Algae alerts

30 MARCH 2023

Blue-green Algae Red Alert warning for Lachlan River at Willandra Weir has been downgraded

The Red Alert level warning issued by WaterNSW for a high level of potentially toxic blue-green algae has been downgraded for Lachlan River at Willandra Weir.
20 MARCH 2023

Blue-green algae Red Alert warning for Wyangala Dam has been cleared

The red alert warning for blue-green algae at Wyangala Dam (Wall Station 1) has been lifted after two consecutive algal samples showed levels below the red alert threshold. The site is now on an amber alert for blue-green algae.
17 MARCH 2023

Red, blue-green algal warnings lifted for the Darling River at Pooncarie and Tapio

The red alert warnings for blue-green algae for the Darling River at Pooncarie and Tapio were lifted. Both sites are now on amber alert for blue-green algae.
17 MARCH 2023

Blue-green algal red alert issued for Chifley Dam

WaterNSW has issued a Red Alert advisory for high levels of potentially toxic blue-green algae (High Alert) for Chifley Dam on behalf of Bathurst Regional Council. Chifley Dam is located approximately 20km South of Bathurst. This alert is based on visual observation and satellite imagery.
17 MARCH 2023

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

WaterNSW has issued a Red Alert advisory for high levels of potentially toxic blue-green algae for the Lachlan River at Willandra Weir. Water users downstream of this location should apply caution and regularly check water supplies.
15 MARCH 2023

Blue-green algal red alert issued for the Murray River at Fort Courage as well as the Darling River at Tapio

WaterNSW has issued a red alert advisory for high levels of potentially toxic blue-green algae for the Murray River at Fort Courage as well as the Darling River at Tapio.
9 MARCH 2023

Blue-green algal red alert issued for the Murray River at Lock 9

WaterNSW has issued a red alert advisory for high levels of potentially toxic blue-green algae for the Murray River at Lock 9.
7 MARCH 2023

Red Alert, blue-green algal warnings lifted for Murray River at Murray Downs as well as the Wakool River at Wakool-Barham Road crossing

The red alert warnings for blue-green algae for the Murray River at Murray Downs as well as the Wakool River at the Wakool-Barham Road crossing were lifted following two consecutive algal sample results of lower than red alert level. Both sites are now on amber alert for blue-green algae.
7 MARCH 2023

Red Alert blue-green algal warning lifted for Hume Dam

The red alert warning for blue-green algae for Hume Dam has been lifted following two consecutive algal sample results of lower than red alert level. Hume Dam is now on amber alert for blue-green algae.
1 MARCH 2023

Blue-green Algae Red Alert warning for Lake Ainsworth has been cleared

The Red Alert level warning issued by Ballina Shire Council for a high level of potentially toxic blue-green algae has been cleared for Lake Ainsworth in the North coast region.

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