Liverpool Council have issued an update on Sefton Park after blue-green algae had closed the lake.
The picturesque lake was cordoned off, in parts, because of toxic algae which posed a danger to young children and animals.
The local authority had ordered the ban of swimming, fishing and boating at lakes in Sefton Park, Walton Hall Park and Newsham Park whilst tests are carried out.
The toxin can cause vomiting in humans and prove life threatening to animals and the council is warning dog walkers not to allow their pets to get near the water.
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On Thursday evening, the council tweeted to say it was “confident” conditions were safe again.
It tweeted: “After a series of toxicity tests & inspections of #SeftonPark lake, our park officers are confident the lake is now clear of blue-green algae and are getting to ready to reopen it within the next 24 hours.”
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Blue-Green algae blooms are not uncommon in summer, especially during a warm weather spell as recently experienced.
The parks themselves remained open to the public during this time.
The lake was off limits as water samples were sent to the Environment Agency for a toxicology report.