Algae alerts

15 JANUARY 2025

Blue-green algae red alert lifted for Toonumbar Dam and Iron Pot Creek immediately downstream of the dam

The red alert warning issued on 22 November 2024 for high levels of potentially toxic blue-green algae for Toonumbar Dam and Iron Pot Creek immediately downstream of the dam in the north of the state has been lifted. Toonumbar Dam and the downstream site are now on amber alert for blue-green algae.
15 JANUARY 2025

Blue-green algae Red Alert for Lake Cargelligo Outlet at Lake Creek

WaterNSW has issued a Red Alert warning for high levels of potentially toxic blue-green algae for Lake Cargelligo Outlet at Lake Creek.
13 JANUARY 2025

Blue-green algae Red Alert for Darling River at Burtundy

WaterNSW has issued a Red Alert warning for high levels of potentially toxic blue-green algae for the Darling River at Burtundy.
13 JANUARY 2025

Blue-green algae Red Alert lifted for Darling River at Ellerslie

The Red Alert warning issued on 11 December 2024 for high levels of potentially toxic blue-green algae for the Darling River at Ellerslie has been lifted. The Darling River at Ellerslie is now on Amber Alert.
13 JANUARY 2025

Blue-green algae Red Alert lifted for Darling River at Tolarno and Pooncarie

The Red Alert warning issued on 17 December 2024 for high levels of potentially toxic blue-green algae for the Darling River at Tolarno and Pooncarie has been lifted. At these sampling sites, the Darling River is now on Amber Alert.
10 JANUARY 2025

Blue-green algae Red Alert for the Lachlan River from Lake Brewster to Willandra Weir

WaterNSW has issued a Red Alert warning for high levels of potentially toxic blue-green algae for the Lachlan River from the Lake Brewster outlet channel to Willandra Weir.
8 JANUARY 2025

Blue-green algae Red Alert lifted for Pindari Dam

WaterNSW has lifted the blue-green algae Red Alert warning issued on 27 August 2024 for Pindari Dam. Pindari Dam is now on Amber Alert.
6 JANUARY 2025

Blue-green algae Red Alert for Lake Brewster

WaterNSW has issued a Red Alert warning for high levels of potentially toxic blue-green algae for Lake Brewster.
24 DECEMBER 2024

Blue-green algae Red Alert for Lake Wetherell site 2 near Menindee

WaterNSW has issued a Red Alert warning for high levels of blue-green algae for Lake Wetherell site 2 near Menindee.
20 DECEMBER 2024

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

WaterNSW has issued a Red Alert warning for high levels of potentially toxic blue-green algae for the Great Darling Anabranch at the Silver City Highway crossing.

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