Algal red alert for Lower Darling River at Pooncarie and Burtundy

Algal red alert for Lower Darling River at Pooncarie and Burtundy

27 February 2018

A red level warning (high alert) for blue-green algae has been issued for the Lower Darling River from Pooncarie to Burtundy inclusive, WaterNSW announced today. This red alert may slowly move further downstream with water flow although current results are at amber levels.

WaterNSW takes into account water quality considerations such as blue-green algal concentrations when deciding on release rates under the current Lower Darling operations plan, which was formulated in consultation with downstream landholders.

A red alert level warning indicates that people should not undertake recreational activities where they may be coming into direct contact with the water such as swimming, as well as domestic uses including showering and washing. Contact with the water may also pose a threat to livestock and pets.

Warning signs are positioned at key recreational areas and will remain in place while high levels of blue-green algae are present.

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.

People are advised not to enter the water, not to drink untreated water or bathe in water drawn from the dam while this red alert level warning is in place. Town water supplies remain unaffected and safe to drink.

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 or earthy odour.

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.

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.

It is not possible to predict how long the algae will remain at high levels. Regular monitoring will continue and the alert will be lifted as soon as the high levels of algae dissipate.

People who believe they may have been affected by blue-green algae are advised to seek medical advice.

Information updates about blue-green algae blooms and red level warning areas can be obtained from the Regional Algal Coordinating Committee free-call Algal Information Hotline on 1800 999 457 or visit our algae webpage.

Contact: Tony Webber

Phone: 0428 613 478

61.1
Friday 14 December
-0.3
1,577,985 ML
2,581,850 ML
11,682 ML
1,669 ML
-4,818 ML
Friday 14 December