Goulburn-Murray Water (GMW) has declared a significant decline in blue-green algae at Hepburns Lagoon following a warning that lasted a record 609 days.
The removal of the warning means there are currently no blue-green algae warnings in GMW’s waterways.
General Manager Water Delivery Scott Barber said it was important to remember blue-green algae outbreaks can occur at any time.
“GMW undertakes regular water quality monitoring and will issue a warning if blue-green algae reach levels deemed unsafe by national health guidelines,” Mr Barber said.
“The warning for Hepburn’s Lagoon was the longest GMW blue-green algae warning in recorded history, so it’s good to see levels have subsided there.”
Blue-green algae are naturally-occurring bacteria in waterways and storages. Hot weather and low slow flowing water provide peak conditions for algae levels to increase.
Blue-green algae contain toxins that are harmful to humans and animals, so when warnings are current it is recommended to avoid contact with affected water.
Warnings are posted at www.gmwater.com.au/news/bga and more information can be found in GMW’s blue-green algae fact sheets.
Located north of Ballarat in central-western Victoria, Hepburns Lagoon has a capacity of 3,000 ML and regulates Langdon’s Creek flows for irrigation and domestic and stock purposes.
There are no recreational facilities at Hepburns Lagoon and the storage is surrounded by private land.