Blue green algae red alert warning lifted at Copeton Dam

Blue green algae red alert warning lifted at Copeton Dam

18 January 2018

The Barwon Regional Algal Coordinating Committee today announced that the previously issued red level algal warning (high alert) at Copeton Dam has been downgraded to amber level (medium alert).

Monitoring conducted by WaterNSW has shown that concentrations of blue-green algae have declined to medium levels prompting the lifting of the red alert.

While medium algae alert is still in place for Copeton Dam, the storage will be suitable for swimming and water sports, however people are advised not to drink untreated or boiled water from the storage due to the risk of stomach upsets. Boiling the water does not inactivate algae toxins.

People should use personal discretion at all times before entering a water body and be aware that algal blooms can develop in a 24 hour period.

The water may also be unsuitable for stock watering.

WaterNSW will continue routine water quality monitoring and advise any change as new results are received.

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 –

Contact: Tony Webber

Phone: 0428 613 478


Tuesday 21 January
1,105,833 ML
2,596,150 ML
8,652 ML
1,236 ML
-3,034 ML
Tuesday 21 January