentworth on the Murray River have been cleared. 

Monitoring conducted by WaterNSW and Lower Murray Water has shown that concentrations of blue-green algae have declined prompting the lifting of the Red Alert.

Blue-green algae occur naturally and can reproduce quickly in favourable conditions where there is still or slow-flowing water, abundant sunlight and sufficient levels of nutrients.

Blue-green algae usually appear as green paint-like scums on the water, near the edges, or as greenish clumps throughout the water. It makes the water appear dirty, green or discoloured and generally has a strong musty or earthy odour.

People who believe they may have been affected by blue-green algae are advised to seek medical advice.

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

NSW DPI Fact Sheet:  Farm water quality and treatment for algae – click here

Media Contact – Tony Webber – 0428 613 478

General inquiries – Elizabeth Symes- 02 6022 5326

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