Blue green algae Red Alert warning lifted for Red Cliffs to Merbein

Blue green algae Red Alert warning lifted for Red Cliffs to Merbein

03 January 2020

The previously issued high level algal warnings (Red Alert) for Red Cliffs to Merbein on the Murray River have been cleared. A Red Alert remains current downstream at Curlwaa and further advice will be provided following additional monitoring.

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 –

Media Contact – Tony Webber – 0428 613 478

General inquiries – Elizabeth Symes- 02 6022 5326


Tuesday 11 August
2,450,585 ML
2,581,850 ML
9,225 ML
1,318 ML
253,153 ML
Tuesday 11 August