The Great Darling Anabranch at the Silver City Highway crossing is on Red Alert for blue-green algae.
The Murray River at Buronga, Merbein, Curlwaa, Fort Courage, Lock 8 and Lake Victoria outlet regulator is on Amber Alert for blue-green algae.
There are no alerts for the Darling River.
The Great Darling Anabranch has ceased to flow along its entire length, and the Silver City Highway site on Red Alert remains part of a disconnected residual pool.
Water NSW says these stagnant conditions likely contributed to the high concentrations of blue-green algae recorded at the site.
Blue-green algae can reproduce quickly in still or slow-flowing water when there is abundant sunlight and sufficient nutrients.
All untreated water in the Red Alert area should be considered unsuitable for potable use.
Boiling the water does not inactivate algal toxins.
As algal numbers can change dramatically with changes in conditions, water users should avoid water which is discoloured or gives off an earthy or musty odour.
Updates and information about blue-green algae blooms and red level warning areas can be obtained by visiting – www.waternsw.com.au/algae or Water Insights or calling 1800 999 457.
Image: https://pixabay.com/photos/cyanobacteria-cyanophyta-algae-4469840/
