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All Current and Past Media Releases
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Media Release - Department of Water and Energy Date: 6 February 2009 RED ALERT FOR BLUE-GREEN ALGAE AT LAKE CARGELLIGO, BURRENDONG AND WINDAMERE DAMS The Central West Regional Algal Coordinating Committee has today issued a Red Level Warning (high alert) for blue-green algae at
Lake Cargelligo and Curlew Waters and
the Macquarie arm of Mookerawa at Burrendong Dam
Routine monitoring by State Water and the Department of Water and Energy has detected high numbers of potentially toxic blue-green algae in Lake Cargelligo, Curlew Waters and Burrendong Dam. Red Level Warning indicates that waters are unsuitable for recreational use or primary contact by domestic users and may also pose a threat to livestock.
The existing Red Alert at Windamere Dam will remain in place until confirmatory water samples from the lake and the river indicate levels have fallen.
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 inactivate algal toxins.
Algal blooms can develop in a 24 hour period and can spread rapidly along the river.
Local residents and visitors should avoid any water that appears bright green, where obvious green scums are present, or a distinctive odour is noticeable. Blue-green algae are usually very obvious, appearing as clumps or specs in the water and are often associated with a strong musty or earthy odour.
People are advised not to enter the water, and are further advised not to drink untreated water or bathe in water drawn from the river whilst a Red Level Warning is in place.
Landholders are advised to remove stock from the river foreshores as blue-green algae are known to cause stock illness or even death. Dogs are particularly susceptible as they ingest algae by licking their coats.
Livestock owners are reminded to continue to check stock water supplies for blue-green algae and to remove stock from foreshores where surface scums are visible or blue-green algae are suspected.
People should not eat mussels or crayfish from Red Level Warning areas. Any fish caught should be cleaned and washed thoroughly in uncontaminated water and any internal organs disposed of before consumption.
This Red Level Warning will remain in place until such time as the Central West Regional Algal Coordinating Committee advises that it has been lifted. The Department of Water and Energy and local councils will continue routine water quality monitoring of Lake Cargelligo, Curlew Waters, Burrendong and Windamere Dams.
Information updates about blue-green algae blooms and Red Level Warning areas can be obtained from the Regional Algal Coordinating Committee freecall Algal Information Hotline on 1800 999 457.
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