Blue green algae Red Alert warning lifted at Windamere Dam

Blue green algae Red Alert warning lifted at Windamere Dam

04 June 2021

The previously issued high level algal warning (Red Alert) at Windamere Dam near Mudgee has been cleared.

Monitoring conducted by WaterNSW has shown that concentrations of blue-green algae have declined to 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 visiting –

Media Contact – Tony Webber – 0428 613 478 or Angela Davies 0467 947 426

General inquiries – Tracy Fulford- 02 6763 3910


Tuesday 18 January
2,497,329 ML
2,581,850 ML
9,342 ML
1,335 ML
-3,171 ML
Tuesday 18 January