Algae alerts

25 MARCH 2025

Blue-green algae Red Alert lifted for Great Darling Anabranch at Silver City Highway crossing

The Red Alert issued on 20 December 2024 for high levels of potentially toxic blue-green algae for the Great Darling Anabranch at Silver City Highway crossing has been lifted to an Amber Alert.
24 MARCH 2025

Blue-green algae red alert lifted for Windamere Dam

WaterNSW has lifted the blue-green algae red alert warning issued on 7 March for Windamere Dam. Windamere Dam is now on amber alert.
24 MARCH 2025

Blue-green algae Red Alert for Keepit Dam

WaterNSW has issued a Red Alert warning for high levels of potentially toxic blue-green algae at Keepit Dam, located approximately 40km north-west of Tamworth.
21 MARCH 2025

Blue-green algae Red Alert for Barwon River at Mungindi

WaterNSW has issued a Red Alert warning for high levels of potentially toxic blue-green algae for Barwon River at Mungindi.
20 MARCH 2025

Blue-green algae Red Alert for Lake Menindee

WaterNSW has issued a Red Alert warning for high levels of potentially toxic blue-green algae for Lake Menindee.
20 MARCH 2025

Blue-green algae red alert lifted for Keepit Dam

WaterNSW has lifted the blue-green algae red alert warning issued on 7 March for Keepit Dam.
10 MARCH 2025

Blue-green algae red alert for Burrendong Dam

WaterNSW has issued a red alert warning for high levels of potentially toxic blue-green algae at Burrendong Dam, located approximately 20km from Wellington.
10 MARCH 2025

Blue-green algae Red Alert lifted for the Lachlan River at Willandra Weir

The Red Alert issued on 19 February 2025 for high levels of potentially toxic blue-green algae for the Lachlan River at Willandra Weir has been lifted. The location is now on Amber Alert.
7 MARCH 2025

Blue-green algae Red Alert for Windamere Dam

WaterNSW has issued a Red Alert warning for high levels of potentially toxic blue-green algae at Windamere Dam, located approximately 20km south-east of Mudgee.
7 MARCH 2025

Blue-green algae Red Alert for Keepit Dam

WaterNSW has issued a Red Alert warning for high levels of potentially toxic blue-green algae at Keepit Dam.

Related links

Algae Alerts NSW map

WaterNSW acknowledges the traditional custodians of the lands and waters on which we work and pay our respects to all elders past, present and emerging. Learn more