A red alert has been issued for Burrendong Dam due to high levels of blue-green algae.
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The whole storage is now on Red Alert due the high concentrations of blue-green algae being detected on both the Cudgegong (Cudgegong River) and Mookerawa (Macquarie River) arms of the storage.
People should not undertake activities – such as swimming and showering – where they may be coming into direct contact with the water.
Contact with the water may also pose a threat to livestock and pets.
The species of blue-green algae identified are potentially toxic and may cause gastroenteritis in humans if consumed and skin and eye irritations after contact.
Boiling the water does not remove algal toxins.
Livestock owners are reminded to continue to check stock water supplies for blue-green algae and to remove stock from foreshores where surface scum is visible or blue-green algae are suspected.
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 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 www.waternsw.com.au/water-quality/algae.