Blue green algae Red Alert warning lifted at Windamere Dam

Blue green algae Red Alert warning lifted at Windamere Dam

20 August 2019

The high-level algal warning (Red Alert) that was in place at Windamere Dam, upstream of Mudgee, has been lifted.

Monitoring by WaterNSW has shown that concentrations of blue-green algae have declined, prompting the removal 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 our algae webpage.

Media Contact – Tony Webber – 0428 613 478
General inquiries – Tracy Fulford- 02 6763 3910


Friday 25 June
2,484,588 ML
2,581,850 ML
9,070 ML
1,296 ML
4,003 ML
Friday 25 June