Blue-green algae alert for Lake Wallace Dam

Published on 13 January 2025

Snowy Monaro Regional Council advises that a red level blue-green algae alert has been issued for Lake Wallace Dam, Nimmitabel.

The red level alert means the untreated water is unsuitable for all uses, including drinking, livestock and recreational use.

The potable water supply for Nimmitabel is now sourced from bore water, which is safe for consumption and complies with all Australian Drinking Water Guidelines.

Testing has shown the Maclaughlin River has a low level detection of blue green algae, therefore water users should use personal discretion at all times before entering or utilising a water body, for example livestock feed, as algal conditions can change rapidly.

Council is currently evaluating the need for a conserve water notice to increase the longevity of the bore supply until the alert is lifted. 

The red level alert will remain in effect until monitoring and test results indicate that the risk has been adequately reduced.

We will continue to closely monitor the situation and act on the advice of Water NSW, NSW Health and the Environment Protection Authority (EPA) as required.

For more information on Algae Blooms visit https://www.waternsw.com.au/water-services/water-quality/algae

Please contact us with any questions or concerns: council@smrc.nsw.gov.au or 1300 345 345.