Blue-green algae red alert warnings lifted for Lake Brewster Regulator Channel

Blue-green algae red alert warnings lifted for Lake Brewster Regulator Channel

16 April 2021

The red alert blue-green algal warning for Lake Brewster Regulator Channel has been lifted following two consecutive algal sample results lower than red alert level. The site is now on green alert for blue-green algae.

While on a green alert, the water is generally considered to be suitable for water sports, but water users are advised to exercise caution. It is also advised not to drink untreated or boiled water from the storage due to the risk of stomach upsets. Boiling the water does not inactivate algal toxins. The water should be considered unsuitable for potable use and alternative supplies or prior treatment of raw water for domestic purposes should be considered.

As algal numbers can change dramatically with changes in conditions, water uses should avoid water which is discoloured or gives off an earthy or musty odour.

Water users should use personal discretion at all times before entering a water body and be aware that the algal situation can change quickly.

WaterNSW will continue routine water quality monitoring and advise of 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.

Updates and information about blue-green algae blooms and red alert warning areas can be obtained by calling 1800 999 457 or visiting – http://www.waternsw.com.au/water-quality/algae

Media Contact – Tony Webber 0428 613 478 or Angela Davies 0467 947 426

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